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(11)

EP 2 254 531 A1

(12)

(43) Date of publication: 01.12.2010 Bulletin 2010/48 (21) Application number: 09704017.4 (22) Date of filing: 21.01.2009

(51) International Patent Classification (IPC):  A61F 4/00(2006.01) A61F 2/72(2006.01) H02M 7/00(2006.01) (86) International application number: PCT/GB2009/050040 (87) International publication number: WO 2009/093063 (30.07.2009 Gazette 2009/31)

(84) Designated Contracting States: 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 SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 21.01.2008 GB 0800955 (71) Applicant: Salisbury Nhs Foundation Trust Salisbury, Wiltshire SP2 8BJ (GB)	(72) Inventors: LANE, Rodney, Paul Salisbury, Wiltshire SP2 7LX (GB) NOLAN, Dominic East Sussex TN6 3LA (GB) (74) Representative: Bonner, Catherine Louise  Chapman Molony 20 Staple Gardens GB-Winchester SO23 8SR GB-Winchester SO23 8SR (GB)