Disclosure of Invention
The application aims to provide a recovery device and a heart valve prosthesis conveying device capable of independently adjusting corresponding recovery connecting wires.
In order to solve the technical problems, the application adopts the following technical scheme:
The application provides a recovery device for recovering connecting wires, which comprises a recovery body connected to a handle and a wire winding and unwinding assembly assembled on the recovery body, wherein the wire winding and unwinding assembly comprises a rod body capable of rotating relative to the recovery body, a plurality of single rotating bodies which are arranged on the rod body and capable of unidirectionally winding wires relative to the rod body, and a fixing part for connecting the connecting wires and a wire winding part for winding the connecting wires are arranged on each single rotating body.
As an embodiment, the single rotator comprises a unidirectional rotating member and an operating member in fit connection with the unidirectional rotating member, the unidirectional rotating member is mounted on the rod body, and the operating member is assembled on the rod body through the unidirectional rotating member.
As one embodiment, the operation member includes an operation portion protruding out of the recovery body and the winding portion connected to the operation portion, and the fixing portion is located on the winding portion.
As an embodiment, the fixing portion includes a protrusion or at least two first through holes for fixing with the connection line.
In one embodiment, the operating element is provided with a mounting groove penetrating the operating portion and the winding portion, and the unidirectional rotating element is located in the mounting groove.
As one embodiment, the unidirectional rotating member is a unidirectional bearing.
As one implementation mode, the recovery body comprises a recovery handle and a cover body detachably connected with the recovery handle, and the rod body penetrates through the cover body in the axial direction perpendicular to the recovery handle.
As one implementation mode, the take-up and pay-off assembly comprises a flange positioned at one end part of the rod body, the flange is fixedly connected with the rod body, a first connecting hole is formed in one side, facing the flange, of the cover body, and the diameter of the flange is larger than that of the first connecting hole.
As one embodiment, the winding and unwinding assembly comprises a rotary cap capable of driving the whole rod body to rotate, and the rotary cap is positioned at the other end opposite to the flange.
As one embodiment, the pay-off and take-up assembly further comprises a positioning part arranged on the rotary cap and used for being matched with the cover body to prevent the rod body from rotating accidentally.
As one embodiment, the positioning portion includes a locking gear, and the cover body is provided with a locking tooth slot adapted to the locking gear.
As one embodiment, the cover body comprises a convex cylinder extending along the extending direction of the rod body and protruding towards one side of the rotary cap, and the inner wall of the convex cylinder is provided with the locking tooth slot.
As one embodiment, the protruding 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 in threaded connection with the rotary cap.
As one implementation mode, a telescopic piece is further arranged between the flange and the cover body, and two ends of the telescopic piece are respectively abutted to the flange and the cover body and used for meshing the locking gear with the locking tooth groove.
The recovery device comprises a stop block, the stop block is embedded into a winding part of the operating piece close to one side of the rotary cap, the recovery device further comprises two clamping pieces, the clamping pieces are correspondingly matched with the clamping grooves, a plurality of single rotating bodies are positioned between the two clamping pieces, one clamping piece is attached to the single rotating body far away from one side of the rotary cap, the other clamping piece is attached to the stop block, and the two clamping pieces are used for limiting and stopping the single rotating bodies along the axial direction of the rod body.
As an implementation manner, the plurality of single rotating bodies are sequentially arranged along the axial direction of the rod body, wherein the operating piece close to one side of the rotating cap is a first operating piece, the operating piece is in butt joint with the first operating piece and is a second operating piece, and the first operating piece and one side, deviating from the rotating cap, of the second operating piece are both provided with inserting grooves for being matched with the winding parts.
As one embodiment, the cover body is provided with a plurality of movable openings, the movable openings correspond to the single rotating bodies in number, and the operation part is partially protruded out of the movable openings.
As an implementation mode, the recovery handle is internally provided with a threading channel for guiding the connecting wire, the cover body is internally provided with a movable cavity, the movable cavity is communicated with the movable opening, and one side of the far end of the cover body is also provided with a threading hole for guiding the connecting wire to enter the movable cavity.
As one implementation mode, the rotary cap further comprises a support piece which is arranged in the movable cavity and fixedly connected with the cover body, a notch is formed in the support piece, and the winding part on the operating piece, which is close to one side of the rotary cap, is embedded into the notch.
