Illumination lamp for assisting vascular puncture

Abstract

The present application relates to the field of medical auxiliary equipment, in particular to a kind of irradiation lamp for assisting blood vessel puncture, including rack and controller, rack is equipped with shell, shell inside is integrated with light source and imaging instrument;Light source and imaging instrument are electrically connected with controller, rack is equipped with adjusting mechanism, counterweight mechanism and drive mechanism.Adjusting mechanism is used to connect shell and rack, and drive shell to deflect in multiple angles, to change the irradiation angle of light source and imaging instrument;Counterweight mechanism is used to adjust the gravity center distribution of shell by changing its position.Drive mechanism is simultaneously transmission connection with adjusting mechanism and counterweight mechanism, for driving adjusting mechanism to change irradiation angle under the instruction of controller, while synchronously driving counterweight mechanism to change the gravity center distribution of shell.The present application is used to reduce the interference caused by equipment shaking on imaging clarity and puncture precision, to provide more reliable, continuous optical assistance for blood vessel positioning.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary devices, specifically to an illumination lamp for assisting vascular puncture. Background Technology

[0002] In clinical medical procedures, vascular puncture is an indispensable part of basic diagnostic and treatment processes such as intravenous infusion, blood collection, and drug administration. However, for certain special populations (such as infants, the elderly, obese patients, patients in shock or dehydration, and those with darker skin pigmentation), subcutaneous blood vessels are often difficult to locate accurately by direct visual observation or palpation, leading to a high failure rate and prolonged operation time. This not only increases patient pain and anxiety but may also cause complications such as hematoma, infection, and venous injury, while reducing the work efficiency of medical staff.

[0003] To address the aforementioned issues, vascular-assisted localization devices based on near-infrared optical imaging principles have emerged in recent years, commonly referred to as vein imaging devices or vascular illumination lamps. These devices utilize the strong absorption of near-infrared light by hemoglobin. An infrared light source illuminates the skin, and an imaging sensor captures the reflected signals. After processing, the vascular outline is projected onto the skin surface as visible light, thus enabling vascular visualization. Existing products mostly employ handheld or simple support structures, which, while improving puncture success rates to some extent, still have certain limitations.

[0004] First, most devices lack stable support and angle adjustment mechanisms, and may require assistance from medical staff during operation. Imaging accuracy can be affected by hand tremors or positional shifts. Second, when adjusting the irradiation angle to suit different puncture sites (such as the back of the hand, forearm, and elbow crease), the device's center of gravity is prone to shift, which may cause the stent to tip over or slide, affecting safety. Furthermore, some devices lack dynamic balancing mechanisms during actual operation, affecting operational stability.

[0005] Therefore, this invention proposes an illumination lamp for assisting vascular puncture, which can reduce the interference caused by equipment shaking on imaging clarity and puncture accuracy, thereby providing more reliable and continuous optical assistance for vascular positioning. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides an illumination lamp for assisting vascular puncture, which reduces interference with imaging clarity and puncture accuracy caused by equipment shaking, thereby providing more reliable and continuous optical assistance for vascular positioning.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: an irradiation lamp for assisting vascular puncture includes a frame and a controller. The frame is provided with a housing, and a light source and an imager are integrated inside the housing. The light source and the imager are both electrically connected to the controller. The frame is provided with an adjustment mechanism, a counterweight mechanism, and a drive mechanism.

[0008] The adjustment mechanism is used to connect the housing to the frame and drive the housing to deflect at multiple angles to change the illumination angle of the light source and the imager; the counterweight mechanism is used to adjust the center of gravity distribution of the housing by changing its own position.

[0009] The drive mechanism is connected to both the adjustment mechanism and the counterweight mechanism for transmission. Under the command of the controller, it drives the adjustment mechanism to change the irradiation angle while simultaneously driving the counterweight mechanism to change the center of gravity distribution of the housing.

[0010] The technical principles of the above solution are as follows:

[0011] By integrating the adjustment mechanism, counterweight mechanism, and drive mechanism, coordinated control of irradiation angle adjustment and center of gravity balance is achieved. When the controller issues a command, the drive mechanism synchronously drives the adjustment mechanism to adjust the angle of the housing, thereby changing the irradiation angle of the light source and imager onto the blood vessel. At the same time, the drive mechanism, in conjunction with the counterweight mechanism, adjusts the center of gravity position of the device. Through this mechanical linkage design, the entire device is ensured to be in a state of mechanical balance during angle adjustment, avoiding tipping or shaking caused by angle changes, improving equipment stability and operational safety, and making it suitable for long-duration or delicate vascular puncture assistance scenarios.

[0012] The above approach has the following beneficial effects:

[0013] 1. This solution uses a drive mechanism to synchronously adjust the adjustment mechanism and the counterweight mechanism. While changing the illumination angle of the light source and imager, it adjusts the position of the counterweight to balance the device's center of gravity, ensuring stability. This reduces interference from device shaking on image clarity and puncture accuracy, providing more reliable and continuous optical assistance for vessel localization. Furthermore, operators can focus on the puncture procedure itself without needing to maintain device balance, reducing operational difficulty. It allows for more precise adjustment of the illumination angle to clearly present the vessel location, making it suitable for puncture scenarios with complex vascular conditions, such as those in pediatrics and elderly patients.

[0014] 2. This solution achieves angle adjustment and center of gravity balance control simultaneously through a single drive mechanism, reducing the number of power sources and transmission components, resulting in a more compact overall structure. Simultaneously, the controller issues unified commands and coordinates the actions of both mechanisms synchronously, avoiding the complex programming and debugging work required for multiple power components. In daily use, operators only need to use the controller to perform angle adjustment, reducing the learning curve. The reduction in equipment components also means fewer potential points of failure; maintenance only requires checking the drive mechanism and linkage components, improving the ease of use and reliability of the equipment.

[0015] 3. This solution ensures that the light source and imager always illuminate the target blood vessel at the optimal angle through stable angle adjustment and center of gravity balance control, reducing image blurring caused by equipment shaking. This helps operators locate blood vessels more quickly and accurately, reducing the number of punctures and patient discomfort. At the same time, the stability of the equipment during operation avoids secondary injury to patients caused by equipment tipping or shaking, improving the patient's medical experience.

[0016] Furthermore, the adjustment mechanism includes a telescopic layer fixedly connected to the frame, with the side of the telescopic layer away from the frame fixedly connected to the housing; a sleeve is fixedly connected to the top of the housing, a locking rod is rotatably fitted on the inner wall of the sleeve, and an adjustment block is fixedly connected to the end of the locking rod away from the housing; a rotating assembly for adjusting the angle of the adjustment block is provided on the frame.

[0017] Beneficial effects: The composite connection structure of the telescopic layer and the sleeve-clamp rod-adjusting block enables the deflection and positioning of the shell. The telescopic layer provides a flexible buffer space, while the rotation of the sleeve and clamp rod, combined with the external rotating components, allows the shell to rotate in multiple directions, thus adapting to the irradiation requirements of different puncture sites.

[0018] Furthermore, the drive mechanism includes a first drive component fixedly connected to the frame, and a controller electrically connected to the first drive component; a turntable is coaxially fixedly connected to the output shaft of the first drive component, and a vertical plate is fixedly connected to the bottom of the turntable; an adjusting block is hinged to the vertical plate, and a rotating assembly is disposed on the outer wall of the vertical plate.

[0019] Beneficial effects: The first driving component drives the turntable and vertical plate to move, and transmits the rotational power to the adjustment block to realize the electric control of the shell angle, improve the adjustment sensitivity and repeatability accuracy, and make it easier for medical staff to quickly and stably align the target area of ​​the blood vessel.

[0020] Furthermore, the rotating assembly includes a second driving component fixedly connected to the outer wall of the vertical plate, and the controller is electrically connected to the second driving component; the output shaft of the second driving component passes through the vertical plate and is fixedly connected to the adjusting block.

[0021] Beneficial effects: The second driving component drives the adjustment block to rotate, thereby controlling the deflection angle of the housing; the electric drive replaces manual adjustment, making operation more convenient and the response faster. It also works in conjunction with the first driving component to ensure the coordination and stability of multi-degree-of-freedom adjustment, thereby improving the accuracy and clinical applicability of vascular irradiation positioning.

[0022] Furthermore, the counterweight mechanism includes several counterweight cavities arranged circumferentially on the frame, each counterweight block being slidably fitted inside the counterweight cavity; several piston cavities are fixedly connected circumferentially to the frame, and each piston cavity is in communication with the counterweight cavity.

[0023] The piston cavity is fitted with piston plates that slide together, and the bottom of each piston plate is fixedly connected to a transmission rod; the outer wall of the sleeve is fitted with several connecting rods that rotate circumferentially, and the ends of the connecting rods away from the sleeve are all hinged to the transmission rods.

