Dental fixture and method for autologous tooth transplantation or replantation

Abstract

The present invention belongs to the technical field of medical devices, and in particular relates to a tooth fixing device and method for autologous tooth transplantation or replantation, comprising a clamping device and a storage bag. The ex vivo tooth is immersed in a Hank's balanced salt solution in the storage bag, and the ex vivo tooth is fixed upside down in the clamping device through the storage bag. During the process of fixing the ex vivo tooth and operating the tooth root of the ex vivo tooth, the ex vivo tooth is always in the Hank's balanced salt solution, so that the ex vivo tooth is placed in a sterile environment, the activity of the periodontal membrane is maintained to the greatest extent possible, and the root surface is kept clean to prevent the adhesion of gutta-percha and debris, thereby improving the success rate of tooth transplantation and tooth replantation.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a tooth fixing device and method for autologous tooth transplantation or replantation. Background Art

[0002] During the autologous tooth transplantation or intentional replantation surgery, the tooth needs to be extracted first, and the root is processed in vitro before being implanted back into the extraction socket. When processing the root in vitro, the crown needs to be fixed, with the crown facing down and the root facing up, and then the root is cut, prepared and filled. The fixation of the crown is particularly important. It not only needs to be clamped stably, but also must not damage the root and periodontal ligament tissue. The currently used fixation methods are: use extraction forceps to clamp the crown of the tooth, or wrap the crown with gauze moistened with saline and hold it with your hands;

[0003] Use extraction forceps to clamp the crown of the tooth, or wrap the crown with gauze moistened with saline and hold it with your hands. Both of these fixation methods are unstable and may cause the tooth to slip during clinical operation, making it impossible to re-implant the tooth. At the same time, both extraction forceps and gauze will inevitably touch the periodontal membrane of the excised tooth, and the tooth is operated in a state without liquid immersion, which may damage the activity of the periodontal membrane. In addition, for treated teeth, during the preparation process, the gutta-percha debris and dentin debris in the root canal adhere to the root surface and are difficult to remove, affecting healing. Summary of the Invention

[0004] The object of the present invention is to provide a tooth fixing device and method for autogenous tooth transplantation or replantation to solve the problems in the prior art. The specific technical solutions are as follows:

[0005] A tooth fixing device for autologous tooth transplantation or replantation comprises a clamping device and a preservation bag. The ex vivo tooth is immersed in Hank's balanced salt solution in the preservation bag and is fixed upside down in the clamping device through the preservation bag.

[0006] Furthermore, the clamping device is unfolded through a hinge at one end, and the ex vivo tooth is placed upside down in the clamping device through the preservation bag. After the clamping device is buckled, the crown of the ex vivo tooth is fixed inside the clamping device, and the root of the ex vivo tooth is located on the upper side of the clamping device.

[0007] Furthermore, the clamping device includes a left clamping plate and a right clamping plate, one end of the left clamping plate is connected to the right clamping plate by a hinge, and the other end of the left clamping plate is connected to the right clamping plate by a locking component, and a semicircular receiving groove is provided in the middle position of the left clamping plate and the right clamping plate, and a rubber pad is fitted on the inner wall of the semicircular receiving groove. The ex vivo tooth is fixed inverted between the left clamping plate and the right clamping plate through the preservation bag, and the ex vivo tooth is located in the circular receiving groove formed by the combination of the two semicircular receiving grooves.

[0008] Furthermore, the locking component includes a locking rod, one end of which rotates in the left clamping plate, and a barrel rod is fixed to the other end of the locking rod. The end of the barrel rod is threadedly connected to the adjusting rod, and the front end of the adjusting rod is rotatably connected to the sliding column. The sliding column slides in the barrel rod, and a screw is slidably connected in the barrel rod. A spring is provided between the sliding column and the screw, a notch is provided on the side of the barrel rod, and the screw is threadedly connected to the fastening nut. A boss is fixed to the end of the right clamping plate, and the front end of the fastening nut rests on the boss.

[0009] Furthermore, the upper ends of the left and right clamping plates are both provided with bag opening components. On the left clamping plate, the bag opening component includes two slides, and the two slides slide on the upper end of the left clamping plate. Springs are provided between the lower ends of the two slides and the left clamping plate. The upper ends of the slides are rotatably connected to a gear rod, and the slide is slidably connected to the gear rod. The gear rod cooperates with the support rod gear for transmission, and the support rod is made of transparent acrylic material.

[0010] Furthermore, both slides are rotatably connected to the pull rod, the middle position of the pull rod is clamped on the clamping block, and the clamping block is fixed on the side of the left clamping plate.

