Valve conveying device

Abstract

The invention relates to the technical field of medical instruments, and provides a valve conveying device which at least comprises a handle part, a valve conveying part and a valve conveying part. The unlocking handle is arranged on the handle screw rod in a sleeving manner; the limiting buckle is arranged on the handle screw rod in a sleeving mode, a first limiting piece is arranged on the handle screw rod, a second limiting piece is arranged on the limiting buckle, and when the limiting buckle is installed on the handle screw rod, the first limiting piece and the second limiting piece are clamped to limit rotation of the limiting buckle relative to the handle screw rod; the unlocking handle is provided with a first synchronous part, the limiting buckle is provided with a second synchronous part, and when the limiting buckle is installed on the handle screw rod, the first synchronous part and the second synchronous part are clamped so that the unlocking handle and the limiting buckle can keep moving synchronously. According to the valve conveying device, rotation of the unlocking handle relative to the handle screw can be limited, and the risk caused by mistaken operation of a doctor in the actual use process is avoided; in addition, the limiting buckles can be detached at any time, and use is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a valve delivery device. Background Art

[0002] A valve delivery system generally includes a loading tube, an outer sheath tube, and a handle part. Among them, the outer diameter of the loading tube is usually larger than that of the outer sheath tube and is used to load the valve. After the valve is compressed and reduced, it is loaded into this loading tube; one end of the outer sheath tube is connected to the loading tube, and the other end is connected to the handle part; the handle part mainly includes a handle screw, a release handle and an unlocking handle sleeved on the handle screw. Among them, the release handle can be connected to an external delivery device through a joint, and the unlocking handle can control the unlocking and separation between the valve in the loading tube and the delivery system by rotating or moving backward. However, during the use of the existing valve delivery system, the unlocking handle itself is in a state of being able to rotate automatically, which will cause misoperation, affect valve release, and bring inconvenience to the operator. Summary of the Invention

[0003] Therefore, the present invention aims to solve the problem that in the existing valve delivery system in the prior art, during use, the unlocking handle itself is in a state of being able to rotate automatically, which will cause misoperation, affect valve release, and bring inconvenience to the operator, so as to provide a valve delivery device.

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

[0005] The present invention provides a valve delivery device, which at least includes: a handle part, and the handle part includes: a handle screw; an unlocking handle sleeved on the handle screw; a limit buckle sleeved on the handle screw. A first limiting member is provided on the handle screw, and a second limiting member adapted to the first limiting member is provided on the limit buckle. When the limit buckle is installed on the handle screw, the first limiting member is engaged with the second limiting member to limit the rotation of the limit buckle relative to the handle screw; a first synchronizing member is provided on the unlocking handle, and a second synchronizing member adapted to the first synchronizing member is provided on the limit buckle. When the limit buckle is installed on the handle screw, the first synchronizing member is engaged with the second synchronizing member to make the unlocking handle and the limit buckle move synchronously.

[0006] Further, the limit buckle is located on the proximal side of the unlocking handle.

[0007] Further, the limit snap is of a semi-circular structure; the first limiting member is a limiting groove provided on the outer surface of the handle screw, and the limiting groove extends along the axial direction of the handle screw, and the second limiting member is a limiting protrusion provided on the inner side wall of the limit snap; alternatively, 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 side wall of the limit snap, and the limiting groove extends along the axial direction of the limit snap.

[0008] Further, when the second limiting member is a limiting protrusion provided on the inner side wall of the limit snap, the height range of the limiting protrusion protruding along the radial direction of the limit snap is 3 mm - 5 mm.

[0009] Further, the limit snap is of a semi-circular structure; the first synchronizing member is a first card slot provided on the end face of the unlocking handle close to the limit snap, and the second synchronizing member is a card post provided on the end face of the limit snap close to the unlocking handle; alternatively, the first synchronizing member is a card post provided on the end face of the unlocking handle close to the limit snap, and the second synchronizing member is a first card slot provided on the end face of the limit snap close to the unlocking handle.

