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US 2004/0167603 A1Published application
Friction reducing agent for loading a self-expanding stent
AssigneeCordis Corporation
InventorsKaren Paulette Jackson, Jonathan George Parker, Christopher William Widenhouse
Life of this patent
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Abstract
A system for loading self-expanding stents into a stent delivery system that comprises a lubricious coating on one or more components to substantially reduce the frictional forces associated with loading stents. The stents may be bare or coated stents. The lubricious coating comprises a solution of Dow Corning® MDX4-4159 Fluid 50% Medical Grade Dispersion.
Claims11
A method for loading self-expanding stents into stent delivery systems comprising:
- applying a solution of a silicon based lubricious material to a crimping film;
- curing the silicon based lubricious material at a given temperature and relative humidity for a predetermined period of time;
- reducing the diameter of the self-expanding stent to a diameter less than or equal to the inside diameter of an outer sheath of a catheter of the stent delivery system utilizing the crimping film coated with the lubricious material;
- and
- transferring the reduced diameter self-expanding stent from the crimping film into the stent delivery system utilizing a transfer tube.
2 more elements
A system for loading self-expanding stents into self-expanding stent delivery systems comprising:
- a crimping film for reducing the diameter of the self-expanding stent to a diameter less than or equal to the inside diameter of an outer sheath of a catheter of the stent delivery system;
- a transfer tube adapted to receive the reduced diameter stent from the compressive force member and load it into the catheter of the self-expanding stent delivery system;
- and
- a curable, silicone based lubricious material affixed to a surface of the crimping film.
1 more element
Dependencies are inferred from the claim text.