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US 10,370,532 B2Granted
Resin composition, backing material for ultrasonic vibrator, ultrasonic vibrator, and ultrasonic endoscope
AssigneeOlympus Corporation
InventorsKoji Kobayashi, Takae Hayashi, Kunihisa Obi
Life of this patent
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Abstract
A resin composition of the present invention contains: an epoxy resin (A); a hardener (B); and an ion exchanger (C). At least one of the epoxy resin (A) and the hardener (B) contains a modified silicone (S), and the epoxy resin (A) is at least one type selected from the group consisting of a bisphenol A type epoxy resin, a bisphenol F type epoxy resin, a phenol novolac type epoxy resin, and an epoxy-modified silicone.
Claims8
An ultrasonic vibrator comprising:
- a piezoelectric element;
- a backing material provided to be in contact with a first surface of the piezoelectric element;
- an acoustic matching layer which has a first surface and a second surface, the first surface provided to be in contact with a second surface of the piezoelectric element and the backing material;
- and
- an acoustic lens provided to be in contact with the second surface of the acoustic matching layer,
- wherein the backing material is obtained by heating and molding a resin composition that includes:
- an epoxy resin (A);
- a hardener (B);
- and
- an ion exchanger (C),
- wherein at least one of the epoxy resin (A) and the hardener (B) contains a modified silicone (S), and
- wherein the epoxy resin (A) is at least one type selected from the group consisting of a bisphenol A type epoxy resin, a bisphenol F type epoxy resin, a phenol novolac type epoxy resin, and an epoxy-modified silicone.
9 more elements
An ultrasonic endoscope comprising:
- an insertion portion which is configured to be inserted into a body and is provided with an ultrasonic vibrator;
- an operation portion connected to a proximal end of the insertion portion;
- and
- a universal cord extending from the operation portion,
- wherein the ultrasonic vibrator includes:
- a piezoelectric element;
- a backing material provided to be in contact with a first surface of the piezoelectric element;
- an acoustic matching layer which has a first surface and a second surface, the first surface provided to be in contact with a second surface of the piezoelectric element and the backing material;
- and
- an acoustic lens provided to be in contact with the second surface of the acoustic matching layer,
- wherein the backing material is obtained by heating and molding a resin composition that includes:
- an epoxy resin (A);
- a hardener (B);
- and
- an ion exchanger (C),
- wherein at least one of the epoxy resin (A) and the hardener (B) contains a modified silicone (S), and
- wherein the epoxy resin (A) is at least one type selected from the group consisting of a bisphenol A type epoxy resin, a bisphenol F type epoxy resin, a phenol novolac type epoxy resin, and an epoxy-modified silicone.
14 more elements
Dependencies are inferred from the claim text.