Artificial ligament with degradation layer and manufacturing method of artificial ligament

Abstract

The invention provides an artificial ligament with a degradation layer. The artificial ligament comprises a round bar structure (1), wherein the round bar structure (1) forms a first bone tunnel wovenpart (11), an intra-articular free filament part (13) and a second bone tunnel woven part (12) which are connected in sequence along the axial direction; the round bar structure (1) comprises warp and weft layers (81), a weft part and absorbable layers (82); the warp and weft layers (81) and the weft part are integrally formed, and the absorbable layers (82) are made of a degradable material; each of the first bone tunnel woven part (11) and the second bone tunnel woven part (12) comprises the warp and weft layers (81) and the absorbable layers (82), along the radial direction, the warp and weft layers (81) and the absorbable layers (82) are alternatively distributed; the intra-articular free filament part (13) only comprises the weft part. The invention further provides a manufacturing method of the artificial ligament with the degradation layer. According to the artificial ligament and the manufacturing method of the artificial ligament, for the woven cloth of a PET material, the mechanical strength can be guaranteed during the recovery process, and meanwhile, the absorbable material is increased for accelerating the recovery of the ligament.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an artificial ligament with a degradable layer and a manufacturing method. Background technique [0002] In sports, sports injuries are also increasing. One of them is ligament injury. Artificial ligament implants are also increasingly used in the repair of ligament injuries. [0003] There are currently two types of artificial ligaments on the market. One type is a permanent artificial ligament composed of polymer materials. This type of ligament has mechanical properties similar to those of the human body, and can meet the needs of daily life while providing recovery. However, such ligaments have a long recovery period and may produce particles after implantation, causing inflammation. The other is to replace part of the polymer material with absorbable material and weave it into the ligament on the basis of the former. This type of ligament recovers more rapidly after impla...

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