Laboratory medicine is the bridge between clinical medicine and basic medicine. Laboratory Diagnostics has many blood testing devices. Here are 6 common blood testing devices.
1. Biochemistry analyzer (chemistry analyzer)
A biochemistry analyzer uses spectroscopic techniques in which different atoms absorb different amounts of light to make measurements. There are two main methods colorimetric method and indirect method.
Biochemistry analyzers are instruments used to detect and analyze vital chemical substances. The analyzers provide the basis for clinical information on the diagnosis and treatment of diseases and the healing and health status. The main brands of biochemical analyzers are HITACHI, SYSMEX Siemens, Beckman Coulter, Roche, Abbott, Toshiba, etc. 2.
2. Hematology Analyzer
Hematology analyzers are divided into 5-Part Hematology Analyzer and 3-Part Hematology Analyzer. hematology analyzers are based on the principle of blood cell counting and volume determination based on the non-conducting nature of blood cells and the detection of changes in electrical resistance caused by suspended blood cells in an electrolyte solution as they pass through the counting pores. This method is called the resistance method.
Automated hematology analyzers not only improve the accuracy of experimental results, but also provide many experimental indicators. This plays an important role in the diagnosis and differential diagnosis of diseases.
The major brands of hematology analyzers currently on the market are Beckman, Abbott, ABX, Sysmex, Siemens, Denmark Redu, Mindary, etc.
3. Blood gas analyzer
Blood gas analyzer is a medical device used for blood testing. This medical equipment has the advantages of fast, convenient and wide range of testing. It can not only detect the content of oxygen, carbon dioxide and other gases in the patient's blood and the change of blood pH and related indicators within minutes. It can also quickly reflect the content of potassium, sodium and calcium in the blood. This provides a favorable guarantee for rapid and accurate detection in the resuscitation of critical patients.
At present, the main brands of blood gas analyzers are Denmark Redu, Roche, Siemens, GEM, Abbott, Mindary, etc.
4. Chemiluminescent immunoassay analyzer
Chemiluminescent labeled immunoassay is also known as chemiluminescent immunoassay. This analyzer is an immunoassay that uses a chemiluminescent agent to directly label antigens or antibodies. Chemiluminescence immunoassay analyzer contains two parts, namely immunoreactive system and chemiluminescence analysis system.
The chemiluminescence analysis system uses a chemiluminescent substance that is catalyzed by a catalyst and oxidized by an oxidant to form an excited state intermediate. When this excited state intermediate back to the stable ground state while emitting photons, the use of luminescence signal measurement instrument to measure the quantum yield of light.
Immunoreactive systems are used to label luminescent substances (excited intermediates generated under reactant excitation) directly onto antigens (chemiluminescent immunoassays) or antibodies (immunochemiluminescent assays), or enzymes acting on luminescent substrates.
The main brands of chemiluminescent immunoassay analyzers in the world are Roche, Siemens, Abbott, Beckman, etc.
5. hemagglutinometer
Hemocoagulometer, or blood coagulation analyzer. This is a medical device that is a laboratory test for thrombosis and hemostasis. The detection index of molecular markers of hemostasis and thrombosis is closely related to various clinical disorders. Such as atherosclerosis, cardiovascular diseases, diabetes, arterial and venous thrombosis. Thrombo-occlusive vasculitis, pulmonary embolism, hypertensive syndrome in pregnancy, diffuse intravascular coagulation, hemolytic-uremic syndrome, chronic obstructive pneumonia, etc.
Laboratory diagnosis of thrombosis and hemostasis becomes necessary with the use of a hemagglutinator. There are two types of hemagglutinometers: fully automated and semi-automated.
The main brands of hemagglutinometers are Sysmex, Germany Meichuang, France Stago, Beckmann, etc.
6. fully automatic hematology rheometer
There are 3 types of fully automatic blood rheometers. Capillary viscometer (pressure sensor type), round simple viscometer (suspension filament type) and cone plate viscometer.
1) Capillary viscometer (pressure sensor type)
Capillary viscometer principle is the use of a standard capillary tube in the same conditions, the liquid viscosity is different, flow through a certain volume of liquid required time is different. The greater the viscosity, the longer the time required, viscosity and time is proportional. The measurement result is the same as the water than the viscosity.
2) Round simple viscometer (hanging wire type)
Round simple viscometer consists of two coaxial round simple. The cylinder gap to be measured in the liquid. Jane and a spring travel wire (hanging wire) connected. Generally fixed within the simple does not move. Outside the simple to a known angle rotation. By measuring the torque of the liquid potassium on the wall of the inner simple, converted into the viscosity of the liquid.
3) Cone plate viscometer
Cone plate viscometer consists of a round flat plate and a coaxial cone. The liquid to be measured in the cone and plate gap. General fixed plate. The cone is rotated at a known angle. The viscosity of the liquid is converted by measuring the torque of the liquid on the cone.