[0011] Furthermore, the sides of the left clamping plate and the right clamping plate are provided with plug-in grooves, and the left clamping plate is provided with a semicircular groove. The left clamping plate is rotatably connected to the rotating rod, and the rotating rod is provided with a semicircular protrusion and a pointer. After the adjusting device is plugged into the plug-in groove, the semicircular protrusion is clamped in the adjusting device, and the front end of the pointer faces upward.

[0012] Furthermore, the storage bag includes a storage bag body, an upper opening of the storage bag body is connected to a threaded portion, an upper opening of the threaded portion is sealed by a cover thread, and Hank's balanced salt solution is stored in the storage bag body;

[0013] The outer wall of the storage bag body is provided with four hanging buckles, and the upper side of the hanging buckles is provided with dotted lines. The storage bag body, the hanging buckles and the threaded part are all made of transparent plastic material. The storage bag body and the hanging buckles are all made of soft and thin plastic material, and the threaded part is made of hard plastic.

[0014] Furthermore, an adjusting device is provided at the lower ends of the left clamping plate and the right clamping plate, and the adjusting device includes a support frame, the support frame is inserted into the plug-in slot, and the semicircular protrusion is clamped in the semicircular groove 2 set on the support frame. The lower end of the support frame is rotatably connected to the upper rotating frame, and the side of the upper rotating frame is threadedly connected with a fastening screw, and the front end of the fastening screw is against the support frame. The upper rotating frame is rotatably connected to both ends of the connecting member, and the other two ends of the connecting member are rotatably connected to the upper end of the lower rotating frame. A bevel gear is fixed at the lower end of the lower rotating frame, and the bevel gear is meshed with the gear at one end of the bevel gear rod for transmission. The other end of the bevel gear rod is rotatably fixed with gear 1, and the bevel gear rod is rotatably connected to the outer casing.

[0015] Furthermore, the gear 1 and the gear 2 are meshed for transmission, the gear 2 is rotatably connected to the outer shell, the gear 2 is fixedly connected to the knob, the upper rotating frame is rotatably connected to one end of the support plate 1, the other end of the support plate 1 is fixed on the slider, the slider slides in a slide groove provided on the outer shell, an operating button is provided on the outside of the slide groove, the lower rotating frame is rotatably connected to one end of the support plate 2, the other end of the support plate 2 is fixed on the inner wall of the outer shell, the outer shell is threadedly connected to the lower ends of the four support screws, the upper ends of the four support screws are rotatably connected to the support platform, a long slot is provided in the middle position of the support platform, and the upper rotating frame extends out of the long slot.

[0016] A tooth fixing method for autogenous tooth transplantation or replantation, applicable to any of the above-mentioned tooth fixing devices for autogenous tooth transplantation or replantation, comprises the following steps:

[0017] S1. Remove the cap on the threaded portion by rotating it, place the ex vivo tooth through the threaded portion into the storage bag body, and soak the ex vivo tooth in Hank's balanced salt solution in the storage bag body;

[0018] S2. The ex vivo tooth is placed between the left and right clamping plates through the storage bag body, and is locked by the locking member to fix the ex vivo tooth upside down in the circular receiving groove;

[0019] S3. Cut the storage bag along the dotted line to operate on the root of the isolated tooth and change the angle of the isolated tooth through the adjustment device.

[0020] The advantages of the present invention are:

[0021] 1. During the process of fixing the ex vivo tooth and operating the tooth root, the ex vivo tooth is always in Hank's balanced salt solution, so that the ex vivo tooth is in a sterile environment, and the activity of the periodontal membrane is maintained to the greatest extent possible, and the root surface is kept clean to prevent the adhesion of gutta-percha and debris, thereby improving the success rate of tooth transplantation and tooth replantation.

[0022] 2. The clamping device can accurately and stably clamp the crown of the isolated tooth, avoiding contact with the periodontal membrane of the isolated tooth 4 and causing damage to the periodontal membrane.

