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US 2013/0158539 A1Published application
Pre-formed curved ablation catheter
AssigneeBiosense Webster (Israel) Ltd.
InventorAssaf Govari
Life of this patent
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Abstract
A medical device includes an insertion tube, having a longitudinal axis and having a distal end adapted for insertion through a body passage into a cavity within a body of a patient. An electrode is located on the distal end of the insertion tube and is configured to contact tissue in the cavity. A resilient member is contained within the distal end of the insertion tube and is configured, when unconstrained, to cause the distal end to bend away from the longitudinal axis in a curved shape and to straighten toward the longitudinal axis when subjected to a force.
Claims7
A method for medical treatment, comprising:
- inserting a sheath, having a longitudinal axis and a distal opening, through a body passage into a cavity within a body of a patient;
- inserting into the sheath a catheter having a resilient distal end that is formed so that, when unconstrained, the distal end bends away from the longitudinal axis in a curved shape, and when subjected to a force, the distal end straightens toward the longitudinal axis;
- advancing the catheter through the sheath so that the distal end of the catheter passes through the distal opening of the sheath into the cavity and assumes the curved shape;
- manipulating the catheter within the cavity so that the distal end contacts tissue in the cavity;
- and
- moving the catheter within the sheath while the distal end contacts the tissue so as to cause the distal end to trace a desired path along the tissue.
3 more elements
Dependencies are inferred from the claim text.