Body position projection lamp for diagnosis and treatment bed

Abstract

A body position projection lamp for a diagnosis and treatment bed comprises an installation base, an adjustable lamp body support, a main lamp shell and an optical projection module arranged in the main lamp shell. The mounting base is of a U-shaped structure, and an adjustable clamping piece is arranged in the mounting base and used for being detachably fixed to the edge of a diagnosis and treatment bed; the lamp body support comprises a vertical rod fixed to the mounting base, a vertically-moving rod connected in a sliding mode, an angle rod arranged in a hinged mode and an extension rod, and the height and the angle are convenient to adjust. And the main lamp shell is fixedly connected with the extension rod. The optical projection module comprises a high-brightness LED light source, a rotatable polygonal wheel disc and a push-pull zoom cylinder, and different body position contour lines are carved on the surface of the wheel disc; a reflection type infrared pair tube is arranged at the bottom of the main lamp shell and used for detecting the body position deviation of a patient and being in linkage with the LED light source for color changing prompt. The body position projection positioning device is reasonable in structure, flexible in adjustment, capable of effectively improving body position projection positioning accuracy and interactive feedback capacity and suitable for various clinical body position guide scenes.

Description

Technical Field

[0001] The utility model belongs to the field of medical devices, and particularly relates to a body position projection lamp for a diagnostic and treatment bed. Background Art

[0002] With the diversified and refined development of clinical diagnosis and treatment operations, patients often need to be placed in specific body positions during treatment, examination or rehabilitation for operations such as puncture, injection, imaging positioning, and body surface marking. Traditional body position guidance mostly relies on manual instructions, drawing demonstrations or language prompts. Patients' understanding of body position instructions often deviates due to personal cognitive differences, unclear medical terms or communication barriers, thus affecting the diagnosis and treatment efficiency and safety.

[0003] At present, devices such as laser locators and ground projectors have been introduced in some medical scenarios to assist body position guidance. However, most of these devices are large in size and have a single fixing method, making it difficult to adapt to standard diagnostic and treatment beds and having limited adjustment freedom. In addition, some image projection devices only have a single pattern output function, cannot quickly switch body position graphics according to different operation requirements, and lack a real-time feedback mechanism, unable to identify the actual body position deviation of patients, resulting in the inability to timely correct positioning errors.

[0004] In terms of device structure, most existing body position indication devices adopt an integrated non-adjustable bracket, making it difficult to adjust the projection angle or focal length in multiple directions and having poor flexibility in use. Another part of the devices do not consider the hospital space limitations and the complexity of the bed layout, and their installation methods do not have the capabilities of being detachable, movable or height-adjustable, resulting in limited clinical applicability. Therefore, there is still obvious room for improvement in the accuracy, flexibility and feedback interactivity of existing technologies in body position guidance. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the utility model provides a body position projection lamp for a diagnostic and treatment bed, effectively solving the problems of insufficient positioning accuracy, limited adjustment range, inconvenient pattern replacement and lack of feedback on patients' body position deviation of existing body position guidance devices.

[0006] The technical solution adopted by the utility model to solve the above problems is as follows:

[0007] A body position projection lamp for a diagnostic and treatment bed, comprising:

[0008] An installation base, the shape of the installation base is "C", and there are two left and right clips that can adjust the vertical position inside the installation base for detachably installing on the edge of the diagnostic and treatment bed;

[0009] An adjustable lamp body bracket includes a vertical rod fixed to a mounting base, a vertically adjustable vertical sliding rod inside the vertical rod, an adjustable tilting angle rod at the top of the vertical sliding rod, and an extension rod inside the tilting angle rod that can be adjusted along the axial direction of the tilting angle rod.

[0010] The main lamp housing and the extension rod are fixedly connected.

[0011] The main light housing contains an optical projection module, which includes: a high-brightness LED light source; a rotatable and adjustable transparent polygonal wheel with body contour lines laser-engraved on its surface; and a push-pull adjustable zoom tube.

[0012] A reflective infrared pair is located at the bottom of the main lamp housing and is used to detect patient positional shifts and trigger the LED indicator light to change color.

[0013] Preferably, the bottom of the mounting base is threaded upwards with two clamping screws on the left and right sides. The clamping screws pass through the middle of the mounting base and are rotatably connected to the corresponding clamping pieces. Rubber anti-slip pads are respectively provided on the top of the clamping pieces and the upper inner side of the mounting base.

