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Heart valve prosthesis using different types of living tissue and method of fabricating the same

A technology of artificial heart valve and living tissue, applied in the direction of heart valve, medical science, stent, etc., can solve the problems of deformation or damage, loss of function, non-function, etc.

Inactive Publication Date: 2012-03-28
TAEWOONG MEDICAL CO LTD +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Manufacture takes several days or longer, uniform quality can hardly be expected due to the manual nature of the immersion and bonding procedures, and is of low practicability due to low yields
[0009] In addition, since the patient's chest wall is cut open to implant the artificial heart valve of the related art, it takes a long time for the patient to recover and increases the required cost.
[0010] In addition, artificial heart valves in related technical fields are implanted using artificial valve prostheses or artificial tissue prostheses, which are deformed or damaged due to chemical, physical or immune reactions in the human body, thereby losing function or becoming nonfunctional

Method used

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  • Heart valve prosthesis using different types of living tissue and method of fabricating the same
  • Heart valve prosthesis using different types of living tissue and method of fabricating the same
  • Heart valve prosthesis using different types of living tissue and method of fabricating the same

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Embodiment Construction

[0032] Reference will now be made in more detail to the preferred embodiment of the invention, an example of which is illustrated in the accompanying drawings.

[0033] like Figure 1 to Figure 5 As shown in , according to an embodiment of the present invention, a method of using porcine pericardium to manufacture an artificial heart valve is by placing the valve body 10 on the polyester body 20, and using suture fibers 30 to suture the valve body 10 and the polyester body 20 , roll the polyester body 20 into a cylindrical shape to place the valve body 10 therein, suture the opposite sides of the polyester body 20 to each other using suture fibers, and insert the resulting structure into a stent braided using shape memory alloy wires 51 50, thereby making the artificial heart valve 100.

[0034] First, the valve body 10 was fabricated by taking out a rectangular leaflet from the porcine pericardium surrounding the porcine heart, and cutting the pericardium leaflet to form thr...

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Abstract

A heart valve prosthesis and a method of fabricating the same. The heart valve prosthesis uses a leaflet of pig pericardium (10) or a leaflet of cattle pericardium, which has a suitable thickness according to the size of the valve, and a stent. The heart valve prosthesis is fabricated by placing a valve body over a Dacron body (20), binding the valve body to the Dacron body using stitching fiber (30), rolling the Dacron body into a cylindrical form such that the valve body is located inside, binding opposite edges of the Dacron body to each other using stitching fiber, and inserting the resultant structure into a stent (60), which is knitted using a shape memory alloy wire. The heart valve prosthesis is friendly to and is not rejected by human tissue, is free from deformation, and can be implanted using a non-invasive manner without incising the chest wall of a patient.

Description

technical field [0001] The present invention relates to prosthetic heart valves using different types of living tissue and methods for their manufacture. More particularly, the present invention relates to an artificial heart valve using porcine pericardium or bovine pericardium and a stent and a manufacturing method thereof, the artificial heart valve is close to human tissue without rejection, does not deform, and can be non-invasively implanted in a manner. technical background [0002] Generally, artificial heart valves are used to replace human heart valves according to their method of operation when the heart valve is damaged or malfunctions. Prosthetic heart valves are also used in artificial hearts or ventricular assist devices (VADs) to prevent backflow of blood. [0003] In addition, artificial heart valves can be divided into mechanical valves, tissue valves and polymer valves according to the main components of the material. Mechanical valves prevent backflow ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24A61F2/90A61L27/00A61M29/02
CPCA61F2/2415A61F2220/0075A61F2/2418Y10T29/49826A61F2/82A61L27/3604C12N5/0602
Inventor 辛卿珉洪唐善曹恩娭金容珍李哲吴三世李昌夏林洪局
Owner TAEWOONG MEDICAL CO LTD
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