[0010] Further, when the second limiting member is a limiting protrusion provided on the inner side wall of the limit snap, and when the second synchronizing member is a card post provided on the end face of the limit snap close to the unlocking handle, the limiting protrusion extends along the axial direction of the limit snap and extends beyond the end face of the limit snap and is connected to the card post as a whole.

[0011] Further, a plurality of spaced ribs are provided on the outer side surface of the limit snap; when the second synchronizing member is a card post provided on the end face of the limit snap close to the unlocking handle, a groove is provided on the side surface of the card post facing the outer peripheral surface of the limit snap, and the rib opposite to the groove is snapped into the groove.

[0012] Further, the valve delivery device further includes a tail end cap sleeved on the handle screw, and the proximal end of the tail end cap abuts against the distal end of the unlocking handle; a first locking member is provided on the tail end cap, and a second locking member adapted to the first locking member is provided on the handle screw; when the tail end cap is in the first position, the first locking member and the second locking member are in a locked state to limit the movement of the tail end cap along the axial direction of the handle screw; when the tail end cap rotates relative to the handle screw to the second position, the first locking member and the second locking member are in an unlocked state to enable the tail end cap to move along the axial direction of the handle screw.

[0013] Further, the tail end cover is of a sleeve-like structure; the first locking member is a second card slot provided on the inner wall of the tail end cover, and the second locking member is an elastic protrusion provided on the outer surface of the handle screw; alternatively, the first locking member is an elastic protrusion provided on the inner wall of the tail end cover, and the second locking member is a second card slot provided on the outer surface of the handle screw.

[0014] Further, a positioning protrusion is provided on the outer surface of the handle screw, and an arc groove adapted to the positioning protrusion is provided on the inner wall of the tail end cover. When the tail end cover is installed on the handle screw, the positioning protrusion is located in the arc groove.

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

[0016] The valve delivery device provided by the present invention is provided with a limit buckle. When loading the valve, it is not installed, which does not affect the operation of the unlocking handle. After the valve is installed outside the body, the limit buckle is installed again. The unlocking handle and the limit buckle are kept in synchronous movement through the first synchronizing member and the second synchronizing member, and the relative rotation of the limit buckle with respect to the handle screw is restricted by the first limiting member and the second limiting member, thereby restricting the relative rotation of the unlocking handle with respect to the handle screw, and avoiding the risk brought by the doctor's misoperation during actual use; moreover, the limit buckle can be disassembled at any time, making it more convenient to use. Description of the Drawings

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

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

[0019] Figure 2 It is a schematic diagram of the limit buckle in the valve delivery device in the embodiment of the present invention;

[0020] Figure 3 It is a side view of the limit buckle in the valve delivery device in the embodiment of the present invention;

[0021] Figure 4 It is a front view of the limit buckle in the valve delivery device in the embodiment of the present invention;

[0022] Figure 5 It is a schematic diagram of the limit buckle and the unlocking handle in a connected state in the valve delivery device in the embodiment of the present invention from one perspective;

[0023] Figure 6 A schematic diagram of another perspective when the limit buckle and the unlocking handle in the valve delivery device in the embodiment of the present invention are in a connected state;

[0024] Figure 7 A schematic diagram of the valve delivery device in the embodiment of the present invention when the end cap and the handle screw are in a locked state;

[0025] Figure 8 A schematic diagram of the valve delivery device in the embodiment of the present invention when the end cap and the handle screw are in an unlocked state;

[0026] Figure 9 A schematic diagram of the handle screw in the valve delivery device in the embodiment of the present invention;

[0027] Figure 10 A schematic diagram of the end cap in the valve delivery device in the embodiment of the present invention.

