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US 2014/0277366 A1Published application
Delivery system for a self-expanding medical device
AssigneeCook Medical Technologies LLC
InventorsSean Cummins, Dean R. Puckett, Brent A. Mayle, James C. Merk, Tawnya Wood, Tiffani L. Cannon
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Abstract
A delivery system is provided for self-expanding medical devices, such as stents. The delivery system has a restraining sheath that maintains the stent in a compressed state prior to deployment. The restraining sheath terminates distally from the deployment handle, and a wire connects the restraining sheath to the deployment handle. The restraining sheath is withdrawn from the stent to deploy the stent by pulling the wires proximally at the deployment handle.
Claims20
A self-expanding medical device delivery system, comprising:
- a self-expanding medical device comprising a distal end, a proximal end and a length therebetween;
- an inner catheter extending proximally from said medical device to a deployment handle, said inner catheter comprising a stop surface adjacent said proximal end of said medical device and adapted to prevent said medical device from moving proximally during deployment of said medical device;
- a restraining sheath extending over said medical device and adapted to prevent said medical device from self-expanding prior to deployment of said medical device, said restraining sheath comprising an inner circumference and an outer circumference that are both generally constant along an entire length of said restraining sheath, and a proximal end of said restraining sheath terminating distally from said deployment handle;
- and
- a wire adhered to said restraining sheath and extending proximally from said restraining sheath to said deployment handle;
- wherein said medical device is deployed by pulling said wire proximally to withdraw said restraining sheath proximally away from said medical device.
3 more elements
Dependencies are inferred from the claim text.