A catheter for forming a fistula
AssigneeTVA Medical, Inc.
InventorsMichael Whelan, Jakob Wells, John O'Shea
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Abstract
A catheter for forming a fistula between two vessels. The catheter comprises a catheter body having a longitudinal axis, an electrode extending radially from the catheter body for contacting a vessel wall and forming the fistula, and a cutting unit disposed proximally or distally of the electrode for cutting a venous valve.
Claims52
A catheter for forming a fistula between two vessels, comprising:
- a catheter body having a longitudinal axis;
- an electrode extending radially from the catheter body for contacting a vessel wall and forming the fistula;
- and
- a cutting unit disposed proximally or distally of the electrode for cutting a venous valve.
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A method of forming a fistula using a catheter having a catheter body with an electrode and a cutting unit disposed proximally or distally of the electrode, the method comprising:
- inserting the catheter into a vein through an access site;
- moving the electrode from a radially contracted configuration to a radially expanded configuration;
- forming the fistula by supplying RF energy to the electrode;
- moving the cutting unit from a radially contracted configuration to a radially expanded configuration;
- and
- cutting a valve by moving the catheter longitudinally in a proximal or distal direction.
Dependencies are inferred from the claim text.