[0014] Preferably, the vertical moving rod is slidably connected inside the vertical rod, and the upper side of the vertical rod is threaded with fixing screws for fixing the vertical rod and the vertical moving rod.

[0015] Preferably, the extension rod is slidably connected inside the angle rod; the front side of the angle rod is threaded with a positioning screw for fixing the angle rod and the extension rod.

[0016] Preferably, the middle part of the angle rod is hinged to the top of the vertical moving rod; a slider that can move along the axial direction of the angle rod is slidably connected to the outer circumference of the rear side of the angle rod, an angle support rod is hinged to the bottom of the slider, and the end of the angle support rod is hinged to the upper side of the vertical moving rod.

[0017] The slider has an inwardly threaded connection on its outer side, which is used to fix the angle rod and the slider.

[0018] Preferably, a cylindrical limiting cylinder is fixedly connected to the bottom of the main lamp housing, the zoom cylinder is slidably connected inside the limiting cylinder, and an adjusting screw for fixing the limiting cylinder and the zoom cylinder is threaded inward on the outer side of the limiting cylinder.

[0019] Preferably, the optical projection module is located inside the limiting cylinder; a rotating shaft is rotatably connected to the bottom of the main lamp housing, the tail end of the rotating shaft is located inside the limiting cylinder, and the tail end of the rotating shaft is coaxially and fixedly connected to the polygonal wheel; the high-brightness LED light source is located at the center of the polygonal wheel, and the high-brightness LED light source is fixed to the bottom of the main lamp housing by a support.

[0020] Preferably, a polygonal positioning block is coaxially and fixedly connected to the head end of the rotating wheel shaft. The polygonal positioning block and the longitudinal section shape of the deformable wheel disc are similar and the edges are parallel. The main lamp housing is fixedly connected with two positioning pins on the left and right. A vertically movable positioning piece is arranged below the polygonal positioning block. The positioning piece is slidably connected to both positioning pins, and a positioning spring is sleeved on the outer periphery of the positioning pin on the lower side of the positioning piece.

[0021] Preferably, the polygonal wheel disc is a regular octagon transparent acrylic plate, and its eight edges are all parallel to the axis of the rotating wheel shaft. A D-shaped through hole is opened at the center of the wheel disc and is in clearance fit with the D-shaped shaft head of the rotating wheel shaft. The body position contour line laser engraved on the surface of the wheel disc penetrates through the plate thickness direction, and the surface roughness Ra of the engraving area is ≥3.2μm.

[0022] Preferably, the zoom cylinder is a cylinder with openings at both ends, and its outer wall is provided with anti-slip lines, and a limiting convex ring is provided at the front end of the inner wall. A first lens is provided at one end of the limiting cylinder close to the main lamp housing, and a second lens is provided at one end of the zoom cylinder close to the projection end. The transmitting end and the receiving end of the reflective infrared pair tube are respectively embedded on both sides of the bottom of the main lamp housing, and the transmitting direction forms a 30° angle with the axis of the limiting cylinder.

[0023] The structure of the present invention is novel, ingeniously conceived, simple and convenient to operate, and has the following advantages compared with the prior art:

[0024] 1. The device realizes the firm installation of the edge of the examination couch with different thicknesses through the "C"-shaped mounting base, the clip with adjustable height and the clamping screw. The base structure is compact and occupies a small space. At the same time, a rubber anti-slip pad is provided to enhance the stability and adaptability, and avoid loosening or slipping during use.

[0025] 2. The device adopts a four-stage adjustable bracket structure of a vertical rod, a vertical moving rod, an angle rod and an extension rod, and a plurality of hinge joints, locking screws and strut support mechanisms are provided at the转接位置 (it seems there is a wrong expression here, maybe it should be "connection position"), which can realize the fine adjustment and stable fixation of the lamp body in multiple directions and angles, ensure that the light source can be accurately projected onto the target body position area, and improve the application flexibility and operation efficiency.

[0026] 3. The device internally sets a replaceable polygonal wheel disc driven by a rotating wheel shaft, and clear body position patterns are laser engraved on the wheel disc. Structurally, a positioning and limiting mechanism composed of a positioning block, positioning pins and springs is adopted to ensure that the wheel disc can be quickly positioned and stay stably when the pattern is switched.配合可滑动调节的变焦筒与光学透镜组 (it seems there is a wrong expression here, maybe it should be "cooperating with the slidable adjustable zoom cylinder and the optical lens group"), it realizes the precise control of the size and clarity of the projected image. The structure is reasonable and the operation is convenient, significantly improving the clarity and accuracy of the pattern guiding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the first axonometric drawing of a body position projection lamp for an examination couch of the present invention.

