Surgical tool for cartilage injury

Abstract

The invention discloses a surgical tool for cartilage injury, wherein the surgical tool includes a rod part; the rod part includes a first section and a second section; the first section is used for receiving rotation driving, and the end of the second section is provided with a spherical head; the first section is provided with a first wedge-shaped part, the end of the second section is providedwith a second wedge-shaped part, the first wedge-shaped part and the second wedge-shaped part are matched to achieve the rotation transmission of the first section to the second section. The surgicaltool also includes an elastic part; two ends of the elastic part are respectively connected with the first section and the second section, and the deformation force of the elastic part is set as thatwhen the resistance between the first section and the second section is greater than the preset value, the second section is separated from the first section to drive the elastic part to deform. According to the surgical tool for cartilage injury provided by the invention, the rod part is set into two sections and the middle part is subjected to transmission by the two wedge-shaped parts. When theresistance is large, the two wedge-shaped parts are separated to realize decoupling of the transmission; through reasonable pressure selection, the spherical head can remove damaged cartilage and bestuck when encountering normal cartilage.

Description

technical field [0001] The invention relates to medical technology, in particular to a surgical tool for cartilage damage. Background technique [0002] According to the statistics of the World Health Organization (WHO), there are currently 400 million people in the world suffering from joint diseases, of which more than 100 million are estimated to be in my country. At present, according to the degree of injury, the treatment methods for joint diseases include bone marrow stimulation, mosaic Plastic surgery, autologous chondrocyte transplantation, allogeneic chondrocyte transplantation, tissue engineering technology, artificial joint transplantation, etc. Patents such as CN20562191U, CN108201632A, CN108201635A, CN108478871A such as the authorized announcement number / application publication number all provide such treatment methods. [0003] In the prior art, no matter which of the above-mentioned treatment methods, it is necessary to clean up the diseased tissue on the join...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the surgical planer is driven by a motor to rotate at a high speed to remove the corresponding tissue. It is generally used to remove calcified cartilage in the repair of articular cartilage damage. The disadvantage of the prior art is that the cutting ability of the sharp planer driven by the motor It is strong and needs to be carefully grasped by the doctor. Due to the interference of factors such as field of view and on-site judgment, it is easy to remove part of the normal cartilage tissue during the operation.

Images