# US 2019/0314636 A1 · Lateral fixation for cardiac pacing lead > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0314636 A1 - Document ID: US20190314636A1 - Status: Published application - Kind: A1 - Application number: 16/385,935 - Filed: 2019-04-16 - Published: 2019-10-17 - Earliest claimed: 2018-04-16 - Assignees: Cardiac Pacemakers, Inc. - Applicants: Cardiac Pacemakers, Inc. - Inventors: Allan C. Shuros; Arthur J. Foster - Web page: https://patentgrep.com/patent/US20190314636A1 ## CPC - A61N 1/37518: {Anchoring of the implants, e.g. fixation} - A61N 1/0573: {chacterised by means penetrating the heart tissue, e.g. helix needle or hook} - A61N 1/37512: {Pacemakers} - 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 Various aspects of the present disclosure are directed toward apparatuses, methods and systems that include implantable lead. The implantable lead may include an electrode arranged and a fixation element arranged about the lead body. The fixation element may extend circumferentially about the lead body. ## Claims ### Claim 1 An implantable lead comprising: a lead body; an electrode arranged near a distal end of the lead body and extending about a portion of an exterior surface of the lead body; and a fixation element arranged about the lead body and extending circumferentially about the lead body radially adjacent to the electrode and configured to rotate about the lead body to anchor the lead to a tissue wall. ### Claim 2 (depends on 1) The implantable lead of claim 1, wherein the fixation element is configured to collapse toward the exterior surface of the lead body in response to rotation about the lead body. ### Claim 3 (depends on 1) The implantable lead of claim 1, wherein the lead body is to deploy substantially perpendicular to the tissue wall and the fixation element is configured to lessen a distance between the electrode and the tissue wall in response to rotation about the lead body. ### Claim 4 (depends on 1) The implantable lead of claim 1, wherein the fixation element includes a helical shape angled about the lead body. ### Claim 5 (depends on 1) The implantable lead of claim 1, wherein the electrode is at least one of level with the exterior surface of the lead body and angled relative to the exterior surface of the lead body. ### Claim 6 (depends on 1) The implantable lead of claim 1, wherein the fixation element is coupled to the lead body at a fixed position, and the fixation element is configured to pivot about the fixed position. ### Claim 7 (depends on 4) The implantable lead of claim 4, wherein a portion of the fixation element extends into a lumen of the lead body at the fixed position. ### Claim 8 (depends on 7) The implantable lead of claim 7, further comprising a drive mechanism arranged within the lumen of the lead body and coupled to the fixation element, the drive mechanism being configured to control rotation of the fixation element about the lead body. ### Claim 9 (depends on 1) The implantable lead of claim 1, wherein the electrode is radially focused relative to the lead body and configured to pace a HIS bundle of a patient. ### Claim 10 A system comprising: an implantable lead comprising: a lead body including an outer tubular portion defining an exterior surface of the lead body, an electrode arranged near a distal end of the lead body, and a fixation element extending circumferentially about the lead body radially adjacent to the electrode; and a drive mechanism being configured to effect rotation of the fixation element about the lead body; and a stylet configured to interact with the drive mechanism and control the rotation of the fixation element. ### Claim 11 (depends on 10) The system of claim 10, further comprising a delivery sheath configured to deliver the lead body to a target location and configure to deploy the fixation element, wherein the fixation element is configured to release to a nominal position about the lead body upon deployment from the delivery sheath. ### Claim 12 (depends on 11) The implantable lead of claim 11, wherein the fixation element comprises a shape memory material, and the fixation element is collapsed against the leady body prior to deployment from the delivery sheath. ### Claim 13 (depends on 10) The system of claim 10, wherein a portion of the fixation element extends into a lumen of the lead body and the drive mechanism is arranged within the lumen of the lead body and coupled to the fixation element. ### Claim 14 (depends on 13) The system of claim 13, wherein the drive mechanism includes a nut and a threaded rod, and the drive mechanism is configured to rotate the fixation element about the lead body in response to rotation of the nut. ### Claim 15 (depends on 14) The system of claim 14, wherein the drive mechanism includes a safety mechanism configured to stop rotation of the nut and facilitate placement of the fixation element in the tissue. ### Claim 16 (depends on 10) The system of claim 10, wherein the stylet configured to pass through the lumen of the lead body and to interact with the drive mechanism to rotate the nut and effect rotation of the fixation element about the lead body. ### Claim 17 (depends on 10) The system of claim 10, wherein the fixation element is coupled to the lead body at a fixed position, and the fixation element is configured to pivot about the fixed position. ### Claim 18 A method of deploying a lead at a target location, the method comprising: delivering a lead body to the target location, the lead body including a proximal end and a distal end, and an outer tubular portion defining an exterior surface of the lead body, an electrode arranged near a distal end of the lead body, and a fixation element arranged about the lead body and extending circumferentially about the lead body radially adjacent to the electrode; and rotating the fixation element about the lead body to anchor the lead to a tissue wall and initiate contact between the electrode and the tissue wall. ### Claim 19 (depends on 18) The method of claim 18, wherein delivering the lead body includes arranging the electrode perpendicular to the tissue wall and rotating the fixation element lessens a distance between the electrode and the tissue wall. ### Claim 20 (depends on 18) The method of claim 18, wherein rotating the fixation element includes collapsing the fixation element toward the exterior surface of the lead body.