Surgical impactor
By designing an electric surgical impactor, which utilizes a brushless DC motor and a planetary gear system to increase torque through gear reduction, and combines a Hall effect sensor and a motor controller, the problems of surgeon fatigue caused by bone hammers and inaccurate implantation of prostheses are solved, achieving precise impact force control and prosthesis fixation.
CN122094630APending Publication Date: 2026-05-26达纳·奥尔登
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 达纳·奥尔登
- Filing Date
- 2024-08-24
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing bone hammers cause surgeon fatigue and injury during joint replacement surgery, making it difficult to precisely control the impact force and affecting the implantation depth and fixation effect of prosthetic components.
Method used
An electric surgical impactor was designed, which uses a brushless DC motor, a planetary gear system and non-circular rotating parts. The torque is increased by gear reduction through the gear system, and the impact force is precisely controlled by a Hall effect sensor and a motor controller. It is powered by a lithium-ion battery.
Benefits of technology
It reduces surgeon fatigue and the risk of injury, enables precise control of impact force, and ensures accurate implantation and fixation of prosthetic components.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122094630A_ABST
Abstract
An impactor 10, which is electrically powered and suitable for use in surgery, includes: a housing; a brushless DC motor including a stator having multiple coils and a rotor having multiple magnets; a motor controller including a motor driver that supplies current to the coils of the stator to cause the rotor to rotate about the stator; a planetary gear train including an input section, a sun gear, planetary gears, a ring gear, and an output section; a shaft including a shaft section having a non-circular cross-sectional shape; and an impact assembly 15 including a drive component and a driven component.
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