Tag Archives: medical
Toddler Emma Fitted With 3D Printed Magic Arms
Two-year-old Emma was born with a rare condition called arthrogryposis multiplex congenita. This disorder greatly limited her muscle movement in her arms. 3D printing technology provided a magic solution.
After researching the disease, Emma’s parents attended a medical conference where they learned about the Wilmington Robotic Exoskeleton (WREX). Emma was able to try out a version of the WREX at the hospital, but she was too small for the bulky metal arms.
In order to design a version for Emma that would both fit her and weigh significantly less, the researchers used the Stratays Dimension 3D printer to build pieces of the arms out of the same type of plastic that’s used in LEGOs. The pieces snap together and resistance bands are used to adjust the tension on the two arms.
Watch the video below for Emma’s story.
Via Digital Trends.
Here Comes Controversy: Hobbyists 3D Print Automatic Weapons
An interesting and controversial story was published by Atomic MPC this week involving hobbyists designing and 3D printing automatic weapons.
In the wake of the tragic shooting in Colorado earlier this week, the Atomic forums entered a discussion on gun control and gun laws not only in Australia but the USA. Naturally as conversation progresses the topic goes off track a little, and one Atomican discovered a forum discussing the manufacture of AR15 lower receivers.
At first glance some readers, and especially gun enthusiasts may say “so what, why is this any different to making your own car parts?”. Well, the answer really is very simple, an engine part is not an object designed with the specific purpose of forging a weapon, a lower receiver is for the most part, is destined for such duties.
Okay, here comes the controversy. 3D printing is enabling easier access to guns, right? Wrong.
Look back at the 1993 film In The Line of Fire, starring Clint Eastwood and John Malkovich, and you will see a fanatic who creates a gun out of plastic molds. That was well before MakerBot got its start. Dangerous people will always find ways to hurt others. Technology does not accelerate this trend.
3D printing will have a revolutionary impact on our society, spanning industries from medical to logistics to entertainment. We hope to see, and report on, many more stories about the positive applications of this technology.
Via Atomic MPC.
America Will Lead the Future of Manufacturing, China Will Follow
In a fantastic opinion piece by technology entrepreneur and academic Vivek Wadhwa, the case is made that America will be the center of manufacturing, not China. This won’t happen through increasing Chinese labor costs or monetary policy, but through American innovation in technology. Specific innovations cited include robotics, AI, 3D printing, and nanotechnology.
Below are Wadhwa’s thoughts on 3D printing:
A type of manufacturing called “additive manufacturing” is now making it possible to cost-effectively “print” products. In conventional manufacturing, parts are produced by humans using power-driven machine tools, such as saws, lathes, milling machines, and drill presses, to physically remove material until you’re left with the shape desired. This is a cumbersome process that becomes more difficult and time-consuming with increasing complexity. In other words, the more complex the product you want to create, the more labor is required and the greater the effort.
In additive manufacturing, parts are produced by melting successive layers of materials based on three-dimensional models — adding materials rather than subtracting them. The ”3D printers” that produce these parts use powered metal, droplets of plastic, and other materials — much like the toner cartridges that go into laser printers. This allows the creation of objects without any sort of tools or fixtures. The process doesn’t produce any waste material, and there is no additional cost for complexity. Just as, thanks to laser printers, a page filled with graphics doesn’t cost much more than one with text (other than the cost of toner), with 3D printers we can print a sophisticated 3D structure for what it would cost to print something simple.
Three-D printers can already create physical mechanical devices, medical implants, jewelry, and even clothing. The cheapest 3D printers, which print rudimentary objects, currently sell for between $500 and $1,000. Soon, we will have printers for this price that can print toys and household goods. By the end of this decade, we will see 3D printers doing the small-scale production of previously labor-intensive crafts and goods. It is entirely conceivable that, in the next decade, manufacturing will again become a local industry and it will be possible to 3D print electronics and use giant 3D printing scaffolds to print entire buildings. Why would we ship raw materials all the way to China and then ship completed products back to the United States when they can be manufactured more cheaply locally, on demand?
Read the full article at foreignpolicy.com.
American flag photo by Loving Earth used under Creative Commons license.
Vivek Wadhwa photo by BAIA used under Creative Commons license.
Top 3D Printing Headlines Last Week: Dinosaurs, Action Figures, Organs, Olympics
A roundup of the top news On 3D Printing brought you from July 2 to July 8.
Monday, July 2
- Video: 3D Printing for Dummies; A Very Basic Introduction
- Top 10 Countdown: Most Popular 3D Printing Stories in June 2012
Tuesday, July 3
Wednesday, July 4
Thursday, July 5
- How Leading Scientists Across Fields are Embracing 3D Printing
- Always Wanted Your Own Action Figure? 3D Print Your Face [Video]
Friday, July 6
Scientists Create Blood Vessels Using Sugar and 3D Printing
University researchers have discovered a way to 3D print blood vessels, using sugar as the “ink” and a RepRap 3D printer. UPenn and MIT researchers collaborated on the study.
The research was conducted by a team led by postdoctoral fellow Jordan S. Miller and Christopher S. Chen, the Skirkanich Professor of Innovation in the Department of Bioengineering at Penn, along with Sangeeta N. Bhatia, Wilson Professor at the Massachusetts Institute of Technology, and postdoctoral fellow Kelly R. Stevens in Bhatia’s laboratory.
The researchers published their findings in Nature and summarized their results in a UPenn statement.
Rather than trying to print a large volume of tissue and leave hollow channels for vasculature in a layer-by-layer approach, Chen and colleagues focused on the vasculature first and designed free-standing 3D filament networks in the shape of a vascular system that sat inside a mold. As in lost-wax casting, a technique that has been used to make sculptures for thousands of years, the team’s approach allowed for the mold and vascular template to be removed once the cells were added and formed a solid tissue enveloping the filaments.
The formula they settled on — a combination of sucrose and glucose along with dextran for structural reinforcement — is printed with a RepRap, an open-source 3D printer with a custom-designed extruder and controlling software. An important step in stabilizing the sugar after printing, templates are coated in a thin layer of a degradable polymer derived from corn. This coating allows the sugar template to be dissolved and to flow out of the gel through the channels they create without inhibiting the solidification of the gel or damaging the growing cells nearby. Once the sugar is removed, the researchers start flowing fluid through the vascular architecture and cells begin to receive nutrients and oxygen similar to the exchange that naturally happens in the body.
Below is a video showing their amazing discovery.
Read more from the UPenn summary.
Blood vessel photo by shoebappa used under Creative Commons license.
