Dental implant positioning device

Abstract

The utility model relates to dental auxiliary device technical field especially implant tooth positioning device, the utility model discloses a setting frame that is set up above the implant position and is extended along the left and right directions and is set on the dental crown on both sides respectively, the positioning assembly that is set up in the setting frame and is used for determining the implant tooth implant position and the fixing component that is set up on the setting frame and is used for fixing and installing the setting frame on the dental crown on both sides.

Description

Technical Field

[0001] This utility model relates to the field of dental auxiliary device technology, and in particular to a dental implant positioning device. Background Technology

[0002] Dental implantation is a common method for restoring missing teeth. The key to successful dental implant surgery lies not only in providing the patient with a correct and reasonable treatment plan before surgery, but also in ensuring the proper placement of the implant in the labial (buccal), lingual (palatal), or mesiodistal direction. The position and orientation of the implant play a crucial role in the restoration of the superstructure and the long-term stability of the implant. However, the following problems currently exist in the clinical process of dental implant placement: 1. Currently, customized dental implant guides are often used for auxiliary positioning. However, since the dental implant guide is simply placed on the tooth and does not have components to fix the guide to the patient's tooth, the guide can easily shift position when the patient's head moves during the implant installation process. This can cause the implant to deviate from the preset position and affect the implantation result.

[0003] 2. Current dental implant guides require oral CT scans, data import and processing, 3D model reconstruction, guide design and fabrication, quality inspection and sterilization, etc., which are time-consuming and dependent on hospital equipment conditions. In hospitals with poor equipment conditions, dental implant guides are difficult to fabricate or take too long to fabricate. Utility Model Content

[0004] In order to solve the above problems, the purpose of this utility model is to provide a dental implant positioning device, which aims to solve the problem that existing dental implant guides are prone to displacement during use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A dental implant positioning device is disposed between the left and right teeth at the implant placement site, including a placement frame extending in the left and right direction above the implant position and having its left and right ends respectively disposed on the crowns of the teeth on both sides, a positioning component disposed within the placement frame for determining the implant placement position, and a fixing component disposed on the placement frame for fixing the placement frame to the teeth on both sides. The fixing assembly includes upper and lower limiting suction cups fixed to the lower middle section of the left side of the placement frame, a pair of fixing seats fixed to the right side of the placement frame at intervals along the front-back direction, a rotating column extending through the two fixing seats and rotatably connected to the two fixing seats respectively, a pair of fixing columns fixed to the front and back ends of the rotating column respectively and extending along the front-back direction, two sets of limiting parts corresponding to each fixing column and respectively set on the corresponding fixing column, two movable rods corresponding to each fixing column and respectively movably sleeved on the corresponding fixing column, two front and rear limiting suction cups corresponding to each movable rod and fixed to the free end of the corresponding movable rod near the fixing seat, and two sets of left and right limiting sub-assemblies respectively set on the left and right sides of the placement frame and used to keep the placement frame relatively stationary with the teeth on both sides in the left-right direction. Each set of limiting components includes several elastic limiting sub-components arranged at intervals along the front-back direction and fixed on the corresponding side fixing posts; the diameter of each elastic limiting sub-component increases progressively from the end furthest from the fixing seat to the end closest to the fixing seat.

[0006] More preferably, each set of left and right limiting sub-assemblies includes a base fixed on the side of the corresponding side strip of the mounting frame away from the central axis of the mounting frame, a pair of rope sleeves fixed on the front and rear side walls of the base respectively, a limiting rope loop that slides through the rope sleeves on both sides in the middle and is sleeved on the side of the corresponding teeth near the central axis of the mounting frame at the lower end, a rope take-up screw that extends vertically and is threaded to the base, a rope winding rod fixed on the upper end of the rope take-up screw and coaxial with the rope take-up screw, a rope take-up rod fixed on the upper end of the rope take-up screw and off-axis with the rope take-up screw, and a hand-tightening screw head fixed on the upper end of the rope take-up rod. The right end of the anti-slip rope loop is fitted onto the rope take-up rod.

[0007] More preferably, the positioning component includes a placement plate fixed to the inner wall of the placement frame, a positioning frame detachably embedded in the placement plate, and a thermoplastic printing piece fixed in the positioning frame.

[0008] More preferably, clamping plates are fixedly provided on the upper sides of the left and right ends of the placement plate.

