CN111182859B

CN111182859B - Protection and retraction assistance device for interventional valve system

Info

Publication number: CN111182859B
Application number: CN201980003542.5A
Authority: CN
Inventors: 钟生平; 孟春旺; 张波
Original assignee: Kingstronbio Changshu Co ltd
Current assignee: Kingstronbio Changshu Co ltd
Priority date: 2019-03-15
Filing date: 2019-05-13
Publication date: 2021-08-27
Anticipated expiration: 2039-05-13
Also published as: EP4011327A1; CN111182859A; EP4011327A4; US20220280294A1

Abstract

A protection and retraction auxiliary device of an intervention valve system (1), wherein the intervention valve system (1) comprises a valve (11) and a delivery system, and the valve (11) is fixed on a distal rod body (12) of the delivery system; the protection and income assisting device comprises: a first protector (2), a second protector (3) and a third protector (4); the first protection piece (2) is positioned at the front end of the far-end rod body (12), and the first protection piece (2) forms a half-surrounding to the valve (11); the third protection piece (4) is used for fixing and sleeved on the far-end rod body (12); in the protection state, the first protection piece (2) and the third protection piece (4) are matched at a first position; in the auxiliary state of the valve (11) retraction, the first protection member (2) and the third protection member (4) are engaged in the second position. The valve (11) is protected during storage and transportation, and when the valve needs to be retracted, the valve (11) can be retracted only by changing the relative positions of the first protection piece (2) and the third protection piece (4) and the extrusion force of the second protection piece (3) on the valve and matching with the action of a conveying system.

Description

Protection and retraction assistance device for interventional valve system

The present application claims priority from the chinese patent application filed on 2019, 3/15, under the name "protection and revenue assistance device for interventional valve systems", the application number 201920331042.1, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of medical devices, and more particularly, to a protection and retraction assistance device for an interventional valve system.

Background

In the intervention valve system in the prior art, according to the storage mode of the valve, the intervention valve system is mainly divided into a wet valve stored by special preservation solution and a dry valve processed by a special dry method at present, and the dry valve is divided into two modes of preoperative field assembly and factory pre-assembly (total income or half income). And proved by demonstration, the semi-income valve system preassembly form of a manufacturer has very obvious advantages compared with other valve systems. At the same time, however, the semi-income pre-installed valve system form of the manufacturer also puts higher requirements on the matched protection and the devices used for field assembly.

Therefore, there is a need for a protection and revenue assisting device that is simple in structure and simplified in operation.

Disclosure of Invention

The present application provides a protection and retraction assistance device for an intervention valve to solve the problems of the prior art to simplify the operation.

The application provides a protection and retraction auxiliary device of an intervention valve system, wherein the intervention valve system comprises a valve and a delivery system, and the valve is fixedly arranged on a distal rod body of the delivery system through a connecting device in the delivery system; wherein the protection and revenue assisting apparatus comprises:

the first protection piece and the second protection piece can be matched oppositely; the first protector is positioned on one side close to the distal rod body, and the first protector forms a half-surrounding for the valve;

the third protection piece is used for fixing and sleeving the far-end rod body;

in a protection state, the first protection member and the third protection member are matched at a first position;

in a valve retraction-assisted state, the first protector and the third protector are mated in a second position;

the second position is distal to the valve relative to the first position.

Preferably, the first protector includes a first large diameter portion, a first tapered portion, and a first small diameter portion which are provided in this order;

the second protector comprises a second large-diameter part, a second conical part and a second small-diameter part which are arranged in sequence;

the first large diameter part is matched with the second large diameter part;

the first small diameter portion is fitted with the third protector.

Preferably, the third protector includes a sleeve and a lock;

the first end of the sleeve is fixedly sleeved with the first small-diameter part;

the far-end rod body comprises a thick rod and a thin rod; the sleeve is sleeved on the thick rod; the locking piece is matched with the first step between the thick rod and the thin rod and is fixedly sleeved with the second end of the sleeve.

Preferably, the sleeve comprises a main body and a grip portion;

a second step is arranged between the main body and the holding part;

the second step serves as the second position in the valve-retraction-assisted state.

Preferably, the outer surface of the grip portion has embossments.

Preferably, the sleeve is provided with air holes.

Preferably, the outer wall of the sleeve is provided with a limit groove;

the inner wall of the first small-diameter part is provided with a limiting block;

the limiting block is matched with the limiting groove at the first position.

