CN213098433U

CN213098433U - Broken root extractor

Info

Publication number: CN213098433U
Application number: CN202021223887.8U
Authority: CN
Inventors: 马亚
Original assignee: Huizhou Stomatological Hospital Co ltd
Current assignee: Huizhou Stomatological Hospital Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-05-04
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to a disconnected root extractor, including the grab handle, take out needle and enlarged footing, take out the needle with the lateral wall sliding connection of grab handle, the inside cavity that is equipped with of grab handle, the cavity is followed the length direction of grab handle extends and runs through the both ends of grab handle, the cavity interpolation is equipped with the connecting rod, the connecting rod with cavity threaded connection, the enlarged footing with the one end fixed connection of connecting rod. The utility model discloses a broken root extractor takes out being connected between needle and the grab handle for movable being connected, can adjust the length that takes out the needle and stretch out the grab handle tip according to actual demand when using to can support the tip of grab handle on the tooth, and regard this as the fulcrum, in order to make things convenient for the power of taking out the needle, and then pull out the broken root more effectively.

Description

Broken root extractor

Technical Field

The utility model relates to the technical field of oral medical instruments, in particular to a broken root extractor.

Background

Clinical practice in stomatology often meets the condition of broken roots of teeth, most of the broken roots are broken in the clinical tooth extraction process due to the fact that the tooth bodies and tooth root structures are diversified, particularly, one third of the tooth root tips are bent at various angles, and the broken tooth roots need to be extracted timely, so that the influence on restoration of a gum due to the residue of the broken roots is avoided. In the prior art, the dental forceps are usually used for extracting the root of the fractured bone through taking out the dental forceps, however, the working end of the dental forceps is relatively large compared with the root of the fractured bone, and the dental forceps are inconvenient to operate in practice. The holding end of the taking-out needle is small, the working end of the taking-out needle is usually fixed with the holding end in an integrated manner, the force point of the taking-out needle is difficult to find in actual operation, force is not easy to generate, and the situation of every broken root is different, so that the taking-out needle is more difficult to pull out the broken root.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a root-broken extractor for solving the above technical problems.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a disconnected root extractor, includes the grab handle, takes out needle and enlarged footing, take out the needle with the lateral wall sliding connection of grab handle, the inside cavity that is equipped with of grab handle, the cavity is followed the length direction of grab handle extends and runs through the both ends of grab handle, the cavity interpolation is equipped with the connecting rod, the connecting rod with cavity threaded connection, the enlarged footing with the one end fixed connection of connecting rod.

Furthermore, a sliding groove is dug in the side wall of the grab handle, a moving block is clamped in the sliding groove and can slide along the sliding groove, and the taking-out needle is fixedly connected with the moving block.

Furthermore, the moving block is fixed on the grab handle through an adjusting knob, a threaded hole is formed in the moving block, and a bolt matched with the threaded hole is arranged on the adjusting knob.

Furthermore, the other end of the connecting rod is fixedly provided with an adjusting block, and the diameter of the adjusting block is larger than that of the connecting rod.

Furthermore, part of the rod body of connecting rod is equipped with the external screw thread, the external screw thread is located the connecting rod and is close to the one end of regulating block, the cavity be equipped with external screw thread assorted internal thread.

Furthermore, the part of the rod body without the external thread on the connecting rod is in clearance fit with the inner wall of the cavity.

Furthermore, the taking-out needle is of an arc-shaped structure, and the expansion needle is provided with a thread structure.

Furthermore, the side wall of the grab handle is provided with an anti-skid structure.

Furthermore, the anti-skidding structure is provided with anti-skidding rubber or anti-skidding lines on the side wall of the grab handle.

The utility model discloses compare in prior art's beneficial effect and be:

the utility model discloses a broken root extractor takes out being connected between needle and the grab handle for movable being connected, can adjust the length that takes out the needle and stretch out the grab handle tip according to actual demand when using to can support the tip of grab handle on the tooth, and regard this as the fulcrum, in order to make things convenient for the power of taking out the needle, and then pull out the broken root more effectively. Additionally, the utility model discloses a grab handle still is equipped with the enlarged footing, hides inside the grab handle when not needing to use, can make the enlarged footing stretch out through the rotation when needs use to accomplish the operation of drawing out the marrow in the marrow cavity, through adjusting the enlarged footing immediately and getting out the needle relatively known, can replace the operating condition of this disconnected root extractor in a flexible way, both practiced thrift use cost, also reduced the time that the doctor looked for the instrument, thereby improved work efficiency.

Drawings

Fig. 1 is a sectional view of the root extractor according to the embodiment of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a right side view of fig. 1.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to specific embodiments and drawings.

Referring to fig. 1-3, a preferred embodiment of the present invention is as follows.

