First of all, the oxygen machine
Oxygen generator is a machine for producing oxygen, and its principle is to use air separation technology. Firstly, the air is compressed at high density, and the gas-liquid separation is carried out at a certain temperature by using the difference of condensation points of each component in the air, and then further rectification is carried out.
Second, the blood glucose meter
Blood glucose meter, also known as blood glucose meter, is an electronic instrument for measuring blood glucose level. According to its working principle, blood glucose meter can be divided into photoelectric type and electrode type. The test principle of electrode blood glucose meter is more scientific, and the electrode can be embedded.
Third, sphygmomanometer
Sphygmomanometer is an instrument for measuring blood pressure, also known as sphygmomanometer. Sphygmomanometer mainly includes auscultation sphygmomanometer and oscillometric sphygmomanometer.
The auscultation sphygmomanometer mainly includes: mercury sphygmomanometer (manometer), clockwork sphygmomanometer (pressure beam sphygmomanometer, light display sphygmomanometer, liquid crystal sphygmomanometer, etc.
Oscillographic method is also called oscillation method. Its principle is to obtain the oscillation wave generated during deflation and convert it into blood pressure value through a certain algorithm. Most electronic sphygmomanometers are designed according to the oscillometric principle.
Fourth, therapeutic instruments.
Therapeutic instrument is a kind of health care machine with certain health care function, but it can't replace drug treatment and routine medical treatment.
Verb (abbreviation for verb) wheelchair
Wheelchairs are chairs with wheels to help replace walking, which can be divided into electric and manual folding wheelchairs. Wheelchair is an important mobile tool for family rehabilitation, transportation, medical treatment and outdoor activities of the wounded and disabled. It not only meets the needs of people with physical disabilities and mobility difficulties, but also facilitates the movement and care of family members, so that patients can exercise and participate in social activities with the help of wheelchairs.