A flared strain relief member for medical device delivery systems for stents, prosthetic valve devices, and other implantable articles inside a patient's body are provided. An elongate outer sheath has proximal and distal end portions defining a passageway, and the proximal end portion having an outer...http://www.google.co.uk/patents/US8221390?utm_source=gb-gplus-sharePatent US8221390 - Medical device delivery system having a sheath with a flared strain relief member operatively coupled by a unidirectional handle