Thirteen-year-old Sydney Kendall had one request for the Washington University in St. Louis students building her a robotic prosthetic arm: Make it pink.
Kendall Gretsch, Henry Lather and Kranti Peddada, seniors studying biomedical engineering in the School of Engineering & Applied Science, accomplished that and more. Using a 3-D printer, they created a robotic prosthetic arm out of bright-pink plastic. Total cost: $200, a fraction of the price of standard prosthetics, which start at $6,000.
“Currently, prosthetics are very expensive, and because kids keep growing, it is too costly for them to have the latest technology,” said Sydney’s mother, Beth Kendall. “With the 3-D printer, a prosthetic can be made much less expensive. The possibilities of what can be done to improve prosthetics using this technology is very exciting.”
Sydney lost her right arm in a boating accident when she was six years old. She learned to write with her left hand, but found most tasks difficult to accomplish with her prosthetic arm. Sydney said her new arm is easy to manipulate. By moving her shoulder, she can direct the arm to throw a ball, move a computer mouse and perform other tasks.
Peddada said it was thrilling to observe Sydney use her arm.
“It really showed us the great things you can accomplish when you bridge medicine and technology,” Peddada said.
The students developed the robotic hand as part of their engineering design course with Joseph Klaesner, PhD, associate professor of physical therapy at the School of Medicine. Several local medical practitioners, including orthopedic hand surgeons Charles A. Goldfarb, MD, and Lindley Wall, MD, both associate professors of orthopaedic surgery at the School of Medicine, served as mentors.
“They brought their engineering expertise, and we shared our practical experience with prosthetics and the needs of children,” Goldfarb wrote in a recent blog post about the project. “It was a valuable experience as Kendall, Henry and Kranti had no prosthetic experience and were able to think about the issues in a very different way.”
As Goldfarb explained, the WUSTL student design offers two key design differences that set it apart from similar “Robohand” devices that have been invented recently — the motor and the working thumb.
This prosthetic is battery-powered and controlled with an accelerometer (like in the iPhone). The thumb moves with a slightly different trigger (compared with finger motion).
Prosthetic limbs are tricky for patients of any age, and especially for children, noted Goldfarb, because they’re still growing and need to move to larger-sized devices on a regular basis. Since prosthetics have no sensation, some kids are more comfortable making do with their existing natural limbs, he added.
While 3-D printers can cost about $2,500, they are capable of producing artificial limbs at a relatively low individual cost.
“These prosthetic hands are really exciting because they are inexpensive, can be remade when the child grows, and they do offer functional abilities,” he said.
The Latest on: 3D printed prosthetic arm
via Google News
The Latest on: 3D printed prosthetic arm
- Custom bionic hand will be 3D-printed to order – in just 10 hourson November 15, 2019 at 1:00 pm
Amputees wishing to get a powered prosthetic hand – also known as a bionic hand – typically have to wait quite a while for the thing to be manufactured. Soon, however, they should be able to order a ...
- Texas High Schoolers Design and Build Prosthetic Arm for Student So She Can Play the Celloon November 12, 2019 at 3:31 pm
After realizing that the blueprints for the arm design were available for free online, Addison reached out to Nimitz High School engineering teacher Dwight Davison, whose classroom had recently ...
- TU Delft: A New Approach for the 3D Printed Hand Prostheticon November 12, 2019 at 12:21 am
Taking into consideration that most ADLs require low gripping forces and adding an increased accessibility provided by the advantages of the nonassembly and 3D printing approach, we consider this ...
- WNY high schoolers are giving 3D-printed prosthetic hands to local children who need them. For free.on November 11, 2019 at 8:02 pm
"[These students] were doing some electronics, some design, some 3D-printing, some CAD work," Hawkins ... "A lot of the kids that have affected limbs, they get along pretty well as they are," Hawkins ...
- I built my own prosthetic arm out of LEGO to defy the ‘disabled’ stereotypeon November 10, 2019 at 12:03 am
I can understand how difficult this must be for so many people – there were no prosthetics ... can become an arm. We are in an exciting era of regeneration and entering one of more human and ...
- New 3D printing company in Kinston changing the future of prostheseson November 8, 2019 at 12:40 pm
His arm and leg were severed at the scene. With years of wearing 50 different traditional prostheses, Srulevich now places on a flexible 3D-printed leg socket made by Additive America at EastPoint ...
- Learning the ropes: The role 3D printing could play within orthosis and prosthesison November 8, 2019 at 2:14 am
3D printing expedites and empowers the bespoke nature of prosthetics, giving clinicians a very capable tool to create unique limbs for individual patients, and do it in far less time. Another key ...
- UC San Diego Researcher and Explorer Aims to Empower Amputees with 3D Printed Prosthetic Limbson November 4, 2019 at 4:00 pm
The model will be used to build a custom-fitted socket and prosthesis that can be 3D printed. “I feel this guilt for having access to a prosthetic that lets me have a full life when so many others don ...
- Moving 3D Printed Prosthetic Arms With A Pulseon November 4, 2019 at 4:00 pm
This pulse sensor arm also makes use of the team’s TNS 1i, a 3D printed robotic hand that makes use of those tiny little linear actuators. Of course, if you’re going to build a prosthetic robotic arm, ...
- Enabling the Future: 3D Printed Frog Arm Prosthetic for Epilepsy Patientson September 14, 2019 at 1:48 am
Elizabeth created a wearable arm that allowed a user to open his paralyzed ... and considering the level of functionality required in the prosthetic, Binkley created a 3D printed prototype accentuated ...
via Bing News