Performance requirements for medical protective clothing
Nov 26, 2022
Protective property is the most important performance requirement of medical protective clothing, mainly including liquid barrier, microbial barrier and particle barrier.
Liquid barrier: The medical protective clothing should be able to prevent the penetration of water, blood, alcohol and other liquids, and have a hydrophobicity of more than 4 levels, so as to avoid contaminating clothing and human body. Avoid infecting the virus carried by the patient's blood, body fluid and other secretions to the medical staff during the operation.
Microbial barrier: including the barrier to bacteria and viruses. The barrier to bacteria is mainly to prevent the contact transmission (and reverse transmission) of the medical staff to the patient's surgical wound during the operation. The isolation of viruses is mainly to prevent cross infection between doctors and patients caused by viruses carried by medical staff when they contact patients' blood and body fluids.
Particle material barrier: prevent viruses transmitted through the air from being inhaled in the form of aerosols or attached to the skin surface to be absorbed by the human body.
Comfort
Comfort includes air permeability, water vapor permeability, drapability, quality, surface thickness, electrostatic performance, color, reflective property, odor, skin sensitization, etc.
The most important is the breathability and moisture permeability. In order to enhance the protective effect, the protective clothing fabric is usually laminated or laminated, resulting in thick, poor breathability and moisture permeability. Long term wear is not conducive to sweat and heat removal.
The anti-static requirement is to prevent the static electricity in the operating room from causing the operating suit to absorb a large amount of dust and bacteria, which is harmful to the patient's wound, and to prevent the spark generated by static electricity from detonating the volatile gas in the operating room and affecting the accuracy of precision instruments.
Physical and mechanical properties
The physical and mechanical properties mainly refer to the tear resistance, puncture resistance, wear resistance and other capabilities of medical protective clothing materials. The tear and puncture area shall be avoided to provide a channel for the spread of bacteria and viruses, and the abrasion resistance area can prevent the falling of flocs to provide a place for the propagation of bacteria and viruses.
Other performance
In addition to the properties listed above, protective clothing should also have disinfection resistance, good color fastness to washing, anti shrinking, non combustion, non-toxic and non irritating properties, and harmless to skin.
