Digital Finger Pulse Oximeter SHO-3002
Oxygen Saturation is a percentage of Oxyhemoglobin (HbO2) capacity, compounded with oxygen, by all combinative hemoglobin (Hb) capacity in blood. In other words, it is consistency of Oxyhemoglobin in blood. It is a very important parameter for the Respiratory Circulation System. Many respiratory diseases can result in oxygen saturation being lowered in human blood. Additionally, the following factors can reduce oxygen saturation: Automatic regulation of organ dysfunction caused by Anesthesia, Intensive Postoperative Trauma, injuries caused by some medical examinations. That situation might result in light-headedness, asthenia, and vomiting. Therefore, it is very important to know the oxygen saturation of a patient so that doctors can find problems in a timely manner.
The fingertip pulse Oximeter features small size, low power consumption, convenient operation and portability. It is only necessary for a patient to put one of his fingers into the fingertip photoelectric sensor for diagnosis, and a display screen will show oxygen saturation. It has been proven in clinical experiments that it also features high precision and repeatability.
Principle of the Oximeter is as follows: A mathematical formula is established making use of Lambert Beer Law according to Spectrum Absorption Characteristics of Reductive hemoglobin(RHb) and Oxyhemoglobin (HbO2) in glow and near-infrared zones. Operation principle of the instrument: Photoelectric Oxyhemoglobin Inspection Technology is adopted in accordance with Capacity Pulse Scanning and Recording Technology, so that two beams of different wavelength oflights (660nm glow and 905 nm near infrared light) can be focused onto a human nail tip through a clamping finger-type sensor. A measured signal obtained by a photosensitive element, will be shown on the Oximeter's display through process in electronic circuits and microprocessor shown on the Oximeter's display through electronic circuits and a microprocessor.
Diagram of Operation Principle
1. Red and Infrared-ray Emission Tube
2. Red and Infrared-ray Receipt Tube
Measurement range: 35%-100%
Measure range: 30-250BPM
Pulse rate display model: Bargraph Indicator
Two AAA alkaline Batteries
Power consumption: Less than 30mA
Low power indication: The low voltage lamp is lighted when the voltage less than 2.6V (error±0.2V)
Battery Life: Two AAA l.5V, 600mAh alkaline batteries could be continuously operated as long as 30 hours.
Operation Temperature: 5-40℃
7.EMC of this product complies with IEC60601-1-2 standard.
8.Measurement Performance in Low Perfusion Condition: required the test equipment (FLUKE-INDEX 2XL) the pulse wave is available without failure when the simulation pulse wave amplitude is at 0.4%.
9.Interference Resistance Capacity against Ambient Light: Device works normally.
when mixed noise produced by FLUKE-INDEX 2XL.