Intramedullary bone fixing prosthesis/limb reconstruction system used after pelvic resection or amputation

Abstract

The invention relates to an intramedullary bone fixing prosthesis / limb reconstruction system used after pelvic resection or amputation. The intramedullary bone fixing prosthesis / limb reconstruction system comprises the following parts of a fixing handle and an acetabular cup, the fixing handle comprises a fixing handle body, a first end part and a second end part, the first end part and the second end part are located at the two ends of the fixing handle body, and the first end part is in contact fit with the ilium; and the acetabular cup comprises an acetabular cup body and a connecting part located on the acetabular cup body, the connecting part is adjustably connected with the second end part, and the acetabular cup body is in contact fit with the acetabulum. According to the prosthesis, only the metal acetabular cup is arranged outside a bone, after the polyethylene acetabular cup is bonded through bone cement, basically no prosthesis metal part makes contact with tissue outside the bone, and the risk of infection is reduced to the maximum extent. For the amputation condition, the intramedullary bone metal fixing handle is connected with a connector and a connection protector and then connected with an existing artificial limb system, the problem that an amputation postoperative patient wears an artificial limb at present is solved, and bony structure fixation is achieved.

Description

technical field [0001] The invention relates to an intramedullary bone fixation prosthesis / prosthesis reconstruction system for hemipelvic resection or hemipelvic amputation, and belongs to the technical field of medical devices. Background technique [0002] The pelvis is divided into three regions: the ilium, the periacetabulum, and the pubic ischia. The physiological functions of the three parts are different: the ilium is the attachment point of the hip joint power device (iliac muscle and gluteus muscle), and it also has the function of supporting the abdominal organs; the acetabulum is the main component of the hip joint, and this part It forms a joint with the femoral head to realize hip joint movement and realize the walking function of the lower limbs. This joint is characterized by heavy bearing and high stability requirements. In the clinical practice of orthopedics, the acetabular and surrounding bone defects may be encountered in a variety of situations such as...

AI Technical Summary

Problems solved by technology

After fixation, connect the metal acetabular cup to restore the original position of the acetabulum, and then restore the hip joint and stress conduction through the artificial hip joint system; Biological press-fit fixation (in this case, the cement fixation method cannot provide reliable strength), the distal end passes through the skin through the connector, and then connects with the existing prosthetic system through the connection protector, which solves the problem that the patient cannot wear the prosthesis, or Wearing artificial limbs is unstable and affects walking and other problems

Images