Ultrasound coating for enhancing visualization of medical device in ultrasound images
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United States of America Patent
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Issued Date -
Apr 7, 2005
app pub date -
Oct 3, 2003
filing date -
Oct 3, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention enhances ultrasonic visualization of a medical device by coating the surface of the medical device with a contrast agent preferably comprising microbubbles. The contrast agent responds to incident ultrasound waves to generate vibrations at a harmonic frequency (i.e., a harmonic of the frequency of the incident wave), non-harmonic vibrations or a combination of harmonic and non-harmonic vibrations. In one embodiment, the microbubbles are coated on the medical device using an intermediate adhesion layer that adheres to the surface of the device. In a second embodiment, the microbubbles are incorporated in the adhesion layer.
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