Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1987-07-31
1990-03-13
Pellegrino, Stephen C.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604154, 128DIG1, 128DIG12, A61M 514
Patent
active
049080172
ABSTRACT:
Failsafe apparatus and method are disclosed for controlling fluid flow from syringes. One or more syringes are positioned so that the piston of each syringe is caused to be precisely displaced to thereby safely deliver medicament from the syringe to a patient. To effect movement of each piston, a rack is provided, either as a part of the piston or secured thereto, and longitudinal movement of each rack is effected by rotating an associated pinion gear that is connected with a pulse-driven, stepper motor utilized in a power-efficient electromechanical configuration, with the operation of the stepper motor being accomplished through dual-redundant state machines controlled by a pre-programmed memory unit, and with the apparatus being repeatedly subjected to a plurality of error checks and data integrity verifications to assure continued proper operation.
REFERENCES:
patent: 2764980 (1956-10-01), Smith
patent: 3395704 (1968-08-01), Frey et al.
patent: 4137913 (1979-02-01), Georgi
patent: 4255096 (1981-03-01), Coker, Jr. et al.
patent: 4342311 (1982-08-01), Whitney et al.
patent: 4417889 (1983-11-01), Choi
patent: 4435173 (1984-03-01), Siposs et al.
patent: 4529401 (1985-07-01), Leslie et al.
patent: 4563175 (1986-01-01), LaFond
patent: 4627835 (1986-12-01), Fenton, Jr.
patent: 4652260 (1987-03-01), Fenton, Jr. et al.
patent: 4676776 (1987-06-01), Howson
patent: 4828545 (1989-05-01), Epstein et al.
patent: 4838856 (1989-06-01), Mulreany
NASA Technical Briefs, vol. 8, No. 4, MFS-25119, Summer 1984.
"Microcomputers in Safety Technique" by H. Holscher and J. Rader (Germany 1986).
Altobellis Richard M.
Fellinger Michael W.
Howson David C.
Oshetski Walter E.
Popken John A.
Ivion Corporation
Lewis Ralph
Pellegrino Stephen C.
LandOfFree
Failsafe apparatus and method for effecting syringe drive does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Failsafe apparatus and method for effecting syringe drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Failsafe apparatus and method for effecting syringe drive will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-48647