A fizzical approach

October 2004
Engineer (00137758);10/8/2004, Vol. 293 Issue 7661, p41
This article reports that a biocompatible coating medical instruments that fizzes on contact with fluids has been developed by engineers at TWI Ltd. It's claimed that the technology eould make operations more accurate and less traumatic by enabling surgeons to see intrusive devices such as needles more clearly. Called Phyz, the technology is based upon a biocompatible layer containing effervescing agents. Once this coating is immersed in water or tissue it generates tiny bubbles. The effect of these bubbles on the wave means that greater positional and directional information can be seen by the scanning equipment. Similar to an Phyz technology was initially funded by the Department of Health and the British Technology Group, until TWI took control of commercialisation this year.


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