The present disclosure relates to a medical device, and in particular to a mitral valve repair device and a control handle thereof.
Valves are membrane-like structures that can be opened and closed in organs of humans or some animals. For example, there are four valves in the human's heart, including the aortic valve, the pulmonary valve, the mitral valve, and the tricuspid valve. Taking the human's mitral valve as an example, the mitral valve is located between the left atrium and the left ventricle. When the left ventricle contracts, the mitral valve, acting as a check valve, tightly closes an atrioventricular opening to prevent blood from flowing back from the left ventricle to the left atrium. However, if the mitral valve is diseased, it may be difficult for the mitral valve to be closed when the left ventricle contracts, causing the left atrium to receive a large amount of reflux blood. This may lead to a sharp rise in pressures of the left atrium and the pulmonary vein, an increase in the load of the left ventricular diastolic volume, and further lead to a series of pathological changes such as left ventricular enlargement and pulmonary hypertension. Eventually, it may result in clinical manifestations such as heart failure, arrhythmia, etc., which may be life-threatening in severe cases. A mitral valve repair device can be used to repair the diseased mitral valve, for example, clamp valves of the mitral valve, so that one large hole formed by the valve leaflets changes to two small holes, and thus a regurgitation area is reduced, thereby effectively preventing mitral regurgitation. Similarly, the mitral valve repair device can also be applied to the repair of the heart's tricuspid valve and other valves, achieving the same effect of reducing the regurgitation area by clamping valve leaflets on both sides. The mitral valve repair device may include a control handle configured to control the tissue clamping device to perform valve repair. Therefore, it is desirable to provide a mitral valve repair device and a control handle thereof with improved efficiency and success rate of mitral valve repair and convenient operation of mitral valve repair.
According to an aspect of the present disclosure, a control handle for mitral valve repair is provided. The control handle may include an outer clamp arm control mechanism and an inner clamp arm control mechanism. The outer clamp arm control mechanism may be configured to control a movement of an outer clamp arm of a tissue clamping device and include a sleeve, a first control part, and a sliding part. The sliding part may be disposed in the sleeve. The first control part may rotate to drive the sliding part to move in the sleeve along a length direction of the sleeve, so as to control opening and closing of the outer clamp arm. The inner clamp arm control mechanism which is configured to control a movement of an inner clamp arm of the tissue clamping device and includes a housing and a second control part. The second sliding groove may be set on the housing. The second control part may pass through and moves along the second sliding groove to control opening and closing of the inner clamp arm relative to the outer clamp arm.
In some embodiments, the external thread may be disposed on an outer circumferential surface of the sleeve. An internal thread may be disposed on an inner circumferential surface of the first control part. The sleeve and the first control part may be connected by the external thread and the internal thread. A first sliding groove may be set on the sleeve and along the length direction of the sleeve. The sliding part may pass through the first sliding groove and be connected to the first control part by.
In some embodiments, the first control part may include a thread engagement mechanism. The thread engagement mechanism may include a manipulation button, a first elastic member, and a pair of engagement members. The engagement members may be symmetrically disposed and configured to be engaged with the external thread of the sleeve by an elastic force of the first elastic member. The manipulation button may be disposed on an outer side of the engagement members and configured to control the engagement members to be separated from the external thread of the sleeve by overcoming the elastic force of the first elastic member.
In some embodiments, the sliding part may include an outer cover, a middle tube, and an inner pipe. The middle tube may be sleeved outside the inner pipe. One or more openings may be set on the middle tube. One or more fixture blocks that can extend outward are disposed on the inner pipe, and engaged with the outer cover by passing through the one or more openings, so as to restrict a relative movement of the middle tube, the inner pipe, and the outer cover in the length direction of the sleeve.
In some embodiments, one or more locking teeth may be disposed at a front end of the middle tube. One or more locking grooves corresponding to the one or more locking teeth may be disposed at the outer cover. The one or more locking teeth are engaged with the one or more locking grooves to restrict a relative rotation of the middle tube and the outer cover.
In some embodiments, a rear end of the middle tube may be disposed with a boss, and a rear end of the inner pipe may extend from the middle tube. By at least one of pulling the boss or pushing the rear end of the inner pipe, the one or more locking teeth may be separated from the one or more locking grooves, and the one or more fixture blocks may be pressed into the middle tube.
In some embodiments, the outer clamp arm control mechanism may further include a driving rod, a fixing block, and a protective cover. The sliding part may control the opening and closing of the outer clamp arm by the driving rod. A rear end of the driving rod may be fixedly connected to the fixing block. The protective cover may be detachably connected to the sliding part by a thread. When connected to the sliding part, the protective cover may restrict a relative movement of the fixing block and the sliding part.
In some embodiments, the second control part may include an L-shaped duct and an end cover; and one end of the duct may pass through the second sliding groove and is detachably connected to the end cover.
In some embodiments, the second control part includes a first sub-control part for controlling a first inner clamp arm and a second sub-control part for controlling a second inner clamp arm.
In some embodiments, the inner clamp arm control mechanism may further include a locking mechanism. The locking mechanism may include a second elastic member, one or more locking buttons, and one or more locking blocks. The second control part may further include one or more tooth-shaped connecting parts. The one or more locking buttons may be configured to control the one or more locking blocks to overcome an elastic force of the second elastic member, so as to release the restriction of the one or more locking blocks on the one or more toothed-shaped connecting parts.
In some embodiments, the control handle may further include a flexible tube control mechanism that includes a screw, a rotating part, and a traction part. The screw and the traction part may be threadedly connected. The rotating part may be configured to drive the screw to rotate, thereby driving the traction part to move. The movement of the traction part may control the flexible tube to bend.
In some embodiments, the outer clamp arm control mechanism may further include a first indicating device, the first indicating device being configured to indicate an opening angle of the outer clamp arm according to a position of at least one of the first control part or the sliding part.
In some embodiments, the first indicating device may include one or more angle marks disposed on the sleeve.
In some embodiments, the first indicating device may include a processor, a display, and a first sensor. The first sensor may be configured to detect the position of at least one of the first control part or the sliding part. The processor may be configured to determine the opening angle of the outer clamp arm according to the position of at least one of the first control part or the sliding part, and control the display to display the opening angle of the outer clamp arm.
In some embodiments, the inner clamp arm control mechanism may further include a second indicating device, the second indicating device being configured to indicate an opening angle of the inner clamp arm based on a position of the second control part.
In some embodiments, the opening angle of the inner clamp arm may be an angle of the inner clamp arm with respect to a closed state thereof.
In some embodiments, the second indicating device may include one or more angle marks disposed on the housing. The second indicating device may include a processor, a display, and a second sensor, the second sensor being configured to detect the position of the second control part, the processor being configured to determine the opening angle of the inner clamp arm according to the position of the second control part, and control the display to display the opening angle of the inner clamp arm.
