Patent SG-11201908058U-A (SG)
Title: Needle insertion by overpressure
Inventor: MCCULLOUGH ADAM
IPC: A61M5/158
Filed: 2018-02-20
Abstract: 152 112 162 7 --130 (116 133 132 X 110 160 ,--158 140 FIG. 2 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 13 September 2018 (13.09.2018) WIP0 I PCT onion °nolo Oil 100TH 0010111 io 1111101 ow (10) International Publication Number WO 2018/164829 Al (51) International Patent Classification: A61M 5/14 (2006.01) A61115/142 (2006.01) A61M 5/158 (2006.01) (21) International Application Number: PCT/US2018/018687 (22) International Filing Date: 20 February 2018 (20.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/468,190 07 March 2017 (07.03.2017) US (71) Applicant: AMGEN INC. [US/US]; One Amgen Center Drive, Thousand Oaks, CA 91320-1799 (US). (72) Inventor: MCCULLOUGH, Adam, B.; 2792 Great Smokey Court, Westlake Village, CA 91362 (US). (74) Agent: FURMANEK, Michael, P.; Marshall, Gerstein & Boron LLP, 233 S. Wacker Drive, 6300 Willis Tower, Chicago, IL 60606-6357 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (54) Title: NEEDLE INSERTION BY OVERPRESSURE n 7 -126 co 00 O C (57) : An insertion mechanism for a drug delivery device. The insertion mechanism includes a proximal end, a distal end, a first opening disposed near the proximal end, and a second opening disposed in the distal end. A needle or cannula assembly is disposed within the housing and has a base with a proximal surface and a distal surface and a needle or cannula coupled to the distal surface. A retraction member is disposed within the housing to maintain the needle or cannula assembly in the retracted position before movement to the extended position, the retraction member in contact with the base. Upon supplying pressure through the first opening until an amount of pressure P1 applies an application force to the proximal surface of the base that surpasses a resistive force of the retraction member, the needle assembly is moved from the retracted position to the extended position. [Continued on next page] WO 2018/164829 Al MIDEDIMOMOIDEIREEMOMOHINHEINCHIMMIS (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))