U.S. patent application number 13/608029 was filed with the patent office on 2013-05-16 for control method and structure of laser beam irradiation by using a contact sensor.
This patent application is currently assigned to LUTRONIC CORPORATION. The applicant listed for this patent is Hak Ki Choi, Sung Huan Gong, Tae Ho Ha, Hae Lyung Hwang. Invention is credited to Hak Ki Choi, Sung Huan Gong, Tae Ho Ha, Hae Lyung Hwang.
Application Number | 20130123763 13/608029 |
Document ID | / |
Family ID | 37713592 |
Filed Date | 2013-05-16 |
United States Patent
Application |
20130123763 |
Kind Code |
A1 |
Choi; Hak Ki ; et
al. |
May 16, 2013 |
CONTROL METHOD AND STRUCTURE OF LASER BEAM IRRADIATION BY USING A
CONTACT SENSOR
Abstract
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.
Inventors: |
Choi; Hak Ki; (Seoul,
KR) ; Ha; Tae Ho; (Gyeonggi-do, KR) ; Hwang;
Hae Lyung; (Gyeonggi-do, KR) ; Gong; Sung Huan;
(Seoul, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Choi; Hak Ki
Ha; Tae Ho
Hwang; Hae Lyung
Gong; Sung Huan |
Seoul
Gyeonggi-do
Gyeonggi-do
Seoul |
|
KR
KR
KR
KR |
|
|
Assignee: |
LUTRONIC CORPORATION
Gyeonggi-do
KR
|
Family ID: |
37713592 |
Appl. No.: |
13/608029 |
Filed: |
September 10, 2012 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
12294387 |
Oct 5, 2009 |
8262648 |
|
|
PCT/KR2006/001579 |
Apr 26, 2006 |
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13608029 |
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Current U.S.
Class: |
606/12 |
Current CPC
Class: |
A61B 2017/00022
20130101; A61B 2018/00452 20130101; A61B 2090/065 20160201; A61B
18/20 20130101; A61B 18/203 20130101 |
Class at
Publication: |
606/12 |
International
Class: |
A61B 18/20 20060101
A61B018/20 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 27, 2006 |
KR |
10-2006-0027384 |
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.
Description
TECHNICAL FIELD
[0001] 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 ART
[0002] Generally, 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.
[0003] Referring to FIG. 1, a conventional laser beam handpiece
comprises a laser fiber 12 made of sapphire to irradiate laser
beams, which are output from a laser beam output device (not
shown), in a handpiece body 10; a collimating lens 14 for
converting the laser beams irradiated from the laser fiber 12 into
collimated light; a reflector 16 for changing a beam path of the
laser beams output through the collimated lens 14; and a focusing
lens 18 for focusing the laser beams reflected by the reflector so
that the laser beams can be irradiated on a position. One of
contact sensors to be employed at this time is an electrically
operated contact sensor in which at least two electrodes 19
electrically insulated to each other are mounted at certain
portions on a handpiece tip (not shown) and a predetermined voltage
is applied between the electrodes. When the electrodes are in
contact with the skin, a certain electric current flows through the
skin. The electric current is measured to check a state where the
electrodes are in contact with the skin. Only when the handpiece
tip is in contact with the skin, a laser can be oscillated and
micro laser beams can be irradiated on the skin.
[0004] 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 Problem
[0005] Accordingly, 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 Solution
[0006] To 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.
[0007] 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.
[0008] 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 Effects
[0009] The present invention constructed as above has the following
advantages.
[0010] 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.
[0011] 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.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a sectional view showing the structure of a
conventional handpiece.
[0013] FIG. 2 is a schematic view showing a laser beam control
structure according to the present invention.
[0014] FIG. 3 is a schematic view showing the configuration of an
electrode unit of the laser beam control structure according to the
present invention.
[0015] FIG. 4 is a block diagram illustrating a laser beam control
method according to the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION
[0016] Hereinafter, a laser beam control structure of the present
invention will be described in detail with reference to the
accompanying drawings.
[0017] Referring to FIG. 2, the laser beam control structure
comprises a handpiece 100 for irradiating laser beams output from a
laser beam output device, on a predetermined part; at least one
electrode unit 110 positioned at a human body contact portion of
the handpiece 100 and receiving hum noise generated from a human
body; and a control unit 120 electrically connected to the
electrode unit 110 so as to measure the hum noise applied from the
electrode unit 110 and to cause the laser beams to be irradiated
according to the measured hum noise.
[0018] As shown in FIG. 3, the electrode unit 110 comprises four
electrodes 111, 112, 113 and 114 arranged at a predetermined
interval. The respective electrodes are constructed to come into
contact with the human body and to receive the hum noise generated
from the human body. Further, when all the four electrodes 111,
112, 113 and 114 are in contact with the human body, the handpiece
100 irradiates the laser beams, resulting in efficient skin
treatment.
[0019] 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.
[0020] Referring to FIG. 4, a laser beam control method comprises
the steps of measuring hum noise generated from a human body (S10);
checking a contact state between the electrode unit and a human
body (S40); and checking, based on the measured hum noise, whether
laser beams will be irradiated and irradiating the laser beams
(S50). It is preferred that between the measuring step S10 and the
human body contact state checking step S40, the laser beam control
method further comprise the steps of amplifying the measured hum
noise (S20), and converting the amplified hum noise into a digital
signal (S30).
[0021] 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.
[0022] 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.
[0023] 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.
* * * * *