(19)

(11)

EP 1 670 541 A1

(12)

(43) Date of publication: 21.06.2006 Bulletin 2006/25 (21) Application number: 03819048.4 (22) Date of filing: 24.10.2003

(51) International Patent Classification (IPC):  A61N 1/05(1985.01) (86) International application number: PCT/US2003/033960 (87) International publication number: WO 2005/079911 (01.09.2005 Gazette 2005/35)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR (30) Priority: 02.10.2003 US 508107 P (71) Applicant: MEDTRONIC, INC. Minneapolis, MN 55432-5604 (US)	(72) Inventors: HARRIS, Charmaine, K. Woodbury, MN 55125 (US) KING, Gary, William Fridley, MI 55432 (US) (74) Representative: Hughes, Andrea Michelle  Frank B. Dehn & Co. St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)