发明名称 |
Apparatus and method for extrusion of thin-walled tubes |
摘要 |
The present invention provides an apparatus and method for manufacturing polymeric thin-walled tubular members, which are well-suited for use as vascular grafts. The apparatus of the present invention enables extrusion of a tubular member having an extremely thin wall thickness so as to facilitate passage through tortuous vascular passageways. The apparatus achieves uniform wall thickness in a tubular member by establishing and maintaining axial alignment of a ram having a concentrically disposed guide rod therein with a die supported in concentric relation to the guide rod.
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申请公布号 |
US7425291(B2) |
申请公布日期 |
2008.09.16 |
申请号 |
US20040946875 |
申请日期 |
2004.09.22 |
申请人 |
SCIMED LIFE SYSTEMS, INC. |
发明人 |
VENDITTI JAMES;WOLEK HOWARD;WONG ALICE;SOGARD DAVID J.;HILL JASON P.;GIRTON TIMOTHY S.;BRODEUR CHRISTOPHER B. |
分类号 |
B29C47/00;B29C47/20;B29C45/53;B29C47/54;B29C53/00;B29L23/00 |
主分类号 |
B29C47/00 |
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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