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1. (WO1997017018) APERIODIC ULTRASOUND PHASED ARRAY
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017018 International Application No.: PCT/US1996/017964
Publication Date: 15.05.1997 International Filing Date: 08.11.1996
Chapter 2 Demand Filed: 09.06.1997
IPC:
A61B 17/22 (2006.01) ,A61M 37/00 (2006.01) ,A61N 7/02 (2006.01) ,B06B 1/06 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
22
Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
37
Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
7
Ultrasound therapy
02
Localised ultrasound hyperthermia
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
06
operating with piezo-electric effect or with electrostriction
Applicants:
BRIGHAM & WOMEN'S HOSPITAL [US/US]; 75 Francis Street Boston, MA 02115, US (AllExceptUS)
HUTCHINSON, Erin [US/US]; US (UsOnly)
BUCHANAN, Mark [US/US]; US (UsOnly)
HYNYNEN, Kullervo [FI/US]; US (UsOnly)
Inventors:
HUTCHINSON, Erin; US
BUCHANAN, Mark; US
HYNYNEN, Kullervo; US
Agent:
POWSNER, David, J.; Choate, Hall & Stewart Exchange Place 53 State Street Boston, MA 02109-2891, US
Priority Data:
60/006,41309.11.1995US
Title (EN) APERIODIC ULTRASOUND PHASED ARRAY
(FR) GROUPEMENT APERIODIQUE D'ELEMENTS A ULTRA-SONS COMMANDES EN PHASE
Abstract:
(EN) An apparatus (10) for providing ultrasonic energy for deposition in body tissue (24) including an array (17) of elements (18, 20) having at least two different sizes and at least one element being periodically spaced with respect to the other elements in the array. An amplifier system (12) includes amplifiers (15), and phase shifters (16) each individually controlling each of the elements producing a beam of ultrasonic energy having reduced grating lobes. Reduced grating lobe magnitude permits improved ultrasonic beam focusing and/or the use of larger element sizes.
(FR) Dispositif (10) fournissant une énergie sous forme d'ultra-sons permettant de réaliser un dépôt dans des tissus corporels (24). Le dispositif consiste en un groupement d'éléments (17) présentant au moins deux tailles différentes et au moins un élément présentant un espacement apériodique par rapport aux autres éléments du groupement. Un système amplificateur (12) comprend des amplificateurs (15) et des déphaseurs (16) commandant individuellement chacun des éléments produisant un faisceau d'énergie sous forme d'ultra-sons présentant des lobes à dispersion réduite. L'ampleur des lobes à dispersion réduite permet une meilleure focalisation du faisceau d'ultra-sons et/ou le recours à des tailles d'élément plus importantes.
Designated States: CA, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
US20030001991US20050030446