Tooth fixation device and method for autologous tooth transplantation or replantation

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a tooth fixing device and method for autologous tooth transplantation or replanting, the tooth fixing device comprises a clamping device and a storage bag, an in-vitro tooth is soaked in a Hank's balanced salt solution in the storage bag, the in-vitro tooth is inversely fixed in the clamping device across the storage bag, and the in-vitro tooth is placed in the clamping device. In the fixing process of the in-vitro tooth and the operation process of the tooth root of the in-vitro tooth, the in-vitro tooth is always in the Hank's balanced salt solution, so that the in-vitro tooth is in a sterile environment, the activity of periodontal membrane is kept to the greatest extent, the cleanness of the surface of the tooth root is maintained, the adhesion of gutta-percha and debris is prevented, and the service life of the in-vitro tooth is prolonged. Therefore, the success rate of tooth transplantation and tooth reimplantation is improved.

Description

Technical Field

[0001] The 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] In the case of autologous tooth transplantation or intended replantation, 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 downward and the root facing upward, and then the root is cut, prepared and filled. The fixation of the crown is particularly important, and it not only needs to be clamped stably, but also cannot damage the root and periodontal ligament tissue. The currently used fixation methods are: clamp the crown of the tooth with extraction forceps, 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 operations, 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 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 solution is 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 the ex vivo tooth is fixed in the clamping device in an inverted position 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 part of the ex vivo tooth is fixed inside the clamping device, and the root part 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 attached to the inner wall of the semicircular receiving groove, and the ex-vivo tooth is inverted and fixed between the left clamping plate and the right clamping plate through a preservation bag, and the ex-vivo tooth is located in a 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 rod 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, the screw rod is threadedly connected to a fastening nut, and 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 clamping plate and the right clamping plate 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, the slide is slidably connected to the gear rod, the gear rod and the support rod gear cooperate for transmission, and the support rod is made of transparent acrylic material.

[0010] Furthermore, the two slide seats are both 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, the left clamping plate is provided with a semicircular groove, the left clamping plate is rotatably connected to the rotating rod, 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 comprises a storage bag body, the upper end opening of the storage bag body is connected to the threaded portion, the upper end 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 groove, 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, the side surface of the upper rotating frame is threadedly connected with a fastening screw, 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 piece, and the other two ends of the connecting piece 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, 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 one and gear two are meshed for transmission, the gear two is rotatably connected to the outer shell, the gear two is fixedly connected to the turning button, the upper rotating frame is rotatably connected to one end of the support plate one, the other end of the support plate one 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 two, the other end of the support plate two 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 groove is provided in the middle position of the support platform, and the upper rotating frame extends out of the long groove.

[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 cover on the threaded portion by rotating it, and place the ex vivo tooth into the storage bag body through the threaded portion. The ex vivo tooth is immersed 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 body along the dotted line to operate on the root of the ex vivo tooth and change the angle of the ex vivo 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 excised tooth to avoid contact with the periodontal membrane of the excised tooth 4 and 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, so as to facilitate the inspection of the root surface details 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 The structure of the clamping device of the present invention is schematically shown in FIG. Figure 1 ;

[0027] Figure 4 The structure of the clamping device of the present invention is schematically shown in FIG. Figure 2 ;

[0028] Figure 5 The structure of the clamping device of the present invention is schematically shown in FIG. Figure 3 ;

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

[0030] Figure 7 The structure of the clamping device of the present invention is schematically shown in FIG. Figure 4 ;

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

[0032] Fig. 9 The structure of the clamping device of the present invention is schematically shown in FIG. Figure 5 ;

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

[0034] Fig.11 It is a schematic diagram of the storage bag structure of the present invention;

[0035] Fig.12 The structure of the regulating device of the present invention is shown in FIG. Figure 1 ;

[0036] Fig.13 The structure of the regulating device of the present invention is shown in FIG. Figure 2 ;

[0037] Fig.14 The structure of the regulating device of the present invention is shown in FIG. Figure 3 ;

[0038] Description of the markings in the figure:

[0039] Clamping device 1; left clamping plate 101; right clamping plate 102; hinge 103; rubber pad 104; locking rod 105; cylinder rod 106; adjustment rod 107; sliding column 108; spring 109; screw rod 110; notch 111; fastening nut 112; boss 113; slide seat 114; spring 2 115; gear rod 116; support rod 117; pull rod 118; block 119; plug-in groove 120; semicircular groove 121; rotating rod 122; semicircular convex block 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 groove 306; upper rotating frame 307; connecting piece 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; separated tooth 4. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are 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", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] Embodiment 1

[0043] like Figure 1-Figure 14 As shown, a tooth fixing device for autologous tooth transplantation or replantation comprises a clamping device 1 and a preservation bag 2, wherein an ex vivo tooth 4 is immersed in a Hank's balanced salt solution in the preservation bag 2, and the ex vivo tooth 4 is inverted and fixed 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, and the ex vivo tooth 4 is placed in the preservation bag 2, and the ex vivo tooth 4 is immersed in the Hank's balanced salt solution. The Hank's balanced salt solution is a biologically active liquid, 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. The preservation bag 2 is a disposable transparent soft plastic bag, and 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, and the clamping device 1 clamps the crown of the ex vivo tooth 4 through the preservation bag 2. The upper mouth of the preservation bag 2 is cut open, and the root of the ex vivo tooth 4 can be operated;

[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 the 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, and the attachment of gutta-percha and debris is prevented, thereby improving the success rate of tooth transplantation and tooth replantation;

[0046] The clamping device 1 can be accurately and stably clamped on the crown of the ex vivo tooth 4 to avoid contacting the periodontal membrane of the ex vivo tooth 4 and causing damage to the periodontal membrane.

[0047] Embodiment 2

[0048] like Figure 1-Figure 14 As shown, the clamping device 1 is unfolded through 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 comprises 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, and a semicircular receiving groove is provided in the middle position 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, and the ex vivo tooth 4 is inverted and fixed between the left clamping plate 101 and the right clamping plate 102 through the preservation bag 2, and the ex vivo 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, the ex vivo tooth 4 is inverted and fixed 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, the crown of the ex vivo tooth 4 is located in the circular receiving groove through the preservation bag 2, and the inner wall of the semicircular receiving groove is attached with a rubber pad 104, which is a rubber material that can be sterilized at high temperature and has a certain elasticity. The rubber pad 104 can clamp the crown of the ex vivo tooth 4 and reduce the 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] Embodiment 3

[0053] like Figure 1-Figure 14 As shown, the locking component includes a locking rod 105, one end of which 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 a 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 abuts against 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 in the barrel rod 106, drive the spring 109 to be stretched, and drive the end of the screw 110 to slide in 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 of 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, so the ex vivo tooth 4 will not fall 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, the holding force is consistent for ex vivo teeth 4 of different models and sizes, avoiding the situation where it is impossible to find a suitable clamping force, or different sizes of ex vivo teeth 4 have different holding 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, thereby changing the size of the preset value of the clamping force for the ex vivo tooth 4 when the end of the screw rod 110 contacts the end of the slot 111. Therefore, according to the ex vivo teeth 4 of different ages and qualities, the size of the preset value of the clamping force for the ex vivo tooth 4 can be changed by rotating the adjusting rod 107, and the adaptability is strong.

[0056] Embodiment 4

[0057] like Figure 1-Figure 14 As shown, the upper ends of the left clamping plate 101 and the right clamping plate 102 are both provided with bag opening components. On the left clamping plate 101, the bag opening components include 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 with a gear rod 116. The slides 114 are slidably connected with 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 slide seats 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;

[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, the upper end of the threaded portion 202 is thread-sealed by a cover 203, and the storage bag body 201 stores Hank's balanced salt solution;

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

[0061] The working principle of the above technical solution is as follows: the cover 203 is rotated to remove the cover 203 from the threaded portion 202, the ex vivo tooth 4 is placed in the storage bag body 201, the ex vivo tooth 4 is immersed in the Hank's balanced salt solution in the storage bag body 201, the ex vivo tooth 4 is fixed upside down between the left clamping plate 101 and the right clamping plate 102 through the bag body 201, 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 cover 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, driving 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, and 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 is consistent with the operation mode of the bag opening component on the left clamping plate 101, and then the four support rods 117 are moved in opposite directions to open the upper mouth of the storage bag body 201, so as to facilitate the treatment of the root of the excised tooth 4;

[0062] The gear rod 116 is rotated to drive the support rod 117 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 then changing the height of the opening of the storage bag body 201. The height of the opening of the storage bag body 201 can be changed according to the size and height of the roots of different ex vivo 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] Embodiment 5

[0064] like Figure 1-Figure 14 As shown, 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 with 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 plugged 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] The left clamping plate 101 and the right clamping plate 102 are provided with an adjusting device 3 at the lower ends. The adjusting device 3 includes a support frame 301, the support frame 301 is inserted into the plug-in slot 120, and the semicircular protrusion 123 is clamped in the semicircular groove 2 302 set 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 of the upper rotating frame 307 is threadedly connected with a fastening screw 320, and the front end of the fastening screw 320 is against the support frame 301, and the upper rotating frame 307 is rotatably connected with both ends of the connecting member 308, and the other two ends of the connecting member 308 are rotatably connected to the upper end of the lower rotating frame 309, and a bevel gear 310 is fixed to the lower end of the lower rotating frame 309, and the bevel gear 310 is meshed with one end of the bevel gear rod 311 for transmission, and 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;

[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, an operating button 318 is provided on the outer side of the slide groove 317, the lower rotating frame 309 is rotatably connected to one end of the support plate 2 319, the other end of the support plate 2 319 is fixed on the inner wall of the housing 305, the housing 305 is threadedly connected to the lower ends of the four support screws 304, 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 of the support platform 303, and the upper rotating frame 307 extends out of the long slot 306;

[0067] The working principle of the above technical solution is: after the clamping device 1 clamps the ex vivo tooth 4, when performing operations such as resection, back preparation, and back 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 adjusting device 3, so as to facilitate the inspection of the root surface details of the ex vivo 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 ex vivo tooth 4 and prevent the left clamping plate 101 and the right clamping plate 102 from being easily opened.

[0069] The rotating rod 122 is rotated to drive 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 be easily separated from the plug-in 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, by turning the knob 314, driving the gear 2 313 to rotate, driving the gear 1 312 to rotate, driving the bevel gear rod 311 to rotate, driving the bevel gear 310 to rotate, driving the lower rotating frame 309 to rotate, driving the upper rotating frame 307 to rotate through the connecting piece 308, driving the supporting frame 301 to rotate, and then driving the ex vivo tooth 4 to rotate through the clamping device 1, so as to facilitate the inspection and operation of different surfaces of the root of the ex vivo tooth 4;

[0071] The center position of the slide groove 317 is on the same horizontal line as the center position of the connecting member 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 member 308 to rotate, drive the connecting member 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 ex-vivo 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 member 308, drive the support frame 301 to rotate, and then drive the ex-vivo tooth 4 to tilt and rotate through the clamping device 1, so as to facilitate the inspection and operation of different root surfaces of the ex-vivo tooth 4 at multiple angles;

[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, and 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 storage 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, thereby changing the maximum tilt angle of the ex-vivo tooth 4 when the left clamping plate 101 contacts the support platform 303, and can be adaptively adjusted according to the capacity of the Hank's balanced salt solution in the storage bag body 201.

[0074] Embodiment 6

[0075] like Figure 1-Figure 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, and comprises the following steps:

[0076] S1. Rotate and remove the cover 203 on the threaded portion 202, place the ex vivo tooth 4 through the threaded portion 202 into the storage bag body 201, and immerse the ex vivo tooth 4 in the storage bag body 201 in Hank's balanced salt solution;

[0077] 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 inverted in the circular receiving groove;

[0078] S3. The storage bag body 201 is cut along the dotted line 205, and the root of the ex vivo tooth 4 can be operated by changing the angle of the ex vivo tooth 4 by adjusting the device 3;

[0079] The working principle of the above technical solution is as follows: the cover 203 on the threaded part 202 is removed by rotation, and the ex vivo tooth 4 is placed into the storage bag body 201 through the threaded part 202. The ex vivo tooth 4 is immersed in the Hank's balanced salt solution in the storage bag body 201. The ex vivo 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 ex vivo 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 ex vivo tooth 4 can be operated, and the angle of the ex vivo tooth 4 can be changed by the adjusting device 3. The entire fixing process of the ex vivo tooth 4 and the operation of the root of the ex vivo 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 part 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 is to be understood that the present invention is described by some embodiments, and it is known to 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 by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A tooth fixture for autologous tooth transplantation or replantation, characterized in that: The invention comprises a clamping device (1) and a storage bag (2). The ex vivo tooth (4) is immersed in a Hank's balanced salt solution in the storage bag (2). The ex vivo tooth (4) is fixed in an inverted position in the clamping device (1) through the storage bag (2).

2. The tooth fixture for autogenous 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 buckled, 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: The clamping device (1) comprises 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 via a hinge (103); the other end of the left clamping plate (101) and the right clamping plate (102) are connected via a locking component; a semicircular receiving groove is provided in the middle of the left clamping plate (101) and the right clamping plate (102); a rubber pad (104) is attached to the inner wall of the semicircular receiving groove; the excised tooth (4) is inverted and fixed between the left clamping plate (101) and the right clamping plate (102) via a storage bag (2); and the excised tooth (4) is located in a circular receiving groove formed by combining the two semicircular receiving grooves.

4. The tooth fixture for autogenous tooth transplantation or replantation according to claim 3, characterized in that: The locking component comprises a locking rod (105), one end of which is rotated 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), 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) abuts against the boss (113).

5. The tooth fixture for autologous tooth transplantation or replantation according to claim 4, characterized in that: The upper ends of the left clamping plate (101) and the right clamping plate (102) are both provided with bag opening components. On the left clamping plate (101), the bag opening components include two slide seats (114). The two slide seats (114) are slid on the upper end of the left clamping plate (101). A spring 2 (115) is provided between the lower ends of the two slide seats (114) and the left clamping plate (101). The upper ends of the slide seats (114) are rotatably connected with a gear rod (116). The slide seat (114) is 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. The two slide seats (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).

6. The tooth fixture for autogenous tooth transplantation or replantation according to claim 5, 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 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.

7. The tooth fixture for autogenous tooth transplantation or replantation according to claim 6, characterized in that: The storage bag (2) comprises 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 arranged on the outer wall of the storage bag body (201), and a dotted line (205) is arranged on the upper side of the hanging buckle (204). The storage bag body (201), the hanging buckle (204) and the threaded part (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 part (202) is made of hard plastic.

8. The tooth fixture for autogenous tooth transplantation or replantation according to claim 7, characterized in that: The lower ends of the left clamping plate (101) and the right clamping plate (102) are provided with an adjustment device (3), the adjustment device (3) comprises a support frame (301), the support frame (301) is inserted into the insertion groove (120), the semicircular protrusion (123) is clamped into the semicircular groove 2 (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 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).

9. The tooth fixture for autogenous tooth transplantation or replantation according to claim 8, characterized in that: The gear 1 (312) and the gear 2 (313) are meshed 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 a slide groove (317) provided on the housing (305), and the outer side of the slide groove (317) is provided with An operating button (318), a lower rotating frame (309) is rotatably connected to one end of the second support plate (319), the other end of the second support plate (319) is fixed to the inner wall of the shell (305), the shell (305) is threadedly connected to the lower ends of the four support screws (304), 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 of the support platform (303), and the upper rotating frame (307) extends out from the long slot (306).

10. A tooth fixing method for autogenous tooth transplantation or replantation, applicable to a tooth fixing device for autogenous tooth transplantation or replantation as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Rotate and remove the cover (203) on the threaded portion (202), place the ex vivo tooth (4) through the threaded portion (202) into the storage bag body (201), and immerse the ex vivo tooth (4) in the 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. The storage bag body (201) is cut open along the dotted line (205), and the root of the excised tooth (4) can be operated, and the angle of the excised tooth (4) can be changed by the adjustment device (3).

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