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WO1993021993A1 - Laser a bas niveau pour le traitement de tissus mous - Google Patents

Laser a bas niveau pour le traitement de tissus mous Download PDF

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Publication number
WO1993021993A1
WO1993021993A1 PCT/US1993/004123 US9304123W WO9321993A1 WO 1993021993 A1 WO1993021993 A1 WO 1993021993A1 US 9304123 W US9304123 W US 9304123W WO 9321993 A1 WO9321993 A1 WO 9321993A1
Authority
WO
WIPO (PCT)
Prior art keywords
laser
housing
low level
stimulation
light energy
Prior art date
Application number
PCT/US1993/004123
Other languages
English (en)
Inventor
Kim Robin Segal
Original Assignee
Kim Robin Segal
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kim Robin Segal filed Critical Kim Robin Segal
Publication of WO1993021993A1 publication Critical patent/WO1993021993A1/fr

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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
    • A61B2018/2035—Beam shaping or redirecting; Optical components therefor
    • A61B2018/20351—Scanning mechanisms
    • 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
    • A61B2018/2035—Beam shaping or redirecting; Optical components therefor
    • A61B2018/204—Attenuators
    • 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
    • A61N2005/0635—Radiation therapy using light characterised by the body area to be irradiated
    • A61N2005/0643—Applicators, probes irradiating specific body areas in close proximity
    • A61N2005/0645—Applicators worn by the patient
    • 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 field of the is the use of low level laser energy for treating soft living tissue by stimulation.
  • U. S. Patent No. 5,050,597 teaches a laser thermotherapy apparatus which includes a laser splitter which branches laser energy from a laser source to either laser diodes or optical fibers.
  • U. S. Patent No. 5,024,236 teaches an electric probe for locating acupuncture points and a light emitting diode which are disposed in a relatively compact, easily portable assembly.
  • U. S. Patent No. 5,176,130 teaches a heated massage therapy device which has a hand-held housing, a mechanical vibration generator disposed within the housing. At least one source of infrared radiation is disposed within the housing.
  • U. S. Patent No. 3,648,706 teaches an irradiation device for thermotherapy which includes at least one series of light sources which are arranged one next to the other and intended to be placed over a portion of the human body.
  • the neodymium doped yttrium-aluminum-garnet (Nd:YAG) laser is also in widespread use.
  • the Nd:YAG laser has a predominant mode of operation at a wavelength of 1.064 microns in the near infrared region
  • the Nd:YAG optical emission is absorbed to a greater extent by blood than by water making it useful for coagulating large, bleeding vessels.
  • the Nd:YAG laser at 1.064 microns has been transmitted through endoscopes for treatment of a variety of gastrointestinal bleeding lesions, such as esophageal varices, peptic ulcers and arteriovenous anomalies.
  • Such application soft laser energy are thus well adapted where high energy thermal effects are desired, such as tissue vaporization, tissue cauterization, coagulation and as a surgical scalpel.
  • U. S. Patent No. 5,021,452 teaches a method of using a low power laser emitting light energy of a wavelength in the range of 600 to 1100 nanometers to irradiate a wound site.
  • biochemical events identified as responses to irradiation by light energy having a wavelength of 904 nanometers included increased ascorbic acid uptake by fibroblasts.
  • U. S. Patent No. 4,671,285 teaches a method of applying essentially monochromatic light having a non-traumatic power density to to the skin area adjacent to a specific peripheral nerve region of the body and for sufficient time so as to achieve a
  • SUBSTITUTE SHEET decrease in pain or a reduction in muscle spasms.
  • the inventor, Walker described her research in an article, published in The Clinical Journal of Pain. Volume 3, pages 183-187, 1988.
  • Human subjects received irradiation of the skin overlying peripheral nerves with a helium-neon laser at a power of 1 milliwatt, at a wavelength of 632.5 nanometers and at a pulse rate of 20 Hz) for 20 second to each treatment site. This treatment was accompanied by irradiation of the skin overlying painful facial areas for 30 to 90 second according to a predetermined protocol.
  • Control subjects received placebo treatment by an apparatus that looked identical to the laser apparatus but emitted no radiation. Laser or placebo therapy was repeated three times a week for ten weeks. Subjects in the experimental group exhibited a statistically significant reduction in the intensity of pain as measured by the visual analog scale and the number of painful episodes.
  • U. S. Patent No. 4,945,489 teaches a laser multiplexing system which is capable of time-sharing high-power laser output among a number of work stations.
  • the laser beam is directable in guick succession into the ends of various optical fibers leading to remote work stations.
  • the precise position of focus of the beam into each optical fiber is originally determined and continually monitored during the beam travel cycle for each work station.
  • U. S. Patent No. 4,917,084 and U. S. Patent No. 4,950,266 teach an infrared laser catheter system for use with laser energy produced by a laser operating in the mid-infrared region (approximately 2 microns) is delivered by an optical fiber in a catheter to a surgical site for biological tissue removal and repair.
  • Laser sources which have an output wavelength in this region include: holmium-doped yttrium aluminum garnet (Ho:YAG), holmium-doped yttrium lithium fluoride (Ho:YLF), holmium-doped yttrium-scandium-gadolinium- garnet (Ho:YSGG), erbium-doped YAG, erbium-doped YLF and thulium-doped YAG.
  • Laser output energy is applied to a silica-based optical fiber which has been specially purified to reduce the hydroxyl-ion concentration to a low level.
