CN212630959U - Linkage type artificial mechanical valve - Google Patents

Abstract

The utility model discloses a linkage type artificial mechanical valve, which comprises a support ring and a left valve and a right valve which are arranged in the support ring and used for sealing the support ring, wherein an occlusion column is fixed on one side of the valve, and a plurality of axial bosses are arranged on the occlusion column; the bosses on the two valve occlusion columns are meshed with the gaps between the adjacent bosses on the opposite side occlusion column; the cross section of the rotating shaft is semicircular; two ends of the rotating shaft are inserted into pin holes on the support ring; the pin hole and the rotating shaft have the same radius, and the shape of the pin hole is a sector which is larger than a semicircle and smaller than a whole circle; the valve further comprises an elastic sheet, wherein the elastic sheet is W-shaped, and two ends of the elastic sheet are respectively fixed on the bottom surfaces of the two valves. The principle of the utility model lies in that the bosses on the occlusion column are engaged with each other, even if only one side valve is stressed, the other side can also rotate by the same angle.

Description

Linkage type artificial mechanical valve

Technical Field

The utility model relates to an artificial mechanical valve, in particular to a double-leaf linkage artificial mechanical valve.

Background

The artificial mechanical valve is an artificial organ which can be implanted in the heart to replace heart valves (aortic valve, tricuspid valve and mitral valve), can make blood flow in one direction, has the function of a natural heart valve and is made of artificial materials, and is a medical instrument commonly used in thoracic surgery.

The existing bileaflet artificial mechanical valve comprises a support ring and a valve which is arranged in the support ring by using a rotating shaft, wherein the valve can be opened in a single direction. The valves are generally connected to the support ring by rotating shafts, and the two valves are independent from each other. Along with the change of the body position of a human body, the pressure intensity of the blood vessel of the human body in the same section is not necessarily equal, so that the two valves are not necessarily opened at the same time, or the opening angles are not necessarily the same, and in the past, impurities in the blood can be accumulated on one side of the valve which is not opened frequently to block the valve, so that only one side of the valve can be opened at last, and the blood pressure in the blood vessel is increased.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a linkage type artificial mechanical valve, wherein the left and right valves can be linked.

In order to solve the technical problem, the technical scheme of the utility model is to adopt a linkage type artificial mechanical valve, which comprises a support ring and a left valve and a right valve which are arranged in the support ring and used for sealing the support ring, wherein an occlusion column is fixed on one side of the valve, and a plurality of axial bosses are arranged on the occlusion column; the bosses on the two valve occlusion columns are meshed with the gaps between the adjacent bosses on the opposite side occlusion column; the cross section of the rotating shaft is semicircular; two ends of the rotating shaft are inserted into pin holes on the support ring; the pin hole and the rotating shaft have the same radius, and the shape of the pin hole is a sector which is larger than a semicircle and smaller than a whole circle; the valve further comprises an elastic sheet, wherein the elastic sheet is W-shaped, and two ends of the elastic sheet are respectively fixed on the bottom surfaces of the two valves. The principle of the utility model lies in that the bosses on the occlusion column are engaged with each other, even if only one side valve is stressed, the other side can also rotate by the same angle.

As an improvement, the section of the occlusion column is semicircular, and the plane of the occlusion column and the top surface of the valve are on the same plane.

As a further improvement, the cross section of the boss is trapezoidal. So that the intermittent engagement between the bosses is tighter.

As another further improvement, the pin hole has a central angle of 225 °. The fan-shaped pin holes are matched with the semicircular rotating shaft to limit the rotating position of the valve. The 225-degree central angle sector pin hole is arranged, so that the rotating range of the semicircular rotating shaft can be 45 degrees, and the rotating angle of the valve is 45 degrees.

As an improvement, a limiting block is fixed on the occlusion column, and when the left valve and the right valve are on the same plane, the limiting block can be lapped on the occlusion column on the other side to prevent the valves from continuing to rotate. The rotation angle of the valve is further limited by the limiting blocks, and when the two valves are on the same plane, the two limiting blocks are overlapped on the occlusion column on the other side, so that the valves cannot rotate any more.

