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:
Aug. 21, 1984
Filed:
Oct. 13, 1982
Applicant:
Inventors:
Juergen Hilmann, Berlin, DE;
Rolf-Ruediger Hoffmann, Berlin, DE;
Wolfgang Muetzel, Berlin, DE;
Ingfried Zimmermann, Berlin, DE;
Assignee:
Schering Aktiengesellschaft, Berlin and Bergkamen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128653 ; 128660 ;
Abstract
The useful lifetime and the amount of microbubbles of a size less than 50 .mu.m produced by mechanical agitation of an aqueous liquid employed as an ultrasonic contrast medium are increased by employing a liquid containing dissolved therein a tenside which reduces the surface tension of the liquid and a compound which raises the viscosity of the liquid.