[0028] Explanation of reference numerals:

[0029] 1. Handle part; 2. Handle screw; 3. Unlocking handle; 4. Limit buckle; 5. End cap; 6. Release handle; 7. Limit projection; 8. Limit groove; 9. Column; 10. First card slot; 11. Groove; 12. Rib; 13. Second card slot; 14. Elastic projection; 15. Arc groove; 16. Positioning convex. Detailed implementation manners

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the technical features involved in 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] As Figure 1 shown, this embodiment provides a valve delivery device, which at least includes: a handle part 1, and the handle part 1 includes: a handle screw 2; an unlocking handle 3 sleeved on the handle screw 2, and the unlocking handle 3 is in a state of being able to rotate automatically on the handle screw 2; a limit buckle 4 sleeved on the handle screw 2, a first limiting member is provided on the handle screw 2, and a second limiting member adapted to the first limiting member is provided on the limit buckle 4. When the limit buckle 4 is installed on the handle screw 2, the first limiting member and the second limiting member are engaged to limit the rotation of the limit buckle 4 relative to the handle screw 2; a first synchronizing member is provided on the unlocking handle 3, and a second synchronizing member adapted to the first synchronizing member is provided on the limit buckle 4. When the limit buckle 4 is installed on the handle screw 2, the first synchronizing member and the second synchronizing member are engaged to make the unlocking handle 3 and the limit buckle 4 move synchronously.

[0035] For the valve delivery device provided in this embodiment, a limit buckle 4 is provided. When loading the valve, it is not installed, which does not affect the operation of the unlocking handle 3. After the valve is installed outside the body, the limit buckle 4 is installed again. The first synchronizing member and the second synchronizing member are used to make the unlocking handle 3 and the limit buckle 4 move synchronously, and the first limiting member and the second limiting member are used to limit the rotation of the limit buckle 4 relative to the handle screw 2, thereby restricting the rotation of the unlocking handle 3 relative to the handle screw 2, avoiding the risk brought by the doctor's misoperation during actual use; moreover, the limit buckle 4 can be disassembled at any time, making it more convenient to use.

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

[0037] As Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, the limit buckle 4 is a semi-circular structure; the first limiting member is a limiting groove 8 provided on the outer surface of the handle screw 2, and the limiting groove 8 extends along the axial direction of the handle screw 2. The second limiting member is a limiting protrusion 7 provided on the inner side wall of the limit 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 limit buckle 4, and the limiting groove 8 extends along the axial direction of the limit buckle 4. For example, the first limiting member can be the limiting groove 8 provided on the outer surface of the handle screw 2, and the second limiting member can be the limiting protrusion 7 provided on the inner side wall of the limit buckle 4. Among them, along the axial direction of the handle screw 2, the length of the limiting groove 8 is not less than the length of the limiting protrusion 7 to ensure that there is enough space for the limiting protrusion 7 to be inserted into the limiting groove 8. For example, the limiting protrusion 7 can be a columnar structure in the shape of a cuboid, and the limiting protrusion 7 can be located at the middle position of the limit buckle 4, and the limit buckle 4 is symmetric about the straight line where the limiting protrusion 7 is located. For example, the limit buckle 4 can have a certain elasticity. During installation, gently separate the opening of the limit buckle 4 with a little force to make it sleeved on the outer surface of the handle screw 2. Under the action of the elastic force, the limit buckle 4 is tightened on the outer surface of the handle screw 2 to prevent it from falling off.

[0038] Among them, when the second limiting member is the limiting protrusion 7 provided on the inner side wall of the limit buckle 4, the height range of the limiting protrusion 7 protruding along the radial direction of the limit buckle 4 is 3 mm - 5 mm. For example, the height of the limiting protrusion 7 protruding along the radial direction of the limit buckle 4 can be 4 mm. At this time, correspondingly, the depth of the limiting groove 8 on the handle screw 2 is not less than 4 mm to ensure the strength of the limit after the limiting protrusion 7 is inserted into the limiting groove 8.

