Ultra-thin acoustic transducer and balloon catheter using same in imaging array subassembly
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United States of America Patent
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Jun 27, 1989
Grant Date -
N/A
app pub date -
May 26, 1987
filing date -
May 26, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An array of miniature ultrasound crystals mounted on preassembled subassembly which is, in turn, mounted on a small lumen catheter provides dimensional and other quantitative information relating to arterial wall geometry and character at disease or obstruction sites. Balloons also mounted to the catheter make it possible to use the catheter for the angioplasty (PCTA) procedure while actually imaging, in real time, the artery being dilatated and unblocked by the procedure. Efficient, highly miniature transducers are presented along with several different configurations for catheter structure containing fluid lumen, through-lumen, and electrical microcable assemblies for conducting electrical signals to and from the transducers.
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