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Thursday, March 15, 2007

Scientists are developing an artificial vein for use in patients with circulation problems.

Artificial vein to boost surgery - BBC report


"Scientists are developing an artificial vein for use in patients with circulation problems.

The device, which encourages blood to flow in its natural spiralling fashion, has produced highly promising results in clinical trials.

The developers hope it will offer surgeons carrying out bypass operations an alternative to relying on blood vessels taken from the patient's body."

"The new device has been developed by Dr Peter Stonebridge and his colleagues at Ninewells Hospital in Dundee.

Dr Stonebridge used sophisticated imaging equipment to prove that blood does not flow in a straight line, but rotates in a corkscrew fashion through the blood vessels.

He then used this knowledge to develop a vein made out of a polymer called ePTFE which encourages blood to move in this natural corkscrew fashion because it has a grooved interior like a gun barrel. "