Mallinckrodt NPB-190 Instrukcja Operatora Pobierz pdf (Strona 9)

INTRODUCTION

Intended Use

General Operating Principles and Conditions

INTENDED USE

The purpose and function of the Nellcor NPB-295 pulse oximeter

is to continuously and noninvasively measure functional oxygen

saturation of arterial hemoglobin (SpO

2) and pulse rate (measured

by an SpO

2 sensor). It is also used to display plethysmographic

waveforms. Refer to Appendix A: Principles of Operation for a

more detailed discussion of oximetry.

The monitor is intended for use on adult, pediatric, and neonatal

patients in all hospital areas, hospital-type facilities, and home

environments. It may be used during intra-hospital transport

when powered by its internal battery.

WARNING: The NPB-295 is intended only as an adjunct in

patient assessment. It must be used in conjunction with

clinical signs and symptoms.

GENERAL OPERATING PRINCIPLES AND CONDITIONS

The NPB-295 uses pulse oximetry to measure functional oxygen

saturation in the blood. Pulse oximetry works by applying a

sensor to a pulsating arteriolar vascular bed, such as a finger or

toe. The sensor contains a dual light source and a photodetector.

Bone, tissue, pigmentation, and venous vessels normally absorb a

constant amount of light over time. The arteriolar bed normally

pulsates and absorbs variable amounts of light during the

pulsations. The ratio of light absorbed is translated into a

measurement of functional oxygen saturation (SpO

2).

Note: For an explanation of functional versus fractional

saturation, refer to Appendix B, Principles of Operation.

Because a measurement of SpO

2 is dependent upon light from the

sensor, excessive ambient light can interfere with this

measurement.

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Mallinckrodt NPB-190 Instrukcja Operatora Strona 9