Ablation probe with fluid-based acoustic coupling for ultrasonic tissue imaging and treatment
First Claim
1. An ablation probe for treating and imaging body tissue, the ablation probe comprising:
- an elongate probe body having a proximal section and a distal section;
an ablation electrode tip coupled to the distal section of the elongate probe body, the ablation electrode tip configured for delivering ablation energy to body tissue;
a plurality of acoustic openings disposed through the ablation electrode tip;
a plurality of ultrasonic imaging sensors disposed within an interior lumen of the ablation electrode tip;
an acoustically transparent member disposed between the ultrasonic imaging sensors and the acoustic openings, the acoustically transparent member comprising a tubular shell that circumferentially surrounds at least one of the plurality of ultrasonic imaging sensors; and
a fluid channel interposed between the ultrasonic imaging sensors and the acoustically transparent member.
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Accused Products
Abstract
Devices and systems for ultrasonically imaging tissue and performing ablation therapy are disclosed. An ablation probe for treating and imaging body tissue includes an ablation electrode tip with a number of acoustic openings and a plurality of ultrasonic imaging sensors disposed within an interior lumen of the tip. The ultrasonic imaging sensors are supported within the interior lumen via an insert equipped with a number of recesses that receive the ultrasonic imaging sensors. An acoustically transparent shell disposed between the ultrasonic imaging sensors and the acoustic openings forms a fluid channel in the acoustic pathway of the sensors. During an ablation procedure, cooling fluid from an external fluid source is delivered through the fluid channel, providing an acoustic coupling effect between the ultrasonic imaging sensors and the surrounding body tissue.
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Citations
20 Claims
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1. An ablation probe for treating and imaging body tissue, the ablation probe comprising:
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an elongate probe body having a proximal section and a distal section; an ablation electrode tip coupled to the distal section of the elongate probe body, the ablation electrode tip configured for delivering ablation energy to body tissue; a plurality of acoustic openings disposed through the ablation electrode tip; a plurality of ultrasonic imaging sensors disposed within an interior lumen of the ablation electrode tip; an acoustically transparent member disposed between the ultrasonic imaging sensors and the acoustic openings, the acoustically transparent member comprising a tubular shell that circumferentially surrounds at least one of the plurality of ultrasonic imaging sensors; and a fluid channel interposed between the ultrasonic imaging sensors and the acoustically transparent member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An ablation probe for treating and imaging body tissue, the ablation probe comprising:
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an elongate probe body having a proximal section and a distal section; an ablation electrode tip coupled to the distal section of the elongate probe body, the ablation electrode tip configured for delivering ablation energy to body tissue; a plurality of acoustic openings disposed through the ablation electrode tip; a plurality of ultrasonic imaging sensors disposed within an interior lumen of the ablation electrode tip, the plurality of ultrasonic imaging sensors arrayed around a longitudinal axis of the ablation electrode tip to respectively face a plurality of different lateral directions with respect to the longitudinal axis; an acoustically transparent member disposed between the ultrasonic imaging sensors and the acoustic openings; and a fluid channel interposed between the ultrasonic imaging sensors and the acoustically transparent member.
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19. An ablation probe for treating and imaging body tissue, the ablation probe comprising:
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an elongate probe body having a proximal section and a distal section; an ablation electrode tip coupled to the distal section of the elongate probe body, the ablation electrode tip configured for delivering ablation energy to body tissue; a plurality of acoustic openings disposed through the ablation electrode tip; a plurality of ultrasonic imaging sensors disposed within an interior lumen of the ablation electrode tip; an acoustically transparent member disposed between the ultrasonic imaging sensors and the acoustic openings; an insert within the interior lumen of the ablation electrode tip, the insert comprising a cylindrically-shaped insert body including a plurality of recesses that respectively receive the plurality of ultrasonic imaging sensors; and a fluid channel interposed between the ultrasonic imaging sensors and the acoustically transparent member. - View Dependent Claims (20)
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Specification