Stent delivery device and method
First Claim
1. A delivery system for intraluminal delivery of a self-expanding prosthesis at a site within a body canal, comprising:
- a housing sized and shaped to retain a self-expanding prosthesis in a first state;
a delivery tool for manipulation by an operator and having a catheter assembly extending distally from the delivery tool and including a lumen with a capture zone, the capture zone sized and shaped to retain the self-expanding prosthesis in a compressed state that is radially smaller than the first state, the housing removably attached to the catheter assembly; and
a securing mechanism movably disposed relative to the lumen and including a first portion slidable within the lumen and a second portion that is positionable within the housing to extend at least partially through the self-expanding prosthesis and including a radially extending feature to engage with the self-expanding prosthesis when in the first state thereof so that the securing mechanism and lumen can be moved relative to one another for transferring the self-expanding prosthesis from the housing to the capture zone.
11 Assignments
0 Petitions
Accused Products
Abstract
A stent delivery system and method for intraluminal delivery and deployment of a self-expanding prosthesis at a site within a body canal is provided. The delivery system comprises a housing removably attached to a delivery tool. The housing stores the self-expanding prosthesis in an expanded state. The delivery tool has a catheter assembly with a capture zone. The capture zone receives and contains the self-expanding prosthesis in a compressed state. A securing mechanism couples the catheter assembly to the self-expanding prosthesis, wherein the securing mechanism transfers the self-expanding prosthesis from the housing to the capture zone immediately prior to the delivery and deployment procedure.
336 Citations
43 Claims
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1. A delivery system for intraluminal delivery of a self-expanding prosthesis at a site within a body canal, comprising:
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a housing sized and shaped to retain a self-expanding prosthesis in a first state;
a delivery tool for manipulation by an operator and having a catheter assembly extending distally from the delivery tool and including a lumen with a capture zone, the capture zone sized and shaped to retain the self-expanding prosthesis in a compressed state that is radially smaller than the first state, the housing removably attached to the catheter assembly; and
a securing mechanism movably disposed relative to the lumen and including a first portion slidable within the lumen and a second portion that is positionable within the housing to extend at least partially through the self-expanding prosthesis and including a radially extending feature to engage with the self-expanding prosthesis when in the first state thereof so that the securing mechanism and lumen can be moved relative to one another for transferring the self-expanding prosthesis from the housing to the capture zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for preparing an expandable prosthesis to be delivered within a body canal, the method comprising:
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providing a delivery system having a housing removably attached to a delivery tool, the delivery tool including a catheter assembly with a lumen and a capture zone;
wherein the expandable prosthesis is stored in a first state within the housing; and
transferring the expandable prosthesis from the housing to the capture zone of delivery tool by engaging the expandable prosthesis with a radially extending feature of securing mechanism that is at least partially positioned through the expandable prosthesis and movably disposed relative to the lumen while the expandable prosthesis is in the first state and pulling the expandable prosthesis into the capture zone while also compressing the expandable prosthesis from the first state to a compressed state during the transfer. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A delivery system for intraluminal delivery of a prosthesis at a site within a body canal, comprising:
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a cartridge comprising;
a stent guide sized and shaped to fit within an interior of the prosthesis, thereby permitting a prosthesis to be retained in a substantially expanded state;
a housing for operably supporting the stent guide and having a receiving chamber being sized and shaped to substantially encase at least a portion of said guide and to provide a space between said guide and an inner surface of the housing to retain said prosthesis, said housing and guide also including tapered portions that define a further radially decreasing space that leads to a proximal opening of the housing, the radially decreasing space to direct and reshape said prosthesis when said prosthesis is moved toward the proximal opening in said housing; and
a securing member having a first portion at a proximal end and a second portion at a distal end, said second portion being removably attachable to the prosthesis and useable to move the prosthesis through said proximal opening in said housing; and
a delivery tool having a catheter assembly including a lumen with a capture zone, the capture zone sized and shaped to retain the expandable prosthesis in a compressed state, the delivery tool removably attachable to the cartridge and the first portion of the securing member being slidably disposable relative to and at least partially within the lumen. - View Dependent Claims (35, 36, 37)
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38. A cartridge, attachable to a delivery device for intraluminal delivery of a self-expanding prosthesis at a site within a body canal, the cartridge useable to transfer the self-expanding prosthesis from within the cartridge to a capture zone within the delivery device, the cartridge comprising:
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a housing sized and shaped to retain the self-expanding prosthesis in a first state, the housing also having a tapered portion leading to a proximal opening that is for connection to a capture zone of a lumen of the delivery device;
a self-expanding prosthesis provided within the housing in the first state, which is a substantially expanded state thereof, and a securing mechanism operably attached at a first portion thereof to the self-expanding prosthesis and attachable at a second portion thereof to the delivery device, the first portion of the securing mechanism at least partially extending within the substantially expanded prosthesis, and the second portion of the securing mechanism being connectable to the delivery device to pull the self-expanding prosthesis from the housing to the capture zone within the delivery device when the securing member is attached to the delivery device. - View Dependent Claims (39, 40, 41, 42, 43)
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Specification