Implantable medical elongated member with dual purpose conduit
First Claim
1. A system comprising:
- a stylet comprising a handle coupled to a flexible shaft that extends from the handle; and
a lead comprising;
an elongated member having a proximal end and a distal end;
an electrode disposed closer to the distal end of the elongated member than the proximal end of the elongated member;
an exit port defined by a longitudinal outer surface of the elongated body; and
a conduit within the elongated member that is in fluid communication with the at least one exit port, wherein the conduit is configured to accept the flexible shaft of the stylet.
1 Assignment
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Accused Products
Abstract
An implanted elongated member, e.g., a medical lead or catheter, includes one or more conduits that are configured to accept a stylet to guide the elongated member during implantation and deliver a solidifying substance to an outer surface of the distal portion of the elongated member via one or more exit ports. Once the elongated member is correctly positioned within the patient, the stylet is removed from the conduit and the solidifying substance is delivered into the conduit. 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
22 Claims
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1. A system comprising:
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a stylet comprising a handle coupled to a flexible shaft that extends from the handle; and a lead comprising; an elongated member having a proximal end and a distal end; an electrode disposed closer to the distal end of the elongated member than the proximal end of the elongated member; an exit port defined by a longitudinal outer surface of the elongated body; and a conduit within the elongated member that is in fluid communication with the at least one exit port, wherein the conduit is configured to accept the flexible shaft of the stylet. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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removing a stylet from a conduit of an elongated member, wherein the elongated member comprises an exit port defined by a longitudinal outer surface of the elongated member and in fluid communication with the conduit; and delivering a solidifying substance to the exit port via the conduit, wherein the solidifying substance interfaces with a tissue of a patient through the exit port. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method comprising:
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inserting a lead into a patient, wherein the lead comprises an exit port defined by a longitudinal outer surface of the lead, a conduit within the lead that is in fluidic communication with the exit port, and an electrode disposed on the outer surface of the lead; guiding the lead to a position adjacent the tissue with a stylet disposed within the conduit; removing the stylet from the conduit; and delivering a solidifying substance to the exit port via the conduit, wherein the solidifying substance interfaces with a tissue of a patient through the exit port. - View Dependent Claims (22)
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Specification