[0009] This utility model has the following beneficial effects: 1. This utility model uses upper and lower limiting suction cups to limit and fix the placement frame to the teeth in the vertical direction, uses front and rear limiting suction cups on both sides to limit and fix the placement frame to the teeth in the front and rear direction, and uses left and right limiting sub-assemblies to limit and fix the placement frame to the teeth on both sides in the left and right direction, respectively, to achieve a comprehensive locking and limiting effect on the placement frame, and solves the problem that the auxiliary positioning device is prone to deviation during dental implantation. 2. This utility model uses a thermoplastic imprint to imprint the physical shape inside the implant socket, and after thermoplastic fixation, screw holes for implant screw installation are drilled on the thermoplastic imprint. Then, the thermoplastic imprint is placed back into the placement frame, so that the operator can accurately install the implant screw into the socket along the preset screw holes opened on the thermoplastic imprint. Attached Figure Description

[0010] Figure 1 This is an overall exploded view of the present invention; Figure 2 This is an overall axonometric view of the present invention; Figure 3 This is an isolated axonometric view of a single-sided left and right limiting sub-assembly according to the present invention; Figure 4 This is an isolated axonometric view of a rope-retracting screw according to the present invention; Figure 5 This is an isolated axonometric view of a partial fixing component of this utility model; Figure 6 This is a schematic diagram of one usage state of the present invention.

[0011] Explanation of reference numerals in the attached figures: 1. Placement frame; 2. Positioning component; 21. Placement plate; 22. Positioning frame; 23. Thermoplastic printing part; 3. Fixing component; 31. Upper and lower limit suction cups; 32. Fixing base; 33. Rotating column; 34. Fixing column; 35. Limiting component assembly; 351. Limiting sub-component; 36. Movable rod; 37. Front and rear limit suction cups; 38. Left and right limiting sub-components; 381. Base; 382. Rope threading sleeve; 383. Limiting rope loop; 384. Rope winding screw; 385. Rope winding rod; 386. Rope winding rod; 387. Hand-tightening screw head; 4. Clamping plate; 5. Teeth. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a dental implant positioning device of this embodiment is disposed between the left and right teeth 5 at the implant placement site. It includes a placement frame 1 extending in the left and right direction above the implant position and having its left and right ends respectively disposed on the crowns of the teeth 5 on both sides; a positioning component 2 disposed in the placement frame 1 for determining the implant placement position; and a fixing component 3 disposed on the placement frame 1 for fixing the placement frame 1 to the teeth 5 on both sides. The fixing component 3 includes upper and lower limiting suction cups 31 fixed to the lower middle section of the left side of the mounting frame 1, a pair of fixing seats 32 fixed to the right side of the mounting frame 1 at intervals along the front and back direction, a rotating column 33 extending through the two fixing seats 32 and rotatably connected to the two fixing seats 32 respectively, a pair of fixing columns 34 fixed to the front and back ends of the rotating column 33 respectively and extending along the front and back direction, two sets of limiting component groups 35 corresponding to each fixing column 34 and respectively set on the corresponding fixing column 34, two movable rods 36 corresponding to each fixing column 34 and respectively movably sleeved on the corresponding fixing column 34, two front and rear limiting suction cups 37 corresponding to each movable rod 36 and fixed to the free end of the corresponding movable rod 36 near the fixing seat 32, and two sets of left and right limiting sub-components 38 respectively set on the left and right sides of the mounting frame 1 and used to keep the mounting frame 1 relatively stationary with the teeth 5 on both sides in the left and right direction. Each set of limiting components 35 includes several elastic limiting sub-components 351 arranged at intervals along the front-back direction and fixed on the corresponding side fixing post 34; the diameter of each elastic limiting sub-component 351 increases continuously from the end away from the fixing seat 32 to the end closer to the fixing seat 32.

[0013] When using this product, press the upper and lower limiting suction cups 31 to adhere them to the upper side of the left tooth 5. This restricts the vertical movement of the mounting frame 1, achieving vertical fixation. Then, rotate the two movable rods 36 until the front and rear limiting suction cups 37 align with the outer walls of the front and rear sides of the right tooth 5. Next, press the two movable rods 36 towards the outer wall of the tooth 5, causing the rotating ends of each movable rod 36 to compress the elastic limiting sub-component 351 along the direction of increasing diameter under pressure. 1. After the movable rod 36 moves to the side where the elastic limiting sub-piece 351 is close to the fixed seat 32, the diameter of the hole at the rotating end of the movable rod 36 is smaller than the largest diameter of the elastic limiting sub-piece 351, thereby restricting the movable rod 36 from moving away from the fixed seat 32. This causes the movable rods 36 on both sides to move the front and rear limiting suction cups 37 on both sides to the position of fitting the surface of the tooth 5. Pressing the front and rear limiting suction cups 37 makes them fit and adhere to the outer wall of the tooth 5. At this time, the front and rear movement of the placement frame 1 is affected by the movable rods 36 on both sides, preventing the placement frame 1 from shaking back and forth.

