Systems and methods for opening a tissue
First Claim
Patent Images
1. A method for opening a tissue to a target value, comprising:
- targeting a region of said tissue for opening;
selecting the target value based on a size of a molecule to pass through the tissue and a surface area of the region to be exposed to the molecule;
determining a size range of microbubbles corresponding to said target value;
generating a polydispersed microbubble distribution using acoustic emulsification;
isolating the microbubbles of the size range from the polydispersed microbubble distribution using differential centrifugation;
positioning the microbubbles of said size range in proximity to said targeted region; and
applying an ultrasound beam to said targeted region such that said tissue is opened with the assistance of said microbubbles to said target value.
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Abstract
Systems and methods for opening a tissue to a target value are disclosed herein. In an exemplary method, a region of the tissue is targeted for opening, a size range of microbubbles corresponding to the target value is determined, microbubbles of the size range are positioned in proximity to the targeted region, and an ultrasound beam is applied to the targeted region such that the tissue is opened with the assistance of the microbubbles to the target value.
169 Citations
50 Claims
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1. A method for opening a tissue to a target value, comprising:
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targeting a region of said tissue for opening; selecting the target value based on a size of a molecule to pass through the tissue and a surface area of the region to be exposed to the molecule; determining a size range of microbubbles corresponding to said target value; generating a polydispersed microbubble distribution using acoustic emulsification; isolating the microbubbles of the size range from the polydispersed microbubble distribution using differential centrifugation; positioning the microbubbles of said size range in proximity to said targeted region; and applying an ultrasound beam to said targeted region such that said tissue is opened with the assistance of said microbubbles to said 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, 22)
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23. A method for imaging the opening of a tissue to a target value, comprising:
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targeting a region of said tissue for opening; selecting the target value based on a size of a molecule to pass through the tissue and a surface area of the region to be exposed to the molecule; determining a size range of microbubbles corresponding to said target value; generating a polydispersed microbubble distribution using acoustic emulsification; isolating the microbubbles of the size range from the polydispersed microbubble distribution using differential centrifugation; positioning the microbubbles of said size range in proximity to said targeted region; applying an ultrasound beam to said targeted region such that said tissue is opened with the assistance of said microbubbles to said target value; and collecting image information for said targeted region of said opening tissue. - View Dependent Claims (24, 25)
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26. A system for opening a tissue to a target value, comprising:
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a targeting assembly for targeting a region of said tissue; a processor programmed with logic configured to; select the target value based on a size of a molecule to pass through the tissue and a surface area of the region to be exposed to the molecule; and determine a size range of microbubbles corresponding to said target value; a probe adapted to generate a polydispersed microbubble distribution using acoustic emulsification; a centrifuge adapted to isolate the microbubbles of the size range from the polydispersed microbubble distribution using differential centrifugation; and an introducer adapted to deliver a solution including the microbubbles of the size range to a location proximate to said targeted region; and a transducer, coupled to said targeting assembly, adapted to apply an ultrasound beam to said targeted region to thereby open said tissue with the assistance of said microbubbles to said target value. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A system for imaging the opening of a tissue to a target value, comprising:
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a targeting assembly for targeting a region of said tissue; a data processor programmed with logic configured to; select the target value based on size of a molecule to pass through the tissue and a surface area of the region to be exposed to the molecule; and determine a size range of microbubbles corresponding to said target value; a probe adapted to generate a polydispersed microbubble distribution using acoustic emulsification; a centrifuge adapted to isolate the microbubbles of the size range from the polydispersed microbubble distribution using differential centrifugation; an introducer adapted to deliver a solution including the microbubbles of the size range to a location proximate to said targeted region; and a transducer, coupled to said targeting assembly, adapted to apply an ultrasound beam to said targeted region to thereby open said tissue with the assistance of said microbubbles to said target value; an imaging device adapted to capture image data of said opened tissue of said targeted region; and an image processor, operatively coupled to said imaging device, adapted to process said image data to form an image therefrom. - View Dependent Claims (48, 49, 50)
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Specification