  • the catheter may include a single optical fiber or a plurality of optical fibers arranged to give overlapping output patterns for large
  • the lasers are operated with relatively long pulses at energy levels of approximately one joule per pulse.
  • the lasers are operated in a continuous wave mode at low power.
  • the Holmium-doped laser operating in the wavelength range of from about 1.9 to about 2.1 microns is preferred.
  • the threshold energy density should be greater than about 0.6 joule/cubic millimeter per pulse, and that the pulse width should be substantially less than about 83 milliseconds, and that the repetition rate should be in the range of from about 1 to about 10 Hertz.
  • TJ. S. Patent No. 4,925,265 teaches an apparatus which mechanically shifts a collimated beam of light energy from a laser into one optical fiber at a time in a bundle or an array of a plurality of optical fibers.
  • the apparatus includes a connector member having a plurality of passages extending longitudinally therethrough, the passages being disposed in a nominal common plane.
  • the input end of each optical fiber extends through a respective passage, with the axes of the input ends spaced closely together and oriented parallel to the axis of a laser beam directed toward the input ends.
  • the collimated beam of light energy passes through a positive lens having a focal plane coincident with the input ends of an optical fiber.
  • An axially translatable shaft extends generally perpendicular to the nominal plane and to the beam axis and is coupled to a drive mechanism to shift the axial position of the shaft selectively, rapidly, and reiteratively.
  • SUBSTITUTESHEET U. S. Patent No. 4,927,226 teaches an apparatus for multiplexing a coherent high power continuous-wave laser beam which has a mirror mounted on a galvanometer to interrupt the laser beam and another mirror mounted on another galvanometer to deflect the laser beam to a selected pair of optical fibers. The other mirror is moved only when the laser beam is interrupted to avoid fiber damage. Yet another mirror mounted on a galvanometer can be used to provide a greater number of addressable fibers.
  • a method of multiplexing comprises interrupting a laser beam, deflecting it, changing its direction only when interrupted, focussing it, and transmitting it through the optical fibers.
  • U. S. Patent No. 4,836,203 teaches a device for therapeutical irradiation of organic tissue by laser radiation which includes a first laser, a second laser, a mirror system and an optical system.
  • the first laser is a helium-neon laser and emits on a wavelength of 633 nanometers.
  • the second laser has a continuous-wave operation and emits light energy which has a wavelength in the range of 800 to 870 nanometers, preferably 840 nanometers.
  • the optical system serves -to widen the beams of the first and second lasers which
  • the optical system allows continuous adjustment of the size of the field irradiated up to a maximum diameter of the order of 30 millimeters.
  • the mirror system includes an outer mirror rotatable around two axes for positioning the irradiation field for beam switching between the first and second lasers and the beam outlet opening of the device.
  • S. Patent No. 4,686,986 teaches an apparatus for the stimulation of biological processes related to cellular activity, particularly for promoting the healing of wounds, ulcers and epithelial injuries.
  • the lesion is irradiated with linearly polarized light of predetermined intensity, comprising incoherent components of wavelength, exceeding 300 nanometers.
  • the apparatus includes a light source, constituted by a lamp emitting incoherent visible and/or infrared light, a deflecting system projecting the light beams into the given direction of treatment, a polarizer placed in the path of the light beam, projected into the direction of treatment, and preferably ultraviolet and infrared filters.
  • the present invention is generally directed to an apparatus for treating living tissue by stimulation with low level light energy includes a laser, an optical fiber optically coupled to the laser and a controller.
  • the controller is electricaly coupled to the laser.
  • SUBSTITUTE SHEET scanner is optically to the optical fiber so that the output of light energy from the laser to an area of skin is externally located adjacent to a tissue to be treated.
  • the controller is electricaly coupled to the scanner.
  • the scanner includes a housing, an x-axis servo mechanism, an y-axis servo mechanism and an z-axis servo mechanism.
  • the x-axis servo mechanis , the y- axis servo mechanism, the z-axis servo mechanism are coupled to the housing.
  • Fig. 1 is a schematic drawing of an apparatus for treating soft living tissue by stimulation with low level laser energy which includes a laser, an output coupler, four stationary probes, an ohmmeter and two conductive members.
  • Fig. 2 is a perspective view of one of the four stationary probes with one of the two conductive
  • Fig. 3 is an elevational view in cross- section of the stationary probe and the conductive member of Fig. 3.
  • Fig. 4 is a schematic view of the laser and the output coupler of Fig. 1.
  • Fig. 5 is a perspective view of a holder for use with each of the four probes of Fig. 1.
  • Fig. 6 is an elevational view of a combination of the stationary probe with the conductive member of Fig. 3 and the holder of Fig. 5 in cross- section.
  • Fig. 7 is a schematic drawing of a belt holding two combinations of the stationary probe with the conductive member and the holder of Fig. 6 to a patient's back.
  • Fig. 8 is an elevational view of four connectors holding together the four combinations of the stationary probe with the conductive member and the holder of Fig. 6 in order to treat either a patient's wrist or any other similar joint, including his knee and his elbow joint.
  • Fig. 9 is a partial elevational view of the four connectors holding together the four combinations of the stationary probe with the conductive member of Fig. 3 and the holder of Fig. 5.
  • Fig. 10 is a schematic drawing of a belt
  • Fig. 11 is a perspective view of an apparatus for treating soft living tissue by stimulation with low level laser energy which includes a laser system, a scanner and a servo system and which is treating a patient's shoulder in accordance with the principles of the present invention.
  • Fig. 12 is a perspective view of the apparatus of Fig. 11 which is treating a patient's wrist.
  • Fig. 13 is a schematic drawing of the apparatus of Fig. 11.
  • Fig. 14 is a perspective view of the servo system of the apparatus of Fig. 11.
  • Fig. 15 is a front elevational view in cross- section of the scanner of the apparatus of Fig. 11.
  • Fig. 16 is a side elevational view of the scanner of the apparatus of Fig. 11.
  • an apparatus 10 includes a laser 11, a first stationary probe 12 which has a first housing 13 and a first lens system 14 for treating living tissue by stimulation with low level light energy.
  • the laser 11 generates an output of light energy at a wavelength in the range of the near infrared region of the electromagnetic spectrum.
  • the laser 11 may be either a Nd:YAG laser or a laser diode.
  • the laser 11 produces 100 to 800 milliwatts in either a pulsed mode or a continuous mode.
  • the first lens system 14 is disposed in the first housing 13 and optically couples the laser 11 to a first area of skin which is externally located adjacent to the tissue to be treated.
  • the apparatus 10 also includes an ohmmeter ⁇ 5, a first conductive member 16, a second conductive member 17.
  • the first conductive member 15 is mechanically coupled to the first housing 13 and. is disposed contiguous and adjacent to the first area of skin.
  • the second conductive member 11- is disposed contiguous and adjacent to a second area of skin, which is oppositely disposed from the first area of skin.
  • the first and second conductive members 16 and 17 are electrically coupled to the first area of skin, respectively.
  • the ohmmeter 15 has a first terminal 18 and a second terminal 19.
  • the first and second terminals 18 and 19 are electrically coupled to the first and second conductive members 16 and 17 so that the ohmmeter 15 is monitored during treatment in order that the effective- ness of the treatment may be monitored by observing the change in conductivity of the treated tissue.
  • the apparatus 10 further includes a second housing 20, a second lens system 21, a third housing 22, a third lens system 23, a fourth housing 24 and a fourth lens system 25.
  • the second lens system 21 is disposed in the second housing 20 and optically couples the output of light energy from the laser 11 to a second area of skin which is oppositely disposed from the first area of skin.
  • the second conductive member 17 is mechanically
  • SUBSTITUTESHEET coupled to the second housing 20 and is disposed contiguous and adjacent to a second area of skin.
  • the third lens system 23 is disposed in the third housing 22 and optically couples the output of light energy from the laser 11 to a third area of skin which is externally located adjacent to the tissue to be treated.
  • the fourth lens system 25 is disposed in the fourth housing 24 and optically couples the output of light energy from the laser 11 to a fourth area of skin which is oppositely disposed from the third area of skin.
  • the apparatus still further includes a power supply 26, a timer 27, an output coupler 28 which has a single optical input 29 and four optical output 30, four optical shutters 31 and a controller 32.
  • the power suppy 26 is electrically coupled to the laser 11.
  • the timer 27 is electrically coupled to the power suppy 26 and controls the power supply 26.
  • the single optical input 29 of the output coupler 28 is mechanically and optically coupled to the laser 11 by an optical fiber 33.
  • Each of the four optical output 30 of the output coupler 28 is mechanically and optically coupled to one of the four optical shutters 31 by one of four optical fibers 34.
  • ⁇ . S. Patent No. 4,950,266 teaches an output coupler for an infrared laser system.
  • Each of the first, second, third and fourth lens systems 14, 21, 23 and 25 is mechanically and optically coupled to one of the four optical shutters 31 by one of four optical fibers 35.
  • the controller 32 is electrically coupled to each of the four optical shutters 31.
  • each stationary probe 40 is formed by a housing 41 and a lens system 42.
  • the lens system includes a defocusing lens 43 and a cover lens 44.
  • the housing 41 is hollow and has a cylindrical portion 45 and a truncated-conical portion 46.
  • the defocusing lens 43 is disposed in the cylindrical portion 45.
  • the cover lens 44 is disposed in the truncated- conical portion 46.
  • a cylindrical member 47 secures the defocusing lens 43 against a ledge 48 within the cylindrical portion of the housing 41.
  • a face-ring 49 secures the cover lens 44 in place.
  • the apparatus 10 may also include a holder 50 for use in holding the probe in place.
  • the holder 50 has a first sheet 51 and a second sheet 52.
  • the first sheet 51 has a hole 53 which may be aligned with the cover lens 44.
  • the second sheet 52 has a U-shaped hole 53 so that when the first and second sheets 51 and 52 are joined together they form the holder 50 for the probe 40.
  • the holder 50 has a pair of slots 55 in which either a belt 56 or a strap may be inserted for forming a hinge.
  • the belt 56 holds two probes 40 to a patient's back.
  • FIG. 8 in conjunction with Fig. 7, Fig. 9 and Fig. 10 four fastening straps 61 connects together four probes 40 in order to treat either a patient's wrist or any other similar joint, including his knee, his elbow joint.
  • the belt 56 connects together three probes 40 in order to treat a patient's shoulder.
