Peritoneal dialysis machine

Details Peritoneal dialysis machine Peritoneal dialysis machine

2009-07-21

2011-12-06

Deak, Leslie (Department: 3761)

Surgery

Devices transferring fluids from within one area of body to...

With flow control means

C604S029000, C604S030000, C604S031000

Reexamination Certificate

active

08070709

ABSTRACT:
A peritoneal dialysis machine including: a housing; a mechanically actuated piston head extending from a pump actuator housed by the housing, the mechanically actuated piston head positioned to extend towards and away from a fluid pumping cassette, the fluid pumping cassette coupled operably to the housing such that a flexible membrane of the fluid pumping cassette faces the piston head; a pressure sensor positioned by the housing adjacent to the mechanically actuated piston head so as to sense a pressure of a medical fluid moved by the mechanically actuated piston head within the fluid pumping cassette; and a vacuum chamber formed about the mechanically actuated piston head, the vacuum chamber holding a vacuum that sucks the flexible membrane of the fluid pumping cassette onto the mechanically actuated piston head as the mechanically actuated piston head extends away from the fluid pumping cassette.

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