Electrical stimulation leads and systems with anchoring units having struts and methods of making and using
First Claim
1. An electrical stimulation lead, comprising:
- a lead body having a distal end portion and a proximal end portion;
a plurality of electrodes disposed along the distal end portion of the lead body;
a plurality of terminals disposed along the proximal end portion of the lead body;
a plurality of conductors disposed within the lead body, each conductor of the plurality of conductors electrically coupling each of the plurality of terminals to at least one of the plurality of electrodes; and
an anchoring unit disposed along the distal end portion of the lead body, the anchoring unit having a first end and a second end and comprisinga first attachment ring disposed at the first end,a second attachment ring disposed at the second end, wherein one of the first attachment ring or second attachment ring is fixed to the lead body and another one of the first attachment ring and the second attachment ring is slidably engaged around the lead body, anda plurality of longitudinal struts extending linearly between, and coupled to, the first and second attachment rings, wherein at least a portion of each longitudinal strut rests against the lead body in a retracted position, and each anchoring unit is configured and arranged to have a deployed position in which the first and second attachment rings are positioned closer together with the longitudinal struts extending away from the lead body to contact patient tissue and anchor the lead within the patient tissue.
1 Assignment
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Accused Products
Abstract
An anchoring unit is disposed on a lead body of an electrical stimulation lead. The anchoring unit has a first end and a second end and includes a first attachment ring disposed at the first end, a second attachment ring disposed at the second end, and longitudinal struts extending linearly between, and coupled to, the first and second attachment rings. At least a portion of each longitudinal strut rests against the lead body in a retracted position, and each anchoring unit has a deployed position in which the first and second attachment rings are positioned closer together with the longitudinal struts extending away from the lead body to contact patient tissue and anchor the lead within the patient tissue.
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Citations
19 Claims
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1. An electrical stimulation lead, comprising:
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a lead body having a distal end portion and a proximal end portion; a plurality of electrodes disposed along the distal end portion of the lead body; a plurality of terminals disposed along the proximal end portion of the lead body; a plurality of conductors disposed within the lead body, each conductor of the plurality of conductors electrically coupling each of the plurality of terminals to at least one of the plurality of electrodes; and an anchoring unit disposed along the distal end portion of the lead body, the anchoring unit having a first end and a second end and comprising a first attachment ring disposed at the first end, a second attachment ring disposed at the second end, wherein one of the first attachment ring or second attachment ring is fixed to the lead body and another one of the first attachment ring and the second attachment ring is slidably engaged around the lead body, and a plurality of longitudinal struts extending linearly between, and coupled to, the first and second attachment rings, wherein at least a portion of each longitudinal strut rests against the lead body in a retracted position, and each anchoring unit is configured and arranged to have a deployed position in which the first and second attachment rings are positioned closer together with the longitudinal struts extending away from the lead body to contact patient tissue and anchor the lead within the patient tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15)
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11. An electrical stimulation lead, comprising:
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a lead body having a distal end portion and a proximal end portion; a plurality of electrodes disposed along the distal end portion of the lead body; a plurality of terminals disposed along the proximal end portion of the lead body; a plurality of conductors disposed within the lead body, each conductor of the plurality of conductors electrically coupling each of the plurality of terminals to at least one of the plurality of electrodes; and an anchoring unit disposed along the distal end portion of the lead body, the anchoring unit having a first end and a second end and comprising a first attachment ring disposed at the first end, a second attachment ring disposed at the second end, a plurality of longitudinal struts extending linearly between, and coupled to, the first and second attachment rings, wherein at least a portion of each longitudinal strut rests against the lead body in a retracted position, and each anchoring unit is configured and arranged to have a deployed position in which the first and second attachment rings are positioned closer together with the longitudinal struts extending away from the lead body to contact patient tissue and anchor the lead within the patient tissue, and a spring coupled to at least one of the first and second attachment rings and configured and arranged to bias the anchoring unit to the deployed position. - View Dependent Claims (13, 17)
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16. An anchoring unit having a first end and a second end, the anchoring unit comprising:
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a first attachment ring disposed at the first end and configured and arranged to receive a first portion of a lead within the first attachment ring, wherein the first attachment ring comprises an outer ring surface, an interior surface, and a side surface extending between the outer ring surface and the interior surface; a second attachment ring disposed at the second end and configured and arranged to receive a second portion of the lead within the second attachment ring, wherein the second attachment ring comprises an outer ring surface, an interior surface, and a side surface extending between the outer ring surface and the interior surface; and a plurality of longitudinal struts extending linearly between, and coupled to, the first and second attachment rings, wherein at least one of the longitudinal struts comprises a biasing portion attached to the outer ring surface of first attachment ring and extending outwardly away from the outer ring surface of the first attachment ring, the at least one of the longitudinal struts further comprising an attachment portion attached to the side surface of the second attachment ring. - View Dependent Claims (18, 19)
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Specification