CN215606586U

CN215606586U - Clamping device

Info

Publication number: CN215606586U
Application number: CN202121368236.2U
Authority: CN
Inventors: 王梓曼; 李泽明; 向仟元
Original assignee: 珠海益心医疗科技有限公司
Current assignee: Zhuhai Radisson Medical Technology Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-01-25
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a clamping device, which comprises a body, a clamping device and a clamping device, wherein the body comprises two first clamping parts; the two second clamping parts are arranged on the body, an angle alpha is formed between the first clamping part and the second clamping part, alpha is larger than 0 degree, and a valve clamping area is defined between the first clamping part and the second clamping part. So set up, be formed with the angle alpha that is greater than 0 between first clamping part on the body and the second clamping part, the region that angle alpha corresponds is the region of centre gripping valve promptly, when realizing the grip function, body simple structure, convenient operation, and low in production cost.

Description

Clamping device

Technical Field

The utility model relates to the technical field of valve clamping devices, in particular to a clamping device.

Background

Heart valve disease is a common heart disease. Aortic, mitral and tricuspid regurgitation and the like are the most common diseases of heart valves, and the incidence rate of the diseases is in a remarkably rising trend in recent years. The etiology of the disease can be divided into rheumatic change, degenerative change, congenital malformation, ischemic necrosis, infection or trauma, and the like, and the normal flow of blood is influenced, so that the abnormal function of the heart is caused, and finally the psychological failure is caused. With the aging of the population, senile valvular diseases and valvular diseases caused by coronary heart disease and myocardial infarction are more and more common. The treatment of heart valve disease by minimally invasive interventional devices, all of which are based on surgical margin-to-margin suturing techniques, is a research hotspot in recent years.

The valve clamping device used clinically at present has a complex mechanical structure and higher manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the clamping device provided by the utility model has the advantages that the first clamping part and the second clamping part on the body are matched to clamp the valve, the structure is simple, and the production cost is low.

A clamping device according to an embodiment of the present invention includes:

the body comprises two first clamping parts;

the two second clamping parts are arranged on the body, an angle alpha is formed between the first clamping part and the second clamping part, alpha is larger than 0 degree, and a valve clamping area is defined between the first clamping part and the second clamping part.

The clamping device provided by the embodiment of the utility model has at least the following beneficial effects: an angle alpha larger than 0 degree is formed between the first clamping part and the second clamping part on the body, and the area corresponding to the angle alpha is the area for clamping the valve.

According to some embodiments of the utility model, the second clamping portion is integrally formed with the body.

According to some embodiments of the utility model, the body is a nickel titanium alloy part.

According to some embodiments of the utility model, the two first clamping portions are symmetrically arranged, and the two second clamping portions are located between the two first clamping portions.

According to some embodiments of the utility model, the lower end of the first clamping part is provided with a guide surface for engaging a conveying device.

According to some embodiments of the utility model, the first clamping part is provided with stabilizing plates at two sides in an inclined manner.

According to some embodiments of the utility model, the body is further provided with a connecting part for connecting a conveying device.

According to some embodiments of the utility model, the connection portion is provided as a threaded hole or a through hole.

According to some embodiments of the utility model, the first clamping portion is provided with an anchoring barb on an inner side thereof.

According to some embodiments of the utility model, an outer side of the first clamping portion is coated with a thin film.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a clamping device according to an embodiment of the present invention;

FIG. 2 is a front view (with an anchor) of the clamping device shown in FIG. 1;

FIG. 3 is a front view of a clamping device (with a membrane) of an embodiment of the utility model;

FIG. 4 is a diagram of a placement process of a clamping device of an embodiment of the present invention;

fig. 5 is a clamping state diagram of the clamping device according to the embodiment of the utility model.

A main body 100, a first clamping part 110, a second clamping part 120, a guide surface 130, a stabilizing plate 140, a connecting part 150 and an anchor thorn 160;

a film 200;

a conveying device 300, a support 310;

the valve 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is more than one, and the meaning of more than, less than, more than, etc. is understood as excluding the present number, and the meaning of more than, less than, etc. is understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 and 2, a clamping device according to an embodiment of the present invention includes:

the body 100 is provided with two first clamping portions 110 on the body 100, the first clamping portions 110 are in a sheet shape, the two first clamping portions 110 are in a V shape in a normal state, the body 100 is further provided with two second clamping portions 120, an included angle α is formed between the second clamping portions 120 and the first clamping portions, α > 0 °, it should be noted that the included angle α is an included angle between the first clamping portions 110 and the second clamping portions 120 in fig. 2, and a region corresponding to the included angle is a region for clamping the valve 400.

In the above embodiment, the body 100, the first clamping portion 110 and the second clamping portion 120 are made of nitinol, which is a memory metal, and in the process of manufacturing the clamping device, the first clamping portion 110 is pressed towards the middle to form the two first clamping portions 110 into a U shape, the two second clamping portions 120 are expanded outwards to form a V shape and then are heat-set, and then the clamping device is assembled into the state shown in fig. 1, in which the two first clamping portions 110 have a closed relative acting force with respect to the second clamping portion 120, and the second clamping portion 120 has an open relative acting force with respect to the first clamping portion 110.

