Title:
APPARATUS AND METHOD FOR EXPANDING A STIMULATION LEAD BODY IN SITU
Document Type and Number:
WIPO Patent Application WO1999055411
Kind Code:
A3
Abstract:
An implantable lead is provided with at least one extendable member to position therapy delivery elements, which may be electrodes or drug delivery ports, after the lead has been inserted into the body. The lead may be formed as a resilient element which is contained in a retainer tube that may be removed to permit the lead to deploy. Alternatively, a non-resilient lead may be provided with a slotted retainer tube. A series of mechanical linkages for expanding and retracting the lead within the human body may be actuated with various mechanisms. A control system may be provided for closed-loop feedback control of the position of the extendable members.
Inventors:
KING GARY W
RISE MARK T
SCHENDEL MICHAEL J
SCHALLORN RICHARD
RISE MARK T
SCHENDEL MICHAEL J
SCHALLORN RICHARD
Application Number:
PCT/US1999/008734
Publication Date:
February 17, 2000
Filing Date:
April 20, 1999
Export Citation:
Assignee:
MEDTRONIC INC (US)
International Classes:
A61M5/142; A61N1/05; A61M5/172; (IPC1-7): A61N1/05
Domestic Patent References:
| WO1994007413A1 | 1994-04-14 | |||
| WO1996034560A1 | 1996-11-07 | |||
| WO1997032532A1 | 1997-09-12 | |||
| WO1996039932A1 | 1996-12-19 |
Foreign References:
| US5370679A | 1994-12-06 | |||
| EP0499491A2 | 1992-08-19 | |||
| US5702438A | 1997-12-30 | |||
| US5117828A | 1992-06-02 | |||
| US4800898A | 1989-01-31 | |||
| US5558672A | 1996-09-24 |
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