ULTRASOUND APPARATUS WITH TREATMENT LENS
First Claim
Patent Images
1. An ultrasound apparatus comprising:
- an ultrasound transducer having a geometric focus Ftrans, said transducer producing ultrasound waves; and
an acoustic lens assembly including a focal layer acoustically coupled to the ultrasound transducer such that said ultrasound waves are directed through the focal layer, said focal layer including at least two minor lenses, each said minor lens having a geometric focus Fminor, each said minor lens yielding a discrete treatment region, such that the focal layer includes a plurality of discrete treatment regions.
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Abstract
An ultrasound apparatus comprising an ultrasound transducer having a geometric focus; an acoustic lens assembly acoustically coupled to the ultrasound transducer; wherein the acoustic lens assembly includes a focal layer that serves to increase relative acoustic pressure in a treatment region proximal to the transducer'"'"'s geometric focus.
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Citations
60 Claims
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1. An ultrasound apparatus comprising:
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an ultrasound transducer having a geometric focus Ftrans, said transducer producing ultrasound waves; and an acoustic lens assembly including a focal layer acoustically coupled to the ultrasound transducer such that said ultrasound waves are directed through the focal layer, said focal layer including at least two minor lenses, each said minor lens having a geometric focus Fminor, each said minor lens yielding a discrete treatment region, such that the focal layer includes a plurality of discrete treatment regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An ultrasound apparatus comprising:
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an ultrasound transducer having a geometric focus Ftrans; and a diverging acoustic lens assembly having a focal layer, said diverging lens assembly acoustically coupled to the ultrasound transducer, said focal layer including at least two minor lenses, each said minor lens having a geometric focus Fminor, each said minor lens yielding a discrete treatment region such that the focal layer includes plural discrete treatment regions, said focal layer having a geometric focus Flens where Flens<
0, and 0<
Fminor<
Ftrans, wherein the effective geometric focus of the transducer with the diverging acoustic lens is Feffective, and wherein Feffective<
0. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An ultrasound apparatus comprising:
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a focused ultrasound transducer having a geometric focus Ftrans; and an acoustic lens assembly having a focal layer, said lens assembly acoustically coupled to the ultrasound transducer, said focal layer including at least two minor lenses, each said minor lens having a geometric focus Fminor, each said minor lens yielding a discrete treatment region, such that the focal layer includes plural discrete treatment regions, said focal layer having a geometric focus Flens where 0<
Fminor<
Ftrans, and the effective geometric focus of the transducer with the diverging acoustic lens is Feffective where Feffective<
0. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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32. An ultrasound apparatus comprising:
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a focused ultrasound transducer having a geometric focus Ftrans; and a diverging acoustic lens assembly having a focal layer, said diverging lens assembly acoustically coupled to the ultrasound transducer, said focal layer including at least two minor lenses, each said minor lens having a geometric focus Fminor, each said minor lens yielding a discrete treatment region, such that the focal layer includes plural discrete treatment regions, said focal layer having a geometric focus Flens<
0, where 0<
Fminor<
Ftrans, wherein the effective geometric focus of the transducer with the diverging acoustic lens is Feffective, and wherein Feffective<
0. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. An ultrasound apparatus comprising:
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an ultrasound transducer having a geometric focus Ftrans, said transducer producing ultrasound waves; and an acoustic lens assembly including a focal layer acoustically coupled to the ultrasound transducer such that said ultrasound waves are directed through the focal layer, said acoustic lens assembly defining a receptacle for receiving tissue to be treated, said receptacle bounded on top and encircled by downwardly depending sidewalls, said transducer directing ultrasound into the receptacle. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60)
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Specification