A collision prevention device for operating room shadowless lamps

By installing a ranging component, control unit, and drive mechanism on the surgical light, the problem of collision between the surgical light and the doctor is solved, realizing active early warning and passive protection, and improving the safety and ease of operation of the surgical light.

CN224534123UActive Publication Date: 2026-07-21FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
Filing Date
2025-09-30
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing surgical lights are prone to colliding with the surgeon's head or body during surgery, and there is a lack of effective anti-collision devices.

Method used

A ranging component, a control unit, an alarm device, and a drive mechanism are installed on the surgical light. The ranging component detects the proximity, the control unit issues an alarm, and the drive mechanism enables the surgical light to actively avoid obstacles.

Benefits of technology

It achieves proactive warning and passive protection before collisions, improving the safety and ease of operation of the surgical light.

✦ Generated by Eureka AI based on patent content.

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Abstract

A kind of operating room shadowless lamp anti-collision device, including mounting portion, with the rotating connection of mounting portion swing arm assembly, be equipped with the lamp shaft of swing arm assembly terminal, and be equipped with the operating lamp head of lamp shaft, still include ranging component, control unit, alarm device, drive mechanism.When the ranging component detects that medical staff head and so on object is too close to operating lamp head, can trigger the alarm device to issue early warning before physical contact occurs, remind personnel to avoid collision.Attention is received after alarm, medical staff can pass through the foot switch control drive motor work, adjust the rotation amplitude of mounting pipe, to realize the active avoidance of operating lamp head.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an anti-collision device for operating room shadowless lamps. Background Technology

[0002] In the operating room, surgical lights are crucial equipment. Their main function is to provide bright, uniform, and shadow-free illumination of the surgical area, ensuring that surgeons can clearly and accurately perform tissue dissections and surgical procedures. Currently, most surgical lights widely used in clinical practice are multi-jointed cantilever structures, such as the typical structure shown in utility model patent CN222543780U. However, during surgery, when the surgeon rises from a seated position, their head or body is highly susceptible to accidental collisions with the suspended surgical light head or robotic arm due to their complete focus on the surgical area. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an anti-collision device for operating room shadowless lamps. This utility model is an improvement on the guide rail ceiling-mounted surgical lamp structure disclosed in utility model patent with announcement number CN222543780U. The prior art has fully disclosed the mechanical structure and its connection relationships, including the mounting part, primary shaft, primary rotating arm, secondary shaft, secondary rotating arm, tertiary shaft, horizontal rotating ring arm, operating panel, vertical rotating ring arm, lamp shaft, and surgical lamp head.

[0004] The improvement of this utility model is that it also includes a ranging component, a control unit, an alarm device, and a drive mechanism;

[0005] The ranging component is mounted on the surgical light head;

[0006] The control unit is electrically connected to the ranging component;

[0007] The alarm device is electrically connected to the control unit.

[0008] The drive mechanism includes a drive motor and a transmission mechanism, with the drive motor disposed inside the mounting base.

[0009] More preferably, the transmission mechanism includes a drive gear connected to the output shaft of the drive motor, and a driven gear disposed on the side of the drive gear and meshing perpendicularly with the drive gear.

[0010] More preferably, the transmission mechanism further includes a connecting shaft passing through the driven gear, one end of the connecting shaft is provided with a sleeve, the inner ring of the sleeve is fixedly connected to the connecting shaft, and its outer ring is fixedly connected to the mounting tube; both ends of the connecting shaft are rotatably connected to the mounting base.

[0011] More preferably, both the first driven gear and the second driven gear are bevel gears.

[0012] More preferably, the alarm device includes an audio output module.

[0013] More preferably, the audio output module supports multiple volume levels.

[0014] A further preferred embodiment includes a foot switch, which has a displacement sensor or pressure sensor internally installed; the signal output terminal of the foot switch is connected to the control unit.

[0015] Except for the above improvements, the other mechanical structures and connection relationships of this utility model are the same as or equivalent to the contents disclosed in the CN222543780U patent cited in the background art, and retain all its functions.

[0016] Compared with existing technologies, this invention combines a mechanical transmission structure with an electronic control system to achieve dual safety guarantees of active early warning and passive protection. Specifically, when the ranging component detects that a medical staff member's head or other object is too close to the surgical light head, it can trigger the alarm device to issue a warning before physical contact occurs, reminding the person to avoid collision. After receiving the alarm, the medical staff can control the drive motor to operate via the foot switch, adjusting the rotation amplitude of the mounting tube, thereby achieving active avoidance of the surgical light head. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the drive mechanism of this utility model from the right side.

[0019] Figure 3 This is a schematic diagram of the left-right swinging installation of the surgical lamp of this utility model.

[0020] Figure 4 This is a schematic diagram of the surgical lamp of this utility model swinging back and forth.

