# US 2020/0390983 A1 · Needle array device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0390983 A1 - Document ID: US20200390983A1 - Status: Published application - Kind: A1 - Application number: 17/001,553 - Filed: 2020-08-24 - Published: 2020-12-17 - Earliest claimed: 2017-01-26 - Assignees: Allergan Industrie, SAS - Applicants: Allergan Industrie, SAS - Inventors: Bastien MANDAROUX - Web page: https://patentgrep.com/patent/US20200390983A1 ## CPC - A61M 5/3295: {Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel} - A61M 5/31545: {Setting modes for dosing} - A61M 5/3293: {characterised by features of the needle hub} - A61M 5/42: having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced - A61M 5/46: having means for controlling depth of insertion - A61M 39/105: {Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes (multi-channel connectors in general F16L37/56)} - A61M 5/3202: {Devices for protection of the needle before use, e.g. caps (A61M5/50 takes precedence; protectors for sharps A61B50/3001)} - A61M 2005/31588: {electrically driven} - A61M 2205/3327: Measuring - A61M 2205/3344: Measuring or controlling pressure at the body treatment site - A61M 2210/0606: Face - 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 Methods of actuating a needle array device can include causing fluid to move through flow channels to needle apertures that are spaced apart from an inflow aperture at different distances where flow channels that have approximately equal pathway lengths and where the fluid can reach tips of the needle apertures approximately simultaneously, which can provide an approximately equal dosage or fluid volume through the tips of the needle apertures. ## Claims ### Claim 1 A method of actuating a needle array device comprising causing a fluid to pass from an inflow aperture to needle apertures that are spaced apart from the inflow aperture at different distances, the fluid passing through a plurality of flow channels that have approximately equal pathway lengths thereby permitting the fluid to reach tips of the needle apertures approximately simultaneously. ### Claim 2 (depends on 1) The method of claim 1, wherein each of the needle apertures is in fluid communication with a respective needle such that the fluid reaches a tip of each needle approximately simultaneously. ### Claim 3 (depends on 2) The method of claim 2, further comprising coupling a first sleeve to the needle array such that the tip of each needle is spaced apart from an outer surface of the sleeve by a first length. ### Claim 4 (depends on 3) The method of claim 3, further comprising coupling a second sleeve to the needle array such that the tip of each needle is spaced apart from an outer surface of the sleeve by a second length, wherein the second length is different than the first length. ### Claim 5 (depends on 1) The method of claim 1, further comprising coupling a needle base of the needle array device to a support base of the needle array device to define the plurality of flow channels between the needle base and the support base. ### Claim 6 (depends on 5) The method of claim 5, wherein coupling a needle base to a support base comprising engaging a locating pin of any of the needle base or the support base against an aperture of the other of the needle base or the support base. ### Claim 7 (depends on 1) The method of claim 1, further comprising coupling a syringe device to the needle array device such that the syringe device is in fluid communication with the inflow aperture. ### Claim 8 (depends on 7) The method of claim 7, further comprising injecting a fluid from the syringe device to the inflow aperture. ### Claim 9 (depends on 7) The method of claim 7, further comprising withdrawing a fluid from the inflow aperture to the syringe device. ### Claim 10 (depends on 1) The method of claim 1, further comprising causing the fluid to pass through a fluid reservoir of a fluid manifold between the inflow aperture and the plurality of flow channels. ### Claim 11 A method of actuating a needle array device comprising injecting a fluid into a fluid manifold that diverts the fluid into a plurality of flow channels that have approximately equal lengths and terminal ends positioned at different distances from an inflow aperture fluidly coupled to the fluid manifold. ### Claim 12 (depends on 11) The method of claim 11, wherein each of the terminal ends is in fluid communication with a respective needle such that the fluid reaches a tip of each needle approximately simultaneously. ### Claim 13 (depends on 12) The method of claim 12, further comprising coupling a first sleeve to the needle array such that the tip of each needle is spaced apart from an outer surface of the sleeve by a first length. ### Claim 14 (depends on 13) The method of claim 13, further comprising coupling a second sleeve to the needle array such that the tip of each needle is spaced apart from an outer surface of the sleeve by a second length, wherein the second length is different than the first length. ### Claim 15 (depends on 11) The method of claim 11, further comprising coupling a needle base of the needle array device to a support base of the needle array device to define the plurality of flow channels between the needle base and the support base. ### Claim 16 (depends on 15) The method of claim 15, wherein coupling a needle base to a support base comprising engaging a locating pin of any of the needle base or the support base against an aperture of the other of the needle base or the support base ### Claim 17 (depends on 11) The method of claim 11, further comprising coupling a syringe device to the needle array device such that the syringe device is in fluid communication with the inflow aperture. ### Claim 18 (depends on 17) The method of claim 17, further comprising injecting a fluid from the syringe device to the inflow aperture. ### Claim 19 (depends on 17) The method of claim 17, further comprising withdrawing a fluid from the inflow aperture to the syringe device. ### Claim 20 (depends on 11) The method of claim 11, further comprising causing the fluid to pass through a fluid reservoir of the fluid manifold between the inflow aperture and the plurality of flow channels.