Peritoneal dialysis systems and methods employing a liquid distribution and pump cassette with self-contained air isolation and removal
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United States of America Patent
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May 13, 1997
Issued Date -
N/A
app pub date -
Mar 9, 1995
filing date -
Mar 3, 1993
priority date (Note) -
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Abstract
Systems and methods for peritoneal dialysis establish flow communication between a patient's peritoneal cavity and a drain through a pump chamber having generally vertically spaced upper and lower regions andt a diaphragm. The systems and methods operate the pump chamber, with the upper and lower regions oriented generally vertically, by applying fluid pressure to the diaphragm. The systems and methods direct liquid to the patient's peritoneal cavity only from the lower region of the pump chamber. In this way, the improved systems and methods collect air in the upper region of the vertically oriented pump chamber, while isolating the patient's peritoneal cavity from air in the pump chamber.
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Family
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