A novel fixation device to assist in simultaneous maxillary and mandibular implant surgery

Abstract

This utility model discloses a novel fixation base for assisting in simultaneous maxillary and mandibular implant surgery, specifically relating to the field of oral implant surgery navigation. It includes a connecting base one and a connecting base two. The bottom surface of connecting base one is fixedly connected to the top surface of connecting base two. Grooves one and two are respectively formed on opposite sides of connecting base one and connecting base two, and multiple cylinders are fixedly mounted on grooves one and two respectively. A protrusion is fixedly mounted on one side of connecting base two, and a connecting hole one is formed on the protrusion. When used for simultaneous maxillary and mandibular implant surgery, this utility model eliminates the need for separately customized fixation bases for the maxilla and mandible, eliminates the need to replace the maxillary and mandibular oral fixators during surgery, and eliminates the need for separate registration of the patient's maxillary and mandibular oral spatial positions. Only one registration is required to simultaneously confirm the spatial positions of the patient's maxilla and mandible, significantly reducing the operational costs when using navigation for simultaneous maxillary and mandibular implant surgery.

Description

Technical Field

[0001] This utility model relates to the field of oral implant surgery navigation technology, specifically a novel fixation device for assisting in simultaneous maxillary and mandibular implant surgery. Background Technology

[0002] During oral implant surgery, an oral implant surgery navigation system is used to locate the patient's oral cavity and the position of the surgeon's implant handpiece during the operation. This type of navigation system uses optical positioning. When using this type of implant navigation system, a fixed base needs to be customized in the non-surgical area of ​​the patient's oral cavity before the operation to fix the oral locator during the operation.

[0003] In existing technologies, for patients with simultaneous upper and lower jaw tooth loss, the mouth opening cannot be fixed during navigation-guided implant surgery. The locator located in the maxilla or mandible cannot locate the spatial position of the implant area in the other jaw. When using navigation for upper and lower jaw implantation, separate fixed brackets need to be customized, which increases the operational cost of customizing fixed brackets for patients before surgery. Furthermore, the oral space position needs to be individually aligned for both maxillary and mandibular implantation, increasing the operational cost for doctors during surgery. During the surgery, patients need to maintain an open mouth for a long time, and navigation-guided implantation surgery has certain requirements for the patient's mouth opening, which can easily lead to patient fatigue during surgery. At the same time, because the surface of normal human teeth is relatively smooth, traditional single-jaw fixed brackets are prone to instability, intraoperative movement, and even dislodgement. Especially in maxillary implantation, the weight of the jaw fixation frame and oral locator increases the possibility of the fixed bracket moving and falling off.

[0004] Based on the problems of existing technologies, such as the need to customize fixation seats separately when implanting the upper and lower jaws simultaneously, the need to separately align the upper and lower jaws, the lack of support for the patient's mouth opening during surgery leading to fatigue, and the insufficient stability of single-jaw fixation seats, which are prone to shaking and falling off during surgery, a new type of fixation seat is proposed to assist in the simultaneous implantation of the upper and lower jaws. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a novel fixation base for assisting in simultaneous maxillary and mandibular implantation surgery, comprising a connecting base one and a connecting base two. The bottom surface of the connecting base one is fixedly connected to the top surface of the connecting base two. The opposite sides of the connecting base one and the connecting base two are respectively provided with groove one and groove two, and multiple cylinders are fixedly provided on groove one and groove two respectively. A protrusion is fixedly provided on one side of the connecting base two, and a connecting hole one is provided on the protrusion.

[0007] As a preferred technical solution of this utility model, the connecting seat one and the connecting seat two are each composed of two side plates and a horizontal plate, with one side plate being vertically arranged and the other side plate being inclined.

[0008] As a preferred technical solution of this utility model, the inclined side plate is inclined in a direction away from the vertically arranged side plate.

[0009] As a preferred embodiment of this utility model, the protrusion is fixedly mounted on the vertically mounted side plate, and the connecting hole is used to connect with the jaw fixation bracket.

[0010] As a preferred embodiment of this utility model, two connecting holes are symmetrically provided on the inclined side plate of the connecting seat two.

