Instrument for taking out gutta percha in root canal

Abstract

The utility model discloses an instrument for taking out gutta percha in a root canal, and relates to the technical field of medical instruments. According to the instrument for taking out gutta percha in the root canal, the handle is in threaded connection with the threaded sleeve, the first movable seat is driven to be in threaded connection with the inner side of the threaded hole, and therefore the handle and the working head are rapidly assembled, and after the instrument is used, the threaded sleeve is rotated to drive the second movable seat to rotate, so that the first movable seat is separated from the threaded hole; the threaded sleeve and the working head are taken down from the end of the handle, cleaning and disinfection of instruments are facilitated, a first pull wire is driven by pressing a button to pull a first movable seat to slide, meanwhile, a second movable seat drives a lifting block to ascend through a second pull wire, at the moment, a movable hook is driven by transmission of a connecting rod to rotate to be separated from a containing groove, and gutta-percha can be hooked; after the gutta-percha is taken out, the button is loosened, the first spring pushes the first movable seat to reset, meanwhile, the lifting block is pushed by the second spring to reset, the movable hook is driven to reset and stored in the storage groove, and the working head can conveniently stretch into the root canal next time.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an instrument for removing gutta-percha from a root canal. Background Art

[0002] Root canal treatment is currently the most effective method for treating pulp disease and periodontal disease. Its principle is to remove most of the infected substances in the root canal through mechanical and chemical methods, and to prevent the occurrence of periodontal lesions or promote the healing of existing periodontal lesions by filling the root canal and sealing the crown. During the root canal retreatment operation, the gutta-percha filling in the root canal must be removed completely in order to implement other treatment steps.

[0003] Existing root canal retreatment surgeries do not have dedicated gutta-percha removal instruments. Existing instruments are difficult to remove root canal gutta-percha, which is time-consuming, labor-intensive, and inefficient. They can also easily lead to problems such as gutta-percha residue and even instrument breakage, which is not conducive to subsequent treatment steps. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a root canal gutta-percha removal instrument, which solves the problem that there is no dedicated gutta-percha removal instrument in the existing root canal retreatment surgery, it is difficult to completely remove the root canal gutta-percha using the existing instrument, which is time-consuming and labor-intensive, has low efficiency, and is prone to problems such as gutta-percha residue and even instrument breakage, which is not conducive to the subsequent treatment steps.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a root canal gutta-percha removal instrument, comprising a handle, a movable groove is provided at the left end of the handle, a button is provided at the left side of the lower end of the handle, a movable seat 1 is provided on the inner side of the movable groove, a spring 1 is fixedly installed on the right side of the movable seat 1, a baffle is fixedly installed on the inner side of the movable groove and located on the right side of the spring 1, a threaded sleeve is provided at the left end of the handle, a movable seat 2 is provided on the inner side of the threaded sleeve, a working head is fixedly installed on the left end of the threaded sleeve, a threading groove is provided on the inner side of the working head, a transmission compartment is provided on the inner side of the working head at the lower end of the threading groove, a spring 2 is provided on the inner side of the transmission compartment, a lifting block is provided at the lower end of the spring 2, and a movable hook is provided on the side of the lower end of the working head.

[0006] Preferably, the upper end of the button and the surface of the handle are rotatably connected via a hinge, a pull wire is fixedly installed on the left end of the button, the upper end of the pull wire extends to the inner side of the movable groove through a through hole, and is fixedly connected to the right end of the movable seat, thereby realizing the transmission of the button to the movable seat.

[0007] Preferably, a limit rod is fixedly installed on the upper and lower ends of the movable seat, and the end of the limit rod away from the movable seat is slidably connected to the inner side of the movable groove through a slide groove. The spring is sleeved on the outer side of the pull wire, and the right end of the spring is fixedly connected to the left side of the baffle. A through hole is opened on the surface of the baffle, and the pull wire and the inner side of the through hole are adapted to each other to facilitate pressing and resetting the button.

[0008] Preferably, the right end of the threaded sleeve and the outer side of the left end of the handle are threadedly connected, the left end of the movable seat one and the right end of the movable seat two are threadedly connected through a threaded hole, the upper and lower ends of the movable seat two are fixedly installed with a limiting rod two, one end of the limiting rod two away from the movable seat two is slidably connected to the inner side of the threaded sleeve through a sliding groove, and the left end of the movable seat two is fixedly connected with a pull wire two, which facilitates the disassembly and assembly of the threaded sleeve and the handle and the transmission of the movable seat one to the movable seat two.

[0009] Preferably, the working head is designed with a curved structure, the lower end of the wire threading groove and the inner side of the transmission bin are connected to each other through a through hole, the second pull wire extends to the inner side of the transmission bin through the wire threading groove, and is fixedly connected to the upper end of the lifting block, thereby realizing the transmission of the lifting block by the second movable seat.

