阅读说明：本技术 一种光辐照输出调节装置 (Light irradiation output adjusting device ) 是由 万俊超 于 2021-03-08 设计创作，主要内容包括：本发明提供了一种光辐照输出调节装置,包括辐照器、遮光帘、定位挡片与侧挡帘。辐照器正面带有光输出窗口,内部用于安装光源。遮光帘安装在辐照器的正面,用于调节光输出窗口的透光面积。定位挡片安装在遮光帘的边沿,使光输出窗口与被辐照物产生间隔。侧挡帘与定位挡片连接围成遮光罩。本发明可通过调节遮光帘调整出光窗口大小,适应不同的患者光疗面积及部位。定位挡片为患者提供最佳照射距离指示。定位挡片和侧挡帘内侧有反光作用,提高了光输出窗口的光强度和均匀性。光疗结束后,光输出窗口完全封闭。(The invention provides a light irradiation output adjusting device which comprises an irradiator, a shading curtain, a positioning baffle and a side baffle curtain. The front surface of the irradiator is provided with a light output window, and the inside of the irradiator is used for installing a light source. The shading curtain is arranged on the front surface of the irradiator and is used for adjusting the light transmission area of the light output window. The positioning baffle is arranged at the edge of the light-shielding curtain, so that the light output window is separated from the irradiated object. The side curtain is connected with the positioning baffle to form a light shield. The invention can adjust the size of the light-emitting window by adjusting the light-shading curtain, and is suitable for different phototherapy areas and parts of patients. The positioning flap provides an optimal exposure distance indication for the patient. The positioning baffle and the inner side of the side baffle have light reflecting effect, and the light intensity and uniformity of the light output window are improved. After the phototherapy is finished, the light output window is completely closed.)

1. A light irradiance output adjusting apparatus, comprising:

the front surface of the irradiator is provided with a light output window, and a light source is arranged in the irradiator;

the shading curtain is arranged on the front surface of the irradiator and is used for adjusting the light transmission area of the light output window;

the positioning baffle is arranged at the edge of the shading curtain, so that the light output window and an irradiated object are separated;

the side curtain baffles are connected with the positioning blocking pieces to form a light shield.

2. A light irradiance output adjusting device as recited in claim 1, wherein the shade comprises:

a curtain cloth made of opaque material;

a housing for receiving the cord fabric;

a rolling rod installed in the housing for winding the curtain cloth;

and the scroll spring is connected with the rolling curtain rod and provides power for winding the curtain cloth.

3. A light irradiance output adjusting device as claimed in claim 1, wherein a first shade is installed at an upper portion of the irradiator, and a second shade is installed at a lower portion of the irradiator, and the first shade and the second shade are opened and closed oppositely.

4. A light irradiance output modulating device as claimed in claim 3, wherein the length of the first shade is greater than the length of the light output window, and the length of the second shade is also greater than the length of the light output window.

5. A light irradiance output adjusting device as claimed in claim 1, wherein the width of the positioning baffle is 5-20 cm.

6. A light irradiance output adjusting device as recited in claim 1, wherein the positioning flap is foldable.

7. A light irradiance output adjusting device as recited in claim 1, wherein the upper ends of the side curtains are detachably connected to the positioning baffle.

8. A light irradiance output adjusting device as recited in claim 7, wherein the upper end of the side curtain is connected with the positioning flap by a magic buckle.

9. A light irradiance output adjusting device as claimed in claim 1, wherein the irradiator is provided with a guide rail on which a slider is mounted, and the shade is connected with the slider; the sliding block is provided with a locking structure for being fixed on the guide rail.

10. A light irradiance output adjusting device as recited in claim 9, wherein the track is graduated.

Technical Field

The invention relates to a light adjusting device, in particular to a light irradiation output adjusting device for phototherapy equipment, and belongs to the technical field of phototherapy.

Background

Phototherapy is physical therapy for treating diseases by using radiant energy of light, such as ultraviolet therapy, visible light therapy, infrared therapy and laser therapy. Wherein the ultraviolet therapy is used for treating skin diseases such as psoriasis, vitiligo, chronic eczema, neurodermatitis, etc.

