Friday 26 May 2017

Liver with a 3D printer. Innovative method of Polish student

Jan Witowski, a medical student at the Jagiellonian University, has developed an innovative, probably the cheapest in the world printing method 3D liver models. Printed copies are already helping in surgery patients. Operations with the use of 3D printed models are rare liver. The obstacle is primarily just the high cost.
Student from Krakow hopes that through his method manages to popularize 3D prints of the liver, which serve the medicine and will assist during the operation.

Polish model - 500 zł - 120 EUR foreign - several thousand zł - a few thousand EUR

Prints 3D models of organs, to facilitate diagnosis and surgery of the patient, increasingly used in medicine. But prints are rare liver. - The liver is a complex organ anatomically and print it is also complicated. The cost of production of one model of a 400-500 zł, while the other, the foreign models - several thousand. zł - says Jan Witowski.

Low production costs organ scheme by the Polish project arise primarily from printing capabilities in the average 3D printer. Foreign models are designed so that their print specialist is needed, the way the machine.

Expensive printer use to print primarily resins (transparent, colored, flexible) - thanks to all models come with the printer. According to the draft Vitovskoho plastic model elements (corresponding to the inside of the liver) are printed separately and then "flood" the corresponding silicon (which takes the shape of the liver).

He found a material which replaces resin

Polish student was able to find a material that is transparent (the model of the liver must be transparent, would see the internal structure of the organ) and was replaced by a transparent resin in expensive printers. - Selected by silicone us great works, so we can get past a very expensive machine and use ordinary printers that can literally put on the desk - he explains.

- Our solution is not nothing worse than much more expensive, the proposed abroad - provides Witowski.

For now, the model is used at the University Hospital in Krakow, but interest in it is growing among Polish and foreign surgeons. The invention now writes a specialist foreign press.

The precise location of the affected tissue

Liver 3D model accurately reproduces the structure of the patient's organ, thereby allowing physicians during surgery more accurately than CT scans to find altered tissues, including tumors, the position of which is sometimes difficult to detect using standard imaging methods.

- With great enthusiasm we approach this type of models, because they let preoperatively explain some of the intricacies of anatomy that can surprise us during surgery. With such prints, we know that the structure of the organ, which facilitates the planning and conduct of operations - says dr. Michał Pędziwiatr, a surgeon at the University Hospital in Krakow.

As he explained, the primary indication for liver metastases of other cancers (especially colorectal cancer) to this organ. The doctor added that there are not many places in Poland, which deal with the operations of the liver and therefore "it seems that the number of patients requiring surgery is greater than the number of places where you can perform these operations."

And why I write about it, but because when I started with the first gain some information about 3D printing is a thinker, with some incredible things is that in Poland there for maybe 50 years. It was in January or February of this year. Today, we have the end of May and it turns out that a student from Krakow away from Lancut about 190 km any discovered a new way to print liver model using a 3D printer. This is getting to be quite real. But it does not end. It turns out to be after reading the first few sentences that the student is a person who went to high school in Lancut that is in my hometown. and that to me is just so amazing.

