Recycling device for recycling connecting wires and heart valve prosthesis delivery device

Abstract

This application relates to the technical field of medical devices, and provides a recovery device for recovering connection lines and a cardiac valve prosthesis delivery device. Among them, the recovery device for recovering connection lines includes: a recovery body, a rod assembled on the recovery body, and a first single-rotating body for winding the connection lines; the first single-rotating body is rotatably arranged on the rod and can axially move along with the rod; the recovery body is provided with a receiving groove, the rod penetrates through the receiving groove, and the first single-rotating body can move in the receiving groove along with the rod; a stop structure for preventing the connection lines from slipping off the first single-rotating body is provided on the recovery body. Through the technical solution of this application, during the process of recovering the connection lines, the risk of the connection lines falling off the first single-rotating body can be reduced, and the convenience of operation for medical staff can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and more particularly, to a recovery device for recovering a connecting wire and a cardiac valve prosthesis delivery device. Background Art

[0002] Cardiac valve disease is one of the most common heart diseases in China. In recent years, with the development of population aging, valvular degenerative changes (including calcification and mucoid degeneration, etc.) and metabolic disorder-related valvular damage have also been increasing in China. Currently, minimally invasive medical implantation of cardiac valve prostheses provides a new treatment method with less trauma, fewer complications, and faster postoperative recovery for medical staff.

[0003] During the process of valve treatment, a delivery device is required to deliver, control the shape, and release a cardiac valve prosthesis. However, when medical staff operate the delivery device, especially during the process of recovering the connecting wire, the connecting wire may fall off and form a single rotating body, resulting in the failure of recovering the cardiac valve prosthesis. Summary of the Invention

[0004] The technical problem to be solved by the present application is to provide a recovery device for recovering a connecting wire and a cardiac valve prosthesis delivery device, which can reduce the risk of the connecting wire slipping off from the first single rotating body during the process of recovering the connecting wire, and improve the convenience of operation for medical staff.

[0005] To solve the above technical problem, the present application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a recovery device for recovering a connecting wire, including: a recovery body, a rod assembled on the recovery body, and a first single rotating body for winding the connecting wire; the first single rotating body is rotatably arranged on the rod and can axially move along with the rod; the recovery body is provided with a receiving groove, the rod penetrates through the receiving groove, and the first single rotating body can move in the receiving groove along with the rod; a stop structure is provided on the recovery body for preventing the connecting wire from slipping off the first single rotating body.

[0007] As an implementation manner, the stop structure includes a stop member and a groove provided on the recovery body, the groove is communicated with the receiving groove, and the stop member is embedded in the groove and partially protrudes into the receiving groove.

[0008] As an implementation manner, the first single rotating body includes a first wire winding portion for winding the connecting wire, and the stop member is arranged in contact with the first wire winding portion.

[0009] As an implementation manner, the stop member is a foam member or a silicone member.

[0010] As an implementation manner, the recovery device includes a flange located at one end of the rod body. The flange is fixedly connected to the rod body. The recovery body includes a cover body and a recovery handle detachably connected to the cover body. The cover body is provided with the accommodation groove and the groove. One side of the cover body facing the flange is provided with a first connection hole through which the rod body penetrates. The diameter of the flange is larger than the diameter of the first connection hole.

[0011] As an implementation manner, a telescopic member is further provided between the flange and the cover body. Two ends of the telescopic member are respectively abutted against the flange and the cover body, and the telescopic member is in a pre-compressed state.

[0012] As an implementation manner, the recovery body further includes a support member. The support member is located in the accommodation groove and is connected to the cover body. The support member is provided with the groove for accommodating the stopper.

[0013] As an implementation manner, the support member is provided with a notch. The groove is recessed at the position of the notch, and the first single-rotating body is embedded into the notch.

[0014] As an implementation manner, the first single-rotating body can rotate in one-way wire-winding relative to the rod body. The first single-rotating body includes a one-way rotating member and a first operating member cooperatively connected to the one-way rotating member. The one-way rotating member is installed on the rod body, and the first operating member is assembled on the rod body through the one-way rotating member.

[0015] As an implementation manner, the first operating member includes a first operating portion protruding from the recovery body and the first wire-winding portion connected to the first operating portion. The first wire-winding portion is provided with a fixing portion for connecting a connecting wire.

[0016] As an implementation manner, the first operating member is provided with an installation groove penetrating through the first operating portion and the first wire-winding portion. The one-way rotating member is located in the installation groove.

[0017] As an implementation manner, the one-way rotating member is a one-way bearing.

[0018] As an implementation manner, the recovery device includes a stopper for preventing the one-way rotating member from slipping off. The stopper is arranged at the opening position of the installation groove.

[0019] As an implementation manner, the recovery device further includes a second single-rotating body and a third single-rotating body. The second single-rotating body and the third single-rotating body are both located on the rod body and can rotate in one-way wire-winding relative to the rod body respectively.

[0020] As an implementation manner, two clamping grooves are spaced on the outer surface of the rod body. The recovery device further includes two clamping members, which are correspondingly matched with the clamping grooves. One of the clamping members is attached to the third single-rotating body, and the other clamping member is attached to the stop block.

[0021] As an implementation manner, the first single-rotating body, the second single-rotating body, and the third single-rotating body are arranged in sequence along the axial direction of the rod body. The second single-rotating body includes a second operating member, and the third single-rotating body includes a third operating member. An insertion groove for inserting into the second operating member is provided on one side of the first operating member away from the stop structure; an insertion groove for inserting into the third operating member is provided on one side of the second operating member away from the stop structure.

[0022] As an implementation manner, the recovery device includes a rotating cap that can drive the rod body to rotate and move axially perpendicular to the recovery handle. The rotating cap is located at the opposite end of the flange.

