A dental implant surgery wrench with overload protection function

Abstract

The invention discloses a dental implant surgical wrench with overload protection function, which comprises a sleeve assembly with a cavity, a handle, and a collet, the sleeve assembly is provided with a transverse hole and a longitudinal hole communicating with the cavity, and the collet It is connected with the horizontal hole, and the handle is connected with the longitudinal hole. The handle is provided with a driving gear that can rotate with the handle, and the chuck is provided with a driven gear that meshes with the driving gear. An electric control module is provided between the handle and the driving gear. A torque sensor is arranged in the cavity, and the torque sensor is connected with the electric control module. Rotate the handle by hand or with an external motor. When the torque sensor detects that the torque of the driving gear and / or the driven gear reaches the limit torque of the dental implant, the electric control module can control the meshing state of the driving gear and the driven gear, That is to say, from the engaged state to the non-engaged state, the function of overload protection is realized. The invention is used for dental implant operation wrench.

Description

Technical field [0001] The present invention relates to a surgical wrench for dental implants having overload protection functions. Background [0002] Because dental implants have good support, retention, and stabilization functions, they have been more and more widely used and developed. According to the survey, about 50% of patients with missing teeth in developed countries prefer implants to repair missing teeth, and with the continuous development of the economy in China, the annual use of implants has also increased rapidly at a rate of more than 100%. Commonly used implants are two-stage dental implant systems, where the connection of implants, covering screws, central screws and implants is mainly achieved by threaded connections. Existing wrenches have certain limitations: the patient's oral condition is different, the limit torque is limited, and the joints of different sizes and models of implant systems vary in shape. According to clinical analysis, the initial stabi...

AI Technical Summary

Problems solved by technology

Existing wrenches have certain limitations: patients have different oral conditions, the limit torque is limited, and the connection parts of implant systems of different specifications and models have different shapes

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