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:
Oct. 14, 1997
Filed:
Jun. 06, 1995
Jo Klaveness, Oslo, NO;
Arne Berg, Sandvika, NO;
Trond Vegard Jacobsen, Oslo, NO;
Pal Rongved, Nesoddtangen, NO;
Thorfinn Ege, Tranby, NO;
Hiroshi Kikuchi, Tokyo, JP;
Kiyoto Yachi, Tokyo, JP;
Nycomed Imaging AS, Oslo, NO;
Daiichi Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
The invention provides a diagnostic composition for administration to human or animal subjects, the composition containing multilamellar liposomes, optionally together with unilamellar liposomes, the liposomes containing at least one imaging agent and being suspended in an aqueous medium containing said imaging agent, wherein the liposomes comprise a neutral phospholipid and a charged phospholipid, the average particle diameter of the liposomes is 50-3000 nm and the concentration of imaging agent in any aqueous phase filling the interior of the liposomes is substantially the same as that in the aqueous medium in which the liposomes are suspended. The contrast agents concerned are typically X-ray, MRI or ultrasound contrast agents.