[0024] Beneficial effects: The adjustment action of the counterweight chamber, piston chamber and connecting rod transmission is linked with the shell, which can drive the counterweight block to slide in the opposite direction when the shell deflects, adjust the center of gravity position in real time, improve the stability and anti-tipping ability of the equipment during the adjustment process, and ensure the safe and reliable operation of the illumination lamp in various postures.

[0025] Furthermore, the side of the counterweight cavity away from the first driving component is connected to a transmission pipe, and the end of the transmission pipe away from the counterweight cavity is connected to the interior of the telescopic layer.

[0026] Beneficial effects: By connecting the counterweight cavity and the telescopic layer through the transmission pipe, an internal circulation channel is formed, which promotes gas circulation and increases air flow during the reciprocating motion of the counterweight, thereby achieving heat dissipation and improving the stability and safety of the equipment during long-term operation.

[0027] Furthermore, an inclinometer for acquiring angle information is fixedly connected to the inner wall of the housing. The controller is used to acquire the angle information emitted by the inclinometer and control the operation of the first and second drive components based on the angle information.

[0028] Beneficial effects: The built-in tilt meter in the housing can monitor the attitude of the housing in real time. The controller adjusts the operation of the first and second drive components according to the tilt feedback to adjust the irradiation angle, ensuring that the blood vessel projection is stably aligned with the target area, and improving the automation level of the equipment and the reliability of clinical operation.

[0029] Furthermore, it also includes an irradiation system for assisting vascular puncture, the irradiation system comprising the following modules:

[0030] The vascular imaging module is used to emit illumination light of a specific wavelength to the target skin area using a light source, and to receive the reflected light signal after the light source is emitted;

[0031] The image processing module, connected to the vascular imaging module, is used to process reflected light signals and generate and enhance two-dimensional visualization images of subcutaneous blood vessels based on the differences in optical properties between blood vessels and surrounding tissues.

[0032] The display guidance module is connected to the image processing module and is used to receive two-dimensional visualization image information and project the corresponding blood vessel contour graphics and the preset puncture guide line onto the actual surface of the target skin area through the imager.

[0033] An angle adjustment module is used to drive the display guide module to adjust its posture and maintain the center of gravity balance during the posture adjustment process.

[0034] Beneficial effects: The irradiation system integrates vascular imaging, image processing, projection guidance, and angle adjustment, providing visual assistance for the entire process from vessel identification to puncture guidance. By superimposing the enhanced vessel contour and puncture guide line onto the skin surface, combined with an angle adjustment module that has a center of gravity balance function, it ensures stable projection in any position, improving puncture accuracy, operational efficiency, and patient comfort.

[0035] Furthermore, the image processing module includes the following units:

[0036] The intelligent analysis unit is used to perform feature recognition and analysis on two-dimensional visualization images. The analysis includes automatically identifying blood vessel bifurcation points and assessing the relative depth and diameter of blood vessels.

[0037] The path planning unit generates guidance information containing suggested puncture points and expected needle insertion paths based on the analysis results of the intelligent analysis unit, and sends the guidance information to the display guidance module for projection display.

[0038] Beneficial effects: The intelligent analysis unit identifies blood vessel bifurcation, assesses depth and diameter, and generates personalized puncture guidance plans by combining them with the path planning unit, thereby improving the puncture success rate, reducing the risk of complications, and enhancing the auxiliary value of the irradiation system in complex clinical scenarios.

[0039] Furthermore, the image processing module is also equipped with a skin color compensation algorithm, which generates a compensation scheme for irradiation parameters based on individual skin color differences and blood vessel status data; the compensation scheme includes adjusting light intensity, irradiation temperature, and colorimetry.

[0040] Beneficial effects: The skin color compensation algorithm can optimize irradiation parameters according to the individual skin color differences and vascular condition of patients. By adjusting the light intensity, irradiation temperature and chromaticity, it can improve the imaging contrast between blood vessels and surrounding tissues under different skin types, ensure clear and stable vascular images, expand the range of applicable people for the device, and enhance the consistency and reliability of clinical operations. Attached Figure Description

[0041] Figure 1 This is an isometric view of the illumination lamp used to assist in vascular puncture according to the present invention.

[0042] Figure 2 For the present invention Figure 1 A sectional view from the middle side.

