# US 2025/0082945 A1 · Coiled ring contacts for electrical stimulation systems and methods of making and using same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0082945 A1 - Document ID: US20250082945A1 - Status: Published application - Kind: A1 - Application number: 18/882,583 - Filed: 2024-09-11 - Published: 2025-03-13 - Earliest claimed: 2023-09-13 - Assignees: Boston Scientific Neuromodulation Corporation - Applicants: Boston Scientific Neuromodulation Corporation - Inventors: Ranjan Krishna Mukhari Nageri; Austin Cisna; Alexander Daniel Gredzens; Himanshu Ranpura - Web page: https://patentgrep.com/patent/US20250082945A1 ## CPC - A61N 1/3752: {Details of casing-lead connections} - A61N 1/3754: {Feedthroughs} - H01R 13/187: with spring member in the socket - H01R 24/58: Contacts spaced along longitudinal axis of engagement - H01R 2201/12: for medicine and surgery - 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) - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract A connector assembly includes a coiled ring contact having a contact housing with a first part and a second part attached to the first part, wherein at least the first part includes a first radial sidewall and a first lateral sidewall extending laterally from the first radial sidewall, the first radial sidewall and the first lateral sidewall defining a pocket. The coiled ring contact also includes a coiled ring disposed within the contact housing, wherein the coiled ring contact is configured for disposal of the coiled ring within the pocket defined by the first part of the contact housing and prior to attachment of the second part to the first part. ## Claims ### Claim 1 A connector assembly, comprising: a connector body having an elongated shape with a first end, an opposing second end, and a longitudinal axis, the connector body defining a port at the first end configured to receive a proximal part of a lead or lead extension; and a plurality of coiled ring contacts axially spaced-apart within the connector body and collectively forming a lumen that extends from the port along the longitudinal axis of the connector body, each coiled ring contact comprising a contact housing comprising a first part and a second part attached to the first part, wherein at least the first part comprises a first radial sidewall and a first lateral sidewall extending laterally from the first radial sidewall, the first radial sidewall and the first lateral sidewall defining a pocket, and a coiled ring disposed within the contact housing, wherein the coiled ring contact is configured for disposal of the coiled ring within the pocket defined by the first part of the contact housing and prior to attachment of the second part to the first part, wherein the coiled ring is positioned within the contact housing so that insertion of the proximal part of the lead or lead extension through the coiled ring contact results in contact between the coiled ring and the lead or lead extension. ### Claim 2 (depends on 1) The connector assembly of claim 1, wherein the coiled ring is disposed within the pocket defined by the first part of the contact housing without deformation of the coiled ring. ### Claim 3 (depends on 1) The connector assembly of claim 1, wherein the coiled ring is disposed within the pocket defined by the first part of the contact housing without asymmetric deformation of the coiled ring. ### Claim 4 (depends on 1) The connector assembly of claim 1, wherein the second part comprises a second radial sidewall and a second lateral sidewall extending laterally from the second radial sidewall. ### Claim 5 (depends on 4) The connector assembly of claim 4, wherein the first lateral sidewall and the second lateral sidewall are attached to each other by ends thereof. ### Claim 6 (depends on 4) The connector assembly of claim 4, wherein the first lateral sidewall is disposed radially inward from the second lateral sidewall. ### Claim 7 (depends on 4) The connector assembly of claim 4, wherein the first part further comprises a perimeter sidewall extending laterally from the first lateral sidewall, wherein the perimeter sidewall has a radial thickness that is less than a radial thickness of the first lateral sidewall, wherein at least a portion of the second lateral sidewall is disposed radially inward from the perimeter sidewall. ### Claim 8 (depends on 1) The connector assembly of claim 1, wherein the first part further comprises a first lateral tab extending laterally from the first lateral sidewall, wherein the perimeter sidewall has a radial thickness that is less than a radial thickness of the first lateral sidewall, wherein at least a portion of the second part is disposed radially inward from the first lateral tab. ### Claim 9 (depends on 1) The connector assembly of claim 1, wherein the second part is a flat disc having an opening therethrough. ### Claim 10 (depends on 1) The connector assembly of claim 1, wherein the first and second parts define a groove within which at least a portion of the coiled ring is disposed, wherein the groove has at least a portion with a circular, semicircular, elliptical, or oval shape. ### Claim 11 (depends on 1) The connector assembly of claim 1, wherein the first and second parts define a groove within which at least a portion of the coiled ring is disposed, wherein the groove has at least a portion with a triangular shape. ### Claim 12 (depends on 1) The connector assembly of claim 1, wherein the first and second parts define a groove within which at least a portion of the coiled ring is disposed, wherein the groove has at least a portion with a square or rectangular shape. ### Claim 13 (depends on 1) A lead assembly, comprising: a lead or a lead extension having a proximal portion and a distal portion, wherein the proximal portion of the lead or the lead extension comprises a plurality of terminals electrically insulated from one another; and the connector assembly of claim 1. ### Claim 14 (depends on 13) An electrical stimulating system comprising: the lead assembly of claim 13; and a control module coupled to the lead assembly, the control module comprising a housing, and an electronic subassembly disposed in the housing, wherein connector assembly is part of the control module. ### Claim 15 (depends on 13) An electrical stimulating system comprising: the lead assembly of claim 13; and a lead extension coupleable to the control module and the lead, wherein the connector assembly is part of the lead extension. ### Claim 16 A coiled ring contact, comprising: a contact housing comprising a first part and a second part attached to the first part, wherein at least the first part comprises a first radial sidewall and a first lateral sidewall extending laterally from the first radial sidewall, the first radial sidewall and the first lateral sidewall defining a pocket; and a coiled ring disposed within the contact housing, wherein the coiled ring contact is configured for disposal of the coiled ring within the pocket defined by the first part of the contact housing and prior to attachment of the second part to the first part, wherein the coiled ring is positioned within the contact housing so that insertion of a proximal part of a lead or lead extension through the coiled ring contact results in contact between the coiled ring and the lead or lead extension. ### Claim 17 (depends on 16) A method of making the coiled ring contact of claim 16, the method comprising: disposing the coiled ring into the pocket defined by the first radial sidewall and the first lateral sidewall of the first part; and attaching the second part to the first part with the coiled ring disposed therebetween. ### Claim 18 (depends on 17) The method of claim 17, wherein the second part comprises a second radial sidewall and a second lateral sidewall extending laterally from the second radial sidewall, wherein attaching the second part to the first part comprises attaching the first lateral sidewall to the second lateral sidewall by ends thereof. ### Claim 19 (depends on 17) The method of claim 17, wherein the second part is a flat disc having an opening therethrough. ### Claim 20 (depends on 17) The method of claim 17, wherein the second part comprises a second radial sidewall and a second lateral sidewall extending laterally from the second radial sidewall, wherein the first lateral sidewall is disposed radially inward from the second lateral sidewall.