# US 10,369,318 B2 · Unobtrusive nasal mask > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,318 B2 - Document ID: US10369318B2 - Status: Granted - Kind: B2 - Application number: 15/299,153 - Filed: 2016-10-20 - Published: 2017-03-23 - Granted: 2019-08-06 - Earliest claimed: 2010-10-08 - Assignees: ResMed Pty Ltd - Applicants: ResMed Limited - Inventors: Adam Francis Barlow; Kai Stuebiger; Muditha Pradeep Dantanarayana; Aaron Samuel Davidson; Phoebe Katherine Hill; Jessica Lea Dunn; Anthony Paul Barbara; Jose Ignacio Romagnoli; Lochlan Von Moger; Kirrily Michele Haskard; Justin John Formica; Rupert Christian Scheiner - Web page: https://patentgrep.com/patent/US10369318B2 ## CPC - A61M 16/0683: {Holding devices therefor} - A61M 16/0057: {Pumps therefor} - A61M 16/0605: {Means for improving the adaptation of the mask to the patient} - A61M 16/0816: {Joints or connectors} - A61M 2205/582: by tactile feedback - A61M 2205/583: by visual feedback - A61M 2210/0618: Nose - 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 patient interface for delivering breathable gas to a patient includes a mask having a sealing portion adapted to form a seal with the patient headgear adapted to secure the mask to a head of the patient and an adjustable strap assembly including a pair of straps connected to one another in a length adjustable manner. ## Claims ### Claim 1 A patient interface for delivering breathable gas to a patient, the patient interface comprising: a mask having a sealing portion adapted to form a seal with the patient, the mask having headgear connectors; headgear adapted to secure the mask to a head of the patient, the headgear having a first strap portion and a second strap portion, the first strap portion adapted to connect to the mask, the second strap portion adapted to connect to and be separable from the first strap portion; a first alignment indicator disposed on the mask; a second alignment indicator disposed on the first strap portion; and a third alignment indicator disposed on the second strap portion, wherein the first and second alignment indicators are positioned to align with each other when the first strap portion is connected to the mask with a correct alignment, and the second and third alignment indicators are positioned to align with each other when the first strap portion is connected to the second strap portion with a correct alignment. ### Claim 2 (depends on 1) A patient interface according to claim 1, wherein the first alignment indicator, the second alignment indicator and the third alignment indicator are in the form of lines. ### Claim 3 (depends on 1) A patient interface according to claim 1, wherein the first alignment indicator, the second alignment indicator and the third alignment indicator have a common texture and/or color. ### Claim 4 (depends on 3) A patient interface according to claim 3, wherein the common texture or color contrasts with a texture or color of the mask, the first strap portion and/or the second strap portion. ### Claim 5 (depends on 1) A patient interface according to claim 1, wherein the second alignment indicator extends on the first strap portion between where the first strap portion connects to the mask and where the first strap portion connects to the second strap portion. ### Claim 6 (depends on 1) A patient interface according to claim 1, wherein the second strap portion connects at opposite ends to two different portions of the first strap portion. ### Claim 7 (depends on 6) A patient interface according to claim 6, wherein the third alignment indicator extends between the opposite ends of the second strap portion. ### Claim 8 (depends on 1) A patient interface according to claim 1, wherein the second strap portion is a back of head strap portion adapted to wrap around a back of the patient's head in use. ### Claim 9 (depends on 1) A patient interface according to claim 1, wherein the headgear includes a pair of headgear connectors disposed on opposite sides of the mask, the first strap portion having a first end connected to a first one of the headgear connectors and a second end connected to a second one of the headgear connectors, wherein the first alignment indicator is disposed on both sides of the mask. ### Claim 10 (depends on 1) A patient interface according to claim 1, wherein the headgear includes a pair of headgear connectors disposed on opposite sides of the mask, the first strap portion having a first end connected to a first one of the headgear connectors and a second end connected to a second one of the headgear connectors, wherein the first alignment indicator is disposed on only one of the sides of the mask. ### Claim 11 (depends on 1) A patient interface according to claim 1, further comprising an orientation indicator provided on the mask. ### Claim 12 (depends on 11) A patient interface according to claim 11, wherein the orientation indicator is a shape of the sealing portion. ### Claim 13 (depends on 1) A patient interface according to claim 1, further comprising an orientation indicator provided on the headgear. ### Claim 14 (depends on 13) A patient interface according to claim 13, wherein the orientation indicator is printing provided on the headgear. ### Claim 15 (depends on 13) A patient interface according to claim 13, wherein the orientation indicator is an embossed orientation indicator. ### Claim 16 (depends on 13) A patient interface according to claim 13, wherein the orientation indicator is a line on the headgear. ### Claim 17 (depends on 16) A patient interface according to claim 16, wherein the orientation indicator is provided on a side of the headgear to indicate a front side or a back side. ### Claim 18 (depends on 13) A patient interface according to claim 13, wherein the orientation indicator is a tactile orientation indicator. ### Claim 19 (depends on 18) A patient interface according to claim 18, wherein the tactile orientation indicator is a plurality of raised or indented elements that provide tactile feedback to the patient. ### Claim 20 (depends on 1) A patient interface according to claim 1, wherein the first and second alignment indicators are positioned to be misaligned with each other when the first strap portion is connected to the mask with an incorrect alignment. ### Claim 21 (depends on 1) A patient interface according to claim 1, wherein the second and third alignment indicators are positioned to be misaligned with each other when the first strap portion is connected to the second strap portion with an incorrect alignment. ### Claim 22 (depends on 1) A patient interface according to claim 1, wherein the first and second alignment indicators are configured to be adjacent to each other only when the mask is positioned in a particular orientation relative to the first strap portion.