Categories of catheters for medical use: Class I medical catheters, Class II medical catheters and Class III medical catheters
Class I catheters include: tracheal intubation, endotracheal tubes, ventricular drains, triple-lumen and double-bladed tubes, closed thoracic drainage tubes, T-tubes, peritoneal drainage tubes, deep vein tubes, wound drainage tubes, bladder drains, and other types of catheters. , bladder drains
Class II catheters: urinary catheters, gastric/nasogastric tubes, intravenous indwelling needles
Class III catheters: infusion tubes, nasal oxygen tubes
Often what people call Class I medical catheters, Class II medical catheters, and Class III medical catheters are based on the classification of medical devices.
According to the Rules for the Classification of Medical Devices, Class I medical devices are those whose safety and efficacy can be guaranteed through routine management;
Class II medical devices are those whose mechanism has been internationally and domestically recognized and whose technology is mature and whose safety and efficacy must be controlled;
Class III medical devices are those which are implanted in the human body or used for life support, or those with a complex technical structure and which have a significant impact on human beings.
Class III medical devices are those which are implanted in the human body or used for life support, or are used for life support. The technical structure of the complex, potentially dangerous to the human body, safety, effectiveness must be strictly controlled;
So if you want to see which class of catheter you want to confirm, just look at the use of the catheter in line with which of the above can be.
Extended Information
Medical catheters are categorized into general catheters and specialty catheters.
Ordinary catheters are a length of plastic tubing with a tapering front break to facilitate insertion into a blood vessel; the end is the same as the end of an injection needle to facilitate connection to a syringe.
The anterior portion of the common catheter has various shapes, such as single arc, reverse arc, double arc, reinforced double arc, hepatic arc frontal view, hepatic arc lateral view, triple arc, etc., to facilitate insertion of blood vessels in different parts of the body. The specification of the catheter is often used to express the F number (FrenchNo), such as 6F or 7F, etc. The F number is equal to the number of millimeters of the outer circumference of the catheter.
Specialty catheters are relatively complex in shape and construction, and fulfill a variety of medical functions. Special catheters include:
Balloon catheters are the most widely used type of catheters, including ordinary double-lumen single-balloon catheters, double-lumen bilobed balloon catheters, double-lumen trilobed balloon catheters, double-lumen single-balloon catheters (Inoue balloon catheters),
quadruple-lumen double-balloon catheters (carotid arterioplasty balloon catheters), detachableballooncatheheter (detachableballooncatheheter), and other special catheters. detachable balloon catheter, calibrated leak balloon catheter,
coronary angioplasty balloon catheter, monorail balloon catheter, balloon on wire catheter,
Coronary arterioplasty balloon catheter, monorail balloon catheter, and balloononwirecatheter), balloon catheter with fixed guidewire in the tip segment (balloononawiresystem),
Combined tandem balloon catheter (triple-lumen double-balloon), perfusion balloon catheter, laser ballooncatheter, radiofrequency thermal balloon catheter (triple-lumen single-balloon catheter) and so on. balloon catheter), etc.
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