Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1990-04-16
1992-03-17
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
604151, G01D 534
Patent
active
050971220
ABSTRACT:
An optical motion sensor is provided for monitoring movement of a mechanical device, particularly such as an infusion pump of the type used for controlled delivery of medication to a patient. The motion sensor includes a disk member mounted upon a selected mechanical output component driven by the infusion pump, such that the disk member undergoes displacement during normal pump operation. The disk member defines a pattern of reflective and substantially nonreflective surface zones which are alternately illuminated by a light source during normal pump operation. A light detector responds to the level of reflection from the disk member to provide an output signal which varies according to disk member displacement. This output signal is connected to a controller for comparison with drive signals supplied to the infusion pump, to verify proper mechanical output operation of the pump.
REFERENCES:
patent: 4641027 (1987-02-01), Renner et al.
patent: 4667098 (1987-05-01), Everett
patent: 4725723 (1988-02-01), Shimojima
Colman Fredric C.
Purvis Richard E.
Allen S.
Lowry Stuart O.
Miller Leslie S.
Nelms David C.
Pacesetter Infusion, Ltd.
LandOfFree
Medication infusion system having optical motion sensor to detec does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Medication infusion system having optical motion sensor to detec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Medication infusion system having optical motion sensor to detec will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1477700