Contrast agents comprising an azeotropic mixture of two gases for ultrasound investigations

US6177061A · kind A · utility

Assignee

• NYCOMED IMAGING AS · NO

Inventors

• Jo Klaveness · Oslo, NO
• Roald Skurtveit · Oslo, NO
• Pal Rongved · Oslo, NO
• Lars Hoff · Oslo, NO

Key dates

• Filing date: Oct 21, 1999
• Grant date: Jan 23, 2001
• Expiry date: Oct 21, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K49/223
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A contrast agent for use in diagnostic studies, particularly ultrasound imaging, comprising a dispersion in an injectable aqueous medium of a biocompatible azeotropic mixture which is in gaseous form at 37.degree. C., at least one component of said mixture being a halocarbon having a molecular weight of at least 100.