File holder with light for root canal length measurement and root canal length measuring apparatus

CN224892764UActive Publication Date: 2026-10-27GUILIN WOODPECKER MEDICAL INSTR CO LTD
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Patent Information

Application Number
CN202522587734.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-10-27
Estimated Expiration
2035-12-05

AI Technical Summary

Technical Problem

现有的根管治疗在显微镜下进行,操作者很难同时观察显微镜和根测设备屏幕,并且诊室环境复杂,操作者难以听清根测仪警报声,因此,现有的根测仪使用时探测深度观察不便

Benefits of technology

[0015]本实用新型实施例提供的带灯光指示的根管长度测量用锉夹和根管长度测量仪的有益效果包括:

✦ Generated by Eureka AI based on patent content.

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Abstract

A kind of root canal length measuring with light indication is indicated and is used with the file holder and root canal length measuring instrument, it includes cover, end cap, elastic element, metal hook and lamp module.The cover is provided with positioning channel, at least part of cover is set as light transmission part, light transmission part participates in forming positioning channel;End cap and cover are slidably connected, end cap and cover cooperate to define the installation cavity that is communicated with positioning channel;Elastic element is connected to cover and end cap simultaneously, for making cover and end cap have the tendency of being away from each other;Metal hook is connected with end cap at one end, metal hook is arranged in positioning channel, and the other end of metal hook can extend out of positioning channel;Lamp module is installed in installation cavity.The operator can judge the depth of insertion of file needle under microscope by directly observing the color that light transmission part on cover is mapped by light, without switching sight line on microscope and root measuring instrument display back and forth, reduce operation difficulty, improve operation efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of oral medical device technology, and more specifically, to a root canal length measuring file clip with light indicator and a root canal length measuring instrument. Background Technology

[0002] A root canal measuring instrument is a medical device used by dentists to perform root canal treatment, also known simply as a root canal measuring instrument. Root canal treatment is a procedure for treating diseases of the tooth, pulp, and periapical region. Root canal treatment involves removing necrotic material from the root canal, properly disinfecting it, and filling the canal. This removes the adverse stimulation of the root canal contents on the periapical tissues, preventing periapical lesions or promoting the healing of existing periapical lesions. The root canal measuring instrument helps dentists complete root canal treatment by measuring the length of the tooth's apex. Guided by the instrument, dentists have a precise grasp of the root canal length for perfect filling. During use, it is necessary to constantly monitor the depth of the file insertion. Traditionally, devices for measuring insertion depth typically display the depth on the instrument's screen and issue an audible alarm.

[0003] The inventors discovered that existing root canal treatment devices have at least the following drawbacks: Current root canal treatments are performed under a microscope, making it difficult for operators to simultaneously observe both the microscope and the root canal measuring device screen. Furthermore, the complex environment of the clinic makes it difficult for operators to hear the alarm sound of the root canal measuring device. Therefore, current root canal measuring devices are inconvenient for depth detection and observation. Utility Model Content

[0004] The purpose of this invention is to provide a root canal length measuring file clip with light indicator and a root canal length measuring instrument. When in use, the operator can judge the insertion depth of the file by directly observing the color reflected by the light on the light-transmitting part of the outer cover under a microscope, without having to switch between the microscope and the root canal measuring instrument display, thus reducing the difficulty of operation and improving the efficiency of operation.

[0005] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides a root canal length measuring file clip with an indicator light, comprising: Outer cover, end caps, elastic components, metal hooks, and lamp modules; The outer cover is provided with a positioning channel, and at least a portion of the outer cover is configured as a light-transmitting portion, which participates in forming the positioning channel; the end cap and the outer cover are slidably connected, and the end cap and the outer cover cooperate to define a mounting cavity communicating with the positioning channel; the elastic member is connected to both the outer cover and the end cap, and is used to make the outer cover and the end cap tend to move away from each other; One end of the metal hook is connected to the end cap, the metal hook passes through the positioning channel, and the other end of the metal hook can extend out of the positioning channel; The lamp module is installed inside the mounting cavity.

[0006] In an optional embodiment, the lamp module includes a circuit board and a lamp body, the circuit board being mounted on the outer cover or the end cap, and the lamp body being mounted on the circuit board and electrically connected to the circuit board.

