A vertical wisdom tooth root breaking and extracting tool
Patent Information
- Application Number
- CN202410152873.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2044-02-02
AI Technical Summary
但是,由于垂直位的智齿其方向与正常的牙齿的生产方向具有较大的偏移,牙挺端部的工具头在翘松的过程中很难寻取支撑的支点,不方便牙挺工具对垂直位齿跟的取出操作
[0019] By setting the end of the tool in a curved structure, the fixed section and the extension section of its connecting rod form a near-vertical state, and the tool head is located at the end of the extension section, so that the tool head is in a near-vertical state directly with the handle, which makes it easy to operate and use for removing vertical wisdom teeth.
Smart Images

Figure CN117838338B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and more specifically, to a tool for removing the root of a vertically positioned wisdom tooth. Background Technology
[0002] In dental procedures, various auxiliary tools are needed for tooth extraction, such as dental elevators and forceps. Among them, dental elevators are one of the most commonly used auxiliary tools for tooth extraction, especially when extracting complex wisdom teeth. Dental elevators are used to loosen the teeth so that the teeth and roots can be removed.
[0003] Among them, vertically positioned wisdom teeth have a relatively developed shape and position, with their roots offset from the direction of ordinary teeth, exhibiting a vertical offset. Current dental elevators are typically vertical, with the tool head and handle positioned in a straight line or near-straight line, designed based on the structure of ordinary teeth. This makes current dental elevators difficult to use for removing the roots of vertically positioned wisdom teeth.
[0004] In addition, after the dental elevator is inserted into the tooth root, it is necessary to use the outer periphery of the tooth as a fulcrum to loosen the tooth root. However, because the direction of the vertical wisdom tooth is significantly offset from the normal tooth growth direction, it is difficult for the tool head at the end of the dental elevator to find a supporting fulcrum during the loosening process, making it inconvenient to remove the vertical tooth root using the dental elevator.
[0005] Therefore, a new solution is needed to address this problem. Summary of the Invention
[0006] The purpose of this invention is to solve the above-mentioned problems by providing a tool for removing the broken root of a vertically positioned wisdom tooth, which can be used for the removal of the broken root of a vertically positioned wisdom tooth.
[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a tool for removing a vertically positioned wisdom tooth root fracture, comprising a handle, a connecting rod, and a tool head, wherein the connecting rod comprises a fixed section, a curved section, and an extension section connected in sequence, wherein the fixed section and the extension section are both straight rods and form an angle α between them; the curved section is arc-shaped and connects the fixed section and the extension section; the tool head is located at the end of the extension section away from the fixed section; a pad is provided on the back of the tool head, the pad being adjustable along the end direction of the tool head to form a fulcrum when the root fracture is pried open.
[0008] The invention is further configured such that the extension section has a guide groove, the guide groove is set in the extension direction and is located on the back of the tool head; the pad is embedded in the guide groove and is slidably adapted to the guide groove, and the pad part protrudes from the outer periphery of the extension section.
[0009] The invention is further configured such that the guide groove extends to the back of the tool head, and the depth of the guide groove gradually decreases toward the end of the tool head on the back of the tool head.
[0010] The present invention is further configured such that a guide slope is formed on the back side of the tool head of the guide groove, and an inclined transition is formed between the bottom of the guide groove and the back side of the tool head through the guide slope.
[0011] The present invention is further configured such that the portion of the pad protruding outside the guide groove is fixedly connected to a limiting protrusion, and the limiting protrusion abuts against and adapts to the contours of the outer sides of the guide groove.
[0012] The invention is further configured such that an elastic sleeve is fitted around the outer periphery of the extension section, the elastic sleeve surrounds and covers the pad block inside, the elastic sleeve extends to one end of the extension near the tool head, and the tool head is exposed outside the elastic sleeve.
[0013] The invention is further configured to include an adjustment line connected to the pad block, wherein the bending section and the fixing section of the connecting rod are provided with an inner hole, and the inner hole communicates with the guide groove of the extension section; the adjustment line is arranged along the guide groove and the inner hole.
[0014] The invention is further configured such that a guide notch is provided on one side of the tool head facing the end, and a transverse through hole is provided on the extension section, the through hole communicating with the bottom of the guide groove; the first end of the adjustment line extends from the pad along the guide groove and into the inner hole; the second section of the adjustment line extends from the pad along the guide groove toward the end of the tool head, bypasses the guide notch, then passes through the through hole and extends into the guide groove, and then extends along the guide groove into the inner hole.