[0023] As an implementation manner, the recovery device further includes a positioning portion provided on the rotating cap for cooperating with the cover body to prevent the rod body from accidentally rotating; the positioning portion includes a locking gear, and the cover body is provided with a locking tooth groove adapted to the locking gear.

[0024] As an implementation manner, the cover body includes a convex cylinder extending along the extending direction of the rod body and protruding toward the rotating cap side. The locking tooth groove is provided on the inner wall of the convex cylinder.

[0025] As an implementation manner, the convex cylinder is provided with a second connection hole, and the second connection hole and the first connection hole are located on the same axis. The rod body passes through the first connection hole and the second connection hole and is threadedly connected to the rotating cap.

[0026] In a second aspect, the present application provides a heart valve prosthesis delivery device, including a handle and the recovery device for recovering a connecting line provided in the first aspect. The recovery body is provided at the proximal end of the handle.

[0027] As an implementation manner, the recovery body is detachably connected to the handle.

[0028] The technical solution of the present application has the following beneficial effects:

[0029] The first single rotator can rotate relative to the rod body to wind the connecting line. A receiving groove is provided in the recovery body, and the rod body penetrates through the receiving groove. The first single rotator is located in the receiving groove and can move axially along with the rod body. A stop structure for preventing the connecting line from falling off the first single rotator is provided on the recovery body. When the rod body moves in the axial direction perpendicular to the recovery body to lock or unlock, it will drive the first single rotator to move synchronously. There will be moving spaces on both sides of the first single rotator in the receiving groove. Through the stop structure, the risk of the connecting line falling off the first single rotator can be reduced, thereby improving the operation convenience and also increasing the recovery success rate of the connecting line. Brief Description of the Drawings

[0030] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0031] Figure 1 Structural schematic diagram of the recovery device provided by the embodiment of the present application;

[0032] Figure 2 Top view of the recovery device provided by the embodiment of the present application;

[0033] Figure 3 For Figure 2 Cross-sectional structural schematic diagram in the A-A direction of

[0034] Figure 4 Exploded structural schematic diagram of the recovery device provided by the embodiment of the present application;

[0035] Figure 5 Exploded structural schematic diagram of the recovery device provided by the embodiment of the present application from different perspectives;

[0036] Figure 6 Exploded structural schematic diagram of the recovery device provided by the embodiment of the present application from another perspective;

[0037] Figure 7 Exploded structural schematic diagram of the recovery device provided by the embodiment of the present application from another perspective;

[0038] Figure 8 Partial exploded structural schematic diagram of the recovery device provided by the embodiment of the present application;

[0039] Figure 9 Structural schematic diagram of the conveying device provided by the embodiment of the present application.

[0040] Icons: 1 - Recycling body; 11 - Recycling handle; 111 - Threading channel; 12 - Cover body; 121 - Threading hole; 122 - Movable opening; 123 - First connection hole; 124 - Second connection hole; 125 - Convex cylinder; 126 - Locking tooth groove; 127 - Accommodating groove; 128 - Groove; 2 - First single rotating body; 21 - Unidirectional rotating part; 22 - First operating part; 221 - Fixed part; 222 - First winding part; 223 - Insertion slot; 224 - First operating portion; 225 - Mounting groove; 226 - Second through hole; 3 - Rod body; 31 - Flange; 32 - Clamping groove; 4 - Clamping part; 5 - Telescopic part; 6 - Rotating cap; 61 - Positioning part; 7 - Connecting line; 8 - Support part; 81 - Notch; 9 - Stopper; 10 - Conveying device; 101 - Handle; 102 - Outer tube; 13 - Stopping part; 14 - Second operating part; 141 - Second winding part; 15 - Third operating part; 151 - Third winding part. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0042] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, the term "distal end" refers to the end of the component in the handle close to the heart tissue, and the term "proximal end" refers to the end of the handle close to the operator. The terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0043] In a first aspect, an embodiment of the present application provides a recycling device for recycling a connecting line. The recycling device is provided with a stopping structure, which can reduce the risk of the connecting line 7 falling off, improve the recycling success rate of the connecting line 7, and facilitate the operation of medical staff.

[0044] As Figure 9 shown, in addition, the recycling device is installed at the proximal end of the handle 101, which is convenient for medical staff to hold and operate. And on the one hand, the recycling device can be used to separately control the connecting line 7 in sequence, so that the connecting line 7 tightens the heart valve prosthesis, and further enables the heart valve prosthesis to be re-accommodated into the conveying device 10; on the other hand, it can also control the release process of the heart valve prosthesis to improve the accuracy of implanting the heart valve prosthesis; on the other hand, after the heart valve prosthesis is released, it can be recycled through the connecting line 7.

[0045] As Figure 1 、 3As shown in FIGS. 7 and 8, the recycling device includes a recycling body 1 and a rod body 3 assembled inside the recycling body 1. A first single rotating body 2 is provided on the rod body 3. The first single rotating body 2 can rotate relative to the rod body 3 to wind the connection line 7 around the first single rotating body 2, thereby achieving the purpose of recycling the connection line 7. The recycling body 1 is provided with a receiving groove 127. The rod body 3 passes through the receiving groove 127, and the first single rotating body 2 is located in the receiving groove 127. The rod body 3 can move relative to the recycling body 1 along the axial direction of the rod body 3 to lock or unlock between the rod body 3 and the recycling body 1, and at the same time drive the first single rotating body 2 to move synchronously. This requires that there is a moving space on both sides of the first single rotating body 2. The recycling device further includes a stop structure provided on the recycling body 1. The stop structure can prevent the connection line 7 from falling off the first single rotating body 2, enabling the first single rotating body 2 to smoothly recycle the connection line 7, improving the recycling success rate of the connection line 7, and further improving the convenience of operation for medical staff.

