Catheter for forming a fistula
AssigneeClearstream Technologies Limited
InventorsJohn O'Shea, Jakob Wells, Michael Whelan
Life of this patent
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Abstract
A catheter for forming a fistula between two vessels. The catheter comprises a housing, an electrode disposed at least partially within the housing. The electrode comprises a distal portion, a proximal portion and an intermediate portion therebetween for contacting a vessel wall and forming the fistula. The catheter further comprises a valve destruction wire disposed at least partially within the housing for contacting and destroying a venous valve.
Claims30
A catheter for forming a fistula between two vessels, comprising:
- a housing;
- an electrode disposed at least partially within the housing, the electrode comprising a distal portion, a proximal portion and an intermediate portion therebetween for contacting a vessel wall and forming the fistula;
- a valve destruction wire disposed at least partially within the housing for contacting and destroying a venous valve.
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16-22. (canceled)
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30-31. (canceled)
33-34. (canceled)
A method of forming a fistula using a catheter having a housing with an electrode and a valve destruction wire at least partially disposed within the housing, the method comprising:
- inserting the catheter into a vein through an access site;
- advancing the catheter to a treatment site where the fistula is to be formed;
- moving the electrode from a radially contracted position to a radially expanded position;
- supplying RF energy to the electrode to form the fistula;
- moving the valve destruction wire from a radially contracted position to a radially expanded position;
- moving the valve destruction wire to a valve in the vein which is to be destroyed;
- rotating the catheter while moving it longitudinally back and forth to destroy the valve.
38-40. (canceled)
Dependencies are inferred from the claim text.