Tendon trimmer

Abstract

The invention relates to a tendon trimmer. The tendon trimmer comprises an up-and-down driving servo motor, an up-and-down moving sliding table, an up-and-down smooth rod piece, an up-and-down sliding threaded rod, a tendon scraping device base, a tendon fixing device, a bolt for the tendon fixing device, an up-and-down moving smooth rod piece, a left-and-right driving servo motor, a left-and-right moving smooth rod piece, a tendon scraping plate and a left-and right sliding threaded rod. The up-and-down moving sliding table sleeves the up-and-down smooth rod piece and the up-and-down sliding threaded rod and can slide up and down along the up-and-down smooth rod piece; the up-down moving sliding table comprises a first up-down moving sliding table body and a second up-down moving sliding table body. The left-right moving smooth rod piece and the left-right sliding threaded rod are horizontally arranged between the first up-down moving sliding table body and the second up-down moving sliding table body. The tendon scraping plate is arranged on the left-right moving smooth rod piece and the left-right sliding threaded rod in a sleeving manner and can slide left and right along the left-right moving smooth rod piece.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a tendon trimmer. Background technique [0002] In clinical practice, tendon autograft or allograft is often used for cruciate ligament graft reconstruction. When preparing the ligament graft, the doctor needs to hold the blunt end of the scalpel handle as a scraper or hold a simple blunt edge plate to peel off the residual muscle on the tendon. [0003] In the prior art, a hand-held scraper is used for tendon trimming. During the operation, a specialized surgeon is required to perform manual operation. During the operation, a large external force must be applied to the scraper. The scraping operation is inconvenient and the tendon is easy to slip, which needs to be repeated many times. Curettage requires a long wait during the operation. In addition, due to the uneven pressure distribution and easy concentration of stress during the scraping process with the traditiona...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, a hand-held scraper is used for tendon trimming. During the operation, a specialized surgeon is required to perform manual operation. During the operation, a large external force must be applied to the scraper. The scraping operation is inconvenient and the tendon is easy to slip, which needs to be repeated many times. curettage, need to wait a long time during the operation

In addition, the pressure distribution of the traditional scraper is uneven due to the force of the hand during the scraping process, and the stress is easy to concentrate, and there is a potential risk of disconnecting the connection between the longitudinal fibers of the tendon

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