Map and ablate open irrigated hybrid catheter
First Claim
1. An open-irrigated catheter system for performing mapping and ablation functions, comprising:
- a tip section having an exterior wall that defines an open interior region within the tip section, wherein the exterior wall includes a plurality of mapping electrode openings, wherein at least one of the mapping electrode openings is spaced apart from a distal end of the exterior wall of the tip section, wherein the exterior wall includes at least one irrigation port in fluid communication with the open interior, and wherein the exterior wall is conductive for delivering radio frequency (RF) energy for an RF ablation procedure;
a distal insert positioned within the tip section separating the open interior region into a distal fluid reservoir and a proximal fluid reservoir;
a fluid path extending through the open interior region and in fluid communication with the distal fluid reservoir, the proximal fluid reservoir, and at least one irrigation port;
a plurality of mapping electrodes seated in the distal insert and aligned with the mapping electrode openings in the tip section;
wherein the distal insert has a peripheral surface with openings therein sized to receive at least one insulating element, wherein the distal insert includes at least one insulating element electrically insulating the mapping electrodes from the fluid path, the at least one insulating element including at least one insulated channel configured to electrically insulated wires extending from the plurality of mapping electrodes from the fluid path.
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Abstract
An embodiment of an open-irrigated catheter system comprises a tip section, a distal insert, and mapping electrodes. The tip section has an exterior wall that defines an open interior region within the tip section. The exterior wall includes mapping electrode openings and irrigation ports. The exterior wall is conductive for delivering radio frequency (RF) energy for an RF ablation procedure. The irrigation ports are in fluid communication with the open interior region to allow fluid to flow from the open interior region through the irrigation ports. The distal insert is positioned within the tip section to separate the open region into a distal fluid reservoir and a proximal fluid reservoir. The mapping electrodes are positioned in the mapping electrode openings in the tip section.
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Citations
20 Claims
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1. An open-irrigated catheter system for performing mapping and ablation functions, comprising:
- a tip section having an exterior wall that defines an open interior region within the tip section, wherein the exterior wall includes a plurality of mapping electrode openings, wherein at least one of the mapping electrode openings is spaced apart from a distal end of the exterior wall of the tip section, wherein the exterior wall includes at least one irrigation port in fluid communication with the open interior, and wherein the exterior wall is conductive for delivering radio frequency (RF) energy for an RF ablation procedure;
a distal insert positioned within the tip section separating the open interior region into a distal fluid reservoir and a proximal fluid reservoir;
a fluid path extending through the open interior region and in fluid communication with the distal fluid reservoir, the proximal fluid reservoir, and at least one irrigation port;
a plurality of mapping electrodes seated in the distal insert and aligned with the mapping electrode openings in the tip section;
wherein the distal insert has a peripheral surface with openings therein sized to receive at least one insulating element, wherein the distal insert includes at least one insulating element electrically insulating the mapping electrodes from the fluid path, the at least one insulating element including at least one insulated channel configured to electrically insulated wires extending from the plurality of mapping electrodes from the fluid path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a tip section having an exterior wall that defines an open interior region within the tip section, wherein the exterior wall includes a plurality of mapping electrode openings, wherein at least one of the mapping electrode openings is spaced apart from a distal end of the exterior wall of the tip section, wherein the exterior wall includes at least one irrigation port in fluid communication with the open interior, and wherein the exterior wall is conductive for delivering radio frequency (RF) energy for an RF ablation procedure;
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16. An open-irrigated catheter system for performing mapping and ablation functions, comprising:
- a tip section having an exterior wall that defines an open interior region within the tip section, wherein the exterior wall includes a plurality of mapping electrode openings in fluid communication with the open interior, wherein at least one of the mapping electrode openings is spaced apart from a distal end of the exterior wall of the tip section, wherein the exterior wall includes at least one irrigation port in fluid communication with the open interior region and wherein the exterior wall is conductive for delivering radio frequency (RF) energy for an RF ablation procedure;
a distal insert within the tip section separating the open interior region into a distal fluid reservoir and a proximal fluid reservoir;
a fluid path extending through the tip section and in fluid communication with the at least one irrigation port;
a plurality of mapping electrodes seated in the distal insert and in alignment with the mapping electrode openings in the tip section, wherein each mapping electrode has a peripheral surface extending transverse to a longitudinal axis of the tip section, an inner surface facing the interior of the tip section, and an outer surface facing laterally away from the tip section;
wherein the distal insert includes at least one insulating element electrically insulating the mapping electrodes from the fluid path, wherein each insulating element cover the peripheral surface and the inner surface of its corresponding mapping electrode, wherein the at least one insulating element includes at least on insulated channel configured to electrically insulate wires extending from the plurality of mapping electrodes from the fluid path. - View Dependent Claims (17, 18)
- a tip section having an exterior wall that defines an open interior region within the tip section, wherein the exterior wall includes a plurality of mapping electrode openings in fluid communication with the open interior, wherein at least one of the mapping electrode openings is spaced apart from a distal end of the exterior wall of the tip section, wherein the exterior wall includes at least one irrigation port in fluid communication with the open interior region and wherein the exterior wall is conductive for delivering radio frequency (RF) energy for an RF ablation procedure;
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19. An open-irrigated catheter system for performing mapping and ablation functions, comprising:
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a tip section having an exterior wall that defines an open interior region within the tip section, wherein the exterior wall includes at least three mapping electrode openings and at least one irrigation port in fluid communication with the open interior region, wherein the exterior wall is conductive for delivering radio frequency (RF) energy for an RF ablation procedure; a distal insert positioned within the tip section and separating the open interior region into a distal fluid reservoir and a proximal fluid reservoir, the distal insert defining a fluid conduit extending from the distal fluid reservoir to the proximal fluid reservoir, the distal insert having a peripheral surface with openings therein sized to receive the insulating elements, wherein the insulating elements electrically insulate the mapping electrodes from the distal insert, wherein at least one of the irrigation ports is in fluid communication with the distal fluid reservoir; at least three mapping electrodes seated in the distal insert and aligned with the at least three mapping electrode openings; at least three insulating elements surrounding the at least three mapping electrodes; at least one insulated channel configured to electrically insulated wires extending from the at least three mapping electrodes from fluid within the open interior region. - View Dependent Claims (20)
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Specification