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:
Apr. 05, 1977
Filed:
Mar. 24, 1975
Gerhard Riede, Eslov, SW;
Gunnar Boberg, Lund, SW;
Gambro AG, Baar, CH;
Abstract
A device for diffusing substances between two fluids via semi-permeable diaphragms for dialysis apparatus in general and in particular as so-called artificial kidneys. The diaphragms are disposed in pairs between spacer plates and each plate includes an arrangement of flow-through ducts for the respective fluid connected to inlets and outlets respectively. A first fluid is arranged to be ducted between the diaphragms of each pair and a second fluid is arranged to be ducted outside the diaphragms, the diaphragms forming between them a network of ducts for the first fluid. In order to make it possible to prevent such duct networks having a well defined thickness and volume, the diaphragms are joined together by gluing, heat sealing, or the like within a pattern of spots, lines and/or small areas.