In a second aspect, embodiments of the present application provide a heart valve prosthesis delivery device comprising a handle, and a connecting wire retrieval device for a heart valve prosthesis according to the first aspect, the retrieval body being disposed at a proximal end of the handle.
As an embodiment, the recovery body is detachably connected to the handle.
The technical scheme of the application has the following effects:
1. The recovery device comprises a recovery body connected with the handle and a take-up and pay-off assembly arranged on the recovery body, wherein the take-up and pay-off assembly comprises a rod body capable of rotating relative to the recovery body and a plurality of single rotators which are arranged on the rod body and can rotate unidirectionally relative to the rod body to realize unidirectional take-up, the single rotators correspondingly control a single connecting wire, and simultaneously, a fixing part fixedly connected with the connecting wire is arranged on the single rotators to prevent the connecting wire from falling off;
In addition, when the implantation position of the heart valve prosthesis is incorrect, the proximal end of the heart valve prosthesis is limited by the connecting wire, so that the connecting wire is wound on the winding part by rotating the single rotating body, and the connecting wire pulls the heart valve prosthesis to finely adjust the local position of the heart valve prosthesis, so that the implantation accuracy of the heart valve prosthesis is improved.
2. The winding and unwinding assembly comprises a positioning part which is matched with the cover body to prevent the rod body from rotating accidentally, and the positioning part is arranged to prevent the rod body from rotating accidentally, so that the misoperation of the conveying device by medical staff can be further prevented, and the heart valve prosthesis is released in advance.
3. The surface interval of the body of rod sets up two joint grooves, and two joint spare joint respectively are on the joint groove, carries out spacing backstop to a plurality of single rotations along the axial direction of the body of rod, prevents that single rotations from following the axial direction drunkenness of the body of rod to improve recovery unit's stability, make things convenient for medical personnel to operate.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the term "distal end" means an end of components in the heart valve prosthesis delivery handle near heart tissue, and "proximal end" means an end of the heart valve prosthesis delivery handle near an operator, and the terms "first", "second", and the like are used for distinguishing the description only and are not to be construed as indicating or implying relative importance.
In a first aspect, embodiments of the present application provide a recovery device for recovering a connecting wire, where the recovery device is mounted at a proximal end of a handle 101, and is convenient for a medical staff to hold the recovery device for operating the recovery device, and the recovery device can be used to control the connecting wire 7 independently and sequentially, so that the connecting wire 7 tightens a heart valve prosthesis, and ensures that the heart valve prosthesis can be stored in a delivery device again, and can also control a release process of the heart valve prosthesis, so as to improve accuracy of implantation of the heart valve prosthesis, and can also recover the connecting wire 7 after releasing the heart valve prosthesis.
As shown in fig. 1 and 2, the recovery device comprises a recovery body 1 and a take-up and pay-off assembly assembled on the recovery body 1, wherein the recovery body 1 is connected with a handle 101, the take-up and pay-off assembly is used for paying off or taking up the connecting wire 7, the connecting wire 7 needs to be paid off through the take-up and pay-off assembly in the process of releasing the heart valve prosthesis, and when the heart valve prosthesis needs to be recovered and re-released or after the heart valve prosthesis is released, the connecting wire 7 needs to be recovered through the take-up and pay-off assembly.
As shown in fig. 1, 3 and 6, the winding and unwinding assembly includes a rod body 3 rotatable relative to the recovery body 1, and a plurality of single rotators 2 disposed on the rod body 3 and capable of rotating unidirectionally relative to the rod body 3 and completing winding operation of the connecting wire 7 in the unidirectional rotation process, each single rotator 2 is provided with a fixing portion 221 for connecting with the connecting wire 7, preventing the connecting wire 7 from falling off from the single rotator 2, and a winding portion 222 capable of winding the connecting wire 7 is also provided.
As shown in fig. 8, the delivery device 10 includes a handle 101, an outer tube 102 and an inner tube, the outer tube and the inner tube form an inner tube assembly, the outer tube and the inner tube are connected to the handle 101, the outer tube 102 is sleeved on the outer periphery of the inner tube, the inner tube extends in the outer tube, a containing space for containing the heart valve prosthesis is provided between the outer tube and the inner tube, and the heart valve prosthesis is located in the containing space in a state that the heart valve prosthesis is not implanted.
Optionally, each single rotator 2 is connected to a corresponding one of the connecting wires 7.
