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JP-2026075987-A - phototherapy device

JP2026075987AJP 2026075987 AJP2026075987 AJP 2026075987AJP-2026075987-A

Abstract

[Problem] To enable the irradiation of a set dose of therapeutic light regardless of whether an attachment is used or not. [Solution] The phototherapy device 1 comprises a light source 14 that outputs therapeutic light, an irradiation surface 12 that transmits therapeutic light and irradiates the area to be irradiated, a tip portion 13 that surrounds the irradiation surface 12 and a housing 11 that houses the light source 14, an attachment 20 that is detachably attached to the tip portion 13 and has an opening 21 and a light-shielding portion 22 arranged around the opening 21, with the light-shielding portion 22 tapering towards the opening 21 when attached to the tip portion 13, a recognition unit 17 that can recognize whether or not the attachment 20 is attached to the tip portion 13, and a control unit 30 that controls the light source 14 according to the recognition result by the recognition unit 17. [Selection Diagram] Figure 1

Inventors

  • 奥 啓之
  • 松井 大
  • 小山 智士

Assignees

  • 東京医研株式会社

Dates

Publication Date
20260511
Application Date
20241023

Claims (8)

  1. A light source that emits therapeutic light, An irradiation surface that transmits the aforementioned therapeutic light and irradiates the area to be irradiated, A housing having a tip portion that surrounds the illumination surface and housing the light source, An attachment that is detachably configured to be attached to the tip, having an opening and a light-shielding portion arranged around the opening, wherein when attached to the tip, the light-shielding portion is tapered from the tip toward the opening, The tip portion is configured to recognize whether or not the attachment is attached, A control unit that controls the light source according to the recognition result by the recognition unit, A phototherapy device equipped with [unspecified features].
  2. The control unit controls the light source to adjust at least one of the irradiation time of the therapeutic light and the output intensity of the therapeutic light according to the recognition result. The phototherapy device according to claim 1.
  3. The recognition unit is configured to recognize the type of the attached attachment. The phototherapy device according to claim 1.
  4. The recognition unit is configured to recognize that the attachment has been attached by detecting when the attachment comes into close proximity to the tip portion. The phototherapy device according to claim 1.
  5. The recognition unit is a magnetic sensor provided at the tip, and is configured to recognize that the attachment has been attached by detecting when a magnet provided on the attachment comes into close proximity. The phototherapy device according to claim 4.
  6. The tip portion is configured such that one of the multiple attachments can be selectively attached. The recognition unit includes one or more magnetic sensors provided at one or more different locations on the tip, and is configured to recognize which of the multiple attachments is attached, depending on at least one of the type and mounting position of the magnets provided on the multiple attachments. The phototherapy device according to claim 5.
  7. The control unit, The irradiation amount of the therapeutic light output from the light source is calculated according to the set irradiation amount. The attenuation rate of the therapeutic light output from the light source, according to the attachment type, is stored in advance. When the recognition unit recognizes that the attachment has been attached, it controls the light source so that the amount of treatment light irradiated onto the irradiated area through the opening becomes the calculated amount by adjusting at least one of the irradiation time of the treatment light and the output intensity of the treatment light according to the attenuation rate corresponding to the attachment type of the attachment. The phototherapy device according to claim 2.
  8. The light source includes a plurality of LED elements arranged opposite the irradiation surface, When the recognition unit recognizes that the attachment has been installed, it turns off the LED element corresponding to the light-shielding portion of the attachment among the plurality of LED elements. The phototherapy device according to claim 1.

Description

This invention relates to a phototherapy device. Phototherapy devices that use near-infrared light and other types of light to treat pain and other conditions are known. Conventional phototherapy devices include various types that improve eye safety by repeatedly changing the light intensity before and during irradiation, and those that enhance therapeutic effects by irradiating light with multiple wavelengths from multiple light sources. Irradiating the target area, such as the affected area, with the intended amount of light is crucial for achieving effective treatment. Patent Document 1 discloses an ultraviolet (UV) therapy device that suppresses changes in UV intensity in the target area, even when the irradiation area is narrowed. This UV therapy device comprises a housing containing a light source and a light emission window for extracting UV light, and a cylindrical attachment detachably attached to the housing. The attachment has a reflective member positioned within its inner space to surround the space through which the UV light travels. The reflective member has a light inlet for introducing UV light into the space and a light outlet for emitting the UV light that has traveled through the space outwards from the housing. The light inlet is located inside the light emission window. This reduces the amount of UV light that is not introduced into the inner space of the attachment, thus suppressing changes in UV intensity even when the irradiation area is narrowed by attaching the attachment. Japanese Patent Publication No. 2024-118824 Figure 1 is an exploded perspective view of a phototherapy device according to the first embodiment of the present invention.Figure 2 is a front view of a phototherapy device according to the first embodiment.Figure 3 is an enlarged front view of the irradiation surface of the phototherapy device according to the first embodiment.Figure 4 shows a functional block diagram of a phototherapy device.Figure 5 shows an attachment of a phototherapy device according to the first embodiment, where (a) is a front view of the attachment and (b) is a rear perspective view of the attachment.Figure 6 shows an attachment of a phototherapy device according to the second embodiment, where (a) is a front view of the attachment and (b) is a rear perspective view of the attachment.Figure 7 is an enlarged front view of the irradiation surface of the phototherapy device according to the third embodiment. The following describes in detail a specific embodiment of the phototherapy device according to the present invention, using the drawings. Figure 1 is an exploded perspective view of a phototherapy device 1 according to the first embodiment of the present invention. The phototherapy device 1 includes a main body 10 and an attachment 20 that is detachable from the main body 10. Figure 2 is a front view of the phototherapy device 1 according to the first embodiment, showing the attachment 20 attached to the main body 10. The phototherapy device 1 according to this embodiment is a device for performing so-called phototherapy, in which an operator (user) holds the main body 10 in their hand and irradiates a predetermined area (area to be irradiated) of the human body with therapeutic light to perform treatment. The therapeutic light is light used for treatment and includes ultraviolet and infrared rays. Examples of users include medical professionals such as doctors and nurses. The main body 10 comprises a housing 11 made of resin or the like. The housing 11 has a shape that allows a person to grasp it by hand. The housing 11 has an irradiation surface 12 that transmits therapeutic light and irradiates the area to be treated, and the tip 13 of the housing 11 surrounds the irradiation surface 12. Figure 3 is an enlarged front view of the irradiation surface 12 of the phototherapy device 1 according to the first embodiment. The housing 11 houses a light source 14 that emits therapeutic light. The therapeutic light emitted by the light source 14 is, for example, ultraviolet light, but the type of therapeutic light is not particularly limited. In this embodiment, the light source 14 includes a plurality of LED elements arranged facing the irradiation surface 12, but the type of light source 14 is also not particularly limited. The attachment 20, made of resin or similar material, is detachably attached to the tip 13 of the housing 11. The attachment 20 has an opening 21 and a light-shielding portion 22 positioned around the opening 21. When attached to the tip 13, the attachment 20 has a tapered shape, with the light-shielding portion 22 gradually narrowing from the tip 13 towards the opening 21. While the main body 10 can emit therapeutic light on its own, attaching the tapered attachment 20 allows for targeted irradiation of the therapeutic light to specific areas. The main body 10 further includes a recognition unit 17 at the tip 13, configured to recognize whether or not the attachment 20 is at