I also thank my teacher for their constant support and technical help during the work. A large amount of textile products are used by the medical contact persons and in the hospitals. Each of the organizations has its own autoclave facility where they sterilized their gauges and bandages.
The sterilization procedure was investigated and sterilized gauze samples were collected from each organization and subjected to microbiological testing. Medical textiles are one of the fastest growing sectors of the global technical textile industry. At the end of the paper there is a conclusion and table summarizing the common sterilization methods.
CHAPTER-2
LITERATURE SURVEY
- Pro-tech (Protective textiles)
- Agro-tech (agro-textiles)
- Mobil-tech (automotive and aerospace textiles)
- Build-tech (construction textiles)
- Cloth-tech (clothing textiles)
- Lift-tech (lifting textiles)
- Geo-tech (geo-textiles)
- Home-tech (domestic textiles)
- Indu-tech (industrial textiles)
- Mobil-tech (textiles used in transport)
- Oeko-tech or eco-tech (environmentally friendly textiles)
- Pack-tech (packaging textiles)
- Sport-tech (sports textiles)
- alternative spelling
Today, the most widespread technical textile materials are used in filter clothing, furniture, hygiene medicine and building materials. The classification developed by Tec textile, the Messes Frankfurt exhibition is widely used in Europe, North America and Asia. Carbon composites are mostly used in the manufacture of aircraft parts, while carbon fiber is used in the manufacture of taller tires.
Textiles used in construction - concrete reinforcement, facade foundation systems, interior construction, insulation, insulating materials, air conditioning, noise prevention, visual protection, sun protection, building security. The fabric used in it should have good strength, durability, low moisture absorption and thickness. Textiles used in domestic environments - interior decoration and furniture, carpets, sun protection, cushioning materials, fireproofing, floor and wall coverings, textile reinforced structures/equipment.
Specific areas of application
Medical textile
- Constituent element of medical textile products:-
- Characteristics of materials for medical use The major requirements for biomedical polymers
- Fibers used for medical and healthcare application
- Classification of medical textiles
With the development of new fibers and production technologies for yarns and fabrics, new fields of application of medical textiles have been identified. Among such developments, we can count the development of medical textiles, which are truly aimed at turning the painful days of patients into comfortable days. Depending on the application, the main requirements for medical textiles are absorbency, strength, flexibility, softness and sometimes bioability or biodegradability.
A number of crucial issues regarding medical products in general and health and hygiene products in particular have been identified and discussed among clinicians, environmentalists, pharmaceutical companies, etc. An important area of textiles is the health and hygiene sector among other medical applications. The range of products for health care and hygiene is large, but they are typically used either in the operating room or in the hospital wards for hygiene, care and safety for staff and patients.
Extracorporeal devices
It must be completely impermeable to bacteria and also absorbent to body perspiration and wound secretions. Cloths and wipes are made from tissue paper or non-woven bonded fabrics, which can be infused with an antiseptic finish. They absorb up to 50 times their mass of water, while conventional wood pulp and cotton linter absorbents absorb approximately 6 times their mass of water.
Superabsorbent fibers offer an advantage over superabsorbent powders because of their physical shape or dimensions, not their chemical structure. This is due to the small diameter of the fibers (≈ 30μ), which gives a very large surface area for contact with the liquid.
Implantable materials
- Sterilization of medical textile
- Sterilization vs. Disinfection
- Common sterilization methods
- common chemical sterilization
- common radiation sterilization
- other sterilization methods
- other radiation sterilization
Reliable sterilization depends on the contact of the sterilizing agent with all surfaces of the object to be sterilized. The choice of means for achieving sterility depends mainly on the nature of the object you want to sterilize. Free radicals of hydrogen peroxide in the cloud interact with cell membranes, enzymes or nucleic acids and thus disrupt the vital functions of microorganisms.
Cycle time can be up to 60 minutes depending on chamber size or load. The product is exposed to radiation for 10 to 20 hours, depending on the strength of the source. The time for destruction of the most resistant bacterial spore is now reduced to around 15 minutes.
The vial is placed in the center of the material to be sterilized and autoclaved. This machine sucks air from the sterilization chamber at the beginning of the cycle. At the end of the cycle, a vacuum pump operates to remove the steam and dry the load.
Many surgical instruments are not designed to withstand the prolonged heat and humidity of the steam sterilization process. The hydrogen peroxide diffuses throughout the chamber, surrounds the objects to be sterilized, and begins the inactivation of microorganisms. It uses steris 20 sterile concentrate, which combines peracetic acid, an alchemical biocide and a proprietary anti-corrosion formulation to kill microorganisms at low temperature.[7] the process takes place at a temperature of 50-56°c.
The product to be sterilized is exposed to radiation for 10 to 20 hours depending on the strength of the source. On the other hand, steris corporation's other product, steris system 1 is a portable tabletop system that uses peracetic acid as a sterilant and it is used to sterilize equipment just before use. The Vhp system is relatively new (on the market for a year) and has not yet been widely used in medical sterilization applications. The cycle time can be up to 60 minutes depending on the size of the chamber or the amount of objects to be sterilized.[3].
