Acetabular prosthesis positioner

Abstract

The invention relates to an acetabular prosthesis positioner. The acetabular prosthesis positioner is used for determining an abduction angle and a forward inclination angle of an acetabular prosthesis in hip replacement. The acetabular prosthesis positioner comprises a base assembly, a bracket assembly, a guide assembly, a first locking assembly and a second locking assembly, wherein the base assembly comprises a hollow first guide rod; the bracket assembly comprises a second guide rod; the second guide rod is arranged on the first guide rod in a sliding fit mode; the first locking assembly is arranged on the first guide rod and controls actuation of the second guide rod relative to the first guide rod; the bracket assembly further comprises an arc surface; a sliding groove is formed in the arc surface; the guide assembly can slide along the sliding groove; the second locking assembly controls sliding of the guide assembly relative to the arc surface; a forward inclination angle scaleis arranged on the first guide rod; and an abduction angle scale is arranged on the arc surface. According to the invention, the forward inclination angle can be adjusted by rotating the second guiderod relative to the first guide rod, and the abduction angle can be adjusted by sliding the guide assembly on the arc surface.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to an acetabular prosthesis positioner. Background technique [0002] At present, in artificial hip replacement, in order to ensure the recovery quality of human joints after surgery, it is necessary to determine the anteversion and abduction angles of the acetabular prosthesis. Due to the lack of professional positioning measuring tools, often during the operation, The doctor placed the acetabular prosthesis based on experience and visual inspection, resulting in a large error in joint assembly. On the one hand, it affects the recovery of joint function after surgery, and on the other hand, the prosthesis is prone to loosening or even falling off, or the prosthesis is severely worn. Revision surgery increases the pain and financial burden of the patient, and is also prone to complications, seriously affecting the physical and mental health of the patient. Contents of the inventio...

AI Technical Summary

Problems solved by technology

[0002] At present, in artificial hip replacement, in order to ensure the recovery quality of human joints after surgery, it is necessary to determine the anteversion and abduction angles of the acetabular prosthesis. Due to the lack of professional positioning measuring tools, often during the operation, The doctor placed the acetabular prosthesis based on experience and visual inspection, resulting in a large error in joint assembly. On the one hand, it affects the recovery of joint function after surgery, and on the other hand, the prosthesis is prone to loosening or even falling off, or the prosthesis is severely worn. Revision surgery increases the pain and financial burden of the patient, and is also prone to complications, seriously affecting the physical and mental health of the patient

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