Light shutter for measuring ultraviolet irradiation time

Abstract

The utility model provides a dimmer for measuring ultraviolet irradiation time. The dimmer comprises a first shading piece, a plurality of irradiation holes are formed in the first shading piece, and a second shading piece is arranged on the first shading piece in a sliding mode in the direction of the irradiation holes. According to the ultraviolet irradiation time measuring light chopper, an operator can accurately control the irradiation time by accurately controlling the position of the second light shading piece. This accuracy is achieved by the sliding mechanism of the second shade and the layout of the illumination holes. The size of each illumination aperture and a corresponding shade portion on the second shade are precisely designed to ensure that each movement can correspond to a determined illumination time change.

Description

Technical Field

[0001] The utility model relates to the technical field of medical irradiation, in particular to a shade device for measuring ultraviolet irradiation time. Background Art

[0002] The protection principle of medical exposure emphasizes that all kinds of medical exposure must be carried out correctly and reasonably, all unnecessary exposure must be avoided as much as possible, and medical exposure accidents must be strictly prevented. For diagnostic medical exposure with legitimate reasons, while obtaining the required high-quality diagnostic information, efforts must be made to reduce the dose to the examinee to the lowest level that can be reasonably achieved.

[0003] Ultraviolet therapy has the following effects: ① sterilization, anti-inflammatory, enhancing the body's defense and immune function; ② analgesia; ③ desensitization; ④ accelerated tissue regeneration; ⑤ promotion of vitamin D production, prevention and treatment of rickets and osteomalacia; ⑥ photosensitivity reaction, etc. It is widely used in clinical practice. At present, when medical staff use ultraviolet lamps to promote the healing or disinfection of patients' pressure sores, if they directly use ultraviolet lamps for irradiation, the irradiation time is not clear and the irradiation dose cannot be accurately determined. First, there have been skin burns in the past, and second, the irradiation time is insufficient, which seriously affects the treatment effect of patients.

[0004] The basis for the therapeutic effect of ultraviolet therapy depends on the irradiation dose, which is determined by the irradiation time and irradiation intensity. In clinical application, the irradiation intensity is fixed, that is, the power of the ultraviolet lamp is fixed, so the irradiation time is the main factor affecting the irradiation dose. However, when it is currently used for treatment, the specific irradiation time cannot be accurately determined, which will lead to improper ultraviolet irradiation and adverse consequences, manifested as (1) Too long irradiation time: ① It will damage the skin and eyes; ② It will cause gene mutations and increase the chance of cell cancer; ③ It will cause allergic reactions, such as redness, itching, papules and other symptoms. (2) The irradiation time is too short: The treatment intensity is too low and there is no therapeutic effect. Therefore, when applying ultraviolet therapy, the irradiation time and dose that patients can accept need to be resolved. Utility Model Content

[0005] The utility model provides a shade device for measuring ultraviolet irradiation time, which solves the problems mentioned in the above background technology.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A shading device for measuring ultraviolet irradiation time comprises a first shading member; a plurality of irradiation holes are formed on the first shading member, and a second shading member is slidably arranged on the first shading member along the direction of the plurality of irradiation holes.

[0008] Furthermore, a handle is provided on the outer side of the first shading member.

[0009] Furthermore, the first shading member, the second shading member and the handle are plate-shaped members.

[0010] Furthermore, guide strips are provided on both sides of the top of the handle, and the guide strips extend to a side of the first shading member away from the handle and are flush with the side of the first shading member, and both sides of the second shading member slide between adjacent guide strips.

[0011] Furthermore, the adjacent sides of the two guide strips protrude inwards and cooperate with the first shading member or the handle to form a guide groove, and the second shading member has steps on both sides, which are adapted to the inner sides of the guide groove and slide along it.

[0012] Beneficial effects of the technical solution provided by this application:

[0013] The UV irradiation time determination shade allows the operator to achieve precise control of the irradiation time by precisely controlling the position of the second shade. This precision is achieved through the sliding mechanism of the second shade and the layout of the irradiation holes. The size of each irradiation hole and the corresponding shielding part on the second shade are precisely designed to ensure that each movement corresponds to a certain irradiation time change. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of a sunshade for measuring ultraviolet irradiation time of the utility model;

[0016] Figure 2 The utility model is a schematic diagram of the explosion of the ultraviolet irradiation time measuring light shield.

[0017] In the figure: 100 is a first light shielding member, 110 is an irradiation hole, 120 is a second light shielding member, 130 is a handle, 140 is a guide bar, 150 is a guide groove, and 160 is a step. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1-2 A shading device for measuring ultraviolet irradiation time includes a first shading member 100; a plurality of irradiation holes 110 are opened on the first shading member 100, and a second shading member 120 is slidably arranged on the first shading member 100 along the direction of the plurality of irradiation holes 110.

[0020] The first light shielding member 100 is a main component of the device, and a plurality of irradiation holes 110 thereon allow ultraviolet rays to pass through and irradiate the patient's skin. The ultraviolet rays generated by the ultraviolet lamp pass through these irradiation holes 110 to form beams of light that directly irradiate the treatment area.

[0021] The second shading member 120 can slide along the direction of the irradiation hole to block part or all of the irradiation hole 110, thereby adjusting the ultraviolet time dose irradiated on the skin. By changing the position of the second shading member 120, the degree of shading of the irradiation hole 110 can be controlled, thereby adjusting the irradiation time.

[0022] In some embodiments, a handle 130 is disposed on the outer side of the first shading member 100 .

[0023] The handle 130 provides an operator with a component that is easy to hold and operate. The design of the handle 130 allows medical personnel to easily control the sliding of the second shading member 120 to adjust the irradiation time.