[0023] 3. When performing operations such as resection, back preparation, and back filling on the root of the ex vivo tooth, the ex vivo tooth can be driven to rotate at multiple angles through the adjustment device, making it easier to check the details of the root surface of the ex vivo tooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 3 Schematic diagram of the clamping device structure of the present invention Figure 1 ;

[0027] Figure 4 Schematic diagram of the clamping device structure of the present invention Figure 2 ;

[0028] Figure 5 Schematic diagram of the clamping device structure of the present invention Figure 3 ;

[0029] Figure 6 for Figure 5 A partial enlarged view of the middle part;

[0030] Figure 7 Schematic diagram of the clamping device structure of the present invention Figure 4 ;

[0031] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0032] Figure 9 Schematic diagram of the clamping device structure of the present invention Figure 5 ;

[0033] Figure 10 for Figure 9 A partial enlarged view of point C in the middle;

[0034] Figure 11 This is a schematic diagram of the storage bag structure of the present invention;

[0035] Figure 12 Schematic diagram of the structure of the regulating device of the present invention Figure 1 ;

[0036] Figure 13 Schematic diagram of the structure of the regulating device of the present invention Figure 2 ;

[0037] Figure 14 Schematic diagram of the structure of the regulating device of the present invention Figure 3 ;

[0038] Description of the marks in the figure:

[0039] Clamping device 1; left clamping plate 101; right clamping plate 102; hinge 103; rubber pad 104; locking rod 105; cylindrical rod 106; adjusting rod 107; sliding column 108; spring 109; screw 110; notch 111; fastening nut 112; boss 113; slide 114; spring 2 115; gear rod 116; support rod 117; pull rod 118; block 119; insertion groove 120; semicircular groove 121; rotating rod 122; semicircular boss 123; pointer 124; storage bag 2; storage bag body 20 1; threaded portion 202; cover 203; hook 204; dotted line 205; adjustment device 3; support frame 301; semicircular groove 2 302; support platform 303; support screw 304; housing 305; long slot 306; upper rotating frame 307; connector 308; lower rotating frame 309; bevel gear 310; bevel gear rod 311; gear 1 312; gear 2 313; knob 314; support plate 1 315; slider 316; slide groove 317; operating button 318; support plate 2 319; fastening screw 320; isolated tooth 4. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] Example 1

[0043] like Figures 1-14 As shown, a tooth fixing device for autologous tooth transplantation or replantation includes a clamping device 1 and a preservation bag 2. The ex vivo tooth 4 is immersed in Hank's balanced salt solution in the preservation bag 2. The ex vivo tooth 4 is fixed in an inverted position in the clamping device 1 through the preservation bag 2.

[0044] The working principle of the above technical solution is as follows: Hank's balanced salt solution is stored in the preservation bag 2. The ex vivo tooth 4 is placed in the preservation bag 2 and immersed in the Hank's balanced salt solution. The Hank's balanced salt solution is a bioactive liquid, which keeps the ex vivo tooth 4 in a sterile environment and maintains the activity of the periodontal membrane to the greatest extent possible. The preservation bag 2 is a disposable transparent soft plastic bag. The ex vivo tooth 4 can be adjusted to a vertical inverted state through the preservation bag 2, that is, the crown of the ex vivo tooth 4 is located at the bottom and the root is at the top. The ex vivo tooth 4 in this state is fixed in the clamping device 1. The clamping device 1 clamps the crown of the ex vivo tooth 4 through the preservation bag 2. The upper opening of the preservation bag 2 is cut open, and the root of the ex vivo tooth 4 can be operated on.

[0045] The beneficial effects of the above technical solution are as follows: during the process of fixing the ex vivo tooth 4 and operating the tooth root of the ex vivo tooth 4, the ex vivo tooth 4 is always in Hank's balanced salt solution, so that the ex vivo tooth 4 is in a sterile environment, and the activity of the periodontal membrane is maintained to the greatest extent possible, and the root surface is kept clean, preventing the adhesion of gutta-percha and debris, thereby improving the success rate of tooth transplantation and tooth replantation;

[0046] The clamping device 1 can accurately and stably clamp the crown of the excised tooth 4 to avoid contact with the periodontal membrane of the excised tooth 4 and causing damage to the periodontal membrane.

[0047] Example 2

[0048] like Figures 1-14 As shown, the clamping device 1 is unfolded by a hinge 103 at one end thereof, and the ex vivo tooth 4 is placed upside down in the clamping device 1 through the preservation bag 2. After the clamping device 1 is buckled, the crown of the ex vivo tooth 4 is fixed inside the clamping device 1, and the root of the ex vivo tooth 4 is located on the upper side of the clamping device 1;

[0049] The clamping device 1 includes a left clamping plate 101 and a right clamping plate 102. One end of the left clamping plate 101 and the right clamping plate 102 are connected by a hinge 103, and the other end of the left clamping plate 101 and the right clamping plate 102 are connected by a locking component. A semicircular receiving groove is provided in the middle position of the left clamping plate 101 and the right clamping plate 102. The inner wall of the semicircular receiving groove is affixed with a rubber pad 104. The excised tooth 4 is inverted and fixed between the left clamping plate 101 and the right clamping plate 102 through the preservation bag 2. The excised tooth 4 is located in the circular receiving groove formed by the combination of the two semicircular receiving grooves.

[0050] The working principle of the above technical solution is as follows: With the hinge 103 as the axis, the left clamping plate 101 and the right clamping plate 102 are unfolded, and the excised tooth 4 is fixed upside down between the left clamping plate 101 and the right clamping plate 102 through the preservation bag 2. The left clamping plate 101 and the right clamping plate 102 are buckled together, and the crown of the excised tooth 4 is located in the circular receiving groove through the preservation bag 2. The inner wall of the semicircular receiving groove is affixed with a rubber pad 104. The rubber pad 104 is made of a rubber material that can be sterilized at high temperature and has a certain degree of elasticity. The rubber pad 104 can clamp the crown of the excised tooth 4 while reducing damage to the crown caused by rigid clamping.

[0051] There is a certain gap between the left clamping plate 101 and the right clamping plate 102. After the locking component is locked, the size of the circular receiving groove can be changed according to the size of the gap between the left clamping plate 101 and the right clamping plate 102 to adapt to different sizes of ex vivo teeth 4.

[0052] Example 3

[0053] like Figures 1-14 As shown, the locking component includes a locking rod 105, one end of the locking rod 105 rotates in the left clamping plate 101, and a cylindrical rod 106 is fixed to the other end of the locking rod 105. The end of the cylindrical rod 106 is threadedly connected to the adjusting rod 107, and the front end of the adjusting rod 107 is rotatably connected to the sliding column 108. The sliding column 108 slides in the cylindrical rod 106, and a screw 110 is slidably connected in the cylindrical rod 106. A spring 109 is provided between the sliding column 108 and the screw 110. A notch 111 is provided on the side of the cylindrical rod 106, and the screw 110 is threadedly connected to the fastening nut 112. A boss 113 is fixed to the end of the right clamping plate 102, and the front end of the fastening nut 112 rests on the boss 113;

[0054] The working principle of the above technical solution is as follows: the ex vivo tooth 4 is fixed in an inverted position between the left clamping plate 101 and the right clamping plate 102 through the preservation bag 2, the left clamping plate 101 and the right clamping plate 102 are buckled together, the locking rod 105 is rotated so that the screw 110 is located between the two bosses 113, and the fastening nut 112 is rotated to drive the screw 110 to slide outward inside the barrel rod 106, driving the spring 109 to be stretched, driving the end of the screw 110 to slide inside the notch 111 until the end of the screw 110 contacts the notch. When the end of the slot 111 is reached, the preset value for clamping the ex vivo tooth 4 is reached, which will not cause damage to the crown of the ex vivo tooth 4, and has sufficient clamping force to prevent the ex vivo tooth 4 from falling off. Since the clamping force comes from the tension of the spring 109, the length of the spring after extension is the distance from the end of the slide column 108 to the end of the slot 111. Therefore, the clamping force is consistent for ex vivo teeth 4 of different models and sizes, avoiding the situation where it is difficult to find a suitable clamping force or different sizes of ex vivo teeth 4 have different clamping forces.

[0055] By rotating the adjusting rod 107, the sliding column 108 is driven to slide in the cylindrical rod 106, thereby changing the distance between the end of the sliding column 108 and the end of the slot 111, and thereby changing the size of the preset value of the clamping force on the ex-vivo tooth 4 when the end of the screw rod 110 contacts the end of the slot 111. Therefore, the size of the preset value of the clamping force on the ex-vivo tooth 4 can be changed by rotating the adjusting rod 107 according to the ex-vivo tooth 4 of different ages and quality, and the adaptability is strong.

[0056] Example 4

[0057] like Figures 1-14 As shown, the upper ends of the left clamping plate 101 and the right clamping plate 102 are both provided with a bag opening component. On the left clamping plate 101, the bag opening component includes two slides 114. The two slides 114 slide on the upper end of the left clamping plate 101. A spring 115 is provided between the lower ends of the two slides 114 and the left clamping plate 101. The upper ends of the slides 114 are rotatably connected to a gear rod 116. The slides 114 are slidably connected to the gear rod 116. The gear rod 116 and the support rod 117 are gear-coordinated for transmission. The support rod 117 is made of transparent acrylic material.

[0058] The two slides 114 are both rotatably connected to the pull rod 118. The middle position of the pull rod 118 is clamped on the clamping block 119, and the clamping block 119 is fixed to the side of the left clamping plate 101.

[0059] The storage bag 2 includes a storage bag body 201, the upper end opening of the storage bag body 201 is connected to the threaded portion 202, and the upper end of the threaded portion 202 is thread-sealed by a cap 203. The storage bag body 201 stores Hank's balanced salt solution.

[0060] The outer wall of the bag body 201 is provided with four hooks 204, and the upper side of the hooks 204 is provided with a dotted line 205. The bag body 201, the hooks 204 and the threaded portion 202 are all made of transparent plastic. The bag body 201 and the hooks 204 are all made of soft and thin plastic, and the threaded portion 202 is made of hard plastic.

[0061] The working principle of the above technical solution is as follows: the lid 203 is rotated and removed from the threaded portion 202, the explanted tooth 4 is placed in the storage bag body 201, and the explanted tooth 4 is immersed in the Hank's balanced salt solution in the storage bag body 201. The explanted tooth 4 is fixed upside down between the left clamping plate 101 and the right clamping plate 102 through the bag body 201, and the storage bag body 201 is cut open at the dotted line 205 using a tool such as scissors. The upper half of the storage bag body 201, the threaded portion 202, and the lid 203 are removed, and the hook 203 on the storage bag body 201 is removed. 04 is hung on the upper end of the support rod 117, and the pull rod 118 is pulled backward, which drives the slide 114 to move backward in the left clamping plate 101, driving the spring 2 115 to be stretched, and the support rod 117 moves with the slide 114, pressing the pull rod 118 downward, so that the middle position of the pull rod 118 is clamped on the clamping block 119. The operation mode of the bag opening component on the right clamping plate 102 side is the same as that on the left clamping plate 101 side. Then, the four support rods 117 are moved in opposite directions to open the upper opening of the storage bag body 201, making it easier to process the root of the excised tooth 4.

[0062] By rotating the gear rod 116, the support rod 117 is driven to rise or fall in the slide 114, thereby changing the distance between the upper end of the support rod 117 and the upper surface of the left clamping plate 101, and thus changing the height of the opening of the preservation bag body 201. The height of the opening of the preservation bag body 201 can be changed according to the size and height of the roots of different isolated teeth 4, so that the roots are always immersed in Hank's balanced salt solution, and the opening of the bag body 201 will not be too high to hinder external equipment from operating on the roots.

[0063] Example 5

[0064] like Figures 1-14 As shown, the left clamping plate 101 and the right clamping plate 102 are both provided with a plug-in groove 120 on their sides, and a semicircular groove 121 is provided on the left clamping plate 101. The left clamping plate 101 is rotatably connected to a rotating rod 122. The rotating rod 122 is provided with a semicircular protrusion 123 and a pointer 124. After the adjustment device 3 is inserted into the plug-in groove 120, the semicircular protrusion 123 is clamped in the adjustment device 3, and the front end of the pointer 124 faces upward;

[0065] When the cam 312 is in the unlock position, the spring 320 is in the unlock position, and the spring 320 is in the unlock position, so that the cam 312 is locked and the winch 305 is unlocked.

[0066] The gear 1 312 is meshed with the gear 2 313 for transmission, the gear 2 313 is rotatably connected to the housing 305, the gear 2 313 is fixedly connected to the knob 314, the upper rotating frame 307 is rotatably connected to one end of the support plate 1 315, the other end of the support plate 1 315 is fixed on the slider 316, the slider 316 slides in the slide groove 317 provided on the housing 305, and an operating button 318 is provided on the outside of the slide groove 317, the lower rotating frame 309 is rotatably connected to one end of the support plate 2 319, and the other end of the support plate 2 319 is fixed to the inner wall of the housing 305, the housing 305 is threadedly connected to the lower ends of the four support screws 304, and the upper ends of the four support screws 304 are rotatably connected to the support platform 303, a long slot 306 is provided in the middle position of the support platform 303, and the upper rotating frame 307 extends from the long slot 306;

[0067] The working principle of the above technical solution is as follows: after the clamping device 1 clamps the excised tooth 4, when performing operations such as resection, back preparation, and back filling on the root portion of the excised tooth 4, the adjusting device 3 can be used to drive the excised tooth 4 to rotate at multiple angles, thereby facilitating the inspection of the root surface details of the excised tooth 4;

[0068] Insert the two ends of the support frame 301 into the insertion slots 120 on the left clamping plate 101 and the right clamping plate 102 respectively. Through the clamping of the two ends of the support frame 301, the clamping device 1 can further fix the excised tooth 4 and prevent the left clamping plate 101 and the right clamping plate 102 from opening easily.

[0069] Rotate the rotating rod 122, driving the semicircular protrusion 123 and the pointer 124 to rotate along with the rotating rod 122. The semicircular protrusion 123 rotates out of the semicircular groove 121 and rotates into the semicircular groove 2 302. At this time, the direction of the pointer 124 changes from pointing downward to pointing upward, indicating that the left clamping plate 101, the right clamping plate 102 and the support frame 301 are fixed together, and the support frame 301 will not easily detach from the insertion slot 120.

[0070] After the ex vivo tooth 4 is fixed, it is necessary to inspect and operate the root of the ex vivo tooth 4 under a microscope. The knob 314 is turned to drive the gear 2 313 to rotate, which drives the gear 1 312 to rotate, which drives the bevel gear rod 311 to rotate, which drives the bevel gear 310 to rotate, which drives the lower rotating frame 309 to rotate, which drives the upper rotating frame 307 to rotate through the connecting piece 308, which drives the support frame 301 to rotate, and then drives the ex vivo tooth 4 to rotate through the clamping device 1, so that different surfaces of the root of the ex vivo tooth 4 can be inspected and operated conveniently.

[0071] The center position of the slide groove 317 is on the same horizontal line as the center position of the connecting piece 308. The operating button 318 is toggled to drive the slider 316 to slide in the slide groove 317, drive the support plate 1 315 to move, drive the upper rotating frame 307 to tilt, drive the connecting piece 308 to rotate, drive the connecting piece 308 and the lower rotating frame 309 to rotate, the upper rotating frame 307 is tilted, drive the support frame 301 to tilt, drive the clamping device 1 to tilt, drive the excised tooth 4 to tilt to a certain angle, turn the knob 314, drive the gear 2 313 to rotate, drive the gear 1 312 to rotate, drive the bevel gear rod 311 to rotate, drive the bevel gear 310 to rotate, drive the lower rotating frame 309 to rotate, drive the upper rotating frame 307 to rotate through the connecting piece 308, drive the support frame 301 to rotate, and then drive the excised tooth 4 to tilt and rotate through the clamping device 1, so as to facilitate multi-angle inspection and operation of different root surfaces of the excised tooth 4;

[0072] The lower end of the support frame 301 is rotatably connected to the upper rotating frame 307, and a fastening screw 320 is threadedly connected to the side of the upper rotating frame 307. The front end of the fastening screw 320 is against the support frame 301, and the support frame 301 and the upper rotating frame 307 are fixed by the fastening screw 320. When the upper rotating frame 307 and the lower rotating frame 309 are in a vertical state, the fastening screw 320 is rotated, and the front end of the fastening screw 320 is separated from the support frame 301, and the support frame 301 can be slightly rotated between the upper rotating frame 307, thereby slightly rotating the ex vivo tooth 4. When the upper rotating frame 307 is tilted, the ex vivo tooth 4 can be slightly rotated and tilted, so that different planes can be displayed under the microscope;

[0073] The left clamping plate 101 and the right clamping plate 102 are tilted and rotated to contact the upper surface of the support platform 303 at the maximum tilt angle. The clamping device 1 cannot continue to rotate to prevent the Hank's balanced salt solution in the preservation bag body 201 from overflowing. By rotating the support screw 304, the support platform 303 is driven to rise or fall, thereby changing the distance between the left clamping plate 101 and the support platform 303, and thereby changing the maximum tilt angle of the ex vivo tooth 4 when the left clamping plate 101 contacts the support platform 303. It can be adaptively adjusted according to the capacity of the Hank's balanced salt solution in the preservation bag body 201.

[0074] Example 6

[0075] like Figures 1-14 As shown, the tooth fixing method for autogenous tooth transplantation or replantation is applicable to any of the above-mentioned tooth fixing devices for autogenous tooth transplantation or replantation, comprising the following steps:

[0076] S1. Remove the cover 203 on the threaded portion 202 by rotating the tooth 4 into the storage bag body 201 through the threaded portion 202. The tooth 4 is immersed in Hank's balanced salt solution in the storage bag body 201.

[0077] S2. The separated tooth 4 is placed between the storage bag body 201 on the left and right holding plates 101 and 102, and is locked by the locking member to fix the separated tooth 4 inverted in the circular receiving groove;

[0078] S3 along the dotted line 205 to save the bag body 201 cut open, the root of the ex vivo tooth 4 can be operated by adjusting the angle of the ex vivo tooth 4 3 changes by adjusting the device;

[0079] The working principle of the above technical solution is as follows: the cover 203 on the threaded portion 202 is removed by rotation, and the explanted tooth 4 is placed into the storage bag body 201 through the threaded portion 202. The explanted tooth 4 is immersed in the Hank's balanced salt solution in the storage bag body 201. The explanted tooth 4 is placed between the left clamping plate 101 and the right clamping plate 102 across the storage bag body 201, and is locked by the locking component. The explanted tooth 4 is fixed upside down in the circular receiving groove, and the storage bag body 201 is cut open along the dotted line 205. The root of the explanted tooth 4 can be operated. The angle of the explanted tooth 4 can be changed by the adjustment device 3. The entire fixing process of the explanted tooth 4 and the operation of the root of the explanted tooth 4 are controlled. During the operation, the ex vivo tooth 4 is always in Hank's balanced salt solution, so that the ex vivo tooth 4 is in a sterile environment, and the activity of the periodontal membrane is maintained to the greatest extent possible, and the root surface is kept clean to prevent the adhesion of gutta-percha and debris, thereby improving the success rate of tooth transplantation and tooth replantation. The clamping device 1 can accurately and stably clamp the crown of the ex vivo tooth 4 to avoid contact with the periodontal membrane of the ex vivo tooth 4 and damage to the periodontal membrane. After the clamping device 1 clamps the ex vivo tooth 4, when performing operations such as resection, reverse preparation, and reverse filling on the root part of the ex vivo tooth 4, the ex vivo tooth 4 can be driven to rotate at multiple angles through the adjustment device 3, which is convenient for checking the details of the root surface of the ex vivo tooth 4.

[0080] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A dental fixture for autologous tooth transplantation or replantation, characterized in that: The invention comprises a clamping device (1) and a storage bag (2), wherein the ex vivo tooth (4) is immersed in a Hank's balanced salt solution in the storage bag (2), and the ex vivo tooth (4) is fixed in an inverted position in the clamping device (1) through the storage bag (2); The clamping device (1) comprises a left clamping plate (101) and a right clamping plate (102), wherein one end of the left clamping plate (101) and the right clamping plate (102) are connected via a hinge (103), and the other end of the left clamping plate (101) and the right clamping plate (102) are connected via a locking component; The upper ends of the left clamping plate (101) and the right clamping plate (102) are both provided with a bag opening component. On the left clamping plate (101), the bag opening component includes two slides (114). The two slides (114) are slid on the upper end of the left clamping plate (101). A spring (115) is provided between the lower ends of the two slides (114) and the left clamping plate (101). The upper ends of the slides (114) are rotatably connected to a gear rod (116). The slides (114) are slidably connected to the gear rod (116). The gear rod (116) and the support rod (117) are gear-coordinated for transmission. The support rod (117) is made of a transparent acrylic material. The two slides (114) are both rotatably connected to the pull rod (118), the middle position of the pull rod (118) is clamped on the clamping block (119), and the clamping block (119) is fixed on the side of the left clamping plate (101).

2. The tooth fixture for autologous tooth transplantation or replantation according to claim 1, characterized in that: The clamping device (1) is unfolded by a hinge (103) at one end thereof, and the excised tooth (4) is placed upside down in the clamping device (1) through the preservation bag (2). After the clamping device (1) is fastened, the crown of the excised tooth (4) is fixed inside the clamping device (1), and the root of the excised tooth (4) is located on the upper side of the clamping device (1).

3. The tooth fixture for autologous tooth transplantation or replantation according to claim 2, characterized in that: A semicircular receiving groove is provided in the middle of the left clamping plate (101) and the right clamping plate (102), and a rubber pad (104) is attached to the inner wall of the semicircular receiving groove. The excised tooth (4) is fixed in an inverted position between the left clamping plate (101) and the right clamping plate (102) via the preservation bag (2), and the excised tooth (4) is located in the circular receiving groove formed by combining the two semicircular receiving grooves.

4. The tooth fixture for autologous tooth transplantation or replantation according to claim 3, characterized in that: The locking component comprises a locking rod (105), one end of the locking rod (105) rotates in the left clamping plate (101), the other end of the locking rod (105) is fixed with a cylindrical rod (106), the end of the cylindrical rod (106) is threadedly connected to the adjusting rod (107), the front end of the adjusting rod (107) is rotatably connected to the sliding column (108), the sliding column (108) slides in the cylindrical rod (106), a screw rod (110) is slidably connected in the cylindrical rod (106), a spring (109) is provided between the sliding column (108) and the screw rod (110), a notch (111) is provided on the side of the cylindrical rod (106), the screw rod (110) is threadedly connected to the fastening nut (112), a boss (113) is fixed to the end of the right clamping plate (102), and the front end of the fastening nut (112) rests on the boss (113).

5. The tooth fixture for autologous tooth transplantation or replantation according to claim 1, characterized in that: The sides of the left clamping plate (101) and the right clamping plate (102) are both provided with a plug-in groove (120), the left clamping plate (101) is provided with a semicircular groove (121), the left clamping plate (101) is rotatably connected to the rotating rod (122), the rotating rod (122) is provided with a semicircular protrusion (123) and a pointer (124), after the adjustment device (3) is inserted into the plug-in groove (120), the semicircular protrusion (123) is clamped in the adjustment device (3), and the front end of the pointer (124) faces upward.

6. The tooth fixture for autologous tooth transplantation or replantation according to claim 5, characterized in that: The storage bag (2) includes a storage bag body (201), the upper end opening of the storage bag body (201) is connected to the threaded portion (202), the upper end of the threaded portion (202) is thread-sealed by a cover (203), and Hank's balanced salt solution is stored in the storage bag body (201); Four hanging buckles (204) are provided on the outer wall of the storage bag body (201), and a dotted line (205) is provided on the upper side of the hanging buckle (204). The storage bag body (201), the hanging buckle (204) and the threaded portion (202) are all made of transparent plastic material. The storage bag body (201) and the hanging buckle (204) are all made of soft and thin plastic material, and the threaded portion (202) is made of hard plastic.

7. The tooth fixture for autologous tooth transplantation or replantation according to claim 6, characterized in that: The lower ends of the left clamping plate (101) and the right clamping plate (102) are provided with an adjusting device (3), the adjusting device (3) comprises a support frame (301), the support frame (301) is plugged into the plug slot (120), the semicircular protrusion (123) is clamped into the second semicircular groove (302) provided on the support frame (301), the lower end of the support frame (301) is rotatably connected to the upper rotating frame (307), and the side surface of the upper rotating frame (307) is threadedly connected with a fastening screw (320), and the fastening screw (320) is screwed into the upper rotating frame (307). ) front end is against the support frame (301), the upper rotating frame (307) is rotatably connected to the two ends of the connecting member (308), the other two ends of the connecting member (308) are rotatably connected to the upper end of the lower rotating frame (309), a bevel gear (310) is fixed to the lower end of the lower rotating frame (309), the bevel gear (310) is meshed with one end of the bevel gear rod (311) for transmission, the other end of the bevel gear rod (311) is rotatably fixed with a gear 1 (312), and the bevel gear rod (311) is rotatably connected to the housing (305).

8. The tooth fixture for autologous tooth transplantation or replantation according to claim 7, characterized in that: The gear 1 (312) and the gear 2 (313) are meshed and transmitted, the gear 2 (313) is rotatably connected to the housing (305), the gear 2 (313) is fixedly connected to the knob (314), the upper rotating frame (307) is rotatably connected to one end of the support plate 1 (315), the other end of the support plate 1 (315) is fixed on the slider (316), the slider (316) slides in the slide groove (317) provided on the housing (305), and the outer side of the slide groove (317) is provided with The operating button (318) is connected to the lower rotating frame (309) and one end of the supporting plate (319) in a rotational manner. The other end of the supporting plate (319) is fixed to the inner wall of the housing (305). The housing (305) is threadedly connected to the lower ends of the four supporting screws (304). The upper ends of the four supporting screws (304) are rotatably connected to the supporting platform (303). A long slot (306) is provided in the middle of the supporting platform (303), and the upper rotating frame (307) extends from the long slot (306).

9. A tooth fixing method for autogenous tooth transplantation or replantation, applicable to the tooth fixing device for autogenous tooth transplantation or replantation according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Remove the cover (203) on the threaded portion (202) by rotating it, and place the ex vivo tooth (4) through the threaded portion (202) into the storage bag body (201). The ex vivo tooth (4) is immersed in Hank's balanced salt solution in the storage bag body (201); S2. The ex vivo tooth (4) is placed between the left clamping plate (101) and the right clamping plate (102) through the storage bag body (201), and is locked by the locking member to fix the ex vivo tooth (4) in an inverted position in the circular receiving groove; S3. Cut the storage bag body (201) along the dotted line (205) to operate on the root of the ex vivo tooth (4) and change the angle of the ex vivo tooth (4) through the adjustment device (3).

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