A Comparative Study Of Prosthetics

Prosthesis is a term used for replacing a human body part which has been damaged or cut accidently with an artificial one. Earliest users of prosthesis were Ancient Egyptians. Due to war injuries they used prosthetic limbs to look complete. A prosthetic toe was found on a 3000 years old mummy. An ancient Greek historian

Many veterans are missing major limbs, and are very handicapped making work and everyday life a huge struggle. There are prosthetic legs and arms that can be used, but they often take a long time to learn, and are very costly. In a recent interview with NBC News, a veteran by the name of Mike Kacer explains how the government spent $117,000 providing him with prosthetic arms over the last five years, and he doesn’t even like to use them. "I could actually tie the shoe faster without the prosthesis," Kacer says, and he’s not the only one that feels this way. Many other veterans using these prosthetic limbs eventually abandon them due to painful, unreliable and hard to use reasons. “Of the roughly 1,600 veterans who have suffered major limb losses from the wars in Iraq and Afghanistan, about 319 have faced amputations of some part of their arms.” (NBC News). Not only is that a lot of money spent on prosthetics that are hard to use, painful, and eventually abandoned, arms rather than legs are a lot harder to use according to research by Gary Berke, a Stanford University instructor who operates a private clinic providing prosthetics. "Walking is relatively straightforward," Berke said. Artificial legs essentially can do everything that real ones do. Artificial arms, however, are not nearly as adept as the real ones. "We're behind the eight ball in terms of

Prosthetics has always been part of most of our history, and it has come a long way since then. Forms of prosthetics date way back to the Civil War, and has made a lot of progress throughout the years. During the Civil War, many soldiers would have to be amputated everyday to save their lives. For example, in the text “I Will Not Get Out of Heart Yet,” it states that “Soldiers shot in the arm or leg on the battlefield were highly likely to develop potentially fatal infections, and the only way to prevent a painful death was to cut off the damaged body part.” Despite this fact, prosthetics were extremely uncomfortable to wear and were considered “crude contraptions” and “ were usually made of wood or steel --- that were awkward and painful to wear.” Many soldiers did not like having prosthetic limbs, as they were uncomfortable to wear and awkward to move around with.

A major impetus to improving artificial limbs started when the United States encouraged companies to improve prosthetics instead of munitions (Norton, 2007). The combination of lighter materials and robotics assist has created huge advancements in functionality and has dramatically improved quality of life and potential for independent living. Even with the advancement of these limbs, the basic mechanical principals are still the same. Modern times allow for many different types of limbs to be created. Limbs can be created to match skin tone, freckles and fingerprints. There are three many ways a limb can be made to move. The first is attaching the limb to a moving body part to act as a gear shifter. Another variation is a motor attached and the person can switch modes by a mechanical toggle shift. The most advanced movement is the myoelectric capability. This is when electrodes are placed on the muscles of the residual limb. When contracted the arm will move according to which electrode fired. A microprocessor can also be attached to learn exactly how the person walks (Clements, 2008). Modern prosthetics offer valuable life skills, yet are very

Prosthetic limbs have been around for centuries, but what is one thing they all have in common? They have all been a nuisance. In recent years technology of the modern day Prosthesis has ventured to new heights, but they have not perfected an artificial limb yet. With the amount of people in need of prosthetic limbs, the demand for a perfect prosthesis is tremendous. The perfect prosthesis shouldn’t feel or even look like an artificial limb. Prosthetics should go unnoticed throughout the rest of the amputee’s life.

Problems with blood circulation, injuries from traffic collusion to military combat, cancer, and birth defects are all reasons why someone may lose a limb. Typically, after a person loses a limb they lose mobility and they can’t do many things by themselves. According the amputee coalition 95 percent of all amputees have a prosthesis. Out of the 95 percent ten percent of them say they do not wear it on a constant basis, 75 percent of them indicated that it was easier to do daily task without the device. What are these devices? There are two main subsets of prosthesis including prosthesis that replaces the limb and then there is cosmesis prosthesis that are just for cosmetic that do not have any function. The main idea of a prosthetic is that

When my engineering teacher told my class we’d be making prosthetic hands, many emotions ran through my mind. I was excited, anxious, and most of all- intrigued. I looked at the box laid in front of me and my group - everything we needed was in this LEGO Mindstorms NXT kit. We opened it, studying the motors, sensors, and seven hundred LEGO pieces neatly organized inside. These materials were paired with simple instructions: create a prosthesis that could replace a human hand. Our grade depended on it’s ability to pick up objects: it had to be strong enough to grab full water bottles, but sensitive enough to pick up a potato chip without damaging it.

