A dental implant navigation marker fixation device

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, disclose a kind of oral implant navigation marker's fixing device, including occlusal splint, occlusal splint includes inner side splint, top connecting plate and outer side splint, inner side splint and outer side splint are respectively arranged in the two sides of top connecting plate, inner side splint and outer side splint form dentition clamping space between, outer side splint outer wall is equipped with installation cylinder, installation cylinder is used to install connecting rod, connecting rod other end installs navigation marker cylinder;Top connecting plate middle part is equipped with pre-fold mark along the direction parallel to inner side splint / outer side splint, along the extension direction of pre-fold mark, at least one surface on top connecting plate is provided with fracture groove. The utility model is fixed on dentition by clamping, and it is convenient and reliable to install, fracture groove is provided on occlusal splint along pre-fold mark, it is convenient to dismantle quickly after operation;Setting installation cylinder of installation connecting rod, it is convenient for connecting rod to be inserted directly, it is convenient for the fixation of occlusal splint and the installation of navigation marker cylinder.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a fixation device for dental implant navigation markers. Background Technology

[0002] Dental implant surgery has become a common procedure for restoring missing teeth. The emergence and development of digital medicine have enabled it to be performed faster and more accurately under visualization. The dynamic navigation system (DNS) for dental implants can track the drill position in real time during the procedure, avoiding damage to adjacent important anatomical tissues, improving the accuracy of implant position, depth, and angle after surgery, and significantly reducing intraoperative complications and surgeon's operation time, leading to its rapid development in the field of dental implantology.

[0003] DNS-guided dental implantation requires the direct or indirect placement of navigation markers on the dentition for preoperative registration and intraoperative navigation. Bone marker registration involves implanting titanium screws into the dentition, which is invasive and traumatic for the patient. Occlusal splints are directly clamped onto the patient's dentition, avoiding trauma. However, existing occlusal splints have the following problems: to prevent splint displacement and slippage, they need to be temporarily bonded to the dentition with adhesive, making removal difficult postoperatively; extension rods are fixed to the occlusal splint, extending outside the oral cavity, which hinders the procedure during splint installation. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a fixation device for dental implant navigation markers, which is securely fixed and easy to install and remove postoperatively.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows: A fixation device for a dental implant navigation marker includes an occlusal splint. The occlusal splint comprises an inner splint, a top connecting plate, and an outer splint. The inner and outer splints are respectively disposed on both sides of the top connecting plate, forming a dentition clamping space between them for clamping and fixing the entire device to the dentition. The outer wall of the outer splint is provided with an installation cylinder for installing a connecting rod. The other end of the connecting rod is equipped with a navigation marker cylinder. The top connecting plate has a pre-fold in the middle along a direction parallel to the inner / outer splint, and a fracture groove is formed on at least one surface of the top connecting plate along the extension direction of the pre-fold.

[0006] As a preferred technical solution, the top of the inner clamping plate and the outer clamping plate are respectively provided with clamping lugs extending upwards.

[0007] As a preferred technical solution, the upper part of the clamping lug extends outward in a zigzag or arc shape.

[0008] As a preferred technical solution, the cross-section of the fracture groove at the pre-fold is V-shaped, U-shaped or trapezoidal, and the wall thickness at the bottom of the fracture groove is 1 / 3 to 1 / 2 of the wall thickness of the top connecting plate.

[0009] As a preferred technical solution, the top connecting plate has at least two fracture holes spaced apart along the extension direction of the pre-fold in the fracture groove. The fracture holes penetrate the fracture groove, and the center line of the fracture holes coincides with the pre-fold.

[0010] As a preferred technical solution, the fracture hole is a circular hole or an oblong hole, and the distance between the walls of adjacent fracture holes is 1 / 3 to 1 / 2 of the wall thickness of the top connecting plate.

[0011] As a preferred technical solution, the inner and outer clamping plates are provided with interlocking teeth at intervals on their opposing sides, and an adhesive filling area is formed between the interlocking teeth.

