Nickel-titanium instrument stop mark with limiting device for oral cavity machine

Abstract

The utility model relates to the technical field of nickel-titanium instruments, and provides a nickel-titanium instrument stop mark with a limiting device for an oral cavity machine. The limiting sleeve is arranged on the stop mark body and provided with a through hole, and a nickel-titanium instrument can penetrate through the through hole. A sliding groove is formed in the side wall of the through hole of the limiting piece, the limiting piece is movably arranged in the sliding groove, the moving direction of the limiting piece is perpendicular to the moving direction of the stop mark body, and the limiting piece abuts against the side wall of the nickel-titanium instrument or does not abut against the side wall of the nickel-titanium instrument after moving. By means of the technical scheme, the problems that in the prior art, an arresting mark is prone to displacement, and use of instruments is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nickel titanium instrument technical field, specifically, relate to a kind of nickel titanium instrument stop mark with limiting device for oral machine. BACKGROUND

[0002] Many nickel titanium instruments for oral machine have stop marks, which are also known as stop pieces, positioning marks, positioning rings, positioning pads, positioning washers, stop mark rings and depth setting pads. They are mainly used to control the depth of the instrument entering the root canal. During root canal treatment, accurately controlling the depth of the instrument in the root canal is crucial. If the instrument exceeds the root apex, it may push the infected material in the root canal out of the root apex, causing inflammation of the periradicular tissue, resulting in postoperative complications such as pain and swelling, and reducing the success rate of root canal treatment. By observing the position of the stop mark and the dental tissue, the instrument can be accurately stopped at the predetermined working length, ensuring the safety and effectiveness of the treatment.

[0003] However, the material of the stop mark is usually rubber or silicone, which relies on the friction generated by deformation to fix the nickel titanium instrument. The friction is limited. The working mode of the nickel titanium instrument for oral machine is rotary motion. When the stop mark contacts the dental tissue during movement, it may shift and lose the predetermined working length. Therefore, improvement is needed to fix the position of the stop mark and obtain a more stable working length. SUMMARY

[0004] The utility model provides a kind of nickel titanium instrument stop mark with limiting device for oral machine, solve the problem that stop mark is easily displaced in the related art, affect instrument use.

[0005] The technical solution of the utility model is as follows:

[0006] A nickel titanium instrument stop mark with limiting device for oral machine is movably arranged on a nickel titanium instrument, comprising:

[0007] A stop mark main body is movably arranged on the nickel titanium instrument.

[0008] A limiting sleeve is arranged on the stop mark main body and has a through hole for the nickel titanium instrument to pass through.

[0009] A limiting member is movably arranged in a sliding groove on the side wall of the through hole. The movement direction of the limiting member is perpendicular to the movement direction of the stop mark main body. After the limiting member moves, it abuts against or cancels the abutment with the side wall of the nickel titanium instrument.

[0010] As a further technical solution, the limiting member has a friction surface. After the limiting member moves, the friction surface is in contact with or cancels the contact with the side wall of the nickel titanium instrument.

[0011] As a further technical solution, further comprising:

[0012] The elastic member is arranged on the side wall of the through hole and the limiting member, and is used for providing the force for abutting the limiting member against the side wall of the nickel-titanium instrument.

[0013] As a further technical solution, further comprising:

[0014] The stop edge is arranged in the through hole, and is used for abutting against the side wall of the nickel-titanium instrument.

[0015] As a further technical solution, further comprising:

[0016] The connecting member is arranged on the limiting sleeve and the stop mark body.

[0017] As a further technical solution, further comprising:

[0018] The protruding block is arranged on the limiting member and located outside the sliding groove, and is used for abutting or canceling the abutting of the limiting member against the nickel-titanium instrument by pulling or pushing.

[0019] As a further technical solution, the elastic member has a plurality of elastic members.

[0020] As a further technical solution, the limiting member has a through slot, the nickel-titanium instrument passes through the through slot, and the friction surface is located on the side wall of the through slot.

[0021] The working principle and beneficial effects of the utility model are as follows:

[0022] In the utility model, the limiting mechanism, i.e., the limiting sleeve and the limiting member, is arranged on the stop mark body, the limiting sleeve is sleeved on the instrument and connected with the stop mark body, and the limiting member tightly clamps the side wall of the nickel-titanium instrument in the initial state, so that the stop mark body is greatly reduced in accidental displacement when the instrument is used under the action of the static friction force between the limiting member and the nickel-titanium instrument, the stop mark can be more accurately stopped at the corresponding position, and the instrument is more safe and convenient to use.

