Method of producing artificial prosthesis of disci intervertebrales nucleus pulposus |
Title： |
| Method of producing artificial prosthesis of disci intervertebrales nucleus pulposus |
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Application Number： |
200710175252 |
Application Date： |
2007/09/28 |
Announcement Date： |
2008/02/27 |
Pub. Date： |
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Publication Number： |
101130106 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
A61L 27/18, A61F 2/44 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Tuo Xinlin, Xia Weijuan, Wang Jing, Wang Xiaogong, Wu Jigong, Zou Dewei |
Key Words： |
producing method, artificial prosthesis, disci intervertebrales nucleus pulposus |
Abstract： |
The invention discloses a preparing method of artificial intervertebral disc nucleus pulposus prosthesis in the macromolecular technical domain, which comprises the following steps: preparing polyurethane bag material; blending the polymer dihydroxy alcohol and diisocyanate; stirring the composition protected by nitrogen to make the prepolymer; heating to add chain-expanding cross linker; stirring to react; maturing; moulding the polyurethane bag; preparing the silicon rubber filler through blending base gel, cross linker, filler and catalyst to stir evenly; injecting the silicon rubber filler into the polyurethane bag through injector. The invention doesn't harm human body with good biological compatibility and dynamic property, which has chemical inert to possess long-term mechanic strength. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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