Valve delivery device

Abstract

The application relates to the technical field of medical devices, and provides a valve delivery device, which at least comprises a handle part, the handle part comprising: a handle screw; an unlocking handle sleeved on the handle screw; a limiting buckle sleeved on the handle screw, a first limiting piece being arranged on the handle screw, a second limiting piece being arranged on the limiting buckle, the first limiting piece being clamped with the second limiting piece to limit the rotation of the limiting buckle relative to the handle screw when the limiting buckle is installed on the handle screw; a first synchronizing piece being arranged on the unlocking handle, a second synchronizing piece being arranged on the limiting buckle, the first synchronizing piece being clamped with the second synchronizing piece to keep the unlocking handle and the limiting buckle in synchronous movement when the limiting buckle is installed on the handle screw. The valve delivery device provided by the application can limit the rotation of the unlocking handle relative to the handle screw, and avoid the risk caused by the operation error of a doctor in the actual use process; moreover, the limiting buckle can be disassembled at any time, and the use is more convenient.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and specifically to a valve delivery device. Background Technology

[0002] A valve delivery system typically includes a loading tube, an outer sheath, and a handle. The loading tube, usually larger in outer diameter than the outer sheath, is used to load the valve. After being compressed and shrunk, the valve is loaded into the loading tube. One end of the outer sheath is connected to the loading tube, and the other end is connected to the handle. The handle mainly includes a handle screw, and a release handle and an unlocking handle fitted onto the handle screw. The release handle can be connected to an external delivery device via a connector, and the unlocking handle can be rotated or moved backward to control the release and separation of the valve from the delivery system within the loading tube. However, in existing valve delivery systems, the unlocking handle is in an automatically rotating state during use, which can lead to misoperation, affect valve release, and cause inconvenience to the operator. Summary of the Invention

[0003] Therefore, the present invention aims to solve the problem that in existing valve delivery systems, the unlocking handle is in an automatically rotating state during use, which can cause misoperation, affect valve release, and cause inconvenience to the operator, thereby providing a valve delivery device.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0005] This invention provides a valve delivery device, comprising at least: a handle portion, the handle portion including: a handle screw; an unlocking handle sleeved on the handle screw; and a limiting buckle sleeved on the handle screw. The handle screw is provided with a first limiting member, and the limiting buckle is provided with a second limiting member adapted to the first limiting member. When the limiting buckle is installed on the handle screw, the first limiting member and the second limiting member engage to restrict the limiting buckle from rotating relative to the handle screw. The unlocking handle is provided with a first synchronizing member, and the limiting buckle is provided with a second synchronizing member adapted to the first synchronizing member. When the limiting buckle is installed on the handle screw, the first synchronizing member and the second synchronizing member engage to keep the unlocking handle and the limiting buckle moving synchronously.

[0006] Furthermore, the limiting buckle is located on the proximal side of the unlocking handle.

[0007] Furthermore, the limiting buckle has a semi-annular structure; the first limiting member is a limiting groove provided on the outer surface of the handle screw, the limiting groove extending along the axial direction of the handle screw, and the second limiting member is a limiting protrusion provided on the inner sidewall of the limiting buckle; or, the first limiting member is a limiting protrusion provided on the outer surface of the handle screw, and the second limiting member is a limiting groove provided on the inner sidewall of the limiting buckle, the limiting groove extending along the axial direction of the limiting buckle.

[0008] Furthermore, when the second limiting member is a limiting protrusion disposed on the inner sidewall of the limiting buckle, the height range of the limiting protrusion along the radial direction of the limiting buckle is 3mm-5mm.

[0009] Furthermore, the limiting buckle has a semi-circular structure; the first synchronizing element is a first slot disposed on the end face of the unlocking handle near the limiting buckle, and the second synchronizing element is a pin disposed on the end face of the limiting buckle near the unlocking handle; or, the first synchronizing element is a pin disposed on the end face of the unlocking handle near the limiting buckle, and the second synchronizing element is a first slot disposed on the end face of the limiting buckle near the unlocking handle.

[0010] Furthermore, when the second limiting member is a limiting protrusion disposed on the inner sidewall of the limiting buckle, and when the second synchronizing member is a locking post disposed on the end face of the limiting buckle near the unlocking handle, the limiting protrusion extends along the axial direction of the limiting buckle and extends beyond the end face of the limiting buckle before connecting with the locking post as a whole.

