Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2004-07-02
2009-08-04
Casler, Brian (Department: 3737)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
C600S437000, C600S454000, C600S481000, C382S128000
Reexamination Certificate
active
07569016
ABSTRACT:
There are provided transmission means (1) for transmitting an ultrasonic signal from a surface of a skin of a subject toward a blood vessel (21) of the subject, reception means (3) for receiving a reflected ultrasonic echo and converting the ultrasonic echo into an electric signal to obtain the ultrasonic echo signal in a depth direction from the surface of the skin, movement detection means (5) for analyzing a phase of the ultrasonic echo signal in a direction traversing the blood vessel to calculate a movement amount in each of a plurality of regions including a blood vessel wall and a vicinity of the blood vessel wall, analysis means (7) for analyzing a state of the blood vessel based on a variation in the calculated movement amount in each of the regions, boundary position detection means (8) for detecting a boundary position between the blood vessel wall and a blood flow region of the blood vessel based on a result of the analysis by the analysis means, and stability judgment means (15) for comparing the detected boundary position with a detection result in a previous cycle.
REFERENCES:
patent: 4217909 (1980-08-01), Papadofrangakis et al.
patent: 4688428 (1987-08-01), Nicolas
patent: 5220923 (1993-06-01), Hagiwara et al.
patent: 5415172 (1995-05-01), Tannaka et al.
patent: 5840028 (1998-11-01), Chubachi et al.
patent: 6132373 (2000-10-01), Ito et al.
patent: 6176832 (2001-01-01), Habu et al.
patent: 6258031 (2001-07-01), Sunagawa et al.
patent: 6770034 (2004-08-01), Sunagawa et al.
patent: 2003/0009101 (2003-01-01), Sunagawa et al.
patent: 2003/0199762 (2003-10-01), Fritz et al.
patent: 2004/0260180 (2004-12-01), Kanai et al.
patent: 2007/0123777 (2007-05-01), Watanabe et al.
patent: 2889568 (1999-02-01), None
patent: 11-76233 (1999-03-01), None
patent: 2000-229078 (2000-08-01), None
patent: 2000-271117 (2000-10-01), None
patent: 2003-126090 (2003-05-01), None
Hasegawa et al., “Automatic Detection of Lumen-Intima Boundary of Posterior Wall of Carotid Artery”, The Institute of Electronics, Information and Communication Engineers, Technical Report of IEICE, US2003-16, pp. 5-10 (2003).
Umezawa et al., “Measurement of local pulse wave velocity for evaluation of viscoelasticity from small vibrations on artery measured using ultrasound”, The Institute of Electronics, Information and Communication Engineers, Technical Report of IEICE, EA99-42, pp. 17-23 (1999).
Hasegawa et al., “Evaluation of Regional Elastic Modulus of Cylindrical Shell with Nonuniform Wall Thickness”, J Med Ultrasonics, vol. 28, No. 1, pp. J3-J13 (2001).
Hagiwara Hisashi
Suzuki Takao
Tan-naka Yoshinao
Watanabe Yoshinobu
Casler Brian
Hamre Schumann Mueller & Larson P.C.
Mehta Parikha S
Panasonic Corporation
LandOfFree
Ultrasonic diagnostic apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultrasonic diagnostic apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic diagnostic apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4139066