Carbonaceous femoral head prosthesis enchased with metal liner

A technology of inlaying metal and femoral heads, which is applied to femoral heads, hip joints, joint implants, etc., can solve problems such as individual differences in patients and thigh pain, and achieve good social and economic benefits and wide adaptability , The effect of convenient operation

Inactive Publication Date: 2008-05-07
陈明钊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, there are only a few kinds of titanium prosthesis stems, which are far from meeting the individual differences o

Method used

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  • Carbonaceous femoral head prosthesis enchased with metal liner
  • Carbonaceous femoral head prosthesis enchased with metal liner
  • Carbonaceous femoral head prosthesis enchased with metal liner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: A carbonaceous femoral head prosthesis with a metal inner sleeve connected by bone cement

[0024] With reference to Fig. 1,2,3,4, this adopts the carbonaceous femoral head prosthesis of the inlaid metal inner sleeve of bone cement connection, is made of carbonaceous femoral head 1, is used in the fixed groove 1-1 of carbonaceous femoral head The medical bone cement 8 is fixedly connected with a metal inner sleeve 2 . The metal inner sleeve is composed of a cylindrical sleeve body 4 and a closed-end sleeve top 5, and an annular sleeve eaves 6 are arranged on the outer edge of the metal inner sleeve, and an exhaust hole 3 is opened on the annular sleeve eaves; The inner side of the ring-shaped eaves is provided with a ring-shaped positioning sleeve 7 fixedly connected with the metal inner sleeve. The inner diameter, depth and taper of the metal inner sleeve match the outer diameter, length and taper of the handle head 10 of the universal prosthesis handle 9 ....

Embodiment 2

[0026] Embodiment 2: A carbonaceous femoral head prosthesis with a threaded metal inner sleeve

[0027] Referring to Figures 5, 6, 7, and 8, this carbonaceous femoral head prosthesis with a metal inner sleeve that adopts threaded connection is composed of a carbonaceous femoral head 1, and threads are used in the fixing groove 1-1 of the carbonaceous femoral head. The fixed connection has a metal inner sleeve 2. The metal inner sleeve is composed of a cylindrical sleeve body 4 and a cover top 5 at the closed end. An annular sleeve eaves 6 are arranged on the outer edge of the metal inner sleeve, and an anti-rotation hole 11 is provided on the annular sleeve eaves to prevent An anti-rotation hole 12 is opened on the carbon femoral head corresponding to the rotation hole, and an anti-rotation pin 13 is installed in the anti-rotation hole and the anti-rotation hole, and a buffer gasket is installed between the annular sleeve eaves and the carbon femoral head 14. The inner diame...

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PUM

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Abstract

The invention relates to a carbonaceous caput femoris false body inserted with a metal inner housing. The false body is composed of carbonaceous caput femoris, and is characterized in that the metal inner housing is firmly fixed in a fixed slot of the carbonaceous caput femoris. The invention can lead the carbonaceous caput femoris with different specifications to being matched with a universal false body handle, the operation difficulty is decreased, the error caused by an artificial factor is avoided, the operation time is shorten obviously, and the invention can lead the carbonaceous caput femoris to be popularized and applied widely. The matching precision of the metal inner housing and the false body handle is high, the mechanical strength is high, the stable non-deformation can be kept permanently, the stability of the false body in a medullary cavity is improved, and the compression resistant capacity is improved more than one time compared with the prior false body. The invention not only is in favor of the operation of a orthopaedic surgeon, but also can lead the carbonaceous caput femoris to be matched with various biological type and non-biological type false body handles with different specifications corresponding to the patient individual, the long term and anxious individualization choice of a medical worker is realized. The invention has use value, and can generate better social efficiency and economic efficiency after being popularized and applied.

Description

technical field [0001] The invention relates to the improvement of a carbonaceous femoral head prosthesis, specifically a carbonaceous femoral head prosthesis inlaid with a metal inner sleeve, which belongs to the prosthesis in the medical field. Background technique [0002] The carbon-titanium combined artificial femoral head (ZL99 1 26815.6, 91 2 33139.9) has been widely used because of its advantages such as light weight, wear resistance, pressure resistance, corrosion resistance, high mechanical strength and long service life. Applied clinically. However, in the clinical operation, the doctor should choose the appropriate carbon femoral head according to the specific conditions of different patients, and according to the patient's bone marrow cavity, choose the only few titanium prosthetic stems that can match it, and then insert the carbon femoral head The femoral head and the titanium prosthesis stem are bonded and fixed with bone cement, and then placed into the bon...

Claims

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Application Information

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IPC IPC(8): A61F2/36
Inventor 陈明钊滕月张静于晓红白世岩王庚胜
Owner 陈明钊
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