# US 11,309,662 B2 · Electrical connector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,309,662 B2 - Document ID: US11309662B2 - Status: Granted - Kind: B2 - Application number: 17/038,255 - Filed: 2020-09-30 - Published: 2021-01-14 - Granted: 2022-04-19 - Earliest claimed: 2018-09-10 - Assignees: Vadovations, Inc. - Applicants: VADovations, Inc. - Inventors: J. Ryan Stanfield; Timothy R. Maher; Trevor A. Snyder; Andrew Matthews - Web page: https://patentgrep.com/patent/US11309662B2 ## CPC - H01R 13/6275: {Latching arms not integral with the housing (H01R13/6276, H01R13/6277, H01R13/6278 take precedence)} - A61N 1/3625: {External stimulators} - A61N 1/3787: {from an external energy source} - H01R 13/08: Resiliently-mounted rigid pins or blades - H01R 13/111: {co-operating with pins having a circular transverse section} - H01R 13/187: with spring member in the socket - H01R 13/20: Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together - H01R 13/44: Means for preventing access to live contacts {(making use of a switch actuated by engagement of counterpart H01R13/7036)} - H01R 13/6272: {comprising a single latching arm} - H01R 13/635: by mechanical pressure, e.g. spring force - H01R 13/641: by indicating incorrect coupling; by indicating correct or full engagement - H01R 13/703: operated by engagement or disengagement of coupling parts, {e.g. dual-continuity coupling part}(H01R13/71 takes precedence) - A61N 1/362: Heart stimulators (heart defibrillators A61N1/39) - H01R 12/53: connecting to cables except for flat or ribbon cables - H01R 24/58: Contacts spaced along longitudinal axis of engagement - H01R 2105/00: Three poles - H01R 2201/12: for medicine and surgery - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS - 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 An electrical connector includes a plug that mates with a receptacle. In a medical application, the plug is connected to electrical leads that pass through a patient's skin to an implanted medical device in the patient's body, while the receptacle is connected to external medical equipment. All electrical contacts in the plug are on internal portions. The receptacle includes annular contacts that contact the internal electrical contacts on the plug when the plug and receptacle are properly mated. The receptacle includes a plurality of annular electrical contacts that have a first diameter and are separated by a plurality of annular insulators having a second diameter smaller than the first diameter. ## Claims ### Claim 1 An electrical connector comprising: a plug comprising a body portion having a substantially hollow interior portion and having a plurality of electrical contacts within the substantially hollow interior portion of the body portion, wherein the plug comprises an annular recess on an exterior of the body portion; and a receptacle comprising a plurality of annular electrical contacts that contact the plurality of electrical contacts on the plug when the plug is mated to the receptacle, wherein the plug can be rotated within the receptacle while maintaining electrical contact between the plurality of annular electrical contacts on the receptacle and the plurality of electrical contacts on the plug, wherein the receptacle comprises at least one retention arm that engages the annular recess on the plug when the plug is properly mated with the receptacle to maintain the plug properly mated with the receptacle, wherein the receptacle further comprises a movable portion and a fixed portion, wherein the movable portion slides with respect to the fixed portion, wherein the movable portion on the receptacle disengages the at least one retention arm from the annular recess on the plug when the movable portion is slid with respect to the fixed portion of the receptacle. ### Claim 2 (depends on 1) The electrical connector of claim 1 wherein each of the plurality of annular electrical contacts in the receptacle comprises: a substantially cylindrical exterior portion; a substantially hollow interior portion; and an interior connection point that includes a hollow interior for receiving a connecting rod. ### Claim 3 (depends on 2) The electrical connector of claim 2 where each of the plurality of annular electrical contacts in the receptacle further comprises: a rounded or chamfered edge; and an offset slit. ### Claim 4 (depends on 1) The electrical connector of claim 1 wherein each of the plurality of annular insulators in the receptacle comprises: a substantially cylindrical configuration with an outer portion and a substantially hollow interior portion that resembles a section of plastic pipe. ### Claim 5 (depends on 1) The electrical connector of claim 1 wherein each of the plurality of annular electrical contacts in the receptacle comprises a substantially cylindrical member having an offset slit that gives each of the plurality of annular electrical contacts a spring-like action when the plug is mated to the receptacle. ### Claim 6 (depends on 5) The electrical connector of claim 5 wherein plugging the plug into the receptacle causes each of the plurality of annular electrical contacts to compress to a slightly smaller diameter, thereby providing the spring-like action that maintains contact with a corresponding electrical contact in the plug. ### Claim 7 An electrical connector comprising: a plug comprising a body portion having a plurality of electrical contacts on an interior of the body portion, wherein the plug comprises an annular recess on an exterior of the body portion; and a receptacle comprising a plurality of annular electrical contacts that contact the plurality of electrical contacts on the plug when the plug is mated to the receptacle, wherein the plug can be rotated within the receptacle while maintaining electrical contact between the plurality of annular electrical contacts on the receptacle and the plurality of electrical contacts on the plug, wherein the receptacle comprises at least one retention arm that engages the annular recess on the plug when the plug is properly mated with the receptacle to maintain the plug properly mated with the receptacle, wherein the receptacle further comprises a movable portion and a fixed portion, wherein the movable portion slides with respect to the fixed portion, wherein the movable portion on the receptacle disengages the at least one retention arm from the annular recess on the plug when the movable portion is slid with respect to the fixed portion of the receptacle; wherein the at least one retention arm comprises two retention arms pivotally coupled to a same pivot point to provide a scissor-like action with respect to each other, each retention arm comprising a tip portion configured to engage the annular recess on the plug, wherein the electrical connector further comprises a spring between the two retention arms to bias the tip portions in a closed position. ### Claim 8 (depends on 7) The electrical connector of claim 7 wherein each tip portion of the two retention arms comprises a beveled front surface that allows the plug to slide along the beveled front surface to partially separate the tip portions, the two tip portions of the two retention arms separating from each other and sliding along the body of the plug as the plug is pushed into the receptacle until the plug is in a desired position, at which point the two tip portions engage the annular recess in the plug to keep the plug mated to the receptacle. ### Claim 9 An electrical connector comprising: a plug comprising a body portion having a plurality of electrical contacts on an interior of the body portion, wherein the plug comprises an annular recess on an exterior of the body portion; and a receptacle comprising a plurality of annular electrical contacts that contact the plurality of electrical contacts on the plug when the plug is mated to the receptacle, wherein the plug can be rotated within the receptacle while maintaining electrical contact between the plurality of annular electrical contacts on the receptacle and the plurality of electrical contacts on the plug, wherein the receptacle comprises at least one retention arm that engages the annular recess on the plug when the plug is properly mated with the receptacle to maintain the plug properly mated with the receptacle, wherein the receptacle further comprises a movable portion and a fixed portion, wherein the movable portion slides with respect to the fixed portion, wherein the movable portion on the receptacle disengages the at least one retention arm from the annular recess on the plug when the movable portion is slid with respect to the fixed portion of the receptacle; wherein the at least one retention arm comprises two retention arms pivotally coupled to a same pivot point to provide a scissor-like action with respect to each other, each retention arm comprising a tip portion configured to engage the annular recess on the plug, wherein the electrical connector further comprises a spring between the two retention arms to bias the tip portions in a closed position wherein the receptacle comprises an ejection spring that is compressed by the plug for the tip portions of the retention arms to engage the annular recess in the plug.