I.V. alert system

Details I.V. alert system I.V. alert system

1989-08-30

1992-02-18

Apley, Richard J.

Surgery

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

Treating material introduced into or removed from body...

604251, 604 67, A61M 514

Patent

active

050889907

ABSTRACT:
An intravenous alert system that uses CMOS circuitry. An infrared transmitter and receiver detects drops as they fall through a drip chamber. Each passing drop retriggers a counter. If the counter is not retriggered after a certain set delay time an alarm signal is sent out. The device uses both audio and visual alarms. A special adjustable housing contains all of the electronic components of the alert system.

REFERENCES:
patent: 3802417 (1974-04-01), Lang
patent: 4280495 (1981-07-01), Lampert
patent: 4681563 (1987-07-01), Deckert et al.
patent: 4681569 (1987-07-01), Coble et al.
patent: 4827970 (1989-05-01), Sugisaki et al.
Schilling, Donald L, et al., Electronic Circuits, Discrete and Integrated, 2nd ed., McGraw-Hill, copyright 1979.
IEEE Standard Dictionary of Electrical and Electronic Terms, [copyright 1972], p. 412.

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