In some embodiments, the opening angle of the inner clamp arm may be an angle of the inner clamp arm with respect to the outer clamp arm.
According to another aspect of the present disclosure, a mitral valve repair device including the control handle for mitral valve repair described in the present disclosure is provided.
According to another aspect of the present disclosure, a mitral valve repair device is provided. The mitral valve repair device may include a tissue clamping device and a control handle. The tissue clamping device may include an outer clamp arm and an inner clamp arm. The control handle may include an outer clamp arm control mechanism and an inner clamp arm control mechanism, the outer clamp arm control mechanism being configured to control opening and closing of the outer clamp arm, and the inner clamp arm control mechanism being configured to control opening and closing of the inner clamp arm relative to the outer clamp arm. The control handle may be configured to transport the tissue clamping device to the mitral valve via the left atrial appendage and the left atrium, and control the opening and closing of the outer clamp arm and the inner clamp arm so that the mitral valve can be clamped between the outer clamp arm and the inner clamp arm.
In some embodiments, the mitral valve repair device may further include a delivery tube, wherein the tissue clamping device is connected to the control handle via the delivery tube.
In some embodiments, the delivery tube may be inflexible.
In some embodiments, the delivery tube may include a flexible tube, and the control handle may further include a flexible tube control mechanism configured to control the bending of the flexible tube.
In some embodiments, the flexible tube is set with a plurality of notches along a length direction of the flexible tube. The flexible tube control mechanism may include a traction part and control opening and closing of the plurality of notches by the traction part, thereby controlling the bending of the flexible tube.
In some embodiments, the outer clamp arm control mechanism may include a sleeve, a first control part, and a sliding part, the sliding part being disposed in the sleeve, the first control part rotating to drive the sliding part to move in the sleeve along a length direction of the sleeve, so as to control the opening and closing of the outer clamp arm. The inner clamp arm control mechanism may include a housing and a second control part, a second sliding groove being set on the housing, the second control part passing through and move along the second sliding groove to control the opening and closing of the inner clamp arm relative to the outer clamp arm.
In some embodiments, an external thread may be disposed on an outer circumferential surface of the sleeve. An internal thread may be disposed on an inner circumferential surface of the first control part. The sleeve and the first control part may be connected by the external thread and the internal thread. A first sliding groove may be set on the sleeve and along the length direction thereof. The sliding part may pass through the first sliding groove and be connected to the first control part.
In some embodiments, the first control part may include a thread engagement mechanism including a manipulation button, a first elastic member, and a pair of engagement members. The engagement members may be symmetrically disposed and configured to be engaged with the external thread of the sleeve by an elastic force of the first elastic member. The manipulation button may be disposed on an outer side of the engagement members and configured to control the engagement members to be separated from the external thread of the sleeve by overcoming the elastic force of the first elastic member.
In some embodiments, the sliding part may include an outer cover, a middle tube, and an inner pipe. The middle tube may be sleeved outside the inner pipe. One or more openings may be set on the middle tube. One or more fixture blocks that can extend outward may be disposed on the inner pipe and engaged with the outer cover by passing through the one or more openings, so as to restrict a relative movement of the middle tube, the inner pipe, and the outer cover in the length direction of the sleeve.
In some embodiments, the outer clamp arm control mechanism may further include a driving rod, a fixing block, and a protective cover. The sliding part may control the opening and closing of the outer clamp arm by the driving rod. A rear end of the driving rod may be fixedly connected to the fixing block. The protective cover may be detachably connected to the sliding part by a thread. When the protective cover is connected to the sliding part, the protective cover may restrict a relative movement of the fixing block and the sliding part.
In some embodiments, the second control part may include an L-shaped duct and an end cover. One end of the duct may pass through the second sliding groove and is detachably connected to the end cover.
In some embodiments, the inner clamp arm control mechanism may further include a locking mechanism including a second elastic member, one or more locking buttons, and one or more locking blocks. The second control part may further include one or more tooth-shaped connecting parts. The one or more locking buttons may be configured to control the one or more locking blocks to overcome an elastic force of the second elastic member, so as to release the restriction of the one or more locking blocks on the one or more tooth-shaped connecting parts.
According to yet another aspect of the present disclosure, an outer clamp arm control mechanism for controlling opening and closing of an outer clamp arm of a tissue clamping device is provided. The outer clamp arm control mechanism may include a sleeve, a first control part, a sliding part, and a first indicating device. The sliding part may be disposed in the sleeve. The first control part may rotate to drive the sliding part to move in the sleeve along a length direction of the sleeve, so as to control opening and closing of the outer clamp arm. The first indicating device may be configured to indicate an opening angle of the outer clamp arm according to a position of at least one of the first control part or the sliding part.
In some embodiments, the first indicating device may include one or more angle marks disposed on the sleeve.
In some embodiments, the first indicating device may include a processor, a display, and a first sensor. The first sensor may be configured to detect the position of at least one of the first control part or the sliding part. The processor may be configured to determine the opening angle of the outer clamp arm according to the position of at least one of the first control part or the sliding part, and control the display to display the opening angle of the outer clamp arm.
In some embodiments, a first sliding groove may be set on the sleeve and along the length direction of the sleeve. The sliding part may pass through the first sliding groove and be connected to the first control. The first sensor may include a distance measuring module configured to detect at least one of the following: a distance between one end of the sleeve and the sliding part; a distance between one end of the sleeve and the first control part; a distance between one end of the first sliding groove and the sliding part; or a distance between one end of the first sliding groove and the first control part.
In some embodiments, the outer clamp arm control mechanism may further include a first prompting device configured to prompt that the outer clamp arm has reached a preset angle.
In some embodiments, the first prompting device may include one or more first contact parts and one or more second contact parts. The one or more first contact parts may be disposed inside the sleeve. The one or more second contact parts may be disposed outside the sliding part. When the one or more second contact parts and the one or more first contact parts are in contact, respectively, a prompt that the outer clamp arm has reached a preset angle may be generated.
In some embodiments, a plurality of the one or more first contact parts may be disposed in an inner side of the sleeve and along a length direction of the sleeve.
In some embodiments, the first prompting device may further include a speaker; and when the one or more first contact parts and the one or more second contact parts are in contact, respectively, the speaker may play one or more preset voices.
In some embodiments, an external thread may be disposed on an outer circumferential surface of the sleeve. An internal thread may be disposed on an inner circumferential surface of the first control part. The sleeve and the first control part may be connected by the external thread and the internal thread. A first sliding groove may be set on the sleeve and along the length direction thereof. The sliding part may pass through the first sliding groove and be connected to the first control part.