[0012] As a preferred technical solution, the occlusal teeth are arranged laterally, the end faces of the occlusal teeth are arc-shaped to match the shape of the tooth row, and the end faces of the occlusal teeth are longitudinally extended with protrusions, forming a groove between the protrusions and the inner wall of the inner or outer clamping plate.

[0013] As a preferred technical solution, the mounting cylinder is hexagonal, with a hexagonal opening at one end and a through hole at the other end. The connecting rod is L-shaped, with a hexagonal mounting head at one end, which is adapted to the inner wall of the mounting cylinder. The other end of the connecting rod is threaded to the navigation mark cylinder.

[0014] As a preferred technical solution, the inner wall of the mounting cylinder is divided into a front part and a rear part. The front part is close to the opening side, and the rear part is close to the through hole side. The inner wall of the mounting cylinder is inclined to the axis of the mounting cylinder, and the inclination direction of each inner wall is the same. The inclination angle of the front part is greater than that of the rear part.

[0015] The beneficial effects of this utility model are: The present invention relates to a fixation device for dental implant navigation markers, which is clamped and fixed to the dentition, making installation convenient and reliable. The occlusal splint has a fracture groove along the pre-folded edge, which facilitates quick removal after surgery. An installation tube for installing the connecting rod is provided, which allows the connecting rod to be directly inserted, eliminating the problem of complicated installation of the navigation marker tube during surgery.

[0016] The present invention relates to a fixation device for dental implant navigation markers, which is equipped with a clamping awl to provide a force fulcrum when removing the occlusal splint, thus facilitating operation.

[0017] The present invention relates to a fixation device for dental implant navigation markers, which provides occlusal teeth on the opposing sides of the inner and outer splints to make the adhesive more secure and eliminate the risk of displacement and dislocation of the occlusal splints during surgery.

[0018] The present invention relates to a device for fixing navigation markers for oral implantation. The inner wall of the mounting cylinder is inclined in one direction relative to the central axis, and the inclination angle of the front part is greater than that of the rear part. When the connecting rod is inserted into the rear part, the connecting rod is deflected by the guide of the inner wall, so that the mounting cylinder clamps the connecting rod and avoids displacement of the connecting rod during the operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0021] Figure 2 This is a three-dimensional schematic diagram of an occlusal splint; Figure 3 yes Figure 2 Top view; Figure 4 yes Figure 3 A sectional view; Figure 5 This is a schematic diagram of the usage state of an embodiment of this utility model.

[0022] Reference numerals: 1-Bite clamping plate, 2-Mounting cylinder, 3-Connecting rod, 4-Navigation marker cylinder, 11-Inner clamping plate, 12-Top connecting plate, 13-Outer clamping plate, 121-Fracture groove, 122-Fracture hole, 14-Bite teeth, 15-Fracture support lug, 21-Front part, 22-Rear part. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] This embodiment provides a device for fixing navigation markers in dental implants, such as... Figures 1-5 As shown, the device includes an occlusal splint 1, which comprises an inner splint 11, a top connecting plate 12, and an outer splint 13. The inner splint 11 and the outer splint 13 are respectively disposed on both sides of the top connecting plate 12, forming a tooth clamping space between the inner splint 11 and the outer splint 13 for clamping and fixing the entire device onto the tooth row. The outer wall of the outer splint 13 is provided with a mounting cylinder 2, which is used to install the connecting rod 3 of the navigation marker cylinder 4. The navigation marker is disposed on the navigation marker cylinder. The top connecting plate 12 has a pre-fold in the middle along a direction parallel to the inner splint / outer splint. Along the extension direction of the pre-fold, a fracture groove 121 is formed on at least one surface of the top connecting plate 12 to facilitate breaking the occlusal splint 1 into two parts for removal.

