CN205286561U - Instruments for tooth extraction of wicresoft - Google Patents

Abstract

The utility model relates to a minimally invasive tooth extraction instrument. The minimally invasive tooth extraction instrument includes a root canal screw and a root canal screw removal device. The root canal screw removal device includes a bracket and a screw mechanism. The bracket is provided with a screw hole. The screw mechanism runs through the screw hole; the lower end of the screw mechanism is provided with a draw hook, the upper part of the root canal nail is provided with a through hole for the draw hook to pass through, and the bottom of the bracket is provided with a concave part; , by driving the root canal screw into the root canal of the tooth residual root, and the pulling force generated by the continuously rotating screw mechanism drives the hook to pull the root canal screw, and then the entire tooth residual root is pulled out.

Description

Minimally Invasive Extraction Instruments

technical field

The utility model relates to the technical field of medical devices, in particular to a minimally invasive tooth extraction device.

Background technique

At present, when extracting teeth in oral clinical surgery, the principle of lever mechanics is applied, and the instruments used usually include tooth lifters, chisels, hammers, and tooth extraction forceps. The method is to place the tooth lifter and chisel at the interdental space and the corresponding alveolar ridge, forcefully pry or chisel the tooth loose, and then hold the pliers, or shake or twist to pull the affected tooth out. There are many problems in using the above instruments to extract teeth. First, the extraction operation mainly depends on the dentist’s experience and technology. It needs a long clinical training to master it proficiently. It is difficult for young doctors to master it. Second, if you encounter a broken tooth root, Above-mentioned instrument can't locate on the residual root, often very troublesome, needs to cut gingiva sometimes, brings a lot of misery to patient; The 3rd, no matter adopt tooth lifter, chisel, hammer or tooth extraction forceps etc. all can cause wound when extracting the residual root of anterior tooth The area is large, which brings pain to the patient and affects the appearance; therefore, it is necessary to seek a minimally invasive tooth extraction device.

The current minimally invasive tooth extraction uses the wedge force and slight rotational force of the minimally invasive tooth extraction knife to cut off the periodontal ligament and squeeze the alveolar bone to increase the gap at the same time, and then use the tooth extraction forceps to extract the tooth with a slight force, although this The minimally invasive tooth extraction method greatly reduces the damage to the periodontal tissue during the entire tooth extraction process. However, due to the use of tooth extraction forceps to extract teeth, it will inevitably touch the patient's gums, causing varying degrees of damage and bringing a lot of pain to the patient. , and the minimally invasive tooth extraction instruments are all imported expensive and cannot be popularized, and there is no special residual root extraction tool on the market at present.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a minimally invasive tooth extraction instrument. When the utility model is extracting the residual tooth root, the root canal nail is driven into the root canal of the tooth residual root, and continuously rotates The pulling force generated by the screw mechanism drives the retractor to pull the root canal nail, and then the entire residual root of the tooth is pulled out.

In order to achieve the above object, the utility model adopts the following technical solutions:

A minimally invasive tooth extraction instrument, the minimally invasive tooth extraction instrument includes a root canal screw and a root canal screw extraction device, the root canal screw extraction device includes a bracket and a screw mechanism, the bracket is provided with a screw hole, and the screw mechanism runs through the The screw hole; the lower end of the screw mechanism is provided with a pull hook, the upper part of the root canal nail is provided with a through hole for the pull hook to pass through, and the bottom of the bracket is provided with a recess.

When the minimally invasive tooth extraction instrument of the utility model is in the process of minimally invasive tooth extraction, the wedge force and the rotation force produced by the existing minimally invasive tooth extraction knife are selected at first, the periodontal ligament is cut off and the alveolar bone is squeezed to increase the gap, and then the The root canal screw is driven into the root canal of the residual root of the tooth, and the hook connected to the screw mechanism is connected with the root canal screw, and the root canal screw is pulled out by the pulling force generated by the screw mechanism on the bracket continuously rotating upwards to pull out the residual root out; the minimally invasive tooth extraction instrument provided by the utility model is to apply force inside the residual root, and will not cause damage to the periodontal tissue and gums around the residual root; while the tooth extraction forceps in the existing tooth extraction operation is to apply force inside the residual root Applying force around, using tooth extraction forceps will inevitably cause the patient's gums to be damaged, the trauma area is large, and it is easy to cause fear to the patient.

The utility model is provided with a concave part at the bottom of the bracket. During the tooth extraction process, the concave part at the bottom of the bracket can just bear against two adjacent teeth. On the one hand, this provides a force point for the tooth extraction operation, and on the other hand, it increases the tooth extraction process during the tooth extraction process. The stability of the device prevents the sliding of the bracket.

