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. 15, 2014
Filed:
Nov. 02, 2009
Harold F. Sandford, Groton, MA (US);
Norma J. Ofsthun, Lexington, MA (US);
Amanda K. Stennett, Waltham, MA (US);
Jiunn Yeong Teo, Pleasant View, UT (US);
Cheryl Ford, Ogden, UT (US);
Benjamin J. Lipps, Boston, MA (US);
Harold F. Sandford, Groton, MA (US);
Norma J. Ofsthun, Lexington, MA (US);
Amanda K. Stennett, Waltham, MA (US);
Jiunn Yeong Teo, Pleasant View, UT (US);
Cheryl Ford, Ogden, UT (US);
Benjamin J. Lipps, Boston, MA (US);
Fresenius Medical Care Holdings, Inc., Waltham, MA (US);
Abstract
A portable peritoneal dialysis system for a patient includes an inlet port for providing inflow to the patient's peritoneal cavity, an outlet port for providing outflow from the patient's peritoneal cavity, and a volume of dialysate for flow into and out of the patient's peritoneal cavity, thereby removing from the dialysate uremic waste metabolites that have diffused into the dialysate. The portable peritoneal dialysis system also includes a closed liquid flow loop, including a pump, for flowing the dialysate into and out of the patient's peritoneal cavity, and an organic- and phosphate-removing stage, including at least one replaceable cartridge in the closed liquid flow loop, the cartridge containing material for removing organic compounds and phosphate from dialysate removed from the patient's peritoneal cavity. The portable peritoneal dialysis system further includes a urea- and ammonia-removing stage, including at least one replaceable cartridge in the closed liquid flow loop, the cartridge containing material for removing urea and ammonia from dialysate removed from the patient's peritoneal cavity, the material being packed around semi-permeable hollow fibers with interior fiber walls that reject cations, thereby retaining cations in the dialysate.