As shown in fig. 6 and 7, one end of the connecting wire 7 is connected with the single rotating body 2 through the fixing portion 221, the other end passes through the connecting ring on the heart valve prosthesis and is connected with other components on the conveying device 10, when the implantation position of the heart valve prosthesis is inaccurate, the heart valve prosthesis needs to be received in the receiving space formed by the inner tube assembly again, the heart valve prosthesis can be tensioned by controlling the single rotating bodies 2 to rotate unidirectionally relative to the rod body 3 respectively, which is equivalent to controlling the connecting wires 7 to tension the heart valve prosthesis respectively, and in the tensioning process, the connecting wire 7 is wound on the winding portion 222, so that the connecting ring on the heart valve prosthesis can be pulled back to the position propped against the fixing head on the conveying device in turn, the recovery of the heart valve prosthesis is completed, and the situation that the heart valve prosthesis cannot be recovered due to the connecting ring of the heart valve prosthesis being tensioned simultaneously is avoided.
Alternatively, the unidirectional rotation means that the single rotator 2 can only rotate in a certain direction relative to the rod body 3 and cannot rotate in the opposite direction, for example, the single rotator 2 may be configured to rotate in a clockwise direction relative to the rod body 3 and cannot rotate in a counterclockwise direction, or the single rotator 2 may be configured to rotate in a counterclockwise direction relative to the rod body 3 and cannot rotate in a clockwise direction, and the specific rotation direction of the single rotator 2 relative to the rod body 3 may be adjusted according to practical use.
In addition, when the heart valve prosthesis needs to be re-accommodated in the accommodating space in the inner tube assembly, the recovery device of the embodiment of the application can enable the plurality of single rotary bodies 2 to rotate relative to the rod body 3 by controlling the plurality of single rotary bodies to enable the plurality of connecting wires 7 to tighten the heart valve prosthesis and further enable the connecting rings of the heart valve prosthesis to return to the abutting positions of the fixing heads one by one to finish the re-accommodation of the heart valve prosthesis, and of course, the accuracy of implantation of the heart valve prosthesis can be further improved, for example, when the position of implantation of the heart valve prosthesis is incorrect, the proximal end of the heart valve prosthesis is limited by the plurality of connecting wires 7, so that the corresponding connecting wires 7 are wound on the winding part 222 by rotating one or more single rotary bodies 2, and the corresponding connecting rings of the heart valve prosthesis are pulled by one or more connecting wires 7 to finely adjust the local positions of the heart valve prosthesis, thereby improving the accuracy of implantation of the heart valve prosthesis.
As shown in fig. 4 and 6, simultaneously, the rod 3 of the embodiment of the application can rotate relative to the recovery body 1, and a plurality of single rotators 2 are arranged on the rod 3, when the heart valve prosthesis is required to be released, the rod 3 is driven to rotate relative to the recovery body 1, and simultaneously the plurality of single rotators 2 are synchronously driven to rotate relative to the recovery body 1, so that a plurality of connecting wires 7 wound on corresponding winding parts 222 are in a paying-off state, the heart valve prosthesis is released, after the heart valve prosthesis is released, each connecting wire 7 correspondingly connected with the single rotators 2 is separated from the heart valve prosthesis, and the rod 3 is driven to rotate relative to the recovery body 1, and simultaneously the plurality of single rotators 2 are driven to synchronously rotate relative to the recovery body 1, so that the plurality of connecting wires 7 are wound on the corresponding winding parts 222, and the wire winding operation is completed. Thereby reduced recovery unit to the receive line and the operating time of unwrapping wire of connecting wire 7, improved operating efficiency, also made things convenient for medical personnel to operate simultaneously, only need the drive body of rod 3 promptly for retrieving body 1 rotation, can realize the operation of many connecting wires 7 unwrapping wire or receive the line simultaneously.
Alternatively, the rod 3 may be rotated in a clockwise direction with respect to the recovery body 1 as a take-up operation and rotated in a counterclockwise direction with respect to the recovery body 1 as a pay-out operation, or the rod 3 may be rotated in a counterclockwise direction with respect to the recovery body 1 as a take-up operation and rotated in a clockwise direction with respect to the recovery body 1 as a pay-out operation.
