Stent-graft delivery system
First Claim
Patent Images
1. A stent-graft delivery system comprising:
- a pushrod comprising;
a lumen; and
a trigger aperture;
a stent-graft retainment system comprising;
a retainer structure; and
a retainer release trigger directly coupled to said retainer structure, said retainer release trigger comprising a trigger portion extending radially from said lumen through said trigger aperture;
a sheath comprising a trigger trip surface; and
a stent-graft mounted on said pushrod and within said sheath.
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Abstract
A method of delivering a stent-graft includes mounting the stent-graft on a pushrod; radially constraining the stent-graft within a sheath; securing a crown portion of the stent-graft to the pushrod with a retainer structure of a stent-graft retainment system; retracting the sheath to expose the crown portion of the stent-graft; and further retracting the sheath to cause the retainer structure to release the crown portion from the pushrod thus deploying the stent-graft. The retainer structure releases the stent-graft automatically as a result of the retraction of the sheath.
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Citations
19 Claims
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1. A stent-graft delivery system comprising:
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a pushrod comprising; a lumen; and a trigger aperture; a stent-graft retainment system comprising; a retainer structure; and a retainer release trigger directly coupled to said retainer structure, said retainer release trigger comprising a trigger portion extending radially from said lumen through said trigger aperture; a sheath comprising a trigger trip surface; and a stent-graft mounted on said pushrod and within said sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A stent-graft delivery system comprising:
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a stent-graft mounted on a pushrod; a sheath for radially constraining said stent-graft within said sheath; a means for securing a crown portion of said stent-graft to said pushrod; a means for retracting said sheath to expose said crown portion of said stent-graft; and a means for releasing said crown portion from said pushrod during further retraction of said sheath.
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Specification