Implantable stent delivery devices and methods
First Claim
1. A stent delivery device for delivering a plurality of stents or stent segments to a treatment site in a body lumen, the device comprising:
- a catheter shaft having a proximal end and a distal end;
an expandable member coupled with the catheter shaft near the distal end;
at least one implantable carrier disposed over the expandable member, the implantable carrier being dividable at a plurality of locations along its length;
a plurality of stent segments disposed along the carrier; and
a sheath slidably disposed over the implantable carrier to constrain expansion of a proximal portion of the expandable member while allowing expansion of a distal portion of the expandable member, wherein the sheath is adapted to divide the implantable carrier at one of the locations,wherein a distal portion of the expandable member expands a distal portion of the implantable carrier and at least one stent segment disposed thereon to deploy the distal portion of the implantable carrier and the at least one stent segment in the body lumen while a second portion of the implantable carrier remains unexpanded within the sheath.
2 Assignments
0 Petitions
Accused Products
Abstract
Stent delivery devices include at least one implantable stent carrier and/or membrane for carrying multiple stents or stent segments over an expandable member. At least a portion of the implantable carrier is expandable by the expandable member to deploy the portion of the carrier and one or more stent segments disposed thereon. A sheath may be retracted to expose and expand a distal portion of the expandable member to expand and deploy a distal portion of the carrier and the stent segment(s) disposed thereon. Stent delivery devices and methods provide enhanced delivery of multiple stents or stent segments by delivering the segments while coupled with one or more implantable carriers and/or membranes that are typically flexible and dividable.
223 Citations
46 Claims
-
1. A stent delivery device for delivering a plurality of stents or stent segments to a treatment site in a body lumen, the device comprising:
-
a catheter shaft having a proximal end and a distal end; an expandable member coupled with the catheter shaft near the distal end; at least one implantable carrier disposed over the expandable member, the implantable carrier being dividable at a plurality of locations along its length; a plurality of stent segments disposed along the carrier; and a sheath slidably disposed over the implantable carrier to constrain expansion of a proximal portion of the expandable member while allowing expansion of a distal portion of the expandable member, wherein the sheath is adapted to divide the implantable carrier at one of the locations, wherein a distal portion of the expandable member expands a distal portion of the implantable carrier and at least one stent segment disposed thereon to deploy the distal portion of the implantable carrier and the at least one stent segment in the body lumen while a second portion of the implantable carrier remains unexpanded within the sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
-
-
34. A stent delivery device for delivering a plurality of stents or stent segments to a treatment site in a body lumen, the device comprising:
-
a catheter shaft having a proximal end and a distal end; an expandable member coupled with the catheter shaft near the distal end; at least one implantable membrane disposed over the expandable member, the implantable membrane being dividable at a plurality of locations along its length; a plurality of slant segments disposed along the membrane; and a sheath slidably disposed over the implantable membrane to constrain expansion of a proximal portion of the expandable member while allowing expansion of a distal portion of the expandable member, wherein the sheath is adapted to divide the implantable membrane at one of the locations, wherein a distal portion of the expandable member expands a distal portion of the implantable membrane and at least one stent segment disposed thereon to deploy the distal portion of the implantable membrane and the at least one stent segment in the body lumen while a second portion of the implantable membrane remains unexpanded within the sheath. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
-
-
42. A method for detivering a stent having a plurality of stem segments to a treatment site in a body lumen, the method comprising;
-
positioning a distal portion of a stent delivery catheter device at the treatment site, the stent delivery catheter having an implantable carrier and a plurality of stent segments disposed along the carrier; and expanding a distal portion of the implantable carrier and at least one distal stent segment disposed thereon to deploy the distal portion of the carrier and the at least one distal stent segment while constraining a proximal portion of the implantable carrier and at least one proximal stent segment disposed thereon; and dividing the implantable carrier between the distal portion and the proximal portion so as to allow deployment of the distal portion of the implantable carrier and the at least one distal stent segment in the body lumen while a second portion of the implantable carrier remains unexpanded within the sheath. - View Dependent Claims (43, 44, 45, 46)
-
Specification