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:
Sep. 19, 2006
Filed:
Jan. 22, 2002
Brian Lauman, Clearwater, FL (US);
Pete Hopping, Lutz, FL (US);
Rick Kienman, Tampa, FL (US);
Shahid Din, Palm Harbor, FL (US);
Robert W. Childers, New Port Richey, FL (US);
Brian Lauman, Clearwater, FL (US);
Pete Hopping, Lutz, FL (US);
Rick Kienman, Tampa, FL (US);
Shahid Din, Palm Harbor, FL (US);
Robert W. Childers, New Port Richey, FL (US);
Baxter International Inc., Deerfield, IL (US);
Baxter Healthcare S.A., Wallisellen, CH;
Abstract
A fluid volumetric pumping system has a fluid pump and capacitor plates disposed around a pump chamber of the fluid pump. The capacitance between the capacitor plates changes as the volume of fluid in the pump chamber changes. An electrical circuit measures a change in the capacitance between the plates and outputs a signal indicative of the volume of fluid in the pump chamber. The pump having the capacitance sensor of the present invention fluidly connects to a patient. In an embodiment, a peritoneal dialysis system provides dialysate to the patient via the pump, and the capacitance sensor measures the volume of dialysate supplied to and drained from a peritoneal cavity of the patient.