Stent-graft delivery system
AssigneeMedtronic Vascular, Inc.
InventorsHarry B Goodson, IV, Jeff Elkins
Life of this patent
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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.
Claims19
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.
A stent-graft delivery system comprising:
- 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.
Dependencies are inferred from the claim text.