04862893 is referenced by 121 patents and cites 9 patents.

A miniature transducer designed for use in a medical imaging system catheter probe is disclosed. The transducer has an electric cavity and coaxial construction for preventing electric fields from being emitted or received by the transducers. The construction of the transducer enables two to be mounted very close to one another on a thin catheter probe, one for transmitting acoustic pulses and the other for sensing echoes in response to the acoustic pulses, for imaging extremely close targets. The transducers can be secured to the catheter probe in such a way as to substantially acoustically isolate one from the other.

A method of making the transducer by applying several electrically-conductive and insulating coatings and layers to a core in selected sequence so as to create a transducer having an electrical cavity, coaxial construction.

Title
Ultrasonic transducer
Application Number
856621
Publication Number
4862893
Application Date
February 2, 1988
Publication Date
September 5, 1989
Inventor
Michael A Martinelli
Winchester
MA, US
Agent
Schiller Pandiscio & Kusmer
Assignee
Intra Sonix
MA, US
IPC
A61B 8/12
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