[0007] In an alternative embodiment, the circuit board has a surface facing the positioning channel, and the lamp body is mounted on the surface.

[0008] In an optional embodiment, the lamp module further includes a light guide cover, which is mounted on the end cap or the outer cover, and is used to guide the light emitted by the lamp body to the light-transmitting portion.

[0009] In an optional embodiment, the number of lamp bodies is multiple, and the multiple lamp bodies are arranged at intervals in the circumferential direction of the positioning channel.

[0010] In an optional embodiment, the lamp body is configured as an annular light strip extending circumferentially in the positioning channel.

[0011] In an optional embodiment, the light-transmitting portion is configured as an annular portion extending circumferentially in the positioning channel.

[0012] In an optional embodiment, a guide structure is provided between the end cap and the outer cover.

[0013] In an optional embodiment, the outer cover includes an outer cover body and an anti-detachment pin; The outer circumferential surface of the end cap is provided with an annular limiting step. The outer cover body is sleeved on the annular limiting step. The anti-detachment pin is connected to the outer cover body. The anti-detachment pin is used to approach the annular limiting step under the elastic force of the elastic element and can contact the end face of the annular limiting step away from the outer cover body.

[0014] Secondly, this utility model provides a root canal length measuring instrument, comprising: The root canal length measuring file clamp with light indicator as described in any of the foregoing embodiments.

[0015] The beneficial effects of the root canal length measuring file clip with light indicator and the root canal length measuring instrument provided in this embodiment of the invention include: In summary, the root canal length measuring file clamp provided in this embodiment allows for real-time feedback of the file insertion depth to the controller during use. When the lamp module is powered on and connected to the controller of the root canal measuring instrument, the lamp clamp holds the file for depth detection. The controller then adjusts the color of the lamp module based on the file insertion depth information. This color change in the lamp module corresponds to the color of the light reflected on the outer light-transmitting part. Since the operator can directly observe the light-transmitting part under a microscope, the color change of the light-transmitting part clearly indicates the file insertion depth. This eliminates the need for the operator to switch between the microscope and the root canal measuring instrument display, reducing operational difficulty. Direct observation of the light-transmitting part's color effectively guides the treatment procedure, improving surgical safety and efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the root canal length measuring file clip with light indicator provided in this embodiment; Figure 2 This is a cross-sectional view of the file clip for measuring root canal length provided in this embodiment; Figure 3 for Figure 2 A magnified schematic diagram of the partial structure at point A in the middle; Figure 4 for Figure 2 A magnified schematic diagram of the local structure at point B; Figure 5 for Figure 2 A magnified schematic diagram of the structure at point C.

[0018] icon: 100-Outer cover; 101-Positioning channel; 102-Receiving groove; 110-Outer cover body; 120-Anti-detachment pin; 200-End cap; 210-Groove; 220-Annular limiting step; 300-Elastic element; 400-Metal hook; 500-Lamp module; 510-Circuit board; 520-Lamp body; 530-Light guide cover. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0025] The overall structure, working principle, and technical effects of the device A provided by this utility model are described in detail below through embodiments and in conjunction with the accompanying drawings.

[0026] Please combine Figures 1-5This embodiment provides a root canal length measuring file clip with light indication, including an outer cover 100, an end cap 200, an elastic element 300, a metal hook 400, and a lamp module 500. The outer cover 100 is provided with a positioning channel 101, and at least a portion of the outer cover 100 is configured as a light-transmitting portion, which participates in forming the positioning channel 101; the end cap 200 and the outer cover 100 are slidably connected, and the end cap 200 and the outer cover 100 cooperate to define a mounting cavity communicating with the positioning channel 101; the elastic element 300 is connected to both the outer cover 100 and the end cap 200, and is used to make the outer cover 100 and the end cap 200 tend to move away from each other; one end of the metal hook 400 is connected to the end cap 200, the metal hook 400 passes through the positioning channel 101, and the other end of the metal hook 400 can extend out of the positioning channel 101; the lamp module 500 is installed in the mounting cavity.