Preferably, the limiting groove comprises a vertical groove formed along the axial direction of the sleeve and a transverse groove perpendicular to the vertical groove;

when the limiting block is matched with the end part, far away from the vertical groove, of the transverse groove, the matching position serves as the first position.

Preferably, the locking member includes an upper fixing portion and a lower fixing portion;

the upper fixing part comprises a first half conical pipe and a first head part;

the lower fixing part comprises a second semi-conical tube and a second head part;

the first semi-conical pipe and the second semi-conical pipe are buckled with each other and extend into the sleeve from the second end of the sleeve after buckling;

the first head and the second head are buckled with each other, and the buckled first head is sleeved on the thin rod and matched with the first step between the thick rod and the thin rod.

Preferably, the first head part is provided with an upper limiting hole and/or an upper limiting column;

the second head is provided with a lower limiting hole and/or a lower limiting column;

the upper limiting hole is matched with the lower limiting column;

the lower limiting hole is matched with the upper limiting column.

The technical scheme provided by the application can achieve the following beneficial effects:

the utility model provides a protection of intervention valve system and income auxiliary device, including first protection piece and the second protection piece that can relatively the lock formation holds the chamber, still include the third protection piece. The first protection piece is positioned at one side close to the distal rod body of the conveying system, and the first protection piece forms half-surrounding to the valve; the third protection piece is used for fixing and sleeving the rod body at the far end of the conveying system; in the protection state, the first protection piece and the third protection piece are matched at the first position; in the valve retraction assisting state, the first protector and the third protector are engaged in the second position. Through above-mentioned structure, realized that the valve is protected when transporting, when needs are received, only through changing the relative position of first protection piece and third protection piece to through the extrusion deformation of second protection piece to the valve, the income action of cooperation conveying system can realize the income of valve, has simplified the operation from this, and whole device structure is simpler moreover.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an exploded view of a protection and retraction assistance device for an interventional valve system according to an embodiment of the present application;

FIG. 2 is an angled configuration of the first guard;

FIG. 3 is a schematic view of another angular configuration of the first protector;

FIG. 4 is a schematic structural view of a second protector;

FIG. 5 is a schematic view of a sleeve of the third protector;

FIG. 6 is an exploded view of the structure of the locking member in the third shielding member;

FIG. 7 is a schematic view of a protection and retraction assistance device of an interventional valve system in a first position according to an embodiment of the present disclosure;

fig. 8 is a schematic view of a protection and retraction assistance device of an interventional valve system in a second position according to an embodiment of the present disclosure.

Reference numerals:

1-an interventional valve system;

11-a valve;

12-a distal shaft body;

121-thick rod;

122-thin rod;

123-a first step;

2-a first protection member;

21-a first large diameter portion;

22-a first conical portion;

23-a first small diameter portion;

24-a stopper;

3-a second protection;

31-a second large diameter portion;

32-a second tapered portion;

33-a second small diameter portion;

34-a conical surface;

4-a third protection;

41-a sleeve;

411-a body;

412-a grip portion;

413-air holes;

414-a limit groove;

415-a second step;

416-a tapered hole;

42-a locking element;

421-upper fixing part;

421 a-first half cone;

421 b-first head;

422-lower fixed part;

422 a-a second half cone;

422 b-a second head;

422 c-lower limiting orifice;

422 d-lower limiting column.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1, the present embodiment provides a protection and retraction assistance device for an interventional valve system 1, where the interventional valve system 1 includes a valve 11 and a delivery system, and the valve 11 is fixedly disposed at a first end of a distal shaft 12 of the delivery system through a connection device in the delivery system.

The protection and retraction assisting device comprises a first protection member 2 and a second protection member 3 which can be oppositely matched, and also comprises a third protection member 4. The first protector 2 is located on the side close to the distal stem 12, and the first protector 2 forms a half-enclosure for the valve 11. The third protection member 4 is fixed to and fitted over the distal rod 12.

In the protection state, the first protector 2 and the third protector 4 are engaged in the first position (see fig. 7), and in the valve 11 storage assist state, the first protector 2 and the third protector 4 are engaged in the second position (see fig. 8). The second position is distal to the valve 11 relative to the first position.

In the present embodiment, the first protector 2 is hollow and has two open ends, and the second protector 3 is also hollow and has two open ends. The first protection piece 2 and the second protection piece 3 can form an accommodating cavity after being buckled; in the transportation, first protector 2 can play the guard action to valve 11, but first protector 2 and second protector 3 cooperation back, the guard action that plays valve 11 is better.

