Dresser for minimally invasive surgery for cartilage transplantation

Abstract

The invention discloses a dresser for a minimally invasive surgery for cartilage transplantation. The dresser comprises an outer sleeve and a rotating rod, the rotating rod is built in the outer sleeve, the lower end of the rotating rod is provided with a rotating head, an oblique groove is uniformly formed around the axis of the rotating head, and a cutting blade is disposed at the lower end of the oblique groove. When the dresser is used, the outer sleeve is inserted into a surgical incision and positioned behind a cartilage defect area, and the rotating head is driven to trim the cartilagedefect area by rotating the rotating rod built in the outer sleeve; an adhesive cartilage stent material is easy to position under a microscope, the adhesion is easy and firm, which greatly improves the surgical effect, the work intensity of the surgeon and the pain of a patient are reduced, and the dresser has a breakthrough significance for the extensive development of tissue engineered cartilage transplantation.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a trimmer for minimally invasive surgery of cartilage transplantation. Background technique [0002] In the process of tissue-engineered cartilage transplantation, since there are no special surgical instruments under arthroscopy, open surgery is required, and the periosteum or biomembrane can be sutured in the joint after the cartilage injury site is exposed, and then the cell replantation operation can be performed after suturing. The resulting incision greatly affects the appearance, and lacks the magnification and monitoring function of the arthroscopic, only relying on the operator's own surgical experience, so special equipment for cartilage transplantation under the microscope is needed, so that the chondrocyte transplantation under the arthroscope becomes possible. [0003] At present, the repair of cartilage has been developed into pasting cartilage repair. Befor...

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Problems solved by technology

[0004] In view of this, the main purpose of the present invention is to provide a trimmer for minimally invasive surgery of cartilage transplantation, which solves the problem that the cartilage defect area cannot be trimmed before the cartilage scaffold material is implanted in the prior art, resulting in the implantation of the cartilage scaffold material. The problem of poor adhesion

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