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User Groups
Elderly, People with CVD and Respiratory Problems, Hospitals
Description and Functionality
Pulse oximeter is a device intended for the non-invasive measurement of arterial blood oxygen saturation (SpO2) and pulse rate (HR). The pulse oximeter developed comprises of (i) an assembly of three light sources to illuminate the targeted optical pulse generator, (ii) photo-detector array unit- to collect transmitted or reflected optical pulses generated from optical pulse generator, (iii) hybrid programmable gain amplification unit for allocating time variation between the received pulses and generating three AC signals from optical pulses, (iv) signal processing unit for removing noise of the obtained AC signals and obtaining stable relevant AC signals, (v) a Fourier Transformation based ratio calculation unit to estimate SpO2, (vi) a Fourier Transformation based heart beat rate (HR) calculation unit to estimate SpO2 and (vii) a monitor to display SpO2 and heart beat rate (HR) in values and plethysmography waveforms.
State-of-the-art
The device for the purpose of calculating stable SpO2, the ratio (R = [AC signal (red) / AC signal (ref )] / [AC signal (infrared) / AC signal (ref )]) is calculated by first normalizing the red as well as infrared signals by the signal received by the reference LED, and then by dividing the normalized signals from red and infrared LEDs. The main benefit of this method is that systematic noise will impact the normalized red and infrared signals equally thus eliminating the noise.
Stage of Development
Extensive filed trials have been carried out at AIIMS Raipur, AIIMS New Delhi, Old Age homes etc and the technology is ready for commercialization.
Specifications and Approximate Cost
Dimensions: 9cm x 7cm x 3cm Weight: 80gm
Material cost: ₹1,200/-
Technology Developer
Dr. Amrit Dixit
Disha Institute of Management And Technology,
Chandrakhuri Marg,
Raipur – 492101, Chattisgarh amritdixit108@gmail.com
+91 8821049105, +917000619350
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