Electromechanical surgical stapler including trocar assembly release mechanism

Description

BACKGROUND
1. Technical Field

The present disclosure relates to powered surgical devices. More specifically, the present disclosure relates to reusable handheld electromechanical surgical devices including trocar assembly release mechanisms or trocar lock assemblies, and trocar connection indicators.

2. Background of Related Art

Circular stapling instruments for performing surgical procedures such as anastomoses, hemorrhoidectomies, and mucosectomies are well known. These devices include an anvil assembly having a center rod and an anvil head supported on the center rod. The center rod of the anvil assembly is attachable to a trocar of the circular stapling instrument which enables linear translation of the anvil assembly. Typically, during a surgical procedure, the tool assembly of the circular stapling instrument is inserted into a tubular section or sections of tissue to join the tissue sections or remove diseased or damaged tissue from within the tissue section. Following a surgical procedure, it is desirable to reprocess the circular stapling instrument in order to minimize overall costs of the surgical procedures. The reprocessing typically requires cleaning of the circular stapling instrument via autoclaving and the like. In order to improve the efficiency of the reprocessing, removability of the trocar is desirable.

Accordingly, in view thereof, it is desirable to provide locks and indicators which alert the end user (e.g., doctor, nurse, clinician, etc.) that a trocar is properly attached to the underlying circular stapling instrument.

SUMMARY

In accordance with aspects of the present disclosure, an adapter assembly includes an outer tube, a trocar assembly, and a trocar release mechanism. The trocar assembly is disposed within a distal portion of the outer tube. The trocar release mechanism includes a pair of pins, a release button, a spring clip, and a spring latch. The pair of pins is slidably supported within the outer tube. The release button is supported in the outer tube and is movable between an extended condition and a depressed condition. The spring clip is slidably supported in the outer tube. The spring clip interconnects the release button and the pair of pins such that when the release button is in the extended condition, the trocar assembly is secured to the outer tube and when the release button is in the depressed condition, the trocar assembly is removable from the outer tube. The spring latch is fixed to the release button such that the spring clip is secured to the release button.

In aspects, the trocar release mechanism includes a pair of pins that are slidably supported within the outer tube. The spring clip may interconnect the release button with the pair of pins. In the extended condition of the release button, the spring clip may maintain the pair of pins in an extended position and in the depressed condition of the release button, the spring clip may withdraw the pair of pins form the extended position to a withdrawn position.

In some aspects, the trocar assembly includes a trocar housing and a trocar that is slidably disposed within the trocar housing. The trocar housing may define a pair of radially opposed openings. Each pin of the trocar release mechanism may be received within a respective opening of the pair of openings to secure the trocar assembly within the outer tube in the extended position and withdrawn from the respective opening in the withdrawn position. In the extended position the pair of pins is configured to provide a visual indication to a user that the trocar assembly is locked in the outer tube.

In certain aspects, the outer tube defines a pair of opposed openings. The pair of pins of the trocar release mechanism has a fully extended position in which each pin extends into a respective one of the opposed openings in which the pair of pins are configured to provide a visual indication to a user that the trocar assembly is not secured within the outer tube. The trocar release mechanism may include a biasing member that is supported within the outer tube and acts on the release button to urge the release button to the extended condition.

In particular aspects, the spring latch may include a planar body and a pair of staking tabs that extends orthogonally from the planar body into an inner surface of the release button to fix the spring latch to the release button. The spring clip may be movable in two degrees of freedom when secured to the release button by the spring latch.

In some aspects, the spring clip includes a backspan that is secured to the release button by the spring latch and a pair of legs that extend from the back span. Each leg may include a gooseneck portion along a length thereof such that a distal portion of each pair of legs is closer to one another as compared to a proximal portion of each of the pair of legs. Movement of the release button between the extended condition and the depressed condition moves the gooseneck portion of each of the pair of legs of the spring clip to traverse the pair of pins. When the release button is in the extended condition, the distal portion of each of the spring clap may be associated with a respective pin and when the release button is in the depressed condition, the proximal portion of each leg of the spring clip may be associated with the respective pin.

In certain aspects, the adapter assembly is configured to releasably secure to an electromechanical handle assembly.

A method of manufacturing an adapter assembly includes fixing a spring latch to an inner surface of a release button, disposing the release button within a space defined in an outer tube of the adapter assembly, and providing a trocar assembly that is configured to be disposed within the outer tube and is secured within the outer tube by a spring clip that is secured to the release button by the spring latch. Fixing the spring latch to the inner surface of the release button may include aligning the body of the spring latch with the inner surface of the release button, heating two staking tabs of the spring latch that extends orthogonally from a body of the spring latch, and driving the staking tabs into the inner surface of the release button to fix the spring latch to the release button.

In aspects, driving the staking tabs into the inner surface of the release button includes the staking tabs melting holes into the inner surface. The method may include positioning a backspan of the spring clip within a groove defined in the inner surface of the release button before fixing the spring latch to the inner surface. Aligning the body of the spring latch with the inner surface of the release button may include positioning a retention tab that extends form the body over a portion of the backspan of the spring clip disposed within the groove.

In some aspects, the method includes positioning a backspan of the spring clip within a groove defined in the inner surface of the release button after fixing the spring latch to the inner surface of the release button.

In certain aspects the method includes cutting a flat sheet of metal to form the body, the staking tabs, and a retention tab of the spring latch such that the staking tabs extend from opposite sides of the body and the retention tab extends from a side of the body positioned between the opposite sides of the body. The method may include aligning the staking tabs downward such that the staking tabs are positioned orthogonal to a plane defined by the body. The method may also include bending the retention tab upward to a goose neck configuration such that an inner surface of the retention tab is arcuate towards a center of curvature that is disposed in a plane defined by the body.

In another aspect of the present disclosure, an adapter assembly for connecting a surgical reload to an electromechanical handle assembly is provided. The adapter assembly includes: an outer tube; a trocar assembly releasably securable within a distal end of the outer tube, the trocar assembly including a trocar housing defining a pair of openings therein, wherein the pair of openings are in opposed radially extending relation to one another; and a trocar assembly release mechanism configured to releasably secure the trocar assembly within the outer tube.

The release mechanism includes: a pair of pins slidably supported within the outer tube, wherein each pin is selectively receivable within a respective opening of the pair of openings formed in the trocar housing; a release button supported in the outer tube and movable between an extended condition and a depressed condition; and a spring clip slidably supported in the outer tube, the spring clip interconnecting the release button and the pair of pins.

When the release button is in the extended condition, the spring clip acts on the pair of pins to maintain the pair of pins disposed within the pair of openings of the trocar housing to maintain the trocar assembly connected to the outer tube. When the release button is in the depressed condition, the spring clip acts on the pair of pins to maintain the pair of pins withdrawn from the pair of openings of the trocar housing to release the trocar assembly from the outer tube.

The pair of pins may be extended radially outwardly when the release button is in the depressed condition, whereby a visual indication is provided to a user that the trocar assembly is not locked in the outer tube.

The trocar assembly release mechanism may further include a biasing member supported within the outer tube and acting on the release button to urge the release button to the extended condition.

The spring clip of the trocar assembly release mechanism may include a backspan connected to the release button, and a pair of legs extending from the backspan. Each leg may define a gooseneck along a length thereof such that a distal portion of each of the pair of legs is closer to one another as compared to a proximal portion of each of the pair of legs.

Movement of the release button between the extended condition and the depressed condition may cause the gooseneck portion of the pair of legs of the spring clip to traverse the pair of pins.

When the release button is in the extended condition, the distal portions of the pair of legs of the spring clip may be associated with the pair of pins. When the release button is in the depressed condition, the proximal portions of the pair of legs of the spring clip may be associated with the pair of pins.

The trocar assembly may further include: a trocar member slidably disposed within a lumen of the trocar housing, wherein the trocar member and the trocar housing are keyed to one another to inhibit rotation relative to one another, wherein the trocar member includes a distal end defining a tip and a proximal end defining an internally threaded bore; and a drive screw having a threaded distal portion engaged with the threaded bore of the trocar member, and a proximal force receiving feature for receiving rotative forces from the electromechanical handle assembly.

The outer tube may include a pair of openings formed through an outer surface thereof. Each of the pair of openings of the outer tube may be in registration with a respective one of the pair of pins.

When the release button is in the depressed condition, the pair of pins may be at least partially disposed within the pair of openings of the outer tube.

According to another aspect of the present disclosure, an adapter assembly for connecting a surgical reload to an electromechanical handle assembly is provided. The adapter assembly includes: an outer tube; a trocar assembly releasably securable within a distal end of the outer tube, the trocar assembly including a trocar housing defining a pair of openings therein, wherein the pair of openings are in opposed radially extending relation to one another; and a trocar assembly release mechanism configured to releasably secure the trocar assembly within the outer tube.

The release mechanism includes: a pair of release buttons rotatably supported on opposed radial sides of the outer tube, wherein each release button is selectively receivable within a respective opening of the pair of openings formed in the trocar housing, each release button being movable between a release condition and an engaged condition; and a pair of biasing members supported in the outer tube and associated with a respective one of the pair of release buttons, wherein the biasing members urge the pair of release buttons to the engaged condition and into engagement with the trocar housing.

When the release buttons are in the engaged condition, the release buttons are disposed within the pair of openings of the trocar housing to maintain the trocar assembly connected to the outer tube. When the release buttons are in the depressed condition, the release buttons are disengaged from the pair of openings of the trocar housing to release the trocar assembly from the outer tube.

The trocar release mechanism may include a pair of pivot pins, each pivot pin pivotably supporting a respective release button.

Each release button may be substantially semi-circular, extending substantially 180° about a respective pivot pin thereof.

Each release button may define a distal face against which a portion of a respective biasing member engages to urge release button to the engaged condition and into engagement with the trocar housing.

Each release button may define a proximal face projecting to a tail, wherein the tails enter a respective opening of the pair of openings of the trocar housing, when the release buttons are in the engaged condition, to maintain the trocar assembly connected to the outer tube.

Each release button may include gripping features formed thereon.

According to a further aspect of the present disclosure, an adapter assembly for connecting a surgical reload to an electromechanical handle assembly, is provided. The adapter assembly includes an outer tube; a trocar assembly releasably securable within a distal end of the outer tube, the trocar assembly including a trocar housing defining a pair of openings therein, wherein the pair of openings are in opposed radially extending relation to one another; and a trocar assembly release mechanism configured to releasably secure the trocar assembly within the outer tube.

The release mechanism includes a pair of rocker pins rotatably supported within the outer tube, wherein each rocker pin is selectively receivable within a respective opening of the pair of openings formed in the trocar housing; a release button supported in the outer tube and movable between an extended condition and a depressed condition; and a spring clip slidably supported in the outer tube, the spring clip connected to the release button and received in a pocket of each of the pair of rocker pins.

When the release button is in the extended condition, the spring clip acts on the pair of rocker pins to maintain the pair of rocker pins disposed within the pair of openings of the trocar housing to maintain the trocar assembly connected to the outer tube. When the release button is in the depressed condition, the spring clip acts on the pair of rocker pins to maintain the pair of rocker pins withdrawn from the pair of openings of the trocar housing to release the trocar assembly from the outer tube.

The pair of rocker pins may be rotated radially outwardly when the release button is in the depressed condition.

The trocar assembly release mechanism may further include a biasing member supported within the outer tube and acting on the release button to urge the release button to the extended condition.

The spring clip of the trocar assembly release mechanism may include a backspan connected to the release button; and a pair of legs extending from the backspan, wherein each leg defines an inturned distal free end such that the distal free end of each of the pair of legs is closer to one another as compared to a proximal portion of each of the pair of legs.

Movement of the release button between the extended condition and the depressed condition may cause the distal free end of the pair of legs of the spring clip to rotate the pair of rocker pins, and may cause the pair of legs of the spring clip to splay radially outward.

When the release button is in the extended condition, the distal free end of each of the pair of legs of the spring clip may bias the pair of rocker pins radially towards one another.

The trocar assembly may further include a trocar member slidably disposed within a lumen of the trocar housing. The trocar member and the trocar housing may be keyed to one another to inhibit rotation relative to one another. The trocar member may include a distal end defining a tip and a proximal end defining an internally threaded bore.

The trocar assembly may further include a drive screw having a threaded distal portion engaged with the threaded bore of the trocar member, and a proximal force receiving feature for receiving rotative forces from the electromechanical handle assembly.

