CN210009147U - Interchangeable root canal file holder - Google Patents

Abstract

An interchangeable root canal file holder for tooth filling includes a root canal file assembly, the root canal file assembly is connected to a root canal file handle, and the root canal file assembly is rotatably connected to the root canal file handle. The utility model reduces the operation space required by the operator, and solves the problem caused by the contradiction between the narrow oral cavity space and the relatively huge operation space required by the operator in the prior art. The utility model adopts the technical feature that the root canal file assembly and the root canal file handle are rotatably connected, which reduces the operating space required by the operator. , or for the exploration and preparation of the molar mesial root canal, just pull the root canal file component, you can complete the direction adjustment of the interchangeable root canal file holder, and when pulling the root canal file, the long holding The root canal file handle does not follow, thus reducing the operating space required by the operator, so that the space in the oral cavity can already satisfy the operator for unobstructed root canal exploration and preparation operations.

Description

Interchangeable root canal file holder

technical field

The utility model relates to a medical appliance, in particular to an interchangeable root canal file holder as a root canal treatment tool.

Background technique

In the initial stage of root canal preparation, dentists often need to use 8#, 10# or 15# stainless steel hand files to explore the root canal orifice and initially establish root canal access. However, for the premolars and molars located at the back of the mouth, it is difficult for the operator to explore the root canal orifice with the help of direct vision or oral mirror due to the limitation of the patient's mouth opening and the obstruction of the operator's fingers. Surgeons often can only use stainless steel hand files to "blindly" explore the root canal orifice and prepare root canals by relying on their own experience such as hand feel and knowledge of the anatomical shape of the root canal system.

The DG16 root canal probe used clinically has a single model, which can only be used to explore the root canal orifice under direct vision or oral microscope observation, but cannot effectively perform root canal patency and root canal preparation.

The working tip of the micro reamer is designed for K-file or H-file and is fixed to its shank to make it a whole. However, the tip of the micro reamer is sharp and thin, and it is easily damaged and deformed or damaged. In addition, the working end of the micro reamer has a single angle, which is only convenient for the exploration and preparation of the distal root canal of the molar, but for the mesial root of the molar. The exploration and preparation of the canal is extremely inconvenient. Referring to Figure 3, since the root canal file handle is fixedly connected to the hand root canal file, the root canal file handle rotates and changes the angle with the hand root canal file. (equivalent to the center of rotation) the operating angle of the farther root canal file handle will multiply and change, resulting in a large operating space required by the operator (from the display of the left and right parts in Figure 3, the angle changes It is very large and requires a relatively large operating space to complete), and the human oral cavity is small and cannot provide the large space required for the use of micro-reamers. In this way, the exploration of the mesial root canal of molars can only rely on the surgeon. The feeling that enables exploration and preparation.

Utility model content

The utility model provides an interchangeable root canal file holder which is convenient for the operator to operate, and can especially reduce the operation space.

The utility model adopts the following technical solutions:

An interchangeable root canal file holder for root canal treatment, comprising a root canal file assembly, the root canal file assembly is connected to a root canal file handle, and the root canal file assembly is rotatably connected to the root canal file handle .

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model reduces the operation space required by the operator, and solves the problem caused by the contradiction between the narrow oral space and the relatively huge operation space required by the operator in the prior art. The utility model adopts the technical feature that the root canal file assembly and the root canal file handle are rotatably connected, which reduces the operating space required by the operator. , or for the exploration and preparation of the molar mesial root canal, just pull the root canal file component, you can complete the direction adjustment of the interchangeable root canal file holder, and when you pull the root canal file, the long holding The root canal file handle does not follow, thereby reducing the operating space required by the operator, so that the space in the oral cavity can already satisfy the operator for unobstructed root canal exploration and preparation operations. In addition, it is precisely because the utility model reduces the operating space required by the operator, so that the operator can complete the exploration of the root canal orifice only under direct vision or mouth mirror observation without relying on the operator's own experience such as hand feeling. , root canal patency, etc.

(2) The working head A of the root canal file further improves the utility model. On the one hand, the technical measures such as the file holding cavity of the root canal file working head A are enough to firmly fix the hand root canal file on the root canal file working head, so as to realize the basic function of the interchangeable root canal file holder. On the other hand, for different patients, the utility model only needs to replace the hand root canal file, that is, only the partial parts are replaced, and it is not necessary to discard the entire interchangeable root canal file holding device as in the prior art, Therefore, the cost of the utility model is relatively low.

(3) The present utility model adopts the rotary connection between the root canal file working head and the root canal file handle. Realize the rotational connection between the root canal file assembly and the root canal file handle, so that the operator can adjust the angle between the hand root canal file and the root canal file handle according to the specific conditions of different patients' oral cavity, so as to ensure that the operator can In a narrow mouth, the exploration and preparation of the molar mesial root canal can be completed only by direct vision or mouth mirror observation without feeling, that is, when the exploration and preparation of the molar mesial root canal is eliminated, the operator feels dependency.

