CN107440806A - A kind of department of stomatology Special medical equipment - Google Patents

Abstract

The invention discloses a special medical instrument for the department of stomatology, which comprises a base, a support frame is installed on the base, an installation groove is arranged in the middle of the top frame of the support frame, traction belts are fixedly connected to both ends of the top frame of the support frame, The left frame of the support frame is connected with a tooth lift through a spring connecting wire, the right frame of the support frame is connected with an opening aid through a silk thread, the installation groove is connected with a flashlight through a flashlight frame, and two sleeves are connected at the bottom of the traction belt. There is a schoolbag buckle connected in the middle of the sleeves, and the tails of the two sleeves are jointly connected with a chin cover. The design of the present invention makes the patient's head and mouth more relaxed when pulling teeth, The process of tooth extraction is easier and smoother. The driving device makes the cutter oscillate back and forth with high frequency and low amplitude. The patient suffers less pain, the efficiency of tooth extraction is high, and the cutter head of the tooth elevator can be easily replaced with low cost.

Description

A special medical device for stomatology

technical field

The invention relates to the technical field of tooth extraction auxiliary devices, in particular to a special medical device for stomatology.

Background technique

Surgical tooth extraction is the most basic operation in oral and maxillofacial surgery, and it is also one of the most commonly used treatment techniques. Some systemic or local diseases are treated by extracting the diseased tooth. However, surgical trauma may also cause pain, bleeding, swelling, mental stress, elevated blood pressure, and even induce cardiovascular and other diseases during tooth extraction. Therefore, oral and maxillofacial surgeons should master the professional knowledge of oral and maxillofacial surgery at the same time, fully grasp and be familiar with clinical medical knowledge, start from the body, consider comprehensively, correctly grasp tooth extraction, indications and contraindications, and master operating techniques to prevent The occurrence of various local and systemic complications.

The dental elevator is mainly used to loosen the root of the tooth. The dental elevator is composed of three parts: the beak, the bar and the handle. The dental elevator mainly plays the role of breaking the periodontal ligament and loosening the tooth root. It is inserted into the gap between the tooth root and the alveolar bone, with the alveolar ridge as the fulcrum, through the rotation and the force of wedge to the apex, the fibers of the periodontal ligament are broken and the root moves upward. According to the principles of applied mechanics and actual needs, the principle of loosening the root of the tooth is mainly designed based on the three forces of lever, axle and wedge. Type, the most commonly used in clinical work is straight. Straight: Can be used for all kinds of tooth extraction. Root erector: The erector beak is relatively slender, paired in the left and right directions, and the tappets are bent at an angle, mainly used for loosening residual roots or long broken roots. Root tip: The beak of the root is thinner, smaller and sharper than that of the root. There are left and right paired, curved tooth lifters and straight apex lifters, which are combined into a set. Clinically, it is mainly used for apical root removal. Triangular spine: It is also a pair of left and right, and the spine is a concave triangle. The beak is relatively strong and thick, and it is mainly used for extracting the roots of mandibular molars, loosening mandibular molars or removing alveolar mediastinum, etc. Bartholin's Elevator: The protruding beak is concave, and the teeth are curved at an angle, and the left and right are opposite. It is mainly used for the extraction of the maxillary third molars.

The patent application number is 200710122866.X and the name is Tooth Extraction Aid. This invention uses the high-frequency oscillation of ultrasonic waves to drive the high-frequency movement of the cutter back and forth. When it is used to extract the tooth root, it can not only preserve the soft tissue of the gums and reduce the fatigue of the doctor's wrist, It can also cut off the gum fiber and the periodontal ligament of the tooth neck quickly, causing the residual root of the tooth to loosen, and the tooth root can be easily pulled out without destroying the alveolar bone plate, which is suitable for immediate implant reconstruction. dental area. Although this invention utilizes cutters of multiple shapes to cut and pry teeth of different shapes and different parts, but because each cutter and the cutter seat of the teether are matched, changing the cutter every time is equivalent to changing the whole teether. The cost is increased, and when changing the toothbrush, it is necessary to disconnect the connection between the toothbrush and the ultrasonic mobile phone and then reconnect it, which takes a lot of time.

