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Sacrum prosthesis

A prosthetic and sacral technology, applied in the field of sacral prosthetics, can solve the problems of easy fatigue fracture, unreliable support, etc., and achieve the effects of avoiding subsidence, increasing stability, and improving internal force distribution

Inactive Publication Date: 2016-10-26
PEOPLES HOSPITAL PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide a sacral prosthetic body to solve the problem of unreliable support and easy fatigue fracture of the nail-rod system in the prior art

Method used

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  • Sacrum prosthesis
  • Sacrum prosthesis
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Embodiment Construction

[0024] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0025] Such as figure 1 As shown, the sacral prosthesis of this embodiment includes a prosthetic body and a nail-rod structure. Wherein, the prosthetic body includes two first prosthetic bodies 11 and a second prosthetic body 12 connected between the two first prosthetic bodies 11, the first end of each first prosthetic body 11 is connected with the second prosthetic body 12, and the two The first prosthetic body 11 and the second prosthetic body 12 are integrally formed structures, and the second end of each first prosthetic body 11 extends in a direction away from the second prosthetic body 12 and contacts with the ilium 1, and the second prosthetic body 12 The top of the top is in contact ...

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Abstract

The present invention provides a sacrum prosthesis comprising a prosthetic body comprising two first prosthesises and a second prosthesis connected between the two first prosthesises, and a screw and rod structure, wherein a first end of each first prosthesis is connected with the second prosthesis; the two first prosthesises and the second prosthesis are integrally molded; a second end of each first prosthesis extends in a direction away from the second prosthesis and is in contact with the ilium; the top of the second prosthesis is in contact with the lumbar vertebral body in a matching way; the screw and rod structure comprises connecting seats and rod bodies; the connecting seats are connected with the prosthetic body; and the rod bodies are fixed on the connecting seats. The technical scheme of the invention can effectively solve the problems that the supporting effect of a screw and rod system is unreliable and fatigue crack is liable to cause in the prior art.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a sacral restoration. Background technique [0002] The sacrum is an important bony structure connecting the human trunk and limbs. The upper part forms the lumbosacral joint with the lumbar spine, and the two sides form the sacroiliac joint with the pelvis. Because there are not only important sacral nerves inside the sacrum, but also the sacroiliac joint is the only structure that connects the axial bone and the bones of the lower limbs. Therefore, surgical resection of this site has a greater impact on neurological function and structural stability. For patients with sacral tumors, the combination of radiotherapy, chemotherapy and tumor resection is the first choice for most sacral tumors. However, since sacral tumors have few early symptoms and are often huge when discovered, for sacral tumors, the resection range is relatively large during surgery, which seriously damages th...

Claims

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Application Information

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IPC IPC(8): A61F2/28
CPCA61F2/28A61F2/2846A61F2002/30182A61F2002/30433A61F2002/30537A61F2002/30985A61F2002/30995
Inventor 郭卫王彩梅姬涛
Owner PEOPLES HOSPITAL PEKING UNIV
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