Heart valve stent delivery device

Abstract

The utility model provides a heart valve stent delivery device, which comprises a shell, a support and a support, the conveying pipe is partially arranged in the mounting space, and the conveying pipe can move relative to the shell; the fixing shaft penetrates through the shell, one end of the fixing shaft is fixed to the shell, and the conveying pipe is arranged on the fixing shaft in a sleeving mode; the mounting seat is fixed on the fixed shaft, and the mounting seat is arranged in the conveying pipe; the driving device comprises a traction rope and a driving shaft, the driving shaft is mounted in the mounting space, and the traction rope is connected with the conveying pipe and the driving shaft; wherein a valve support is clamped between the installation base and the conveying pipe, the traction rope drives the conveying pipe, and the valve support is exposed to the outer side of the conveying pipe. The valve stent delivery device solves the problem that a valve stent cannot be accurately delivered in a traditional thoracotomy, the delivery pipe is controlled through the traction rope and the driving shaft, accurate delivery of the valve stent is achieved, and the technical effect of improving delivery accuracy and stability of the valve stent is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular to a heart valve stent delivery device. Background Art

[0002] With the continuous progress and development of medical technology, more and more surgical instruments are used in surgical operations. Advanced surgical instruments can help doctors improve surgical efficiency and success rate. Among them, for heart valve stent replacement surgery, traditional open-chest surgery cannot accurately deliver the valve stent to the designated location, thereby increasing the complexity and risk of valve stent replacement surgery. By using a heart valve stent delivery device, the difficulty of valve stent replacement surgery can be effectively reduced.

[0003] The problem is that traditional open-chest surgery cannot accurately deliver the valve stent to the designated location, which increases the complexity and risk of valve stent replacement surgery. Utility Model Content

[0004] The utility model solves the technical problem that traditional open-chest surgery cannot accurately deliver the valve stent to the designated position, which increases the complexity and risk of valve stent replacement surgery. The delivery tube is controlled by a traction rope and a drive shaft to achieve precise delivery of the valve stent, achieving the technical effect of improving the accuracy and stability of valve stent delivery.

[0005] To solve the above problems, the utility model provides a heart valve stent delivery device, comprising: a shell, in which an installation space is provided; a delivery tube, in which a portion of the delivery tube is placed in the installation space and can move relative to the shell; a fixed shaft, which passes through the shell, one end of the fixed shaft is fixed to the shell, and the delivery tube is sleeved on the fixed shaft; a mounting seat, in which the mounting seat is fixed to one end of the fixed shaft away from the shell, and the mounting seat is placed inside the delivery tube; a driving device, the driving device comprising a traction rope and a driving shaft, the driving shaft is installed in the installation space, and the traction rope connects the delivery tube and the driving shaft; wherein a valve stent is sandwiched between the mounting seat and the delivery tube, and when the driving shaft rotates, the traction rope will drive the delivery tube to move in a direction away from the mounting seat, exposing the valve stent to the outside of the delivery tube.

[0006] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the traction rope connects the delivery tube and the drive shaft, and the delivery tube is controlled to move in a direction close to or away from the shell by the rotation of the drive shaft, so as to achieve the purpose of exposing the valve stent to the outside of the delivery tube, and the effect of accurately controlling the movement of the delivery tube can be achieved by controlling the rotation speed and number of rotations of the drive shaft, which not only improves the accuracy of the delivery device, but also increases the stability of the delivery device.

[0007] In one example of the utility model, the mounting seat includes: a mounting seat body, which is fixed to a fixed axis; a clamping component, which is installed on a side of the mounting seat body away from the shell; wherein, when the valve stent is placed in the delivery tube, the valve stent is installed on the clamping component.

[0008] Compared with the prior art, the technical effect achieved by adopting this technical solution is: the mounting seat body is fixed on the fixed shaft, so that the mounting seat body can provide a stable support force for the clamping component. The clamping component is installed on the side away from the shell. This design not only reduces the difficulty of installing the valve stent or releasing the valve stent, but also improves the accuracy and safety of the operation. Through this structure, doctors can more easily control the position and release process of the valve stent, thereby ensuring the success rate of the operation and the safety of the patient.

[0009] In an example of the utility model, the mounting seat further comprises a rotating wheel, which is mounted on a side of the mounting seat body close to the shell; wherein the traction rope passes through the rotating wheel and is then connected to the conveying pipe.

