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. 02, 1994
Filed:
Mar. 23, 1993
Applicant:
Inventors:
Ernest G Tickner, Coulterville, CA (US);
Robert E Short, Los Gatos, CA (US);
David H Rammler, Woodside, CA (US);
Assignee:
Delineate, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
12866202 ; 12866001 ;
Abstract
Ultrasonic contrast media are provided comprising small particles with entrapped gas, where the compositions can be selected for rapid dissolution with production of microbubbles or maintaining the gas in microtubules, microchambers or microcracks, providing for echogenicity. The particles are readily formed by precipitation from a liquid, either solution or melt, of a monomeric material, followed by drying and mechanically reducing the size of the particles.