Electronic monitoring system for drainage device

Details Electronic monitoring system for drainage device Electronic monitoring system for drainage device

1990-03-30

1991-08-06

Green, Randall L.

Surgery

Means and methods for collecting body fluids or waste material

Aspiration collection container or trap

604 65, A61M 100, A61M 3100

Patent

active

050374079

ABSTRACT:
An electronic monitoring system for a drainage device is provided with a bubble detector which transmits a signal upon the passage of a bubble through a bubble chamber of a surgical drainage device. There is provided a timing device which may be preset for any desired period of time. The timing device is connected to an alarm or signalling device which is activated to indicate the absence of passage of a bubble through the bubble chamber during the preset time interval. Switching means is provided on the timing device to selectively activate the timer initially to a short time period of a relatively few minutes and later to a long time period of several hours. The short time period is activated initially when the drainage device is first connected to a patient so that an alarm will be sounded to indicate possible malfunction of the device indicated by the absence of a bubble during a relatively short time period. During the latter stages of recovery of the patient, the timer is set to a long time period so that the alarm or signal will be activated by the absence of a bubble during the long time period to indicate that the patient has healed sufficiently to permit the drainage device to be removed.

REFERENCES:
patent: 3390577 (1968-07-01), Phelps et al.
patent: 3736930 (1973-06-01), Georgi
patent: 4137913 (1979-02-01), Georgi
patent: 4299218 (1981-11-01), Knigge et al.
patent: 4504263 (1985-03-01), Steuer et al.
patent: 4532936 (1985-08-01), LeVeen
patent: 4617020 (1986-10-01), Kurtz
patent: 4710165 (1987-12-01), McNeil et al.

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