Digitized dental pile path preparation bur

Abstract

The utility model discloses a digitized dental stake way preparation bur, which relates to dental appliances and comprises a fixing part, a bur main body is inserted on one side of the fixing part in a sliding manner, a positioning hole is formed in the front side of the fixing part, a threaded groove is formed in the front side of the bur main body, the positioning hole is matched with the threaded groove, and the bur main body is inserted into the positioning hole. A threaded groove is formed in the front side of the fixing part, a plurality of positioning holes are formed in the front side of the fixing part, positioning bolts are movably inserted into the positioning holes, the ends of the positioning bolts are inserted into the threaded groove in a threaded mode, a guide plate is fixedly connected to the fixing part in a sleeving mode, a guide ring is embedded in one side of the guide plate, and the multiple positioning holes are formed in the front side of the fixing part at equal intervals. According to the utility model, the machine needle main body is inserted into the fixing piece in a sliding manner, so that the machine needle main body can be simply limited, then the positioning bolt is inserted into the positioning hole, and the end thread is inserted into the thread groove, so that the machine needle main body can be stably positioned, and the problem that a pile way is prepared to deviate during use is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dental appliances, in particular to a digital dental post channel preparation bur. Background Art

[0002] For front teeth with most of the tooth tissue missing, routine full crown restoration after root canal treatment cannot provide good retention, which will cause the restoration to fall off easily and lead to restoration failure. Therefore, the use of fiber posts and resin cores to provide sufficient retention after root canal treatment is often a necessary work in the early stage of full crown restoration. However, the information about the anatomical structure and direction of the root canal obtained from two-dimensional images is limited. Most doctors can only prepare the post channel based on feel and experience, which sometimes leads to insufficient post channel preparation length, excessive preparation, or even preparation deviation leading to root canal wall perforation. Poor post channel preparation will greatly reduce the service life of the restoration and even reduce the resistance of the tooth tissue, resulting in tooth fracture.

[0003] Combining CBCT data with digital technology, the guide system produced can guide the surgeon to prepare along the long axis of the root canal and determine the preparation length, so that doctors can complete good anterior tooth post preparation, especially for young doctors with relatively insufficient experience. This allows the anterior tooth post preparation to be standardized, which not only reduces the operation time, but also increases the accuracy of the operation and prolongs the life of the post-core crown restoration and the abutment.

[0004] Most of the post channel preparation needles commonly used in clinical practice are commercial needles, most of which cannot guarantee the stability of the needles during use. They only rely on friction to connect the needle body to the tube body. Since the needle needs to rotate at high speed during use, the post channel preparation deviation problem may easily occur if it relies solely on friction. Therefore, we designed a digital dental post channel preparation needle to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a digital dental post channel preparation needle. By sliding the needle body into a fixing part, the needle body can be simply limited. Then, the positioning bolt is inserted into the positioning hole and the end thread is inserted into the thread groove. The needle body can be stably positioned to avoid the problem of post channel preparation deviation during use, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides a digital dental post channel preparation needle, including a fixing part, a needle body is slidably inserted on one side of the fixing part, a positioning hole is opened on the front side of the fixing part, a threaded groove is opened on the front side of the needle body, the positioning hole is adapted to the threaded groove, a positioning bolt is movably inserted in the positioning hole, the end of the positioning bolt is threadedly inserted in the threaded groove, a guide plate is fixedly sleeved on the fixing part, and a guide ring is inlaid on one side of the guide plate.

[0007] Furthermore, there are multiple positioning holes, and the multiple positioning holes are evenly spaced and arranged on the front side of the fixing member. By providing multiple positioning holes and thread grooves, the length of the pile channel can be conveniently set according to different patients, thereby improving the use effect.

[0008] Furthermore, a slider is slidably provided on the front side of the fixing piece, a positioning rod is fixedly installed on one side of the slider, a positioning groove is opened on one side of the positioning bolt, the other end of the positioning rod is slidably inserted in the positioning groove, and a return spring is fixedly installed on one side of the slider, and the other end of the return spring is arranged in the fixing piece. After the positioning bolt is screwed into the threaded groove, the return spring will push the slider away due to its own elastic force and allow the positioning rod to be inserted into the positioning groove, which can avoid the problem of loosening of the positioning bolt when the fixing piece and the needle body rotate at high speed, and can further improve the stability during use. When removing the positioning bolt, the slider can be pulled to slide the positioning rod out of the positioning groove, so that the positioning bolt can be easily removed, thereby improving convenience.

