Title:
ULTRASONIC PROBE
Document Type and Number:
WIPO Patent Application WO/2008/026332
Kind Code:
A1
Abstract:
In a short axis scanning type ultrasonic probe, a flat piezoelectric element
group (2) is formed by arranging a plurality of stripe piezoelectric elements
(2a) in the long axis direction which becomes the width direction of the piezoelectric
elements (2a), and the piezoelectric element group (2) is contained in an airtight
container (3) filled with a liquid (L) functioning as an ultrasonic medium, and
the probe performs mechanical scanning to the piezoelectric element group (2)
in the short axis direction which becomes the length direction of the piezoelectric
elements (2a). Since the mechanical scanning is performed by moving the piezoelectric
element group (2) linearly in the short axis direction, the transmission/reception
wave front of ultrasonic wave touches a protrusion of a living body (e.g. breast)
easily and azimuth resolution is improved in the short axis mechanical scanning
probe.
Inventors:
HASEGAWA YASUNOBU (JP)
TAKI KUNIHISA (JP)
TAKI KUNIHISA (JP)
Application Number:
PCT/JP2007/053332
Publication Date:
March 06, 2008
Filing Date:
February 16, 2007
Export Citation:
Assignee:
NIHON DEMPA KOGYO CO (JP)
HASEGAWA YASUNOBU (JP)
TAKI KUNIHISA (JP)
HASEGAWA YASUNOBU (JP)
TAKI KUNIHISA (JP)
International Classes:
A61B8/00; G01N29/24; H04R17/00
Domestic Patent References:
| WO2002039901A1 | 2002-05-23 |
Foreign References:
| JP2001161689A | 2001-06-19 | |||
| JPS6374108U | 1988-05-18 | |||
| JPS54161773A | 1979-12-21 | |||
| JPH05269132A | 1993-10-19 |
Attorney, Agent or Firm:
OKAWA, Akira (8-1 Nihonbashi Kayabacho 2-chom, Chuo-ku Tokyo 25, JP)
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