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:
Jun. 24, 2003
Filed:
Feb. 19, 1998
Applicant:
Inventors:
Jeffrey H Burbank, Boxford, MA (US);
C David Finch, Clinton, MS (US);
James M Brugger, Newburyport, MA (US);
Assignee:
NStage Medical, Inc., Lawrence, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 3/700 ; A61M 1/14 ; C02F 1/44 ; B01D 6/100 ;
U.S. Cl.
CPC ...
A61M 3/700 ; A61M 1/14 ; C02F 1/44 ; B01D 6/100 ;
Abstract
A hemofiltration system is provided in which ultrafiltrate is purified by reverse osmosis for reinfusion. Non-sterile infusate concentrate is dialyzed into the purified ultrafiltrate and combined with cleared blood which is returned to the patient. In another system, a hemofilter is used to sterilize essentially pure, non-sterile water for dilution of sterile infusate concentrate, then the hemofilter is used to filter blood, the infusate concentrate being combined with cleared blood for return to the patient.