In some embodiments, a fin may be disposed on the outer circumferential surface of the sleeve, and disposed along a spiral direction of the external thread. A paddle corresponding to the fin may be disposed on the inner circumferential surface of the first control part. When the first control part and the sleeve rotate relatively, the paddle may move the fin on the outer circumferential surface of the sleeve.
According to yet another aspect of the present disclosure, an inner clamp arm control mechanism for controlling opening and closing of an inner clamp arm of a tissue clamping device is provided. The inner clamp arm control mechanism may include a housing, a second control part, and a second indicating device. A second sliding groove may be set on the housing. The second control part may pass through the second sliding groove and move along the second sliding groove to control the opening and closing of the inner clamp arm relative to an outer clamp arm. The second indicating device may be configured to indicate an opening angle of the inner clamp arm according to a position of the second control part.
In some embodiments, the opening angle of the inner clamp arm may be an angle of the inner clamp arm with respect to a closed state thereof.
In some embodiments, the second indicating device may include one or more angle marks disposed on the housing.
In some embodiments, the second indicating device may include a processor, a display, and a second sensor. The second sensor may be configured to detect a position of the second control part. The processor may be configured to determine the opening angle of the inner clamp arm according to the position of the second control part, and control the display to display the opening angle of the inner clamp arm.
In some embodiments, the second sensor may include a distance measuring module configured to detect a distance between one end of the second sliding groove and the second control part.
In some embodiments, the opening angle of the inner clamp arm may be an angle of the inner clamp arm with respect to the outer clamp arm.
In some embodiments, the second indicating device may be configured to indicate the opening angle of the inner clamp arm according to the position of the second control part and an opening angle of the outer clamp arm, the opening angle of the outer clamp arm being determined by an outer clamp arm control mechanism.
In some embodiments, the second indicating device may include a processor, a display, and a second sensor, the second sensor being configured to detect the position of the second control part, the processor being configured to determine the opening angle of the inner clamp arm according to the position of the second control part, and control the display to display the opening angle of the inner clamp arm.
In some embodiments, the inner clamp arm control mechanism may further include a second prompting device configured to prompt that the inner clamp arm has reached a preset opening angle.
In some embodiments, the inner clamp arm may include a first inner clamp arm and a second inner clamp arm. The second control part may include a first sub-control part and a second sub-control part for controlling the opening and closing of the first inner clamp arm and the second inner clamp arm, respectively. The second indicating device may include a first sub-indicating device and a second sub-indicating device for indicating opening angles of the first inner clamp arm and the second inner clamp arm, respectively.
According to still another aspect of the present disclosure, an inner clamp arm control mechanism is provided. The inner clamp arm control mechanism may include a housing, a second control part, and a connecting rod. A second sliding groove may be set on the housing. The second control part may pass through the second sliding groove and is fixedly connected to an outer wall of the connecting rod. The second control part may move along the second sliding groove to drive the connecting rod to move, and the movement of the connecting rod may control a movement of an inner clamp arm of a tissue clamping device.
In some embodiments, the connecting rod may control the movement of the inner clamp arm by a traction cable. The connecting rod may include an inner hole, the traction cable may pass through the inner hole of the connecting rod, and both ends of the traction cable may be detachably connected to a rear end of the connecting rod.
In some embodiments, the second control part may include a first sub-control part for controlling a first inner clamp arm and a second sub-control part for controlling a second inner clamp arm. The second sliding groove may include a first sub-sliding groove and a second sub-sliding groove corresponding to the first sub-control part and the second sub-control parts, respectively.
In some embodiments, the second control part may include a control button and a connecting body, the control button is connected to the connecting body by passing through the second sliding groove, and the connecting body is fixedly connected to an outer wall of the connecting rod.
In some embodiments, the control button may be movably connected to the connecting body by a spring. One or more grooves may be disposed on the housing. One or more protrusion blocks may be disposed on the control button, and engaged with the grooves under the action of the spring to restrict a movement of the second control part relative to the second sliding groove.
In some embodiments, at least two grooves may be disposed on the housing. When protrusion blocks are respectively engaged with the two grooves, the second control part may be located at both ends of the second sliding groove.
According to yet another aspect of the present disclosure, a control handle for mitral valve repair is provided. The control handle may include the inner clamp arm control mechanism described in the preset disclosure.
In some embodiments, the control handle may further include an outer clamp arm control mechanism for controlling the movement of the outer clamp arm of the tissue clamping device. The outer clamp arm control mechanism may include a sleeve, a first control part, a sliding part, and a driving rod. The sliding part may be disposed in the sleeve, and connected to the driving rod. The first control part may rotate to drive the sliding part to move in the sleeve along a length direction of the sleeve, so as to control opening and closing of the outer clamp arm. An internal thread may be disposed on an inner circumferential surface of the first control part. An external thread may be disposed on the sliding part. A first sliding groove may be set on the sleeve and along the length direction thereof. The sliding part may pass through the first sliding groove, and the external thread on the sliding part may cooperate with the internal thread of the first control part.
In some embodiments, the control handle may further include a guide block. The guide block may include three spaced through holes A, B and C, central axes of which are located on a first plane. The through holes A and C on both sides of the guide block may be configured to guide a connecting rod that controls the movement of the inner clamp arm, the through hole B in the middle of the guide block may be configured to guide a driving rod that controls the movement of the outer clamp arm. On one side of the first plane, the through holes A and B may communicate with each other through a hose, and on the other side of the first plane, the through holes B and C may be communicate with each other through a hose.
According to yet another aspect of the present disclosure, a mitral valve repair device is provided. The mitral valve repair device may include the control handle described in the present disclosure.
