Prosthesis Delivery and Deployment Device
AssigneesCook Incorporated, MED Institute, Inc.
InventorsTimothy A. Chuter, David D. Grewe, Blayne A. Roeder, Alan R. Leewood
Life of this patent
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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.
Claims20
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.
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 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.
A prosthesis delivery and deployment method comprising the steps of:
- 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.
Dependencies are inferred from the claim text.