Detachable endovascular occlusion device activated by...

Details Detachable endovascular occlusion device activated by... Detachable endovascular occlusion device activated by...

A - Human Necessities

61

B

A61B 17/12 (2006.01) A61B 17/00 (2006.01) A61B 18/12 (2006.01) A61B 17/38 (1995.01)

Patent

CA 2160640

An apparatus is provided for electrocoagulating blood and tissue at an occlusion site by means of application of an alternating signal or current through a detachable coil on the end of a microcatheter. A Guglielmi Detachable Coil (GDC)is preferably used in the combination with radio frequency energy to cause localheating at the coil. Once carbonization of blood at the detachment zone of the GDC coil occurs, the impedance of the entire system increases. The impedance increase is detected to automatically turn off the alternating current and then to apply a direct current to electrolytically detach the GDC coil from the microcatheter.

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