One-Day 3D Printing on MJF Parts, Guaranteed

Lund University Student Develops Simplified Process to 3D Print Prosthetic Arm Sockets

HP

Share this Article

Of all the uses that 3D printing technology has provided the medical field with over the past few years, none show as much immediate impact as the production of assistive devices. From communities in Uganda to the veterans of the United States, 3D printed prosthetics have helped improve the lives of many children and adults around the world. Now, Emelie Strömshed, a Master’s student in product development at the Sweden-based Lund University School of Engineering, has developed a simplified process involving a trio of 3D technologies. The process has already helped to create a custom prosthetic arm socket for a young girl named Neya Pfannenstill.

prosthetic4small

Strömshed has developed a step-by-step process to create the perfect-fitting prosthetic limb, aimed to provide an easy-to follow guide to prosthetists who don’t have a full grasp on CAD. With her research, Strömshed set out to prove that a combination of CAD modeling, 3D scanning, and 3D printing could be used in a simplified process to create more efficient and better fitting prosthetic devices. The process begins with 3D Systems’ iSense 3D Scanner, a low-cost accessory that transforms an iPad or iPhone into a 3D scanner. First, Strömshed offset the limb surface at a distance that was equal to the desired thickness of the 3D printed socket, which was then subtracted from the original 3D scan to create an inner surface that fit Pfannenstill perfectly.

processsmall

Strömshed’s step-by-step process

After the scan is repaired and offset to create the hollow socket, the prosthetic design is shaped and smoothed out, imported with electrode modules, and given a unique pattern to suit the preference of the wearer. These electrode modules are then subtracted after the pattern is developed, and are inserted back into the ready-to-use 3D printed socket at the end of the process. The final design is then 3D printed — in Strömshed’s case at least— with a selective sintering system in a strong nylon material, which can also be colored if desired.

neya

Neya Pfannenstill with her new 3D printed prosthetic arm socket

Compared to the traditional methods of prosthetic manufacturing, which generally require skilled manual crafting and a costly amount of casting and molding, Strömshed’s method looks to be a major advancement. Strömshed’s simplified process is meant to give prosthetic technicians without advanced CAD skills the means to produce a perfectly fitting prosthetic socket with 3D printing. Not only did she manage to create a optimal fitting prosthetic for the young Neya Pfannenstill, a time and cost comparison also showed the potential to save around 400 hours and 261,000 Swedish Krona (approximately $32,576 USD) per year by using Strömshed’s process.

Strömshed’s comprehensive research was supervised by Christian Veraeus, a prosthetist from Aktiv Ortopedteknik, and Olaf Diegel, a professor of product development at Lund University. Professor Diegel is well-known in the maker community for his work with 3D printed instruments, and has created a number of 3D printed guitars—one of which was played by Steve Miller Band’s Kenny Lee Lewis— and even a 3D printed saxophone.

lundStepping away from the music for a moment, Diegel has helped Strömshed to develop a new-age prosthetic production process that can be utilized by the everyday prosthetics specialist. By making this relatively new process of using 3D technology for prosthetic production easier-to-use and more convenient, Strömshed’s research is paving the road for further innovation and higher accessibility of prosthetic devices. This is quite a feat. Thoughts? Discuss in the 3D Printed Arm Prosthetics forum over at 3DPB.com.

[Source/Images: Odd Guitars]

 

Share this Article


Recent News

Digital Anatomy Creator Software Enables 3D Printing of Medical Models

Bioprinting for Burns and Cancer on the Horizon for CTI Biotech



Categories

3D Design

3D Printed Art

3D Printed Food

3D Printed Guns


You May Also Like

Featured

Bioprinting Breakthrough: Bioprinter for Implantable Tissues Installed in French Hospital

A French hospital installed a bioprinter to manufacture biological tissues for transplantation in humans. This quantum leap in bioprinting is possible thanks to Poietis, a local biotech company specializing in...

3D Printing News Briefs, November 24, 2021: 3D Printing Steel, Glass, Skin Models, & More

In today’s 3D Printing News Briefs, we’re starting with a roundtable discussion on AM workforce development. Then we’re moving on to research, first about 3D printing a better steel, and...

Covestro and Farsoon Strengthen Partnership to Create Engineering Powders

Leveraging their key strategic partnership, materials manufacturer Covestro and Chinese powder bed fusion company Farsoon want to create the best possible customer experience for end-use parts. In this collaboration, the...

PrintParts and 3D Control Systems Partner to Integrate End-to-End Traceability in AM Industry

A development partnership agreement has been announced between 3D Control Systems, a San Francisco-based software company specializing in workflow management platforms for additive manufacturing, and PrintParts Inc., an AM technologies...


Shop

View our broad assortment of in house and third party products.