Cheekbone implant positioning bow

Abstract

The utility model discloses a zygomatic bone implant positioning bow, and belongs to the technical field of zygomatic implantation. The utility model relates to a cheekbone implant positioning bow which comprises a main bow frame, a guide sleeve and an adjusting piece. One end of the main bow frame is provided with a lower port, the lower port is provided with a guide sleeve, an adjusting piece is arranged outside the guide sleeve, the guide sleeve is provided with a through first hole body, the adjusting piece can move relative to the first hole body, and the middle of the adjusting piece is provided with a second through hole which is coaxial with the adjusting piece and penetrates through the two ends of the adjusting piece. Due to the structural design of the zygomatic implant positioning bow, especially the combination of the main bow frame and the adjusting piece channel, the precise positioning and implanting process of the zygomatic bone implant is optimized. Through rigidity and adjustable design of the bow frame, the positioning bow can adapt to anatomical structures of different patients, safety and accuracy of an operation are improved, and positioning errors in the operation are reduced.

Description

Technical Field

[0001] This utility model relates to the field of zygomatic bone implant technology, specifically to a zygomatic bone implant positioning bow. Background Technology

[0002] Zygomatic bone implants are a restorative treatment for patients with severe maxillary atrophy, particularly suitable for cases where traditional implants cannot provide sufficient bone volume support. This technique achieves immediate restoration and long-term stability by fixing the implant in the maxilla and zygomatic bone. However, due to the complex anatomical structures involved in zygomatic bone implants, the implantation angle, depth, and stability are crucial. The zygomatic bone is located close to sensitive areas such as the orbit and maxillary sinus; even slight deviations can lead to serious postoperative complications, such as zygomatic bone perforation, maxillary sinus infection, or nerve damage.

[0003] Traditional zygomatic bone implant surgery relies heavily on the surgeon's experience, using manual measurements or simple mechanical positioning tools to place the implant. However, the anatomical characteristics of the zygomatic bone and the angle requirements of the implant are extremely demanding, and manual operation often fails to guarantee precise implant positioning, thus increasing the risk of surgical failure. In the existing published patent EP4018961A1, the device ensures strong intraosseous locking of the maxilla during zygomatic bone surgery, ultimately enabling implant placement. However, its positioning structure is relatively complex, and there is still room for optimization in this area. Utility Model Content

[0004] The core of this invention is to provide a zygomatic bone implant positioning bow. This tool combines the advantages of mechanical guidance, providing an adjustable positioning tool for zygomatic bone implant surgery, ensuring accurate implant placement, and improving the success rate of the surgery.

[0005] The zygomatic bone implant positioning bow includes a main bow frame. One end of the main bow frame has a lower port, and a guide sleeve is provided at the lower port. An adjusting component is provided outside the guide sleeve. The guide sleeve has a through first hole. The adjusting component can be displaced relative to the first hole. The middle of the adjusting component has a second through hole that is coaxial with it and passes through both ends of the adjusting component. Both the adjusting component and the guide sleeve are rotating structures. The axis of the adjusting component is on the same straight line as the axis of the first hole inside the guide sleeve.

[0006] The combination of the guide sleeve and the adjustment piece allows for adjustment of the thread fit during surgery to control the distance between the nut and the bottom surface of the guide sleeve, thereby controlling the depth of the second through hole into the zygomatic bone and ultimately affecting the implantation depth of the zygomatic bone implant. This ensures that the implant is precisely placed in the predetermined direction, which not only improves surgical efficiency but also reduces the incidence of postoperative complications due to improper adjustment, thus making postoperative oral hygiene maintenance simpler for patients.

[0007] This utility model's adjusting component has a nut at one end, and a second through hole passes through the nut. During surgery, the implant can be inserted into the zygomatic bone along the second through hole. The design of the second through hole allows for precise directional drilling of the zygomatic bone during surgery, achieving accurate implantation of the zygomatic bone implant.

