Catheter positioning system
First Claim
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1. A positioning system for guiding a catheter to a location where a pulmonary vein extends from an atrium, comprising:
- a transeptal sheath having a distal opening, the transeptal sheath being adapted for traversing an atrial septum;
a first guidewire adapted for slidable advancement through the distal opening in the transeptal sheath, the first guidewire having a deflectable distal portion for steering the first guidewire to a first pulmonary vein; and
a catheter adapted for advancement over the first guidewire and into the atrium the catheter being independently advancable through the sheath distal opening.
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Abstract
The present invention is a system adapted to position an ablation catheter at a location where a pulmonary vein extends from an atrium. The system includes a deflectable guidewire and a sheath. The ablation catheter is used with the positioning system, wherein the deflectable guidewire and the sheath cooperate so as to facilitate positioning of the catheter at the location.
325 Citations
22 Claims
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1. A positioning system for guiding a catheter to a location where a pulmonary vein extends from an atrium, comprising:
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a transeptal sheath having a distal opening, the transeptal sheath being adapted for traversing an atrial septum;
a first guidewire adapted for slidable advancement through the distal opening in the transeptal sheath, the first guidewire having a deflectable distal portion for steering the first guidewire to a first pulmonary vein; and
a catheter adapted for advancement over the first guidewire and into the atrium the catheter being independently advancable through the sheath distal opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification