Patent SG-11201900525Q-A (SG)
Title: Sensing for respiratory circuits
Inventor: PETROCHENKO ANTON
IPC: A61M16/00
Filed: 2017-07-24
Abstract: 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 Imo oimIE (10) International Publication Number WO 2018/016977 Al 10 20 30 40 5 60 Time (ms) — Mains voltage — — — Patient end polarity (51) International Patent Classification: A61M 16/00 (2006.01) (21) International Application Number: PCT/NZ2017/050101 (22) International Filing Date: 24 July 2017 (24.07.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/365,664 22 July 2016 (22.07.2016) US (71) Applicant: FISHER & PAYKEL HEALTHCARE LIMITED [NZ/NZ]; 15 Maurice Paykel Place, East Tama- ki, 2013 Aucklandx (NZ). (72) Inventors; and (71) Applicants: LIU, Po-Yen [NZ/NZ]; 15 Maurice Paykel Place, East Tamaki, Auckland, 2013 (NZ). TONKIN, Paul James [NZ/NZ]; 15 Maurice Paykel Place, East Tamaki, Auckland, 2013 (NZ). JAVED, Salman Man- soor [NZ/NZ]; 15 Maurice Paykel Place, East Tamaki, Auckland, 2013 (NZ). YAN, Chenjie [CN/NZ]; 15 Mau- rice Paykel Place, East Tamaki, Auckland, 2013 (NZ). SEEKUP, Peter Alan [NZ/NZ]; 15 Maurice Paykel Place, East Tamaki, Auckland, 2013 (NZ). PETROCHENKO, Anton [RU/NZ]; 15 Maurice Paykel Place, East Tamaki, Auckland, 2013 (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, (54) Title: SENSING FOR RESPIRATORY CIRCUITS FIG. 6 Sensor Measurement Cycle Cycle 1: measure sensor 1 Cycle 2: measure sensor 2 Cycle 3: measure sensor 3 Measure ADC Measure ADC Measure ADC WWI IMM 11=MI • L MM. L Set up multiplexer Set up multiplexer 1-1 N N 01 SO (57) : Some embodiments provide a breathing assistance apparatus comprising a conduit for conveying gases therein, the 1-1 O GC 1-1 O to control provision of AC power or AC voltage to the heater wire part; and control selective reading of the sensor. The controller may be configured to read the sensor at or about a particular portion of the AC power waveform provided to the heater wire part. conduit comprising circuitry. The circuitry may comprise at least one heater wire part to heat gases in the conduit, in use, and at least one sensor wire part comprising at least one sensor for monitoring a parameter of the gases in the conduit. There is also provided a controller C [Continued on next page] WO 2018/016977 Al MIDEDIMOMOIDEIREEMOOMMOHINEOBEEMIS 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))