[0028] Figure 2 This is a second axonometric view of a position projection lamp for a treatment bed according to the present invention.

[0029] Figure 3 This is an isometric view of the mounting base and connecting components of a position projection lamp for a treatment bed according to the present invention.

[0030] Figure 4 This is an isometric view of the angle rod and its connecting components of a position projection light for a treatment bed according to the present invention.

[0031] Figure 5 This is an isometric view of the extension rod and connecting components of a position projection lamp for a treatment bed according to the present invention.

[0032] Figure 6 This is an isometric view of the main lamp housing and its connecting components of a position projection lamp for a treatment bed according to the present invention.

[0033] Figure 7 This is an isometric view of the deformable wheel and its connecting components of a position projection lamp for a treatment bed according to the present invention.

[0034] In the attached diagram: 1-Mounting base, 2-Clamping plate, 3-Vertical rod, 4-Vertical moving rod, 5-Angle rod, 6-Extension rod, 7-Main lamp housing, 8-Optical projection module, 9-Zoom tube, 10-Fixing screw, 11-Clamping screw, 12-Slider, 13-Angle support rod, 14-Locking screw, 15-Positioning screw, 16-Adjusting screw, 17-Rotating wheel shaft, 18-Polygonal positioning block, 19-Positioning piece, 20-Positioning pin, 21-Positioning spring, 22-Polygonal wheel, 23-High-brightness LED light source, 24-Support. Detailed Implementation

[0035] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0036] like Figures 1 to 7As shown, this utility model provides a positioning projection light for a treatment bed, including a mounting base 1, a lamp support, a main lamp housing 7, and an optical projection module 8 and a reflective infrared pair disposed inside the main lamp housing 7. The mounting base 1 has a "U"-shaped structure, with clamping pieces 2 on both sides of the base. Each clamping piece 2 is rotatably connected to the middle of the base 1 by a clamping screw 11. Rubber anti-slip pads are provided on the top of the clamping piece 2 and the upper inner side of the base 1 to enhance the clamping force and prevent slippage, enabling quick clamping and disassembly of the edges of different models of treatment beds. The lamp holder includes a vertical rod 3 extending upward from the base 1. A vertical sliding rod 4 is slidably connected inside the vertical rod 3, and its vertical height is adjustable via a fixing screw 10 at the top. The top of the vertical sliding rod 4 has a tilting angle rod 5 that can flip back and forth. The middle of the angle rod 5 is hinged to the vertical sliding rod 4 and is structurally supported by an angle support rod 13. The support rod 13 is connected to the rear outer periphery of the angle rod 5 via a slider 12. The slider 12 moves axially along the angle rod via a locking screw 14 to adjust the tilting angle. An extension rod 6 is slidably connected inside the angle rod 5 and is fixed by a positioning screw 15, allowing for adjustment of the projection distance. The main lamp housing 7 is fixedly installed at the end of the extension rod 6 and contains an optical projection module 8. The module includes a high-brightness LED light source 23, a centrally located support 24, a rotating shaft 17, and a polygonal wheel 22 coaxially connected to it. The wheel 22 is made of transparent acrylic material, and its surface is engraved with multiple different body contour lines. The pattern is switched by rotating the rotating shaft 17. The wheel positioning structure includes a polygonal positioning block 18, upper and lower positioning plates 19, and a spring-loaded positioning pin 20 to ensure precise pattern alignment. A limiting cylinder is also provided at the bottom of the main lamp housing 7, with a zoom cylinder 9 slidably connected inside and its position adjusted by an adjusting screw 16. An internal dual-lens structure enables light focusing and pattern projection size adjustment. Reflective infrared photocells are embedded on both sides of the bottom of the lamp housing, arranged in pairs. The angle between the transmitting and receiving ends is set at 30° to detect human body contour deviation. If an abnormality is detected, the LED light source changes color to indicate the deviation, assisting medical personnel in timely correction of the patient's position.

[0037] like Figures 1 to 5 As shown, clamping screws 11 are threaded upwards on both the left and right sides of the bottom of the mounting base 1. The clamping screws 11 penetrate vertically through the bottom plate of the mounting base 1 and are rotatably connected to clamping plates 2 located on both sides of the inner cavity of the base. The clamping plates 2 can move up and down under the action of the clamping screws 11, thereby clamping and fixing the edge of the treatment bed in conjunction with the inner wall of the base. Each clamping plate 2 has a rubber anti-slip pad at its top opposite the upper inner side of the mounting base 1 to increase the friction of the clamping contact surface and prevent displacement or sliding during use, ensuring the stability and safety of the device during clinical use.

[0038] The vertical rod 3 has a hollow structure, with its lower end welded or threadedly fixed to the mounting base 1, serving as the foundation for the entire lamp body support structure. The vertical sliding rod 4 slides into the inner cavity of the vertical rod 3, with its upper end protruding from the top of the vertical rod, allowing for vertical adjustment of the overall height of the main lamp housing 7 to accommodate patients of different heights and body positions. The upper outer wall of the vertical rod 3 has a threaded hole, with a fixing screw 10 threaded inside the hole. This screw is used to lock the vertical sliding rod 4 to the vertical rod 3 after height adjustment, preventing shaking or slippage during equipment use.

[0039] Angle rod 5 is positioned in the front-to-back direction and is hinged to the upper end of vertical moving rod 4 via a pivot structure in the middle. Its front side has an open cavity structure, and extension rod 6 is slidably connected to the inner cavity of angle rod 5. Extension rod 6 slides along the axial direction of angle rod 5 and can extend and retract to change the horizontal distance between the main lamp housing 7 and the lamp support, thus expanding the optical projection coverage. Angle rod 5 has a threaded hole on its front side, with a threaded connection to positioning screw 15. When extension rod 6 is adjusted to the predetermined position, it can be axially fixed by the positioning screw 15, thereby ensuring the relative stability of the lamp head in space and the accuracy of projection positioning. This structure offers intuitive adjustment and convenient operation, allowing medical personnel to quickly position the lamp according to the treatment scenario.

[0040] like Figure 4 and Figure 6 As shown, the middle part of the angle rod 5 is hinged to the top of the vertical moving rod 4 via screws and a rotating shaft structure, allowing the angle rod 5 to be flipped back and forth relative to the vertical moving rod 4 in the vertical plane. To ensure stability and improve adjustment accuracy after angle adjustment, a slider 12 is slidably connected to the outer circumference of the rear side of the angle rod 5. The slider 12 can move along the axial direction of the angle rod 5 and fits tightly with it. An angle support rod 13 is hinged to the bottom of the slider 12 via screws, and the other end of the angle support rod 13 is hinged and fixed to the upper rear side of the vertical moving rod 4. This structure forms a typical triangular support frame. When the angle rod 5 is flipped to the target angle, the slider 12 can slide back and forth to adjust the opening angle of the angle support rod 13, thereby changing the tilt amplitude of the angle rod 5 and achieving fine-tuning of the lamp head's tilt angle. To prevent the slider 12 from shifting during use, a threaded hole is provided on its outer side, with an internal threaded locking screw 14 connected to it, used to lock the slider 12 in a predetermined position, thereby stabilizing the unfolded state of the angle support rod 13 and locking the lamp body's tilt angle.

[0041] A straight cylindrical limiting tube is fixedly connected to the bottom of the main lamp housing 7. The limiting tube opens downwards, and its internal cavity accommodates the zoom tube 9. The zoom tube 9 has a sliding insertion structure; its outer diameter fits tightly with the inner diameter of the limiting tube, maintaining a certain sliding resistance to ensure smooth operation and prevent slippage. The outer wall of the zoom tube 9 has anti-slip textures for easy manual gripping and position adjustment. The outer wall of the limiting tube has threaded holes, with an internal thread connecting to an adjusting screw 16, which can reliably fix the position of the zoom tube 9 by pressing the side wall. By manually sliding the zoom tube 9, the forward and backward displacement of the lens group in the optical path can be adjusted, thereby changing the imaging position and image clarity of the projected pattern to meet the image size and focusing requirements under different diagnostic and treatment needs. The entire structure is compact in design and simple in manufacturing process, facilitating fine adjustment by clinicians according to the distance from the bed and the location of the target area, demonstrating good practicality and adaptability.

[0042] like Figure 6 and Figure 7 As shown, the optical projection module 8 is located inside the limiting cylinder at the bottom of the main lamp housing 7, and mainly consists of a rotating shaft 17, a polygonal wheel 22, a high-brightness LED light source 23, a support 24, and a pattern positioning structure. The rotating shaft 17 penetrates the limiting cylinder vertically, with its tail end located inside the limiting cylinder and coaxially fixedly connected to the polygonal wheel 22. The wheel 22 is a regular octagonal transparent acrylic plate with a D-shaped through hole in its center, which is clearance-fitted with the D-shaped shaft head at the tail end of the rotating shaft 17 to ensure accurate positioning during assembly and prevent rotational slippage. The eight sides of the wheel 22 are engraved with contour patterns of different body positions. The patterns are laser-engraved through the thickness direction of the acrylic plate, with a surface roughness Ra≥3.2μm, to facilitate focused imaging and maintain image clarity.

[0043] The high-brightness LED light source 23 is located at the axis of the wheel 22 and is fixed to the inner wall of the bottom of the main lamp housing 7 via a mounting bracket 24. The bracket 24 adopts an integrated injection molding structure, which has good heat dissipation and positioning functions for the light source, ensuring that the center of the light source always coincides with the center of the wheel, thereby achieving uniform illumination and clear projection of the pattern. The light source uses a high-brightness, low-power LED chip, which has stable lighting intensity and a long service life, making it suitable for use in long-term clinical working environments.

[0044] To achieve pattern switching and precise positioning of the wheel 22, a polygonal positioning block 18 is coaxially fixed to the first end of the wheel shaft 17. The longitudinal section of this positioning block is the same as that of the wheel 22, both being regular octagons, and each edge is parallel to the axis of the wheel shaft. Two fixing positioning pins 20 are located inside the main lamp housing 7, distributed on the left and right sides of the positioning block 18 respectively. The positioning pins 20 cooperate with a positioning plate 19 that can move up and down. The bottom of the positioning plate 19 is spring-loaded by a positioning spring 21, normally pushing the end of the positioning pin 20 upwards. When the wheel shaft 17 rotates to a certain fixed angle, the corresponding edge of the positioning block fits against the positioning pin, and the pin head automatically engages in the corner recess, achieving precise positioning and preventing rotational deviation. To switch patterns, simply rotate the wheel shaft 17 manually. When the positioning block rotates to the next corner position, the spring is compressed and released, completing a reliable positioning. This structure not only provides accurate positioning and smooth switching but is also simple to manufacture and easy to maintain, greatly improving the practicality and reliability of the projected pattern switching.

[0045] like Figure 6 and Figure 7 As shown, the polygonal wheel 22 is a regular octagonal transparent acrylic plate, with each edge parallel to the axis of the rotating shaft 17, ensuring stable pattern switching without skewing during rotation. A D-shaped through-hole is located at the center of the wheel 22, connecting to the D-shaped shaft end of the rotating shaft 17 via a clearance fit. This structure facilitates quick installation and disassembly, and the planar contact surface prevents slippage during axial rotation, ensuring synchronization and stability during pattern switching. The wheel surface is laser-engraved, with multiple body contour patterns engraved in different areas. These patterns extend from the acrylic plate surface downwards into the deeper layers of the plate, forming permanent textures. The surface roughness of the engraved area is controlled at Ra≥3.2μm, enhancing the clarity and light-gathering effect of the projected image, making it particularly suitable for clinical use in low-light environments.

[0046] To achieve flexible adjustment of image size and focal length, a dual-lens structure is installed inside the limiting cylinder. A first lens is installed inside the limiting cylinder, near the main lamp housing 7, for initial focusing; a second lens is installed inside the zoom cylinder 9, near its projection end, for adjusting the final imaging distance and spot size. The zoom cylinder 9 itself is a cylindrical structure with openings at both ends to facilitate light path transmission. The outer wall of the cylinder has anti-slip textures to enhance grip friction during focusing, and a limiting protrusion ring is provided around the front end of its inner wall to prevent the second lens from accidentally falling off during transportation or sliding, ensuring component stability. The zoom cylinder 9 is slidably assembled inside the limiting cylinder. By adjusting its front and rear positions and locking it with screws, the size and clarity of the projected image can be controlled to adapt to different distances and angles in diagnostic and treatment scenarios.