  • the inventor has used a Nd:YAG laser operating at a fundamental wavelength of 1.064 microns and at an output power level in the range of 100 to 800 milliwatts to generate light energy. This light energy
  • T is applied to regions of the body which reguire a decrease in muscle spasm, increased circulation, decrease in pain or enhanced tissue healing.
  • the area of skin is demarcated and the tissue to be is irradiated with a beam of this light energy in a grid fashion for the amount of time and intensity necessary to produce the desired therapeutic effect, with the energy density of the irradiated tissue being limited to the range of from about 1 to about 15 joules per cubic centimeter.
  • the intensity and duration of treatment is determined by the character of the tissue to be treated, the depth of penetration desired, the acuteness of the injury and the condition of the patient.
  • the inventor has demonstrated therapeutic treatment by a low level reactive laser system for the purposes of reducing pain, reducing inflammation, and enhancing healing of damaged tissue by stimulation of microcirculation, all being successfully accomplished without producing damaging thermal effects in the tissue.
  • the Nd:YAG laser had an adjustable output beam of light energy at a power of 100 to 800 milliwatts.
  • the Nd:YAG laser was capable of operation in a pulsed or continuous mode. The output was controlled by an exposure timer in the range of 0.1 to 9.9 minutes.
  • the pulse on-time was adjustable from 0.1 to 9.9 seconds in 0.1 second intervals.
  • the pulse off-time was also adjustable from 0.1 to 9.9 seconds in 0.1 second intervals.
  • the therapeutic beam output of light energy was directed by a helium-neon laser beam, having an output of less than 1 milliwatt because the beam of light energy from the Nd:YAG is invisible.
  • the visible light energy from the helium-neon laser beam is in the
  • SUBSTITUTESHEET red portion of the electromagnetic spectrum at 633 nanometers. Both beams of light energy are precisely aligned and are coincident upon impact at the tissue site.
  • the method for delivering the beams of light energy to the target sight is a flexible quartz fiber and either a focusing handpiece or a stationary probe 40.
  • Light passing through the attenuator is focused through a pair of 90 millimeter focal length lenses onto the proximal end of an optical fiber cable.
  • the main beam attenuator is a shutter placed outside the laser head between the output coupler of the laser and the beam steering mirror. It includes four components: a 90 degree reflecting prism, a shutter arm, a shutter mounting bracket and an actuating solenoid.
  • the prism is mounted to the shutter arm so that, in the normally closed position the prism intercepts the laser beam and reflects it downwardly into a beam dump in the laser deck.
  • the solenoid is energized when an output channel has been selected and the foot pedal is depressed, which causes the shutter arm to raise and allows the beam to pass.
  • the solenoid arm is de-energized, the shutter drops into the closed position.
  • the laser system is obtained from Melles Griot and includes a helium-neon aiming laser, Model 05LHR007, and a Nd:YAG laser, Model 607C, which
  • 1 V is provided with an optical fiber guide and a coupler for directing the beam of optical energy to the tissue to be treated.
  • the beam of light energy from the Nd:YAG laser is controlled and applied to produce a
  • SUBSTITUTE SHEET minimum absorption rate in the irradiated tissue which will elevate the average temperature of the irradiated tissue to a level above the basal body temperature, but which does not exceed the maximum absorption rate which is great enough to convert the irradiated tissue into a collagenous substance.
  • the inventor has determined through extensive testing that the foregoing condition is satisfied by the Nd:YAG laser operated at a power output level of from 100 to 800 milliwatts, with the laser beam being focused to produce an energy density of the projected laser beam in the range of from about 1.0 to about 15 joules per square centimeter. Since the beam of light energy is coherent, a variable power density of the light was obtained by converging the laser beam into small treatment areas, for example, from about 0.5 to about 2 square millimeters at each grid treatment point.
  • the inventor observed certain physiological mechanisms in the tissue and at the cellular level when she used the above process.
  • she has demonstrated that the blood vessel walls possess photosensitivity.
  • the tonus is inhibited in smooth myoctyes, thus increasing the blood flow in the capillaries.
  • Analgesia of the tissue has been observed in connection with a complex series of actions at the tissue level. At the local level, there is a reduction of inflammation, causing a reabsorption of exudates. Enkephalins and endorphins are recruited to modulate the pain production both at the spinal cord level and in the brain. The serotnogenic pathway is also recruited. While it is not completely understood, it is believed that the irradiation of the tissue causes the return of an energy balance at the cellular level which is the reason for the reduction of pain.
  • 60 for treating living tissue by stimulation with low level light energy includes a laser 61, an optical fiber 62, a scanner 63 and a controller 64.
  • the laser is a laser 61, an optical fiber 62, a scanner 63 and a controller 64.
  • the optical fiber 62 is optically coupled to the laser 61.
  • the scanner 63 includes a housing 65, an x-axis servo mechanism 66, a y-axis servo mechanism 67 and a z-axis servo mechanism 68,
  • the x-axis servo mechanism 66, the y-axis servo mechanism 67 and the z-axis servo mechanism 68 are coupled to the housing 65 and are controlled by the controller 64.
  • the scanner 63 is optically to the optical fiber 62 so that the output of light energy from the laser 61 to an area of skin is externally located adjacent to a tissue to be treated.
  • the controller 64 is electricaly coupled to the scanner 63 and the laser 61.