The present disclosure is further described in terms of exemplary embodiments. These exemplary embodiments are described in detail with reference to the drawings. It should be noted that the drawings are not to scale. These embodiments are non-limiting exemplary embodiments, in which like reference numerals represent similar structures throughout the several views of the drawings, and wherein:
In the drawings:
100-mitral valve repair device;
200-tissue clamping device;
210-inner clamp arm;
211-first inner clamp arm;
213-second inner clamp arm;
215-barb;
220-outer clamp arm;
221-first outer clamp arm;
223-second outer clamp arm;
230-fixing member;
240-supporting part;
250-connecting member;
260-outer clamping plate;
261-first outer clamping plate;
263-second outer clamping plate;
270-connection pipe;
280-elastic locking member;
300-control handle;
400-outer clamp arm control mechanism;
410-sleeve;
412-first sliding groove;
420-first control part;
421-connection groove;
429-connection block;
430-sliding part;
431-outer cover;
433-middle tube;
434-opening;
435-inner pipe;
437-fixture block;
438-locking groove;
439-locking tooth;
440-driving rod;
450-thread engagement mechanism;
451-manipulation button;
453-first elastic member;
455-engagement member;
456-pressing part;
457-engagement part;
460-fixing block;
470-protective cover;
480-boss;
500-inner clamp arm control mechanism;
510-housing;
511-second sliding groove;
511-1-first sub-sliding groove;
511-2-second sub-sliding groove;
520-second control part;
520-1-first sub-control part;
520-2-second sub-control part;
521-duct;
522-connecting rod;
522-1-first sub-connecting rod;
522-2-second sub-connecting rod;
523-end cover;
523-1-first sub-end cover;
523-2-second sub-end cover;
524-control button;
525-protrusion block;
526-connecting body;
527-groove;
530-locking mechanism;
531-second elastic member;
533-locking button;
535-locking block;
537-tooth-shaped connecting part;
540-guide block;
541-first intersecting hole;
542-second intersecting hole;
600-delivery tube;
610-flexible tube;
612-inner core;
614-outer pipe;
616-notch;
620-flexible tube control mechanism;
621-screw;
622-rotating part;
623-traction part;
625-traction rope;
627-threaded traction block;
629-bending indication device;
700-delivery connection member;
710-main body;
720-first connection piece;
730-second connection piece;
740-fixed supporting rod;
810-first indicating device;
811-angle mark;
821-first sensor;
823-processor;
825-display;
830-first prompting device;
831-first contact part;
833-second contact part;
835-speaker;
910-second indicating device;
911-angle mark;
921-second sensor;
923-processor;
925-display.
The following description is presented to enable any person skilled in the art to make and use the present disclosure and is provided in the context of a particular application and its requirements. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present disclosure. Thus, the present disclosure is not limited to the embodiments shown but is to be accorded the widest scope consistent with the claims.
On the contrary, the present disclosure covers any alternatives, modifications, equivalent methods and solutions defined by the claims in the spirit and scope. Further, in order to enable those skilled in the art to have a better understanding of the present disclosure, some specific details are described in detail in the detailed description below. Those skilled in the art can fully understand the present disclosure without the description of these details.
The terminology used herein is to describe particular example embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” may be intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises,” “comprising,” “includes,” and/or “including” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
These and other features, and characteristics of the present disclosure, as well as the methods of operation and functions of the related elements of structure and the combination of parts and economies of manufacture, may become more apparent upon consideration of the following description with reference to the accompanying drawing(s), all of which form a part of this specification. It is to be expressly understood, however, that the drawing(s) is for the purpose of illustration and description only and are not intended to limit the scope of the present disclosure. It is understood that the drawings are not to scale.
The present disclosure relates to a mitral valve repair device and a control handle thereof. The mitral valve repair device may be configured to repair a mitral valve or other valves (such as a tricuspid valve). The mitral valve repair device may include a tissue clamping device and the control handle. The tissue clamping device may be configured to clamp a valve to repair it. The control handle may be configured to transport and control the tissue clamping device. In some embodiments, the tissue clamping device may reach a predetermined position through multiple paths. For example, the tissue clamping device may be transported to the mitral valve via the femoral vein, inferior vena cava, right atrium, and left atrium to repair the mitral valve. As another example, the tissue clamping device may be transported to the mitral valve via the left atrial appendage and the left atrium to repair the mitral valve.
In some embodiments, the mitral valve repair device 100 may include a delivery tube 600. The tissue clamping device 200 may be connected to the control handle 300 via the delivery tube 600. In some embodiments, the delivery tube 600 may be flexible (for example, the delivery tube 600 is made of an elastic material). The control handle 300 may transport the tissue clamping device 200 to the mitral valve through the femoral vein, inferior vena cava, right atrium, or left atrium by the flexible delivery tube 600. In some embodiments, the delivery tube 600 may be inflexible (for example, the delivery tube 600 is made of a rigid material). In such cases, the control handle 300 may transport the tissue clamping device 200 to the mitral valve through the left atrial appendage or the left atrium by the inflexible delivery tube 600. In some embodiments, the delivery tube 600 may include a flexible tube 610 in order to better control the tissue clamping device 200 when the tissue clamping device 200 is delivered to the mitral valve through the left atrial appendage and the left atrium. As shown in
In some embodiments, as shown in
In some embodiments, the first inner clamp arm 211 may be disposed on the first outer clamp arm 221, and the second inner clamp arm 213 may be disposed on the second outer clamp arm 223. The first inner clamp arm 211 and the second inner clamp arm 213 may be opened and closed relative to the first outer clamp arm 221 and the second outer clamp arm 223, respectively, which enables the tissue (such as the mitral valve) to be clamped between the first inner clamp arm 211 and the first outer clamp arm 221 and to be clamped between the second inner clamp arm 213 and the second outer clamp arm 223. In some embodiments, the inner clamp arm 210 (i.e., the first inner clamp arm 211 and the second inner clamp arm 213) may be barbed clips. For example, each of movable ends of the inner clamp arm 210 may be disposed with barbs 215. In some embodiments, the inner clamp arm 210 and the outer clamp arm 220 may be connected by bending parts (such as an S-shaped bending structure). The bending parts may have a rebound force, so that the inner clamp arm 210 can closely contact the outer clamp arm 220 in a natural state. In some embodiments, the inner clamp arm control mechanism 500 may control the opening and closing of the inner clamp arm 210 relative to the outer clamp arm 220 by a traction cable (not shown in the figures). For example, the traction cable may be connected to the movable ends of the inner clamp arm 210. When the inner clamp arm control mechanism 500 pulls the traction cable, the inner clamp arm 210 may be opened relative to the outer clamp arm 220 under a pulling force of the traction cable. When the traction cable is relaxed, the inner clamp arm 210 may be closed to the outer clamp arm 220 under the rebound force of the bending parts. In some embodiments, the traction cable may include steel wire, nanowire or glass rope, etc., which is not limited in the present disclosure.
In some embodiments, the delivery tube 600 may be detachably connected to the tissue clamping device 200 by the delivery connection member 700. The delivery connection member 700 may be disposed with through holes, through which the driving rod 440 and the traction cable may pass respectively. In
In some embodiments, the tissue clamping device 200 may have other alternative structural forms. For example,
In
Hereinafter, the control handle 300 may be described by taking the tissue clamping device 200 shown in
In some embodiments, the control handle 300 may include the outer clamp arm control mechanism 400 and the inner clamp arm control mechanism 500. The outer clamp arm control mechanism 400 may be configured to control the movement of the outer clamp arm 220 of the tissue clamping device 200. The inner clamp arm control mechanism 500 may be configured to control the movement of the inner clamp arm 210 of the tissue clamping device 200.
In some embodiments, when the delivery tube 600 includes the flexible tube 610, the control handle 300 may include a flexible tube control mechanism 620 that may be configured to control the bending of the flexible tube 610. In some embodiments, when the delivery tube 600 does not include the flexible tube 610 (for example, when the delivery tube 600 is an inflexible structure), the control handle 300 may include no flexible tube control mechanism 620.