Optionally, the winding operation of the single rotator 2 is completed relative to the rotation direction of the rod body 3 and the winding operation of the rod body 3 relative to the rotation direction of the recovery body 1 are consistent, for example, if the single rotator 2 rotates clockwise relative to the rod body 3 to form a separate corresponding connection line 7 for recovery, then the rod body 3 rotates clockwise relative to the recovery body 1 so that the plurality of single rotators 2 on the rod body 3 synchronously rotate also as the winding operation, and the rod body 3 rotates counterclockwise relative to the recovery body 1 so that the plurality of single rotators 2 on the rod body 3 synchronously rotate also as the paying-off operation.
Optionally, the number of the single rotators 2 is three, each single rotator 2 is correspondingly and independently controlled to connect with the connecting wire 7, namely, the connecting wire 7 is three, each connecting wire 7 is correspondingly penetrated through the connecting ring of the heart valve prosthesis, when the position of the heart valve prosthesis needs to be finely tuned, the corresponding single rotator 2 can be independently controlled, one connecting wire 7 corresponding to the single rotator 2 is wound on the outer surface of the winding part 222 and pulls the heart valve prosthesis, so that fine tuning of the position of the heart valve prosthesis is realized, and the position or state of the heart valve prosthesis is adjusted, so that the implantation accuracy is improved.
In some cases, it is also possible to control the rotation of the two single rotators 2 relative to the rod body 3 at the same time, and take up the wire.
As shown in fig. 3 and 5 to 7, as an embodiment, the single rotator 2 includes a unidirectional rotating member 21 and an operating member 22 cooperatively connected with the unidirectional rotating member 21, where the unidirectional rotating member 21 is mounted on an outer surface of the rod body 3 and can rotate unidirectionally relative to the rod body 3, that is, can only rotate in a certain direction, that is, can only rotate relative to the rod body 3, if the unidirectional rotating member is in a locked state along the opposite direction, and cannot rotate, and meanwhile, the operating member 22 is connected with the unidirectional rotating member 21, and is assembled on the rod body 3 through the unidirectional rotating member 21, so that it is convenient for a medical staff to drive the operating member 22, so that the operating member 22 and the unidirectional rotating member 21 can synchronously rotate unidirectionally relative to the rod body 3, and the convenience of the operation of the medical staff is improved.
As shown in fig. 3,4 and 7, as an embodiment, the operation member 22 includes an operation portion 224 protruding from the recovery body 1, the operation portion 224 is disc-shaped, and at the same time, the operation portion 224 also protrudes from the recovery body 1, so as to facilitate the operation of the medical staff, the operation member 22 further includes a winding portion 222 connected to the operation portion 224, and a fixing portion 221 is located at the winding portion 222, so that the connection wire 7 is connected to the operation member 22 through the fixing portion 221, and at the same time, may be wound around the winding portion 222.
Alternatively, the winding portion 222 is of a cylindrical structure, and is coaxially disposed with the operating portion 224, one end of the winding portion 222 is fixedly connected with the operating portion 224, and the other end is convexly disposed along the axial direction of the operating portion 224, so as to provide a winding space for the connecting wire 7 to be wound on the outer surface of the winding portion 222.
Optionally, the winding portion 222 and the operating portion 224 are integrally formed.
Optionally, the operation portion 224 is a disc-shaped structure, so that the medical staff can operate the device by fingers, and the operation convenience is improved.
As a possible embodiment, the operation portion 224 may have a polygonal structure, for example, a pentagon or a hexagon.
As shown in fig. 6, as an embodiment, the fixing portion 221 includes a protrusion fixed to the connection wire 7, that is, the fixing portion 221 may be a protrusion provided on an outer surface of the winding portion 222, and one end of the connection wire 7 is wound around the protrusion, thereby realizing connection of the connection wire 7 to the fixing portion 221, and of course, the fixing portion 221 may further include at least two first through holes provided on an outer surface of the winding portion 222, that is, one end of the connection wire 7 sequentially passes through the two first through holes and is knotted after passing through the last first through hole, thereby also realizing connection of the connection wire 7 to the fixing portion 221.
Of course, the fixing portion 221 may have other structures that can be fixed to the connection wire 7, for example, a method in which the connection wire 7 is wound around the winding portion 222 once, and then the connection wire 7 is glued to the winding portion 222.
