The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 1994
Filed:
Jul. 19, 1993
Ryuuichi Shinomura, Higashimatsuyama, JP;
Kageyoshi Katakura, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An ultrasonic apparatus for transmitting ultrasonic waves and receiving reflection waves from an examination subject for display is used in a blood vessel with a catheter for two-dimensional imaging and three-dimensional scanning for three-dimensional imaging. The ultrasonic apparatus includes a transducer, installed within a catheter, which transmits ultrasonic waves in a direction corresponding to a transducer drive signal frequency and receives reflection waves from an examination subject, to display a tomogram image obtained by the transducer. Also, the ultrasonic apparatus includes an ultrasonic probe having arrayed transducers in an elongated shape which transmit ultrasonic waves in a direction corresponding to a transducer drive signal frequency and receive reflection waves from an examination subject, and a device for electronic scanning and focusing in a direction of array of the transducers in the elongated shape, and electronic scanning in a direction perpendicular to that direction is conducted by changing the transducer drive signal frequency.