# US 12,213,790 B2 · Ring-shaped biometric signal sensing device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,213,790 B2 - Document ID: US12213790B2 - Status: Granted - Kind: B2 - Application number: 17/604,176 - Filed: 2020-03-18 - Published: 2022-06-23 - Granted: 2025-02-04 - Earliest claimed: 2019-04-25 - Assignees: Sky Labs Inc. - Applicants: Sky Labs Inc. - Inventors: Byung Hwan Lee; Chang Hyun Baik; Dong Hyun Lee - Web page: https://patentgrep.com/patent/US12213790B2 ## CPC - A61B 5/256: Wearable electrodes, e.g. having straps or bands - A61B 5/02141: {Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits (A61B5/02233, A61B5/0235 take precedence)} - A61B 5/02438: {with portable devices, e.g. worn by the patient} - A61B 5/0245: by using sensing means generating electric signals, {i.e. ECG signals} - A61B 5/24: Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof - A61B 5/28: for electrocardiography [ECG] - A61B 5/6826: {Finger} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A ring-shaped biometric signal sensing device according to an embodiment of the present invention comprises: a first electrode (10), which is provided in a ring shape, is formed of conductors, and is fitted on a user's finger so as to make contract with the finger; a second electrode (20), which is assembled on the outside of the first electrode (10), is formed of conductors, and makes contact with the user's body; an insulation unit (30), which includes the first electrode (10) and is insert-injected so as to maintain insulation between the first electrode (10) and the second electrode (20); and a control unit (40), which is arranged in the insulation unit (30), includes a biometric sensor, and collects biometric signals when the second electrode (20) makes contact with the user's body. ## Claims ### Claim 1 A ring-shaped biometric signal sensing device comprising: a first electrode having a ring shape and a conductor, the first electrode being configured to be worn on a finger of a user and to be in contact with the finger; a second electrode disposed on an outside of the first electrode, having a conductor, and configured to be in contact with a body of the user; an insulating unit disposed between the first electrode and the second electrode to maintain insulation between the first electrode and the second electrode; and a controller disposed in the insulating unit, including a biometric sensor, and configured to collect a biometric signal when the second electrode comes into contact with the body of the user, wherein the insulating unit has a flexible material, and a portion of the insulating unit penetrates the first electrode and is configured to be in close contact with the finger of the user when worn by the user, and wherein the controller is configured to collect the biometric signal of the user when the second electrode contacts and releases contact with a portion of the body of the user other than the finger once or twice in a row. ### Claim 2 (depends on 1) The ring-shaped biometric signal sensing device of claim 1, wherein the biometric signal has at least one of an electrocardiogram signal, a blood pressure signal, or a pulse signal or a combination thereof. ### Claim 3 (depends on 1) The ring-shaped biometric signal sensing device of claim 1, wherein the controller comprises a communication module connected to a communication terminal and configured to transmit data of the biometric signal. ### Claim 4 (depends on 1) The ring-shaped biometric signal sensing device of claim 1, wherein a rim is disposed at an outer periphery of the first electrode, an insulating layer is disposed on the rim, the insulating layer being configured to insulate the first electrode and the second electrode from each other. ### Claim 5 (depends on 1) The ring-shaped biometric signal sensing device of claim 1, wherein: the first electrode has a hole; the insulating unit has a protrusion protruding inwards, wherein the protrusion is disposed in and through the hole and an edge of the protrusion is aligned with an edge of the hole. ### Claim 6 (depends on 5) The ring-shaped biometric signal sensing device of claim 5, wherein: a surface of the protrusion has a flat surface shape; and a flat surface of the protrusion is configured to be in close contact with the finger of the user. ### Claim 7 (depends on 6) The ring-shaped biometric signal sensing device of claim 6, wherein the first electrode has two holes and the insulating unit has two protrusions. ### Claim 8 A ring-shaped biometric signal sensing device comprising: a first electrode having a ring shape and a conductor, the first electrode being configured to be worn on a finger of a user to be in contact with the finger; a second electrode disposed on an outside of the first electrode, having a conductor, and configured to be in contact with a body of the user; an insulating unit disposed between the first electrode and the second electrode to maintain insulation between the first electrode and the second electrode; and a controller disposed in the insulating unit, including a biometric sensor, and configured to collect a biometric signal when the second electrode comes into contact with the body of the user, wherein the controller is configured to collect the biometric signal of the user when the second electrode contacts and releases contact with a portion of the body of the user other than the finger once or twice in a row. ### Claim 9 A ring-shaped biometric signal sensing device comprising: a first electrode having a ring shape and a conductor, the first electrode being configured to be worn on a finger of a user and to be in contact with the finger; a second electrode disposed on an outside of the first electrode, having a conductor, and configured to be in contact with a body of the user; an insulating unit disposed between the first electrode and the second electrode to maintain insulation between the first electrode and the second electrode; and a controller disposed in the insulating unit, including a biometric sensor, and configured to collect a biometric signal when the second electrode comes into contact with the body of the user, wherein the insulating unit has a flexible material, and a portion of the insulating unit penetrates the first electrode and is configured to be in close contact with the finger of the user when worn by the user, wherein the first electrode has a hole, and the insulating unit has a protrusion protruding inwards, wherein the protrusion is disposed in and through the hole and an edge of the protrusion is aligned with an edge of the hole, wherein a surface of the protrusion has a flat surface shape, and a flat surface of the protrusion is configured to be in close contact with the finger of the user, and wherein the first electrode has two holes and the insulating unit has two protrusions.