MULTIPLE STENT DELIVERY SYSTEM
First Claim
1. A stent delivery system, comprising:
- a) a delivery catheter having an inner tubular member and an outer tubular member adapted for axial movement with respect to each other, such that the outer tubular member has an advanced configuration surrounding a distal section of the inner tubular member, and a proximally retracted configuration, and the inner tubular member is configured for proximally withdrawing the distal section of the inner tubular member into the outer tubular member in the retracted configuration and thereby transitioning the outer tubular member from the retracted to the advanced configuration;
b) a first stent and at least one second proximal stent, in a collapsed configuration in a space between the inner tubular member and outer tubular member with the outer tubular member in the advanced configuration, and configured to radially self expand from the collapsed configuration to an expanded configuration upon removal of a radially restraining force of the catheter outer tubular member, and the second collapsed stent is longitudinally spaced apart proximally from the first stent; and
c) a reversibly collapsible stent stop secured to the inner tubular member and slidably positionable to different locations relative to the collapsed stents in the delivery catheter, configured to radially collapse as the inner tubular member is proximally withdrawn into the outer tubular member and through the second collapsed stent, and to radially self expand along at least a section thereof at a location proximally adjacent to a proximal end of the second collapsed stent to an expanded configuration, such that the stent stop initially abuts a proximal end of the first collapsed stent to thereby inhibit proximal movement of the first stent in a first locational configuration, and is configured for being slidably positioned to abut the proximal end of the second collapsed stent to thereby inhibit proximal movement of the second stent in a second locational configuration.
1 Assignment
0 Petitions
Accused Products
Abstract
A stent delivery system having multiple stents in a single delivery catheter, configured for delivering and deploying at least some of the stents in a patient'"'"'s anatomy. A reversibly collapsible stent stop secured to the inner tubular member abuts a proximal end of a first distal stent prior to deployment of the first stent, and is configured to radially collapse as the inner tubular member is proximally withdrawn into the outer tubular member through the second collapsed stent, and radially self expand along at least a section thereof at a location proximally adjacent to a proximal end of a second collapsed stent prior to deployment of the second stent after deployment of the first stent. One or two stent retainer are attached to the shaft of a stent delivery catheter to prevent longitudinal shifting of the stent along the longitudinal axis of the catheter.
-
Citations
33 Claims
-
1. A stent delivery system, comprising:
-
a) a delivery catheter having an inner tubular member and an outer tubular member adapted for axial movement with respect to each other, such that the outer tubular member has an advanced configuration surrounding a distal section of the inner tubular member, and a proximally retracted configuration, and the inner tubular member is configured for proximally withdrawing the distal section of the inner tubular member into the outer tubular member in the retracted configuration and thereby transitioning the outer tubular member from the retracted to the advanced configuration; b) a first stent and at least one second proximal stent, in a collapsed configuration in a space between the inner tubular member and outer tubular member with the outer tubular member in the advanced configuration, and configured to radially self expand from the collapsed configuration to an expanded configuration upon removal of a radially restraining force of the catheter outer tubular member, and the second collapsed stent is longitudinally spaced apart proximally from the first stent; and c) a reversibly collapsible stent stop secured to the inner tubular member and slidably positionable to different locations relative to the collapsed stents in the delivery catheter, configured to radially collapse as the inner tubular member is proximally withdrawn into the outer tubular member and through the second collapsed stent, and to radially self expand along at least a section thereof at a location proximally adjacent to a proximal end of the second collapsed stent to an expanded configuration, such that the stent stop initially abuts a proximal end of the first collapsed stent to thereby inhibit proximal movement of the first stent in a first locational configuration, and is configured for being slidably positioned to abut the proximal end of the second collapsed stent to thereby inhibit proximal movement of the second stent in a second locational configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of delivering and deploying self expanding stents in a patient'"'"'s anatomy, comprising:
-
