Title:
ULTRASONIC PROBE
Document Type and Number:
WIPO Patent Application WO/2003/088705
Kind Code:
A1
Abstract:
An ultrasonic probe comprising an ultrasonic element for transmission and receiving of ultrasonic waves, a sound window provided so as to enclose the ultrasonic element and an ultrasonic wave propagation liquid charged in the sound window, characterized in that a barrier layer capable of inhibiting the permeation of liquids and gases is provided on a wall surface of the sound window. As the barrier layer, use can be made, for example, of one including at least one of a polyparaxylylene layer and a metal layer.
Inventors:
HASEGAWA SHIGEYOSHI (JP)
IRIOKA KAZUYOSHI (JP)
KOIZUMI JUN (JP)
HIRAYAMA MICHIYO (JP)
IRIOKA KAZUYOSHI (JP)
KOIZUMI JUN (JP)
HIRAYAMA MICHIYO (JP)
Application Number:
PCT/JP2003/004740
Publication Date:
October 23, 2003
Filing Date:
April 15, 2003
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
HASEGAWA SHIGEYOSHI (JP)
IRIOKA KAZUYOSHI (JP)
KOIZUMI JUN (JP)
HIRAYAMA MICHIYO (JP)
HASEGAWA SHIGEYOSHI (JP)
IRIOKA KAZUYOSHI (JP)
KOIZUMI JUN (JP)
HIRAYAMA MICHIYO (JP)
International Classes:
G01N29/24; A61B8/00; A61B8/12; H04R1/44; (IPC1-7): H04R1/02; A61B8/00; H04R17/00
Foreign References:
| JPH06209937A | 1994-08-02 | |||
| JPH03131278A | 1991-06-04 | |||
| JPH02189139A | 1990-07-25 | |||
| JPH10262974A | 1998-10-06 | |||
| JPH03205040A | 1991-09-06 | |||
| DE19742294A1 | 1999-04-01 | |||
| US5550790A | 1996-08-27 | |||
| US5762066A | 1998-06-09 | |||
| US4517985A | 1985-05-21 |
Other References:
See also references of EP 1501331A4
Attorney, Agent or Firm:
IKEUCHI SATO & PARTNER PATENT ATTORNEYS (OAP TOWER 8-30, Tenmabashi 1-chome, Kita-k, Osaka-shi Osaka, JP)
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