Bone bolt and manufacturing process of bone bolt

Abstract

The invention discloses a bone-joining bolt. The bone-joining bolt comprises a bolt cap, a bolt rod, a bolt head, an elastic piece and a main channel, wherein an adjusting screw is arranged on the bolt cap; the bolt rod comprises a frustum section and a threaded section, the threaded section is connected to the bolt cap through the frustum section; the bolt head comprises a cylindrical section and a conical section, a plurality of debris containing grooves are formed in the cylindrical section, a plurality of cutting grooves are formed in the conical section, each cutting groove is communicated with the corresponding debris containing groove, main cutting edges and auxiliary cutting edges are formed at the circumference surface connecting positions of the cutting grooves and the conical section, and the bolt head further comprises a plurality of debris discharging channels which are communicated with the debris containing grooves; the elastic piece is fixedly arranged on the bolt rod in a sleeving mode and comprises a guide section and a plurality of elastic arms, one end of each elastic arm is connected to the guide section, and the other end of each elastic arm extends to the bolt rod; a debris suction hole in the bolt cap is communicated with the debris discharging channels through the main channel. The bone-joining bolt is firm in connection, less bone debris remains, and two bone fracture surfaces are enabled to be close to each other so as to accelerate healing.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a bone bolt, and the invention also designs a manufacturing process for the bone bolt. Background technique [0002] Bone screw is an internal fixation device for treating fractures. In orthopedic surgery, it is often necessary to use bone plates and bone screws to fix the fracture site. In order to reduce the operation time, self-drilling and self-tapping screws are usually used. Currently, the commonly used Bone screws usually use cutting grooves to discharge bone debris during the operation process. During the discharge process, some bone debris will remain in front of the screw and bone, which will loosen the screw after a long time and affect the healing effect. In addition, the existing bone screws Most of them can only play a role of fixation, but cannot realize the effect of pulling the two fracture surfaces of the fracture closer to pressurize, which affects the ...

AI Technical Summary

Problems solved by technology

[0002] Bone screw is an internal fixation device for treating fractures. In orthopedic surgery, it is often necessary to use bone plates and bone screws to fix the fracture site. In order to reduce the operation time, self-drilling and self-tapping screws are usually used. Currently, the commonly used Bone screws usually use cutting grooves to discharge bone debris during the operation process. During the discharge process, some bone debris will remain in front of the screw and bone, which will loosen the screw after a long time and affect the healing effect. In addition, the existing bone screws Most of them can only play a fixed role, but cannot achieve the effect of bringing the two fractured surfaces closer together and pressurizing them, which affects the healing time of the bone

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