[0010] Preferably, the second spring is sleeved on the outside of the second pull wire, the upper end of the second spring is fixedly connected to the inner side of the transmission bin, the lower end of the second spring is fixedly connected to the upper end of the lifting block, and the lifting block is slidably connected to the inner side of the transmission bin to facilitate the movement and resetting of the lifting block.

[0011] Preferably, a storage groove is opened on the side of the lower end of the working head, the movable hook and the inner side of the storage groove are adapted to each other, the lower end of the storage groove and the inner side of the transmission bin are connected to each other through a through groove, the lower end of the movable hook extends to the inner side of the transmission bin through the through groove, and is rotatably connected to the upper end of the lifting block, the left side of the movable hook is located on the inner side of the through groove and is rotatably connected to a connecting rod, the upper end of the connecting rod is rotatably connected to the inner side of the transmission bin, so as to facilitate the control of the extension and storage of the movable hook.

[0012] Beneficial Effects

[0013] The utility model provides a root canal gutta-percha removal instrument. Compared with the prior art, it has the following beneficial effects:

[0014] 1. The root canal gutta-percha removal instrument is provided with a handle, a movable seat 1, a limiting rod 1, a threaded sleeve, a movable seat 2, a threaded hole, a limiting rod 2, and a working head. The handle is sleeved with the threaded sleeve, and the threaded sleeve is rotated to thread it with the handle. At this time, the limiting rod 1 and the limiting rod 2 axially limit the movable seat 1 and the movable seat 2, driving the movable seat 1 to be threadedly connected with the inner side of the threaded hole, thereby realizing rapid assembly of the handle and the working head. After the instrument is used, the threaded sleeve can be rotated to drive the movable seat 2 to rotate, so that the movable seat 1 is disengaged from the threaded hole, and the threaded sleeve and the working head are removed from the end of the handle, thereby realizing the disassembly of the handle and the working head, and facilitating the cleaning and disinfection of the structures inside and outside the instrument.

[0015] 2. The instrument for removing the gutta-percha in the root canal is provided with a button, a hinge, a pull wire 1, a movable seat 1, a spring 1, a threaded sleeve, a movable seat 2, a pull wire 2, a working head, a receiving groove, a spring 2, a lifting block, a movable hook and a connecting rod. After the lower end of the working head is inserted into a suitable position in the root canal, the button is pressed to rotate along the hinge, driving the pull wire 1 to pull the movable seat 1 to slide, thereby compressing the spring 1. At the same time, the movable seat 2 drives the lifting block to rise through the pull wire 2 to compress the spring 2. At this time, the movable hook is driven by the transmission of the connecting rod to rotate and disengage from the receiving groove, so that the gutta-percha can be hooked and taken out. After taking out the gutta-percha, the button is released, so that the spring 1 pushes the movable seat 1 to reset, thereby driving the button to reset. At the same time, the lifting block is reset under the push of the spring 2, driving the movable hook to reset and store it in the receiving groove, so that it is convenient for the working head to extend into the root canal next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0017] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of a half-section structure of the utility model in a front view;

[0019] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0020] In the figure: 1. handle; 2. movable slot; 3. button; 31. hinge; 32. pull wire 1; 4. movable seat 1; 41. limit rod 1; 5. spring 1; 6. baffle; 7. threaded sleeve; 8. movable seat 2; 81. threaded hole; 82. limit rod 2; 83. pull wire 2; 9. working head; 91. storage slot; 92. through slot; 10. threading slot; 11. transmission compartment; 12. spring 2; 13. lifting block; 14. movable hook; 141. connecting rod. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 The utility model provides a technical solution: an instrument for removing gutta-percha from a root canal, comprising a handle 1, a movable groove 2 is provided at the left end of the handle 1, a button 3 is provided at the left side of the lower end of the handle 1, a movable seat 4 is provided on the inner side of the movable groove 2, the upper end of the button 3 and the surface of the handle 1 are rotatably connected by a hinge 31, a pull wire 32 is fixedly installed on the left end of the button 3, the upper end of the pull wire 32 extends to the inner side of the movable groove 2 through a through hole, and is fixedly connected to the right end of the movable seat 4, a spring 5 is fixedly installed on the right side of the movable seat 4, a baffle 6 is fixedly installed on the inner side of the movable groove 2 and located on the right side of the spring 5, a limiting rod 41 is fixedly installed at the upper and lower ends of the movable seat 4, an end of the limiting rod 41 away from the movable seat 4 is slidably connected to the inner side of the movable groove 2 through a sliding groove, the spring 5 is sleeved on the outer side of the pull wire 32, the right end of the spring 5 is fixedly connected to the left side of the baffle 6, the surface of the baffle 6 A through hole is opened, and the pull wire 32 and the inner side of the through hole are adapted to each other. The left end of the handle 1 is provided with a threaded sleeve 7, and the inner side of the threaded sleeve 7 is provided with a movable seat 2 8. The right end of the threaded sleeve 7 is threadedly connected to the outer side of the left end of the handle 1, and the left end of the movable seat 1 4 is threadedly connected to the right end of the movable seat 2 8 through a threaded hole 81. The upper and lower ends of the movable seat 2 8 are fixedly installed with a limiting rod 2 82, and the end of the limiting rod 2 82 away from the movable seat 2 8 is slidably connected to the inner side of the threaded sleeve 7 through a sliding groove. The left end of the movable seat 2 8 is fixedly connected with a pull wire 2 83, and the left end of the threaded sleeve 7 is fixedly installed with a working head 9. The handle 1 is sleeved with the threaded sleeve 7, and the threaded sleeve 7 is rotated to thread it with the handle 1. At this time, the limiting rod 1 41 and the limiting rod 2 82 axially limit the movable seat 1 4 and the movable seat 2 8, driving the movable seat 1 4 to be threadedly connected with the inner side of the threaded hole 81, thereby realizing the rapid assembly of the handle 1 and the working head 9;

