subject: The Increasing R & D Hot Liquid Bandage [print this page] Premixed liquid bandage Bandage is the amount the hospital one of the largest medical materials. Bandage from the cotton processed into cloth or sterile gauze and then made, but the stain used and the old bandages with the treatment is a difficult problem. With the strengthening of environmental awareness and consideration for energy-saving point of view, cotton bandages can no longer meet the clinical demand. In this situation, the new energy saving environmentally friendly "liquid bandage" came into being and the emerging 21st century a new type of health materials. Because it is military and civilian dual-use of new materials with wide application prospect and huge market growth in space, foreign material in the field of competing health development, and our academic health materials are also made to accelerate the development of liquid bandage to catch up with advanced level.
Demand for R & D field ambulance The concept of liquid bandages
began last century, the mid-80s. Foreign scholars was a natural polysaccharide?? Chitosan (ie chitosan) dissolved in acetic acid to obtain a gelatinous substance. This kind of jelly in the hands or body spray to form a protective film?? This is the liquid bandage looks like. It is reported that DuPont Based on this principle has also developed a "man-made skin."
Chitosan not only film role, more important, it belongs to the natural sugars to the human body is very safe and has excellent antibacterial effect. However, researchers later found that chitosan has some drawbacks: first, forming the clotting time is too long (needs 10 hours); second is membrane impermeable, easily peeling off. Therefore, the foreign use of chitosan as raw material, the process of liquid bandage once a standstill. Over the years, have researchers attempted to use a variety of cellulose esters, such as carboxymethyl cellulose (CMC), Hypromellose (HPMC) and other processing liquid bandage, but have not been successful.
Although the early development of liquid bandages are not satisfactory, but for the later development of useful work experience and learn. With the rapid development of life sciences and materials science advances into the 21st century, new liquid bandage developed Western countries have shown unprecedented enthusiasm. One of the most interest in developing health materials, liquid bandage category is the U.S. Army Medical Research Institute.
1999 years, the U.S. military has in Afghanistan, Iraq and other countries to fight, while the field is most in need of rescue wounded hemostatic material. Afghanistan, Iraq, guerrillas used to the way to placing roadside bombs against U.S. military patrol, when a bomb exploded, the soldiers are bombing the body with multiple injuries, while the traditional cotton bandage to stop bleeding is difficult to play a role, no longer suitable for modern guerrilla warfare needs. In this case, the researchers believe that the development of a convenient, fast solidification, with bleeding, sterilization, disinfection, prevention of wound infection and other advantages of the new type of liquid bandage promising to meet the requirements of modern battlefield ambulance.
Premixed liquid bandage U.S. Military Health
Lutger University Materials Research Center funded by the U.S. Army's Department of Development last year, listed in need of a suitable field called "GelSprayLiquidBandage" the true sense of the new liquid bandage products.
According to R & D personnel, the new type of liquid bandage by the two different kinds of liquid, use a special double-barreled syringe must be two different components through a needle pre-mixing and extrusion, and coating the wound above. The liquid bandage to more than ten seconds as a kind of solidified the role of the protective film to stop bleeding, which has antibacterial, anti-inflammatory and pain relief, prevent infection, stop the wound bleeding and other effects, it is easy to use, better than traditional cotton bandages. The liquid bandage new products this year has been the U.S. Army and the U.S. Food and Drug Administration (FDA) clearance to market.
Although Lutger University researchers did not disclose the development of liquid bandages are two main materials used in the name, but according to the American Red Cross medical experts speculate, Lutger University researchers developed a new type of liquid bandage may use a fiber fibrinogen and thrombin.
