Pelvic prosthesis

A technology of pelvic prosthesis and iliac crest, which is applied in prosthesis, medical science, hip joint, etc., can solve the problem of poor recovery of acetabular rotation center, adaptability of patients with bone defects, prosthesis and Problems such as poor bonding strength of the host bone interface, to achieve good self-adaptation, increase stability and safety, and improve long-term stability

Pending Publication Date: 2020-10-13
BEIJING LIDAKANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing standard pelvis has the following problems. It cannot meet the adaptability to patients with different degrees of bone defect, the stability is poor, and the bonding strength between the prosthesis and the host bone interface is poor. The degree of bone defect is different, and the recovery of the center of acetabular rotation cannot be achieved well.

Method used

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Embodiment Construction

[0029] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] Such as figure 1 As shown, the present embodiment provides a pelvic prosthesis, including an acetabular cup 6, an acetabular cup 6, an ilium support 1 and a pubic plate 7, and the acetabular cup 6 is provided with an ilium support 1 and a pubic plate respectively 7. The ilium support 1 and the pubic plate 7 are set at an angle. An ilium support connecting plate 5 is arranged on the ilium support 1 . There is a tantalum-coa...

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Abstract

The present invention provides a pelvic prosthesis. The pelvic prosthesis comprises an acetabular cup, an ilium support and a pubis plate are respectively arranged on the acetabular cup, an ilium support connecting plate is arranged on the ilium support, and tantalum coating porous bone trabecular interfaces are arranged at a contact part of the ilium support connecting plate and an ilium, a contact part of the pubis plate and a pubis, and a contact part of the ilium support and human body; a shape of the ilium support is irregular polygon, a plurality of locking long nail holes are arranged in the ilium support, axial directions of the plurality of the locking long nail holes are different, and locking long nails penetrate through the locking long nail holes of the ilium support to be connected with sacrum or lumbar vertebrae. The tantalum coating porous bone trabecular interfaces on the ilium support can ensure a sufficient bonding strength of the prosthesis and a host bone interface, improve long-term stability of the prosthesis in vivo and realize deep fusion of the prosthesis and a host bone tissue; the tantalum coating porous bone trabecular interfaces of the ilium support connecting plate increase stability and safety of the prosthesis and can play roles in mechanical support and bone ingrowth; and the locking long nail holes increase the stability of the prosthesis andreduce mounting difficulty of the prosthesis..

Description

technical field [0001] The invention relates to the technical field of orthopedic implants, in particular to a pelvic prosthesis. Background technique [0002] The pelvis is composed of the left and right hip bones, the sacrum, the coccyx and the bone connections between them. The hip bones are composed of the ilium, pubic bone, and ischium. The three bones meet in the acetabulum, and the fusion cannot be completed until about adulthood. [0003] Pelvic bone tumor is a relatively common disease in pelvic injuries. Due to its complex structure and shape, and the resection range of pelvic tumor is the only way for the body to bear gravity, it is difficult to accurately resect the tumor and reconstruct it after tumor resection. Especially reconstructions, especially pelvic tumors involving the acetabulum. For pelvic metastases, the purpose of surgery is to relieve cancer pain or prevent pathological fractures. However, the main complications of artificial hemipelvic prosthesi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/34A61F2/32A61F2/30
CPCA61F2/30771A61F2/32A61F2/34A61F2002/3006A61F2002/30329A61F2002/30784
Inventor 周海明
Owner BEIJING LIDAKANG TECH
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