When it comes to technology, there is always something going on and always something on its way out. The same has happened with battery powered bikes, these being an economical solution for all those who love riding their bike, but want something new for a change.
As you can tell from their name, battery powered bicycles are bicycles which work on rechargeable batteries of all kinds. There is no problem in finding the batteries you need on the market and there are also other advantages such bicycles have to offer. For instance, the pedalling with these bicycles is a lot easier because they work on electric motors, which make the rider’s job a lot easier. The motor of such a bicycle is powered by the rider pedalling and this is valid for all pedalling systems which use chain or friction drives and hub motors. Also, their motor can be started by using a throttle on the handlebar, this being the electric assist of an electric bicycle, the motor being regulated while the rider is pedalling.
A battery powered bicycle is a lot heavier than an ordinary bicycle, weighing almost twenty-five kilograms without the conversion kit attached in case there is a conversion kit, too, the bicycle weighs an extra nine kilograms. Of course, due to these details, an electric bike is a lot harder to transport, review of the trolling motor batteries but there are solutions for that, too.
The prices of such bicycles vary between five hundred dollars and three thousand dollars, but their characteristics are worth all that money, being a very good investment and a very good way to stay fit even if the effort you have to put in is less than the one you put in with regular bicycles. In fact, this is one of the things that many people have disagreed with, these bicycles offering riders the opportunity to relax more and work out less, doing half of the job for them.
Today’s medical application solutions are getting smaller, not in the sense of importance, but in size. Emergency medical equipment is decreasing in size in order to become portable and usable in the field before a patient ever reaches a hospital. On the spot treatment methods can help stabilize trauma patients and save lives.
For the armed services, field medicine is of critical importance. Soldiers do not have the benefit of full hospitals when they are in a battle zone; typically, they only have access to what medical personnel can carry on their backs or in a truck. Miniaturization has enabled medics to utilize more advanced equipment outside of hospitals to stabilize wounded soldiers and save lives. One particular component that has offered new breakthrough is compact, high torque DC gearmotors and DC micro-motors.
Let’s take a look at how these devices are implemented and used in real situations.
Fluid Infusion Needs
The first line of treatment for trauma patients is controlled fluid infusion, but conventional units are not suitable for field use. Standard infusion pumps deliver about 100mL of liquid per hour, but a wounded soldier experiencing trauma needs liquids much faster at a rate such as 100ml per minute.
Technology Based Medical Application Solutions
The solution for field equipment to provide rapid fluid infusion for trauma patients and wounded soldiers has to be a compact, low weight, battery operated unit that runs silently and no electronic signature. The basis of the infusion pump is a DC micro-motor. This battery operated, miniature high torque motor weighs in under a half of a pound and runs on six triple-A batteries for over 10 hours. These specifications are achieved through efficient operation.
The crux of the design is a unique cartridge set and disposable tube system. When one tube is being compressed, it stored potential energy. Once the tube is empty, that potential energy is recovered as the expansion of the empty tube boosts the action of rocking the yoke to the other side so that it can begin to compress the other tube. In this way, the function of using one infusion cartridge powers the second, doubling the overall flow with only a minimal increase in required power.
The Motor Solution
Of course, to deliver the infusion liquids in such a compact unit, a high torque motor is needed. To find the appropriate battery powered device, a DC micro-motor is used to fit the bill. In only a 13mm DC micro-motor with a 76:1 gearhead reduction ratio, the infusion pump is able to deliver a sustained 100mL per min or a quick 250mL single burst for critical situations.
The finished Power Infuser product is a base pump unit topped with a disposable cartridge. The unit weighs in less than 10 ounces and measures 5 inches by 4 inches by 2.3 inches. The infuser is able to meet a wide range of criteria and deliver high volume infusions in a compact battery operated unit. Thanks to miniaturized DC micro-motors, soldiers on the field have one more tool to ensure that they get home safely.