WO2003028806A1 - Irradiateur laser - Google Patents
Irradiateur laser Download PDFInfo
- Publication number
- WO2003028806A1 WO2003028806A1 PCT/JP2002/009293 JP0209293W WO03028806A1 WO 2003028806 A1 WO2003028806 A1 WO 2003028806A1 JP 0209293 W JP0209293 W JP 0209293W WO 03028806 A1 WO03028806 A1 WO 03028806A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- output
- semiconductor laser
- laser diode
- laser
- laser light
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0616—Skin treatment other than tanning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/067—Radiation therapy using light using laser light
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/203—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser applying laser energy to the outside of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00137—Details of operation mode
- A61B2017/00154—Details of operation mode pulsed
- A61B2017/00181—Means for setting or varying the pulse energy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00452—Skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
- A61B2090/065—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension for measuring contact or contact pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0635—Radiation therapy using light characterised by the body area to be irradiated
- A61N2005/0643—Applicators, probes irradiating specific body areas in close proximity
- A61N2005/0644—Handheld applicators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/065—Light sources therefor
- A61N2005/0651—Diodes
Definitions
- the present invention relates to a laser beam irradiation device that irradiates a skin with laser beam to perform treatment such as beautiful skin and hair removal.
- Non-thermal reactions include photoelectric reactions, magneto-optical reactions, photodynamic reactions, photochemical reactions, photoimmune reactions, and photoenzymatic reactions. include.
- Non-thermal reactions have the effect of promoting blood circulation and metabolism, and are applied to treatments such as slimming and hair growth.
- photothermal reaction when the skin is irradiated with a laser beam, photothermal reaction generates Joule heat in the skin tissue and raises the temperature of the tissue.
- the photothermal reaction is used to decompose abnormal pigment cells such as aza, spots, and freckles into fine particles and remove them.Also, hair loss that causes protein denaturation in hair matrix cells and breaks down the hair regeneration mechanism It is applied to treats such as.
- the present invention provides a laser light irradiation apparatus capable of coping with both non-thermal reaction and photo-thermal reaction by switching the laser light output by increasing or decreasing the excitation current of the semiconductor laser diode. It is intended to provide Disclosure of the invention
- the present invention is configured as follows.
- the invention of claim 1 provides a semiconductor laser diode for irradiating a laser beam
- a switching switch for switching the output of the semiconductor laser diode is
- the laser light irradiation device When the switching switch is switched, the laser light irradiation device includes a control circuit for switching the output of laser light by increasing or decreasing the operating current of the semiconductor laser diode.
- the invention according to claim 2 is the laser beam irradiation apparatus according to claim 1, wherein the switching of the switching switch is performed in two levels.
- the invention according to claim 3 is the laser light irradiation apparatus according to claim 1, wherein the control circuit turns on and off the operating current of the semiconductor laser diode at a constant cycle to intermittently irradiate the laser light.
- the invention according to claim 4 is the laser beam irradiation device according to claim 3, wherein one irradiation time of the intermittent irradiation is set according to a rotation angle of a volume.
- FIG. 1 is an overall view of a laser beam irradiation apparatus embodying the present invention.
- FIG. 2 is a front view of an operation panel embodying the present invention.
- FIG. 3 illustrates the implementation of the present invention.
- FIG. 3 is a front view of the probe.
- FIG. 4 is a side view in which a part of FIG. 3 is cut away.
- FIG. 5 is a block diagram of a control circuit embodying the present invention.
- FIG. 6 is a block diagram of a drive circuit embodying the present invention.
- Figure 7 is a graph showing the relationship between the excitation current and the laser output.
- FIG. 1 shows an overall view of a laser beam irradiation apparatus embodying the present invention.
- a probe 30 is connected to a side surface of a main body 10 via a cable 20.
- the main body 10 has a built-in control circuit 40, a storage section 50 for the probe 30 and an operation panel 60 on the upper surface, and a lid 70 on the upper side.
- Figure 2 shows a front view of the operation panel.
