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Title:
ULTRASONIC DIAGNOSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/156081
Kind Code:
A1
Abstract:
The purpose of the invention is to find each component of a blood flow velocity using a simple process. In a secondary beam method, scanning is performed using Doppler measurement ultrasound beams (42) as primary beams, and Doppler measurement components are measured on the basis of the ultrasound waves received from the direction of each Doppler measurement ultrasound beam. Then, ultrasound waves forming secondary beams (58) at a direction that intersects the direction of the Doppler measurement ultrasound beams are sent and received, and the Doppler effect for the secondary beam direction component at the point of intersection of the Doppler measurement ultrasound beam (42) with the secondary beams (58) is measured. Furthermore, using the intersection point as the position for starting integration, an integration calculation based on the law of conservation of mass is performed along the route that intersects with the Doppler measurement ultrasound beams (42), and the component in the direction of the intersection route is found. The initial value for integration is the component in the direction of the intersection route of the integration start point (PA), and is found on the basis of the Doppler measurement component and the secondary beam direction component at the integration start point.

Inventors:
SEKI YOSHINORI (JP)
Application Number:
JP2015/057347
Publication Date:
October 15, 2015
Filing Date:
March 12, 2015
Export Citation:
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Assignee:
HITACHI ALOKA MEDICAL LTD (JP)
International Classes:
A61B8/06; A61B8/14
Foreign References:
JP2013192643A2013-09-30
JP2013165922A2013-08-29
JP2001258887A2001-09-25
JP2002017726A2002-01-22
JPS56119237A1981-09-18
Other References:
KAGEYOSHI KATAKURA ET AL.: "Method for ultrasonic vector velocity measurement", JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN, vol. 52, no. 1, 25 December 1995 (1995-12-25), pages 10 - 18, XP008184782
See also references of EP 3130290A4
Attorney, Agent or Firm:
YKI Patent Attorneys (JP)
Patent business corporation YKI international patent firm (JP)
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