Methods for producing ultrasonic waveguides having improved amplification
First Claim
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1. A method for manufacturing an ultrasonic waveguide, the method comprising:
- filling an ultrasonic waveguide preform with a first material and a second material, wherein the first material has a higher acoustic impedance as compared to the second material; and
hot isostatic pressing the ultrasonic waveguide preform to consolidate the first material and the second material to form a hot isostatically pressed component body.
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Abstract
Methods for manufacturing ultrasonic waveguides having improved velocity gain are disclosed. Additionally, methods for manufacturing ultrasonic medical devices including the ultrasonic waveguides are disclosed. Specifically, the ultrasonic waveguides comprises a first material having a higher acoustic impedance and a second material having a lower acoustic impedance.
366 Citations
54 Claims
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1. A method for manufacturing an ultrasonic waveguide, the method comprising:
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filling an ultrasonic waveguide preform with a first material and a second material, wherein the first material has a higher acoustic impedance as compared to the second material; and
hot isostatic pressing the ultrasonic waveguide preform to consolidate the first material and the second material to form a hot isostatically pressed component body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for manufacturing an ultrasonic medical device comprising a one-half wave resonant transducer coupled with a one-half wave ultrasonic waveguide, the method comprising:
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(a) producing a one-half wave ultrasonic waveguide comprising a hot isostatically pressed component body, the one-half wave ultrasonic waveguide being produced by;
filling an ultrasonic waveguide preform with a one-quarter wave first material and a one-quarter wave second material, wherein the one-quarter wave first material has a higher acoustic impedance as compared to the one-quarter wave second material; and
hot isostatic pressing the ultrasonic waveguide preform to consolidate the one-quarter wave first material and the one-quarter wave second material; and
(b) coupling the one-half wave ultrasonic waveguide to the one-half wave resonant transducer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for manufacturing an ultrasonic waveguide, the method comprising:
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filling an ultrasonic waveguide preform with a first material having an acoustic impedance of 40×
105 (gm/cm2/sec) or more and a second material having an acoustic impedance of less than 40×
105 (gm/cm2/sec); and
hot isostatic pressing the ultrasonic waveguide preform to consolidate the first material and the second material to form a hot isostatically pressed component body. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method for manufacturing an ultrasonic medical device comprising a one-half wave resonant transducer coupled with a one-half wave ultrasonic waveguide, the method comprising:
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(a) producing a one-half wave ultrasonic waveguide comprising a hot isostatically pressed component body, the one-half wave ultrasonic waveguide being produced by;
filling an ultrasonic waveguide preform with a one-quarter wave first material having an acoustic impedance of 40×
105 (gm/cm2/sec) or more and a one-quarter wave second material having an acoustic impedance of less than 40×
105 (gm/cm2/sec); and
hot isostatic pressing the ultrasonic waveguide preform to consolidate the one-quarter wave first material and the one-quarter wave second material; and
(b) coupling the one-half wave ultrasonic waveguide to the one-half wave resonant transducer. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification