Wide-bandwidth matrix transducer with polyethylene third...

Details Wide-bandwidth matrix transducer with polyethylene third... Wide-bandwidth matrix transducer with polyethylene third...

2007-06-29

2010-12-28

Dougherty, Thomas M (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

07859170

ABSTRACT:
A third matching layer (140) affording wide bandwidth for an ultrasound matrix probe is made of polyethylene, and may extend downwardly to surround the array (S360) and attach to the housing to seal the array (S370).

REFERENCES:
patent: 2949910 (1960-08-01), Brown et al.
patent: 4166967 (1979-09-01), Benes et al.
patent: 6396199 (2002-05-01), Douglas et al.
patent: 6666825 (2003-12-01), Smith et al.
patent: 2002/0000763 (2002-01-01), Jones
patent: 2007/0108872 (2007-05-01), Shibamoto et al.
patent: 2004-120283 (2005-04-01), None
patent: EP-1542005 (2005-06-01), None
patent: 2007-288396 (2007-11-01), None
patent: 2007-288397 (2007-11-01), None

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