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Method for producing adsorbable artificial ligaments

A manufacturing method and artificial ligament technology, applied in the field of medical implants, can solve the problems of aseptic inflammation, artificial ligament cannot be used for a long time, artificial ligament fatigue fracture, etc., and achieve the effect of good biocompatibility

Inactive Publication Date: 2008-12-24
SHANGHAI JIAO TONG UNIV AFFILIATED SIXTH PEOPLES HOSPITAL +1
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Problems solved by technology

[0002] Treatment of ligament rupture caused by sports, or thoracolumbar surgery requires the use of artificial ligaments, usually non-absorbable artificial ligaments of synthetic high polymers, such as long strips or strips made of polyester, polytetrafluoroethylene, nylon, etc. Braided belt, this kind of artificial ligament has good short-term effect after implantation, but this kind of high polymer is different from the human body in terms of composition and structure, and there is always the risk of aseptic inflammation caused by chronic rejection. This type of artificial ligament is also prone to fatigue fracture, which has caused the problem that the artificial ligament cannot be used for a long time

Method used

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Embodiment Construction

[0016] The invention discloses a manufacturing method of absorbable artificial ligament, which is composed of absorbable suture thread and biological support material.

[0017] Described composite comprises the following steps:

[0018] a. First, multiple strands of absorbable sutures are intertwined to form an inner core;

[0019] b. Then coating the biological scaffold material on the outside of the inner core;

[0020] c. Finally, an absorbable suture is wrapped around the bio-scaffold material to fix the bio-scaffold material.

[0021] After the step c, the bio-stent material can be coated repeatedly and the absorbable suture can be wrapped; the absorbable suture adopts absorbable catgut; the bio-stent material adopts band-shaped porcine small intestinal submucosa.

[0022] This embodiment is made by weaving absorbable catgut and porcine small intestinal submucosa (SIS).

[0023] Catgut is currently a commonly used absorbable suture in clinical practice. It has good bio...

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Abstract

The invention relates to a manufacturing method for absorbing an artificial ligament, which can be compounded by PGLA and a bio-scaffold. Compared with the prior art, the product of the invention has strong tensile capacity and can be replaced by normal human ligaments.

Description

technical field [0001] The invention relates to a medical implant, in particular to a method for manufacturing an absorbable artificial ligament. Background technique [0002] Treatment of ligament rupture caused by sports, or thoracolumbar surgery requires the use of artificial ligaments, usually non-absorbable artificial ligaments of synthetic polymers, such as long strips or strips made of polyester, polytetrafluoroethylene, nylon, etc. Braided belt, this type of artificial ligament has good short-term effects after implantation, but this type of polymer is different from the human body in terms of composition and structure, and there is always the risk of aseptic inflammation caused by chronic rejection. Such artificial ligaments are also prone to fatigue fractures, resulting in the problem that the artificial ligaments cannot be used for a long time. Contents of the invention [0003] The object of the present invention is to provide a method for manufacturing an abs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/58A61L27/44A61L27/00A61F2/08
Inventor 傅一山曾炳芳张长青苏琰
Owner SHANGHAI JIAO TONG UNIV AFFILIATED SIXTH PEOPLES HOSPITAL
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