[0023] A threading groove 10 is provided on the inner side of the working head 9, and a transmission compartment 11 is provided on the inner side of the working head 9 at the lower end of the threading groove 10. A spring 2 12 is provided on the inner side of the transmission compartment 11, and a lifting block 13 is provided on the lower end of the spring 2 12. The working head 9 is designed with a curved structure, and the lower end of the threading groove 10 and the inner side of the transmission compartment 11 are connected to each other through a through hole. The pull wire 2 83 extends to the inner side of the transmission compartment 11 through the threading groove 10 and is fixedly connected to the upper end of the lifting block 13. The spring 2 12 is sleeved on the inner side of the transmission compartment 11. The outer side of the pull wire 83, the upper end of the spring 12 and the inner side of the transmission bin 11 are fixedly connected, the lower end of the spring 12 and the upper end of the lifting block 13 are fixedly connected, the lifting block 13 and the inner side of the transmission bin 11 are slidably connected, the side of the lower end of the working head 9 is provided with a movable hook 14, the side of the lower end of the working head 9 is provided with a storage groove 91, the movable hook 14 and the inner side of the storage groove 91 are adapted to each other, the lower end of the storage groove 91 and the inner side of the transmission bin 11 are connected to each other through the through groove 92, and the movable hook 14 The lower end of the movable hook 14 extends to the inner side of the transmission bin 11 through the through slot 92, and is rotatably connected to the upper end of the lifting block 13. The left side of the movable hook 14 is located on the inner side of the through slot 92 and is rotatably connected to a connecting rod 141. The upper end of the connecting rod 141 is rotatably connected to the inner side of the transmission bin 11. When the gutta-percha needs to be taken out, the lower end of the working head 9 is inserted into a suitable position in the root canal, and the button 3 is pressed to rotate it along the hinge 31, driving the pull wire 32 to pull the movable seat 4 to slide, compressing the spring 5, and at the same time, the movable seat 4 is The movable seat 2 8 drives the lifting block 13 to rise through the pull wire 2 83, compressing the spring 2 12. At this time, the movable hook 14 is driven by the transmission of the connecting rod 141 to rotate and disengage from the receiving groove 91, so that the gutta-percha can be hooked. After taking out the gutta-percha, the button 3 is released, so that the spring 1 5 pushes the movable seat 1 4 to reset, thereby driving the button 3 to reset. At the same time, the lifting block 13 is reset under the push of the spring 2 12, driving the movable hook 14 to reset and be stored in the receiving groove 91, which is convenient for the working head 9 to extend into the root canal next time.

[0024] During use, the handle 1 is sleeved with the threaded sleeve 7, and the threaded sleeve 7 is rotated to threadably connect it with the handle 1. At this time, the limiting rod 1 41 and the limiting rod 2 82 axially limit the movable seat 1 4 and the movable seat 2 8, driving the movable seat 1 4 to be threadedly connected with the inner side of the threaded hole 81, thereby realizing the rapid assembly of the handle 1 and the working head 9. When the gutta-percha needs to be removed, after the lower end of the working head 9 is inserted into the appropriate position in the root canal, the button 3 is pressed to rotate it along the hinge 31, driving the pull wire 1 32 to pull the movable seat 1 4 to slide, compressing the spring 1 5, and at the same time, the movable seat 2 8 drives the lifting block 13 to rise through the pull wire 2 83, compressing the spring 2 12. When the tooth gel is taken out, the button 3 is released, so that the spring 15 pushes the movable seat 14 to reset, thereby driving the button 3 to reset. At the same time, the lifting block 13 is reset under the push of the spring 2 12, driving the movable hook 14 to reset and store it in the receiving groove 91, so that the working head 9 can be inserted into the root canal next time. After the use of the instrument is completed, the movable seat 2 8 can be driven to rotate by rotating the threaded sleeve 7, so that the movable seat 1 4 can be disengaged from the threaded hole 81, and the threaded sleeve 7 and the working head 9 can be removed from the end of the handle 1, so that the handle 1 and the working head 9 can be disassembled, which is convenient for cleaning and disinfection of the structure inside and outside the instrument.