[0009] Furthermore, a mounting groove is provided on the front side of the fixing member, the slider is slidably connected in the mounting groove, and both ends of the return spring are fixedly connected to the slider and the inner wall of the mounting groove respectively, so as to facilitate the sliding of the slider on the fixing member and avoid the problem of motion interference.

[0010] Furthermore, a guide rod is inserted into the slider, and both ends of the guide rod are fixedly installed in the installation groove, which can limit the sliding direction of the slider so that the slider can only slide in the installation groove along the direction set by the guide rod, avoiding the problem of offset.

[0011] Furthermore, a pull block is fixedly installed on the front side of the slider, and the outer surface of the pull block is provided with anti-slip texture, which can better apply force when a person pulls the slider. In addition, providing the anti-slip texture on the pull block can increase the friction between the person's hand and the pull block, thereby helping to solve the problem of slipping when pulling the pull block.

[0012] Compared with the prior art, the beneficial effect of the utility model is that by sliding the needle body into the fixing part, the needle body can be simply limited, and then the positioning bolt is inserted into the positioning hole and the end thread is inserted into the thread groove, so that the needle body can be stably positioned to avoid the problem of pile preparation deviation during use.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting a plurality of positioning holes and threaded grooves, the length of the pile channel can be conveniently opened according to different patients, thereby improving the use effect; after the positioning bolt is screwed into the threaded groove, the reset spring will insert the positioning rod into the positioning groove due to its own elastic force, thereby avoiding the problem of loosening of the positioning bolt when the fixing part and the needle body rotate at high speed, thereby further improving the stability during use; when removing the positioning bolt, by pulling the pull block, the pull block can drive the positioning rod to slide out of the positioning groove, thereby conveniently removing the positioning bolt, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall external three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the exterior of the fixing member of the utility model;

[0016] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0017] In the figure: 1. fixing part; 2. needle body; 3. positioning hole; 4. threaded groove; 5. positioning bolt; 6. slider; 7. positioning rod; 8. positioning groove; 9. return spring; 10. mounting groove; 11. guide rod; 12. pull block; 13. guide plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3The utility model provides a technical solution: a digital dental post channel preparation needle, including a fixing part 1, a needle body 2 is slidably inserted on one side of the fixing part 1, a positioning hole 3 is opened on the front side of the fixing part 1, a thread groove 4 is opened on the front side of the needle body 2, the positioning hole 3 is adapted to the thread groove 4, a positioning bolt 5 is movably inserted in the positioning hole 3, the end of the positioning bolt 5 is threadedly inserted in the thread groove 4, a guide plate 13 is fixedly sleeved on the fixing part 1, and a guide ring is inlaid on one side of the guide plate 13.

[0020] During the specific implementation, the needle body 2 is first slidably inserted into the fixing part 1, and then the positioning bolt 5 is inserted into the positioning hole 3 and the end thread is inserted into the thread groove 4. The needle body 2 can be stably positioned to avoid the problem of post channel preparation deviation during use. When drilling a hole in the patient's tooth root, the guide plate 13 can be used to control the post channel length, which plays a stopping role.

[0021] See also Figure 1-3 As shown, there are multiple positioning holes 3, and multiple positioning holes 3 are evenly spaced and arranged on the front side of the fixing member 1. By providing multiple positioning holes 3 and thread grooves 4, the length of the pile channel can be conveniently set according to different patients, thereby improving the use effect.

[0022] See also Figure 1-3 A slider 6 is slidably provided on the front side of the fixing member 1, a positioning rod 7 is fixedly installed on one side of the slider 6, a positioning groove 8 is opened on one side of the positioning bolt 5, the other end of the positioning rod 7 is slidably inserted in the positioning groove 8, a return spring 9 is fixedly installed on one side of the slider 6, the other end of the return spring 9 is arranged in the fixing member 1, a mounting groove 10 is opened on the front side of the fixing member 1, the slider 6 is slidably connected in the mounting groove 10, and the two ends of the return spring 9 are respectively fixedly connected to the slider 6 and the inner wall of the mounting groove 10.

[0023] In the specific implementation, on the basis of the above implementation, after the positioning bolt 5 is screwed into the threaded groove 4, the return spring 9 will push the slider 6 away due to its own elastic force and allow the positioning rod 7 to be inserted into the positioning groove 8, which can avoid the problem of loosening of the positioning bolt 5 when the fixing part 1 and the needle body 2 rotate at high speed, and can further improve the stability during use. When removing the positioning bolt 5, the slider 6 is pulled to slide the positioning rod 7 out of the positioning groove 8, so that the positioning bolt 5 can be easily removed, thereby improving convenience.

[0024] See also Figure 1-3 A guide rod 11 is inserted into the slider 6, and both ends of the guide rod 11 are fixedly installed in the mounting groove 10. The sliding direction of the slider 6 can be limited so that the slider 6 can only slide in the mounting groove 10 along the direction set by the guide rod 11 to avoid the problem of deviation.

[0025] See also Figure 1-3A pull block 12 is fixedly mounted on the front side of the slider 6, and an anti-skid pattern is arranged on the outer surface of the pull block 12. When a person pulls the slider 6, a force can be better applied. In addition, the anti-skid pattern is arranged on the pull block 12, which can increase the friction between the hand of the person and the pull block 12, thereby helping to solve the problem of slipping when the pull block 12 is pulled.

[0026] Working principle: When in use, first slide and insert the needle body 2 into the fixing part 1, then insert the positioning bolt 5 into the positioning hole 3 and make the end thread inserted into the thread groove 4, which can stably position the needle body 2 and avoid the problem of pile channel preparation deviation during use. By setting multiple positioning holes 3 and thread grooves 4, it is convenient to open the pile channel length according to different patients, thereby improving the use effect. After the positioning bolt 5 is screwed into the thread groove 4, the reset spring 9 will push the slider 6 away due to its own elastic force and insert the positioning rod 7 into the positioning groove 8, which can avoid the problem of loosening of the positioning bolt 5 when the fixing part 1 and the needle body 2 rotate at high speed, and can further improve the stability during use. When removing the positioning bolt 5, pull the pull block 12, so that the pull block 12 drives the slider 6 to move and slide the positioning rod 7 out of the positioning groove 8, so that the positioning bolt 5 can be easily removed, thereby improving convenience.

Claims

1. A digital dental post channel preparation needle, comprising a fixing member (1), a needle body (2) being slidably inserted into one side of the fixing member (1), characterized in that: A positioning hole (3) is provided on the front side of the fixing member (1), and a threaded groove (4) is provided on the front side of the needle body (2). The positioning hole (3) is matched with the threaded groove (4). A positioning bolt (5) is movably inserted into the positioning hole (3), and the end of the positioning bolt (5) is threadedly inserted into the threaded groove (4). A guide plate (13) is fixedly sleeved on the fixing member (1), and a guide ring is embedded on one side of the guide plate (13).

2. A digital dental post channel preparation needle according to claim 1, characterized in that: There are a plurality of positioning holes (3), and the plurality of positioning holes (3) are arranged at equal intervals on the front side of the fixing member (1).

3. A digital dental post channel preparation needle according to claim 1, characterized in that: A slider (6) is slidably mounted on the front side of the fixing member (1); a positioning rod (7) is fixedly mounted on one side of the slider (6); a positioning groove (8) is formed on one side of the positioning bolt (5); the other end of the positioning rod (7) is slidably inserted into the positioning groove (8); a return spring (9) is fixedly mounted on one side of the slider (6); the other end of the return spring (9) is arranged in the fixing member (1).

4. A digital dental post channel preparation needle as claimed in claim 3, characterized in that: The front side of the fixing member (1) is provided with a mounting groove (10), the sliding block (6) is slidably connected in the mounting groove (10), and the two ends of the return spring (9) are respectively fixedly connected to the sliding block (6) and the inner side wall of the mounting groove (10).

5. A digital dental post channel preparation bur as claimed in claim 4, characterized in that: A guide rod (11) is inserted into the sliding block (6), and both ends of the guide rod (11) are fixedly mounted in the mounting groove (10).

6. A digital dental post channel preparation bur as claimed in claim 3, characterized in that: A pull block (12) is fixedly mounted on the front side of the sliding block (6), and an outer surface of the pull block (12) is provided with anti-slip textures.

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