According to a further aspect of the present disclosure, an adapter assembly for connecting a surgical reload to a handle assembly, is provided. The adapter assembly includes an outer tube; a trocar assembly disposed within a distal portion of the outer tube; and a trocar release mechanism. The trocar release mechanism includes a pair of rocker pins rotatably supported within the outer tube, each rocker pin defining a pocket therein; a release button supported in the outer tube and movable between an extended condition and a depressed condition; and a spring clip slidably supported in the outer tube, the spring clip connected to the release button and received in each pocket of the pair of rocker pins such that when the release button is in the extended condition the trocar assembly is secured to the outer tube and when the release button is in the depressed condition the trocar assembly is removable from the outer tube.

In the extended condition of the release button, the spring clip may maintain the pair of rocker pins in an extended position. In the depressed condition of the release button, the spring clip may withdraw the pair of rocker pins from the extended position to a withdrawn position.

The trocar assembly may include a trocar housing and a trocar slidably disposed within the trocar housing.

The trocar housing may define a pair of radially opposed openings. Each rocker pin of the trocar release mechanism may be received within a respective opening of the pair of openings to secure the trocar assembly within the outer tube in the extended position and withdrawn from the respective opening in the withdrawn position.

The trocar release mechanism may further include a biasing member supported within the outer tube and acting on the release button to urge the release button to the extended condition.

The spring clip may include a backspan pivotally secured to the release button; and a pair of legs extending from the backspan, wherein each leg defines an inturned distal free end such that the distal free end of each of the pair of legs is closer to one another as compared to a proximal end of each of the pair of legs.

Movement of the release button between the extended condition and the depressed condition may move the pair of legs of the spring clip to rotate the pair of rocker pins.

According to still another aspect of the present disclosure, a further adapter assembly for connecting a surgical reload to an electromechanical handle assembly, is provided. The adapter assembly includes an outer tube; a trocar assembly releasably securable within a distal end of the outer tube, the trocar assembly including a trocar housing defining a pair of openings therein, wherein the pair of openings are in opposed radially extending relation to one another; and a trocar assembly release mechanism configured to releasably secure the trocar assembly within the outer tube. The release mechanism includes a release button supported in the outer tube and movable between an extended condition and a depressed condition; and a spring clip slidably supported in the outer tube and connected to the release button. The spring clip includes a backspan connected to the release button; and a pair of legs extending from the backspan. The release mechanism further includes a pair of lock cam pins supported within the outer tube, wherein each lock cam pin is secured to a respective leg of the spring clip, and wherein each lock cam pin is selectively receivable within a respective opening of the pair of openings formed in the trocar housing. Wherein, when the release button is moved from the extended condition to the depressed condition, the spring clip acts on the pair of lock cam pins to withdraw the pair of lock cam pins from the openings of the trocar housing to release the trocar assembly from the outer tube.

When the release button is moved from the depressed condition to the extended condition, the spring clip may act on the pair of lock cam pins to urge the pair of lock cam pins into the openings of the trocar housing to lock the trocar assembly into the outer tube.

The trocar assembly release mechanism may further include a biasing member supported within the outer tube and acting on the release button to urge the release button to the extended condition.

The spring clip of the trocar assembly release mechanism may create a spring bias when the release button is moved from the extended condition to the depressed condition.

Movement of the release button from the extended condition to the depressed condition may cause the pair of legs of the spring clip to splay outwardly.

When the release button is in the extended condition, the pair of legs of the spring clip may bias the pair of lock cam pins towards one another.

Each lock cam pin may include a lock boss extending from a respective leg of the spring clip; and a cam surface configured for engagement by a feature of the adapter assembly to cause the lock cam pin to move outwardly as the release button from the extended condition to the depressed condition.

Each lock boss may be configured for receipt into the openings of the trocar housing to lock the trocar assembly into the outer tube.

The adapter assembly may further include a pair of camming surfaces respectively associated with the cam surface of each of the lock cam pins.

When the release button is moved from the extended condition to the depressed condition, the cam surfaces of the lock cam pins may engage respective camming surfaces of the adapter assembly to withdraw the pair of lock cam pins from the openings of the trocar housing to release the trocar assembly from the outer tube.

During movement of the release button from the extended condition to the depressed condition, the pair of legs of the spring clip may be splayed outwardly, whereby a spring bias is created in the spring clip.

The spring bias of the spring clip may urge the pair of legs towards one another to move the pair of lock cam pins towards one another.

The spring bias of the spring clip may urge the release button from the depressed condition to the extended condition.

The trocar assembly may further include a trocar member slidably disposed within a lumen of the trocar housing, wherein the trocar member and the trocar housing are keyed to one another to inhibit rotation relative to one another, wherein the trocar member includes a distal end defining a tip and a proximal end defining an internally threaded bore; and a drive screw having a threaded distal portion engaged with the threaded bore of the trocar member, and a proximal force receiving feature for receiving rotative forces from the electromechanical handle assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the present disclosure are described herein with reference to the accompanying drawings, wherein:

FIG. 1 is a perspective view of a handheld surgical device including a handle assembly, an adapter assembly, and a reload in accordance with an embodiment of the present disclosure;

FIG. 2 is a perspective view, with parts separated, of the handle assembly of FIG. 1;

FIG. 3 is a perspective view, with parts separated, of a motor assembly and a control assembly of a power handle of the handle assembly of FIG. 2;

FIG. 4 is a perspective view of the adapter assembly without the reload secured to a distal end thereof;

FIG. 5 is a cross-sectional view of the adapter assembly of FIG. 4, as taken through section line 5-5 of FIG. 4;

FIG. 6 is a cross-sectional view of the adapter assembly of FIG. 4, as taken through section line 6-6 of FIG. 4;

FIG. 7 is a perspective view of the adapter assembly, shown partially in phantom, illustrating a first force/rotation transmitting/converting assembly thereof;

FIG. 8 is a perspective view of the first force/rotation transmitting/converting assembly of FIG. 7;

FIG. 9 is a perspective view, with parts separated, of a trocar assembly of the first force/rotation transmitting/converting assembly of FIG. 7;

FIG. 10 is a perspective view, of a distal end portion of the first force/rotation transmitting/converting assembly of FIG. 7, illustrating a support block thereof, and a trocar lock assembly associated therewith;

FIG. 11 is a perspective view, of a distal end portion of the first force/rotation transmitting/converting assembly of FIG. 7, with the support block thereof shown in phantom;

FIG. 12 is a cross-sectional view as taken through 12-12 of FIG. 10;

FIG. 13 is a cross-sectional view as taken through 13-13 of FIG. 10;

FIG. 14 is a cross-sectional view as taken through 14-14 of FIG. 13;

FIG. 15 is an enlarged view of the indicated area of detail of FIG. 4;

FIG. 16 is a cross-sectional view as taken through 16-16 of FIG. 15;

FIG. 17 is a cross-sectional view as taken through 17-17 of FIG. 15;

FIG. 18 is a perspective view of a release button and a spring clip of FIG. 17 with a spring latch securing the spring clip to an inner surface of the release button;

FIG. 19 is a perspective view of the spring latch of FIG. 18;

FIG. 20 is a side view of the spring latch of FIG. 19;

FIG. 21 is a perspective view of the spring latch of FIG. 19 aligned with the inner surface of the release button of FIG. 18 before the spring latch is heat staked into the release button;

FIG. 22 is a perspective view, of a distal end portion of the first force/rotation transmitting/converting assembly of FIG. 7, illustrating the trocar lock assembly associated therewith in a depressed condition;

FIG. 23 is a perspective view, of a distal end portion of the first force/rotation transmitting/converting assembly of FIG. 7, illustrating the trocar lock assembly associated therewith in an undepressed condition;

FIG. 24 is a perspective view of a distal end of an adapter assembly, without the reload secured to a distal end thereof, illustrating a trocar lock assembly according to another embodiment of the present disclosure;

FIG. 25 is a top, plan view of the trocar lock assembly of FIG. 24, with an outer tube of the adapter assembly removed;

FIG. 26 is a top, plan view of the trocar lock assembly of FIG. 24, with an outer tube and a support block of the adapter assembly removed, illustrating the trocar lock assembly in a second locked position;

FIG. 27 is an enlarged view of the indicated area of detail of FIG. 26, illustrating the trocar lock assembly in a first unlocked position;

FIG. 28 is a perspective view, with parts separated, of a trocar lock assembly according to another embodiment of the present disclosure;

FIG. 29 is an enlarged perspective view of a rocker pin of the trocar lock assembly of FIG. 28;

FIG. 30 is a cross-sectional view of the trocar lock assembly of FIG. 28, as taken through 30-30 of FIG. 28, illustrating the trocar lock assembly in a first locked position;

FIG. 31 is a cross-sectional view of the trocar lock assembly of FIG. 28, as taken through 30-30 of FIG. 28, illustrating the trocar lock assembly in a second unlocked position;

FIG. 32 is a perspective view, with parts separated, of a trocar lock assembly according to yet another embodiment of the present disclosure;

FIG. 33 is an enlarged perspective view of a rocker pin of the trocar lock assembly of FIG. 32;

FIG. 34 is a cross-sectional view of the trocar lock assembly of FIG. 32, as taken through 34-34 of FIG. 32, illustrating the trocar lock assembly in a first locked position;

FIG. 35 is a cross-sectional view of the trocar lock assembly of FIG. 32, as taken through 34-34 of FIG. 32, illustrating the trocar lock assembly in a second unlocked position;

FIG. 36 is a perspective view, with parts separated, of a trocar lock assembly according to still another embodiment of the present disclosure;

FIG. 37 is a perspective view of the trocar lock assembly of FIG. 36, shown in a first locked position;

FIG. 38 is a front, elevational view of the trocar lock assembly of FIG. 36, shown in the first locked position of FIG. 37;

FIG. 39 is a front, elevational view of the trocar lock assembly of FIG. 36, shown in a second unlocked position;

FIG. 40 is a perspective view of the adapter assembly of FIG. 4, shown partially in phantom, illustrating a second force/rotation transmitting/converting assembly thereof; and

FIG. 41 is a perspective view of the adapter assembly of FIG. 4, shown partially in phantom, illustrating a third force/rotation transmitting/converting assembly thereof.

DETAILED DESCRIPTION OF EMBODIMENTS

Embodiments of the present disclosure are now described in detail with reference to the drawings, in which like reference numerals designate identical or corresponding elements in each of the several views. As used herein the term “proximal” refers to a portion of a surgical device, or component thereof, closer to the user, and the term “distal” refers to a portion of the surgical device, or component thereof, farther from the user.

Turning now to FIG. 1, a surgical device 10, in accordance with an embodiment of the present disclosure, is in the form of a powered handheld electromechanical instrument. The surgical device includes a handle assembly 100, an adapter assembly 200, a reload 400, and an anvil assembly 510. The handle assembly 100 is configured for selective connection with the adapter assembly 200 and, in turn, the adapter assembly 200 is configured for selective connection with the reload 400.

The handle assembly 100, the adapter assembly 200, and the reload 400 will only further be described to the extent necessary to disclose aspects of the present disclosure. For a detailed description of the structure and function of exemplary handle assemblies, adapter assemblies, and reloads, reference may be made to commonly owned U.S. Patent Application Publication No. 2016/0310134 and U.S. patent application Ser. No. 15/972,606, the entire content of each of which is incorporated herein by reference.

With reference now to FIG. 2, the handle assembly 100 includes a power handle 101 and an outer or shell housing 110 configured to selectively receive and encase the power handle 101. The shell housing 110 includes a proximal half-section 110a and a distal half-section 110b that are couplable together. The shell housing 110 includes a plurality of actuators 112 (e.g., finger-actuated control buttons, knobs, toggles, slides, interfaces, and the like) for activating various functions of the surgical device 10 (FIG. 1) upon application of a respective force thereto.

The distal half-section 110b of the shell housing 110 defines a connecting portion 114 (e.g., a recess) configured to accept or receive a corresponding drive coupling assembly 210 (FIG. 5) of the adapter assembly 200. A sterile barrier plate assembly 120 is selectively supported in the distal half-section 110b of the shell housing 110 behind the connection portion 114. The plate assembly 120 includes a plate 122 rotatably supporting three coupling shafts 124a, 124b, 124c, and having an electrical connector 126 supported thereon. The electrical connector 126 includes a chip and defines a plurality of contact paths each including an electrical conduit for extending an electrical connection across the plate 122. When the plate assembly 120 is disposed within the shell housing 110, distal ends of the coupling shafts 124a, 124b, 124c and the electrical connector 126 are disposed or situated within the connecting portion 114 of the shell housing 110 to electrically and/or mechanically engage respective corresponding features of the adapter assembly 200, as will be described in greater detail below.

