Bone trabecula hip joint system

A technology of trabecular bone and hip joint, which is applied in the field of trabecular bone hip joint system, can solve problems such as the lack of better hip joint products, and achieve the effects of facilitating osseointegration, prolonging service life, and solving severe deformities

Active Publication Date: 2015-11-18
JIASITE HUAJIAN MEDICAL EQUIP (TIANJIN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Secondly, at the present stage, clinicians still have no good hip joint products to solve complex joint replacement surgery and revision surgery with severe hip joint deformity and various forms of bone defects.

Method used

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  • Bone trabecula hip joint system
  • Bone trabecula hip joint system
  • Bone trabecula hip joint system

Examples

Experimental program
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Embodiment Construction

[0042] Such as Figure 1 to Figure 14As shown, a trabecular bone hip joint system of the present invention includes a series of trabecular bone modular femoral stem 1, femoral head 2, trabecular bone cuff, trabecular bone modular acetabular cup and trabecular bone The acetabular spacer 3; the trabecular femoral stem 1 includes a head 101, a handle 102 and a neck 103 connecting the head 101 and the handle 102; the neck 103 has a curved angle such that The head 101 and the shank 102 are arranged at an angle; the head 101 is cylindrical; the trabecular bone cuff is a cylindrical structure with a through taper hole inside, through which the The trabecular bone cuff is matched with the shank 102 of the trabecular bone modular femoral stem 1 for taper locking, and the upper end of the trabecular bone cuff is close to the neck 103 of the trabecular bone modular femoral stem 1; The inside of the femoral head 2 is provided with a recess 201, and the femoral head 2 can be matched with ...

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Abstract

The invention discloses a bone trabecula hip joint system. The system comprises a series of bone trabecula assembled femoral components, caput femoris, bone trabecula oversleeves, bone trabecula assembled acetabular cups and bone trabecula acetabulum cushion blocks. The surface structures of the bone trabecula assembled femoral components, the caput femoris, the bone trabecula oversleeves, the bone trabecula assembled acetabular cups and the bone trabecula acetabulum cushion blocks are all metal bone trabecula structures and manufactured by means of the metal 3D printing technology, the structural form of holes and porosity can be accurately controlled, a plurality of specifications are available, and assembly can be conducted freely. The system has the advantages that fastness and effectiveness are realized, postoperation osseointegration is facilitated, service life is prolonged, postoperation revision rate is reduced, serious femur and acetabulum deformation is effectively solved, complicated joint primary replacement surgery and revision surgery under the condition of various forms of bone defects can be conducted, and the requirements of various patients for prosthesis customization are met.

Description

technical field [0001] The invention belongs to the technical field of medical device design, in particular to a trabecular hip joint system. Background technique [0002] At the end of the 20th century, problems with acrylic cemented hip prostheses emerged. Mechanical loosening and extensive bone loss, sometimes with cement fragmentation, are the greatest concerns in total hip arthroplasty (THA). Physicians around the world have conducted a large number of experimental and clinical studies to minimize the use of bone cement and have proposed a method for biological fixation of total hip prosthesis. The key point of the biofixed prosthesis is bone ingrowth on the metal surface. The two prerequisites for bone ingrowth are immediate stability of the prosthesis during surgery and close contact between the porous surface of the prosthesis and the active host bone. In order to achieve the above conditions, the design The prosthesis must fill the medullary cavity of the proximal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/32
Inventor 刘念
Owner JIASITE HUAJIAN MEDICAL EQUIP (TIANJIN) CO LTD
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