[0015] The invention is further configured to include a winding assembly, which is disposed in the inner cavity of the handle, and the inner cavity has an opening communicating with the inner hole; the adjustment line passes through the guide groove and the inner hole and extends into the handle, and is adjusted by the winding assembly.
[0016] The present invention is further configured such that the winding assembly includes a rotating shaft, two winding wheels, and two ratchet mechanisms. The rotating shaft is rotatably connected to the inner cavity and is driven to rotate by a motor, enabling bidirectional rotation. The two winding wheels are rotatably connected to the outer periphery of the rotating shaft, and the two winding wheels are linked to the rotating shaft through two ratchet mechanisms, with the ratchet teeth of the two ratchet mechanisms moving in opposite directions. The first end and the second end of the adjusting line are respectively wound around the outer periphery of the two winding wheels.
[0017] The invention is further configured such that the ratchet mechanism includes a transmission ring and a transmission platform. The transmission ring is fixedly connected to the end face of the take-up reel and coaxial with the rotating shaft. The transmission platform is fixedly connected to the outer periphery of the rotating shaft. The outer periphery of the transmission platform is provided with a plurality of linkage blocks, one end of which is rotatably connected to the transmission platform, and the other end of which forms a second ratchet. The inner periphery of the transmission ring is fixedly connected with a plurality of first ratchets, and the first and second ratchets are ratchet-compatible. The outer periphery of the transmission platform is fixed with a plurality of stop blocks, which are compatible with the first and second linkage blocks to restrict the outward swing of the linkage blocks. After the linkage blocks swing outward, they abut against the stop blocks and maintain the ratchet linkage between the second and first ratchets.
[0018] In summary, the present invention has the following beneficial effects:
[0019] By setting the end of the tool in a curved structure, the fixed section and the extension section of its connecting rod form a near-vertical state, and the tool head is located at the end of the extension section, so that the tool head is in a near-vertical state directly with the handle, which makes it easy to operate and use for removing vertical wisdom teeth.
[0020] By setting an adjustable pad on the back of the tool head, the pad on the back of the tool head can form a fulcrum, which facilitates the tool to tilt. In addition, the position of the pad can be adjusted according to actual needs to adapt to the actual oral cavity environment. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of a tool for removing vertically fractured wisdom teeth according to the present invention. Figure 1 ;
[0022] Figure 2 This is a schematic diagram of the structure of a tool for removing vertically fractured wisdom teeth according to the present invention. Figure 2 ;
[0023] Figure 3 This is a schematic diagram of the structure of a tool for removing vertically fractured wisdom teeth according to the present invention. Figure 3 ;
[0024] Figure 4 for Figure 3 Sectional view at point AA;
[0025] Figure 5 A schematic cross-section of the extension of the present invention. Figure 1 ;
[0026] Figure 6 A schematic cross-section of the extension of the present invention. Figure 2 ;
[0027] Figure 7 A schematic cross-section of the extension of the present invention. Figure 3 ;
[0028] Figure 8 This is a schematic diagram of the internal structure of the handle of the present invention;
[0029] Figure 9 This is a schematic diagram of the structure of the winding assembly of the present invention;
[0030] Figure 10 This is a schematic diagram of the ratchet mechanism of the present invention.
[0031] Reference numerals: 1. Handle; 101. Opening; 102. Inner cavity; 2. Connecting rod; 201. Fixed section; 202. Extension section; 203. Bending section; 3. Tool head; 301. Back side; 302. End; 4. Pad; 401. Limiting protrusion; 402. Elastic sleeve; 5. Adjustment line; 501. First end; 502. Second end; 6. Guide groove; 601. Guide slope; 7. Guide notch; 8. Through hole; 9. Limiting groove; 10. Inner hole; 11. Rewinding assembly; 111. Rotating shaft; 112. Rewinding wheel; 113. Ratchet mechanism; 114. Transmission ring; 115. Transmission table; 116. Ratchet one; 117. Linkage block; 118. Ratchet two; 119. Stop block; 12. Motor; 13. Light-emitting element. Detailed Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0033] This embodiment discloses a tool for removing the root fracture of a vertically positioned wisdom tooth, such as... Figure 1-3 As shown, the tool includes a handle 1, a connecting rod 2, and a tool head 3. The connecting rod 2 is L-shaped and includes a fixed section 201, a curved section, and an extension section 202 connected in sequence. The fixed section 201 and the extension section 202 are both straight rods and form an angle α with each other. The angle α is between 90-100°, making the fixed section 201 and the extension section 202 nearly perpendicular, thus facilitating the use of the tool for root fracture of wisdom teeth in perpendicular positions. The curved section is arc-shaped and connects the fixed section 201 and the extension section 202, forming an arc-shaped transition at the connection point.
