SG11201900903SA - Intravenous catheter apparatus with safety function and pressure controlled valve element - Google Patents

Abstract

O N O GC O N O (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 February 2018 (08.02.2018) WIP0 I PCT omit VIII °nolo 01101 OH loolimo Immo oimIE (10) International Publication Number WO 2018/025094 Al (51) International Patent Classification: A61M 25/00 (2006.01) A61M 5/32 (2006.01) A61M 25/06 (2006.01) A61M 39/06 (2006.01) (21) International Application Number: PCT/IB2017/050499 (22) International Filing Date: 31 January 2017 (31.01.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 201611026278 01 August 2016 (01.08.2016) IN (71) Applicant: POLY MEDICURE LIMITED [IN/IN]; Plot No. 105, Sector 59, HSIIDC Industrial Area, Faridabad, Haryana, Faridabad, Haryana 12004 (IN). (72) Inventor: BAID, Rishi; W-169, Greater Kailash — II, New Delhi 110048 (IN). (74) Agent: PRATAP, Prabhakar Mani et al.; VUTTS & ASSOCIATES LLP, Advocates, No. 704, Plot 36A, Sector 56, Gurgaon, Haryana 122009 (IN). (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, 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. (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). Declarations under Rule 4.17: as to the identity of the inventor (Rule 4.17(i)) as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) of inventorship (Rule 4.17(iv)) Published: with international search report (Art. 21(3)) (54) Title: INTRAVENOUS CATHETER APPARATUS WITH SAFETY FUNCTION AND PRESSURE CONTROLLED VALVE ELEMENT (57) : The invention relates to an intravenous catheter apparatus comprising: a catheter hub (12) arranged at a proximal end of a catheter tube (10), the catheter hub (12) having an inner surface (14) defining a chamber (16); a needle (20) defining an axial direction and having a needle tip (24), the needle (20) extending through the chamber (16) and the catheter tube (10) when in a ready position; a needle guard (32) slidably arranged on the needle (20) and at least partially received in the chamber (16) when the needle (20) is in the ready position, the needle guard (32) including a base portion (34) and first and second arms (36, 38) extending from the base portion (34), wherein the first arm (36) is deflected radially outwards by the needle (20) against a restoring force when the needle (20) is in the ready position whereby the needle guard (32) is brought into retaining contact with the catheter hub (12); and wherein the catheter apparatus includes a valve which separates a distal space arranged in distal direction from the valve from a proximal space arranged on proximal direction from the valve. The invention further provides that the valve opens based on a pressure differential between the pressure prevailing in the distal space and the pressure prevailing in the proximal space.