Filler extractor for root canal retreatment in department of stomatology

Abstract

A filler extractor for root canal retreatment in the department of stomatology comprises a handle, the two ends of the handle are each provided with a filler extracting assembly used for extracting filler in an oral root canal, and the filler extracting assemblies arranged at the two ends of the handle are the same in structure and opposite in direction. Each filler taking-out assembly is composed of a transition rod and an object taking rod, one end of the transition rod is fixedly connected with one end of the handle, the other end of the transition rod is fixedly connected with one end of the object taking rod, and the other end of the object taking rod is fixedly provided with a filler taking-out head. According to the invention, a two-end design is adopted, and each end adopts a two-end bending design, so that the multi-angle working requirement can be met; the extractor can easily overcome resistance brought by compressed filler in the working process, grooves are formed in the bottoms of the thin conical structures, residual filler in the apical hole can be carried out in the working return stroke, and therefore the filling material can be effectively taken out, operation is convenient, tools are prevented from being replaced many times, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to a device for dental root canal retreatment, and in particular to a filling material extractor for dental root canal retreatment. Background Art

[0002] During endodontic treatment, the infected pulp is removed, the canal is disinfected and filled with sealing material to complete the treatment process. However, if the microorganisms causing the infection are not completely eliminated, after a period of time they may cause disease at the root apex, known as periapical lesions. For this reason, a second intervention is necessary, in which the root canal is accessed from the coronal part in the same way as the first treatment, the existing filling is removed and the root canal is cleaned and disinfected as much as possible before sealing again, thus performing a retreatment of the root canal.

[0003] Re-treatment involves removal of the previous root canal filling and re-cleaning, shaping and filling. However, compacted fillings can create resistance to instrumentation, and insufficient material removal can result in restricted access to the apical foramen. This compromises root canal disinfection and affects the time and efficiency of treatment and cleaning.

[0004] The oral medical devices currently used in oral clinics require multiple operations using different tools to complete the removal of filling materials. The operation is cumbersome and the surgical efficiency is low. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a filling material extractor for oral root canal retreatment, which is convenient for removing oral root canal filling materials, in order to overcome the deficiencies of the prior art.

[0006] The technical solution adopted by the present invention is: a filling extractor for oral root canal retreatment, comprising a handle, wherein a group of filling extraction components for removing fillings in oral root canals are respectively arranged at both ends of the handle, and the filling extraction components arranged at both ends of the handle are arranged with the same structure and opposite directions, and each group of filling extraction components is composed of a transition rod and a removal rod, one end of the transition rod is fixedly connected to one end of the handle, and the other end of the transition rod is fixedly connected to one end of the removal rod, and the other end of the removal rod is fixedly provided with a filling extraction head.

[0007] The filler removal head is composed of a first cone and a second cone connected as one body, the bottom of the first cone and the second cone are formed with an inwardly recessed conical groove, the cone tip of the second cone is integrally connected to the center top of the conical groove at the bottom of the first cone, the picking rod is integrally connected to the center top of the conical groove at the bottom of the second cone, and the first cone, the second cone and the picking rod are coaxial, so that the first cone and the second cone form a first carrying groove and a second carrying groove for carrying residual fillers.

[0008] The length of the transition rod is 4-8 mm, and the angle between the transition rod and the axis direction of the handle is 90-110°.

[0009] The length of the picking rod is 20-40 mm, and the angle between the picking rod and the axis direction of the transition rod is 50-70°.

[0010] The overall length of the handle is 100-110 mm.

[0011] The handle is composed of a handle body with a cylindrical structure and a connecting head integrally formed at both ends of the handle body for connecting to the filler removal assembly. A number of evenly distributed rough anti-slip grooves are formed on the outer surface of the handle body. The connecting head has a circular trapezoidal structure at one end connected to the handle body and a columnar structure at one end connected to the filler removal assembly with a diameter the same as that of the transition rod in the filler removal assembly.

[0012] The diameter of the handle body is in the range of 5 to 10 mm.

[0013] The present invention discloses a filling extractor for dental root canal retreatment, which is designed with two ends and each end is bent at both ends, so as to meet the working requirements at multiple angles. In addition, the extraction head is designed with a fine cone structure and is composed of two superimposed fine cone structures, so that the extractor can easily overcome the resistance brought by the compressed filling during the working process. The bottom of the fine cone structure is provided with a groove, so that the residual filling in the apical foramen can be carried out during the working return stroke, so as to effectively complete the removal of the filling material, and the operation is convenient, so as to avoid multiple tool changes, reduce the number of operations, save operation time, and improve operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the filling extractor used for root canal retreatment in stomatology according to the present invention;

[0015] Figure 2 It is a schematic diagram of the external structure of the filling material removal head in the present invention;

[0016] Figure 3 yes Figure 2 sectional view of .

[0017] In the picture

[0018] 1: Handle 1.1: Handle body

[0019] 1.2: Connector 2: Transition rod

[0020] 3: Pick-up rod 4: Filler removal head

[0021] 4.1: First cone 4.2: Second cone

[0022] 4.1a: First carrying slot 4.2a: Second carrying slot DETAILED DESCRIPTION

[0023] The following is a detailed description of a filling extractor for root canal retreatment of the present invention in conjunction with the embodiments and drawings.