[0025] Furthermore, the inner clamping plate 11 and the outer clamping plate 13 are respectively provided with clamping lugs 15 extending upward from their tops. When it is necessary to break the clamping plates, the outer sides of the two clamping lugs 15 are pinched with the thumb and forefinger and force is applied inward to break the top connecting plate 12 into two parts along the pre-fold line. Preferably, the upper part of the clamping lugs 15 extends outward in a folded line or arc shape to facilitate clamping and applying force.

[0026] Furthermore, the cross-section of the fracture groove 121 at the pre-crease is V-shaped, U-shaped, or trapezoidal, and the wall thickness at the bottom of the fracture groove 121 is 1 / 3 to 1 / 2 of the wall thickness of the top connecting plate 12, wherein the included angle of the V-shaped groove is 30° to 60°. Even further, at least two fracture holes 122 are provided at intervals along the extension direction of the pre-crease within the fracture groove 121 of the top connecting plate 12. The fracture holes 122 penetrate the fracture groove 121, and the line connecting the center lines of the fracture holes 122 coincides with the pre-crease. The fracture holes 122 are circular or oblong, and the distance between the walls of adjacent fracture holes 122 is 1 / 3 to 1 / 2 of the wall thickness of the top connecting plate 12. In this embodiment, a pre-crease is pre-set on the top connecting plate, and the fracture groove makes the structural strength at the pre-crease 1 / 3 to 1 / 2 of that in other areas, reducing the external force required for fracture by more than 50%, thus facilitating dismantling.

[0027] In use, adhesive is first applied to the opposing sides of the inner splint 11 and the outer splint 13. The entire device is then clamped onto the dentition and allowed to cure, thus fixing the device to the dentition. Preferably, the opposing sides of the inner splint 11 and the outer splint 13 are provided with occlusal teeth 14 at intervals, forming an adhesive-filled area between the occlusal teeth 14. Preferably, the occlusal teeth 14 are arranged laterally, with their end faces forming an arc shape adapted to the shape of the dentition. The end faces of the occlusal teeth 14 have longitudinally extending ridges, forming grooves between the ridges and the inner walls of the inner or outer splints, which helps to fix the adhesive. Preferably, the occlusal splint 1 is 3D printed, which increases the fit between the occlusal teeth 14 and the patient's dentition and simplifies the problem of complex manufacturing processes and poor versatility.

[0028] Furthermore, the mounting cylinder 2 is hexagonal, with a hexagonal opening at one end and a through hole at the other end. The connecting rod 3 is L-shaped, with a hexagonal mounting head at one end. The mounting head fits the inner wall of the mounting cylinder 2, ensuring a secure connection after the connecting rod 3 is inserted into the mounting cylinder 2 without any risk of loosening. The other end of the connecting rod 3 is threaded to the navigation marker cylinder 4. More preferably, the inner wall of the mounting cylinder 2 is divided into a front portion 21 and a rear portion 22. The front portion 21 is closer to the opening side, and the rear portion 22 is closer to the through hole side. The inner wall of the mounting cylinder 2 is inclined to the axis of the mounting cylinder, with all inner walls inclined in the same direction at an angle of 1~3°. The inclination angle of the front portion 21 is greater than that of the rear portion 22. The connecting rod 3 is inserted into the open end of the mounting cylinder 2. In the front part, the outer wall of the connecting rod 3 is in clearance fit with the front part 21 of the inner wall of the mounting cylinder 2 for easy insertion. When inserted to the rear part, the connecting rod 3 is deflected under the guidance of the rear part of the inner wall, and the clearance fit surface in the front part changes from a regular hexagon to an equilateral shape at the cross-section, thereby clamping the connecting rod and achieving stable fixation. More preferably, at least one side wall of the open end of the mounting cylinder 2 is provided with a tearing opening 23, which is V-shaped. After the entire device is removed postoperatively, the connecting rod 3 can be directly pried open to tear the mounting cylinder 2 from the tearing opening 23, and the connecting rod 3 can then be removed.