At present, ultraviolet phototherapy instruments with various irradiation areas are on the market according to different skin affected areas of patients. For some local small-area ultraviolet light therapy instruments, a small shading sheet is usually provided; however, the ultraviolet phototherapy apparatus for the half-body or the whole body, which is often selected by patients with extensive or generalized skin diseases, lacks the related shading structure. Because the light that the phototherapy instrument light source sent all diverges, the patient is when carrying out the phototherapy, except that the affected part skin of health, other normal positions such as face inevitably receive the radiation of ultraviolet light yet, and the patient can wear eye or head ultraviolet protection casing usually and avoid ultraviolet irradiation. This approach, however, is less comfortable and has limited protection. In addition, the existing half-body or whole-body ultraviolet phototherapy instruments also adopt a fluorescent lamp tube as an ultraviolet light source, and have the disadvantages of poor optical collimation effect, large light output emission angle, low utilization rate, high irradiation center intensity and low peripheral intensity.

The shading mode of the existing large-area ultraviolet phototherapy instrument needs to be improved, so that the large-area ultraviolet phototherapy instrument is safer and more effective.

Disclosure of Invention

The technical problem to be solved by the invention is as follows:

(1) the shading device of the large-area ultraviolet phototherapy instrument is provided, and is convenient for medical staff or patients to adjust according to the area of the part to be treated, so that the normal part of the patient is protected from ultraviolet irradiation as much as possible.

(2) The effective utilization rate of light radiation and the light output uniformity are improved.

In order to solve the above technical problems, the present invention provides a light irradiation output adjusting apparatus, comprising:

the front surface of the irradiator is provided with a light output window, and the inside of the irradiator is used for installing a light source;

the shading curtain is arranged on the front surface of the irradiator and is used for adjusting the light transmission area of the light output window;

the positioning baffle is arranged at the edge of the light-shielding curtain to enable the light output window to be separated from the irradiated object;

and the side curtain shields are connected with the positioning baffle plates to form a light shield.

In some embodiments, a window blind includes:

a curtain cloth made of opaque material;

a housing for receiving a curtain;

a curtain rod installed in the housing for winding the curtain cloth;

and the scroll spring is connected with the rolling curtain rod and provides power for winding the curtain cloth.

In some embodiments, the upper part of the irradiator is provided with a first shade, the lower part of the irradiator is provided with a second shade, and the first shade and the second shade are oppositely opened and closed.

In some embodiments, the length of the first shade is greater than the length of the light output window, and the length of the second shade is also greater than the length of the light output window.

In some embodiments, the width of the positioning baffle is 5-20 cm.

In some embodiments, the positioning flap can be folded over.

In some embodiments, the upper ends of the side curtains are detachably attached to the positioning flap.

In some embodiments, the upper end of the side curtain is connected with the positioning baffle by a magic buckle.

In some embodiments, the irradiator is provided with a guide rail, a sliding block is arranged on the guide rail, and the shading curtain is connected with the sliding block; the sliding block is provided with a locking structure for being fixed on the guide rail.

In some embodiments, the rail is graduated.

The invention has the beneficial effects that:

(1) the size of the light-emitting window is adjusted by adjusting the position of the shading curtain cloth, so that the light-emitting window is suitable for different phototherapy areas and parts of patients;

(2) the extended length position of the positioning baffle is set as follows: the position with good irradiation intensity and uniformity of light output by the light output window provides optimal irradiation distance indication for a patient;

(3) the positioning baffle and the inner side of the side baffle have a light reflecting effect, so that the light intensity and uniformity of the light output window are improved;

(4) after phototherapy is finished, the light output window can be completely closed by the positioning blocking piece and the shading curtain, and the functions of protection and dust prevention are achieved.

Drawings

FIG. 1 is a schematic view of the overall appearance of a light irradiation output adjusting apparatus according to a preferred embodiment of the present invention.

FIG. 2 is a schematic view of the structure of an irradiator having a light irradiation output adjusting device according to a preferred embodiment of the present invention.

FIG. 3 is a schematic view of the structure of the shade housing of the light output adjusting apparatus according to a preferred embodiment of the present invention.

FIG. 4 is a partially enlarged view of a light irradiation output adjusting device according to a preferred embodiment of the present invention.

FIG. 5 is a schematic view showing the structure of a slider of the light irradiation output adjusting apparatus according to a preferred embodiment of the present invention.

FIG. 6 is a schematic diagram showing the scale of the guide rail of the light irradiation output adjusting apparatus according to a preferred embodiment of the present invention.

FIG. 7 is a schematic view of the positioning plate of the light irradiation output adjusting device according to a preferred embodiment of the present invention.

