# US 11,304,625 B2 · Gas sensor kit and device wearable on face > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,304,625 B2 - Document ID: US11304625B2 - Status: Granted - Kind: B2 - Application number: 16/087,319 - Filed: 2017-06-02 - Published: 2019-04-04 - Granted: 2022-04-19 - Earliest claimed: 2016-06-14 - Assignees: Nihon Kohden Corporation - Applicants: Nihon Kohden Corporation - Inventors: Fumihiko Takatori; Masayuki Inoue; Kenichiro Kabumoto - Web page: https://patentgrep.com/patent/US11304625B2 ## CPC - A61B 5/097: Devices for facilitating collection of breath or for directing breath into or through measuring devices - A61B 5/082: {Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath (A61B5/083, A61B5/091 take precedence)} - A61B 5/6803: {Head-worn items, e.g. helmets, masks, headphones or goggles} - A61M 16/0488: {Mouthpieces; Means for guiding, securing or introducing the tubes (guiding or introducing with laryngoscopes A61B1/267; holding devices on the body A61M25/02)} - A61M 16/0666: {Nasal cannulas or tubing (devices for improving normal breathing through the nose A61F5/08; nose filters A62B23/06; outside holding devices A61M25/02)} - A61M 16/0672: {Nasal cannula assemblies for oxygen therapy} - A61M 16/085: {Gas sampling} - A61M 16/0858: {Pressure sampling ports} - A61B 5/6819: {Nose} - A61B 2560/0443: Modular apparatus - A61M 2202/0208: Oxygen - A61M 2230/43: Composition of exhalation - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A gas sensor kit includes a gas sensor that measures a gas concentration of an exhalation gas of a subject, a gas introduction part that introduces the exhalation gas of the subject to the gas sensor and a gas supply unit that supplies a therapeutic gas to the subject. In the gas sensor kit, the gas supply unit includes a flow rate adjusting part that adjusts flow rate of the therapeutic gas. ## Claims ### Claim 1 A gas sensor kit comprising: a gas sensor that measures a gas concentration of an exhalation gas of a subject; a gas introduction part that introduces the exhalation gas of the subject to the gas sensor; and a gas supply unit that supplies a therapeutic gas to the subject, wherein the gas supply unit includes a flow rate adjusting part that is configured to impede a flow of the therapeutic gas to the subject to thereby lower a flow rate of the therapeutic gas to the subject, wherein the flow rate adjusting part is a porous member that is disposed in a gas inflow port from a supply source of the therapeutic gas. ### Claim 2 (depends on 1) The gas sensor kit according to claim 1, wherein the porous member includes a sponge. ### Claim 3 (depends on 1) The gas sensor kit according to claim 1, wherein the flow rate adjusting part adjusts an inflow direction of the therapeutic gas to be diffused. ### Claim 4 A device wearable on a face comprising: a gas introduction part that introduces an exhalation gas of a subject to a gas sensor that measures gas concentration of the exhalation gas of the subject; and a gas supply unit that is configured to be attachable to and detachable from the gas sensor or the gas introduction part, and supplies therapeutic gas to the subject, wherein the gas supply unit includes a flow rate adjusting part that is configured to impede a flow of the therapeutic gas to the subject to thereby lower a flow rate of the therapeutic gas to the subject, wherein the flow rate adjusting part is a porous member that is disposed in a gas inflow port from a supply source of the therapeutic gas. ### Claim 5 A gas sensor kit that measures exhalation gas concentration of a subject while insufflating therapeutic gas to the subject, the gas sensor kit comprising: a flow rate adjusting part that is configured to impede a flow of the therapeutic gas to the subject to thereby lower a flow rate of the therapeutic gas flowing in a gas flow path from a supply source of the therapeutic gas to the subject, wherein the flow rate adjusting part is a porous member that is disposed in a gas inflow port from a supply source of the therapeutic gas. ### Claim 6 (depends on 1) The gas sensor kit according to claim 1, wherein the gas supply unit comprises a cannula. ### Claim 7 (depends on 1) The gas sensor kit according to claim 1, wherein the gas supply unit comprises a cap-shaped body that covers a casing of the gas sensor and supplies the therapeutic gas to the subject. ### Claim 8 (depends on 7) The gas sensor kit according to claim 7, wherein the cap-shaped body defines a room, and the flow rate adjusting part is located within the room. ### Claim 9 (depends on 1) The gas sensor kit according to claim 1, wherein the gas introduction part comprises a tube that introduces the exhalation gas of the subject to the gas sensor. ### Claim 10 A gas sensor kit comprising: a gas sensor; a gas introduction tube that introduces an exhalation gas of a subject to the gas sensor; and a gas supply tube that supplies a therapeutic gas to the subject; and a flow rate adjusting part that is configured to impede a flow of the therapeutic gas to the subject to thereby lower a flow rate of the therapeutic gas supplied to the subject, wherein the flow rate adjusting part is a porous member that is disposed in a gas inflow port from a supply source of the therapeutic gas. ### Claim 11 A gas sensor kit comprising: a gas sensor that measures a gas concentration of an exhalation gas of a subject; a gas introduction part that introduces the exhalation gas of the subject to the gas sensor; and a gas supply unit that supplies a therapeutic gas to the subject, wherein the gas supply unit includes a flow rate adjusting part that is configured to impede a flow of the therapeutic gas to the subject to thereby lower a flow rate of the therapeutic gas to the subject, and a cap-shaped body that covers a casing of the gas sensor and supplies the therapeutic gas to the subject, and wherein the cap-shaped body defines a room, and the flow rate adjusting part is located within the room. ### Claim 12 A device wearable on a face comprising: a gas introduction part that introduces an exhalation gas of a subject to a gas sensor that measures gas concentration of the exhalation gas of the subject; and a gas supply unit that is configured to be attachable to and detachable from the gas sensor or the gas introduction part, and supplies therapeutic gas to the subject, wherein the gas supply unit includes a flow rate adjusting part that is configured to impede a flow of the therapeutic gas to the subject to thereby lower a flow rate of the therapeutic gas to the subject, and a cap-shaped body that covers a casing of the gas sensor and supplies the therapeutic gas to the subject, and wherein the cap-shaped body defines a room, and the flow rate adjusting part is located within the room. ### Claim 13 A gas sensor kit that measures exhalation gas concentration of a subject while insufflating therapeutic gas to the subject, the gas sensor kit comprising: a flow rate adjusting part that is configured to impede a flow of the therapeutic gas to the subject to thereby lower a flow rate of the therapeutic gas flowing in a gas flow path from a supply source of the therapeutic gas to the subject, and a cap-shaped body that supplies the therapeutic gas to the subject, wherein the cap-shaped body defines a room, and the flow rate adjusting part is located within the room. ### Claim 14 A gas sensor kit comprising: a gas sensor; a gas introduction tube that introduces an exhalation gas of a subject to the gas sensor; a cap-shaped body that covers a casing of the gas sensor and supplies a therapeutic gas to the subject; and a flow rate adjusting part that is configured to impede a flow of the therapeutic gas to the subject to thereby lower a flow rate of the therapeutic gas supplied to the subject, wherein the cap-shaped body defines a room, and the flow rate adjusting part is located within the room.