Patent ID: 6778861
Filing Date: 2004-08-17
Classification: A61B,A61C,A61N,Y10S

Abstract:
A bone screw comprisinga tubular shaft made of biocompatible electrically conductive material, forming a first tissue electrode and having at one end a head which has a configuration adapted for engagement by a turning tool; a second tissue electrode made of a biocompatible electrically conductive material and positioned at a second end of said shaft remote of said head; electrical insulating means between said shaft and said second tissue electrode; a receiving coil mounted within said shaft in which a low-frequency electrical alternating voltage is inducible by means of an external coil, said receiving coil having first and second terminals electrically coupled to said shaft and said second tissue electrode, and a bone-screw-type external thread at said second end of said shaft remote of said head.