World Science report () before the current in haemostasis is unsatisfactory, the recent Ellis · Ben, and other experts of two high-tech hemostatic effect by the new Act confirms that the application of the human demoralization
"Surgeons in half the time on the operating table are used in the hemostasis. "As MIT's Department of brain and cognitive sciences expert Ellis · Ben said, the bleeding will in a short period of time claimed the lives of people, although the hemostatic forceps, cauterizing a wound, contraction of blood vessels, and other drugs are present, but the Haemostasis is unsatisfactory. Recent Ellis · Ben, and other experts of two high-tech hemostatic effect by the new Act confirms that the application of the human demoralization.
The birth of the person that they will not only change the surgery process, but also on human medicine development play a crucial role.
Nano-fiber, hemostasis in just 15 seconds
Nano-peptide protein fiber was just being used as a hamster brain cells to do the repair, scientists have discovered in the course of the experiment it magic hemostatic effect. In October, the United States at the Massachusetts Institute of technology and the University of Hong Kong Faculty of experts in collaborative research, found that the Nano protein fiber liquid can quickly stop the bleeding.
This liquid is mainly composed by peptide, contact to cuts, will self aggregation into a protective transparent gel, like barrier closed wound, so as to achieve the hemostatic effect. At present, scientists have found in a range of mammals, from the rat started test to the test of pigs, the organs and tissues including the brain, skin, liver, spinal cord, leg artery and etc. "It's effect very quickly," Ellis · Ben said, "even if the animals have taken the drug diluted blood, this liquid, it is still possible for 15 seconds to stop the loss of blood. "Because this nano coagulation protein fiber on the cut is transparent, so the operation without removing it, avoiding the possibility of contamination of wounds, which its future in aseptic conditions for operation of offers. In addition, Nano-peptide protein fiber weeks in organisms automatically degradation as a normal amino acid, is the surrounding cells absorb, non-toxic, non-side-effects, but also do not cause the body there is usually of rejection. Compared to the current military Hemostatic agent on common, this liquid with the advantage that no matter how deep the wound or how strange shape, have no effect on its results. According to Ellis · Ben said, they have been published on the Internet, this new and ready to send the details of the results published in the December of the Nano-medical science magazine.
However, let scientists puzzle that they have no way of knowing this kind of substances in organisms is how to play the role of the magic, because the most basic principle of hemostasis is to make the cut into blocks of blood clots, Nano-peptide protein fiber but this is not the case. Therefore, Ellis · Ben conservative estimated this liquid really applied in clinical treatment of patients with at least 3 years, and first used in the battlefield and traffic accidents in first aid.
Although everything is not yet upon us, many surgeons have already expressed an interest. United States Beth Israel Deaconess Medical Center in gastrointestinal diseases Director doctor Orem · check too, just very promising Nano protein fibers in the treatment of gastrointestinal bleeding at the time of application, he excitedly said: "this is exciting discovery, we can use the simplest method to stop bleeding. ”
Ultrasonic tourniquet, battlefield emergency new weapon
Its shape is like a shirt cuffs flanging, once the bleeding, it tied the wounded limbs, in a few seconds of blood will be stopped – this is the depth of the ultrasonic tourniquet, initials DBAC, United States, the Pentagon has allocated $ 5100, dedicated to the development of this project.
New York Institute of Philips ultrasonic imaging and therapy expert Michael · Pasi Lei said: "according to the United States a report by the Pentagon, hemorrhage damage is caused soldiers on the battlefield the leading cause of death. "The United States Defense Advanced research projects Agency was organized by the United States National Institute of the class to complete this project and look forward to 4 years into military applications.
"Ultrasonic tourniquet's main role is to gain time, reduce the amount of bleeding. "The University of Washington's applied physics laboratory ultrasonic industrial medicine research center of Lawrence · Qom in this field for ten years of experience, he believed that" rapid hemostasis in ultrasonic, doctors have enough time to use a better device for a thorough treatment. ”
Ultrasonic tourniquet is mainly composed of ultrasonic imaging sensors and sensor with two parts, it has become the battlefield of the new weapon, heal depends on its core technology — high-intensity focused ultrasound, or automatically HIFU. Once tied bleeding limb, tourniquet ultrasonic imaging sensors according to the body's blood vessels automatically detect the location of the wounds on the body. And then by treating the sensor frequency emission automatic focusing to confirm the location of the wound and then given HIFU, wound discharge of blood in a few seconds the instantaneous condense into blocks. At the same time, HIFU this technique in the treatment of cancer clinical trials also has excellent performance.
Although ultrasonic tourniquet human physiological use feasibility has been sufficiently proved that, but the battle is far from the laboratory for severe and complicated. Therefore, to plunge into the military field applications, ultrasonic tourniquet also must pass a temperature, dust, noise, moisture affects a series of rigorous tests.
No comments:
Post a Comment