Tined lead
First Claim
1. For a lead that conducts electrical pulses to body tissue, an electrode having a central axis, a rear end portion;
- and a tip having a front tip surface adapted to be placed in electrical conductive relationship to body tissue and tined means joined to the electrode for attachment to trabeculations to aid in retaining the tip in electrical conductive relationship to body tissue, the tined means including a tine inclined relative the electrode to extend outwardly therefrom in a direction from the tip surface toward the rear end portion, one dimension of the tine in a plane perpendicular to the direction of extension of the tine away from the electrode being substantially greater than a second dimension of the tine in the same plane that is at right angles to said one dimension, and a tubular portion surrounding the electrode and having a front end portion disposed adjacent the front tip surface and a rear end portion disposed adjacent the electrode rear end portion and more remote from the tip front surface than the tine, the tine being integrally joined to the tubular portion intermediate its front and rear end portions to extend outwardly thereof in a direction away from the tip surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A tined lead that includes an insulated electrical conductor having one end electrically connectable to a pulse generator and an opposite end extending into one end portion of a metal electrode in electrically conductive relationship therewith, the opposite end portion of the electrode having a rounded tip for contacting body tissue, an axial bore through the tip surface to reduce the electrical conductive surface area of the tip and cross bores intersecting the axial bore remote from the tip, nonconductive, integrally joined plastic plugs filling said bores, and a nonconductive molded plastic member circumferentially surrounding the electrode, other than the tip, and the portion of the conductor that is connected to the electrode; the molded plastic member having a plurality of circumferentially spaced tines extending outwardly in a direction away from the tip. The tines are finned shaped and are flattened to be more flexible about axes parallel to the electrode axis than about axes perpendicular thereto.
44 Citations
14 Claims
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1. For a lead that conducts electrical pulses to body tissue, an electrode having a central axis, a rear end portion;
- and a tip having a front tip surface adapted to be placed in electrical conductive relationship to body tissue and tined means joined to the electrode for attachment to trabeculations to aid in retaining the tip in electrical conductive relationship to body tissue, the tined means including a tine inclined relative the electrode to extend outwardly therefrom in a direction from the tip surface toward the rear end portion, one dimension of the tine in a plane perpendicular to the direction of extension of the tine away from the electrode being substantially greater than a second dimension of the tine in the same plane that is at right angles to said one dimension, and a tubular portion surrounding the electrode and having a front end portion disposed adjacent the front tip surface and a rear end portion disposed adjacent the electrode rear end portion and more remote from the tip front surface than the tine, the tine being integrally joined to the tubular portion intermediate its front and rear end portions to extend outwardly thereof in a direction away from the tip surface.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- 9. A lead for conducting electrical pulses to body tissue comprising an axially elongated electrode having a rear end portion, central axis, and a tip having a front tip surface adapted to be placed in electrical conductive relationship to the body tissue, tined means mounted on the electrode for contacting trabeculations to aid in retaining the tip in electrically conductive relationship to body tissue, the tined means including a tubular member surrounding the electrode at a location spaced from the tip front surface and having a front end portion and a rear end portion more remote from the tip surface than the front end portion, and a plurality of circumferentially spaced tines integrally joined to the tubular member intermediate its front and rear end portions and at the juncture to the tubular member being spaced from the tubular member front and rear end portions, the tines extending radially outwardly from the tubular member in a axial direction axially from the front end portion toward the rear end portion, each tine in a plane parallel to the central axis being of a greater dimension in an axial direction than a dimension thereof that is in a direction perpendicular to said axial direction, each tine having a rounded front surface and opposite flattened side surface portions extending radially away from the rounded front surface toward the rear end portion, and an insulated electrical conductor electrically connected to the electrode.
- 11. A lead for conducting electrical pulses to body tissue comprising a metal electrode having a central axis, a tip having a front tip surface adapted to be placed in electrical conductive relationship to the body surface, a first bore opening through the tip surface, a cylindrical portion having a rear end portion and a front end portion joined to the tip to provide a rearwardly facing annular shoulder, the cylindrical portion having an exterior portion, and a second bore opening to the first bore and through the cylindrical portion exterior portion rearwardly of the tip surface, electrical insulation material filling said bores, and an insulated electrical conductor electrically connected to the electrode.
Specification