Prosthesis delivery system with tip travel limiter and method of use
AssigneeMedtronic Vascular, Inc.
InventorRobert J. Murray, III
Life of this patent
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Abstract
A delivery catheter includes a tip, a spindle and a lock mechanism. The tip includes a tapered portion and a tip sleeve. The tip sleeve extends proximally and has a lumen. The spindle includes a plurality of spindle pins. The lock mechanism locks the tip sleeve to the spindle to prevent relative longitudinal movement between the spindle and the tip sleeve. The delivery catheter includes a delivery configuration with the tip sleeve covering the spindle pins and a release configuration with a proximal end of the tip sleeve distal of the spindle pins. The lock mechanism locks the prosthesis delivery system in the release configuration. Each spindle pin of the plurality of spindle pins includes a smooth, curved profile.
Claims11
A prosthesis delivery system comprising:
- a prosthesis comprising at least one stent and a graft material, wherein the prosthesis has a radially compressed configuration for delivery through a vasculature and a radially expanded configuration for deployment;
- and
- a delivery catheter having a delivery configuration and a release configuration, the delivery catheter including:
- a tip including a tapered portion and a tip sleeve extending proximally, wherein the tip sleeve is configured to retain a proximal portion of the prosthesis in a radially compressed state in the delivery configuration for delivery to a treatment location;
- a spindle including a plurality of spindle pins;
- a lock, wherein the lock locks the tip sleeve to the spindle to prevent relative longitudinal movement between the spindle and the tip sleeve when the delivery catheter is in the release configuration;
- an outer sheath configured to retain a distal portion of the prosthesis in a radially compressed state in the delivery configuration for delivery to a treatment location;
- an inner shaft coupled to the tip and extending proximally through the spindle to an actuator at a proximal portion of the prosthesis delivery system;
- and
- a spindle shaft coupled to the spindle and disposed around the inner shaft,
- wherein the inner shaft is longitudinally slidable relative to the spindle shaft with the prosthesis delivery system in the delivery configuration.
Dependencies are inferred from the claim text.