Medical flashlight

Abstract

The utility model provides a medical flashlight which comprises a body, the body comprises a first end portion and a second end portion, the body defines a central axis extending between the first end portion and the second end portion, and a structure used for supporting a power source and an adjusting circuit is arranged in the body. A light source is arranged at the position, close to the first end, of the body, the light source is electrically connected to the light source adjusting circuit, the light source is designed to generate a light beam in the fixed first illumination direction, the first illumination direction is kept unchanged relative to the central axis of the body, and the light source is electrically connected to the light source adjusting circuit. The adjusting circuit is connected between the power source and the light source and used for controlling and adjusting the light intensity generated by the light source so as to ensure that the illuminance at the position away from the first end by the preset distance reaches a specific preset value, and the problems that an existing medical flashlight is uneven in illumination and uncontrollable in illuminance are solved. And the accuracy and efficiency of medical diagnosis are obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of medical flashlight technology, and in particular to a medical flashlight. Background Technology

[0002] In medical diagnosis, especially in Traditional Chinese Medicine (TCM) examinations, accurate assessment of skin color is crucial. This involves not only observing color changes in affected areas but also comparing the skin color of healthy areas for comprehensive analysis. Accurate skin color identification is of significant reference value for diagnosing various diseases. However, when examining internal passages or cavities such as the throat, nostrils, and ear canals, the deep location and complex structure of these areas often mean that conventional sunlight or indoor lighting cannot provide sufficient intensity or a suitable angle, thus limiting the doctor's clear observation of these areas.

[0003] Traditionally, doctors have relied on flashlights as auxiliary lighting tools to examine areas that are difficult to observe directly. However, existing flashlights have several limitations: First, the color of the light they emit differs significantly from natural sunlight, which may lead to discrepancies between the observed and actual colors, affecting the accuracy of diagnosis; second, some flashlights are not ergonomically designed and are inconvenient to use, increasing the difficulty of operation for doctors; third, the uneven distribution of light in some flashlights can easily produce shadows or bright spots, obscuring or exaggerating details in the observed area, which is also detrimental to accurate diagnosis.

[0004] In view of the problems existing in the above-mentioned technologies, it is particularly important to develop a medical lighting tool that can overcome these defects and provide high color rendering, ease of operation, and uniform light distribution. Therefore, we are committed to developing a medical flashlight designed to meet the high standards of light required in medical diagnosis. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a medical flashlight to solve the problems mentioned above in the background art.

[0006] A medical flashlight includes a body comprising a first end and a second end, the body defining a central axis extending between the first end and the second end, and an internal structure for supporting a power supply and an adjustment circuit. A light source is disposed on the body adjacent to the first end, and the light source is electrically connected to the light source adjustment circuit. The light source is designed to generate a light beam along a fixed first illumination direction, which remains constant relative to the central axis of the body. The adjustment circuit is connected between the power supply and the light source and is used to control and adjust the light intensity generated by the light source to ensure that the illuminance at a predetermined distance from the first end reaches a specific preset value.

[0007] Compared with the prior art, the beneficial effects of this application are as follows:

[0008] The LED beads are selected with a color temperature of 5000K and a color rendering index (CRI) of ≥85, which have been repeatedly compared and selected by clinicians. The LED beads have a small light emission range, similar to a point light source.

[0009] Front-end structure without lens and spotlight cup:

[0010] The flashlight's front end contains only the light source, without using any lenses or spotlight cups. This design eliminates the uneven light distribution problems that can be introduced by traditional optical elements, ensuring a more uniform and consistent illumination from the light source.

[0011] Precise illuminance control:

[0012] The built-in adjustment circuit allows for precise control and adjustment of the light intensity produced by the light source. This circuit is specially designed to ensure that the illuminance at a preset distance (20cm to 50cm) from the first end of the flashlight reaches a specific preset value (60Lux to 520Lux). This range has been carefully selected to meet the usage habits and needs of doctors, especially traditional Chinese medicine practitioners, in actual clinical practice.

[0013] Improve diagnostic accuracy:

[0014] Uniform lighting and precise illuminance control allow the colors of illuminated objects to closely approximate their natural appearance, thereby improving the accuracy of doctors' visual judgments. This is particularly important for traditional Chinese medicine diagnoses that require accurate identification of skin color differences.

[0015] Enhance user experience:

[0016] By eliminating the lens and spotlight reflector, the flashlight's front design is more streamlined, reducing its size and weight, and improving grip comfort and ease of operation. At the same time, the more even illumination reduces eye strain for doctors, further enhancing user comfort.

[0017] In summary, the provided medical high color rendering flashlight not only solves the problems of uneven illumination and uncontrollable illuminance in existing medical flashlights, but also features an optimized design specifically tailored to the actual needs of doctors, significantly improving the accuracy and efficiency of medical diagnosis.

[0018] Furthermore, the regulating circuit includes an inductor, a voltage regulator, a resistor, a capacitor, and a load;

[0019] The inductor is connected between the input of the power supply and the input of the voltage regulator;

[0020] The input terminal of the voltage regulator is connected to the output terminal of the inductor, and its output terminal is connected to the load. The voltage regulator is used to stabilize the input voltage of the power supply to a fixed output voltage.

[0021] The resistor is connected between the output of the voltage regulator and the load, and the resistor is used to limit the current or to simulate the load.

[0022] The capacitor is connected between the output terminal of the voltage regulator and ground, and is used to filter out high-frequency noise in the output of the voltage regulator.

[0023] Furthermore, the body is connected to an elastic clip via a thread at a position near the first end, and an annular limiting groove is provided on the outer side of the body adjacent to the elastic clip, with a gap formed between the annular limiting groove and the elastic clip.

[0024] Furthermore, the preset distance is 20cm to 50cm, and the preset value is 60Lux to 520Lux.

[0025] Furthermore, the body is provided with a accommodating space for installing a power supply and the regulating circuit, wherein the power supply includes a 1.2V nickel-metal hydride battery or a 1.5V alkaline battery.

[0026] Furthermore, the second end of the body includes a cover, the bottom of which is threadedly connected to the inner edge of the body, allowing the power supply to be installed inside the body.

[0027] Furthermore, the flashlight also includes an actuator and a silicone sleeve disposed on the main body. The actuator is used to control the switching operation of the flashlight light source, and the silicone sleeve is disposed near the first end to prevent the flashlight from being damaged by impact. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the medical flashlight of this utility model;

[0029] Figure 2 This is a three-dimensional structural diagram of the medical flashlight of this utility model from another perspective.

[0030] Figure 3 This is a circuit diagram of the regulating circuit of this utility model;

[0031] Figure 4 This is a partial sectional front view of the medical flashlight of this utility model.

[0032] Explanation of main component symbols: 10, body; 11, first end; 12, second end; 13, silicone sleeve; 14, annular limiting groove; 15, elastic clamp; 16, accommodating space; 17, cover; 19, actuator; 20, power supply; 30, adjustment circuit; 40, central axis; 50, light source. Detailed Implementation

[0033] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0034] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Please see Figure 1 and Figure 2 The image shows a medical flashlight according to an embodiment of the present invention, comprising a body 10, the body 10 including a first end 11 and a second end 12, the body 10 defining a central axis 40 extending between the first end 11 and the second end 12, the body 10 having a structure inside for supporting a power supply 20 and an adjustment circuit 30; the body 10 having a light source 50 disposed near the first end 11, the light source 50 being electrically connected to the light source 50 adjustment circuit 30, the light source 50 being designed to generate a light beam along a fixed first illumination direction, the first illumination direction being constant relative to the central axis 40 of the body 10, the adjustment circuit 30 being connected between the power supply 20 and the light source 50, and being used to control and adjust the light intensity generated by the light source 50 to ensure that the illuminance at a preset distance from the first end 11 reaches a specific preset value.

[0037] It's worth noting that, firstly, the flashlight's front end only features the light source 50, abandoning the traditional design of lenses and spotlight cups. This innovation allows the light emitted by the light source 50 to directly and evenly illuminate the observation area. This design avoids light refraction and focusing during propagation, effectively eliminating shadows and bright spots, thus ensuring uniform illumination of the observation area. Doctors can clearly see every detail, which is crucial for accurately determining skin color.

