Improved external lifting guide plate

Abstract

The utility model discloses an improved external lifting guide plate, which belongs to the technical field of dental medical instruments and comprises a fixing device and a guide plate, the fixing device can be fixed on a dentition of a patient, the guide plate is arranged on one side of the fixing device and can assist in stripping a maxillary sinus membrane, and an external lifting window frame is upwards arranged at the top of one side of a molar of the fixing device. An assembling and disassembling groove is formed in the middle of the outward lifting window frame, and the guide plate is fixed to the top of the assembling and disassembling groove and can penetrate through the assembling and disassembling groove to extend towards the inner side. According to the utility model, the outward lifting window frame is arranged on the fixing device, the assembling and disassembling groove is formed in the outward lifting window frame, and the guide plate can be mounted at the top of the assembling and disassembling groove. By means of matched connection between the guide plate and the outward-lifting windowing frame, the range and angle of windowing can be defined, it is guaranteed that an operation can be accurately operated, and errors are avoided in the operation process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of improved external lifting guide plate, belong to dental medical instrument technical field. BACKGROUND

[0002] Maxillary sinus external lifting surgery is a kind of oral surgery, when the vertical bone mass of maxillary posterior tooth area is insufficient to support implant, surgery provides sufficient bone mass for implant by lifting maxillary sinus bottom position.In the surgery, a window is needed to be opened on the lateral wall of maxillary bone to enter maxillary sinus;The mucosa of maxillary sinus (i.e. sinus floor membrane) is carefully lifted upward at the opened window;Artificial bone powder or autogenous bone is implanted in the lifted space to promote new bone formation;After surgery, the incision is sutured, and bone integration is waited.

[0003] In the step of opening a window on the lateral wall of maxillary bone, the position, angle and depth of window opening need to be determined and guided to avoid damaging the sinus floor membrane or surrounding anatomical structures.The existing window opening method needs to judge the upper edge, lower edge, height, front-back length of window opening by the experience of doctors, and doctors are difficult to open a window with appropriate depth and angle, which may cause errors and increase the risk of surgery.When the window is not properly opened, complications such as sinus floor membrane perforation and tearing may occur, affecting the effectiveness of surgery and bone integration.During the surgery, it is difficult to achieve precise implantation of implant while lifting the sinus floor, and the two steps need to be completed in stages.

[0004] Therefore, it is necessary to design an improved external lifting guide plate to increase the precision, efficiency and stability of maxillary sinus external lifting surgery. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model lies in: provide an improved external lifting guide plate, which solves the problems of insufficient precision, efficiency and stability during maxillary sinus external lifting surgery.

[0006] The technical problem to be solved by the utility model is realized by the following technical scheme: an improved external lifting guide plate, comprising

[0007] Fixing device, guide plate,

[0008] The fixing device can be fixed on the dentition of patient, and the guide plate is arranged on one side of the fixing device, which can assist in stripping the maxillary sinus membrane,

[0009] The fixing device is provided with an external lifting window frame on the top of the molar side, and the external lifting window frame is provided with an assembly and disassembly groove in the middle,

[0010] The guide plate is fixed on the top of the assembly and disassembly groove, and the guide plate can extend inward through the assembly and disassembly groove.

[0011] Preferably, the bottom of the fixed device on the molar side is provided with an outer extraction implantation hole.

[0012] Preferably, the side of the outer extraction implantation hole is provided with an in-situ observation window.

[0013] Preferably, the top of the outer extraction window frame is provided with a fixing hole for fixing the guide plate.

[0014] Preferably, one side of the guide plate is provided with an outwardly extending mounting plate, and the mounting plate is provided with a protrusion matched with the fixing hole.

[0015] Preferably, the fixed device obtains the patient's craniofacial hard tissue data through CT scanning, and is made according to the patient's craniofacial hard tissue data.

[0016] The beneficial effects of the utility model are:

[0017] (1) Through the utility model, the outer extraction window frame is arranged on the fixed device, the assembly and disassembly groove is arranged on the outer extraction window frame, and the guide plate can be installed on the top of the assembly and disassembly groove. Through the cooperation and connection between the guide plate and the outer extraction window frame, the range and angle of windowing can be clearly determined, the operation can be accurately operated, and errors can be avoided in the process of operation.

[0018] (2) Through the utility model, the inner side of the guide plate extends to the inside of the patient's dentition, the guide plate can assist in opening the maxillary sinus membrane, provide support for the patient, and reduce the overall operation difficulty and risk of operation. The outer extraction implantation hole is arranged on the bottom of the fixed device, the outer extraction implantation hole can guide the implantation of the implant, and the implantation position and angle of the implant are accurate.

