Capacitance fluid volume measurement

Details Capacitance fluid volume measurement Capacitance fluid volume measurement

2006-09-19

2006-09-19

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

Immersible electrode type

C073S232000

Reexamination Certificate

active

07107837

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.

REFERENCES:
patent: 3375716 (1968-04-01), Hersch
patent: 3428828 (1969-02-01), Korzekwa et al.
patent: 3730183 (1973-05-01), Goldsmith et al.
patent: 3903478 (1975-09-01), Stuart et al.
patent: 4064550 (1977-12-01), Dias et al.
patent: 4126132 (1978-11-01), Portner et al.
patent: 4137168 (1979-01-01), Perrot
patent: 4142524 (1979-03-01), Jassawalla et al.
patent: 4240408 (1980-12-01), Schael
patent: 4530759 (1985-07-01), Schal
patent: 4586920 (1986-05-01), Peabody
patent: 4784576 (1988-11-01), Bloom et al.
patent: 4823552 (1989-04-01), Ezell et al.
patent: 4850805 (1989-07-01), Madsen et al.
patent: 4872813 (1989-10-01), Gorton et al.
patent: 5135485 (1992-08-01), Cohen et al.
patent: 5431626 (1995-07-01), Bryant et al.
patent: 5542919 (1996-08-01), Simon et al.
patent: 5563584 (1996-10-01), Rader et al.
patent: 5569190 (1996-10-01), D'Antonio
patent: 5609572 (1997-03-01), Lang
patent: 5628908 (1997-05-01), Kamen et al.
patent: 5634896 (1997-06-01), Bryant et al.
patent: 5635962 (1997-06-01), Goldis
patent: 5945831 (1999-08-01), Sargent et al.
patent: 6017194 (2000-01-01), North, Jr.
patent: 6017198 (2000-01-01), Traylor et al.
patent: 6122972 (2000-09-01), Crider
patent: 6207522 (2001-03-01), Hunt et al.
patent: 6210368 (2001-04-01), Rogers
patent: 6280408 (2001-08-01), Sipin
patent: 6426861 (2002-07-01), Munshi
patent: 6542350 (2003-04-01), Rogers
patent: 6562012 (2003-05-01), Brown et al.
patent: 6932786 (2005-08-01), Giacomelli et al.
patent: 2003/0036719 (2003-02-01), Giacomelli et al.
patent: 2017112 (1971-10-01), None
patent: 0 282 323 (1988-09-01), None
patent: WO 00/31553 (2000-06-01), None
patent: WO 00/44018 (2000-07-01), None

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