[0008] This utility model's main bow frame includes a main body with a bent upper port at one end and an arc-shaped lower port at the other end. The cross-sectional dimensions at the connection between the main body and the upper port increase towards the connection between the main body and the lower port. The main bow frame is made of high-strength medical-grade alloy, possessing sufficient rigidity and fatigue resistance to withstand greater operational forces, thus preventing deformation or displacement of the positioning bow during surgery. Before surgery, the specific dimensions of the main bow frame can be designed using preoperative CT scans to obtain the patient's three-dimensional skeletal data. The main bow frame, through a predetermined curvature and structural design, matches the patient's zygomatic bone anatomy, providing overall positioning support for the positioning bow.

[0009] The upper end of the main arch frame of this utility model is an arc-shaped structure. The two ends of the arc-shaped structure are respectively provided with a second tooth and a third tooth. The arc-shaped structure between the second tooth and the third tooth forms an opening. The left and right end faces of the second tooth and the third tooth extend to the tooth tip in an angled structure. The third tooth and the second tooth are used to fix the positioning arch on the cheekbone during surgery.

[0010] The upper end of this utility model is provided with a positioning groove. The first tooth, the second tooth, the third tooth, and the fourth tooth together form the positioning groove. The function of the positioning groove is to fix the entire positioning bow on the cheekbone.

[0011] The second tooth of this invention has a first tooth on one side that connects to the arc-shaped structure of the upper port, and a fourth tooth on one side that connects to the arc-shaped structure of the upper port. The left and right end faces of the first, second, and third teeth extend to the tooth tip at an angle. The left end face of the fourth tooth is flat, and the right end face is arc-shaped. The left and right end faces are connected at the tooth tip. The first, second, third, and fourth teeth together form a positioning groove to ensure that the positioning bow is fixed on the cheekbone during surgery.

[0012] The arc center of the upper port arc structure of this utility model is on the common axis of the adjusting component and the first hole. When the positioning groove is stuck in the cheekbone, it can perform precise directional drilling on the cheekbone to achieve precise implantation of the cheekbone implant.

[0013] The first hole of this utility model is a threaded hole. The threaded hole of the first hole can be matched with the external thread of the adjusting component. The adjusting component can change the distance between the nut and the bottom surface of the guide sleeve by adjusting the degree of matching with the threaded hole. The length and diameter of the adjusting component itself can also be adjusted according to the thickness of the patient's zygomatic bone. Ultimately, it can achieve the function of adjusting the implant angle and depth during the operation, ensuring that the implant can be accurately implanted into the zygomatic bone and maxilla in the predetermined direction, and ensuring the stability and smoothness of the implantation.

[0014] The advantages of this invention are as follows: The zygomatic bone implant positioning arch employs a main arch frame and adjusting screw design, ensuring precise positioning of the zygomatic bone during surgery. This structure effectively reduces positioning errors caused by patient head movement or improper surgical procedures, thereby improving implant accuracy. The main arch frame, made of high-strength medical alloy, possesses excellent rigidity and fatigue resistance. This material can withstand greater operational forces during surgery, preventing deformation or displacement of the positioning arch and ensuring the long-term stability of the implant. The guide sleeve and positioning slide rail combination allows the surgeon to adjust the implantation angle and depth in real time during surgery, ensuring precise implantation in the predetermined direction. This feature not only improves surgical efficiency but also reduces the incidence of postoperative complications due to improper adjustments, making postoperative oral hygiene maintenance simpler for patients. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 Assembly drawing of the zygomatic bone implant positioning bow provided by this utility model;

[0017] Figure 2 A cross-sectional view of the adjusting component and guide sleeve of the zygomatic bone implant positioning bow provided by this utility model;

[0018] Figure 3 A cross-sectional view of the main arch frame of the zygomatic bone implant positioning arch provided in this utility model;

