# US 10,946,190 B2 · Epicardial defibrilation lead with side helix fixation and placement thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,946,190 B2 - Document ID: US10946190B2 - Status: Granted - Kind: B2 - Application number: 16/227,309 - Filed: 2018-12-20 - Published: 2019-04-25 - Granted: 2021-03-16 - Earliest claimed: 2015-08-12 - Assignees: Medtronic, Inc. - Applicants: Medtronic, Inc. - Inventors: Mark T. Marshall; Andrea J. Asleson; Jean Rutten - Web page: https://patentgrep.com/patent/US10946190B2 ## CPC - A61N 1/059: {Anchoring means} - A61N 1/36514: {controlled by a physiological quantity other than heart potential, e.g. blood pressure (controlled by two or more physical parameters A61N1/36585)} - A61N 1/3956: {Implantable devices for applying electric shocks to the heart, e.g. for cardioversion} - A61N 1/3987: {characterised by the timing or triggering of the shock} - A61N 1/0592: {Introducing the lead through the pericardium with a needle} - A61N 1/365: controlled by a physiological parameter, e.g. heart potential {(evoked response A61N1/371)} - A61N 1/3968: {Constructional arrangements, e.g. casings (A61N1/375 takes precedence)} - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) ## Abstract A method and system for employing a medical device is disclosed. The medical device includes a housing, a processor disposed within the housing, a connector module, and a medical electrical epicardial lead connected to the processor through the connector module. The epicardial lead is used to sense a cardiac signal from tissue of a patient. The lead comprises an insulative lead body that includes a proximal end and a distal end, at least one conductor disposed in the lead body, and a side helical fixation member, disposed a distance from the distal end, the side helical fixation member. The side helical fixation member comprises a set of windings configured to wrap around the lead body circumference. The side helical fixation member includes a distal tip comprising a sharpened elongated flat free end that is perpendicular to the lead body and angled toward an inside of the set of windings. ## Claims ### Claim 1 A medical device system comprising: a delivery device having a proximal end and a distal end with an interior therebetween, the distal end having a distal tip and an opening to an interior of the delivery device, the opening extending longitudinally proximal from the distal end of the device, the opening defined by longitudinally extending side edges and a distal edge at the distal end of the delivery device; an implantable medical electrical epicardial lead that comprises: (a) an insulative lead body that includes a proximal end and a distal end; (b) at least one conductor disposed in the lead body; and (c) a side helical fixation member, disposed a distance from the distal end, the side helical fixation member comprising a set of windings configured to wrap around the lead body circumference, the side helical fixation member including a distal tip comprising a sharpened elongated free end and comprising a final one of the windings defining an angle of 15 degrees or less with regard to a line perpendicular to the centerline. ### Claim 2 (depends on 1) The medical device system of claim 1 wherein the distal tip of the delivery device includes a concave surface. ### Claim 3 (depends on 1) The medical device system of claim 1 wherein the distal tip of the delivery device includes a curved distal edge. ### Claim 4 (depends on 1) The medical device system of claim 1 wherein the distal tip of the delivery device includes a straight distal edge. ### Claim 5 (depends on 1) The medical device system of claim 1 wherein the distal tip of the delivery device includes a straight distal edge and smooth side edges. ### Claim 6 (depends on 1) The medical device system of claim 1 wherein the distal tip of the delivery device includes a straight distal edge and side edges without sharp edges. ### Claim 7 (depends on 1) The medical device system of claim 1 wherein the distal tip of the delivery device includes a rectangular opening. ### Claim 8 (depends on 1) The medical device system of claim 1 wherein the distal tip of the delivery device includes an elliptical opening. ### Claim 9 (depends on 1) The medical device system of claim 1 wherein the distal tip of the delivery device is movable over the side helical fixation member. ### Claim 10 (depends on 1) The kit of claim 1 wherein the distal tip of the delivery device includes a straight distal edge and side edges without sharp edges. ### Claim 11 A kit comprising: a delivery device having a proximal end and a distal end with an interior therebetween, the distal end having a distal tip and an opening to an interior of the delivery device, the opening extending longitudinally proximal from the distal end of the device, the opening defined by longitudinally extending side edges and a distal edge at the distal end of the delivery device; an implantable medical electrical epicardial lead that comprises: (a) an insulative lead body that includes a proximal end and a distal end; (b) at least one conductor disposed in the lead body; and (c) a side helical fixation member, disposed a distance from the distal end, the side helical fixation member comprising a set of windings configured to wrap around the lead body circumference, the side helical fixation member including a distal tip comprising a sharpened elongated free end and comprising a final one of the windings defining an angle of 15 degrees or less with regard to a line perpendicular to the centerline. ### Claim 12 (depends on 11) The kit of claim 11 wherein the distal tip of the delivery device is movable over the side helical fixation member. ### Claim 13 (depends on 11) The kit of claim 11 wherein the distal tip of the delivery device includes a concave surface. ### Claim 14 (depends on 11) The kit of claim 11 wherein the distal tip of the delivery device includes a curved distal edge. ### Claim 15 (depends on 11) The kit of claim 11 wherein the distal tip of the delivery device includes a straight distal edge. ### Claim 16 (depends on 11) The kit of claim 11 wherein the distal tip of the delivery device includes a straight distal edge and smooth side edges. ### Claim 17 (depends on 11) The kit of claim 11 wherein the distal tip of the delivery device includes a rectangular opening. ### Claim 18 (depends on 11) The kit of claim 11 wherein the distal tip of the delivery device includes an elliptical opening.