CONTROL METHOD AND STRUCTURE OF LASER BEAM IRRADIATION BY USING A CONTACT SENSOR
The present invention relates to a laser beam control structure and method. A laser beam control structure of the present invention comprises a handpiece for irradiating laser beams output from a laser beam output device, on a predetermined part; at least one electrode unit positioned at a human body contact portion of the handpiece and receiving hum noise generated from a human body; and a control unit electrically connected to the electrode unit so as to measure the hum noise applied from the electrode unit and to case the laser beams to be irradiated according to the measured hum noise. According to the present invention, there are advantages in that various types of hum noise generated from a human body are measured without applying an electric current to the human body, and a laser beam is irradiated according to the measured hum noise.
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The present invention relates to a laser beam control structure and method, and more particularly, to a laser beam control structure and method, wherein various types of hum noise generated from a human body are measured without applying an electric current to the human body, and a laser beam is irradiated according to the measured hum noise.
BACKGROUND ARTGenerally, in micro fractional ablation that has been recently developed as a clinical method for dermatological treatment, a micro laser beam is irradiated in various patterns on a certain area of the skin. At this time, a handpiece tip should be in contact with the skin so that the size of the laser beam can be maintained accurately. Various contact sensors have been used to determine whether the handpiece tip is in contact with the skin.
Referring to
However, in the method of measuring an electric current flowing through a human body, the amplitude of an electric current flowing when two electrodes are in contact with the skin varies according to persons and skin resistance depends on parts to be treated or skin conditions. As a result, there is a problem in that it takes much time to differently deal with respective conditions.
DISCLOSURE OF INVENTION Technical ProblemAccordingly, the present invention is conceived to solve the aforementioned problems. An object of the present invention is to provide a laser beam control structure and method, wherein various types of hum noise generated from a human body are measured without applying an electric current to the human body, and a laser beam is irradiated according to the measured hum noise.
Technical SolutionTo achieve the object of the present invention, a laser beam control structure of the present invention comprises a handpiece for irradiating laser beams output from a laser beam output device, on a predetermined part; at least one electrode unit positioned at a human body contact portion of the handpiece and receiving hum noise generated from a human body; and a control unit electrically connected to the electrode unit so as to measure the hum noise applied from the electrode unit and to cause the laser beams to be irradiated according to the measured hum noise.
The control unit may comprise an amplification unit for amplifying the measured hum noise; and a modulation unit for converting the hum noise applied from the amplification unit into a digital signal.
A laser beam control method of the present invention comprises the steps of: 1) measuring hum noise generated from a human body; 2) checking a contact state between the electrode unit and a human body; and 3) checking, based on the measured hum noise, whether laser beams will be irradiated and irradiating the laser beams. Step 1) further comprises the steps of amplifying the measured hum noise; and converting the amplified hum noise into a digital signal.
Advantageous EffectsThe present invention constructed as above has the following advantages.
According to the present invention, there are advantages in that various types of hum noise generated from a human body are measured without applying an electric current to the human body, and a laser beam is irradiated according to the measured hum noise.
Further, there is an advantage in that a handpiece can be in perpendicular contact with a human body to ensure more effective irradiation of laser beams.
Hereinafter, a laser beam control structure of the present invention will be described in detail with reference to the accompanying drawings.
Referring to
As shown in
The control unit 120 comprises an amplification unit 122 for amplifying the measured hum noise; and a modulation unit 124 for converting the hum noise applied from the amplification unit 122 into a digital signal, and functions to apply a signal for causing the handpiece 100 to irradiate the laser beams in response to an electrode contact signal from the electrode unit 110. Here, any control circuit may be used for the control unit 120 so far as the control circuit can amplify and digitalize the hum noise applied from the electrodes.
Referring to
That is, when the electrode unit comes into contact with the human body in the measuring step, specific hum noise is generated from the human body. Accordingly, the electrode unit receives the hum noise in the measuring step, thereby preventing the occurrence of an error due to application of an electric current to the human body, and ensuring fast and rapid measurement regardless of various conditions of the human body. Further, the applied hum noise is amplified and digitalized so that a user can easily recognize the hum noise.
Further, when the electrode unit completely comes into contact with the human body, the control unit causes the laser beams to be irradiated, so that the human body can be treated in a state where the handpiece is always perpendicular to the human body, resulting in improved efficiency.
The present invention is not limited to the embodiments described above, and those skilled in the art can make various modifications and changes thereto. The modifications and changes fall within the spirit and scope of the present invention defined by the appended claims.
Claims
1.-4. (canceled)
5. A method for controlling a laser irradiating device, comprising:
- measuring electronic noise generated from a human body using at least one electrode unit positioned at a human body contact portion of a handpiece;
- amplifying the measured electronic noise and converting the amplified electronic noise into a digital signal; and
- controlling the handpiece to irradiate a laser beam according to the electronic noise.
6. The method for controlling a laser irradiating device as claimed in claim 1 further comprising:
- checking a contact state between the at least one electrode unit and the human body; and
- determining whether laser beam will be irradiated or not, based on the measured electronic noise.
7. A laser irradiating device, comprising:
- an irradiating portion for irradiating laser beams generated from a laser beam output device;
- a detecting portion comprising at least one electrode unit and detecting electronic signals from human body during contacting the human body;
- a control portion electrically connected to the detecting portion so as to measure the electronic signal detected from the detecting portion and controlling the irradiating portion to irradiate the laser beams based on the measured electronic signal.
8. The laser irradiating device as claimed in claim 7, wherein the control portion comprises an amplification unit for amplifying the measured electronic signals; and a modulation unit for converting the electronic signals applied from the amplification unit into digital signals.
Type: Application
Filed: Sep 10, 2012
Publication Date: May 16, 2013
Applicant: LUTRONIC CORPORATION (Gyeonggi-do)
Inventors: Hak Ki Choi (Seoul), Tae Ho Ha (Gyeonggi-do), Hae Lyung Hwang (Gyeonggi-do), Sung Huan Gong (Seoul)
Application Number: 13/608,029
International Classification: A61B 18/20 (20060101);