Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1996-06-03
1997-12-30
Kamm, William E.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 100
Patent
active
057024235
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This application is a 371 of PCT/JP95/01869 filed Sep. 20, 1995.
This invention relates to a disconnection checker for checking disconnection of lead cords in low-voltage output type low-frequency beautifying apparatuses whose output is about 1 mA, 6-9V.
BACKGROUND ART
Since the output voltages of low-frequency beautifying apparatuses generally used are high, the voltage can be felt by the body by contacting the lead to skin. If the skin feels the voltage, it is readily known that the lead cord is not disconnected. When the output voltage is abnormal, the circuit is automatically opened by fusion of a fuse or the like, thereby safety is assured.
However, with the conventional low-voltage output type low-frequency beautifying apparatuses whose output is about 1 mA, 6-9V, since the output voltage from the beautifying apparatus is low, it cannot be known from the feeling of the body whether a low-frequency current is conducted through the human body. Further, the beautifying apparatuses are not provided with a checker for checking disconnection of lead cords.
Thus, the conventional low-voltage output type low-frequency beautifying apparatuses whose output is about 1 mA, 6-9V have a drawback in that it is impossible to confirm disconnection of lead cords.
An object of the present invention is to overcome the above-mentioned problem in the prior art and to provide a disconnection checker for checking disconnection of lead cords in low-voltage output type low-frequency beautifying apparatuses, by which disconnection of lead cords can easily be checked.
SUMMARY OF THE INVENTION
In a first aspect of the present invention, the above-mentioned object is attained by providing a disconnection checker in low-voltage output type low-frequency beautifying apparatuses which carry out beautification by attaching two leads to a human body, which leads are connected to a lead cord, and passing low-voltage and low-frequency current through the leads, said disconnection checker comprising a terminal for checking disconnection arranged in a main body of said low-voltage output type low-frequency beautifying apparatus, and indicator means connected to said terminal for checking disconnection, wherein whether the lead cord is disconnected or not is known from an indication of said indicator means when a jack of said lead cord is inserted into said terminal for checking disconnection and said two leads connected to said lead cord are short-circuited.
With this constitution according to the first aspect of the present invention, when the jack is inserted into the terminal for checking disconnection and the two leads are contacted each other, which leads are connected to a lead cord, a circuit driving the indicator means connected to the terminal for checking disconnection is closed such that the indicator means is operated, or the above-mentioned circuit is not closed so that the indicator means remains non-operated.
According to the above-mentioned first aspect of the present invention, whether the lead cord is disconnected or not can be easily, quickly and surely checked by merely inserting a jack of the lead cord into a terminal for checking disconnection provided in a main body of the low-voltage output type low-frequency beautifying apparatus, short-circuiting the two leads and confirming the indication from the indicator means. Therefore, the lead cords which are not disconnected can be used as they are, and it is ordered that the lead cords which are disconnected be replaced. Thus, by using the disconnection checker, erroneous use of a disconnected lead cord is prevented, so that the use of lead cords which are not disconnected is assured for passing low-frequency electric current through a human body, even with a low-voltage type low-frequency beautifying apparatus.
The second aspect of the present invention provides a disconnection checker in low-voltage output type low-frequency beautifying apparatuses which carry out beautification by attaching two leads to human body, which leads are connected to
REFERENCES:
patent: 2301567 (1942-11-01), Morse
patent: 2837041 (1958-03-01), Pierson
patent: 3976055 (1976-08-01), Monter et al.
patent: 4160447 (1979-07-01), Teshima et al.
patent: 5273033 (1993-12-01), Hoffman
Kamm William E.
Mesotes Co. Ltd.
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