Extendable and retractable lead
First Claim
Patent Images
1. A lead comprising:
- a lead body extending from a distal end to a proximal end;
a conductor disposed within the lead body and extending from the distal end to the proximal end of the lead body;
an outer terminal ring coupled with the lead body;
a terminal pin disposed at the proximal end of the lead body; and
a sleeve is coupled with the outer terminal ring with a non-orientation specific snap-fit connection, and the sleeve is coupled with the terminal pin with a snap-fit connection, wherein the snap-fit connection comprises a rotatable snap-fitted connection that allows rotation of the terminal pin relative to the sleeve after the sleeve is snap-fittedly coupled with the terminal pin.
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Accused Products
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.
267 Citations
41 Claims
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1. A lead comprising:
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a lead body extending from a distal end to a proximal end;
a conductor disposed within the lead body and extending from the distal end to the proximal end of the lead body;
an outer terminal ring coupled with the lead body;
a terminal pin disposed at the proximal end of the lead body; and
a sleeve is coupled with the outer terminal ring with a non-orientation specific snap-fit connection, and the sleeve is coupled with the terminal pin with a snap-fit connection, wherein the snap-fit connection comprises a rotatable snap-fitted connection that allows rotation of the terminal pin relative to the sleeve after the sleeve is snap-fittedly coupled with the terminal pin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A lead comprising:
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a lead body extending from a distal end to a proximal end;
a conductor disposed within the lead body and extending from the distal end to the proximal end of the lead body;
a connector assembly including an outer terminal ring, a sleeve, and a terminal pin;
the sleeve rotatably coupled with the terminal pin;
an electrode base coupled with the conductor proximate to the distal end of the lead body, the electrode base including external threads;
an active fixation element coupled with the electrode base;
an outer insulative threaded shell coupled with the lead body, the outer insulative threaded shell having internal threads, the electrode base threadingly coupled with the outer threaded shell; and
the conductor mechanically and electrically coupled with the terminal pin and the active fixation element, and as the terminal pin is rotated, the active fixation element and the electrode base are rotated. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A lead comprising:
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a lead body extending from a distal end to a proximal end;
a conductor disposed within the lead body and extending from the distal end to the proximal end of the lead body;
an outer terminal ring coupled with the lead body;
a rotatable terminal pin disposed at the proximal end of the lead body;
a sleeve is rotatably coupled with a snap-fit connection with the outer terminal ring or the terminal pin, the sleeve is rotatable about the pin after the snap-fit connection of the sleeve;
an electrode base coupled with the conductor proximate to the distal end of the lead body;
an outer threaded shell coupled with the lead body, the electrode base threadingly coupled with the outer threaded shell; and
a fixation helix, the conductor mechanically and electrically coupled with the terminal pin and the fixation helix, and as the terminal pin is rotated, the fixation helix and the electrode base are rotated. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A lead comprising:
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a lead body extending from a distal end to a proximal end;
a conductor disposed within the lead body and extending from the distal end to the proximal end of the lead body;
an outer terminal ring coupled with the lead body;
a terminal pin disposed at the proximal end of the lead body; and
a sleeve disposed between the outer terminal ring and the terminal pin;
a means for snap-fittedly coupling the sleeve with the outer terminal ring and/or the terminal pin;
an electrode base coupled with the conductor proximate to the distal end of the lead body, the electrode base including external threads;
an active fixation element coupled with the electrode base; and
an outer threaded shell formed of polyetheretherketone coupled with the lead body, the outer threaded shell having internal threads, the electrode base threadingly coupled with the outer threaded shell. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
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Specification