Replacement equipment for artificial ilium

A technology of artificial ilium, applied in bone implants, medical science, hip joints, etc., can solve the problems of shortening, inability to connect and fix the sacrum, lameness, etc., and achieve the effect of small size

Inactive Publication Date: 2005-03-30
温中一
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  • Abstract
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AI Technical Summary

Problems solved by technology

The disadvantage of this kind of operation is that when the tumor and tumor bone are resected, the iliac bone defect and the hip joint are absent, and the patient is prone to complications such as limb shortening, joint displacement, and claudication
However, there are also limitations. First, the existing prosthesis is developed for the reconstruction of bone defects around the acetabulum. When the tumor invades the large pelvis and the ilium is resected, this prosthesis cannot be effectively connected and fixed with the sacrum to achieve transmission of force

Method used

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  • Replacement equipment for artificial ilium
  • Replacement equipment for artificial ilium
  • Replacement equipment for artificial ilium

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the drawings and embodiments.

[0025] The present invention is an iliac bone defect reconstruction device used after extensive resection of tumors around the large pelvis of the human body. From the perspective of human anatomy, the large pelvis is located above the pelvis and surrounded by the ilium. The small pelvis is located below the pelvis and consists of the ischia and pubis. When the body is upright, the body weight is transmitted from the sacrum through the iliac joints to the femurs on both sides; when in the sitting position, it is transmitted to the ischial joints on both sides. Therefore, the device is composed of a sacrum connecting device, an ilium connecting device, and a femur and ischial connecting device.

[0026] See attached figure 1 The components of the sacral connecting device of the present invention are composed of an adjuster 13, a fastening bolt 14, a connecting plate 15,...

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Abstract

An artificial bone displacing equipment for treating the pelvis major defect is composed of femur-ischium connector, ilium displacing unit and sacrum connector with angle regulator between connection plate and bone supporting plate.

Description

Technical field [0001] The invention relates to the medical field of iliac bone defect reconstruction after human pelvic tumor resection, in particular to the design of an artificial iliac bone replacement device used after pelvic tumor resection. Background technique [0002] The human pelvis is composed of left and right hip bones (including ilium, pubis, and ischia), sacrum, coccyx and their ligaments. It can be divided into two parts: large pelvis and small pelvis. The pelvis is an important part of the connection between the trunk and the lower extremities. Its main features are: (1) The pelvis is the largest flat bone group in the human body, containing a large amount of cancellous bone, which is filled with functional bone marrow. (2) There are many important organs, blood vessels and nerve plexus in the pelvic ring. (3) The pelvis is one of the main weight-bearing parts of the human body and accepts body weight from the sacrum. [0003] In addition to the difference in si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/28
CPCA61F2002/30001A61F2/34A61F2/30734
Inventor 温中一温大维徐万鹏
Owner 温中一
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