Thursday 25 May 2017

In the US, vehicle printed in 3D

Electrical, printed in 3D vehicle conquers the US market

Local Motors Company, which created the world's first 3D car, unveiled Olli - equipped with the latest technology, electric vehicle that runs without a driver.
Olli was presented during the opening ceremony of the new building Local Motors in National Harbor, Maryland. Using an application like Uber and Lyft, customers can order a car to get to your destination.
Advanced technology
Bus, IBM Watson technology uses the Internet of Things, is equipped with 30 built-in sensors throughout the vehicle, which collect data allowing to take quick decisions. Sensors can be added and adjusted continuously. They can also take into account the local needs of passengers. The vehicle is equipped with a device that turn text into speech so that it can be interaction between the vehicle and passengers. The bus will also be able to answer questions how it works, where he was going and how it makes decisions. Olli can even tell you about the places through which a passes and also recommend local sights and best restaurants. The vehicle can accommodate up to 12 people. His track the environmental impact is negligible.
- Olli offers a smart, safe and sustainable transport solutions - said John B. Rogers, CEO and co-founder of Local Motors. - We are curious what the community will do with such advanced technology - he added.
Olli has a unique assembly process. Individual parts of the bus are created in the local 3D printing, and then assembled by specialists of Local Motors. The printing process takes approx. 10 hours, and the installation of about an hour. Production of the following vehicles Olli held at the headquarters of Local Motors Near Phoenix.
Bright future
Local Motors Micro plans to build hundreds of factories worldwide that produce vehicles designed to meet local needs. Such factories occupy little space, consume less energy and materials. Interest in the technology has already reported 50 countries.
Olli will be used on local public roads in Washington and at the end of 2016 years in the Miami-Dade County (county in Florida) and Las Vegas (state of Nevada). Currently, Miami-Dade County is testing a pilot program in which several autonomous vehicles will be used for public transport around Miami.
- Improved stability of local transport networks within the broader order to create sustainable cities within Miami-Dade County and improving the quality of life of residents is our top priority - said Carlos Gimenez, Mayor of Miami-Dade. He admitted that the county needs to do more to improve transport in the region and the use of autonomous vehicles is a big step in the right direction.

Friday 5 May 2017

What is 4D Printing? - the next step for the development of 3D printers

For several years, we have witnessed the dynamic development of the technology  of 3D printing . We admire the fruits begotten thanks to her. This technique has great potential and could revolutionize the entire mechanics, medicine, space exploration and many other fields. And although it seems that we are still at the beginning of this road,  scientists  already are wondering what will happen next. And what will happen? Well, 4D Printing, naturally.
4D printing, or ... what?
Two-dimensional and three-dimensional printing no longer need to explain to anyone unless - in the first case we are dealing with a flat image, the second: with the spatial structure. So how can you go beyond these limits, in other words: So what is the printing technique 4D?
In print 4D fourth dimension is time. The effect of a printer is not a specific subject, but the band material, which later was formed in such a way as to turn into a predetermined object (shape).
Quoting New Scienctis:  "4D printing technique consists of printing objects in 3D, which then change their shape over time, and may move in a manner that mimics the natural processes" . Usage? It should be mentioned first of all three areas: construction,  medicine  and  space exploration .
How it's working?
All components needed to complete the final object are created using a 3D printer. Items are designed in such a way to fit as many elements in the smallest space. To do this, scientists use their knowledge, among other things,  the curve Hilbert . Thanks to this fact impossible to create a large object in a small printer, and this is one of the biggest advantages of this technique.
The printed intermediate objects have selected all the fold - upon exposure to water moving parts bend and twist to form the final construction. 

Another vision 4D Printing

Jennifer Lewis of Harvard University wants to simplify the process. -  "We decided to take a cue from nature and we looked at the complex shapes in the modified natural architectures, such as flowers."
The team led by z Lewis tried to emulate the characteristics of plant cells that contain cellulose fibers governing the extent of their movement. Researchers admixed such fibers (wood pulp) with a polyacrylamide hydrogel - gelatinous substance expanding in water. As a result, an item printed using a 3D printer with the addition of this mixture can only get longer, but do not grow on the sides.
The team of researchers also developed a mathematical model, which makes it possible to print objects with different types of folds, and even curved shapes. -  "We can program the bending, twisting, wrinkling"  - says Lewis.
To test their technique, a team of scientists has printed two flowers, which on the surface look the same, but under the influence of water develop in different ways. They tried to faithfully reproduce the specificity of orchids. The results - as most satisfactory. 
Anyway, see for yourself in the video published on the Harvard channel on YouTube:

What's next?

It is hard to predict exactly what will aim towards the development of 4D technology. However, you can take it for granted that this development shall be advanced. But we know what plans has a team of researchers from Harvard Unwiersytetu.
The team would like to use its technology in tissue engineering. An attempt will be to supplement the structure of living cells and ultimately breed new bodies. If it succeeds, we may be witnessing another revolution in medicine, this time in transplantation. It remains perhaps therefore no longer just keep our fingers crossed. 
And why am I writing about? A no because I can not hide that when printing in 4D will be used largely possibilities of 3D printers which again expands the possibilities of our company or The GCC Group
Source: New Scientist, Harvard University, SJET, TED, Self-Assembly Lab, Discovery News