Expandable assembly for cardiac lead fixation
First Claim
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1. A cardiac lead comprising:
- a conductive element; and
a fixation assembly including (a) a threaded member threadably engaged with the conductive element such that rotation of the threaded member causes the threaded member to translate longitudinally relative to the conductive element, (b) a fixation element having a first end coupled to the threaded member and a second end coupled to a fixed location, and (c) a resilient membrane extending over the fixation element such that rotation of the threaded member affects the resilient membrane radially with respect to the conductive element.
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Abstract
A cardiac lead includes a lead body that defines a passage, a conductive element that extends through the passage, and a fixation assembly. The fixation assembly includes a threaded member threadably engaged with the conductive element such that rotation of the threaded member causes the threaded member to translate longitudinally relative to the conductive element. A fixation element has a first end coupled to the threaded member and a second end coupled to a fixed location. A resilient membrane extends over the fixation element such that rotation of the threaded member affects the resilient membrane radially with respect to the conductive element.
43 Citations
19 Claims
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1. A cardiac lead comprising:
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a conductive element; and a fixation assembly including (a) a threaded member threadably engaged with the conductive element such that rotation of the threaded member causes the threaded member to translate longitudinally relative to the conductive element, (b) a fixation element having a first end coupled to the threaded member and a second end coupled to a fixed location, and (c) a resilient membrane extending over the fixation element such that rotation of the threaded member affects the resilient membrane radially with respect to the conductive element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A cardiac lead comprising:
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a lead body that defines a passage; a conductive element that extends through the passage; and a fixation assembly including a threaded member threadably engaged with the conductive element, and an expandable mechanism including a fixation element having a first end coupled to the threaded member and a second end coupled to a fixed location, the expandable mechansism further including a resilient membrane extending over the fixation element, wherein the expandable mechanism is configured to transition between a retracted configuration and an expanded configuration to radially affect the resilient membrane with respect to the lead body when the threaded member is rotated. - View Dependent Claims (10, 11, 12)
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13. A lead fixation assembly for securing a cardiac lead at a location, the cardiac lead comprising a lead body that defines a passage and a conductive element that extends through the passage, the lead fixation assembly comprising:
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a threaded member threadably engaged with the conductive element; a fixation element having a first end coupled to the threaded member and a second end coupled to a fixed location; and a resilient membrane extending over the fixation element such that manipulation of the threaded member affects the resilient membrane radially with respect to the lead body. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification