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A trabecular 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 benefits of postoperative integration, reduce postoperative revision rate, and solve severe deformities Effect

Active Publication Date: 2018-01-12
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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  • A trabecular hip joint system
  • A trabecular hip joint system
  • A trabecular hip joint system

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Embodiment Construction

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

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Abstract

The invention discloses a trabecular bone hip joint system, which comprises a series of bone trabecular modular femoral stems, femoral heads, bone trabecular cuffs, bone trabecular modular acetabular cups and bone trabecular acetabular pads block; the surface structure of the series of trabecular bone modular femoral stems, femoral heads, bone trabecular cuffs, bone trabecular modular acetabular cups and bone trabecular acetabular pads are all metal trabecular bone The structure is manufactured by metal 3D printing technology, the structure shape and porosity of the holes can be precisely controlled, and there are various specifications, which can be combined arbitrarily. The present invention is fast and effective, is beneficial to postoperative integration, prolongs service life, reduces postoperative revision rate, and effectively solves severe deformity of femur and acetabulum and complex joint replacement surgery and revision surgery accompanied by various forms of bone defects. , the advantage of meeting the customized needs of various patients for prostheses.

Description

Technical field [0001] The invention belongs to the technical field of medical device design, and particularly relates to a trabecular hip joint system. Background technique [0002] At the end of the 20th century, problems related to the fixation of hip prostheses with acrylic bone cement gradually emerged. Mechanical loosening and extensive bone loss sometimes accompanied by bone cement fragmentation are the most concerned issues in total hip arthroplasty (THA). Doctors around the world have conducted a large number of experiments and clinical studies to minimize the use of bone cement, and proposed methods for biofixation of total hip prostheses. The key point of bio-fixed prosthesis is bone ingrowth on the metal surface. The two prerequisites for bone ingrowth are that the prosthesis obtains immediate stability during the operation and the porous surface of the prosthesis is in close contact with the active host bone. In order to achieve the above conditions, the design is d...

Claims

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Application Information

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