[0011] Furthermore, the outer surface of the limiting buckle is provided with a number of spaced ribs; the second synchronizing member is a locking post provided on the end face of the limiting buckle near the unlocking handle, and when the locking post is located on the side facing the outer peripheral surface of the limiting buckle, a groove is provided on the side of the locking post, and the ribs directly opposite the groove are engaged in the groove.

[0012] Furthermore, the valve delivery device also includes a tail cap, which is sleeved on the handle screw, with the proximal end of the tail cap abutting against the distal end of the unlocking handle; the tail cap is provided with a first locking member, and the handle screw is provided with a second locking member adapted to the first locking member; when the tail cap is in a first position, the first locking member and the second locking member are locked to restrict the tail cap from moving along the axial direction of the handle screw; when the tail cap is rotated relative to the handle screw to a second position, the first locking member and the second locking member are unlocked to allow the tail cap to move along the axial direction of the handle screw.

[0013] Furthermore, the tail cap has a sleeve-shaped structure; the first locking member is a second slot provided on the inner wall of the tail cap, and the second locking member is an elastic protrusion provided on the outer surface of the handle screw; or, the first locking member is an elastic protrusion provided on the inner wall of the tail cap, and the second locking member is a second slot provided on the outer surface of the handle screw.

[0014] Furthermore, the outer surface of the handle screw is provided with a positioning protrusion, and the inner wall of the tail cap is provided with an arc groove that matches the positioning protrusion. When the tail cap is installed on the handle screw, the positioning protrusion is located in the arc groove.

[0015] The technical solution of this invention has the following advantages:

[0016] The valve delivery device provided by this invention is equipped with a limiting buckle. It is not installed during valve loading, thus not affecting the operation of the unlocking handle. The limiting buckle is installed after the valve is installed externally. A first and second synchronizing element ensures synchronized movement between the unlocking handle and the limiting buckle. The first and second limiting elements restrict the rotation of the limiting buckle relative to the handle screw, thereby restricting the rotation of the unlocking handle relative to the handle screw. This avoids the risk of errors caused by doctors' operation during actual use. Furthermore, the limiting buckle can be removed at any time, making it more convenient to use. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the valve delivery device in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the limiting buckle in the valve delivery device according to an embodiment of the present invention;

[0020] Figure 3 This is a side view of the limiting buckle in the valve delivery device according to an embodiment of the present invention;

[0021] Figure 4 This is a front view of the limiting buckle in the valve delivery device according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram from one perspective of the valve delivery device in an embodiment of the present invention when the limiting buckle and the unlocking handle are in a connected state.

[0023] Figure 6 This is a schematic diagram from another perspective when the limiting buckle and the unlocking handle are connected in the valve delivery device of the present invention.

[0024] Figure 7 This is a schematic diagram of the tail cap and handle screw in the locked state of the valve delivery device in an embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the valve delivery device in an embodiment of the present invention when the tail cap and the handle screw are in the unlocked state.

[0026] Figure 9 This is a schematic diagram of the handle screw in the valve delivery device according to an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the tail cap in the valve delivery device according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Handle part; 2. Handle screw; 3. Unlock handle; 4. Limiting buckle; 5. Tail end cover; 6. Release handle; 7. Limiting protrusion; 8. Limiting groove; 9. Locking post; 10. First locking groove; 11. Groove; 12. Rib; 13. Second locking groove; 14. Elastic protrusion; 15. Arc groove; 16. Positioning protrusion. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] like Figure 1 As shown, this embodiment provides a valve delivery device, comprising at least: a handle portion 1, the handle portion 1 including: a handle screw 2; an unlocking handle 3, sleeved on the handle screw 2, the unlocking handle 3 being in an automatically rotatable state on the handle screw 2; a limiting buckle 4, sleeved on the handle screw 2, the handle screw 2 having a first limiting member, the limiting buckle 4 having a second limiting member adapted to the first limiting member, when the limiting buckle 4 is installed on the handle screw 2, the first limiting member and the second limiting member engage to restrict the limiting buckle 4 from rotating relative to the handle screw 2; the unlocking handle 3 having a first synchronizing member, the limiting buckle 4 having a second synchronizing member adapted to the first synchronizing member, when the limiting buckle 4 is installed on the handle screw 2, the first synchronizing member and the second synchronizing member engage to keep the unlocking handle 3 and the limiting buckle 4 moving synchronously.

