Stent delivery system
First Claim
1. A stent delivery system comprising:
- a catheter system including an elongate member including a chamber arranged at a distal end of said system, said chamber being structured and arranged to receive a preloaded stent;
a sheath for covering said stent receiving section, said sheath having a proximal sheath portion extending over a proximal portion of said chamber and structured and arranged to be moveable in a proximal direction and a distal sheath portion extending over a distal portion of said chamber structured and arranged to be moveable in a distal direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A first stent delivery system provided with a sheath for covering the stent, the sheath including proximal sheath portion adapted to be movable in a proximal direction and a distal sheath portion adapted to be moveable in a distal direction. A second stent delivery system including an outer and intermediate tubular members covering a chamber with a preloaded stent, the outer tubular member being retractable prior to the retraction of the intermediate sheath and release of the stent. A third stent delivery system including with an inflatable balloon at a distal end of the system for fixing the system in place within the vessel prior to the release of the stent thereby insure accurate stent deployment.
145 Citations
37 Claims
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1. A stent delivery system comprising:
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a catheter system including an elongate member including a chamber arranged at a distal end of said system, said chamber being structured and arranged to receive a preloaded stent;
a sheath for covering said stent receiving section, said sheath having a proximal sheath portion extending over a proximal portion of said chamber and structured and arranged to be moveable in a proximal direction and a distal sheath portion extending over a distal portion of said chamber structured and arranged to be moveable in a distal direction. - 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 stent delivery system comprising:
a sheath for covering a stent, said sheath having a proximal sheath portion structured and arranged to be moveable in a proximal direction and a distal sheath portion structured and arranged to be moveable in a distal direction, whereby when said proximal sheath portion is moved in said proximal direction and said distal sheath portion is moved in said distal direction a middle portion of said stent is exposed prior to the exposure and expansion of the terminal end portions of said stent. - View Dependent Claims (21, 22)
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23. A stent delivery system comprising:
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a catheter system;
an outer tubular member;
an intermediate tubular member arranged within said outer tubular member;
an inner tubular member arranged within said intermediate tubular member;
wherein said intermediate tubular member and said inner tubular member are structured and arranged to define a stent loading section therebetween; and
wherein each of said outer tubular member and said intermediate tubular member are relatively movable respect to one another and the movement of each of the outer tubular member and intermediate tubular member are manually controllable by an operator.
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24. A stent delivery system comprising:
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a catheter system;
an outer tubular member;
an inner tubular member, said outer tubular member and said inner tubular member defining a stent loading section therebetween;
an inflatable balloon operably coupled to said catheter system, said balloon arranged distally relative to said stent loading section;
wherein said outer tubular member is manually movable by an operator to enable the selective retraction of said outer tubular member. - View Dependent Claims (25)
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26. A catheter assembly for delivering and deploying a self-expanding stent, comprising:
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an elongate member having an axially extending stent-mounting portion at a distal end region thereof;
a self-expanding stent having proximal and distal ends coaxially mounted in a collapsed configuration on said stent-mounting portion of said elongate member;
an outer tubular proximal sheath portion coaxially mounted on said elongate member at said distal region thereof, said proximal sheath portion having a distal end and being structured and arranged to move between a closed position in which said distal end of said proximal sheath portion overlies said stent and is situated between the ends of said stent, and an open position in which said distal end of said proximal sheath portion, does not overlie said stent and is situated proximally of said proximal end of said stent;
an outer tubular distal sheath portion coaxially mounted on said elongate member at said distal region thereof, said distal sheath portion having a proximal end and being structured and arranged to move between a closed position in which said proximal end of said distal sheath portion overlies said stent and is situated between the ends of said stent, and an open position in which said proximal end of said distal sheath portion does not overlie said stent and is situated distally of said distal end of said stent;
a mechanism situated in part at, and operable from, a proximal end region of said catheter assembly for controlling the movement of said proximal and distal sheath portions from said closed to said open positions thereof;
whereby said stent is delivered to a desired treatment site within said vessel while mounted in a collapsed configuration on said stent-mounting portion of said elongate member with said proximal and distal sheath portions situated in their closed positions restraining the expansion of said stent, and is deployed at said treatment site by operation of said mechanism to move said proximal and distal sheath portions to their open positions to allow the expansion and deployment of said stent. - View Dependent Claims (27, 28, 29, 30, 31)
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32. An elongate catheter assembly for delivering and deploying a self-expanding stent, comprising:
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an elongate member having an axially extending stent-mounting portion at a distal end region thereof;
an outer tubular proximal sheath portion coaxially mounted on said elongate member at said distal region thereof, said proximal sheath portion being structured and to move between a closed position in which said proximal sheath portion partially overlies said stent-mounting portion of said elongate member, and an open position in which said proximal sheath portion does not overlie said stent-mounting portion of said elongate member or any part thereof;
an outer tubular distal sheath portion coaxially mounted on said elongate member at said distal region thereof, said distal sheath portion being structured and arranged to move between a closed position in which said distal sheath portion partially overlies said stent-mounting portion of said elongate member, and an open position in which said distal sheath portion does not overlie said stent-mounting portion or any part thereof;
a mechanism situated in part at, and operable from, a proximal end region of said catheter assembly for controlling the movement of said proximal and distal sheath portions from said closed to said open positions thereof;
whereby a stent is delivered to a desired treatment site within said vessel while mounted in a collapsed configuration on said stent-mounting portion of said elongate member with said proximal and distal sheath portions situated in their closed positions restraining the expansion of the stent, and is deployed at said treatment site by operation of said mechanism to move said proximal and distal sheath portions to their open positions to allow the expansion and deployment of the stent. - View Dependent Claims (33, 34, 35, 36, 37)
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Specification