Stent delivery system
First Claim
1. A stent delivery system comprising:
- an elongated inner member extending between a distal tip and a proximal end;
a stent support member disposed over the inner member and defining a stent receiving region, the inner member slidable within the stent support member;
at least one stent surrounding the stent receiving region of the stent support member, the stent having a collapsed configuration and an expanded configuration;
an elongated outer sheath slidably disposed over the inner member, the outer sheath extending between a distal end and a proximal end, the outer sheath including a proximal portion and a distal portion located distal of the proximal portion, the distal portion of the outer sheath surrounding the stent to restrain the stent in the collapsed configuration;
a proximal junction detachably coupling the distal portion of the outer sheath to the proximal portion of the outer sheath, the proximal junction being actuatable to selectively uncouple the distal portion of the outer sheath from the proximal portion of the outer sheath;
a distal junction detachably coupling the distal end of the outer sheath to the distal tip of the inner member, the distal junction being actuatable to selectively uncouple the outer sheath from the distal tip;
wherein the distal and proximal junctions are separately actuatable by rotating the inner member relative to the proximal portion of the outer sheath with the proximal portion of the outer sheath held stationary; and
a handle assembly at the proximal end of the inner member, wherein the handle assembly includes a position marker and first and second spaced apart rotational markers indicating a rotational orientation of the inner member;
wherein the proximal junction is uncoupled when the position marker is aligned with the first rotational marker, and wherein the distal junction is uncoupled when the position marker is aligned with the second rotational marker.
1 Assignment
0 Petitions
Accused Products
Abstract
Stent delivery device including an inner member having a distal tip, a stent support member, and a stent disposed over a stent receiving region of the stent support member. An elongated outer sheath is slidably disposed over the inner member and the stent. The stent delivery device includes a distal junction removably coupling the distal end of the outer sheath to the distal tip, where the distal junction is actuatable to decouple the outer sheath from the distal tip. The stent delivery device includes a proximal junction removably coupling a distal portion of the outer sheath to a proximal portion of the outer sheath, where the proximal junction is actuatable to decouple the distal portion of the outer sheath from the proximal portion of the outer sheath. The distal and proximal junctions may be separately actuatable by rotating the inner member relative to the proximal portion of the outer sheath.
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Citations
16 Claims
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1. A stent delivery system comprising:
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an elongated inner member extending between a distal tip and a proximal end; a stent support member disposed over the inner member and defining a stent receiving region, the inner member slidable within the stent support member; at least one stent surrounding the stent receiving region of the stent support member, the stent having a collapsed configuration and an expanded configuration; an elongated outer sheath slidably disposed over the inner member, the outer sheath extending between a distal end and a proximal end, the outer sheath including a proximal portion and a distal portion located distal of the proximal portion, the distal portion of the outer sheath surrounding the stent to restrain the stent in the collapsed configuration; a proximal junction detachably coupling the distal portion of the outer sheath to the proximal portion of the outer sheath, the proximal junction being actuatable to selectively uncouple the distal portion of the outer sheath from the proximal portion of the outer sheath; a distal junction detachably coupling the distal end of the outer sheath to the distal tip of the inner member, the distal junction being actuatable to selectively uncouple the outer sheath from the distal tip; wherein the distal and proximal junctions are separately actuatable by rotating the inner member relative to the proximal portion of the outer sheath with the proximal portion of the outer sheath held stationary; and a handle assembly at the proximal end of the inner member, wherein the handle assembly includes a position marker and first and second spaced apart rotational markers indicating a rotational orientation of the inner member; wherein the proximal junction is uncoupled when the position marker is aligned with the first rotational marker, and wherein the distal junction is uncoupled when the position marker is aligned with the second rotational marker. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A stent delivery system comprising:
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an elongated inner member extending between a distal tip and a proximal end; a stent support member disposed over the inner member and defining a stent receiving region, the inner member slidable within the stent support member; at least one stent surrounding the stent receiving region of the stent support member, the stent having a collapsed configuration and an expanded configuration; an elongated outer sheath slidably disposed over the inner member, the outer sheath extending between a distal end and a proximal end, the outer sheath including a proximal portion and a distal portion located distal of the proximal portion, the distal portion of the outer sheath surrounding the stent to restrain the stent in the collapsed configuration; a proximal junction detachably coupling the distal portion of the outer sheath to the proximal portion of the outer sheath, the proximal junction being actuatable to selectively uncouple the distal portion of the outer sheath from the proximal portion of the outer sheath; and a distal junction detachably coupling the distal end of the outer sheath to the distal tip of the inner member, the distal junction being actuatable to selectively uncouple the outer sheath from the distal tip; wherein the distal and proximal junctions are separately actuatable by rotating the inner member relative to the proximal portion of the outer sheath with the proximal portion of the outer sheath held stationary; wherein the distal portion of the outer sheath includes at least one axially collapsible section configured to shorten in axial length when the proximal junction or the distal junction is uncoupled; wherein the at least one axially collapsible section includes a proximal axially collapsible section and a distal axially collapsible section; and wherein the distal portion includes a middle section positioned between the proximal and distal axially collapsible sections, the middle section configured to maintain a constant length when the proximal junction or the distal junction is uncoupled.
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13. A stent delivery system comprising:
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an elongated inner member having a proximal end and a distal end, the inner member including a distal tip at the distal end; a stent support member disposed over the inner member and having a stent receiving region proximal of the distal tip of the inner member, the inner member being slidably disposed within the stent support member; at least one self-expanding stent disposed over the stent receiving region of the stent support member, the stent having a collapsed configuration and an expanded configuration; an elongated outer sheath slidably disposed over the inner member, the outer sheath extending between a distal end and a proximal end, the outer sheath including a proximal portion and a distal portion located distal of the proximal portion, the distal portion of the outer sheath extending to the distal end of the outer sheath and surrounding the stent to restrain the stent in the collapsed configuration; a proximal junction detachably coupling a proximal end of the distal portion of the outer sheath to a distal end of the proximal portion of the outer sheath, the proximal junction being actuatable to selectively uncouple the distal portion of the outer sheath from the proximal portion of the outer sheath by rotating the inner member relative to the proximal portion of the outer sheath in a first rotational direction with the proximal portion of the outer sheath held stationary; and a distal junction detachably coupling the distal end of the outer sheath to the distal tip of the inner member, the distal junction being actuatable to selectively uncouple the outer sheath from the distal tip by rotating the inner member relative to the proximal portion of the outer sheath in a second rotational direction with the proximal portion of the outer sheath held stationary; wherein the first direction is opposite the second direction; wherein the distal portion of the outer sheath includes at least one axially collapsible section configured to shorten in axial length when the proximal junction or the distal junction is uncoupled; wherein the at least one axially collapsible section includes a proximal axially collapsible section and a distal axially collapsible section; and wherein the distal portion includes a middle section positioned between the proximal and distal axially collapsible sections, the middle section configured to maintain a constant length when the proximal junction or the distal junction is uncoupled. - View Dependent Claims (14, 15, 16)
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Specification