External coil assembly for a transcutaneous system

Abstract

An external coil assembly for a transcutaneous system is disclosed. The assembly comprises: a housing having a skin-adjacent surface, an opposing exposed surface and a threaded shaft open to the exposed surface and extending toward the skin-adjacent surface; an external coil secured within the housing; and a magnet with a threaded exterior surface to threadingly engage the threaded shaft, wherein at least one of either the shaft thread or the magnet thread has at least one transverse channel forming discontinuities in the thread.

What is claimed is: 
     
         1 . A method facilitating removal of debris accumulating between a magnet and a housing of an external coil assembly of a transcutaneous system, comprising:
 providing at least one transverse channel in the housing; and   collecting debris which accumulates between the housing and the magnet in one or more of the at least one transverse channel.