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:
Jan. 19, 1993
Filed:
May. 28, 1991
Harold B Levene, San Diego, CA (US);
James L Barnhart, Encinitas, CA (US);
Kenneth J Widder, Del Mar, CA (US);
Molecular Biosystems, Inc., San Diego, CA (US);
Abstract
Abdominal ultrasound imaging is carried out by oral or rectal administration of an aqueous imaging agent containing micron size clay particles together with a sufficient amount of a solubilized hydrocolloid to maintain the particles in suspension. The walls of the stomach, duodenum and colon become coated with the clay particles and are thereby more clearly delineated by the ultrasonic imaging beam. At the same time, ultrasonic waves partially pass through the walls and delineate structures outside thereof. Wall delineation and wall transparency can thereby be simultaneously achieved.