Catheter having circular ablation assembly
First Claim
1. A catheter comprising:
- an elongated flexible tubular catheter body having an axis and proximal and distal ends;
an ablation assembly at the distal end of the catheter body having a preformed generally circular curve that is generally transverse to the axis of the catheter body, the ablation assembly comprising a flexible tubing and carrying a tip electrode at its distal end, the tip electrode having an asymmetric design, wherein a first side of the tip electrode extending longitudinally from a proximal end to a distal end of the tip electrode and being adapted to contact tissue extends radially beyond an outer wall of the flexible tubing and a second side of the tip electrode generally opposite the first side and extending longitudinally from the proximal to the distal end of the tip electrode is generally even with the outer wall of the flexible tubing; and
an electrode lead wire extending through the catheter body and into the ablation assembly and having a distal end connected to the tip electrode.
1 Assignment
0 Petitions
Accused Products
Abstract
A catheter comprises a catheter body with an ablation assembly at its distal end. The ablation assembly has a preformed generally circular curve generally transverse to the axis of the catheter body, and comprises a flexible tubing that carries a tip electrode at its distal end. In use, the generally circular curve contacts the inner circumference of a tubular region of a patient'"'"'s heart so that the tip electrode contacts tissue along the inner circumference. After ablating the tissue at this first position, the ablation assembly can be rotated so that the tip electrode contacts tissue at a second position along the inner circumference. After ablating the tissue at the second position, the procedure can be repeated to form a lesion of the desired length.
-
Citations
10 Claims
-
1. A catheter comprising:
-
an elongated flexible tubular catheter body having an axis and proximal and distal ends; an ablation assembly at the distal end of the catheter body having a preformed generally circular curve that is generally transverse to the axis of the catheter body, the ablation assembly comprising a flexible tubing and carrying a tip electrode at its distal end, the tip electrode having an asymmetric design, wherein a first side of the tip electrode extending longitudinally from a proximal end to a distal end of the tip electrode and being adapted to contact tissue extends radially beyond an outer wall of the flexible tubing and a second side of the tip electrode generally opposite the first side and extending longitudinally from the proximal to the distal end of the tip electrode is generally even with the outer wall of the flexible tubing; and an electrode lead wire extending through the catheter body and into the ablation assembly and having a distal end connected to the tip electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification