2024年9月20日星期五

How to Use a Tactical Tourniquet in Emergency Situations

 The tactical tourniquet is now an indispensable tool in both military and civilian emergency medicine. Designed to regulate severe bleeding from extremity injuries, the tactical tourniquet is lightweight, durable, and an easy task to deploy, which makes it crucial in life-or-death situations. Initially developed for military use, where combat medics needed a trusted method to prevent blood loss on the battlefield, the tactical tourniquet has since evolved into an essential part of civilian medical kits, police force gear, and emergency response tools. Its design allows users to utilize it quickly, often with only one hand, which will be essential when seconds count. With bleeding identified as one of the primary factors behind preventable death in trauma situations, tactical tourniquets have proven to save lots of countless lives by preventing hemorrhaging before patients reach definitive medical care.


The current tactical tourniquet represents the culmination of years of advancements in military medicine. The first versions, utilized in wars such as the Civil War and World War I, were rudimentary and often ineffective, sometimes causing more harm than good because of improper use or design flaws. It wasn't before 1990s and early 2000s that significant progress was made in refining the design of tourniquets for tactical use. The U.S. military, in collaboration with medical experts, developed more user-friendly and effective models just like the Combat Application Tourniquet (CAT) and the Special Operations Forces Tactical Tourniquet (SOFTT). These units are now popular, not only in combat zones but additionally by first responders and civilians. The evolution of the tools has made them more efficient in controlling bleeding, ultimately causing improved survival rates in trauma cases across various settings  Tactical Medical Training .


While tactical tourniquets were initially created for military use, their application has expanded to civilian settings. Police officers, EMTs, and even ordinary citizens now carry these life-saving devices inside their emergency kits. In situations like active shooter events, natural disasters, or car accidents, tactical tourniquets have proven invaluable for controlling massive hemorrhaging before professional medical help arrives. Their portability and ease of use make them a practical addition to any medical kit. In fact, public awareness campaigns like "Stop the Bleed" have now been launched to educate civilians on the best way to apply tourniquets properly in emergencies. As more individuals become trained in the use of tactical tourniquets, the odds of survival in mass casualty or isolated trauma situations increase significantly.


Despite their proven effectiveness, tactical tourniquets are sometimes surrounded by myths and misconceptions. One common misconception is that utilizing a tourniquet will automatically result in the increased loss of a limb because of lack of blood flow. However, modern research has shown that properly applied tactical tourniquets can remain in area for hours without causing permanent harm to the limb, provided they're used correctly and the individual receives timely medical care. Another myth is that tactical tourniquets should only be properly used as a last resort. In fact, experts advise applying a tourniquet the moment severe, uncontrollable bleeding is identified, as delay can be fatal. Training and proper education are crucial in dispelling these myths, ensuring that individuals feel confident in utilizing a tactical tourniquet when needed.


As technology advances, so too does the style of tactical tourniquets. Modern tourniquets are now smaller sized, durable, and efficient than their predecessors. Some recent innovations include self-locking mechanisms, improved materials that may withstand harsh environments, and intuitive designs that allow for quicker application in high-stress situations. In addition, research into hemorrhage control continues to inform the development of next-generation tourniquets that could further reduce blood loss and increase survival rates. The integration of sensors and other smart technology may also be coming, offering real-time feedback on the effectiveness of tourniquet placement and pressure. As tactical tourniquets are more sophisticated, they will likely remain a cornerstone of both military and civilian emergency medical care, saving lives in an increasingly variety of scenarios.

2018年10月18日星期四

Is the phone charging available when it is available? Still recharge after less than 10%, you have been wrong all the time.

Is the phone charging 20% recharged, or is it charged as long as it is available? How is it better? Let me talk about myself, I am a patient with obsessive-compulsive disorder. If the mobile phone's power is less than 50%, I will lose my sense of security. I will charge the charger. So how is it better to charge?

Everyone only knows that the mobile phone is a lithium battery, but it is accurate to say that the battery commonly used in mobile phones is a lithium polymer battery which is a polymer lithium battery.

It is also a kind of lithium ion battery. In shape, the lithium polymer battery has ultra-thin characteristics, and can be made into a battery of any shape and capacity in accordance with the needs of various products. The battery can reach a minimum thickness of 0.5mm. The most important feature is that there is no memory effect! and so:

The calculation method of lithium battery is calculated in cycles! That is to say, when the charging is 50%, it is not a charging cycle. A battery charge and discharge cycle must be formed after the entire battery has completed one cycle. This means that the lithium battery can be unplugged at any time without worrying about this problem.

Although the number of charge and discharge cycles of the battery is fixed, it is another complete charge and discharge to calculate a cycle, that is, if you charge from 20% to 70%, you actually charge only 50% of a cycle. That is, it was only half a time. Based on this theory, lithium batteries can be recharged at any time without worrying about life. Taking the iPhone's battery as an example, after completing the discharge cycle of 500 charging boxes, the power will drop to 80% of the original battery capacity.

A few points to pay attention to the charging of the phone, remember

1. Make sure that your equipment is not over-tightened, which will cause the equipment to overheat and affect battery life.

2. Try not to play mobile games while charging. Playing mobile games will generate a lot of heat, and continuous consumption will affect battery life.

3. Overcharge, do not use the unofficial inferior charging head or charging cable, the charge exceeds the rated capacity of the battery, the mobile phone generally has a protection mechanism, after the battery is fully charged, the internal circuit of the mobile phone automatically disconnects the charging circuit, or the charging head has Protection device, poor quality can not be said.

4. The battery is over-discharged, and there is no electricity to charge quickly. Usually, when the battery is too low, it will automatically shut down. But if you restart, you will find that the phone still has power to use. Automatic shutdown is a kind of protection mechanism for manufacturers of mobile phone batteries. Over-discharge of the battery will cause serious damage to the battery life. Therefore, please charge when the battery is too low.

5. Use a charger with a high power to charge the battery, which will cause damage to the battery. For example, the original mobile phone is 3.5V, but with a 5V charging head, it will cause damage to the battery.

2017年11月14日星期二

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