[0021] Label Explanation:

[0022] 1. Mounting section; 11. Mounting base; 12. Mounting tube; 2. Rotary arm assembly; 3. Surgical lamp head; 4. Drive mechanism; 41. Drive motor; 411. Output end; 42. Transmission mechanism; 421. Drive gear; 422. Driven gear; 423. Connecting shaft; 424. Sleeve; 5. Lamp shaft; 6. Alarm device; 61. Audio output module; 7. Distance measuring assembly; 8. Control unit; 9. Foot switch. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] One embodiment of this utility model uses the surgical lamp disclosed in patent CN222543780U as its basic carrier. Those skilled in the art should understand that the entire contents of this prior art document are incorporated herein by reference as the disclosure of the basic mechanical structure in this embodiment. Therefore, common structures such as mounting bases, rotating arms at various stages, and rotating shafts will not be described in detail in this embodiment.

[0025] Depend on Figures 1 to 2 The present invention relates to an anti-collision device for operating room shadowless lamps, which mainly includes a ranging component 7, a control unit 8, an alarm device 6, and a drive mechanism 4.

[0026] In some embodiments, the mounting part 1 is used to fix the entire device to the operating room ceiling. The first end of the rotating arm assembly 2 is rotatably connected to the mounting part 1, and the end of the assembly is equipped with the surgical lamp head 3 via the lamp shaft 5. The rotating arm assembly 2 can be configured with a single-section or multi-section rotating arm structure to achieve flexible positioning of the surgical lamp head 3 over a wide range.

[0027] The ranging component 7 is mounted on the surgical lamp head 3;

[0028] The control unit 8 is electrically connected to the ranging component 7;

[0029] The alarm device 6 is electrically connected to the control unit 8.

[0030] The drive mechanism 4 includes a drive motor 41 and a transmission mechanism 42, with the drive motor 41 disposed inside the mounting base 1.

[0031] In some embodiments, the control unit 8 is connected to the ranging sensor via a cable signal. The control unit 8 has a preset safe distance value stored internally, which can be 15cm-30cm, preferably 20cm. The control unit 8 continuously receives ranging data and compares it: when the measured distance value is less than or equal to the safe distance value, the control unit 8 immediately sends a signal to the alarm device 6, triggering it to sound an alarm. The alarm device 6 is fixed to the surgical light using strong adhesive; its fixing position can be on the rotating arm assembly 2 or on the mounting tube 12. The drive mechanism 42 is used to swing the mounting tube 12, thereby raising the rotating arm assembly 2, which in turn raises the surgical light head 3 to achieve obstacle avoidance.

[0032] In some embodiments, the transmission mechanism 42 is disposed inside the mounting base 11, and the mounting base 11 has a circular hole at its bottom end. This circular hole is used to limit the swing range of the mounting tube 12, and the diameter of the circular hole can be 20-30 cm. The transmission mechanism 42 includes a driving gear 421 connected to the output shaft 411 of the drive motor 41, and a driven gear 422 disposed on the side of the driving gear 421 and meshing perpendicularly with the driving gear 421. The connecting shaft 423 passes through the first driven gear 422 and is spatially perpendicular to the mounting tube 12. One end of the connecting shaft 423 is provided with a sleeve 424. The inner ring of the sleeve 424 is fixedly connected to the connecting shaft 423, and its outer ring is fixedly connected to the mounting tube 12. Both ends of the connecting shaft 423 are rotatably connected to the mounting base 11.

[0033] In these embodiments, the drive motor 41 drives the drive gear 411 to rotate, and the driven gear 422 rotates under the drive of the drive gear, thereby driving the connecting shaft 423 to rotate, thereby causing the mounting tube 12 fixedly connected to the connecting shaft 423 to swing, and thus causing the surgical lamp to swing.

[0034] In some embodiments, both the driving gear 421 and the driven gear 422 are bevel gears. The axis of the driving gear 421 is spatially perpendicular to the axis of the connecting shaft 423. The bevel gear enables the conversion of the power transmission direction, thereby allowing the drive motor 41 to drive the mounting tube 12 to swing within a limited range.

[0035] In some embodiments, the alarm device 6 is provided with an audio output module 61 for providing alarm sounds.

[0036] In these implementations, to ensure that the alarm sound can effectively alert medical staff in the operating room environment without being confused with the alarm sounds of critical equipment such as life monitors and anesthesia machines, an intermittent, non-rapid pulse sound in the mid-frequency range (e.g., 800Hz-1500Hz) is used. The pulse rhythm can be 1-1.5 times per second, with an audible duration of 0.5-0.67 seconds and an interval of 0.33-0.5 seconds.

[0037] In some implementations, the audio output module 61 supports multiple volume levels to ensure that its loudness can adapt to surgical environments with different background noise levels, with the default volume set to be 5-10 decibels higher than the ambient noise.

[0038] In these embodiments, the alarm device 6 can be activated with a slightly increasing volume and decremented when it stops, to avoid startling people with sudden noises.

[0039] In some embodiments, the audio output module 61 supports multiple volume levels. The volume adjustment switch can be located on the side of the lamp head and electrically connected to the audio output module 61. Medical staff can adjust the volume using the volume adjustment switch according to actual needs. The volume adjustment button can be located on the operation screen. It should be noted that the operation screen is prior art disclosed in publication number CN222543780U.

