The protective property is the most important performance requirement of medical protective clothing, mainly including liquid barrier, microbial barrier and particle material barrier.
Liquid barrier refers to that the medical protective clothing should be able to prevent the penetration of water, blood, alcohol and other liquids, with a hydrophobicity of more than 4 levels, so as to avoid contamination of clothes and human body. During the operation, the patient's blood, body fluid and other secretions should be avoided to transmit the virus to the medical staff.
Microbial isolation includes the isolation of bacteria and viruses. The main barrier to bacteria is to prevent the contact transmission (and Back-Propagation) of traditional Chinese medicine nurses to patients' surgical wounds during the operation. The main barrier to the virus is to prevent the cross infection between doctors and patients caused by the virus carried by medical staff when they contact the patient's blood and body fluid.
Particulate matter barrier refers to the prevention of air borne viruses from being inhaled or attached to the skin surface in the form of aerosols and absorbed by the human body.
Comfort includes air permeability, water vapor penetration, drape, quality, surface thickness, electrostatic performance, color, reflective, odor and skin sensitization. In order to enhance the protective effect, the protective clothing fabric is usually laminated or laminated, resulting in thick and poor air permeability and moisture permeability. Long-term wearing is not conducive to sweat and heat removal. The requirement of antistatic property is to prevent the static electricity in the operating room from causing the operation suit to absorb a lot of dust and bacteria, which is harmful to the wound of the patient, and to prevent the sparks generated by the static electricity from detonating the volatile gas in the operating room and affecting the accuracy of the precision instrument.
3. Physical and mechanical properties
The physical and mechanical properties mainly refer to the tear resistance, puncture resistance and wear resistance of medical protective clothing materials. Avoid tearing and puncturing places to provide channels for the spread of bacteria and viruses, and wear-resistant places can prevent falling flocs from providing places for the propagation of bacteria and viruses.
4. Other performance
In addition to the performance listed above, the medical protective clothing shall also have the performance of disinfection tolerance, good color fastness to washing, shrinkage prevention, non combustion supporting, non-toxic, non irritant, harmless to the skin, etc.