[0014] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, each set of left and right limiting sub-assemblies 38 includes a base 381 fixed on the side of the corresponding side strip of the mounting frame 1 away from the central axis of the mounting frame 1, a pair of rope sleeves 382 respectively fixed on the front and rear side walls of the base 381, a limiting rope loop 383 with its middle section slidingly inserted into the rope sleeves 382 on both sides and its lower end sleeved on the side of the corresponding side teeth 5 near the central axis of the mounting frame 1, a rope take-up screw 384 extending vertically and threadedly connected to the base 381, a rope winding rod 385 fixed on the upper end of the rope take-up screw 384 and coaxial with the rope take-up screw 384, a rope take-up rod 386 fixed on the upper end of the rope take-up screw 384 and off-axis with the rope take-up screw 384, and a hand-tightening screw head 387 fixed on the upper end of the rope take-up rod 386. The right end of the anti-slip rope loop is fitted onto the rope take-up rod 386.

[0015] When using this product, rotating the two hand-tightening screw heads 387 on both sides will cause the two rope-retracting screws 384 on both sides to move along the spiral direction. During the rotation, the rope-retracting rod 386 will cause the upper end of the limiting rope loop 383 to be wound around the rope-winding rod 385, thereby achieving the effect of tightening the lower end of the limiting rope loop 383. At this time, the left and right movement of the placement frame 1 is restricted by the two limiting rope loops 383 on both sides, which will prevent the placement frame 1 from sliding back and forth.

[0016] like Figure 1 , Figure 2 and Figure 6 As shown, the positioning component 2 includes a placement plate 21 fixed to the inner wall of the placement frame 1, a positioning frame 22 detachably embedded in the placement plate 21, and a thermoplastic printing piece 23 fixed in the positioning frame 22.

[0017] When using this product, the operator places the positioning frame 22 on the placement plate 21 inside the placement frame 1, so that the soft thermoplastic imprint 23 is embedded between the two teeth 5 and imprints the shape of the alveolar bone where the implant is to be placed. Then, the thermoplastic imprint 23 is removed by clamping the two clamping plates 4, and high-temperature shaping is performed. The implant screw installation position is determined by the results of the previous oral CT scan. Pre-installation screw holes are made on the hard thermoplastic imprint 23 along the installation path. Then, the thermoplastic imprint 23 is put back into the placement frame 1, so that the thermoplastic imprint 23 is placed between the two teeth 5. The implant screw is screwed in from the pre-installation screw hole position. The placement frame 1 remains stationary relative to the patient's teeth, so that the implant screw is always stably placed in the corresponding position of the implant along the axis of the pre-installation screw hole.

[0018] like Figure 1 , Figure 2 and Figure 6 As shown, clamping plates 4 are fixed on the upper sides of the left and right ends of the placement plate 21, respectively.

[0019] When using this product, the positioning frame 22 can be removed from the placement frame 1 by holding the two clamping plates 4 on both sides with your fingers, thus providing a position for applying force.

[0020] The working principle of this device is as follows: Step 1: Place the placement frame 1 above the teeth 5 on both sides, and then place the limiting loops 383 on the corresponding teeth 5 on both sides respectively. Figure 6 As shown.

[0021] Step 2: Then press the upper and lower limit suction cups 31 to make them adhere to the upper side of the left tooth 5, so that the movement of the mounting frame 1 in the vertical direction is restricted by the upper and lower limit suction cups 31, thus achieving the limitation and fixation in the vertical direction.

[0022] Step 3: Then rotate the two movable rods 36 until the front and rear limiting suction cups 37 on both sides are aligned with the outer walls of the front and rear sides of the right tooth 5. Then press the two movable rods 36 towards the outer wall of the tooth 5, so that the rotating ends of each movable rod 36 squeeze the elastic limiting sub-piece 351 in the direction of increasing diameter under pressure. After the movable rod 36 moves to the side where the elastic limiting sub-piece 351 is close to the fixed seat 32, the diameter of the hole at the rotating end of the movable rod 36 is smaller than the largest diameter of the elastic limiting sub-piece 351, thereby restricting the movement of the movable rod 36 away from the fixed seat 32. This causes the two movable rods 36 to drive the front and rear limiting suction cups 37 on both sides to move to the position of fitting the surface of the tooth 5. Press the front and rear limiting suction cups 37 to fit and adhere to the outer wall of the tooth 5. At this time, the front and rear movement of the placement frame 1 is affected by the two movable rods 36, preventing the placement frame 1 from shaking back and forth.

[0023] Step 4: At this time, rotate the hand-tightening screws 387 on both sides, which will drive the rope-retracting screws 384 on both sides to move along the spiral direction. During the rotation, the rope-retracting rod 386 will drive the upper end of the limiting rope loop 383 to be wound around the rope-winding rod 385, thereby achieving the effect of tightening the lower end of the limiting rope loop 383. At this time, the left and right movement of the placement frame 1 is restricted by the limiting rope loops 383 on both sides, which will prevent the placement frame 1 from sliding back and forth.

