(19)

(11)

EP 3 852 654 A1

(12)

(43) Date of publication: 28.07.2021 Bulletin 2021/30 (21) Application number: 19778617.1 (22) Date of filing: 23.09.2019

(51) International Patent Classification (IPC):  A61B 17/32(2006.01) (86) International application number: PCT/GB2019/052664 (87) International publication number: WO 2020/058731 (26.03.2020 Gazette 2020/13)

(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 (30) Priority: 21.09.2018 GB 201815383 07.11.2018 GB 201818170 (71) Applicant: Burcas Limited Birmingham B21 8LT (GB)	(72) Inventors: BURROWS, Mike Birmingham B21 8LT (GB) FEARN, Martyn Birmingham B21 8LT (GB) JOHNSON, John Birmingham B21 8LT (GB) (74) Representative: Swindell & Pearson Limited  48 Friar Gate Derby DE1 1GY Derby DE1 1GY (GB)