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Prefabricated orthotic devices are currently designed to fit a range of patients and therefore they do not provide individualized comfort and function. Custom-fit orthoses are superior to prefabricated orthotic devices from both of the above-mentioned standpoints. However, creating a custom-fit orthosis is a laborious and time-intensive manual process performed by skilled orthotists.
Besides, adjustments made to both prefabricated and custom-fit orthoses are carried out in a qualitative manner. So both comfort and function can potentially suffer considerably. A computerized technique for fabricating patient-specific orthotic devices has the potential to provide excellent comfort and allow for changes in the standard design to meet the specific needs of each patient.
Conclusions The rapidly prototyped orthoses fabricated in this study provided good fit of the subject’s anatomy compared to a prefabricated AFO while delivering comparable function (i.e. mechanical effect on the biomechanics of gait). The rapid fabrication capability is of interest because it has potential for decreasing fabrication time and cost especially when a replacement of the orthosis is required.
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Ravid Koriat, a recent graduate of the Bezalel Academy of Arts and Design in Jerusalem, used personal inspiration for her final project in Industrial Design. A conversation with her sister-in-law about the challenges of nursing and pumping “mother’s milk” prompted Koriat to design a new style of feeding system, the FEEDER, specifically for newborns in the neonatal intensive care unit (NICU). To improve the system for breast milk collection, storage and delivery, Koriat developed accurate prototypes using Stratasys’ PolyJet multi-material 3D printing technology.
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Silicone molding is a manufacturing process for parts used in prototyping, functional testing and short-run production. Obtaining good results out of the mold requires the use of strong, accurate mold patterns. These patterns are typically machined from metal or wood, but the process is usually time-consuming and expensive.
Stratasys’ FDM-based (Fused Deposition Modelling) additive manufacturing solutions offer a better and more agile alternative for producing patterns for silicone molding. FDM 3D printed patterns are strong and won’t distort under molding pressure or break when they’re removed from the mold. They’re dimensionally stable too and can be used to produce numerous molds with accuracy. The best part of the story, however, is that FDM 3D printed patterns are usually significantly less expensive and much faster to produce than machined patterns.
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A new paradigm has become the dominant marker of success and innovation: the startup mindset. Successful entrepreneurs focus on possibilities instead of current realities, disrupting standard processes to achieve their goals.
Minneapolis & Rehovot, Israel - August 20, 2015 - Stratasys Ltd. (NASDAQ:SSYS), a leading global provider of 3D printing and additive manufacturing solutions has announced that Germany-based, Hamburg Ship Model Basin (HSVA), has significantly reduced the time and cost to produce bespoke prototype ship model components since introducing Stratasys additive manufacturing technology.
Having previously outsourced its 3D printing requirements, HSVA realized that further time savings and cost reductions could be achieved by bringing the technology in-house. Following the installation of the Objet Eden350V in 2013, the company has been able to quickly and cost-effectively produce strong, high performance plastic prototype parts while upholding its high standards of quality and precision.
Meeting the challenge to produce 100% true-to-scale prototype models "A full-size ship is a complex geometric form with many complicated shapes that have to be re-produced true-to-scale," explains Michael Neumeier, Mechanical Design Engineer at HSVA. "To traditionally manufacture a prototype ship rudder in wood or plastic is a very skilled and labor-intensive job and typically takes up to three weeks to produce. With our Stratasys 3D Printer, we can produce parts within a day, which after cleaning, are ready for final assembly."
This extraordinarily short production time combined with minimal set up grants HSVA far more flexibility in dealing with customer requests - including the implementation of last minute changes. According to Neumeier, HSVA is also reaping the benefits of 3D printing within the production of the case for model azimuth propulsor drives (also known as "Pods"), one of the most advanced marine propulsion systems which are typically very difficult to produce and assemble. Due to the geometry of the 3D printed strut, the gearbox can easily be changed by removing just one part of the strut. This was too difficult with the traditionally produced milled strut connector, according to Neumeier.
"Being able to print the various parts on our Stratasys 3D Printer makes assembly much easier. This has seen us slash lead times by as much as 70 percent, which has resulted in significant cost reduction of around 30 percent," he adds.
Material properties meet rigorous testing requirements All 3D printed components are produced in VeroGray, a rigid opaque material which provides excellent dimensional stability, great detail visualization and a sufficiently smooth surface quality. A unique combination of extreme precision and high material strength enables VeroGray models to withstand the rigorous testing procedures undertaken by the company.
"It's now difficult to imagine life without our in-house 3D printing capability", adds Neumeier. "Stratasys has been extremely supportive during installation, and the technology is now being used in almost every department. Not only have we cut lead times and costs, but the need for less human intervention throughout prototype production ensures maximum process stability and reliability.
"The integration of our additive manufacturing technology at HSVA in Germany and the incredible difference it is making to their design and production process is indicative of the efficiencies enjoyed by customers across a host of industries," says Andy Middleton, President of Stratasys EMEA, "Material advancements in particular enable the production of tough, realistic prototypes that can endure rigorous functional testing during the development phase."
The privately-managed and independent Hamburg Ship Model Basin (HSVA) has provided research and consultancy services to the worldwide maritime industry for over a century. The company has influenced and led developments of testing technology, methods, standardization and numerical procedures to solve complex hydrodynamical and structural problems during the development of new ships and other maritime objects.
Medical casts are getting a whole lot smarter thanks to the BoomCast, a 3D-printed cast with sensors and electronics onboard to help doctors better track the healing process and provide improved mobility.
The BoomCast project was conceived of by Mike North, perhaps best known for his role on the Science Channel's "Outrageous Acts of Science" or his "In The Making" YouTube series. North broke his leg celebrating the life of his best friend Dan Fredinburg, the Google executive who was killed in an avalanche on Mount Everest back in April.
When North, a frequent traveler who's highly active, was fitted for a cast, his doctors gave him two options. Either he could be fitted with a walking cast that allowed him to move freely but not be able to travel due to potential swelling, or they could cut the cast in half to eliminate swelling issues, but he'd be bound to crutches.
mike-north-boom-cast-1.jpg And here's the finished product on Mike North's foot.
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