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Details To Be Paid Attention To When Cleaning Various Medical Devices

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Author : Cleaning Brush
Update time : 2022-10-14 17:08:45

What is a medical device?

Medical devices refer to various devices used in the medical field, including various devices for clinical diagnosis and treatment, various devices for medical tests, and clinical inspections.
The used instruments are seriously polluted, and many instruments have blood, pus, dry excrement, and secretions. If the cleaning is not thorough, it will bring difficulties to sterilization or even cause sterilization failure. Domestic investigations have proved that there is still some positive occult blood on some sterilized instruments, especially instruments with teeth, gaps, pores, and joints, which are difficult to clean, and is likely to cause incomplete cleaning. The proteinaceous organic matter contaminated on medical devices is not thoroughly cleaned, which has a protective effect on microorganisms and is likely to cause sterilization failure. The main reasons for the incomplete cleaning of instruments are not paying enough attention to cleaning, not brushing carefully enough, neglecting and omitting difficult-to-clean parts, and improper detergents or cleaning methods.
According to the modern preventive medicine point of view, the treatment procedures for contaminated medical equipment should be disinfection, cleaning, drying, and sterilization, which is more conducive to reducing occupational infection of medical staff in hospitals, protecting the environment from pollution, and more in line with hygiene requirements. In order to facilitate the scientific and rational treatment of contaminated medical devices, it is necessary to have a good understanding of the modern medical device disinfection and sterilization technology and its application and progress, as well as the shape and structure of medical devices, material classification and other special requirements for disinfection and sterilization treatment.


Classification of medical devices

The classification of medical equipment is to correctly use the medical cleaning brush for cleaning, scientifically and rationally select the disinfection and sterilization method, and ensure the disinfection and sterilization effect.


1. Highly dangerous items are essential items

(1) Refers to articles that need to penetrate the skin and mucous membranes, contact sterile human tissues and body fluids, or contact newborns and those with deficient immune function in clinical medical treatment.
(2) It mainly includes various surgical instruments, puncture instruments (syringes, puncture needles, acupuncture needles, etc.), blood transfusion instruments, sterile endoscopes (biopsy forceps for laparoscopes, arthroscopes, amniotic fluid mirrors, and other endoscopes), Various internal catheters (cardiac catheters, venous catheters, various imaging catheters, visceral drainage catheters), internal implants (artificial organs, implanted drugs, etc.), cardiopulmonary oxygenation machines, surgical isolation caps, sterile towel sheets, Surgical gloves, ICU ward supplies, and neonatal supplies, etc.
(3) Highly dangerous items must be sterilized.


2. Moderately dangerous goods or semi-critical goods

(1) Refers to those items that only touch the intact skin and mucous membranes of the human body.
(2) Mainly include common endoscopes (gastroscope, colonoscope, bronchoscope, urethroscope, and other endoscopes that contact the body cavity), respiratory anesthesia devices, membrane dialyzer, infant isolation suit, infant incubator, oral diagnostic equipment, thermometer Wait
(3) Moderately dangerous items must be strictly sterilized. According to the modern sterilization point of view, they should be sterilized by thermal sterilization methods or high-efficiency chemical disinfectants.


3. Low-risk items are non-critical items

(1) Refers to those items that do not directly touch the patient or only touch the normal skin of the patient.
(2) It mainly includes diagnosis and treatment equipment, bedding, ward furniture, indoor environment surface, stethoscope, diagnosis hammer, oxygen mask, humidifier pipeline, etc.
(3) Low-level dangerous goods are mainly cleaned, and disinfection is required only in the case of contamination or suspected contamination. For disinfection, chlorine-containing cleaning and disinfectant can be used according to the situation. It is not suitable to use a large amount of low-efficiency disinfectant in the hospital environment, so as to avoid the production of disinfectant-resistant strains in the environment.

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