Abstract: Disclosed is an ultrasonic transducer including a housing, a base disposed on a front surface of the housing, and multiple linear arrays each arranged in a radial direction on the base, extending from a central region of the base, and configured to irradiate a therapeutic ultrasonic wave, the linear arrays each including a plurality of piezoelectric elements which are linear elements extending side by side with each other in the radial direction.

Abstract: The present invention provides a limb compression device, including: a main body having a first surface where a support portion wrapping around a portion of a limb is provided, and a second surface where a fixing shaft fixing a cuff wrapping around a remaining portion of the limb is mounted; a drive motor coupled to the main body; a reduction gear unit coupled to a drive shaft of the drive motor; a cuff fixing drum fixing the cuff, and having a first end coupled to the reduction gear unit and a second end coupled to the main body such that the cuff fixing drum winds and unwinds the cuff; and the cuff including a first end fixed to the cuff fixing drum and a second end wound around the fixing shaft via the support portion of the main body so as to wrap around the remaining portion of the limb.

Abstract: The present invention relates to an external counterpulsation system that senses biosignals to monitor a heart condition and performs external counterpulsation on the basis of the monitored heart condition. The external counterpulsation system includes: a compression device wrapping around limbs of a subject to compress or decompress the wrapped limbs; and a controller configured to calculate compression timing and decompression timing for the external counterpulsation by analyzing an electrocardiogram signal and a blood flow rate signal among the sensed biosignals, and control the compression device on the basis of the calculated compression timing and decompression timing.

Abstract: The present invention relates to an external counterpulsation system which senses a biosignal to monitor a heart condition and performs external counterpulsation in response to the monitored heart condition. The present invention comprises: a compression device surrounding limbs of a subject to compress the surrounded limbs or release the limbs from the compression; and a control device which controls the compression device to apply test compression to the limbs for a predetermined test period with predetermined test intensity before performing the external counterpulsation, configures personalized maximum compression intensity corresponding to the subject through the test compression, and controls the compression device to perform the external counterpulsation on the basis of the configured maximum compression intensity.

Abstract: The present invention discloses an (x-ray) bone densitometer comprising a stand including an “L”-shape handle consisting of an a horizontal and a vertical plate capable of rotating between an horizontal position and a vertical position on the horizontal plate, a handle groove, a first guide pin and a second guide pin, and a stand groove; and a housing including an opening formed perpendicular in the center of the upper part (of said housing), the opening having one or more of the first and the second guide grooves for guiding the movements of first and said second guide pins, a stand settle groove for settling the stand when the stand is settled horizontally, and a stand erecting groove for supporting the stand when the stand is erected in slope.