As shown in fig. 6 and 7, as an embodiment, the operation member 22 is provided with a mounting groove 225 penetrating the operation portion 224 and the winding portion 222, the mounting groove 225 being used to mount the unidirectional rotation member 21 so that a medical person can directly drive the operation member 22, and the rotation direction of the operation member 22 relative to the rod body 3 is a direction in which the unidirectional rotation member 21 can rotate unidirectionally relative to the rod body 3, and it is achieved that the unidirectional rotation member 21 rotates in a direction in synchronization with the operation member 22 relative to the rod body 3, the direction being a direction in which the unidirectional rotation member 21 can rotate unidirectionally relative to the rod body 3.
Alternatively, since the mounting groove 225 penetrates the operation portion 224 and the winding portion 222, the position of the unidirectional rotating element 21 in the mounting groove 225 is not fixed, and may be the position of the mounting groove 225 in the winding portion 222 or the position of the mounting groove 225 in the operation portion 224.
As shown in fig. 7, alternatively, the bottom wall of the mounting groove 225 is provided with a second through hole 226, and the second through hole 226 is used for the rod 3 to pass through, and also forms the mounting groove 225 penetrating the operation portion 224 and the winding portion 222.
As an embodiment, the unidirectional rotating member 21 is a unidirectional bearing, and the unidirectional rotating member 21 is a unidirectional bearing, so that the unidirectional bearing is mounted on the rod body 3, and can rotate in a unidirectional direction relative to the rod body 3, or rotate in a clockwise direction relative to the rod body 3, if the unidirectional bearing rotates in a counterclockwise direction, the rod body 3 can be locked and cannot rotate, or the unidirectional bearing can rotate in a counterclockwise direction relative to the rod body 3, and if the unidirectional bearing rotates in a clockwise direction, the rod body 3 can be locked and cannot rotate.
Alternatively, the outer ring of the one-way bearing is fitted to the groove peripheral wall of the mounting groove 225, so that the one-way bearing and the operating member 22 can be rotated synchronously with respect to the rod body 3.
As shown in fig. 1, 2 and 6, as an embodiment, the recovery body 1 includes a recovery handle 11 and a cover 12 detachably connected to the recovery handle 11, so as to facilitate assembling other parts in the cover 12, and the rod 3 penetrates the cover 12 perpendicular to the axial direction of the recovery handle 11, so that a medical staff can conveniently operate the recovery handle, i.e. pull the recovery handle 11 with one hand and drive the rod 3 to rotate with the other hand, and the recovery handle is ergonomic.
Alternatively, the rod 3 is disposed through the cover 12 in a horizontal direction perpendicular to the axial direction of the recovery handle 11, the axial direction of the recovery handle 11 being in a proximal-to-distal direction.
As shown in fig. 1 and 5, as an embodiment, the pay-off and take-up assembly includes a flange 31 at one end of the rod body 3, the flange 31 is fixedly connected with the rod body 3, a first connection hole 123 is formed at a side of the cover body 12 facing the flange 31, the rod body 3 can pass through the first connection hole 123 and rotate relative to the cover body 12, and the diameter of the flange 31 is larger than that of the first connection hole 123, so that the rod body 3 is prevented from falling from the position of the first connection hole 123.
Alternatively, the flange 31 and the rod body 3 may be integrally formed, or may be screwed.
As shown in fig. 4, as an implementation manner, the pay-off and take-up assembly further includes a rotary cap 6 capable of driving the rod body 3 to rotate, the rotary cap 6 is located at one end opposite to the flange 31, and is matched with the flange 31 on one hand to prevent the rod body 3 from falling off from the cover body 12, and on the other hand, the rotary cap 6 is convenient for medical staff to drive the rod body 3 to rotate, so that the operation convenience is improved.
Optionally, in order to further increase the friction between the rotary cap 6 and the medical staff, a plurality of grooves are provided on the circumference of the rotary cap 6.
As shown in fig. 5, as an embodiment, the winding and unwinding assembly further includes a positioning portion 61 provided on the rotary cap 6 for cooperating with the cover 12 to prevent the rod body 3 from rotating accidentally, by providing the positioning portion 61, and setting the positioning portion 61 toward one side of the cover 12, the positioning portion 61 cooperates with the cover 12, so that the rod body 3 and the cover 12 are relatively stationary, avoiding misoperation of medical staff, resulting in rotation of the rod body 3 relative to the cover 12, and releasing the heart valve prosthesis in advance.
Alternatively, the positioning portion 61 and the rotating cap 6 may be integrally formed, or may be detachably connected, such as a screw thread or a clamping connection.
