US 9,808,220 B2
Probe for ultrasonic diagnostic apparatus
Jin Young Choi, Chuncheon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Dec. 12, 2012, as Appl. No. 13/712,132.
Claims priority of application No. 10-2011-0133504 (KR), filed on Dec. 13, 2011.
Prior Publication US 2013/0150725 A1, Jun. 13, 2013
Int. Cl. A61B 8/00 (2006.01); A61B 8/14 (2006.01); A61B 8/08 (2006.01)
CPC A61B 8/4455 (2013.01) [A61B 8/08 (2013.01); A61B 8/14 (2013.01); A61B 8/4272 (2013.01); A61B 8/4281 (2013.01); A61B 8/4444 (2013.01); A61B 8/4494 (2013.01); A61B 8/4461 (2013.01)] 18 Claims
OG exemplary drawing
 
1. 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.