LEDs PR Handheld Pulse Oximeter Indicator Buzzer
|
Indicator buzzer PR Handheld Pulse Oximeter IntroductionThe original oximeter was developed by Millikan in the 1940s. It monitors the ratio of oxygen-carrying hemoglobin to oxygen-free hemoglobin in arteries. A typical oximeter has two LEDs. The two LEDs face the part of the patient to be tested - usually the fingertip or earlobe. One diode emits a beam with a wavelength of 660 nanometers and the other emits 905, 910 or 940 nanometers. Oxygenated hemoglobin absorbs these two wavelengths very differently than without oxygen. Using this property, the ratio of the two hemoglobins can be calculated. The procedure for the test usually does not require blood to be drawn from the patient. A normal oximeter can also display the patient's pulse. According to the Beer-Lambert law, the functional relationship between the ratio R/IR and arterial oxygen saturation (SaO2) should be linear, but because biological tissue is a complex optical system with strong scattering, weak absorption, and anisotropy [2- 4], which does not fully comply with the classical Beer-Lambert law, thus leading to the establishment of a mathematical model expressing the relationship between the measured value of the relative change in the absorbance of red and infrared light (R/IR value) and the arterial oxygen saturation (SaO2). difficulty. The corresponding relationship between R/IR and SaO2, that is, the calibration curve, can only be determined experimentally. Most pulse oximeter manufacturers use experimental methods to obtain empirical calibration curves to complete the pre-calibration of the products before leaving the factory.
FeaturesPeople with vascular diseases (coronary heart disease, hypertension, hyperlipidemia, cerebral thrombosis...) have lipid deposition in the vascular cavity, poor blood flow, and difficulty in oxygen supply. Cardiovascular and cerebrovascular patients, blood viscosity, plus coronary Sclerosis, narrowing of the vascular lumen, resulting in poor blood supply and difficulty in supplying oxygen. Every day the body…
Factory
Industrial automation is an important prerequisite for starting Industry 4.0, BERRY as the industry leader,is keeping pace with the trend of the times.we have been implementing automation on our core technology and became the creator of advanced manufacture technology in the industry.
Why Choose Us
Shanghai Berry Electronic Tech Co., Ltd. is located in Shanghai Caohejing High-tech Park, a beautiful low-carbon and environmentally friendly city. We have been devoted to the R&D, manufacturing and sales of medical electronic instruments in the field of monitoring since 2003.
Our Bio-Medical technology has reached the domestic advanced level. Important breakthroughs have been made in non-invasive blood pressure calculation methods, blood oxygen saturation detection, and multi-parameter monitoring systems. After years of development, we have established good cooperative relations with customers worldwide, with annual sales reaching tens of millions dollars.
BERRY always provides customers with high-quality, cost-effective
products. It is important for us to maintain good quality.
|
||||||||
Product Tags: LEDs Handheld Pulse Oximeter Pulse rate medical diagnostic equipment PR Handheld Pulse Oximeter |
![]() |
0.25kg Portable Blood Oxygen Meter With USB Interface |
![]() |
Finger Handheld Pulse Oximeter 1000mAh Battery Capacity 8 Hours Battery Life |
![]() |
Digital OLED Display Handheld Pulse Oximeter ±2% Accurate For Blood Oxygen Measurement |
![]() |
Pulse Rate Alarm 0.25kg Handheld Pulse Oximeter With ±2% Measurement Error |
![]() |
1000mAh Portable Blood Oxygen Meter With Digital OLED Display |
![]() |
Rechargeable Lithium Battery Pocket Pulse Oximeter With Low / High SpO2 And Pulse Rate Alarm |