(19)

(11)

EP 3 993 877 A1

(12)

(43) Date of publication: 11.05.2022 Bulletin 2022/19 (21) Application number: 20735419.2 (22) Date of filing: 03.07.2020

(51) International Patent Classification (IPC):  A62B 9/00(2006.01) A62B 18/08(2006.01) (52) Cooperative Patent Classification (CPC): A62B 18/08; A62B 23/025 (86) International application number: PCT/EP2020/068881 (87) International publication number: WO 2021/004963 (14.01.2021 Gazette 2021/02)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 05.07.2019 WO PCT/CN2019/094920 13.09.2019 EP 19197165 (71) Applicant: Koninklijke Philips N.V. 5656 AG Eindhoven (NL)	(72) Inventors: KELLY, Declan, Patrick 5656 AE Eindhoven (NL) SU, Wei 5656 AE Eindhoven (NL) (74) Representative: Philips Intellectual Property & Standards  High Tech Campus 52 5656 AG Eindhoven 5656 AG Eindhoven (NL)