CN205339177U - Preceding tooth wicresoft dentagra - Google Patents

Abstract

The utility model discloses a minimally invasive extraction forceps for anterior teeth, which comprises two pliers arms movable and fixed through hinged shafts, the front ends of the pliers arms are connected with pliers heads, and the two pliers heads are parallel to each other and are divided into upper pliers heads and the lower pliers head, the corresponding positions in the vertical direction of the two pliers heads are provided with several pairs of pliers beak holes, and the pliers beak holes are evenly distributed in the length direction of the pliers head, and two pairs of pliers beak holes pass through the two vertically respectively. There are two pliers beaks, the tips of the two pliers beaks are minimally invasive tooth extraction, facing inwardly; the beak holes of the upper pliers head are provided with openable and closable fixing parts to fix the upper ends of the pliers beaks. The utility model adjusts the beak structure of the anterior tooth minimally invasive tooth extraction forceps by associating with CT and MRI before the implant operation, and by analyzing the condition of the residual root, so as to minimize the damage to the surroundings of the tooth root. The tip of the beak is designed to be minimally invasive and can also reduce the damage to the alveolar bone, making the process of tooth extraction easier.

Description

Anterior tooth minimally invasive tooth extraction forceps

technical field

The utility model belongs to the technical field of medical instruments, in particular to a minimally invasive extraction forceps for anterior teeth.

Background technique

Immediate implant is to implant the implant into the alveolar socket at the same time as the tooth is extracted. After it heals, the denture can be connected to repair the missing tooth, thereby reducing the number of operations and surgical trauma, and restoring the occlusal and aesthetic functions of the teeth early. It is the development of oral reconstruction technology. important direction. In immediate implant surgery, it is often necessary to minimally injure the residual root embedded in the gums of the anterior teeth, and try not to damage any tissue around the root, so as to facilitate the immediate implant surgery.

An existing minimally invasive tooth extraction forceps is designed with a fan-shaped beak and an arc-shaped beak. When in use, the curved beak is used to clamp the affected tooth, and the buffer pad of the fan-shaped beak is placed on the buccal mucosa-gingiva of the affected tooth. At the junction, when the forceps rotate, the cushion pad is used as the fulcrum, and the line connecting the arc-shaped beak of the forceps and the cushion pad is the resistance arm. Deformation occurs, the periodontal ligament is torn, and the affected tooth is pulled out with the leverage force generated by the fulcrum cushion. This technology uses the cushion as the fulcrum. During the extraction process of the affected tooth, especially after the beak of the forceps has been wedged into the periodontal ligament, the leverage force is used to make the affected tooth leave the alveolar socket. The force is greater at the fulcrum, while the anterior There is often a certain amount of alveolar bone absorption around the residual root of the tooth, and it is easy to dig out the alveolar bone on the side of the fulcrum, resulting in damage to the tissues around the root.

Contents of the invention

The utility model provides a minimally invasive extraction forceps for anterior teeth aiming at the deficiencies of the prior art. The minimally invasive tooth extraction forceps adopts a double-beak structure, and the two beaks are designed as a minimally invasive tooth extraction, which can be wedged from both sides of the tooth root without causing major damage.

The utility model is achieved through the following technical solutions.

A minimally invasive tooth extraction forceps for anterior teeth, including two identical forceps arms that are movably fixed by hinged shafts. The front ends of the forceps arms are connected with forceps heads, and the two forceps heads are parallel to each other, and are divided into upper forceps head and lower forceps The corresponding positions in the vertical direction of the two pliers heads are provided with several pairs of pliers beak holes, and the pliers beak holes are evenly distributed in the length direction of the pliers heads, and two pairs of pliers beak holes pass through the two pliers beaks vertically. , the beak tips of the two pliers beaks are minimally invasive tooth extraction, facing inwardly; the beak holes of the upper pliers head are provided with openable and closable fixing parts to fix the upper ends of the pliers beaks.

At present, before implant surgery, it is generally necessary to evaluate the bone mass of the patient and irradiate CT. While analyzing the alveolar bone condition of the patient, the residual root of the anterior tooth is analyzed to obtain accurate parameters of the residual root. In the structure of the utility model, several pairs of pliers beak holes are provided at the corresponding positions in the vertical direction of the two pliers heads, which is convenient for the doctor to select two pliers beak holes with different distances according to the parameters of the residual roots of the front teeth, and install the pliers beaks respectively, and then pass The fixing piece at the beak hole of the pliers is fixed. When in use, in view of the situation that the anterior teeth are generally single-rooted, after the beak tips of the two forceps are wedged into the periodontal ligament, the two forceps arms are closed, and the beak tips continue to penetrate until they reach the root tip of the affected tooth, and then the entire tooth is pulled upwards. Tooth extraction forceps, the tooth can fall out. The beak tips of the two forceps beaks are minimally invasive tooth extraction, and the thickness is moderate, which can minimize the damage to the tissues around the residual root. The openable and closable fixing member can adopt conventional fixing devices, such as buckle fixing, holding ring, groove fixing, etc., as long as the upper end of the pliers beak can be fixed.

Preferably, a pair of H file holes is provided at corresponding positions in the vertical direction in the middle of the two pliers heads, and the pair of H file holes passes through an H file vertically, and the H file holes of the upper pliers head are provided with Corresponding activity clamping device. In the middle of the two clamp heads, for the residual root, an H file that can be rotated into the root canal is designed to increase the success rate of tooth extraction. According to the specific situation of the patient, replace the H file with different sizes. More preferably, the H file is No. 40, which can adapt to the conditions of most patients.

Preferably, scales are provided on the length direction of the upper side of the upper pliers head. Doctors can more accurately adjust the distance between the beaks of the two forceps according to the size of the residual roots of the anterior teeth, so as to avoid unnecessary damage to the periodontal ligament.

Preferably, the beak tips of the two forceps beaks are provided with depth scale marks. The doctor can control the depth of the beak tip according to the size of the residual root of the anterior teeth, so as to avoid unnecessary damage to the surrounding of the root.

Preferably, the upper part of the minimally invasive tooth extraction lifter is detachably connected to the lower end of the pliers beak. This structure is convenient for doctors to replace different specifications of minimally invasive tooth extraction lifters according to the size or shape of the residual root of the anterior teeth, adapting to the conditions of different patients. .

Preferably, the minimally invasive tooth extraction lifter and beak are fixed by groove positioning devices provided at corresponding positions inside the port.

Preferably, the handle end of the pliers arm is provided with an anti-slip layer or a finger ring.

Compared with the prior art, the beneficial effect of the utility model lies in that the utility model can adjust the beak structure of the minimally invasive extraction forceps of the anterior teeth by associating with the CT and MRI before the implant operation, and by analyzing the condition of the residual root. Minimize the damage around the root of the tooth. The tips of the two forceps beaks are designed to be minimally invasive and can also reduce the damage to the alveolar bone. The process is easier.

Description of drawings

Fig. 1 is the overall schematic diagram of the minimally invasive tooth extraction forceps for anterior teeth of the present utility model.

Fig. 2 is a top view of the upper jaw portion.

Fig. 3 is a disassembled schematic diagram of the minimally invasive extraction tooth lifter and the groove positioning device inside the beak port.

Legend: 1-hinge shaft; 2-clamp arm; 21-anti-slip layer; 3-clamp head; 31-upper plier head; 32-lower plier head; 33-beak hole; 34-fixing piece; 35-H file Hole; 36-movable clamping device; 4-beak of forceps; 5-minimally invasive tooth extraction; 51-depth scale mark; 52-groove positioning device; 6-H file.

detailed description

Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail. Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than actual drawings, and should not be construed as limitations on this patent; in order to better illustrate the embodiments of the present utility model, some parts of the accompanying drawings will be omitted , enlargement or reduction, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings may be omitted.

Example 1

This embodiment provides a minimally invasive tooth extraction forceps for anterior teeth, as shown in Figures 1-3, including two identical forceps arms 2 that are movably fixed by a hinge shaft 1, and the hand-held ends of the forceps arms 2 are provided with a patterned anti-slip layer 21. It is convenient for doctors to hold it hard. The front ends of the pliers arms 2 are connected with a pliers head 3, and the two pliers heads 3 are parallel to each other, and are divided into an upper pliers head 31 and a lower pliers head 32, and several pairs of pliers beaks are arranged at corresponding positions in the vertical direction of the two pliers heads 3. Holes 33, the pliers beak holes 33 are evenly distributed in the length direction of the pliers head 3, wherein there are two pairs of pliers beak holes 33 vertically through the two pliers beaks 4 respectively, the beak tips of the two pliers beaks 4 are for minimally invasive tooth extraction Ting 5, facing inward. The upper part of the minimally invasive tooth extraction lifter 5 is detachably connected to the lower end of the beak 4, specifically, the minimally invasive tooth extraction lifter and the beak 4 are fixed by groove positioning devices 52 provided at corresponding positions inside the port. The beak tips of the two pliers beaks 4 are provided with depth scale marks 51 . The beak hole 33 of the upper pliers head 31 is provided with an openable and closable fixing piece 34 for fixing the upper end of the pliers beak 4 . A pair of H file holes 35 are provided in the middle of the two pliers heads 3 at corresponding positions in the vertical direction, and the pair of H file holes 35 vertically pass through an H file 6, and the H file 6 is a No. 40 H file . A corresponding movable clamping device 36 is provided at the H file hole 35 of the upper pliers head 31 . The openable and closable fixing part 34 and the movable clamping device 36 are all holding fastening devices.

The usage method of the present utility model: first collect the patient's residual root data, CT\MRI scan, carry out computer analysis or doctor's own analysis according to the obtained data, obtain the accurate parameter of residual root. Select the suitable minimally invasive tooth extraction lifter 5 and H setback 6 according to the analysis results, and pass the beak 4 with the minimally invasive tooth extraction lifter 5 through the beak hole 33 with an appropriate spacing, and fix it. The minimally invasive tooth extraction lifter 5 at the tip of the two forceps beaks 4 is wedged into the periodontal space, and the H file 6 is slowly screwed into the root canal manually to fix the movable clamping device 36 on the upper forceps head 31 . The doctor then manually closes the two forceps arms 2 to make the minimally invasive tooth extraction lifter 5 go deeper until reaching the root tip of the affected tooth, and then lifts the entire tooth extraction forceps upwards, and the tooth can fall off.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made, and it is not necessary and impossible to exhaustively enumerate all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principle scope of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims (7)

1. A minimally invasive tooth extraction forceps for anterior teeth, comprising two identical pincer arms movably fixed by hinged shafts, the front ends of the pincer arms are all connected with pincer heads, it is characterized in that the two pincer heads are parallel and opposite, divided into The upper pincer head and the lower pincer head are provided with several pairs of pincer beak holes at the corresponding positions in the vertical direction of the pincer heads. Through the two pliers beaks, the beak tips of the two pliers beaks are minimally invasive tooth extraction, facing inwardly; the pliers beak holes of the upper pliers head are equipped with openable and closable fixing parts to fix the upper end of the pliers beaks . 2. The anterior tooth minimally invasive tooth extraction forceps according to claim 1, wherein a pair of H file holes are arranged in the middle of the two pliers heads at corresponding positions in the vertical direction, and the pair of H file holes are vertically pierced. Through an H file, the H file hole of the upper pliers head is provided with a corresponding movable clamping device. 3. The minimally invasive tooth extraction forceps for anterior teeth according to claim 1, characterized in that scales are provided on the upper side of the upper forceps head in the longitudinal direction. 4. The anterior tooth minimally invasive tooth extraction forceps according to claim 3, characterized in that, the beak tips of the two forceps beaks are provided with depth scale marks. 5. The minimally invasive tooth extraction forceps for anterior teeth according to claim 1, characterized in that, the upper part of the minimally invasive tooth extraction lifter is detachably connected to the lower end of the beak of the forceps. 6. The minimally invasive tooth extraction forceps for anterior teeth according to claim 5, characterized in that, the minimally invasive tooth extraction lifter and forceps beak are fixed by groove positioning devices provided at corresponding positions inside the port. 7. The minimally invasive tooth extraction forceps for anterior teeth according to claim 1, characterized in that, the handle end of the forceps arm is provided with an anti-slip layer or a finger ring.