Ultrasonic contrast agents for color Doppler imaging

Patent 5425366 Issued on June 20, 1995. Estimated Expiration Date:

June 7, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Ultrasonic image enhancement
Patent #: 4276885
Issued on: 07/07/1981
Inventor: Tickner , et al.

Variable frequency gas-bubble-manipulating apparatus and method
Patent #: 4689986
Issued on: 09/01/1987
Inventor: Carson , et al.

Ultrasonic imaging agent and method of preparation
Patent #: 4774958
Issued on: 10/04/1988
Inventor: Feinstein

Ultrasonic color doppler diagnostic apparatus Patent #: 5215093
Issued on: 06/01/1993
Inventor: Miyazaki, et al.

Inventors

Assignee

Schering Aktiengesellschaft

Application

No. 072748 filed on 06/07/1993

US Classes:

600/458Contrast enhancement

Examiners

Primary: Jaworski, Francis J.

Attorney, Agent or Firm

Millen, White, Zelano, & Branigan

Foreign Patent References

1232837 CA. 02/12/1988
1239092 CA. 07/12/1988
0052575 EP. 05/12/1982
0077752 EP. 04/12/1983
0122624 EP. 10/12/1984
0123235 EP. 10/12/1984
0224934 EP. 06/12/1987
0327490 EP. 08/12/1989
0441468 EP. 08/12/1991
0484181 EP. 05/12/1992
3803972 DE. 08/12/1989
WO89/06978 WO. 08/12/1989
WO91/15999 WO. 10/12/1991
WO93/00991 WO. 01/12/1993

International Class

A61B 008/00

Foreign Application Priority Data

1988-02-05 DE

Abstract

The invention relates to a method for obtaining an ultrasonic image of a patient with ultrasonic color Doppler modality with microparticulate ultrasonic contrast agents in regions where the ultrasonic contrast agents are essentially motionless.

Other References

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Tyler et al., "In-vivo Enhancement of Ultrasonic Image Luminance by Aqueous Solutions with High Speed of Sound", Ultrasonic Imaging, vol. 3, pp. 323-329 (1981)
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