A root canal broken needle pickup device

CN224655427UActive Publication Date: 2026-08-21SHENZHEN BAOAN DISTRICT CENT HOSPITAL
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Patent Information

Application Number
CN202521017085.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2026-08-21
Estimated Expiration
2035-05-22

AI Technical Summary

Technical Problem

[0004]然而柱体呈圆柱形,管体内部也为圆形,当柱体与管体内部夹持时,可能会导致夹持不稳,影响断针正常取出

Benefits of technology

[0014]与相关技术相比较,本实用新型提供的一种根管断针拾取装置具有如下有益效果:通过转动连接块带动旋转杆,使转盘旋转,再利用滑动块底部移动块与螺旋圈的配合,使夹块进行夹持,再转动螺纹帽,对固定块进行挤压,从而对旋转杆进行固定,有效的使夹块进行固定夹持。

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Abstract

The utility model provides a kind of root canal broken needle pickup device, it is related to root canal broken needle pickup field, including protective shell and shell, protective shell bottom is fixedly connected with shell top, protective shell side is equipped with clamping assembly, protective shell inside is equipped with limiting assembly, shell inside is equipped with rotating assembly, shell bottom is equipped with fixed component, rotating assembly one end is fixedly connected with clamping assembly one side, rotating assembly other end passes through fixed component center place;Rotary connecting block drives carousel, by the cooperation of sliding block bottom moving block and spiral, make clamping block clamping, again rotate screw cap, extrude fixed block, to rotate lever is fixed, effectively make clamping block fixed clamping.
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Description

Technical Field

[0001] This utility model relates to the field of root canal broken needle pickup, and in particular to a root canal broken needle pickup device. Background Technology

[0002] Root canal treatment is a tooth preservation technique for pulp or periapical diseases. It involves removing infected material from the root canal, disinfecting, and filling it tightly to preserve the function of the affected tooth. Root canal needle breakage is an unexpected situation caused by the breakage of an instrument during root canal treatment. The treatment method depends on the location of the broken needle, the symptoms, and the risk of infection.

[0003] The existing publication number CN214342688U discloses a root canal broken needle pickup device, including a column and a tube sleeved on the outside of the column. The column can move relative to the tube along the length direction of the tube. The head end of the tube has a first opening that axially extends into the inner cavity of the tube. The front end of the column in the extension direction has a clamping section. The cross-sectional area of ​​the clamping section gradually decreases from the extension direction. The outer peripheral surface of the clamping section and the tube form a clamping space for clamping the broken needle.

[0004] However, the cylinder is cylindrical, and the inside of the tube is also circular. When the cylinder and the inside of the tube are clamped together, the clamping may be unstable, affecting the normal removal of the broken needle.

[0005] Therefore, it is necessary to provide a new root canal broken needle pickup device to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a root canal broken needle pickup device.

[0007] The root canal broken needle pickup device provided by this utility model includes: a protective shell and an outer shell. The bottom of the protective shell is fixedly connected to the top of the outer shell. A clamping component is provided on one side of the protective shell. A limiting component is provided inside the protective shell. A rotating component is provided inside the outer shell. A fixing component is provided at the bottom of the outer shell. One end of the rotating component is fixedly connected to one side of the clamping component. The other end of the rotating component passes through the center of the outer shell and the fixing component.

[0008] The clamping assembly includes three clamping blocks, three connecting plates, three connecting strips, three sliding components, and a limiting component. The bottoms of the three clamping blocks are fixedly connected to the tops of the three connecting plates. The bottoms of the three connecting plates are respectively fixedly connected to one side of the three sliding components. The three sliding components are respectively disposed inside the three connecting strips. Each of the three connecting strips has a sliding groove inside. One side of the three connecting strips is fixedly connected to the inner side of the protective shell. The three sliding components are slidably connected in the three sliding grooves. Each of the three sliding components has a moving block at its bottom. The three moving blocks are disposed on the limiting component.

[0009] Preferably, the fixing component includes a connecting block, a threaded cap, a fixing block, a limiting plate, and a connecting post. One side of the limiting plate is fixedly connected to one side of the outer shell. The limiting plate has a connecting post inside, and the connecting post has a fixing block inside. The top of the connecting post has a threaded cap. The bottom of the fixing block is fixedly connected to the bottom of the inner side of the connecting post. The threaded cap is threadedly connected to the connecting post. One end of the rotating component passes through the center of the limiting plate, the connecting post, and the threaded cap and is fixedly connected to one side of the connecting block.

