CN118000929A

CN118000929A - Handle bracket

Info

Publication number: CN118000929A
Application number: CN202211405787.0A
Authority: CN
Inventors: 黄青青; 林兴; 陈国明
Original assignee: Shanghai Microport Cardioflow Medtech Co Ltd
Current assignee: Shanghai Microport Cardioflow Medtech Co Ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2024-05-10

Abstract

The invention relates to a handle bracket which comprises a base, a guide rail assembly and at least one clamping mechanism, wherein the base is used for supporting the guide rail assembly and the clamping mechanism. The guide rail component is erected on the base. Each clamping mechanism comprises a sliding part and a clamping part, wherein the sliding parts are connected with the guide rail assembly in a sliding manner, the sliding parts can move along the guide rail assembly and can be locked relative to the guide rail assembly, and the clamping parts are used for clamping or loosening the handles. The handle bracket can stably support and position the handle, can realize the positioning of the handle to any angle in the circumferential direction and to any position in the axial direction, is convenient and accurate to operate and control, releases hands of a doctor, reduces the complexity of operation, shortens the operation time, and improves the stability and convenience of operation.

Description

Handle bracket

Technical Field

The invention relates to the technical field of medical appliances, in particular to a handle bracket.

Background

Interventional therapy of heart valves is a key therapeutic approach in the field of structural heart disease, and transcatheter valve repair techniques have been widely used and rapidly developed worldwide. The transcatheter valve repair technique is to deliver the implant to the right atrium via the femoral vein through the delivery system handle, then penetrate the septum into the left atrium, reach the heart valve and repair the native valve She Gage to treat reflux disease.

In the interventional operation process, a doctor is usually required to hold the handle and control the implantation position of the catheter or the implant through the handle, however, the doctor is required to hold the handle to control the catheter or the implant, which not only increases the complexity of the operation, but also easily causes the problem that the implantation precision of the catheter or the implant is affected due to unstable holding of the handle by the doctor.

Disclosure of Invention

Based on this, it is necessary to provide a handle bracket which can solve the problem that the implantation accuracy of the catheter or the implant is affected due to the instability of the handle held by a doctor.

In one aspect, the present application provides a handle bracket comprising:

A base;

The guide rail assembly is erected on the base; and

The clamping mechanism comprises sliding parts and clamping parts connected with the sliding parts, the sliding parts are in sliding connection with the guide rail assemblies, the sliding parts can move along the guide rail assemblies and can be locked relative to the guide rail assemblies, and the clamping parts are used for clamping or loosening handles.

The technical scheme of the application is further described as follows:

In one embodiment, the handle bracket comprises at least two clamping mechanisms, each clamping mechanism is arranged on the guide rail assembly at intervals, and each clamping mechanism is used for clamping different handles.

In one embodiment, the guide rail assembly comprises a cross beam and a sliding rail, the sliding rail is arranged on one side, close to the base, of the cross beam, the cross beam is connected with the base, and the extending direction of the cross beam is consistent with the extending direction of the sliding rail.

In one embodiment, the sliding portion includes:

the sliding piece is in sliding connection with the sliding rail;

The locking piece, locking piece movably set up in the slider, the locking piece can with crossbeam butt or separation, when locking piece with the crossbeam butt, the locking piece restriction the slider is relative the slide rail slides, when locking piece with the crossbeam separation, the slider can follow the slide rail slides.

In one embodiment, the slider comprises:

The sliding sleeve is sleeved on the cross beam, and the locking piece is movably arranged through the sliding sleeve and penetrates through the inner wall of the sliding sleeve;

the sliding block is arranged in the sliding sleeve and connected with the sliding sleeve, and the sliding block is in sliding connection with the sliding rail.

In one embodiment, the guide rail assembly further comprises a slider, the slider is fixedly connected with the cross beam, the sliding rail is in sliding fit with the slider, the sliding piece comprises a sliding sleeve, the sliding sleeve is sleeved on the cross beam and is connected with the sliding rail, and the locking piece movably penetrates through the sliding sleeve and penetrates through the inner wall of the sliding sleeve.

In one embodiment, the sliding block is provided with a sliding groove matched with the sliding rail, the groove wall of the sliding groove is provided with a rolling ball, and the rolling ball is matched with the sliding rail in a rolling way.

