Lens for Ultrasonic Diagnosis Apparatus and Probe for Ultrasonic Diagnosis Apparatus
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United States of America Patent
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Issued Date -
Mar 21, 2013
app pub date -
May 25, 2011
filing date -
May 31, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
This invention provides a lens for ultrasonic diagnosis apparatuses having requisite acoustic characteristics concerning sonic velocity, acoustic impedance and acoustic attenuation and exhibiting high abrasion resistance; the lens including a base formed from a silicone rubber composition, and a urethane coat layer placed on an outer surface of the base, wherein the urethane coat layer includes 100 parts by mass of a urethane resin and 3-7 parts by mass of silica. This invention also provides a probe therefor having the same characteristics, including a case having at least one open end; the lens arranged so that a tip thereof is exposed at the end; a piezoelectric element housed in the case; an acoustic matching layer placed between the lens and the element; and a backing layer disposed opposite the acoustic matching layer with the element in between.
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