[0027] As described above, the working principle of the root canal length measuring file clip provided in this embodiment is as follows: During use, the lamp module 500 is powered on and communicates with the controller of the root probe. It can hold the end cap 200 and apply force to the outer cover 100 to bring it closer to the end cap 200, increasing the exposed length of the front part of the metal hook 400. A clamping space is formed between the metal hook 400 and the front end of the outer cover 100. The file is placed in this clamping space, and the outer cover 100 is released. Under the elastic force of the elastic element 300, the outer cover 100 moves away from the end cap 200, reducing the clamping space. The file is then held in place by the outer cover 100 and the metal hook 400. When using the file for depth detection, the insertion depth is fed back to the controller in real time. The controller adjusts the color of the lamp module 500 in real time based on the insertion depth information. The color of the light reflected on the light-transmitting part of the outer cover 100 changes accordingly after the color of the lamp module 500 changes. Because the operator can directly observe the translucent part under the microscope, the depth of the file insertion can be clearly known by the color change of the translucent part. The operator does not need to switch back and forth between the microscope and the root canal monitor, which reduces the difficulty of operation. The treatment operation can be effectively guided by directly observing the color of the translucent part, thus improving the safety and efficiency of the surgery.

[0028] It should be understood that using files to detect root canal depth is a well-known existing technology. The technical solution in this embodiment does not modify the machine for using files to detect root canal depth. To avoid repetition and redundancy, how the file detects root canal depth is not described in detail in this embodiment. It is worth noting that in the prior art, when using files to detect root canal depth, the depth data is fed back in real time to the display of the root canal measuring instrument. The operator needs to observe the data on the display to obtain it directly. However, in actual operation, the operator needs to observe the position of the file under a microscope. Thus, the operator's line of sight needs to be changed back and forth, making data acquisition inconvenient.

[0029] In the technical solution of this application, when the operator observes the file under the microscope, the outer cover 100 is also within the field of view. In this way, the operator can observe the position of the file and know the depth of the file by the color change of the outer cover 100 without changing the viewing angle significantly, which is convenient to operate.

[0030] The following embodiments illustrate the details of the root canal length measuring file clip with light indicator of this application by way of example.

[0031] Please combine Figures 1-5 In this embodiment, optionally, the root canal length measuring file clamp includes an outer cover 100, an end cap 200, an elastic element 300, a metal hook 400, and a lamp module 500. The outer cover 100 and the end cap 200 are slidably connected in a first direction. The elastic element 300 is clamped between the outer cover 100 and the end cap 200. The elastic element 300 is in a compressed state, tending to move the outer cover 100 and the end cap 200 away from each other. One end of the metal hook 400 is mounted on the end cap 200, and the other end passes through the outer cover 100 and can extend from the front end of the outer cover 100 away from the end cap 200. After the metal hook 400 extends, it cooperates with the front end of the outer cover 100 to form an adjustable clamping space, in which the file can be clamped. The lamp module 500 is installed in the mounting cavity formed by the cooperation of the outer cover 100 and the end cap 200. The lamp module 500 can be electrically connected to the controller of the root canal measuring instrument via a wiring harness or Bluetooth, etc. The controller's file probe can acquire the depth of the file probe in real time. When the file probe depth changes, the controller can adjust the color of the lamp module 500 according to the depth data. The color change can be a change between different colors or a gradient of the same color, etc. The color change of the lamp module 500 can be directly reflected through the outer cover 100, and the operator can directly obtain the file probe depth by observing the color of the outer cover 100.

[0032] Please combine Figures 2-3 In this embodiment, optionally, the outer cover 100 includes an outer cover body 110 and an anti-detachment pin 120. The anti-detachment pin 120 is connected to the outer cover body 110 and can slide relative to the outer cover body 110 in a second direction. When the outer cover body 110 and the end cap 200 are connected, the first direction is perpendicular to the second direction.

[0033] Optionally, the outer cover body 110 is generally elongated, and the outer cover body 110 is provided with a positioning channel 101, which extends through the front and rear ends of the outer cover body 110 along its length. At least a portion of the outer cover body 110 is configured as a light-transmitting part, which participates in forming the positioning channel 101; that is, the light-transmitting part is at least a portion of the channel wall surrounding the positioning channel 101. For example, in one embodiment, the outer cover body 110 can be directly made of a light-transmitting material, and the entire outer cover body 110 is light-transmitting. Alternatively, in other embodiments, the annular portion near the front end of the outer cover body 110 is a light-transmitting part, which extends circumferentially in the positioning channel 101. Setting the entire outer cover body 110 as a light-transmitting part or a portion of the outer cover body 110 as annular light-transmitting parts can increase the visible range, making it easier for the operator to obtain the color of the lamp module 500, thereby facilitating a direct and intuitive judgment of the probe depth. Meanwhile, the outer cover body 110 is made entirely of light-transmitting material, which has a strong integrity and no splicing seams or connecting seams, and has good waterproof and dustproof effects.

