Mallinckrodt NPB-190 Manual del operador descargar pdf (Pagina 11)

INTRODUCTION

Intended Use

General Operating Principles and Conditions

INTENDED USE

The Nellcor NPB-290 pulse oximeter is intended for continuous,

noninvasive monitoring of functional oxygen saturation of arterial

hemoglobin (SpO

2), and pulse rate (measured by SpO2 sensor).

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

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

home environment. It may be used during intra-hospital transport

when powered by its internal battery.

WARNING: The NPB-290 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-290 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 A, Principles of Operation.

Because a measurement of SpO

2 is dependent on light from the

sensor, excessive ambient light can interfere with this

measurement.

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Mallinckrodt NPB-190 Manual del operador Pagina 11