Fixator of bone and cartilage and using method of fixator

Abstract

The invention discloses a fixator of bone and cartilage and a using method of the fixator. The fixator of the bone and the cartilage is pre-embedded into a receptor bone bed, the fixator is a bracketformed by absorbable medical polymer materials through 3D printing, the bracket is composed of a barrel body on the upper part and a cone on the lower part, and the fixator clamps and fixes donor bonecultured by tissue engineering and the cartilage. According to the fixator of the bone and the cartilage and the using method of the fixator, a tissue engineering donor can be reliably fixed to the receptor bone bed, the fixing processing cannot wear peripheral cartilage, and the fixing processing is extremely simple; the donor is always in close contact with the receptor bone bed, and a stable heal environment is provided; and after the fixator fixes the donor bone to the cartilage, finally no foreign matter exists in a body, and complication cannot occur.

Description

technical field [0001] The invention relates to a bone and cartilage fixer and a method for using the same, belonging to the technical field of medical equipment. Background technique [0002] At present, when the cartilage is missing or loses function due to trauma or wear and tear, the cartilage needs to be repaired by transplantation. There are two methods of cartilage transplantation in the existing technology, namely autologous cartilage transplantation and tissue engineering cultured cartilage transplantation; Cartilage mosaic transplantation, the disadvantages of this transplantation method are that it can only deal with small-area defects, and the second is that the cartilage donor area is limited. Now with the development of technology, tissue engineering culture of cartilage has broad prospects. , to replant the cartilage to the defect, which can not only repair a large area of ​​defect, but also solve the defect of insufficient donors. [0003] In the prior art, ...

AI Technical Summary

Problems solved by technology

[0002] At present, when the cartilage is missing or loses function due to trauma or wear and tear, the cartilage needs to be repaired by transplantation. There are two methods of cartilage transplantation in the existing technology, namely autologous cartilage transplantation and tissue engineering cultured cartilage transplantation; Cartilage mosaic transplantation, the disadvantages of this transplantation method are that it can only deal with small-area defects, and the second is that the cartilage donor area is limited. Now with the development of technology, tissue engineering culture of cartilage has broad prospects. , to replant the cartilage to the defect, which can not only repair a large area of ​​defect, but also solve the defect of insufficient donor

[0004] One is to fix a small amount of sutures around the donor cartilage with absorbable sutures; the disadvantage of this method is that it is difficult to operate, and it is easy to tear the parts that need to be sutured on both sides, and it is not conducive to the integration of the donor cartilage and the recipient bone bed Fusion, resulting in a longer time for the donor cartilage to recover its biomechanical properties; sutures can cause wear to the surrounding cartilage before being absorbed;

[0005] The second is to drill an anchor with thread into the recipient's bone bed first, and then use the thread at the tail to suture and fix the donor cartilage. The disadvantage of this method is that the suture part is easy to tear and the operation is difficult. In addition, the anchor drills into the human body Afterwards, it always exists as a variant of the host, which is easy to deform and loosen, and complications will also occur

[0006] In summary, there is no ideal solution to the problem of how to effectively fix the donor cartilage in the prior art. This technical problem has been perplexing those skilled in the art. Therefore, it is necessary to find a new and effective bone and It is urgent and necessary for cartilage fixators to solve the deficiencies in the prior art

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