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Artificial heart valve forming ring

A technology of artificial heart valve and forming ring, which is applied in the field of medical devices to achieve the effect of shortening the recovery time, making it easier to insert needles, and reducing complications

Active Publication Date: 2005-06-29
BEIJING BALANCE MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to achieve a certain rigidity to ensure the correction of diseased or deformed annulus by changing the structure and composition, and to meet its three-dimensional flexibility, so as to meet the myocardial compliance after treatment. to maximize recovery

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] refer to figure 1 , figure 2 It is a three-dimensional schematic diagram and a cross-sectional view of an artificial heart valve forming ring of the present invention. The artificial heart valvuloplasty ring of the present invention selects a medical polymer material that can be implanted into the body as the support tube 1, the outer diameter of the support tube 1 is 1.8-2.5 mm, and the wall thickness is 0.3-1.2 mm. The inner core 2 is placed in the support tube 1, and polyethylene or other medical polymer materials can be selected, and 10% to 60% of developable inorganic materials, such as hydroxyapatite, barium sulfate, etc., are mixed with the inner core. Use the same material as the support tube. The cross-sectional shape of the inner core is rectangular, the length is 0.6-1.8mm, and the width is 0.4-1.6mm, and there is a certain gap between the inner core 2 and the support tube 1, so that the compliance of the entire ring body is better, the so-called support t...

Embodiment 2

[0021] In embodiment one, its inner core can also be replaced by a medical titanium alloy metal spring implantable in the body, and its outer diameter is 0.6-2.2mm, and other structures are consistent with those in embodiment one (such as image 3 ).

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Abstract

The invention discloses an artificial heart valve forming ring, wherein the outer most layer of the ring is a medical implantation polyester fabric with biocompatibility coated outside a bracing tube, the bracing tube is equipped with an inner core, gaps exist between the inner core and the bracing tube, the inner core and the bracing tube are all made of macromolecular material that can be implanted into human body for medical purpose, the inner core and the bracing tube is blended with 10-60% of inorganic material for developing under X-ray, the peristaltic property of the adjusting ring can keep uniform with the cardiac muscle conformability, thus meeting the three-dimensional flexibility to the maximum limit.

Description

technical field [0001] The invention relates to a medical device, in particular to a forming ring used in artificial heart valve annuloplasty. Background technique [0002] The use of valvuloplasty rings for valvuloplasty was first performed in the 1970s. In recent years, valvuloplasty has developed rapidly, and it has matured from theory to clinical practice. Annuloplasty rings are widely used as a mature product. The current annuloplasty rings can be roughly divided into two categories: hard rings and soft rings. The hard ring mainly has a metal core as the ring core. Although this hard ring has a good correction effect on the valve, it has poor compliance with the myocardium. Application No. 00103774.9 discloses a prosthesis for valvuloplasty. The core wire of the prosthesis has better plasticity in the ring plane, and the core wire is made of alloy. The compliance during relaxation and contraction is still far apart. The inner core of the soft ring is mainly made of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00A61F2/24A61L31/04
Inventor 金磊
Owner BEIJING BALANCE MEDICAL
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