[0046] Optionally, the first single rotating body 2 can rotate relative to the rod body 3 to recycle the connection line 7 connected thereto. Of course, the rod body 3 can also rotate relative to the recycling body 1 to drive the first single rotating body 2 to rotate, realizing the recycling and unwinding of the connection line 7.

[0047] Optionally, when the rod body 3 is perpendicular to the axis of the recycling body 1 in the horizontal direction, the recycling body 1 is coaxially arranged with the handle 101, and the rod body 3 needs to move along the direction perpendicular to the axis of the recycling body 1 to lock or unlock between the rod body 3 and the recycling body 1.

[0048] As Figure 3 、 4 、6 and 8 show, as an implementation manner, the stop structure includes a stop member 13 and a groove 128 provided on the recycling body 1. The groove 128 is communicated with the receiving groove 127. The stop member 13 is embedded in the groove 128 and partially protrudes into the receiving groove 127, so that the stop member 13 can contact the first single rotating body 2, improving the tightness between the stop member 13 and the first single rotating body 2, reducing the gap generated between the first single rotating body 2 and the recycling body 1, and thus effectively reducing the risk of the connection line 7 falling off the first single rotating body 2.

[0049] Optionally, the stop member 13 can be fixedly connected to the groove 128 by gluing. Of course, it can also be through interference fit, that is, the stop member 13 is embedded in the groove 128.

[0050] As Figure 3 、 6As shown in FIGS. 6 and 7, as an implementation manner, the first single rotator 2 includes a first wire winding portion 222 for winding the connection wire 7. The stopper 13 is arranged in contact with the first wire winding portion 222. When the connection wire 7 is wound around the first wire winding portion 222, due to the contact between the first wire winding portion 222 and the stopper 13, the friction between the first wire winding portion 222 and the stopper 13 is increased, and the risk of the connection wire 7 falling off from the first wire winding portion 222 can be reduced.

[0051] As an implementation manner, the stopper 13 is a foam member or a silicone member. Since both the foam member and the silicone member have flexibility, therefore, using a flexible member can make the stopper 13 fit more closely with the first wire winding portion 222, thereby reducing the risk of the connection wire 7 falling off from the first wire winding portion 222.

[0052] As Figure 1 and 8 As shown in FIGS. 8 and 9, as an implementation manner, the recycling device includes a flange 31 at one end of the rod body 3. The flange 31 is fixedly connected to the rod body 3. The recycling body 1 includes a cover body 12 and a recycling handle 11 that can be detachably connected to the cover body 12. An accommodation groove 127 is provided in the cover body 12, and a groove 128 is provided on the cover body 12. This groove 128 can be a first sub-groove. The groove 128 is in communication with the accommodation groove 127. One side of the cover body 12 facing the flange 31 is provided with a first connection hole 123. The rod body 3 can pass through the first connection hole 123 and can rotate relative to the cover body 12, and the diameter of the flange 31 is greater than the diameter of the first connection hole 123, thereby preventing the rod body 3 from falling off from the position of the first connection hole 123.

[0053] Optionally, the flange 31 and the rod body 3 can be integrally formed or can be threadedly connected.

[0054] As Figures 2 to 4 As shown in FIGS. 10 and 11, optionally, the cover body 12 is provided with a plurality of movable openings 122. The accommodation groove 127 is in communication with the movable openings 122. The number of the movable openings 122 corresponds to the number of the single rotators. The first operation portion 224, the second operation portion, and the third operation portion all protrude partially from the movable openings 122, which is convenient for medical staff to drive the operation portions respectively, and the other parts of each operation portion are all located in the accommodation groove 127.

[0055] As Figure 6 As shown in FIGS. 12 and 13, optionally, the recycling body 1 further includes a recycling handle 11. The recycling handle 11 is provided with a wire threading channel 111 for guiding the connection wire 7. One side of the distal end of the cover body 12 is also provided with three wire threading holes 121. The three wire threading holes 121 are all in communication with the accommodation groove 127. Each connection wire 7 passes through the wire threading channel 111 and respectively passes through the corresponding wire threading holes 121, and is correspondingly connected to the fixing portions 221 on the three wire winding portions in the accommodation groove 127.

[0056] As Figure 1 shown, as an implementation manner, a telescopic member 5 is further provided between the flange 31 and the cover body 12. Both ends of the telescopic member 5 are respectively abutted against the flange 31 and the cover body 12, and the telescopic member 5 is in a pre-compressed state. Thus, when the recycling device is in an unused state, the elastic force generated by the telescopic member 5 enables the locking gear to always engage with the locking tooth groove 126, restricting the rotation of the rod body 3 relative to the cover body 12 and reducing the situation where medical staff accidentally operate and prematurely release the heart valve prosthesis.

[0057] Optionally, after the medical staff finishes using it, the telescopic member 5 will return to its initial state through its own elastic force, that is, restricting the rotation of the rod body 3 relative to the cover body 12, and at the same time, it can also reduce the problem of accidental operation.

[0058] Optionally, the telescopic member 5 can be a spring. When the rod body 3 rotates relative to the cover body 12 and the rod body 3 synchronously drives the first single-rotating body 2, the second single-rotating body, and the third single-rotating body to take in or pay out the wire, the medical staff directly pushes the flange 31 towards the direction of the rotating cap 6, and the provided thrust is greater than the elastic force of the telescopic member 5. At the same time, the locking gear is separated from the locking tooth groove 126. At this time, by driving the rod body 3 to rotate through the rotating cap 6, the operation of taking in or paying out the wire is realized. Since the rod body 3 needs to rotate or be stationary relative to the recycling body 1 during the operation process, during the engagement or separation of the locking gear and the locking tooth groove 126, the rod body 3 moves relative to the recycling body 1, and the first single-rotating body 2 moves synchronously. During this process, the connecting wire 7 may fall off the first wire winding part 222 and fall into the gap between the first wire winding part 222 and the recycling handle 11, resulting in the inability to recycle the connecting wire 7. By providing a stop structure to stop the connecting wire 7, the connecting wire 7 is prevented from falling off.