[0043] Figure 3 For the present invention Figure 2 Enlarged view of section A.

[0044] Figure 4 For the present invention Figure 2 Axonometric drawing of the counterweight mechanism.

[0045] Figure 5 For the present invention Figure 2 Axonometric view of the drive mechanism.

[0046] Figure 6 For the present invention Figure 5 Side view of the rotation angle of the middle shell.

[0047] Figure 7 This is a schematic diagram of the module connection of the irradiation system in the irradiation lamp used to assist vascular puncture according to the present invention.

[0048] The reference numerals in the accompanying drawings of the instruction manual include: 1. Frame; 2. Housing; 3. Telescopic layer; 4. Sleeve; 5. Locking rod; 6. Adjusting block; 7. First driving component; 8. Turntable; 9. Vertical plate; 10. Second driving component; 11. Counterweight cavity; 12. Counterweight block; 13. Piston cavity; 14. Piston plate; 15. Transmission rod; 16. Connecting rod. Detailed Implementation

[0049] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] The following detailed description illustrates the specific implementation method:

[0053] Example 1:

[0054] As attached Figures 1-6 The diagram shows an illumination lamp for assisting vascular puncture, comprising a frame 1 and a controller, wherein the controller is a microcontroller in this embodiment. A housing 2 is mounted on the frame 1, and a light source and an imager are integrated inside the housing 2. Both the light source and the imager are electrically connected to the controller. The frame 1 is equipped with an adjustment mechanism, a counterweight mechanism, and a drive mechanism. In this embodiment, the frame 1 includes a support arm and a placement block, which places the frame 1 on a stable plane. In some preferred embodiments, the placement block can also be a clamping block, allowing the device to be clamped onto a hospital bed, etc., to increase the device's applicability.

[0055] The adjustment mechanism is used to connect the housing 2 to the frame 1 and drive the housing 2 to deflect at multiple angles to change the illumination angle of the light source and the imager; the counterweight mechanism is used to adjust the center of gravity distribution of the housing 2 by changing its own position.

[0056] The drive mechanism is used to simultaneously drive the adjustment mechanism and the counterweight mechanism. Under the command of the controller, the adjustment mechanism is driven to change the irradiation angle, while the counterweight mechanism is driven to change the center of gravity distribution of the housing 2 in order to maintain the balance of the device during the adjustment process.

[0057] The adjustment mechanism includes a telescopic layer 3 bonded to the frame 1, with the side of the telescopic layer 3 away from the frame 1 fixedly bonded to the housing 2; a sleeve 4 (such as...) is screwed to the top of the housing 2. Figure 3 As shown, a locking rod 5 is rotatably fitted on the inner wall of the sleeve 4, and an adjusting block 6 is screwed to the end of the locking rod 5 away from the housing 2; a rotating assembly for adjusting the angle of the adjusting block 6 is provided on the frame 1. In this embodiment, the telescopic layer 3 is made of flexible material to ensure that the housing 2 can rotate; the locking rod 5 is rotatably fitted with the sleeve 4 in a snap-fit ​​manner to ensure that the housing 2 is connected when the locking rod 5 rotates inside the sleeve 4.

[0058] The drive mechanism includes a first drive component 7 bolted to the frame 1. In this embodiment, the first drive component 7 is a servo motor. The controller is electrically connected to the first drive component 7. The output shaft of the first drive component 7 is coaxially fixed to a turntable 8. The bottom of the turntable 8 is fixedly connected to a vertical plate 9 by screws. The adjusting block 6 is hinged to the vertical plate 9. The rotating component is set on the outer wall of the vertical plate 9.

[0059] The rotating assembly includes a second drive component 10 bolted to the outer wall of the vertical plate 9. In this embodiment, the second drive component 10 is a stepper motor. The controller is electrically connected to the second drive component 10. The output shaft of the second drive component 10 passes through the vertical plate 9 and is fixedly connected to the adjusting block 6.

[0060] The counterweight mechanism includes several counterweight cavities 11 arranged circumferentially on the frame 1 (e.g. Figure 4As shown), counterweight blocks 12 are slidably fitted inside the counterweight cavity 11; several piston cavities 13 are fixedly connected to the frame 1 by circumferential screws, and the piston cavities 13 are all connected to the counterweight cavity 11.

