# US 10,864,370 B2 · Multi-loop coupling for lead extension and extraction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,864,370 B2 - Document ID: US10864370B2 - Status: Granted - Kind: B2 - Application number: 16/160,938 - Filed: 2018-10-15 - Published: 2019-02-14 - Granted: 2020-12-15 - Earliest claimed: 2014-12-30 - Assignees: Koninklijke Philips N.V. - Applicants: Koninklijke Philips N.V. - Inventors: Kenneth P Grace - Web page: https://patentgrep.com/patent/US10864370B2 ## CPC - A61N 1/056: {Transvascular endocardial electrode systems} - A61B 17/221: Gripping devices in the form of loops or baskets {for gripping calculi or similar types of obstructions (surgical snare instruments A61B17/32056)} - A61B 17/32056: {Surgical snare instruments (for removing or smashing calculi A61B2017/2212; tonsillotomes A61B17/26)} - A61B 2017/00358: {Snares for grasping} - A61B 2017/2212: {having a closed distal end, e.g. a loop} - A61N 1/0587: {Epicardial electrode systems; Endocardial electrodes piercing the pericardium} - A61N 2001/0578: {having means for removal or extraction} - 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) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A device for extending a lead according to an embodiment of the present disclosure includes a body, wherein the body is elongated and includes at least two apertures; a first filament loop comprising a filament, the filament extending along the inner surface of the body and through at least one of the at least two apertures, the first filament loop extending outside the outer surface of the body; a second filament loop extending outside the outer surface of the body; the first and second filament loops arranged so as to receive therethrough a lead, the first and second filament loops being tightenable about the lead in a manner that grips the lead between the first and second filament loops and an outer surface of the lead; and a tether coupled to the lead via one or more of the body, the first filament loop, and the second filament loop. ## Claims ### Claim 1 A device for extending a lead, comprising: an elongate body having a longitudinal axis and a circumference, wherein the elongate body includes a lumen and a wall, the wall including a first aperture, a second aperture, a third aperture, and a fourth aperture, the second aperture being distally positioned relative to the first aperture, the third aperture being distally positioned relative to the second aperture, the fourth aperture being distally positioned relative to the third aperture, wherein the first aperture and the second aperture are offset along the longitudinal axis and offset along the circumference, wherein the first aperture and the third aperture are offset along the longitudinal axis and offset along the circumference, wherein the second aperture and the fourth aperture are offset along the longitudinal axis and offset along the circumference, wherein the third aperture and the fourth aperture are offset along the longitudinal axis and offset along the circumference; a filament comprising: a first filament loop extending along the lumen and through the first aperture and the second aperture; and a second filament loop extending along the lumen and through the third aperture and the fourth aperture; wherein the first and second filament loops are arranged to receive a lead. ### Claim 2 (depends on 1) The device of claim 1, wherein the elongate body is tubular and includes an opening at a distal end of the elongate body, wherein the filament further comprises a third filament loop, and wherein the third filament loop extends through the opening. ### Claim 3 (depends on 1) The device of claim 1, further comprising a third filament loop extending outside the outer surface of the elongate body, the first, second, and third filament loops arranged to receive therethrough the lead, the first, second, and third filament loops being tightenable about the lead to grip at least a portion of the outer surface of the lead against the elongate body. ### Claim 4 (depends on 1) The device of claim 1, wherein the filament is of a construct selected from the group consisting of monofilament wire, multifilament wire, monofilament suture, multifilament suture, and braided strands. ### Claim 5 (depends on 1) The device of claim 1, wherein each of the first and second filament loops comprise at least a half twist outside the outer surface of the elongate body. ### Claim 6 (depends on 1) The device of claim 1, wherein the filament is fixedly coupled to the elongate body on one side of the first filament loop. ### Claim 7 (depends on 1) The device of claim 1, wherein the filament further comprises an end coupled to the elongate body. ### Claim 8 (depends on 7) The device of claim 7, wherein the end of the filament is fixedly attached to the elongate body. ### Claim 9 (depends on 1) The device of claim 1, wherein the first and second filament loops are configured to simultaneously tighten about the lead to grip at least a portion of the lead against the elongate body. ### Claim 10 (depends on 1) The device of claim 1, further comprising a means for transferring a tension force to the lead. ### Claim 11 (depends on 10) The device of claim 10 wherein the means for transferring a tension force to the lead comprises the elongate body and at least one of the first filament loop or the second filament loop. ### Claim 12 (depends on 11) The device of claim 11 wherein the means for transferring a tension force to the lead comprises the elongate body, the first filament loop, and the second filament loop. ### Claim 13 (depends on 11) The device of claim 11, wherein the means for transferring a tension force to the lead comprises a tether.