ENDOGRAFT INTRODUCER AND A CAPSULE ASSEMBLY FOR AN ENDOGRAFT INTRODUCER
First Claim
1. A capsule assembly for an endograft introducer, the assembly comprising:
- a capsule having a cavity and a capsule wall, the capsule wall having an external surface and terminating in a distal end, the distal end of the capsule wall tapering internally with an internally tapered portion before tapering externally with an externally tapered portion, resulting in a thickening of the capsule wall before thinning to an end; and
a capsule plug, the capsule plug comprising;
a tip portion having a lead-in surface and an abutment surface; and
a tail portion having an external surface engagable with an inside surface of the capsule wall,wherein the capsule is slidably movable with respect to the capsule plug from a first position in which the distal end of the capsule wall surrounds an opening into the cavity to a second position in which the distal end of the capsule wall is positioned proximally with respect to the abutment surface, whereby movement of the tip portion into the capsule is resisted by abutment between the end of the capsule wall and the abutment surface.
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Accused Products
Abstract
A capsule assembly for an endograft introducer is disclosed. The assembly comprises: a capsule and a capsule plug. The capsule has a cavity for receiving an end of a stent graft and a capsule wall terminating in a distal end. The capsule plug comprises: a tip portion having a lead-in surface and an abutment surface; and a tail portion having an external surface engagable with an inside surface of the capsule wall. The capsule is slidably movable with respect to the capsule plug from a first position in which the distal end of the capsule wall surrounds an opening into the cavity to a second position in which the distal end of the capsule wall is positioned proximally with respect to the abutment surface, whereby movement of the tip portion into the capsule is resisted by abutment between the distal end of the capsule wall and the abutment surface.
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Citations
20 Claims
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1. A capsule assembly for an endograft introducer, the assembly comprising:
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a capsule having a cavity and a capsule wall, the capsule wall having an external surface and terminating in a distal end, the distal end of the capsule wall tapering internally with an internally tapered portion before tapering externally with an externally tapered portion, resulting in a thickening of the capsule wall before thinning to an end; and a capsule plug, the capsule plug comprising; a tip portion having a lead-in surface and an abutment surface; and a tail portion having an external surface engagable with an inside surface of the capsule wall, wherein the capsule is slidably movable with respect to the capsule plug from a first position in which the distal end of the capsule wall surrounds an opening into the cavity to a second position in which the distal end of the capsule wall is positioned proximally with respect to the abutment surface, whereby movement of the tip portion into the capsule is resisted by abutment between the end of the capsule wall and the abutment surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16, 19)
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10. A capsule assembly for an endograft introducer, the assembly comprising:
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a capsule having a cavity and a capsule wall, the capsule wall having an external surface and terminating in a distal end having a substantially flat end; and a capsule plug, the capsule plug comprising; a tip portion having a lead-in surface and an abutment surface; a tail portion having an external surface engagable with an inside surface of the capsule wall; and an intermediate portion joining the tip portion to the tail portion, the intermediate portion having a landing zone, the distal end of the capsule wall receivable in the landing zone, wherein the capsule is slidably movable with respect to the capsule plug from a first position in which the distal end of the capsule wall surrounds an opening into the cavity to a second position in which the distal end of the capsule wall is received in the landing zone adjacent to the abutment surface providing a smooth transition from the lead-in surface to the external surface of the capsule wall so as to facilitate retraction of the capsule assembly through an endograft. - View Dependent Claims (11, 12, 13, 14, 15, 17, 20)
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18. A capsule assembly for an endograft introducer, the assembly comprising:
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a capsule having a cavity and a capsule wall, the capsule wall having an external surface and terminating in a distal end, the capsule wall having a main portion and an internally tapered portion, the internally tapered portion distal to the main portion, the internally tapered portion having a wall thickness equal to or greater than a thickness of the main portion adjacent to the internally tapered portion over all, or most of, the internally tapered portion; and a capsule plug, the capsule plug comprising; a tip portion having a lead-in surface and an abutment surface; and a tail portion having an external surface engagable with an inside surface of the capsule wall, wherein the capsule is slidably movable with respect to the capsule plug from a first position in which the distal end of the capsule wall surrounds an opening into the cavity to a second position in which the distal end of the capsule wall is positioned proximally with respect to the abutment surface, whereby movement of the tip portion into the capsule is resisted by abutment between the end of the capsule wall and the abutment surface.
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Specification