Patent ID: 8758420
Filing Date: 2014-06-24
Classification: A61F,A61M,Y10T

Abstract:
1. A catheter device having a shaft that extends from a proximal end to a distal end to carry on its distal end a self-expanding metal implant for intraluminal advance on a guidewire and delivery of the implant to an implant site by proximal withdrawal of a sheath that lies radially outside the implant in the catheter, the catheter including a first shaft element to pull the sheath proximally and a second shaft element to push the implant distally to prevent the implant moving proximally with the sheath when the sheath is pulled proximally, wherein the second shaft element carries a stopper with a distal annulus for abutting the proximal end of the implant, the stopper comprising proximal and distal portions having different radiopacities, the distal portion comprising PEEK and defining the distal annulus and having a radiopacity lower than that of the proximal portion, for contrast with the radiopacity of the metal implant.