2results about "Devices using mechanical vibrations" patented technology

The application belongs to the technical field of ultrasonic application, and particularly relates to a method for generating a vortex focusing acoustic beam, which comprises the following steps: focusing ultrasonic waves are incident into an acoustic reflection cavity to form a spatial reflection mechanism; the spatial reflection mechanism is used for multiple reflection and transmission of the acoustic waves to form focusing acoustic beams with different apertures and focal lengths; phase delay and wavefront distortion are performed on the focusing acoustic beams to generate multiple vortex focusing acoustic beams carrying orbital angular momentum; the spatial reflection mechanism is used for continuous modulation of separation and focal point distribution of the vortex focusing acoustic beams to form multiple cascaded short-focus vortex focal points on an acoustic axis, and the vortex focusing acoustic beams with an ultralong focal length are superimposed and synthesized. The application solves the problems of complex generation mode and poor stability of the vortex focusing acoustic beam in the prior art.

Embodiments of the present disclosure provide a vibrator and an acupuncture needle, the vibrator comprising an elastic member and a magnetic counterweight member, the first end of the elastic member having a mounting portion, the mounting portion being used to connect to the acupuncture needle, and the counterweight member being mounted on the second end of the elastic member. The acupuncture needle comprises a needle body and the vibrator, the needle body having a needle tip mounted on a first end along its longitudinal direction, the needle handle mounted on a second end along its longitudinal direction, and one end of the needle handle away from the needle tip being connected to the vibrator. The vibrator of the embodiment of the present disclosure is applied to an acupuncture needle, the counterweight member of the vibrator increases the oscillation range of the elastic member, increases the vibration of the acupuncture needle, and improves the stimulating effect of the acupuncture needle on acupoints, the vibrator and acupuncture needle are simple in structure, easy to process and easy to use.