[0029] The method of using this utility model is as follows: First, apply adhesive to the adhesive-filled area of ​​the occlusal splint, then clamp the splint onto the patient's teeth and allow it to cure. Next, insert one end of the connecting rod into the mounting tube, with the other end extending to the outside of the patient's mouth. Attach a navigation marker tube to the other end of the connecting rod. Post-operatively, grasp the outer sides of the two clamping auricles and apply inward force to break the top connecting plate, then remove the occlusal splint.

[0030] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A device for fixing navigation markers in dental implants, characterized in that: The device includes an occlusal splint (1), which includes an inner splint (11), a top connecting plate (12), and an outer splint (13). The inner splint (11) and the outer splint (13) are respectively located on both sides of the top connecting plate (12). A tooth row clamping space is formed between the inner splint (11) and the outer splint (13) for clamping and fixing the entire device on the tooth row. An installation cylinder (2) is provided on the outer wall of the outer splint (13). The installation cylinder (2) is used to install a connecting rod (3). A navigation mark cylinder (4) is installed at the other end of the connecting rod (3). A pre-fold is provided in the middle of the top connecting plate (12) along the direction parallel to the inner splint / outer splint. A fracture groove (121) is provided on at least one surface of the top connecting plate (12) along the extension direction of the pre-fold.

2. The device for fixing dental implant navigation markers according to claim 1, characterized in that: The top of the inner clamping plate (11) and the outer clamping plate (13) are respectively provided with clamping lugs (15) extending upward.

3. The device for fixing dental implant navigation markers according to claim 2, characterized in that: The upper part of the clamping lug (15) extends outward in a zigzag or arc shape.

4. The device for fixing dental implant navigation markers according to claim 1, characterized in that: The cross-section of the fracture groove (121) at the pre-fold is V-shaped, U-shaped or trapezoidal, and the wall thickness at the bottom of the fracture groove (121) is 1 / 3 to 1 / 2 of the wall thickness of the top connecting plate (12).

5. The device for fixing dental implant navigation markers according to claim 4, characterized in that: At least two fracture holes (122) are provided at intervals in the fracture groove (121) of the top connecting plate (12) along the extension direction of the pre-fold. The fracture holes (122) penetrate the fracture groove (121), and the center line of the fracture holes (122) coincides with the pre-fold.

6. The device for fixing dental implant navigation markers according to claim 5, characterized in that: The fracture hole (122) is a circular hole or a waist-shaped hole, and the distance between the holes of adjacent fracture holes (122) is 1 / 3 to 1 / 2 of the wall thickness of the top connecting plate (12).

7. The device for fixing dental implant navigation markers according to claim 1, characterized in that: The inner clamping plate (11) and the outer clamping plate (13) are provided with interlocking teeth (14) at intervals on opposite sides, and an adhesive filling area is formed between the interlocking teeth (14).

8. The device for fixing dental implant navigation markers according to claim 7, characterized in that: The bite teeth (14) are arranged laterally, and the end face of the bite teeth (14) is arc-shaped to match the shape of the tooth row. The end face of the bite teeth (14) is longitudinally extended with a protrusion, and a groove is formed between the protrusion and the inner wall of the inner or outer clamping plate.

9. The device for fixing dental implant navigation markers according to claim 1, characterized in that: The mounting cylinder (2) is hexagonal, with a hexagonal opening at one end and a through hole at the other end. The connecting rod (3) is L-shaped, with a hexagonal mounting head at one end. The mounting head is fitted to the inner wall of the mounting cylinder (2), and the other end of the connecting rod (3) is threaded to the navigation mark cylinder (4).

10. The device for fixing dental implant navigation markers according to claim 9, characterized in that: The inner wall of the mounting cylinder (2) is divided into a front part (21) and a rear part (22). The front part (21) is close to the opening side, and the rear part (22) is close to the through hole side. The inner wall of the mounting cylinder (2) is inclined to the axis of the mounting cylinder. The inclination direction of each inner wall is the same. The inclination angle of the front part (21) is greater than that of the rear part (22).

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