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1. WO2019212813 - DUAL FREQUENCY ULTRASOUND TRANSDUCER

Publication Number WO/2019/212813
Publication Date 07.11.2019
International Application No. PCT/US2019/028832
International Filing Date 24.04.2019
IPC
G01N 29/22 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
22Details
G01N 29/24 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
22Details
24Probes
CPC
A61B 8/4494
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
44Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
4483characterised by features of the ultrasound transducer
4494characterised by the arrangement of the transducer elements
A61B 8/481
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
48Diagnostic techniques
481involving the use of contrast agent, e.g. microbubbles introduced into the bloodstream
B06B 1/0622
BPERFORMING OPERATIONS; TRANSPORTING
06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, ; e.g.; FOR PERFORMING MECHANICAL WORK IN GENERAL
1Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
02making use of electrical energy
06operating with piezo-electric effect or with electrostriction
0607using multiple elements
0622on one surface
B06B 2201/76
BPERFORMING OPERATIONS; TRANSPORTING
06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, ; e.g.; FOR PERFORMING MECHANICAL WORK IN GENERAL
2201Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
70Specific application
76Medical, dental
G01S 15/8915
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
8909using a static transducer configuration
8915using a transducer array
G01S 15/8952
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
895characterised by the transmitted frequency spectrum
8952using discrete, multiple frequencies
Applicants
  • FUJIFILM SONOSITE, INC. [US]/[US]
Inventors
  • PANG, Guofeng
  • IVANYTSKYY, Oleg
  • AMINI, Hossein
  • KOLAJA, Robert
Agents
  • MAIER, Robert L.
  • TEMPESTA, Jennifer
  • RITTER, Michael
Priority Data
16/051,06031.07.2018US
62/666,51903.05.2018US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DUAL FREQUENCY ULTRASOUND TRANSDUCER
(FR) TRANSDUCTEUR À ULTRASONS À DOUBLE FRÉQUENCE
Abstract
(EN) A dual frequency ultrasound transducer includes a high frequency (HF) transducer and a low frequency (LF) transducer that is positioned behind the high frequency transducer. An intermediate layer is positioned between the low frequency transducer and the high frequency transducer to absorb high frequency ultrasound signals. An alignment feature on the low frequency transducer is positioned with respect to a fiducial that is marked at a known position with respect to high frequency transducer elements of the HF transducer to align low frequency transducer elements of the LF transducer with the HF transducer elements.
(FR) L'invention concerne un transducteur à ultrasons à double fréquence qui inclut un transducteur à haute fréquence (HF) et un transducteur à basse fréquence (BF) positionné derrière le transducteur à haute fréquence. Une couche intermédiaire est positionnée entre le transducteur à basse fréquence et le transducteur à haute fréquence pour absorber les signaux ultrasonores à haute fréquence. Une caractéristique d'alignement sur le transducteur à basse fréquence est positionnée par rapport à un repère qui est marqué à une position connue par rapport à des éléments de transducteur à haute fréquence du transducteur HF pour aligner des éléments de transducteur à basse fréquence du transducteur BF avec les éléments de transducteur HF.
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