Methods and devices for providing acoustic hemostasis
First Claim
1. A method for producing remote hemostasis within a patient body, the method comprising:
- identifying a site at which it is desired to promote hemostasis;
emitting therapeutic ultrasound energy from an ultrasound radiating surface; and
focusing the emitted therapeutic ultrasound energy to coagulate blood adjacent to the site.
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Accused Products
Abstract
Methods and apparatus for the remote coagulation of blood using high-intensity focused ultrasound (HIFU) are provided. A remote hemostasis method comprises identifying a site of internal bleeding and focusing therapeutic ultrasound energy on the site, the energy being focused through an intervening tissue. An apparatus for producing remote hemostasis comprises a focused therapeutic ultrasound radiating surface and a sensor for identifying a site of internal bleeding, with a registration means coupled to the radiating surface and the sensor to bring a focal target and the bleeding site into alignment. The sensor generally comprises a Doppler imaging display. Hemostasis enhancing agents may be introduced to the site for actuation by the ultrasound energy.
205 Citations
42 Claims
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1. A method for producing remote hemostasis within a patient body, the method comprising:
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identifying a site at which it is desired to promote hemostasis; emitting therapeutic ultrasound energy from an ultrasound radiating surface; and focusing the emitted therapeutic ultrasound energy to coagulate blood adjacent to the site. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for producing remote hemostasis within a patient body, the method comprising:
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identifying a site at which it is desired to promote hemostasis; targeting a therapy region adjacent to the site; generating focused therapeutic ultrasound energy; and applying the focused therapeutic ultrasound energy from a radiating surface to a target within the therapy region. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for producing remote hemostasis within a patient body, the method comprising:
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identifying a site at which it is desired to promote hemostasis; introducing an ultrasound hemostasis enhancement agent to the site; generating and emitting therapeutic ultrasound energy from a radiating surface; and focusing the emitted therapeutic ultrasound energy to activate the hemostasis agent adjacent to the site. - View Dependent Claims (21, 22, 23)
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24. An apparatus for producing remote hemostasis comprising:
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a radiating surface which applies focused therapeutic ultrasound energy to a target volume to produce remote hemostasis, the target volume being separated from the radiating surface; a sensor which identifies a site at which it is desired to induce hemostasis; and a registration mechanism coupled to the sensor and the radiating surface to align the target volume and the site. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An apparatus for producing remote hemostasis comprising:
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a pulsed ultrasound imaging transducer which images a site at which it is desired to promote hemostasis; an ultrasound radiating surface which focuses therapeutic energy at a target volume to produce remote hemostasis; and a display coupled to the imaging transducer and to the radiating surface, the display indicating the relative positions of the target volume and the site at which it is desired to promote hemostasis. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42)
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Specification