Third protection piece 4 is opened for cavity and both ends, can mutually support with first protection piece 2, and in the transportation, first protection piece 2 and the cooperation of third protection piece 4 make first protection piece 2 protect valve 11 in the primary importance, and third protection piece 4 protects distal end body of rod 12. When the valve 11 needs to be retracted after transportation is completed, the first protection member 2 and the third protection member 4 are matched at the second position, so that the second protection member 3 can extrude the valve 11, the valve 11 deforms, the valve 11 is retracted into the distal rod body 12 completely along with retraction of the distal rod body 12, and a use state is formed.

As a specific implementation, as shown in fig. 2 and 3, the first protector 2 is generally funnel-shaped as a whole, and includes a first large diameter portion 21, a first tapered portion 22, and a first small diameter portion 23, which are arranged in this order. The first large diameter portion 21 may have a certain taper, the first small diameter portion 23 is cylindrical, and the first tapered portion 22 is located between the first large diameter portion 21 and the first small diameter portion 23.

As shown in fig. 4, the second protector 3 is generally funnel-shaped as a whole, and includes a second large diameter portion 31, a second tapered portion 32, and a second small diameter portion 33 provided in this order. Wherein the second large diameter portion 31 has the same taper as the first large diameter portion 21 so as to be fitted with the first large diameter portion 21. The second small diameter portion 33 has a cylindrical shape, and the second tapered portion 32 is located between the second large diameter portion 31 and the second small diameter portion 33. The inner wall surface of the second tapered portion 32 forms a tapered surface 34 for pressing the valve 11.

The first large diameter portion 21 and the second large diameter portion 31 form a receiving cavity for protecting the valve 11 after butt-joint buckling, and the first small diameter portion 23 is matched with the third protecting member 4.

As shown in fig. 5 and 6, preferably, the third protector 4 includes a sleeve 41 and a locking piece 42. The first end of the sleeve 41 is fitted and fixed to the first small diameter portion 23. The distal shaft 12 comprises a thick shaft 121 and a thin shaft 122, the sleeve 41 is sleeved on the thick shaft 121, and the locking member 42 is engaged with the first step 123 between the thick shaft 121 and the thin shaft 122 and is sleeved and fixed with the second end of the sleeve 41. In this way, the sleeve 41 can protect a portion (thick rod 121) of the distal shaft 12 in the interventional valve system 1, and the locking member 42 can lock the sleeve 41.

Further, the sleeve 41 includes a main body 411 and a holding portion 412, and a second step 415 is disposed between the main body 411 and the holding portion 412. In the stowed condition of the valve 11, the second step 415 serves as a second position. When the valve 11 needs to be retracted, the first protection member 2 slides to the second position relative to the outer wall of the sleeve 41, and the second protection member 3 is fastened and fixed with the first protection member 2, so that the valve 11 is squeezed by the second protection member 3 in the sliding process, and the valve 11 is deformed to be retracted into the thick rod 121.

Preferably, the outer surface of the grip portion 412 is provided with embossments to facilitate gripping by an operator.

The sleeve 41 is also preferably provided with ventilation holes 413, by means of which holes 413 the interventional valve system 1 is sterilized. The air holes 413 may be long strips, circular holes or other special-shaped holes, and are formed in the sleeve 41 along the axis of the sleeve 41. It will be understood by those skilled in the art that the number of the air holes 413 may be one or more, and may be set according to actual conditions.

As already mentioned above, the first protector 2 and the third protector 4 are fitted in the first position when in the transport state. The implementation of the first position may be implemented as follows: the outer wall of the sleeve 41 is provided with a limiting groove 414, the inner wall of the first small diameter portion 23 is provided with a limiting block 24 (refer to fig. 3), and the limiting block 24 is matched with the limiting groove 414 at a first position. When the transportation state is completed and the retraction state needs to be entered, the first protector 2 is slid along the sleeve 41 of the third protector 4 to the second state, so that the second protector 3 presses the valve 11 and the valve 11 is retracted into the sleeve 41.

Specifically, the limiting groove 414 includes a vertical groove formed along the axial direction of the sleeve 41 and a transverse groove perpendicular to the vertical groove, and when the limiting block 24 is matched with the end of the transverse groove far from the vertical groove, the matching position is used as the first position.

When the operation is carried out on site, the first protection piece 2 is rotated to enable the limiting block 24 to slide to the vertical groove along the transverse groove, and at the moment, the first protection piece 2 is disengaged from the sleeve 41. The first protector 2 is then pushed to slide along the vertical slot to the second step 415 between the sleeve 41 and the locking member 42, and is restrained by the second step 415 to the second position. During the sliding of the first protector 2 along the vertical groove, the second protector 3 presses the valve 11, and the valve 11 is deformed and then retracted into the sleeve 41.

