(19)

(11)

EP 3 877 057 A1

(12)

(43) Date of publication: 15.09.2021 Bulletin 2021/37 (21) Application number: 19801016.7 (22) Date of filing: 08.11.2019

(51) International Patent Classification (IPC):  A62B 18/00(2006.01) (52) Cooperative Patent Classification (CPC): A62B 18/006; A62B 18/025 (86) International application number: PCT/EP2019/080709 (87) International publication number: WO 2020/094850 (14.05.2020 Gazette 2020/20)

(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: 09.11.2018 WO PCT/CN2018/114772 07.01.2019 EP 19150499 (71) Applicant: Koninklijke Philips N.V. 5656 AG Eindhoven (NL)	(72) Inventors: KONG, Tao 5656 AE Eindhoven (NL) CHEN, Weizhong 5656 AE Eindhoven (NL) SU, William 5656 AE Eindhoven (NL) (74) Representative: Philips Intellectual Property & Standards  High Tech Campus 5 5656 AE Eindhoven 5656 AE Eindhoven (NL)