发明名称 |
Apparatus for taking blood samples from a living patient |
摘要 |
A sampling apparatus is provided comprising a pump having duplex independently valved first and second inlets and a common discharge outlet, the first inlet being adapted to be connected to the vascular system of a patient via an indwelling catheter or like semi-permanent connection while the second inlet is adapted for connection to a source of normal saline. A series of collector vessels is provided for receiving fluid discharging from the pump discharge outlet. The apparatus is operated in accordance with a preselected program whereby at prescribed intervals the pump is caused to withdraw a blood sample of chosen volume through the first inlet and to discharge it to a collector vessel and thereafter to draw saline from the second inlet to flush the pump while discharging the flushings to a separate collector vessel. Preferably, the collector vessels are disposed in a rotary indexing carrier adapted to bring each collector vessel in turn into position under the pump discharge outlet.
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申请公布号 |
US4077395(A) |
申请公布日期 |
1978.03.07 |
申请号 |
US19760731569 |
申请日期 |
1976.10.12 |
申请人 |
ST. THOMAS"S HOSPITAL MEDICAL SCHOOL |
发明人 |
WOOLNER, RONALD ALFRED |
分类号 |
A61B5/155;(IPC1-7):A61B5/00 |
主分类号 |
A61B5/155 |
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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