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. 05, 1991
Filed:
Oct. 19, 1989
Yasutsugu Seo, Ootawara, JP;
Motoaki Sugawara, Higashimine-machi, Oota-ku, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Other;
Abstract
An input device for specifying a first measuring point near an orifice, for example, at the valve port position of the heart on a color Doppler image and a second measuring point on the centerline of an issuing fluid is connected to a blood flow imaging device which is a color Doppler tomograph constituted by combining a sector electronic scanning type ultrasonic diagnostic device and an Doppler system to derive blood flow information and tomographic image (B mode image) information by using a single ultrasonic probe. The blood flow imaging device derives Doppler shift frequencies at the first and second measuring points and supplies the same to a flow-rate calculating circuit. The flow-rate calculating circuit derives flow velocities of the blood at the first and second measuring points and a distance between the first and second measuring points and calculates the flow-rate based on the derived flow velocities and distance. The blood flow information and tomographic image obtained by the blood flow imaging device and the calculating result of the flow-rate calculating circuit are supplied to a display control circuit via a CPU bus and displayed on an display unit under the control of the display control circuit.