Dilatation and stent delivery system and related methods
First Claim
Patent Images
1. A system comprising:
- a first catheter, the first catheter comprising a first inflatable member;
a second catheter, the second catheter comprising;
an inner shaft, the inner shaft comprising a stent retaining region proximal to a distal end of the inner shaft, the inner shaft defining a lumen sized to receive the first catheter and to permit movement of the first catheter relative to the second catheter;
an outer sheath, the inner shaft positioned within a lumen defined by the outer sheath, the outer sheath having a cross-sectional size;
a first tip positioned distal to the stent retaining region, the first tip comprising a first portion, the first portion having a first cross-sectional size at least as large as the cross-sectional size of the outer sheath.
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Abstract
The invention relates to a system for dilatation of a body passage and delivery of a stent into the body passage of a patient, and related methods of using such a system. The dilatation and stent delivery system may comprise a dilatation catheter having an expandable member on a distal end, and a stent delivery catheter configured to retain a stent and deliver the stent to a body passage. The stent delivery catheter defines a lumen sized to receive the dilatation catheter and permit movement of the dilatation catheter relative to the stent delivery catheter.
16 Citations
19 Claims
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1. A system comprising:
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a first catheter, the first catheter comprising a first inflatable member; a second catheter, the second catheter comprising; an inner shaft, the inner shaft comprising a stent retaining region proximal to a distal end of the inner shaft, the inner shaft defining a lumen sized to receive the first catheter and to permit movement of the first catheter relative to the second catheter; an outer sheath, the inner shaft positioned within a lumen defined by the outer sheath, the outer sheath having a cross-sectional size; a first tip positioned distal to the stent retaining region, the first tip comprising a first portion, the first portion having a first cross-sectional size at least as large as the cross-sectional size of the outer sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A catheter system comprising:
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a tubular member, the tubular member defining a lumen and having a cross-sectional size and a distal end; a first shaft, at least a portion of the first shaft positioned within the lumen defined by the tubular member, the first shaft having a tip and an outer surface, the tip comprising a first tip portion that has a cross-sectional size at least equal to the cross-sectional size of the tubular member so that the distal end of the tubular member does not extend distally beyond the first tip portion, the outer surface comprising a stent retaining region proximal to the tip; a stent mounted onto the stent retaining region of the first shaft and positioned between the first shaft and the tubular member; a second shaft, at least a portion of the second shaft positioned within a lumen defined by the first shaft, the second shaft further comprising an inflatable member; wherein the distal end of the tubular member touches the first tip portion and the stent is positioned between the first shaft and the tubular member. - View Dependent Claims (16, 17, 18)
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19. A system comprising:
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a first catheter, the first catheter comprising a first inflatable member; a second catheter, the second catheter comprising; an inner shaft, the inner shaft comprising a stent retaining region proximal to a distal end of the inner shaft and a second inflatable member positioned distal to the stent retaining region, the inner shaft defining a lumen sized to receive the first catheter and to permit movement of the first catheter relative to the second catheter; an outer sheath, the inner shaft positioned within a lumen defined by the outer sheath, the outer sheath having a cross-sectional size; a first tip, the first tip comprising a first portion, the first portion having a first cross-sectional size at least as large as the cross-sectional size of the outer sheath, the tip being distal to the stent retaining region and the second inflatable member.
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Specification