FIG. 8 is a schematic bottom view of a positioning plate of the light irradiation output adjusting device according to a preferred embodiment of the present invention.

FIG. 9 is a schematic view showing a closed state of the light irradiation output adjusting apparatus according to a preferred embodiment of the present invention.

The reference numbers of the above figures are as follows:

100 irradiator

110 case

111 light output window

120 light source

200 window shade

210 window shade

211 shade curtain outer cover

212 cord fabric

220 window shade

300 positioning baffle

310 positioning baffle

320 positioning baffle plate

330 side curtain

400 sliding device

410 guide rail

411 groove

420 sliding block

421 jack

422 bottom support

430 fastening knob

431 anti-skid lines

Detailed Description

As used in this specification and the appended claims, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "a" or "an," and the like, do not denote a limitation of quantity, but rather denote the presence of at least one. In the description of this patent, unless otherwise indicated, "a plurality" means two or more. The word "comprising" or "having", and the like, means that the element or item appearing before "comprises" or "having" covers the element or item listed after "comprising" or "having" and its equivalent, but does not exclude other elements or items.

In the description of this patent, it is to be understood that the terms "upper," "lower," "left," "right," "horizontal," "lateral," "longitudinal," "top," "bottom," "inner," "outer," "clockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

A light irradiation output adjusting device is shown in fig. 1, and mainly comprises an irradiator 100, a shading curtain 200, a positioning baffle 300, a sliding device 400 and the like. The window blinds 200 are installed at the upper and lower edges of the irradiator 100, and the sliding devices 400 are installed at the left and right edges of the irradiator 100. In another embodiment, the installation positions of the window shade 200 and the sliding device 400 can be exchanged according to actual needs: i.e., the window blinds 200 are installed at the left and right edges of the irradiator 100, and the slide devices 400 are installed at the upper and lower edges of the irradiator 100.

The irradiator 100 is the light emitting portion of a phototherapy apparatus and includes a housing 110 in which a light source 120 is mounted, as shown in fig. 2. The case 110 is made of a metal plate or a hard plastic that is opaque and resistant to light aging. The box body 110 is cuboid, wherein a light output window 111 is arranged on the front surface, and the other surfaces are completely closed, so that phototherapy light leakage is avoided. Preferably, the light output window 111 is rectangular, occupying a substantial portion of the entire surface of the housing 110, leaving only the peripheral edge of the housing 110 where to mount the window shade 200 and the slide guide.

The light sources 120 are installed inside the case 110, and output light to the outside through the light output window 111 after they are lit. The light source 120 shown in fig. 2 uses ultraviolet fluorescent tubes, and a plurality of ultraviolet fluorescent tubes are installed in parallel along the longitudinal direction of the case, and the distance between two adjacent ultraviolet fluorescent tubes is kept consistent, so that the light is uniform. In other embodiments, a plurality of purple fluorescent tubes can be arranged in parallel along the transverse direction of the box body. Alternatively, the ultraviolet fluorescent lamp tube is replaced by another light source capable of emitting ultraviolet rays, for example, an ultraviolet LED is used as the ultraviolet light source. The ultraviolet LEDs are point-shaped, and the arrangement mode of the ultraviolet LEDs is very flexible; compared with an ultraviolet fluorescent lamp tube, the ultraviolet LEDs can be more uniformly arranged in the box body 110. The ultraviolet LED has larger heat productivity, and a fan and other cooling equipment are preferably arranged in the box body for heat dissipation.

The window shade 200 includes a window shade 210 and a window shade 220 that open and close in opposite directions, as shown in fig. 8. A window shade 210 is mounted at the upper end of the applicator 100, with a length of the curtain 212 being greater than the length of the entire light output window 111, and a width of the curtain 212 being slightly greater than the width of the light output window 111. A window shade 220 is mounted at the lower end of the applicator 100, the length of the shade also being greater than the length of the entire light output window 111, and the width being slightly greater than the width of the light output window 111. The opening and closing degree of the two shades can be controlled, so that not only the light transmission area of the light output window 111 can be adjusted, but also the up-down position of the light output window 111 can be adjusted.

Both the blind 210 and the blind 220 are composed of a blind box and a curtain cloth. The structure of the window shade 210 will be further described below by taking the window shade as an example. The roll screen box of the window blind 210 includes a roll screen rod and a spiral spring installed inside it, in addition to the window blind housing 211. The shade housing 211 provides a receiving space for the retracted, rolled-in shade 212 and provides a fixation for the roller blind rod and the wrap spring.