The pull hook provided at the lower end of the screw mechanism of the utility model can realize the connection with the root canal nail through the small hole; in the utility model, the number of small holes can be multiple, as long as the pull hook can be closely connected with the root canal nail ; Preferably, the retractable hook is detachably connected to the screw mechanism; with this arrangement, it is convenient to disassemble and sterilize the retractor, and it is also conducive to the storage of the device for extracting root canal nails used for minimally invasive tooth extraction; Preferably, the end of the screw mechanism is provided with an annular groove, the drag hook includes a hook tail, a hook body and a hook point, and the hook tail is embedded in the annular groove provided at the end of the screw mechanism; The hook tail of the hook is embedded in the annular groove to prevent the drag hook from detaching from the screw mechanism and increase the tightness of the connection between the drag hook and the screw mechanism; more preferably, the hook tail is set as a collar that matches the annular groove, The entire structure of the hook tail is set as a collar, and the collar is embedded in the annular groove, so that the tight connection between the drag hook and the screw mechanism can be realized more conveniently.

In the present utility model, the bracket can be a bracket of any shape, as long as it can provide a fulcrum for pulling out root canal screws; preferably, the bracket includes a first support rod and a second support rod, and the first support rod A support rod is connected with one end of the second support rod through a cross bar; the drag hook is arranged on one side of the opening of the bracket.

Preferably, the screw mechanism is a screw rod.

Preferably, a rotating head is provided on the screw mechanism on the side opposite to the opening direction of the stent; when the screw mechanism is unscrewed upwards, the medical personnel can simply rotate the rotating head provided on the top of the screw mechanism, which can facilitate the operation of the medical personnel ; Further preferably, the rotating head and the screw mechanism are spirally connected, and this setting facilitates the replacement of the rotating head; more preferably, the rotating head is provided with a handle bar, and the handle bar can be set to It is convenient for medical staff with little strength, especially female doctors, and the use of the handle bar can avoid the pain caused by direct operation of the rotating head with fingers.

Compared with the prior art, the utility model has the following beneficial effects:

The minimally invasive tooth extraction assembly provided by the utility model realizes the extraction of the residual tooth root through the interaction between the root canal nail, the hook and the screw mechanism; the minimally invasive tooth extraction assembly provided by the utility model exerts force inside the residual tooth root The root canal screw driven into the residual root of the tooth is pulled by the rotating screw mechanism to drive the extraction of the entire residual root, which will not cause damage to the periodontal tissue and gingiva around the residual root; while the tooth extraction forceps in the prior art are all in the residual root. Applying force around the root, when using tooth extraction forceps, it will inevitably cause damage to the patient's gums, resulting in a larger trauma area, and it is easy to cause fear to the patient; the utility model is especially suitable for relatively few missing teeth, often only The tooth is extracted under the condition that one tooth and adjacent teeth are relatively strong; the utility model is simple in structure, reasonable in design, and the trauma generated in the tooth extraction process is minimal, and the comfort level of the patient is greatly improved.

Description of drawings

Fig. 1 is the schematic diagram of the device for extracting root canal nails of the minimally invasive tooth extraction instrument provided in Example 1;

Fig. 2 is the schematic diagram of the support of the minimally invasive tooth extraction instrument that embodiment 1 provides;

3 is a schematic diagram of the pull hook of the root canal screw removal device provided in Example 1;

4 is a schematic diagram of the screw rod of the root canal screw removal device provided in Example 1;

FIG. 5 is a schematic diagram of the endodontic nail adapted to the endodontic nail removal device provided in Embodiment 1. FIG.

detailed description

The utility model will be further described below in conjunction with specific embodiments.

In the accompanying drawings of the utility model embodiment, the same or similar symbols correspond to the same or similar parts; The orientation or positional relationship indicated by "right", "top", "bottom", "inner", "outer" etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the utility model and simplifying the description, and It does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the drawings are for illustrative purposes only, and should not be construed as limitations on this patent.

In addition, if terms such as "first" and "second" are used for descriptive purposes only, they are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used for The relative importance and quantity of the indicated means, elements or components are stated or implied, and should not be construed as indicating or implying relative importance.

The utility model will be further elaborated below in conjunction with the accompanying drawings and specific embodiments. The following description is only exemplary and does not limit the protection scope of the utility model.

Example 1

The minimally invasive tooth extraction instrument is characterized in that the minimally invasive tooth extraction instrument includes a root canal screw 1 and a root canal screw removal device 2, and the root canal screw removal device 2 includes a bracket 3 and a screw mechanism 4, and the bracket 3 is provided with There is a screw hole 5, the screw mechanism 4 runs through the screw hole 5; the lower end of the screw mechanism 4 is provided with a pull hook 6, the upper part of the root canal nail 1 is provided with a through hole 7 for the pull hook 6 to pass through, and the support 3 The bottom is provided with a recess 8.

Fig. 1 is a schematic diagram of a root canal screw removal device 2, and Fig. 5 is a schematic diagram of a root canal screw 1 compatible with the root canal screw removal device 2; as shown in Fig. 1 and Fig. 5, the upper part of the root canal screw 1 is provided with The through hole 7, the pull hook 6 can pass through the through hole 7, so as to realize the tight connection between the pull hook 6 and the root canal nail 1; Fig. 2 is a schematic diagram of the bracket 3, as shown in Fig. 2, the bracket 3 includes a first support rod 31 and a second support rod 32 , one end of the first support rod 31 and the second support rod 32 are connected by a cross bar 9 .

In this embodiment, the retractable hook 6 is detachably connected to the screw mechanism 4; this arrangement facilitates the removal and disinfection of the retractor 6, and also facilitates the storage of the device 2 for removing root canal nails; Figure 4 is a schematic diagram of the screw mechanism 4 of this embodiment, as shown in Figure 4, the end of the screw mechanism 4 is provided with an annular groove 10, Figure 3 is a schematic diagram of the drag hook 6, as shown in Figure 3, the drag hook 6 Comprising a hook tail 61, a hook body 62 and a hook tip 63, the hook tail 61 is embedded in the annular groove 10 provided at the end of the screw mechanism 4, and the hook tail 61 can be set as a collar matching the annular groove 10. This kind of setting, by embedding the hook tail 61 of the drag hook 6 in the annular groove 10, prevents the drag hook 6 from breaking away from the screw mechanism 4, and increases the tightness connected between the drag hook 6 and the screw mechanism 4; the whole structure of the hook tail 61 is set as The collar, the collar is embedded in the annular groove 10, can more conveniently realize the tight connection between the drag hook 6 and the screw mechanism 4; in this embodiment, the screw mechanism 4 is a screw rod.

As shown in Figure 2, the bottom of the bracket 3 is provided with a concave portion 8. During the tooth extraction process, the concave portion 8 at the bottom of the bracket 3 can just bear against two adjacent teeth, which provides a force point for the tooth extraction operation on the one hand, and another On the one hand, the stability of the whole tooth extraction device in the tooth extraction process has been increased to prevent the sliding of the support 3.

In this embodiment, a rotating head 11 is provided on the screw rod 4 on the side opposite to the opening direction of the bracket 3 , and the rotating head 11 and the screw rod 4 are connected by a screw, which facilitates the replacement of the rotating head 11 . In this embodiment, the rotating head 11 is provided with a handle bar 12, and the setting of the handle bar 12 can facilitate the use of weak medical staff, especially female doctors, and the use of the handle bar 12 can prevent fingers from directly operating the rotating head 11. pain.

Claims (6)

1. Wicresoft's instruments for tooth extraction, it is characterized in that, described Wicresoft instruments for tooth extraction includes canal pin (1) and pulls out canal pin device (2), described canal pin device (2) of pulling out includes support (3) and screw mechanism (4), being provided with screw (5) on described support (3), described screw mechanism (4) runs through described screw (5); Described screw mechanism (4) lower end is provided with drag hook (6), and described canal pin (1) top is provided with the through hole (7) passed through for drag hook (6), and the bottom of described support (3) is provided with recess (8).

2. Wicresoft's instruments for tooth extraction according to claim 1, it is characterized in that, described support (3) is included one end of the first support bar (31) and the second support bar (32), described first support bar (31) and described second support bar (32) and is connected by cross bar (9).

3. Wicresoft's instruments for tooth extraction according to claim 1, it is characterized in that, described screw mechanism (4) end is provided with annular groove (10), described drag hook (6) includes hook tail (61), coupler body (62) and bill (63), and described hook tail (61) embeds in the annular groove (10) that screw mechanism (4) end is arranged.

4. Wicresoft's instruments for tooth extraction according to claim 1, it is characterised in that described screw mechanism (4) is screw rod.

5. Wicresoft's instruments for tooth extraction according to claim 1, it is characterised in that with the screw mechanism (4) of described support (3) opening direction opposite side is provided with swivel head (11).

6. Wicresoft's instruments for tooth extraction according to claim 1, it is characterised in that be additionally provided with handlebar (12) on described swivel head (11).