In one embodiment, the clamping portion includes:

the clamping sleeve is used for clamping the handle and limiting the axial movement of the handle relative to the clamping sleeve along the handle; and

The locking piece is movably arranged on the clamping sleeve in a penetrating mode and used for being abutted against or separated from the handle, when the locking piece is separated from the handle, the handle can circumferentially rotate in the clamping sleeve, and when the locking piece is abutted against the handle, the locking piece limits the circumferential rotation of the handle.

In one embodiment, the collet is provided with a receiving slot for receiving the handle.

In one embodiment, the jacket comprises a first clamping part, a second clamping part and a limiting piece, wherein the first end of the first clamping part is rotationally connected with the first end of the second clamping part, the second end of the first clamping part is detachably connected with the second end of the second clamping part through the limiting piece, when the second end of the first clamping part is connected with the second end of the second clamping part, the first clamping part and the second clamping part are jointly locked outside the handle, and when the second end of the first clamping part is separated from the second end of the second clamping part, the first clamping part and the second clamping part are loosened from the handle.

In one embodiment, the base comprises a bottom plate and at least two brackets, wherein the at least two brackets are arranged on the bottom plate at intervals along the extending direction of the guide rail assembly, and the brackets are connected with the guide rail assembly.

In one embodiment, the support and the bottom plate are provided with hollow structures.

In one embodiment, the height of each of the brackets increases gradually in a distal to proximal direction of the rail assembly; and/or, the width of the bottom plate in the direction perpendicular to the extending direction of the guide rail is gradually increased along the direction from the distal end to the proximal end of the guide rail assembly.

Above-mentioned handle bracket is through setting up the guide rail assembly on the base to through setting up the slider and the clamping part of being connected with the slider with guide rail assembly sliding connection, thereby in the operation, can be through the fixed handle of clamping part centre gripping, thereby restriction handle circumference rotates, unclamp the handle through the clamping part, can remove the circumference restriction of clamping part to the handle, make the handle can fix a position to arbitrary angle in circumference direction, thereby can accurately control the implantation direction of the pipe or the implant in the pipe of being connected with the handle through rotating the handle. And clamping part passes through sliding part and guide rail assembly sliding connection to through making the sliding part follow guide rail assembly and slide, can drive clamping part and handle axial displacement, thereby the axial position of adjustment handle, and then the implantation position of control pipe and implant, and compare in straight line actuating mechanism such as rack, chain or screw rod, the handle bracket of this embodiment can realize locating to optional position in axial direction to the handle through sliding part and guide rail assembly sliding fit, thereby can control the location that pipe and plant were gone into more accurately. In conclusion, the handle bracket can stably support and position the handle, can realize the positioning of the handle to any angle in the circumferential direction and to any position in the axial direction, is convenient and accurate to operate and control, liberates both hands of a doctor, reduces the complexity of operation, shortens the operation time, and improves the stability and convenience of operation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a handle bracket according to an embodiment;

FIG. 2 is a diagram of the mating relationship of the handle bracket and the handle shown in FIG. 1;

FIG. 3 is a schematic view of a rail assembly according to an embodiment;

FIG. 4 is a schematic view of another embodiment of a track assembly;

FIG. 5 is a schematic structural view of a clamping mechanism according to an embodiment;

FIG. 6 is a side view of the clamping mechanism shown in FIG. 5;

FIG. 7 is a partial schematic view of the portion A shown in FIG. 6;

FIG. 8 is a schematic view of a slider according to an embodiment;

FIG. 9 is a schematic diagram showing the cooperation of the clamping portion and the handle according to an embodiment;

FIG. 10 is a schematic view of a clamping portion according to another embodiment;

FIG. 11 is a schematic view of a structure of a clamping portion according to another embodiment;

FIG. 12 is a top view of the grip shown in FIG. 11;

FIG. 13 is a schematic view of an embodiment of transferring a first handle to a handle carrier;

FIG. 14 is a schematic view of an embodiment of a second handle and a third handle transferred to a handle carrier;

FIG. 15 is a schematic view of an embodiment for adjusting a position of a second handle in the circumferential direction of a jacket;

FIG. 16 is a schematic view of an embodiment of adjusting the second handle to a position in the axial direction of the cross-beam;

FIG. 17 is a schematic view of an embodiment of a third handle adjusted to a position in the circumferential direction of the collet;

fig. 18 is a schematic view of an embodiment of adjusting a third handle to deliver an implant into a position in the left ventricle.