[0039] Among them, the limit buckle 4 is a semi-circular structure; the first synchronizing member is a first card slot 10 provided on the end face of the unlocking handle 3 close to the limit buckle 4, and the second synchronizing member is a card post 9 provided on the end face of the limit buckle 4 close to the unlocking handle 3; alternatively, the first synchronizing member is a card post 9 provided on the end face of the unlocking handle 3 close to the limit buckle 4, and the second synchronizing member is a first card slot 10 provided on the end face of the limit buckle 4 close to the unlocking handle 3. For example, when the second synchronizing member is the card post 9 provided on the end face of the limit buckle 4 close to the unlocking handle 3, the card post 9 can be a columnar structure in the shape of a cuboid, and the card post 9 can be located at the middle position of the limit buckle 4, and the limit buckle 4 is symmetric about the straight line where the card post 9 is located. For example, the card post 9 can be a semi-cylindrical card post 9, and the side of the card post 9 away from the limit buckle 4 is a curved surface. Correspondingly, the first card slot 10 can be a semi-cylindrical first card slot 10 to ensure that the two can be smoothly engaged.

[0040] Wherein, 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 clamping post 9 provided on the end face of the limiting buckle 4 close to 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 and then is integrally connected to the clamping post 9. With such a setting, the connection strength between the limiting protrusion 7 and the clamping post 9 can be improved, the limiting effect can be ensured, and at the same time, it is also more convenient for installation.

[0041] Wherein, a plurality of spaced ribs 12 are provided on the outer side surface of the limiting buckle 4, and each rib 12 can extend along the axial direction of the limiting buckle 4. When the second synchronizing member is a clamping post 9 provided on the end face of the limiting buckle 4 close to the unlocking handle 3, a groove 11 is provided on the side surface of the clamping post 9 facing the outer peripheral surface of the limiting buckle 4, and the rib 12 opposite to the groove 11 is snapped into the groove 11. With such a setting, the connection strength between the clamping post 9 and the limiting buckle 4 can be improved, and the risk of the clamping post 9 being broken can be reduced.

[0042] In the valve delivery device in the above embodiments, after the valve is released, it is necessary to rotate the unlocking handle 3 to control the unlocking of the valve. 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] Wherein, the valve delivery device further includes a tail end cap 5 sleeved on the handle screw rod 2, and the proximal end of the tail end cap 5 abuts against the distal end of the unlocking handle 3; a first locking member is provided on the tail end cap 5, and a second locking member adapted to the first locking member is provided on the handle screw rod 2; when the tail end cap 5 is in the first position, the first locking member and the second locking member are in a locked state to limit the movement of the tail end cap 5 along the axial direction of the handle screw rod 2; when the tail end cap 5 rotates relative to the handle screw rod 2 to the second position, the first locking member and the second locking member are in an unlocked state, so that the tail end cap 5 can move along the axial direction of the handle screw rod 2.

[0044] Such as Figure 7 、 Figure 8 、 Figure 9 and Figure 10As shown, the tail cover 5 is a sleeve-shaped structure; the first locking member is a second slot 13 provided on the inner wall of the tail cover 5. For example, the second slot 13 can be a rectangular slot that extends through the side wall of the tail cover 5; and the second locking member is an elastic protrusion 14 provided on the outer surface of the handle screw 2. Alternatively, the first locking member is an elastic protrusion 14 provided on the inner wall of the tail cover 5, and the second locking member is a second slot 13 provided on the outer surface of the handle screw 2. For example, when the second locking member is an elastic protrusion 14 provided 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 can be tilted upward. For example, two elastic protrusions 14 can be provided on the handle screw 2 at an interval of 180 degrees, and correspondingly, two second slots 13 can be provided on the inner wall of the tail cover 5 at an interval of 180 degrees, facing each other. For example, the elastic protrusion 14 can be made of a polymer material such as ABS (a terpolymer of three monomers: 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 end cover 5 is sleeved on the handle screw 2, the elastic protrusion 14 is compressed downward. As the tail end cover 5 continues to move, the second slot 13 is aligned with the elastic protrusion 14, and the elastic protrusion 14 is no longer compressed and rises upward and abuts against the slot wall of the second slot 13. At this time, the tail end cover 5 cannot continue to move along the axial direction of the handle screw 2; if the tail end cover 5 needs to be removed, the tail end cover 5 can be screwed to stagger the position of the second slot 13 and the elastic protrusion 14. At this time, the elastic protrusion 14 is compressed again by the inner wall of the tail end cover 5 and no longer serves to limit the tail end cover 5.