[0011] The beneficial effects of this utility model are:

[0012] When the fixation device of this invention is used for simultaneous implantation of the upper and lower jaws, there is no need to customize a separate fixation device for the upper and lower jaws. During the operation, there is no need to replace the upper and lower jaw oral fixation device. Furthermore, when used for simultaneous implantation of the upper and lower jaws, there is no need to register the spatial position of the patient's upper and lower jaws separately. Only one registration is required to confirm the spatial position of the patient's upper and lower jaws at the same time, which greatly reduces the operation cost when using navigation for simultaneous implantation of the upper and lower jaws.

[0013] When applied to navigation-guided implant surgery, this invention can provide intraoral support for patients throughout the procedure, relieving fatigue from opening the mouth during surgery. Furthermore, this invention uses a combination of occlusal and bilateral resin fixation to achieve fixation, which greatly improves stability compared to traditional unilateral resin fixation and reduces the occurrence of intraoperative shaking and dislodgement. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of a novel fixation base for assisting in simultaneous maxillary and mandibular implantation surgery according to this utility model.

[0016] In the diagram: 1. Connector 1; 2. Connector 2; 3. Groove 1; 4. Groove 2; 5. Cylinder; 6. Protrusion; 7. Connecting hole 1; 8. Connecting hole 2. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0018] Example: Figure 1As shown, this utility model discloses a novel fixation base for assisting in simultaneous maxillary and mandibular implant surgery. It includes a connecting base 1 and a connecting base 2. The bottom surface of connecting base 1 is fixedly connected to the top surface of connecting base 2. Grooves 3 and 4 are respectively formed on the opposite sides of connecting base 1 and connecting base 2, and multiple cylinders 5 are fixedly mounted on grooves 3 and 4. Before surgery, a suitable amount of special plastic resin (or temporary crown material) is melted using hot water above 80°C. The melted resin is then filled into grooves 3 and 4. The cylinders 5 facilitate resin adhesion. Grooves 3 and 4 are the occlusal areas. After the resin is filled, the fixation base is placed in the patient's mouth on the non-implant area side of the posterior teeth. The patient bites down on the fixation base, ensuring full contact between the upper and lower posterior teeth and the resin. After the resin cools and molds, the fixation base is removed. The resin on the fixation base is then completely cured with cold water and placed back in the patient's mouth in the customized position. The patient is then observed to check for movement. If there is no movement, the pre-operative fixation base customization stage is complete.

[0019] A protrusion 6 is fixedly provided on one side of the connecting seat 2, and a connecting hole 7 is provided on the protrusion 6. The connecting seat 1 and the connecting seat 2 are each integrally composed of two side plates and a horizontal plate, with one side plate being vertically arranged and the other side plate being inclined. The inclined side plate is inclined away from the vertical side plate, and the inclined arrangement facilitates the placement and removal of the fixing seat.

[0020] The protrusion 6 is fixedly mounted on the vertically positioned side plate, and the first connection hole 7 is used for connection with an existing jaw fixation bracket. Two second connection holes 8 are symmetrically provided on the inclined side plate of the second connector 2, which can be used to connect and cooperate with other tools required during surgery.

[0021] While the patient maintains occlusion with the fixation device in place, a CBCT scanner is used to scan the patient's oral and maxillofacial bones. The patient remains stationary throughout the scan to acquire high-resolution CBCT data without significant artifacts. The CBCT data acquisition time and slice thickness are confirmed to meet the surgical planning requirements of the implant surgery navigation software and are ready for use. After imaging, the fixation device is removed from the patient's mouth, disinfected with alcohol, and reserved for use during the operation. This is the preoperative CBCT scanning and planning stage.

[0022] Following the preoperative CBCT scan and planning stage, the preoperative surgical plan planning stage takes place. This involves the surgeon importing the patient's oral CBCT data into implant navigation surgical software (or other implant navigation software capable of importing data) to obtain a three-dimensional image of the patient's oral cavity based on the CBCT data. On this basis, the preoperative surgical plan is planned, including determining key parameters such as the target implant's location (e.g., within the specific anatomical region of the jawbone), depth (accurate to the millimeter level), and angle (its angular relationship with the long axis of the jawbone or the occlusal plane). Simultaneously, the bone volume and quality of the jawbone are assessed to ensure the safety and effectiveness of the implant plan. After the design is completed, the surgeon can access the navigation interface to prepare for the implant surgery, or the completed surgical plan can be archived and used before surgery.

