Extendable and retractable lead having a snap-fit terminal connector
First Claim
Patent Images
1. A method for forming an implantable lead assembly comprising:
- forming a tapered annular flange on an electrically conductive pin, the pin having a pin proximal end and a pin distal end, the annular flange having an annular flange proximal end and an annular flange distal end;
disposing the pin within an insulative sleeve;
snap-fittedly coupling the pin with the insulative sleeve including inserting the tapered annular flange within the insulative sleeve;
coupling an outer terminal ring with the insulative sleeve;
electrically coupling one or more conductors with the pin and at least one electrode; and
disposing a lead body over at least a portion of the pin and over at least a portion of the one or more conductors.
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Abstract
A lead having an extendable and retractable fixation mechanism has a rotating terminal pin at the terminal end which rotates the fixation mechanism at the distal end. As the terminal pin is rotated, the fixation mechanism is extended or retracted from the distal end of the lead. A threaded collar allows for the fixation mechanism to smoothly extend and retract from the lead, and allows for a 1:1 turn ratio between the terminal pin and the fixation mechanism. A fluoroscopic ring disposed at the distal end of the lead provides information during the implantation process.
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Citations
20 Claims
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1. A method for forming an implantable lead assembly comprising:
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forming a tapered annular flange on an electrically conductive pin, the pin having a pin proximal end and a pin distal end, the annular flange having an annular flange proximal end and an annular flange distal end;
disposing the pin within an insulative sleeve;
snap-fittedly coupling the pin with the insulative sleeve including inserting the tapered annular flange within the insulative sleeve;
coupling an outer terminal ring with the insulative sleeve;
electrically coupling one or more conductors with the pin and at least one electrode; and
disposing a lead body over at least a portion of the pin and over at least a portion of the one or more conductors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for forming an implantable lead assembly comprising:
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forming a tapered annular flange on a pin, the pin having a pin proximal end and a pin distal end, the annular flange having an annular flange proximal end and an annular flange distal end;
disposing the pin within a sleeve;
snap-fittedly coupling the pin with the sleeve including inserting the tapered annular flange within the sleeve;
coupling an outer terminal ring with the sleeve;
electrically coupling one or more conductors with the pin and at least one electrode; and
disposing a lead body over at least a portion of the pin and over at least a portion of the one or more conductors;
coupling an electrode base with the conductors and the at least one electrode, the electrode base having external threads;
coupling an outer threaded shell with the lead body, the outer threaded shell having internal threads;
disposing the electrode base within the outer threaded shell;
rotating the pin and rotating the electrode base within the outer threaded shell. - View Dependent Claims (10, 11, 12, 13)
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14. A method for forming an implantable lead assembly comprising:
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disposing a pin within a sleeve;
snap-fittedly coupling the pin with the sleeve including inserting a tapered annular flange within the sleeve;
coupling an outer terminal ring with the sleeve;
electrically coupling one or more conductors with the pin and at least one electrode; and
disposing a lead body over at least a portion of the pin and over at least a portion of the one or more conductors;
coupling an electrode base with the conductors and the at least one electrode, the electrode base having external threads;
coupling an outer threaded shell with the lead body, the outer threaded shell having internal threads;
disposing the electrode base within the outer threaded shell and threadingly coupling the electrode base with the outer threaded shell; and
rotating the pin and rotating the electrode base within the outer threaded shell. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification