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Intramedullary cannula and prosthesis with same

A technology of inner cannula and medullary cavity, which is applied in the field of intramedullary cannula and its prosthesis, which can solve the problems of poor stability and achieve the effect of strengthening strength, facilitating fixation and improving stability

Pending Publication Date: 2020-09-11
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a cannula in the medullary cavity and a prosthesis with it, so as to solve the problem of poor stability of prosthesis fixation in the prior art

Method used

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  • Intramedullary cannula and prosthesis with same
  • Intramedullary cannula and prosthesis with same
  • Intramedullary cannula and prosthesis with same

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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 to Figure 4 As shown, the intramedullary cannula of this embodiment includes: a tubular body 10, which is a mesh tube woven from material filaments 1, and the material filaments 1 are made of memory materials, and the inner hole of the tubular body 10 Capable of accommodating prostheses.

[0026] Applying the technical solution of this embodiment, the tubular body 10 is made of memory material, and the tubular body 10 has a contracted state and a supported state. When the tubular body 10 is in the contracted state, its volume is small, and it is convenient to put into the medullary cavity 3 . When the tube body 10 is in a supported state, its volume increases. During...

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Abstract

The invention provides an intramedullary cannula and a prosthesis with the same. The intramedullary cannula comprises a cannula body; the cannula body is a net-shaped cylinder formed by weaving material wires; the material wires are made of memory materials; and the prosthesis can be contained in an inner hole of the cannula body. By means of the technical scheme, the problem that in the prior art, the prosthesis fixing stability is poor can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of prosthesis installation, in particular to an intramedullary cannula and a prosthesis having the same. Background technique [0002] At present, artificial joint replacement has been widely used in clinical treatment and is one of the standard operations for the treatment of joint diseases. Artificial joint replacement has the advantages of relieving pain, improving joint function, and restoring joint stability and limb function. However, due to the problems of the material of the joint prosthesis itself and the replacement technique, complications such as loosening and dislocation may also occur after surgery. Revision is required when the above complications occur. [0003] In the prior art, when the replacement prosthesis is revised, due to problems such as osteolysis and stress shielding, the removal of the prosthesis and bone cement will cause a large-scale bone defect, which will bring serious prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/46A61F2/30A61F2/28
CPCA61F2/4603A61F2/4601A61F2/30A61F2/2846A61F2002/4615A61F2002/2835
Inventor 马小林
Owner BEIJING AKEC MEDICAL
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