US 12,303,682 B2
Medical lead with segmented electrodes
Sean P. Skubitz, Forest Lake, MN (US); and Jacob Silverberg, Blaine, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Mar. 22, 2021, as Appl. No. 17/208,645.
Application 17/208,645 is a continuation of application No. 16/030,334, filed on Jul. 9, 2018, granted, now 10,953,221.
Claims priority of provisional application 62/552,139, filed on Aug. 30, 2017.
Prior Publication US 2021/0205612 A1, Jul. 8, 2021
Int. Cl. A61N 1/375 (2006.01); A61N 1/05 (2006.01); H01R 24/58 (2011.01); A61N 1/36 (2006.01); A61N 1/372 (2006.01); B29C 45/14 (2006.01); B29K 75/00 (2006.01); B29L 31/00 (2006.01); H01R 24/86 (2011.01)
CPC A61N 1/05 (2013.01) [A61N 1/0534 (2013.01); H01R 24/58 (2013.01); A61N 1/36182 (2013.01); A61N 1/37217 (2013.01); B29C 45/14639 (2013.01); B29K 2075/00 (2013.01); B29K 2995/0056 (2013.01); B29L 2031/753 (2013.01); H01R 24/86 (2013.01); H01R 2201/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical lead system comprising:
a lead body including a distal end and a proximal end defining a longitudinal axis of the lead body, wherein the lead body comprises:
two or more preforms, wherein each preform includes one or more insulator portions and a lumen segment within the one or more insulator portions; and
an overmold between and adhered to the one or more insulator portions and the lumen segment of each preform of the two or more preforms;
a plurality of electrical conductors extending about the longitudinal axis of the lead body;
a plurality of segmented electrodes positioned around an outer perimeter of the lead body,
wherein each respective electrode of the plurality of segmented electrodes is electrically coupled to a respective electrical conductor of the plurality of electrical conductors,
wherein each segmented electrode of the plurality of segmented electrodes includes an outer curved surface defined by a perimeter that includes a curved portion having a radius of a curve of the curved portion,
wherein the plurality of segmented electrodes comprise one or more sets of segmented electrodes,
wherein each set of segmented electrodes includes two or more segmented electrodes secured to a respective insulator portion of the one or more insulator portions of the lead body, and
wherein the overmold defines at least one machined surface region formed by grinding at least a portion of the overmold.