Original title: Interpretation of medical isolation clothing standard Guided reading "The epidemic came suddenly, and all kinds of protective equipment are
very tense!"! 'You Can wear it protective suit, and I can wear an isolation
suit! ' This is a report from Dahe Network. The report mentioned that in order
to save protective materials and ensure that every medical staff in the fever
clinic can wear protective suit every day, head nurse Xu Weina never wore
protective suit when she entered the fever clinic. She wore an isolation suit, a
mask and a round hat. This article interprets the relevant standards of medical
isolation clothing, and makes a simple comparison between isolation clothing and
protective suit. 1. What is a medical isolation suit? There is no national or
industry standard for medical isolation clothing. Medical isolation clothing is
defined in ASTM F3352-19 as protective clothing (apparel) used to protect
medical staff, visitors and patients from the transfer of microorganisms and
body fluids in the case of patient isolation. Medical gowns can also be used to
protect visitors in the medical environment. According to the Centers for
Disease Control and Prevention's Isolation Prevention Guidelines, medical
isolation gowns are worn to protect the arms and exposed body areas of
healthcare workers during surgery and patient care activities when contact with
clothing, blood, body fluids, secretions, and feces is anticipated. Medical
isolation gowns are widely used in intensive care units (ICU) of general
hospitals, infectious disease departments and infectious disease hospitals. At
present, there are two kinds of medical isolation gowns in clinical use:
disposable and non-disposable. Disposable medical isolation clothes are
expensive, and a large number of them will cause great waste. Non-disposable
medical isolation clothing has many problems: the collar, cuff and abdomen are
easy to be contaminated, which reduces the use time of medical isolation
clothing; the cuff, back and bottom have defects in design,3 Ply Disposable Protective Face Mask, which easily contaminate the work clothes of workers; the production material is not waterproof. Studies have
shown that there are many factors that cause nosocomial infection, among which
the direct contact route of infection is that medical staff and accompanying
personnel infect patients with their own pathogenic microorganisms or infectious
substances through contact transmission, while medical staff wearing medical
isolation clothing can effectively prevent and control the occurrence of
nosocomial infection. 2. What does the medical isolation suit isolate? Medical
gowns are specified in ASTM F3352-19 to protect healthcare workers, patients,
and visitors from blood, body fluids, and other potentially infectious
substances during patient care or patient treatment. The main emphasis here is
on blood and body fluids, and there is no mention of viruses transmitted through
the air, such as the novel coronavirus. "360 ° coverage" is specified in ASTM
F3352-19 to ensure at least complete coverage of the arms and the front, Full Body Disposable Coverall ,KN95 Face Mask with Five Layers, sides, and back of the body from the knees to the neck, excluding the neck, during exercise. We can see that the protective
range of medical isolation clothing is from the knee to the neck (excluding the
neck), rather than covering the whole body from head to foot, and the head,
neck, hands and feet are not within the protective range. Expand the full text
3. What is the difference between medical isolation clothing and protective
suit? Medical isolation clothing is a kind of protective equipment for medical
staff to avoid contamination by blood, body fluids and other infectious
substances, and also to protect patients from infection. Contact with patients
with infectious diseases after contact transmission, such as patients with
infectious diseases and patients infected with multi-drug resistant bacteria;
implement protective isolation for patients, such as patients with extensive
burns and patients with bone transplantation; prevent from being infected by
splashing of blood, body fluids, secretions and excretions of patients. In a
word, medical isolation clothing is used for patients with tight isolation,
contact isolation and protective isolation. Medical and nursing protective suit
are medical staff disposable protective articles worn by patients with
infectious diseases who are in contact with Class a or managed according to
Category A infectious disease. Contact with patients with infectious diseases
transmitted by air and droplet transmission may be splashed by patients'blood,
body fluids, secretions and excretions. But this kind of patient is not very
serious, just general infection. Fig. 1 Sample of Isolating Clothes (see AAMI
PB70-2012) Fig. 2 Physical object of medical isolation clothing Fig. 4 Photo of
one-piece protective suit 4. What are the levels of medical isolation clothing?
The core performance of medical isolation clothing is the barrier performance,
which conforms to the three levels specified in ANSI/AAMI PB 70. Table 1
Requirements for Barrier Properties and Physical Properties of Disposable and
Reusable Medical Gowns Performance Material Type Test Method AAMI PB 70 4 Grades
Level 1 Level 2 Level 3 Level 4 Barrier properties All AATCC 42 ≤ 4.5 G ≤ 1.0 G
≤ 1.0 G N/A All AATCC 127 N/A ≥ 20 cm ≥ 50 cm N/A All F16 71/F16 71M N/A Pass
Tensile strength All D5034 ≥ 30 N ≥ 30 N ≥ 30 n ≥ 30 n Tear Strength Woven
Nonwovens, Films, Nonwovens and Film Composites D5587 D5733 ≥ 10 N ≥ 10 N ≥ 10 N
Joint strength All D1683/D1683M ≥ 30 N ≥ 30 N ≥ 30 N According to ANSI/AAMI
PB70, the Acceptable Quality Level (AQL) is 4% and the Rejected Quality Level
(RQL) is 20%. 5. What are the design requirements for medical isolation
clothing? 5.1 Medical gowns shall be designed to meet the barrier performance
requirements of ANSI/AAMI PB70. 5.2 For medical gowns and other garments
intended for use in isolation applications, the critical area shall include the
entire garment, including seams, but excluding cuffs, skirts, and wraps, and
shall have a barrier property of at least Class 1. The manufacturer shall
provide for each critical area component 5.3 To ensure 360 ° coverage, medical
gowns, when worn in the correct size,free shipping disposable coverall, should be designed to ensure at least complete coverage of the arms and the front, sides and back of the body from the knees to
the neck (excluding the neck) during movement. 5.4 Medical gowns intended for
repeated use shall have a means of recording or marking the number of cycles, or
an area (or areas) on the medical gowns where the operator may use his own means
of recording or marking the number of cycles. The recording area shall be
visible and readable by the wearer. Source | China Institute of Standardization
website Author | Yu Gang Return to Sohu to see more Responsible Editor:. zjyuan-group.com
