A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/91
A61M 1/00 (2006.01) A61M 5/142 (2006.01) A61M 5/168 (2006.01)
Patent
CA 1329745
ABSTRACT OF THE DISCLOSURE A medical pumping system has a supply tube (2), an outlet tube (6), a readily sterilizable, disposable cassette (3) connected to the tubes and engaged with the pump, and means (22,24) such as a motor-driven piston, for intermittently applying pressure to the cassette. The pumping system features a display and switch means (9, 10) on a front panel thereof, a pressure sensor (28), an optical fluid presence sensor (19), and a microprocessor (20) metering the volume of fluid pumped through said cassette (3), monitoring output signals from said sensors (18, 28), controlling the motor-driven piston in accordance with settings entered via said which means (9,10), and directing output data to said display means (8). The microprocessor has a stored program for performing SET RATE, RUN, HOLD, VOLUME FED, and CLEAR VOLUME functions. The cassette includes a hydraulically self-actuating inlet valve (44) communicating with the supply tube (2), a hydraulically self-actuating outlet check valve (42) communicating with, and preventing backflow from, the outlet tube (6), a hollow, resilient compressible member, such a bellows (34) having an interior communicating with the inlet and outlet valves, and a support structure (30,36,38) securing together the tubes, valves and bellows in operating relation. Preferably, the inlet and outlet valves are a unitary element. A readily sterilizable, disposable cassette (3) can be used in a medical pumping system having a supply tube (2), an outlet tube (6) and means (22,24), such as a motor-driven piston, for intermittently applying pressure to the cassette. The cassette features a hydraulically self-actuating inlet valve (44) communicating with the supply tube (2), a hydraulically self-actuating outlet check valve (42) communicating with, and preventing backflow from, the outlet tube (6), a hollow, resilient compressible member, such as a bellows (34), having an interior communicating with the inlet and outlet valves, and a support structure (30,36,38) securing together the tubes, valves and bellows in operating relation. Preferably, the inlet and outlet valves are a unitary element. An optical sensing system detects fluid exhaustion in the cassette. The cassette has an irregularly- shaped cap (38) which prevents incorrect insertion into a pump.
569698
Frantz Mark G.
Honard Mark R.
Pavsek Thomas J.
Sears Lawrence M.
Shen Ying
Frantz Medical Development Ltd.
Perley-Robertson Hill & Mcdougall Llp
LandOfFree
Disposable cassette for fluid delivery pump systems, pump... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disposable cassette for fluid delivery pump systems, pump..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disposable cassette for fluid delivery pump systems, pump... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1228228