Sheath And Method Of Use
First Claim
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1. A method comprising:
- providing a sheath having first and second lumens;
deploying a catheter within the first lumen;
ablating patient tissue with the catheter; and
removing patient fluid via the second lumen while the catheter is deployed within the first lumen.
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Abstract
In an embodiment a sheath allows one to simultaneously ablate tissue, using a catheter located in the sheath, and remove fluid from a patient'"'"'s pericardial space, via the same sheath, all without withdrawing the ablation catheter from the sheath. Applying pressure (positive or negative) to fenestrations in the sheath may allow one to withdraw fluid from the space, navigate the sheath within the space, and/or adhere the sheath to tissue in the space. Other embodiments are described herein.
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Citations
20 Claims
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1. A method comprising:
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providing a sheath having first and second lumens; deploying a catheter within the first lumen; ablating patient tissue with the catheter; and removing patient fluid via the second lumen while the catheter is deployed within the first lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14)
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11. The method of claim 11 including stabilizing the sheath against additional tissue by applying the negative pressure to the first fenestration.
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15. An apparatus comprising:
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a sheath having first and second lumens; wherein the first lumen is configured to receive a catheter that ablates tissue and the second lumen is configured to remove fluid while the catheter is deployed within the first lumen. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification