A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Artificial Bones Custom-Made On 3D Inkjet Printer
Custom-made artificial bones for implantation in humans are being printed using 3D inkjet printers. Researchers at the Tissue Engineering Department at the University of Tokyo Hospital and venture capitalist Next 21 have performed trials on ten people in the past year and a half.
(Artificial 3D inkjet printed bone structure)
Here's the process used to make an artificial bone. First, the patient's actual bone structure is scanned with X-ray and CT scanners. The resulting data is combined to make a three-dimensional computer model of the bone; a set of cross-sections is sent to the special 3D inkjet printer.
The 3D inkjet printer prints onto thin layers of powdered alpha-tricalcium phosphate (alpha-TCP); the printer "ink" is a water-based polymer that hardens the alpha-TCP. Successive laydowns of powder and polymer "prints out" the bone cross-sections to an accuracy of one millimeter.
The resulting artificial bone is lightweight and porous; very similar to the original human bone used as a model.
The human trials were done on male and female patients, ranging in age from ten to fifty-four years. The specific bones selected for printing and transplantation are important; facial bones are being targeted because the technique does not produce a structure that is capable of bearing weight and stress like the major bones of the body (like the femur or thigh bone).
However, the new artificial bones created from the alpha-tricalcium phosphate powder and polymer are ten times stronger than earlier implants made from hydroxylapatite, a naturally occurring mineral that is also the main component of natural bone.
Researchers hope to make the technology commercially available by 2010.
Frank Herbert dreamed of something like this when he wrote about the Atlotl/Gibiril Regimen in his 1972 book The Godmakers.
Orne began to show small but steady signs of recovery... they placed him on an atlotl/gibiril regimen, forcing the energy transfer which allowed him to regrow his lost fingers and eye, restore his scalp line and erase the other internal-external damage.
(Read more about the Atlotl/Gibiril Regimen)
Be sure to take a look at an earlier effort; see Bio Ink Jet Printing Muscle And Bone, which uses a somewhat different technique. Progress has also been made in regenerating bones; see University of California Bone Regeneration, which details a technique that has been called the most significant advance in this field in decades.
Via Artificial bones made with 3D inkjet printers.
Scroll down for more stories in the same category. (Story submitted 8/13/2007)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
Prototype 3D Printer Could Print Arteries In Seconds
'... in the tank the new body and the new mind and memory and life has taken almost instant form.' - Clifford Simak, 1963.
NextSense Earbuds Spy On Your Brain
'Your cephalochromoscope that cost you nine hundred dollars... colors and ceph patterns...' - Philip K. Dick, 1977.
Do Contagious Vaccines Work Better?
'...suppose we do plant an epidemic of Nine-Day Fever in Zone Red.' - Robert Heinlein, 1952.
Artificial, Implantable Kidney Prototype
'George Walt's corporate existence proved the workability of wholly mechanical organs...' - Philip K. Dick, 1964.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
NAVER Labs Haptic Device 2.0 Robot vs. IKEA
'... the two pairs of waldoes in the screen followed in exact, simultaneous parallelism.'
Spaceships Should Last So Long
'THE SPACE VESSEL was traveling swiftly… For over five thousand years they had Voyaged on and on.’
Shine On, Portable Wind Turbine
'Sometimes a man has a windmill on his roof...'
Amazing Indoor Robotic Drones Mimic Dolphins and Whales
'They circled the vast audiences, dancing, twittering, chirping...'
Space Station Shutters
'The sun-quilt was a patchwork of colors and materials on the inward side, but silvered on the outward side...'
Tiny Mining - Extract Precious Industrial Minerals From Your Own Body
'Jim, I saw them reduce four of my doctors and nurses into those little cubes!'
MIT Proposes Space Bubbles To Combat Climate Change, Misses The Point Of Space Bubbles
'Fats Jordan was hanging in the center of the Big Glass Balloon, hugging his guitar to his massive black belly above his purple shorts..'
Tianjin Solar Vehicle From Hanergy (2022) Looking Like Heinlein's (1940)
'When confronted by hills, or rough terrain, it did not stop, but simply slowed until the task demanded equaled its steady power output.'
Study Reveals Effect Of Space Travel On The Brain
'... the brain is no longer subjected to the accustomed pull, and it expands slightly in all directions.'
Sky Cruise Nuclear Powered Flying Hotel Concept
'... the huge air-freighter Jupiter.'
The Mojo Smart Contact Lens Experience
'... the lens displays would be useless without a wearable computer to do the graphics.'
Small Town Wants 60 License Plate Readers
'the registration number which the traffic control automatically photographed as she left the controlway...'
Lightyear 0 World's First Production-Ready Solar Car
'It could maintain a steady six miles per hour...'
AI Robots Excel At Trash Sorting And Recycling
'Then they press one of these here thirteen buttons...'
Could Increased Space Rocketry Damage The Ozone Layer?
'...without burning a single hydrocarbon molecule to injure the diseased atmosphere any further.'
Dyson's Secret Household Robots
'...work a human being does around a house.'
More SF in the News Stories
More Beyond Technovelgy science news stories