Cancellous bone bed shaper for medical cartilage graft recipients

Abstract

The invention relates to a medical forming device for a gristle transplanting receptor spongy bone bed. Multiple knife edges are connected to a knife head base connected with a knife head connecting rod through a universal ball joint. The knife head connecting rod is connected with a handle connecting rod and a handle, the handle is connected with a handle stopping block, and the handle stopping block is connected with a manual sliding impacting device or an electric impacting device. The defects that in the prior art, because a bone knife, a bone chisel and other simple tools are used for manually trimming, the bone cutting face is not flat, randomness is high, and the bone cutting face of a receptor and the bone cutting face of a donor are prone to being mismatched, which is adverse to bone healing are overcome. The receptor spongy bone bed can be formed through one-off impacting, so that forming efficiency is improved, operation time is shortened, and the form of the receptor spongy bone bed is kept uniform. The manual sliding impacting device and the electric impacting device can be selected for use, so that the form of the spongy bone, after cutting, below the transplanted donor gristle is completely matched with that of the receptor sponge bone bed, a transplanted donor and a receptor are completely matched, and bone healing is facilitated.

Description

technical field [0001] The invention relates to a medical device, in particular to a medical cartilage transplant recipient cancellous bone bed shaper. Background technique [0002] Before the present invention, when bulk allogeneic cartilage was transplanted, the trimming of the subchondral cancellous bone of the recipient was manual operation, using simple tools such as osteotome and osteotome. The osteotomy surface trimmed manually is uneven and random, resulting in inconsistent shape of each osteotomy surface, and easily causing mismatch between the recipient osteotomy surface and the donor osteotomy surface. Generally, the manual osteotomy is a single-plane osteotomy. Both the donor subchondral cancellous bone and the recipient cancellous bone bed are plane. Therefore, the contact area between the donor and the recipient is small, and the replacement bone takes a long time to heal. Good for bone healing. Contents of the invention [0003] The object of the present i...

AI Technical Summary

Problems solved by technology

Manual trimming of the osteotomy surface is uneven and random, resulting in inconsistent shape of each osteotomy surface, and easily causing mismatch between the recipient osteotomy surface and the donor osteotomy surface

Generally, the manual osteotomy is a single-plane osteotomy. Both the donor subchondral cancellous bone and the recipient cancellous bone bed are plane. Therefore, the contact area between the donor and the recipient is small, and the replacement bone takes a long time to heal. good for bone healing

Images