Measuring and testing – With fluid pressure – Dimension – shape – or size
Patent
1994-10-20
1996-08-13
Noland, Thomas P.
Measuring and testing
With fluid pressure
Dimension, shape, or size
73 5407, 604111, G01M 1900, B01L 302
Patent
active
055445195
ABSTRACT:
In a method for measuring the flow resistance of a catheter in an implanted medication infusion system, the system having a medication reservoir and a pump that conveys the medication from the reservoir into the patient through a catheter connected to the discharge of the pump via a one-way valve, and having a rinsing input for direct access to the catheter disposed upstream of the catheter and downstream of the pump, the time required in order to pump a pre-determined liquid volume through the catheter via the rinsing input at a predetermined pressure is measured. In a device for such a flow check, a testing device is provided for connection to the rinsing input, which pumps a predetermined liquid volume through the catheter via the rinsing input at a predetermined pressure. Measuring sensors are provided for supplying signals from which the time required for pumping this liquid volume can be determined.
REFERENCES:
patent: 3945254 (1976-03-01), Rebold
patent: 3954014 (1976-05-01), Andrews, Jr. et al.
patent: 4196730 (1980-04-01), Wilson
patent: 4383531 (1983-05-01), Panagiotopulos
patent: 4710177 (1987-12-01), Smith et al.
patent: 4721123 (1988-01-01), Cosentino et al.
patent: 4741736 (1988-05-01), Brown
patent: 5024668 (1991-06-01), Peters et al.
patent: 5092161 (1992-05-01), Jenkins et al.
patent: 5135488 (1992-08-01), Foote et al.
patent: 5192272 (1993-03-01), Faure
patent: 5201753 (1993-04-01), Lampropoulos et al.
patent: 5279147 (1994-01-01), Bertini et al.
patent: 5300027 (1994-04-01), Foote et al.
patent: 5425713 (1995-06-01), Taylor et al.
patent: 5431629 (1995-07-01), Lampropoulos et al.
"Pompes Implantables A Insuline: Interet d'un 'port d'acces lateral' pour le diagnostic et le traitement des obstructions di catheter," Selam, Infusystemes, vol. 6, pp. 30-32 (1989).
Hammarberg Bjoern
Rosen Jan
Slettenmark Bruno
Noland Thomas P.
Politzer Jay L.
Siemens Elema AB
LandOfFree
Method and apparatus for measuring the flow resistance of a cath does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for measuring the flow resistance of a cath, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring the flow resistance of a cath will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1040491