Drop detection housing with positive tactile signaling

Details Drop detection housing with positive tactile signaling Drop detection housing with positive tactile signaling

1988-08-09

1991-01-22

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

A61M 500

Patent

active

049868217

ABSTRACT:
A system is provided for the automatic, self-checking switching of a medical infusion controller among a plurality of modes of operation. A medical infusion controller has a plurality of pressure-sensitive switches, each of which corresponds to a different mode of operation. A drip chamber is provided with nub elements in one of a variety of possible configurations, each of which correspond to one of the pressure-sensitive switches on the controller. When the drip chamber is placed in the controller, the nub configuration activates the corresponding switch. If the controller detects an incorrect number of nubs, it delivers an error message.

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Das Bedienteil und die Uhr des Grundig-Videorecords Video 2.times.4 super, F. Meierhofer, Grundig Technische Informationen 3-81, pp. 119-128.

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