One twenty-cut respirator. The US reduces the consumption of sterilization aids

Respirators for nurses are shortcomings in many parts of the world. In the United States, therefore, the series published a procedure for sterilizing these devices and handcuffs in the future. In Czech, the situation is a bit confusing: hospitals are allowed to sterilize, but it is not clear how to proceed.

The lack of protective equipment is constantly talked about this year. Looking at the salt, how many of them are needed during the covid-19 epidemic, there is nothing surprising about that. A few weeks ago, the US Department of Health before Congress said the country would need about 3.5 billion respirators in various weeks in the event of an outbreak.

Under normal circumstances, these are usually single-use products. Their consumption is great, the material is small, so the rules are adapted to adapt to extraordinary circumstances. In the United States, the Centers for Disease Control (CDC) has recommended several approaches to the problem of respiratory deficiency.

In the USA, as in Europe, they are recommended for nurses respirators roughly corresponding to the FFP2 category according to the American classification N95. The CDC prefers to recommend that each healthcare professional have several respirators that could be ventilated for several days at a time, and that each of them has used a vector. (Recall that the SARS-CoV-2 virus, according to currently available data, should not survive on similar materials for less than three days.)

If this is not possible and the respirators must be moved faster from hunter to hunter, the CDC recognizes the ability to sterilize respirators and use them for all medical staff. Of course, this does not apply to dirt, painted or otherwise humiliated aids.

It is definitely not possible for the test results to be full. They are recommended to be based largely on experiments that have been conducted in the past for crises, such as pandemic scenes. (For example, one was conducted by the FDA in 2016 in collaboration with manufacturers.) Thus, the experiments were not performed with the SARS-CoV-2 virus, but with other microorganisms, but they are still portable: killing this virus should not be nemon, so it should not be destroyed. respirator.

So far, only the use of an autoclave (ie, essentially a sterilized device) of one type for certain types of masks has been definitively approved (see FDA approval). Hydrogen peroxide vapor sterilization is required.

The CDC states that one old experiment, for example, showed that the use of hydrogen peroxide vapor did not reduce the activity of the tested type of respirator even after fifty repetitions, but in practice it approved the number of repetitions. Selected types of respirators can be sterilized in this manner according to FDA recommendations and 20 times, if not damaged. Some medical facilities have the ability to recycle and print thousands of respirators daily, see Boston’s example.

The CDC opened two further experiments and trials. For the basis of previous long results, both sterilization of the current (for some types) and, for example, intense ultraviolet light (this applies to professional devices, a domestic UV lamp, for example) are considered promising.

How is it in Esk

The consumption of respirators in the Czech Republic is, of course, not in the USA, but it is definitely not negligible. According to estimates, it is in the millions of tdn, said Jan Hamek on Twitter.

According to information on the website of the Ministry of Health (put on April 8), respirators are the most expensive among the ordered medical devices. So far, the state has ordered more than 40 million pieces for a total price exceeding 4.5 billion crowns (32 million FFP2 standards for about 2.9 billion crowns and 8.4 million FFP3 standards for less than 1.7 billion crowns). Such an amount should cover the consumption of the Czech Republic for about two and three months.

Sterilization should in principle be able to dream of consumption in our country, think Martin Trojan from the Czech Republic is represented by the manufacturer of Moldex protective equipment. He says he can’t decide to speak for all manufacturers, but many of them, including his company, have worked on the process: According to our experts, the most acceptable way to disinfect respirators and Moldex filters using ethylene oxide sterilization.

Most of us have never heard of it, but it is a relatively common sterilized method, which is used in industry and some large hospitals. The CDC also considers it very promising, but recommends it in the meantime, but only gave it research.

However, the situation in the Czech Republic is somewhat more confusing than in the USA. The Ministry of Health has issued an instruction according to which hospitals may sterilize the use of respirators, especially FFP3 respirators, for the needs of their healthcare workers using sterilized methods, for repeated use. It is not clear from the document which sterilized methods are dark. (We have submitted a statement to the Ministry of Health, or we will add it to the article if necessary.)

Large hospitals approached by the editorial staff respirators in any case do not sterilize a huge consumption even with a huge consumption. Speaking of St. Anny in Brno Dana Lipovsk stated: We do not sterilize respirators, we do not even have it in full. It is necessary that there have not yet been developed procedures and recommendations on how to sterilize accurate respirators. Respiratory is not sterilized even by the largest medical facility in the Czech Republic, Motol Hospital.

Some organizations have such procedures in place. The fire brigade has emergency regulations for sterilization and reuse of respirators, said Nicole Studen. Emphasizes that this is a temporary measure: The procedure pays for the period of emergency, or until there will not be enough respirtor new. The exact methodology is not public, according to our information, this is a technique suitable for field conditions, which does not require special equipment, only relatively common and available chemicals.

The procedure was based on the state of nuclear, chemical and biological protection (SJCHBO) and according to it, one respirator should be used for a maximum of three times. Experiments have shown that even after these uses there is no significant loss of the ability to catch small streams. The decline in ability should not exceed ten percent.

According to our information, the state of health and tests of the creation of new procedures for reliable and gentle sterilization of respirators work, while the recommended procedure according to our information has not been published.

On its pages, it published a translation of this darkness, compiled by the European Center for Disease Control (ECDC). Sterilization of direct hydrogen peroxide is considered to be the name of the process, the possibilities of which are further investigated. A number of at least other methods that are to prolong the life of the respirator, such as noen rouky and the obituary ttu dog respirator.

Correction: The article incorrectly stated that the procedure for the use of water jet sterilization has been approved in the USA. In fact, it is a sterilization with vodka peroxide vapor. We apologize for the mistake.