Thermal activation nickel-titanium wire root canal file
By designing a heat-activated nickel-titanium wire root canal file with a handle with multiple structural elements, the problem of hand fatigue caused by long-term use is solved, and better use comfort and operation convenience are achieved.
Patent Information
- Application Number
- CN202420397417.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-01
AI Technical Summary
When heat-activated nickel-titanium wire root canal file, long-term grip of the grip will increase hand fatigue.
A root canal file including a handle, a connecting port, a nickel-titanium wire file head, a slide groove, a control switch, a connecting rod, an insertion column, a curved buckle, a curved groove, a pressing column, and a stainless steel spring are designed. By controlling the movement of the pressing column, the fit between the insertion column and the insertion slot, the overall grip of the handle and the fit of the fingers is achieved, and hand fatigue is relieved.
It effectively relieves hand fatigue during long-term use. Through the design of the handle and the control switch operation, the pressure on the fingers is reduced and the comfort of use is improved.
Smart Images
Figure CN222676483U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to heat-activated nickel-titanium wire root canal files, and specifically relates to a heat-activated nickel-titanium wire root canal file. Background Art
[0002] The heat-activated nickel-titanium wire root canal file is a medical device used for root canal treatment. It is made of heat-activated nickel-titanium alloy, has good elasticity and flexibility, can better adapt to the tortuous shape of the root canal, and can change its shape through heat activation when used to better clean and shape the root canal and improve the treatment effect. This root canal file plays a very important role in root canal treatment and can help doctors better complete the treatment task.
[0003] When heat-activated nickel-titanium wire root canal files are used for a long time, holding the handle tightly for a long time will increase hand fatigue, so the market needs a new device to solve the current problems. Utility Model Content
[0004] The purpose of the utility model is to provide a heat-activated nickel-titanium wire root canal file to solve the problem proposed in the above background technology that when the heat-activated nickel-titanium wire root canal file is used for a long time, holding the handle for a long time will increase hand fatigue, so the market needs a new device to solve the current problem.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat-activated nickel-titanium wire root canal file, comprising a handle, a connection port is installed at the upper end position of the handle, a nickel-titanium wire file head for treatment is installed at the upper end position of the connection port, a slide groove is arranged at the front end position of the handle, a control switch that can move up and down is sleeved at the inner position of the slide groove, the control switch can control a connecting rod fixed at the rear end position to move up and down, a plurality of insertion columns are fixed at the left end position of the connecting rod, an arc-shaped protruding buckle is fixed at the right end position of the connecting rod, an arc-shaped groove is arranged at the inner position of the handle, and the arc-shaped protruding buckle is clamped at the inner position of the arc-shaped groove, a plurality of arc-shaped grooves are distributed at the left end position of the handle, a pressing column is installed at the inner position of the arc-shaped groove, the pressing column can be extended into the inner position of the handle through a stainless steel spring fixed at the inner end surface position, and an insertion groove for connecting with the insertion column is arranged at the inner position of the pressing column.
[0006] Preferably, the nickel-titanium wire file head cleans the dental pulp tissue and bacteria, and the handle controls the nickel-titanium wire file head to clean.
[0007] Preferably, the connection port connects the handle to the nickel-titanium wire file head, and the connection port and the nickel-titanium wire file head are detachable.
[0008] Preferably, the handle can control the nickel-titanium wire file head when it is gripped.
[0009] Preferably, a plurality of arc-shaped grooves are distributed at the left end of the handle, and the shape and structure thereof fit the fingers.
[0010] Preferably, when the handle is gripped tightly, the pressing column can be pressed by fingers, and the pressing column enters the inner position of the handle when pressed.
[0011] Preferably, the pressing column causes the insertion column to enter the inner position of the insertion groove when pressing.
[0012] Preferably, the control switch drives the connecting rod and the insertion column to move downward, and the downward movement of the insertion column makes it impossible for the pressing column to be pressed into the inner position of the handle.
[0013] Compared with the prior art, the utility model provides a heat-activated nickel-titanium wire root canal file, which has the following beneficial effects:
[0014] 1. The device can control the movement of the pressing column through a control switch. When the pressing column moves to the lower end position, the arc-shaped protrusion is snapped into the inner position of the arc-shaped groove, and the insertion column moves to fit with the lower end position of the pressing column, so that the pressing column cannot be pressed into the inner position of the handle. The user can hold the handle as a whole at the inner position. When holding it for a long time, the control switch can be moved up to align the insertion column with the insertion groove. When the pressing column is pressed, the insertion column enters the inner position of the insertion groove, and the pressing column is retracted to the inner position of the handle. The staff can fit their fingers with the arc groove, which can relieve the hand fatigue of the staff during long-term use.
[0015] 2. The martensitic state and austenitic state are two aspects used to describe the hardness of nickel-titanium wire. The martensitic state refers to the state in which the wire is the softest and has the highest degree of bending, while the austenitic state is the hardest state of the wire. These are all states of wire at room temperature. The wire in the martensitic state will undergo obvious changes when heated and transform into the austenitic state, which is called thermal activation. Although the wire in the austenitic state will also undergo similar changes, the degree of change is smaller and almost imperceptible. The wire in the martensitic state is much more elastic than the wire in the austenitic state, that is, it has a strong ability to recover to its initial state after deformation, and is not easy to break. The deformation force generated by the wire in the austenitic state is 42% higher than that of the wire in the martensitic state, but the force released by the wire in the martensitic state is more persistent and stable. The elastic deformation capacity of the two wires is similar, but the wire in the martensitic state can undergo temporary deformation at room temperature and can recover to its initial state in the oral temperature environment, thereby greatly increasing its deformation range. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The utility model is a schematic diagram of the structure of a heat-activated nickel-titanium wire root canal file.
[0017] Figure 2 This is a schematic diagram of the internal structure of a heat-activated nickel-titanium wire root canal file handle of the utility model.
[0018] Figure 3 It is a partially enlarged structural schematic diagram of a heat-activated nickel-titanium wire root canal file of the utility model.
[0019] In the figure: 1. handle; 2. connection port; 3. nickel-titanium wire file head; 4. pressing column; 5. arc groove; 6. slide groove; 7. control switch; 8. insertion groove; 9. insertion column; 10. stainless steel spring; 11. connecting rod; 12. arc groove; 13. arc raised buckle. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0021] The utility model provides Figure 1-3 A heat-activated nickel-titanium wire root canal file is shown, comprising a handle 1, a connection port 2 is installed at the upper end position of the handle 1, a nickel-titanium wire file head 3 for treatment is installed at the upper end position of the connection port 2, a slide groove 6 is arranged at the front end position of the handle 1, a control switch 7 which can be moved up and down is sleeved at the inner position of the slide groove 6, the control switch 7 can control a connecting rod 11 fixed at the rear end position to move up and down, a plurality of insertion columns 9 are fixed at the left end position of the connecting rod 11, an arc-shaped protruding buckle 13 is fixed at the right end position of the connecting rod 11, an arc-shaped groove 12 is arranged at the inner position of the handle 1, and the arc-shaped protruding buckle 13 is clamped at the inner position of the arc-shaped groove 12, a plurality of arc-shaped grooves 5 are distributed at the left end position of the handle 1, a pressing column 4 is installed at the inner position of the arc-shaped groove 5, the pressing column 4 can be extended into the inner position of the handle 1 through a stainless steel spring 10 fixed at the inner end surface position, and an insertion groove 8 for connecting with the insertion column 9 is arranged at the inner position of the pressing column 4.
[0022] The doctor first selects a nickel-titanium wire file head 3 of appropriate size and shape, and then inserts it into the root canal of the tooth. Once the nickel-titanium wire file head 3 is inserted into the root canal, the doctor will use a rotational motion to clean the tissue residues and bacteria in the root canal, and at the same time polish the inner wall of the root canal to be smoother. The nickel-titanium wire file head 3 of the root canal file has elastic memory and super elasticity, which can adapt to the tortuous shape of the root canal. The doctor can shape a more ideal shape in the root canal by rotating and lightly pressing, so as to facilitate subsequent root canal filling and repair. After the root canal file is used, it needs to be fully cleaned and disinfected to ensure that no bacteria will be introduced during the next use.
[0023] like Figure 1 and Figure 2 As shown, the nickel-titanium wire file head 3 cleans the pulp tissue and bacteria, the handle 1 controls the nickel-titanium wire file head 3 to clean, the connection port 2 connects the handle 1 with the nickel-titanium wire file head 3, the connection port 2 and the nickel-titanium wire file head 3 can be disassembled, the handle 1 can control the nickel-titanium wire file head 3 when it is gripped, and a plurality of arc grooves 5 are distributed at the left end of the handle 1, and their shape and structure fit the fingers, and the pressing column 4 can be pressed by the fingers when the handle 1 is gripped, and the pressing column 4 enters the internal position of the handle 1 when pressed, and the pressing column 4 makes the insertion column 9 enter the internal position of the insertion groove 8 when pressed, and the control switch 7 drives the connecting rod 11 and the insertion column 9 to move downward, and the insertion column 9 moves downward so that the pressing column 4 cannot be pressed to enter the internal position of the handle 1.
[0024] The martensitic state and austenitic state are two aspects used to describe the hardness of nickel-titanium wire. The martensitic state refers to the state in which the wire is the softest and has the highest degree of bending, while the austenitic state is the hardest state of the wire. These are all states of wire at room temperature. The wire in the martensitic state will undergo obvious changes when heated and transform into the austenitic state, which is called thermal activation. Although the wire in the austenitic state will also undergo similar changes, the degree of change is smaller and almost imperceptible. The wire in the martensitic state is much more elastic than the wire in the austenitic state, that is, it has a strong ability to recover to its initial state after deformation and is not easy to break. The deformation force generated by the wire in the austenitic state is 42% higher than that of the wire in the martensitic state, but the force released by the wire in the martensitic state is more persistent and stable. The elastic deformation capacity of the two wires is similar, but the wire in the martensitic state can undergo temporary deformation at room temperature and can recover to its initial state in the oral temperature environment, thereby greatly increasing its deformation range.
[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A heat-activated nickel-titanium wire root canal file, characterized in that: The invention comprises a handle (1), wherein a connection port (2) is installed at the upper end of the handle (1), and a nickel-titanium wire file head (3) for treatment is installed at the upper end of the connection port (2), and a slide groove (6) is arranged at the front end of the handle (1), and a control switch (7) which can be moved up and down is sleeved at the inner position of the slide groove (6), and the control switch (7) can control a connecting rod (11) fixed at the rear end to move up and down, and a plurality of insertion columns (9) are fixed at the left end of the connecting rod (11), and a plurality of insertion columns (9) are fixed at the right end of the connecting rod (11). There is an arc-shaped protruding buckle (13), an arc-shaped groove (12) is arranged at the inner position of the handle (1), and the arc-shaped protruding buckle (13) is clamped at the inner position of the arc-shaped groove (12). A plurality of arc-shaped grooves (5) are distributed at the left end of the handle (1), and a pressing column (4) is installed at the inner position of the arc-shaped groove (5). The pressing column (4) can extend into the inner position of the handle (1) through a stainless steel spring (10) fixed at the inner end surface position, and an insertion groove (8) for connecting with an insertion column (9) is arranged at the inner position of the pressing column (4).
2. A heat-activated nickel-titanium wire root canal file according to claim 1, characterized in that: The nickel-titanium wire file head (3) cleans the dental pulp tissue and bacteria, and the handle (1) controls the nickel-titanium wire file head (3) to clean.
3. A heat-activated nickel-titanium wire root canal file according to claim 2, characterized in that: The connection port (2) connects the handle (1) and the nickel-titanium wire file head (3), and the connection port (2) and the nickel-titanium wire file head (3) are detachable.
4. A heat-activated nickel-titanium wire root canal file according to claim 2, characterized in that: The handle (1) can control the nickel-titanium wire file head (3) when it is tightly gripped.
5. A heat-activated nickel-titanium wire root canal file according to claim 4, characterized in that: A plurality of arc-shaped grooves (5) are distributed at the left end of the handle (1), and the shape and structure thereof fit the fingers.
6. A heat-activated nickel-titanium wire root canal file according to claim 4, characterized in that: When the handle (1) is tightly gripped, the pressing column (4) can be pressed by fingers, and the pressing column (4) enters the inner position of the handle (1) when pressed.
7. A heat-activated nickel-titanium wire root canal file according to claim 6, characterized in that: When pressed, the pressing column (4) causes the insertion column (9) to enter the inner position of the insertion groove (8).
8. A heat-activated nickel-titanium wire root canal file according to claim 7, characterized in that: The control switch (7) drives the connecting rod (11) and the insertion column (9) to move downward, and the downward movement of the insertion column (9) makes it impossible for the pressing column (4) to press into the internal position of the handle (1).