Detachable double-leaf artificial mechanism heart valves

A heart valve, split-type technology, applied in the direction of heart valves, etc., can solve the problems of high cost, poor comparability, and non-separable double-leaf mechanical valves, and achieve the effect of cost reduction

Inactive Publication Date: 2010-10-13
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems that the existing double-leaflet mechanical valve cannot be disassembled, the cost is high, and the comparability of the experimental results is poor, and a detachable double-leaflet artificial mechanical heart valve is proposed. According to the needs of research goals, it is more convenient and targeted to change the structural design of mechanical valves to save costs and time

Method used

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  • Detachable double-leaf artificial mechanism heart valves
  • Detachable double-leaf artificial mechanism heart valves
  • Detachable double-leaf artificial mechanism heart valves

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] Such as figure 1 , 2 As shown, the detachable bileaflet mechanical heart valve consists of figure 1 The two symmetrical semicircular petal frames 1, 2 and such as figure 2 Two symmetrical leaflets 15, 16 are formed, each leaf frame has a pair of pivots 3, 5 and 4, 6 and a pair of stoppers 7, 8 and 9, 10, and the leaflets 15, 16 pass through it The upper and lower petal shafts 11, 12 and 13, 14 are respectively inserted into the pivots 3, 4, 5, 6, the two petal frames 1, 2 are aligned up and down to form a circular petal frame, and the two petal frames are clamped with fingers 1, 2, making it a complete heart valve that includes the leaflets 15, 16 that can rotate freely.

[0013] Such as image 3 Shown is a device for installing a detachable bileaflet artificial mechanical heart valve. The device is composed of two cylindrical cavities 17, 18 of the size of the outer diameter and the inner diameter of the circular valve frame 1, 2. The leaflet mechanical heart val...

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Abstract

The invention relates to a detachable two-bladed artificial mechanical cardiac valve, which consists of a circular valve support and two symmetrical semilunar valve blades, wherein the circular valve support is divided into two symmetrical semilunar valve supports; each valve support has a pair of shaft journals and chock blocks; the upper part and the lower part of each of the two symmetrical semilunar valve blades are respectively provided with two valve axes; the two pairs of valve axes are corresponding to the two pairs of shaft journals and can be conveniently inserted in and pulled out;and the two pairs of chock blocks respectively control the maximum opening angle of the two symmetrical semilunar valve blades. The two-bladed artificial mechanical cardiac valve is detachable and can conveniently change the geometrical shapes of certain parts of the mechanical cardiac valve according to design requirements while keeping other design structures unchanged, thereby ensuring lower cost and research data with more comparability.

Description

technical field [0001] The present invention relates to an artificial mechanical heart valve, in particular to a detachable double-leaf artificial mechanical heart valve. Background technique [0002] The replacement of mechanical heart valves is an effective treatment for patients with heart valve diseases. It has been clinically carried out for nearly 50 years, and about 200,000 people receive artificial heart valve implantation operations every year. As the latest generation of mechanical valves, bileaflet mechanical heart valves are the most widely used clinically. For example, the Chinese invention patent specification CN91100324.X announced on August 12, 1992 discloses a ceramic double-leaflet artificial mechanical heart valve. This double-leaflet valve consists of a valve frame and two valve blades. The two petal shafts of the petal blades are fixed on the petal frame with four pivots to form free rotation. The bileaflet mechanical heart valve has many advantages su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/24
Inventor 张培姚允福钱平
Owner SHANGHAI INST OF TECH
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