- a power switch S1 On the operation panel 60, a power switch S1, an output switch S2, a standby state switch S3, and an irradiation time setting volume V1 are respectively arranged on the panel surface.
- a power LED L 1 of the LED, an output Lo lamp L 21, an output Hi lamp L 22, and a standby lamp L 3 are provided corresponding to each switch.
- the power switch S 1 turns the main unit 10 on and off.
- the power lamp L 1 turns on when turned on and turns off when turned off.
- the output switching switch S2 switches the laser output to Lo (for example, 1.0 W) or Hi (for example, 1.6 W).
- the output Lo lamp L21 turns on at Lo and turns off at Hi.
- the output Hi lamp L22 is turned on at Hi and turned off at Lo.
- Output switch S2 is activated when standby state switch S3 is off. Can be switched.
- the initial laser output when the power switch S1 is turned on is set to Lo.
- the standby state switching switch S3 switches the standby state of laser irradiation, and shifts to the standby state when turned on, and cancels the standby state when turned off.
- the standby status lamp L3 is turned on when turned on and turned off when turned off.
- the initial standby state when the power switch S1 is turned on is set to off.
- the standby state switching switch S3 When the standby state switching switch S3 is turned on, the timer count starts, and the standby mode is automatically set after a predetermined time (for example, 20 minutes) has elapsed regardless of whether or not the laser beam has been irradiated.
- the status switching switch S3 turns off.
- the irradiation time setting volume V1 sets the irradiation time for one intermittent irradiation by rotating the volume.
- Irradiation times range from 1 to 9 seconds, depending on the volume rotation angle.
- the irradiation time setting volume V1 can be rotated to set the irradiation time even when the standby state switching switch S3 is on.
- the initial irradiation time when the power switch S1 is turned on is determined by the rotation angle of the irradiation time setting volume V1 at that time.
- the time interval of the intermittent irradiation is set to a preset number of seconds (for example, 1.5 seconds).
- Figures 3 and 4 show a front view and a cutaway side view of the probe.
- the probe 30 has a head H protruding from the front and a push switch S 4 on the side.
- ventilation holes a and b are provided on the lower side and the rear side of the head portion H, respectively.
- the head H has an opening at the center, a ball lens 31 is inserted and fitted, and a front cylinder 32 whose tip is to be brought into contact with the skin is integrally attached to the outer periphery of the ball lens 31.
- a cylindrical electrode 33 whose tip projects forward from the opening end face is embedded at the tip of the tip cylinder 32.
- a heat sink 34 is attached to the rear of the spherical lens 31, a through hole is formed in the axis of the heat sink 34, and a semiconductor laser diode 35 is fitted in the back.
- a fan 36 for cooling the heat sink 34 is installed behind it.
- the spherical lens 31 condenses the laser beam of the semiconductor laser diode 35 and focuses on the opening end face of the front cylinder 32.
- the focal depth is slightly narrower. The optical power can be narrowed down to the range.
- the heat sink 34 spreads the heat generated during the operation of the semiconductor laser diode 35 by heat conduction, thereby suppressing a decrease in output.
- the semiconductor laser diode 35 directly excites a current by flowing a current through a PN junction diode using a compound semiconductor such as GaAs to obtain laser oscillation. In addition, it outputs laser light with a peak wavelength of 600 to 160 nm and an optical output of 5 mW to 3 W, and has good thermal efficiency and causes a sufficient photothermal reaction to the skin.
- FIG. 5 shows a block diagram of a control circuit of the laser beam irradiation device.
- the control circuit 40 includes a memory 42 and a timer circuit 43 in the CPU 41, and has an output switch S2 and a standby state switch on the input side of the I / O port 44.
- Switch S 4 a push switch S 4
- a rotation angle detection circuit 45 for detecting a rotation angle of the irradiation time setting volume V 1
- a touch sensor circuit 46 for detecting contact of the electrode 33 with a human body.
- a semiconductor laser diode on the output side.
- the touch sensor circuit 46 is composed of a high-frequency oscillation circuit and a switching circuit that turns the output on and off depending on the presence or absence of oscillation.
- the electrode 33 is connected to one end of the oscillation coil of the high-frequency oscillation circuit, and the output of the switching circuit is switched from on to off using the fact that the oscillation stops when the electrode 33 touches the human body.
- the touch sensor circuit 46 may be of a type that detects contact by a change in impedance such as capacitance or resistance, or a type that detects contact by a switch / piezoelectric element.
- Figure 6 shows a block diagram of the drive circuit.
- the drive circuit 47 supplies a reference signal for the CPU 41 to determine the output level of the semiconductor laser diode 35 according to the on / off state of the output switching switch S2 to the I / ⁇ ports 44 and D / A.
- the semiconductor laser diode 35 has a structure capable of extracting laser output from both sides of the element, one laser output is received by the photodiode 473 and the received voltage is amplified by the amplifier 474. Generate monitor voltage.
- the output of the semiconductor laser diode 35 can be switched between Lo and Hi.
- the CPU 41 also performs timer control for turning on and off the operating current of the drive circuit 47 in response to an interrupt from the timer circuit 43.
- one treatment time is set to turn the operating current on and off, and the treatment current is set, and one irradiation time for intermittent irradiation is set to turn the operating current on and off. There is an irradiation time control to be performed.
- the irradiation time of one intermittent irradiation is set by the rotation angle of the irradiation time setting volume V1.
- the power switch S1 of the main body 10 when performing treatment, first, the power switch S1 of the main body 10 is turned on.
- the irradiation time setting volume V1 is rotated to set the irradiation time for one intermittent irradiation.
- the standby state switching switch S2 is turned on to set the irradiation of the laser beam to the standby state.
- the semiconductor laser diode 35 lights up for the set number of seconds and then pauses for the specified number of seconds.
- the skin is irradiated with the laser light of Lo or Hi output switched by the output switching switch S2.
- the electrodes 33 are brought into contact with the skin and irradiated with the laser beam, and the trimming is performed while sequentially moving the positions.
- the laser beam irradiation device of the present invention switches the laser beam output by increasing or decreasing the operating current of the semiconductor laser diode.
- the switch is switched between high and low.
- the output of the laser beam can be switched in two stages in response to both the non-thermal reaction and the photothermal reaction. Will increase, and safer and more effective treatment will be possible.
- the operating current of the semiconductor laser diode is turned on / off at a constant cycle, and the laser light is intermittently irradiated.
- one irradiation time of intermittent irradiation is set according to the rotation angle of the volume.
- the energy density of the laser beam can be finely adjusted by adjusting the irradiation time in addition to the output, so that it is possible to cope with more various treatments.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Radiation-Therapy Devices (AREA)
- Laser Surgery Devices (AREA)
- Semiconductor Lasers (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002330379A AU2002330379B2 (en) | 2001-09-28 | 2002-09-11 | laser light irradiator |
EP02765499A EP1433498A4 (en) | 2001-09-28 | 2002-09-11 | LASER LIGHT IRRADIATION DEVICE |
US10/491,000 US7123636B2 (en) | 2001-09-28 | 2002-09-11 | Laser light irradiator |
