Patent SG-11201900520Y-A (SG)
Title: Water out alarm determination
Inventor: LIU PO-YEN
IPC: G05D9/00
Filed: 2017-07-19
Abstract: DETE.,:. = FLOW ( -1364 YES I C.'111E, WATER OUT DETECTOR _z100i WATER OUT i3SAI3L/33 9311 YES WATER 1008 1, 171VE WATER WTI CETEZTR244 SECOK13 CPERAMONAL STATE so 3 W O 20 18/0 1697 4 Al /- PROM WATER OLT GETECITTR FIG. la 1305^ (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 25 January 2018 (25.01.2018) WIP0 I PCT 0111111010 0111 °nolo III m VIII 110 Hullo oimIE (10) International Publication Number WO 2018/016974 Al (51) International Patent Classification: A61M 16/16 (2006.01) G05D 9/00 (2006.01) GO1F 23/00 (2006.01) (21) International Application Number: PCT/NZ2017/050096 (22) International Filing Date: 19 July 2017 (19.07.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/364,250 19 July 2016 (19.07.2016) US (71) Applicant: FISHER AND PAYKEL HEALTHCARE LIMITED [NZ/NZ]; 15 Maurice Paykel Place, East Tama- ki, 2013 Auckland (NZ). (72) Inventors; and (71) Applicants: LIU, Po-Yen [NZ/NZ]; 15 Maurice Paykel Place, East Tamaki, 2013 Auckland (NZ). TENG, Ivan Chih-Fan [NZ/NZ]; 15 Maurice Paykel Place, East Tama- ki, 2013 Auckland (NZ). VAN WORKUM, Stefan Leo [NL/NZ]; 15 Maurice Paykel Place, East Tamaki, 2013 Auckland (NZ). STEINER, Oliver Samuel [GB/NZ]; 15 Maurice Paykel Place, East Tamaki, 2013 Auckland (NZ). (74) Agent: BALDWINS INTELLECTUAL PROPERTY; PO Box 5999, Wellesley Street, 1141 Auckland (NZ). (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. (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)) (54) Title: WATER OUT ALARM DETERMINATION (57) : The present disclosure provides for an improved method of determining a water out condition in a humidified gases supply apparatus. The method includes a two-step process including a primary determination of a water out condition and a secondary deter- mination of a water out condition. This primary determination is made during observation of the normal operation of the apparatus. During the secondary determination the method takes temporary control over the humidifying part of the apparatus. The secondary determination confirms or contradicts the primary determination.