In Vitro Diagnostic Instruments
In vitro diagnostic instruments refer to devices that obtain relevant clinical diagnostic information by testing human samples (such as blood, body fluids, tissues, etc.) outside the human body, helping to assess diseases or bodily functions.
1. Biochemical Analyzers
Image source from the internet, please contact for removal if there is infringement.
Used to detect various biochemical indicators in samples such as blood and urine, including blood glucose, blood lipids, liver function, kidney function, etc., providing a basis for the diagnosis and treatment of diseases.
(1) Usage Method
(1) Instrument Preheating: Turn on the instrument power and preheat according to the instrument manual requirements to ensure the instrument reaches a stable working state.
(2) Reagent Preparation: Prepare the corresponding biochemical reagents according to the testing items, and perform reconstitution, calibration, and other operations as required.
(2) Precautions
Instrument Installation and Environment: Install according to the instrument manual requirements, ensuring the instrument is placed steadily with enough space for operation and maintenance. The instrument should be placed in an environment with suitable temperature, humidity, and good ventilation, avoiding direct sunlight, dust, vibration, and electromagnetic interference.
2. Immunoassay Analyzers
Image source from the internet, please contact for removal if there is infringement.
Includes chemiluminescence immunoassay analyzers, enzyme-linked immunoassay analyzers, etc., mainly used to detect various antigens and antibodies in the human body, such as infectious disease markers, tumor markers, thyroid function indicators, etc.
(1) Usage Method
(1) Sample Collection and Processing: Collect blood or other body fluid samples from patients, centrifuge to separate serum or plasma, ensuring the samples are free from hemolysis, lipemia, and other abnormalities.
(2) Sample Loading: Load the processed samples onto the instrument’s sample rack, and input sample information and testing items according to the prompts on the instrument’s operation interface.
(2) Precautions
Sample Collection and Processing: Strictly follow the operating procedures for sample collection, ensuring the sample volume, collection site, and collection time meet the requirements, avoiding hemolysis, contamination, or deterioration of the samples. Samples should be processed and tested promptly after collection, and if preservation is needed, they should be stored under specified conditions to avoid prolonged storage affecting test results.
3. Molecular Diagnostic Instruments
Image source from the internet, please contact for removal if there is infringement.
Such as nucleic acid extraction instruments, PCR amplifiers, gene sequencers, etc., used for detecting and analyzing nucleic acid molecules like DNA and RNA, applicable in fields such as infectious disease diagnosis, tumor gene testing, and genetic disease diagnosis.
(1) Usage Method
(1) Calibration and Quality Control: Regularly calibrate the instrument, using standards to ensure the accuracy of test results. Additionally, perform internal quality control using quality control materials to monitor the stability and accuracy of the instrument.
(2) Detection and Analysis: Start the detection program, the instrument automatically aspirates samples and reagents, performs reactions and detections, and analyzes the biochemical indicator content in the samples.
(2) Precautions
(1) Sample Collection and Processing: Strictly follow the operating procedures for sample collection, ensuring the sample volume, collection site, and collection time meet the requirements, avoiding hemolysis, contamination, or deterioration of the samples. Samples should be processed and tested promptly after collection, and if preservation is needed, they should be stored under specified conditions to avoid prolonged storage affecting test results.
(2) Reagents and Consumables: Use reagents and consumables that are compatible with the instrument, and do not arbitrarily change brands or models to avoid affecting the accuracy of the tests and the normal operation of the instrument. Reagents and consumables should be stored as required, paying attention to expiration dates, and checking their appearance and quality before use. If any deterioration, expiration, or packaging damage is found, they should not be used.
Source of the text｜Practice Development Department
Text and Image Editor｜Wu Donglei
Responsible Review｜Du Tianjiao