Ultrasonic air-in-line detector for detecting entrained air in a

Details Ultrasonic air-in-line detector for detecting entrained air in a Ultrasonic air-in-line detector for detecting entrained air in a

1990-04-16

1993-01-05

Cohen, Lee S.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 67, 128DIG13, A61M 3100

Patent

active

051766310

ABSTRACT:
An ultrasonic air-in-line detection system for use in detecting entrained air bubbles in the fluid line of a disposable cassette mounted on a main pump unit is disclosed which can accurately detect entrained air bubbles in any type of fluid, whether clear or opaque. The system uses multiple windowing and air volume number weighting to determine when a threshold count of entrained air in a predetermined number of windows of material pumped occurs, with the alarm being sounded only when this threshold count of air bubbles is present in the multiple window volume. The system of the present invention thus will detect entrained air while avoiding so-called nuisance alarms.

REFERENCES:
patent: 3622958 (1971-11-01), Tucker et al.
patent: 3640271 (1972-02-01), Horton
patent: 3881353 (1975-05-01), Fathauer
patent: 3921622 (1975-11-01), Cole
patent: 3974681 (1976-08-01), Namery
patent: 3974683 (1976-08-01), Martin
patent: 4068521 (1978-01-01), Cosentino et al.
patent: 4083225 (1978-04-01), Day et al.
patent: 4112735 (1978-09-01), McKnight
patent: 4112773 (1978-09-01), Abts
patent: 4127114 (1978-11-01), Bretscher
patent: 4138879 (1979-02-01), Liebermann
patent: 4142414 (1979-03-01), Cosentino
patent: 4208906 (1980-06-01), Roberts, Jr.
patent: 4235095 (1980-11-01), Liebermann
patent: 4237720 (1980-12-01), Abts
patent: 4290432 (1981-09-01), Daniels
patent: 4319580 (1982-03-01), Colley et al.
patent: 4339944 (1982-07-01), Abts et al.
patent: 4354500 (1982-10-01), Colley et al.
patent: 4354501 (1982-10-01), Colley et al.
patent: 4354502 (1982-10-01), Colley et al.
patent: 4403510 (1983-09-01), de Walle et al.
patent: 4418565 (1983-12-01), St. John
patent: 4447191 (1984-05-01), Bilstad et al.
patent: 4448207 (1984-05-01), Parrish
patent: 4474184 (1984-10-01), Harui
patent: 4487601 (1984-12-01), Lindemann
patent: 4501531 (1985-02-01), Bilstad et al.
patent: 4528853 (1985-07-01), Lerch et al.
patent: 4530077 (1985-07-01), Dorr
patent: 4555951 (1985-12-01), Gutterman
patent: 4567749 (1986-02-01), Amblard et al.
patent: 4610164 (1986-09-01), Sobue et al.
patent: 4668945 (1987-05-01), Aldrovandi et al.
patent: 4673927 (1987-06-01), Cianciavicchia et al.
patent: 4689986 (1987-09-01), Carson et al.
patent: 4696191 (1987-09-01), Claytor et al.
patent: 4722224 (1988-02-01), Scheller et al.
patent: 4730493 (1988-03-01), Lebaud et al.
patent: 4758228 (1988-07-01), Williams
patent: 4763525 (1988-08-01), Cobb
patent: 4764166 (1988-08-01), Spani
patent: 4821558 (1989-04-01), Pastrone et al.

Affiliated with

Also associated with

Rating

Ultrasonic air-in-line detector for detecting entrained air in a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultrasonic air-in-line detector for detecting entrained air in a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic air-in-line detector for detecting entrained air in a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2388430