US 11,850,422 B2
Electrodes for electrical stimulation to treat cancer
Brian L Schmidt, White Bear Lake, MN (US); Devon N. Arnholt, Shoreview, MN (US); Keith R. Maile, New Brighton, MN (US); Sarah Melissa Gruba, Vadnais Heights, MN (US); and William J. Linder, Golden Valley, MN (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Apr. 22, 2020, as Appl. No. 16/855,433.
Claims priority of provisional application 62/837,390, filed on Apr. 23, 2019.
Prior Publication US 2020/0338345 A1, Oct. 29, 2020
Int. Cl. A61N 1/36 (2006.01); A61N 1/05 (2006.01); A61N 1/08 (2006.01); A61L 31/16 (2006.01)
CPC A61N 1/36002 (2017.08) [A61L 31/16 (2013.01); A61N 1/05 (2013.01); A61N 1/08 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A medical device system for treating a cancerous tissue, comprising:
an implantable medical device comprising:
an electric field generating circuit configured to generate one or more electric fields at or near a site of the cancerous tissue;
control circuitry in communication with the electric field generating circuit, the control circuitry configured to control delivery of the one or more electric fields from the electric field generating circuit to the site of the cancerous tissue;
wherein the control circuitry causes the electric field generating circuit to generate the one or more electric fields at frequencies selected from a range of between 10 kHz to 1 MHz using currents ranging from 1 mAmp to 1000 mAmp; and
an implantable lead comprising:
a lead body comprising a proximal end and a distal end, the lead body comprising a first electrical conductor disposed within the lead body; and
a first electrode coupled to the lead body, the first electrode in electrical communication with the first electrical conductor, wherein the first electrical conductor forms part of an electrical circuit by which the electric fields from the electric field generating circuit are delivered to the site of the cancerous tissue; and
a stent coupled to the lead body at a distal portion thereof;
wherein the stent comprises a stent frame formed of a bioerodible material.