Probe for ultrasonic diagnostic apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorJin Young Choi
Life of this patent
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Abstract
A probe for an ultrasonic diagnostic apparatus which is used for performing a test upon a subject is provided. The probe includes a case which forms an exterior of the probe, a piezoelectric object which is provided on an inside of the case and which generates an ultrasonic wave, a sound absorbing layer which is provided at a rear surface of the piezoelectric object and which prevents the ultrasonic wave from being delivered to a rear portion of the piezoelectric object, an acoustic matching layer which delivers the generated ultrasonic wave to a subject by matching a sound impedance of the piezoelectric object with a sound impedance of the subject, and a sound lens which concentrates the generated ultrasonic wave and radiates the concentrated ultrasonic wave toward the subject.
Claims18
A probe for an ultrasonic diagnostic apparatus, comprising:
- a case which forms an exterior of the probe;
- a piezoelectric object which is provided at an inside of the case and which generates an ultrasonic wave;
- a backing layer which is provided at a rear surface of the piezoelectric object and which prevents the generated ultrasonic wave from being delivered to a rear portion of the piezoelectric object;
- an acoustic matching layer which is provided at a front surface of the piezoelectric object and which delivers the generated ultrasonic wave from the piezoelectric object to a subject by matching a sound impedance of the piezoelectric object with a sound impedance of the subject;
- a single acoustic lens which is provided at a front surface of the acoustic matching layer and which concentrates the generated ultrasonic wave and radiates the concentrated ultrasonic wave toward the subject;
- a moving layer which is provided at a rear surface of the backing layer and which changes a radius of curvature of the acoustic lens, and
- a driving member which causes the moving layer to move,
- wherein the moving layer comprises a liquid and a film surrounding the liquid, and
- wherein the single acoustic lens includes a concave portion which facilitates performance of a diagnosis along a curved surface of the subject, and has a varying radius of curvature.
An ultrasonic diagnostic apparatus comprising a probe including a cover portion in contact with a subject and a transducer which is disposed on a rear surface of the cover portion and having a piezoelectric object, an acoustic matching layer, a single acoustic lens, and a backing layer which are configured to inter-convert an electrical signal and a sound signal,
- wherein the probe comprises:
- a concave portion disposed to be inwardly recessed on a surface of the transducer in contact with the cover portion and configured to diagnose the subject along a curved surface of the subject;
- and
- a moving layer disposed on a rear surface of the transducer and configured to change a radius of curvature of a portion of the single acoustic lens which is configured to make contact with the subject,
- wherein the moving layer comprises a liquid and a film surrounding the liquid.
A probe for an ultrasonic diagnostic apparatus, comprising:
- a case which forms an exterior of the probe;
- a piezoelectric object which is provided at an inside of the case and which generates an ultrasonic wave;
- a backing layer which is provided at a rear surface of the piezoelectric object and which prevents the generated ultrasonic wave from being delivered to a rear portion of the piezoelectric object;
- an acoustic matching layer which is provided at a front surface of the piezoelectric object and which delivers the generated ultrasonic wave to a subject by matching a sound impedance of the piezoelectric object with a sound impedance of the subject;
- a single acoustic lens which is provided at a front surface of the acoustic matching layer and which concentrates the generated ultrasonic wave and radiates the concentrated ultrasonic wave toward the subject;
- a concave portion disposed on the sound lens and configured to diagnose the subject along a curved surface of the subject;
- and
- a moving layer disposed on a rear surface of the backing layer and configured to change radius of curvature of the single acoustic lens,
- wherein the moving layer comprises a liquid and a film surrounding the liquid.
Dependencies are inferred from the claim text.