Indicator buzzer PR Handheld Pulse Oximeter

Introduction

The 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.

Features

People 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.
In 2009, we obtained the production license and product registration certificate that issued by Shanghai.
ln 2014, we passed the EN ISO 13485 quality system certification and CE0123 certification by TÜV SÜD. And we got the 510K for the wrist and handheld pulse oximeter
ln 2015, we got ANVISA, INMETRO Approved.
In 2016, we got FDA510K approved for fingertip pulse oximeter.
In 2018, we got CE0123 approved for Patient Monitor and new watch oximeter
In 2019, we established Shenzhen factory.
In 2022-now, our business growing up rapidly, and have more cooperation partners.