Reference numerals illustrate:

10. A base; 11. a bottom plate; 101. a hollow structure; 12. a bracket; 20. a guide rail assembly; 21. a cross beam; 211. a receiving groove; 22. a slide rail; 30. clamping mechanism; 31. a sliding part; 311. a locking member; 312. a sliding sleeve; 313. a slide block; 3131. a chute; 3132. a ball; 32. a clamping part; 321. a locking member; 3211. a second pull rod; 3212. a second spring; 3213. a second limit part; 322. a jacket; 3221. a first clamping part; 3222. a second clamping portion; 3223. a rotating shaft; 3224. a limiting piece; 3225. a first pull rod; 3226. a first spring; 3227. a first limit part; 323. a receiving groove; 301. a first clamping mechanism; 302. the second clamping mechanism; 303. a third clamping mechanism; 41. a first handle; 42. a second handle; 43. a third handle; 51. a first length of conduit; 52. a second section of bend control conduit; 53. a third section of conduit.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

The term "distal" as used in this embodiment refers to the end remote from the handle carrier operator; "proximal" refers to the side that is proximate to the operator of the handle bracket. "axial" refers to a direction along a central axis of a component; "circumferential" refers to a direction of rotation about an "axial" direction.

In particular, an embodiment of the present application provides a handle bracket for supporting and manipulating a handle in a delivery system. In particular, referring to fig. 1 and 2, a handle bracket of an embodiment includes a base 10, a rail assembly 20, and at least one clamping mechanism 30, wherein the base 10 is configured to support the rail assembly 20 and the clamping mechanism 30. The guide rail assembly 20 is mounted on the base 10. Each clamping mechanism 30 includes a sliding portion 31 and a clamping portion 32, the sliding portion 31 is slidably connected to the rail assembly 20, the sliding portion 31 is capable of moving along the rail assembly 20 and locking relative to the rail assembly 20, the clamping portion 32 is connected to the sliding portion 31, and the clamping portion 32 is used for clamping or loosening the handle. Preferably, the clamping portion 32 and the sliding portion 31 are integrally formed. In other embodiments, the clamping portion 32 and the sliding portion 31 may be connected by welding, screw connection, glue bonding, or the like.

The handle bracket is provided with the guide rail assembly 20 on the base 10, and is provided with the sliding part 31 which is in sliding connection with the guide rail assembly 20 and the clamping part 32 which is connected with the sliding part 31, so that in operation, the handle can be clamped and fixed through the clamping part 32, the circumferential rotation of the handle is limited, the circumferential limitation of the clamping part 32 on the handle can be released through the clamping part 32, the handle can be positioned to any angle in the circumferential direction, and the implantation direction of an implant in a catheter or a catheter connected with the handle can be accurately controlled through rotating the handle. And clamping part 32 passes through sliding part 31 and guide rail assembly 20 sliding connection to through making sliding part 31 follow guide rail assembly 20 and slide, can drive clamping part 32 and handle along guide rail assembly 20 axial displacement, thereby the axial position on guide rail assembly 20 of adjustment handle, and then control the implantation position of pipe and implant, and compare in linear drive mechanism such as rack, chain or screw rod, the handle bracket of this embodiment passes through sliding part 31 and guide rail assembly 20 sliding fit, can realize the location to arbitrary position to the handle in guide rail assembly 20 axial direction, thereby can control the location that pipe and plant go into more accurately. In conclusion, the handle bracket can stably support and position the handle, can realize the positioning of the handle to any angle in the circumferential direction and to any position in the axial direction, is convenient and accurate to operate and control, liberates both hands of a doctor, reduces the complexity of operation, shortens the operation time, and improves the stability and convenience of operation.

