PROBE FOR ULTRASONIC DIAGNOSTIC APPARATUS
First Claim
1. A probe for an ultrasonic diagnostic apparatus, the probe comprising a transducer module to transmit and receive ultrasonic waves,wherein the transducer module comprises a piezoelectric device transmitting and receiving ultrasonic waves, at least one matching layer disposed on the front surface of the piezoelectric device, a backing layer disposed on the rear surface of the piezoelectric device, a backing block disposed on the rear surface of the backing layer, and a gas layer disposed between the backing layer and the backing block.
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Accused Products
Abstract
Disclosed herein is a probe for an ultrasonic diagnostic apparatus including a transducer module that transmits and receives ultrasonic waves. The transducer module includes a piezoelectric device transmitting and receiving ultrasonic waves, at least one matching layer disposed on the front surface of the piezoelectric device, a backing layer disposed on the rear surface of the piezoelectric device, a backing block disposed on the rear surface of the backing layer, and a gas layer disposed between the backing layer and the backing block. Since acoustic energy proceeding in the backward direction of the piezoelectric device is reflected by the gas layer toward the piezoelectric device, sensitivity of the transducer module is improved.
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Citations
12 Claims
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1. A probe for an ultrasonic diagnostic apparatus, the probe comprising a transducer module to transmit and receive ultrasonic waves,
wherein the transducer module comprises a piezoelectric device transmitting and receiving ultrasonic waves, at least one matching layer disposed on the front surface of the piezoelectric device, a backing layer disposed on the rear surface of the piezoelectric device, a backing block disposed on the rear surface of the backing layer, and a gas layer disposed between the backing layer and the backing block.
Specification