System for acetabulum reaming

Abstract

The invention discloses a system for acetabulum reaming. The system comprises a reamer, a coupler, a driving rotating assembly, a driving moving assembly, a positioning label, a pressure sensor, an optical positioning system, a lower computer controller, an upper computer controller, a loading shell and a wireless module. According to the invention, by arranging the reamer, the coupler, the driving rotating assembly, the driving moving assembly, the positioning label, the pressure sensor, the optical positioning system, the lower computer controller, the upper computer controller, the loading shell and the wireless module, the system achieves automation and intelligence in acetabulum reaming. The system is mainly applied to the technical field of robots.

Description

technical field [0001] The invention relates to the technical field of robots, in particular to a system for acetabular reaming. Background technique [0002] Total hip arthroplasty (THA) is the use of surgical methods to replace the articular surface, femoral head, and acetabulum damaged by disease or injury with artificial hip prosthesis, so as to remove the lesion, eliminate pain, and restore the original joint. Some functions and other effects. Among them, the acetabular reamer was used to grind away the acetabular cartilage at the hip joint of the patient before installing the prosthesis. In order to ensure the correct placement of the joint prosthesis structure, the acetabulum was reasonably reamed according to the preoperative planning value during the operation. It is very important to improve the success rate of clinical operations and avoid the instability of joint prosthesis after replacement. [0003] In the traditional total hip joint surgery, a common method ...

AI Technical Summary

Problems solved by technology

[0003] In the traditional total hip joint surgery, a common method for acetabular reaming is manual reaming and observation of the acetabulum. During the operation, only the subjective experience of the surgeon is used to judge the hip that needs to be reamed. The depth of the acetabulum, it is difficult to control the depth of the reaming, and it is easy to cause inconsistency with the pre-operative planning plan, and the acetabular reaming is too deep or too shallow, so that the acetabular prosthesis of the appropriate size is placed in the joint replacement surgery big trouble coming

In another common technical solution, although a mechanical arm with multiple degrees of freedom is used for auxiliary grinding, it is still manually slid for grinding only after the positioning of the mechanical arm. At the same time, in the process of operating the grinding gun , it is difficult to uniformly control the grinding force, and there is no pressure value display, so that the smooth and uniform grinding process cannot be guaranteed. The control equipment determines the relevant parameters of the grinding operation process according to the relevant characteristics of the sensed electrical signal, and the signal stability is not enough. Good, and it is easy to interfere during the operation and affect the quality of the operation

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