[0038] Secondly, the flashlight is equipped with an advanced adjustment circuit 30, allowing doctors to precisely control and adjust the light intensity produced by the light source 50 according to actual needs. This function gives the flashlight great flexibility, allowing doctors to adjust the illuminance to a specific preset range (e.g., 60 Lux to 520 Lux) based on observation distance and diagnostic requirements. At a preset distance 11 from the first end of the flashlight (e.g., 20cm-50cm), the illuminance reaches its optimal state, neither too strong nor too weak, providing ideal lighting conditions for doctors.

[0039] Finally, this flashlight is designed with the usage habits and requirements of traditional Chinese medicine practitioners in mind. Through precise light intensity adjustment and uniform light distribution, the flashlight perfectly adapts to the specific lighting needs of traditional Chinese medicine practitioners during diagnosis. This not only improves the efficiency and accuracy of diagnosis but also enhances their comfort and satisfaction during use.

[0040] In summary, this medical high color rendering flashlight, through its innovative design and advanced functions, achieves significant beneficial effects such as uniform illumination, precisely adjustable light intensity, and suitability for the usage habits of traditional Chinese medicine practitioners. These effects collectively enhance the flashlight's application value in medical diagnosis, providing doctors with a more precise and efficient lighting solution.

[0041] In this embodiment, the preset distance is 20cm-50cm, and the preset value is 60Lux~520Lux. The light source 50 is a high color rendering index (CRI) midday sunlight color temperature PMD LED, with a small light-emitting area, approximating a point light source 50.

[0042] Please see Figure 3 Specifically, the regulating circuit 30 includes an inductor, a voltage regulator, a resistor, a capacitor, and a load;

[0043] The inductor is connected between the input of the power supply 20 and the input of the voltage regulator;

[0044] The input terminal of the voltage regulator is connected to the output terminal of the inductor, and its output terminal is connected to the load. The voltage regulator is used to stabilize the input voltage of the power supply 20 to a fixed output voltage.

[0045] The resistor is connected between the output of the voltage regulator and the load, and the resistor is used to limit the current or to simulate the load.

[0046] The capacitor is connected between the output terminal of the voltage regulator and ground, and is used to filter out high-frequency noise in the output of the voltage regulator.

[0047] The components of power supply 20 include input (VDD), inductor (L1), voltage regulator (U1), resistor (R1), load (L+), and ground (GND). In this embodiment, the voltage regulator U1 is model 2304, the input of power supply 20 is the battery input, and the load is the LED bead.

[0048] This circuit uses power supply 20 filtering and voltage regulation technology to ensure that the illuminance of the LEDs remains between 60 and 520 Lux within a distance range of 20cm to 50cm. Voltage regulator U1 provides a stable output voltage, inductor L1 and capacitor C1 filter out noise in power supply 20, and resistor R1 limits the current, working together to ensure the consistency and stability of the LED brightness.

[0049] Please see Figure 3 Furthermore, to allow the flashlight to be hung, the main body is threadedly connected to an elastic clip near the first end. An annular retaining groove is provided on the outer side of the main body adjacent to the elastic clip, forming a gap between the annular retaining groove and the elastic clip. This design allows users to easily hang the flashlight on a suitable hook or other support, increasing flexibility and convenience, especially in medical environments, making it easy for doctors to access and hang the flashlight at any time.

[0050] In this embodiment, the main body 10 is provided with a accommodating space 16, which is used to install the power supply 20 and the regulating circuit 30. The power supply 20 includes a 1.2V nickel-metal hydride battery or a 1.5V alkaline battery.

[0051] Please see Figure 4 Furthermore, to facilitate battery replacement, the second end 12 of the body 10 includes a cover 17, the bottom of which is threadedly connected to the inner edge of the body 10, so that the power supply 20 can be installed inside the body 10.

[0052] Furthermore, the flashlight also includes an actuator 19 and a silicone sleeve 13 disposed on the body 10. The actuator 19 is used to control the switching operation of the flashlight light source 50, and the silicone sleeve 13 is disposed near the first end 11 to prevent the flashlight from being damaged by impact. The silicone sleeve 13 at the front end of the flashlight prevents damage to the LED bulb after impact. Specifically, the actuator 19 is mounted on the body 10 and can be a button, toggle switch, or other form of operating device, allowing the user to conveniently control the on and off of the light source 50. This design improves user convenience, especially in medical environments where quickly switching the state of the light source 50 is crucial for diagnostic procedures. It is made of soft, cushioning silicone material. Its main function is to provide protection when the flashlight is subjected to external impact, reducing the risk of LED bulb damage due to impact.

