Patent · US Expired

Process for producing array-type ultrasonic probe

US4628573A · kind A · utility

9Cited by

3References

10Claims

0Family size

Assignee

Kureha Kagaku Kogyo Kabushiki Kaisha · JP

Inventors

Akira Hamada · Osaka, JP
Keiichi Ohira · Iwaki, JP
Akira Funakoshi · Atsugi, JP

Key dates

Filing date	Oct 4, 1984
Grant date	Dec 16, 1986
Priority date	—
Expiry date	Oct 4, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49799
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Array type ultrasonic probes including those of the annular array type and the linear array type are produced with a high accuracy of arrangement of unit transducer elements by first providing an integral processed plate wherein unit back electrodes are almost configurated into their final shapes but connected with each other by connecting portions so as to facilitate the handling thereof as an integral plate. The integral processed plate is bonded to a substrate and the connecting portions are removed to leave the back electrodes separately bonded to the substrate. On the back electrodes, a piezoelectric polymer film and a front electrode are applied to give an array type ultrasonic probe adapted for medical diagnosis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.