[0047] Furthermore, to improve the accuracy of patient positioning and interactive feedback, a set of reflective infrared diodes is embedded on the left and right sides of the bottom of the main lamp housing 7. These diodes consist of a transmitter and a receiver, and are modularly embedded to ensure precise positioning and prevent loosening during assembly. The emission direction between the two ends is obliquely arranged, meaning the angle between the infrared beam and the axis of the limiting cylinder is set at 30°, forming an obliquely intersecting reflection detection area. This angle design allows the system to establish a stable reflection path before the patient enters the pattern area. Once the patient enters the pattern coverage area, their body surface will obstruct or interfere with the infrared beam, allowing the system to detect changes in the reflection signal and determine the accuracy of the current position.

[0048] The linkage between infrared sensing and pattern recognition in this device relies on the structural characteristics of the polygonal wheel 22. The wheel has multiple patterns for different body positions, each pattern corresponding to a set of preset infrared reflection areas. For example, when the wheel rotates to the "supine position" pattern, the system automatically switches to the corresponding infrared detection parameters. In this position, the chest and abdomen area of ​​the human body will cover the central area of ​​the pattern, so the infrared system mainly monitors the occlusion status of this central projection area. When the wheel rotates to the "lateral decubitus position" or "prone position" pattern, the control module automatically adjusts the detection area offset direction or detection sensitivity to match the position that the patient should cover.

[0049] Each pattern position can be precisely located by rotating the wheel shaft 17. Simultaneously, the system identifies the current pattern number through encoding and activates the corresponding infrared detection program module. If the infrared system detects an abnormal reflected signal (such as incomplete coverage or exceeding the offset threshold), the control module within the main lamp housing 7 sends a control signal, driving the LED light source 23 to change color (e.g., from white to red), providing a visual warning to medical personnel that the patient's position may be incorrect. This structure, without requiring an additional image recognition system, achieves intelligent perception and real-time feedback across multiple patterns and positions through the coordinated operation of optical components and sensing elements. This improves positioning efficiency and safety, facilitating rapid bedside operation.

[0050] When using this device: ① Place the mounting base 1 on the edge of the treatment bed, so that the clamping piece 2 fits against the side of the bed board. Rotate the clamping screw 11 to move the clamping piece 2 upward, thereby clamping and fixing it to the edge of the bed to ensure stable installation; ② Loosen the fixing screw 10, slide the vertical moving rod 4 up and down to the appropriate height, and then tighten the screw. Adjust the tilt angle of the angle rod 5, and at the same time move the slider 12 and adjust the extension angle of the angle support rod 13. Hinge the other end of the slider 12 to the upper end of the vertical moving rod 4, and tighten the locking screw 14 to lock the angle rod 5; ③ Pull the extension rod 6 along the axial direction of the angle rod 5 to the required length, and then fix its position with the positioning screw 15; ④ Rotate the rotating wheel shaft 17 to drive the polygonal wheel 2. 2. Switch to the desired body position pattern. The corresponding polygonal positioning block 18 is inserted between the positioning pins 20, and precise positioning is achieved by the positioning plate 19 and the positioning spring 21. ⑤ Push the zoom cylinder 9 to slide back and forth in the limiting cylinder to adjust the pattern imaging size and focal length, and lock it with the adjusting screw 16. ⑥ Turn on the high-brightness LED light source 23. The light illuminates the projection through the wheel 22. The support 24 is used to support the light source and keep the light path stable. The image is projected onto the patient's body surface through the optical projection module 8. ⑦ The infrared pair is embedded in the bottom of the main lamp housing 7. If the patient's body position shifts, the infrared reflection path changes, which will automatically trigger the light source to change color as a reminder, assisting medical staff to adjust the body position in time and ensure accurate positioning.

[0051] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A position projection light for a treatment bed, characterized in that, Comprising: An installation base (1), the shape of the installation base (1) is "C"-shaped, and there are two left and right clip pieces (2) with adjustable vertical positions arranged inside the installation base (1) for detachably installing on the edge of the examination couch; An adjustable lamp body support, the lamp body support includes a vertical rod (3) fixed to the installation base (1), a vertical moving rod (4) with adjustable vertical position is arranged inside the vertical rod (3), an angle rod (5) with adjustable front and rear inclination angles is arranged at the top of the vertical moving rod (4), and an extension rod (6) with adjustable position along the axial direction of the angle rod (5) is arranged inside the angle rod (5); A main lamp housing (7), the main lamp housing (7) is fixedly connected to the extension rod (6); An optical projection module (8) is arranged inside the main lamp housing (7), and the optical projection module (8) includes: a high-brightness LED light source (23); a rotatable and adjustable transparent polygonal wheel disc (22), on the surface of the polygonal wheel disc (22), a body position contour line is laser engraved; a push-pull adjustable zoom cylinder (9); A reflective infrared pair of tubes is arranged at the bottom of the main lamp housing (7) for detecting the patient's body position deviation and triggering the LED indicator light to change color.