In
In some embodiments, as shown in
In some embodiments, the sleeve 410 may include one or more interlayers. The sliding part 430 may be disposed in the interlayers of the sleeve 410. The first control part 420 may drive the sliding part 430 to move in the sleeve 410 and along the length direction of the sleeve 410. For example, the sleeve 410 may have a hollow cylindrical shape, which may be formed by connecting two semi-cylindrical housings. The sliding part 430 may have a cylindrical shape and may be clamped between the two semi-cylindrical housings of the sleeve 410.
In some embodiments, referring to
In some embodiments, the first control part 420 may have a circular outer contour, and a rubber layer may be disposed on a surface of the outer contour. When an operator controls the outer clamp arm 220 by rotating the first control part 420, the rubber layer can increase the friction between the first control part 420 and the palm or fingers, so that the operator can precisely control the first control part 420. In some other embodiments, a layer made of hard materials such as plastic, metal may be disposed on the surface of the outer contour of the first control part 420 without the rubber layer, and anti-slip patterns may be added on the layer to increase the friction.
In some embodiments, as shown in
In some embodiments, after the clamping of the tissue clamping device 200 is completed, the driving rod 440 needs to be separated from the tissue clamping device 200, and part or whole of the driving rod 440 may be drawn out from the control handle 300. As shown in
In some embodiments, as shown in
In the actual operation, the operator may press the two manipulation buttons 451 that may drive the pair of engagement members 455 to relatively move and thereby compress the first elastic member 453, such that the tooth structure inside the engagement members 455 is separated from the external thread of the sleeve 410. Therefore, the first control part 420 and the sleeve 410 may slide relatively in the length direction of the sleeve 410. At this time, the operator may directly drag the first control part 420 to slide on the sleeve 410, thereby achieving quick opening and closing of the outer clamp arm 220. By controlling the quick opening and closing of the outer clamp arm 220, the mitral valve repair device or control handle thereof can be operated more flexibly during surgery (such as mitral valve repair surgery) and suitable for different surgical conditions. When the operator releases the control button, the engagement members 455 may be again engaged with the external thread of the sleeve 410 under the elastic force of the first elastic member 453, and the operator may rotate the first control part 420 as needed to adjust the opening angle of the outer clamp arm 220 or perform the next operation. By disposing two opposite manipulation buttons 451, it can be convenient for the operator to control the quick opening and closing of the outer clamp arm 220, and effective to prevent the operator from misoperation due to accidental touch.
In some embodiments, the fixture block(s) 437 may be pressed into the middle tube 433. Specifically, the fixture block(s) 437 may be connected to the inner pipe 435 by a bendable structure. For example, one end of each of the fixture block(s) 437 may be connected to an outer wall of the inner pipe 435 by an elastic rod, and the other end thereof may be connected to the outer wall of the inner pipe 435 by the bendable structure having an “S” shape. As another example, one end of each of the fixture block(s) 437 may be suspended, and the other end thereof may be connected to the outer wall of the inner pipe 435 by the bendable structure. When the fixture block(s) 437 are subjected to a squeezing force, the bendable structure may be bent inwardly so that the fixture block(s) 437 are pressed into the middle tube 433 and separated from the opening(s) 434. In some embodiments, there may be one or more fixture blocks 437. In this embodiment, there may be two fixture blocks 437, which are symmetrically disposed, and two openings 434 corresponding to the fixture blocks 437 may be disposed on the middle tube 433, respectively. As another example, there may be 3, 4, 6, etc. fixture blocks 437, which may be disposed annularly along the outside of the inner pipe 435 or along the length direction of the sleeve 410.
As shown in
In some embodiments, a rear end (e.g., a right end in
In some embodiments, one or more internal threads may be disposed on the inner circumferential surface of the first control part 420, one or more external threads may be disposed on the sliding part 430, and one or more first sliding grooves 412 may be disposed on the sleeve 410 along the length direction. The sliding part 430 may pass through the first sliding groove(s) 412 and the external thread(s) on the sliding part 430 may cooperate with the internal thread(s) of the first control part 420, so that the first control part 420 may rotate to drive the sliding part 430 move along the first sliding groove(s) 412. In some embodiments, two first sliding grooves 412 may be disposed on the sleeve 410, which are respectively located on opposite sides of the sleeve 410, and two external threads are correspondingly disposed on the sliding part 430. The two external threads may respectively pass through the two first sliding grooves 412 to protrude outward and cooperate with the internal threads of the first control part 420. By disposing two first sliding grooves 412 and two external threads, the stability of the movement of the sliding part 430 driven by the first control part 420 can be ensured. In some alternative embodiments, a count of the first sliding grooves 412 may be one, three, five, etc.
In some embodiments, as shown in
In some embodiments, the sleeve 410 may be connected to (or integrally formed with) one end of a housing 510, and central axes of the housing 510 and the sleeve 410 may coincide, making the control handle 300 more compact and easier to handle. For example, the housing 510 may be disposed at an end of the sleeve 410 near the tissue clamping device 200. In some alternative embodiments, the housing 510 may be disposed at an end of the sleeve 410 away from the tissue clamping device 200.
In some embodiments, the first control part 420 may have a circular outer contour, and a rubber layer may be disposed on a surface of the outer contour. When the operator controls the outer clamp arm 220 by rotating the first control part 420, the rubber layer can increase the friction between the first control part 420 and the palm or fingers, so that the operator can precisely control the first control part 420. In some embodiments, a layer made of hard materials such as plastic, metal may be disposed on the surface of the outer contour of the first control part 420 without the rubber layer, and anti-slip patterns may be added on the layer to increase the friction.
In some embodiments, after the clamping of the tissue clamping device 200 is completed, the driving rod 440 needs to be separated from the tissue clamping device 200 and part or whole of the driving rod 440 may be drawn out from the control handle 300. As shown in
In some embodiments, the outer clamp arm control mechanism 400 may include a first indicating device 810. The first indicating device 810 may be configured to indicate an opening angle of the outer clamp arm 220 according to the position of the first control part 420 and/or the position of the sliding part 430.