[0010] Compared with the prior art, the technical effect achieved by adopting this technical solution is: by installing the rotating wheel on the side of the mounting seat body close to the shell, it can provide support and change the direction of the traction rope. If both ends of the traction rope are directly connected to the conveying pipe, it is impossible to achieve two-way control of the conveying pipe. The traction rope is connected to the conveying pipe after passing through the rotating wheel. If the end of the traction rope close to the rotating wheel is pulled, the conveying pipe can move in the direction close to the rotating wheel.

[0011] In one example of the utility model, the conveying tube includes: a conveying tube body; a first traction member, which is installed on a side of the conveying tube body close to the shell; and a second traction member, which is installed on a side of the conveying tube body away from the shell; wherein one end of a traction rope is connected to the first traction member, and the other end is connected to the second traction member; when the drive shaft rotates, the traction rope drives the first traction member to move the conveying tube body away from the shell, and the traction rope drives the second traction member to move the conveying tube body toward the shell.

[0012] Compared with the prior art, the technical effect achieved by adopting this technical solution is that by installing the first traction member and the second traction member on the conveying tube body, the conveying tube body can be driven to move by pulling the first traction member or the second traction member. Because the position of the rotating wheel is fixed, the first traction member is installed on the side of the inner part of the conveying tube body close to the shell, which can effectively increase the distance between the first traction member and the rotating wheel, thereby increasing the traction range of the traction rope on the conveying tube body.

[0013] In one example of the utility model, the driving device also includes: a first winding post, the first winding post is installed in the installation space, and the traction rope is connected to the first traction member after passing through the first winding post; a second winding post, the second winding post is installed in the installation space, and the traction rope is connected to the second traction member after passing through the second winding post.

[0014] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by installing the first winding post and the second winding post in the installation space, the traction rope can be turned to the first traction member at the first winding post, and the traction rope can be turned to the second traction member at the second winding post. The first winding post and the second winding post not only provide support force for the traction rope, but also reduce the moving friction of the traction rope, so that the traction rope moves more smoothly.

[0015] In one example of the utility model, the delivery device also includes: a first blocking block, which is installed inside the shell near one end of the delivery tube; a second blocking block, which is installed inside the shell and is placed between the first blocking block and the drive shaft; wherein, when the delivery tube body moves away from the shell, the first blocking block will block the delivery tube body from separating from the shell; when the delivery tube body moves toward the shell, the second blocking block will block the delivery tube body from continuing to enter the installation space.

[0016] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: through the first blocking block, the delivery pipe can be blocked when the delivery pipe moves in the direction away from the shell, effectively preventing the delivery pipe from separating from the shell; through the second blocking block, the delivery pipe can be blocked when the delivery pipe moves in the direction close to the shell, effectively limiting the movement range of the delivery pipe.

[0017] In one example of the utility model, a rack portion is arranged on the outside of the conveying tube body, a gear is installed in the installation space corresponding to the rack portion, and the conveying tube body and the shell body complete relative movement through the cooperation of the gear and the rack portion.

[0018] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: through the coordination between the rack portion on the delivery tube and the gear in the installation space, the friction between the delivery tube and the shell is effectively reduced, the moving efficiency of the delivery tube is improved, and the accuracy of the delivery device is also improved.

[0019] In one example of the utility model, the driving shaft includes: a shaft body; a threaded portion, which is arranged on the shaft body; and a blocking member, which is installed on one end of the shaft body close to the threaded portion; wherein, when the traction rope is connected to the driving shaft, the traction rope is installed on the threaded portion.

[0020] Compared with the prior art, the technical effect achieved by adopting this technical solution is that by providing a threaded portion on the shaft body and installing the traction rope in the threaded portion, the connection stability between the traction rope and the shaft body can be increased. In addition, by providing a blocking member on the side of the shaft body close to the threaded portion, the traction rope can be prevented from detaching from the shaft body.

[0021] In one example of the utility model, the driving device also includes a motor, which is connected to the driving shaft. When the motor is working, it will drive the driving shaft to rotate, and control the rotation direction of the driving shaft, so as to control the conveying tube to move towards or away from the shell.