In 2000, scientists discovered an oldest prosthetic toe made of leather and wood in Egypt. This artificial limb was found connected to mummified remains of noblewoman, whose age is almost 3000 years. It is a great artefact to present how prosthetics have changed throughout history. Compared with recent time prosthetics, these devices were made from wood and metal, also, were covered with leather.

With modern technology, the Modular Prosthetic Limb replicates a biological arm. With mechanical, electrical, and computer engineering, innovation in multisensory prosthetics are able to improve the lives of amputees and the disabled.

Take a second, and imagine your life as a teenager, fresh out of college with, aspiring to get a degree in whatever your heart desires. You’ve got lots of ambition and potential. The world is at your fingertips; you can do anything you set your mind to. But one day, tragedy strikes and the unthinkable happens: you lose a limb. Why is not important, but what the future entails is. Let’s say this limb is your right arm, the one you have used all your life to write, eat, type and play the guitar. Now let’s change the scenario a little bit. Instead you’ve lost your legs in a horrific car accident where both were crushed under the weight of the dashboard as your car collided with the 4x4 in front of you. You wake up the next day in the hospital groggy, barely remembering what happened. Shock is the only thing running through your mind the moment you look down to see your legs missing. Your brain thinks they’re still there because yesterday you were just getting out of bed for your morning jog. All that remains are the stubs where your legs used to be and the unbearable thought of being confined to a motorized chair for the rest of your life.

who want limbs that function faster and better. Their demands push the limits of prosthetic

Only very recently have we been able to believe that it could be possible, let alone make any real advancement in this field, long before type of research became a real academic field. The first neural prosthesis developed was in 1957. That very first prosthesis was the cochlear implant; which is now widely used today with hundreds of thousands of people currently fitted with it. This development was the first of its kind and has since lead the way for other creations such as the internal pacemaker in 1958, the first motor prosthesis in 1961, the first auditory brainstem implant in 1977, and the peripheral nerve bridge implanted into the spinal cord of a rat in 1981.All of these are only a few of the incredible advances made in quite a close amount of time. All of these advancements are relatively new compared to the field of medicine, which has been practiced for centuries. These breakthroughs lead to much more effort going into neural prosthetics, propelling even more progress in this field to bleed out and help other disciplines such as brain computer interface and vice versa. This has lead some patients that are paraplegics, being able to walk once again with the aid, and in 1988 an implant in the lumbar anterior root was developed to help promote standing in them. All this has accumulated in FDA approving many more applications for aids now not only

In prescription, prosthetic limb is a fake gadget that replaces a missing body part. The procedure of making this known as appendage prosthesis. It is a piece of the field of bio mechatronics, the study of utilizing mechanical gadgets with human muscle, skeleton, and sensory systems to support or improve engine control lost by trauma, ailment, or deformity. Prostheses are ordinarily used to supplant parts lost by harm (traumatic) or absent from conception (intrinsic) or to supplement imperfect body parts. Inside the body, manufactured heart valves are in like manner utilization with simulated hearts and lungs seeing less normal utilization. Other therapeutic gadgets and supports that could be considered prosthetics incorporate amplifiers,

The four-bar linkage mechanism has been introduced in the early 1970’s. Mechanical substitutes (prosthesis) for human lower limbs have advanced from small tree trunks shaped into peg legs in ancient times to today’ s sophisticated prosthesis with controlled motion. Nowadays, the linkage is implemented in persons with above-knee and through-knee amputations.

There are over 11.4 million amputees worldwide in need of prosthetic limbs. Traditional methods of producing prosthetics limit availability due to cost and durability. While the technology is still very new and not well developed, 3D-printing is the future of prosthetic limbs. 3D-printed prosthetic limbs may be printed with different materials, and provide quick production with a lower cost, which can increase the availability of prosthetic limbs to more amputees.