As shown in fig. 7, the first protector 2 and the third protector 4 are engaged in the first position, which is a transportation state, and the device is used for protection. As shown in fig. 8, the first protector 2 and the third protector 4 are engaged in the second position, which is a retracted state, and the device functions to retract the valve 11.

As shown in fig. 6, the locking member 42 may include an upper fixing portion 421 and a lower fixing portion 422. The upper fixing portion 421 and the lower fixing portion 422 may have the same or different structures, and the present embodiment is described by taking the same structure as an example, in which the upper fixing portion 421 includes a first half-tapered tube 421a and a first head portion 421b, and the lower fixing portion 422 includes a second half-tapered tube 422a and a second head portion 422 b. The first half-cone 421a and the second half-cone 422a are engaged with each other and extend into the sleeve 41 from the second end of the sleeve 41 after engagement. A tapered hole 416 (see fig. 5) is formed at an end of the grip portion 412 of the sleeve 41 away from the body 411, and an outer wall surface of the first half tapered tube 421a and the second half tapered tube 422a, which are engaged with each other, is tapered so as to be fitted into the tapered hole 416.

The first head 421b and the second head 422b are buckled with each other, sleeved on the thin rod 122 after being buckled, and matched with the first step 123 between the thick rod 121 and the thin rod 122.

There are various fixing manners between the upper fixing portion 421 and the lower fixing portion 422, and preferably, the first head portion 421b is provided with an upper limiting hole and/or an upper limiting post. The second head 422b is provided with a lower limiting hole 422c and/or a lower limiting post 422d, the upper limiting hole is matched with the lower limiting post 422d, and the lower limiting hole 422c is matched with the upper limiting post.

The limiting hole can be a blind hole, the limiting column can be cylindrical, the top of the limiting column is provided with a chamfer, and the upper fixing part 421 and the lower fixing part 422 are fixed in a matching mode.

When the whole device is finally detached, the locking member 42 is withdrawn, the other parts lose their fastening force, and the other parts are withdrawn in the direction opposite to the direction in which the locking member 42 is withdrawn.

It will be appreciated by those skilled in the art that the locking engagement between the locking member 42 and the sleeve 41 is not limited to the above engagement, and may be by other means such as a threaded or snap-fit connection.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A protection and retraction assisting device of an interventional valve system comprises a valve and a delivery system, wherein the valve is fixedly arranged on a distal rod body of the delivery system through a connecting device in the delivery system; characterized in that said protection and revenue assisting means comprises:

in the valve retraction assisting state, the first protection piece and the second protection piece are buckled with each other, the first protection piece and the third protection piece are matched at a second position, and at the moment, the second protection piece extrudes the valve to assist the retraction action of the conveying system and complete the retraction of the valve;

the second position is distal to the valve relative to the first position; the first protection piece comprises a first large diameter part, a first conical part and a first small diameter part which are sequentially arranged;

the first large diameter part is matched with the second large diameter part;

the first small diameter portion is engaged with the third protector; the third protector includes a sleeve and a lock;

the far-end rod body comprises a thick rod and a thin rod; the sleeve is sleeved on the thick rod; the locking piece is matched with a first step between the thick rod and the thin rod and is fixedly sleeved with the second end of the sleeve;

the locking piece comprises an upper fixing part and a lower fixing part;

the sleeve is provided with a tapered hole, and the outer wall surface of the buckled first semi-tapered pipe and the second semi-tapered pipe is tapered and matched with the tapered hole;

2. The protection and revenue assist device of claim 1, wherein the sleeve includes a body and a grip portion;

a second step is arranged between the main body and the holding part;

3. The protection and revenue assist device of claim 2, wherein the outer surface of the grip portion has embossing.

4. The protection and revenue assist device of claim 2, wherein the sleeve is provided with ventilation holes.

5. The protection and revenue assisting device of claim 2, wherein the outer wall of the sleeve is provided with a limit groove;

the limiting block is matched with the limiting groove at the first position.

6. The protection and revenue assisting apparatus according to claim 5, wherein the limit groove includes a vertical groove opened along the axial direction of the sleeve and a horizontal groove perpendicular to the vertical groove;

7. The protection and revenue assist device of claim 1, wherein the first head portion is provided with an upper limiting hole and/or an upper limiting post;

the upper limiting hole is matched with the lower limiting column;

the lower limiting hole is matched with the upper limiting column.