Veryan Medical Limited

Technip France S.a.s.

Nicholas V Watkins

Colin Gerald Caro

Philip L Birch

Brian G Falzon

Spencer J Sherwin

A graft includes a flow tubing having a tubing portion defining a flow lumen. The flow lumen of the tubing portion is substantially free of ribs or grooves. A center line of the flow lumen follows a substantially helical path with a helix angle less than or equal to 65&#xb0;. The amplitude of the helix is less than or equal to one half of the internal diameter of the tubing portion.

Helical graft

An expandable balloon for insertion in a fluid conduit of a human or animal body is movable between a collapsed condition and an expanded condition. The balloon has, when in the expanded condition, a center line which follows a substantially helical path. The balloon can be combined with a stent such that the stent is expandable by the balloon from a collapsed condition to an expanded condition.

Helical stent

A stent for insertion in a fluid conduit of a human or animal body when the stent is in a collapsed condition and for expansion to an expanded condition, includes an outer wall for engagement with the conduit. The outer wall has a helical portion which in the expanded condition extends longitudinally and circumferentially, and which, upon expansion of the stent from the collapsed condition to the expanded condition, resists extension.

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London, United Kingdom

Nicholas V Watkins