Root canal bender head with conductive structure
By using conductive adjustment components and elastic core clamps in the dental root canal bending head, the problem of large measurement errors in the dental root canal bending head is solved, ensuring measurement accuracy and structural compactness, and simplifying the use process.
Patent Information
- Application Number
- CN202420070084.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-11
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-11
AI Technical Summary
When the existing dental root canal bending head measures the depth of the root canal, the inaccurate electrical signal transmission leads to large measurement errors, affecting the treatment effect and increasing the treatment time.
A root canal bending head with a conductive structure is designed, and the coaxial adjustment between the movement assembly and the main housing is adopted with a compact overall structure. The conductive adjustment assembly ensures the conductive communication between the movement assembly and the transmission assembly, and ensures the root canal file. The central axis is in a vertical position, and the elastic core clamp and bearing column are used to cooperate. The conductive sheet and conductive copper sleeve are designed to automatically correct the swing of the bearing column to improve concentricity and conductivity stability.
The accuracy of dental root canal measurement is achieved, measurement errors are reduced, structural design is simplified, and silicone sleeves are not required to isolate, improving treatment efficiency and maintenance convenience.
Smart Images
Figure CN222150177U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dental root canal bender, and mainly relates to a root canal bender head with a conductive structure. Background Art
[0002] Currently, in dental root canal treatment, a root canal curved handpiece is needed to measure the root canal depth. It can be used for static root canal measurement or for measuring the root canal depth while expanding the hole. The root canal curved handpiece can be used with a file needle or a detection needle for measurement. To perform root canal measurement, the electrical signal of the handpiece must be transmitted to the control host.
[0003] The existing curved handpiece for root canal treatment transmits electrical signals through the handpiece, the transmission part, and the conductive spring. The outside of the handpiece needs to be covered with a silicone sleeve to isolate it from any external conductive body. Because when the handpiece is connected to the outside, the measurement depth error is large, which affects the judgment during treatment and will have a certain impact on the patient in the later stage, increasing the treatment time and later maintenance time. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a root canal bending machine head with a conductive structure, which has a compact overall structure, can adjust the coaxiality of the movement component and the main housing, ensure that the central axis of the movement component and the root canal file is on a vertical line, and ensure the accuracy of dental root canal measurement.
[0005] The technical problem to be solved by the utility model can be achieved by adopting the following technical solutions:
[0006] A root canal bender with a conductive structure, characterized by comprising:
[0007] The main housing is arranged horizontally as a whole;
[0008] A core assembly for mounting an endodontic file, the core assembly being longitudinally disposed inside the narrower end of the main housing;
[0009] A transmission assembly, disposed transversely inside the main housing;
[0010] The conductive adjustment component is used to adjust the coaxiality between the movement component and the main housing, and the conductive adjustment component conductively connects the movement component and the transmission component.
[0011] In a preferred embodiment of the utility model, the core assembly includes an elastic core clamp, a bearing column, and a bearing which are coaxially sleeved in sequence from the inside to the outside, and the top of the root canal file is installed inside the elastic core clamp and the bearing column from bottom to top.
[0012] In a preferred embodiment of the utility model, the transmission assembly includes a transmission main shaft, a positioning sleeve, and steel balls. The positioning sleeve is clamped between the transmission main shaft and the main housing, and the steel balls are installed inside the transmission main shaft and the positioning sleeve.
[0013] In a preferred embodiment of the utility model, the conductive adjustment component includes at least one pair of conductive plates, and at least two installation slots are horizontally arranged on the outer ring surface of the transmission main shaft, and the two installation slots are respectively located in two different horizontal planes; one end of at least one pair of conductive plates is respectively horizontally installed in at least two of the installation slots.
[0014] In a preferred embodiment of the utility model, the conductive adjustment component also includes a conductive copper sleeve, which is sleeved on the outer ring surface of the bearing column, and the other end of at least one pair of conductive sheets is placed on the outer ring surface of the conductive copper sleeve.
[0015] In a preferred embodiment of the utility model, the elastic core clamp is elastic, and the bearing column and the elastic core clamp are assembled by interference fit; there is a gap between the upper part of the outer ring surface of the elastic core clamp and the middle part of the inner ring surface of the bearing column.
[0016] In a preferred embodiment of the utility model, a pair of bearings are provided, which are respectively sleeved on the upper and lower parts of the outer ring surface of the bearing column; a connecting ring is sleeved on the outer ring surface of the upper bearing, and the outer ring surface of the connecting ring is threadedly connected to the inner ring surface of the main housing; and a head cover is installed on the top inner wall of the connecting ring.
[0017] The beneficial effects of the utility model are: a root canal bending machine head with a conductive structure, a movement component and a transmission component in a main housing, which are conductively connected via a conductive adjustment component; the overall structure is compact, and the conductive adjustment component can be used for conductive connection and also for adjusting the coaxiality of the movement component and the main housing; ensuring that the central axis of the movement component and the root canal file is on a vertical line, thereby ensuring the accuracy of dental root canal measurement.
[0018] The mounting slots of a pair of conductive sheets are located at two different horizontal planes. When the pair of conductive sheets clamp the outer periphery of the conductive copper sleeve, the bearing column is automatically corrected by the elasticity of the conductive sheets themselves during rotation; the concentricity is high and the hole diameter is accurate during the cutting and expanding process. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 The utility model is a partially cutaway structural schematic diagram of a root canal bending machine head with a conductive structure.
[0020] Figure 2 The utility model is a cross-sectional structural diagram of a root canal bending machine head with a conductive structure.
[0021] Figure 3 The utility model is a schematic diagram of the internal structure of the root canal bending handpiece.
[0022] Figure 4 It is an exploded view of the internal structure of the root canal bending handpiece of the utility model.
[0023] Figure Number:
[0024] Main casing 10; connecting ring 11, head cover 12; file needle 13.
[0025] Movement assembly 20; elastic core clip 21, bearing column 22, bearing 23.
[0026] Transmission assembly 30; transmission main shaft 31, mounting slot 32; positioning sleeve 33, conductive mounting slot 34, steel ball 35.
[0027] Conductive adjustment component 40; conductive sheet 41, conductive copper sleeve 42. DETAILED DESCRIPTION
[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.
[0029] See also Figure 1 to Figure 2 , shown in the figure is a root canal bending handpiece with a conductive structure, including: a main housing 10, which is arranged horizontally as a whole; a movement assembly 20, which is used to install the root canal file, and the movement assembly 20 is longitudinally arranged inside the narrower end of the main housing 10; a transmission assembly 30, which is arranged horizontally inside the main housing 10; a conductive adjustment assembly 40, which is used to adjust the coaxiality of the movement assembly 20 and the main housing 10, and the conductive adjustment assembly 40 conductively connects the movement assembly 20 and the transmission assembly 30. The movement assembly 20 and the transmission assembly 30 in the main housing 10 of the utility model are conductively connected through the conductive adjustment assembly 40; the overall structure is compact, and the conductive adjustment assembly 40 can be used for conductive connection and can also be used to adjust the coaxiality of the movement assembly 20 and the main housing 10, ensuring that the central axis of the movement assembly 20 and the root canal file is on a vertical line, thereby ensuring the accuracy of dental root canal measurement. The outside of the handpiece does not need to be covered with a silicone sleeve to isolate the outside, and the structure is simple and compact.
[0030] The movement assembly 20 includes an elastic core clip 21, a bearing post 22, and a bearing 23 that are coaxially sleeved from the inside out in sequence. The top of the root canal file is installed inside the elastic core clip and the bearing post 22 from bottom to top. Specifically, the elastic core clip 21 has elasticity, and an interference fit is used for assembly between the bearing post 22 and the elastic core clip 21, making the transmission connection tighter. The height of the bearing post 22 is greater than about half of the height of the highly elastic core clip 21, and the longitudinal section of the bearing post 22 is petal-shaped; there is a gap between the upper part of the outer ring surface of the elastic core clip 21 and the middle part of the inner ring surface of the bearing post 22, providing space for coaxiality adjustment of the bearing post 22.
[0031] There are a pair of bearings 23, which are respectively sleeved on the upper and lower parts of the outer ring surface of the bearing post 22; the pair of bearings 23 are ball bearings 23. A connecting ring 11 is sleeved on the outer ring surface of the upper bearing 23, and a threaded connection is used between the outer ring surface of the connecting ring 11 and the inner ring surface of the main housing 10, making the connection more stable; a machine head cover 12 is installed on the inner wall of the top of the connecting ring 11.
[0032] Combined Figure 3 and Figure 4 , the transmission assembly 30 includes a transmission main shaft 31, a positioning sleeve 33, and steel balls 35. The positioning sleeve 33 is clamped between the transmission main shaft 31 and the main housing 10, and the steel balls 35 are installed inside the transmission main shaft 31 and the positioning sleeve 33. Specifically, the longitudinal section of the positioning sleeve 33 is π-shaped, and a U-shaped conductive installation groove 34 is provided at the bottom of the outer wall of the positioning sleeve 33 for installing a conductive sheet 41. A number of rectangular splines are circumferentially arrayed at the right end of the outer ring surface of the transmission main shaft 31, and bolts are horizontally arranged at the intervals of the rectangular splines and then fixed to the main housing 10. An installation hole is provided at the right end of the transmission main shaft 31 for installing other components of the root canal bender.
[0033] The conductive adjustment assembly 40 includes at least a pair of conductive sheets 41. At least two installation slots 32 are horizontally provided on the outer ring surface of the transmission main shaft 31, and the two installation slots 32 are respectively in two different horizontal planes; one ends of the at least a pair of conductive sheets 41 are horizontally installed in the at least two installation slots 32 respectively, which is convenient for replacing the conductive sheets and has high conductive stability.
[0034] The conductive adjustment assembly 40 further includes a conductive copper sleeve 42. The conductive copper sleeve 42 is sleeved on the outer ring surface of the bearing post 22, and the other ends of the at least a pair of conductive sheets 41 are placed on the outer ring surface of the conductive copper sleeve 42.
[0035] Specifically, the cross section of the left part of the conductive sheet 41 is S-shaped; the copper material of the conductive copper sleeve 42 can improve the conductivity sensitivity. The two installation slots 32 are located at asymmetric positions on the transmission main shaft 31. The function of the asymmetric position is: when a pair of conductive sheets 41 clamp the outer periphery of the conductive copper sleeve 42, the bearing column 22 can be gently straightened by relying on the elasticity of the conductive sheets 41 during rotation; because the bearing column 22 will be affected by external resistance during rotational cutting and will have a slight swing; a pair of conductive sheets 41 are placed up and down respectively, and the bearing column 22 can be automatically corrected due to the elasticity of the conductive sheets 41; the concentricity is high, and the hole diameter is accurate during the cutting and expanding process.
[0036] The basic installation principle of this utility model is:
[0037] First, the bearing column 22 is interference fit with the elastic core clip 21, and the file needle 13 is clamped on the inner side of the elastic core clip 21; the outer surface of the bearing column 22 is sleeved with a press-fit conductive copper sleeve 42, and the upper and lower ends of the bearing column 22 are respectively provided with ball bearings 23; the above parts assembled together are called a movement, and the movement is installed into the movement part of the main housing 10.
[0038] Then fix the conductive sheet 41 on the mounting groove 32 on the outer ring surface of the positioning sleeve 33, and the mounting groove 32 is used to fix the conductive sheet 41 up and down; put the steel ball 35 in the corresponding position of the transmission main shaft 31, and align the positioning sleeve 33 with the conductive sheet 41 fixed to the position of the steel ball 35 and fix it on the transmission main shaft 31 in turn; the above parts are assembled together and are called a transmission group, which is assembled into the transmission part of the main housing 10.
[0039] After being installed in place, the conductive sheet 41 will clamp the conductive copper sleeve 42, so that the core part and the transmission part are connected, and the assembled root canal bending handpiece can be used for root canal measurement.
[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A root canal bending handpiece with a conductive structure, characterized in that: include: The main housing is arranged horizontally as a whole; A core assembly for mounting an endodontic file, the core assembly being longitudinally disposed inside the narrower end of the main housing; A transmission assembly, disposed transversely inside the main housing; A conductive adjustment component, used for adjusting the coaxiality between the movement component and the main housing, wherein the conductive adjustment component conductively connects the movement component and the transmission component; The core assembly comprises an elastic core clamp, a bearing column, and a bearing which are coaxially sleeved in sequence from the inside to the outside, and the top of the root canal file is installed inside the elastic core clamp and the bearing column from bottom to top; The transmission assembly comprises a transmission main shaft, a positioning sleeve and steel balls. The positioning sleeve is clamped between the transmission main shaft and the main housing, and the steel balls are installed inside the transmission main shaft and the positioning sleeve.
2. A root canal bender with a conductive structure as claimed in claim 1, characterized in that: The conductive adjustment component includes at least one pair of conductive plates, and at least two installation slots are horizontally arranged on the outer ring surface of the transmission main shaft, and the two installation slots are respectively located in two different horizontal planes; one end of at least one pair of conductive plates is horizontally installed in at least two of the installation slots.
3. The root canal bender with a conductive structure as claimed in claim 1, characterized in that: The conductive adjustment component also includes a conductive copper sleeve, which is sleeved on the outer ring surface of the bearing column, and the other end of at least one pair of conductive sheets is placed on the outer ring surface of the conductive copper sleeve.
4. The root canal bender with a conductive structure as claimed in claim 1, characterized in that: The elastic core clip is elastic, and the bearing column and the elastic core clip are assembled by interference fit; there is a gap between the upper part of the outer ring surface of the elastic core clip and the middle part of the inner ring surface of the bearing column.
5. The root canal bender with a conductive structure as claimed in claim 4, characterized in that: The bearing is provided in a pair, which are respectively sleeved on the upper and lower parts of the outer ring surface of the bearing column; a connecting ring is sleeved on the outer ring surface of the upper bearing, and the outer ring surface of the connecting ring is threadedly connected to the inner ring surface of the main housing; an organic head cover is installed on the top inner wall of the connecting ring.