E-beam radiation
- continuous sterilization
- cosmetics sterilization
- quality assurance
High steam demand in a shorter period of time than the batch Media concentration becomes diluted due to steam condensation Since the steam is actually distributed in the media, the steam must be clean to avoid contamination. UHT infusion involves heating products very quickly from 20°c to 150°c with pure steam, holding the product at that temperature for a few seconds and cooling it to 30°C very quickly. This treatment applies to end products and equipment can be easily installed between existing process tanks and filling machines.
But more and more consumers are concerned about possible health effects of preservatives such as parabens in cosmetics. The product must then be filled in adequate packaging to maintain sterility even after use by the consumer. The spx innovation center operates several UHT pilot plants capable of running all major UHT systems.
Sterilization is necessary for the destruction or complete removal of all microorganisms (including bacteria, viruses, fungi and spore-forming and non-spore-forming protozoa) that may contaminate pharmaceuticals or other materials and thereby constitute a health hazard. Since the achievement of an absolute state of sterility cannot be demonstrated, the sterility of a pharmaceutical preparation can only be determined in terms of probability. The effectiveness of any sterilization process will depend on the nature of the product, the degree and type of any contamination and the conditions under which the final product was prepared.
Classical sterilization techniques using saturated steam under pressure or hot air are the most reliable and should be used whenever possible. Materials and products that have been sterilized by one of the above procedures are transferred to previously sterilized containers and sealed, both operations being performed under controlled aseptic conditions. Regardless of the chosen sterilization method, the procedure must be validated for each type of product or material, both in terms of ensuring sterility and in order to ensure that no harmful changes have occurred in the product.
To ensure that instruments and supplies are sterile when in use, monitoring the sterilization process is essential.
Administrative monitoring
Biological indicators
The following table summarizes the results
Therefore, for these substances test methods that will help characterize products as blood resistant, blood safe or viral proof. This is a short list of cleaning methods that can conceivably "kill germs" but do not achieve sterilization. skin) can kill or remove bacteria and viruses, but not all.
CHAPTER-3
- steam sterilization
- study about autoclave sterilization
- Sterilization using autoclave inJahurul islam medical college and hospital, bajitpur, kishoregonj
- Holy Family Red Crescent Medical College, Dhaka
- Microbiological test (sample-2)
- Mymensingh medical college, Mymensingh
- microbiological test (sample-3)
- A common test for sterilization practiced in the autoclave room
Sterilization is a process that aims to kill all microorganisms and is the highest level of microbial destruction. The steam autoclave is the oldest, safest and most cost-effective method of sterilization in the medical device industry. The sterilization period depends on the temperature and the size of the load and can vary from 20-60 minutes.
In the steam autoclave process, microorganisms are killed by heat, and this is accelerated by the addition of moisture. Jahurul Islam medical college and hospital is the largest and first privet medical college in Bangladesh. In Jahurul Islam medical college and hospital all surgical products are in different boxes according to their type.
In a semi-automatic machine, the water level, temperature and time must be maintained manually, but the fully automatic machine takes and does everything automatically. After the sample was collected from the autoclave, it was sent to Mymensigh Medical University for microbiological examination. Holy Family Red Crescent Medical College has come a long way in the past 12 years and has gained a great reputation among the medical colleges in the country since its inception in the year 2000.
In Holy Family Red Crescent Medical College, gloves and cloths are sterilized separately using different temperature and pressure. Mymensingh Medical College is one of the oldest, reputed and brilliant institutes in Bangladesh since its establishment in 1962. Mymensingh Medical College is a Government Medical College administered by the Ministry of Health and Family Welfare.
There are many autoclave rooms in Mymensingh medical college. Whichever room I go into, there are 3 machines and they are all fully automatic. At the medical university of Mymensingh, all products are sterilized together.
Process details
Name of hospital Jahurul islam
JIMEC
Sample of HFRMC
Sample of MMC
Time 24-48 hours 24-48 hours 24-48 hours Pathogenic
CHAPTER-4
DISCUSSION
RESULTS
Chapter-4: discussion of results
- importance of sterilization
- Awareness of the medical personals
- Methods of sterilization
- Sterilization using autoclave
- Microbiological reports of the sterilized samples
- Use of sterilization indicator tape
To see the performance of the autoclave sterilization, sterilized samples were collected from all the three organizations and then all the samples were tested in the microbiology laboratory of Mymensingh Medical College hospitals. The results are shown in figures 21, 28 and 33 showing that the sterilization was perfect in all three places. The microbiological test to see the performance of sterilization is complicated, extensive and time consuming.
Therefore, the hospital authority uses an indicator strip similar to conventional litmus paper used to test acidity and alkalinity. During autoclaving, a small amount of this tape is wrapped around one of the gauze samples. Looking at the indicator strip, technicians can understand whether the gauze is sterilized or not.
CHAPTER-5
CONCLUSIONS
Conclusions
