Title:
【発明の名称】インピーダンス整合変換器
Document Type and Number:
Japanese Patent JP2003504169
Kind Code:
A
Abstract:
The present invention provides exemplary transducer elements, transducer packages and methods of making same. One exemplary transducer element (10) has first and second transducer surfaces (14, 20) and a plurality of tapered pillars (16) that comprise piezoelectric material and extend between the first and second transducer surfaces. At least one of the pillars has a first cross-sectional area at the first transducer surface that is larger than a second cross-sectional area at the second transducer surface. Hence, the transducer has a lower acoustic impedance at the second surface than at the first surface.
More Like This:
| JP6781008 | Ultrasonic probe and ultrasonic diagnostic equipment |
| JPH0475651 | CATHETER TYPE LASER IRRADIATING DEVICE |
| JP2001245885 | ULTRASONIC PROBE |
Inventors:
Mamaek, Don Es
Application Number:
JP2001510597A
Publication Date:
February 04, 2003
Filing Date:
July 19, 2000
Export Citation:
Assignee:
Boston Scientific Limited
International Classes:
A61B8/12; B06B1/06; G10K11/02; H04R17/00; (IPC1-7): A61B8/12; B06B1/06; H04R17/00
Domestic Patent References:
| JPH0730997A | 1995-01-31 | |||
| JPH0730999A | 1995-01-31 | |||
| JPH1189835A | 1999-04-06 | |||
| JPH07115231A | 1995-05-02 | |||
| JPH0910214A | 1997-01-14 | |||
| JPH0730998A | 1995-01-31 | |||
| JPH1075953A | 1998-03-24 | |||
| JPH0392141A | 1991-04-17 | |||
| JPH11113906A | 1999-04-27 | |||
| JPS57107144A | 1982-07-03 |
Attorney, Agent or Firm:
Masaki Yamakawa