发明名称 |
IMPLANTABLE INFUSION DEVICE |
摘要 |
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 including a first valve element defining an aperture with a sealing member which is normally to engage and sea} 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 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.
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申请公布号 |
CA2086484(A1) |
申请公布日期 |
1993.07.11 |
申请号 |
CA19922086484 |
申请日期 |
1992.12.30 |
申请人 |
ENSMINGER, WILLIAM D.;ANDREWS, JAMES C.;KNOL, JAMES A. |
发明人 |
ENSMINGER, WILLIAM D.;ANDREWS, JAMES C.;KNOL, JAMES A.;MASTROENI, JOHN J. |
分类号 |
A61M39/00;A61M25/00;A61M39/02;A61M39/06;(IPC1-7):A61M39/02 |
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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