Self-locking 360-degree adjustable white balance cap support assembly

By using a self-locking 360° adjustable white balance cap bracket assembly, the problems of insufficient angle adjustment and unstable self-locking in the existing technology are solved, realizing 360° arbitrary angle adjustment and stable stopping of the white balance cap, improving the accuracy of image calibration and the convenience of operation.

CN224070405UActive Publication Date: 2026-04-03SHANGHAI OUTAI MEDICAL EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing white balance cap bracket components lack flexibility in angle adjustment, making it difficult to achieve arbitrary 360° angle adjustment and reliable self-locking, which affects the accuracy and stability of image calibration and fails to meet personalized usage needs.

Method used

A self-locking 360° adjustable white balance cap support assembly was designed. Through the combination of support ring, support rod, fastening screw and compression spring, the white balance cap can be adjusted to any angle of 360° and stabilized. The automatic locking and unlocking is achieved by using precise thread depth control and the rebound force of the compression spring, which can adapt to the individual differences of different doctors.

Benefits of technology

It enables the white balance cap to remain stable within a 360° rotation range, improving the convenience and reliability of image calibration, meeting personalized operation needs, and increasing work efficiency in the medical field.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of medical instruments, in particular to a self-locking 360-degree adjustable white balance cap support assembly. The utility model aims to solve the problems that the existing bracket assembly cannot conveniently realize 360-degree any-angle adjustment and self-locking stop and cannot meet the requirements of different doctor operation scenes. The assembly comprises a white balance cap, a support ring, a support rod, a fastening screw and a pressure spring, and through unique structural design, such as matching of the white balance cap and a boss and a groove of the support ring, angle dislocation, precise control of the depth of an internal thread of the support rod and the like, 360-degree any-angle adjustment is achieved, and stable staying can be achieved. The white balance cap has the advantages that the white balance cap does not fall off after rotating by 360 degrees after being installed, the angle can be adjusted according to habits of doctors, automatic locking and unlocking at any time can be achieved, reliable support is provided for endoscope image calibration, and medical image quality can be improved in an assisted mode.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a self-locking 360° adjustable white balance cap bracket assembly. Background Technology

[0002] In modern medical surgery, endoscopes, as key devices capable of penetrating deep into the human body and acquiring direct images, play a crucial role in medical diagnosis and surgical procedures due to the color reproduction accuracy of their imaging systems. Accurate color reproduction allows doctors to clearly distinguish subtle differences in human tissues, such as the variations in color and texture between different diseased tissues and normal tissues. This is essential for early disease diagnosis and the development of precise treatment plans.

[0003] The white balance cap bracket assembly is a crucial auxiliary tool in the calibration process of the endoscopic imaging system. Before surgery, the surgeon uses a white balance cap with a whiteness value greater than 75.4% as a reference color chart, aligning the endoscope lens with the cap to compare and correct the image from the endoscopic imaging system. This ensures that the final audio-visual or photographic images displayed or captured by the endoscope accurately reproduce the actual images of the internal tissues of the human body. This precisely reproduced image data becomes extremely important information carriers when the surgeon cannot immediately make an accurate assessment of the patient's condition in the operating room. It provides doctors from different departments and hospitals with a real, accurate, and intuitive view of the patient's internal condition for remote or on-site consultations, allowing them to understand the condition as if they were physically present, thus making appropriate diagnoses and developing timely and effective treatment plans for the patient.

[0004] However, currently available white balance cap support components have several problems that urgently need to be addressed. Traditional support components lack flexibility in angle adjustment, failing to achieve 360° arbitrary angle adjustment. This limits doctors' ability to flexibly adjust the position of the white balance cap according to actual operational needs. Furthermore, after adjustment, they lack a reliable self-locking function; even slight touches or vibrations can cause the white balance cap to shift, affecting the accuracy and stability of image calibration. In addition, due to significant differences among doctors in height, endoscope holding habits, and operating gestures, existing support components cannot adequately meet personalized usage needs, thus affecting the efficiency and quality of the entire endoscopic camera system image calibration process. Utility Model Content