a) introducing within a body lumen of the patient a stent delivery catheter comprising i) a delivery catheter having an inner tubular member and an outer tubular member adapted for axial movement with respect to each other, such that the outer tubular member has an advanced configuration surrounding a distal section of the inner tubular member, and a proximally retracted configuration, and the inner tubular member is configured for proximally withdrawing the distal section of the inner tubular member into the outer tubular member in the retracted configuration and thereby transitioning the outer tubular member from the retracted to the advanced configuration; ii) a first stent and at least one second proximal stent, in a collapsed configuration in a space between the inner tubular member and outer tubular member with the outer tubular member in the advanced configuration, and configured to radially self expand from the collapsed configuration to an expanded configuration upon removal of a radially restraining force of the catheter outer tubular member, and the second collapsed stent is longitudinally spaced apart proximally from the first stent; and iii) a reversibly collapsible stent stop secured to the inner tubular member and slidably positionable to different locations relative to the collapsed stents in the delivery catheter, configured to radially collapse as the inner tubular member is proximally withdrawn into the outer tubular member and through the second collapsed stent, and to radially self expand along at least a section thereof at a location proximally adjacent to a proximal end of the second collapsed stent to an expanded configuration, such that the stent stop initially abuts a proximal end of the first collapsed stent to thereby inhibit proximal movement of the first stent in a first locational configuration, and is configured for being slidably positioned to abut the proximal end of the second collapsed stent to thereby inhibit proximal movement of the second stent in a second locational configuration; b) advancing the stent delivery system to position the first collapsed stent at a desired treatment site in the body lumen with the outer tubular member in the advanced configuration, and deploying the first stent by proximally retracting the outer member relative to the inner tubular member and first stent with the stent stop in the first locational configuration, such that the stent stop inhibits proximal movement of the first stent, so that the first stent radially self expands to a deployed configuration in the body lumen; c) proximally withdrawing the distal section of the inner tubular member into the outer tubular member in the retracted configuration and thereby transitioning the outer tubular member from the retracted to the advanced configuration, and positioning the stent stop in the second locational configuration by collapsing the stent stop as the stent stop is proximally retracted through the collapsed second stent and radially self expanding the stent stop along at least a section thereof at a location proximally adjacent to the proximal end of the second collapsed stent. - View Dependent Claims (15)
-
-
16. A stent delivery system, comprising:
-
a) a delivery catheter having an inner tubular member and an outer tubular member adapted for axial movement with respect to each other, such that the outer tubular member has an advanced configuration surrounding a distal section of the inner tubular member, and a proximally retracted configuration, and the inner tubular member is configured for proximally withdrawing the distal section of the inner tubular member into the outer tubular member in the retracted configuration and thereby transitioning the outer tubular member from the retracted to the advanced configuration; b) a first stent and at least one second proximal stent, in a collapsed configuration in a space between the inner tubular member and outer tubular member with the outer tubular member in the advanced configuration, and configured to radially self expand from the collapsed configuration to an expanded configuration upon removal of a radially restraining force of the catheter outer tubular member, and the second collapsed stent is longitudinally spaced apart proximally from the first stent; and c) a first stent stop in abutting relationship with the first stent and an additional stent stop associated with each additional stent, each additional stent stops being in an abutting relationship with the additional stents. - View Dependent Claims (17, 18, 19)
-
-
20. A stent delivery catheter, comprising:
-
an elongate shaft member; an expandable member associated with the elongate shaft member; a stent in a collapsed configuration mounted to the expandable member; and a pair of stent retainers, each having a stent retainer mounting portion secured to the elongate shaft member and an engaging portion slidingly disposed on a portion of the expandable member, such that each stent retainer initially engages an end of the collapsed stent to thereby inhibit movement of the stent from its mounted position. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. A stent delivery catheter, comprising:
-
an elongate shaft member; an expandable member associated with the elongate shaft member; a plurality of struts forming a stent, the stent being mounted in a collapsed configuration on the expandable member; and at least one stent retainer ring disposed on a portion of mounted stent such that the stent retainer ring inhibits proximal movement of the stent from its mounted position, the retainer ring having a width and a thickness, the ring having a plurality of tear sections which have a width which is less that the width of the remaining portion of the ring. - View Dependent Claims (30, 31, 32, 33)
-
Specification