发明名称 |
Implantable infusion device. |
摘要 |
<p>An infusion device which permits transcutaneous access to an implanted catheter for use in introducing an external filament such as a optical fiber, external catheter, guide wire or rigid needle. In accordance with this invention the device includes a valve assembly (34) including a first valve element (36) defining an aperture (38) with a sealing member (40) which is normally to engage and seal against the aperture. The sealing element is made from a hard material such as a metal. Upon introduction of a rigid external introducer such as a needle, the needle directly contacts the sealing member plug (92) unsealing it from the valve element aperture which then closes against the external element. The device enables repeated access using a sharp introduced element such as a needle without it contacting soft sealing elements which could be degraded by such repeated access. <IMAGE></p> |
申请公布号 |
EP0551017(A1) |
申请公布日期 |
1993.07.14 |
申请号 |
EP19920311887 |
申请日期 |
1992.12.31 |
申请人 |
ENSMINGER, WILLIAM DARREL;ANDREW, JAMES CARROLL;KNOL, JAMES ALAN |
发明人 |
ENSMINGER, WILLIAM DARREL;KNOL, JAMES ALAN;ANDREWS, JAMES CARROLL;MASTROENI, JOHN CIUSEPPI |
分类号 |
A61M39/00;A61M25/00;A61M39/02;A61M39/06 |
主分类号 |
A61M39/00 |
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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