Disposable self-water-spraying orthopedic grinding drill handpiece

Abstract

The invention belongs to the technical field of grinding drills, and discloses a disposable self-water-spraying orthopedic grinding drill handpiece. A connecting hole is formed in the bottom of the handpiece, and the bottom edge of the handpiece is provided with a water inlet; an expanded gear bin is arranged in the middle of the handpiece, and a worm gear and a gear are mounted in the expanded gear bin; a drill outlet and a water nozzle are formed in the top; a spindle is arranged in the center of the handpiece; a connecting block is arranged at the far end of the spindle; a clamping groove is formed in the far end of the connecting block, and an orthopedic grinding bit is arranged at the near end; the rear of the worm gear is connected with an impeller; the front part of the worm gear isconnected with a first-stage gear and is in linear contact with a second-stage gear at the lower part in the gear bin; the front part of the secondary gear is connected with an eccentric shaft; and abearing is arranged on the eccentric shaft in a sleeving mode, and an extrusion block is arranged outside the eccentric shaft. The grinding drill handpiece is simple in structure and convenient to manufacture; the application is wide and expansion is easy; water spraying is integrated, and the flow is adjustable; the handpiece is disposable and high in safety. The risks of cross infection and blunting and breaking of the drill bit can be effectively avoided, convenience and rapidness are achieved, and safety is improved.

Description

technical field [0001] The invention belongs to the technical field of grinding and drilling, in particular to a disposable self-spraying orthopedic grinding and drilling mobile phone. Background technique [0002] At present: Grinding drill is a commonly used instrument in orthopedic surgery. It is often used in minimally invasive hallux valgus osteotomy correction, proximal fibular osteotomy and spinal laminectomy, especially minimally invasive hallux valgus osteotomy. Core instruments in orthopedics. Conventional sharpening and drilling mobile phones are made of metal and can be reused, but they are expensive, easy to wear, and require regular maintenance; repeated disinfection is easy to damage the mobile phone, and there is a risk of cross-infection if disinfection is not complete. Due to repeated use, the drill bit will gradually become blunt, resulting in poor osteotomy during the operation, increased fever, and even a risk of fracture. During the osteotomy process,...

AI Technical Summary

Problems solved by technology

[0004] (1) The conventional grinding and drilling mobile phone is made of metal, which is expensive, easy to wear, and requires regular maintenance; repeated disinfection is easy to damage the mobile phone, and there is a risk of cross-infection if disinfection is not complete

[0005] (2) Due to repeated use, the drill bits of conventional grinding and drilling mobile phones will gradually become blunt, resulting in poor osteotomy during the operation, increased fever, and even the risk of breaking

[0006] (3) During the osteotomy process of the conventional grinding drill handpiece, due to the high-speed rotation of the drill bit, high temperature will be generated, which will cause thermal damage to healthy tissues, and it is necessary to continuously spray water to cool down

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