[0061] Piston plates 14 are slidably fitted inside piston chamber 13, and transmission rods 15 are fixedly connected to the bottom of piston plates 14 with screws; several connecting rods 16 are circumferentially fitted on the outer wall of sleeve 4, and the ends of the connecting rods 16 away from sleeve 4 are hinged to the transmission rods 15.

[0062] The specific implementation process is as follows:

[0063] When using this illumination lamp for vascular puncture assistance, medical personnel first activate it via the controller. When it is necessary to adjust the illumination angle of the housing 2 to align with the target blood vessel area, the controller sends instructions to the first drive unit 7 (servo motor) and the second drive unit 10 (stepper motor). The first drive unit 7 drives the turntable 8 to rotate, and the vertical plate 9 at the bottom of the turntable 8 rotates accordingly. Since the adjusting block 6 is hinged to the vertical plate 9, the housing 2 begins to deflect in multiple directions under the flexible support of the telescopic layer 3.

[0064] When it is necessary to adjust the range of rotation angle, the output shaft of the second drive component 10 directly drives the adjustment block 6 to rotate. The adjustment block 6 is used to adjust the entire structure below it to adjust the range of angle. In this way, the housing 2 can be adjusted in multiple angles, thereby improving the applicability of the device.

[0065] by Figure 6 For example, when the second driving member 10 rotates counterclockwise, it causes the housing 2 to deflect to the right; conversely, when the second driving member 10 rotates clockwise, it causes the housing 2 to deflect to the left. This allows for adjustment of the angle range. Furthermore, the rotation of the first driving member 7 can rotate the angle adjusted by the second driving member 10 to various positions. This connection method enables the device to be adjusted according to different irradiation directions, improving its practicality.

[0066] As the angle of the housing 2 changes, the sleeve 4 connected to the housing 2 moves accordingly. The connecting rod 16, which is circumferentially fitted to the outer wall of the sleeve 4, moves with the sleeve 4 at one end and is hinged to the transmission rod 15 at the other. The deflection motion of the housing 2 is converted by the sleeve 4 into a pushing and pulling action of the connecting rod 16 on the transmission rod 15. The transmission rod 15 drives the piston plate 14 to slide within its piston cavity 13; since the piston cavity 13 is connected to the counterweight cavity 11, the sliding of the piston plate 14 causes the counterweight 12 to slide within the counterweight cavity 11 along a trajectory opposite to the deflection direction of the housing 2.

[0067] by Figure 2For example, when the housing 2 deflects to the right, its center of gravity is located on the left. Using the connecting rod 16 and transmission rod 15 on the sleeve 4, the piston plate 14 in the left piston chamber 13 can pull the counterweight 12 connected to it to move to the right, while the piston plate 14 in the right piston chamber 13 can push the counterweight 12 connected to it to move to the right, so that the center of gravity of the counterweight 12 is adjusted to the right as a whole; generating a reverse torque, thereby counteracting the change in center of gravity caused by the displacement of the housing 2 and keeping the frame 1 stable as a whole.

[0068] This embodiment couples mechanical structure with adjustment action. Whenever the housing 2 rotates, it drives the counterweight 12 to move through the linkage mechanism, resulting in fast response and high reliability. The balancing and stabilizing function is integrated into the space through the linkage, piston and other mechanisms set around the sleeve 4, increasing the applicability of the device.

[0069] Example 2:

[0070] As attached Figure 2 As shown, the difference from Embodiment 1 is that the side of the counterweight cavity 11 away from the first driving member 7 is connected to a transmission pipe, and the end of the transmission pipe away from the counterweight cavity 11 is connected to the interior of the telescopic layer 3.

[0071] The specific implementation process is as follows:

[0072] During the orientation adjustment of the housing 2, since the side of the counterweight cavity 11 away from the first driving member 7 is connected to the interior of the telescopic layer 3 through a transmission pipe, the pressure change inside the cavity caused by the movement of the counterweight 12 will be transmitted to the interior of the telescopic layer 3 through the transmission pipe. For example, when the counterweight 12 slides into the counterweight cavity 11 in a certain direction, the gas inside the cavity is squeezed out and flows into the telescopic layer 3 through the transmission pipe; conversely, when the counterweight 12 retracts, a negative pressure is formed inside the cavity, and gas is drawn from the telescopic layer 3, causing it to contract; thereby changing the pressure distribution inside the counterweight cavity 11.

