Prosthesis Delivery and Deployment Device
First Claim
Patent Images
1. A device for delivering and deploying a prosthesis comprising:
- an elongate sheath having a sheath lumen;
a delivery catheter slidably disposed within the sheath lumen; and
a deployment assist mechanism coupled to the delivery catheter and the sheath and configured to apply a retraction force to the delivery catheter and the sheath;
where the sheath is retractable over the delivery catheter over a retraction distance; and
where the device has a retraction resistance and the retraction force is less than or equal to the retraction resistance over at least a portion of the retraction distance.
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Abstract
A device for delivering and deploying a prosthesis is described and comprises an elongate sheath having a sheath lumen and a delivery catheter slidably disposed within the sheath lumen. A deployment assist mechanism may be coupled to the delivery catheter and the sheath and configured to apply a retraction force to the delivery catheter and the sheath. Additional devices, systems, and methods of delivering and deploying a prosthesis are described.
123 Citations
20 Claims
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1. A device for delivering and deploying a prosthesis comprising:
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an elongate sheath having a sheath lumen; a delivery catheter slidably disposed within the sheath lumen; and a deployment assist mechanism coupled to the delivery catheter and the sheath and configured to apply a retraction force to the delivery catheter and the sheath; where the sheath is retractable over the delivery catheter over a retraction distance; and where the device has a retraction resistance and the retraction force is less than or equal to the retraction resistance over at least a portion of the retraction distance. - 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 device for delivering and deploying a prosthesis comprising:
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an elongate sheath having a sheath lumen; a delivery catheter slidably disposed within the sheath lumen; and a means for reducing the retraction force required to retract the sheath over the delivery catheter over a retraction distance; where the reduced retraction force is greater than or equal to zero over at least a portion of the retraction distance.
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20. A prosthesis delivery and deployment method comprising the steps of:
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providing a device for delivering and deploying a prosthesis comprising; an elongate sheath having a sheath lumen; a prosthesis slidably disposed within the sheath lumen; a delivery catheter slidably disposed within the sheath lumen; and a deployment assist mechanism; applying a first retraction force via the deployment assist mechanism to reduce the force required to retract the sheath; and applying a second retraction force to retract the sheath.
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Specification