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.

Date of Patent:
Jun. 23, 2026

Filed:

Aug. 09, 2019
Applicants:

The Regents of the University of California, Oakland, CA (US);

The United States Government, As Represented BY the Department of Veterans Affairs, Washington, DC (US);

Inventor:

Benjamin M. Yeh, Hillsborough, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 49/18 (2006.01); A61B 5/00 (2006.01); A61B 5/055 (2006.01); A61K 9/00 (2006.01); A61K 47/36 (2006.01);
U.S. Cl.
CPC ...
A61K 49/1818 (2013.01); A61B 5/004 (2013.01); A61B 5/055 (2013.01); A61B 5/4238 (2013.01); A61B 5/4255 (2013.01); A61K 9/0053 (2013.01); A61K 47/36 (2013.01);
Abstract

Provided are MR images of a subject gastrointestinal tract structure in which the lumen of the structure is usefully darkened on both T1-weighted and T2-weighted images when the structure is imaged following administration to the subject of an enteric contrast agent formulation with particles containing encapsulated gas or partial vacuum. The present invention provides an encapsulated gas or partial vacuum particle contrast medium of use in acquiring such MR images. In an exemplary embodiment, the invention provides an enteric contrast medium formulation. An exemplary formulation comprises, (a) an enteric contrast medium comprising a encapsulated gas or partial vacuum particle suspended in water.


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