[0034] The tool head 3 is located at the end of the extension section 202 opposite to the fixed section 201. During operation, the tool head 3 is used to operate the wisdom tooth. A cutting edge can be formed at the end 302 of the tool head 3 to facilitate cutting. The specific shape of the cutting edge can be set according to specific needs.
[0035] like Figure 3 ,4 As shown, a pad 4 is provided on the back 301 of the tool head 3. The pad 4 is an adjustable structure and can be adjusted along the end 302 of the tool head 3. When the tool head 3 is prying to break off roots, the pad 4 on the back 301 of the tool head 3 can form a fulcrum, which facilitates the tool's prying operation. Furthermore, the position of the pad 4 can be adjusted according to actual needs to adapt it to the actual working environment.
[0036] like Figure 4 , 5 As shown, a guide groove 6 is provided in the extension section 202 of the connecting rod 2. The guide groove 6 is positioned along its extension direction and is located on the back side 301 of the tool head 3. The shape of the pad 4 is adapted to the shape of the guide groove 6, and it is partially embedded in the guide groove 6. It can slide and adapt to the guide groove 6, so that the pad 4 can maintain smooth movement during adjustment along the guide groove 6 and can guide the pad 4. The pad 4 protrudes from the outer periphery of the extension section 202, and thus the part of the pad 4 can form an outward protrusion, through which a support fulcrum is formed.
[0037] The guide groove 6 extends to the back surface 301 of the tool head 3 to accommodate the adjustment range of the pad 4; and, at the back surface 301 of the tool head 3, the depth of the guide groove 6 gradually decreases towards the end 302 of the tool head 3. The closer the guide groove 6 is to the end 302 of the tool head 3, the higher the pad 4 protrudes from the guide groove 6, thereby allowing adjustment of the protrusion height of the pad 4 to form different adjustment states, which can adapt to the position of the wisdom tooth during operation.
[0038] like Figure 4 As shown, the guide groove 6 is located on the back side 301 of the tool head 3 and a guide slope 601 is formed. The guide slope 601 forms an inclined transition between the bottom of the guide groove 6 and the back side 301 of the tool head 3. When the pad 4 moves to the position of the slope, the pad 4 can be supported by the slope and can be gradually guided and pushed towards the outside of the guide groove 6, thereby allowing the pad 4 to adjust the height of the protruding guide groove 6.
[0039] like Figure 6 As shown, to increase stability during the pad adjustment process, a limiting protrusion 401 can be fixedly connected to the portion of the pad 4 protruding from the guide groove 6. There are two limiting protrusions 401, located on both sides of the guide groove 6, respectively. The limiting protrusions 401 abut against the contours of the outer sides of the guide groove 6. By forming a corresponding guiding structure at the opening 101 of the guide groove 6 through the limiting protrusions 401, the position of the pad 4 can be more stably restricted, preventing lateral displacement of the pad 4 within the guide groove 6.
[0040] Furthermore, such as Figure 5 As shown, an elastic sleeve 402 is fitted around the outer periphery of the extension section 202. The elastic sleeve 402 is made of elastic rubber and can surround and cover the pad 4, maintaining the positional stability of the pad 4. The pad 4 can move smoothly within the elastic sleeve 402 and is limited by the elastic sleeve 402, ensuring smooth movement of the pad 4. Furthermore, the elastic sleeve 402 extends to one end of the extension near the tool head 3, with the tool head 3 protruding from the elastic sleeve 402 to accommodate the adjustment position of the pad 4.
[0041] like Figure 3 , 4 As shown, the tool for removing the root fracture of the vertical wisdom tooth also includes an adjustment line 5, which is connected to the pad 4. The movement of the pad 4 is achieved by pulling the adjustment line 5, which can actively adjust and control the position of the pad 4.
[0042] An inner hole 10 is formed within the bent section 203 and the fixed section 201 of the connecting rod 2, and the inner hole 10 communicates with the guide groove 6 of the extension section 202. When installing the adjusting line 5, it first extends along the guide groove 6, then extends into the inner hole 10, and then connects to the handle 1. A winding assembly 11 is installed inside the handle 1, through which the connecting line can be wound and adjusted to accommodate the movement of the pad 4 and the connecting line.
[0043] Furthermore, such as Figure 1 , 2 As shown, a guide notch 7 is provided on the side of the tool head 3 facing the end 302. The two sides of the notch protrude downwards, forming a relatively smooth recessed structure at the notch, which can guide and restrict the position of the connecting line.
[0044] A transverse through hole 8 is provided in the extension section 202. The through hole 8 is located in the lower middle section of the extension section 202 and communicates with the bottom of the guide groove 6. The middle position of the adjustment line 5 is fixedly connected to the pad 4. The first end 501 of the adjustment line 5 extends from the pad 4 along the guide groove 6 and into the inner hole 10. The second end of the adjustment line 5 extends from the pad 4 along the guide groove 6 towards the end 302 of the tool head 3, bypasses the guide notch 7, and then extends through the through hole 8 into the guide groove 6, and then extends along the guide groove 6 into the inner hole 10. Both ends of the connecting line are set along the guide groove 6 and extend into the inner hole 10 of the connecting rod 2, and then into the handle 1, which is driven by the winding assembly 11 in the handle 1.
[0045] Furthermore, a limiting groove 9 can be opened on the outside of the extension section 202. The limiting groove 9 is located between the notch and the through hole 8. The connecting line between the notch and the through hole 8 is inserted into the limiting groove 9 to maintain the stability of the adjustment action of the connecting line.
[0046] During the adjustment process, the adjusting line 5 is adjusted by pulling the first end 501 and the second end 502. By pulling the first end 501 of the adjusting line 5, the adjusting line 5 will be tightened, thereby moving the pad 4 away from the end 302 of the tool head 3, so that the position between the pad 4 and the tool head 3 will be moved away, reducing the impact of the pad 4 on the tool head 3 during operation. By pulling the second end 502 of the adjusting line 5, the adjusting line will be tightened, thereby moving the pad 4 towards the end 302 of the tool head 3, so that the pad 4 gradually moves to the back 301 of the tool head 3, thereby gradually increasing the height of the protrusion of the pad 4, increasing the fulcrum position of the back 301 of the tool head 3, and thus making it easier to remove the broken tooth root.
[0047] like Figure 8 , 9 As shown, the tool for removing a broken root of a vertically positioned wisdom tooth also includes a winding assembly 11; the handle 1 has a hollow internal structure, forming an inner cavity 102; the winding assembly 11 is installed in the inner cavity 102 of the handle 1, and the inner cavity 102 has an opening 101 communicating with the inner hole 10. The adjustment line 5 passes through the guide groove 6 and the inner hole 10 and extends into the handle 1, and is adjusted by the winding assembly 11, thereby allowing the adjustment line 5 to be adjusted.
[0048] like Figure 8 , 9 As shown in Figures 1 and 10, the winding assembly 11 includes a rotating shaft 111, two winding wheels 112 and two ratchet mechanisms 113. The rotating shaft 111 is rotatably connected to the inner cavity 102 and is driven to rotate by a motor 12. The motor 12 can achieve bidirectional rotation, thereby enabling the rotating shaft 111 to rotate in both directions.
[0049] Both take-up rollers 112 have shaft holes inside. The take-up rollers 112 are sleeved on the outer circumference of the rotating shaft 111 and can rotate relative to the rotating shaft 111. The first end 501 and the second end 502 of the adjusting line 5 are respectively wound around the outer circumference of the two take-up rollers 112, and the winding directions of the first end 501 and the second end 502 are opposite.
[0050] Two ratchet mechanisms 113 are connected between the two take-up wheels 112 and the rotating shaft 111. Each ratchet mechanism 113 can rotate in one direction. When the rotating shaft 111 rotates in the forward direction relative to the ratchet mechanism 113, the ratchet mechanism 113 engages its ratchet teeth, thereby driving the take-up wheels 112 to rotate synchronously with the rotating shaft 111. When the rotating shaft 111 rotates in the reverse direction relative to the ratchet mechanism 113, the ratchet teeth in the ratchet mechanism 113 slip, and no linkage occurs. Furthermore, the ratchet teeth of the two ratchet mechanisms 113 engage in opposite directions.
