Thread bidirectional interlocking of electrode lead

A medical thread structure, comprising:

• a longitudinal lead body formed of a plurality of threads, at least one of said plurality of threads has an electrically conductive portion, said longitudinal lead body is arranged along a longitudinal axis;
• a functional material at least partially incorporated between said plurality of threads and at least partially located circumferentially around at least a portion of said longitudinal lead body at a certain location along the longitudinal extent of said longitudinal lead body,
• wherein said functional material is configured to form insulation areas within said longitudinal lead body, and wherein said functional material is configured to insulate said at least portion of said longitudinal lead body upon application of heat onto said longitudinal lead body, thus causing melting of said functional material into a single continuous structure, and wherein said longitudinal lead body has:
• a. a proximal end and a distal end, and
• b. said plurality of threads being aligned vertically, in parallel to the longitudinal axis, at said proximal end, wherein at least a portion of said plurality of threads is structured to have horizontal portions, perpendicular to the longitudinal axis, and vertical portions, parallel to the longitudinal axis, such that a horizontal portion of one thread is configured to pass between vertical portions of other threads, thereby interlocking therewith,
• wherein a horizontal portion of one or more threads passing between vertical portions of other threads is a beat, and each beat determines a vertical distance along the longitudinal axis between said proximal end and said distal end;
• and wherein at least one electrically conductive portion of at least one of said plurality of threads is coated with an electrically isolative layer and wherein at least one of said electrically conductive portions of at least one of said plurality of threads is exposed at predetermined locations for achieving a contact thereat.