[0059] Of course, in some cases, the rotating cap 6 can also be directly pulled out from the convex cylinder 125 to separate the locking gear from the locking tooth groove 126, and by driving the rod body 3 to rotate through the rotating cap 6, the operation of taking in or paying out the wire is realized.

[0060] As Figure 3 、 4 and 6 show, as an implementation manner, the recycling body 1 includes a support member 8. When the cover body 12 is connected to the recycling body 1, the support member 8 is located in the accommodation groove 127 and is fixedly connected to the cover body 12 by bolts. Another part of the support member 8 is provided with a groove 128, so as to cooperate with the groove 128 on the cover body 12 for fixing the stop member 13. The groove 128 on the support member 8 can be called the second sub-groove.

[0061] As Figure 6 and 8As shown, optionally, the groove 128 is a circular groove, which is composed of two parts. One part is arranged on the cover 12, and the other part is arranged on the support member 8. By corresponding the two parts of the groove 128, the corresponding parts of the stopper 13 are clamped respectively to improve the stability of the stopper 13 in the groove 128.

[0062] In addition, the cover 12 is detachably connected to the support member 8, which also facilitates the installation of the first operating member 22, the second operating member 14 and the third operating member 15 in the receiving groove 127 in the cover 12. If the cover 12 and the support member 8 are integrally formed, it is not convenient to install the first operating member 22, the second operating member 14 and the third operating member 15 in the receiving groove 127.

[0063] As Figure 6 and 7 As shown, as an implementation manner, a notch 81 is provided on the support member 8, and the groove 128 is recessed at the position of the notch 81, that is, the second sub-groove is recessed from the notch 81 toward the retraction handle 11. The first single-rotating body 2 is embedded in the notch 81. Specifically, the notch 81 is adapted to the first winding portion 222, so that the first winding portion 222 can be embedded in the notch 81. On the one hand, the support member 8 plays a supporting role for the first operating member 22. On the other hand, the groove 128 is provided on the support member 8, so that the stopper 13 can be embedded in the groove 128 to prevent the connecting wire 7 connected to the first operating member 22 from falling off during the wire winding or unwinding process, resulting in the failure of the wire winding or unwinding function.

[0064] Optionally, the wire winding or unwinding process further includes the process of the locking gear meshing with or separating from the locking tooth groove 126. During the meshing and separating processes, the rod body 3 also moves along its axial direction. During the movement, the connecting wire 7 on the first winding portion 222 may fall off the first winding portion 222, resulting in the situation of "jumping wire". By embedding the stopper 13 in the grooves 128 of the support member 8 and the cover 12 respectively, the risk of the connecting wire 7 falling off from the first winding portion 222 can be reduced.

[0065] As Figure 6 As shown, as an implementation manner, the first single-rotating body 2 can rotate in one-way for wire winding relative to the rod body 3. The first single-rotating body 2 includes a one-way rotating member 21 and a first operating member 22 connected to the one-way rotating member 21. The one-way rotating member 21 is installed on the outer surface of the rod body 3 and can rotate in one-way relative to the rod body 3, that is, it can only rotate in a certain direction relative to the rod body 3. If it rotates in the opposite direction, it is in a locked state and cannot rotate. At the same time, the first operating member 22 is connected to the one-way rotating member 21 and is assembled on the rod body 3 through the one-way rotating member 21, so that it is convenient for medical staff to drive the first operating member 22, so that the first operating member 22 and the one-way rotating member 21 can rotate in one-way relative to the rod body 3 synchronously, improving the convenience of medical staff's operation.

[0066] Optionally, the one-way wire-receiving rotation means that the first single-rotating body 2 can only rotate relative to the rod body 3 in one direction and cannot rotate in the opposite direction. For example, the first single-rotating body 2 can be set to rotate relative to the rod body 3 in the clockwise direction and cannot rotate in the counterclockwise direction; or, the first single-rotating body 2 can be set to rotate relative to the rod body 3 in the counterclockwise direction and cannot rotate in the clockwise direction. The specific rotation direction of the first single-rotating body 2 relative to the rod body 3 can be adjusted according to actual use, and the embodiments of the present application do not make specific limitations.

[0067] Such as Figure 4 and 7 As shown, as an implementation manner, the first operating member 22 includes a first operating portion 224 protruding from the recovery body 1. The first operating portion 224 is disc-shaped. At the same time, the first operating portion 224 also protrudes from the recovery body 1, so as to facilitate the medical staff to operate it. The first operating member 22 further includes a first wire-winding portion 222 connected to the first operating portion 224. The fixing portion 221 is located on the first wire-winding portion 222, so that the connection wire 7 is connected to the first operating member 22 through the fixing portion 221, and at the same time, it can also be wound around the first wire-winding portion 222.

[0068] Optionally, the first wire-winding portion 222 is a cylindrical structure and is coaxially arranged with the first operating portion 224. One end of the first wire-winding portion 222 is fixedly connected to the first operating portion 224, and the other end protrudes along the axial direction of the first operating portion 224, so as to provide a winding space for the connection wire 7 to be wound around the outer surface of the first wire-winding portion 222.

[0069] Optionally, the first wire-winding portion 222 and the first operating portion 224 are integrally formed.

[0070] Optionally, the first operating portion 224 is a disc-shaped structure, so as to further facilitate the medical staff to operate it with their fingers and improve the operation convenience.

[0071] As a possible implementation manner, the first operating portion 224 can also be a polygonal structure, such as a pentagon or a hexagon, etc.