[0005] The purpose of this invention is to provide a self-locking 360° adjustable white balance cap bracket assembly, which has a self-locking function and can achieve precise adjustment and stable holding at any angle of 360°, fully meeting the diverse operational needs of different doctors and greatly improving the convenience and reliability of endoscopic image calibration.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a self-locking 360° adjustable white balance cap bracket assembly, including a white balance cap, a bracket ring, a bracket rod, a fastening screw, and a compression spring; the bracket rod has an inner hole for accommodating the compression spring, and one end face of the bracket rod is opposite to the countersunk step on the outer circle of the bracket ring. The bracket ring and the bracket rod are connected by the fastening screw, so that the bracket rod is embedded in the countersunk step of the bracket ring; the white balance cap is fitted onto the bracket ring.

[0007] As a further improvement to the technical solution of this utility model, the white balance cap has an outer diameter that is adapted to the support ring, and a square boss is provided on the outer periphery of one end of the white balance cap.

[0008] As a further improvement to the technical solution of this utility model, the bracket ring is provided with a groove at the corresponding position, and the square boss of the white balance cap can be embedded in the groove of the bracket ring. After the end faces of the two touch, the white balance cap can rotate relative to the bracket ring.

[0009] As a further improvement to the technical solution of this utility model, the support ring has an inner ring groove. When the white balance cap is fitted into the support ring and rotates, the square boss of the white balance cap rotates in the inner ring groove of the support ring, and the axial movement of the white balance cap is restricted by the inner ring groove.

[0010] As a further improvement to the technical solution of this utility model, the square boss on the outer circumferential conical surface of the white balance cap has its center of symmetry offset from the upright direction of the upper surface of the white balance cap by an angle of 20°.

[0011] As a further improvement to the technical solution of this utility model, the rotation center of the countersunk groove on the end face of the bracket is offset by 20° in the circumferential direction from the white balance cap boss, so that the two match.

[0012] As a further improvement to the technical solution of this utility model, the rotation center of the white balance cap and the rotation center of the support rod are misaligned by 90° in terms of spatial perspective.

[0013] As a further improvement to the technical solution of this utility model, the internal thread depth of the bracket rod of the white balance cap must ensure that the fastening screw can be fully screwed into the thread of the bracket rod.

[0014] As a further improvement to the technical solution of this utility model, the depth of the internal thread of the support rod must also ensure that the support rod has a certain possibility of rotation within the countersunk hole of the support ring.

[0015] As a further improvement to the technical solution of this utility model, the compression spring is installed in the inner hole of the support rod, and the two ends of the compression spring are in contact with the bottom surface of the inner hole of the support rod and the bottom surface of the countersunk hole step of the support ring, respectively.

[0016] In summary, this utility model has the following beneficial effects:

[0017] Excellent stability: The white balance cap bracket assembly of this utility model can keep the white balance cap stable within a 360° rotation range when installed, without falling off, and always maintain the original installation state, providing a reliable foundation for endoscope color temperature calibration.

[0018] Highly personalized fit: Taking into full account the individual differences of different doctors, the white balance cap can be flexibly adjusted to the most suitable angle according to the doctor's height, unique hand gestures or habits when holding the endoscope, significantly improving the comfort and convenience of the operation.

[0019] Convenient user experience: It can automatically lock and unlock at any time, truly enabling adjustment and operation as needed, greatly improving work efficiency and meeting the needs of rapid and precise operation in medical settings. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the white balance cap bracket assembly in an embodiment of the present invention.

[0022] Figure 2 This is a three-dimensional appearance diagram of the white balance cap bracket assembly in an embodiment of the present invention.

[0023] Figure 3 This is a three-dimensional appearance diagram of the bottom of the white balance cap bracket assembly in an embodiment of this utility model.

[0024] Figure 4 This is a schematic diagram of the white balance cap bracket assembly rotating 360° in an embodiment of this utility model.