[0022] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: by connecting the drive shaft with the motor, the motor can provide a strong rotational force for the drive shaft, thereby driving the operation of the entire system. In addition, by accurately controlling the rotation direction and rotation speed of the motor, the movement direction and speed of the delivery tube can be effectively controlled to achieve precise operation of surgical instruments. This intelligent motor control system greatly simplifies the operation process and improves the accuracy and safety of the operation. Doctors can control the motor through simple operations to achieve precise positioning and movement of the delivery tube, thereby better completing the surgical operation and improving surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a heart valve stent delivery device provided by an embodiment of the utility model;

[0024] Figure 2 for Figure 1 A magnified image of area A;

[0025] Figure 3 for Figure 1 Enlarged view of area B;

[0026] Figure 4 for Figure 1 Enlarged view of the middle C area;

[0027] Figure 5 A schematic diagram of the structure of a motor and a drive shaft provided in an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 10-housing; 11-installation space; 20-conveying pipe; 21-conveying pipe body; 22-first traction member; 23-second traction member; 24-rack portion; 30-fixed shaft; 40-mounting seat; 41-mounting seat body; 42-clamping member; 43-rotating wheel; 50-driving device; 51-traction rope; 52-driving shaft; 521-shaft body; 522-threaded portion; 523-blocking member; 53-first winding post; 54-second winding post; 55-motor; 60-first blocking block; 70-second blocking block; 80-gear. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] See also Figures 1 to 5 The present embodiment provides a heart valve stent delivery device, comprising: a shell 10, in which an installation space 11 is provided; a delivery tube 20, in which a portion of the delivery tube 20 is disposed in the installation space 11 and can move relative to the shell 10; a fixed shaft 30, in which the fixed shaft 30 passes through the shell 10, one end of the fixed shaft 30 is fixed to the shell 10, and the delivery tube 20 is sleeved on the fixed shaft 30; a mounting seat 40, in which the mounting seat 40 is fixed to an end of the fixed shaft 30 away from the shell 10, and the mounting seat 40 is disposed inside the delivery tube 20; a driving device 50, in which the driving device 50 comprises a traction rope 51 and a driving shaft 52, in which the driving shaft 52 is mounted in the installation space 11, and the traction rope 51 connects the delivery tube 20 and the driving shaft 52; wherein a valve stent is sandwiched between the mounting seat 40 and the delivery tube 20, and when the driving shaft 52 rotates, the traction rope 51 will drive the delivery tube 20 to move in a direction away from the mounting seat 40, so that the valve stent is exposed to the outside of the delivery tube 20.

[0032] Specifically, part of the delivery tube 20 is placed inside the installation space 11, and part of it is placed outside the housing 10, and the delivery tube 20 can be retracted into the installation space 11 or extended out of the installation space 11. A drive shaft 52 and a traction rope 51 are installed in the installation space 11, and the traction rope 51 connects the delivery tube 20 to the drive shaft 52. The drive shaft 52 can drive the traction rope 51 to move by rotating itself, and the movement of the traction rope 51 will drive the delivery tube 20 to retract into or extend out of the installation space 11. In this embodiment, the valve stent is clamped between the mounting seat and the delivery tube 20. When the drive shaft 52 drives the traction rope 51 to retract the delivery tube 20 into the installation space 11, the valve stent will be exposed outside the delivery tube 20.

[0033] Furthermore, the mounting seat 40 includes: a mounting seat body 41, which is fixed to the fixed shaft 30; a clamping component 42, which is installed on the side of the mounting seat body 41 away from the shell 10; wherein, when the valve stent is placed in the delivery tube 20, the valve stent is installed on the clamping component 42.

[0034] Specifically, in this embodiment, the mounting seat body 41 is sleeved on the fixed shaft 30, wherein the valve stent is to be installed on the mounting seat body 41 from the side of the mounting seat body 41 away from the shell 10. Therefore, it is more convenient to install the valve stent by arranging the clamping part 42 on the side of the mounting seat body 41 away from the shell 10.

[0035] Furthermore, the mounting seat 40 further includes a rotating wheel 43 , which is mounted on a side of the mounting seat body 41 close to the shell 10 ; wherein the traction rope 51 passes through the rotating wheel 43 and is then connected to the conveying pipe 20 .

[0036] Specifically, if both ends of the traction rope 51 are directly fixed on the delivery pipe 20, it is impossible to pull the delivery pipe 20 in the opposite direction. Therefore, a rotating wheel 43 is installed on the side of the mounting seat body 41 close to the shell, so that one end of the traction rope 51 passes through the rotating wheel 43 and then connects to the delivery pipe 20. Thus, by providing a rotating wheel 43, bidirectional pulling of the delivery pipe 20 is achieved.

[0037] Furthermore, the conveying pipe 20 includes: a conveying pipe body 21; a first traction member 22, the first traction member 22 is installed on a side of the conveying pipe body 21 close to the shell 10; a second traction member 23, the second traction member 23 is installed on a side of the conveying pipe body 21 away from the shell 10; wherein one end of the traction rope 51 is connected to the first traction member 22, and the other end is connected to the second traction member 23; when the driving shaft 52 rotates, the traction rope 51 drives the first traction member 22 to move the conveying pipe body 21 away from the shell 10, and the traction rope 51 drives the second traction member 23 to move the conveying pipe body 21 toward the shell 10.

