Core tip : Wearable health sensors have long been on the market, and an absorbable Proteus sensor has also been born (has passed the FDA (US Food and Drug Administration) review), the application of sensors in the field of medical electronics is common. This article mainly introduces the basic applications of biosensors, pressure sensors, and non-contact temperature sensors in the field of medical electronics.
Note : The Proteus sensor can be completely in contact with gastric juices while in the stomach, and then it will convey a unique signal according to the timing of ingestion. These signals are transmitted to a battery-powered patch on the skin through body tissue, so that various signals and physiological and behavioral indicators such as heart rate, posture, and activity can be detected. Of course, this last Proteus type sensor will flow out of the body like a high-fiber food, generally maintaining a 7-day lifespan.
Pressure sensor
Pressure sensors are transducers that convert force or gravity into electrical signals. The application of pressure sensors in medicine is called medical pressure sensors. They must be highly accurate and compactly packed to facilitate portability, especially when the device is to be directly connected to the patient. If the sensor is used in a medical device integrated monitoring instrument, standard packaging materials such as stainless steel and anodized aluminum are used. If the device is in direct contact with the human body or liquid, special stainless steel or disposable sensors that can be autoclaved can be used. The following figure shows the application of pressure sensor in medical treatment.
Medical pressure sensors were used in early bed load monitoring, but now small pressure sensors are used in areas prone to human error, such as infusion pumps used for drug delivery. In order to adjust the flow rate as accurately as possible and to facilitate nurses to monitor at any time, people apply pressure sensors to infusion pumps. This sensor can accurately measure the weight of the infusion bag. When the weight of the liquid is different from the preset value, the sensor will immediately send a warning message to the connected device and communicate with the controller in time. More applications of pressure sensors in medical electronics, 〠Detailed 】
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