The advantages of the present utility model are further elaborated below:

■The working head of the interchangeable root canal file holder is small, which has little impact on the operator's visual field. By installing the hand stainless steel file into the interchangeable root canal file holder, the operator can not only explore the root canal orifice, but also perform root canal preparation under direct vision or oral microscope observation.

a) The rod of the root canal file is connected with the handle of the root canal file through the tightening knob, and the working head of the root canal file and the handle of the root canal file can be at different angles by adjusting the tightening knob. Therefore, according to the needs of oral clinical treatment, the operator can adjust the angle of the working head of the root canal file according to the different root canals of the treated teeth, which is convenient for clinical operation; it overcomes the shortcoming of the single angle of the working end of the micro reamer. .

b) The root canals of maxillary molars are often divided into mesiobuccal root canals, mesiobuccal second root canals, distal buccal root canals and palatal root canals; the root canals of mandibular molars are often divided into mesiobuccal root canals Lateral root canal, mesial lingual root canal, distal buccal root canal and distal lingual root canal. Compared with the larger root canals such as the distal and palatal canals, the mesial root canals are smaller and more curved, often surrounded by annular dentin around the orifice of the root canal, which is difficult to detect and is a difficult point in molar root canal treatment. ; Compared with DG16 probe and micro reamer, the utility model can install 6#, 8# or 10# and other more sharp stainless steel hand files, under the assistance of microscope or mouth mirror, it is easy to detect and into the root canal.

c) The working section of the micro reamer is generally at an obtuse angle of 120 degrees. This design is especially suitable for the use of the micro reamer for the exploration of the distal root canal system and the palatal root canal; but for the exploration of the mesial root canal But extremely disadvantageous. During the exploration of the mesial root canal, the patient has to open the mouth as wide as possible so that the working section of the micro reamer can detect the orifice of the mesial root canal. Long-term large mouth opening can easily cause fatigue, temporomandibular joint disorders, and even iatrogenic injuries such as temporomandibular joint dislocation.

d) Some patients are limited by the mouth opening. Although the micro reamer can detect the root canal orifice, the root canal preparation cannot be performed downward due to the obstruction of the dentin of the root canal orifice. Moreover, this kind of exploration is easy to form a step in the mesial root canal orifice of the affected tooth, thereby increasing the difficulty of root canal preparation; it can also cause the breakage of the micro reamer and the failure of root canal exploration.

牙的阻挡，采用微型扩孔器并不能达到探查根管的目的。e) A small number of patients with small mouth opening, due to

To block the teeth, the use of micro reamer cannot achieve the purpose of exploring the root canal.

f) Use a root canal file to prepare the distal root canal and the palatal root canal. The working section can be adjusted to an obtuse angle of 120 degrees, and the root canal orifice can be explored and root canal preparation like a micro reamer; For the mesial root canal, according to the patient's oral conditions, the working section can be adjusted to an acute angle of about 60 degrees, so that the direction of the root canal file carried is consistent with the direction of the mesial root canal of the affected tooth, which is beneficial for clinical operations. And it is not easy to form complications such as steps, perforation, and instrument damage.

■The length and model of the hand stainless steel file are various, but the design and shape of the handle end are almost the same. Therefore, various types of hand-use stainless steel files can be placed in the file holding groove of the root canal file and fixed by rubber bushings and fixing nuts. The rubber bushing can effectively adjust the gap between the file handle and the fixing nut and make it more stable. Therefore, different types and types of hand stainless steel files can be installed in the interchangeable root canal file holder, which solves the problem of the small number of working ends of the micro reamer.

■The working end of the micro reamer is sharp and thin, which is easy to be damaged during root canal exploration and root canal preparation, and the working end of the micro reamer is integrated with its handle and cannot be disassembled. Once the working end is damaged, it must be Discarding the entire micro reamer is costly. The working end of 6#, 8#, 10# and 15# hand stainless steel files is small and sharp, and it is also easy to be damaged during root canal exploration and root canal preparation. However, it is inexpensive and easy to install into interchangeable root canal file holders. Therefore, if the tip of the hand stainless steel file is found to be deformed or damaged, the hand stainless steel file can be replaced in time, and the interchangeable root canal file holder can continue to be used, which can effectively reduce the use cost.

■Due to the operator's inattention (rough branches and large leaves) and the fingers not clenching the handle end of the stainless steel file, the instrument may fall into the respiratory tract or digestive tract, resulting in serious intraoperative complications. The use of interchangeable root canal file holder, the stainless steel hand file can be conveniently and firmly fixed in the file holding groove, which can effectively avoid the risk of the hand root canal file being sucked into the respiratory tract and gastrointestinal tract by mistake. .

■For some patients whose mouth is too small, the operator does not have enough operating space, and it is difficult for the operator to carry out effective root canal preparation with a stainless steel file. Avoid the surgeon's fingers holding the file directly into the oral cavity, so as to maximize the operating space of the surgeon. Therefore, an interchangeable root canal file holder and a stainless steel file can be used for root canal preparation, which is suitable for root canal therapy for patients with small mouth opening.

