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1. (WO2010114433) AN IMPLANTABLE MRI COMPATIBLE MEDICAL LEAD WITH A ROTATABLE CONTROL MEMBER

Pub. No.:    WO/2010/114433    International Application No.:    PCT/SE2009/000480
Publication Date: Fri Oct 08 01:59:59 CEST 2010 International Filing Date: Sat Oct 31 00:59:59 CET 2009
IPC: A61N 1/05
A61N 1/16
Applicants: ST. JUDE MEDICAL AB
OLSEN, Linn
FORSLUND, Michael
DJURLING, Henrik
FORSSTRÖM, Patrik
HENRIQUEZ, Leda
DAHLBERG, Kenneth
STEGFELDT, Olof
SIVARD, Åke
Inventors: FORSLUND, Michael
DJURLING, Henrik
FORSSTRÖM, Patrik
HENRIQUEZ, Leda
DAHLBERG, Kenneth
STEGFELDT, Olof
SIVARD, Åke
Title: AN IMPLANTABLE MRI COMPATIBLE MEDICAL LEAD WITH A ROTATABLE CONTROL MEMBER
Abstract:
The invention relates to a medical implantable lead of the kind being adapted to be implanted into a human or animal body for monitoring and/or controlling of an organ inside the body. The lead comprises at a distal end a combined fixation means and electrode member in form of a helix (4), which is connected to a rotatable tubular torque transferring member (9) being in its turn connected to a rotatable control member (8) at a proximal end of the lead, and which is rotatable in relation to the lead and extendable out from the distal end, by rotation of the control member and the tubular torque transferring member, to be able to fixate the distal end of the lead to the organ by being screwed into the tissue The helix is electrically connected to a connector (7) at the proximal end by means of at least one electrically conducting wire (14) formed as an electrically conducting coil (11), which is separate from the tubular torque transferring member (9) and unrotatable in relation to the lead and which comprises one or more individual wires, each comprising an electrically conducting wire core (15) and a surrounding electrically insulating layer (16), wherein the rotatable control member (8) is rotatable within the connector (7).