RAPID EXCHANGE STENT DELIVERY SYSTEM

摘要

Stent delivery systems and methods for making and using stent delivery systems are disclosed. An example stent delivery system may include a guide member having a proximal portion and a distal portion. A stent may be disposed about the distal portion of the guide member. The stent may have a wall having an opening formed therein. A pusher member may be disposed about the guide member and positioned proximal of the stent. A holding filament may be disposed at the opening and may extend to the proximal portion of the guide member. The holding filament may be configured to releasably secure the position of the stent relative to the pusher member. The holding filament may be releasable from the stent independently of movement of the guide member.

主权项

1. A stent delivery system, comprising:
a guide member having a proximal portion and a distal portion; a stent disposed about the distal portion of the guide member, wherein the stent has a wall having an opening formed therein; a pusher member disposed about the guide member and positioned proximal of the stent; wherein the pusher member is designed to abut a proximal end of the stent; a holding filament disposed adjacent the opening and extending to the proximal portion of the guide member, wherein the holding filament includes a first filament portion, a second filament portion and a loop portion extending between the first filament portion and the second filament portion, wherein the loop portion of the holding filament is configured to releasably secure the position of the stent relative to the pusher member, and wherein the holding filament can be released from the stent independently of movement of the guide member; wherein the pusher member includes a longitudinal axis and defines a central lumen, wherein the central lumen has a tube wall having a proximal end and a distal end; wherein the pusher member has an exterior surface that includes a groove formed along at least a portion thereof; and wherein the first and second filament portions extend along the groove.