Stent delivery system with stent securement means
DCFirst Claim
1. A stent delivery system for carrying and delivering a stent having a first end and a second end and a contracted state and an expanded state, the system comprising:
- a catheter having a shaft having a diameter and expandable inflatable means associated therewith at a distal part of the shaft and including mounting and retaining means for receiving the stent on the expandable inflatable means whereby the stent is radially expanded upon inflation of the inflatable means, the mounting and retaining means including at least one mounting body, the at least one mounting body having a length and an outer surface diameter and being carried on and surrounding the shaft inside the inflatable means whereby the diameter of the shaft is increased at the distal part for facilitating the mounting and retaining of the stent and wherein, when the stent is mounted on the catheter, the at least one mounting body is between the stent and the shaft, the outer surface diameter of the at least one mounting body being substantially constant along its length.
1 Assignment
Litigations
1 Petition
Accused Products
Abstract
A stent delivery system to facilitate introduction and placement of a stent, including a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state: a stent positioned around the distal portion of the catheter having a contracted condition and being expandable to an expanded condition, and being sized in the contracted condition to closely surround the catheter in the contracted state, the expandable distal portion of the catheter including a balloon within which there is included on the catheter shaft at least one body of a diameter larger than the catheter shaft to which the stent and balloon are fitted, as by crimping, for holding the stent in place until it is released therefrom by expansion of the balloon.
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Citations
37 Claims
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1. A stent delivery system for carrying and delivering a stent having a first end and a second end and a contracted state and an expanded state, the system comprising:
a catheter having a shaft having a diameter and expandable inflatable means associated therewith at a distal part of the shaft and including mounting and retaining means for receiving the stent on the expandable inflatable means whereby the stent is radially expanded upon inflation of the inflatable means, the mounting and retaining means including at least one mounting body, the at least one mounting body having a length and an outer surface diameter and being carried on and surrounding the shaft inside the inflatable means whereby the diameter of the shaft is increased at the distal part for facilitating the mounting and retaining of the stent and wherein, when the stent is mounted on the catheter, the at least one mounting body is between the stent and the shaft, the outer surface diameter of the at least one mounting body being substantially constant along its length. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A stent delivery system comprising:
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a catheter having a shaft and expandable inflatable means associated therewith at a distal part of the shaft and including mounting and retaining means for receiving a stent, the stent having a first end and a second end and a contracted state and an expanded state, to be delivered upon expansion of the inflatable means, the mounting and retaining means including at least one mounting body, the at least one mounting body being inside the inflatable means and carried on the shaft, the at least one mounting body being positioned on the shaft such that, when the stent is loaded onto the inflatable means and the shaft in the stent'"'"'s contracted state, at least a portion of the at least one mounting body is under the stent, the at least one mounting body having a length and an outer surface diameter, wherein the outer surface diameter is substantially constant along the length, and the stent crimped to the inflatable means and the at least one mounting body such that a portion of the stent is deformed to a diameter less than that of the at least one mounting body, thereby facilitating mounting and retaining of the stent. - View Dependent Claims (15, 16, 17, 18, 19)
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- 20. A balloon catheter for intraluminal delivery of a stent, the catheter comprising a shaft having a diameter, a balloon associated with a distal portion of the shaft for receiving a stent, the stent having a first end and a second end and a contracted state and an expanded state, and means for inflating the balloon, the shaft including at least one mounting body radially carried on the shaft inside the balloon, whereby the diameter of the shaft is increased inside the balloon to facilitate mounting and retaining of a stent to the catheter over the balloon, the at least one mounting body being positioned on the shaft such that when the stent is loaded onto the inflatable means and the shaft in the stent'"'"'s contracted state at least a portion of the at least one mounting body is under the stent and between the first and second ends of the stent, the at least one mounting body having a length and an outer surface diameter, wherein the outer surface diameter is substantially constant along the length.
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35. A stent delivery system comprising:
a radially expandable stent of generally cylindrical configuration, having a length, a first end and a second end and a contracted state and an expanded state, and a catheter having a shaft having a diameter and expandable inflatable means associated therewith at a distal part of the shaft, wherein the inflatable means comprises a balloon, and including mounting and retaining means for receiving the stent on the expandable inflatable means for radial expansion of the stent upon inflation of the inflatable means, the mounting retaining means including at least one mounting body carried on and surrounding the shaft inside the inflatable means, the at least one mounting body being at least ⅔
the length of the stent and being positioned on the shaft such that when the stent is loaded onto the inflatable means and the shaft in the stent'"'"'s contracted state at least a portion of the at least one mounting body is under the stent and between the first and second ends of the stent, whereby the diameter of the shaft and inflatable portion are increased at the distal part for facilitating the mounting and retaining of the stent.- View Dependent Claims (36, 37)
Specification