Implantable medical elongated member with in situ formed fixation element
First Claim
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1. An apparatus comprising:
- an elongated member having a proximal end and a distal end;
at least one electrode disposed closer to the distal end of the elongated member than the proximal end of the elongated member;
at least one exit port defined by a longitudinal outer surface of the elongated body;
at least one conduit within the elongated member that is in fluid communication with the at least one exit port; and
a solidifying substance delivered by the at least one conduit to tissue within a patient, the solidifying substance extending outward from the at least one exit port of the elongated body to form a fixation element.
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Accused Products
Abstract
An implanted elongated member, e.g., a medical lead or catheter, includes one or more conduits that deliver a solidifying substance to an outer surface of the distal portion of the elongated member via one or more exit ports. The solidifying substance is cured in situ from moisture in the surrounding tissue, UV light or some other curing method. The solidifying substance helps secure the elongated member to a target tissue site. The solidifying substance may form fixation structures that extend away from the elongated member, form an adhesive bond between the elongated member and the tissue, or inflate a balloon element that that engages with the adjacent tissue.
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Citations
42 Claims
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1. An apparatus comprising:
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an elongated member having a proximal end and a distal end; at least one electrode disposed closer to the distal end of the elongated member than the proximal end of the elongated member; at least one exit port defined by a longitudinal outer surface of the elongated body; at least one conduit within the elongated member that is in fluid communication with the at least one exit port; and a solidifying substance delivered by the at least one conduit to tissue within a patient, the solidifying substance extending outward from the at least one exit port of the elongated body to form a fixation element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method comprising:
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inserting an elongated member into a patient, wherein the elongated member comprises at least one exit port defined by a longitudinal outer surface of the elongated member, and at least one conduit within the elongated member that is in fluidic communication with the at least one exit port; positioning the elongated member adjacent to a tissue of the patient; and delivering a solidifying substance to the at least one exit port via the at least one conduit, wherein the solidifying substance interfaces with the tissue through the at least one exit port. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A system comprising:
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a medical lead comprising; an elongated member having a proximal end and a distal end and a longitudinal outer surface that defines at least one exit port; at least one stimulation electrode disposed closer to the distal end than the proximal end; at least one conduit within the elongate member that is in fluidic communication with the at least one exit port; and a solidifying substance delivered by the at least one conduit to tissue within a patient, the solidifying substance extending outward from the at least one exit port of the elongated body to form a fixation element; and an electrical stimulator that delivers electrical stimulation therapy to a patient via the at least one stimulation electrode of the medical lead. - View Dependent Claims (34, 35, 36)
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37. A system comprising:
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a medical lead comprising; an elongated member having a proximal end and a distal end; at least one exit port defined by a circumferential outer surface of the elongated body; and at least one conduit within the elongated member that is in fluid communication with the at least one exit port; and a fluid delivery device in fluid communication with the at least one conduit that delivers a solidifying substance to tissue within a patient such that the solidifying substance extends outward from the longitudinal outer surface of the elongated member to form a fixation element. - View Dependent Claims (38, 39, 40, 41, 42)
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Specification