[0025] Reference numerals: 1-White balance cap; 2-Support ring; 3-Support rod; 4-Compression spring; 5-Fasting screw. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] In this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Please see Figures 1 to 4 This utility model provides a technical solution: a self-locking 360° adjustable white balance cap bracket assembly, including a white balance cap 1, a bracket ring 2, a bracket rod 3, a fastening screw 5, and a compression spring 4; the bracket rod 3 has an inner hole to accommodate the compression spring 4, and the end face of the bracket rod 3 is aligned with the countersunk step on the outer circle of the bracket ring 2. The bracket ring 2 and the bracket rod 3 are connected by the fastening screw 5, so that the bracket rod 3 is embedded in the countersunk step of the bracket ring 2; the white balance cap 1 is fitted into the bracket ring 2, and the square boss of the white balance cap 1 is embedded in the groove of the bracket ring 2. When the end faces of the two touch, rotating the white balance cap 1 clockwise causes the square boss of the white balance cap 1 to rotate in the inner ring groove of the bracket ring 2, and the axial movement direction of the white balance cap 1 is blocked by the inner ring groove of the bracket ring 2.

[0032] Specifically, in this embodiment, the outer circumferential conical surface of the white balance cap 1 is provided with a square boss, and the center of symmetry of the square boss is offset from the upright direction of the upper end face of the white balance cap 1 by an angle of 20°; the rotation center of the countersunk groove on the end face of the support ring 2 is offset from the circumferential direction by an angle of 20° in the same direction, so that the boss of the white balance cap 1 matches the groove on the support ring 2; and the rotation center of the white balance cap 1 and the rotation center of the support rod 3 are offset from the spatial perspective by an angle of 90°.

[0033] It should be noted that the support assembly of this utility model consists of a white balance cap 1, a support ring 2, a support rod 3, a fastening screw 5, and a compression spring 4. First, the compression spring 4 is placed inside the support rod 3, ensuring that one end face of the support rod 3 precisely aligns with the countersunk step on the outer circumference of the support ring 2. The fastening screw 5 secures this connection, allowing the support rod 3 to be firmly embedded in the countersunk step of the support ring 2. Next, the white balance cap 1 is fitted onto the support ring 2, allowing the square protrusion of the white balance cap 1 to cleverly embed into the groove of the support ring 2. Once the end faces are in contact, the white balance cap 1 is rotated clockwise. At this point, the square protrusion of the white balance cap 1 rotates within the inner ring groove of the support ring 2. The inner ring groove of the support ring 2 effectively prevents axial movement of the white balance cap 1, ensuring its stability during operation.

[0034] A sophisticated angle-misaligned matching structure: A square boss is added to the outer circumferential conical surface of the white balance cap 1. The center of symmetry of this boss is offset by 20° from the upright direction of the upper surface of the white balance cap 1. Simultaneously, the rotation center of the countersunk groove on the end face of the support ring 2 is also offset by 20° on the circumference in the same direction. In this way, the boss on the white balance cap 1 and the groove on the support ring 2 perfectly match. Crucially, the rotation center of the white balance cap 1 and the rotation center of the support rod 3 are offset by 90° in spatial perspective. This unique design ensures that when the support ring 2 rotates around the rotation center of the support rod 3, it does not interfere with the relative rotational movement between the white balance cap 1 and the support ring 2, effectively guaranteeing the stability of the white balance cap 1 within the support assembly and preventing rotation and falling.

[0035] Precise thread depth control: The internal thread depth of the bracket rod 3 of the white balance cap 1 is carefully and strictly controlled. On the one hand, it is necessary to ensure that the fastening screw 5 can be fully locked on the bracket rod 3 to guarantee the reliability of the connection; on the other hand, it is also necessary to allow the bracket rod 3 to rotate slowly within the countersunk hole of the bracket ring 2. Based on this, combined with the rebound force of the compression spring 4, the white balance cap 1 and the bracket ring 2 assembly are given the ability to precisely stop at any position within the 360° rotation range, and remain stable after being released, without rotating or falling off.