CA002461169A CA2461169A1 (en) | 2001-09-28 | 2002-09-11 | Laser beam irradiation device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001303773A JP2003102855A (ja) | 2001-09-28 | 2001-09-28 | レーザ光照射装置 |
JP2001-303773 | 2001-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003028806A1 true WO2003028806A1 (fr) | 2003-04-10 |
Family
ID=19123810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/009293 WO2003028806A1 (fr) | 2001-09-28 | 2002-09-11 | Irradiateur laser |
Country Status (6)
Country | Link |
---|---|
US (1) | US7123636B2 (ja) |
EP (1) | EP1433498A4 (ja) |
JP (1) | JP2003102855A (ja) |
AU (1) | AU2002330379B2 (ja) |
CA (1) | CA2461169A1 (ja) |
WO (1) | WO2003028806A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003102853A (ja) * | 2001-09-28 | 2003-04-08 | Ya Man Ltd | レーザ光照射装置 |
KR20040076650A (ko) * | 2003-02-26 | 2004-09-03 | 삼성전자주식회사 | 광픽업 장치 |
JP4910318B2 (ja) * | 2005-07-05 | 2012-04-04 | ウシオ電機株式会社 | レーザ装置 |
US20080262484A1 (en) * | 2007-04-23 | 2008-10-23 | Nlight Photonics Corporation | Motion-controlled laser surface treatment apparatus |
US9474576B2 (en) * | 2007-10-05 | 2016-10-25 | The Research Foundation For The State University Of New York | Coherent imaging fiber based hair removal device |
US8269612B2 (en) * | 2008-07-10 | 2012-09-18 | Black & Decker Inc. | Communication protocol for remotely controlled laser devices |
US9908182B2 (en) | 2012-01-30 | 2018-03-06 | Black & Decker Inc. | Remote programming of a power tool |
EP2817066B1 (en) * | 2012-02-21 | 2019-04-03 | Bjarne Asah | A hand-held device for combined light and electrotherapy of a skin surface |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000202045A (ja) * | 1998-11-10 | 2000-07-25 | Ya Man Ltd | レ―ザ美肌装置 |
US6168589B1 (en) | 1998-04-03 | 2001-01-02 | Edward L. Tobinick | Apparatus and method employing a single laser for removal of hair |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2390968A1 (fr) * | 1977-05-16 | 1978-12-15 | Skovajsa Joseph | Dispositif de traitement local d'un patient, notamment pour acupuncture ou auriculotherapie |
AU595580B2 (en) * | 1986-06-30 | 1990-04-05 | Medical Laser Research Co., Ltd. | Semiconductor laser therapeutic apparatus |
JP2687544B2 (ja) * | 1989-02-01 | 1997-12-08 | 日本電気株式会社 | 光学的記録再生装置 |
US5272716A (en) * | 1991-10-15 | 1993-12-21 | Mcdonnell Douglas Corporation | Hand held laser apparatus |
JP3051590B2 (ja) * | 1993-03-05 | 2000-06-12 | 三菱重工業株式会社 | 吊荷の振れ止め装置 |
US6157661A (en) * | 1999-05-12 | 2000-12-05 | Laserphysics, Inc. | System for producing a pulsed, varied and modulated laser output |
JP2001252363A (ja) * | 2000-03-09 | 2001-09-18 | Ya Man Ltd | レーザ光照射プローブ |
US6558653B2 (en) * | 2001-09-19 | 2003-05-06 | Scot N. Andersen | Methods for treating periodontal disease |
-
2001
- 2001-09-28 JP JP2001303773A patent/JP2003102855A/ja not_active Withdrawn
-
2002
- 2002-09-11 US US10/491,000 patent/US7123636B2/en not_active Expired - Lifetime
- 2002-09-11 AU AU2002330379A patent/AU2002330379B2/en not_active Ceased
- 2002-09-11 WO PCT/JP2002/009293 patent/WO2003028806A1/ja active Application Filing
- 2002-09-11 CA CA002461169A patent/CA2461169A1/en not_active Abandoned
- 2002-09-11 EP EP02765499A patent/EP1433498A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6168589B1 (en) | 1998-04-03 | 2001-01-02 | Edward L. Tobinick | Apparatus and method employing a single laser for removal of hair |
JP2000202045A (ja) * | 1998-11-10 | 2000-07-25 | Ya Man Ltd | レ―ザ美肌装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1433498A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1433498A4 (en) | 2009-06-24 |
AU2002330379B8 (en) | 2003-04-14 |
US7123636B2 (en) | 2006-10-17 |
AU2002330379B2 (en) | 2007-10-25 |
EP1433498A1 (en) | 2004-06-30 |
CA2461169A1 (en) | 2003-04-10 |
US20040246999A1 (en) | 2004-12-09 |
JP2003102855A (ja) | 2003-04-08 |
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