[0024] In some embodiments, guide bars 140 are provided on both sides of the top of the handle 130, and the guide bars 140 extend to the side of the first light shielding member 100 away from the handle 130 and are flush with it, and the two sides of the second light shielding member 120 slide between adjacent guide bars 140. The adjacent sides of the two guide bars 140 protrude inwards and cooperate with the first light shielding member 100 or the handle 130 to form a guide groove 150, and the two sides of the second light shielding member 120 have steps 160, which are adapted to the inner sides of the guide groove 150 and slide along it.

[0025] The guide bar 140 and the guide groove 150 ensure that the second shading member 120 can slide smoothly and accurately along the predetermined path. The design of the guide bar 140 and the guide groove 150 forms a stable sliding system, so that the second shading member 120 will not deviate from the track during the sliding process, ensuring the accuracy and repeatability of the operation.

[0026] The steps 160 are adapted to the inner sides of the guide groove 150 to provide stable support and sliding guide for the second light shielding member 120. The design of the steps 160 makes the second light shielding member 120 more stable when sliding, reduces shaking and errors, and ensures accurate control of the irradiation time.

[0027] In some embodiments, the first shading member 100 , the second shading member 120 , and the handle 130 are plate-shaped members.

[0028] The design of the plate-shaped member enables the first shading member 100 and the second shading member 120 to provide a uniform shielding effect. When the second shading member 120 slides, it can evenly shield the irradiation hole 110 on the first shading member 100, ensuring the consistency and uniformity of ultraviolet irradiation. The plate-shaped handle 130 can provide a larger gripping area, allowing medical staff to more stably and accurately control the sliding of the second shading member 120, facilitating fine adjustment.

[0029] Through the combination of the above technical features, the ultraviolet irradiation time measuring shade can accurately control the irradiation time. In practical applications, medical staff can determine the weakest erythema reaction of human skin through the following steps to determine the appropriate irradiation time:

[0030] Ensure that the ultraviolet irradiation equipment has been set up according to the treatment requirements, including the power and irradiation distance of the ultraviolet lamp. Slide the second shading member 120 to the topmost position of the first shading member 100, at which time all irradiation holes 110 are completely blocked by the second shading member 120, and no ultraviolet rays can pass through.

[0031] When the ultraviolet irradiation device is started, the second shading member 120 starts from the top position and gradually slides downward to expose the irradiation hole. Medical staff can set different time nodes to adjust the position of the second shading member according to the treatment needs and the patient's skin type. For example, every 5 seconds or 10 seconds can be set as an adjustment time node, but this time node can be adaptively adjusted according to actual conditions.

[0032] At each time point, the medical staff adjusts the second light shielding member 120 to slide downward according to the patient's skin reaction, gradually increasing the number of exposed irradiation holes 110, thereby increasing the irradiation intensity. During the irradiation process, the medical staff needs to closely observe the patient's skin to look for signs of the weakest erythema reaction, that is, the minimum irradiation intensity at which the skin begins to show slight erythema.

[0033] Since the second shading member 120 slides from top to bottom, the medical staff can clearly observe the development of the erythema reaction on the skin. When the weakest erythema reaction is observed on the skin, the irradiation time and the position of the second shading member 120 are immediately recorded. This time point is the appropriate dose to achieve the treatment effect, which can be used as a reference for subsequent treatment.

[0034] Based on the measured minimum erythema reaction time, medical staff can adjust the treatment plan to ensure that the patient receives safe and effective ultraviolet radiation treatment. Adjustments to the treatment plan may include irradiation time, irradiation intensity, and treatment frequency. Through the above steps, medical staff can accurately measure the weakest erythema reaction of human skin and determine the best irradiation time based on this to achieve the treatment effect while avoiding adverse reactions. This method provides a flexible and precise treatment plan that helps improve treatment effects and patient satisfaction.

[0035] In addition, in order to adapt to the decentralized characteristics of the skin's response to ultraviolet irradiation, the present invention optimizes the layout of the irradiation holes 110. Specifically, in order to avoid the difficulty in distinguishing skin reactions due to the close spacing between adjacent irradiation holes 110, the present invention provides recommended values ​​for the size and spacing of the irradiation holes 110. Preferably, the size of the irradiation holes 110 is 2cm×0.5cm, and the spacing between adjacent irradiation holes 110 is 1cm. However, these sizes and spacings are not fixed, but can be adjusted according to actual application requirements to adapt to different treatment scenarios and specific conditions of patients.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A shading device for measuring ultraviolet irradiation time, comprising a first shading member (100); characterized in that: The first light shielding member (100) is provided with a plurality of irradiation holes (110), and a second light shielding member (120) is slidably arranged on the first light shielding member (100) along the direction of the plurality of irradiation holes (110).

2. The ultraviolet irradiation time measuring light shield according to claim 1, characterized in that: A handle (130) is provided on the outer side of the first shading member (100).

3. The ultraviolet irradiation time measuring light shield according to claim 2, characterized in that: The first shading member (100), the second shading member (120) and the handle (130) are plate-shaped members.

4. The ultraviolet irradiation time measuring light shield according to claim 2, characterized in that: Guide bars (140) are provided on both sides of the top of the handle (130), and the guide bars (140) extend to a side of the first shading member (100) away from the handle (130) and are flush with it, and both sides of the second shading member (120) slide between adjacent guide bars (140).

5. The ultraviolet irradiation time measuring light shield according to claim 4, characterized in that: The adjacent sides of the two guide strips (140) protrude inwards and cooperate with the first shading member (100) or the handle (130) to form a guide groove (150), and the two sides of the second shading member (120) have steps (160), which are adapted to the inner sides of the guide groove (150) and slide along it.

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