Sensor Solutions in The Field of Medical and Health

The combination of Internet of Things technology and advanced sensors enables doctors to conveniently and timely grasp the patient's vital signs, changes in health status and other important data, greatly reducing labor costs and error rates, and improving the reliability and accuracy of diagnosis.

Jan 17,2023


The combination of Internet of Things technology and advanced sensors enables doctors to conveniently and timely grasp the patient's vital signs, changes in health status and other important data, greatly reducing labor costs and error rates, and improving the reliability and accuracy of diagnosis.

Various sensors such as gas sensors, temperature sensors, flow sensors, and pressure sensors can be applied to the medical and health field, and participate in the medical process as key components and play an important role. In the field of modern medicine, sensor technology has become a key factor restricting the development of high-end and advanced medical equipment, and it is also one of the main driving forces to promote the development of medicine.

Infrared Thermopile Sensor

The infrared thermopile sensor converts the absorbed infrared radiation into heat energy, and converts the temperature change into an electronic signal, which is enlarged and displayed. As a non-contact infrared temperature measurement sensor, the thermopile can quickly measure the surface temperature of the object without directly contacting the object to be measured, and will not pollute or damage the object to be measured.

Strictly speaking, medical-grade infrared thermometers have the highest accuracy requirements, and the accuracy needs to be between 0.1 and 0.2 degrees. High-precision infrared ear thermometers can meet the standard of medical-grade temperature measurement, but in order to avoid cross-infection, hospitals use ear It is necessary to add a disposable sheath to the temperature gun; consumer grade is next, and the accuracy of about 0.5 can meet our daily temperature measurement needs.

Infrared Thermopile Sensor

MEMS flow sensor

As an important part of the air circuit system of the ventilator, the flow sensor is responsible for converting the inhaled and exhaled gas flow into an electrical signal, which is sent to the signal processing circuit to complete the real-time detection of the respiratory airflow, from which the inhaled and exhaled tidal volume, each Minute ventilation, the monitoring system and medical staff can judge whether there is any abnormality.

Flow sensors have been used in the medical field for a long time. From hospital bed oxygen supply, floor pipeline oxygen supply to oxygen generators, ventilators, anesthesia machines and other medical equipment, the support of flow sensors is inseparable.

MEMS flow sensor

MEMS pressure sensor

Pressure sensors play an important role in medical patient record checking and minimally invasive surgical monitoring. Arterial blood pressure, intracranial pressure, and intrapulmonary pressure are all important parameters in the medical process. In addition, the monitoring, treatment, and health care required for medical care are inseparable from the accurate measurement of pressure sensors.

In addition to sophisticated medical and surgical facilities, medical supplies such as electronic sphygmomanometers that are commonly used in daily life also use pressure sensors to achieve autonomous real-time measurement.MEMS pressure sensor

CO2 sensor

At present, in the field of medical sensors, there are many applications of medical carbon dioxide sensors, and the more important applications include ventilators, anesthetics and infant incubators, etc., which are used to monitor the vital signs of the human body. At present, the main technical route of the mainstream carbon dioxide sensor is mainly the principle of non-dispersive infrared (NDIR).

Medical carbon dioxide sensors are also used in carbon-13 breath test items to determine whether they are infected with Helicobacter pylori. After the patient takes the urea labeled with carbon 13 or carbon 14, the highly active urease produced in the body will decompose it into ammonia, 13CO2 or 14CO2, and a small amount of 13CO2 or 14CO2 will be excreted through the blood through exhalation. By measuring the concentration of 13CO2 or 14CO2 in the exhaled breath, it can be judged whether the patient has Helicobacter pylori infection.

CO2 sensor

In addition, the carbon dioxide sensor can also be used to measure the end-breathing carbon dioxide content of the human body. In medical clinical monitoring, end-tidal carbon dioxide (EtCO2 for short) is a very important physiological parameter, which can simultaneously reflect the patient's pulmonary ventilation function and the patient's blood circulation function and pulmonary blood flow. It can accurately and quickly respond to the end of expiration, which is a very valuable application of carbon dioxide sensors in the field of medical and health.

Ozone sensor

The advanced oxidation process with ozone as the core can efficiently inactivate viruses, and finally ozone is decomposed into oxygen. It is a safe, green and environmentally friendly disinfection technology for the disinfection of new coronaviruses.

Ozone is often used for disinfection and purification in medical fields such as operating rooms, disposal rooms, infectious disease areas, burn and scald wards, waiting areas, and hospital toilets. (There is also ozone residual monitoring in the space after disinfection~)

Ozone sensor

MEMS breath sensor

About 80% to 90% of breath is related to oral diseases, and the direct source is a part of bacteria in the mouth, which decomposes food residues and produces volatile sulfides (VSCs), which are also the main components of breath.

The causes of bad breath are complex, but the main component of bad breath is usually hydrogen sulfide (H2S) gas. Through the detection of bad breath, it is possible to discover the related diseases that may exist in the patient.

MEMS breath sensor

Oxygen sensor sensor

Oxygen infusion is commonly used in medical procedures. The medical oxygen is released from the steel cylinder, which can be humidified through the bubble bottle and directly inhaled by the patient. Some medical equipment must be equipped with oxygen sensors to display the oxygen concentration, such as ventilators, anesthesia machines, hyperbaric oxygen chambers and baby incubators. The oxygen sensors used in these medical devices have high reliability requirements and are now most commonly used as electrochemical oxygen sensors.

Oxygen sensor sensor

With the adjustment of the epidemic prevention and control policy, the supply of oxygen generators is in short supply and has become a "big hit". In oxygen concentrator equipment, it is necessary to measure the oxygen concentration and flow in real time to ensure the effect of oxygen inhalation therapy. The superior performance ultrasonic oxygen sensor provides effective monitoring for the continuous and stable output of oxygen from the oxygen concentrator. machine of choice.

Oxygen sensor sensor


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