The utility model discloses an useful part lies in: the linkage type artificial mechanical valve with the structure has the advantages that the two valves are linked through the mutually meshed occlusion columns, even if the valve on one side rotates under stress, the valve on the other side can be opened at the same angle, and the situation that impurities in blood are accumulated to block one side finally is avoided.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic view of the pin hole.

The labels in the figure are: 1 support ring, 2 valves, 3 occlusion columns, 4 rotating shafts, 5 pin holes and 6 limiting blocks.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the specific embodiments.

As shown in fig. 1, 2 and 3, the linkage type artificial mechanical valve of the present invention comprises asupport ring 1 and a left and aright valve 2 installed in thesupport ring 1 for sealing thesupport ring 1, wherein an occlusion column 3 is fixed on one side of thevalve 2, and a plurality of axial bosses are arranged on the occlusion column 3; the section of the occlusion column 3 is semicircular, and the plane of the occlusion column is on the same plane with the top surface of thevalve 1. The bosses on the occlusion columns 3 of the twovalves 2 are meshed with the gaps between the adjacent bosses on the occlusion column 3 at the opposite side; the section of the boss is trapezoidal. The clutch device also comprises arotating shaft 4 which is coaxial with the meshing column 3, and the section of the rotatingshaft 4 is semicircular; two ends of the rotating shaft are inserted intopin holes 5 on thesupport ring 1; thepin hole 5 and the rotatingshaft 4 have the same radius, and are in the shape of a sector which is larger than a semicircle and smaller than a whole circle; the central angle of thepin hole 5 is preferably 225 °. The valve body is characterized by further comprising an elastic sheet 7, wherein the elastic sheet 7 is W-shaped, and two ends of the elastic sheet 7 are respectively fixed to the bottom surfaces of the twovalves 2.

A limiting block 6 is fixed on the occlusion column 3, and when theleft valve 2 and theright valve 2 are on the same plane, the limiting block 6 can be lapped on the occlusion column 3 on the other side to prevent thevalves 2 from continuing to rotate.

Blood flows in fromvalve 2 top surface one side, strikesvalve 2 forvalve 2 rotates downwards, drives the post of stinging 3 and also rotates along with it whenvalve 2 rotates. Because the occlusion columns of the twovalves 2 are mutually engaged by using the bosses, as long as the occlusion column 3 at one side rotates, the occlusion column 3 at the other side rotates along with the rotation in the opposite direction but at the same angle, and the linkage of the twovalves 2 is realized. The spring 7 is used to assist in repositioning thevalve 2.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims (5)

1. The utility model provides a linkage type artificial mechanical valve, includes the support ring and installs and be used for sealing two piece valves of the left and right sides of support ring in the support ring, its characterized in that: an occlusion column is fixed on one side of the valve, and a plurality of axial bosses are arranged on the occlusion column; the bosses on the two valve occlusion columns are meshed with the gaps between the adjacent bosses on the opposite side occlusion column; the cross section of the rotating shaft is semicircular; two ends of the rotating shaft are inserted into pin holes on the support ring; the pin hole and the rotating shaft have the same radius, and the shape of the pin hole is a sector which is larger than a semicircle and smaller than a whole circle; the valve further comprises an elastic sheet, wherein the elastic sheet is W-shaped, and two ends of the elastic sheet are respectively fixed on the bottom surfaces of the two valves.

2. The linked artificial mechanical valve according to claim 1, wherein: the cross section of the occlusion column is semicircular, and the plane of the occlusion column and the top surface of the valve are on the same plane.

3. The linked artificial mechanical valve according to claim 1, wherein: the section of the boss is trapezoidal.

4. The linked artificial mechanical valve according to claim 1, wherein: the central angle of the pin hole is 225 degrees.

5. The linked artificial mechanical valve according to claim 1, wherein: and when the left valve and the right valve are on the same plane, the limiting block can be lapped on the occlusion column on the other side to prevent the valves from continuing to rotate.

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