Surgery – Blood drawn and replaced or treated and returned to body – Constituent removed from blood and remainder returned to body
Patent
1995-01-17
1998-03-24
Weiss, John G.
Surgery
Blood drawn and replaced or treated and returned to body
Constituent removed from blood and remainder returned to body
604 4, 2103218, A61M 500, B01D 6302
Patent
active
057307121
ABSTRACT:
Dialyzers and methods are disclosed for performing shortened extracorporeal blood treatments. A flow restriction is provided in a dialyzer serving to partially impede flow of dialysate through the dialysate compartment of the dialyzer. As a result, the pressure of the dialysate upstream of the flow restriction is sufficient to cause the pressure profile of the dialysate from the dialysate inlet to the dialysate outlet of the dialyzer to be non-linear, in contrast to prior-art dialyzers. This perturbation of the dialysate pressure profile permits a single dialyzer to be used to remove large amounts of blood water from a patient's blood and re-infuse large amounts of liquid to the blood while still attaining a desired net ultrafiltration of the patient without the need for more than one dialyzer per treatment or for a separate replacement fluid.
REFERENCES:
patent: 3782382 (1974-01-01), Nattulin et al.
patent: 4568327 (1986-02-01), Seafert
patent: 4690245 (1987-09-01), Gregovich et al.
patent: 4861485 (1989-08-01), Fecondini
patent: 4886086 (1989-12-01), Etchells et al.
patent: 5008012 (1991-04-01), Hagihara et al.
patent: 5020943 (1991-06-01), Filipelli
patent: 5092836 (1992-03-01), Polaschegg
patent: 5254249 (1993-10-01), Terada et al.
Anderson William W.
Falkvall Thore
Kelly Thomas D.
Althin Medical, Inc.
Cho David J.
Weiss John G.
LandOfFree
Extracorporeal blood treatment apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Extracorporeal blood treatment apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extracorporeal blood treatment apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2285111