[0040] In some embodiments, a foot switch 9 (not shown in the figure) is also included, which has a displacement sensor or pressure sensor inside; the signal output terminal of the foot switch 9 is connected to the control unit 8. The foot switch 9 is installed on the operating room floor for convenient operation by medical staff using their feet.

[0041] In these embodiments, the foot switch 9 is designed as a dual-stroke switch; its effective stroke is 50mm to 70mm, and the switch is electrically connected to the drive motor 41. When a medical staff member steps on the front end of the foot switch 9, the displacement sensor (preferably) installed inside it begins to detect the downward displacement of the pedal and transmits the displacement signal to the control unit 8 in real time. After receiving the signal, the control unit 8 generates a proportional control command, and the drive motor 41 starts and operates continuously according to the command, thereby driving the mounting tube 12 to move through the transmission mechanism 42, ultimately achieving a smooth and continuous adjustment of the position of the surgical light head 3. As the pedal stroke changes, the output of the drive motor 41 is adjusted accordingly, thereby controlling the rotation amplitude and speed of the mounting tube 12. When the foot switch 9 is released and there is no more stroke input, the drive motor 41 immediately stops working. At this time, the mounting tube 12 stops rotating and is stably fixed in the current position, so that the surgical light head 3 remains in the target position. When the surgical light needs to be reset, the rear end of the foot switch 9 can be pressed. At this time, the drive motor 41 rotates in the opposite direction, and the reset position can be adjusted by the foot pedal travel. This design significantly improves the intuitiveness and convenience of operation.

[0042] The working process of this utility model is as follows:

[0043] Before surgery, medical staff can press the front part of the foot switch 9 to control the lamp head to move to a predetermined position as needed. During surgery, the ranging component 7 continuously measures the distance. When the control unit 8 determines that the distance between the surgical lamp head 3 and the head of the medical staff below is less than and / or equal to 20cm, the alarm device 6 is immediately activated to issue an audible alert to remind the doctor. After hearing the alarm, the medical staff presses the foot switch 9 until the surgical lamp head 3 is adjusted to a suitable position, and then releases the foot switch 9. When it is necessary to reset the surgical lamp, the rear part of the foot switch 9 is pressed to reset it.

[0044] It should be noted that the power supply system of this device comes from an external power source.

[0045] Furthermore, such as Figure 3 , 4 As shown, the drive device 4 of this apparatus can be installed according to actual needs: when the connecting shaft 423 is installed along the X-axis of the operating table, it can drive the surgical light to swing back and forth. When the same connecting shaft 423 is installed along the Y-axis of the operating table, it can realize the left and right swing of the surgical light relative to the operating table.

[0046] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. The above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An anti-collision device for a surgical room shadowless lamp, comprising a mounting part (1), at least one rotating arm assembly (2) rotatably connected to the mounting part (1), a lamp shaft (5) disposed at the end of the rotating arm assembly (2), and a surgical lamp head (3) disposed on the lamp shaft (5), wherein the mounting part (1) comprises a mounting base (11) and a mounting tube (12) extending from the bottom end of the mounting base (11), characterized in that: Also includes A ranging component (7) is disposed on the surgical lamp head (3); Control unit (8), which is electrically connected to the ranging component (7); An alarm device (6) is provided on the surgical lamp head (3) and is electrically connected to the control unit (8); The drive mechanism (4) includes a drive motor (41) and a transmission mechanism (42), wherein the drive motor (41) is disposed inside the mounting base (11).

2. The anti-collision device for operating room shadowless lamps according to claim 1, characterized in that, The transmission mechanism (42) includes a drive gear (421) connected to the output shaft of the drive motor (41), and a driven gear (422) disposed on the side of the drive gear (421) and meshing perpendicularly with the drive gear (421).

3. The anti-collision device for operating room shadowless lamps according to claim 2, characterized in that, The transmission mechanism also includes a connecting shaft (423) that passes through the driven gear (422). One end of the connecting shaft (423) is provided with a sleeve (424). The inner ring of the sleeve (424) is fixedly connected to the connecting shaft (423), and its outer ring is fixedly connected to the mounting tube (12). Both ends of the connecting shaft (423) are rotatably connected to the mounting base (11).

4. The anti-collision device for operating room shadowless lamps according to claim 3, characterized in that, Both the driving gear (421) and the driven gear (422) are bevel gears.

5. The anti-collision device for operating room shadowless lamps according to claim 4, characterized in that, The alarm device (6) includes an audio output module (61).

6. The anti-collision device for operating room shadowless lamps according to claim 5, characterized in that, The audio output module (61) supports multiple volume levels.

7. The anti-collision device for operating room shadowless lamps according to claim 6, characterized in that, It also includes a foot switch (9), which is equipped with a displacement sensor or a pressure sensor; the signal output terminal of the foot switch (9) is connected to the control unit (8).