Specifically, referring to fig. 1, a base 10 of an embodiment includes a base plate 11 and at least two brackets 12, where the at least two brackets 12 are disposed on the base plate 11 at intervals along an extending direction of a rail assembly 20, and the brackets 12 are connected to the rail assembly 20. In this embodiment, the base 10 includes two brackets 12, and the two brackets 12 are disposed at two ends of the bottom plate 11 along the extending direction of the rail assembly 20 at intervals. Preferably, the two brackets 12 are arranged parallel to each other and perpendicular to the bottom plate 11. The bracket 12 is fixedly connected to the base plate 11 by a connection member such as a screw, but it should be understood that in other embodiments, the bracket 12 and the base plate 11 may be fixed by welding or by bonding with glue, which is not limited herein. The bracket 12 and the bottom plate 11 may also be an integrally formed structure.

Further, the end of the support 12 far away from the bottom plate 11 is provided with a mounting groove matched with the guide rail assembly 20, preferably, the mounting groove may be a U-shaped groove, and the two sides of the mounting groove are provided with first holes, meanwhile, the guide rail assembly 20 is provided with second holes matched with the first holes, and the second holes are inserted into the first holes and the second holes through pin shafts, so that the guide rail assembly 20 is fixedly connected to the support 12.

Optionally, in an implementation, the bracket 12 and the bottom plate 11 are both provided with a hollowed-out structure 101. For example, through grooves or blind grooves are formed on the bracket 12 or the bottom plate, so that the weight of the bracket 12 can be effectively reduced, and the handle bracket is convenient to carry and use.

With continued reference to fig. 1, in this embodiment, the height of each bracket 12 increases gradually in the distal to proximal direction of the rail assembly 20, the height of the bracket 12 referring to the vertical distance of the bracket 12 from the end of the base plate 11 to the base plate 11. By gradually increasing the height of each bracket 12 along the distal end to the proximal end of the rail assembly 20, the rail assembly 20 can be inclined and form an acute angle with the base 10, so that the inclination angle of the handle is consistent with the approach angle of the catheter.

Alternatively, the bottom plate 11 of one embodiment is a flat plate, so as to ensure that the handle bracket can be stably placed on the operating table, preferably, the bottom plate 11 is rectangular in whole, and in other embodiments, the bottom plate 11 can be other shapes, which is not limited herein. Further, the width of the base plate 11 in the direction perpendicular to the rail extension direction gradually increases in the distal-to-proximal direction of the rail assembly 20. Since the height of the bracket 12 increases gradually in the distal to proximal direction of the rail assembly 20, the center of gravity of the proximal end of the handle bracket is greater than the center of gravity of the distal end of the handle bracket, and the greater the center of gravity, the easier the handle bracket is to be tilted, and by configuring the width of the bottom plate 11 to increase gradually in the distal to proximal direction of the rail assembly 20, the supporting stability of the bottom plate 11 to the proximal end of the handle bracket can be improved, avoiding the handle bracket from being tilted.

Referring to fig. 3, the rail assembly 20 includes a beam 21 and a rail 22, the rail 22 is disposed on the beam 21, the beam 21 is connected to the base 10, and an extending direction of the beam 21 is consistent with an extending direction of the rail 22. Specifically, the sliding rail 22 may be fixed to the beam 21 by a plurality of screws or other connectors, and it is understood that in other embodiments, the sliding rail 22 may be welded to the beam 21 or fixed by glue bonding, which is not limited herein. Further, two or more slide rails 22 may be provided, and all slide rails 22 are disposed on the cross beam 21 in parallel, so as to improve the stability of the cooperation between the sliding portion 31 and the slide rails 22.

Preferably, the sliding rail 22 is disposed at a side of the beam 21 near the base 10, i.e. the sliding rail 22 is disposed at the bottom of the beam 21, so as to prevent dust or foreign matters from falling onto the sliding rail 22, and further prevent the sliding smoothness of the sliding portion 31 along the sliding rail 22 from being affected by the dust or foreign matters. Preferably, a side of the beam 21 near the base 10 is provided with a containing groove 211 matched with the sliding rail 22, the sliding rail 22 is arranged in the containing groove 211, so that the dustproof effect on the sliding rail 22 is further improved, the whole structure of the guide rail assembly 20 is more compact, and the beam 21 can wrap the sliding rail 22 by arranging the sliding rail 22 in the containing groove 211, so that the connection stability of the sliding rail 22 and the beam 21 is improved, and the stability and balance of the clamping mechanism 30 are improved.

