Pressure sensing device with test circuit

Details Pressure sensing device with test circuit Pressure sensing device with test circuit

2005-06-17

2008-11-18

Douglas, Steven O (Department: 3771)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

Reexamination Certificate

active

07451762

ABSTRACT:
A pressure sensing device for coupling to a cannula and receiving respiratory breathing information from a patient to be monitored. The pressure sensing device comprising an exterior housing accommodating a snore detection circuit which processes information and outputs a signal indicative; an airflow detection circuit which processes information and outputs a signal indicative thereof; and an internal test circuit for testing an integrity of the airflow and snore detection circuits prior to use of the pressure sensing device to ensure that both circuits are operational. An input port for pressure sensing device extends from the housing of the pressure sensing device so as to space a connector, for the cannula, a sufficient distance away from the bottom surface whereby the bottom surface will always remain flush with and in constant and continuous intimate contact with a support surface for the pressure sensing device.

REFERENCES:
patent: 6668828 (2003-12-01), Figley et al.
patent: 6849049 (2005-02-01), Starr et al.
patent: 7246619 (2007-07-01), Truschel et al.
patent: 2006/0169281 (2006-08-01), Aylsworth et al.
patent: 2007/0113850 (2007-05-01), Acker et al.
patent: 2007/0277824 (2007-12-01), Aylsworth et al.
Dr. David Rapoport, M.D., Robert Norman, M.S., R.R.T., Michael Nielson, R.R.T., R.PSG.T., “Nasal Pressure Airflow Measurement”, Copyright 2001 by Pro-Tech Services, Inc. (43 pgs).

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