Method and apparatus for ultrafiltration measurement in a two pu

Details Method and apparatus for ultrafiltration measurement in a two pu Method and apparatus for ultrafiltration measurement in a two pu

1984-01-27

1986-06-24

Coven, Edward M.

Surgery

Blood drawn and replaced or treated and returned to body

Constituent removed from blood and remainder returned to body

128DIG13, A61M 103

Patent

active

045965501

ABSTRACT:
A blood flow system for processing blood has two phases of operation, an arterial phase and a venous phase. During the arterial phase, the system is filled with blood through operation of an arterial blood pump. When a predetermined blood pressure level in the system has been attained, the arterial blood pump is inactivated and a venous blood pump removes blood from the system for a given number of pump turns. By accurately monitoring both arterial and venous pumps operating cycles, ultrafiltration volume and rate may be determined.

REFERENCES:
patent: 3756234 (1973-09-01), Kopp
patent: 3830234 (1974-08-01), Kopp
patent: 3848592 (1974-11-01), Willock
patent: 3902490 (1975-09-01), Jacobsen et al.
patent: 3985134 (1976-10-01), Lissot et al.
patent: 4231366 (1980-11-01), Schael
patent: 4401431 (1983-08-01), Arp

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