04923598 is referenced by 128 patents and cites 11 patents.

The apparatus for hemodialysis and hemofiltration comprises an extracorporeal blood circuit comprising a dialyzer and/or filter arrangement. For determining the fluid withdrawal per unit time and the total amount of fluid withdrawn flow sensors in conjunction with an evaluating unit are inserted into the blood circuit upstream and downstream of the dialyzer or filter arrangement. The flow measurement is by the ultrasonic Doppler principle and for obtaining high accuracy the sensors comprise measuring inserts belonging to the blood tubing system and having special means for defined coupling-in and coupling-out and precise conduction of the ultrasonic waves. Apart from the measurement, means are provided for regulating the net fluid withdrawal.

Title
Apparatus for the treatment of blood in particular for hemodialysis and hemofiltration
Application Number
7/209678
Publication Number
4923598
Application Date
June 21, 1988
Publication Date
May 8, 1990
Inventor
Wilfried Schal
Bad Homburg
DE
Agent
Townsend and Townsend
Assignee
Fresenius
DE
IPC
B01D 35/00
B01D 13/00
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