Bovine pericardial valve forming die

A technology for forming molds and bovine pericardial valves, which can be used in heart valves, medical science, prostheses, etc., and can solve the problems of poor recovery of aortic valve function and high chance of surgery

Active Publication Date: 2015-03-04
陶凉
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the recovery of aortic valve function is poor after operation, and the chance of reoperation is high.

Method used

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  • Bovine pericardial valve forming die
  • Bovine pericardial valve forming die

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Experimental program
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Embodiment Construction

[0009] As shown in FIG. 1 , three single leaflets 1 , 2 , 3 are arranged on a hard substrate 4 in a straight line at intervals to form an integral structure. The length L of the base plate is the inner wall circumference of the aorta of the human heart. The distance L1 between the single leaflets is: 1.04+0.14n, where n is a natural number. Whereas the outline of the three single leaflets is the same as that of a trileaflet aortic valve.

[0010] The length L of the above-mentioned base plate, the size of the outline of the three single leaflets and the distance L1 between the single leaflets are calculated according to the anatomical parameters of the aortic valve leaflets of patients of different ages and weights. 15, 17, 21, 23, 25, 27 , 29, 31, and 33 different models of bovine pericardium leaflet forming molds, as shown in Table 1.

[0011] Dimensions of bovine pericardial leaflet forming mold (in mm) Table 1

[0012]

[0013] The height H of the single leaflet is t...

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Abstract

The invention provides a bovine pericardial valve forming die, which comprises three hard single valves linearly disposed on a hard substrate at interval. Length of the substrate is equal to inner wall perimeter of human heart aorta. Profiles of the three single valves are the same as that of tricuspid aortic valve. The bovine pericardial valve forming die is convenient in moulding. In application, the bovine pericardial valve forming die is attached to bovine pericardium material, and to-be-replaced valve can be conveniently cut along the three hard single valves. The die has the advantages of simple structure, convenient forming and application, and strong bionic character.

Description

technical field [0001] The invention belongs to heart surgery instruments, in particular to a mold for forming bovine pericardium leaflets. Background technique [0002] So far, domestic and foreign cardiac surgeons mainly use valve replacement and aortic valvuloplasty for surgical correction of aortic valve insufficiency. Valve replacement is to replace the original valve with a mechanical or biological valve. The operation is less difficult and the curative effect is better. But postoperatively: ①Long-term anticoagulant therapy; ②Limited by the size of the artificial valve, it is not suitable for children, patients with small aortic root, and female patients with reproductive needs. Valvuloplasty is to fold and suspend the diseased aortic valve leaflets to restore the function of the valve. Its advantage is that the operation is less difficult and the original valve leaflets and their anatomical structure are preserved. However, the recovery of aortic valve function is p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/24A61L27/04
Inventor 陶凉曾祥军周宏程端周欣华正东金晶
Owner 陶凉
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