[0051] When the winding assembly 11 is working, the motor 12 drives the rotating shaft 111 to rotate actively through the transmission assembly. When the rotating shaft 111 rotates in the forward direction, the first ratchet mechanism 113 is engaged, driving the first winding wheel 112 to rotate. The first winding wheel 112 will wind up the first end 501 of the adjusting line 5. The second ratchet mechanism 113 is not engaged, and the second winding wheel 112 does not rotate with the rotating shaft 111 and does not actively unwind the adjusting line 5. At the same time, because the first end 501 is pulled by the winding of the first winding wheel 112, the second end 502 of the adjusting line 5 will be passively and adaptively pulled, so that the second winding wheel 112 can passively unwind, realizing the automatic unwinding of the adjusting line 5, keeping the adjusting line 5 in a relatively taut state during the adjustment process, preventing the adjusting line 5 from becoming loose, and thus maintaining the positional stability of the pad block 4.
[0052] When the rotating shaft 111 rotates in the reverse direction, the ratchet mechanism 113 is engaged, driving the second take-up wheel 112 to rotate. The second take-up wheel 112 will take up the second end 502 of the adjusting line 5. No linkage occurs in the first ratchet mechanism 113. Because the second end 502 is pulled by the take-up wheel 112, the second end 502 of the adjusting line 5 will be passively pulled, thereby making the pad 4 smoothly and adaptively adjusted.
[0053] like Figure 9 , 10 As shown, the ratchet mechanism 113 includes a transmission ring 114 and a transmission platform 115. The transmission ring 114 is fixedly connected to the end face of the take-up reel 112 and is coaxial with the rotating shaft 111. The transmission platform 115 is fixedly connected to the outer periphery of the rotating shaft 111. Several linkage blocks 117 are provided on the outer periphery of the transmission platform 115, and the number of linkage blocks 117 is three sets. One end of the linkage block 117 is rotatably connected to the transmission platform 115, and the other end forms a ratchet tooth 118. The ratchet tooth 118 of the linkage block 117 can produce adaptive swing adjustment.
[0054] The inner circumference of the transmission ring 114 is fixedly connected with several ratchet teeth 116, which are ratchet teeth 116 and ratchet teeth 118 that are ratchet-adapted. When the linkage block 117 swings outward, the ratchet teeth 118 of the linkage block 117 will adapt to the ratchet teeth 116 on the inner circumference of the transmission ring 114, thereby forming a ratchet linkage between the two. Furthermore, several stop blocks 119 are fixed on the outer circumference of the transmission table 115. The stop blocks 119 are adapted to the linkage block 117 one by one, and the stop blocks 119 can limit the outward swing amplitude of the linkage block 117. After the linkage block 117 swings outward, it abuts against the stop blocks 119, maintaining the ratchet linkage between the ratchet teeth 118 and ratchet teeth 116.
[0055] like Figure 10As shown, during clockwise rotation of the shaft 111, the second ratchet 118 on the outer side of the linkage block 117 engages with the first ratchet 116 of the transmission ring 114, and is limited by the stop block 119, thus achieving ratchet linkage. During counterclockwise rotation of the shaft 111, the linkage block 117 swings inward, causing the second ratchet 118 on the outer side of the linkage block 117 to disengage from the second ratchet 118 on the inner circumference of the transmission ring 114, allowing the ratchet mechanism to slip and preventing rotational linkage in this direction. In another ratchet mechanism 113, the directions of the first ratchet 116 and the second ratchet 118 are... Figure 8 The shapes are opposite, and the linkage directions of the two sets of ratchet mechanisms 113 are also opposite.
[0056] Furthermore, a light-emitting element 13 can be installed on the connecting rod 2. The light-emitting element 13 can be an LED or an optical fiber. The light-emitting element 13 provides supplemental lighting in the oral cavity, facilitating the removal of the broken wisdom tooth root. The light-emitting element 13 can be installed on the connecting rod 2, with the fixed section 201 of the connecting rod 2 facing the tool head 3, so that the illumination direction of the light-emitting element 13 is consistent with the direction of the tool head 3, thus facilitating the illumination of the broken root area.