As shown in fig. 4, as an embodiment, the positioning portion 61 includes a locking gear, and the cover 12 is provided with a locking tooth slot 126 matched with the locking gear, that is, the cover 12 includes the locking tooth slot 126, and the locking gear is meshed with the locking tooth slot 126, so that the rod 3 is prevented from rotating accidentally relative to the cover 12.
As shown in fig. 4, as an embodiment, the cover 12 includes a protruding cylinder 125 protruding toward the side of the rotary cap 6 along the extending direction of the rod body 3, and a locking tooth slot 126 is provided on the inner wall of the protruding cylinder 125, so that the locking gear on the rotary cap 6 is conveniently engaged with the locking tooth slot 126 on the inner wall of the protruding cylinder 125 by providing the protruding cylinder 125, and further, the rod body 3 can be prevented from rotating accidentally.
As shown in fig. 4, as an embodiment, the boss 125 is provided with a second coupling hole 124, and the second coupling hole 124 is located at the opposite side of the first coupling hole 123 and is coaxially disposed with the first coupling hole 123, thereby facilitating the rod body 3 to pass through the first coupling hole 123 and the second coupling hole 124 and to be screw-coupled with the spin cap 6, such that the spin cap 6 can drive the rod body 3 to rotate with respect to the cover body 12.
As shown in fig. 1, as an embodiment, a telescopic member 5 is further disposed between the flange 31 and the cover 12, and two ends of the telescopic member 5 are respectively abutted against the flange 31 and the cover 12, so that when the rod body 3 is not required to rotate relative to the cover 12, the elastic force generated by the telescopic member 5 makes the locking gear always meshed with the locking tooth slot 126, thereby avoiding misoperation of medical staff and releasing the heart valve prosthesis in advance.
Optionally, the telescopic member 5 may be a spring, when the rod body 3 is required to rotate relative to the cover body 12, that is, when a plurality of single rotators 2 need to be synchronously driven to take up or pay off, the medical staff directly pushes the flange 31 towards the direction of the rotating cap 6, the provided pushing force is greater than the elastic force of the telescopic member 5, meanwhile, the locking gear is separated from the locking tooth slot 126, and at this time, the rod body 3 is driven to rotate by the rotating cap 6, so that the operation of taking up or paying off is realized.
Of course, in some cases, the rotary cap 6 may be directly pulled out from the protruding barrel 125, so that the locking gear is separated from the locking tooth slot 126, and the rod 3 is driven to rotate by the rotary cap 6, so that the wire winding or unwinding operation is realized.
As shown in fig. 7, as an embodiment, two clamping grooves 32 are formed in the outer surface of the rod body 3 at intervals, the recovery device further comprises two clamping pieces 4, the clamping pieces 4 are of a sheet structure, the two clamping grooves 32 are respectively and correspondingly clamped on the clamping grooves 32, three single bodies 2 are located between the two clamping pieces 4, the clamping pieces 4 limit the single bodies 2 to stop, and the single bodies 2 are prevented from moving along the axial direction of the rod body 3, so that the wire winding or unwinding operation of the wire winding and unwinding assembly is further affected.
As shown in fig. 3,4 and 6, as an embodiment, three single rotators 2 are sequentially arranged along the axial direction of the rod body 3, the recovery device comprises a stop block 9, the stop block 9 is embedded in a winding part 222 of an operating member 22 near one side of the rotating cap 6 and is used for blocking a notch of a mounting groove 225 of the operating member 22 near one side of the rotating cap 6, so that the unidirectional rotating member 21 in the mounting groove 225 of the operating member 22 near one side of the rotating cap 6 is prevented from falling out of the mounting groove 225, in addition, the stop block 9 is attached to a clamping member 4 at the corresponding side, the contact area with the clamping member 4 is increased, and the stop effect of the clamping member 4 is further improved.
Alternatively, one of the engaging members 4 engages with the stopper 9, and the other engaging member 4 engages with the operating portion 224 of the operating member 22 on the side close to the flange 31.
As shown in fig. 7, as an embodiment, the plurality of single rotators 2 are sequentially arranged along the axial direction of the rod body 3, the operating element 22 close to the rotating cap 6 is a first operating element, the operating element 22 abutting against the first operating element is a second operating element, the operating element 22 abutting against the second operating element is a third operating element, wherein the operating parts 224 of the first operating element and the second operating element, which are away from the rotating cap 6, are respectively provided with an inserting groove 223 adapted to the winding part 222, so that the winding part 222 of the second operating element can be inserted into the inserting groove 223 of the first operating element, the winding part 222 of the third operating element can be inserted into the inserting groove 223 of the second operating element, thereby shortening the axial distance occupied by the three operating elements 22 on the rod body 3 and improving the space utilization, and on the other hand, the connecting wire 7 corresponding to the operating element 22 can be prevented from being on other operating elements 22, resulting in wire winding or paying off failure.
