A peritoneal dialysis system includes a disposable cassette including a flexible sheet; a hardware unit including (i) at least one pump actuator and piston head moved by the pump actuator, (ii) at least one valve actuator, (iii) at least one sensor, and (iv) a disposable cassette interface for interfacing with the disposable cassette, the disposable cassette interface including: (a) at least one pump aperture, the at least one piston head moveable out of and retractable into the at least one pump aperture to move a corresponding pumping portion of the flexible sheet of the disposable cassette, the piston head moving within a vacuum chamber, the vacuum chamber enabling a vacuum to be pulled around the piston head to the flexible sheet of the disposable cassette; (b) at least one valve aperture, at least a portion of the at least one valve actuator located in the valve aperture to move a valve portion of the flexible sheet of the disposable cassette; and (c) at least one sensor aperture, the at least one sensor located in the at least one sensor aperture, the at least one sensor operable with a sensor portion of the flexible sheet of the disposable cassette.

Title
Dialysis system and method for cassette-based pumping and valving
Application Number
12/987738
Publication Number
20110106003
Application Date
January 10, 2011
Publication Date
May 5, 2011
Inventor
Alex Yu
Safety Harbor
FL, US
Tahua Yang
Woodridge
IL, US
David Vescovi
Pinellas Park
FL, US
Sherwin Shang
Vernon Hiils
IL, US
Brian Lauman
Clearwater
FL, US
Benjamin Kellam
Clearwater
FL, US
Jeffrey W Jerrell
Clearwater
FL, US
David Howard
Gulfport
FL, US
Andrew D Hopping
Largo
FL, US
Paul Grippo
Palm Harbor
FL, US
Joseph H Bowman JR
Lake Villa
IL, US
John Booras
Wildwood
IL, US
Richard Avoy
Palm Harbor
FL, US
Robert W Childers
New Port Richey
FL, US
Assignee
Baxter Healthcare
Baxter International
IL, US
IPC
A61M 01/28
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