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WO2008017101A1 - Dispositif pour la photothérapie - Google Patents

Dispositif pour la photothérapie Download PDF

Info

Publication number
WO2008017101A1
WO2008017101A1 PCT/AU2007/001041 AU2007001041W WO2008017101A1 WO 2008017101 A1 WO2008017101 A1 WO 2008017101A1 AU 2007001041 W AU2007001041 W AU 2007001041W WO 2008017101 A1 WO2008017101 A1 WO 2008017101A1
Authority
WO
WIPO (PCT)
Prior art keywords
phototherapy device
radiation
phototherapy
radiation source
face
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/AU2007/001041
Other languages
English (en)
Inventor
Nick Balgowan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOTAL CONTROL Pty Ltd
Original Assignee
TOTAL CONTROL Pty Ltd
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
Priority claimed from AU2006100682A external-priority patent/AU2006100682A4/en
Priority claimed from GB0618619A external-priority patent/GB0618619D0/en
Priority claimed from AU2007903441A external-priority patent/AU2007903441A0/en
Application filed by TOTAL CONTROL Pty Ltd filed Critical TOTAL CONTROL Pty Ltd
Publication of WO2008017101A1 publication Critical patent/WO2008017101A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00057—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
    • A61B2018/00988—Means for storing information, e.g. calibration constants, or for preventing excessive use, e.g. usage, service life counter
    • 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
    • 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
    • A61N2005/0654—Lamps
    • 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
    • A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
    • A61N2005/0661—Radiation therapy using light characterised by the wavelength of light used ultraviolet

Definitions

  • the present invention relates to phototherapy treatment devices and in particular a controller for such devices.
  • phototherapy device shall be taken as including, but is not limited to, a device that emits radiation onto a surface such as IR, UV, laser, microwave, x-ray, gamma, beta and ultrasonic radiations.
  • phototherapy devices whilst providing benefit when used in the correct manner, have the capacity to cause damage to an operator of the device and/or other persons in the vicinity of its operation and/or the patient receiving treatment, via accidental or over-exposure to the emitted radiation.
  • a phototherapy device having a face:
  • the device having a controller comprising a switching means, a transmitter capable of emitting a second form of radiation and receiver capable of receiving the second form of radiation when reflected from the surface, said controller operatively coupled to said radiation source through the switching means;
  • said switching means is adapted to activate said radiation source wherein upon the receiver receiving a characteristic of the second radiation signal indicative of a desired range of spacings of the face from said surface and to deactivate the radiation source when the characteristic of the second radiation signal is indicative of a spacing outside the desired range of spacings.
  • said transmitter transmits modulated light of a fixed range of wavelengths.
  • the modulated light comprises a single wavelength.
  • the transmitter comprises a laser.
  • the transmitter is associated with a collimator.
  • the modulated light is in the visible spectrum. According to an alternative embodiment the modulated light is in the non-visible spectrum. According to a preferred feature of the invention, said receiver includes an amplifier filter and a band pass filter for filtering said modulated light.
  • said controller further comprises a timer means, wherein said radiation source is activated for a period of time and wherein the length of the period of time can be varied.
  • said timer means is associated with sensor which is capable of sensing the nature of the surface, the sensor associated with a processor which is capable of determining the desired period according the nature of the surface and the nature of phototherapy to be applied to the surface.
  • said phototherapy device further comprises a spacer associated with the said face said spacer in use being intended to engage the surface and maintain the face a minimum distance from the surface.
  • said spacer is detachable from the face.
  • said controller includes a memory means which is capable of maintaining a log representative of the history of usage of said phototherapy device.
  • the log is also representative of at least some of the particulars of each treatment.
  • said phototherapy device further includes a portable power source.
  • said portable power source includes a low voltage DC to high voltage AC inverter for activating said radiation source.
  • said controller includes a communications means to communicate with an external controller.
  • said radiation source comprises a laser; and said controller includes a laser modulator, for varying the output strength of said laser.
  • Figure 1 is a bottom perspective view of a phototherapy device according to an embodiment of the invention.
  • FIG. 2 is a lower perspective view of the phototherapy device of Figure 1, with the casing removed;
  • FIG 3 is an upper perspective view of the phototherapy device of Figure 1, with the casing removed;
  • Figure 4 is a lower perspective view of the phototherapy device of Figure 1;
  • Figure 5 is a side elevation of the phototherapy device of Figure 1, with the casing removed;
  • Figure 6 is a lower perspective view of the phototherapy device of Figure 1 , with the spacer removed;
  • Figure 7 is an upper perspective view of the phototherapy device of Figure 1;
  • Figure 8 is a lower perspective view of the phototherapy device of Figure 1.
  • the first embodiment as shown in the accompanying drawings comprises a phototherapy device 10 having a face 12 including a radiation source in the form of a UV lamp 14, and a controller 15 including a switching means 16.
  • the phototherapy device 10 according to the embodiment is used for treating the surface of a patient via the UV lamp 14.
  • the radiation source could alternatively be one or more laser emission diodes, or any other suitable source.
  • the surface of the patient may be, for example, skin, tissues, organs or cells.
  • the phototherapy device 10 has a handle 18.
  • the handle 18 is to enable a user to be able to conveniently grip the device 10 to effect its operation.
  • the handle 18 accommodates a portable power source 19 comprising a storage battery.
  • the portable power source 19 is used to power the components of the device 10.
  • the portable power source 19 is associated with a recharge connector 20 is provided at the base of the handle 18 to facilitate recharging of the portable power source, as would be known to a person skilled in the art.
  • the UV Lamp 14 requires a specific AC voltage to operate, but to activate and begin emitting light, a much higher voltage is required until the UV Lamp 14 activates.
  • a heater in the lamp base is used to help the starting process, for example, a ballast, heater and starter is normally used in standard fluorescent lighting applications.
  • a means for generating a much higher voltage is required to drive the UV Lamp 14.
  • a low voltage DC to high voltage AC inverter is provided to activate the UV Lamp 14.
  • the inverter generates a very high voltage when only a small load is present on the output, but a lower voltage when the load gets larger.
  • the initial high voltage presented to the UV Lamp 14 from the inverter enables a relatively fast start up time, and the much higher frequency of operation of the inverter (25 ⁇ 30kHz as compared to mains frequency operation of 50 ⁇ 60Hz) improves the efficiency of the UV Lamp 14.
  • the UV Lamp 14 is used to project a first form of radiation onto the surface of a patent via a face of the device 10 to effect the desired phototherapy.
  • the UV lamp 14 is housed in the device 10, and is preferably a Narrow Band UVB lamp. It could also be any other suitable radiation source or UV lamp, including for example a Wide Band UVB, UVA, UVA or LASER lamp.
  • a PhilipsTM PL-S 9W/01/2P bulb can be utilised as a Narrow Band UVB radiation source, a PhilipsTM PL-S 9W/10/2P bulb as a UVA radiation source, or a PhilipsTM PL-S 9W/12 bulb as a Wide Band UVB radiation source.
  • the suitability of a particular bulb will be dependent on the nature of phototherapy being applied to the patient treated.
  • the controller 15 has a switching means 16 (as shown at to Figure 9) which is used to switch the UV lamp 14 to an on or off state.
  • the controller further comprises a transmitter for emitting a second form of radiation and which comprises a modulated LED 22.
  • the LED 22 is modulated in a manner as determined by the controller 15.
  • the LED 22 is positioned and is associated with a collimator and/or light guide such that the resultant light beam emitted by the LED 22 is directed at a specific angle from the face of the device.
  • the controller further comprises a receiver means in the form of a photo detector 28, (see Figure 9).
  • the photo detector 28 is spaced at a predetermined distance across from the LED 22 at a corresponding opposite angle at 30.
  • the LED 22 and photo detector 28 are isolated from one another by the light guide 26, the sides of which are opaque.
  • the LED 22 When a surface (eg the skin of a patient) is at a specified distance from the face of the device 10 some light form the LED 22 will be reflected from the surface back towards the face. When the detector is at a predetermined distance from the surface the reflected light will be incident upon the photo detector 28. The predetermined distance is determined by angle of the light beam emitted from the LED 22 and the angle of the photo detector 28 and the distance between the LED 22 and photo detector 28. The modulation pattern of the light emitted from the LED 22 is amplified and filtered by the photo detector 28 in order to remove extraneous noise.
  • the photo detector 28 is operatively connected to the switching means 16 by suitable circuitry in order that the switching means will only activate the UV Lamp 14 on the photo detector 28 sensing the receipt of reflected light form the surface.
  • the circuitry associated with the switching means performs a sequence of algorithmic steps, as would be known to a person skilled in the art, to determine that the light incident on the photo detector is the reflected light from the surface which is derived from the LED 28.
  • the switching means 16 if enabled by the circuitry, then activates the UV Lamp 14.
  • the controller is further provided with a timer means in the form of a programmable timer.
  • the controller includes a control keypad 32 of the type known to a person skilled in the art which enables a user to provide input to the controller 15 to set the operating parameters for a particular treatment activity (e.g. time of exposure).
  • the controller further includes a visual output for the user which is provided by an LCD display 34, of the type known to a person skilled in the art.
  • Further indicator means which are representative of the functioning state of the are provided in the form of four LED indicator-lights 36 to one side of the LCD display 34.
  • the user can use the programmable timer to limit the amount of time that the UV Lamp 14 remains in an active state. This may be a time limit as determined by the user. Provision is also made for the user to identify a patient by a patient identification number or name, select the skin-type of the patient, and the type of treatment. The controller 15 is then adapted to calculate the optimum exposure time based on these inputs.
  • skin-types may be categorised as follows:
  • the exposure time is adjusted to account for the sensitivity of the skin type selected, and/or the illness or ailment being treated.
  • the user inputs that the treatment should begin, at which point the controller 15 allows the switching means 16 to turn on the UV Lamp 14, if a correct signal is detected. Once the time limit has expired, the controller 15 causes the switching means 16 to adopt an inactive state, thereby deactivating the lamp 14.
  • the controller 15 includes a memory means that maintains a log representative of the history of usage of the UV Lamp 14.
  • the controller also includes a clock, enabling the time and date to be included in the history of usage. This includes usage delineated by the particulars about the patient (e.g. identification number). Accordingly, usage for a particular patient can be tracked and monitored over time.
  • the device 10 can be connected to a computer via a communications means in the form of a data port 37, for the purpose of programming the device 10, upgrading the software of the device 10, or downloading the log.
  • the device has a spacer 38 extending from a face 12 to engage the surface of the patient and maintain the face 12 a minimum distance from the surface of the patient.
  • the face 12 of the device 10 is a made from transparent plastic.
  • the spacer 38 is configured to slide onto the device 10, and may be detached by sliding the spacer 38 relative to the device 10.
  • a plurality of spacers 38 may be provided, to enable the user to vary the minimum distance between the surface and the face 12, as required.
  • the LED 22 of the first embodiment is modulated by an external oscillator.
  • the radiation source is a laser.
  • the controller further includes a laser modulator.
  • the laser modulator can effectively vary the output power of the Laser Diodes by controlling the percentage of time the laser is turned on. For example, if a 2OmW Laser is turned on for 10OuS and subsequently off for 90OuS in a repeating pattern, the effective output power of the laser will be 2mW.
  • the controller can control the laser power output up to the maximum rated output of the laser diode itself. This enables the controller to limit the laser output according to relevant occupational health and safety requirements.

Landscapes

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

Abstract

L'invention concerne un dispositif pour la photothérapie possédant une face associée à une source de radiation pour la projection d'une première forme de radiation depuis ladite face vers la surface d'un patient, le dispositif comportant un dispositif de commande comprenant des moyens de commutation, un émetteur pouvant émettre une seconde forme de radiation et un récepteur capable de recevoir la seconde forme de radiation lorsqu'elle est réfléchie par la surface du patient, le dispositif de commande étant couplé de manière fonctionnelle à la source de radiation par les moyens de commutation, lesdits moyens de commutation étant conçus pour activer la source de radiation lorsque le récepteur reçoit une valeur caractéristique du signal de la seconde radiation indiquant une plage recherchée de distances entre ladite face et la surface du patient et pour provoquer l'arrêt de la source de radiation lorsque les caractéristiques du signal de la seconde radiation indiquent une distance située hors de la plage de distances souhaitée.
PCT/AU2007/001041 2006-08-09 2007-07-26 Dispositif pour la photothérapie Ceased WO2008017101A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
AU2006100682A AU2006100682A4 (en) 2006-08-09 2006-08-09 Phototherapy and medical apparatus with proximity detector and changable functional modules and LCD display.
AU2006100682 2006-08-09
GB0618619.1 2006-09-22
GB0618619A GB0618619D0 (en) 2006-09-22 2006-09-22 Proximity lamp
US84723106P 2006-09-27 2006-09-27
US60/847,231 2006-09-27
AU2007903441 2007-06-26
AU2007903441A AU2007903441A0 (en) 2007-06-26 A Phototherapy Device

Publications (1)

Publication Number Publication Date
WO2008017101A1 true WO2008017101A1 (fr) 2008-02-14

Family

ID=39032531

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2007/001041 Ceased WO2008017101A1 (fr) 2006-08-09 2007-07-26 Dispositif pour la photothérapie

Country Status (1)

Country Link
WO (1) WO2008017101A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8481982B2 (en) 2009-08-17 2013-07-09 Scot L Johnson Energy emitting treatment device
DE102020122455A1 (de) 2020-08-27 2022-03-03 Dr. Hönle Medizintechnik GmbH System für UV-Bestrahlung und UV-Therapie
DE102020122448A1 (de) 2020-08-27 2022-03-03 Dr. Hönle Medizintechnik GmbH Verfahren zum Betreiben einer Bestrahlungsvorrichtung für die UV-Bestrahlung und UV-Therapie, Bestrahlungsvorrichtung, und System für UV-Bestrahlung und UV-Therapie

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622971A (en) * 1981-12-28 1986-11-18 Mitsubishi Denki Kabushiki Kaisha Erroneous impingement protective device for laser system
US5262636A (en) * 1992-05-04 1993-11-16 Diolase Corporation Proximity sensor apparatus for laser diode
WO1994028972A1 (fr) * 1993-05-14 1994-12-22 Eberhard Oppold Ouvertures de sortie de faisceau laser a dispositif de securite pour appareils medicaux therapeutiques et diagnostiques
WO2000059575A1 (fr) * 1999-04-07 2000-10-12 Loma Linda University Medical Center Systeme de surveillance des mouvements du patient dans le cadre d'une therapie protonique
US6138046A (en) * 1999-04-20 2000-10-24 Miravant Medical Technologies, Inc. Dosimetry probe
EP1236444B1 (fr) * 2001-02-14 2006-08-02 Sirona Dental Systems GmbH Dispositif pour la polymérisation de résines, en particulier pour des materiaux de remplissage et de collage dentaires

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622971A (en) * 1981-12-28 1986-11-18 Mitsubishi Denki Kabushiki Kaisha Erroneous impingement protective device for laser system
US5262636A (en) * 1992-05-04 1993-11-16 Diolase Corporation Proximity sensor apparatus for laser diode
WO1994028972A1 (fr) * 1993-05-14 1994-12-22 Eberhard Oppold Ouvertures de sortie de faisceau laser a dispositif de securite pour appareils medicaux therapeutiques et diagnostiques
WO2000059575A1 (fr) * 1999-04-07 2000-10-12 Loma Linda University Medical Center Systeme de surveillance des mouvements du patient dans le cadre d'une therapie protonique
US6138046A (en) * 1999-04-20 2000-10-24 Miravant Medical Technologies, Inc. Dosimetry probe
EP1236444B1 (fr) * 2001-02-14 2006-08-02 Sirona Dental Systems GmbH Dispositif pour la polymérisation de résines, en particulier pour des materiaux de remplissage et de collage dentaires

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8481982B2 (en) 2009-08-17 2013-07-09 Scot L Johnson Energy emitting treatment device
DE102020122455A1 (de) 2020-08-27 2022-03-03 Dr. Hönle Medizintechnik GmbH System für UV-Bestrahlung und UV-Therapie
DE102020122448A1 (de) 2020-08-27 2022-03-03 Dr. Hönle Medizintechnik GmbH Verfahren zum Betreiben einer Bestrahlungsvorrichtung für die UV-Bestrahlung und UV-Therapie, Bestrahlungsvorrichtung, und System für UV-Bestrahlung und UV-Therapie

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