[0024] Step 5: The operator then places the positioning frame 22 on the placement plate 21 inside the placement frame 1, so that the soft thermoplastic imprint 23 is embedded between the two teeth 5 and imprints the shape of the alveolar bone where the implant is to be placed. Then, the thermoplastic imprint 23 is removed by holding the two clamping plates 4, and high-temperature shaping is performed. The implant screw installation position is determined by the results of the previous oral CT scan. Pre-installation screw holes are made on the hard thermoplastic imprint 23 along the installation path. Then, the thermoplastic imprint 23 is put back into the placement frame 1, so that the thermoplastic imprint 23 is placed between the two teeth 5. The implant screw is screwed in from the pre-installation screw hole position, and the placement frame 1 remains stationary relative to the patient's teeth, so that the implant screw is always stably placed in the corresponding position of the implant along the axis of the pre-installation screw hole.

[0025] Step 6: After use, reverse the screw heads 387 on both sides to loosen the limiting loops 384 on both sides, so that the limiting force in the left and right direction of the placement frame 1 is removed. Then, rotate the movable rods 36 on both sides upward to move the front and rear limiting suction cups 37 along the outer wall of the tooth 5 to the position of being detached from the tooth 5, thereby releasing the restriction on the front and rear movement of the placement frame 1. Finally, pull the placement frame 1 to the right, so that the upper and lower limiting suction cups 31 are in contact with the upper surface of the tooth 5 and move into the implant placement socket, thereby releasing the restriction on the upper and lower movement of the placement frame 1. Then, remove the placement frame 1 from the patient's tooth. The next time it is used, a brand new device will be used for assistance.

[0026] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dental implant positioning device, disposed between the teeth (5) on both sides of the implant placement site, characterized in that: It includes a placement frame (1) extending in the left and right direction above the implantation site and with its left and right ends respectively on the crowns of the two teeth (5), a positioning component (2) located in the placement frame (1) and used to determine the implantation site, and a fixing component (3) located on the placement frame (1) and used to fix the placement frame (1) on the two teeth (5). The fixing component (3) includes upper and lower limiting suction cups (31) fixed to the lower middle section of the left side of the mounting frame (1), a pair of fixing seats (32) fixed to the right side of the mounting frame (1) at intervals along the front and back direction, a rotating column (33) extending through the two fixing seats (32) and rotatably connected to the two fixing seats (32) respectively, a pair of fixing columns (34) fixed at the front and rear ends of the rotating column (33) respectively and extending along the front and back direction, and two sets corresponding to each fixing column (34) respectively. The set of limiting components (35) on the fixed column (34), two movable rods (36) that are movably sleeved on the corresponding fixed column (34) in a one-to-one correspondence with each fixed column (34), two front and rear limiting suction cups (37) that are set and fixed on the free end of the corresponding movable rod (36) near the fixed seat (32) in a one-to-one correspondence with each movable rod (36), and two sets of left and right limiting sub-assemblies (38) that are respectively set on the left and right sides of the mounting frame (1) and used to keep the mounting frame (1) relatively stationary with the teeth (5) on both sides in the left and right directions. Each set of limiting components (35) includes several elastic limiting sub-components (351) arranged at intervals along the front-back direction and fixed on the corresponding side fixing post (34); the diameter of each elastic limiting sub-component (351) increases continuously from the end away from the fixing seat (32) to the end closer to the fixing seat (32).

2. The dental implant positioning device according to claim 1, characterized in that: Each set of left and right limiting sub-assemblies (38) includes a base (381) fixed on the side of the corresponding side strip of the mounting frame (1) away from the central axis of the mounting frame (1), a pair of rope sleeves (382) fixed on the front and rear side walls of the base (381), a middle section slidingly inserted into the rope sleeves (382) on both sides and the lower end sleeved on the corresponding side teeth (5) near the central axis of the mounting frame (1), a rope take-up screw (384) extending vertically and threadedly connected to the base (381), a rope winding rod (385) fixed on the upper end of the rope take-up screw (384) and coaxial with the rope take-up screw (384), a rope take-up rod (386) fixed on the upper end of the rope take-up screw (384) and off-axis with the rope take-up screw (384), and a hand-tightening screw head (387) fixed on the upper end of the rope take-up rod (386). The right end of the limiting loop (383) is fitted onto the rope take-up rod (386).

3. The dental implant positioning device according to claim 1, characterized in that: The positioning component (2) includes a placement plate (21) fixed on the inner wall of the placement frame (1), a positioning frame (22) detachably embedded on the placement plate (21), and a thermoplastic printing piece (23) fixed in the positioning frame (22).

4. The dental implant positioning device according to claim 3, characterized in that: Clamping plates (4) are fixed on the upper sides of the left and right ends of the placement plate (21).

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