Systems and methods for opening of a tissue barrier
First Claim
1. A method for opening a tissue to a target value using microbubbles, comprising:
- targeting a region of the tissue to open;
determining at least one acoustic parameter corresponding to the target value, the at least one acoustic parameter is selected to control one or more acoustic cavitation events to open the tissue to the target value to thereby allow passage of molecules and/or agents; and
applying an ultrasound beam at the at least one acoustic parameter to the targeted region such that the tissue is opened with the microbubbles to the target value.
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Abstract
Systems and methods for opening a tissue to a target value using microbubbles are disclosed herein. In an embodiment of a method for opening a tissue to a target value using microbubbles, a region of the tissue is targeted for opening, an acoustic parameter corresponding to the target value is determined, and an ultrasound beam is applied to the target region at the acoustic parameter such that the tissue at the target region is opened to the target value with the microbubbles. The acoustic parameter can be selected to control an acoustic cavitation event and, in some embodiments, controlling an acoustic cavitation event can include controlling a location, number and/or magnitude of acoustic cavitation events.
190 Citations
30 Claims
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1. A method for opening a tissue to a target value using microbubbles, comprising:
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targeting a region of the tissue to open; determining at least one acoustic parameter corresponding to the target value, the at least one acoustic parameter is selected to control one or more acoustic cavitation events to open the tissue to the target value to thereby allow passage of molecules and/or agents; and applying an ultrasound beam at the at least one acoustic parameter to the targeted region such that the tissue is opened with the microbubbles to the target value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for opening a tissue to a target value using a solution of microbubbles having size range corresponding to the target value, comprising:
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a targeting assembly for targeting a region of the tissue; an introducer for delivering the solution to a location proximate to the targeted region; and a transducer, coupled to the targeting assembly, for applying an ultrasound beam to the targeted region at least one acoustic parameter corresponding to the target value thereby opening the tissue with the microbubbles to the target value, wherein the at least one acoustic parameter is selected to control one or more acoustic cavitation events to open the tissue to the target value to thereby allow passage of molecules and/or agents. - View Dependent Claims (23, 24, 25)
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26. A method for delivering a drug across a tissue, comprising opening a tissue to a target value using microbubbles, comprising:
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targeting a region of the tissue to open; determining at least one acoustic parameter corresponding to the target value, wherein the at least one acoustic parameter is selected to control one or more acoustic cavitation events to open the tissue to the target value to thereby allow passage of molecules and/or agents; applying an ultrasound beam at the at least one acoustic parameter to the targeted region such that the tissue is opened with the microbubbles to the target value; and injecting the drug into the tissue in proximity to the opening. - View Dependent Claims (27)
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28. A method for opening a tissue for a target duration of time using microbubbles, comprising:
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targeting a region of the tissue to open; selecting microbubbles having at least one microbubble parameter corresponding to the target duration of time, wherein the at least one microbubble parameter is selected to control one or more acoustic cavitation events to open the tissue for the target duration of time to thereby allow passage of molecules and/or agents; and applying an ultrasound beam to the targeted region such that the tissue is opened with the microbubbles for the target duration of time. - View Dependent Claims (29, 30)
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Specification