[0019] Figure 4 A schematic diagram of the positioning groove and opening of the zygomatic bone implant positioning bow provided by this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1-Main bow frame, 2-Adjusting component, 10-Second tooth, 11-Upper port, 12-Bow frame body, 13-Lower port, 14-Guide sleeve, 15-First hole, 16-Positioning groove, 17-Opening, 18-First tooth, 110-Third tooth, 19-Fourth tooth. Detailed Implementation

[0021] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0022] Example 1:

[0023] See attached document Figure 1 Appendix Figure 3 As shown, the core of this utility model is to provide a zygomatic bone implant positioning bow, including a main bow frame 1. One end of the main bow frame 1 has a lower port 13, and a guide sleeve 14 is provided at the lower port 13. An adjusting member 2 is provided outside the guide sleeve 14. The guide sleeve 14 has a through first hole 15. The adjusting member 2 can be displaced relative to the first hole. The middle part of the adjusting member 2 has a second through hole 21 that is coaxial with it and passes through both ends of the adjusting member 2. Both the adjusting member 2 and the guide sleeve 14 are rotating structures. The axis of the adjusting member 2 and the axis of the first hole 15 inside the guide sleeve 14 are on the same straight line.

[0024] See attached document Figure 1 Appendix Figure 2 As shown, the combination of guide sleeve 14 and adjustment piece 2 allows the thread fit to be adjusted during the operation to control the distance between nut 22 and bottom surface of guide sleeve 14, control the distance of second through hole 21 into the zygomatic bone, and ultimately affect the implantation depth of zygomatic bone implant, ensuring that the implant is accurately implanted in the predetermined direction. This not only improves surgical efficiency but also reduces the incidence of postoperative complications due to improper adjustment, thus making postoperative oral hygiene maintenance simpler for patients.

[0025] See attached document Figure 1 As shown, the adjusting component 2 of this utility model has a nut 22 at one end, and a second through hole 21 passes through the nut 22. During the operation, the implant can be inserted into the zygomatic bone along the second through hole 21. The design of the second through hole 21 allows for precise directional drilling of the zygomatic bone during the operation, achieving precise implantation of the zygomatic bone implant.

[0026] Example 2:

[0027] See attached document Figure 3As shown, the main bow frame 1 of this utility model includes a bow frame body 12. One end of the bow frame body 12 is connected to a bent upper port 11, and the other end is connected to an arc-shaped lower port 13. The cross-sectional dimensions at the connection between the bow frame body 12 and the upper port 11 increase towards the connection between the bow frame body 12 and the lower port 13. The main bow frame 1 is made of high-strength medical alloy, possessing sufficient rigidity and fatigue resistance to withstand greater operating forces, thereby preventing deformation or displacement of the positioning bow during surgery. Before surgery, the specific dimensions of the main bow frame 1 can be designed using preoperative CT scans to obtain the patient's three-dimensional skeletal data, ensuring personalized needs for different patients. The main bow frame 1, through its predetermined curvature and structural design, matches the patient's zygomatic bone anatomy, providing overall positioning support for the positioning bow.

[0028] See attached document Figure 4 As shown, the upper port 11 of the main bow frame 1 of this utility model is an arc-shaped structure. The two ends of the arc-shaped structure are respectively provided with a second tooth 10 and a third tooth 110. The arc-shaped structure between the second tooth 10 and the third tooth 110 forms an opening 17. The left and right end faces of the second tooth 10 and the third tooth 110 extend to the tooth tip in an angled structure. The third tooth 110 and the second tooth 10 are used to fix the positioning bow on the cheekbone during surgery.

[0029] See attached document Figure 4 As shown, the upper port 11 of this utility model is provided with a positioning groove 16. The first tooth 18, the second tooth 10, the third tooth 110, and the fourth tooth 19 together form the positioning groove 16. The function of the positioning groove 16 is to fix the entire positioning bow on the cheekbone.

