Patent CA-3091582-A1 (CA)
Title: Automatic xy centering for digital microscope
Inventor: CHARLES STEVEN T
IPC: A61B3/15
Filed: 2019-04-04
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY  (PCT) (19) World Intellectual Property Organization            1 11111 1111111 11 111111 111 11111 11111111 1 1 111 International Bureau                                (10) International Publication Number (43) International Publication Date                   WO 2019/197951 A3 17 October 2019 (17.10.2019)      WIPO I PCT (51) International Patent Classification:       MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, A 61B 3/13 (2006.01)     A61B 3/15 (2006.01)    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, (21) International Application Number: TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.   (84) Designated States (unless otherwise indicated, for every (22) International Filing Date: kind of regional protection available): ARIPO (BW, GH, 04 April 2019 (04.04.2019) GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (25) Filing Language:                     English    UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, (26) Publication Language:                English EE, ES, FI, FR, GB, GR, HR, HU, EE, IS, IT, LT, LU, LV, (30) Priority Data:                             MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, 62/656,0'79        11 April 2018 (11.04.2018)    US    TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (71) Applicant: ALCON INC. [CH/CH]; Rue Louis-d Affry 6, 1'701 Fribourg (CH). Declarations under Rule 4.17: (72) Inventor: CHARLES, Steven T.; c/o Charles Retina Insti- ¨ as to applicant's entitlement to apply for and be granted a tute , 1432 Kimbrough Rd. , Germantown, Tennessee 38138    patent (Rule 4.  17(ii)) (US).                                                                               ¨ as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AIVI, Published: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, ¨ with international search report (Art. 21(3)) CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, ¨ before the expiration of the time limit for amending the DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN,    claims and to be republished in the event of receipt of HR, HU, ID, IL, IN, 1R, IS, JO, JP, KE, KG, KH, KN, KP,    amendments (Rule 48.2(h)) KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, = (54) Title: AUTOMATIC XY CENTERING FOR DIGITAL MICROSCOPE (57) Abstract: A method and system are described for automatical--ly centering in an XY plane a field of view of a patient's eye under high magnification during ophthalmic surgery. The method includes DISPLAY Cily 312          automatically moving the center of the field of view to the center of a 311-, circular image detected in a real-time video signal acquired from the field of view of the patient's eye under high magnification during oph-thalmic surgery. The system configured to perform the method has a 308 y-314                          310 _______________  309  _____  313  ______  processor and a non-transitory computer-readable medium accessible 306-µ,                       2    NON-TRANSITORY    to the processor containing instructions executable by the processor to CAMERA  ____________  PROC SSOR   __ COMPUTER READABLE MEDIUM                           perform the method. 307-, MOTORIZED MICROSCOPE  ________  MICROSCOPE 303-z-               HEAD SUPPORT    315 316  _____________________ k-304 3y.x FIG. 3 [Continued on next page]     (88) Date of publication of the international search report: 21 November 2019 (21.11.2019)