[0034] Please combine Figure 2 and Figure 5 Optionally, the front end of the outer cover body 110 is provided with a receiving groove 102. In the initial state, the front end of the metal hook 400 is stored in the receiving groove 102, making the overall structure more compact.

[0035] Optionally, the anti-detachment pin 120 can be screwed to the outer cover body 110. When the anti-detachment pin 120 rotates, it can be inserted into or leave the positioning channel 101 along the radial direction of the positioning channel 101.

[0036] Furthermore, the number of anti-detachment pins 120 can be one or more. When there are multiple anti-detachment pins 120, they can be evenly spaced around the positioning channel 101. In some embodiments, the number of anti-detachment pins 120 can be one, two, or three, etc.

[0037] It is worth noting that, unless otherwise specified, the front end is the end closest to the patient's mouth, and the rear end is the end closest to the operator.

[0038] In this embodiment, optionally, the end cap 200 is provided with a groove 210, and one side of the groove of the end cap 200 is inserted into the rear end of the outer cover body 110, and the two are slidably engaged in the first direction. The end cap 200 and the outer cover body 110 cooperate to define an installation cavity that communicates with the positioning channel 101. In other words, the groove of the groove 210 is directly connected to the positioning channel 101.

[0039] It should be understood that a positioning post can be set on the bottom wall of the groove of the end cap 200, and the elastic element 300 can be a spring. The elastic element 300 is inserted into the groove 210 and sleeved on the outside of the positioning post. The positioning post positions the elastic element 300, and the position of the elastic element 300 is stable and reliable.

[0040] Furthermore, an annular limiting step 220 is provided on the outer peripheral surface of the end cap 200. The cross-sectional profile of the annular limiting step 220 may be non-circular, and a portion of the positioning channel 101 on the outer cover body 110 may also be non-circular. The outer cover body 110 is sleeved on the annular limiting step 220 with its rear end. The anti-detachment pin 120 is located on the front end side of the annular limiting step 220 away from the front end of the outer cover body 110. As the depth of the anti-detachment pin 120 screwed into the positioning channel 101 increases, the anti-detachment pin 120 can contact the side of the annular limiting step 220 away from the front end of the outer cover body 110, thereby preventing the outer cover body 110 and the end cap 200 from falling off under the elastic force of the elastic member 300.

[0041] It should be understood that the elastic element 300 can be a spring, which has a simple structure, stable elastic force, can be directly purchased, and has a low cost.

[0042] It should be noted that, since the cross-section of the annular limiting step 220 is non-circular, it slides with the outer cover body 110 and can play a guiding role, that is, it can restrict the rotation of the outer cover body 110 relative to the end cap 200, thereby improving stability. The annular limiting step 220 and the positioning channel 101 cooperate to form a guiding structure.

[0043] In this embodiment, optionally, the metal hook 400 can be a wire hook, which can be directly referred to in existing known structures.

[0044] Please combine Figure 2 and Figure 4 In this embodiment, optionally, the lamp module 500 includes a circuit board 510, a lamp body 520, and a light guide 530. The circuit board 510 can be a ring-shaped circuit board 510, which can be fixed inside the positioning channel 101. The circuit board 510 can be connected to the controller via a power cord or the like. Multiple lamp bodies 520 can be present, all fixed on the circuit board 510 and arranged in a ring. All lamp bodies 520 are located on the front surface of the circuit board 510 facing the outer cover body 110, facilitating the projection of light onto the light-transmitting portion of the outer cover 100. The combined effect of multiple lamp bodies 520 provides stronger illumination. The light guide 530 can be mounted on the circuit board 510. The light guide 530 is a ring-shaped cover that guides the light emitted by the lamp bodies 520 to the light-transmitting portion, facilitating observation of the color of the outer cover 100.

[0045] It should be understood that in some embodiments, the lamp body 520 may also be configured as a ring-shaped light strip.

[0046] It should be understood that in some embodiments, the circuit board 510 may also be installed inside the outer casing 110. The light guide 530 may also be installed inside the end cap 200 or the outer casing 110.

[0047] It is worth noting that when the circuit board 510 is a ring-shaped plate, both the elastic element 300 and the metal hook 400 pass through the circuit board 510 to avoid interference.

[0048] The root canal length measuring file clip provided in this embodiment allows the light emitted by the lamp module 500 to be guided to the light-transmitting part of the outer cover 100 through the light guide cover 530. When the operator observes the file, they can simultaneously observe the color of the light-transmitting part. When the file's detection depth changes, this information is transmitted to the controller. The controller can then control the working state of the lamp module 500 and adjust the light color based on this depth information. The operator can intuitively obtain the detection depth through the light color, making operation convenient.

[0049] This embodiment also provides a root canal length measuring instrument, including a root canal length measuring file clip with light indication, which has advantages such as convenient operation and high treatment efficiency.

[0050] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A root canal length measuring file clamp with light indicator, characterized in that, include: Outer cover (100), end cap (200), elastic element (300), metal hook (400) and lamp module (500); The outer cover (100) is provided with a positioning channel (101), and at least a portion of the outer cover (100) is configured as a light-transmitting portion, which participates in forming the positioning channel (101); the end cap (200) and the outer cover (100) are slidably connected, and the end cap (200) and the outer cover (100) cooperate to define a mounting cavity communicating with the positioning channel (101); the elastic member (300) is connected to both the outer cover (100) and the end cap (200) to make the outer cover (100) and the end cap (200) tend to move away from each other; One end of the metal hook (400) is connected to the end cap (200), the metal hook (400) passes through the positioning channel (101), and the other end of the metal hook (400) can extend out of the positioning channel (101). The lamp module (500) is installed inside the mounting cavity.

2. The root canal length measuring file clamp with light indicator as described in claim 1, characterized in that: The lamp module (500) includes a circuit board (510) and a lamp body (520). The circuit board (510) is mounted on the outer cover (100) or the end cap (200), and the lamp body (520) is mounted on the circuit board (510) and electrically connected to the circuit board (510).

3. The root canal length measuring file clip with light indicator as described in claim 2, characterized in that: The circuit board (510) has a surface facing the positioning channel (101), and the lamp body (520) is mounted on the surface.

4. The root canal length measuring file clamp with light indicator as described in claim 2, characterized in that: The lamp module (500) also includes a light guide cover (530), which is mounted on the end cap (200) or the outer cover (100). The light guide cover (530) is used to guide the light emitted by the lamp body (520) to the light-transmitting part.

5. The root canal length measuring file clamp with light indicator as described in claim 2, characterized in that: The number of lamp bodies (520) is multiple, and the multiple lamp bodies (520) are arranged at intervals in the circumferential direction of the positioning channel (101).

6. The root canal length measuring file clamp with light indicator as described in claim 2, characterized in that: The lamp body (520) is configured as an annular lamp strip extending circumferentially in the positioning channel (101).

7. The root canal length measuring file clip with light indicator according to any one of claims 1-6, characterized in that: The light-transmitting portion is configured as an annular portion extending circumferentially in the positioning channel (101).

8. The root canal length measuring file clip with light indicator according to any one of claims 1-6, characterized in that: A guide structure is provided between the end cap (200) and the outer cover (100).

9. The root canal length measuring file clip with light indicator according to any one of claims 1-6, characterized in that: The outer cover (100) includes an outer cover body (110) and an anti-detachment pin (120); The outer circumferential surface of the end cap (200) is provided with an annular limiting step (220). The outer cover body (110) is sleeved on the annular limiting step (220). The anti-detachment pin (120) is connected to the outer cover body (110). The anti-detachment pin (120) is used to approach the annular limiting step (220) under the elastic force of the elastic member (300) and can contact the end face of the annular limiting step (220) away from the outer cover body (110).

10. A root canal length measuring instrument, characterized in that, include: The root canal length measuring file clamp with light indicator as described in any one of claims 1-9.