Ablation fluid manifold for ablation catheter
First Claim
1. An ablation catheter comprising:
- a tubular body having an ablation region and an ablation fluid supply lumen, a plurality of manifolds disposed along the ablation region in fluid communication with the ablation fluid supply lumen, each of the plurality of manifolds comprising;
a plurality of inlet ports in fluid communication with the ablation fluid supply lumen, an outlet port in fluid communication with each of the plurality of inlet ports, the outlet port having a larger orifice than each of the plurality of inlet ports and at least one electrode positioned in at least one outlet port.
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Accused Products
Abstract
An ablation catheter employing one or more manifold arrangements to convey a conductive fluid medium to a target tissue. The manifold includes at least one inlet port in fluid communication with a fluid supply lumen running along at least a portion of the catheter. The inlet port or ports are in fluid communication with a larger outlet port. The outlet ports provide an outlet for the fluid to flow out of the catheter and against the target tissue. As such, the combination of at least the inlet port with the outlet port provides a flow path for fluid within the fluid lumen to flow through the manifold and to outside of the catheter. An electrode is arranged in the flow path of fluid within or adjacent the manifolds. As such, fluid may be energized and conduct ablation energy to the target tissue to ablate the tissue.
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Citations
23 Claims
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1. An ablation catheter comprising:
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a tubular body having an ablation region and an ablation fluid supply lumen, a plurality of manifolds disposed along the ablation region in fluid communication with the ablation fluid supply lumen, each of the plurality of manifolds comprising;
a plurality of inlet ports in fluid communication with the ablation fluid supply lumen, an outlet port in fluid communication with each of the plurality of inlet ports, the outlet port having a larger orifice than each of the plurality of inlet ports and at least one electrode positioned in at least one outlet port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An ablation catheter comprising:
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a tubular body having a tissue contact surface and an ablation fluid supply lumen, a coiled spring within the ablation fluid supply lumen, a shaping element contained within a shaping element lumen, at least one manifold defining at least one ablation fluid flow path out of the ablation fluid supply lumen, the at least one manifold comprising;
at least one inlet port in fluid communication with the ablation fluid supply lumen at least one outlet port in fluid communication with the at least one inlet port, the at least one outlet port having a larger orifice than the at least one inlet port; and
an electrode positioned in the at least one ablation fluid flow path. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. An ablation catheter comprising:
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a tubular body having an ablation region and an ablation fluid supply lumen, a plurality of manifolds disposed along the ablation region in fluid communication with the ablation fluid supply lumen, each of the plurality of manifolds comprising;
a plurality of inlet ports in fluid communication with the ablation fluid supply lumen;
an outlet port in fluid communication with each of the plurality of inlet ports, the outlet port having a larger orifice than each of the plurality of inlet ports and at least one electrode positioned in at least one outlet port, wherein the plurality of manifolds evenly distribute an ablation fluid along the ablation region.
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21. An ablation catheter comprising:
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a tubular body defining a partial loop at its distal end;
a lumen operably connected with the tubular body; and
manifolding means for conveying fluid from within the lumen to without the tubular body. - View Dependent Claims (22, 23)
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Specification