There are also the following deficiencies and problems in the existing tooth extraction aids:

(1) When a dentist extracts a tooth for a patient, usually the patient is sitting or lying down. It is difficult to keep the head up and stay still, and once the patient twists the neck, it will cause inconvenience to the tooth extraction operation, and even lead to the failure of the tooth extraction. The patient who is lying on the bed for tooth extraction will inevitably have a sore jaw after opening his mouth for a long time because there is no support for his jaw , the patient will move the jaw, making it difficult to lift the teeth and pry the teeth, and generally an external light is required to illuminate the teeth in the patient's mouth;

(2) When doctors extract teeth for patients with dental diseases, they often hold a spoon in their left hand to make the patient's mouth open, and the other hand tightly grasps the tooth extraction forceps or tooth lifter, which is inconvenient. If the mouth is opened, it will be sore and the strength will be reduced for a long time, causing the patient's mouth to shrink, and the patient is prone to shutting up or trembling gums when the pain is unbearable during tooth extraction, which may easily cause clamps or dental elevators to accidentally injure the patient's gums , lips or cheeks;

(3) When the existing doctors use the tooth lifter to pry and loosen the tooth root of the patient, they usually use the strength of the hand, which is laborious, and it is difficult to control the force. If the force is too small, the tooth root cannot be pried, and it is time-consuming Longer, it is a torment for both the patient and the doctor. Excessive force will cause the tip of the tooth lift to poke the gums, cheeks or tongue and bleed, and some hard-to-pry tooth roots are also hit with a hammer. The root of the tooth will be loosened by straightening, which will bring bad feelings to the patient. Some patients may even feel dizzy and buzzing in both ears. The recovery time after surgery is greatly lengthened, and the gums can hardly return to their original healthy state.

Contents of the invention

In order to overcome the shortcomings of the existing technical solutions, the present invention provides a special medical device for stomatology. The present invention makes the patient's head and mouth more relaxed, and the process of tooth extraction is easier and smoother. The cutter moves back and forth with high frequency and low amplitude Oscillation, less pain for patients, high efficiency of assisted tooth extraction, easy replacement of the cutter head of the tooth lifter, low cost, and can effectively solve the problems raised by the background technology.

The technical solution adopted by the present invention to solve the technical problem is: a special medical instrument for stomatology, including a base, a support frame is installed on the base, a mounting groove is arranged in the middle of the top frame of the support frame, and a mounting groove is arranged in the mounting groove A flashlight stand, the two ends of the top frame of the support frame are fixedly connected with a traction belt, the support frame is connected with a tooth lift through a spring connection line, the installation groove is connected with a flashlight through the flashlight stand, and two are connected at the bottom of the traction belt. The two sleeves are connected with a schoolbag buckle in the middle, and the tails of the two sleeves are jointly connected with a chin cover; the teeth stand includes a shell, and the shell is provided with an installation space and a track, and the installation space and The track is connected, and a high-speed motor is installed in the installation space. The high-speed motor is connected with an elliptical block through the motor shaft. slot, a tool is inserted in the threaded slot.

Further, a cylindrical block is fixedly installed at the tail of the tool holder, the left end and the right end of the spring are respectively connected to the right side of the cylindrical block and the right side of the installation space, and an external thread is provided at the tail of the tool, and the external thread can be connected with the thread of the thread groove. Rotate together.

As for the special medical instrument for stomatology, the section shape of the end of the support frame is inverted, and the support frame is provided with a tooth lifter sleeve, and the tooth lifter is inserted into the tooth lifter set.

For the above-mentioned special medical instrument for stomatology, the cross-sectional shape of the installation groove is rectangular, rubber blocks are installed on both sides of the installation groove, and the flashlight holder is composed of a circular frame and a rotating shaft fixed on both sides of the circular frame. The rubber block squeezes the ring frame, and the flashlight can rotate around the rotation axis.

Further, the shape of the shell is conical, the track is a cylindrical track, the tool seat is a cylindrical structure, and the inner diameter of the track is slightly larger than the outer diameter of the tool seat.

Preferably, the shape of the bottom surface of the elliptical block is egg-shaped with a large arc at one end and a small arc at the other end, and the side of the cylindrical block is in contact with the side of the elliptical block.