[0036] Specifically, in this embodiment, the internal thread depth of the bracket rod 3 of the white balance cap 1 is strictly controlled. It is necessary to ensure that the fastening screw 5 can be fully locked onto the bracket rod 3, and that the bracket rod 3 can rotate slowly within the countersunk hole of the bracket ring 2. Combined with the rebound force of the compression spring 4, the white balance cap 1 and the bracket ring 2 assembly can stop at any point within the 360° rotation range without rotating or falling off, and remain in a released state.

[0037] Specifically, in this embodiment, the white balance cap 1, when installed, can remain in its original installation state within a 360° rotation range without falling off.

[0038] Specifically, in this embodiment, the white balance cap 1 can be adjusted to a suitable angle according to the doctor's height, hand gestures or habits when holding the endoscope.

[0039] Specifically, in this embodiment, the solution can achieve automatic locking and unlocking at any time, allowing for adjustment, movement, and stopping as needed.

[0040] Specifically, in this embodiment, the support rod 3, support ring 2, and white balance cap 1 are made of non-metallic materials such as ABS or POM to meet the usage habits and application scenarios of doctors.

[0041] Specifically, in this embodiment, the tolerance accuracy of the fit between the countersunk step of the support ring 2 and the support rod 3 is controlled within ±0.05mm to ensure the stability of the connection and the smoothness of rotation.

[0042] Specifically, in this embodiment, the head of the fastening screw 5 is provided with a slotted or Phillips head, which facilitates installation and removal using common tools.

[0043] Specifically, in this embodiment, the minimum fitting gap between the inner diameter of the white balance cap 1 and the outer diameter of the endoscope lens is 13mm. It should be noted that this gap is maintained to prevent the outer surface of the endoscope insertion part from rubbing against the inner wall of the white balance cap 1, which would cause damage to the outer surface of the endoscope insertion part.

[0044] How to use this utility model:

[0045] Installation of bracket rod 3: Using a suitable screwdriver, align bracket rod 3 of the white balance cap 1 bracket assembly with the pre-drilled threaded hole on the side of the image processor chassis, and slowly screw it in. During the process, keep bracket rod 3 perpendicular to the side of the chassis to ensure proper thread engagement. After bracket rod 3 is screwed in to the appropriate depth, use a tool to tighten it appropriately to ensure that bracket rod 3 is securely fastened and to prevent loosening during subsequent operations.

[0046] Initial installation of white balance cap 1: Hold white balance cap 1 and align its small end with bracket ring 2. Slowly slip it on, paying attention to the positional relationship between the square protrusion on white balance cap 1 and the groove on bracket ring 2. Ensure that the square protrusion is precisely embedded in the groove on bracket ring 2 to ensure a stable initial connection between the two.

[0047] White balance cap 1 locking: After the white balance cap 1 is fully inserted into the bracket ring 2, rotate the white balance cap 1 clockwise with appropriate force. During the rotation, you can feel the resistance gradually increasing until it feels tight, indicating that the white balance cap 1 is completely locked. At this time, the square boss reaches the locking position in the inner ring groove of the bracket ring 2.

[0048] Angle Adjustment: Hold the white balance cap 1 bracket assembly with your hand and slowly rotate the assembly around the rotation center of the bracket rod 3. Maintain a smooth rotation and avoid violent shaking. Stop rotating when the inner hole of the white balance cap 1 faces you; this position facilitates the subsequent insertion of the endoscope lens.

[0049] Endoscope lens calibration: The operator holds the endoscope in their right hand, keeping the lens vertical, and slowly inserts the endoscope lens into the inner hole of the white balance cap 1. During insertion, by observing or using auxiliary scale markings, ensure that the lens stops at two-thirds of the depth of the white balance cap 1 to ensure calibration accuracy.

[0050] White balance operation: The operator uses their left hand to locate and select the white balance button on the image processor panel, and presses the button smoothly to start the white balance calibration program of the endoscope lens. At this time, it is necessary to wait for the image processor to complete the calibration calculation.

[0051] Remove the white balance cap 1: After completing the white balance calibration of the endoscope lens, the operator slowly and steadily pulls the endoscope lens out of the white balance cap 1, taking care to avoid collisions with other equipment or components to prevent damage to the white balance cap 1 or affecting the equipment status.

[0052] Storage and Protection: After completing the endoscope white balance, hold the white balance cap 1 bracket assembly again and rotate it around the rotation center of the bracket rod 3 until the inner hole of the white balance cap 1 is facing down. This placement method can effectively prevent dust and debris from falling into the inner hole of the white balance cap 1, keeping it clean for the next use.

[0053] In summary, the present invention has the following advantages over the prior art:

[0054] Excellent stability: The white balance cap bracket assembly of this utility model can keep the white balance cap stable within a 360° rotation range when installed, without falling off, and always maintain the original installation state, providing a reliable foundation for endoscope color temperature calibration.

[0055] Highly personalized fit: Taking into full account the individual differences of different doctors, the white balance cap can be flexibly adjusted to the most suitable angle according to the doctor's height, unique hand gestures or habits when holding the endoscope, significantly improving the comfort and convenience of the operation.

[0056] Convenient user experience: It can automatically lock and unlock at any time, truly enabling adjustment and operation as needed, greatly improving work efficiency and meeting the needs of rapid and precise operation in medical settings.

[0057] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A self-locking 360° adjustable white balance hat holder assembly, characterized by: The white balance cap, the support ring, the support rod, the fastening screw and the compression spring are included; the support rod is provided with an inner hole containing the compression spring, the end face of the support rod is opposite to the counterbore step on the outer circle of the support ring, the support ring and the support rod are connected through the fastening screw, the support rod is embedded into the counterbore step of the support ring; the white balance cap is sleeved into the support ring.

2. A self-locking 360° adjustable white balance hat holder assembly according to claim 1, characterized in that: The white balance cap has an outer diameter matched with the support ring, and a square boss is arranged on the outer periphery of one end of the white balance cap.

3. A self-locking 360° adjustable white balance hat holder assembly according to claim 2, characterized in that: The support ring is provided with a groove at a corresponding position, the square boss of the white balance cap can be embedded into the groove of the support ring, and the white balance cap can be rotated relative to the support ring after the end faces of the two are in contact.

4. A self-locking 360° adjustable white balance hat holder assembly according to claim 1, characterized in that: The support ring has an inner ring groove, when the white balance cap is sleeved into the support ring and rotated, the square boss of the white balance cap rotates in the inner ring groove of the support ring, and the axial movement of the white balance cap is limited by the inner ring groove.

5. A self-locking 360° adjustable white balance hat holder assembly according to claim 2, characterized in that: The square boss on the outer circumferential conical surface of the white balance cap is misaligned with the normal direction of the upper end face of the white balance cap by an angle of 20°.

6. A self-locking 360° adjustable white balance hat holder assembly according to claim 3, characterized in that: The rotation center of the counterbore groove on the end face of the support ring is misaligned with the boss of the white balance cap by an angle of 20° in the circumferential direction, so that the two are matched.

7. A self-locking 360° adjustable white balance hat holder assembly according to claim 1, characterized in that: The rotation center of the white balance cap is misaligned with the rotation center of the support rod by an angle of 90° in the spatial visual angle.

8. A self-locking 360° adjustable white balance hat holder assembly according to claim 1, characterized in that: The inner thread depth of the support rod of the white balance cap needs to ensure that the fastening screw can be completely screwed into the thread of the support rod.

9. A self-locking 360° adjustable white balance hat holder assembly according to claim 1, characterized in that: The inner thread depth of the support rod needs to ensure that the support rod has a certain possibility of rotation in the counterbore of the support ring.

10. A self-locking 360° adjustable white balance hat holder assembly according to claim 1, characterized in that: The compression spring is installed in the inner hole of the support rod, and the two ends of the compression spring are in contact with the bottom surface of the inner hole of the support rod and the bottom surface of the counterbore step of the support ring respectively.