CN209422133U - A device for extracting mandibular impacted tooth germ - Google Patents

Abstract

The utility model discloses a device for extracting mandibular impacted tooth germ. The device comprises a cylinder body, a connecting part and a rod part, and the two ends of the connecting part are respectively connected to the cylinder body and the rod part. , wherein, the cylinder is a hollow structure, one end surface of the cylinder is provided with sawtooth, and the side wall of the cylinder is provided with an opening in the axial direction, and the opening runs through the other end of the cylinder; A limiting portion is provided on the outer peripheral surface of the connecting portion, and the limiting portion protrudes outward along the radial direction of the connecting portion. The device can greatly shorten the operation time, reduce the pain of patients, and improve the efficiency; it is easy to operate, less likely to cause bone burns and necrosis, more minimally invasive, and convenient for clinical use in hospitals.

Description

A device for extracting mandibular impacted tooth germ

technical field

The utility model relates to the technical field of oral surgery medical instruments, in particular to a device for extracting mandibular impacted tooth germs.

Background technique

With the progress of society and the adjustment of people's diet structure, the incidence of mandibular impaction is increasing, especially the special position of the third molar, which is closely related to the adjacent teeth, making the operation more difficult. Impacted third molars often cause symptoms such as pericoronitis, caries and loosening of second molars, inflammatory resorption of alveolar bone, snapping of temporomandibular joints, and pain when opening the mouth. The most critical step in the extraction of impacted mandibular third molar tooth germ in oral clinical surgery is bone removal. The bone chisel and crown splitting method is commonly used to remove bone and split teeth in the extraction of impacted teeth. Bone removal and tooth extraction are performed internally, but the disadvantage is that the vibration is large during hammering, and postoperative swelling, pain, bleeding, mandibular nerve damage, and mandibular fractures are common. With the advancement of technology, bone removal equipment also includes high-speed turbine handpieces and ultrasonic bone knives: high-speed turbine handpieces are medical devices that use high-speed rotation of air turbines to grind, drill, cut, and cut teeth. Drive the turbine to rotate at high speed, thereby driving the bur held by the rotor to rotate at high speed, but the high-speed turbine drill takes a long time to remove bones and teeth, and the field of vision is poor. The vision is blurred, and improper operation of the drill needle is easy to wrap the surrounding soft tissue, causing damage and gas entering the surrounding tissue, causing emphysema, etc. In addition, the high-speed turbine handpiece also has defects such as high price and high maintenance cost; the ultrasonic bone knife is controlled by adjusting the ultrasonic frequency The vibration amplitude of the cutter head achieves the effect of cutting. The ultrasonic bone knife is used to extract the impacted teeth that are closely related to the inferior alveolar nerve canal. It has the advantages of protecting soft tissues, effectively preventing nerve damage, and high precision and sensitivity, but the disadvantage is that the operation The price is high, the operation time is long, and the time-consuming operation brings psychological and physical pain to the patient. Currently, there is no clinically available device for extracting impacted mandibular tooth germs.

Therefore, there is an urgent need to provide a device for extracting impacted mandibular tooth germs to solve the above problems.

Utility model content

The purpose of this utility model is to provide a device for extracting impacted mandibular tooth germs. It is used for extracting impacted mandibular tooth germs for the first time, which can greatly shorten the operation time and improve the operation efficiency; the peripheral surface of its connecting part A limiting portion protruding outward along the radial direction of the connecting portion is provided on the top to prevent excessive cutting of the mandibular impacted tooth germ from damaging the inferior alveolar nerve and adjacent teeth.

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

A device for extracting an impacted mandibular tooth germ, the device includes a cylinder body, a connecting part and a rod part, and the two ends of the connecting part are respectively connected to the cylinder body and the rod part, wherein the The cylinder is a hollow structure, one end of the cylinder is provided with sawtooth, and an opening is arranged in the axial direction on the side wall of the cylinder, and the opening runs through the other end of the cylinder; A limiting portion is provided on the outer peripheral surface, and the limiting portion protrudes outward along the radial direction of the connecting portion.

Further, the cylinder body, the connecting portion and the rod portion are of an integral structure.

Further, a scale line is provided on the outer side of the barrel.

Further, the cylinder is cylindrical, and its inner diameter ranges from 6 to 12 mm.

Further, the rod portion is provided with a bayonet socket at the end away from the connecting portion, and the bayonet socket is used for clipping the dental implant bending head.

Further, the limiting part is located on the same side of the side wall of the cylinder without holes.

The positive effect of a device for extracting mandibular impacted tooth germs of the utility model is:

(1) It is used to extract mandibular impacted tooth germs, which can greatly shorten the operation time and improve the efficiency.

