Irrigated ablation electrode assembly and method for control of temperature
First Claim
1. An irrigated ablation electrode assembly for use with an irrigated catheter device, the irrigated ablation electrode assembly comprising:
- a proximal member having at least one passageway for a fluid with an outlet disposed at an external surface of the proximal member; and
a distal member connected with the proximal member and having an external surface, a first end, and a second end, wherein one of the first end and the second end of the distal member is configured to receive a portion of the proximal member such that the portion of the proximal member is disposed internally relative to the distal member, the distal member including an electrode;
wherein the external surface of the proximal member and the external surface of the distal member meet at an intersection;
wherein the at least one passageway of the proximal member is configured to direct a fluid flow through the outlet toward a region adjacent the intersection; and
wherein the at least one passageway and the outlet are not positioned longitudinally between the first end and the second end of the distal member.
1 Assignment
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Accused Products
Abstract
Embodiments of the present invention provide an irrigated catheter having irrigation fluid directed at target areas where coagulation is more likely to occur so as to minimize blood coagulation and the associated problems. In one embodiment, an irrigated ablation electrode assembly for use with an irrigated catheter device comprises a proximal member having at least one passageway for a fluid with an outlet disposed at an external surface of the proximal member; and a distal member connected with the proximal member and having an external surface. The distal member includes an electrode. The external surface of the proximal member and the external surface of the distal member meet at an intersection. The at least one passageway of the proximal member is configured to direct a fluid flow through the outlet toward a region adjacent the intersection.
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Citations
24 Claims
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1. An irrigated ablation electrode assembly for use with an irrigated catheter device, the irrigated ablation electrode assembly comprising:
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a proximal member having at least one passageway for a fluid with an outlet disposed at an external surface of the proximal member; and a distal member connected with the proximal member and having an external surface, a first end, and a second end, wherein one of the first end and the second end of the distal member is configured to receive a portion of the proximal member such that the portion of the proximal member is disposed internally relative to the distal member, the distal member including an electrode; wherein the external surface of the proximal member and the external surface of the distal member meet at an intersection; wherein the at least one passageway of the proximal member is configured to direct a fluid flow through the outlet toward a region adjacent the intersection; and wherein the at least one passageway and the outlet are not positioned longitudinally between the first end and the second end of the distal member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An irrigated ablation electrode assembly for use with an irrigated catheter device, the irrigated ablation electrode assembly comprising:
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a proximal member having an external surface; a distal member connected with the proximal member and having an external surface, a first end, and a second end, wherein one of the first end and the second end of the distal member is configured to receive a portion of the proximal member such that the portion of the proximal member is disposed internally relative to the distal member, the distal member including an electrode; and at least one passageway within the irrigated ablation electrode assembly having an outlet for a fluid; wherein the external surface of the proximal member and the external surface of the distal member meet at an intersection; wherein the at least one passageway is configured to direct a fluid flow through the outlet toward a region adjacent the intersection; and wherein the at least one passageway and the outlet are not positioned longitudinally between the first end and the second end of the distal member. - View Dependent Claims (22, 23)
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24. A method for irrigated ablation of tissue, the method comprising:
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flowing a fluid to an irrigated ablation electrode assembly which includes a proximal member having at least one passageway for the fluid with an outlet disposed at an external surface of the proximal member, and a distal member connected with the proximal member and having an external surface, a first end, and a second end, wherein one of the first end and the second end of the distal member is configured to receive a portion of the proximal member such that the portion of the proximal member is disposed internally relative to the distal member, the distal member including an electrode, wherein the at least one passageway and the outlet are not positioned longitudinally between the first end and the second end of the distal member, and wherein the external surface of the proximal member and the external surface of the distal member meet at an intersection; and directing the fluid flow through the at least one passageway of the proximal member through the outlet toward a region adjacent the intersection.
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Specification