The power handle 101 has an inner handle housing 111 including a proximal half section 111a and a distal half section 111b that are coupled together to house a power-pack core assembly 130 therein. The power-pack core assembly 130 is configured to control the various operations of the handle assembly 100 and thus, the surgical device 10.

The distal half section 111b of the inner handle housing 111 is configured and adapted to support a control plate 132 of the power-pack core assembly 130 such that the control plate 132 abuts the plate assembly 120 of the shell housing 110 when the power handle 101 is disposed within the shell housing 110. The distal half section 111b of the inner handle housing 111 also supports a plurality of actuator interfaces 116 that are in operative registration with the respective actuators 112 of the shell housing 110.

As shown in FIGS. 2 and 3, the power-pack core assembly 130 includes a battery circuit 140, a controller circuit board 142, and a rechargeable battery 144 configured to supply power to any of the electrical components of the handle assembly 100. The controller circuit board 142 includes a motor controller circuit board 142a, a main controller circuit board 142b, and a first ribbon cable 142c interconnecting the motor controller circuit board 142a and the main controller circuit board 142b. A display screen 134 is supported on the main controller circuit board 142b and visible through a clear or transparent window 113 provided in the proximal half-section 111a of the inner handle housing 111. A USB connector 136 (or other data connector) is also supported on the main controller circuit board 142b and is accessible through the control plate 132 of the power-pack core assembly 130.

The power-pack core assembly 130 further includes a first motor 152, a second motor 154, and a third motor 156 disposed between the motor controller circuit board 142a and the main controller circuit board 142b. Each of the first, second, and third motors 152, 154, 156 is electrically connected to the controller circuit board 142 and the battery 144, and controlled by a respective motor controller disposed on the motor controller circuit board 142a which, in turn, is coupled to a respective main controller disposed on the main controller circuit board 142b.

Each of the first, second, and third motors 152, 154, 156 is supported on a motor bracket 148 such that respective motor shaft 152a, 154a, 156a extending from the first, second, and third motors 152, 154, 156 are rotatably disposed within respective apertures of the motor bracket 148. The motor bracket 148 rotatably supports three rotatable drive connector sleeves 152b, 154b, 156b that are keyed to the respective motor shafts 152a, 154a, 156a of the first, second, and third motors 152, 154, 156. The drive connector sleeves 152b, 154b, 156b non-rotatably receive proximal ends of the respective coupling shafts 124a, 124b, 124c of the plate assembly 120 of the shell housing 110, when the power handle 101 is disposed within the shell housing 10, and are each spring biased away from the respective motors 152, 154, 156.

The motor bracket 148 also supports an electrical receptacle 149. The electrical receptacle 149 is in electrical connection with the main controller circuit board 142b by a second ribbon cable 142d. The electrical receptacle 149 defines a plurality of electrical slots for receiving respective electrical contacts or blades extending from the pass-through connector 126 of the plate assembly 120 of the shell housing 110.

Rotation of the motor shafts 152a, 154a, 156a by the respective first, second, and third motors 152, 154, 156 function to drive shafts and/or gear components of the adapter assembly 200 in order to perform the various operations of the handle assembly 100, as will be described in greater detail below.

In use, when the adapter assembly 200 is mated to the handle assembly 100, each of the coupling shafts 124a, 124b, 124c of the handle assembly 100 couples with a corresponding rotatable connector sleeve 218, 222, 220 (FIG. 6) of the adapter assembly 200. In this regard, the interface between corresponding coupling shafts 124a, 124b, 124c and connector sleeves 218, 222, 220 are keyed such that rotation of each of the coupling shafts 124a, 124b, 124c of the handle assembly 100 causes a corresponding rotation of the corresponding connector sleeve 218, 222, 220 of the adapter assembly 200.

The coupling shafts 124a, 124b, 124c of handle assembly 100 are configured to be independently rotated by the respective motor 152, 154, 156 such that rotational force(s) are selectively transferred from the motors 152, 154, 156 of the handle assembly 100 to the adapter assembly 200. The selective rotation of the coupling shaft(s) 124a, 124b, 124c of the handle assembly 100 allows the handle assembly 100 to selectively actuate different functions of the reload 400.

Turning now to FIG. 4, the adapter assembly 200 is configured to convert a rotation of the coupling shaft(s) 124a, 124b, 124c (FIG. 2) of the handle assembly 100 into axial translation useful for effecting various functions of the surgical device 10 (FIG. 1). The adapter assembly 200 includes an adapter or knob housing 202 and an outer tube 206 extending from a distal end of the knob housing 202. The knob housing 202 and the outer tube 206 are configured and dimensioned to house and support the components of the adapter assembly 200. The knob housing 202 includes a drive coupling assembly 210 which is configured and adapted to connect to the connecting portion 114 (FIG. 2) of the shell housing 110 of the handle assembly 100. The outer tube 206 includes a connector sleeve 290 fixedly supported at a distal end thereof. The connector sleeve 290 is configured to selectively secure the reload 400 (FIG. 1) to the adapter assembly 200.

As shown in FIGS. 4 and 5, the adapter assembly 200 includes a rotation assembly 230 configured to enable rotation of the adapter assembly 200 relative to the handle assembly 100. Specifically, the knob housing 202 and the outer tube 206 of the adapter assembly 200 are rotatable relative to the drive coupling assembly 210 of the adapter assembly 200. The rotation assembly 230 includes a lock button 232 operably supported on the knob housing 202 and configured for actuating the rotation assembly 230. When rotation assembly 230 is in an unlocked configuration, the knob housing 202 and the outer tube 206 are rotatable along a longitudinal axis “X” of the adapter assembly 200 relative to the drive coupling assembly 210. When rotation assembly 230 is in a locked configuration, the knob housing 202 and the outer tube 206 are rotationally secured relative to the drive coupling assembly 210.

The adapter assembly 200 further includes an attachment/detachment button 234 supported on the drive coupling assembly 210 of the adapter assembly 200. In use, when the adapter assembly 200 is connected to the shell housing 110 of the handle assembly 100, the attachment/detachment button 234 secures and retains the adapter assembly 200 and the handle assembly 100 with one another. When the attachment/detachment button 234 is depressed or actuated, the adapter assembly 200 and the handle assembly 100 may be disconnected from each other.

The adapter assembly 200 further includes a cavity 211 defined within the drive coupling assembly 210 that is configured to receive a pin connector assembly 320 (FIG. 22) of an electrical assembly 300 configured for establishing an electrical connection with and between the handle assembly 100, the adapter assembly 200, and the reload 400, as described in further detail below. The cavity 211 may include guiding ribs 211 configured to receive a printed circuit board 324 of the pin connector assembly 320.

As illustrated in FIG. 6, the drive coupling assembly 210 of the adapter assembly 200 rotatably supports first, second, and third connector sleeves 218, 220 and 222 therein, and an inner housing member 204 disposed within the knob housing 202 rotatably supports first, second, and third rotatable proximal drive shafts 212, 214, 216 therein. Each of the first, second, and third connector sleeves 218, 220, 222 is configured to mate with a respective coupling shaft 124a, 124c, 124b (FIG. 2) of the handle assembly 100. Each of the first, second, and third connector sleeves 218, 220, 222 is further configured to mate with a proximal end of the respective first, second, and third proximal drive shafts 212, 214, 216 of the adapter assembly 200 such that each of the first, second, and third proximal drive shafts 212, 214, 216 functions as a rotation receiving member to receive rotational forces from the respective coupling shafts 124a, 124c, 124b of the handle assembly 100.

The adapter assembly 200 includes first, second and third force/rotation transmitting/converting assemblies 240, 250, 260 disposed within the inner housing member 204 and the outer tube 206. Each of the force/rotation transmitting/converting assemblies 240, 250, 260 is configured and adapted to transmit or convert a rotation of the respective coupling shaft 124a, 124c, 124b of the handle assembly 100 into axial translation to effectuate operation of the reload 400 (FIG. 1), as will be described in greater detail below.

As shown in FIGS. 6 and 7, the first force/rotation transmitting/converting assembly 240 includes the first rotatable proximal drive shaft 212, as described above, a second rotatable proximal drive shaft 281, a rotatable distal drive shaft 282, and a coupling member 286. First force/rotation transmitting/converting assembly 240, as illustrated in FIGS. 7-17, further includes a trocar assembly 270 removably supported in a distal end of outer tube 206. Trocar assembly 270 includes a tubular outer housing 272, a trocar member 274 slidably disposed within tubular outer housing 272, and a drive screw 276 operably received within trocar member 274 for axially moving trocar member 274 relative to tubular housing 272. In particular, trocar member 274 includes a proximal end 274a having an inner threaded portion 273 which engages a threaded distal portion 276b of drive screw 276. Trocar member 274 further includes at least one longitudinally extending flat 274d formed in an outer surface thereof which mates with a corresponding flat 272b formed in tubular housing 272 thereby inhibiting rotation of trocar member 274 relative to tubular housing 272 as drive screw 276 is rotated. A distal end 274b of trocar member 274 is configured to selectively engage anvil assembly 510 (FIG. 1).

Tubular housing 272 of trocar assembly 270 is axially and rotationally fixed within outer tube 206 of adapter assembly 200. Tubular housing 272 defines a pair of radially opposed, and radially oriented openings 272a which are configured and dimensioned to cooperate with a pair of lock pins 275c of a trocar assembly release mechanism or trocar lock assembly 275 (see FIGS. 10-14 and 17) of adapter assembly 200. With continued reference to FIGS. 10-17, adapter assembly 200 includes a support block 292 fixedly disposed within outer tube 206. The pair of lock pins 275c extend through support block 292 and into tubular housing 272 of trocar assembly 270 to connect trocar assembly 270 to adapter assembly 200.

As illustrated in FIGS. 11-17, trocar assembly release mechanism 275 includes a release button 275a pivotally supported on a hinge guide 293 and in outer tube 206. Release button 275a is biased, via a spring 275d (see FIGS. 14, 22, and 23), to a locked/extended condition. Trocar assembly release mechanism 275 further includes a spring clip 275b having a backspan 1285b connected to release button 275a, and a pair of legs 1285a, extending from the backspan 1285b, that extend through support block 292 and transversely across trocar assembly 270. Each of the pair of legs 1285a of spring clip 275b extends through a respective lock pin 275c which is slidably disposed within a respective radial opening 272a of tubular housing 272 and radial opening 292a of support block 292. Each of the pair of legs 1285a of spring clip 275b defines a gooseneck along a length thereof such that a distal portion of each of the pair of legs 1285a of spring clip 275b is closer to one another as compared to a proximal portion of each of the pair of legs 1285a of spring clip 275b.

With reference to FIGS. 18-20, the backspan 1285b of the spring clip 275b is secured to the release button 275a by spring latch 1260. Specifically, the spring latch 1260 secures the backspan 1285b of the spring clip 275b in a groove 275e defined in an inner surface of the release button 275a.

The spring latch 1260 includes a planar latch body 1262, staking tabs 1264, and retention tabs 1266. The spring latch 1260 may be formed of a metal, e.g., stainless steel 17-4 H900. To form the spring latch 1260, a flat sheet of metal may be cut to the desired shape such that the staking tabs 1264 extend from opposite sides of the latch body 1262 and the retention tabs 1266 extend from an end of the latch body 1262. The staking tabs 1264 are bent downward to be substantially orthogonal to the body 1262. The retention tabs 1266 are bent in an opposite direction of the staking tabs 1264 to a goose neck configuration such that an inner surface 1266a of the retention tabs 1266 are arcuate towards a center of curvature C that is substantially aligned with an inner surface 1262a of the body 1262 as shown in FIG. 20. The center of curvature C may be disposed in a plane defined by the inner surface 1262a of the body 1262.

Referring to FIG. 21, with the spring latch 1260, staking tabs 1264, and the retention tabs 1266 bent, the spring latch 1260 is aligned with the inner surface of release button 275a with the retention tabs 1266 disposed over the groove 275e of the release button 275a with the backspan 1285b of the spring clip 275b disposed in the groove 275e of the release button 275a. The spring latch 1260 is then heated such that the staking tabs 1264 are above a melting point of the release button 275a. The release button 275a may be formed of a plastic or thermoplastic with a melting point well below a melting point of the spring latch 1260. The staking tabs 1264 of the spring latch 1260 are then driven into the inner surface of the release button 275a such that the staking tabs 1264 are heat staked into the inner surface of the release button 275a to fix the spring latch 1260 to the release button 275a such that the spring clip 275b is secured to the release button 275a and movable in two degrees-of-freedom relative to the release button 275a as shown in FIG. 18. The staking tabs 1264 are driven into the inner surface of the release button 275a until the body 1262 of the spring latch 1260 is in contact with and/or flush with the inner surface of the release button 275a. In some embodiments, the spring latch 1260 is fixed to the release button 275a without the backspan 285b of the spring clip 275b disposed in the groove 275e and with the backspan 285b being positioned in the groove 275e after the spring latch 1260 is fixed to the release button 275a.

In use, when release button 275a is depressed (e.g., in a radially inward direction, FIGS. 15-17), release button 275a moves spring clip 275b transversely relative to trocar assembly 270. As spring clip 275b is moved transversely relative to trocar assembly 270, the pair of legs 1285a of spring clip 275b translate through the pair of lock pins 275c such that a goose-neck in each leg 1285a acts to cam and urge the pair of lock pins 275c radially outward. Specifically, the pair of lock pins 275c are traversed by the gooseneck portions the pair of legs 1285a of spring clip 275b, transitioning from the distal portions thereof to the proximal portions thereof. In so moving, each of the pair of lock pins 275c is urged radially outward by a distance sufficient that each of the pair of lock pins 275c clears respective opening 272a of tubular housing 272, and in an embodiment, project from outer tube 206 or are flush with an outer surface of outer tube 206. It is contemplated that outer tube 206 may include openings 206a (see FIGS. 15 and 17) formed therein which are in registration with each of the pair of lock pins 275c. With the pair of lock pins 275c free and clear of tubular housing 272, trocar assembly 270 may be axially withdrawn from within the distal end of outer tube 206 of adapter assembly 200, or may be inserted into the distal end of outer tube 206 of adapter assembly 200.

Projection of the pair of lock pins 275c, radially outward from outer tube 206 (or to be substantially flush with an outer surface of the outer tube 206), provides a visual indication to the end user that no trocar assembly 270 is inserted into the distal end of outer tube 206 of adapter assembly 200, or that trocar assembly 270 is not properly inserted into the distal end of outer tube 206 of adapter assembly 200. When trocar assembly 270 is properly inserted into the distal end of outer tube 206 of adapter assembly 200, the pair of lock pins 275c of trocar assembly release mechanism 275 are in registration with, and enter into, a respective opening 272a of tubular housing 272 of trocar assembly 270 (see FIG. 23), to thereby lock trocar assembly 270 within the distal end of outer tube 206 of adapter assembly 200, and to thereby provide a visual indication to the end user that trocar assembly 270 is properly inserted into the distal end of outer tube 206 of adapter assembly 200.

Turning now to FIGS. 24-27, in an alternate embodiment, adapter assembly 200 may include a trocar assembly release mechanism or trocar lock assembly 1275. As illustrated, trocar assembly release mechanism 1275 includes a pair of release buttons 1275a rotatably supported on a support block (not shown) and in outer tube 206, via a respective pivot pin 1275e. Each release button 1275a is biased, via a respective biasing member 1275d (e.g., leaf spring), to a locked condition.

Each release button 1275a is identical to one another, and thus, only one of the pair of release buttons 1275a will be described in detail herein. Release button 1275a is substantially semi-circular, extending approximately 180° about pivot pin 1275e. Release button 1275a defines a distal face or surface 1275a′ against which a portion of biasing member 1275d engages to urge release button 1275a proximally, and a proximal face or surface projecting to a tail 1275a″. An outer surface of release button 1275a may include finger gripping features (e.g., ribs, knurling, etc.) formed thereon.

Release button 1275a is movable between a first unlocked position and a second locked position. If or when a trocar assembly 270 is not properly inserted into the distal end of outer tube 206 of adapter assembly 200, the release button 1275a is rotated or urged radially outward from outer tube 206 by trocar assembly 270, to the first unlocked position, thereby providing a visual indication to the end user that trocar assembly 270 is not properly inserted into the distal end of outer tube 206 of adapter assembly 200. When a trocar assembly 270 is properly inserted into the distal end of outer tube 206 of adapter assembly 200, the release button 1275a is rotated or urged radially inward, to the second locked position, by biasing member 1275d rotating release button 1275a such that tail 1275a″ thereof is received in a recess or depression formed in the outer surface of tubular housing 272 of trocar assembly 270 (e.g., similar to openings 272a of tubular housing 272). When release button 1275a is in the second locked position, a visual indication is provided to the end user that trocar assembly 270 is properly inserted and locked into the distal end of outer tube 206 of adapter assembly 200.

In an embodiment, with reference to FIG. 27, tail 1275a″ includes a chamfered distal surface to facilitate receipt or passage of trocar assembly 270 during connection of trocar assembly 270 to outer tube 206, when release button 1275a is in the second locked position. Tail 1275a″ further includes a substantially squared proximal surface to inhibit withdrawal or disconnection of trocar assembly 270 from outer tube 206 when release button 1275a is in the second locked position relative to tubular housing 272 of trocar assembly 270.

Turning now to FIGS. 28-31, a trocar assembly release mechanism or trocar lock assembly, according to a further embodiment of the present disclosure, is generally designated as 2275. Trocar assembly release mechanism 2275 includes a release button 275a pivotally supported on a hinge guide 293 (see FIGS. 12-17) and in outer tube 206. Release button 275a is biased, via a spring 275d (see FIGS. 14, 22, and 23), to a locked/extended condition.

Trocar assembly release mechanism 2275 further includes a spring clip 2285 having a backspan 2285b connected to release button 275a, and a pair of legs 2285a, extending from the backspan 2285b, that extend through support block 292 and transversely across trocar assembly 270 (see FIGS. 8 and 9). Each of the pair of legs 2285a of spring clip 2285 extends into contact with a respective lock rocker pin 2276. Specifically, each of the pair of legs 2285a of spring clip 2285 includes a free end 2285a′, having a curved profile, for engagement in a respective pocket 2276d defined in rocker pin 2276 (as described in greater detail below).

Trocar assembly release mechanism 2275 includes a pair of rocker pins 2276 pivotably supported within support block 292, and configured and dimensioned to selectively engage respective radially oriented openings 272a of tubular housing 272 of trocar assembly 270 (see FIGS. 8 and 9) to axially and rotationally fix tubular housing 272 within outer tube 206 of adapter assembly 200. Each rocker pin 2276 is identical to one another, and thus, only one of the pair of rocker pins 2276 will be described in detail herein.

With continued reference to FIGS. 28-31, rocker pin 2276 includes a body portion 2276a which defines a body plane, a boss 2276b connected to body portion 2276a which defines a pivot axis “P” extending orthogonal to the body plane, and a lock shaft 2276c connected to body portion 2276a which defines a lock axis “L” extending in and co-parallel with the body plane, and orthogonal to and radially spaced from the pivot axis “P”. Lock shaft 2276c has a substantially circular transverse cross-sectional profile including a chamfered distal annular face 2276c′ and a chiseled proximal face 2276c″. Chamfered distal annular face 2276c′ facilitates introduction of lock shaft 2276c into respective radially oriented opening 272a of tubular housing 272 of trocar assembly 270. It is contemplated that a plane defined by chiseled proximal face 2276c″ of lock shaft 2276c extends substantially towards or through pivot axis “P” of boss 2276b.

Rocker pin 2276 may include a pocket 2276d formed in body portion 2276a and being disposed proximal of lock shaft 2276c, and a location substantially opposite of boss 2276b. Pocket 2276d is configured and dimensioned to engage or receive free end 2285a′ of spring clip 2285.

In use, when release button 275a is depressed (e.g., in a radially inward direction, FIGS. 15-17 and 31), to the first unlocked position, release button 275a moves spring clip 2285 transversely relative to trocar assembly 270. As spring clip 2285 is moved transversely relative to trocar assembly 270, the free ends 2285a′ of the pair of legs 2285a of spring clip 2285 press on rocker pins 2276, via respective pockets 2276d, to urge the pair of rocker pins 2276, via a pivoting motion about bosses 2276b, radially outward. Specifically, lock shafts 2276c of rocker pins 2276 are caused to be withdrawn from within respective openings 272a of tubular housing 272 of trocar assembly 270. In so moving, as rocker pins 2276 rotate, and since the free ends 2285a′ of the pair of legs 2285a of spring clip 2285 are disposed within respective pockets 2276d, the pair of legs 2285a of spring clip 2285 are caused to be splayed outwardly, creating a spring bias therein. With the lock shafts 2276c of rocker pins 2276 free and clear of tubular housing 272, trocar assembly 270 may be axially withdrawn from within the distal end of outer tube 206 of adapter assembly 200, or may be inserted into the distal end of outer tube 206 of adapter assembly 200.

When trocar assembly 270 is properly inserted into the distal end of outer tube 206 of adapter assembly 200, the lock shafts 2276c of rocker pins 2276 of trocar assembly release mechanism 2275 are in registration with, and free to enter into, a respective opening 272a of tubular housing 272 of trocar assembly 270.

Due to the spring bias created in the pair of legs 2285a of spring clip 2285, when release button 275a is pressed, upon a release of release button 275a, to the second locked position, the pair of legs 2285a of spring clip 2285 urge the lock shafts 2276c of rocker pins 2276 radially inward towards one another, to enter respective openings 272a of tubular housing 272 of trocar assembly 270 (see FIG. 9), to thereby lock trocar assembly 270 within the distal end of outer tube 206 of adapter assembly 200.

Turning now to FIGS. 32-35, a trocar assembly release mechanism or trocar lock assembly, according to a further embodiment of the present disclosure, is generally designated as 3275. Trocar assembly release mechanism 3275 is substantially similar to trocar assembly release mechanism 2275, and thus, in the interest of efficiency, only the differences therebetween will be described in detail herein.

Trocar assembly release mechanism 3275 includes a spring clip 2285 having a pair of legs 2285a, extending from a backspan 2285b, that extend through support block 292 and transversely across trocar assembly 270 (see FIGS. 8 and 9). Each of the pair of legs 2285a of spring clip 2285 extends into contact with a respective lock rocker cam 3276. Specifically, each of the pair of legs 2285a of spring clip 2285 includes a free end 2285a′, having a curved profile, for engagement in a respective pocket 3276d defined in rocker cam 3276 (as described in greater detail below).

Trocar assembly release mechanism 3275 includes a pair of rocker cams 3276 pivotably supported within support block 292, and configured and dimensioned to selectively engage respective radially oriented openings 272a of tubular housing 272 of trocar assembly 270 (see FIGS. 8 and 9) to axially and rotationally fix tubular housing 272 within outer tube 206 of adapter assembly 200. Each rocker cam 3276 is identical to one another, and thus, only one of the pair of rocker cams 3276 will be described in detail herein.

With continued reference to FIGS. 32-35, rocker cam 3276 includes a body portion 3276a which defines a body plane. Body portion 3276a has a substantially tear-drop profile including an enlarged head portion 3276a′ and a narrowed tail portion 3276a″. Rocker cam 3276 further includes a boss 3276b projecting from body portion 3276a which defines a pivot axis “P” extending orthogonal to the body plane. Boss 3276b is located substantially mid-way between enlarged head portion 3276a′ and narrowed tail portion 3276a″ of body portion 3276a. Rocker cam 3276 includes a pocket 3276d formed in narrowed tail portion 3276a″ of body portion 3276a and being disposed proximal of boss 3276b. Pocket 3276d is configured and dimensioned to engage or receive free end 2285a′ of spring clip 2285.

In use, when release button 275a is depressed (e.g., in a radially inward direction, FIGS. 15-17 and 31), to the first unlocked position, release button 275a moves spring clip 2285 transversely relative to trocar assembly 270. As spring clip 2285 is moved transversely relative to trocar assembly 270, the free ends 2285a′ of the pair of legs 2285a of spring clip 2285 press on rocker cams 3276, via respective pockets 3276d, to urge the pair of rocker cams 3276, via a pivoting motion about bosses 3276b, radially outward. Specifically, enlarged head portion 3276a′ of rocker cams 3276 are caused to be withdrawn from within or rotated out of respective openings 272a of tubular housing 272 of trocar assembly 270. In so moving, as rocker cams 3276 rotate, and since the free ends 2285a′ of the pair of legs 2285a of spring clip 2285 are disposed within respective pockets 3276d, the pair of legs 2285a of spring clip 2285 are caused to be splayed outwardly, creating a spring bias therein. With the enlarged head portion 3276a′ of rocker cams 3276 free and clear of tubular housing 272, trocar assembly 270 may be axially withdrawn from within the distal end of outer tube 206 of adapter assembly 200, or may be inserted into the distal end of outer tube 206 of adapter assembly 200.

When trocar assembly 270 is properly inserted into the distal end of outer tube 206 of adapter assembly 200, the enlarged head portion 3276a′ of rocker cams 3276 of trocar assembly release mechanism 3275 are in registration with, and free to enter into, a respective opening 272a of tubular housing 272 of trocar assembly 270.

Due to the spring bias created in the pair of legs 2285a of spring clip 2285, when release button 275a is pressed, upon a release of release button 275a, to the second locked position, the pair of legs 2285a of spring clip 2285 urge the enlarged head portion 3276a′ of rocker cams 3276 radially inward towards one another, to enter respective openings 272a of tubular housing 272 of trocar assembly 270 (see FIG. 9), to thereby lock trocar assembly 270 within the distal end of outer tube 206 of adapter assembly 200.

Turning now to FIGS. 36-39, a trocar assembly release mechanism or trocar lock assembly, according to a further embodiment of the present disclosure, is generally designated as 4275. Trocar assembly release mechanism 4275 includes a release button 275a pivotally supported on a hinge guide 293 (see FIGS. 12-17) and in outer tube 206. Release button 275a is biased, via a spring 275d (see FIGS. 14, 22, and 23), to a locked/extended condition.

Trocar assembly release mechanism 4275 further includes a spring clip 4285 having a backspan 4285b connected to release button 275a, and a pair of legs 4285a, extending from the backspan 4285b, that extend through support block 292 and transversely across trocar assembly 270 (see FIGS. 8 and 9). Each of the pair of legs 4285a of spring clip 4285 supports a respective sliding lock cam pin 4276.

Each lock cam pin 4276 of trocar assembly release mechanism 4275 is slidably supported within support block 292, and configured and dimensioned to selectively engage respective radially oriented openings 272a of tubular housing 272 of trocar assembly 270 (see FIGS. 8 and 9) to axially and rotationally fix tubular housing 272 within outer tube 206 of adapter assembly 200. Each lock cam pin 4276 is identical to one another, and thus, only one of the pair of lock cam pins 4276 will be described in detail herein.

With continued reference to FIGS. 36-39, lock cam pin 4276 includes a body portion 4276a which defines a body plane, a lock boss, shaft or nose 4276b connected to body portion 4276a extending from body portion 4276a, and a cam surface 4276c formed in or projecting from the body plane of body portion 4276a, at a location between substantially between body portion 4276a and lock boss 4276b.

Lock boss 4276b has a substantially rectangular transverse cross-sectional profile including a chamfered distal face 4276b′. Chamfered distal face 4276b′ facilitates introduction of lock boss 4276b into respective radially oriented opening 272a of tubular housing 272 of trocar assembly 270.

As illustrated in FIGS. 36-39, support block 292 includes camming surfaces 292b formed therein and associated with respective lock cam pins 4276. Each camming surface 292b is configured to engage and act on cam surfaces 4276c of respective lock cam pins 4276.

As lock cam pins 4276 translate radially outward from one another, lock bosses 4276b of lock cam pins 4276 are caused to be withdrawn from within respective openings 272a of tubular housing 272 of trocar assembly 270. With lock cam pins 4276 of trocar assembly release mechanism 4275 free and clear of tubular housing 272, trocar assembly 270 may be axially withdrawn from within the distal end of outer tube 206 of adapter assembly 200, or may be inserted into the distal end of outer tube 206 of adapter assembly 200. Also, as lock cam pins 4276 translate radially outward from one another, the pair of legs 4285a of spring clip 4285 are caused to be splayed apart from one another, creating a spring bias therein.

When trocar assembly 270 is properly inserted into the distal end of outer tube 206 of adapter assembly 200, lock cam pins 4276 of trocar assembly release mechanism 4275 are in registration with, and/or free to enter into, a respective opening 272a of tubular housing 272 of trocar assembly 270.

Due to the spring bias created in the pair of legs 4285a of spring clip 4285, when release button 275a is pressed, upon a release of release button 275a, to the second locked position, the pair of legs 4285a of spring clip 4285 urge the lock cam pins 4276 of trocar assembly release mechanism 4275 radially inward towards one another, to enter respective openings 272a of tubular housing 272 of trocar assembly 270 (see FIG. 9), to thereby lock trocar assembly 270 within the distal end of outer tube 206 of adapter assembly 200.

With reference to FIGS. 1-9, in operation, the first force/rotation transmitting/converting assembly 240 functions to advance/retract trocar member 274 of trocar assembly 270 of the adapter assembly 200, and to open/close the reload 400 (FIG. 1) when an anvil assembly 510 is connected to the trocar member 274. Specifically, as the first rotatable proximal drive shaft 212 is rotated, due to a rotation of the first connector sleeve 218, as a result of the rotation of the first coupling shaft 124a (FIG. 2) of the handle assembly 100, the second rotatable proximal drive shaft 281 is caused to be rotated. Rotation of the second rotatable proximal drive shaft 281 results in contemporaneous rotation of the rotatable distal drive shaft 282. Rotation of the rotatable distal drive shaft 282 causes contemporaneous rotation of the coupling member 286, which, in turn, causes contemporaneous rotation of the drive screw 276 of the trocar assembly 270. As the drive screw 276 is rotated within and relative to the trocar member 274, engagement between the trocar member 274 and the drive screw 276 (e.g., threaded engagement) causes axial translation of the trocar member 274 within the tubular housing 272 of the trocar assembly 270. Specifically, rotation of the drive screw 276 in a first direction causes axial translation of the trocar member 274 in a first direction (e.g., extension or advancement of the trocar assembly 270), and rotation of the drive screw 276 in a second direction causes axial translation of the trocar member 274 in a second direction (e.g., retraction of the trocar assembly 270). When the anvil assembly 510 is connected to the trocar member 274, the axial translation of the trocar member 274 in the first direction results in an opening of the reload 400, and the axial translation of the trocar member 274 in the second direction results in a closing of the reload 400.

As shown in FIGS. 6 and 40, the second force/rotation transmitting/converting assembly 250 of adapter assembly 200 includes the second proximal drive shaft 214, as described above, a first coupling shaft 251, a planetary gear set 252, a staple lead screw 253, and a staple driver 254. The second force/rotation transmitting/converting assembly 250 of the adapter assembly 200 also includes an outer flexible band assembly 255 secured to the staple driver 254. The outer flexible band assembly 255 includes first and second flexible bands 255a, 255b laterally spaced and connected at proximal ends thereof to a support ring 255c and at distal ends thereof to a proximal end of a support base 255d. The outer flexible band assembly 255 further includes first and second connection extensions 255e, 255f extending proximally from the support ring 255c that are configured to operably connect the outer flexible band assembly 255 to the staple driver 254. The second force/rotation transmitting/converting assembly 250 functions to fire staples “S” (FIG. 13) of the reload 400 for formation against the anvil assembly 510.

In operation, as the second rotatable proximal drive shaft 214 is rotated due to a rotation of the second connector sleeve 220, as a result of the rotation of the second coupling shaft 124c (FIG. 2) of the handle assembly 100, the first coupling shaft 251 is caused to be rotated, which in turn causes the planetary gear set 252 to rotate. Rotation of the planetary gear set 252 causes contemporaneous rotation of the staple lead screw 253. As the staple lead screw 253 is rotated, the staple driver 254 is caused to be axially translated, which in turn causes the outer flexible band assembly 255 to be axially translated. As the outer flexible band assembly 255 is axially translated, the support base 255d presses against a driver adapter of a staple driver assembly (not shown) of the reload 400 to distally advance a driver and fire staples from a staple cartridge (not shown) of the reload 400 and against anvil assembly 510 for formation of the staples in underlying tissue.

With reference to FIGS. 6 and 41, the third force/rotation transmitting/converting assembly 260 of the adapter assembly 200 includes the third proximal drive shaft 216, as described above, a second coupling shaft 261, a hollow shaft 269, a planetary gear set 262, a knife lead screw 263, and a knife driver 264. The third force/rotation transmitting/converting assembly 260 of adapter assembly 200 also includes an inner flexible band assembly 265 secured to the knife driver 264. The inner flexible band assembly 265 includes first and second flexible bands 265a, 265b laterally spaced and connected at proximal ends thereof to a support ring 265c and at distal ends thereof to a proximal end of a support base 265d. The third force/rotation transmitting/converting assembly 260 functions to fire an annular knife 444 (FIG. 13) of the reload 400.

In operation, as the third rotatable proximal drive shaft 216 is rotated due to a rotation of the third connector sleeve 222, as a result of the rotation of the third coupling shaft 124b (FIG. 2) of the handle assembly 100, the second coupling shaft 261 is caused to be rotated, which in turn causes the hollow shaft 269 to rotate. Rotation of the hollow shaft 269 results in contemporaneous rotation of the planetary gear set 262, which in turn causes the knife lead screw 263 to rotate. As the knife lead screw 263 is rotated, the knife driver 264 is caused to be axially translated, which in turn causes the inner flexible band assembly 265 to be axially translated. As the inner flexible band assembly 265 is axially translated, the support base 265d presses against a knife carrier (not shown) of the reload 400 to distally advance the knife carrier and fire the an annular knife (not shown) of the reload 400 against the anvil assembly 510 for cutting of tissue clamped in the reload 400.

Persons skilled in the art will understand that the structures specifically described herein and shown in the accompanying figures are non-limiting exemplary embodiments and that the description, disclosure, and figures should be construed merely as exemplary of particular embodiments. It is to be understood, therefore, that the present disclosure is not limited to the precise embodiments described, and that various other changes and modifications may be effected by one skilled in the art without departing from the scope or spirit of the disclosure. For example, the electrical assemblies of the present disclosure may be configured for use with a plurality of different reloads via a plurality of respective adapter assemblies that are each configured for actuation and manipulation by a powered handle assembly and/or a robotic surgical system. Additionally, the elements and features shown or described in connection with certain embodiments may be combined with the elements and features of certain other embodiments without departing from the scope of the present disclosure, and that such modifications and variations are also included within the scope of the present disclosure. Accordingly, the subject matter of the present disclosure is not limited by what has been particularly shown and described.