Optionally, the operation portion 224 of the third operation element facing the side of the flange 31 is in a planar structure, the insertion groove 223 is not provided, the contact area with the clamping element 4 is increased, the insertion groove 223 is provided on the operation portion 224 of the second operation element facing the side of the flange 31, the winding portion 222 of the third operation element is inserted into the insertion groove 223 on the second operation element, the distance between the second operation element and the third operation element in the axial direction of the rod body 3 is shortened, meanwhile, the connection wire 7 connected with the third operation element can be prevented from being twisted on the second operation element when the connection wire 7 is wound or unwound, so that the connection wire cannot be normally wound or unwound, the operation portion 224 of the first operation element facing the side of the flange 31 is also provided with the insertion groove 223, the distance between the first operation element and the second operation element in the axial direction of the rod body 3 is shortened, and meanwhile, the connection wire 7 connected with the second operation element can be prevented from being twisted on the first operation element when the connection wire 7 is wound or unwound, so that the connection wire cannot be normally wound or unwound.
Alternatively, the first operating element, the second operating element and the third operating element are only for describing three operating elements 22 on the rod 3, and the installation positions of the three operating elements 22 on the rod 3 are not specifically limited, that is, the operating element 22 near the flange 31 side is not provided with the insertion slot 223, and the operating element 22 near the rotating cap 6 side and the operating element 22 abutting against the insertion slot 223 are provided.
As shown in fig. 1 and 5, as an embodiment, the cover 12 is provided with a plurality of movable openings 122, a movable chamber is provided in the cover 12, the movable chamber is communicated with the movable openings 122, the number of the movable openings 122 corresponds to that of the single rotating bodies 2, each operation portion 224 is partially protruded from the movable openings 122, so that the operation portions 224 are conveniently driven by medical staff, and the other part of each operation portion 224 is located in the movable chamber.
As shown in fig. 6, as an embodiment, the recovery handle 11 is provided with a threading channel 111 for guiding the connecting wires 7, one side of the distal end of the cover 12 is further provided with threading holes 121, the number of the threading holes 121 is three, the three threading holes 121 are all communicated with the movable chamber, and each connecting wire 7 passes through the threading channel 111 and passes through the corresponding threading hole 121 respectively to be correspondingly connected with the fixing parts 221 on the three winding parts 222 in the movable chamber.
As shown in fig. 3 and 6, as an embodiment, the recovery device includes a support member 8, where the support member 8 is disposed in the movable chamber and is fixedly connected with the cover 12 through a bolt, the support member 8 is used for supporting the operation member 22 near the rotating cap 6, specifically, a notch 81 is provided on the support member 8, and the notch 81 is adapted to a winding portion 222 on the operation member 22 near the rotating cap 6, so that the winding portion 222 on the operation member 22 near the rotating cap 6 can be embedded into the notch 81, and the support member 8 plays a supporting role on the operation member 22 near the rotating cap 6, and on the other hand, avoids that the connection wire 7 connected with the operation member 22 near the rotating cap 6 is blocked on other parts during the winding or unwinding process, so as to cause a failure of the winding or unwinding function.
As shown in fig. 8, in a second aspect, an embodiment of the present application describes a heart valve prosthesis delivery device, including a handle 101, and a connecting wire retrieving device of the heart valve prosthesis described in the first aspect, wherein a retrieving body 1 is provided at a proximal end of the handle 101, so as to facilitate operation by a medical staff.
As an embodiment, the recovery body 1 is detachably connected to the handle 101, thereby facilitating the assembly between the delivery device 10 and the handle 101.
Optionally, the distal end of the recovery body 1 is provided with a bump, the proximal end of the handle 101 is provided with a slot, and the bump is correspondingly inserted into the slot, so that the recovery body 1 and the handle 101 are disassembled and connected, and of course, the recovery handle 11 can also be connected with the handle 101 through a bolt, that is, the handle 101 and the recovery handle 11 are fixed through the bolt along the axial direction of the recovery handle 11 and the handle 101.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.