[0072] Such as Figure 6 As shown, optionally, the fixing portion 221 can be a protrusion provided on the outer surface of the first wire-winding portion 222, and one end of the connection wire 7 is wound around the protrusion, so as to realize the connection between the connection wire 7 and the fixing portion 221. Of course, the fixing portion 221 can also be at least two first through holes provided on the outer surface of the first wire-winding portion 222, that is, one end of the connection wire 7 sequentially passes through the two first through holes and knots after passing through the last first through hole, so as to also realize the connection between the connection wire 7 and the fixing portion 221.

[0073] Of course, the fixing part 221 can also be other structures that can be fixed to the connecting wire 7. For example, the connecting wire 7 is first wound around the first winding part 222 for one turn, and then the connecting wire 7 is glued to the first winding part 222 or by other means.

[0074] As Figure 6 shown, as an implementation manner, the first operating member 22 is provided with an installation groove 225 penetrating through the first operating part 224 and the first winding part 222. The installation groove 225 is used to install the one-way rotating member 21, so that medical staff can directly drive the first operating member 22, and the rotation direction of the first operating member 22 relative to the rod body 3 is the direction in which the one-way rotating member 21 can rotate unidirectionally relative to the rod body 3. Thus, the one-way rotating member 21 and the first operating member 22 are synchronized to rotate relative to the rod body 3 in a certain direction, and this direction is the direction in which the one-way rotating member 21 can rotate unidirectionally relative to the rod body 3.

[0075] Optionally, since the installation groove 225 penetrates through the first operating part 224 and the first winding part 222, the position of the one-way rotating member 21 in the installation groove 225 is not fixed. It can be inside the first winding part 222 or inside the first operating part 224.

[0076] As Figure 7 shown, optionally, a second through hole 226 is formed in the bottom wall of the installation groove 225. The second through hole 226 is used for the rod body 3 to pass through, and at the same time, it also constitutes that the installation groove 225 penetrates through the first operating part 224 and the first winding part 222.

[0077] As an implementation manner, the one-way rotating member 21 is a one-way bearing. By setting the one-way rotating member 21 as a one-way bearing, the one-way bearing is installed on the rod body 3 and can rotate unidirectionally relative to the rod body 3. The one-way bearing can rotate relative to the rod body 3 in the clockwise direction. If it rotates in the counterclockwise direction, the one-way bearing will lock the rod body 3 and prevent it from rotating; or the one-way bearing can also rotate relative to the rod body 3 in the counterclockwise direction, and it will lock the rod body 3 and prevent it from rotating when rotating in the clockwise direction.

[0078] Optionally, the outer ring of the one-way bearing is fitted with the circumferential wall of the installation groove 225, so that the one-way bearing and the first operating member 22 can rotate synchronously relative to the rod body 3.

[0079] As Figure 3 and 6 shown, as an implementation manner, the recycling device includes a stop block 9. The stop block 9 is arranged at the opening position of the installation groove 225 to prevent the one-way rotating member 21 from falling off from the installation groove 225.

[0080] As an implementation manner, the recovery device further includes a second single rotator and a third single rotator. Both the second single rotator and the third single rotator are arranged on the rod body 3 and can rotate unidirectionally for taking in the wire relative to the rod body 3 respectively, so that the first single rotator 2, the second single rotator and the third single rotator respectively independently control the connection wires 7 connected thereto. That is, the connection wires 7 are arranged in three, and each connection wire 7 respectively passes through the connection ring of the heart valve prosthesis. When it is necessary to finely adjust the position of the heart valve prosthesis, the corresponding first single rotator 2, second single rotator or third single rotator can be independently controlled. By any one of the single rotators, a connection wire 7 connected thereto is wound around the outer surface of the corresponding wire winding part, and the heart valve prosthesis is pulled to realize the fine adjustment of the position of the heart valve prosthesis, adjust the position or state of the heart valve prosthesis, so as to improve the implantation accuracy.

[0081] In some cases, at least two single rotators can also be controlled to rotate relative to the rod body 3 simultaneously, that is, the first single rotator 2 and the second single rotator, or the first single rotator 2 and the third single rotator, or the second single rotator and the third single rotator can be controlled to take in the wire simultaneously.

[0082] Optionally, both the second single rotator and the third single rotator are provided with fixing parts 221 for connecting with the connection wires 7 to prevent the connection wires 7 from falling off the second single rotator and the third single rotator. At the same time, second wire winding parts 141 and third wire winding parts 151 capable of winding the connection wires 7 are also provided.

[0083] Optionally, the first single rotator 2, the second single rotator and the third single rotator are respectively connected with a corresponding connection wire 7.

[0084] Such as Figure 6 and 7 As shown, one ends of multiple connection wires 7 are respectively connected with the corresponding single rotators through the fixing parts 221 on each single rotator, and the other ends pass through the connection rings on the heart valve prosthesis and then wind back to the delivery device 10 and are connected with other components on the delivery device 10. When the implantation position of the heart valve prosthesis is inaccurate and it is necessary to re-accommodate the heart valve prosthesis into the accommodation space formed by the inner tube assembly, multiple single rotators can be respectively controlled to rotate unidirectionally relative to the rod body 3, which is equivalent to respectively controlling multiple connection wires 7 to tighten the heart valve prosthesis. And during the tightening process, the connection wires 7 are wound around the wire winding parts of the corresponding single rotators, so that the connection rings on the heart valve prosthesis can be successively pulled back to the position abutted against the fixing head on the delivery device 10, completing the recovery of the heart valve prosthesis and reducing the situation that the heart valve prosthesis cannot be recovered due to simultaneously tightening the connection rings of the heart valve prosthesis.

