发明名称 |
Metal coating of controlled porosity and thickness - applied to metal substrate, esp. for use as human heart valve prosthesis |
摘要 |
<p>The substrate is coated with adhesive on those zones where coating is required, and metal powder is deposited on the adhesive. This is followed by sintering to bond metals and burn off the adhesive, leaving interconnected voids round metal particles. The adhesive is pref. applied by a brush followed by the metal powder, the surplus powder being blown off by a gas so only a single layer of particles is formed. Used esp. for a human heart valve prosthesis, where body tissue can grow into the interconnecting pores. This reduces the possibility of thrombosis occurring in the year after implantation of the prosthesis.</p> |
申请公布号 |
DE2534113(A1) |
申请公布日期 |
1977.02.17 |
申请号 |
DE19752534113 |
申请日期 |
1975.07.30 |
申请人 |
AMERICAN HOSPITAL SUPPLY CORP. |
发明人 |
RAFFIE KAFESJIAN,RALPH;GERARD MASSE,NORMAN;PAUL KELLER,DAVID |
分类号 |
A61F2/00;A61F2/30;B22F7/00;(IPC1-7):B22F7/04;B05D7/14;C23C17/00;A61F1/00 |
主分类号 |
A61F2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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