pushing to build a better bandage - highly absorbent
Brian libbymarch 4,2003 all the emphasis on technology from the US armed forces until recently, there has been little progress in bandaging the wounds of soldiers for hundreds of years.
"If we compare dressing in civil war with dressing five years ago," Lt said . "Col.
Anthony posatiri, a doctor at the Army Institute of surgery, said, "it's really about the same.
"But now the military says they may have some new products that can save thousands of soldiers who have so far bled to death on the battlefield waiting for treatment.
Three products are investigating the potential size-
One is clothing developed by the Red Cross for decades.
The other is a granular substance called a fast clot that can be poured into a wound.
Third, probably the most promising is the bleeding bandage approved by the Food and Drug Administration on November, 18 months after the discovery.
The bandage is made from shrimp cells and is developed by an organization in Oregon that specializes in lasers. Dr. advertising
Kenton Gregory, head of Oregon Medical Laser Center in suburban Portland, is a chemical engineer and doctor specializing in the development of biological materials, especially alternative tissues for natural proteins, and the use of lasers to treat diseases such as cancer and heart disease. Dr.
Two years ago Gregory and his colleagues were asked to address the military's long-standing desire to find better bandages.
We tested all the things we could test"Gregory said.
He and his team checked many patented products and most commercial bandages.
For example, the bandage being developed by the Red Cross to extract the coagulation protein from human blood and use its coagulation to speed up the process.
The technology has not yet been approved by F. D. A. There are shortcomings.
For example, it can trigger an allergic reaction, which depends on the fact that it has-
The blood supply is insufficient and so far it has proved too brittle for a durable bandage.
Bandage developed by doctor
They said Gregory and his team solved many of the problems in the Red Cross bandage.
On the battlefield, bleeding is the main cause of death, and the use of this dressing made of high-absorbent diced sugar can save thousands of lives.
As described in the January Journal of Trauma, the diced sugar bandage is extracted from the substance, which is a biodegradable carbohydrate that exists in countless animals.
The second one-a couple of sugarmost-
In addition to cellulose, the common substance in biomass on Earth is also a multi-sugar, not a protein.
Therefore, it does not cause an allergic reaction.
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Although the chemical structure of the sugar is almost the same as that of cellulose, it is a polysugar body with positive electricity.
When paired with negative electricity on the outer membrane of red blood cells, the opposition attracts, doctor. Gregory said.
Therefore, the formation of blood clots has nothing to do with the normal coagulation process of the body.
Colonel Pusateri of the Army Research Institute believes that the key to the diced sugar bandage is its adhesive quality,
Gregory insists that the bandage is actually capable of making its own clot, even among people with anemia.
No matter how it is done, the diced sugar is bleeding more than it was meant to eat.
In its own test, the force successfully stopped huge internal bleeding and reported its subjects (
Pig with torn liver)
Although this dressing was originally used for external bleeding, the memory survived at least at the specified time.
This persistence provides more time for patients to reach the treatment center.
It has long been known for its coagulation capacity, but has never been made into a reliable product.
"You can control the minimum bleeding with a few ding sugar, but no one can make a durable bandage to control what we call the type of bleeding," the doctor said . "
Bill Wiesmann is the developer of bandages and head of care for former combat casualties in the Army. Dr. advertising
Gregory said that his team's task is to create a "negative-
50, the equivalent of the Arctic, plus 140, Sahara, "he added," I decided you had to be able to drive a Hummer on it.
"The impact of this technology may be far beyond that of the armed forces.
Bleeding is also the main cause of death in trauma cases in civilians, which account for the vast majority of the cost of surgery
The room of the trauma patient died.
For example, a neurosurgeon asked for a bandage in advance for surgery to remove tangled blood vessels in the brain, which has a high risk of bleeding death. Dr.
Gregory and his colleagues set up a company called HemCon to produce bandages for the army, and they expect to start commercial production for civilian hospitals in the summer or fall.
At present, the Army has ordered 20,000 bandages.
"There's something like 70 million E. R.
Every year due to bleeding
Said Colonel posatiri.
This is a huge problem.
After all, everyone is bleeding.
"We are constantly improving the quality of text archives.
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A version of this article appears on the national F00007 page in March 4, 2003, with the title: Push to make better bandages.