[0035] The valve delivery device provided in this embodiment is equipped with a limiting buckle 4. It is not installed during valve loading and does not affect the operation of the unlocking handle 3. The limiting buckle 4 is installed after the valve is installed outside the body. The first and second synchronizing components keep the unlocking handle 3 and the limiting buckle 4 moving synchronously. The first and second limiting components restrict the rotation of the limiting buckle 4 relative to the handle screw 2, thereby restricting the rotation of the unlocking handle 3 relative to the handle screw 2. This avoids the risk of doctor's operation errors during actual use. Moreover, the limiting buckle 4 can be removed at any time, making it more convenient to use.

[0036] like Figure 1 As shown, the limiting buckle 4 can be located on the proximal side of the unlocking handle 3.

[0037] like Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6As shown, the limiting buckle 4 has a semi-annular structure; the first limiting member is a limiting groove 8 provided on the outer surface of the handle screw 2, the limiting groove 8 extending along the axial direction of the handle screw 2; the second limiting member is a limiting protrusion 7 provided on the inner sidewall of the limiting buckle 4; or, the first limiting member is a limiting protrusion 7 provided on the outer surface of the handle screw 2, and the second limiting member is a limiting groove 8 provided on the inner sidewall of the limiting buckle 4, the limiting groove 8 extending along the axial direction of the limiting buckle 4. For example, the first limiting member can be a limiting groove 8 provided on the outer surface of the handle screw 2, and the second limiting member can be a limiting protrusion 7 provided on the inner sidewall of the limiting buckle 4, wherein the length of the limiting groove 8 along the axial direction of the handle screw 2 is not less than the length of the limiting protrusion 7, ensuring that the limiting protrusion 7 has sufficient space to be engaged in the limiting groove 8. For example, the limiting protrusion 7 can be a cuboid column structure, and the limiting protrusion 7 can be located in the middle of the limiting buckle 4. The limiting buckles 4 are symmetrical about the line containing the limiting protrusion 7. For example, the limiting buckle 4 can have a certain degree of elasticity. During installation, gently apply force to open the opening of the limiting buckle 4 so that it fits onto the outside of the handle screw 2. Under the action of elastic force, the limiting buckle 4 is tightened on the outer surface of the handle screw 2 to prevent it from falling off.

[0038] Specifically, when the second limiting member is a limiting protrusion 7 disposed on the inner sidewall of the limiting buckle 4, the height range of the limiting protrusion 7 protruding along the radial direction of the limiting buckle 4 is 3mm-5mm. For example, the height of the limiting protrusion 7 protruding along the radial direction of the limiting buckle 4 can be 4mm. In this case, the depth of the limiting groove 8 on the handle screw 2 is not less than 4mm, ensuring the limiting strength after the limiting protrusion 7 is engaged in the limiting groove 8.

[0039] The limiting buckle 4 has a semi-annular structure; the first synchronizing element is a first slot 10 disposed on the end face of the unlocking handle 3 near the limiting buckle 4, and the second synchronizing element is a locking post 9 disposed on the end face of the limiting buckle 4 near the unlocking handle 3; or, the first synchronizing element is a locking post 9 disposed on the end face of the unlocking handle 3 near the limiting buckle 4, and the second synchronizing element is a first slot 10 disposed on the end face of the limiting buckle 4 near the unlocking handle 3. For example, when the second synchronizing element is a locking post 9 disposed on the end face of the limiting buckle 4 near the unlocking handle 3, the locking post 9 can be a cuboid column structure, and the locking post 9 can be located in the middle of the limiting buckle 4, with the limiting buckle 4 symmetrical about the line containing the locking post 9. For example, the locking post 9 can be a semi-cylindrical locking post 9, with the side of the locking post 9 away from the limiting buckle 4 being a curved surface. Correspondingly, the first slot 10 can also be a semi-cylindrical first slot 10 to ensure that the two can be smoothly engaged.

[0040] Specifically, when the second limiting member is a limiting protrusion 7 disposed on the inner sidewall of the limiting buckle 4, and when the second synchronizing member is a locking post 9 disposed on the end face of the limiting buckle 4 near the unlocking handle 3, the limiting protrusion 7 extends along the axial direction of the limiting buckle 4 and extends beyond the end face of the limiting buckle 4 before connecting with the locking post 9 as a single unit. This configuration can improve the connection strength between the limiting protrusion 7 and the locking post 9, ensuring the limiting effect, and also making installation easier.

