Closed-loop clot lysis
First Claim
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1. A system for delivering acoustic energy to a clot, the system comprising:
- a. a focused-ultrasound phased-array transducer;
b. means for monitoring liquid content of the clot as ultrasound energy is directed at the clot; and
c. a controller configured to automatically (i) operate the transducer, (ii) analyze the monitored liquid content, and (iii) adjust transducer operation based on the monitored liquid content.
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Abstract
The present invention provides procedures and systems that use a closed-loop approach for directing ultrasound energy at a clot while monitoring blood flow and/or liquification of the clot tissue so as to allow automated and/or manual adjustments to various treatment parameters.
274 Citations
6 Claims
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1. A system for delivering acoustic energy to a clot, the system comprising:
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a. a focused-ultrasound phased-array transducer; b. means for monitoring liquid content of the clot as ultrasound energy is directed at the clot; and c. a controller configured to automatically (i) operate the transducer, (ii) analyze the monitored liquid content, and (iii) adjust transducer operation based on the monitored liquid content. - View Dependent Claims (2, 3)
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4. A method for treating a clot, the method comprising the steps of:
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a. applying, focused ultrasound energy to the clot using a focused-ultrasound phased-array transducer; b. monitoring liquid content of the clot as ultrasound energy is directed at the blood vessel; c. automatically analyzing the monitored liquid content; and d. operating the transducer including adjusting transducer operation based on the monitored liquid content. - View Dependent Claims (5, 6)
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Specification