IP Library Granted Patent US 6,875,420
Granted Patent B1
US 6,875,420 · App. 08/896,821 · Granted Apr 5, 2005

Method of ultrasound imaging

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Quick Facts
Patent No.
US 6,875,420
App. No.
08/896,821
Granted
Apr 5, 2005
Kind
B1
Abstract

Disclosed herein are agents for enhancing the contrast in an ultrasound image. These agents are extremely small bubbles, or “microbubbles,” comprised of specially selected gases. The microbubbles described herein exhibit long life spans in solution and may be produced at a size small enough to traverse the lungs, thus enabling improved ultrasound imaging of the cardiovascular system and other vital organs. Also disclosed herein is a method for selecting gases from which contrast agents may be produced. The method is based on calculations using inherent physical properties of gases and describes a means to associate the properties of a gas with the time for dissolution of microbubbles comprised of the gas.

Claims (1)

1. A method comprising ultrasound imaging, the improvement comprising enhancing the contrast in an ultrasound image by selecting for use as an enhancing agent microbubbles of a gas including perfluoropentane.

Assignments (4)
CHANGE OF NAME Recorded Aug 2, 2006
From: AMERSHAM HEALTH AS; NYCOMED IMAGING AS
To: GE HEALTHCARE AS
Reel/Frame 018039/0537 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S NA Recorded Jul 21, 2003
From: SONUS PHARMACEUTICALS, INC.
To: AMERSHAM HEALTH A/S
Reel/Frame 013813/0629 →
CORRECTED RECORDATION OF ASSIGNMENT TO CORRECT RECEIVING PARTY'S NAME PREVIOUSLY RECORDED ON REEL 013128, FRAME 0312. Recorded Mar 4, 2003
From: SONUS PHARMACEUTICALS, INC.
To: AMERSHAM HEALTH AS
Reel/Frame 013813/0267 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2002
From: SONUS PHARMACEUTICALS, INC.
To: AMERSHAM PLC
Reel/Frame 013128/0312 →