[0085] In addition, when the recovery device according to the embodiment of the present application needs to re-accommodate the heart valve prosthesis into the accommodation space in the inner tube assembly, the first single rotator 2, the second single rotator, and the third single rotator can be respectively controlled to rotate relative to the rod body 3, so that multiple connection lines 7 tighten the heart valve prosthesis, and further enable the connection rings of the heart valve prosthesis to return to the abutting positions of the fixed heads in the delivery device 10 one by one, completing the re-accommodation of the heart valve prosthesis. Of course, the accuracy of implanting the heart valve prosthesis can be further improved. For example, when the position of implanting the heart valve prosthesis is incorrect, since the proximal end of the heart valve prosthesis is restricted by multiple connection lines 7, by rotating one or more single rotators, the corresponding connection lines 7 are wound around the winding parts of the corresponding single rotators, and the corresponding connection rings of the heart valve prosthesis are pulled by one or more connection lines 7 to finely adjust the local position of the heart valve prosthesis, thereby improving the accuracy of implanting the heart valve prosthesis.

[0086] As Figure 4 and 6 shown, at the same time, the rod body 3 of the embodiment of the present application can rotate relative to the recovery body 1, and the first single rotator 2, the second single rotator, and the third single rotator are arranged on the rod body 3. When it is necessary to release the heart valve prosthesis, by driving the rod body 3 to rotate relative to the recovery body 1, the first single rotator 2, the second single rotator, and the third single rotator are synchronously driven to rotate relative to the recovery body 1, so that multiple connection lines 7 wound around the winding parts of the corresponding single rotators are in a relaxed and wire-releasing state, and the heart valve prosthesis is released. After the release of the heart valve prosthesis is completed, each connection line 7 correspondingly connected to the first single rotator 2, the second single rotator, and the third single rotator is separated from the heart valve prosthesis. By driving the rod body 3 to rotate relative to the recovery body 1, the multiple single rotators are simultaneously driven to rotate relative to the recovery body 1, so that the multiple connection lines 7 are wound around the winding parts of the corresponding single rotators, completing the wire-winding operation. Thereby, the operation time for the recovery device to wind and release the connection lines 7 is reduced, the operation efficiency is improved, and it is also convenient for medical staff to operate, that is, only by driving the rod body 3 to rotate relative to the recovery body 1, the operation of simultaneously releasing or winding multiple connection lines 7 can be realized.

[0087] Optionally, the rod body 3 can rotate clockwise relative to the recovery body 1 for the wire-winding operation, and rotate counterclockwise relative to the recovery body 1 for the wire-releasing operation; or, the rod body 3 can rotate counterclockwise relative to the recovery body 1 for the wire-winding operation, and rotate clockwise relative to the recovery body 1 for the wire-releasing operation.

[0088] Optionally, the rotation directions of the first single rotator 2, the second single rotator, and the third single rotator relative to the rod body 3 for the wire winding operation should be the same as the rotation direction of the rod body 3 relative to the recovery body 1 for the wire winding operation. For example, if the first single rotator 2, the second single rotator, and the third single rotator rotate clockwise relative to the rod body 3 to separately recover the corresponding connection lines 7, then the rod body 3 should rotate clockwise relative to the recovery body 1 to synchronously rotate the multiple single rotators on the rod body 3, which should also be a wire winding operation. When the rod body 3 rotates counterclockwise relative to the recovery body 1 to synchronously rotate the multiple single rotators on the rod body 3, it is a wire releasing operation.

[0089] As Figure 6 and 7 shown, as an implementation manner, two clamping grooves 32 are provided at intervals on the outer surface of the rod body 3. The recovery device further includes two clamping members 4. The clamping members 4 are in sheet-like structures. The two clamping members 4 are respectively clamped on the clamping grooves 32. The first single rotator 2, the second single rotator, and the third single rotator are located between the two clamping members 4. The clamping members 4 limit and block the three single rotators to prevent the single rotators from moving axially along the rod body 3, further affecting the wire winding or wire releasing operation of the wire winding and releasing assembly.

[0090] Optionally, one of the clamping members 4 is in contact with the stop block 9 installed on the first operating member 22 to improve the stopping effect of the clamping member 4, and the other clamping member 4 is in contact with the third operating member 15.

[0091] As Figures 5 to 7 shown, as an implementation manner, the first single rotator 2, the second single rotator, and the third single rotator are arranged in sequence along the axial direction of the rod body 3. The second single rotator includes a second operating member 14, and the third single rotator includes a third operating member 15. A plugging groove 223 for plugging with the second operating member 14 is provided on one side of the first operating member 22 away from the stop structure; a plugging groove 223 for plugging with the third operating member 15 is provided on one side of the second operating member 14 away from the stop structure. The plugging grooves 223 on the first operating member 22 and the second operating member 14 have the same structure. By providing the plugging grooves 223 on the first operating member 22 and the second operating member 14, the second wire winding part 141 of the second operating member 14 can be inserted into the plugging groove 223 of the first operating member 22, and the third wire winding part 151 of the third operating member 15 can be inserted into the plugging groove 223 of the second operating member 14, thereby shortening the axial distance occupied by the three operating members on the rod body 3 and improving the space utilization rate; on the other hand, it can also prevent the connection lines 7 connected to the second operating member 14 and the third operating member 15 from falling off the second operating member 14 and the third operating member 15, resulting in abnormal wire winding or wire releasing.

[0092] Optionally, the third operating part of the third operating member 15 facing the flange 31 side is a planar structure without the insertion slot 223, thereby increasing the contact area with the engaging member 4.