[0038] Specifically, the first traction member 22 is installed on a side of the conveying tube body 21 close to the shell 10, so that a sufficient traction distance can be left between the first traction member 22 and the rotating wheel 43; similarly, the second traction member 23 is installed on a side of the conveying tube body 21 away from the shell 10, so that a sufficient traction distance can be left between the second traction member 23 and the driving shaft 52.

[0039] Furthermore, the driving device 50 also includes: a first winding post 53, which is installed in the installation space 11, and the traction rope 51 is connected to the first traction member 22 after passing through the first winding post 53; a second winding post 54, which is installed in the installation space 11, and the traction rope 51 is connected to the second traction member 23 after passing through the second winding post 54.

[0040] Specifically, in this embodiment, the traction rope 51 is turned to the rotating wheel 43 at the first winding post 53, and the traction rope 51 is turned to the second traction member 23 at the second winding post 54. The first winding post 53 and the second winding post 54 can make the traction rope 51 move more smoothly.

[0041] Furthermore, the delivery device also includes: a first blocking block 60, which is installed inside the shell 10 near one end of the delivery tube 20; a second blocking block 70, which is installed inside the shell 10, and the second blocking block 70 is placed between the first blocking block 60 and the drive shaft 52; wherein, when the delivery tube body 21 moves away from the shell 10, the first blocking block 60 will block the delivery tube body 21 from separating from the shell 10; when the delivery tube body 21 moves toward the shell 10, the second blocking block 70 will block the delivery tube body 21 from continuing to enter the installation space 11.

[0042] Specifically, the first blocking block 60 can effectively prevent the conveying tube body 21 from separating from the shell 10 when it moves in a direction away from the shell 10, and the second blocking block 70 can effectively prevent the conveying tube body 21 from entering the installation space 11 too deeply when it moves in a direction close to the shell 10, thereby causing damage to other parts in the installation space 11; in this embodiment, the first blocking block 60 and the second blocking block 70 are both made of rubber material, which can block the conveying tube body 21 while protecting the conveying tube body 21 from damage and reducing vibration.

[0043] Furthermore, a rack portion 24 is disposed outside the delivery tube body 21 , and a gear 80 is installed in the installation space 11 corresponding to the rack portion 24 , so that the delivery tube body 21 and the housing 10 can move relative to each other through the cooperation between the gear 80 and the rack portion 24 .

[0044] Specifically, the delivery tube body 21 and the shell 10 are movably connected, and relative movement is achieved between them through the gear 80 and the rack portion 24, which not only reduces the friction between the delivery tube body 21 and the shell 10 and increases the service life of the delivery device, but also makes the control of the delivery tube body 21 more precise through the combination of the rack and the gear.

[0045] Furthermore, the driving shaft 52 includes: a shaft body 521; a threaded portion 522, the threaded portion 522 is arranged on the shaft body 521; a blocking member 523, the blocking member 523 is installed on one end of the shaft body 521 close to the threaded portion 522; wherein, when the traction rope 51 is connected to the driving shaft 52, the traction rope 51 is installed on the threaded portion 522.

[0046] Specifically, a threaded portion 522 is provided on the shaft body 521. When the traction rope 51 is connected to the driving shaft 52, the threaded portion 522 can make the connection of the traction rope 51 more stable, thereby increasing the stability of the delivery device. The blocking member 523 can effectively prevent the traction rope 51 from being separated from the shaft body 521.

[0047] Furthermore, the driving device 50 also includes a motor 55, which is connected to the driving shaft 52. When the motor 55 is working, it will drive the driving shaft 52 to rotate, and control the rotation direction of the driving shaft 52, so as to control the conveying tube 20 to move towards or away from the shell 10.

[0048] Specifically, the motor 55 is connected to the drive shaft 52, and the motor 55 is installed in the installation space 11. The motor 55 can drive the drive shaft 52 to rotate. Because the traction rope 51 is installed on the threaded portion 522 of the shaft body 521, the shaft body 521 rotates to drive the traction rope 51 to move. Therefore, by controlling the rotation direction and rotation speed of the motor 55, the movement direction and movement speed of the conveying tube 20 can be controlled.