The using method is as shown in fig. 4 and 5, referring to fig. 4, the body 100 is loaded on the conveying device 300, the front end of the conveying device 300 is provided with a supporting part 310, the supporting part 310 is used for expanding the included angle alpha as much as possible, so that the valve can be accommodated between the first clamping part 110 and the second clamping part 120, after the valve is conveyed to the place, referring to fig. 5, the conveying device 300 is lifted, the supporting part 310 moves upwards, at the moment, the second clamping part 120 is attached to one side of the valve 400 under the action of the relative action of opening, the first clamping part 110 is folded towards the middle under the action of the relative action of closing due to the loss of the supporting action of the supporting part 310, and is attached to the other side of the valve 400, so that the clamping action is completed.

The clamping device provided by the embodiment of the utility model has at least the following beneficial effects: an angle alpha larger than 0 degree is formed between the first clamping part 110 and the second clamping part 120 on the body 100, and the area corresponding to the angle alpha is the area for clamping the valve 400, so that the body 100 has a simple structure, is convenient to operate and has low production cost while the clamping function is realized.

According to some embodiments of the present invention, referring to fig. 1, the second clamping portion 120 is integrally formed with the body 100, that is, the first clamping portion 110 and the second clamping portion 120 are both formed by cutting the body 100, and are connected to the body by welding or other methods, compared to the second clamping portion 120, the integrally formed second clamping portion 120 has better stability and resilience, and does not fall off, so that the clamping is more stable, and meanwhile, the production is facilitated, and the process can be saved, thereby saving the production cost.

According to some embodiments of the present invention, referring to fig. 1 or fig. 2, the two first clamping portions 110 and the two second clamping portions 120 are symmetrically arranged, and the two second clamping portions 120 are located between the two first clamping portions 110.

According to some embodiments of the present invention, referring to fig. 1, a guide surface 130 is provided at a lower end of the first clamping portion 110, the guide surface 130 is adapted to a support portion 310 of the delivery device 300, the support portion 310 supports the first clamping portion 110 by abutting against the guide surface 130, so that the supporting process is more flexible, and during the retraction of the delivery device 300, the closing process of the first clamping portion 110 is also more flexible, so that the first clamping portion 110 can be slowly attached to the valve 400, and the valve 400 is prevented from being affected by the rapid attachment to the valve 400.

According to some embodiments of the present invention, referring to fig. 1, the stabilizing plates 149 are obliquely disposed on both sides of the first clamping portion 110, and the stabilizing plates 140 are disposed to make the first clamping portion 110 fit the valve 400 more sufficiently, so as to avoid generating gaps.

According to some embodiments of the present invention, referring to fig. 1, a connection part 150 is further opened on the body 100, and the body 100 can be loaded on the conveying device 300 through the connection part 150. The connecting portion 150 may be configured as a threaded hole, and then the front end of the conveying device 300 is correspondingly configured with a threaded structure, and the connecting portion 150 may also be configured as a through hole, and then the front end of the conveying device 300 is correspondingly configured with a snap structure.

According to some embodiments of the present invention, referring to fig. 2 or fig. 3, the anchoring thorn 160 is disposed on the inner side of the first clamping portion 110, and the anchoring thorn 160 can make the first clamping portion 110 attach to the valve 400 more stably, so as to prevent the clamping device from falling off.

According to some embodiments of the present invention, referring to fig. 3, the outer side of the first clamping portion 110 is further covered with a film 200, and the film 200 can protect the valve 400 tissue, accelerate endothelial covering, increase the surface contact area, and increase the contact friction force.

It should be noted that the above-mentioned inner side refers to the area between the two first clamping portions 110, and the outer side refers to the side of the first clamping portion 110 away from the second clamping portion 120.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A clamping device, comprising:

the body comprises two first clamping parts;

2. A holding arrangement as claimed in claim 1, wherein the second holding portion is integrally formed with the body.

3. A holding device as claimed in claim 2, wherein the body is of nitinol.

4. A clamping arrangement according to claim 3, wherein the two first clamping portions are symmetrically arranged and the two second clamping portions are each located between the two first clamping portions.

5. A clamping arrangement according to claim 3, wherein the lower end of the first clamping portion is provided with a guide surface for engaging the conveying means.

6. A clamping device as claimed in claim 1, wherein the first clamping portion is provided with stabilizing plates at both sides thereof.

7. A holding arrangement as claimed in any one of claims 1 to 6, wherein the body is further provided with a connecting portion for connecting a delivery device.

8. A holding arrangement as claimed in claim 7, wherein the connecting portion is provided as a threaded or through hole.

9. A holding arrangement as claimed in claim 7, wherein the first holding part is provided with anchorages on the inside.

10. A holding arrangement as claimed in claim 8, wherein the first holding portion is externally coated with a film.