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  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

Un dispositif permettant de traiter des tissus vivants par stimulation à l'aide d'énergie lumineuse à bas niveau comprend un laser (61), une fibre optique (62), un scanner (63) et une unité de commande (64). Le laser (11) produit une sortie d'énergie lumineuse. La fibre optique (62) est couplée optiquement au laser. Le scanner (63) comprend un boîtier (65), un servomécanisme pour l'axe des x (66), un servomécanisme pour l'axe des y (67) et un servomécanisme pour l'axe des z (68). Le servomécanisme pour l'axe des x (66), le servomécanisme pour l'axe des y (67) et le servomécanisme pour l'axe des z (68) sont couplés au boîtier (65) et sont commandés par l'unité de commande (64). Le scanner (63) est couplé optiquement à la fibre optique (62) de manière que la sortie d'énergie lumineuse provenant du laser (61) pour atteindre une région de la peau se trouve au voisinage du tissu à traiter. L'unité de commande (64) est couplée électriquement au scanner (63) et au laser (61).
PCT/US1993/004123 1992-04-24 1993-04-26 Laser a bas niveau pour le traitement de tissus mous WO1993021993A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US87338592A 1992-04-24 1992-04-24
US07/873,385 1992-04-24
US4766793A 1993-04-14 1993-04-14
US08/047,667 1993-04-14

