US 12,144,979 B2
Extravascular lead designs for optimized pacing and sensing having segmented, partially electrically insulated defibrillation coils
Mark T. Marshall, Forest Lake, MN (US); Amy E. Thompson-Nauman, Ham Lake, MN (US); Melissa G. T. Christie, Andover, MN (US); Gonzalo Martinez, Mendota Heights, MN (US); and Kevin R. Seifert, Forest Lake, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Aug. 11, 2020, as Appl. No. 16/990,321.
Application 16/990,321 is a continuation of application No. 14/695,167, filed on Apr. 24, 2015, granted, now 10,765,858.
Claims priority of provisional application 62/089,603, filed on Dec. 9, 2014.
Claims priority of provisional application 62/075,376, filed on Nov. 5, 2014.
Prior Publication US 2020/0368519 A1, Nov. 26, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/05 (2006.01); A61N 1/39 (2006.01)
CPC A61N 1/0504 (2013.01) [A61N 1/0563 (2013.01); A61N 1/3918 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An implantable medical electrical lead comprising:
an elongate lead body having a proximal end and a distal portion;
a first electrode on the distal portion of the elongate lead body, wherein the first electrode comprises:
a first segment comprising at least one coated portion which is coated with an electrically insulating material configured to:
attenuate transmission of a pacing pulse to a heart of a patient; and
allow transmission of a defibrillation shock to the heart of the patient; and
a second segment which is separated from the first segment by a distance, wherein the second segment comprises:
at least one coated portion which is coated with the electrically insulating material; and
at least one uncoated portion configured to:
transmit a pacing pulse to the heart of the patient; and
sense the electrical activity of the heart,
wherein the electrically insulating material is configured to increase attenuation of sensing of electrical activity of the heart by the at least one coated portion compared to the at least one uncoated portion; and
a second electrode on the distal portion of the lead body, wherein the second electrode is configured to:
deliver one or more pacing pulses the heart; and
sense the electrical activity of the heart.