Claims

1. An adapter assembly for connecting a surgical reload to an electromechanical handle assembly, the adapter assembly comprising: an outer tube;a trocar assembly releasably securable within a distal end of the outer tube, the trocar assembly including a trocar housing defining a pair of openings therein, wherein the pair of openings are in opposed radially extending relation to one another; anda trocar assembly release mechanism configured to releasably secure the trocar assembly within the outer tube, the release mechanism including: a release button supported in the outer tube and movable between an extended condition and a depressed condition;a spring clip slidably supported in the outer tube and connected to the release button, the spring clip including: a backspan connected to the release button; anda pair of legs extending from the backspan; anda pair of lock cam pins supported within the outer tube, wherein each lock cam pin is secured to a respective leg of the spring clip, and wherein each lock cam pin is selectively receivable within a respective opening of the pair of openings formed in the trocar housing;wherein, when the release button is moved from the extended condition to the depressed condition, the spring clip acts on the pair of lock cam pins to withdraw the pair of lock cam pins from the openings of the trocar housing to release the trocar assembly from the outer tube, andwherein, when the release button is moved from the depressed condition to the extended condition, the spring clip acts on the pair of lock cam pins to urge the pair of lock cam pins into the openings of the trocar housing to lock the trocar assembly into the outer tube.
2. The adapter assembly of claim 1, wherein the trocar assembly release mechanism further comprises a biasing member supported within the outer tube and acting on the release button to urge the release button to the extended condition.
3. The adapter assembly of claim 1, wherein each lock cam pin includes: a lock boss extending from a respective leg of the spring clip; anda cam surface configured for engagement by a feature of the adapter assembly to cause the lock cam pin to move outwardly as the release button from the extended condition to the depressed condition.
4. The adapter assembly of claim 3, wherein each lock boss is configured for receipt into the openings of the trocar housing to lock the trocar assembly into the outer tube.
5. The adapter assembly of claim 1, wherein the trocar assembly further includes: a trocar member slidably disposed within a lumen of the trocar housing, wherein the trocar member and the trocar housing are keyed to one another to inhibit rotation relative to one another, wherein the trocar member includes a distal end defining a tip and a proximal end defining an internally threaded bore; anda drive screw having a threaded distal portion engaged with the threaded bore of the trocar member, and a proximal force receiving feature for receiving rotative forces from the electromechanical handle assembly.
6. The adapter assembly of claim 1, wherein, when the release button is moved from the extended condition to the depressed condition, the cam surfaces of the pair of lock cam pins engage respective camming surfaces of the adapter assembly to withdraw the pair of lock cam pins from the openings of the trocar housing to release the trocar assembly from the outer tube.
7. The adapter assembly of claim 6, wherein, during movement of the release button from the extended condition to the depressed condition, the pair of legs of the spring clip are splayed outwardly, whereby a spring bias is created in the spring clip.
8. The adapter assembly of claim 7, wherein the spring bias of the spring clip urges the pair of legs towards one another to move the pair of lock cam pins towards one another.
9. The adapter assembly of claim 7, wherein the spring bias of the spring clip urges the release button from the depressed condition to the extended condition.
10. An adapter assembly for connecting a surgical reload to an electromechanical handle assembly, the adapter assembly comprising: an outer tube;a trocar assembly releasably securable within a distal end of the outer tube, the trocar assembly including a trocar housing defining a pair of openings therein, wherein the pair of openings are in opposed radially extending relation to one another; anda trocar assembly release mechanism configured to releasably secure the trocar assembly within the outer tube, the release mechanism including: a release button supported in the outer tube and movable between an extended condition and a depressed condition;a spring clip slidably supported in the outer tube and connected to the release button, wherein the spring clip of the trocar assembly release mechanism creates a spring bias when the release button is moved from the extended condition to the depressed condition, the spring clip including: a backspan connected to the release button; anda pair of legs extending from the backspan; anda pair of lock cam pins supported within the outer tube, wherein each lock cam pin is secured to a respective leg of the spring clip, and wherein each lock cam pin is selectively receivable within a respective opening of the pair of openings formed in the trocar housing;wherein, when the release button is moved from the extended condition to the depressed condition, the spring clip acts on the pair of lock cam pins to withdraw the pair of lock cam pins from the openings of the trocar housing to release the trocar assembly from the outer tube.
11. The adapter assembly of claim 10, wherein movement of the release button from the extended condition to the depressed condition causes the pair of legs of the spring clip to splay outwardly.
12. The adapter assembly of claim 11, wherein when the release button is in the extended condition, the pair of legs of the spring clip biases the pair of lock cam pins towards one another.
13. The adapter assembly of claim 10, wherein the trocar assembly release mechanism further comprises a biasing member supported within the outer tube and acting on the release button to urge the release button to the extended condition.
14. The adapter assembly of claim 10, wherein the trocar assembly further includes: a trocar member slidably disposed within a lumen of the trocar housing, wherein the trocar member and the trocar housing are keyed to one another to inhibit rotation relative to one another, wherein the trocar member includes a distal end defining a tip and a proximal end defining an internally threaded bore; anda drive screw having a threaded distal portion engaged with the threaded bore of the trocar member, and a proximal force receiving feature for receiving rotative forces from the electromechanical handle assembly.
15. An adapter assembly for connecting a surgical reload to an electromechanical handle assembly, the adapter assembly comprising: an outer tube;a trocar assembly releasably securable within a distal end of the outer tube, the trocar assembly including a trocar housing defining a pair of openings therein, wherein the pair of openings are in opposed radially extending relation to one another; anda trocar assembly release mechanism configured to releasably secure the trocar assembly within the outer tube, the release mechanism including: a release button supported in the outer tube and movable between an extended condition and a depressed condition;a spring clip slidably supported in the outer tube and connected to the release button, the spring clip including: a backspan connected to the release button; anda pair of legs extending from the backspan; anda pair of lock cam pins supported within the outer tube, wherein each lock cam pin is secured to a respective leg of the spring clip, and wherein each lock cam pin is selectively receivable within a respective opening of the pair of openings formed in the trocar housing, wherein each lock cam pin includes: a lock boss extending from a respective leg of the spring clip; anda cam surface configured for engagement by a feature of the adapter assembly to cause the lock cam pins to move outwardly as the release button moves from the extended condition to the depressed condition, wherein each cam surface is defined by a pair of camming surfaces respectively associated with the cam surface of each of the lock cam pins,wherein, when the release button is moved from the extended condition to the depressed condition, the spring clip acts on the pair of lock cam pins to withdraw the pair of lock cam pins from the openings of the trocar housing to release the trocar assembly from the outer tube.
16. The adapter assembly of claim 15, wherein, when the release button is moved from the extended condition to the depressed condition, the cam surfaces of the lock cam pins engage respective camming surfaces of the adapter assembly to withdraw the pair of lock cam pins from the openings of the trocar housing to release the trocar assembly from the outer tube.
17. The adapter assembly of claim 16, wherein, during movement of the release button from the extended condition to the depressed condition, the pair of legs of the spring clip are splayed outwardly, whereby a spring bias is created in the spring clip.
18. The adapter assembly of claim 17, wherein the spring bias of the spring clip urges the pair of legs towards one another to move the pair of lock cam pins towards one another.
19. The adapter assembly of claim 17, wherein the spring bias of the spring clip urges the release button from the depressed condition to the extended condition.
20. The adapter assembly of claim 15, wherein the trocar assembly release mechanism further comprises a biasing member supported within the outer tube and acting on the release button to urge the release button to the extended condition.
21. The adapter assembly of claim 15, wherein the trocar assembly further includes: a trocar member slidably disposed within a lumen of the trocar housing, wherein the trocar member and the trocar housing are keyed to one another to inhibit rotation relative to one another, wherein the trocar member includes a distal end defining a tip and a proximal end defining an internally threaded bore; anda drive screw having a threaded distal portion engaged with the threaded bore of the trocar member, and a proximal force receiving feature for receiving rotative forces from the electromechanical handle assembly.
22. The adapter assembly of claim 15, wherein the trocar assembly release mechanism further comprises a biasing member supported within the outer tube and acting on the release button to urge the release button to the extended condition.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims the benefit of and priority to U.S. Provisional Patent Application Ser. No. 62/836,905, filed on Apr. 22, 2019, the entire content of which being hereby incorporated by reference. The present application is also a Continuation-in-Part Application which claims the benefit of and priority to U.S. patent application Ser. No. 15/972,606, filed on May 7, 2018, the entire content of which being hereby incorporated by reference.

US Referenced Citations (467)