Publications (1)

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WO1993021993A1 true WO1993021993A1 (fr) 1993-11-11

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997028752A1 (fr) * 1996-02-06 1997-08-14 Gary Lewis Jones Dispositif et procede d'epilation au laser
EP0900107A2 (fr) * 1996-03-25 1999-03-10 SEGAL, Kim Robin Systeme d'irradiation par laser a diode pour la stimulation de tissus biologiques
US6267779B1 (en) 1999-03-29 2001-07-31 Medelaser, Llc Method and apparatus for therapeutic laser treatment
WO2007047892A1 (fr) * 2005-10-20 2007-04-26 Light Sciences Oncology, Inc. Systèmes portables externes de traitement de luminothérapie
WO2007124021A3 (fr) * 2006-04-20 2008-03-20 Therapy Products Inc Laser à balayage de traitement à spot balayant et chariot universel
US7922751B2 (en) 2004-02-04 2011-04-12 Erchonia Corporation Stand-alone scanning laser device
EP2311525A1 (fr) * 2009-10-13 2011-04-20 Christoph Bolt Dispositif d'exécution d'une hyperthermie médicale sélective
US7993382B2 (en) 2004-02-06 2011-08-09 Erchonia Corporation Fat reduction using external laser radiation and niacin

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US4252130A (en) * 1974-10-29 1981-02-24 Agence Nationale De Valorisation De La Recherche Method and apparatus for monitoring the congelation of a biological body
US4538608A (en) * 1984-03-23 1985-09-03 Esperance Jr Francis A L Method and apparatus for removing cataractous lens tissue by laser radiation
US4930504A (en) * 1987-11-13 1990-06-05 Diamantopoulos Costas A Device for biostimulation of tissue and method for treatment of tissue
US5050597A (en) * 1987-03-05 1991-09-24 S.L.T. Japan Co., Ltd. Laser irradiation system for thermotherapy

Patent Citations (4)

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US5050597A (en) * 1987-03-05 1991-09-24 S.L.T. Japan Co., Ltd. Laser irradiation system for thermotherapy
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WO1997028752A1 (fr) * 1996-02-06 1997-08-14 Gary Lewis Jones Dispositif et procede d'epilation au laser
EP0900107A2 (fr) * 1996-03-25 1999-03-10 SEGAL, Kim Robin Systeme d'irradiation par laser a diode pour la stimulation de tissus biologiques
EP0900107A4 (fr) * 1996-03-25 2004-04-07 Inc Laserstim Systeme d'irradiation par laser a diode pour la stimulation de tissus biologiques
US6267779B1 (en) 1999-03-29 2001-07-31 Medelaser, Llc Method and apparatus for therapeutic laser treatment
US7922751B2 (en) 2004-02-04 2011-04-12 Erchonia Corporation Stand-alone scanning laser device
US7947067B2 (en) 2004-02-04 2011-05-24 Erchonia Corporation Scanning treatment laser with sweep beam spot and universal carriage
US7993382B2 (en) 2004-02-06 2011-08-09 Erchonia Corporation Fat reduction using external laser radiation and niacin
WO2007047892A1 (fr) * 2005-10-20 2007-04-26 Light Sciences Oncology, Inc. Systèmes portables externes de traitement de luminothérapie
WO2007124021A3 (fr) * 2006-04-20 2008-03-20 Therapy Products Inc Laser à balayage de traitement à spot balayant et chariot universel
EP2311525A1 (fr) * 2009-10-13 2011-04-20 Christoph Bolt Dispositif d'exécution d'une hyperthermie médicale sélective

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