[0073] Meanwhile, this air passage structure continuously promotes the circulation of the internal medium during the reciprocating motion of the counterweight 12, which helps to transfer the heat generated by the power components such as the first driving component 7 and the second driving component 10 through the transmission pipe, ensuring the stable operation of the equipment for a long time. Thus, the transmission pipe not only participates in the center of gravity-attitude coordinated adjustment as a pressure transmission channel, but also has a thermal management function, further improving the integration and reliability of the whole machine.

[0074] Example 3:

[0075] The difference from Embodiment 2 is that an inclinometer for acquiring angle information is also screwed to the inner wall of the housing 2. The controller is used to acquire the angle information emitted by the inclinometer and control the operation of the first drive component 7 and the second drive component 10 based on the angle information. In this embodiment, the controller is electrically connected to the inclinometer, the first drive component 7, and the second drive component 10 via a cable or wireless transmission.

[0076] The specific implementation process is as follows: After the device is started, the inclinometer detects the spatial attitude of the housing 2 relative to the horizontal plane in real time and continuously transmits the current three-dimensional angle information to the controller in the form of electrical signals. When medical staff set the target irradiation area through the operation interface, the controller first reads the actual attitude data fed back by the inclinometer and compares it with the preset ideal irradiation angle to calculate the angle deviation.

[0077] Based on this deviation, the controller generates corresponding control commands, which are sent to the first drive unit 7 (servo motor) and the second drive unit 10 (stepper motor) respectively, to complete the adjustment of the angle of the housing 2. Throughout the adjustment process, the inclinometer continuously collects the real-time attitude of the housing 2, and the controller continuously updates the control signal, forming a feedback adjustment mechanism.

[0078] For example, if the housing 2 tilts slightly due to initial unevenness or external disturbance during adjustment, the tilt meter will immediately detect the change, and the controller will then drive the corresponding motor to compensate and correct, ensuring that the light source and imager are aligned with the target skin area as needed. This active control based on tilt feedback can overcome positioning drift caused by mechanical clearance, assembly errors, or external vibrations, improving the accuracy of blood vessel projection and image stability, and providing reliable assurance for puncture.

[0079] Example 4:

[0080] As attached Figure 7 As shown, the difference from Embodiment 3 is that this embodiment also includes an irradiation system for assisting vascular puncture. The irradiation system includes a vascular imaging module, an image processing module, a display guidance module, and an angle adjustment module. The functions of each module are as follows:

[0081] The vascular imaging module is used to emit light of a specific wavelength to the target skin area using a light source and to receive the reflected light signal after the light source is emitted.

[0082] The image processing module is connected to the vascular imaging module to process reflected light signals and generate and enhance two-dimensional visualization images of subcutaneous blood vessels based on the differences in optical properties between blood vessels and surrounding tissues.

[0083] The image processing module includes the following units:

[0084] The intelligent analysis unit is used to perform feature recognition and analysis on two-dimensional visualization images. The analysis includes automatically identifying blood vessel bifurcation points and assessing the relative depth and diameter of blood vessels.

[0085] The path planning unit generates guidance information containing suggested puncture points and expected needle insertion paths based on the analysis results of the intelligent analysis unit, and sends the guidance information to the display guidance module for projection display.

[0086] The display guidance module is connected to the image processing module to receive two-dimensional visualization image information and project the corresponding blood vessel contour graphics and the preset puncture guide line onto the actual surface of the target skin area through the imager.

[0087] The angle adjustment module is used to drive the display guide module to adjust its posture and maintain the center of gravity balance during the posture adjustment process.

[0088] The specific implementation process is as follows: When using this irradiation lamp for assisted vascular puncture, the irradiation system is first activated by the vascular imaging module: its built-in near-infrared light source emits irradiation light of a specific wavelength (usually 750–950 nm) towards the patient's target skin area (such as the back of the hand or forearm); because hemoglobin has a strong absorption of near-infrared light, while the surrounding tissue has a high reflectivity, the light signal reflected by the subcutaneous tissue carries information about the distribution of blood vessels. This reflected light is received by the infrared sensor in the imager and converted into raw image data, which is then transmitted to the image processing module.