The shade housing 211 is provided with an elongated opening for the curtain to be inserted and removed, the width of the opening being slightly greater than the width of the curtain, the curtain being freely insertable and removable, and the shade being extendable through the opening to adjust the extended length. The scroll spring provides retraction force for the window shade, and the retraction force is enough to ensure that the curtain cloth can be retracted to the opening smoothly under the gravity state. The curtain cloth 212 is made of flexible material which is resistant to ultraviolet radiation, the length of the curtain cloth is larger than that of the light output window 111, the width of the curtain cloth is slightly larger than that of the light output window 111, and ultraviolet light of an irradiator can be effectively blocked from being emitted outwards. As shown in fig. 3.

The roller shutter rod and the scroll spring are disposed inside the shade housing 211. The rolling curtain rod can rotate, and the curtain cloth 212 is wound on the rolling curtain rod; as the roller blind lever rotates, the curtain 212 retracts upward into the blind housing 211. One end of the spiral spring is connected to the housing 211 and the other end is connected to the roller blind rod, thereby providing power for retracting the curtain 212. As the curtain 212 is pulled out of the roller blind cassette, the wrap spring is forced to store energy in preparation for retraction of the curtain 212. The structure of the window shade 220 is identical to that of the window shade 210, except that the window shade 220 is drawn from the bottom to the top, and the window shade 220 may be provided with a slightly smaller spiral spring force in consideration of the dead weight of the curtain cloth.

The edges of the two curtains intended for pulling should be able to be fixed to the light output window 111. In this embodiment, a guide rail 410 is respectively installed on the left side and the right side of the box body 110, a slide block 420 is respectively installed on the upper side and the lower side of each guide rail 410, and each slide block is provided with a locking structure. The guide rail 410 provides a path and a limit for the slider 420 so that the slider 420 can slide on the guide rail 410 and be fixed at any position. The left side and the right side of the bottom edge of the curtain cloth positioned above are respectively connected with the sliding blocks above the two guide rails, and the curtain cloth 212 is fixed along with the locking of the two sliding blocks. And because of the elastic force of the spiral spring, the curtain cloth is tensioned and flattened. In a similar way, the left side and the right side of the bottom edge of the curtain cloth positioned below are respectively connected with the sliding blocks below the two guide rails and can be fixed, tensioned and flattened.

The guide 410 is formed with a groove 411 on each side thereof such that the cross-section of the guide 410 is in the shape of an i, as shown in fig. 4. The slider 420 is shaped as shown in fig. 5, and has an i-shaped recess matching the cross-section of the guide rail 410, so that the slider 420 can slide freely on the guide rail 410, but does not slide easily due to its own weight.

An insertion hole 421 is formed in the slider 420 in the direction toward the curtain 212, and as shown in fig. 5, insertion holes of the left and right sliders are respectively used for inserting a positioning protrusion on two sides of the positioning block piece 310. The slider 420 is provided with a threaded hole for mounting the fastening knob 430 in a direction away from the curtain 212, and the slider 420 can be positioned by the fastening knob 430 when adjusted to an arbitrary position on the guide rail 410. The fastening knob 430 shown in fig. 4 is a large-head bolt, and the circumference of the bolt is provided with anti-slip threads 431, so that the fastening knob 430 can be easily screwed, and the curtain 212 can be kept still during phototherapy. As the fastening knob 430 rotates, the bolt head gradually approaches the guide rail 410 and finally abuts against the i-shaped groove on one side, and the front end of the bolt head is fixed with the bottom surface of the groove by static friction force.

The track 410 is provided with a scale, as shown in the enlarged view of the portion of the track in fig. 6, which provides accurate positioning for the operator. The patient usually needs phototherapy irradiation on the front and back surfaces of the body, and the irradiation positions on the front and back surfaces are different. Respectively recording the scale positions of the sliding block when the front and the back of the patient are irradiated for the first time; when the lamp is irradiated next time, the lamp can be conveniently positioned, and the difficulty of back irradiation positioning is avoided.

