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Home > News > Application of pressure sensor and temperature sensor in medical industry

Application of pressure sensor and temperature sensor in medical industry

2018-01-18

With the development of the medical device market, higher requirements have been placed on its supporting sensors. Sensors that are used more in the medical industry are temperature and pressure sensors. There is still a certain gap between domestically produced medical devices and foreign countries. In addition to differences in manufacturing technology, the performance of sensors is also one aspect. Today's high-end medical devices have high performance requirements for their associated sensors, such as accuracy, reliability, stability and volume. The following is a brief description of the application of pressure sensors in the measurement of body temperature in minimally invasive catheters and ablation procedures and temperature sensors.

Modern minimally invasive surgery can not only reduce the trauma of the surgical site, but also greatly reduce the patient's pain, and the recovery process is also very fast. The reason for this requirement is that it is related to various medical monitoring equipment in addition to the experience of doctors. Many medical devices used in this area of surgery are now miniaturized, like various catheters and ablation devices. These catheters include thermodilution catheters, urethral tubes, esophageal catheters, central venous catheters, and intracranial pressure catheters. In addition to their conduction function, the temperature or pressure sensor on the catheter also provides smooth pathology and minimally invasive surgery for patients. Provide important protection.

Due to the small size of the wounds created during the catheter and the surgical procedure, it is generally difficult to directly observe the characteristics, but the temperature and pressure parameters are the key parameters for the success of the operation, so it is necessary to rely on the temperature and pressure sensors installed at the front end. These sensors are not only small in size, but also require a high degree of accuracy and reliability, which can have a negative impact on surgery.

The traditional medical methods used to measure the patient's body temperature are mercury thermometers, which have the disadvantages of slow response time and low precision. Nowadays, many large hospitals use electronic thermometers. This Temperature Sensor has short measuring time, high measurement accuracy, convenient reading, and memory function. It has outstanding performance in clinical use. It usually consists of a temperature probe, a signal processing unit, a display screen, and a power supply. The temperature sensing probe is a sensitive component. Generally, one or several high-precision fast-reacting thermistors are selected, which are directly related to the accuracy and response speed of the output temperature; the signal processing unit has two algorithms of heating and prediction. The heating algorithm can quickly shorten the detection time; the prediction algorithm predicts the current body temperature based on the trend of rising body temperature. This temperature sensor can read the body temperature of the human body in the 4S time at the fastest time, which is several orders of magnitude higher than the traditional mercury thermometer. The advantage is quite obvious.

It can be seen that the level of medical care is not only related to the doctor's clinical experience, but also depends largely on the various medical testing equipment and equipment installed on the hospital. The parameters of these sensors are taken by the doctor. The mode of treatment plays a leading role.

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