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    Flow Switch Application in Medical Equipment

    The respiratory system is a very important life support system for the human body. In today's era, people pay unprecedented attention to health care issues. With the continuous improvement of the level of medical technology, the popular use of mid-to-high-end ventilators is used as a gas flow switch for monitoring key components of airflow velocity parameters. , has been widely used in ventilators and plays an important role. Flow switches are also called flow sensors. They have been used in the medical field for a long time. From hospital bed oxygen supply, floor pipeline oxygen supply to oxygen generators, ventilators, anesthetics and other medical equipment, the support of flow sensors is inseparable.

    Flow Switch Application in Medical Equipment

    Flow sensor for anesthesia machine

    The anesthesia machine is specially used to deliver anesthetics to the patient, and the gas flow sensor can measure the gas flow to make the gas composition supplied to the patient appropriate to relieve pain and other discomfort. The use of anesthesia machine replaces the anesthesiologist pinching the breathing balloon with his bare hands, and can also precisely control a series of parameters such as tidal volume, respiratory rate, positive end-expiratory pressure and so on while relieving the fatigue of the anesthesiologist.

    Flow sensor for sleep ventilator

    Sleep-disordered breathing is the second largest category of sleep disorders after insomnia. Its high prevalence, many complications, and serious health hazards have attracted great attention from the clinical medical community in recent years. Sleep ventilator is a device that can change, control or replace normal physiological breathing, improve respiratory function, increase pulmonary ventilation, reduce respiratory work consumption, and save heart reserve energy. Gas mass flow sensors used in sleep ventilators provide high-resolution and precise sensing capabilities to sense weaker airflow changes and more precisely control the air flow to the patient.

    Flow sensor for oxygen generator

    The role of the oxygen generator is to reduce the nitrogen delivered to the patient's air while increasing the proportion of oxygen. The current oxygen health care equipment is roughly divided into health care oxygen machines with an oxygen concentration of 30%-60%, molecular sieve medical oxygen generators with an oxygen concentration of more than 90%, and oxygen cylinders and portable oxygen cylinders with a higher oxygen concentration.

    In oxygen therapy and oxygen rehabilitation, too little oxygen inhalation will not achieve convalescent effect, and excessive oxygen inhalation will cause harm, so it is very important to control the oxygen flow. Gas flow sensors used in oxygen concentrators must be able to accurately measure ultra-low flow so that it can be used to detect when the patient is exhaling, when the air flow should be reduced, allowing the patient to exhale easily and comfortably.

    Flow sensor used in hospital diagnostic equipment

    Gas flow sensors can also be used in a variety of hospital diagnostic equipment, including hematology analyzers, blood cell analyzers, immunoassay analyzers, clinical chemistry analyzers, mass spectrometers, chromatographs (gas, liquid, high performance liquid). For example, the thermistor element flow sensor used in blood analyzers can be used to monitor the temperature of compartments, diffusion lamps and oil-cooled motors to avoid overheating, and if overheating occurs, immediately shut down to cool down.

    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 ever-changing sensor technology is constantly optimizing its sensitivity, accuracy, reliability and stability, which provide solutions to a variety of critical failure problems in medical devices.

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