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

[0046] The valve delivery device in this embodiment does not require the removal of the limit buckle 4; at this time, the tail cover 5 opens the lock between the tail cover 5 and the handle screw 2, and the release handle 6 of the valve delivery device continues to be rotated, thereby driving the limit buckle 4 and the unlocking handle 3 to move as a whole in the proximal direction, so that the valve is unlocked.

[0047] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A valve delivery device, characterized in that, At least including: A handle part (1), and the handle part (1) includes: A handle screw (2); An unlocking handle (3) sleeved on the handle screw (2); A limit buckle (4) sleeved on the handle screw (2), a first limiting member is arranged on the handle screw (2), a second limiting member adapted to the first limiting member is arranged on the limit buckle (4), when the limit buckle (4) is installed on the handle screw (2), the first limiting member and the second limiting member are engaged to limit the rotation of the limit buckle (4) relative to the handle screw (2); A first synchronizing member is arranged on the unlocking handle (3), a second synchronizing member adapted to the first synchronizing member is arranged on the limit buckle (4), when the limit buckle (4) is installed on the handle screw (2), the first synchronizing member and the second synchronizing member are engaged to make the unlocking handle (3) and the limit buckle (4) move synchronously.

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

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

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

5. The valve delivery device according to claim 3, wherein The limit buckle (4) is of a semi-circular structure; The first synchronizing member is a first clamping groove (10) arranged on the end face of the unlocking handle (3) close to the limit buckle (4), and the second synchronizing member is a clamping post (9) arranged on the end face of the limit buckle (4) close to the unlocking handle (3); Or, the first synchronizing member is a clamping post (9) arranged on the end face of the unlocking handle (3) close to the limit buckle (4), and the second synchronizing member is a first clamping groove (10) arranged on the end face of the limit buckle (4) close to the unlocking handle (3).

6. The valve delivery device according to claim 5, wherein 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 clamping post (9) provided on the end face of the limiting buckle (4) close to 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) and then is integrally connected to the clamping post (9).

7. The valve delivery device according to claim 5, wherein a plurality of spaced ribs (12) are provided on the outer side surface of the limiting buckle (4); when the second synchronizing member is a clamping post (9) provided on the end face of the limiting buckle (4) close to the unlocking handle (3), a groove (11) is provided on the side surface of the clamping post (9) facing the outer peripheral surface of the limiting buckle (4), and the rib (12) opposite to the groove (11) is snapped into the groove (11).

8. The valve delivery device according to claim 1, wherein it further includes a tail end cover (5) sleeved on the handle screw rod (2), and the proximal end of the tail end cover (5) abuts against the distal end of the unlocking handle (3); a first locking member is provided on the tail end cover (5), and a second locking member adapted to the first locking member is provided on the handle screw rod (2); when the tail end cover (5) is in the first position, the first locking member and the second locking member are in a locked state to limit the movement of the tail end cover (5) along the axial direction of the handle screw rod (2); when the tail end cover (5) rotates relative to the handle screw rod (2) to the second position, the first locking member and the second locking member are in an unlocked state to enable the tail end cover (5) to move along the axial direction of the handle screw rod (2).

9. The valve delivery device according to claim 8, wherein the tail end cover (5) is of a sleeve-like structure; the first locking member is a second clamping groove (13) provided on the inner wall of the tail end cover (5), and the second locking member is an elastic protrusion (14) provided on the outer surface of the handle screw rod (2); alternatively, the first locking member is an elastic protrusion (14) provided on the inner wall of the tail end cover (5), and the second locking member is a second clamping groove (13) provided on the outer surface of the handle screw rod (2).

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

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