Partially-absorbable patch applied to rotator cuff repair and manufacturing method of partially-absorbable patch

Abstract

The invention provides a partially-absorbable patch applied to rotator cuff repair. The partially-absorbable patch comprises a braided body and a coating, wherein the braided body comprises a supporting base layer; the supporting base layer comprises one or more braiding units; the coating is arranged on one or two end faces in a thickness extension direction of the supporting base layer; the supporting base layer is made from a non-degradable material; the coating is made from a degradable material; and the coating is sprayed on the supporting base layer. Correspondingly, the invention also provides a manufacturing method of the partially-absorbable patch applied to the rotator cuff repair. The partially-absorbable patch provided by the invention is relatively high in initial fixation strength; meanwhile, close binding between a rotator cuff and a humeral head is guaranteed, and gaps are reduced; and moreover, along with gradual degradation of collagen, connective tissues of a human body gradually grow and enter patch pores, so that an integral structure is formed, and the healing of the rotator cuff is accelerated.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a partially absorbable patch for rotator cuff repair and a manufacturing method. Background technique [0002] Rotator cuff injury is a common injury of the shoulder joint. Patients often suffer from shoulder pain and limited mobility after a certain trauma. The main symptoms of rotator cuff injury are: pain on the outside of the shoulder, which can radiate to the neck and upper arm; shoulder abduction , or doing the whipping action of the shoulder from external rotation to internal rotation, the pain will be aggravated; when the shoulder is externally rotated and abducted to resist, the shoulder will also experience obvious pain; shrinking. In the normal population, rotator cuff injuries account for 5% to 40% of shoulder joint disorders, and 17% to 41% in people over 60 years old. [0003] At present, there are single and double rows of threaded anchors and perforated bone sutur...

AI Technical Summary

Problems solved by technology

However, when the patient has anterosuperior instability of the shoulder joint or a large rotator cuff injury, the effect is not very satisfactory in terms of pain and function.

Although rotator cuff repair techniques have been significantly improved, there is still a re-tear rate of 38% to 94% after surgery, especially in degenerative rotator cuff injuries with a low degree of tendon-bone healing

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