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US 2010/0168581 A1Published application
Wide bandwidth matrix transducer with polyethylene third matching layer
AssigneeKoninklijke Philips Electronics N.V.
InventorsHeather Knowles, William Ossmann, Martha Wilson
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Abstract
An ultrasound transducer comprises a piezoelectric element (175), a first and second matching layers (120,130), and a third matching layer (140) comprising low-density polyethylene (LPDE). The third matching layer (140) affording wide bandwidth for an ultrasound matrix probe may extend downwardly to surround the array (S360) and attach to the housing to seal the array (S370).
Claims14
An ultrasound transducer (100) comprising:
- a piezoelectric element (175);
- first and second matching layers (120, 130);
- and
- a third matching layer (140) comprising low-density polyethylene (LDPE).
1 more element
An ultrasound transducer (100) comprising:
- an array (170) of transducer elements (175) arranged in a two-dimensional configuration;
- and
- at least three matching layers (120, 130, 140).
A method of making an ultrasound transducer (100) comprising:
- providing a piezoelectric element (175);
- and
- furnishing the element with three matching layers (120, 130, 140), the third comprising low-density polyethylene (LDPE).
A method for making an ultrasound transducer comprising:
- providing an array (170) of transducer elements (175) arranged in a two-dimensional configuration;
- and
- furnishing the array with at least three matching layers (S320, S330, S350).
Dependencies are inferred from the claim text.