Lead placement device
First Claim
1. An implantable lead assembly comprising:
- an introducer handle having a longitudinal axis;
an elongated tubular outer sheath of flexible resilient material having a longitudinal axis fixed to the introducer handle generally aligned with the longitudinal axis thereof and extending between proximal and distal ends, the outer sheath having a rigid section distant from the distal end and a deflectable section adjacent the distal end, enabling the deflectable section adjacent the distal end to deflect from a first position aligned with the longitudinal axis to a plurality of second positions in orientations transverse of the longitudinal axis;
at least one elongated steering member embedded in the outer sheath and extending between a proximal end at the introducer handle and a distal end at the distal end of the outer sheath;
an operative member mounted on the introducer handle for movement between a first position and any one of a plurality of second positions, the operative member attached to the proximal end of the steering member such that when in the first position, the distal end of the outer sheath is in the first position and when in one of the plurality of second positions, the distal end of the outer sheath is in an associated one of the plurality of the second positions;
an inner tubular sheath of flexible resilient material slidably received within the outer sheath extending between proximal and distal ends;
a knob fixed to the proximal end of the inner sheath;
a driving socket fixed to the distal end of the inner sheath;
a lead extending between proximal and distal ends slidably received within the inner tubular sheath, the lead having a helix tip electrode at the distal end; and
a driven socket fixed to the distal end of the lead and positioned for releasable mating engagement by the driving socket;
wherein with engagement of the driven socket by the driving socket and movement of the knob and inner sheath in the distal direction, the helix tip electrode for the lead can be advanced to the selected body tissue for stimulation thereof; and
wherein rotation of the knob rotates the inner sheath, the driving socket, and the driven socket such that the helix tip electrode rotatable engages with the selected body tissue.
1 Assignment
0 Petitions
Accused Products
Abstract
Lead placement apparatus to transmit electrical signals to stimulate selected body tissue includes an introducer handle supporting a tubular outer sheath of flexible resilient material including a rigid section and a deflectable section adjacent the distal end, enabling the deflectable section to deflect among a plurality of positions in orientations transverse of a longitudinal axis. An operative member on the introducer handle connected to the distal end of the outer sheath serves to move that distal end. An inner tubular sheath of flexible resilient material slidably received within the outer sheath includes a driving socket fixed to its distal end whereby, with a lead slidably received within the inner tubular sheath and including a driven socket fixed to its distal end for releasable mating engagement by the driving socket, an electrode at the distal tip of the lead can be advanced and directed to the selected body tissue for stimulation.
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Citations
18 Claims
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1. An implantable lead assembly comprising:
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an introducer handle having a longitudinal axis; an elongated tubular outer sheath of flexible resilient material having a longitudinal axis fixed to the introducer handle generally aligned with the longitudinal axis thereof and extending between proximal and distal ends, the outer sheath having a rigid section distant from the distal end and a deflectable section adjacent the distal end, enabling the deflectable section adjacent the distal end to deflect from a first position aligned with the longitudinal axis to a plurality of second positions in orientations transverse of the longitudinal axis; at least one elongated steering member embedded in the outer sheath and extending between a proximal end at the introducer handle and a distal end at the distal end of the outer sheath; an operative member mounted on the introducer handle for movement between a first position and any one of a plurality of second positions, the operative member attached to the proximal end of the steering member such that when in the first position, the distal end of the outer sheath is in the first position and when in one of the plurality of second positions, the distal end of the outer sheath is in an associated one of the plurality of the second positions; an inner tubular sheath of flexible resilient material slidably received within the outer sheath extending between proximal and distal ends; a knob fixed to the proximal end of the inner sheath; a driving socket fixed to the distal end of the inner sheath; a lead extending between proximal and distal ends slidably received within the inner tubular sheath, the lead having a helix tip electrode at the distal end; and a driven socket fixed to the distal end of the lead and positioned for releasable mating engagement by the driving socket; wherein with engagement of the driven socket by the driving socket and movement of the knob and inner sheath in the distal direction, the helix tip electrode for the lead can be advanced to the selected body tissue for stimulation thereof; and wherein rotation of the knob rotates the inner sheath, the driving socket, and the driven socket such that the helix tip electrode rotatable engages with the selected body tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Lead placement apparatus for positioning the lead of a body implantable stimulating pulse generator adapted to transmit electrical signals between a proximal end portion of the lead and a distal end portion thereof to thereby stimulate selected body tissue comprising:
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an introducer handle having a longitudinal axis; an elongated tubular outer sheath of flexible resilient material having a longitudinal axis fixed to the introducer handle generally aligned with the longitudinal axis thereof and extending between proximal and distal ends, the outer sheath having a rigid section distant from the distal end and a deflectable section adjacent the distal end, enabling the deflectable section adjacent the distal end to deflect from a first position aligned with the longitudinal axis to a plurality of second positions in orientations transverse of the longitudinal axis; at least one elongated steering member embedded in the outer sheath and extending between a proximal end at the introducer handle and a distal end at the distal end of the outer sheath; an operative member mounted on the introducer handle for movement between a first position and any one of a plurality of second positions, the operative member attached to the proximal end of the steering member such that when in the first position, the distal end of the outer sheath is in the first position and when in one of the plurality of the second positions, the distal end of the outer sheath is in an associated one of the plurality of the second positions; an inner tubular sheath of flexible resilient material slidably received within the outer sheath extending between proximal and distal ends; a knob fixed to the proximal end of the inner sheath; and a driving socket fixed to the distal end of the inner sheath; wherein, with a lead for the stimulating pulse generator extending between proximal and distal ends slidably received within the inner tubular sheath and including a driven socket fixed to the distal end thereof for releasable mating engagement by the driving socket, with engagement of the driven socket by the driving socket and movement of the knob and inner sheath in the distal direction, a helix tip electrode at the distal tip of the lead can be advanced to the selected body tissue for stimulation thereof; and wherein rotation of the knob rotates the inner tubular sheath, the driving socket, and the driven socket such that the helix tip electrode engages with the selected body tissue. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification