Orthopedic surgery assistant system and end effector

Abstract

An orthopedic surgery assistant system includes: a multi-axis mechanical arm module; at least one end effector, including: two linear actuating elements, two actuating element encoders, a central annular structure, a connector, and a power / torque sensing element; a guide and positioning module; and a surgery remote control module, so that a user pulls the multi-axis mechanical arm and the end effector according to a real-time three-dimensional model, so that the multi-axis mechanical arm performs translation and rotation motions in a plurality of axial directions on an applied end, and the end effector performs a rotation motion of two degrees of freedom on the applied end.

Description

BACKGROUNDTechnical Field[0001]The present disclosure relates to an end effector, and in particular, to an end effector of an orthopedic surgery assistant system.Related Art[0002]At present, in an orthopedic trauma reduction surgery, a minimally invasive method accounts for approximately 60% of the total and has become a mainstream method. In domestic surgeries, fractures near hips account for a largest proportion, followed by long bones of limbs and wrists. A cavum pelvis is the part that has the greatest potential to be assisted by a robot. The most main problems that doctors at a clinical surgery end face are: (1) C-Arm needs to be continuously photographed in a reduction process, causing a large amount of radiation exposure for a doctor and a patient; (2) surrounding tissues have a great antagonism force (an applying force of approximately >100 N is needed on average), and a doctor may easily get tired during a surgery, affecting surgery applying quality; and (3) an image of ...

AI Technical Summary

Benefits of technology

The present invention is an orthopedic surgery assistant system that uses two actuators and a central annular mechanism to achieve two degrees of freedom of rotation for the applied end. The system is designed to be light weight and easy to use. The technical effect is to improve the accuracy and precision of orthopedic surgery procedures.

Problems solved by technology

The most main problems that doctors at a clinical surgery end face are: (1) C-Arm needs to be continuously photographed in a reduction process, causing a large amount of radiation exposure for a doctor and a patient; (2) surrounding tissues have a great antagonism force (an applying force of approximately >100 N is needed on average), and a doctor may easily get tired during a surgery, affecting surgery applying quality; and (3) an image of a cross section of a tissue cannot be learned from C-Arm, and axial alignment is not easy.

Because the number of included actuating elements is relatively large, consequently, both a volume and a weight are relatively great, and costs are also high.

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