# US 2016/0354590 A1 · Micro needle stamp > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0354590 A1 - Document ID: US20160354590A1 - Status: Published application - Kind: A1 - Application number: 15/108,926 - Filed: 2014-12-23 - Published: 2016-12-08 - Earliest claimed: 2013-12-31 - Assignees: Laon Co., Ltd. - Applicants: Laon Co., Ltd. - Inventors: Doo Won LEE - Web page: https://patentgrep.com/patent/US20160354590A1 ## CPC - A61M 37/0015: {by using microneedles} - A61M 5/158: Needles {for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body} - A61M 2005/1585: {Needle inserters} - A61M 2037/0023: {Drug applicators using microneedles} - A61M 2037/0061: {Methods for using microneedles} - 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 micro needle stamp comprises: a micro needle unit having a plurality of micro needles implanted therein; a main cover receiving and slidably supporting the micro needle unit; an auxiliary cover in which a plurality of openings are formed to correspond to the plurality of micro needles, and which is slidably coupled to the outer surface of the main cover while restricting the main cover from moving backward with respect thereto; a first resilient body interposed between the micro needle unit and the main cover; and a second resilient body interposed between the main cover and the auxiliary cover. ## Claims ### Claim 1 A micro needle stamp, comprising: a micro needle unit in which a plurality of micro needles are planted; a main cover in which the micro needle unit is received and which supports to be slidable the micro needle unit; an auxiliary cover on which a plurality of openings are formed to correspond to the plurality of the micro needles, which restricts the main cover from relatively moving in the backward direction and couples with an outer surface of the main cover in a slidable manner; a first resilient body that is interposed between the micro needle unit and the main cover; and a second resilient body that is interposed between the main cover and the auxiliary cover. ### Claim 2 (depends on 1) The micro needle stamp according to claim 1, the micro needle unit includes: the plurality of the micro needles; a needle support body in which the plurality of the micro needles are panted to be exposed in the forward direction; a press block that detachably couples to a backward surface of the needle support body; and a press portion that connected to a backward surface of the press block. ### Claim 3 (depends on 2) The micro needle stamp according to claim 2, the needle support body includes a body in which the plurality micro needles are planted; one projection or a plurality of projections projected from a outer surface of the body, and wherein the press block includes a block that is in contact with a bottom surface of the body; and a coupling portion which extends from the block to receive the bottom portion of the body and has a projection groove penetrated corresponding to the projection. ### Claim 4 (depends on 2) The micro needle stamp according to claim 2, the main cover includes: a receiving portion that has a receiving space receiving the needle support body and the press block; a support portion that slidably supports the press portion; a connection portion that integrally connects the receiving portion with the support portion; a extension portion that integrally extends from the connection portion to be apart from a outer surface of the receiving portion, and an expansion portion that expands from the support portion to have a separation space between the press portion and the support portion. ### Claim 5 (depends on 4) The micro needle stamp according to claim 4, the first resilient body is interposed between the press portion and the expansion portion. ### Claim 6 (depends on 4) The micro needle stamp according to claim 4, the auxiliary cover includes: a front surface portion that is spaced in front of the needle support body and has a plurality of openings corresponding to the plurality of the micro needles; a first sliding portion that extends from the front surface portion and is slidably in face-contact with an outer surface of the receiving portion; a second sliding portion that integrally extends to be expanded from the first sliding portion and is spaced from the outer surface of the receiving portion to the outside and is slidably in face-contact with an inner surface of the extension portion; and restricting means that restricts the extension portion from moving in the backward direction. ### Claim 7 (depends on 6) The micro needle stamp according to claim 6, wherein the restricting means is one projection portion or a plurality of projection portions that extend from the second sliding portion to the backward side and has a retaining projection at the end thereof, and a retaining groove corresponding to the retaining projection is penetrated through the extension portion. ### Claim 8 (depends on 6) The micro needle stamp according to claim 6, wherein the second resilient body is interposed between the extension portion and the second sliding portion.