[0023] When the stop mark body needs to be moved, the limiting member is only moved to be separated from the nickel-titanium instrument, the static friction force disappears, the stop mark body can be easily moved, and the position of the stop mark body on the nickel-titanium instrument can be fixed after the limiting member is reset. DRAWINGS

[0024] The above characteristics, technical features, advantages and implementation manners of the utility model will be further described in the following preferred embodiments in a clear and understandable manner combined with the drawings.

[0025] Fig. 1The structure schematic diagram of the stop mark is installed on the nickel-titanium instrument in the utility model.

[0026] Fig. 2 The structure schematic diagram of the stop mark is installed on the nickel-titanium instrument in the utility model.

[0027] Fig. 3 The structure schematic diagram of the stop mark is installed on the nickel-titanium instrument in the utility model.

[0028] In the figure: 1, nickel-titanium instrument, 2, stop mark main body, 3, limiting sleeve, 4, through hole, 5, limiting piece, 6, sliding slot, 7, friction surface, 8, elastic piece, 9, blocking edge, 10, connecting piece, 11, protruding block, 12, through slot. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the specific implementation of the utility model will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, and other embodiments can be obtained.

[0030] In order to make the drawing simple, only the part related to the utility model is shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0031] In this paper, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] In addition, in the description of the present application, the terms "first", "second" and the like are only used for distinction and description, and cannot be understood as indicating or implying relative importance.

[0033] As Figs. 1-3As shown, a nickel-titanium instrument stop mark with a limiting device for an oral machine is provided, which is movably arranged on a nickel-titanium instrument 1 and comprises: a stop mark body 2 movably arranged on the nickel-titanium instrument 1; a limiting sleeve 3 arranged on the stop mark body 2 and having a through hole 4 through which the nickel-titanium instrument 1 passes; a sliding groove 6 formed on the side wall of the through hole 4, and a limiting piece 5 movably arranged in the sliding groove 6, the moving direction of the limiting piece 5 being perpendicular to the moving direction of the stop mark body 2, and the limiting piece 5 abuts against or is separated from the side wall of the nickel-titanium instrument 1 after moving.

[0034] In the embodiment, in order to solve the problem that the stop mark is easily displaced in the related art and affects the use of the instrument, a limiting mechanism, i.e., the limiting sleeve 3 and the limiting piece 5, is arranged on the stop mark body 2, the limiting sleeve 3 is sleeved on the instrument and connected with the stop mark body 2, and the limiting piece 5 tightly clamps the side wall of the nickel-titanium instrument 1 in the initial state, at this time, the stop mark body 2 can be more stably stopped at the corresponding position under the action of the static friction force between the limiting piece 5 and the nickel-titanium instrument 1, so that the use of the instrument is safer and more convenient.

[0035] When it is needed to move the stop mark body 2, the limiting piece 5 is only needed to be moved to be separated from the nickel-titanium instrument 1, the static friction force disappears, and then the stop mark body 2 can be easily moved to the designated position, and after the limiting piece 5 is reset, the position of the stop mark body 2 on the nickel-titanium instrument can be fixed.

[0036] Further, the limiting piece 5 has a friction surface 7, the friction surface 7 is attached to or separated from the side wall of the nickel-titanium instrument 1 after the limiting piece 5 moves.

[0037] In the embodiment, in order to improve the static friction force between the limiting piece 5 and the nickel-titanium instrument 1 and further stabilize the stop mark body 2, the friction surface 7 is further arranged on the limiting piece 5, and the friction surface 7 can be made of rubber or other materials with high friction.

[0038] Further, the device further comprises: one end of an elastic piece 8 acting on the side wall of the through hole 4 and the other end of the elastic piece 8 acting on the limiting piece 5, for providing the force for abutting the limiting piece 5 against the side wall of the nickel-titanium instrument 1.

[0039] In the embodiment, the elastic piece 8 can be a spring, one end of the spring is fixed on the side wall of the through hole 4 and the other end of the spring is connected to the limiting piece 5, and the spring is used to push or pull the limiting piece 5 to tightly abut against the side wall of the nickel-titanium instrument.

[0040] The elastic piece 8 can continuously provide the force for abutting the limiting piece 5 against the side wall of the nickel-titanium instrument, so as to ensure the stability of the stop mark during use, and the position of the limiting piece 5 does not need to be frequently adjusted manually by a doctor, so that the operation efficiency is improved.

[0041] Further, the device further comprises: a stop edge 9 arranged in the through hole 4, and the stop edge 9 is used to abut against the side wall of the nickel-titanium instrument 1.

[0042] In the embodiment, the stop edge 9 can cooperate with the friction surface 7 to tightly clamp the nickel-titanium instrument, and the stop edge 9 is arranged to further optimize the positioning function of the stop mark, so as to avoid accidental displacement of the stop mark on the nickel-titanium instrument.

[0043] Further, the connecting piece 10 is arranged on the stop mark body 2.

[0044] In the embodiment, the connecting piece 10 can extend the distance between the stop mark body 2 and the limiting sleeve 3, so as to facilitate observation of the position of the stop mark.

[0045] Further, the protruding block 11 is arranged on the limiting piece 5 and located outside the sliding groove 6, and the protruding block 11 is used to pull out or push in the limiting piece 5 to abut against or cancel abutment with the nickel-titanium instrument 1.

[0046] In the embodiment, the protruding block 11 is arranged on the limiting piece 5, and the doctor can push in the protruding block 11 with fingers or tools to drive the limiting piece 5 to move in the sliding groove 6, so as to cancel abutment of the limiting piece 5 with the nickel-titanium instrument, thereby the stop mark can be moved again.

[0047] The design of the protruding block 11 provides a convenient operation point for manual adjustment of the position of the stop mark, and the doctor can easily realize abutment and cancellation of abutment of the limiting piece 5 with the nickel-titanium instrument, so as to improve the operation convenience in the oral treatment process.

[0048] Further, the elastic piece 8 has a plurality of elastic pieces.

[0049] In the embodiment, the arrangement of the plurality of elastic pieces 8 can make the abutment force of the limiting piece 5 with the side wall of the nickel-titanium instrument more uniform and stable, thereby further enhancing the fixing effect of the stop mark and reducing the displacement of the stop mark caused by uneven force.

[0050] Further, the limiting piece 5 has a through groove 12, the nickel-titanium instrument 1 passes through the through groove 12, and the friction surface 7 is located on the side wall of the through groove 12.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A stop gauge for a nickel-titanium instrument for an oral cavity with a limiting device, which is movably arranged on a nickel-titanium instrument (1), characterized in that The application relates to a stop mark body (2) moving on a nickel-titanium instrument (1), a limiting sleeve (3) provided on the stop mark body (2) and having a through hole (4) for the nickel-titanium instrument (1) to pass through, a limiting piece (5) provided in a sliding groove (6) on the side wall of the through hole (4), the moving direction of the limiting piece (5) being perpendicular to the moving direction of the stop mark body (2), and the limiting piece (5) abutting against or not abutting against the side wall of the nickel-titanium instrument (1) after moving. The limiting piece (5) has a friction surface (7) which is attached to or not attached to the side wall of the nickel-titanium instrument (1) after moving. The application further comprises an elastic piece (8) acting on one side wall of the through hole (4) and the other side wall of the limiting piece (5) to provide the force for the abutting of the limiting piece (5) and the side wall of the nickel-titanium instrument (1). The application further comprises a stop edge (9) provided in the through hole (4) and abutting against the side wall of the nickel-titanium instrument (1).

2. The stop marker for a nickel-titanium instrument for an oral engine with a limiting device according to claim 1, characterized in that, The application further comprises a connecting piece (10) for connecting the limiting sleeve (3) to the stop mark body (2).

3. The stopper gauge for nitinol endodontic instruments with a limiting device according to claim 1, characterized in that, The application further comprises a convex block (11) provided on the limiting piece (5) and located outside the sliding groove (6), which is used to abut against or not abut against the limiting piece (5) and the nickel-titanium instrument (1) after being pulled outwards or pushed inwards. The elastic piece (8) has a plurality of elastic pieces.

4. The stopper gauge for a nickel-titanium instrument for an oral machine with a limiting device according to claim 1, wherein The limiting piece (5) has a through slot (12) through which the nickel-titanium instrument (1) passes, and the friction surface (7) is located on the side wall of the through slot (12). ​ 5. The stop marker for a nickel-titanium endodontic instrument with a limiting device according to claim 1, wherein ​ ​ 6. The stop marker for a nickel-titanium endodontic instrument with a limiting device according to claim 1, characterized in that ​ ​ 7. The stop piece for a nickel-titanium instrument for an oral machine with a limiting device according to claim 3, wherein ​ 8. The stop piece for a nickel-titanium instrument for an oral machine with a limiting device according to claim 2, wherein ​

Images