In todays era, people are paying unprecedented attention to health care issues,In vitro diagnostics, drug research, patient testing, drug delivery methods, and implantable medical devices are also constantly updating and iterating.
In the application of medical devices, a small failure problem is a major event related to the life and health of patients. In the development of modern medicine, the rapidly changingSensor technologyIt also continuously optimizes its sensitivity, accuracy, reliability and stability to provide solutions to various key failure problems of medical devices.
Flow sensors have been used in the medical field for a long time. From hospital bed oxygen supply, floor pipeline oxygen supply to oxygen concentrators, ventilators, anesthetics and other medical equipment, they are inseparable from the support of flow sensors.
. Consensic CAFS4000 (Medical Gas Mass Flow Sensor).
1. Flow sensor application anesthesia machine
The anesthesia machine is specially designed for deliveryAnesthetic agentTo the patient to relieve pain and other discomfort. Continuous anesthesia machines can continuously supply correct medical gases such as air, oxygen,Nitrous oxide) and anesthetic vapor (e.g. isoflurane) of an accurate concentration, and these mixtures are delivered to the patient at an appropriate pressure and flow rate.
Gas flow rateThe sensor can measure the flow rate of air, oxygen and nitrous oxide, so that the gas composition supplied to the patient is appropriate. The mixed gas delivered to the patient can be measured by the airflow sensor and displayed on the screen of the anesthesia machine to meet the standards set by the doctor.
2. Flow sensor used in sleep ventilator
A ventilator is a device that can change, control or replace a persons normal physiological breathing, improve respiratory function, and increasePulmonary ventilationA device for reducing the consumption of respiratory work and saving the energy reserve of the heart. Its function is that it can play important roles in preventing and treating respiratory failure, reducing complications, saving and prolonging the life of patients, etc. It has been widely used for treating respiratory failure caused by various reasons, anesthesia respiratory management during major surgery,Respiratory support therapyAnd first aid resuscitation.
Ventilators mainly consist of turbines, pumps, valves, chips, sensors (flow sensors, humidity sensors andPressure sensor) and other compositions, the composition structure is relatively simple, but the requirements are very high.
3. Flow sensor used in oxygen generator
The function of an oxygen generator is to reduce the nitrogen in the air delivered to the patient while increasing the proportion of oxygen.Oxygen generatorIt is used for patients who cant smoothly absorb oxygen into the blood, such as patients with some lung diseases. The gas flow sensor used in the oxygen generator must be able to measure ultra-low flow, such as 0.1 ㎝ ³ flow, and it can also be used to detect when the patient exhales, that is, when the air flow should be reduced, making it easy and comfortable for the patient to exhale.
4. Flow sensors are used in hospital diagnostic equipment
Gas flow sensors can also be used in various hospital diagnostic devices, including blood analyzers,Blood cell analyzerAn immunoassay analyzer, a clinical chemistry analyzer,Mass spectrometer, chromatograph (gas phase, liquid phase, high performance liquid phase) and various laboratory automation systems. For example for a blood analyzerThermistorThe component flow sensor can be used to monitor the temperature of the compartment, diffuser lamp and oil-cooled motor to avoid overheating. If there is overheating, stop the machine immediately to cool it.
