Medical device delivery system having a sheath with a flared strain relief member operatively coupled by a unidirectional handle

A medical device delivery system for deploying an implantable prosthesis at a selected location inside a patient's body, the delivery system comprising:

• an elongate outer sheath having a proximal end portion having a flared outer diameter and a distal end portion defining an outer sheath passageway therebetween, the proximal end portion comprising a first melt bonding material and being flared to an angle θ with respect to a longitudinal axis of the outer sheath;
• a flared strain relief member having a first end portion with a first outer diameter and a second end portion with a larger second outer diameter, the first end portion comprising a second melt bonding material and being disposed about and operatively coupled to only the proximal end portion of the outer sheath via a melt bond joining the first and second melt bonding materials, and the second end portion having an inner engaging surface disposed concentrically about the proximal end portion of the outer sheath and being flared to the angle θ the second end portion further comprising an opening in fluid communication with the outer sheath passageway;
• a handle comprising a first connector having a first connector lumen and a second connector having a second connector lumen, the second end portion of the flared strain relief member being operatively coupled between the first connector and the second connector, and the second connector lumen being in fluid communication with the outer sheath passageway.