Referring to fig. 5 to 7, the sliding portion 31 of the clamping mechanism 30 includes a sliding member and a locking member 311, wherein the sliding member is slidably connected with the sliding rail 22, the locking member 311 is movably disposed on the sliding member, the locking member 311 can abut against or separate from the beam 21, and when the locking member 311 abuts against the beam 21, the locking member 311 limits the sliding member to slide relative to the sliding rail 22; when the locking piece 311 is separated from the cross beam 21, the sliding piece can slide along the slide rail 22.

Referring to fig. 7, the sliding portion 31 of an embodiment includes a sliding sleeve 312 and a sliding block 313, the sliding sleeve 312 is sleeved on the beam 21, the locking member 311 is movably disposed through the sliding sleeve 312 and penetrates through an inner wall of the sliding sleeve 312, the sliding block 313 is disposed in the sliding sleeve 312 and connected with the sliding sleeve 312, and the sliding block 313 is slidably connected with the sliding rail 22.

Referring to fig. 4, in another embodiment, the slider 313 may also be directly fixedly connected to the beam 21, the sliding rail 22 is slidably matched with the slider 313, the sliding member includes a sliding sleeve 312, the sliding sleeve 312 is sleeved on the beam 21 and is connected to the sliding rail 22, and the locking member 311 is movably sleeved on the sliding sleeve 312 and penetrates through an inner wall of the sliding sleeve 312, so that when the locking member 311 is separated from the beam 21, the sliding member can also slide along the beam 21, and further, the position of the clamping portion 32 and the handle in the axial direction of the beam 21 can be adjusted, and when the locking member 311 abuts against the beam 21, the locking of the sliding member relative to the beam 21 can also be realized, thereby fixing the position of the handle in the axial direction of the beam 21.

Further, referring to fig. 8, the sliding block 313 is provided with a sliding groove 3131 matched with the sliding rail 22, the groove wall of the sliding groove 3131 is provided with a rolling ball 3132, preferably, both side groove walls of the sliding groove 3131 are provided with a plurality of balls 3132, the balls 3132 are in rolling fit with the sliding rail 22, and the balls 3132 can convert the sliding friction between the sliding block 313 and the sliding rail 22 into rolling friction, so that the friction between the sliding block 313 and the sliding rail 22 is greatly reduced, and the sliding block 313 moves more smoothly, and the abrasion is reduced.

Referring to fig. 7, in an embodiment, the locking member 311 is a screw, the sliding sleeve 312 is provided with a threaded through hole, and the locking member 311 is inserted into the threaded through hole, so that the locking member 311 can be abutted against the cross beam 21 by screwing the locking member 311, thereby locking the sliding member and limiting the sliding member to slide along the cross beam 21. The locking member 311 is separated from the cross beam 21 by unscrewing the locking member 311, thereby releasing the slider so that the slider can slide along the cross beam 21.

It should be noted that there are many embodiments of the locking member 311, for example, a clip spring, a magnet, or other mechanical locking mechanism may be used to lock the sliding member on the beam 21. There is no limitation in this regard.

With continued reference to fig. 9, the clamp 32 includes a collet 322 and a lock 321. The collet 322 is used for clamping the handle and limiting the axial movement of the handle relative to the collet 322 along the handle, preferably, the handle is provided with a ring groove matched with the collet 322, and the collet 322 is clamped in the ring groove, so that the axial movement of the handle relative to the collet 322 along the handle is limited. The locking piece 321 is movably arranged on the collet 322 in a penetrating way and penetrates through the inner wall of the collet 322, the locking piece 321 is used for being abutted against or separated from the handle, when the locking piece 321 is separated from the handle, the handle can circumferentially rotate in the accommodating cavity, and when the locking piece 321 is abutted against the handle, the locking piece 321 limits the circumferential rotation of the handle.