In some embodiments, as shown in
In some embodiments, as shown in
In some embodiments, the first sliding groove(s) 412 may be disposed on the sleeve 410 along its length direction. The sliding part 430 may pass through the first sliding groove(s) 412 and be connected to the first control part 420. The first sensor 821 may include a distance measuring module. The distance measuring module may be configured to detect a distance between one end of the sleeve 410 and the sliding part 430, a distance between one end of the sleeve 410 and the first control part 420, a distance between one end of the first sliding groove 412 and the sliding part 430, a distance between one end of the first sliding groove 412 and the first control part 420, or the like, or any combination thereof. The above distances may reflect the position of the first control part 420 and/or the position of the sliding part 430. Based on one or more of the above distances, the processor 823 may obtain the opening angle of the outer clamp arm 220 and control the display 825 to display it. In some embodiments, the correspondence between the position of at least one of the first control part 420 or the position of the sliding part 430 and the opening angle of the outer clamp arm 220 may be obtained by experiments. The processor 823 may determine the opening angle of the outer clamp arm 220 based on the position of the first control part and/or the position of the sliding part and the correspondence between the position of the first control part and/or the position of the sliding part and the opening angle of the outer clamp arm 220. In some embodiments, the distance measuring module may include an ultrasonic ranging sensor, an infrared distance sensor, a Hall sensor, or the like, or any combination thereof. In some embodiments, the first sensor 821 may detect the position of the first control part 420 and/or the position of the sliding part 430 in other ways. For example, the first sensor 821 may determine the position of the first control part 420 and/or the sliding part 430 by monitoring the number of turns or angles rotated by the first control part 420.
In some embodiments, the outer clamp arm control mechanism 400 may include a first prompting device 830. The first prompting device 830 may be configured to prompt that the outer clamp arm 220 has reached a preset angle of the outer clamp arm 220. Specifically, the first prompting device 830 may prompt the operator that the outer clamp arm 220 is at a specific angle (e.g., 90°, 120°, 180°, etc.) in a visual, tactile, auditory manner, etc., or any combination thereof.
In some embodiments, when the first control part 420 rotates relative to the sleeve 410 and drives the sliding part 430 to move, the first contact part 831 and the second contact part 833 may be in contact or separated from each other. When the first contact part 831 and the second contact part 833 are in contact, the operator may be given a tactile and/or auditory feedback. For example, the first contact part 831 or the second contact part 833 may be a spring protrusion structure (such as a spring bead), and the other may be a corresponding recess. When the first contact part 831 and the second contact part 833 are in contact, the spring protrusion structure may be clamped in the recess, thereby giving the operator feedback of the click sound or the click feeling. In some embodiments, when the first contact part 831 and the second contact part 833 are in contact, the opening angle of the outer clamp arm 220 may reach a preset angle (e.g.,) 180°. By giving the operator tactile and/or auditory feedback, the operator may be effectively prompted that the outer clamp arm 220 has been opened to the preset angle.
In some embodiments, a plurality of first contact parts 831 may be disposed in the sleeve 410 and along its length direction to prompt the operator that the outer clamp arm 220 has been opened to a plurality of preset angles (e.g., 90°, 120°, 180°, etc.). Merely by way of illustration, three first contact parts 831 may be disposed in the sleeve 410, respectively corresponding to three preset angles (e.g., 90°, 120°, and 180°) of the outer clamp arm 220. The three first contact parts 831 may be spring protrusion structures. The second contact parts 833 on the sliding part 430 may be recesses. During the process of controlling the first control part 420 to rotate around the sleeve 410 to open or close the outer clamp arm 220, the three first contact parts 831 may respectively contact the second contact parts 833 to provide three tactile and/or auditory feedback. In some embodiments, in order to further distinguish the feedback at different preset angles (e.g., 90°, 120°, and 180°), the spring protrusion structures of the first contact parts 831 may be different, so that the tactile and/or auditory feedback may be different at the preset angles, and the operator can be clearly prompted.
In some embodiments, the first prompting device 830 may further include a speaker 835. In some embodiments, the speaker 835 may be disposed on the control handle 300. In some alternative embodiments, the speaker 835 may be not disposed on the control handle 300. For example, when one first contact part 831 and the second contact part 833 are in contact, the first prompting device 830 may transmit a contact signal to the speaker 835 (such as a wireless speaker) that is not disposed on the control handle 300 by a signal connection (such as an electrical connection) to give a prompt. The first contact part 831 and the second contact part 833 may include electrical contacts, contact switches, or the like. When one first contact part 831 and the second contact part 833 are in contact, the speaker 835 may play a preset voice. Exemplary preset voices may include a sound (such as a “beep” sound), angle broadcasting information (such as sound broadcasting angles), reminder broadcasting information (such as reminders for experiments or surgery), or the like, or any combination thereof. In some embodiments, when several first contact parts 831 are disposed, the speaker 835 may be configured to play one or more preset voices corresponding to the preset angles. By disposing the speaker 835, the operator can be prompted more intuitively. In some embodiments, the first prompting device 830 may further include one or more prompting components such as a light emitter, a buzzer, and a vibrator.
In some embodiments, the first prompting device 830 may simultaneously use at least two of visual, tactile, or auditory feedbacks to prompt the operator to ensure the prompt effect. Merely by way of illustration, the first contact part(s) 831 or the second contact part 833 may include a spring protrusion structure as an electrical contact. When the first contact part(s) 831 and the second contact part 833 are in contact, the first prompting device 830 may play preset voice by the speaker 835 and provide tactile feedback to the operator.
In some embodiments, a fin may be disposed on the outer circumferential surface of the sleeve 410, and a paddle corresponding to the fin may be disposed on the inner circumferential surface of the first control part 420. When the first control part 420 and the sleeve 410 rotate relatively, the paddle may move the fin on the outer circumferential surface of the sleeve 410. In some embodiments, the fin may be disposed along a spiral direction of the external thread of the sleeve 410. The fin may be made of metal foil, reeds, or other materials. When the first control part 420 drives the paddle to contact with the fin, a sound and/or a sense of frustration may be given to the operator, so that the operator may be prompted to rotate the first control part 420. By disposing the fin and paddle, the misoperation of the operator can be effectively prevented. In some alternative embodiments, a paddle may be disposed on the outer circumferential surface of the sleeve 410, and a fin may be disposed on the inner circumferential surface of the first control part 420.
In some embodiments, as shown in
In some embodiments, as shown in
In this embodiment, the second sliding groove 511 may include a first sub-sliding groove and a second sub-sliding groove, that are set on both sides of the housing 510. The second control part 520 may include a first sub-control part for controlling the first inner clamp arm 211 and a second sub-control part for controlling the second inner clamp arm 213. The first sub-control part and the second sub-control part may respectively correspond to separate traction cables. In some embodiments, the first sub-control part and the second sub-control part (i.e., the second control part 520) may be operated successively or simultaneously according to actual needs, so as to accurately control the first inner clamp arm 211 and the second inner clamp arm 213 (i.e., the inner clamp arm 210) according to the needs of experiments or surgery. For example, during the mitral valve repair process, the first inner clamp arm 211 may be controlled to clamp one side of the mitral valve, and then the second inner clamp arm 213 may be controlled to clamp the other side of the mitral valve. As another example, the second control part 520 may simultaneously control the first inner clamp arm 211 and the second inner clamp arm 213 to clamp the mitral valve.