[0030] See attached document Figure 4 As shown, the second tooth 10 of this invention has a first tooth 18 on one side that connects to the arc-shaped structure of the upper port 11, and a fourth tooth 19 on one side that connects to the arc-shaped structure of the upper port 11. The left and right end faces of the first tooth 18, the second tooth 10, and the third tooth 110 extend to the tooth tip in an angled structure. The left end face of the fourth tooth 19 is flat, and the right end face is arc-shaped. The left end face and the right end face are connected at the tooth tip. The first tooth 18, the second tooth 10, the third tooth 110, and the fourth tooth 19 together form a positioning groove 16, ensuring that the positioning bow is fixed on the cheekbone during surgery.

[0031] See attached document Figure 1 Appendix Figure 3 Appendix Figure 4 As shown, the arc center of the arc-shaped structure of the upper port 11 of this utility model is on the common axis of the adjusting member 2 and the first hole 15. When the positioning groove 16 is stuck in the cheekbone, it can perform precise directional drilling on the cheekbone to achieve precise implantation of the cheekbone implant.

[0032] See attached document Figure 1 Appendix Figure 3As shown, the first hole 15 of this utility model is a threaded hole. The threaded hole of the first hole 15 can cooperate with the external thread of the adjusting member 2. The adjusting member 2 can change the distance between the nut 22 and the bottom surface of the guide sleeve 14 by adjusting the degree of cooperation with the threaded hole. The length and diameter of the adjusting member 2 itself can also be adjusted according to the thickness of the patient's zygomatic bone. Ultimately, it can realize the function of adjusting the implant angle and depth during the operation, ensuring that the implant can be accurately implanted into the zygomatic bone and maxilla in the predetermined direction, and ensuring the stability and smoothness of the implantation.

[0033] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the present utility model, and are not intended to limit the implementation methods of the present utility model in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the present utility model, but these should still be regarded as the same technology or embodiment as the present utility model.

[0034] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A malar implant positioning arch, comprising a main arch frame (1), one end of the main arch frame (1) having a lower port (13) provided with a guide sleeve (14), characterized in that: the guide sleeve (14) is externally provided with an adjusting member (2), the guide sleeve (14) is provided with a first hole body (15) penetrating therethrough, the adjusting member (2) is capable of displacement relative to the first hole body (15), and the adjusting member (2) is provided in the middle portion thereof with a second through hole (21) coaxial with the adjusting member (2) and penetrating through both end portions of the adjusting member (2). The adjusting member (2) and the guide sleeve (14) are both of a rotary body structure, and the axis of the adjusting member (2) is on the same straight line as the axis of the first hole body (15) in the guide sleeve (14).

2. The malar implant positioning bow according to claim 1, wherein: One end of the adjusting member (2) is provided with a screw nut (22), and the second through hole (21) penetrates through the screw nut (22).

3. The malar implant positioning bow of claim 1, wherein: The main arch frame (1) comprises an arch frame body (12), one end of the arch frame body (12) is connected with a bent upper port (11), the other end is connected with an arc-shaped lower port (13), and the cross-sectional dimension of the arch frame body (12) at the connection with the upper port (11) increases in the direction of the connection of the arch frame body (12) with the lower port (13).

4. The malar implant positioning bow of claim 1, wherein: The upper port (11) is of an arc-shaped structure, and the arc-shaped structure is provided at both ends thereof with a second tooth (10) and a third tooth (110), respectively, and the arc-shaped structure portion between the second tooth (10) and the third tooth (110) constitutes an opening (17).

5. The malar implant positioning bow according to claim 4, characterized in that: The upper port (11) is provided with a positioning groove (16).

6. The malar implant positioning bow of claim 5, wherein: One side of the second tooth (10) is provided with a first tooth (18) connected with the arc-shaped structure of the upper port (11), and one side of the third tooth (110) is provided with a fourth tooth (19) connected with the arc-shaped structure of the upper port (11).

7. The malar implant positioning bow according to claim 6, characterized in that: The arc center of the arc-shaped structure of the upper port (11) is on the common axis of the adjusting member (2) and the first hole body (15).

8. The malar implant positioning bow of claim 5, wherein: The first hole body (15) is a threaded hole.

9. The malar implant positioning bow of claim 1, wherein: ​

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