content_image/952915.jpg content_image/952914.jpg content_image/952942.jpg content_image/952941.jpg
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) 

<img src='content_image/952915.jpg'>

(19) World Intellectual Property 

International Bureau 

(43) International Publication Date 

15 October 2020 (15.10.2020) 

(51) International Patent Classification: A61M 1/00 (2006.01) G01F 1/32 (2006.01) 

(21) International Application Number: 

(22) International Filing Date: 

(25) Filing Language: 

(26) Publication Language: 

(30) Priority Data: 16/381,809 11 April 2019 ( 11.04.2019) U S 

(71) Applicant: COVIDIEN LP [US/US]; 15 Hampshire Street, Mansfield, Massachusetts 02048 (US). 

(72) Inventors: SKUJINS, Peter; 15 Hampshire Street, Mans‹ field, Massachusetts 02048 (US). MINTZ, Eric; 15 Hamp‹ shire Street, Mansfield, Massachusetts 02048 (US). JAL- GAONKAR, Ujwal; 15 Hampshire Street, Mansfield, Massachusetts 02048 (US). 

(74) Agent: STEINBRONN, Joseph R.; Shumaker & Sieffert P.A., 1625 Radio Drive, Suite 100, Woodbury, Minnesota 55 125 (US). 

(54) Title: ASPIRATION FLOW SENSOR 

<img src='content_image/952914.jpg'>

Organization 

PCT/US2020/024465 

24 March 2020 (24.03.2020) 

<img src='content_image/952942.jpg'>

W P O PCT 

English 

English 

<img src='content_image/952941.jpg'>

(81) Designated States (unless otherwise indicated, for every kind of national protection av ailable) . 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, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, WS, 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, Cl, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). 

(10) International Publication Number 

# WO 2020/210024 A 1 

(57) Abstract: In some examples, an aspiration system a catheter and a fluid flow sensor. The fluid flow sensor includes a fluid inlet, a fluid outlet, and a flow oscillator. The fluid inlet is configured to receive fluid from the catheter. The flow oscillator configured to oscillate flow of the fluid through the fluid flow sensor to generate flow-induced vibrations. The fluid outlet is configured to discharge the fluid. 

[Continued on next page] 