[0023] The subsequent implant navigation surgery stage involves placing the occlusal fixation device, jaw fixation bracket, and oral locator in the patient's occlusal position and registering their spatial positions in the patient's upper and lower jaws after confirming stability. The implant navigation device collects real-time spatial position information from the oral locator and implant handpiece locator (achieved through optical tracking, electromagnetic tracking, or acoustic tracking systems). This information is then fused with CT 3D images and the patient's actual oral cavity data to establish a spatial coordinate system based on CBCT oral data. The device calculates and displays the actual position and axial direction of the implant tools (such as the implant handpiece and drill bit) within the patient's oral cavity in real time, comparing it with the pre-planned target position. This guides the surgeon to precisely execute the step-by-step preparation of the implant site and the implant placement according to the planned scheme. During navigation, the device displays real-time deviations in the implant site and axis, as well as the distance between the drill tip and danger zones (nerve canals, etc.), ensuring the precision and safety of the implant surgery.

[0024] Throughout the entire procedure, each stage is connected via data transmission and processing. Preoperatively, a custom-made occlusal fixation device is created for the patient, and the patient's mouth opening is confirmed and fixed. Preoperative CBCT scans are taken and the data is transmitted to the implant navigation system software or other implant navigation system software capable of receiving the plan for preoperative planning. After the surgical plan is planned, the implant navigation system navigates the implant surgery according to the planned surgical plan. During navigation, the patient's mouth opening is fixed, and a single registration confirms the spatial position of the patient's upper and lower jaws, eliminating the need to disassemble or reassemble the fixation device or register the upper and lower jaws separately.

[0025] It should be noted that the preoperative CBCT scanning and planning stage, the preoperative surgical plan planning stage, and the implant navigation surgery stage in this application are all existing technologies in the field. The implementation methods and related tools and instruments involved are also existing technologies and will not be described in detail here. These steps include the specific application of the fixation seat in this application and the cooperation between the fixation seat and other instruments. The fixation seat in this application can fix the patient's mouth opening during the operation, provide support, and realize the function of only needing to customize the fixation seat once before the operation and only needing to register the patient's oral cavity space position once during the operation. It has specific application effects in improving the patient's intraoperative comfort (such as reducing mouth opening fatigue) and increasing the stability of the fixation seat (such as reducing shaking, falling off, etc.) during the navigation implant surgery.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel fixation device for assisting in simultaneous maxillary and mandibular implant surgery, characterized in that, It includes a first connecting seat (1) and a second connecting seat (2). The bottom surface of the first connecting seat (1) is fixedly connected to the top surface of the second connecting seat (2). The opposite sides of the first connecting seat (1) and the second connecting seat (2) are respectively provided with a first groove (3) and a second groove (4). Multiple cylinders (5) are fixedly provided on the first groove (3) and the second groove (4). A protrusion (6) is fixedly provided on one side of the second connecting seat (2), and a first connecting hole (7) is provided on the protrusion (6).

2. The novel fixation device for assisting in simultaneous maxillary and mandibular implant surgery according to claim 1, characterized in that, The connecting seat one (1) and the connecting seat two (2) are each composed of two side plates and a horizontal plate, with one side plate set vertically and the other side plate set at an angle.

3. A novel fixation device for assisting in simultaneous maxillary and mandibular implant surgery according to claim 2, characterized in that, The inclined side panels are tilted away from the vertically inclined side panels.

4. A novel fixation device for assisting in simultaneous maxillary and mandibular implant surgery according to claim 1, characterized in that, The protrusion (6) is fixedly mounted on the vertically mounted side plate, and the connecting hole (7) is used to connect with the jaw fixation bracket.

5. A novel fixation device for assisting in simultaneous maxillary and mandibular implant surgery according to claim 1, characterized in that, Two connecting holes (8) are symmetrically opened on the inclined side plate of the connecting seat 2 (2).

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