Surgery – Truss – Perineal
Patent
1976-10-12
1978-03-07
Yasko, John D.
Surgery
Truss
Perineal
128DIG5, 141130, A61B 500
Patent
active
040773957
ABSTRACT:
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.
REFERENCES:
patent: 3616789 (1971-11-01), Grabhorn
patent: 3626929 (1971-12-01), Sanz et al.
patent: 3674011 (1972-07-01), Michel et al.
patent: 3765402 (1973-10-01), Grabhorn
Jeffery Donald D.
St. Thomas's Hospital Medical School
Yasko John D.
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