DEVICES AND METHODS FOR ACOUSTIC SHIELDING
First Claim
1. A biocompatible shield configured for selectively protecting tissue from acoustic energy comprising:
- a first layer,wherein the first layer comprises a first material with a first acoustic impedance and a first reflection coefficient of between 60-100%; and
a second layer in contact with and adjacent to the first layer,wherein the second layer comprises a second material with a second acoustic impedance,wherein the first acoustic impedance is at least ten thousand times greater than the second acoustic impedance.
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Accused Products
Abstract
Acoustic shielding system and method for protecting and shielding non-targeted regions or tissues that are not intended to be treated by ultrasonic procedures from acoustic energy using a shield. In some embodiments, the shield comprises multiple layers made of one or more materials with one or more acoustic impedances. In some embodiments a multilayered shield includes materials with relatively different acoustic impedance levels. In some embodiments, the shield includes active components such as energy diversion devices, heating, cooling, monitoring, and/or sensing. In some embodiments, the shield is configured to protect an eye, mouth, nose or ear while allowing the ultrasound to treat the surrounding tissue. One embodiment of an eye shield is configured to fit under at least one eyelid and over a portion of the eye.
128 Citations
20 Claims
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1. A biocompatible shield configured for selectively protecting tissue from acoustic energy comprising:
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a first layer, wherein the first layer comprises a first material with a first acoustic impedance and a first reflection coefficient of between 60-100%; and a second layer in contact with and adjacent to the first layer, wherein the second layer comprises a second material with a second acoustic impedance, wherein the first acoustic impedance is at least ten thousand times greater than the second acoustic impedance. - 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 eye shield configured for selectively protecting an eye from acoustic energy applied to surrounding tissue, the eye shield comprising:
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a first layer comprising a first material with a first acoustic impedance; a second layer in contact with and adjacent to the first layer, the second layer comprising a second material with a second acoustic impedance, the first acoustic impedance being at least ten times the second acoustic impedance; and a third layer comprising a third material in contact with and adjacent to the second layer, the third material having a third acoustic impedance, the third acoustic impedance being at least ten times the second acoustic impedance. - View Dependent Claims (19, 20)
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Specification