Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1994-04-01
1995-06-13
Hirsch, Paul J.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
128DIG12, 604 67, A61M 5145
Patent
active
054237599
ABSTRACT:
A valve system to control administration of fluids from an infusion pump to a patient when the height of the pump relative to the patient is varied. The system comprises a valve which pinches closed the flexible disposable tube that communicates between the pump and the patient unless a minimum pressure is attained in the pump's fluid reservoir. Once the minimum pressure is reached the valve stays open until the pressure in the reservoir drops below a predetermined value which is lower than the minimum "open" pressure. The pressure of the fluid is measured by a sensor pressed against the outside of the reservoir and the valve closes the tube only by externally forcing one external wall against the opposite wall and does not contact the fluid. A method is disclosed for controlling fluid flow of fluids by mechanically closing the tube between the infusion pump and the patient unless a certain minimum pressure is attained in the fluid reservoir and closing the tube again only when the pressure in the reservoir drops to below a certain lower value.
REFERENCES:
patent: 2761445 (1956-09-01), Cherkin
patent: 3739943 (1973-06-01), Wilhelmson et al.
patent: 3895741 (1975-07-01), Nugent
patent: 4033479 (1977-07-01), Fletcher et al.
patent: 4155362 (1979-05-01), Jess
patent: 4278085 (1981-07-01), Shim
patent: 4337769 (1982-07-01), Olson
patent: 4346705 (1982-08-01), Pekkarinen et al.
patent: 4504200 (1985-03-01), Olson
patent: 4505701 (1985-03-01), Navato
patent: 4613327 (1986-09-01), Tegrarian
patent: 4626243 (1986-12-01), Singh et al.
patent: 4650462 (1987-03-01), DeSatnick et al.
patent: 4650469 (1987-03-01), Berg et al.
patent: 4718576 (1988-01-01), Tamura et al.
patent: 4919649 (1990-04-01), Timothy et al.
patent: 5000739 (1991-03-01), Kuliax et al.
patent: 5078682 (1992-01-01), Miki et al.
patent: 5127908 (1992-07-01), Walker et al.
patent: 5167633 (1992-12-01), Mann et al.
patent: 5201711 (1993-04-01), Pasqualucci et al.
patent: 5207645 (1993-05-01), Ross et al.
patent: 5232439 (1993-08-01), Campbell et al.
patent: 5308335 (1994-05-01), Ross et al.
patent: 5318540 (1994-06-01), Athaxde et al.
patent: 5342313 (1994-08-01), Campbell et al.
patent: 5348539 (1994-09-01), Herskowitz
Hirsch Paul J.
Infusion Technologies Corporation
LandOfFree
Valve system and method for control of an infusion 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 Valve system and method for control of an infusion pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve system and method for control of an infusion pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1306111