Number	Name	Date	Kind
2957353	Babacz	Oct 1960	A
3111328	Di Rito et al.	Nov 1963	A
3695058	Keith, Jr.	Oct 1972	A
3734515	Dudek	May 1973	A
3759336	Marcovitz et al.	Sep 1973	A
4162399	Hudson	Jul 1979	A
4606343	Conta et al.	Aug 1986	A
4705038	Sjostrom et al.	Nov 1987	A
4722685	de Estrada et al.	Feb 1988	A
4823807	Russell et al.	Apr 1989	A
4874181	Hsu	Oct 1989	A
5129118	Walmesley	Jul 1992	A
5129570	Schulze et al.	Jul 1992	A
5152744	Krause et al.	Oct 1992	A
5301061	Nakada et al.	Apr 1994	A
5312023	Green et al.	May 1994	A
5326013	Green et al.	Jul 1994	A
5350355	Sklar	Sep 1994	A
5383874	Jackson et al.	Jan 1995	A
5383880	Hooven	Jan 1995	A
5389098	Tsuruta et al.	Feb 1995	A
5395033	Byrne et al.	Mar 1995	A
5400267	Denen et al.	Mar 1995	A
5411508	Bessler et al.	May 1995	A
5413267	Solyntjes et al.	May 1995	A
5427087	Ito et al.	Jun 1995	A
5433721	Hooven et al.	Jul 1995	A
5467911	Tsuruta et al.	Nov 1995	A
5476379	Disel	Dec 1995	A
5487499	Sorrentino et al.	Jan 1996	A
5518163	Hooven	May 1996	A
5518164	Hooven	May 1996	A
5526822	Burbank et al.	Jun 1996	A
5529235	Boiarski et al.	Jun 1996	A
5535934	Boiarski et al.	Jul 1996	A
5535937	Boiarski et al.	Jul 1996	A
5540375	Bolanos et al.	Jul 1996	A
5540706	Aust et al.	Jul 1996	A
5542594	McKean et al.	Aug 1996	A
5549637	Crainich	Aug 1996	A
5553675	Pitzen et al.	Sep 1996	A
5562239	Boiarski et al.	Oct 1996	A
5564615	Bishop et al.	Oct 1996	A
5567047	Fritsch	Oct 1996	A
5609560	Ichikawa et al.	Mar 1997	A
5626587	Bishop et al.	May 1997	A
5632432	Schulze et al.	May 1997	A
5645209	Green et al.	Jul 1997	A
5647526	Green et al.	Jul 1997	A
5653374	Young et al.	Aug 1997	A
5658300	Bito et al.	Aug 1997	A
5662662	Bishop et al.	Sep 1997	A
5667517	Hooven	Sep 1997	A
5693042	Boiarski et al.	Dec 1997	A
5704534	Huitema et al.	Jan 1998	A
5713505	Huitema	Feb 1998	A
5762603	Thompson	Jun 1998	A
5779130	Alesi et al.	Jul 1998	A
5782396	Mastri et al.	Jul 1998	A
5782397	Koukline	Jul 1998	A
5792573	Pitzen et al.	Aug 1998	A
5797536	Smith et al.	Aug 1998	A
5820009	Melling et al.	Oct 1998	A
5863159	Lasko	Jan 1999	A
5865361	Milliman et al.	Feb 1999	A
5908427	McKean et al.	Jun 1999	A
5954259	Viola et al.	Sep 1999	A
5964774	McKean et al.	Oct 1999	A
5993454	Longo	Nov 1999	A
6010054	Johnson et al.	Jan 2000	A
6017354	Culp et al.	Jan 2000	A
6032849	Mastri et al.	Mar 2000	A
6045560	McKean et al.	Apr 2000	A
6090123	Culp et al.	Jul 2000	A
6126651	Mayer	Oct 2000	A
6129547	Cise et al.	Oct 2000	A
6165169	Panescu et al.	Dec 2000	A
6239732	Cusey	May 2001	B1
6241139	Milliman et al.	Jun 2001	B1
6264086	McGuckin, Jr.	Jul 2001	B1
6264087	Whitman	Jul 2001	B1
6302311	Adams et al.	Oct 2001	B1
6315184	Whitman	Nov 2001	B1
6321855	Barnes	Nov 2001	B1
6329778	Culp et al.	Dec 2001	B1
6343731	Adams et al.	Feb 2002	B1
6348061	Whitman	Feb 2002	B1
6368324	Dinger et al.	Apr 2002	B1
6371909	Hoeg et al.	Apr 2002	B1
6434507	Clayton et al.	Aug 2002	B1
6443973	Whitman	Sep 2002	B1
6461372	Jensen et al.	Oct 2002	B1
6488197	Whitman	Dec 2002	B1
6491201	Whitman	Dec 2002	B1
6533157	Whitman	Mar 2003	B1
6537280	Dinger et al.	Mar 2003	B2
6610066	Dinger et al.	Aug 2003	B2
6611793	Burnside et al.	Aug 2003	B1
6645218	Cassidy et al.	Nov 2003	B1
6654999	Stoddard et al.	Dec 2003	B2
6698643	Whitman	Mar 2004	B2
6699177	Wang et al.	Mar 2004	B1
6716233	Whitman	Apr 2004	B1
6743240	Smith et al.	Jun 2004	B2
6783533	Green et al.	Aug 2004	B2
6792390	Burnside et al.	Sep 2004	B1
6793652	Whitman et al.	Sep 2004	B1
6817508	Racenet et al.	Nov 2004	B1
6830174	Hillstead et al.	Dec 2004	B2
6846308	Whitman et al.	Jan 2005	B2
6846309	Whitman et al.	Jan 2005	B2
6849071	Whitman et al.	Feb 2005	B2
6860892	Tanaka et al.	Mar 2005	B1
6899538	Matoba	May 2005	B2
6905057	Swayze et al.	Jun 2005	B2
6959852	Shelton, IV et al.	Nov 2005	B2
6964363	Wales et al.	Nov 2005	B2
6981628	Wales	Jan 2006	B2
6981941	Whitman et al.	Jan 2006	B2
6986451	Mastri et al.	Jan 2006	B1
6988649	Shelton, IV et al.	Jan 2006	B2
7032798	Whitman et al.	Apr 2006	B2
RE39152	Aust et al.	Jun 2006	E
7055731	Shelton, IV et al.	Jun 2006	B2
7059508	Shelton, IV et al.	Jun 2006	B2
7077856	Whitman	Jul 2006	B2
7111769	Wales et al.	Sep 2006	B2
7122029	Koop et al.	Oct 2006	B2
7140528	Shelton, IV	Nov 2006	B2
7141049	Stern et al.	Nov 2006	B2
7143923	Shelton, IV et al.	Dec 2006	B2
7143925	Shelton, IV et al.	Dec 2006	B2
7143926	Shelton, IV et al.	Dec 2006	B2
7147138	Shelton, IV	Dec 2006	B2
7172104	Scirica et al.	Feb 2007	B2
7225964	Mastri et al.	Jun 2007	B2
7238021	Johnson	Jul 2007	B1
7246734	Shelton, IV	Jul 2007	B2
7252660	Kunz	Aug 2007	B2
7328828	Ortiz et al.	Feb 2008	B2
7364061	Swayze et al.	Apr 2008	B2
7380695	Doll et al.	Jun 2008	B2
7380696	Shelton, IV et al.	Jun 2008	B2
7404508	Smith et al.	Jul 2008	B2
7407078	Shelton, IV et al.	Aug 2008	B2
7416101	Shelton, IV et al.	Aug 2008	B2
7419080	Smith et al.	Sep 2008	B2
7422139	Shelton, IV et al.	Sep 2008	B2
7431189	Shelton, IV et al.	Oct 2008	B2
7441684	Shelton, IV et al.	Oct 2008	B2
7448525	Shelton, IV et al.	Nov 2008	B2
7464846	Shelton, IV et al.	Dec 2008	B2
7464847	Viola et al.	Dec 2008	B2
7464849	Shelton, IV et al.	Dec 2008	B2
7481347	Roy	Jan 2009	B2
7481824	Boudreaux et al.	Jan 2009	B2
7487899	Shelton, IV et al.	Feb 2009	B2
7549564	Boudreaux	Jun 2009	B2
7565993	Milliman et al.	Jul 2009	B2
7568603	Shelton, IV et al.	Aug 2009	B2
7575144	Ortiz et al.	Aug 2009	B2
7588175	Timm et al.	Sep 2009	B2
7588176	Timm et al.	Sep 2009	B2
7637409	Marczyk	Dec 2009	B2
7641093	Doll et al.	Jan 2010	B2
7644848	Swayze et al.	Jan 2010	B2
7670334	Hueil et al.	Mar 2010	B2
7673780	Shelton, IV et al.	Mar 2010	B2
7699835	Lee et al.	Apr 2010	B2
7721931	Shelton, IV et al.	May 2010	B2
7738971	Swayze et al.	Jun 2010	B2
7740159	Shelton, IV et al.	Jun 2010	B2
7743960	Whitman et al.	Jun 2010	B2
7758613	Whitman	Jul 2010	B2
7766210	Shelton, IV et al.	Aug 2010	B2
7770773	Whitman et al.	Aug 2010	B2
7770775	Shelton, IV et al.	Aug 2010	B2
7793812	Moore et al.	Sep 2010	B2
7799039	Shelton, IV et al.	Sep 2010	B2
7802712	Milliman et al.	Sep 2010	B2
7803151	Whitman	Sep 2010	B2
7822458	Webster, III et al.	Oct 2010	B2
7845534	Viola et al.	Dec 2010	B2
7845537	Shelton, IV et al.	Dec 2010	B2
7857185	Swayze et al.	Dec 2010	B2
7870989	Viola et al.	Jan 2011	B2
7900805	Shelton, IV et al.	Mar 2011	B2
7905897	Whitman et al.	Mar 2011	B2
7918230	Whitman et al.	Apr 2011	B2
7922061	Shelton, IV et al.	Apr 2011	B2
7922719	Ralph et al.	Apr 2011	B2
7947034	Whitman	May 2011	B2
7951071	Whitman et al.	May 2011	B2
7954682	Giordano et al.	Jun 2011	B2
7959051	Smith et al.	Jun 2011	B2
7963433	Whitman et al.	Jun 2011	B2
7967178	Scirica et al.	Jun 2011	B2
7967179	Olson et al.	Jun 2011	B2
7992758	Whitman et al.	Aug 2011	B2
8011550	Aranyi et al.	Sep 2011	B2
8016178	Olson et al.	Sep 2011	B2
8016855	Whitman et al.	Sep 2011	B2
8020743	Shelton, IV	Sep 2011	B2
8025199	Whitman et al.	Sep 2011	B2
8035487	Malackowski	Oct 2011	B2
8052024	Viola et al.	Nov 2011	B2
8056787	Boudreaux et al.	Nov 2011	B2
8114118	Knodel et al.	Feb 2012	B2
8127975	Olson et al.	Mar 2012	B2
8132705	Viola et al.	Mar 2012	B2
8136712	Zingman	Mar 2012	B2
8152516	Harvey et al.	Apr 2012	B2
8157150	Viola et al.	Apr 2012	B2
8157151	Ingmanson et al.	Apr 2012	B2
8182494	Yencho et al.	May 2012	B1
8186555	Shelton, IV et al.	May 2012	B2
8186587	Zmood et al.	May 2012	B2
8220367	Hsu	Jul 2012	B2
8235273	Olson et al.	Aug 2012	B2
8241322	Whitman et al.	Aug 2012	B2
8272554	Whitman et al.	Sep 2012	B2
8292150	Bryant	Oct 2012	B2
8292888	Whitman	Oct 2012	B2
8303581	Arts et al.	Nov 2012	B2
8342379	Whitman et al.	Jan 2013	B2
8348130	Shah et al.	Jan 2013	B2
8348855	Hillely et al.	Jan 2013	B2
8353440	Whitman et al.	Jan 2013	B2
8357144	Whitman et al.	Jan 2013	B2
8365633	Simaan et al.	Feb 2013	B2
8365972	Aranyi et al.	Feb 2013	B2
8371492	Aranyi et al.	Feb 2013	B2
8372057	Cude et al.	Feb 2013	B2
8391957	Carlson et al.	Mar 2013	B2
8403926	Nobis et al.	Mar 2013	B2
8403949	Palmer et al.	Mar 2013	B2
8418904	Wenchell et al.	Apr 2013	B2
8424739	Racenet et al.	Apr 2013	B2
8454585	Whitman	Jun 2013	B2
8505802	Viola et al.	Aug 2013	B2
8517241	Nicholas et al.	Aug 2013	B2
8523043	Ullrich et al.	Sep 2013	B2
8551076	Duval et al.	Oct 2013	B2
8561871	Rajappa et al.	Oct 2013	B2
8561874	Scirica	Oct 2013	B2
8602287	Yates et al.	Dec 2013	B2
8623000	Humayun et al.	Jan 2014	B2
8627995	Smith et al.	Jan 2014	B2
8632463	Drinan et al.	Jan 2014	B2
8636766	Milliman et al.	Jan 2014	B2
8647258	Aranyi et al.	Feb 2014	B2
8652121	Quick et al.	Feb 2014	B2
8657174	Yates et al.	Feb 2014	B2
8657177	Scirica et al.	Feb 2014	B2
8672206	Aranyi et al.	Mar 2014	B2
8696552	Whitman	Apr 2014	B2
8708213	Shelton, IV et al.	Apr 2014	B2
8715306	Faller et al.	May 2014	B2
8752749	Moore et al.	Jun 2014	B2
8758391	Swayze et al.	Jun 2014	B2
8806973	Ross	Aug 2014	B2
8808311	Heinrich et al.	Aug 2014	B2
8820605	Shelton, IV	Sep 2014	B2
8851355	Aranyi et al.	Oct 2014	B2
8858571	Shelton, IV et al.	Oct 2014	B2
8875972	Weisenburgh, II et al.	Nov 2014	B2
8888762	Whitman	Nov 2014	B2
8893946	Boudreaux et al.	Nov 2014	B2
8899462	Kostrzewski et al.	Dec 2014	B2
8905289	Patel et al.	Dec 2014	B2
8919630	Milliman	Dec 2014	B2
8931680	Milliman	Jan 2015	B2
8939344	Olson et al.	Jan 2015	B2
8950646	Viola	Feb 2015	B2
8960519	Whitman et al.	Feb 2015	B2
8961396	Azarbarzin et al.	Feb 2015	B2
8967443	McCuen	Mar 2015	B2
8968276	Zemlok et al.	Mar 2015	B2
8968337	Whitfield et al.	Mar 2015	B2
8992422	Spivey et al.	Mar 2015	B2
9016545	Aranyi et al.	Apr 2015	B2
9023014	Chowaniec et al.	May 2015	B2
9033868	Whitman et al.	May 2015	B2
9055943	Zemlok et al.	Jun 2015	B2
9064653	Prest et al.	Jun 2015	B2
9072515	Hall et al.	Jul 2015	B2
9113847	Whitman et al.	Aug 2015	B2
9113875	Viola et al.	Aug 2015	B2
9113876	Zemlok et al.	Aug 2015	B2
9113899	Garrison et al.	Aug 2015	B2
9216013	Scirica et al.	Dec 2015	B2
9241712	Zemlok et al.	Jan 2016	B2
9282961	Whitman et al.	Mar 2016	B2
9282963	Bryant	Mar 2016	B2
9295522	Kostrzewski	Mar 2016	B2
9307986	Hall et al.	Apr 2016	B2
9392910	Brenna	Jul 2016	B2
20010031975	Whitman et al.	Oct 2001	A1
20020049454	Whitman et al.	Apr 2002	A1
20020165541	Whitman	Nov 2002	A1
20030038938	Jung et al.	Feb 2003	A1
20030165794	Matoba	Sep 2003	A1
20040034369	Sauer et al.	Feb 2004	A1
20040111012	Whitman	Jun 2004	A1
20040133189	Sakurai	Jul 2004	A1
20040153124	Whitman	Aug 2004	A1
20040176751	Weitzner et al.	Sep 2004	A1
20040193146	Lee et al.	Sep 2004	A1
20050116009	Milliman	Jun 2005	A1
20050125027	Knodel et al.	Jun 2005	A1
20050131442	Yachia et al.	Jun 2005	A1
20060142656	Malackowski et al.	Jun 2006	A1
20060142740	Sherman et al.	Jun 2006	A1
20060142744	Boutoussov	Jun 2006	A1
20060259073	Miyamoto et al.	Nov 2006	A1
20060278680	Viola et al.	Dec 2006	A1
20060284730	Schmid et al.	Dec 2006	A1
20070023476	Whitman et al.	Feb 2007	A1
20070023477	Whitman et al.	Feb 2007	A1
20070027469	Smith et al.	Feb 2007	A1
20070029363	Popov	Feb 2007	A1
20070084897	Shelton et al.	Apr 2007	A1
20070102472	Shelton	May 2007	A1
20070152014	Gillum et al.	Jul 2007	A1
20070175947	Ortiz et al.	Aug 2007	A1
20070175949	Shelton et al.	Aug 2007	A1
20070175950	Shelton et al.	Aug 2007	A1
20070175951	Shelton et al.	Aug 2007	A1
20070175955	Shelton et al.	Aug 2007	A1
20070270784	Smith et al.	Nov 2007	A1
20080029570	Shelton et al.	Feb 2008	A1
20080029573	Shelton et al.	Feb 2008	A1
20080029574	Shelton et al.	Feb 2008	A1
20080029575	Shelton et al.	Feb 2008	A1
20080058801	Taylor et al.	Mar 2008	A1
20080109012	Falco et al.	May 2008	A1
20080110958	McKenna et al.	May 2008	A1
20080147089	Loh et al.	Jun 2008	A1
20080167736	Swayze et al.	Jul 2008	A1
20080185419	Smith et al.	Aug 2008	A1
20080188841	Tomasello et al.	Aug 2008	A1
20080197167	Viola et al.	Aug 2008	A1
20080208195	Shores et al.	Aug 2008	A1
20080237296	Boudreaux et al.	Oct 2008	A1
20080251561	Eades et al.	Oct 2008	A1
20080255413	Zemlok et al.	Oct 2008	A1
20080255607	Zemlok	Oct 2008	A1
20080262654	Omori et al.	Oct 2008	A1
20080308603	Shelton et al.	Dec 2008	A1
20090012533	Barbagli	Jan 2009	A1
20090090763	Zemlok et al.	Apr 2009	A1
20090099876	Whitman	Apr 2009	A1
20090138006	Bales et al.	May 2009	A1
20090171147	Lee et al.	Jul 2009	A1
20090182193	Whitman et al.	Jul 2009	A1
20090209946	Swayze et al.	Aug 2009	A1
20090209990	Yates et al.	Aug 2009	A1
20090254094	Knapp et al.	Oct 2009	A1
20090299141	Downey et al.	Dec 2009	A1
20100023022	Zeiner et al.	Jan 2010	A1
20100069942	Shelton, IV	Mar 2010	A1
20100193568	Scheib et al.	Aug 2010	A1
20100211053	Ross et al.	Aug 2010	A1
20100225073	Porter et al.	Sep 2010	A1
20110006101	Hall et al.	Jan 2011	A1
20110017801	Zemlok et al.	Jan 2011	A1
20110071508	Duval et al.	Mar 2011	A1
20110077673	Grubac et al.	Mar 2011	A1
20110121049	Malinouskas et al.	May 2011	A1
20110125138	Malinouskas et al.	May 2011	A1
20110139851	McCuen	Jun 2011	A1
20110155783	Rajappa et al.	Jun 2011	A1
20110155786	Shelton, IV	Jun 2011	A1
20110172648	Jeong	Jul 2011	A1
20110174009	Iizuka et al.	Jul 2011	A1
20110174099	Ross et al.	Jul 2011	A1
20110184245	Xia et al.	Jul 2011	A1
20110204119	McCuen	Aug 2011	A1
20110218522	Whitman	Sep 2011	A1
20110276057	Conlon et al.	Nov 2011	A1
20110290854	Timm et al.	Dec 2011	A1
20110295242	Spivey et al.	Dec 2011	A1
20110295269	Swensgard et al.	Dec 2011	A1
20120000962	Racenet et al.	Jan 2012	A1
20120074199	Olson et al.	Mar 2012	A1
20120089131	Zemlok et al.	Apr 2012	A1
20120104071	Bryant	May 2012	A1
20120116368	Viola	May 2012	A1
20120143002	Aranyi et al.	Jun 2012	A1
20120172924	Allen, IV	Jul 2012	A1
20120211542	Racenet	Aug 2012	A1
20120223121	Viola et al.	Sep 2012	A1
20120245428	Smith et al.	Sep 2012	A1
20120253329	Zemlok et al.	Oct 2012	A1
20120310220	Malkowski et al.	Dec 2012	A1
20120323226	Chowaniec et al.	Dec 2012	A1
20120330285	Hartoumbekis et al.	Dec 2012	A1
20130093149	Saur et al.	Apr 2013	A1
20130181035	Milliman	Jul 2013	A1
20130184704	Beardsley et al.	Jul 2013	A1
20130214025	Zemlok et al.	Aug 2013	A1
20130274722	Kostrzewski et al.	Oct 2013	A1
20130282052	Aranyi et al.	Oct 2013	A1
20130284792	Ma	Oct 2013	A1
20130292451	Viola et al.	Nov 2013	A1
20130313304	Shelton, IV et al.	Nov 2013	A1
20130317486	Nicholas et al.	Nov 2013	A1
20130319706	Nicholas et al.	Dec 2013	A1
20130324978	Nicholas et al.	Dec 2013	A1
20130324979	Nicholas et al.	Dec 2013	A1
20130334281	Williams	Dec 2013	A1
20140012236	Williams et al.	Jan 2014	A1
20140012237	Pribanic et al.	Jan 2014	A1
20140012289	Snow et al.	Jan 2014	A1
20140025046	Williams et al.	Jan 2014	A1
20140110455	Ingmanson et al.	Apr 2014	A1
20140207125	Applegate et al.	Jul 2014	A1
20140207182	Zergiebel et al.	Jul 2014	A1
20140207185	Goble et al.	Jul 2014	A1
20140236174	Williams et al.	Aug 2014	A1
20140276932	Williams et al.	Sep 2014	A1
20140299647	Scirica et al.	Oct 2014	A1
20140303668	Nicholas et al.	Oct 2014	A1
20140358129	Zergiebel et al.	Dec 2014	A1
20140361068	Aranyi et al.	Dec 2014	A1
20140365235	DeBoer et al.	Dec 2014	A1
20140373652	Zergiebel et al.	Dec 2014	A1
20150014392	Williams et al.	Jan 2015	A1
20150048144	Whitman	Feb 2015	A1
20150076205	Zergiebel	Mar 2015	A1
20150080912	Sapre	Mar 2015	A1
20150112381	Richard	Apr 2015	A1
20150122870	Zemlok et al.	May 2015	A1
20150133224	Whitman et al.	May 2015	A1
20150150547	Ingmanson et al.	Jun 2015	A1
20150150574	Richard et al.	Jun 2015	A1
20150157320	Zergiebel et al.	Jun 2015	A1
20150157321	Zergiebel et al.	Jun 2015	A1
20150164502	Richard et al.	Jun 2015	A1
20150201931	Zergiebel et al.	Jul 2015	A1
20150272577	Zemlok et al.	Oct 2015	A1
20150297199	Nicholas et al.	Oct 2015	A1
20150303996	Calderoni	Oct 2015	A1
20150320420	Penna et al.	Nov 2015	A1
20150327850	Kostrzewski	Nov 2015	A1
20150342601	Williams et al.	Dec 2015	A1
20150342603	Zergiebel et al.	Dec 2015	A1
20150374366	Zergiebel et al.	Dec 2015	A1
20150374370	Zergiebel et al.	Dec 2015	A1
20150374371	Richard et al.	Dec 2015	A1
20150374372	Zergiebel et al.	Dec 2015	A1
20150374449	Chowaniec et al.	Dec 2015	A1
20150380187	Zergiebel et al.	Dec 2015	A1
20160095585	Zergiebel et al.	Apr 2016	A1
20160095596	Scirica et al.	Apr 2016	A1
20160106406	Cabrera et al.	Apr 2016	A1
20160113648	Zergiebel et al.	Apr 2016	A1
20160113649	Zergiebel et al.	Apr 2016	A1
20160310134	Contini et al.	Oct 2016	A1
20160361057	Williams	Dec 2016	A1
20170333077	Williams et al.	Nov 2017	A1
20180280024	Williams	Oct 2018	A1
20180360460	Mozdzierz et al.	Dec 2018	A1
20200188053	Williams et al.	Jun 2020	A1
20200222050	Eisinger	Jul 2020	A1
20200222051	Eisinger	Jul 2020	A1
20210204952	Sgroi	Jul 2021	A1

Foreign Referenced Citations (26)

Number	Date	Country
2451558	Jan 2003	CA
1547454	Nov 2004	CN
1957854	May 2007	CN
101495046	Jul 2009	CN
101856251	Oct 2010	CN
102247182	Nov 2011	CN
102008053842	May 2010	DE
0705571	Apr 1996	EP
1563793	Aug 2005	EP
1759652	Mar 2007	EP
1769754	Apr 2007	EP
1908412	Apr 2008	EP
1917929	May 2008	EP
1952769	Aug 2008	EP
2090247	Aug 2009	EP
2245994	Nov 2010	EP
2316345	May 2011	EP
2377472	Oct 2011	EP
2668910	Dec 2013	EP
2815705	Dec 2014	EP
2333509	Feb 2010	ES
2861574	May 2005	FR
2005125075	May 2005	JP
20120022521	Mar 2012	KR
2011108840	Sep 2011	WO
2012040984	Apr 2012	WO

Non-Patent Literature Citations (44)

Entry
Extended European Search Report dated Sep. 22, 2020 corresponding to counterpart Patent Application EP 20170561.3.
Extended European Search Report corresponding to International Application No. EP 14 18 4882.0 dated May 12, 2015.
Canadian Office Action corresponding to International Application No. CA 2640399 dated May 7, 2015.
Japanese Office Action corresponding to International Application No. JP 2011-197365 dated Mar. 23, 2015.
Japanese Office Action corresponding to International Application No. JP 2011-084092 dated May 20, 2015.
Japanese Office Action corresponding to International Application No. JP 2014-148482 dated Jun. 2, 2015.
Extended European Search Report corresponding to International Application No. EP 14 18 9358.6 dated Jul. 8, 2015.
Extended European Search Report corresponding to International Application No. EP 14 19 6148.2 dated Apr. 23, 2015.
Partial European Search Report corresponding to International Application No. EP 14 19 6704.2 dated May 11, 2015.
Australian Office Action corresponding to International Application No. AU 2010241367 dated Aug. 20, 2015.
Partial European Search Report corresponding to International Application No. EP 14 19 9783.3 dated Sep. 3, 2015.
Extended European Search Report corresponding to International Application No. EP 15 16 9962.6 dated Sep. 14, 2015.
Extended European Search Report corresponding to International Application No. EP 15 15 1076.5 dated Apr. 22, 2015.
Japanese Office Action corresponding to International Application No. JP 2011-084092 dated Jan. 14, 2016.
Extended European Search Report corresponding to International Application No. EP 12 19 7970.2 dated Jan. 28, 2016.
Chinese Office Action corresponding to International Application No. CN 201210560638.1 dated Oct. 21, 2015.
European Office Action corresponding to International Application No. EP 14 15 9056.2 dated Oct. 26, 2015.
Australian Examination Report No. 1 corresponding to International Application No. AU 2015200153 dated Dec. 11, 2015.
Australian Examination Report No. 1 corresponding to International Application No. AU 2014204542 dated Jan. 7, 2016.
Chinese Office Action corresponding to International Application No. CN 201310125449.6 dated Feb. 3, 2016.
Extended European Search Report corresponding to International Application No. EP 15 19 0245.9 dated Jan. 28, 2016.
Extended European Search Report corresponding to International Application No. EP 15 16 7793.7 dated Apr. 5, 2016.
European Office Action corresponding to International Application No. EP 14 18 4882.0 dated Apr. 25, 2016.
Extended European Search Report corresponding to International Application No. EP 14 19 6704.2 dated Sep. 24, 2015.
International Search Report and Written Opinion corresponding to Int'l Appln. No. PCT/US2015/051837, dated Dec. 21, 2015.
Extended European Search Report corresponding to International Application No. EP 14 19 7563.1 dated Aug. 5, 2015.
Partial European Search Report corresponding to International Application No. EP 15 19 0643.5 dated Feb. 26, 2016.
Extended European Search Report corresponding to International Application No. EP 15 16 6899.3 dated Feb. 3, 2016.
Extended European Search Report corresponding to International Application No. EP 14 19 9783.3 dated Dec. 22, 2015.
Extended European Search Report corresponding to International Application No. EP 15 17 3807.7 dated Nov. 24, 2015.
Extended European Search Report corresponding to International Application No. EP 15 19 0760.7 dated Apr. 1, 2016.
Extended European Search Report corresponding to International Application No. EP 15 17 3803.6 dated Nov. 24, 2015.
Extended European Search Report corresponding to International Application No. EP 15 17 3804.4 dated Nov. 24, 2015.
Extended European Search Report corresponding to International Application No. EP 15 18 8539.9 dated Feb. 17, 2016.
Extended European Search Report corresponding to International Application No. EP 15 17 3910.9 dated Nov. 13, 2015.
European Office Action corresponding to International Application No. EP 14 15 2236.7 dated Aug. 11, 2015.
Extended European Search Report corresponding to International Application No. EP 15 18 4915.5 dated Jan. 5, 2016.
Chinese Office Action corresponding to counterpart Int'l Appln. No. CN 201310369318.2 dated Jun. 28, 2016.
Chinese Office Action (with English translation), dated Jul. 4, 2016, corresponding to Chinese Patent Application No. 2015101559718; 23 total pages.
European Search Report EP 15 156 035.6 dated Aug. 10, 2016.
European Search Report corresponding to EP 15 184 915.5-1654 dated Sep. 16, 2016.
Australian Examination Report No. 1 corresponding to International Application No. AU 2013205872 dated Oct. 19, 2016.
Australian Examination Report from Appl. No. AU 2013205840 dated Nov. 3, 2016.
Notification of Transmittal of the International Search Report and The Written Opinion of the International Searching Authority issued in corresponding application No. PCT/US2016/027042 dated Jul. 12, 2016.

Related Publications (1)

	Number	Date	Country
	20200222050 A1	Jul 2020	US

Provisional Applications (1)

	Number	Date	Country
	62836905	Apr 2019	US

Continuation in Parts (1)

	Number	Date	Country
Parent	15972606	May 2018	US
Child	16829128		US

Electromechanical surgical stapler including trocar assembly release mechanism

Information

Patent Number

Date Filed

Date Issued

Inventors

Original Assignees

Examiners

CPC

Field of Search

CPC

International Classifications

Term Extension

Abstract

Description

Claims

CROSS-REFERENCE TO RELATED APPLICATIONS

US Referenced Citations (467)

Foreign Referenced Citations (26)

Non-Patent Literature Citations (44)

Related Publications (1)

Provisional Applications (1)

Continuation in Parts (1)