(2) The design of the limiting part can prevent excessive cutting of the mandibular impacted tooth germ, so as to avoid damage to the inferior alveolar nerve and adjacent teeth.

(3) Easy to operate, less likely to cause bone burns and necrosis, and more minimally invasive.

Description of drawings

Describe the best embodiment of the present utility model in detail below in conjunction with accompanying drawing:

Fig. 1 is a front view of a device for extracting an impacted mandibular tooth germ in an embodiment of the present invention;

Fig. 2 is a side view of the device for extracting the mandibular impacted tooth germ according to the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a bayonet socket.

The labels in the figure are:

1. Cylinder body; 2. Connecting part;

3. Rod; 4. Sawtooth;

5. Opening hole; 6. Limiting part;

7. Scale line; 8. Bayonet.

Detailed ways

A specific embodiment of a device for extracting impacted mandibular tooth germs of the present invention will be given below in conjunction with the accompanying drawings, but it should be pointed out that the implementation of the present invention is not limited to the following embodiments.

See Figures 1 and 2. A device for extracting an impacted mandibular tooth germ, comprising a cylinder body 1, a connecting part 2, a rod part 3, saw teeth 4, an opening 5, a limiting part 6, and a scale line 7, and the cylinder body 1 is cylindrical and hollow structure, its inner diameter range is set to 6-12mm, the end surface of the cylinder 1 is provided with sawtooth 4, the side wall of the cylinder 1 is provided with an opening 5, and the opening 5 runs through the other side of the cylinder 1. At one end, a circumferential scale line 7 is provided on the outside of the cylinder body 1, and the scale line 7 is used to help the operator judge the depth of bone extraction and prevent excessive cutting; the outer peripheral surface of the connecting portion 2 is protrudingly provided with a limit portion 6 , the limiting portion 6 faces outward along the radial direction of the connecting portion 2 . In addition, the limiting part 6 is located on the same side of the cylinder body 1 without opening the hole, and is used to prevent excessive cutting of the tooth germ of the mandibular impacted third molar. The cylinder body 1, the connecting part 2 and the rod part 3 are integrally formed, one end of the connecting part 2 is connected to the end of the cylinder body 1 away from the sawtooth 4, and the other end of the connecting part 2 is One end is connected to the rod part 3 .

See Figure 3. A bayonet 8 is provided at the end of the rod part 3 away from the connecting part, and the bayonet 8 is set as an international standard (ISO 6360) bayonet, and the bayonet 8 is used for clamping with the dental implant bending head.

A method of using the device for extracting the mandibular impacted tooth germ of the utility model is as follows:

Through the bayonet 8 and the dental implant bending head, the power system is turned on. The top of the cylindrical hollow body is the sawtooth 4, so that the device is rotated. The sawtooth 4 drills forward into the bone of the mandibular tooth germ, which can be judged according to the scale 7. Drilling depth, cylinder body 1 contains a section of cylindrical bone, at this time quickly pull out the trephine, generally the distal end of the cylindrical bone can be pulled off, thereby taking out the bone from the side wall opening 5.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. It should be regarded as the protection scope of the present utility model.

Claims (6)

1. A device for extracting an impacted mandibular tooth germ, characterized in that the device comprises a cylinder, a connecting portion and a rod, and the two ends of the connecting portion are respectively connected to the cylinder and the rod part, wherein the cylinder is a hollow structure, one end surface of the cylinder is provided with sawtooth, and an opening is arranged in the axial direction on the side wall of the cylinder, and the opening runs through the other end of the cylinder; A limiting portion is provided on an outer peripheral surface of the connecting portion, and the limiting portion protrudes outward along a radial direction of the connecting portion. 2 . The device for extracting an impacted mandibular tooth germ according to claim 1 , wherein the cylindrical body, the connecting portion and the rod portion are of an integral structure. 3 . 3 . The device for extracting an impacted mandibular tooth germ according to claim 1 , wherein a scale line is provided on the outer side of the cylinder. 4 . 4 . The device for extracting an impacted mandibular tooth germ according to claim 1 , wherein the cylinder body is cylindrical, and its inner diameter ranges from 6 to 12 mm. 5. A device for extracting an impacted mandibular tooth germ according to claim 1, characterized in that, the rod portion is provided with a bayonet at the end far away from the connecting portion, and the bayonet is used for bayonet Connect to the dental implant elbow. 6 . The device for extracting an impacted mandibular tooth germ according to claim 1 , wherein the stopper is located on the same side of the side wall of the cylinder without openings. 7 .