Collapsing coil coupling for lead extension and extraction
First Claim
1. A device for extending a lead, comprising:
- a body;
a coil element coupled to the body, the body configured to cover at least a portion of the coil element during use, the coil element comprising a plurality of coils forming an inner lumen, wherein the inner lumen is sized to receive an outer surface of a lead, the coil element is movable between a first configuration in which the coil element slides over the lead, and a second configuration in which at least some coils of the plurality of coils grip the outer surface of the lead;
an actuation mechanism operatively coupled to the coil element, the actuation mechanism configured to move the coil element between the first and second configurations; and
a tether coupled to the lead via one or more of the body, the coil element, and the actuation mechanism, the tether configured to extend further proximally than a proximal-most end of the lead, the tether further configured to transfer at least a portion of a tension force applied to the tether to the lead via the one or more of the body, the coil element, and the actuation mechanism.
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Accused Products
Abstract
A device for extending a lead according to some embodiments includes a body, a coil element coupled to the body, the body configured to cover the coil element during use, the coil element comprising an inner lumen sized to receive an outer surface of a lead, the coil element is movable between a first configuration in which the coil element slides over the lead, and a second configuration in which at least some coils grip the outer surface of the lead; an actuation mechanism operatively coupled to the coil element, the actuation mechanism configured to move the coil element between the first and second configurations; and a tether coupled to the lead via the body, the coil element, and/or actuation mechanism, the tether configured to extend further proximally than a proximal-most end of the lead and configured to transfer tension force applied to the tether to the lead.
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Citations
20 Claims
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1. A device for extending a lead, comprising:
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a body; a coil element coupled to the body, the body configured to cover at least a portion of the coil element during use, the coil element comprising a plurality of coils forming an inner lumen, wherein the inner lumen is sized to receive an outer surface of a lead, the coil element is movable between a first configuration in which the coil element slides over the lead, and a second configuration in which at least some coils of the plurality of coils grip the outer surface of the lead; an actuation mechanism operatively coupled to the coil element, the actuation mechanism configured to move the coil element between the first and second configurations; and a tether coupled to the lead via one or more of the body, the coil element, and the actuation mechanism, the tether configured to extend further proximally than a proximal-most end of the lead, the tether further configured to transfer at least a portion of a tension force applied to the tether to the lead via the one or more of the body, the coil element, and the actuation mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for extending a lead, comprising:
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sliding a coil element over a lead when the coil element is in a first configuration, the coil element comprising a plurality of coils forming an inner lumen sized to receive an outer surface of the lead; moving the coil element from the first configuration into a second configuration in which at least some coils of the coil element grip the outer surface of the lead; and applying tension to the lead by applying tension to a tether that is coupled to the lead via the coil element when the coil element is in the second configuration. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification