Ablation catheter
First Claim
Patent Images
1. An ablation catheter for performing a medical procedure on a patient comprising:
- an elongated, flexible, tubular body member having a proximal end, a distal end and a lumen extending therebetween;
a first control shaft coaxially disposed and slidingly received within the lumen of the tubular body member; and
a flexible carrier assembly retractable within the tubular body member including at least two discrete ablation elements configured to deliver energy to tissue;
wherein retraction of the first control shaft causes the at least two discrete ablation elements to transform from a near linear geometry to a partial helical geometry; and
a second control shaft slidingly received within the tubular body member, wherein a proximal end of the carrier assembly is attached to the second control shaft, and a distal end of the carrier assembly is attached to the first control shaft.
4 Assignments
0 Petitions
Accused Products
Abstract
Devices, systems and methods are disclosed for the mapping of electrical signals and the ablation of tissue. Embodiments include an ablation catheter that has an array of ablation elements attached to a deployable carrier assembly. The carrier assembly can be transformed from a compact, linear configuration to a helical configuration, such as to map and ablate pulmonary vein ostia.
-
Citations
67 Claims
-
1. An ablation catheter for performing a medical procedure on a patient comprising:
-
an elongated, flexible, tubular body member having a proximal end, a distal end and a lumen extending therebetween; a first control shaft coaxially disposed and slidingly received within the lumen of the tubular body member; and a flexible carrier assembly retractable within the tubular body member including at least two discrete ablation elements configured to deliver energy to tissue; wherein retraction of the first control shaft causes the at least two discrete ablation elements to transform from a near linear geometry to a partial helical geometry; and a second control shaft slidingly received within the tubular body member, wherein a proximal end of the carrier assembly is attached to the second control shaft, and a distal end of the carrier assembly is attached to the first control shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
-
-
67. An ablation catheter comprising:
-
an elongated, flexible, tubular body member having a proximal end, a distal end and a lumen extending therebetween; a first control shaft coaxially disposed and slidingly received within the lumen of the tubular body member; and a flexible carrier assembly retractable within the tubular body member including at least two discrete ablation elements configured to deliver energy to tissue, wherein the carrier assembly comprises a single carrier arm including a proximal end and a distal end, wherein retraction of the first control shaft causes the at least two discrete ablation elements to transform from a near linear geometry to a partial helical geometry, and wherein the carrier arm is configured such that the same can be fully retracted within the tubular body member; and a second control shaft slidingly received within the tubular body member, wherein the proximal end of the carrier arm is attached to the second control shaft and the distal end of the carrier arm is attached to the first control shaft.
-
Specification