2. A body positioning projection light for a treatment bed as described in claim 1, characterized in that, At the bottom of the installation base (1), there are two left and right clamping screws (11) threadedly connected upward. The clamping screws (11) penetrate through the middle of the installation base (1) and are rotatably connected to the corresponding clip pieces (2). Rubber anti-slip pads are respectively arranged at the top of the clip pieces (2) and the inner upper part of the installation base (1).

3. A position projection light for a treatment bed as described in claim 1, characterized in that, The vertical moving rod (4) is slidably connected inside the vertical rod (3), and a fixing screw (10) for fixing the vertical rod (3) and the vertical moving rod (4) is threadedly connected to the upper side of the vertical rod (3).

4. A body positioning projection light for a treatment bed as described in claim 1, characterized in that, The extension rod (6) is slidably connected inside the angle rod (5); a positioning screw (15) for fixing the angle rod (5) and the extension rod (6) is threadedly connected to the front side of the angle rod (5).

5. A position projection light for a treatment bed as described in claim 1, characterized in that, The middle part of the angle rod (5) is hinged to the top of the vertical moving rod (4); a slider (12) that can move axially along the angle rod (5) is slidably connected to the outer periphery of the rear side of the angle rod (5). The bottom of the slider (12) is hinged to an angle strut (13), and the end of the angle strut (13) is hinged to the upper side of the vertical moving rod (4); A locking screw (14) for fixing the angle rod (5) and the slider (12) is threadedly connected inward on the outer side of the slider (12).

6. A body positioning projection light for a treatment bed as described in claim 1, characterized in that, A cylindrical limiting cylinder is fixedly connected to the bottom of the main lamp housing (7), the zoom cylinder (9) is slidably connected inside the limiting cylinder, and an adjusting screw (16) for fixing the limiting cylinder and the zoom cylinder (9) is threadedly connected inward on the outer side of the limiting cylinder.

7. A position projection light for a treatment bed as described in claim 6, characterized in that, The optical projection module (8) is located inside the limiting cylinder; a rotating wheel shaft (17) is rotatably connected to the bottom of the main lamp housing (7), the tail end of the rotating wheel shaft (17) is located inside the limiting cylinder, and the tail end of the rotating wheel shaft (17) is coaxially fixedly connected to the polygonal wheel disc (22); the high-brightness LED light source (23) is located at the center of the polygonal wheel disc (22), and the high-brightness LED light source (23) is fixed to the bottom of the main lamp housing (7) through a support (24).

8. A position projection light for a treatment bed as described in claim 7, characterized in that, The first end of the rotating shaft (17) is coaxially fixedly connected to a polygonal positioning block (18). The polygonal positioning block (18) and the polygonal wheel have similar longitudinal cross-sectional shapes and parallel edges. The main lamp housing (7) is fixedly connected to two positioning pins (20) on the left and right. A positioning piece (19) that can move up and down is provided below the polygonal positioning block (18). The positioning piece (19) and the two positioning pins (20) are slidably connected. A positioning spring (21) is fitted around the positioning pin (20) on the lower side of the positioning piece (19).

9. A position projection light for a treatment bed as described in claim 1, characterized in that, The polygonal wheel (22) is a regular octagonal transparent acrylic plate, and all eight edges are parallel to the axis of the wheel shaft (17). A D-shaped through hole is opened in the center of the wheel and is clearance-fitted with the D-shaped shaft head of the wheel shaft (17). The body contour line laser-engraved on the surface of the wheel runs through the thickness direction of the plate, and the surface roughness Ra of the engraved area is ≥3.2μm.

10. A body positioning projection light for a treatment bed as described in claim 6, characterized in that, The zoom tube (9) is a cylinder with openings at both ends. Its outer wall is provided with anti-slip texture and its inner wall front end is provided with a limiting protrusion ring. The limiting tube is provided with a first lens at one end near the main lamp housing (7) and a second lens at one end near the projection end. The transmitting end and receiving end of the reflective infrared tube are respectively embedded on both sides of the bottom of the main lamp housing (7), and the transmitting direction is at a 30° angle with the axis of the limiting tube.

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