Compared with prior art, the beneficial effect of the present invention is:

The invention can easily focus on the extraction site of the patient's mouth through the rotation of the flashlight on the support frame, making the extraction easier and saving costs. The head of the patient who needs to be extracted is fixed by the traction belt, and the patient's chin is supported by the chin cover and limit, so that the patient does not need to deliberately keep the head up posture, and the patient's jaw is more relaxed, and the tooth extraction process is smoother;

The invention uses a high-speed motor to drive the elliptical block to rotate, so that the knife seat drives the knife to oscillate back and forth with high frequency and low amplitude, so that it is easier to lift the teeth and loosen the root of the tooth, the patient has less pain, and the lifting time is short, assisting tooth extraction The efficiency is high, and the way of thread engagement between the tool holder and the tool makes the replacement of the tool holder simpler, faster and at low cost.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the front structure of the tooth lift of the present invention;

Fig. 3 is a schematic view of the top view structure of the tooth lift of the present invention;

Fig. 4 is a schematic structural view of the opening assist device of the present invention;

Fig. 5 is a schematic diagram of the installation of the rotating frame of the present invention.

In the figure: 1-base; 2-support frame; 3-installation groove; 4-traction belt; 401-sleeve belt; 402-schoolbag buckle; 403-chin cover; 404-flexible filling layer; - Tooth lifter; 601-shell; 602-installation space; 603-track; 604-high-speed motor; 605-ellipse block; 606-knife seat; 607-cylindrical block; 611-external thread; 612-tooth sleeve; 7-silk thread; 8-opening aid; 801-cylindrical mount; 802-axle; 803-gear; 804-fixed shaft; 805-fixed pulley; 807-support rod; 808-lip cover; 809-supporting bracket; 810-locking rod; 811-adjusting rod; 812-rubber ball; shaft; 10-rubber block.

detailed description

As shown in Figure 1, the present invention provides a special medical instrument for stomatology, including a base 1, the base 1 is rectangular in shape, more stable, and the four corners of the base 1 are also equipped with mounting holes, and the base can be installed on the workbench with bolts or other devices. A support frame 2 is installed on the base 1, and the cross-sectional shape of the end of the support frame 2 is inverted, which is conducive to better installation of the tooth extraction auxiliary device. The middle of the top frame of the support frame 2 is provided with an installation groove 3, The installation groove 3 is connected with a flashlight 901 through the flashlight frame 9, and the bulb of the flashlight 901 adopts a bulb with a strong light-gathering ability, so that the light shining on the patient's oral cavity will not be scattered, and the situation in the oral cavity is clearer and brighter. The top section of the installation groove 3 is rectangular in shape, so that the flashlight 901 has a rotatable range. The frame 9 is composed of a ring frame 902 and a rotating shaft 903. During actual use, the rubber block 10 is pressed against the ring frame 902 so that the flashlight 901 can rotate around the rotating shaft 903, and the rotating shaft 903 is inserted into the side of the rubber block 10 When the flashlight 901 is precisely aimed at the mouth of a dental patient, the flashlight 901 often needs to be rotated to a certain optimal angle, and it needs to be positioned after the rotation. Therefore, the rubber block 10 squeezes the ring frame 902 to make the gap between the two The frictional force between them is enough to offset the rotational restoring force of the flashlight 901, so that the flashlight 901 is limited and accurately shines into the patient's mouth. Through the rotation of the flashlight 901 on the support frame 2, the tooth extraction site in the patient's mouth can be easily focused, and the tooth extraction is easier and the cost is saved.

As shown in Figure 1, the two ends of the top frame of the support frame 2 are fixedly connected with a traction belt 4, the section shape of the 4 ends of the traction belt is U-shaped, and the two ends of the U-shaped traction belt 4 are installed on the top frame of the support frame 2 and the traction belt 4 is symmetrical about the vertical center line of the support frame 2. The U-shaped design of the traction belt 4 facilitates the fixing of the human head. The traction belt 4 is provided with a sleeve belt 401, a schoolbag buckle 402 and a chin Cover 403, the traction belt 4 and the chin cover 403 are all provided with a flexible filling layer 404, and the flexible filling layer 404 is filled with materials such as cotton, sponge, plastic net, etc. When the traction belt 4 supports the patient's head, the flexible filling Layer 404 is not only soft but also breathable, which can bring more comfortable enjoyment to the patient, and can make the patient maintain a more relaxed posture during tooth extraction. In addition, for hygiene, the traction belt 4 is preferably cleaned or replaced frequently, so as to avoid a certain patient's headache. Infection of local diseases to other people, in order to further make the traction belt 4 suitable for more people, and make the flashlight 901 closer to the patient's mouth, a lifting device can be set at the junction of the traction belt 4 and the support frame 2, so that the traction belt 4 It can be raised and lowered, so that the traction belt 4 has wider applicability, and the flashlight 901 can search clearly and the line of sight is clearer.

As shown in Figure 1, two straps 401 are connected to the bottom of the traction belt 4, and a schoolbag buckle 402 is connected in the middle of the straps 401. The schoolbag buckle 402 can make the length of the strap 401 adjustable, so that more head-shaped All patients can wear the chin cover 401, so that more people's chins can be fixed by the chin cover 403. The two ends of the chin cover 401 are connected to the two ends of the chin cover 403. The cover 401 has certain elasticity. When the chin cover 403 touches the chin, the pressure on the chin will not be too great. After the patient first stabilizes the head on the traction belt 4, move the cover 401 and the chin cover 403 from directly above the patient's face, and then put the chin cover 403 Put it on the patient's chin, grasp the schoolbag buckle 402 with one hand, and grasp the strap 401 with the other to shorten the length of the strap 401, so that the chin cover 403 is more stably fixed on the patient's chin. The head of the patient who needs tooth extraction is fixed by the traction belt 4, and the patient's chin is supported and limited by using the chin cover 403, so that the patient does not need to deliberately keep the head up posture, and the patient's chin is more relaxed, and the tooth extraction process is smoother.

As shown in Figures 1 and 2, the left frame of the support frame 2 is connected with a tooth lifter 6 through a spring connecting line 5. The design of the spring connecting line 5 makes the stretchable distance of the tooth lifter 6 longer, and prevents the tooth lifter 6 from Lost, the left frame of the support frame 2 is equipped with a tooth lifter sleeve 612, the shape of the tooth lifter sleeve 612 is circular, the shape of the shell 601 is conical, and the tail of the shell 601 is connected to the spring connecting line 5, so that the tooth lifter 6 It can be inserted upside down in the tooth lifter 612, the tooth lifter 6 is inserted in the tooth lifter 612, the conical shell 601 is inserted into the tooth lifter 612 head down, and the tooth lifter 6 is inserted into the tooth lifter 6 when not in use. Standing set 612, easy to carry, save space, easy to put and carry. The tooth lifter 6 includes a housing 601, the housing 601 is provided with an installation space 602 and a track 603, the installation space 602 communicates with the track 603, the installation space 602 is equipped with a high-speed motor 604, and the track 603 is installed There is a tool seat 606, the track 603 is a cylindrical track, the tool seat 606 is a cylindrical structure, the diameter of the track 603 is slightly larger than the outer diameter of the tool seat 606, the tool seat 606 is inserted into the track 603, and the track 603 makes the tool seat 606 will not displace too much up and down or forward and backward when moving along the axial direction of track 603 and vibrating at high speed, so that the transmission ratio of high-speed motor 604 is higher. Track 603 plays the role of limiting the range of motion of tool holder 606 here. The friction between the seat 606 and the inner wall of the track 603 is too large and the casing 601 generates too much heat. A wear-resistant and smooth ceramic layer can be coated on the inner wall of the track 603 to make the track 603 smoother, more wear-resistant, and have a fast heat dissipation Efficacy, kill three birds with one stone.

As shown in Figure 3, the high-speed motor 604 is connected with an elliptical block 605 through the motor shaft. Here, the high-speed motor 604 is used to enable the cutter 610 to oscillate at a high frequency, and the high-speed motor 604 is small in size and easy to install. The tail of the knife holder 606 is fixed. A cylindrical block 607 is installed, and the shape of the bottom surface of the elliptical block 605 is egg-shaped with a large arc at one end and a small arc at the other end. The side of the cylindrical block 607 is attached to the side of the elliptical block 605. When the block 607 is attached, the cylindrical block 607 does not move. When the elliptical block 605 rotates to the side with a small arc and contacts with the cylindrical block 607, the elliptical block 605 pushes the cylindrical block 607 to displace so that the cutter 610 is displaced.

