The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 1982
Filed:
Feb. 08, 1977
Menahem A Kraus, Rehovot, IL;
Moshe A Frommer, Rehovot, IL;
A. T. Ramot Plastics Ltd., Tel Aviv, IL;
Abstract
An artificial kidney comprises means for introducing a prepared solution into the peritoneal cavity to draw toxic metabolites therefrom into the fluid, the fluid exiting from the cavity as peritoneal fluid; and a dialysis or ultrafilter separator containing a selective membrane having a high permeability to low molecular weight toxic metabolites but a low permeability to high molecular weight protein. The peritoneal fluid is circulated through the separator on one side of the selective membrane in the above-described closed-loop peritoneal circuit, the fluid exiting from that side of the membrane being returned to the peritoneal cavity. The artificial kidney further includes a single-pass reconstitution circuit wherein tap water is introduced into the inlet of a hyperfilter impermeable to ions and to organic matter; and a concentrate including sugar and salts is introduced into the water exiting from the permeate outlet of the hyperfilter to form a water concentrate solution. The resulting water-concentrate solution is utilized for maintaining substantially constant the original concentration of sugar and salt in the peritoneal fluid as the waste metabolites, passing through the separator, are removed from the peritoneal fluid.