[0041] The limiting buckle 4 has several spaced ribs 12 on its outer surface, each rib 12 extending along the axial direction of the limiting buckle 4. The second synchronizing element is a locking post 9 located on the end face of the limiting buckle 4 near the unlocking handle 3. When the locking post 9 faces the outer peripheral surface of the limiting buckle 4, a groove 11 is provided on its side, and the ribs 12 opposite to the groove 11 engage with it. This design improves the connection strength between the locking post 9 and the limiting buckle 4, reducing the risk of the locking post 9 breaking.

[0042] In the valve delivery device described in the above embodiments, after the valve is released, the unlocking handle 3 needs to be rotated to control the valve unlocking. When it is determined that the valve needs to be finally unlocked, the limiting buckle 4 can be manually removed and the unlocking handle 3 can be rotated to unlock the valve.

[0043] The valve delivery device further includes a tail cap 5, which is sleeved on the handle screw 2, with the proximal end of the tail cap 5 abutting against the distal end of the unlocking handle 3. The tail cap 5 is provided with a first locking member, and the handle screw 2 is provided with a second locking member adapted to the first locking member. When the tail cap 5 is in a first position, the first locking member and the second locking member are locked to restrict the tail cap 5 from moving along the axial direction of the handle screw 2. When the tail cap 5 is rotated relative to the handle screw 2 to a second position, the first locking member and the second locking member are unlocked to allow the tail cap 5 to move along the axial direction of the handle screw 2.

[0044] like Figure 7 , Figure 8 , Figure 9 as well as Figure 10As shown, the tail cap 5 has a sleeve-shaped structure; the first locking member is a second slot 13 disposed on the inner wall of the tail cap 5. For example, the second slot 13 can be a rectangular slot that penetrates the side wall of the tail cap 5. The second locking member is an elastic protrusion 14 disposed on the outer surface of the handle screw 2; or, the first locking member is an elastic protrusion 14 disposed on the inner wall of the tail cap 5, and the second locking member is a second slot 13 disposed on the outer surface of the handle screw 2. For example, when the second locking member is an elastic protrusion 14 disposed on the outer surface of the handle screw 2, the elastic protrusion 14 can extend along the axial direction of the handle screw 2, and the distal end of the elastic protrusion 14 is tilted upward. For example, two elastic protrusions 14 can be disposed at 180° intervals on the handle screw 2, and correspondingly, two opposing second slots 13 can be disposed at 180° intervals on the inner wall of the tail cap 5. For example, the elastic protrusion 14 can be made of polymer materials such as ABS (a terpolymer of acrylonitrile, butadiene, and styrene), PC (polycarbonate), PP (polypropylene), etc. The elastic protrusion 14 can be compressed under a certain force. That is, when the tail cap 5 is sleeved on the handle screw 2, the elastic protrusion 14 is compressed downward. As the tail cap 5 continues to move, after the second slot 13 aligns with the elastic protrusion 14, the elastic protrusion 14 is no longer compressed and tilts upward and abuts against the groove wall of the second slot 13. At this time, the tail cap 5 cannot continue to move along the axial direction of the handle screw 2. If it is necessary to remove the tail cap 5, the tail cap 5 can be screwed to make the position of the second slot 13 and the elastic protrusion 14 misaligned. At this time, the elastic protrusion 14 is compressed again by the inner wall of the tail cap 5 and no longer plays a limiting role on the tail cap 5.

[0045] A positioning protrusion 16 is provided on the outer surface of the handle screw 2, and a corresponding arc groove 15 is provided on the inner wall of the tail cover 5. When the tail cover 5 is installed on the handle screw 2, the positioning protrusion 16 is located within the arc groove 15. When the tail cover 5 is rotated, the positioning protrusion 16 can only be confined within the arc groove 15, which can limit the rotation angle of the tail cover 5. For example, the groove depth of each arc groove 15 can be in the range of 0.1mm-0.3mm.

[0046] In this embodiment, the valve delivery device can be installed without removing the limiting buckle 4; at this time, the tail cover 5 is opened and the locking between the tail cover 5 and the handle screw 2 is opened, and the release handle 6 of the valve delivery device is rotated, thereby driving the limiting buckle 4 and the unlocking handle 3 to move towards the proximal end as a whole, so that the valve is unlocked.

