Ultrasonic imaging system utilizing a long-persistence contrast agent
DCFirst Claim
1. A system for providing a ultrasound image of at least a part of an object or body comprising:
- an ultrasound imaging apparatus; and
a kit capable of producing a stabilized microbubble preparation wherein said preparation comprises an aqueous medium having dispersed therein a plurality of osmotically stabilized microbubbles, said microbubbles comprising a generally spherical microbubble membrane containing at least one modifier gas and at least one gas osmotic agent, wherein said modifier gas and said gas osmotic agent are present in a molar ratio from about 1;
100 to about 1000;
1 wherein said ratio is effective to stabilize said microbubble preparation, and wherein said gas osmotic agent is selected from the group consisting of perfluoropentane, perfluorocyclopentane, perfluoromethylcyclopentane, perfluorodimethylcyclobutane, perfluorohexane, perfluorocyclohexane, perfluoroheptane, perfluorocycloheptane, perfluoromethylcyclohexane, perfluorodimethylcyclopentane, perfluorotrimethylcyclobutane, perfluorotriethylamine and combinations thereof.
14 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A microbubble preparation formed of a plurality of microbubbles comprising a first gas and second gas surrounded by a membrane such as a surfactant, wherein the first gas and the second gas are present in a molar ration of from about 1:100 to abut 1000:1, and wherein the first gas has a vapor pressure of at least about (760−X) mm Hg at 37° C., where x is the vapor pressure of the second gas at 37° C., and wherein the vapor pressure of each of the first and second gases is greater than about 75 mm Hg at 37° C.; also disclosed are methods for preparing microbubble compositions, including compositions that rapidly shrink from a first average diameter to a second average diameter less than about 75% of the first average diameter and are stabilized at the second average diameter; methods and kits for preparing microbubbles; and methods for using such microbubbles as contrast agents.
-
Citations
99 Claims
-
1. A system for providing a ultrasound image of at least a part of an object or body comprising:
-
an ultrasound imaging apparatus; and
a kit capable of producing a stabilized microbubble preparation wherein said preparation comprises an aqueous medium having dispersed therein a plurality of osmotically stabilized microbubbles, said microbubbles comprising a generally spherical microbubble membrane containing at least one modifier gas and at least one gas osmotic agent, wherein said modifier gas and said gas osmotic agent are present in a molar ratio from about 1;
100 to about 1000;
1 wherein said ratio is effective to stabilize said microbubble preparation, and wherein said gas osmotic agent is selected from the group consisting of perfluoropentane, perfluorocyclopentane, perfluoromethylcyclopentane, perfluorodimethylcyclobutane, perfluorohexane, perfluorocyclohexane, perfluoroheptane, perfluorocycloheptane, perfluoromethylcyclohexane, perfluorodimethylcyclopentane, perfluorotrimethylcyclobutane, perfluorotriethylamine and combinations thereof.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 75, 76, 77, 78, 79, 80)
-
-
48. A system for providing a ultrasound image of at least a part of an object or body comprising:
-
an ultrasound imaging apparatus; and
a kit capable of producing a stabilized microbubble preparation wherein said preparation comprises an aqueous medium having dispersed therein a plurality of osmotically stabilized microbubbles, said microbubbles comprising a generally spherical microbubble membrane containing at least one modifier gas and at least one gas osmotic agent, wherein said gas osmotic agent comprises the vapor of a compound which is a liquid at 37°
C. and 760 Torr, and wherein said modifier gas and said gas osmotic agent are present in a molar ratio from about 1;
100 to about 1.000;
1. wherein said ratio is effective to stabilize said microbubble preparation.- View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 74, 81, 82, 83, 84, 85, 86)
-
-
61. A system for providing a ultrasound image of at least a part of an object or body comprising:
-
an ultrasound imaging apparatus; and
a kit capable of producing a stabilized microbubble preparation wherein the preparation comprises an aqueous medium having dispersed therein a plurality of osmotically stabilized microbubbles, said microbubbles comprising a generally spherical microbubble membrane comprising proteinaceous material containing at least one modifier gas and at least one gas osmotic agent, wherein said modifier gas and said gas osmotic agent are present in a molar ratio from about 1;
100 to about 1,000;
1, wherein said ratio is effective to stabilize said microbubble preparation.- View Dependent Claims (62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 87, 88, 89, 90, 91, 92)
-
-
93. A system for providing a ultrasound image of at least of an object or body comprising:
-
an ultrasound imaging apparatus; and
a kit capable of producing a stabilized microbubble preparation wherein said preparation comprises an aqueous medium having dispersed therein a plurality of osmotically stabilized microbubbles, said microbubbles comprising a generally spherical microbubble membrane containing at least one modifier gas and at least one gas osmotic agent, wherein said modifier gas and said gas osmotic agent are present in a molar ratio from about 1;
100 to 1,000;
1, wherein said ratio is effective to stabilize said microbubble preparation, and wherein said modifier gas is selected from the group consisting of perfluoropropane, perfluorobutane, perfluorocyclobutane, perfluoromethylcyclobutane, perfluoropentane and perfluorocyclopentane and combinations thereof.- View Dependent Claims (94, 95, 96, 97, 98, 99)
-
Specification