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Amputee builds more flexible and responsive prosthetic limbs

Ana Duarte 于 2019-06-26 11:55 分享

About the solution

Van got his left leg severed below the knee, in 1976, in a water-skiing accident. At the hospital, he was given a wood-and-rubber leg and sent home. Since he didn’t like this solution, Van became obsessed with creating a better prosthetic leg.

After doing some research, as a student at the Northwestern University Medical School Prosthetic-Orthotic Center, he realised that most prosthetics were designed within the cosmetic envelope — a prosthetic foot resembled the human foot. Which means that there was no energy to propel a leg.

So he learned from vaulting, the spring of a diving board and the C-shape of a Chinese sword his father owned. With this in mind, he started imagining a prosthetic that would enable the user to jump and land.

The inventor said he came to realise the mistakes of other prosthetics manufacturers. “You can’t function unless you have a power source”. He considered that ligaments where the muscle energy is stored, and studied the tendons of porpoises, kangaroos and cheetahs, noting how the cheetah’s hind leg landed and compressed, and the elastic nature of it.

Van’s design was also inspired by the C-shape of a cheetah’s hind leg. He needed to build a device using light but durable and strong materials, that would offer energy return.

This led to the creation of Flex-Foot, a line that includes many designs of prosthetics for a range of users made of carbon graphite (carbon graphite is stronger than steel and lighter than aluminium). One of the designs, the Cheetah, was intended for elite athletes and has been used by paralympic gold-medalists.

Van’s gadgets are responsive and more flexible, allowing athletes to use them without compromising their performance.

Van quit his job and founded his own company in 1984, Flex-Foot Incorporated, to produce and sell these devices. He holds several patents.

Adapted from: https://nyti.ms/2FzsMDa
https://bit.ly/2KKQiSb
https://bit.ly/2KCQVgv
https://s.si.edu/2X7KJUr

More info: https://bit.ly/2YkwZlO
https://www.youtube.com/watch?v=_iljcxeKOS0

这些解决方案不应包括使用药物,化学品或生物制品(包括食品);创伤性设备;冒犯性的,商业或内在危险的内容。该解决方案未经医学验证。请谨慎进行!如果您有任何疑问,请咨询健康专家。

DISCLAIMER: This story was written by someone who is not the author of the solution, therefore please be advised that, although it was written with the utmost respect for the innovation and the innovator, there can be some incorrect statements. If you find any errors please contact the patient Innovation team via info@patient-innovation.com

关于发明者

Van Phillips, born in 1954, in the USA, is an amputee who developed Flex-Foot, his own brand of prosthetic limbs. This device consists of a workable artificial leg made from carbon graphite.

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