Abstract: A device for removing hair is disclosed. The device comprises a container, filled with an impedance matching medium, and an ultrasound transducer element coupled to the container, such that ultrasound waves are generated by the transducer element in the impedance matching medium. The device further comprises a hair receiving element having at least one opening for receiving hair shafts, wherein a height of the opening is approximately an integer multiplication of half a wavelength of the ultrasound waves.

Abstract: A device for removing hair is disclosed. The device comprises a container, filled with an impedance matching medium, and an ultrasound transducer element coupled to the container, such that ultrasound waves are generated by the transducer element in the impedance matching medium. The device further comprises a hair receiving element having at least one opening for receiving hair shafts, wherein a height of the opening is approximately an integer multiplication of half a wavelength of the ultrasound waves.

Abstract: A system for generating heat at a target location is disclosed. The system comprises a fiber device having a distal end and a proximal end, an acoustic wave generator for generating acoustic waves, and an acoustic coupler for coupling acoustic energy carried by the acoustic waves into the distal end such that heat is generated at the distal end.

Abstract: A device for treating a skin tissue is disclosed. The device comprises a device body having an anterior compartment and being formed with at least one suction port, and an ultrasound unit configured for generating an ultrasound wave into the anterior compartment. When an under pressure is formed in the suction port, the skin tissue is drawn by vacuum into the anterior compartment and irradiated by the ultrasound wave to form a focal spot optionally and preferably at a distance of from about 0.2 mm to about 4 mm below an external surface of the skin tissue.

Abstract: A device for removing hair is disclosed. The device comprises a container, filled with an impedance matching medium, and an ultrasound transducer element coupled to the container, such that ultrasound waves are generated by the transducer element in the impedance matching medium. The device further comprises a hair receiving element having at least one opening for receiving hair shafts, wherein a height of the opening is approximately an integer multiplication of half a wavelength of the ultrasound waves.

Abstract: A method of treating unwanted hair is disclosed. The method comprises: transmitting acoustic waves through the hair so as to generate heat at a follicle, a dermal papilla, a hair bulge and/or a germinal matrix of the hair. The heat itself is sufficient to damage or destroy the follicle, the dermal papilla, the hair bulge and/or the germinal matrix.

Abstract: A method of treating unwanted hair is disclosed. The method comprises: transmitting acoustic waves through the hair so as to generate heat at a follicle, a dermal papilla, a hair bulge and/or a germinal matrix of the hair. The heat itself is sufficient to damage or destroy the follicle, the dermal papilla, the hair bulge and/or the germinal matrix.