WO2015006848A1 - Flexible light treatment head - Google Patents
Flexible light treatment head Download PDFInfo
- Publication number
- WO2015006848A1 WO2015006848A1 PCT/CA2013/050549 CA2013050549W WO2015006848A1 WO 2015006848 A1 WO2015006848 A1 WO 2015006848A1 CA 2013050549 W CA2013050549 W CA 2013050549W WO 2015006848 A1 WO2015006848 A1 WO 2015006848A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- treatment head
- flexible light
- light treatment
- hinge
- head
- Prior art date
Links
- 238000011282 treatment Methods 0.000 title claims abstract description 99
- 230000003287 optical effect Effects 0.000 description 13
- 230000006378 damage Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 208000017667 Chronic Disease Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 208000008765 Sciatica Diseases 0.000 description 1
- 208000010040 Sprains and Strains Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 206010003246 arthritis Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000001126 phototherapy Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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
-
- 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
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0632—Constructional aspects of the apparatus
- A61N2005/0633—Arrangements for lifting or hinging the frame which supports the light sources
-
- 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 present invention relates generally to the field of light treatment therapy and more specifically to a flexible light treatment head for such therapy.
- Light treatment of patients for various conditions is becoming well known.
- Light treatment of injuries such as: sport injuries, sprains and the like; chronic conditions such as arthritis, sciatica and various related conditions; and chronic slow healing wounds or sores, are all well known.
- the principle of all these light treatments is the application of low intensity light radiating in the area of the patient's condition. It is found that in order to be effective, the light source should be in close contact with the skin.
- the light source is usually an array or panel of low intensity light emitting diodes, or in some cases low level laser.
- the treatment typically becomes more effective over longer periods.
- the light sources may, for example, be left in contact with the skin for thirty to sixty minutes.
- the head can then cause the strap to pull on the patient's body in the precise area at which the patient is suffering. This has been shown to cause discomfort and pain to a patient being treated.
- Another shortcoming is that other flexible light treatment heads are flimsy as a result of their design. [0007] Furthermore, some flexible light treatment heads are not adaptable to sizes much larger than a few inches square. Other flexible light treatment heads are designed in a way to cause significant barriers to repair, when they are found to be faulty or damaged. [0008] It is an object of the present invention to obviate or mitigate at least one of the above disadvantages.
- the present invention provides a flexible light treatment head comprising one or more light source modules interconnected by a hinge apparatus along a flexing edge thereof.
- the hinge apparatus may comprise a plurality of hinge joints.
- each hinge joint may be substantially identical.
- each hinge joint may have a first end and a second end, said first end adapted to fit rotatably in a corresponding second end of an adjacent hinge joint.
- each hinge joint may comprise a head wiring channel disposed from said first end to said second end.
- each hinge joint may comprise a module wiring channel extending from said head wiring channel.
- the module wiring channel may extend substantially perpendicularly from said head wiring channel.
- the hinge apparatus may provide a radius of curvature of 20mm concavely and 87mm convexly with reference to a treatment surface of said flexible light treatment head.
- the hinge apparatus may be unbiased.
- the hinge joint may rotate along only one axis relative to an adjacent hinge joint.
- a hinge joint cover may be disposed along an outer surface of the hinge joint.
- the hinge joint cover may be removable to diagnose and repair said flexible light treatment head.
- the flexible light treatment head further comprises a proximal strap aperture adapted to engage a strap.
- the flexible light treatment head may further comprise a distal strap aperture adapted to engage the strap to enable the flexible light treatment head to be maintained in position along a patient.
- the flexible light treatment head may further comprise a knob to engage the strap to enable the flexible light treatment head to be maintained in position along a patient.
- the knob may be provided on the hinge apparatus.
- each light source module may comprise one or more light emitting elements.
- the light emitting elements may comprise light emitting diodes.
- the light emitting elements may comprise LASERs.
- each light source module may comprise a heat sink.
- Figure 1 is a front perspective view of a flexible light treatment head
- Figure 2 is a bottom plan view of the flexible light treatment head
- Figure 3 shows a side view of flexible light treatment head
- Figure 4 is an exploded view of a light source module of the flexible light treatment head
- Figure 5 is a side view of two adjacent hinge joints
- Figure 6 is an exploded view of a control module of the flexible light treatment head
- Figure 7 is a front perspective view of a strap that can be affixed to the flexible light treatment head.
- a flexible light treatment head having a hinge apparatus along a flexing edge thereof.
- a corresponding hinge apparatus is provided along another flexing edge of the flexible light treatment head.
- a flexible light treatment head (100) comprises a control module (101) and one or more light source modules (104) interconnected by a hinge apparatus (106).
- the hinge apparatus (106) is disposed along a flexing edge of the flexible light treatment head (100).
- the hinge apparatus (106) comprises a plurality of hinge joints (108).
- Each light source module (104) may comprise one or more light emitting elements (105) disposed along a treatment surface (200) of the light source module for providing light therapy.
- the light emitting elements (105) are placed in contact, or nearly in contact, with a patient's skin in proximity of the condition being treated.
- the light emitting elements (105) comprise light emitting diodes (LED).
- the light emitting elements (105) comprise LASER.
- the light emitting elements (105) comprise any combination of LED and LASER.
- any light emitting element (105) providing the desired therapeutic effect may be provided.
- the wavelength and intensity of light emitted by such light emitting elements (105) is relevant to such therapeutic effect.
- light having a 660nm wavelength is applied.
- light having a wavelength of 840nm is applied.
- Combinations can also be applied.
- 660nm light is provided at 750m W total output power, which can be provided with approximately 180 LEDs, for example.
- 840nm light is provided at 1500mW of total output power, which can be provided with approximately 180 LEDs.
- 240 LEDs of 660nm light provides 1000 mW and 240 LEDs of 840nm light provides 2000mW. Other output intensities are possible.
- light emitting elements emitting light at other wavelengths could be provided, in particular to provide for different types of treatments.
- each light source module (104) comprises twenty light emitting elements.
- ten light source modules (104) are provided.
- the treatment surface may correspond to an array of two to fifty light source modules. It will be appreciated that the light source modules could have differing numbers of light emitting elements.
- a hinge apparatus (106) is shown. The hinge apparatus (106) enables the flexible light treatment head ( 100) to be flexed both inwardly (concavely) and outwardly (convexly) with reference to the treatment surface (200).
- the hinge apparatus is shown as being unflexed in Figure 3A, flexed concavely in Figure 3B and flexed convexly in Figure 3C.
- the flexing angle and flexing radius can be configured by providing a suitable hinge apparatus, which is described more fully below.
- the hinge apparatus (106) enables a radius of curvature of 20mm concavely and 87mm convexly, with reference to the treatment surface (200).
- the hinge apparatus (106) preferably can be flexed concavely along a portion of the treatment surface and convexly along another portion of the treatment surface, for example to define an S-shape or wave-shape when viewed from a side profile.
- the hinge apparatus (106) is preferably unbiased and retains the desired flexing angle without requiring an additional mechanical positioning or holding means.
- the preferred hinge apparatus (106) allows the flexible light treatment head (100) to lie in substantial contact with the skin in the entire treatment area, including on contoured areas of the body such as the leg, neck, arm, back, etc. without requiring such an additional mechanical positioning or holding means.
- the light source module (104) comprises an optical window (404), a circuit board (406) disposed above the optical window (404) and comprising circuitry sufficient to drive the light emitting elements (105) of the light source module (404), a heat sink body (408) disposed above the circuit board (406) operable to dissipate heat
- the optical window (404) comprises a plurality of apertures or transparent or translucent portions enabling light emitted from the light emitting elements (105) to be emitted to the treatment surface (200).
- the heat sink body (408) and optical window (404) may be affixed to provide an enclosure.
- the light source module (104) may be assembled using screws (410) that bind the optical window to the heat sink body (408), with the circuit board being held securely by the screws, other retaining elements provided in the heat sink body (408) and/or optical window (404), or by friction fit between the heat sink body (408) and optical window (404).
- the screws are selected to provide suitable clamping between the heatsink body and the circuit board to maximize heat dissipation. Thermal vias and/or large copper pads may additionally be provided in the circuit board to maximize heat dissipation.
- the hinge assembly abuts one end of the light source module, which is a flexing edge of the flexible light treatment head (100).
- a corresponding hinge assembly may be provided along the other (opposite) flexing edge of the light source module for increased rigidity and/or increasing wiring capacity.
- the hinge assembly comprises a hinge joint (400) and may further comprise a hinge joint cover (402) disposed along an outer surface of the hinge joint (400) opposite the surface of the hinge joint abutting the light source module (104).
- the hinge joint cover (402) may be affixed to the hinge joint (400) by one or more screws, which may further affix the hinge assembly to the light source module ( 104).
- the hinge joints (400) may be integrally formed with the optical window (404) or heat sink body (408).
- the hinge joints (400) are substantially identical, and comprise a first end (502) and a second end (504), the first end (502) adapted to fit rotatably in a corresponding second end (504) of an adjacent hinge joint (400).
- the first end may have an outer surface defining, in rotation, a cylinder of a particular circumference and the second end may have an inner surface forming a cylinder substantially equal but slightly larger in circumference that the outer surface of the first end, the slightly larger circumference enabling movement
- the hinge joints (400) allow for one degree of freedom rotationally so that the hinge apparatus (106) does not twist significantly along the common longitudinal axis of the hinge joints, hence providing substantial structural rigidity for the flexible light treatment head (100).
- the control module (101) and strap adaptor (102) comprise a hinge joint or portion of a hinge joint to mate with a hinge joint of an adjacent light source module (104).
- each hinge joint comprises a first flange (514) along the second end thereof to limit the movement of the first end of an adjacent hinge joint relative to the second end of the hinge joint to limit concave flexing.
- the hinge joint may comprise a second flange ( 16) to correspondingly limit convex flexing. It will be appreciated that the flanges could be provided at the first end of the hinge joint.
- the light source modules may be dimensioned to further limit the flexing angles.
- the hinge joint (400) further comprises a head wiring channel (510) disposed from the first end to the second end.
- the head wiring channel ( 10) is continuous when two or more hinge joints are connected to one another, including at the extent of flexing the head both concavely and convexly.
- the head wiring channel (510) receives electrical wiring for driving the light emitting elements of each light source module.
- a module wiring channel (512) extends from the head wiring channel (510) to the light source module. In the embodiment shown on Figure 5, the module wiring channel (512) is disposed at an angle substantially perpendicular to the head wiring channel (510). Wiring
- the heat sink body (408) has an aperture (412) disposed along at least one side thereof that enables wiring to be inserted into the light source module (104). This aperture could alternatively be disposed along the side of the optical window or between the heatsink and optical window.
- the hinge joint cover (402) encloses the head wiring channel and module wiring channel.
- the hinge joints (400) may be manufactured using a material which withstands corrosion or other damage so they may be cleaned with a medical grade disinfecting cloth.
- the hinge joint may further comprise one or more apertures (508) disposed therethrough for receiving the screws (410).
- any one hinge joint cover can be selectively removed for diagnosing a fault in any particular light source module or for repairing any light source module and/or wiring fault.
- the present invention enables any particular hinge to be replaced without affecting the remaining hinge assembly.
- the electrical wires corresponding to the modules may be easily accessed by removing the hinge joint cover (402). The malfunction may then be diagnosed.
- the hinge apparatus (106) can be partially disassembled so that said malfunctioning light source modules (104) can be substituted with new light source modules (104).
- the control module (101) comprises circuitry sufficient to control the electrical operation of the flexible light treatment head (100).
- the control module may, for example, comprise a controller and supporting circuitry that are electrically connected to each light source module via wiring routed through the hinge assembly.
- each light source module is electrically substantially identical and connected to the control module (101) in parallel.
- the circuit board (406) of each light source module (104) may comprise a thermistor circuit (not shown). The controller may obtain the output of the thermistor circuit to determine the temperature of each light source module (104) in operation.
- the controller may selectively disable any one or more of the light source modules that reach a temperature over a configured threshold to prevent discomfort or trauma to the patient.
- the circuit board (406) of each light source module (104) may further comprise a circuit diagnostic element (414).
- the circuit diagnostic element may, for example, comprise a sensing circuit, such as a resistor, for example, enabling the controller to obtain a voltage or current measurement relating to the light emitting elements of the light source module (104).
- the light emitting elements (105) on a circuit board (406) may be connected in a set of parallel circuits. In a particular embodiment, twenty LEDs may be arranged in four parallel circuits each comprising five LEDs in series.
- the circuit diagnostic element (414) may be operable to determine the voltage of each series circuit. This information can be transmitted, in analog or digital form, to the control module. Thus, the controller may detect a malfunctioning light source module and may selectively disable any one or more of the light source modules that are malfunctioning.
- the control module (101) may comprise a controller (600), top enclosure (603), bottom enclosure (604), connection port (602), a model window (606), status indicators (608), and a start/stop button (610).
- the status indicators may be used to indicate whether the flexible light treatment head is on or off, or whether the light emitting elements are enabled or disabled.
- the controller (600) supplies power to the light source modules (104), records light
- the controller (600) may turn on or off a light source module (104) whose temperature has exceeded preset limits. The controller (600) may also detect light emitting element failures by monitoring the sensing circuit.
- the control module (101) may further comprise a warning window or label to provide required information, such as that required by a regulatory authority.
- An external treatment controller (not shown) may provide power and/or instructions to the controller for a particular treatment via the connection port (602).
- the flexible light treatment head (100) may further comprise a strap adaptor (102) disposed along one end of the flexible light treatment head (100). The strap adaptor (102) is preferably disposed along an end of the flexible light treatment head (100) opposite the control module (101) with the one or more light source modules (104) disposed
- the strap adaptor (102) comprises a distal strap aperture (1 12) adapted to engage a strap.
- a strap can be coupled to the flexible light treatment head (100) by affixing it to the distal strap aperture (1 12).
- the control module (101) comprises a proximal strap aperture (109) adapted to engage the strap.
- the strap can also be coupled to the flexible light treatment head (100) by affixing it to the distal strap aperture (112).
- a strap can be strapped from the proximal strap aperture, around a patient's body part, and to the distal strap aperture. This can be beneficial if gravity alone is not sufficient to maintain the position of the flexible light treatment head (100) during operation.
- the strap adaptor (102), the distal strap aperture (112) or the proximal strap aperture (109) may further be used to hang the flexible light treatment head when not in use.
- one or more of the light source modules (104) may comprise a knob (1 14).
- a suitable strap may comprise one or more apertures operable to engage the knob (1 14). This can be beneficial if the body part being treated is not suitable for using the two
- the knob (114) may be provided on the hinge joint covers (402). [0053] Referring now to Figure 7a, a strap is shown.
- the strap (700) can be affixed to the flexible light treatment head (100) at each end thereof, for example at the proximal strap adaptor, distal strap adaptor or any of the knobs.
- the strap may comprise a fastener (702) at each end thereof to enable each end to be strapped to the strap apertures.
- the fastener may, for example, comprise Velcro, buttons, or other fasteners.
- the strap may alternatively comprise a stopper (708) at one end thereof wherein the stopper (708) is larger in at least one dimension than the proximal strap adaptor (109) and/or the distal strap adaptor (112).
- the strap can be woven through either strap adaptor from the end opposite of the stopper such that the stopper is prevented from passing through the strap adaptor.
- the strap may be a stretchable fabric or comprise a stretchable portion.
- the strap may comprise a Vel-stretch material.
- the strap may further comprise one or more apertures (704) through which a knob can be received.
- the strap can be affixed to the flexible light treatment head (100) using one or more apertures and one or more corresponding knobs, with or without one or two of the strap apertures or avoiding use of the strap apertures completely.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2917259A CA2917259A1 (en) | 2013-07-15 | 2013-07-15 | Flexible light treatment head |
AU2013394847A AU2013394847B2 (en) | 2013-07-15 | 2013-07-15 | Flexible light treatment head |
PCT/CA2013/050549 WO2015006848A1 (en) | 2013-07-15 | 2013-07-15 | Flexible light treatment head |
EP13889643.6A EP3021937B1 (en) | 2013-07-15 | 2013-07-15 | Flexible light treatment head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CA2013/050549 WO2015006848A1 (en) | 2013-07-15 | 2013-07-15 | Flexible light treatment head |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015006848A1 true WO2015006848A1 (en) | 2015-01-22 |
Family
ID=52345641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2013/050549 WO2015006848A1 (en) | 2013-07-15 | 2013-07-15 | Flexible light treatment head |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3021937B1 (en) |
AU (1) | AU2013394847B2 (en) |
CA (1) | CA2917259A1 (en) |
WO (1) | WO2015006848A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3068668A (en) * | 1960-05-25 | 1962-12-18 | Boehler & Co Ag Geb | Articulated joints |
US6187029B1 (en) * | 1999-03-02 | 2001-02-13 | Physician's Technology, Llc | Photo-thermal treatment device |
US6221095B1 (en) * | 1996-11-13 | 2001-04-24 | Meditech International Inc. | Method and apparatus for photon therapy |
US20060282134A1 (en) * | 2005-06-10 | 2006-12-14 | Shapiro Ronald S | Photo-thermal therapeutic device |
US20080179879A1 (en) * | 2007-01-31 | 2008-07-31 | Scott Wu | Flam Floor Pump Having Universal Joint Unit |
US20120008042A1 (en) * | 2010-07-08 | 2012-01-12 | Avermedia Information, Inc. | Support structure and document projector using the same |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8083784B2 (en) * | 2003-08-19 | 2011-12-27 | Photonx Health Corporation | Photon therapy method and apparatus |
US20060287696A1 (en) * | 2005-06-21 | 2006-12-21 | Wright David W | Heat and light therapy treatment device and method |
GB0821862D0 (en) * | 2008-12-01 | 2009-01-07 | Lumicure Ltd | Light Emitting apparatus |
KR20130017696A (en) * | 2011-08-11 | 2013-02-20 | 한국전자통신연구원 | Pad for thermotheraphy |
WO2013105079A2 (en) * | 2012-01-11 | 2013-07-18 | Syneron Medical Ltd. | Large area body shaping applicator |
-
2013
- 2013-07-15 WO PCT/CA2013/050549 patent/WO2015006848A1/en active Application Filing
- 2013-07-15 EP EP13889643.6A patent/EP3021937B1/en active Active
- 2013-07-15 AU AU2013394847A patent/AU2013394847B2/en active Active
- 2013-07-15 CA CA2917259A patent/CA2917259A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3068668A (en) * | 1960-05-25 | 1962-12-18 | Boehler & Co Ag Geb | Articulated joints |
US6221095B1 (en) * | 1996-11-13 | 2001-04-24 | Meditech International Inc. | Method and apparatus for photon therapy |
US6187029B1 (en) * | 1999-03-02 | 2001-02-13 | Physician's Technology, Llc | Photo-thermal treatment device |
US20060282134A1 (en) * | 2005-06-10 | 2006-12-14 | Shapiro Ronald S | Photo-thermal therapeutic device |
US20080179879A1 (en) * | 2007-01-31 | 2008-07-31 | Scott Wu | Flam Floor Pump Having Universal Joint Unit |
US20120008042A1 (en) * | 2010-07-08 | 2012-01-12 | Avermedia Information, Inc. | Support structure and document projector using the same |
Also Published As
Publication number | Publication date |
---|---|
EP3021937A4 (en) | 2017-03-08 |
AU2013394847B2 (en) | 2017-03-16 |
EP3021937A1 (en) | 2016-05-25 |
AU2013394847A1 (en) | 2016-01-28 |
EP3021937B1 (en) | 2018-09-05 |
CA2917259A1 (en) | 2015-01-22 |
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