Scrapping and grinding device and operation method thereof

Abstract

The invention relates to a scrapping and grinding device and an operation method thereof. The scrapping and grinding device comprises an upper casing and a base, wherein a bone drilling cavity is arranged along the inner wall of the upper casing in the upper casing; a bone drill bit is vertically arranged in the bone drilling cavity; the bone drill bit is controlled by and connected with a micro motor. The scrapping and grinding device is characterized in that one third of outer wall surface of the upper end of the bone drill bit adopts a toothed spherical surface, another one third of outer wall surface adopts a smooth spherical surface, and the rest one third of outer wall surface adopts a stepped rib spherical surface; the lower end of the bone drill bit is connected with a rotary sliding sleeve; external threads are formed in the outer wall surface of the lower end of the bone drill bit; internal threads are formed in the inner wall surface of the upper end of the rotary sliding sleeve; the external threads are matched with the internal threads; the bottom of the rotary sliding sleeve is fixed to the base; the base and the upper casing form axial rotary fixing. The scrapping and grinding device can perform operation of grinding, scrapping, attracting and rubbing on bone tuberculosis lesion, and achieves the purpose of minimally invasive surgery; meanwhile, attraction and illumination are beneficial to lesion exposure; an external display can magnify the lesion and reserve surgery video.

Description

[technical field] [0001] The invention relates to the technical field of medical devices, in particular to a scraper and its operating method. [Background technique] [0002] Nowadays, bone and joint diseases are common and frequently-occurring diseases in young and old people, and many patients need surgery. Bone and joint tuberculosis is one of the common and frequently-occurring diseases, and most of them require surgical treatment. It is very difficult to treat. However, the formation of most complications, such as incision non-union, secondary operation, recurrence, etc., is mostly related to the failure to remove the lesion during the operation. [0003] At present, there are many surgical instruments for bone and joint tuberculosis, such as curettes, bone drills, etc., but there is a lack of a "sharp tool" that can remove the lesion with minimal trauma. The previous surgical methods severely damaged the normal bone tissue around the lesion. Because the lesions of bo...

AI Technical Summary

Problems solved by technology

Because the lesions of bone tuberculosis are concealed, deep in position, and poor in visibility, sometimes the operator removes too much tissue in order to better expose the lesions and remove the lesions, and finally has to perform internal fixation on the spine, resulting in iatrogenic injury

[0004] There are various types of lesions of bone and joint tuberculosis, and pus is easy to remove, but tuberculous granulation tissue, caseous substances and other necrotic substances, thickened synovium, pleural fiberboard, abscess wall close to normal tissues, etc. are difficult to remove, and the operation time prolongation, it is easy to cause fatigue, thinking that it has been cleaned up, but in fact the hidden lesions still remain.

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