[0057] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A vertical wisdom tooth root-breaking extraction tool, characterized by, The tool includes a handle (1), a connecting rod (2), and a tool head (3). The connecting rod (2) includes a fixed section (201), a bent section (203), and an extension section (202) connected in sequence. The fixed section (201) and the extension section (202) are both straight rods and form an angle α with each other. The bent section (203) is arc-shaped and connects the fixed section (201) and the extension section (202). The tool head (3) is located at the end of the extension section (202) away from the fixed section (201). A pad (4) is provided on the back (301) of the tool head (3). The pad (4) can be adjusted along the end (302) of the tool head (3) to form a fulcrum when prying the root. The extension section (202) is provided with a guide groove (6), which is set in the extension direction and located on the back (301) of the tool head (3); the pad (4) is embedded in the guide groove (6) and is slidably adapted to the guide groove (6), and part of the pad (4) protrudes from the outer periphery of the extension section (202); The guide groove (6) extends to the back side (301) of the tool head (3), and at the back side (301) of the tool head (3), the depth of the guide groove (6) gradually decreases toward the end (302) of the tool head (3); The guide groove (6) is located on the back (301) of the tool head (3) and a guide slope (601) is formed therein. The guide slope (601) forms an inclined transition between the bottom of the guide groove (6) and the back (301) of the tool head (3). It also includes an adjustment line (5), which is connected to the pad (4). The connecting rod (2) has an inner hole (10) in the bent section (203) and the fixed section (201), and the inner hole (10) is connected to the guide groove (6) of the extension section (202). The adjustment line (5) is set along the guide groove (6) and the inner hole (10). The tool head (3) has a guide notch (7) on one side facing the end (302), and the extension section (202) has a transverse through hole (8) that communicates with the bottom of the guide groove (6). The first end (501) of the adjustment line (5) extends from the pad (4) along the guide groove (6) and into the inner hole (10). The second section of the adjustment line (5) extends from the pad (4) along the guide groove (6) toward the end (302) of the tool head (3), bypasses the guide notch (7), and then extends through the through hole (8) into the guide groove (6), and then extends along the guide groove (6) into the inner hole (10). It also includes a winding assembly (11), through which the adjustment line (5) can be adjusted.
2. The tool for removing a vertically positioned wisdom tooth root fracture according to claim 1, characterized in that, The portion of the pad (4) protruding outside the guide groove (6) is fixedly connected to a limiting protrusion (401), and the limiting protrusion (401) and the contours on both sides of the outside of the guide groove (6) press against each other and adapt to each other.
3. The tool for removing a vertically positioned wisdom tooth root fracture according to claim 1, characterized in that, The extension section (202) is fitted with an elastic sleeve (402) around its outer periphery. The elastic sleeve (402) surrounds and covers the pad (4). The elastic sleeve (402) extends to one end of the extension near the tool head (3), and the tool head (3) is exposed outside the elastic sleeve (402).
4. The tool for removing a vertically positioned wisdom tooth root fracture according to claim 1, characterized in that, It also includes a winding assembly (11), which is located in the inner cavity (102) of the handle (1). The inner cavity (102) has an opening (101) communicating with the inner hole (10). The adjustment line (5) passes through the guide groove (6) and the inner hole (10) and extends into the handle (1), and is adjusted by the winding assembly (11).
5. The tool for removing a vertically positioned wisdom tooth root fracture according to claim 4, characterized in that, The winding assembly (11) includes a rotating shaft (111), two winding wheels (112) and two ratchet mechanisms (113). The rotating shaft (111) is rotatably connected to the inner cavity (102) and is driven to rotate by a motor (12), enabling bidirectional rotation. The two winding wheels (112) are rotatably connected to the outer periphery of the rotating shaft (111). The two winding wheels (112) are linked to the rotating shaft (111) through two ratchet mechanisms (113), and the ratchet teeth of the two ratchet mechanisms (113) are linked in opposite directions. The first end (501) and the second end (502) of the adjusting line (5) are wound around the outer periphery of the two winding wheels (112).
Citation Information
Patent Citations
Wisdom tooth elevator
CN213665858U
Novel adjustable dental forceps
CN213941009U
Ligation instrument for varicosity
CN217611222U