Non-Invasive Blood Pressure (NIBP) Module

Introduction

The Non-invasive Blood Pressure (NIBP) Module is used to monitor blood pressure of patients non-invasively in Intensive Care Units (ICUs). Continuous monitoring of arterial blood pressure and peripheral vascular resistance during surgery as well as in ICU is very essential. The NIBP module uses oscillometric method for the measurement of blood pressure. It comprises of a tourniquet, a pressure transducer, an inflation pump and deflation solenoid valve connected to electronic circuitry. The rate of change of pressure (dP/dt) during deflation is used to derive mean, systolic and diastolic blood pressures, in contrast to change in pressure (DP) waveform used in commercially available modules. The advantage of dP/dt waveform over DP is the accurate determination of mean blood pressure. Systolic, diastolic and mean blood pressures are provided repetitively with an average period of 10 minutes (programmable).

This module can be coupled with non-invasive cardiac output monitor for monitoring peripheral vascular resistance of the patient and can also be used as a stand alone instrument with a microcontroller and a display unit.

Specifications :

• Principle : Oscillometry
• Sensor : Strain gauge pressure transducer
• Range : 10mmHg to 250mmHg
• Accuracy : � 2mmHg
• Resolution : � 5mmHg
• Input : �12V, +5V DC & Control signals from Microcontroller
• Output : Change in pressure (DP) and rate of change of pressure (dP/dt) to Microcontroller

Applications

NIBP Module is used in ICUs, the recovery room and during surgery for monitoring the arterial blood pressure and peripheral vascular resistance.

• For further information please contact

Head, Technology Transfer & Collaboration Division,
Bhabha Atomic Research Centre,
Trombay, Mumbai- 400 085
Tel : 091-022-25593897
Fax : 091-022-25505151 / 25519613
Email : headttcd@barc.gov.in