发明名称 |
VOLUMETRIC PUMP WITH STERILITY SEAL |
摘要 |
A volumetric pump for administering intravenous fluids to a patient comprises a first housing having an elongate cavity therein with an open and a closed end. A resilient sheet of material having a centrally-located aperture covers the open end, and a pump shaft is slidably disposed through the aperture to form a sphincter seal therebetween. An inlet conduit leading from a fluid source (an IV bag) passes through the housing into the cavity near the open end thereof, and an outlet conduit leading to a fluid sink (the patient) passes through the housing from the cavity near the closed end thereof. A drive shaft is attached to the pump shaft to drive it back and forth in reciprocating motion inwardly and outwardly of the cavity to produce, respectively, a positive pressure forcing fluid out of the outlet conduit to the fluid sink, and a negative pressure forcing fluid from the fluid source through the inlet conduit. A second housing encloses the first housing and pump shaft, and includes a seal formed about the drive shaft to seal the inside of the second housing from the outside. |
申请公布号 |
WO9852624(A2) |
申请公布日期 |
1998.11.26 |
申请号 |
WO1998US10419 |
申请日期 |
1998.05.21 |
申请人 |
SARCOS, INC. |
发明人 |
JACOBSEN, STEPHEN, C.;DAVIS, CLARK, C. |
分类号 |
F04B17/04;A61M5/142;F04B3/00;F04B7/00;F04B9/02;F04B9/04;F04B17/00;F04B17/03;F04B49/12;F04B53/02;F04B53/16;F16J15/32;F16K41/12;H01F7/02 |
主分类号 |
F04B17/04 |
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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