Method and Apparatus Useful for Transcatheter Aortic Valve Implantation
First Claim
1. A flexible guide catheter for use in a transvascular aortic valve replacement procedure, the guide catheter defining a substantially tubular delivery lumen through which one or more other functional catheters may be introduced to the site of the aortic valve, wherein the guide catheter comprises flexible material that permits the lumen of the guide catheter to change shape in at least one of the following ways:
- (i) to collapse in cross-section to a compact form for introduction into the vasculature, and (ii) to distend in cross-section to a distended form to accommodate the size of said functional catheter introduced therethrough.
1 Assignment
0 Petitions
Accused Products
Abstract
A guide catheter (30) is described for introduction into a patient'"'"'s vasculature, to provide a substantially continuous guide lumen (28) within the vasculature to the ascending aorta (34), through which one or more other functional catheters (44) may be introduced and removed during the procedure. The guide catheter includes an aligner (70) at its distal region for aligning the position and/or inclination of the distal region of the guide catheter with respect to the ascending aorta. The aligner includes an embolic protection filter (88). The guide catheter is made of material collapsible/distensible in cross section to adopt a small shape when no catheter is present inside, and to distend to a large shape to accommodate passage of functional catheter therethrough. The cross-section shape collapses/distends by folding/unfolding of material without elastic stretching of the material.
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Citations
27 Claims
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1. A flexible guide catheter for use in a transvascular aortic valve replacement procedure, the guide catheter defining a substantially tubular delivery lumen through which one or more other functional catheters may be introduced to the site of the aortic valve, wherein the guide catheter comprises flexible material that permits the lumen of the guide catheter to change shape in at least one of the following ways:
- (i) to collapse in cross-section to a compact form for introduction into the vasculature, and (ii) to distend in cross-section to a distended form to accommodate the size of said functional catheter introduced therethrough.
- View Dependent Claims (2, 3, 4, 5, 27)
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6. (canceled)
- 7. A guide catheter for use in a transvascular aortic valve replacement procedure, the guide catheter defining a substantially tubular delivery lumen through which one or more other catheters or devices may be introduced.
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9. (canceled)
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14. (canceled)
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15. (canceled)
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23. Apparatus for aligning, within the ascending aorta, a transvascular delivery catheter for delivering a prosthetic valve to an implantation site, the apparatus comprising at least one aligner element movable from a non-operative configuration in which the aligner element does not protrude substantially, to an operative configuration in which the aligner protrudes in at least one of the following ways:
- (a) outwardly towards the wall of the ascending aorta and (b) abutting, the wall of the ascending aorta.
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24. (canceled)
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25. (canceled)
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26. (canceled)
Specification