[0025] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A root canal gutta-percha removal instrument, comprising a handle (1), characterized in that: The left end of the handle (1) is provided with a movable groove (2), the left side of the lower end of the handle (1) is provided with a button (3), the inner side of the movable groove (2) is provided with a movable seat (4), the right side of the movable seat (4) is fixedly installed with a spring (5), the inner side of the movable groove (2) is located on the right side of the spring (5) and a baffle (6) is fixedly installed, the left end of the handle (1) is provided with a threaded sleeve (7), the inner side of the threaded sleeve (7) is provided with a movable A movable seat (8) is provided, a working head (9) is fixedly mounted on the left end of the threaded sleeve (7), a threading groove (10) is provided on the inner side of the working head (9), a transmission compartment (11) is provided on the inner side of the working head (9) at the lower end of the threading groove (10), a spring (12) is provided on the inner side of the transmission compartment (11), a lifting block (13) is provided at the lower end of the spring (12), and a movable hook (14) is provided on the side of the lower end of the working head (9).

2. The root canal gutta-percha removal instrument according to claim 1, characterized in that: The upper end of the button (3) and the surface of the handle (1) are rotatably connected via a hinge (31); a pull wire (32) is fixedly mounted on the left end of the button (3); the upper end of the pull wire (32) extends through a through hole to the inner side of the movable groove (2) and is fixedly connected to the right end of the movable seat (4).

3. The root canal gutta-percha removal instrument according to claim 2, characterized in that: A limiting rod (41) is fixedly installed at the upper and lower ends of the movable seat (4), and the end of the limiting rod (41) away from the movable seat (4) is slidably connected to the inner side of the movable groove (2) through a sliding groove. The spring (5) is sleeved on the outer side of the pull wire (32), and the right end of the spring (5) is fixedly connected to the left side of the baffle (6). A through hole is opened on the surface of the baffle (6), and the pull wire (32) and the inner side of the through hole are adapted to each other.

4. The root canal gutta-percha removal instrument according to claim 1, characterized in that: The right end of the threaded sleeve (7) is threadedly connected to the outer side of the left end of the handle (1); the left end of the movable seat (4) is threadedly connected to the right end of the movable seat (8) via a threaded hole (81); the upper and lower ends of the movable seat (8) are fixedly mounted with a limit rod (82); one end of the limit rod (82) away from the movable seat (8) is slidably connected to the inner side of the threaded sleeve (7) via a sliding groove; the left end of the movable seat (8) is fixedly connected with a pull wire (83).

5. The root canal gutta-percha removal instrument according to claim 4, characterized in that: The working head (9) is designed to be a curved structure, the lower end of the threading groove (10) and the inner side of the transmission bin (11) are connected to each other through a through hole, the second pull wire (83) extends through the threading groove (10) to the inner side of the transmission bin (11), and is fixedly connected to the upper end of the lifting block (13).

6. The root canal gutta-percha removal instrument according to claim 5, characterized in that: The second spring (12) is sleeved on the outer side of the second pull wire (83), the upper end of the second spring (12) is fixedly connected to the inner side of the transmission bin (11), the lower end of the second spring (12) is fixedly connected to the upper end of the lifting block (13), and the lifting block (13) is slidably connected to the inner side of the transmission bin (11).

7. The root canal gutta-percha removal instrument according to claim 1, characterized in that: A receiving groove (91) is provided on the side of the lower end of the working head (9); the movable hook (14) and the inner side of the receiving groove (91) are adapted to each other; the lower end of the receiving groove (91) and the inner side of the transmission bin (11) are connected to each other via a through groove (92); the lower end of the movable hook (14) extends to the inner side of the transmission bin (11) via the through groove (92) and is rotatably connected to the upper end of the lifting block (13); the left side of the movable hook (14) is located on the inner side of the through groove (92) and is rotatably connected to a connecting rod (141); the upper end of the connecting rod (141) is rotatably connected to the inner side of the transmission bin (11).

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