The utility model provides a disconnected root extractor, includes grab handle 1, takes out needle 2 and enlarged footing 3, takes out the lateral wall sliding connection of needle 2 and grab handle 1, and grab handle 1 is inside to be equipped with cavity 11, and cavity 11 extends and runs through the both ends of grab handle 1 along the length direction of

grab handle

1, and 11 interpolations in cavity are equipped with connecting rod 4, connecting

rod

4 and 11 threaded connection of cavity, the one end fixed connection of enlarged footing 3 and connecting rod 4. The broken root extractor of this embodiment takes out being connected for movable between needle 2 and the grab handle 1, can adjust the length of taking out needle 2 and stretching out grab handle 1 tip according to actual demand when using to can support the tip of grab handle 1 on the tooth, and regard this as the fulcrum, in order to conveniently take out the power of having an effect of needle 2, and then pull out the broken root more effectively. Additionally, the utility model discloses a grab handle 1 still is equipped with the expanding pin 3, hide inside grab handle 1 when not needing to use, can make the expanding pin 3 stretch out through the rotation when needs use to make the expanding pin produce frictional force with the root pipe wall and be convenient for pull out disconnected root end, through adjusting the expanding pin 3 and take out needle 2 relatively knowing immediately, can replace the operating condition of this disconnected root extractor in a flexible way, both practiced thrift use cost, also reduced the time that the doctor looked for the instrument, thereby work efficiency has been improved.

In this embodiment, a sliding groove 12 is dug in the side wall of the handle 1, a moving block 5 is clamped in the sliding groove 12, the moving block 5 can slide along the sliding groove 12, and the withdrawing needle 2 is fixedly connected with the moving block 5. The taking-out needle 2 is driven by the moving block 5 to move on the sliding groove 12, so that the position of the taking-out needle 2 extending out of the end part of the grab handle 1 can be adjusted, when the broken root extractor is not needed to be used, the moving block 5 can be moved to the upper end of the sliding groove 12, the taking-out needle 2 is enabled not to extend out of the end part of the grab handle 1 completely, the advantage is that the tip of the taking-out needle 2 can be hidden, and therefore the condition that the taking-out needle 2 is damaged due to careless touch is avoided.

In this embodiment, the moving block 5 is fixed on the handle 1 through an adjusting knob 6, a threaded hole is formed on the moving block 5, and the adjusting knob 6 is provided with a bolt matched with the threaded hole. As another embodiment, an extension block for further fixing the withdrawing needle 2 may be added to the adjusting knob 6, and the adjusting knob 6 may lock the withdrawing needle 2 while locking the moving block 5, so that the withdrawing needle 2 may be more stable during operation.

In the embodiment, the other end of the connecting rod 4 is fixedly provided with an adjusting block 7, and the diameter of the adjusting block 7 is larger than that of the connecting rod 4. In order to improve the aesthetic appearance of the broken root extractor, the adjusting block 7 of the present embodiment is preferably cylindrical, and has the same diameter as the grip 1, and the side wall of the adjusting block 7 is further provided with a stripe for preventing slipping.

In this embodiment, a part of the rod body of the connecting rod 4 is provided with an external thread 41, the external thread 41 is located at one end of the connecting rod 4 close to the adjusting block 7, the cavity 11 is provided with an internal thread matched with the external thread 41, and the part of the rod body of the connecting rod 4 without the external thread 41 is in clearance fit with the inner wall of the cavity 11. The processing difficulty can be reduced to a certain extent only by arranging the partial thread structure, the cost can be effectively saved, and it needs to be explained that the length of the thread part is greater than that of the expanding needle 3.

In this embodiment, the withdrawing needle 2 has an arc-shaped structure, and the expanding needle 3 has a thread structure. The curved structure can make the taking-out needle 2 more fit to the side surface of the broken root, so as to facilitate the force application when taking out. The thread structure of the enlarged needle 3 is to facilitate insertion into the root canal to create resistance and to pull out the stump.

In this embodiment, the side wall of the handle 1 is provided with an anti-slip structure. The anti-slip structure is provided with anti-slip rubber or anti-slip lines on the side wall of the grab handle 1.

In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. The utility model provides a disconnected root extractor, its characterized in that includes the grab handle, takes out needle and enlarged footing, take out the needle with the lateral wall sliding connection of grab handle, the inside cavity that is equipped with of grab handle, the cavity is followed the length direction of grab handle extends and runs through the both ends of grab handle, the cavity interpolation is equipped with the connecting rod, the connecting rod with cavity threaded connection, the enlarged footing with the one end fixed connection of connecting rod.

2. The broken root extractor as claimed in claim 1, wherein a sliding groove is dug in a side wall of the handle, a moving block is clamped in the sliding groove, the moving block can slide along the sliding groove, and the extraction needle is fixedly connected with the moving block.

3. The broken root extractor as claimed in claim 2, wherein the moving block is fixed on the handle by an adjusting knob, the moving block is provided with a threaded hole, and the adjusting knob is provided with a bolt matching with the threaded hole.

4. The broken root extractor as claimed in claim 1, wherein an adjusting block is fixedly provided at the other end of the connecting rod, and the diameter of the adjusting block is larger than that of the connecting rod.

5. The broken root extractor as claimed in claim 4, wherein a portion of the rod body of the connecting rod is provided with an external thread at an end of the connecting rod close to the adjusting block, and the cavity is provided with an internal thread matching with the external thread.

6. A rhizotomy extractor according to claim 5, wherein the engagement between the shank portion of the rod without the external thread and the inner wall of the cavity is a clearance fit.

7. The extraction instrument as claimed in claim 1, wherein the extraction needle has an arc-shaped configuration and the enlarged needle has a threaded configuration.

8. A rhizotomy extractor according to any of claims 1-7, wherein the side wall of the grip is provided with anti-slip means.

9. The broken root extractor as claimed in claim 8, wherein the anti-slip structure is anti-slip rubber or anti-slip lines on the side wall of the handle.