[0049] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A heart valve stent delivery device, characterized in that: include: A housing (10), wherein an installation space (11) is provided in the housing (10); a delivery pipe (20), wherein a portion of the delivery pipe (20) is disposed in the installation space (11), and the delivery pipe (20) is movable relative to the housing (10); A fixed shaft (30), the fixed shaft (30) passing through the shell (10), one end of the fixed shaft (30) being fixed to the shell (10), and the delivery pipe (20) being sleeved on the fixed shaft (30); A mounting seat (40), the mounting seat (40) being fixed to an end of the fixed shaft (30) away from the housing (10), and the mounting seat (40) being disposed inside the delivery pipe (20); A driving device (50), the driving device (50) comprising a traction rope (51) and a driving shaft (52), the driving shaft (52) being installed in the installation space (11), and the traction rope (51) connecting the conveying pipe (20) and the driving shaft (52); A valve stent is sandwiched between the mounting seat (40) and the delivery tube (20). When the drive shaft (52) rotates, the traction rope (51) drives the delivery tube (20) to move away from the mounting seat (40), exposing the valve stent to the outside of the delivery tube (20).

2. The heart valve stent delivery device according to claim 1, characterized in that: The mounting seat (40) comprises: A mounting seat body (41), wherein the mounting seat body (41) is fixed to the fixed shaft (30); A clamping component (42), the clamping component (42) being mounted on a side of the mounting seat body (41) away from the housing (10); Wherein, when the valve stent is placed in the delivery tube (20), the valve stent is mounted on the clamping component (42).

3. The heart valve stent delivery device according to claim 2, characterized in that: The mounting seat (40) further comprises a rotating wheel (43), wherein the rotating wheel (43) is mounted on a side of the mounting seat body (41) close to the housing (10); Wherein, the traction rope (51) passes through the rotating wheel (43) and is then connected to the conveying pipe (20).

4. The heart valve stent delivery device according to claim 3, characterized in that: The delivery pipe (20) comprises: A conveying pipe body (21); A first pulling member (22), the first pulling member (22) being installed inside the conveying pipe body (21) on a side close to the shell (10); A second pulling member (23), the second pulling member (23) being installed on a side of the inside of the conveying pipe body (21) away from the shell (10); One end of the traction rope (51) is connected to the first traction member (22), and the other end is connected to the second traction member (23); when the driving shaft (52) rotates, the traction rope (51) drives the first traction member (22) to move the conveying tube body (21) away from the shell (10), and the traction rope (51) drives the second traction member (23) to move the conveying tube body (21) towards the shell (10).

5. The heart valve stent delivery device according to claim 4, characterized in that: The driving device (50) further comprises: A first winding post (53), wherein the first winding post (53) is installed in the installation space (11), and the traction rope (51) is connected to the first traction member (22) after passing through the first winding post (53); A second winding post (54), wherein the second winding post (54) is installed in the installation space (11), and the traction rope (51) is connected to the second traction member (23) after passing through the second winding post (54).

6. The heart valve stent delivery device according to claim 4, characterized in that: The delivery device further comprises: A first blocking block (60), the first blocking block (60) being installed inside the housing (10) and close to one end of the delivery pipe (20); a second blocking block (70), the second blocking block (70) being installed inside the housing (10), and the second blocking block (70) being disposed between the first blocking block (60) and the driving shaft (52); When the conveying tube body (21) moves in a direction away from the shell (10), the first blocking block (60) will block the conveying tube body (21) from separating from the shell (10); when the conveying tube body (21) moves in a direction approaching the shell (10), the second blocking block (70) will block the conveying tube body (21) from continuing to enter the installation space (11).

7. The heart valve stent delivery device according to claim 4, characterized in that: A rack portion (24) is arranged on the outside of the conveying tube body (21), a gear (80) is installed in the installation space (11) corresponding to the rack portion (24), and the conveying tube body (21) and the housing (10) can move relative to each other through the cooperation of the gear (80) and the rack portion (24).

8. The heart valve stent delivery device according to any one of claims 1 to 7, characterized in that: The drive shaft (52) comprises: Axle (521); A threaded portion (522), wherein the threaded portion (522) is disposed on the shaft body (521); A blocking member (523), the blocking member (523) being mounted on one end of the shaft body (521) close to the threaded portion (522); Wherein, when the traction rope (51) is connected to the driving shaft (52), the traction rope (51) is installed on the threaded portion (522).

9. The heart valve stent delivery device according to claim 8, characterized in that: The driving device (50) further comprises a motor (55), wherein the motor (55) is connected to the driving shaft (52). When the motor (55) is in operation, it drives the driving shaft (52) to rotate, and controls the rotation direction of the driving shaft (52), thereby controlling the conveying tube (20) to move towards or away from the housing (10).

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