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Fingertip Pulse Oximeter for home & Professional use

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Fingertip Pulse Oximeter for home & Professional use

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  1. Fingertip Pulse Oximeter for home & Professional use

  2. Pulse Oximeter - What is it? A meter used to measure the concentration of oxygen in the blood. It is done with an oximeter, a photoelectric device specially designed for this purpose and a reusable probe. The oximeter works on the principle that the oxygenated blood is a brighter color of red than the deoxygenated blood, which is more blue-purple.

  3. Pulse oximeters display oxygen saturation, pulse rate, pulse strength, low battery, and alarms. There may be a waveform display also. Invented in 1972 by Takuo Aoyagi, an electrical engineer at Nihon Kohden company in Tokyo.

  4. What Does it Do?

  5. Pulse Oximetry provides estimates of arterial oxyhemoglobin saturation (SAO2) by utilizing selected wavelengths of light to noninvasivelydetermine the saturation of oxyhemoglobin

  6. Handheld Pulse Oximeter

  7. Why is it used? it is used to detect hypoxia. hypoxia is a pathological condition in which the body as a whole (generalized hypoxia) or a region of the body (tissue hyoxia) is deprived of adequate oxygen supply.

  8. Areas of Use • Anesthesia standards require pulse oximetry on all anesthetized patients. • Used with ventilator dependant patients. • Frequently incorporated into vital signs monitors measuring heart rate, blood pressure, and temperature. • It is commonly used in the hospital in the continuous mode for critical applications and intermittently for less critical patients.

  9. Benefits of Use • Low cost (Finger units <$50). • Ease of Use (Clip and Press). • Degree of Accuracy.

  10. Limitations of Use • Intravenous Dyes. • Motion. • Low Perfusion states. • Black or blue nail polish.

  11. Areas of concern • Sensitive to motion. • Readings below 85% have increased error. • Low perfusion state increases error. • Ambient light interferes with reading. • Delay in reading of about 12 seconds. • Dysfunctional hemoglobin.

  12. Since first generation devices, technical advances which have been made to improve pulse oximetry include: • Calibration resistors and chips embedded into the sensor. • The use of ECG synchronization techniques. • Various motion sensing improvements. • Specialty sensors for high altitude climbers. • Smart alarm systems for pulse oximeters. • A reduction in size, cost and power use. • Wireless connection via Bluetooth technology.

  13. Pulse oximeters are relatively safe devices with a few safety issues: • Infection especially with reusable sensors. • Possible heating and minor burns to sensitive skin due to the red/infra-red LEDs. • Routine electrical safety concerns.

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