[0053] In summary, the medical flashlight in the above embodiments of this utility model has the following beneficial effects:

[0054] Front-end structure without lens and spotlight cup:

[0055] The flashlight's front end features only a light source 50, without using any lenses or spotlight cups. This design eliminates the uneven light distribution problems that traditional optical elements may introduce, ensuring a more uniform and consistent illumination from the light source 50.

[0056] Precise illuminance control:

[0057] The built-in adjustment circuit 30 allows for precise control and adjustment of the light intensity produced by the light source 50. This circuit is specially designed to ensure that the illuminance at a preset distance (20cm to 50cm) from the first end 11 of the flashlight reaches a specific preset value (60Lux to 520Lux). This range has been carefully selected to meet the usage habits and needs of doctors, especially traditional Chinese medicine practitioners, in actual clinical practice.

[0058] Improve diagnostic accuracy:

[0059] Uniform lighting and precise illuminance control allow the colors of illuminated objects to closely approximate their natural appearance, thereby improving the accuracy of doctors' visual judgments. This is particularly important for traditional Chinese medicine diagnoses that require accurate identification of skin color differences.

[0060] Enhance user experience:

[0061] By eliminating the lens and spotlight reflector, the flashlight's front design is more streamlined, reducing its size and weight, and improving grip comfort and ease of operation. At the same time, the more even illumination reduces eye strain for doctors, further enhancing user comfort.

[0062] It is evident that the provided medical high color rendering flashlight (medical flashlight) not only solves the problems of uneven illumination and uncontrollable illuminance existing in existing medical flashlights, but also has been specially optimized for the actual needs of doctors, significantly improving the accuracy and efficiency of medical diagnosis.

[0063] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A medical flashlight, characterized in that The utility model provides a flashlight, which comprises a body, the body comprising a first end and a second end, the body defining a central axis extending between the first end and the second end, the body being internally configured with a structure for supporting a power supply and a regulating circuit; the body is provided with a light source adjacent to the first end, and the light source is connected to the light source regulating circuit, the light source being designed to generate a light beam along a fixed first illumination direction, the first illumination direction remaining unchanged relative to the central axis of the body, the regulating circuit being connected between the power supply and the light source and being used for controlling and adjusting the light intensity generated by the light source to ensure that the illumination at a preset distance from the first end reaches a specific preset value.

2. The medical flashlight of claim 1, wherein, The regulating circuit comprises an inductor, a voltage regulator, a resistor, a capacitor and a load. The inductor is connected between the input of the power supply and the input of the voltage regulator. The input of the voltage regulator is connected to the output of the inductor, and the output of the voltage regulator is connected to the load, the voltage regulator being used for stabilizing the input voltage of the power supply to a fixed output voltage. The resistor is connected between the output of the voltage regulator and the load, the resistor being used for limiting the current or as a load simulation. The capacitor is connected between the output of the voltage regulator and the ground, the capacitor being used for filtering high-frequency noise in the output of the voltage regulator.

3. The medical torch of claim 1, wherein, The body is threadedly connected with an elastic clip adjacent to the first end, the body being provided with an annular limiting groove adjacent to the outer side of the elastic clip, and a space being formed between the annular limiting groove and the elastic clip.

4. The medical torch of claim 1, wherein, The preset distance is 20 cm-50 cm, and the preset value is 60 Lux-520 Lux.

5. The medical torch of claim 1, wherein, The body is provided with a containing space for mounting the power supply and the regulating circuit, the power supply comprising a 1.2 V nickel-hydrogen battery or a 1.5 V alkaline battery.

6. The medical torch of claim 1, wherein, The second end of the body comprises a cover, the bottom of the cover being threadedly connected with the inner edge of the body, so that the power supply can be mounted in the body.

7. The medical torch of claim 1, wherein, The flashlight further comprises an actuator and a silica gel sleeve provided on the body, the actuator being used for controlling the on-off operation of the light source of the flashlight, and the silica gel sleeve being provided adjacent to the first end to prevent the flashlight from being damaged due to impact.

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