[0010] Preferably, the sliding component includes three sliding blocks, which are respectively disposed in the internal grooves of the three connecting strips, and the sliding blocks are movably connected in the grooves.

[0011] Preferably, the limiting component includes a spiral ring, which is disposed on the turntable.

[0012] Preferably, the rotating assembly includes a turntable and a rotating rod. The turntable is disposed inside the protective shell. A spiral ring is provided on one side of the turntable. The other side of the turntable is fixedly connected to one end of the rotating rod. The other end of the rotating rod passes through the interior of the shell, the center of the limiting plate and the center of the connecting column, and is fixedly connected to the center of one side of the connecting block.

[0013] Preferably, the cross-section of the sliding block is cross-shaped.

[0014] Compared with related technologies, the root canal broken needle pickup device provided by this utility model has the following beneficial effects: by rotating the connecting block to drive the rotating rod, the turntable rotates, and then the sliding block at the bottom of the sliding block cooperates with the spiral ring to clamp the clamping block. Then, by rotating the threaded cap, the fixing block is squeezed, thereby fixing the rotating rod and effectively fixing and clamping the clamping block. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of a root canal broken needle pickup device provided by this utility model;

[0016] Figure 2 for Figure 1 Side view of the clamping component shown;

[0017] Figure 3 for Figure 1 The fixed component section view shown;

[0018] Figure 4 for Figure 1 The top view shown.

[0019] The following are the labels in the diagram: 1. Clamping block; 101. Connecting plate; 102. Connecting strip; 103. Sliding plate; 104. Spiral ring; 105. Protective shell; 106. Turntable; 2. Outer shell; 201. Rotating rod; 4. Connecting block; 401. Threaded cap; 402. Fixing block; 403. Limiting plate; 404. Connecting column. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1-4 ,in, Figure 1 A schematic diagram of a preferred embodiment of a root canal broken needle pickup device provided by this utility model; Figure 2 for Figure 1 Side view of the clamping component shown; Figure 3 for Figure 1 The fixed component section view shown; Figure 4 for Figure 1 The top view shown.

[0022] In the specific implementation process, such as Figure 1-4 As shown, it includes: a protective shell 105 and an outer shell 2. The bottom of the protective shell 105 is fixedly connected to the top of the outer shell 2. A clamping component is provided on one side of the protective shell 105. A limiting component is provided inside the protective shell 105. A rotating component is provided inside the outer shell 2. A fixing component is provided at the bottom of the outer shell 2. One end of the rotating component is fixedly connected to one side of the clamping component. The other end of the rotating component passes through the center of the outer shell and the fixing component.

[0023] The clamping assembly includes three clamping blocks 1, three connecting plates 101, three connecting strips 102, three sliding components, and a limiting component. The bottoms of the three clamping blocks 1 are fixedly connected to the tops of the three connecting plates 101. The bottoms of the three connecting plates 101 are respectively fixedly connected to one side of the three sliding components. The three sliding components are respectively disposed inside the three connecting strips 102. Each of the three connecting strips 102 has a sliding groove inside. One side of the three connecting strips 102 is fixedly connected to the inner side of the protective shell 105. The three sliding components are slidably connected in the three sliding grooves. Each of the three sliding components has a moving block at its bottom. The three moving blocks are disposed on the limiting component. The sliding block 103 has a cross-shaped cross section.

[0024] The fixing assembly includes a connecting block 4, a threaded cap 401, a fixing block 402, a limiting plate 403, and a connecting post 404. One side of the limiting plate 403 is fixedly connected to one side of the outer shell 2. The connecting post 404 is located inside the limiting plate 403, and the fixing block 402 is located inside the connecting post 404. The threaded cap 401 is located on the top of the connecting post 404, and the bottom of the fixing block 402 is fixedly connected to the bottom of the inner side of the connecting post 404. The threaded cap 401 is threadedly connected to the connecting post 404. One end of the rotating assembly passes through the center of the limiting plate 403, the connecting post 404, and the threaded cap 401 and is fixedly connected to one side of the connecting block 4. Rotating the connecting block 4 causes the rotating rod 201 and the turntable 106 to rotate. By rotating the threaded cap 401, the fixing block 402 inside the connecting post 404 is pressed, thereby fixing the rotating rod 201.

[0025] The sliding assembly includes three sliding blocks 103, which are respectively disposed in the internal grooves of the three connecting bars 102. The sliding blocks 103 are movably connected in the grooves. The bottom moving block of the sliding plate 103 and the sliding blocks 103 move in the internal grooves of the connecting bars 102 by the spiral ring 104 on the surface of the turntable 106.

[0026] The limiting component includes a spiral ring 104, which is disposed on the turntable 106;

[0027] The rotating assembly includes a turntable 106 and a rotating rod 201. The turntable 106 is located inside the protective shell 105. A spiral ring 104 is provided on one side of the turntable 106. The other side of the turntable 106 is fixedly connected to one end of the rotating rod 201. The other end of the rotating rod 201 passes through the interior of the outer shell 2, the center of the limiting plate 403 and the connecting post 404, and is fixedly connected to the center of one side of the connecting block 4. Rotating the connecting block 4 drives the rotating rod 201 and the turntable 106 to rotate.

[0028] The working principle provided by this utility model is as follows: Rotating the connecting block 4 drives the rotating rod 201 and the turntable 106 to rotate. The spiral ring 104 on the surface of the turntable 106 moves the bottom moving block of the sliding plate 103 and the sliding block 103 in the sliding groove inside the connecting strip 102, thereby driving the connecting plate 101 and the clamping block 1 to clamp. By rotating the threaded cap 401, the fixing block 402 inside the connecting column 404 is squeezed, thereby fixing the rotating rod 201 and fixing the clamping block 1.

[0029] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A root canal broken needle pickup device, characterized in that, It includes a protective shell (105) and an outer shell (2). The bottom of the protective shell (105) is fixedly connected to the top of the outer shell (2). A clamping component is provided on one side of the protective shell (105). A limiting component is provided inside the protective shell (105). A rotating component is provided inside the outer shell (2). A fixing component is provided at the bottom of the outer shell (2). One end of the rotating component is fixedly connected to one side of the clamping component. The other end of the rotating component passes through the center of the outer shell (2) and the fixing component. The clamping assembly includes three clamping blocks (1), three connecting plates (101), three connecting strips (102), three sliding components, and a limiting component. The bottom of the three clamping blocks (1) is fixedly connected to the top of the three connecting plates (101). The bottom of the three connecting plates (101) is fixedly connected to one side of the three sliding components. The three sliding components are respectively disposed inside the three connecting strips (102). Each of the three connecting strips (102) has a sliding groove inside. One side of the three connecting strips (102) is fixedly connected to the inside of the protective shell (105). The three sliding components are slidably connected in the three sliding grooves. Each of the three sliding components has a moving block at its bottom. The three moving blocks are disposed on the limiting component.

2. The root canal broken needle pickup device according to claim 1, characterized in that, The fixing component includes a connecting block (4), a threaded cap (401), a fixing block (402), a limiting plate (403), and a connecting column (404). One side of the limiting plate (403) is fixedly connected to one side of the outer shell (2). The limiting plate (403) has a connecting column (404) inside. The connecting column (404) has a fixing block (402) inside. The top of the connecting column (404) has a threaded cap (401). The bottom of the fixing block (402) is fixedly connected to the bottom of the inner side of the connecting column (404). The threaded cap (401) is threadedly connected to the connecting column (404). One end of the rotating component passes through the center of the limiting plate (403), the connecting column (404), and the threaded cap (401) and is fixedly connected to one side of the connecting block (4).

3. The root canal broken needle pickup device according to claim 1, characterized in that, The sliding assembly includes three sliding blocks (103), which are respectively disposed in the internal grooves of the three connecting strips (102), and the sliding blocks (103) are movably connected in the grooves.

4. The root canal broken needle pickup device according to claim 1, characterized in that, The limiting component includes a spiral ring (104) which is disposed on a turntable (106).

5. A root canal broken needle pickup device according to claim 2, characterized in that, The rotating assembly includes a turntable (106) and a rotating rod (201). The turntable (106) is located inside the protective shell (105). A spiral ring (104) is provided on one side of the turntable (106). The other side of the turntable (106) is fixedly connected to one end of the rotating rod (201). The other end of the rotating rod (201) passes through the interior of the outer shell (2), the center of the limiting plate (403) and the connecting column (404), and is fixedly connected to the center of one side of the connecting block (4).

6. The root canal broken needle pickup device according to claim 3, characterized in that, The sliding block (103) has a cross-shaped cross section.

Citation Information

Patent Citations

  • Root canal broken needle picking device

    CN214342688U