[0093] As Figure 6 and 7 shown, optionally, the second single-rotating body includes a second operating member 14 and a one-way rotating member 21. The one-way rotating member 21 is a one-way bearing. The structure of the second operating member 14 is the same as that of the first operating member 22, including a second operating part and a second wire-winding part 141. A fixing part 221 is provided on the second wire-winding part 141, and a through installation slot 225 is also provided on the second operating member 14; the third single-rotating body includes a third operating member 15 and a one-way rotating member 21. The one-way rotating member 21 is a one-way bearing. The difference between the third operating member 15 and the second operating member 14 is that: the insertion slot 223 is not provided on the third operating part of the third operating member 15. The third operating member 15 includes a third operating part and a third wire-winding part 151. A fixing part 221 is provided on the third wire-winding part 151, and a through installation slot 225 is also provided on the third operating member 15. The second wire-winding part 141 and the second operating part are integrally formed. The third wire-winding part 151 and the third operating part are integrally formed. The second operating part and the third operating part are in a disc-shaped structure, which further facilitates the medical staff to operate them with their fingers and improves the operation convenience. The second operating part and the third operating part can also be in a polygonal structure, such as a pentagon or a hexagon, etc.

[0094] As Figure 1 , 3 and 8 shown, as an implementation manner, the recovery body 1 includes a recovery handle 11. The recovery handle 11 is detachably connected to the cover body 12, which facilitates the assembly of other parts in the cover body 12; a receiving groove 127 is provided in the cover body 12, and the rod body 3 vertically penetrates the cover body 12 along the axis of the recovery handle 11, which facilitates the medical staff to operate it, that is, one hand holds the recovery handle 11 and the other hand is used to drive the rod body 3 to rotate, which conforms to ergonomics.

[0095] Optionally, the rod body 3 vertically penetrates the cover body 12 in the horizontal direction along the axis of the recovery handle 11. The axis of the recovery handle 11 is the direction from the proximal end to the distal end.

[0096] As Figure 2 and 3 shown, the recovery device further includes a rotating cap 6 that can drive the rod body 3 to rotate. The rotating cap 6 is located at the opposite end of the flange 31. On the one hand, it cooperates with the flange 31 to prevent the rod body 3 from falling off the cover body 12. On the other hand, it facilitates the medical staff to drive the rod body 3 to rotate through the rotating cap 6 and improves the operation convenience.

[0097] Optionally, in order to further increase the friction between the rotating cap 6 and the medical staff, a plurality of recessed areas or patterns are provided around the rotating cap 6 .

[0098] Optionally, the rotating cap 6 can move along an axial direction perpendicular to the recovery body 1 , and at the same time drive the rod body 3 to move along an axial direction perpendicular to the recovery body 1 , thereby achieving relative locking or unlocking between the rod body 3 and the recovery body 1 .

[0099] like Figure 5 As shown, as an embodiment, the recovery device also includes a positioning portion 61 disposed on the rotating cap 6 for cooperating with the cover body 12 to prevent the rod body 3 from accidentally rotating. By providing the positioning portion 61, and the positioning portion 61 being disposed toward one side of the cover body 12, the positioning portion 61 cooperates with the cover body 12 to achieve relative stillness of the rod body 3 and the cover body 12, thereby avoiding misoperation by medical staff, which may cause the rod body 3 to rotate relative to the cover body 12 and release the heart valve prosthesis prematurely.

[0100] Optionally, the positioning portion 61 and the rotating cap 6 may be integrally formed, or may be connected in a detachable manner, such as by threading or snapping.

[0101] The positioning portion 61 includes a locking gear, and the cover body 12 is provided with a locking tooth groove 126 that cooperates with the locking gear, that is, the cover body 12 includes the locking tooth groove 126, and the locking gear is engaged with the locking tooth groove 126 to prevent the rod body 3 from rotating accidentally relative to the cover body 12.

[0102] like Figure 4 and 5 As shown, optionally, the positioning portion 61 moves toward the locking tooth groove 126 to achieve engagement between the locking gear and the locking tooth groove 126, and the positioning portion 61 moves away from the locking tooth groove 126, and the locking gear is separated from the locking tooth groove 126. In addition, during the movement of the positioning portion 61, the rod body 3 also moves synchronously.

[0103] like Figure 4 As shown, as an embodiment, the cover body 12 includes a convex cylinder 125 extending along the extension direction of the rod body 3 and toward the side of the rotating cap 6, and the inner wall of the convex cylinder 125 is provided with a locking tooth groove 126. By providing the convex cylinder 125, the locking gear on the rotating cap 6 can be easily engaged with the locking tooth groove 126 on the inner wall of the convex cylinder 125, which can further prevent the rod body 3 from rotating accidentally.

[0104] like Figure 4 As shown, as an embodiment, the convex cylinder 125 is provided with a second connecting hole 124, and the second connecting hole 124 is located on the side opposite to the first connecting hole 123 and is coaxially arranged with the first connecting hole 123, so as to facilitate the rod body 3 to pass through the first connecting hole 123 and the second connecting hole 124, and be threadedly connected with the rotating cap 6, so that the rotating cap 6 can drive the rod body 3 to rotate relative to the cover body 12.

[0105] As Figure 9 shown, in a second aspect, an embodiment of the present application provides a cardiac valve prosthesis delivery device, including a handle 101, and further including a recovery device for recovering a connection line provided in the first aspect. The recovery body 1 is disposed at the proximal end of the handle 101, facilitating the operation of medical staff.

[0106] As Figure 9 shown, the delivery device 10 includes a handle 101, an outer tube 102, and an inner tube. The outer tube 102 and the inner tube form an inner tube assembly. Both the outer tube 102 and the inner tube are connected to the handle 101. The outer tube 102 is sleeved on the outer periphery of the inner tube, and the inner tube extends within the outer tube 102. A receiving space for accommodating the cardiac valve prosthesis is provided between the outer tube 102 and the inner tube. In a state where the cardiac valve prosthesis is not implanted, the cardiac valve prosthesis is located in the receiving space.

[0107] As an implementation manner, the recovery body 1 is detachably connected to the handle 101, facilitating the assembly between the delivery device 10 and the handle 101.

