09494151 is referenced by 2 patents and cites 185 patents.

The present invention involves, in some embodiments, fluid handling systems and methods for pumping fluid to and from a patient. The system and methods in certain embodiments involve a pumping cartridge and a reusable component configured to mate with the pumping cartridge comprising. The reusable component may comprise a control chamber and a pressure transducer configured to measure a gas pressure associated with the control chamber, and may further include a processor configured to supply the control chamber with a gas at a predetermined pressure, open the pump chamber to the surroundings, monitor the gas pressure associated with the control chamber using the pressure transducer over a predetermined period of time, and determine if the change in gas pressure exceeds a predetermined limit.

Title
System, method, and apparatus for utilizing a pumping cassette
Application Number
14/294116
Publication Number
9494151 (B2)
Application Date
June 2, 2014
Publication Date
November 15, 2016
Inventor
Geoffrey P Spencer
Manchester
NH, US
Robert J Bryant Jr
Manchester
NH, US
Larry B Gray
Merrimack
NH, US
Agent
Wolf Greenfield & Sacks P C
Assignee
DEKA Products Partnership
NH, US
IPC
A61M 39/22
A61M 5/145
F04B 53/16
F04B 53/10
F04B 49/12
F04B 45/02
F04B 43/02
A61M 1/26
A61M 5/14
G05D 16/20
G01M 3/32
A61M 5/172
A61M 1/36
G01M 3/26
F04B 45/00
F04B 49/06
F04B 43/067
A61M 5/142
F04B 45/06
A61M 1/16
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