[0047] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A valve delivery device, characterized in that, At least including: Handle portion (1), said handle portion (1) includes: Handle screw (2); Unlock handle (3) is fitted onto handle screw (2); A limiting buckle (4) is sleeved on the handle screw (2). The handle screw (2) is provided with a first limiting member, and the limiting buckle (4) is provided with a second limiting member that is compatible with the first limiting member. When the limiting buckle (4) is installed on the handle screw (2), the first limiting member and the second limiting member engage to restrict the limiting buckle (4) from rotating relative to the handle screw (2). The unlocking handle (3) is provided with a first synchronizing element, and the limiting buckle (4) is provided with a second synchronizing element that is compatible with the first synchronizing element. When the limiting buckle (4) is installed on the handle screw (2), the first synchronizing element and the second synchronizing element engage to make the unlocking handle (3) and the limiting buckle (4) move synchronously. It also includes a tail cap (5), which is fitted onto the handle screw (2), and the proximal end of the tail cap (5) abuts against the distal end of the unlocking handle (3); The tail cap (5) is provided with a first locking member, and the handle screw (2) is provided with a second locking member that is compatible with the first locking member. When the tail cap (5) is in the first position, the first locking member and the second locking member are locked to restrict the tail cap (5) from moving along the axial direction of the handle screw (2). When the tail cap (5) is rotated to the second position relative to the handle screw (2), the first locking member and the second locking member are unlocked to allow the tail cap (5) to move along the axial direction of the handle screw (2).

2. The valve delivery device according to claim 1, characterized in that, The limiting buckle (4) is located on the proximal side of the unlocking handle (3).

3. The valve delivery device according to claim 2, characterized in that, The limiting buckle (4) has a semi-circular structure; The first limiting member is a limiting groove (8) provided on the outer surface of the handle screw (2), the limiting groove (8) extends along the axial direction of the handle screw (2), and the second limiting member is a limiting protrusion (7) provided on the inner side wall of the limiting buckle (4). Alternatively, the first limiting member is a limiting protrusion (7) provided on the outer surface of the handle screw (2), and the second limiting member is a limiting groove (8) provided on the inner side wall of the limiting buckle (4), the limiting groove (8) extending along the axial direction of the limiting buckle (4).

4. The valve delivery device according to claim 3, characterized in that, When the second limiting member is a limiting protrusion (7) provided on the inner side wall of the limiting buckle (4), the height range of the limiting protrusion (7) protruding along the radial direction of the limiting buckle (4) is 3mm-5mm.

5. The valve delivery device according to claim 3, characterized in that, The limiting buckle (4) has a semi-circular structure; The first synchronizing element is a first slot (10) provided on the end face of the unlocking handle (3) near the limiting buckle (4), and the second synchronizing element is a pin (9) provided on the end face of the limiting buckle (4) near the unlocking handle (3). Alternatively, the first synchronizing element is a locking post (9) disposed on the end face of the unlocking handle (3) near the limiting buckle (4), and the second synchronizing element is a first locking groove (10) disposed on the end face of the limiting buckle (4) near the unlocking handle (3).

6. The valve delivery device according to claim 5, characterized in that, When the second limiting member is a limiting protrusion (7) provided on the inner side wall of the limiting buckle (4), and when the second synchronizing member is a locking post (9) provided on the end face of the limiting buckle (4) near the unlocking handle (3), the limiting protrusion (7) extends along the axial direction of the limiting buckle (4) and extends beyond the end face of the limiting buckle (4) before connecting with the locking post (9) as a whole.

7. The valve delivery device according to claim 5, characterized in that, The outer side of the limiting buckle (4) is provided with a number of spaced ribs (12); When the second synchronizing element is a locking post (9) located on the end face of the limiting buckle (4) near the unlocking handle (3), the locking post (9) has a groove (11) on the side facing the outer peripheral surface of the limiting buckle (4), and the rib (12) opposite to the groove (11) is inserted into the groove (11).

8. The valve delivery device according to claim 1, characterized in that, The tail cap (5) is a sleeve-shaped structure; The first locking element is a second slot (13) provided on the inner wall of the tail cap (5), and the second locking element is an elastic protrusion (14) provided on the outer surface of the handle screw (2). Alternatively, the first locking element is an elastic protrusion (14) provided on the inner wall of the tail cap (5), and the second locking element is a second slot (13) provided on the outer surface of the handle screw (2).

9. The valve delivery device according to claim 8, characterized in that, The outer surface of the handle screw (2) is provided with a positioning protrusion (16), and the inner wall of the tail cover (5) is provided with an arc groove (15) that matches the positioning protrusion (16). When the tail cover (5) is installed on the handle screw (2), the positioning protrusion (16) is located in the arc groove (15).

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