[0108] Optionally, a convex block is provided at the distal end of the recovery body 1, and a slot is provided at the proximal end of the handle 101. The convex block is correspondingly inserted into the slot, thereby realizing the detachable connection between the recovery body 1 and the handle 101. Of course, the recovery handle 11 can also be connected to the handle 101 by bolts, that is, along the axial direction of the recovery handle 11 and the handle 101, the handle 101 and the recovery handle 11 are fixed by bolts.

[0109] The above are only embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0110] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0111] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising said element.

Claims

1. A recycling device for recycling connecting wires, characterized in that: include: A recycling body, a rod body assembled on the recycling body, and a first single rotating body for winding a connecting line; the first single rotating body is rotatably arranged on the rod body and can move axially with the rod body; the recycling body is provided with a receiving groove, the rod body passes through the receiving groove, and the first single rotating body can move with the rod body in the receiving groove; The recovery body is provided with a stopper structure for preventing the connecting wire from slipping off the first single rotating body; The stop structure comprises a stopper and a groove provided on the recovery body, the groove is communicated with the receiving groove, the stopper is embedded in the groove and partially protrudes toward the receiving groove; The first single rotating body comprises a first winding portion for winding a connecting line, and the stopper is arranged in contact with the first winding portion; the stopper is a foam member or a silicone member.

2. The recovery device for recovering connecting wires according to claim 1, characterized in that: The recovery device includes a flange located at one end of the rod body, the flange is fixedly connected to the rod body, the recovery body includes a cover body and a recovery handle detachably connected to the cover body, the cover body is provided with the accommodating groove and the groove, the cover body is provided with a first connecting hole for accommodating the rod body to pass through on one side facing the flange, and the diameter of the flange is larger than the diameter of the first connecting hole.

3. The recovery device for recovering connecting wires according to claim 2, characterized in that: A telescopic member is further provided between the flange and the cover body, and two ends of the telescopic member are respectively in contact with the flange and the cover body, and the telescopic member is in a pre-tightened state.

4. The recovery device for recovering connecting wires according to claim 2, characterized in that: The recycling body also includes a support member, which is located in the accommodating groove and connected to the cover body. The support member is provided with the groove for accommodating the stopper.

5. The recovery device for recovering connecting wires according to claim 4, characterized in that: The support member is provided with a notch, the groove is recessed from the position of the notch, and the first single rotating body is embedded in the notch.

6. The recovery device for recovering connecting wires according to claim 1, characterized in that: The first single-rotating body can rotate unidirectionally relative to the rod body for reeling in, and the first single-rotating body includes a one-way rotating part and a first operating part connected to the one-way rotating part. The one-way rotating part is installed on the rod body, and the first operating part is assembled on the rod body through the one-way rotating part.

7. The recovery device for recovering connecting wires according to claim 6, characterized in that: The first operating member includes a first operating portion protruding from the recovery body and the first winding portion connected to the first operating portion, and the first winding portion is provided with a fixing portion for connecting the connecting wire.

8. The recovery device for recovering connecting wires according to claim 7, characterized in that: The first operating member is provided with a mounting groove penetrating the first operating portion and the first winding portion, and the one-way rotating member is located in the mounting groove.

9. The recovery device for recovering connecting wires according to claim 6, characterized in that: The one-way rotating member is a one-way bearing.

10. The recovery device for recovering connecting wires according to claim 8, characterized in that: The recovery device comprises a stop block for preventing the one-way rotating member from slipping off, and the stop block is arranged at the opening position of the installation groove.

11. The recovery device for recovering connecting wires according to claim 10, characterized in that: The recovery device further comprises a second single rotating body and a third single rotating body, wherein the second single rotating body and the third single rotating body are both located on the rod body and can respectively rotate in one direction for collecting the line relative to the rod body.

12. The recovery device for recovering connecting wires according to claim 11, characterized in that: The outer surface of the rod body is provided with two clamping grooves at intervals, and the recovery device also includes two clamping parts, which are matched with the clamping grooves, one of which is fitted with the third single rotating body, and the other is fitted with the stop block.

13. The recovery device for recovering connecting wires according to claim 11, characterized in that: The first single rotating body, the second single rotating body and the third single rotating body are arranged in sequence along the axial direction of the rod body, the second single rotating body includes a second operating member, the third single rotating body includes a third operating member, and the first operating member is provided with a plug-in groove for plugging with the second operating member on the side away from the stop structure; the second operating member is provided with a plug-in groove for plugging with the third operating member on the side away from the stop structure.

14. The recovery device for recovering connecting wires according to claim 2, characterized in that: The recovery device comprises a rotating cap which can drive the rod body to rotate and move along an axial direction perpendicular to the recovery handle, and the rotating cap is located at an opposite end of the flange.

15. The recovery device for recovering connecting wires according to claim 14, characterized in that: The recovery device further comprises a positioning portion disposed on the rotating cap and used to cooperate with the cover body to prevent the rod body from accidentally rotating; The positioning portion comprises a locking gear, and the cover body is provided with a locking tooth groove matched with the locking gear.

16. The recovery device for recovering connecting wires according to claim 15, characterized in that: The cover body comprises a convex cylinder extending along the extension direction of the rod body and protruding toward one side of the rotating cap, and the locking tooth groove is arranged on the inner wall of the convex cylinder.

17. The recovery device for recovering connecting wires according to claim 16, characterized in that: The convex cylinder is provided with a second connecting hole, the second connecting hole and the first connecting hole are located on the same axis, and the rod body passes through the first connecting hole and the second connecting hole and is threadedly connected to the rotating cap.

18. A heart valve prosthesis delivery device, characterized in that: It comprises a handle; and a recovery device for recovering a connecting line as claimed in any one of claims 1 to 17, wherein the recovery body is arranged at the proximal end of the handle.

19. The conveying device according to claim 18, characterized in that The recycling body is detachably connected to the handle.

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