Alternatively, referring to fig. 9, in one embodiment, the collet 322 is provided with a receiving groove 323 for receiving the handle, and preferably, the receiving groove 3232 may be a U-shaped groove to facilitate placement of the handle into the receiving groove 323. It will be appreciated that in other embodiments, the receiving slot 32 may have other shapes, so long as it is adapted to the handle, and is not limited herein. The locking piece 321 penetrates through the groove wall of the accommodating groove 323, at the beginning, the locking piece 321 is located outside the accommodating groove 323, at the moment, the handle can be placed into the accommodating groove 323 through the groove opening of the accommodating groove 323, interference between the handle and the locking piece 321 is avoided, then the handle is rotated circumferentially, the direction of the handle is adjusted, and finally the locking piece 321 stretches into the accommodating groove 323 and abuts against the handle, so that circumferential rotation of the handle can be limited, and meanwhile, radial movement of the handle can be limited, so that the handle is prevented from falling out of the accommodating groove 323.

Alternatively, referring to fig. 11, in another embodiment, the jacket 322 includes a first clamping portion 3221, a second clamping portion 3222, and a limiting member 3224, wherein a first end of the first clamping portion 3221 is rotatably connected to a first end of the second clamping portion 3222 through a rotation shaft 3223, and a second end of the first clamping portion 3221 is detachably connected to a second end of the second clamping portion 3222 through the limiting member 3224. When the second end of the first clamping portion 3221 is connected with the second end of the second clamping portion 3222, the first clamping portion 3221 and the second clamping portion 3222 enclose together to form a ring shape, so that the first clamping portion 3221 and the second clamping portion 3222 are hooped outside the handle together, and the handle is fixed in the radial direction and the axial direction of the handle. When the second end of the first clamping portion 3221 is separated from the second end of the second clamping portion 3222, the handle may be removed at this time.

Specifically, at the beginning, at the time of separating the second end of the first clamping portion 3221 from the second end of the second clamping portion 3222, the first clamping portion 3221 can be rotated by the rotating shaft 3223 to open the clamping sleeve 322, after the handle is placed into the second clamping portion 3222, the first clamping portion 3221 is rotated reversely to close the clamping sleeve 322, so that the first clamping portion 3221 and the second clamping portion 3222 are jointly hooped outside the handle, and the second end of the first clamping portion 3221 and the second end of the second clamping portion 3222 can be locked by the limiting member 3224 to fix the handle. When the handle needs to be taken out, the second end of the first clamping part 3221 and the second end of the second clamping part 3222 are loosened through the limiting piece 3224, so that the handle can be taken out.

Preferably, referring to fig. 12, the limiting member 3224 may include a first pull rod 3225 and a first spring 3226, the outer wall of the second clamping portion 3222 is provided with a first limiting portion 3227 and a first through hole penetrating through the inner walls of the first limiting portion 3227 and the second clamping portion 3222, the first clamping portion 3221 is provided with a second through hole (not shown) corresponding to the first through hole, the first pull rod 3225 is penetrated in the first through hole, the first spring 3226 is sleeved on the first pull rod 3225, one end of the first spring 3226 is abutted with the first limiting portion 3227, the other end of the first spring 3226 is abutted with the first pull rod 3225, so that the first pull rod 3225 can penetrate into the first through hole and the second through hole under the elastic force of the first spring 3226 to lock the second end of the first clamping portion 3221 and the second end of the second clamping portion 3222, when the handle is required to be taken out, the first pull rod 3225 is pulled outwards to resist the first elastic force of the first pull rod 3225 and withdraw the second spring 3221 from the first through hole, and the first clamping portion 3221 can be disengaged from the first clamping portion 3221.

It should be noted that, in other embodiments, the manner in which the limiting member 3224 locks the second end of the first clamping portion 3221 and the second end of the second clamping portion 3222 is many, such as a screw, a clip spring, a magnet, or other mechanical locking mechanism, which is not limited herein.

Further, there are many ways in which the locking member 321 limits the handle from rotating circumferentially in the collet 322, for example, as shown in fig. 9 and 11, the locking member 321 may be a screw, the lock sleeve is provided with a threaded through hole, and the locking member 321 is inserted into the threaded through hole, so that the locking member 321 can be abutted against the handle by screwing the locking member 321, thereby limiting the handle from rotating circumferentially. The locking member 321 is separated from the handle by unscrewing the locking member 321, thereby releasing the circumferential lock on the handle.

