3D printed prosthesis

3D Printed Prosthesis

In the United States, many people live with limb differences. This means they were born without a limb or lost one because of an injury or illness. Getting a prosthetic device—a replacement limb—can be very expensive. The high cost often makes it hard for people to get the help they need.

This is where 3D printed prostheses can help. Unlike traditional prostheses, which can cost a lot of money, 3D printed versions are more affordable. This technology uses a special printer to build a prosthetic layer-by-layer. It creates a custom prosthetic that fits the user’s unique needs. Because of this, many more people can get the support and mobility they deserve.

Background

The first 3D printed prosthetic was made in 2011. It started when a carpenter named Richard Van As lost two fingers in an accident. He wanted to work again but could not pay for a regular prosthetic. He worked with Ivan Owen, a performer who had made a moving puppet hand. Together, they built a mechanical prosthetic for Van As. They then used a 3D printer to make a new version called "Robohand". They shared their design and instructions on Thingiverse so others could learn how to build it.

3D designing custom prosthesis

Creating a 3D printed prosthesis starts with making a model of the residual limb. This can be done using 3D scanning, MRI, or CT scan. The model helps design a prosthesis, which is then printed. After printing, the prosthesis is cleaned and put together with extra parts like support rods or bolts.

3D printing makes it easy to create prototypes fast. This is helpful for making custom sockets that fit well and feel comfortable. It also allows for fun designs, like different colors and textures. This can help a person feel more confident and enjoy using a prosthesis. Projects like Limbitless Solutions let children design their own colorful and special prostheses.

Open source design

Open source designs for prostheses make it easier and cheaper to get help. Projects like Enable give clear instructions for building prostheses and connect people who need them with volunteers who can build one. Other projects, such as Cyborg Beast, make special prostheses for kids with different needs and sizes. Some programs even let users add their own details for a perfect fit.

Not everyone gets the same results from these designs. Good design and the right materials help make better prostheses. Experienced designers follow important medical rules. Research, such as work done at Carnegie Mellon University, uses new ways to study 3D printed parts. This research helps make the design process better and easier for everyone.