Scientists Regenerate Rabbit Skeleton Joints

rabbit joint 4x460
Reanimator, Reanimate me!
Researchers at Columbia University have regrown the destroyed joints of rabbits by shaping a scaffolding that encourages bones to heal in particular forms:

In research published this week in The Lancet, the researchers demonstrate that the technology–a joint-shaped scaffold infused with a growth factor protein–works in rabbits. About a month after the implant, the animals began using their injured forelimbs again, and at two months the animals moved almost as well as similarly aged healthy rabbits. The study is the first to show that an entire joint can be repaired while being used.[…]

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A New Artificial Hand With A Delicate Robotic Grip

robohand_x220

This four-fingered robotic hand contains sensors that help it pick up a variety of objects

Industrial robots have been helping in the factories for a while, but most robots need a complex hand and powerful software to grasp ordinary objects without damaging them.  Researchers from Harvard and Yale Universities have developed a simple, soft robotic hand that can grab a range of objects delicately, and which automatically adjusts its fingers to get a good grip. The new hand could also potentially be useful as a prosthetic arm.

 

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Microtool Inspired By Human Hand

Microtool Inspired By Human Hand 

 The gripper closed around tissue.

Using the human hand as a model, scientists at Johns Hopkins University and its medical school have developed a microscopic tool that might one day be used inside the body. The tool, a clawlike gripper less than a millimeter in diameter, could grab cells from tissue for a biopsy, for example.

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Wearable Robotic Arm

Wearable Robotic Arm 

Tail-wrist-II

Paraplegics and the elderly often face problems with their joints and muscle movements. When stuck to bed owing to their illness, patients tend to develop contraction of muscles that could be irreversible, and regular range of motion exercises through physiotherapy is the only alternative left. There are a few muscle and joint extractors available to assist, but Tail-wrist-II seems to be a novel makeover in the category. Developed by Hideyuki Tsukakoshi, assistant professor of Mechanical Control Systems at the Tokyo Institute of Technology, the Tail-wrist-II is designed to prevent contraction of muscles and joints.

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New Biomaterial Could Help In Knee Cartilage Repair

New Biomaterial Could Help In Knee Cartilage Repair 

 Abnormal Cartilage

A new biomaterial developed by Cartilix, a biotech startup based in Foster City, CA, could dramatically improve the success rate of knee-cartilage repair surgery, making the procedure more accessible to patients with bad knees. The new material, called ChonDux, consists of a polymer hydrogel that, when injected into the knee during surgery, guides the regeneration of cartilage by stimulating repair cells in the body.

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TFAS: A New Procedure That Can Restore Full Use Of Spine

TFAS: A New Procedure That Can Restore Full Use Of Spine 

 TFAS Posterior View

Ever bend down and not get up again for a few days? Have you turned your neck in one direction only to find that your body had to accompany your neck to turn to the other side?

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What Is That Thing On Olympian Kerri Walsh’s Shoulder?

What Is That Thing On Olympian Kerri Walsh’s Shoulder? 

 Olympic Volleyball Player Kerri Walsh

For the longest time I thought the black sinewy thing on Olympic beach volleyball player Kerri Walsh’s shoulder was either a confused Alien face sucker, a horny spider, a bad tattoo decision (a la Mike Tyson), or all of the above. Turns out I was way off, and it’s actually Kinesio athletic tape from a company in Albequerque. And upon further inspection, the hype surrounding the $15 tape appears justified, and goes way beyond helping athletes.

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Call for a Warning System on Artificial Joints

Call for a Warning System on Artificial Joints

Monitoring artificial joints should be common practice

Dr. Lawrence Dorr, a nationally known orthopedic surgeon in Los Angeles, realized last year that something was very wrong with some of his patients.

Months after routine hip replacements, patients who had expected to live without pain were in agony. “The pain was grabbing me around the back,” said Stephen Csengeri, who is 54, and a lawyer from Torrance, Calif.

Dr. Dorr found he had implanted the same metal hip socket in each patient. Several needed surgery again — a replacement for their replacement.

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