In addition, in many embodiments, for example, as shown in fig. 10, the locking member 321 may include a second pull rod 3211 and a second spring 3212, the outer wall of the collet 322 is provided with a second limiting portion 3213 and a third through hole penetrating through the second limiting portion 3213 and the inner wall of the collet 322, the second pull rod 3211 is inserted into the third through hole, the second spring 3212 is sleeved on the second pull rod 3211, one end of the first spring 3226 abuts against the second limiting portion 3213, and the other end abuts against the second pull rod 3211, so that the second pull rod 3211 can pass through the third through hole under the action of the elastic force of the second spring 3212 and always keeps abutting against the handle, thereby limiting the circumferential rotation of the handle, when the handle is circumferentially adjusted, the second pull rod 3211 is pulled outwards to separate the second pull rod 3211 against the elastic force of the spring, at this time, after the handle is circumferentially adjusted, the second pull rod 3211 is released, and the second pull rod 3211 can pass through the third through hole under the action of the elastic force of the second spring 3212 and then lock with the handle.

It should be noted that, the locking member 321 may also adopt a clip spring, a magnet or other mechanical locking mechanism to realize the circumferential locking of the handle, which is not limited herein.

With continued reference to FIG. 2, optionally, in one embodiment, the handle bracket includes at least two clamping mechanisms 30, each clamping mechanism 30 being spaced apart from the rail assembly 20, each clamping mechanism 30 being configured to clamp a different handle. Referring to fig. 14, for example, in the present embodiment, the handle bracket is provided with three clamping mechanisms 30, namely, a first clamping mechanism 301, a second clamping mechanism 302, and a third clamping mechanism 303, wherein the first clamping mechanism 301 is used for clamping the first handle 41 of the conveying system, and the first handle 41 is used for manipulating the first section of the catheter 51. The second clamping mechanism 302 is used for clamping the second handle 42 of the conveying system, and the second handle 42 is used for controlling the second section of the bending control duct 52 penetrating through the first section of duct 51. The third handle 43 is used to manipulate a third length of tubing 53 that is threaded into the bending-control tubing and used to connect the implant. It will be appreciated that the function and clamping sequence of the handles is not limited to this embodiment, but may be adjusted as desired in other embodiments, and is not limited thereto. Further, the first clamping mechanism 301, the second clamping mechanism 302 and the third clamping mechanism 303 are independently and separately disposed on the guide rail assembly 20, so that the degree of freedom of the first handle 41, the degree of freedom of the second handle 42 and the degree of freedom of the third handle 43 can be controlled independently and are not interfered with each other. It will be appreciated that in other embodiments, the number of clamping mechanisms 30 is not limited to three, but may be two, four or more, and independent control of the degrees of freedom of the multiple handles can be achieved by providing multiple independent clamping mechanisms 30 on the rail assembly 20.

Specifically, referring to fig. 13, in the operation, after the first catheter section 51 is sent to the heart pointing position of the human body, the operator can transfer the first handle 41 connected with the first catheter section 51 to the first clamping mechanism 301, the clamping sleeve 322 is matched with the annular groove of the first handle 41, the clamping sleeve 322 can limit the handle in the axial direction of the handle, the handle is fixed by tightening the locking piece 321 to be in pressing contact with the handle, and the circumferential locking of the handle in the clamping sleeve 322 is realized.

Referring to fig. 14, after the first length of catheter 51 has been channeled, the second handle 42 and the third handle 43 respectively carry the second length of bend control catheter 52 and the third length of catheter 53, which is attached to the implant, together to a designated location within the body, and the second handle 42 is moved to the second clamping mechanism 302, the third handle 43 is moved to the third clamping mechanism 303, and the respective locking members 321 are tightened to secure the handles.

Referring to fig. 15, the doctor uses ultrasound to observe the position of the second section of bending control catheter 52, the operator unscrews the locking piece 321, rotates the second handle 42 manually in the collet 322, and then drives the distal end of the second section of bending control catheter 52 to adjust in the position in the first plane, the second handle 42 can rotate at 360 degrees in the collet 322 at will, and after reaching the ideal position, the locking piece 321 is screwed, so that the limitation of the second handle 42 in the circumferential direction on the collet 322 is completed.

