Suction stabilized epicardial ablation devices
First Claim
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1. A system for suction assisted ablation for creating a tissue ablation site, the system comprising:
- a tissue contact surface;
a plurality of suction ports positioned substantially linearly along the tissue contact surface and capable of drawing a portion of tissue at least partially within the suction ports upon application of suction;
a suction conduit for providing suction from a suction source to the suction ports, the suction conduit operatively connected with the suction ports;
a first elongated energy transfer element positioned along the tissue contact surface and extending adjacent a first side of each of the suction ports;
a second elongated energy transfer element positioned along the tissue contact surface and extending adjacent a second side of each of the suction ports, said first and second energy transfer elements capable of forming a linear transmural lesion in the portion of tissue drawn within the suction ports by application of energy via the first and second energy transfer elements;
a sensor sensing a parameter or characteristic relating to the tissue ablation site positioned along the tissue contact surface; and
means for automatically stopping ablation in response to a signal from the sensor.
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Abstract
A suction assisted ablation device having a support surface, suction elements disposed adjacent the support surface, at least one electrode and at least one suction conduit is provided. The device may further include fluid openings, which allow fluid to irrigate target tissue and aid in ablation. A method for ablating tissue using suction is also provided.
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Citations
71 Claims
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1. A system for suction assisted ablation for creating a tissue ablation site, the system comprising:
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a tissue contact surface;
a plurality of suction ports positioned substantially linearly along the tissue contact surface and capable of drawing a portion of tissue at least partially within the suction ports upon application of suction;
a suction conduit for providing suction from a suction source to the suction ports, the suction conduit operatively connected with the suction ports;
a first elongated energy transfer element positioned along the tissue contact surface and extending adjacent a first side of each of the suction ports;
a second elongated energy transfer element positioned along the tissue contact surface and extending adjacent a second side of each of the suction ports, said first and second energy transfer elements capable of forming a linear transmural lesion in the portion of tissue drawn within the suction ports by application of energy via the first and second energy transfer elements;
a sensor sensing a parameter or characteristic relating to the tissue ablation site positioned along the tissue contact surface; and
means for automatically stopping ablation in response to a signal from the sensor. - 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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23. A system for suction assisted ablation for creating a tissue ablation site, the system comprising:
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a tissue contact surface;
a plurality of suction ports positioned generally linearly along the tissue contact surface and capable of drawing a portion of tissue at least partially within the suction ports upon application of suction;
a suction conduit for providing suction from a suction source to the suction port, the suction conduit operatively connected with the suction ports;
a first elongated energy transfer element positioned along the tissue contact surface and extending adjacent a first side of each of the suction ports;
a second elongated energy transfer element positioned alone the tissue contact surface and extending adjacent a second side of each of the suction ports, said first and second energy transfer elements capable of forming a substantially linear transmural lesion in the portion of tissue drawn within the suction ports by application of energy via the first and second energy transfer elements;
a sensor sensing a parameter or characteristic relating to the tissue ablation site positioned along the tissue contact surface; and
means for varying suction communicated to the suction ports in response to the sensed parameter or characteristic. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A system for suction assisted ablation for creating a tissue ablation site, the system comprising:
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a tissue contact surface;
a plurality of suction ports positioned substantially linearly along the tissue contact surface and capable of drawing a portion of tissue at least partially within the suction ports upon application of suction;
a suction conduit for providing suction from a suction source to the suction port, the suction conduit operatively connected with the suction ports;
a first elongated energy transfer element positioned along the tissue contact surface and extending adjacent a first side of each of the suction ports;
a second elongated energy transfer element positioned alone the tissue contact surface and extending adjacent a second side of each of the suction ports, said first and second energy transfer elements capable of forming a substantially linear transmural lesion in the portion of tissue drawn within the suction ports by application of energy via the first and second energy transfer elements;
a sensor sensing a parameter or characteristic relating to the tissue ablation site positioned along the tissue contact surface;
an irrigation fluid conduit for providing irrigation fluid from an irrigation source to the tissue ablation site; and
means for varying irrigation fluid supplied to the irrigation conduit in response to the sensed parameter or characteristic. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. A system for suction assisted ablation for creating a tissue ablation site, the system comprising:
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a tissue contact surface;
a plurality of suction ports positioned generally linearly along the tissue contact surface and capable of drawing a portion of tissue at least partially within the suction ports upon application of suction;
a suction conduit for providing suction from a suction source to the suction ports, the suction conduit operatively connected with the suction ports;
a first elongated energy transfer element positioned along the tissue contact surface and extending adjacent a first side of each of the suction ports; and
a second elongated energy transfer element positioned along the tissue contact surface and extending adjacent a second side of each of the suction ports, said first and second energy transfer elements capable of forming a generally linear transmural lesion in the portion of tissue drawn within the suction ports by application of energy via the first and second energy transfer elements. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
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Specification