■For some patients with obvious foreign body sensation in the oral cavity, when the surgeon enters the oral cavity with a stainless steel file for root canal treatment, the foreign body sensation is obvious, and it is even difficult to complete the root canal treatment operation. The design of the interchangeable root canal file holder with long handle and small working head can prevent the operator's fingers from holding the file directly into the oral cavity and maximize the operator's operating space. Therefore, for some patients with particularly obvious oral foreign body sensation, an interchangeable root canal file holder can also be used to hold a stainless steel file for root canal preparation.

■The working head of the interchangeable root canal file holder is small, which has little impact on the operator's field of vision, and is more convenient to operate under the root canal microscope.

Description of drawings

Figure 1 is a schematic diagram of the assembly process. In the figure, A represents the working head of the root canal file, B represents the hand root canal file, C represents the rubber bushing, D represents the tightening nut, and E represents the installation of the hand root canal file to the Put the root canal file in the working head and fix it, F means tightening bolts, G means the root canal file handle, H means insert the root canal file working head into the clamping groove at the end of the root canal file handle, I means tighten The knob fixes the root canal file working head and its handle.

Figure 2 is a schematic structural diagram of a root canal file working head. In the figure, A1 represents the file holding cavity, A2 represents the root canal file body, and A3 represents the through hole.

Figure 3 is a schematic structural diagram of a root canal file handle. In the figure, G2 represents the axial clamping groove, G3 represents the screw hole, and G1 represents the body of the root canal file handle.

Fig. 4 is a schematic diagram of the rotating working range of the working head of the interchangeable root canal file holder.

Figure 5 is a schematic diagram of the operation of using the prior art to explore the root canal. It can be seen that the angle of the handle varies greatly. The left part of the figure is a schematic diagram of the operation of the distal and palatal root canal exploration, and the left part of the figure is the mesial Schematic diagram of root canal exploration operation.

Fig. 6 is a schematic view of the operation of using the present invention to explore the root canal. It can be seen that the angle of the handle has changed very little and has hardly changed, so that the operator can complete all operations in a small space. The upper part of the figure is far away Schematic diagram of root canal exploration in the middle and palatal sides. The lower part of the figure is a schematic diagram of the operation of mesial root canal exploration.

Detailed ways

An interchangeable root canal file holder for tooth filling, comprising a root canal file assembly, the root canal file assembly is connected to a root canal file handle G, and the root canal file assembly is rotatably connected to the root canal file handle G . In this embodiment,

The root canal file assembly includes a manual root canal file B and a root canal file working head A, the root canal file working head A includes a root canal file body A2, and one end of the root canal file body A2 is provided with a file-holding file. The cavity A1 is provided with a through hole A3 at the other end of the root canal file body A2. The handle of the hand root canal file B is embedded in the file-holding cavity A1 and is threadedly connected with the file-holding cavity A1. A fastening nut D fixed. A rubber bushing C is provided between the handle of the hand root canal file B and the tightening nut D.

The root canal file handle G includes a root canal file handle body G1, and one end of the root canal file handle body G1 is provided with an axial clamping groove G2 and a screw hole G3 for clamping the root canal file working head A, In addition, the screw hole G3 passes through the axial clamping groove G2, the other end of the root canal file working head A is inserted into the axial clamping groove G2, and is screwed into the screw hole G3 for fastening bolts F, and the tightening bolts F pass through the through holes A3 on the root canal file body A2, and the root canal file body A2 is rotatably connected and fastened to the root canal file handle body G1 through the tightening bolts F , so as to realize the rotational connection between the root canal file assembly and the root canal file handle G.

Claims (4)

1. The utility model provides an interchangeable formula root canal file holds file ware, includes the root canal file subassembly, its characterized in that, the root canal file subassembly is connected in holding root canal file handle (G) to the root canal file subassembly with hold root canal file handle (G) and rotate and be connected.

2. The interchangeable root canal file holder according to claim 1, wherein the root canal file assembly comprises a hand root canal file (B) and a root canal file working head (a), the root canal file working head (a) comprises a root canal file body (a2), a root canal file cavity (a1) is provided at one end of the root canal file body (a2), a through hole (A3) is provided at the other end of the root canal file body (a2), the handle of the hand root canal file (B) is embedded in the root canal file cavity (a1) and fixed by a fastening nut (D) in threaded connection with the root canal file cavity (a 1).

3. The interchangeable endodontic file holder of claim 2 wherein a rubber gasket (C) is provided between the shank of the hand file (B) and the fastening nut (D).

4. The interchangeable root canal file holder according to claim 2, wherein the root canal file handle (G) comprises a root canal file handle body (G1), an axial holding groove (G2) and a screw hole (G3) for holding the root canal file working head (a) are provided at one end of the root canal file handle body (G1), and the screw hole (G3) penetrates the axial holding groove (G2), the other end of the root canal file working head (a) is embedded in the axial holding groove (G2), a fastening bolt (F) is screwed in the screw hole (G3), and the fastening bolt (F) passes through a through hole (A3) on the root canal file body (a2), the root canal file body (a2) is rotatably connected and fastened to the root canal file handle body (G1) by the fastening bolt (F), so that the file assembly is rotatably connected to the root canal file handle (G).

Images