In some embodiments, one end of the housing 510 may be connected (or integrally formed) with the sleeve 410, and central axes of the housing 510 and the sleeve 410 may coincide, making the control handle 300 more compact and easier to handle. For example, the housing 510 may be disposed at an end of the sleeve 410 near the tissue clamping device 200, and when the first control part 420 is in contact with the rear end of the housing 510, the outer clamp arm 220 may be in a maximum opened state. In some alternative embodiments, the housing 510 may also be disposed at the end of the sleeve 410 away from the tissue clamping device 200.
In some embodiments, as shown in
As shown in
In some embodiments, a mark may be added to each of the locking buttons 533 in order to facilitate the operator to distinguish them. The mark may include “left”, “right”, “L”, “R”, an arrow, or the like, or any combination thereof.
In some embodiments, the connecting rod 522 may control the movement of the inner clamp arm 210 by a traction cable. In a specific embodiment, the connecting rod 522 may include an inner hole, and the traction cable may pass through the inner hole of the connecting rod 522. The traction cable may pass through the through hole at the movable end of the inner clamp arm 210. Both ends of the traction cable may be detachably connected to a rear end (e.g., an end away from the tissue clamping device 200) of the connecting rod 522. Specifically, an end cover 523 may be disposed at the rear end of the connecting rod 522, and both ends of the traction cable may be fixed at the end cover 523. For example, the end cover 523 may be connected to the connecting rod 522 by threads, and both ends of the traction cable may be fixedly locked at positions of the threaded connection between the end cover 523 and the connecting rod 522. When the tissue clamping device 200 and the control handle 300 need to be separated, the end cover 523 and the connecting rod 522 may be separated to release the fixing of the two ends of the traction cable and the traction cable may be drawn out, so that the control handle 300 may be separated from the inner clamp arm 210. In some embodiments, releasing the fixing of the two ends of the traction cable may include: releasing the connection between the two ends of the traction cable and the end cover, untying the knot formed at both ends of the traction cable, cutting the traction cable, or the like, or any combination thereof. In some embodiments, the traction cable may be incompletely removed from the control handle 300, and just detached from the inner clamp arm 210. By disposing the connecting rod 522 and the end cover 523, it is convenient for pulling of the traction cable and manufacturing the inner clamp arm control mechanism 500.
In some embodiments, the second control part 520 may include a first sub-control part 520-1 for controlling the first inner clamp arm 211 and a second sub-control part 520-2 for controlling the second inner clamp arm 213. The second sliding groove 511 may include a first sub-sliding groove 511-1 and a second sub-sliding groove 511-2 corresponding to the first sub-control part 520-1 and the second sub-control part 520-2, respectively. The connecting rod 522 may include a first sub-connecting rod 522-1 and a second sub-connecting rod 522-2 fixed to the first sub controlling part 520-1 and the second sub controlling part 520-2, respectively. A first sub-end cover 523-1 and a second sub-end cover 523-2 may be disposed at rear ends (e.g., ends away from the tissue clamping device 200) of the first sub-connecting rod 522-1 and the second sub-connecting rod 522-2, respectively. In some embodiments, as shown in
In some embodiments, the second control part 520 (such as the first sub-control part 520-1 or the second sub-control part 520-2) may include a control button 524 and a connecting body 526. The control button 524 may be connected (e.g., fixedly connected or movably connected) to the connecting body 526 by passing through the second sliding groove 511. The connecting body 526 may be fixedly connected to the outer wall of the connecting rod 522 in a manner such as glue connection, welding connection, or interference connection.
In some embodiments, the control button 524 may be movably connected to the connecting body 526 by a spring (not shown in the figure). For example, a blind hole may be disposed on the connecting body 526, a connecting shaft capable of telescoping in the blind hole may be disposed at one end of the control button 524, and the end of the connecting shaft may be connected to the blind hole by a spring. The other end of the control button 524 may be exposed from the housing 510 by passing through the second sliding groove 511. There may be one or more grooves 527 and one or more corresponding protrusion blocks 525. In some embodiments, as shown in
In some embodiments, the housing 510 may include two grooves 527 disposed at both ends of the second sliding groove 511, respectively. When the two protrusion blocks 525 are respectively engaged with the two grooves 527, the second control part 520 (i.e., the first sub-control part 520-1 and the second sub-control part 520-2) may be located at the two ends of the second sliding groove 511, respectively. When the second control part 520 is located at the rear end of the second sliding groove 511, the inner clamp arm 210 may be in a folded state (or closed state). When the second control part 520 is located at the front end of the second sliding groove 511, the inner clamp arm 210 may be in the maximum expandable (or opened) state. The expandable state may depend on the state of the outer clamp arm 220. By only disposing two grooves 527 at both ends of the second sliding groove 511, it is more convenient for the operator to use on the basis of surgery needs, and it is possible to further prevent the operator from misoperation during the operation. In some alternative embodiments, a plurality of grooves 527 (e.g., 4, 5, 6) may be disposed on the housing 510, so that the second control part 520 may be restricted at a plurality of positions, which is beneficial to the operator for performing more precise control.
In some embodiments, the first sub-control part 520-1 and the second sub-control part 520-2 may be configured to be operated successively or simultaneously according to actual needs, thereby achieving precise control of the inner clamp arm 210 according to the needs of experiments or surgery. For example, during the mitral valve repair process, the first inner clamp arm 211 may be first controlled to clamp one side of the mitral valve, and then the second inner clamp arm 213 may be controlled to clamp the other side of the mitral valve. As another example, the second control part 520 may simultaneously control the first inner clamp arm 211 and the second inner clamp arm 213 to clamp the mitral valve. In some embodiments, in order to facilitate the operator to recognize the first sub-control part 520-1 and the second sub-control part 520-2, a mark may be added on the control button 524. The mark may include “left”, “right”, “L”, “R”, an arrow, or the like, or any combination thereof.
In some embodiments, the inner clamp arm control mechanism 500 may include a second indicating device 910. The second indicating device 910 may be configured to indicate an opening angle of the inner clamp arm 210 based on the position of the second control part 520.
In some embodiments, the opening angle of the inner clamp arm 210 may be an angle of the inner clamp arm 210 with respect to the closed state thereof. For example, the angle of the inner clamp arm 210 with respect to the closed state thereof may be an angle of the inner clamp arm 210 with respect to the supporting part 240 as shown in
In some embodiments, as shown in
In some embodiments, as shown in
In some embodiments, the second sensor 921 may include a distance measuring module. The distance measuring module may be configured to detect the distance between one end of the second sliding groove 511 and the corresponding second control part (such as the portion of the duct 521 protruding from the second sliding groove 511). This distance may reflect the position of the second control part 520. In some embodiments, the correspondence between the position of the second control part 520 and the opening angle of the inner clamp arm 210 may be obtained by experiments. The processor 923 may determine the opening angle of the inner clamp arm 210 based on the position of the second control part 520 and the correspondence between the position of the second control part 520 and the opening angle of the inner clamp arm 210. In some embodiments, the distance measuring module may include an ultrasonic ranging sensor, an infrared distance sensor, a Hall sensor, or the like, or any combination thereof.
