RF REJECTING LEAD
First Claim
1. A lead assembly for an implantable medical device, the lead assembly comprising:
- a lead body having a first portion and a second portion, the first portion adapted for coupling to a pulse generator and the second portion adapted for implantation in or near a heart;
first and second co-radial conductive coils positioned within the lead body and electrically isolated from each other, wherein the first and second conductive coils include a first and second number of coil turns and the first number is substantially equivalent to the second number;
first and second electrodes located at the second portion and respectively coupled to the first and second conductive coils;
third and fourth co-radial conductive coils positioned within the lead body and electrically isolated from each other, wherein the third and fourth conductive coils include a third and fourth number of coil turns and the third number is substantially equivalent to the fourth number, and wherein the third and fourth co-radial coils are co-axial with the first and second co-radial coils; and
third and fourth electrodes located at the second portion and respectively coupled to the third and fourth conductive coils.
1 Assignment
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Accused Products
Abstract
A lead assembly for an implantable medical device. The lead assembly comprises a lead body having a first portion and a second portion. The first portion is adapted for coupling to a pulse generator and the second portion is adapted for implantation in or near a heart. First and second co-radial conductive coils are positioned within the lead body and electrically isolated from each other. The first and second conductive coils include a first and second number of coil turns and the first number is substantially equivalent to the second number. A ring electrode is located at the second portion and a tip electrode is located distal to the ring electrode and coupled to the second conductive coil.
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Citations
20 Claims
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1. A lead assembly for an implantable medical device, the lead assembly comprising:
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a lead body having a first portion and a second portion, the first portion adapted for coupling to a pulse generator and the second portion adapted for implantation in or near a heart; first and second co-radial conductive coils positioned within the lead body and electrically isolated from each other, wherein the first and second conductive coils include a first and second number of coil turns and the first number is substantially equivalent to the second number; first and second electrodes located at the second portion and respectively coupled to the first and second conductive coils; third and fourth co-radial conductive coils positioned within the lead body and electrically isolated from each other, wherein the third and fourth conductive coils include a third and fourth number of coil turns and the third number is substantially equivalent to the fourth number, and wherein the third and fourth co-radial coils are co-axial with the first and second co-radial coils; and third and fourth electrodes located at the second portion and respectively coupled to the third and fourth conductive coils. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A lead assembly for an implantable medical device, the lead assembly comprising:
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a lead body having a first portion and a second portion, the first portion adapted for coupling to a pulse generator and the second portion adapted for implantation in or near a heart; first and second co-radial conductive coils positioned within the lead body and electrically isolated from each other, wherein the first and second conductive coils include a first and second number of coil turns, the first and second number of coil turns include a number of matched turns and a number of unmatched turns, and the number of unmatched turns divided by the total number of unmatched and matched turns is less than approximately 1.5%; and third and fourth co-radial conductive coils positioned within the lead body and electrically isolated from each other, wherein the third and fourth co-radial conductive coils are co-axial with the first and second co-radial conductive coils, and wherein the third and fourth conductive coils include a third and fourth number of coil turns, the third and fourth number of coil turns include a number of matched turns and a number of unmatched turns, and the number of unmatched turns divided by the total number of unmatched and matched turns is less than approximately 1.5%. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A lead assembly for an implantable medical device, the lead assembly comprising:
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a lead body having a first portion and a second portion, the first portion adapted for coupling to a pulse generator and the second portion adapted for implantation in or near a heart; a conductive coil including a filar comprising first and second conductive members positioned within the lead body and electrically isolated from each other; a ring electrode located at the second portion and coupled to the first conductive member; and a tip electrode located distal to the ring electrode and coupled to the second conductive member. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification