Separated of twins, joined at the butt thanks to 3D printing technology

http://3dprint.com/71548/conjoined-twins-butt-3d-print/

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Twins, Joined at the Butt, Will be Separated Tomorrow Thanks to 3D Printing Technology

3D printing has been used to change the lives of many people over the past several years. Whether it is for lending a hand in the rapid prototyping of products, creating prosthetic hands for children with upper arm differences, or allowing surgeons to perform high risk surgeries with much more ease than ever before, the technology is certainly providing ample benefit to society.

Back in February, we reported on a complex surgery that was undertaken in Texas to separate conjoined twins. To complete the surgery, a detailed medical model was created to aid surgeons in the delicate operation. Now doctors in China are doing the same.

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Tomorrow (June 9), will be a huge day for one family in China, as their beautiful newborn conjoined twin girls will be separated from each other for the first time in their lives. Born on March 17 in Nanjing County of South Fujian, China, the twins were found to be conjoined at the buttocks area. In fact, they share part of the same digestive tract and portions of their anus. Like most surgeries which involve the separation of conjoined twins, it is an extremely risky and difficult operation.

The girls have been transferred to the Children’s Hospital of Fudan University, where the surgery will take place tomorrow. Surgeons opted to wait until the girls were 3 months old and weighed approximately 10kg in order to perform the risky surgery. In studies, this has been shown to be the best time to perform such an invasive procedure, as babies tend to be strong enough at this point, and their bodies are ready to heal on their own.

These twins are in good hands though, as in the past 15 years, the Children’s Hospital of Fudan University has successfully separated 7 sets of conjoined twins. On top of this, using CT scan data, the surgeons were able to create an accurate 3D printed replica of the twins which doctors were able to simulate surgery on. They have used this 3D printed model to perform a mock operation, and in the process were able to revise their “real” surgical plan to make it more efficient and safe. While it is the very first time that 3D printing was used in order to aid in the separation of twins at this hospital, the hospital has used 3D printing in the past for other surgeries.

The surgery will include the separation of the twins, as well as reconstruction of their perineums and the rectums.  Currently the twins share a little less than 1cm of the same anus. It will certainly be a difficult surgery, but with the help of 3D printing, the surgical team feels very confident.

As far as the cost of the surgery, it is very expensive, but the family got a helping hand from the “Angel Mother” charity, in the amount of 200,000 yuan (approximately $32,231).

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Best of luck to these beautiful twin girls as they undergo quite an extensive surgery tomorrow. What do you think about the use of 3D printing in creating medical models for complicated surgeries like this? Discuss in the Conjoined Twins forum thread on 3DPB.com.

3dprint.com

by  | JUNE 8, 2015

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3D printed gun as a form of protest

Protesters in Texas Took to the Streets Armed with a 3D Printer in A Bid to Stir Things Up

http://3dprint.com/37168/ghost-gunner-texas-open-carry/

photo by come and take it texas

It’s a controversial issue, and activists are using a tool which sprung from the 3D printed gun movement to draw attention to their stance on gun rights.

A group of gun rights activists gathered outside the Texas State Capitol in Austin yesterday intent on pushing lawmakers to relax open-carry gun laws, and the “featured attraction” was a CNC device which uses 3D printed parts, the Ghost Gunner.  With this device the activists proceeded to ‘3D print’ a gun right in front of the Capitol building.

The gathering was organized by Come And Take It Texas, or CATI, and the groupsays it’s “been the front line for gun rights since their inception two years ago.” The bill was filed by state Rep. Jonathan Stickland, R-Bedford, and he says BH 195 is aimed at eliminating the state’s handgun licensing requirements.

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As odd as it may seem given the state’s reputation, Texas is one of only six US states where citizens are not allowed to openly carry handguns.

As for the Ghost Gunner, it’s made by Defense Distributed, the Austincompany famous, or infamous depending on your position on the matter, for 3D printing the Liberator plastic gun. The Ghost Gunner is a small CNC device capable of machining a receiver for the AR-15.

A large share of the controversy began with the 3D printing of the Liberator, and the desktop CNC Ghost Gunner is a direct descendant of that effort by Defense Distributed.

“Anybody can purchase one of these to print firearms in their own homes,” Murdoch Pizgatti, president of CATI, told NBC News.

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The Ghost Gunner uses an aluminum block that’s referred to as “80 percent lower” – a piece which can be purchased for less than $100 – to fabricate a working receiver in around 15 minutes. Defense Distributed calls the Ghost Gunner project “a non-profit, open source hardware effort.” They add that the Ghost Gunner schematics and design files will be published into the public domain.

The device uses 3D printable jigs to hold the receiver part in place as milling steps are completed. When milling an 80% AR-15 lower receiver, the company says two jig pieces are required to secure the lower in place as the ‘trigger pocket’ is milled, and two more jig pieces are used to drill the trigger pin holes.

Defense Distributed says that, in general, using their device to manufacture semi-automatic firearms like the AR-15 lower receivers is legal for private individuals. They add that some states and municipalities restrict either the manufacture of certain firearms, or more recently, the personal manufacture of a firearm with a 3D printer or CNC machine.

As for federal laws, they prohibit the manufacture of firearms for future sale without a Federal Firearms License. According to the ATF, allowing others the use personal CNC equipment may constitute manufacturing, so Defense Distributed tells Ghost Gunner owners to avoid printing firearms for other individuals.

Let’s hear your thoughts on what, if anything, should be done by authorities to make sure these weapons do not fall in the hands of crazed maniacs. Discuss this story in the 3D Printed Guns Add to Open Carry Debate in Texas thread on 3DPB.com.

ggg

3DPRINT.COM
by  | JANUARY 14, 2015