In some embodiments, the opening angle of the inner clamp arm 210 (or referred to as third opening angle in short) may be an angle of the inner clamp arm 210 with respect to the outer clamp arm 220, that is, an angle of the first inner clamp arm 211 with respect to the corresponding first outer clamp arm 221 or an angle of the second inner clamp arm 213 with respect to the corresponding second outer clamp arm 223. It can be understood that the opening angle of the inner clamp arm 210 with respect to the outer clamp arm 220 may not be directly indicated in some embodiments, and may be determined by the opening angle of the inner clamp arm 210 and the opening angle of the outer clamp arm 220. In some embodiments, the second indicating device 910 may be configured to indicate the third opening angle of the inner clamp arm 210 according to the position of the second control part 520 and the opening angle of the outer clamp arm 220. The opening angle of the outer clamp arm 220 may be determined by the outer clamp arm control mechanism 400. In some embodiments, as shown in
In some embodiments, the inner clamp arm control mechanism 500 may include a second prompting device. The second prompting device may be configured to prompt the inner clamp arm 210 to reach a preset angle. Specifically, the preset angle of the inner clamp arm 210 may be a preset opening angle of the inner clamp arm 210 with respect to the closed state, or a preset opening angle of the inner clamp arm 210 with respect to the outer clamp arm 220. In some embodiments, the second prompting device may prompt the operator at a specific angle (such as 0°, 30°, 60°, 90°, etc.) in a visual, tactile, auditory manner (e.g., feedback), etc., or any combination thereof. By giving the operator visual, auditory, tactile feedback, the operator can be effectively prompted that the inner clamp arm 210 has reached the preset angle.
In some embodiments, the second prompting device may include one or more first contact parts and one or more second contact parts similar to the first prompting device 830. The first contact part(s) may be disposed on an outer circumferential surface of the second control part, and the second contact part(s) may be disposed inside the housing. When the second contact part(s) contacts the first contact part(s), respectively, the second prompting device may prompt the inner clamp arm 210 to reach the preset angle. In some embodiments, the second prompting device may include a prompting component. The prompting component may include, but is not limited to, speakers, light emitters, buzzers, vibrators, or the like, or any combination thereof. In some embodiments, the prompting component may be controlled by the processor 923. When the processor 923 detects that the inner clamp arm 210 reaches the preset opening angle, the processor 923 may control the prompting component to issue a prompt.
In some embodiments, the second control part 520 may include a first sub-control part and a second sub-control part for controlling the opening and closing of the first inner clamp arm 211 and the second inner clamp arm 213, respectively. The second indicating device 910 may include a first sub-indicating device and a second sub-indicating device for indicating the opening angle of the first inner clamp arm 211 (i.e., the first opening angle) and the opening angle of the second inner clamp arm 213 (i.e., the second opening angle), respectively. The second prompting device may include a first sub-prompting device and a second sub-prompting device for prompting the first inner clamp arm 211 and the second inner clamp arm 213 to reach preset angles, respectively.
The beneficial effects that the embodiments of the present disclosure may bring include but are not limited to: (1) accurately controlling the outer clamp arm and/or the inner clamp arm of the tissue clamping device; (2) quickly controlling the outer clamp arm of the tissue clamping device; (3) easily separating the control handle from the tissue clamping device; (4) making the operation of mitral valve repair more convenient, and the efficiency and the success rate of mitral valve repair improved; (5) quickly and intuitively obtaining an opening angle of the outer clamp arm and/or the inner clamp arm; (6) effectively preventing misoperation during the mitral valve repair; (7) making the control handle easy to manufacture. It should be noted that different embodiments may have different beneficial effects. In different embodiments, the possible beneficial effects may be any one or a combination of the above, or any other possible beneficial effects.
Having thus described the basic concepts, it may be rather apparent to those skilled in the art after reading this detailed disclosure that the foregoing detailed disclosure is intended to be presented by way of example only and is not limiting. Various alterations, improvements, and modifications may occur and are intended to those skilled in the art, though not expressly stated herein. These alterations, improvements, and modifications are intended to be suggested by this disclosure and are within the spirit and scope of the exemplary embodiments of this disclosure.
Moreover, certain terminology has been used to describe embodiments of the present disclosure. For example, the terms “one embodiment,” “an embodiment,” and “some embodiments” mean that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Therefore, it is emphasized and should be appreciated that two or more references to “an embodiment” or “one embodiment” or “an alternative embodiment” in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined as suitable in one or more embodiments of the present disclosure.
Further, it will be appreciated by one skilled in the art, aspects of the present disclosure may be illustrated and described herein in any of a number of patentable classes or context including any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof. Accordingly, aspects of the present disclosure may be implemented entirely hardware, entirely software (including firmware, resident software, micro-code, etc.) or combining software and hardware implementation that may all generally be referred to herein as a “module,” “unit,” “component,” “device,” or “system.” Furthermore, aspects of the present disclosure may take the form of a computer program product embodied in one or more computer-readable medium having computer readable program code embodied thereon.
Furthermore, the recited order of processing elements or sequences, or the use of numbers, letters, or other designations, therefore, is not intended to limit the claimed processes and methods to any order except as may be specified in the claims. Although the above disclosure discusses through various examples what is currently considered to be a variety of useful embodiments of the disclosure, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover modifications and equivalent arrangements that are within the spirit and scope of the disclosed embodiments. For example, although the implementation of various components described above may be embodied in a hardware device, it may also be implemented as a software-only solution, e.g., an installation on an existing server or mobile device.
Similarly, it should be appreciated that in the foregoing description of embodiments of the present disclosure, various features are sometimes grouped together in a single embodiment, figure, or description thereof to streamline the disclosure aiding in the understanding of one or more of the various embodiments. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed subject matter requires more features than are expressly recited in each claim. Rather, claim subject matter lie in less than all features of a single foregoing disclosed embodiment.
Number | Date | Country | Kind |
---|---|---|---|
202010390972.1 | May 2020 | CN | national |
202010581915.1 | Jun 2020 | CN | national |
This application is a continuation of International Application No. PCT/CN2020/128544, filed on Nov. 13, 2020, which claims priority of Chinese Patent Application No. 202010390972.1 filed on May 11, 2020 and Chinese Patent Application No. 202010581915.1 filed on Jun. 23, 2020, the entire contents of each of which are hereby incorporated by reference.
Number | Date | Country | |
---|---|---|---|
Parent | PCT/CN2020/128544 | Nov 2020 | US |
Child | 18051496 | US |