As shown in Figure 2, the outside of the knife seat 606 is covered with a spring 608, the spring 608 has a strong elastic recovery force and a fast recovery speed. Connect the right side of the cylindrical block 607 and the right side of the installation space 602. The principle of cooperation between the spring 608 and the driving device here is: when the high-speed motor 604 rotates to make the side with a large arc of the elliptical block 605 contact the side of the cylindrical block 607, the spring 608 remains in its original state , the tool 610 does not extend forward, when the elliptical block 605 rotates so that the side with a small arc contacts the cylindrical block 607, the sharper end of the elliptical block 605 touches the cylindrical block 607 to make the cylindrical block 607 translate to the left, so that the tool 610 is extended forward, Simultaneously the spring 608 compresses and accumulates momentum, when the elliptical block 605 rotates again to the side with a large arc and contacts the cylindrical block 607, the compressive force of the spring 608 releases quickly, and the cutter 610 retracts, because the motor is a high-speed motor 604, and the speed is very high. Fast, the recovery speed of the spring 608 is also very fast, so the high-frequency, low-amplitude oscillation of the cutter 610 is facilitated, and the patient's teeth can be easily pried and vibrated loosely. A cutter 610 is inserted in the thread groove 609, and the tail of the cutter 610 is provided with an external thread 611, and the external thread 611 engages with the thread of the thread groove 609, and the cutter 610 and the knife seat 606 are engaged with a screw-nut The way of connecting together makes the replacement of the cutting tool 610 easier and faster, saving time and cost. Of course, several different cutting tools 610 have to be processed before, but although the shapes of the cutting heads of the cutting tools 610 are different, the external threads 611 of the cutting tools 610 are all Same, make cutter 610 can pry, very loose the teeth of various shapes, each position, applicability is wider, certainly, each cutter 610 screwed in the threaded groove 609 in the cutter holder 606 all will be screwed to the maximum. The bottom end prevents the cutter 610 from loosening when it vibrates at a high speed, thereby affecting the tooth extraction process and speed.

The working process of the tooth lifter 6 is as follows: the high-speed motor 604 drives the elliptical block 605 to rotate so that the knife seat 606 drives the cutter 610 to oscillate back and forth with high frequency and low amplitude, so that the tooth lifter 6 pries and loosens the teeth more easily, and the patient suffers from pain. Less, and the prying time is short, the auxiliary tooth extraction efficiency is high, and the way of thread engagement between the knife seat 606 and the cutter 610 makes the replacement of the knife seat simpler, faster, and low in cost.

As shown in Figure 4, the right frame of the support frame 2 is connected with an opening aid 8 through a silk thread 7. The function of the silk thread 7 is also to prevent loss. Inside, the opening aid 8 includes two cylindrical mounting bases 801 and two lip sleeves 808, a rotating frame 806 is connected between the two lip sleeves 808, and the outer side of the cylindrical mounting bases 801 is connected to the wire 7, which will not affect the opening assistance. The adjustment of the device 8, two intermeshing gears 803 are installed in the cylindrical mounting seat 801 on the left side through the wheel shaft 802, and a locking lever 810 is installed on the side of the cylindrical mounting seat 801 on the left side. The head of the rod 810 is stuck in the tooth groove of the gear 803, and the gear 803 is rotated on the adjustment rod 811 so that the distance between the two lip sleeves 808 is fixed, and the size of the opening of the person is also fixed. The head of 810 pushes into the tooth groove of gear 803, so that the whole opening assistant 8 is fixed. The gear 803 rotates synchronously with the wheel shaft 802, and one end of the wheel shaft 802 is fixedly connected with an adjustment rod 811, and the adjustment rod 811 passes through the outer end surface of the cylindrical mounting seat 801, and the fixed pulley 805 rotates around the fixed shaft 804. Before the doctor puts the opening aid 8 in the patient's mouth, he first rotates the manual adjustment lever 811 to drive the wheel shaft 802 and the gear 803 to rotate, so that an appropriate angle is opened between the upper and lower rotating frames 806, and the specific angle depends on different patients. The size of the mouth is determined, and after a certain angle of rotation, the opening aid 8 is fixed by the locking rod 810 .

As shown in Figure 4 and Figure 5, two fixed pulleys 805 are installed in the cylindrical mounting seat 801 on the right through a fixed shaft 804, and the two cylindrical mounting seats 801 are fixedly connected by a connecting rod to ensure that the entire opening is assisted. The stability of device, described gear 803 and fixed pulley 805 outer sides are all fixedly connected with swivel frame 806, and fixed pulley 805 diameter is identical with gear 803 diameter, and the effect of fixed pulley 805 is that fixed pulley 805 also rotates when gear 803 rotates, Make the four rotating frames 806 rotate evenly, and a support rod 807 is installed on the outside of the rotating frame 806, and the support rod 807 and the rotating frame 806 are connected together in a manner of screw-nut engagement, so that the height of the supporting rod 807 It can be easily adjusted. The top of the support rod 807 is fixedly connected with a rubber ball 812. The rubber ball 812 needs to be sterilized before the operation and is harmless to the human body. tooth, then rotate the support rod 807 to make the height of the support rod 807 higher, so that the rubber ball 812 can lift the patient's cheeks, and the field of vision in the oral cavity is wider, which is convenient for the doctor to extract teeth better.

As shown in Figures 1 and 4, a lip cover 808 is fixedly installed on the top of the rotating frame 806, where the lip cover 808 is relatively hard outside, and one lip cover 808 connects two rotating frames 806, so that the rotating frame 806 will not be separated, and more Stable, so that the lip cover 808 will not be deformed when supporting the lips, and the lip cover 808 adapts to the shape of the lips. If the patient's mouth shape is not suitable, just replace another new lip cover 808. The inside of the lip cover 808 and the lips The place of contact is filled with flexible objects, such as sponges, water bags, etc., to make people's lips more comfortable, and will not feel uncomfortable or break the mouth skin due to the long-term support of the lip cover 808. The right frame of the support frame 2 is equipped with a support frame 809, the opening assistant 8 is placed on the support bracket 809, the gear 803 of the opening assistant 8 or the two rotating frames 806 on the side of the fixed pulley 805 form a bracket angle that can be placed, and the bracket that can be placed is placed on On the support bracket 809. The mouth opening aid 8 uses the adjustment rod 811 to control the rotation of the wheel shaft so that the distance between the upper and lower lip covers 808 can be changed, so that the opening degree of the patient's mouth can be adjusted. It is easier to open the mouth, and the patient will not shut up easily due to pain, and the design of the support rod 807 can also open the patient's cheeks well, and the field of vision is wider, making it easier and smoother for the doctor to extract the patient's tooth.

In order to better understand the present invention, the use process and working principle of the present invention are now introduced in detail as follows:

(1) Before the doctor extracts the teeth of the patient with dental disease, he first confirms that the traction belt 4, the tooth lifter 6, the silk thread 7 and the opening aid 8 are clean medical devices that have been sterilized, and then fixes the base 1 on the head of the bed so that The patient lies on the bed, and the back of the patient's head is placed on the traction belt 4 .

(2) Rotate the adjustment rod 811 to rotate the rotating frame 806 to a suitable angle, so that the distance between the upper and lower lip sleeves 808 is fixed, and insert the head of the locking rod 810 into the tooth groove of the gear 803, so that the opening size of the opener is fixed , then rotate the support rod 807 to fine-tune the height of the support rod 807, and then carefully insert the opening aid 8 into the patient's mouth, so that the lip cover 808 is aligned with the patient's lips, and the rubber ball 812 withstands the patient's cheek, so that the patient's mouth is opened. Doctors have a wider field of vision.

(3) Put the chin cover 403 on the patient's chin, pull the cover belt 401 and the schoolbag buckle 402 to tighten the cover belt 401, so that the chin cover 403 is covered on the patient's chin, so that the patient's head is supported, The patient's body is relaxed, then turn on the flashlight 901, and rotate the flashlight 901 so that the light of the flashlight 901 just hits the patient's oral cavity. It is better to make the search light shine directly on the position where the patient needs to extract the tooth, which is more convenient. Tooth extraction, the flashlight 901 is automatically fixed after rotation.

(4) First observe the shape and size of the patient's teeth, then select a suitable cutter 610, install the selected cutter 610 on the cutter holder 606, tighten and fix it, then turn on the power to rotate the high-speed motor 604, and the elastic force of the spring 608 accelerates The drive of the motor 604 is then transmitted through the elliptical block 605-cylindrical block 607-knife holder 606 to make the cutter 610 vibrate at high frequency and low amplitude. The patient's teeth are easier to pull out, and after the prying is complete, just use the tooth extraction forceps to pull out the bad tooth.

The invention can easily focus on the extraction site of the patient's mouth through the rotation of the flashlight on the support frame, making the extraction easier and saving costs. The head of the patient who needs to be extracted is fixed by the traction belt, and the patient's chin is supported by the chin cover and limit the position, so that the patient does not need to deliberately keep the head up posture, and the patient's jaw is more relaxed, and the tooth extraction process is smoother; the opening aid of the present invention uses the adjustment rod to control the rotation of the wheel shaft so that the distance between the upper and lower lip cuffs can be changed. The opening degree of the patient's mouth can be adjusted, and the lip cover can easily support the lips, making it easier for dental patients to open their mouths during tooth extraction. It is well stretched, the field of view is wider, and it is easier and smoother for the doctor to extract the patient's tooth; the invention drives the elliptical block to rotate through a high-speed motor so that the knife seat drives the knife to vibrate back and forth with high frequency and low amplitude, so that the tooth It is easier to pry teeth and loosen the roots, less pain for patients, and the prying time is short, the efficiency of assisted tooth extraction is high, and the way of thread engagement between the knife holder and the knife makes the replacement of the knife holder simpler, faster and lower in cost.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. a kind of department of stomatology Special medical equipment, including base (1), it is characterised in that：Support frame is installed on base (1) (2) mounting groove (3), is provided among the upper frame of support frame (2), torch frame (9), the support are provided with mounting groove (3) Frame (2) upper frame both ends are fixedly connected with leash (4), and support frame as described above (2) is connected with dental elevator (6) by spring connecting line (5), The mounting groove (3) is connected with flashlight (901) by torch frame (9), and leash (4) bottom is connected with two cuffs (401) Schoolbag fastener (402), is connected among two cuffs (401), cuff (401) afterbody described in two is connected with down jointly Bar set (403)；The dental elevator (6) includes shell (601), and installing space (602) and track are provided with the shell (601) (603), the installing space (602) is connected with track (603), and high-speed electric expreess locomotive is provided with the installing space (602) (604), the high-speed electric expreess locomotive (604) is connected with oval block (605) by motor shaft, and tool rest is provided with the track (603) (606) spring (608), is cased with the outside of tool rest (606), thread groove (609) is provided with tool rest (606) head, in thread groove (609) cutter (610) is inserted with.

A kind of 2. department of stomatology Special medical equipment according to claim 1, it is characterised in that：Tool rest (606) afterbody Cylindrical piece (607) is installed with, spring (608) left end and right-hand member difference connecting cylinder block (607) right side and installation are empty Between on the right side of (602), be provided with external screw thread (611) in cutter (610) afterbody, the external screw thread (611) can be with the spiral shell of thread groove (609) Line mutually screws.

A kind of 3. department of stomatology Special medical equipment according to claim 1, it is characterised in that：Cut open at support frame as described above (2) end Face is shaped as the shape of falling Qian, and dental elevator set (612) is provided with support frame as described above (2), and the dental elevator (6) is inserted in dental elevator set (612).

A kind of 4. department of stomatology Special medical equipment according to claim 1, it is characterised in that：Mounting groove (3) are cutd open Face is shaped as rectangle, and mounting groove (3) both sides are provided with block rubber (10), and the torch frame (9) is by annulus frame (902) and admittedly Rotary shaft (903) due to annulus frame (902) both sides forms, block rubber (10) the extruding annulus frame (902), the flashlight (901) can be rotated around rotary shaft (903).

A kind of 5. department of stomatology Special medical equipment according to claim 1, it is characterised in that：Shell (601) shape For cone, the track (603) is cylindrical tracks, and the tool rest (606) is cylindrical structure, the track (603) Internal diameter size is bigger than the outside dimension of tool rest (606).

A kind of 6. department of stomatology Special medical equipment according to claim 2, it is characterised in that：Oval block (605) bottom Face is shaped as the egg shape that one end radian is big, other end radian is small, cylindrical piece (607) side and oval block (605) side It is affixed.