Multiple antenna ablation apparatus and method with multiple sensor feedback
First Claim
Patent Images
1. An ablation treatment apparatus, comprising:
- an introducer having a distal portion and a proximal portion; and
at least one antenna positioned in the introducer as the introducer is introduced through tissue and exhibiting a changing direction of travel when deployed from the introducer at a selected tissue mass, said at least one antenna being operatively coupled to a microwave energy source; and
at least one thermal sensor coupled to at least one of (i) the introducer. or (ii) at least one of the at least one antennas.
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Abstract
An ablation apparatus includes an ablation energy source producing an electromagnetic energy output. A monopolar multiple antenna device is included and has a primary antenna with a longitudinal axis, a central lumen and a distal end, and a secondary antenna with a distal end. The secondary antenna is deployed from the primary antenna central lumen in a lateral direction relative to the longitudinal axis. The primary antenna and secondary antennas are each electromagnetically coupled to the electromagnetic energy source.
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Citations
37 Claims
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1. An ablation treatment apparatus, comprising:
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an introducer having a distal portion and a proximal portion; and
at least one antenna positioned in the introducer as the introducer is introduced through tissue and exhibiting a changing direction of travel when deployed from the introducer at a selected tissue mass, said at least one antenna being operatively coupled to a microwave energy source; and
at least one thermal sensor coupled to at least one of (i) the introducer. or (ii) at least one of the at least one antennas. - View Dependent Claims (2, 3, 7, 8, 9, 11, 12, 15, 18, 19, 31, 32, 33, 34, 35, 36)
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4-6. -6. (canceled)
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10. (canceled)
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13-14. -14. (canceled)
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16-17. -17. (canceled)
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20. A method for creating an ablation volume in a selected tissue mass, comprising:
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providing an ablation device with an introducer at least one antenna with a distal end and being operatively coupled to a microwave energy source, and at least one thermal sensor coupled to at least one of (i) the introducer, or (ii) at least one of the at least one antennas;
inserting the introducer into the selected tissue mass with the at least one antenna distal end positioned in the introducer lumen;
advancing the at least one antenna distal end out of the introducer lumen and into the selected tissue mass;
delivering electromagnetic energy from the microwave energy source to the at least one antenna; and
creating an ablation volume in the selected tissue mass. - View Dependent Claims (21, 23, 24, 30, 37)
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25-29. -29. (canceled)
Specification