[0024] like Figure 1 As shown, a filling extractor for oral root canal retreatment of the present invention comprises a handle 1, and a group of filling extraction components for extracting fillings in oral root canals are respectively arranged at both ends of the handle 1. The filling extraction components arranged at both ends of the handle 1 are arranged in opposite directions with the same structure, which can meet the working requirements at different angles. Each group of filling extraction components is composed of a transition rod 2 and a removal rod 3, one end of the transition rod 2 is fixedly connected to one end of the handle 1, and the other end of the transition rod 2 is fixedly connected to one end of the removal rod 3, and the other end of the removal rod 3 is fixedly provided with a filling extraction head 4.

[0025] The overall length of the handle 1 is 100-110 mm, and the diameter of the handle body 1.1 is 5-10 mm. The handle 1 is composed of a handle body 1.1 with a cylindrical structure and a connector 1.2 integrally formed at both ends of the handle body 1.1 for connecting to the filler removal assembly. A number of evenly distributed rough anti-slip grooves are formed on the outer surface of the handle body 1.1 to prevent the instrument from loosening when the operator holds it and avoid accidents. The connector 1.2 is a circular trapezoidal structure at the end connected to the handle body 1.1, and a columnar structure with the same diameter as the transition rod 2 in the filler removal assembly at the end connected to the filler removal assembly.

[0026] like Figure 2 , Figure 3As shown, the filler removal head 4 is composed of a first cone 4.1 and a second cone 4.2 connected together, the bottom of the first cone 4.1 and the second cone 4.2 is formed with an inwardly recessed conical groove, the cone tip of the second cone 4.2 is integrally connected to the center top of the conical groove at the bottom of the first cone 4.1, the removal rod 3 is integrally connected to the center top of the conical groove at the bottom of the second cone 4.2, and the first cone 4.1, the second cone 4.2 and the removal rod 3 are coaxial, so that the first cone 4.1 and the second cone 4.2 are formed with a first carrying groove 4.1a and a second carrying groove 4.2a for carrying residual fillers, which can easily overcome the resistance caused by the compressed filler during the working process, and can carry out the residual filler in the apical foramen during the working return process, thereby effectively completing the removal of the filler, convenient operation, avoiding multiple tool changes, reducing the number of operations, and improving surgical efficiency.

[0027] The length of the transition rod 2 is 4-8 mm, and the angle between the transition rod 2 and the axis of the handle 1 is 90-110°. The length of the picking rod 3 is 20-40 mm, and the angle between the picking rod 3 and the axis of the transition rod 2 is 50-70°.

[0028] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which belong to the scope of protection of the present invention.

Claims

1. A filling extractor for dental root canal retreatment, comprising a handle (1), characterized in that: A group of filling removal components for removing fillings from oral root canals are respectively arranged at both ends of the handle (1). The filling removal components arranged at both ends of the handle (1) have the same structure but are arranged in opposite directions. Each group of filling removal components is composed of a transition rod (2) and a removal rod (3). One end of the transition rod (2) is fixedly connected to one end of the handle (1), and the other end of the transition rod (2) is fixedly connected to one end of the removal rod (3). The other end of the removal rod (3) is fixedly provided with a filling removal head (4).

2. A filling extractor for dental root canal retreatment according to claim 1, characterized in that: The filler removal head (4) is composed of a first cone (4.1) and a second cone (4.2) connected together, the bottom of the first cone (4.1) and the second cone (4.2) are formed with an inwardly recessed conical groove, the cone tip of the second cone (4.2) is integrally connected to the center top of the conical groove at the bottom of the first cone (4.1), the picking rod (3) is integrally connected to the center top of the conical groove at the bottom of the second cone (4.2), and the first cone (4.1), the second cone (4.2) and the picking rod (3) are coaxial, so that the first cone (4.1) and the second cone (4.2) are formed with a first carrying groove (4.1a) and a second carrying groove (4.2a) for carrying residual fillers.

3. A filling extractor for dental root canal retreatment according to claim 1, characterized in that: The length of the transition rod (2) is 4 to 8 mm, and the angle between the transition rod (2) and the axis direction of the handle (1) is 90 to 110°.

4. A filling extractor for dental root canal retreatment according to claim 1, characterized in that: The length of the picking rod (3) is 20 to 40 mm, and the angle between the picking rod (3) and the axis direction of the transition rod (2) is 50 to 70°.

5. The filling extractor for dental root canal retreatment according to claim 1, characterized in that: The overall length of the handle (1) is 100-110 mm.

6. The filling extractor for dental root canal retreatment according to claim 1, characterized in that: The handle (1) is composed of a handle body (1.1) of a cylindrical structure and a connector (1.2) integrally formed at both ends of the handle body (1.1) for connecting to the filler removal assembly. A plurality of evenly distributed rough anti-slip grooves are formed on the outer surface of the handle body (1.1). The connector (1.2) is a circular trapezoidal structure at one end connected to the handle body (1.1), and is a columnar structure at one end connected to the filler removal assembly, with the diameter being the same as that of the transition rod (2) in the filler removal assembly.

7. A filling extractor for dental root canal retreatment according to claim 6, characterized in that: The diameter of the handle body (1.1) is in the range of 5 to 10 mm.

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