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1. (US20180178250) ULTRASOUND SYSTEM AND ULTRASONIC PULSE TRANSMISSION METHOD

Office : United States of America
Application Number: 15738159 Application Date: 30.06.2016
Publication Number: 20180178250 Publication Date: 28.06.2018
Publication Kind : A1
Prior PCT appl.: Application Number:PCTEP2016065440 ; Publication Number: Click to see the data
IPC:
B06B 1/02
A61B 8/00
A61N 7/00
A61B 8/08
A61B 8/06
B PERFORMING OPERATIONS; TRANSPORTING
06
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
B
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
1
Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency
02
making use of electrical energy
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
8
Diagnosis using ultrasonic, sonic or infrasonic waves
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
7
Ultrasound therapy
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
8
Diagnosis using ultrasonic, sonic or infrasonic waves
08
Detecting organic movements or changes, e.g. tumours, cysts, swellings
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
8
Diagnosis using ultrasonic, sonic or infrasonic waves
06
Measuring blood flow
CPC:
A61B 8/06
A61B 8/4494
A61B 8/483
A61B 8/488
A61N 7/00
B06B 1/0215
B06B 1/0292
B06B 2201/76
Applicants: KONINKLIJKE PHILIPS N.V.
Inventors: HOA PHAM
RUEDIGER MAUCZOK
NICO MARIS ADRIAAN DE WILD
Priority Data: 15174414.1 30.06.2015 EP
Title: (EN) ULTRASOUND SYSTEM AND ULTRASONIC PULSE TRANSMISSION METHOD
Abstract: front page image
(EN)

An ultrasound system is disclosed comprising a probe (10) including an array (110) of CMUT (capacitive micromachined ultrasound transducer) cells (100), each cell comprising a substrate (112) carrying a first electrode (122) of an electrode arrangement, the substrate being spatially separated from a flexible membrane (114) including a second electrode (120) of said electrode arrangement by a gap (118), the flexible membrane comprising a mass element (140) in a central region (17, 17′); and a voltage supply (45) coupled to said probe and adapted to, in a transmission mode of the ultrasound system, provide the respective electrode arrangements of at least some of the CMUT cells with a voltage including a bias voltage component driving the at least some of the CMUT cells into a collapsed state in which a central part of the flexible membrane contacts the substrate, said central part including the central region; and a stimulus component having a set frequency for resonating the respective flexible membranes of the at least some of the CMUT cells in said collapsed state, wherein the mass element of each of the at least some CMUT cells forces at least the central region of the flexible membrane of said cell to remain in contact with the substrate during said resonating. A pulse transmission method for such a system is also disclosed.


Also published as:
EP3317026JP2018519085CN108025331WO/2017/001636