Patent Application
20210259669
This disclosure relates to surgical devices for performing endoscopic surgical procedures. More specifically, this disclosure relates to a selectively adjustable elongate assembly configured for use with the surgical devices.
Hernias are abnormal protrusions of an organ or other body structure through a defect or natural opening in a covering membrane, muscle or bone. During surgical hernia repair procedures, surgical mesh materials are placed over the defect in the abdominal wall and are often sutured within the surgical opening by conventional suturing techniques. Traditionally, hernia repairs involved major invasive surgical procedures which often caused excessive trauma to the patient and necessitated long postoperative recuperative periods.
Recently, the use of laparoscopic and endoscopic surgical procedures has been relatively popular. During laparoscopic or endoscopic surgical procedures, access to a surgical site is achieved through a small incision or through a narrow cannula inserted through a small entrance wound in a patient.
In accordance with this disclosure, a surgical device includes a handle assembly, an elongate assembly detachably coupled to the handle assembly, and a cartridge operatively coupled to the handle assembly. The elongate assembly includes a telescopic shaft transitionable between a retracted configuration and an extended configuration to selectively adjust a length of the surgical device, and an adapter portion coupled to the telescopic shaft. The cartridge includes a plurality of anchors that are released from the cartridge when the handle assembly is actuated.
In an aspect, the telescopic shaft may be tapered along a length thereof.
In another aspect, the handle assembly may define an opening configured to receive the telescopic shaft therethrough.
In yet another aspect, the entire telescopic shaft may be received in the handle assembly when the telescopic shaft is in the retracted configuration.
In still yet another aspect, the telescopic shaft may define a lumen therethrough.
In still yet another aspect, the adapter portion may be distal of the telescopic shaft.
In an aspect, the adapter portion may have a diameter larger than a diameter of a distal portion of the telescopic shaft.
In another aspect, at least a portion of the adapter portion may be received in the handle assembly when the telescopic shaft is in the retracted configuration.
In another aspect, the telescopic shaft may include a plurality of segments concentrically arranged.
In yet another aspect, each segment of the plurality of segments may partially overlap adjacent segments.
In still yet another aspect, each segment may frictionally engage adjacent segments to maintain a relative position therewith.
In still yet another aspect, at least one of the telescopic shaft or the adapter portion may be formed of a biocompatible material.
In an aspect, the at least one of the telescopic shaft or the adapter portion may be formed of a medical grade metal.
In an aspect, the adapter portion of the elongate assembly may be configured to support the cartridge therein.
In another aspect, a length of the telescopic shaft in the extended configuration may be more than twice the length of the telescopic shaft in the retracted configuration.
In accordance with another aspect of the disclosure, a surgical device includes a handle assembly, an elongate assembly detachably coupled to the handle assembly, and an end effector attachable to an adapter portion of the elongate assembly. The elongate assembly includes a telescopic shaft transitionable between a retracted configuration and an extended configuration to selectively adjust a length of the surgical device, and the adapter portion coupled to the telescopic shaft.
The above and other aspects and features of this disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings wherein like reference numerals identify similar or identical elements.
The surgical device disclosed herein is 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 “distal” refers to the portion that is being described which is further from a user, while the term “proximal” refers to the portion that is being described which is closer to a user. In addition, the terms parallel and perpendicular are understood to include relative configurations that are substantially parallel and substantially perpendicular up to about + or −10 degrees from true parallel and true perpendicular. Further, to the extent consistent, any or all of the aspects detailed herein may be used in conjunction with any or all of the other aspects detailed herein.
In
The handle assembly 20 includes a handle housing 21 including a trigger 22 operatively coupled to the cartridge 500 (
The telescopic shaft 150 may be tapered along a length thereof to facilitate transition between the extended and retracted configurations. However, it is contemplated that the telescopic shaft 150 may have a substantially uniform diameter. Under such a configuration, the clinician may selectively adjust the length of the telescopic shaft 150. In this manner, the elongate assembly 100 may be transitionable between a retracted configuration (
In the retracted condition, the adapter portion 110 of the elongate assembly 100 is at least partially received in the opening 28 of the handle assembly 20. The plurality of overlapping segments 152 provides sufficient friction to maintain the desired length of the elongate assembly 100. By placing the elongate assembly 100 in the retracted configuration (
The cartridge 500 may include at least an outer tube, a coil or helical thread provided along an interior of the outer tube, and an inner shaft rotatably disposed within the coil or helical thread as known by one skilled in the art. The inner shaft may include a splined distal end portion configured to support at least one anchor or tack, and a proximal end portion configured and adapted for mechanical and to a distal end of an intermediate flexible drive cable.
In use, the elongate assembly 100 is initially placed in the retracted configuration. The supporting portion 160 is coupled to the handle assembly 20 through the opening 28 of the handle assembly 20. The cartridge 500 may be loaded into the adapter portion 110. Thereafter, the telescopic shaft 150 is transitioned to the extended configuration based on the desired length of the telescopic shaft 150 by moving, e.g., the adapter portion 100, in the direction of an arrow “D” (
It is also envisioned that the elongate assembly 100 may be configured to be connected to a robotic arm of a robotic surgical system to enable manipulation and control thereof.
While the disclosure has been shown in the drawings, it is not intended that the disclosure be limited thereto, as it is intended that the disclosure be as broad in scope as the art will allow and that the specification be read likewise. Therefore, the above description should not be construed as limiting, but merely as exemplifications. Those skilled in the art will envision other modifications within the scope and spirit of the claims appended hereto.
This application claims the benefit of and priority to U.S. Provisional Patent Application Ser. No. 62/980,549 filed Feb. 24, 2020, the entire disclosure of which is incorporated by reference herein.
| Number | Date | Country | |
|---|---|---|---|
| 62980549 | Feb 2020 | US |
