发明名称 |
Method and apparatus for protecting a pump mechanism from extraneous fluid |
摘要 |
A plurality of finger members disposed adjacent each other are moved by a driving mechanism in a reciprocal, sequential manner. Infusion is carried out when the finger members engage an infusion tube in a peristaltic sequence. The finger members contact each other by projections formed integrally on the upper and lower surfaces of the finger members to reduce the contact surface area. A fluid diversion guiding hole is contained in a tube-pressing portion of each finger member. The guide holes of adjacent finger members are aligned to form a continuous channel for discharging leaking infusion fluid. Bevels surround the guiding holes and are inclined toward the center of the hole. Each finger member also includes a rib that is integral with and protrudes upward from the upper surface of the finger member for blocking infusion fluid from the finger members and drive mechanism. In a preferred embodiment, the projections are linear and substantially parallel with the sides of the guiding hole which are, in turn, parallel with the movement of the tube-pressing portion.
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申请公布号 |
US5938413(A) |
申请公布日期 |
1999.08.17 |
申请号 |
US19970872842 |
申请日期 |
1997.06.11 |
申请人 |
ALARIS MEDICAL SYSTEMS, INC. |
发明人 |
MAKINO, HIDEO;KATAYAMA, KENJI;TAKEDA, YOSHITAKA |
分类号 |
F04B43/12;A61M1/10;A61M5/00;A61M5/142;F04B43/08;(IPC1-7):F04B43/12 |
主分类号 |
F04B43/12 |
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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