[0089] The image processing module first performs noise reduction, contrast enhancement, and edge sharpening on the original signal to generate a clear two-dimensional visual image of the blood vessels. Subsequently, the intelligent analysis unit performs depth analysis on the image, automatically identifying the main trunk, bifurcation points, and direction of the blood vessels. Based on a light intensity attenuation model and texture features, it assesses the relative depth and diameter of each segment of the blood vessel, eliminating high-risk areas that are too thin, too deep, or adjacent to arteries. Building on this, the path planning unit intelligently generates one or more suggested puncture points, considering blood vessel quality, safe puncture distance, and ease of operation, and calculates the corresponding expected needle insertion path (represented as a straight line or an angled guide line). This guidance information, along with the enhanced blood vessel contour, is sent to the display guidance module.

[0090] After receiving the above information, the display guidance module uses an imager (such as a DLP or laser scanning module) integrated in the housing 2 to overlay and project the vascular contour graphic and the puncture guide line onto the actual surface of the patient's skin, achieving intuitive guidance that is exactly what is projected.

[0091] Meanwhile, if the current projection angle is not ideal (e.g., there is obstruction or skewed viewing angle), medical staff can trigger the angle adjustment module via the controller. This module drives the housing 2 to deflect in multiple degrees of freedom; through the coordinated action of the aforementioned drive mechanism, adjustment mechanism, and counterweight mechanism, the overall center of gravity is automatically adjusted while changing the orientation of the display guide module, ensuring that the device remains stable and balanced throughout the adjustment process.

[0092] In addition, the tilt meter built into the housing 2 continuously feeds back posture data, and the controller fine-tunes the motor operation accordingly to achieve closed-loop precise control of the projection angle. This ensures that the vascular image and the guide line can be accurately and without distortion mapped onto the skin surface in any posture, providing efficient, safe and intelligent vascular puncture assistance for clinical use.

[0093] Example 5:

[0094] The difference from Embodiment 4 is that the image processing module is also equipped with a skin color compensation algorithm. The skin color compensation algorithm generates a compensation scheme for irradiation parameters based on individual skin color differences and blood vessel status data. The compensation scheme includes adjusting light intensity, irradiation temperature and color adjustment.

[0095] The specific implementation process is as follows: After the irradiation system is started, the vascular imaging module first acquires the initial infrared reflection image of the target area and simultaneously obtains skin appearance information under visible light. The skin color compensation algorithm in the image processing module then analyzes the image, identifies the brightness, chromaticity, and texture features of the skin area, determines the patient's skin color type (e.g., based on Fitzpatrick classification or adaptive spectral model), and combines the current vascular signal contrast, signal-to-noise ratio, and other vascular state data to assess whether the clarity of vascular imaging under the existing irradiation conditions is sufficient.

[0096] If the algorithm determines that the low optical contrast between blood vessels and surrounding tissues is due to darker skin tone, subcutaneous pigmentation, or insufficient local perfusion, it will automatically calculate and generate an irradiation parameter compensation scheme. This scheme adjusts the following parameters:

[0097] The light source intensity should be appropriately increased by raising the driving current of the near-infrared LED to enhance penetration, but not exceeding the safety limit.

[0098] Irradiation temperature is controlled by adjusting the duty cycle of the light source to maintain the skin surface temperature rise within a comfortable and safe range, thus avoiding discomfort caused by prolonged irradiation.

[0099] Projection chromaticity optimizes the color of the projected light in the display guide module (e.g., adjusting the default red light to a high-contrast cyan or green) to achieve a more prominent display of blood vessel outlines against specific skin tone backgrounds.

[0100] The aforementioned compensation parameters are sent in real time from the controller to the light source driver and projection module, realizing a closed loop of perception-decision-adjustment. For example, when dealing with patients with dark skin, the irradiation system may increase the infrared light intensity while switching the projection guide line to a bright yellow to improve visual recognition. For children with pale skin and superficial blood vessels, the light intensity is appropriately reduced and a soft red projection is used to avoid stimulation.

[0101] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An illumination lamp for assisting vascular puncture, comprising a frame (1) and a controller, wherein a housing (2) is provided on the frame (1), and a light source and an imager are integrated inside the housing (2); the light source and the imager are both electrically connected to the controller, characterized in that, The frame (1) is equipped with an adjustment mechanism, a counterweight mechanism and a drive mechanism; The adjustment mechanism is used to connect the housing (2) and the frame (1) and drive the housing (2) to deflect at multiple angles to change the illumination angle of the light source and the imager; the counterweight mechanism is used to adjust the center of gravity distribution of the housing (2) by changing its own position. The drive mechanism is connected to both the adjustment mechanism and the counterweight mechanism for transmission. Under the instruction of the controller, the adjustment mechanism is driven to change the irradiation angle, while the counterweight mechanism is driven to change the center of gravity distribution of the housing (2).

