Ventilator monitor and alarm apparatus
First Claim
1. A ventilator monitor and alarm apparatus including pressure sensing means for sensing ventilator pressure in a respiratory circuit, alarm means, and electronic circuit means including alarm circuit means cooperating with said pressure sensing means and said alarm means for creating an alarm condition and energizing said alarm in response to failure of said pressure sensing means to detect a preselected minimum pressure in said respiratory circuit, manual on/off switching means for turning the apparatus on and off, and a memory circuit which maintains said apparatus turned on until said manual on/off switching means is actuated to turn said apparatus off, comprising digital logic circuit means cooperating with said pressure sensing means for turning the apparatus on independent of said manual on/off switching means in response to a preselected minimum pressure sensed by said pressure sensing means said digital logic circuit means including means for monitoring the condition of said on/off switching means.
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Accused Products
Abstract
An improved ventilator monitor and alarm apparatus includes circuit means for actuating the apparatus in response to sensed pressure in a ventilator circuit.
58 Citations
8 Claims
- 1. A ventilator monitor and alarm apparatus including pressure sensing means for sensing ventilator pressure in a respiratory circuit, alarm means, and electronic circuit means including alarm circuit means cooperating with said pressure sensing means and said alarm means for creating an alarm condition and energizing said alarm in response to failure of said pressure sensing means to detect a preselected minimum pressure in said respiratory circuit, manual on/off switching means for turning the apparatus on and off, and a memory circuit which maintains said apparatus turned on until said manual on/off switching means is actuated to turn said apparatus off, comprising digital logic circuit means cooperating with said pressure sensing means for turning the apparatus on independent of said manual on/off switching means in response to a preselected minimum pressure sensed by said pressure sensing means said digital logic circuit means including means for monitoring the condition of said on/off switching means.
Specification