Browse Prior Art Database

Multiplexed Bed Monitoring System

IP.com Disclosure Number: IPCOM000085095D
Original Publication Date: 1976-Feb-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Dickerson, JA: AUTHOR

Abstract

A hospital bed monitoring system is illustrated schematically in the figure. This is a sensor based system intended to detect the presence of liquids, solids, and gases expelled from a patient lying in a bed equipped with a particular type of perma-selective membrane sheet, which permits the monitoring devices to detect the presence of materials expelled by the patient.

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Multiplexed Bed Monitoring System

A hospital bed monitoring system is illustrated schematically in the figure. This is a sensor based system intended to detect the presence of liquids, solids, and gases expelled from a patient lying in a bed equipped with a particular type of perma-selective membrane sheet, which permits the monitoring devices to detect the presence of materials expelled by the patient.

The purpose of the monitor is to alert hospital personnel to the situation which exists so that prompt patient care can be given.

In the figure, the basic monitor consists of a gas chromatograph 1 whose input is controlled by a multiplexer 2 of a electromechanical type, which connects various plastic tubing elements 3 to individual beds 4. The multiplexer is really a multiport selection valve, which allows vacuum pump 5 to draw a vapor sample through a given tube 3 from an individual bed 4 to the gas chromatograph 1.

The gas chromatograph 1 detects the presence of any of the characteristic gaseous products associated with blood, urine, feces, vomitus, etc., which may be expelled by the patient and, upon detection of these characteristic gases, actuates an alarm 6 and a room/bed indicator 7 as illustrated. The particular body product which has been detected can be identified through a series of identification parameters connected to the gas chromatograph system 1.

In association with the gas chromatograph 1 would be specific detection and comparator units, not show...