Absorbable/biodegradable surgical implant and manufacturing method thereof

Abstract

The invention provides an absorbable / biodegradable surgical implant and a manufacturing method thereof, and belongs to the technical field of medical textile instruments. The absorbable / biodegradable surgical implant is of a composite structure, in particular consisting of a core woven from a first fibrous material and a shell woven from a second fibrous material; the first cellulosic material is a non-absorbable / biodegradable material and is selected from one or more of polyester, polypropylene, polytetrafluoroethylene, polybutylene ester and ultra-high molecular weight polyethylene; the second cellulosic material is an absorbable / biodegradable material and is selected from one or more of polylactic acid, a polyglycolide-lactide polymer, polycaprolactone, poly (p-dioxanone) and polyhydroxyalkyl polyester. The shell can avoid the stress concentration phenomenon, and the tissue shearing and tearing conditions are reduced; and after the shell is absorbed or biodegraded, the tissue is gradually healed, at the moment, the required tensile strength is reduced, the stress concentration phenomenon is avoided, and the core can still provide enough strength to keep stable.

Description

technical field [0001] The invention relates to the technical field of medical textile instruments, in particular to an absorbable / biodegradable surgical implant and a manufacturing method. Background technique [0002] As a surgical implant, orthopedic suture is a common medical consumable, widely used in wound suture, tissue ligation, joint and implant fixation, and soft tissue repair. Compared with general surgical sutures, orthopedic sutures have higher performance requirements. An ideal orthopedic suture should achieve the best in terms of mechanical properties, operability and biological properties, including greater tensile strength, easy to distinguish and knot in appearance, and smaller tissue shears after implantation into the human body. Cut and foreign body reaction. At present, almost all orthopedic suture related products used clinically in my country rely on imports, which not only results in high surgical costs for patients, but also this kind of technologi...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects in the prior art, the present invention provides an absorbable / biodegradable surgical implant and a manufacturing method to solve the problem of stress concentration after the implant is implanted into human / animal internal organs and tissues, Alleviate the contradiction between high tensile strength and degradable and absorbable properties, that is, to achieve high tensile strength and reduce the stress concentration phenomenon of surgical implants after being stressed, and have a positive effect on tissue repair. certain promotion

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