2. The illumination lamp for assisting vascular puncture according to claim 1, characterized in that, The adjustment mechanism includes a telescopic layer (3) fixedly connected to the frame (1), and the side of the telescopic layer (3) away from the frame (1) is fixedly connected to the housing (2); a sleeve (4) is fixedly connected to the top of the housing (2), and a locking rod (5) is rotatably fitted on the inner wall of the sleeve (4), and an adjustment block (6) is fixedly connected to the end of the locking rod (5) away from the housing (2); a rotating assembly for adjusting the angle of the adjustment block (6) is provided on the frame (1).

3. The illumination lamp for assisting vascular puncture according to claim 2, characterized in that, The drive mechanism includes a first drive member (7) fixedly connected to the frame (1), and the controller is electrically connected to the first drive member (7); the output shaft of the first drive member (7) is coaxially fixedly connected to a turntable (8), and the bottom of the turntable (8) is fixedly connected to a vertical plate (9); the adjusting block (6) is hinged to the vertical plate (9), and the rotating component is set on the outer wall of the vertical plate (9).

4. The illumination lamp for assisting vascular puncture according to claim 3, characterized in that, The rotating assembly includes a second drive member (10) fixedly connected to the outer wall of the vertical plate (9), and the controller is electrically connected to the second drive member (10); the output shaft of the second drive member (10) passes through the vertical plate (9) and is fixedly connected to the adjusting block (6).

5. The illumination lamp for assisting vascular puncture according to claim 4, characterized in that, The counterweight mechanism includes several counterweight cavities (11) arranged circumferentially on the frame (1), and counterweight blocks (12) are slidably fitted in each counterweight cavity (11); several piston cavities (13) are fixedly connected circumferentially on the frame (1), and each piston cavity (13) is connected to the counterweight cavity (11); Piston plates (14) are slidably fitted inside piston chamber (13), and transmission rods (15) are fixedly connected to the bottom of piston plates (14); several connecting rods (16) are circumferentially fitted on the outer wall of sleeve (4), and the end of the connecting rod (16) away from sleeve (4) is hinged to the transmission rod (15).

6. The illumination lamp for assisting vascular puncture according to claim 5, characterized in that, The side of the counterweight cavity (11) away from the first driving member (7) is connected to a transmission pipe, and the end of the transmission pipe away from the counterweight cavity (11) is connected to the interior of the telescopic layer (3).

7. The illumination lamp for assisting vascular puncture according to claim 6, characterized in that, An inclinometer for acquiring angle information is also fixedly connected to the inner wall of the housing (2). The controller is used to acquire the angle information emitted by the inclinometer and control the operation of the first drive unit (7) and the second drive unit (10) based on the angle information.

8. The illumination lamp for assisting vascular puncture according to claim 7, characterized in that, It also includes an irradiation system for assisting vascular puncture, the irradiation system comprising the following modules: The vascular imaging module is used to emit illumination light of a specific wavelength to the target skin area using a light source, and to receive the reflected light signal after the light source is emitted; The image processing module, connected to the vascular imaging module, is used to process reflected light signals and generate and enhance two-dimensional visualization images of subcutaneous blood vessels based on the differences in optical properties between blood vessels and surrounding tissues. The display guidance module is connected to the image processing module and is used to receive two-dimensional visualization image information and project the corresponding blood vessel contour graphics and the preset puncture guide line onto the actual surface of the target skin area through the imager. An angle adjustment module is used to drive the display guide module to adjust its posture and maintain the center of gravity balance during the posture adjustment process.

9. The illumination lamp for assisting vascular puncture according to claim 8, characterized in that, The image processing module includes the following units: The intelligent analysis unit is used to perform feature recognition and analysis on two-dimensional visualization images. The analysis includes automatically identifying blood vessel bifurcation points and assessing the relative depth and diameter of blood vessels. The path planning unit generates guidance information containing suggested puncture points and expected needle insertion paths based on the analysis results of the intelligent analysis unit, and sends the guidance information to the display guidance module for projection display.

10. The illumination lamp for assisting vascular puncture according to claim 9, characterized in that, The image processing module is also equipped with a skin color compensation algorithm, which generates a compensation scheme for irradiation parameters based on individual skin color differences and blood vessel status data; the compensation scheme includes adjusting light intensity, irradiation temperature and colorimetry.

Images