Visual acetabulum prosthesis imbedding device

Abstract

The invention provides a visual acetabulum prosthesis imbedding device. Through the arrangement of a camera, an operator can conveniently know the implantation condition of an acetabular cup in real time through a lens in the operation process, the implantation position of the acetabular cup is clearly and visually known, the operation difficulty is reduced, the implantation position of the acetabular cup is accurately mastered, and the probability of deviation of implantation of the acetabular cup is reduced. By arranging a light-guide fiber, the light-guide fiber supplements light for the camera in real time, so that the clear view is ensured. By arranging a normal saline flushing pipeline and a negative pressure suction pipeline, blood and tissue debris around the camera are cleaned intime, and the negative pressure suction pipeline can suck out discharged normal saline and some impurities from the position between the acetabular cup and the camera in time. Because the normal saline flushing pipeline and the negative pressure suction pipeline are respectively located at two opposite sides of the camera, a water curtain can be formed in front of the camera, thereby facilitatingthe real-time cleaning of impurities interfering with the camera, and guaranteeing the definition of a video image.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a visual acetabular prosthesis implantation device. Background technique [0002] Indications for total hip replacement include: osteoarthritis (OA), rheumatoid arthritis (RA), traumatic arthritis, severe necrosis of the femoral head (ONFH), hip tumors, ankylosing spondylitis, etc. The goal is to restore and improve joint motion by replacing the hip joint to eliminate pain, correct deformity, and rebuild a stable joint. [0003] The hip joint is the largest weight-bearing joint in the human body. The acetabulum is located in the pelvis and has a hemispherical shape, containing the spherical femoral head. [0004] The placement of the acetabular component is a very important part of total hip replacement. [0005] The general process of acetabular prosthesis placement is as follows: making an incision on the patient's body surface (divided into anterior approach, anter...

AI Technical Summary

Problems solved by technology

[0008] However, during the placement of the acetabular prosthesis, the existence of bone debris and surrounding soft tissue interferes with the placement to a certain extent.

And the current method of judging whether the acetabular prosthesis is in place: one is the "hand feel" of the operator, which is a subjective judgment, and the reliability is not good; the other is the method of intraoperative fluoroscopy, but the It is necessary to separate the inserter from the acetabular prosthesis during mid-fluoroscopy. If the placement is found to be poor, the inserter needs to be reinstalled and then reinserted. During repeated removal and installation, the placement of the acetabular prosthesis may occur. The deviation of the insertion angle and the damage of the interface caused by the friction between the surface coating and the bone affect the reliability of the initial stability and the efficiency of the subsequent bone ingrowth, etc.

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