As shown in fig. 7, the positioning flaps 310 are attached to the edge of the curtain 212 to prevent the light output window 111 from directly contacting the object to be irradiated, which is more suitable for phototherapy. The light rays closer to the ultraviolet fluorescent lamp tubes are more concentrated, the light rays farther away from the ultraviolet fluorescent lamp tubes are more divergent, and when the light rays are in a proper irradiation distance, the light rays of one ultraviolet fluorescent lamp tube are superposed with the light rays emitted by the adjacent ultraviolet fluorescent lamp tubes, so that the light rays of the whole irradiation plane are higher in intensity and more uniform, and the distance is the optimal treatment distance. The optimal treatment distance is 5-20 cm according to the light source, and thus the width of the positioning block 310 is set to be 5-20 cm. At the same time, the positioning flap is also part of the light shield, so the length of the positioning flap 310 is equal to or slightly larger than the width of the light output window 111 of the applicator 100.

The side of the positioning flap 310 facing the light output window 111 has a light reflecting function, as shown in fig. 8. Preferably, an aluminum film is attached to reflect the light irradiated by the light source 120 of the irradiator, so as to improve the intensity of the output light of the irradiator and improve the uniformity of the light. The fixing mode between the two ends of the positioning baffle plate 310 and the sliding block is adjustable: the positioning block piece 310 can be rotated to the horizontal direction or the vertical direction and then fixed. When the patient is in phototherapy, the positioning block piece 310 is turned downwards around the rotating shaft in the insertion hole 421 and adjusted to the horizontal direction, and then it is limited by the bottom support 422, so as to be perpendicular to the curtain cloth 212. When phototherapy is completed and the device is stored, the positioning block piece 310 is turned upwards and adjusted to the vertical direction, and then it is close to the curtain 212, as shown in fig. 9. The two ends of the positioning block piece 310 opposite to the light output window 111 are provided with hook and loop fasteners for attaching the side curtain 330. The positioning baffle 320 has a structure and a function similar to those of the positioning baffle 320, and can be turned upwards to be horizontal and turned downwards to be vertical.

The side curtain 330 is made of a flexible material, the length of the side curtain is slightly longer than that of the light output window 111, the width of the side curtain is consistent with that of the positioning baffle 310, and the width of the side curtain is 5-20 cm. One side of the side curtain 330 has a light reflecting function, which is the same as the light reflecting function of the positioning baffle 310, so as to improve the intensity and uniformity of the output light of the irradiator. One end of the reflective functional surface of the side curtain 330 has a hook and loop fastener, which can be conveniently attached to the hook and loop fastener of the positioning flap 310, so that the positioning flap and the side curtain form a light shield, as shown in fig. 1.

The use method of the light irradiation output adjusting device comprises the following steps:

the method comprises the following steps: from the storage state shown in fig. 9, the operator unscrews the fastening knobs located at the upper portions of the left and right guide rails 410 with his hands and holds them, so that the curtain 210 is pulled upward by the elastic force of the spiral spring to a proper position, and then tightens the fastening knobs again.

Step two: referring to the similar method in the first step, the fastening knobs located at the lower portions of the left and right guide rails 410 are unscrewed by hand and held continuously, so that the shade cloth of the window shade 220 is pulled downward by the elasticity of the spiral spring, and after reaching a proper position, the fastening knobs are screwed again.

Step three: turning the positioning baffle plate 310 downwards until the positioning baffle plate is vertical to the curtain cloth; similarly, the positioning block piece 320 is held and turned upwards until it is perpendicular to the curtain.

Step four: two side blinds are removed, one of which is attached at its upper end to the left side of the positioning flap 310 and the other of which is attached at its upper end to the right side of the positioning flap 310, forming a light shield, as shown in fig. 1.

Step five: according to the treatment requirement, the fastening knob can be unscrewed and then the curtain cloth can be finely adjusted to obtain the most suitable irradiation window.

Step six, the outer edge of the lens hood is close to the affected part, so that light leakage is reduced to the maximum extent; the ultraviolet light source is turned on for phototherapy.

Step seven: after the phototherapy instrument finishes using, take off the side curtain that keeps off of left and right sides, fold and accomodate to clean department. Then, the two positioning retaining pieces are adjusted to be vertical to be close to the curtain cloth, then the fastening knob is unscrewed, the curtain cloth is pulled until the positioning retaining pieces at the two ends are overlapped, and then the sliding block is fastened again, so that the light output window 111 is completely closed, and the dustproof protection effect on the irradiator is achieved. At this time, the state returns to the storage state shown in fig. 9.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.