Pumps – Processes
Patent
1983-10-18
1984-10-02
Smith, Leonard E.
Pumps
Processes
128DIG3, 128DIG12, 417320, 417572, 604 4, 604141, A61M 103
Patent
active
044745389
ABSTRACT:
The present invention relates to a method of circulating organo-biological liquids, preferably blood, wherein a liquid contained in a reservoir is released to a pressure (head) level below its original fluid pressure (head) level, thereafter raised periodically or in steps to a pressure (head) level above the original level, then transferred from such level to a reservoir positioned at a predetermined, relatively lower pressure (head) level, and thereupon drained to an outlet positioned approximately at the level of the original pressure (head) level.
REFERENCES:
patent: 2291912 (1942-08-01), Meyers
patent: 3017885 (1962-01-01), Robicsek
patent: 3684405 (1972-08-01), Wright et al.
patent: 3811800 (1974-05-01), Shill
patent: 3892236 (1975-01-01), Djerassi
patent: 3955557 (1976-05-01), Takagi
patent: 4250872 (1981-02-01), Tamari
Boretos, J. W. et al., Segmented Polyurethane: A Polyether Polymer, J. Biomed. Mater. Res., vol. 2, pp. 121-130 (1968), 128-DIG. 3.
Mustard, W. T. et al., Further Observations on Experimental Extracorporeal Circulation, Surgery, vol. 32, No. 5, pp. 803-810, Nov. 1952, 128-DIG. 3.
Mottaghy Khosrow
Myrenne Heinz
Schmid-Schonbein Holger
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