Ultrasonic wave cosmetic device
First Claim
1. An ultrasonic wave cosmetic device for treating skin, comprising:
- a probe head having a skin contact metal surface for contacting the skin to transmit an ultrasonic wave to the skin, the probe head having a cup-like opening on a side opposite to the skin contact metal surface;
an ultrasonic wave vibration element mounted in the cup-like opening in the probe head for generating the ultrasonic wave by vibrating at an ultrasonic wave frequency in response to an output signal from an ultrasonic wave oscillation circuit; and
a temperature sensor mounted in a space between the ultrasonic wave vibration element and an inner wall of the cup-like opening in a manner directly contacting both a side surface of the ultrasonic wave vibration element and a surface opposite to the skin contact metal surface for detecting a temperature of the probe head and supplying a detection signal to the ultrasonic wave oscillation circuit, for controlling the output signal of the ultrasonic wave oscillation circuit to maintain the temperature of the probe head lower than a predetermined level.
1 Assignment
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Accused Products
Abstract
An improved ultrasonic wave cosmetic device which is able to protect skin against burns. The ultrasonic wave cosmetic device for treating skin includes a probe head having a skin contact metal surface for contacting the skin to transmit an ultrasonic wave thereto, an ultrasonic wave vibration element for vibrating at an ultrasonic wave frequency in response to an output signal from an ultrasonic wave oscillation circuit, and a temperature sensor mounted in a manner directly contacting a side surface of the ultrasonic wave vibration element and a surface opposite the skin contact metal surface for detecting the temperature of the probe head. The temperature sensor feeds back signals to the oscillation circuit which terminates the oscillation output signal when the probe head gets too hot.
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Citations
9 Claims
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1. An ultrasonic wave cosmetic device for treating skin, comprising:
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a probe head having a skin contact metal surface for contacting the skin to transmit an ultrasonic wave to the skin, the probe head having a cup-like opening on a side opposite to the skin contact metal surface; an ultrasonic wave vibration element mounted in the cup-like opening in the probe head for generating the ultrasonic wave by vibrating at an ultrasonic wave frequency in response to an output signal from an ultrasonic wave oscillation circuit; and a temperature sensor mounted in a space between the ultrasonic wave vibration element and an inner wall of the cup-like opening in a manner directly contacting both a side surface of the ultrasonic wave vibration element and a surface opposite to the skin contact metal surface for detecting a temperature of the probe head and supplying a detection signal to the ultrasonic wave oscillation circuit, for controlling the output signal of the ultrasonic wave oscillation circuit to maintain the temperature of the probe head lower than a predetermined level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification