ADHESIVE PHOTOTHERAPY METHOD, SYSTEM, AND DEVICES
20230277866 · 2023-09-07
Inventors
Cpc classification
A61N2005/0643
HUMAN NECESSITIES
International classification
Abstract
A dermatological phototherapy device, system, and method, including a light emitting device configured and arranged to emit light from a bottom surface thereof; and an attachment portion having an aperture therethrough configured to permit light through. The attachment portion is configured to retain the device to a user's skin using a circumferential silicone skirt and bathe the skin with phototherapeutic light from the light emitter. Attachment of the device may be preceded with the application of synergistic fluid, ointment, gel, cream, lotion, foam, soap, or other solutions which may or may not consist of known topical treatment agents, augment device attachment to the skin, and/or have photodynamic properties. The light emitted may be any wavelength, combinations of wavelengths, intensity, pulse frequency, and exposure duration.
Claims
1. A site-mounted epidermal surface treatment device, comprising: a light source configured for emission of therapeutic light onto the epidermal surface; a housing adapted for placement on the epidermal surface, the light source contained within the housing; and an engagement mechanism for securing the housing on the epidermal surface, the engagement mechanism including a deformable member extending perimetrically around the housing.
2. The device of claim 1 wherein the deformable member is biased towards the epidermal surface.
3. The device of claim 1 wherein the deformable member is oriented at a downward angle toward the epidermal surface, the downward angle imposing a biasing force towards the dermal surface.
4. The device of claim 1 wherein the engagement mechanism includes a patch, the patch formed from a flexible planar material and having a shape based on a shape of the housing.
5. The device of claim 4 wherein the patch is hydrocolloid.
6. The device of claim 4 wherein the patch has an adhesive, the adhesive in contact with the patch and the deformable member on a first side, and configured for contact with the epidermal surface on a second side.
7. The device of claim 5 wherein the hydrocolloid patch is impregnatable with therapeutic agents.
8. The device of claim 2 wherein the deformable member forms a complete circumferential ring around the housing.
9. The device of claim 8 wherein the deformable member extends completely over the housing and forms a continuous shroud.
10. The device of claim 9 wherein the deformable member is formed from silicone.
11. The device of claim 5 wherein the patch has an area at least as large as an area defined by the circumference of the deformable member.
12. The device of claim 1 further comprising a power switch, the power switch on an upper side of the housing opposed from the epidermal surface.
13. The device of claim 12 wherein the deformable member extends completely over the housing and forms a continuous shroud, the power switch encapsulated under the continuous shroud, the continuous shroud deforming for actuating travel of the power switch.
14. The device of claim 12 further comprising a power circuit, the power circuit connected to the light source for energizing the therapeutic light for irradiation onto the epidermal surface; and a battery connected between the switch and the power circuit, the power circuit responsive to the switch for directing power to the light source and energizing the light source.
15. A method for epidermal surface treatment comprising: affixing a housing on the epidermal surface using an engagement mechanism for locating and securing the housing on the epidermal surface; engaging a deformable member extending perimetrically around the housing with the epidermal surface; and activating a light source contained within the housing to emit therapeutic light onto the epidermal surface.
16. The method of claim 15 further comprising biasing the deformable member at a downward angle toward the epidermal surface.
17. The method of claim 15 further comprising: applying an adhesive to a first and second side of a patch formed from a flexible, transparent planar material and having a shape based on a shape of the housing; and disposing the patch between the epidermal surface and the deformable member.
18. The method of claim 15 further comprising disposing a topical agent between the deformable member and the epidermal surface.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] These and other features, aspects, and advantages of the present invention will become better understood with reference to the following description, appended claims, and accompanying drawings where:
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DESCRIPTION OF THE PREFERRED EMBODIMENT
[0046] As will be described in greater detail below, the phototherapy devices, system, and methods are described herein. The devices can generally include a light emitter and an attachment device with an aperture that attaches to the light emitter. The attachment device can permit the device and the associated housing to removably attach to a user's skin at a variety of locations without concern for where the device is going to be used. Further, the attachment device advantageously allows for application of light-based phototherapy without the need for the user to continuously hold the device in place. Further still, the small foot print of the device advantageously will not obstruct the user's ability to see or perform other daily activities.
[0047] In a first embodiment, referring now to
[0048] As noted above, the device 200 can generally include a light emitter 212 having a circuit board 214 with a light emitting diode (“LED”) 216 on a bottom surface thereof. In a first embodiment, the LED 216 is a blue-light LED. Alternatively, the LED 216 can be a red-light LED, or a combination thereof. Further still, the LED 216 can be any type of light source which produces a therapeutic benefit. A battery 218 can be retained in a battery cage 220 on a top surface of the circuit board 214. The switch 222, such as a momentary switch, can be connected to the circuit board 214 with ribbon cable (not shown). A circuit can be formed with the LED 216, switch 222 and battery 218. The circuit can be programmed to operate the LED 216 for a predetermined time when the switch 222 is depressed. The circuit can be substantially the same as the circuit shown in
[0049] In a first exemplary method of use, as shown in
[0050] Referring now to
[0051] Referring to
[0052] In one embodiment, the pad 26 may be ring-shaped; however, the pad 26 may have a different shape. Similarly, the aperture 30 in the pad 26 may be circular or have another profile. The profile of the aperture 30 need not be the same as the profile of the outer shape of the pad 30. For instance, the pad 26 may have a circular profile while the aperture 30 has a square profile. The pad 26 may be formed from a foam material having a thickness sufficient to elevate the circuit board 14 and LED 16 away from a person's skin. The pad 26 may include adhesive with a peelable, protective layer 36 on a top side and/or a bottom side of the pad (best seen in
[0053] Referring to
[0054] In some embodiments, the case 102 may generally be in a clamshell configuration with a bottom portion 104 and a top portion 106 hinged to the bottom portion 104. The top portion 106 may pivotally open and close about the hinge 108. In one embodiment, the case 100 is circular, with a first location located in a center of the bottom portion 106 the case 100 to hold a light emitter 12 and a number of second locations located about the periphery of the bottom portion 106 of the case 100, configured to hold a number of disposable pads 26. Other case configurations may be used. The number of disposable pads 26 may be selected based on the number of treatments prescribed, such as 7-10, for example.
[0055] Depressing the switch 22 activates the LED 16 for a predetermine treatment period. For instance, a treatment period may be thirty minutes. After the treatment period lapses, the LED 16 is switched off. In addition, the light emitter 12 may deactivate after a specified total number of prescribed uses, such as 7-10 treatments. Optionally, the circuit board 14 may be further programmed to pulse, change the wavelength, or intensity of the emitted light from the LED 16 according to the prescribed treatment regimen.
[0056] The LED 16 may be configured to emit a non-UV light, such as blue light in wavelengths from 380 nm to 500 nm. In particular, blue light in wavelengths of about 405 nm may be used.
[0057] Referring to
[0058] In a first and second steps, the user is provided a pad and light emitter as described above, which may be in a case of the kit described above. In a third step, the user opens the case and selects a pad. The user then peels away the protective layer from one side of the adhesive of the pad and attaches the pad to the light emitter. In particular, the user removes the might emitter from the case and press the exposed first layer of adhesive of the pad onto the bottom surface of the device, being careful to center the pad on the device.
[0059] In a fourth step, the user peels away a protective layer from the other, exposed side of the pad, exposing the second layer of adhesive, and the device is then applied to the affected area of the skin with gentle pressure by pressing the exposed adhesive of the pad against skin. For example, in
[0060] In a sixth step, the user then activates the device by pressing the switch. After the predetermined time period lapses in a seventh step, the device shuts off and alerts the user. For example, in
[0061] In a seventh and eighth steps, the user then removes the device from the skin and peels the pad from the device and disposes the pad. The device is returned to the case until the next treatment. The foregoing method can be performed at various stages of the acne progression. For example, the method can be performed upon the emergence of a lesion to reduce the severity of the acne by killing pathogenic bacteria; during an active breakout of acne to expedite recovery, reduce the inflammation, reduce erythema and bacteria, and improve the overall outcome; or after the acne has cleared up to reduce scar formation and severity to improve the healing. Moreover, a user can perform the method during one, two or all the stages.
[0062] Therefore, it can be seen that the present invention provides a unique solution to the problem of treating a skin disorder, such as acne, with phototherapy that does not require that the person hold the device or sit still during treatment. Furthermore, the user may remain active and use both hands for other tasks.
[0063] As an alternative to the pressure-based suction cup approach disclosed above, an alternate configuration employs a lightweight device with a transparent hydrocolloid patch for securing a therapeutic light emitting device.
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[0065] Secured inside the housing 201 are a circuit board 249, or PCB (Printed Circuit Board) with a circuit 242 including a light source (LEDs 231, 233), power supply or battery 244, and control logic 245 embedded in software or firmware on the circuit 242. The light source provided by the LEDs is directed downward at the bottom window 221 for passage of therapeutic light therethrough, such that the light source and control logic are configured to irradiate an afflicted region 262 on an dermal surface 260 at a predetermined wavelength of the therapeutic light.
[0066] The bottom window 221 is receptive to a transparent adhesive hydrocolloid. The transparent hydrocolloid is adhesive for retaining the housing and circuit disposed over a treatment site on an dermal surface of the patient. Both the bottom window 221 and the transparent adhesive hydrocolloid 223 have a transparency for permitting passage of the therapeutic light from the light source to the treatment site for imparting beneficial therapeutic effects, pus- and fluid-absorptive properties, and with impregnated topical agents 223.
[0067] In a particular configuration, the transparent adhesive hydrocolloid may be applied directly to the bottom window 221, an afflicted region 262, or in the form of a patch 250 disposed between the bottom window 221 and the dermal surface 260. The device 200, secured by the adhesive hydrocolloid patch, then remains fixed for a sufficient time for the light sources 231, 233 to have a beneficial effect. The transparent window 221 through which the therapeutic light is provided defines at least a portion of a bottom base 213, where the transparent window 221 is configured to pass the therapeutic light.
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[0069] The circuit 242 includes one or more lighting elements based on the plurality of wavelengths and/or ranges employed for treatment, such that each of the lighting elements is configured for emitting a light having a corresponding wavelength, and each of the lighting elements is responsive to the control logic for emitting the light at a therapeutic sequence defining a predetermined duration and interval. In a particular configuration, the light may need only be activated for a brief interval, following a longer period of exposure to the medication and/or patch, or the device 200 may remain affixed to the dermal surface for a treatment duration.
[0070] The predetermined wavelength of the LEDs therefore includes a plurality of wavelengths, such that each wavelength of the plurality of wavelengths is selected based on a therapeutic result provided by the respective wavelength. In a particular configuration, therefore, a combination of blue light for antimicrobial properties, and red light for anti-inflammatory properties, may be selected. For example, the blue LED 231 emits a blue light in a wavelength range of between 380 nm to 500 nm, and the red LED 233 emits a red light in a wavelength between 600 nm to 700 nm. Other suitable wavelengths may be selected.
[0071] The hydrocolloid patch has both adhesion and therapeutic properties. The transparent adhesive hydrocolloid may include impregnated agents selected for having a complementary effect with the predetermined wavelength, for treatment of the afflicted region 262. The adhesive nature of the medication may be used to adhere the bottom window 221 directly to the afflicted region 262, or may be in the form of a patch 250.
[0072] The hydrocolloid patch can absorb pus and fluid from the underlying acne lesion. The dermal device is adhered via the adhesive transparent hydrocolloid patch, such that the adhesive patch becomes disposed between the bottom window 221 and the afflicted dermal region 262 and has adhesive force for withstanding gravitational force exerted on the dermal device. Once the LED 231, 233 is activated, via the control logic, for invoking the light source according to a therapeutic sequence for directing light of a predetermined wavelength or wavelengths onto the afflicted dermal region. Any suitable agent impregnated in the hydrocolloid patch may be employed, however in a particular configuration 250 including at least one of acne-fighting salicylic acid and inflammation-reducing tea tree oil.
[0073] The transparent adhesive hydrocolloid patch 250 can be impregnated with various agents and combination of agents for complementary purposes. The transparent nature enables transmission of the light therapy from the device 200, which is securely attached to the skin by the adhesive patch. The patch 250 is customizable in that it may be impregnated with various agents. For example, it may be impregnated with retinoids, benzoyl peroxide, clindamycin, salicylic acid, azelaic acid, erythromycin and any other suitable proprietary or brand formulations, particularly those having a synergistic beneficial combined effect with the red and blue light phototherapy.
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[0075] In an example usage scenario, the device 200 and patch 250 are applied to the afflicted region 262 for about 3 minutes, during which the device 200 is remains adhered while the timed light activated by the control 214 irradiates the afflicted area 262. The light unit may then be removed, and the patch remaining in place for continued therapeutic effect. However, any suitable usage cycle of light and patch administration may be performed.
[0076] Further indications for the adhesive phototherapy may include anti-aging, acne scars, psoriasis, dermatitis, vitiligo, alopecia, pityriasis rosea, parapsoriasis, cutaneous T-cell lymphoma, photo dermatoses, lichen planus, pruritus, pityriasis lichenoides, eczema, mycosis fungoides, polymorphic light eruption, cutaneous graft versus host disease, granuloma annulare, mastocytosis, chronic spontaneous urticaria, aesthetic and cosmetic concerns such as texture and tone focused treatments, and additional skin concerns. Various alterations to the phototherapy may be implemented, for example, and anti-aging regimen would likely entail only red light.
[0077] Treatment activation cycles of phototherapy may also be controlled by a mobile device application for activating and tracking treatment history and progress. In a particular configuration, the phototherapy device further comprises a network interface, and the control logic 245 transmits, via the network interface, activation information depicting timing, wavelength and duration of the activated phototherapy device. An app (application) on a smartphone conversant device receives the activation information for coalescing the activation information with a regimen of patient treatment data. Configurations above demonstrate therapeutic advantages of emitting a non-UV light, such as blue light in wavelengths from 380 nm to 500 nm. In particular, blue light in wavelengths of about 405 nm may be used. A module and adhesion for directing the therapeutic light to an acne lesion or other epidermal site symbiotically combines a topical hydrocolloid or similar substance with the light for epidermal treatment.
[0078] The device 300 is about 26 mm (1 inch) wide, having a generally round or rounded-square form factor. A thickness just under 1 cm (9 mm) provides a compact package suitable for epidermal adhesion for direct skin contact. A power switch contact 306 engages the light source driven by a power circuit, discussed below with respect to
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[0080] The deformable member 320 forms a complete circumferential ring around the housing 310 for encapsulating the patch 340. Depending on construction, the deformable member 320 may extend completely over the housing and forms a continuous shroud, or may be attached to and extend from an edge of the housing 310. The power switch 305 is engaged via the power switch contact 306 on an upper side of the housing opposed from the epidermal surface. The power switch contact 306 may be continuous and/or integrated with a continuous shroud of the deformable member 320, or may be a separate depressable linkage for actuation. When the deformable member 320 extends completely over the housing and forms a continuous shroud, the power switch 305 is encapsulated under the continuous shroud such that the continuous shroud deforming for actuating travel of the power switch 305.
[0081] The adhesion is provided by the patch 340, cream or gel having transparent properties for passing the irradiated light 330. When a patch 340 is used, an adhesive on both sides adheres the housing and skirt to the epidermal surface. When a transparent gel or cream is used, the tackyness of the cream or gel serves to adhere. The skirt (deformable member 320) resiliently applies a surface contact bias to slightly compress the pad or crème to form a thin layer between the skin and the skirt for facilitating adhesion. When a patch is employed, it may have an area at least as large as an area defined by the circumference of the deformable member 320, to form a complete contact region encircling the treatment site where the pad is biased against the skin in a compressive arrangement with the skirt.
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[0084] In
[0085] The patch 340 is typically a hydrocolloid patch impregnated with a topical or therapeutic substance complementary to the therapeutic light. The patch is transparent and has an adhesive to contact and adhere the patch and the deformable member on a first side, and adhesive on a second side configured for contact with the epidermal surface. The patch 340 may be slightly larger than the area occupied by the deformable member, such that the deformable member 320 rests on and compresses the patch at a downward angle 352 from the biasing force of the patch 340. The patch 340 may be impregnated with a topical gel or cream, and collectively provides and adhesion in conjunction with the deformable member 320 upon contact with the epidermal surface 331.
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[0087] In the circuit 360″, an IC (integrated circuit) chip 362 includes illumination logic 364 for activating the light source 350 according to a therapeutic pattern. The therapeutic pattern may include particular light intensities and wavelengths, and may regulate timing cycles of illumination to pulse the light over predetermined intervals. Although blue light is an expected regimen, LEDs of the light source 350 may be programmed with an intended wavelength/color of light emitted.
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[0089] It would be appreciated by those skilled in the art that various changes and modifications can be made to the illustrated embodiments without departing from the spirit of the present invention. All such modifications and changes are intended to be within the scope of the present invention except as limited by the scope of the appended claims.