Off-aperture electrical connect transducer and methods of making
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United States of America Patent
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Jun 18, 2002
Grant Date -
N/A
app pub date -
Jul 21, 1999
filing date -
Jul 21, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides ultrasound transducer packages having off-aperture electrical connections, imaging assemblies employing such packages, and methods of making same. In one embodiment, a transducer package (10) for an imaging catheter includes a transducer element (14) and a matching layer (12) operably attached to the transducer element to create an overhang portion (18) of the matching layer. A lead (20) is operably attached to the overhang portion. This arrangement permits the transmission of signals to, and receipt from, the transducer by establishing an electrical connection with the overhang portion via the lead. In another embodiment, the matching layer comprises a thermoplastic which can be tuned to have a desired acoustic impedance according to methods of the present invention.
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