Referring to fig. 16, adjustment of the distal end of second length bend control conduit 52 in the second plane is accomplished by manually pushing movement of second clamping mechanism 302 in the axial direction of rail assembly 20 by controlling a bend control knob (not shown) of second handle 42 and unlocking latch 311 of second clamping mechanism 302. The second clamping mechanism 302 can be adjusted at will in the range of measurement, and after the second clamping mechanism 302 reaches the ideal position, the locking piece 311 of the second clamping mechanism 302 completes the limit of the handle in the axial direction on the beam 21.

Referring to fig. 17, when the second section of the bending control catheter 52 is positioned vertically above the mitral valve annulus, the doctor unscrews the locking element 321 of the third clamping mechanism 303, and the third handle 43 can rotate freely within the collet 322 by 360 ° to drive the distal end of the third section of the catheter 53 to connect the implant (not shown), observe the position of the implant and the valve leaflet under ultrasound, and screw the locking element 321 of the third clamping mechanism 303 when the implant is positioned vertically above the valve leaflet.

Referring to fig. 18, the locking member 311 of the third chuck 303 is opened, the third chuck 303 is manually pushed to push the implant from the left atrium to the left ventricle, and the position of the third chuck 303 in the axial direction of the rail assembly 20 is arbitrarily adjusted within the range due to the sliding fit of the rail assembly 20 with the third chuck 303, so that the third handle 43 can be quickly pushed to the target position.

After the operation is finished, the first clamping mechanism 301, the first clamping mechanism 302 and the locking piece 321 on the first clamping mechanism 303 are unlocked, the handles are unlocked from the clamping mechanism 30, and the catheter sections are withdrawn from the body, so that the operation is finished.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Claims

1.A handle bracket, comprising:

A base;

The guide rail assembly is erected on the base; and

2. The handle bracket of claim 1, wherein the handle bracket comprises at least two clamping mechanisms, each clamping mechanism being disposed at a spaced apart relationship to the rail assembly, each clamping mechanism being configured to clamp a different handle.

3. The handle bracket of claim 1, wherein the rail assembly comprises a cross beam and a slide rail, the slide rail is disposed on a side of the cross beam near the base, the cross beam is connected with the base, and an extension direction of the cross beam is consistent with an extension direction of the slide rail.

4. The handle bracket of claim 1, wherein the sliding portion comprises:

the sliding piece is in sliding connection with the sliding rail;

5. The handle bracket of claim 4, wherein the slider comprises:

6. The handle bracket of claim 4, wherein the rail assembly further comprises a slider fixedly connected to the cross member, the slide rail is slidably engaged with the slider, the slider comprises a slide sleeve, the slide sleeve is sleeved on the cross member and connected to the slide rail, and the locking member is movably disposed through the slide sleeve and penetrates through an inner wall of the slide sleeve.

7. A handle bracket according to claim 5 or 6, wherein the slide is provided with a slide groove cooperating with the slide rail, the groove wall of the slide groove being provided with a rollable ball, which ball is in rolling cooperation with the slide rail.

8. The handle bracket of claim 1, wherein the grip portion comprises:

9. The handle bracket of claim 8, wherein the collet is provided with a receiving slot for receiving the handle.

10. The handle bracket of claim 8, wherein the collet comprises a first clamping portion, a second clamping portion and a limiting member, wherein a first end of the first clamping portion is rotatably connected with a first end of the second clamping portion, a second end of the first clamping portion is detachably connected with a second end of the second clamping portion through the limiting member, the first clamping portion and the second clamping portion are jointly hooped outside the handle when the second end of the first clamping portion is connected with the second end of the second clamping portion, and the first clamping portion and the second clamping portion are released when the second end of the first clamping portion is separated from the second end of the second clamping portion.

11. The handle bracket of claim 1, wherein the base comprises a bottom plate and at least two brackets, the at least two brackets being disposed on the bottom plate at intervals along the extending direction of the rail assembly, the brackets being connected to the rail assembly.

12. The handle bracket of claim 11, wherein the bracket and the base plate are each provided with a hollowed-out structure.

13. The handle bracket of claim 11, wherein the height of each of the brackets increases gradually in a distal to proximal direction of the rail assembly; and/or, the width of the bottom plate in the direction perpendicular to the extending direction of the guide rail is gradually increased along the direction from the distal end to the proximal end of the guide rail assembly.