Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1996-04-10
1998-12-01
Stright, Ronald
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604123, 604 65, A61M 100
Patent
active
058430350
ABSTRACT:
The present invention provides an apparatus for detecting excessive air in a liquid flow-through tube. The apparatus includes an ultrasonic transmitter for transmitting ultrasonic signals and an ultrasonic receiver for receiving ultrasonic signals. The ultrasonic transmitter and ultrasonic receiver are separated by the IV tube. The apparatus further provides circuit means for generating at least two transmitting signals to actuate the ultrasonic transmitter and circuit means for detecting received signals. Means are provided for determining whether the received signal is indicative of air or liquid in the IV tube. The apparatus further relies on logarithmic detection of air in fluids rather than linear detection which provides a larger safety factor in prediction of air embolus.
REFERENCES:
patent: 3974681 (1976-08-01), Namery
patent: 4015464 (1977-04-01), Miller et al.
patent: 4418565 (1983-12-01), St. John
patent: 4487601 (1984-12-01), Lindemann
patent: 4673927 (1987-06-01), Cianciavicchia et al.
patent: 4731556 (1988-03-01), Adams
patent: 4763525 (1988-08-01), Cobb
patent: 4821558 (1989-04-01), Pastrone et al.
patent: 4857050 (1989-08-01), Lentz et al.
patent: 4911013 (1990-03-01), Karras et al.
patent: 4981467 (1991-01-01), Bobo, Jr. et al.
patent: 5053747 (1991-10-01), Slate et al.
patent: 5064412 (1991-11-01), Henke et al.
patent: 5102392 (1992-04-01), Sakai et al.
patent: 5102827 (1992-04-01), Smith
patent: 5123275 (1992-06-01), Daoud et al.
patent: 5176631 (1993-01-01), Koenig
patent: 5487827 (1996-01-01), Peterson et al.
Bowman George
Eyster Kurt
Matthews Joseph
Baxter International Inc.
Mehta Bhisma
Schaatsma P. E.
Stright Ronald
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