[0019] (3) Through the utility model, the fixed device adopts CT scanning to obtain the patient's craniofacial hard tissue data, and is made according to the patient's craniofacial hard tissue data, so that the fixed device can be fixed on the patient's dentition, and the deviation accident can be avoided in the process of operation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the utility model.

[0021] Figure 2 It is a bottom structure schematic view of the utility model.

[0022] Figure 3 It is a side surface structure schematic view of the fixed device of the utility model.

[0023] Figure 4 It is a side surface installation schematic view of the utility model.

[0024] Figure 5It is a front structure schematic view of the utility model.

[0025] In the figure: 1 - fixing device, 11 - external lifting synchronous planting hole, 12 - in place observation window, 13 - external lifting window frame, 131 - fixing hole, 2 - guide plate, 21 - mounting plate. DETAILED DESCRIPTION

[0026] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0027] Embodiment 1

[0028] As Figures 1-5 Indicated.

[0029] An improved external lifting guide plate, comprising a fixing device 1 and a guide plate 2, the guide plate 2 is arranged on one side of the fixing device 1, and the guide plate 2 can assist in opening the maxillary sinus membrane.

[0030] Referring to Figure 1 , Figure 2 , the fixing device 1 can be fixed on the dentition of the patient, the overall structure of the fixing device 1 is consistent with the dentition structure of the patient, the fixing device 1 can be fixed on the dentition of the patient as a whole, and the stability during the operation process is ensured. The fixing device 1 is provided with a groove which is the same as the shape of the patient's dentition, and the fixing device 1 can be fixed on the patient's dentition through the groove, and the overall fixing device 1 only covers the patient's dentition and does not contact the patient's gums.

[0031] Referring to Figure 3 , the fixing device 1 is provided with an external lifting window frame 13 extending upwards on the top of the molar side of the patient, and the overall shape of the external lifting window frame 13 is rectangular. An assembly and disassembly groove is arranged on the side surface of the external lifting window frame 13, and the external lifting window frame 13 is used for supporting the guide plate 2 and assisting in the window opening operation.

[0032] The structure of the assembly and disassembly groove is rectangular, and the guide plate 2 can be fixed on the top of the assembly and disassembly groove; the guide plate 2 can pass through the assembly and disassembly groove and extend into the interior of the assembly and disassembly groove. During the window opening process, the guide plate 2 can guide the maxillary sinus membrane to be stripped.

[0033] Referring to Figure 2 , Figure 3 , the fixing device 1 is provided with an external lifting synchronous planting hole 11 at the bottom, and the external lifting synchronous planting hole 11 is arranged at the bottom of the fixing device 1 and located at the bottom of the molar of the patient. The external lifting synchronous planting hole can be used for implanting the implant during the window opening operation, which can speed up the operation efficiency and reduce the operation time of the patient.

[0034] Referring to Figure 2 , Figure 3 ,Figure 4 The in-situ observation window 12 is arranged at the edge of the external extraction simultaneous implantation hole 11, and is arranged on the side of the simultaneous implantation hole 11. The in-situ observation window 12 is a notch opened on the bottom of the fixing device 1, and the bottom of the patient's teeth can be exposed in the field of view through the notch. Whether the installation position of the fixing device 1 is correct can be determined by observing the position of the patient's teeth. The position of the external extraction simultaneous implantation hole 11 or the external extraction window frame 13 deviates, which affects the surgical effect of the patient.

[0035] Referring to Figure 3 , Figure 4 The fixing hole 131 is arranged on the external extraction mounting frame 13 of the fixing device 1, and is arranged on the top of the assembly and disassembly groove. The fixing hole 131 is symmetrically arranged, and the fixing hole 131 can fix the guide plate 2.

[0036] Referring to Figure 1 , Figure 4 , Figure 5 One side of the guide plate 2 is provided with an outwardly extending mounting plate 21, and the mounting plate 21 is provided with a protrusion close to one side of the guide plate 2. In this embodiment, the structure of the protrusion is consistent with that of the fixing hole 131. The guide plate 2 can be connected and fixed with the fixing hole 131 of the external extraction window frame 13 of the fixing device 1 through the protrusion on the mounting plate 21, so as to fix the guide plate 2 on the top of the external extraction window frame 13. The bottom of the external extraction window frame 13 also has a certain gap, and the gap can ensure that the surgical process can normally observe the condition of the surgical area of the patient.

[0037] In this embodiment, for the patient who needs to perform the windowing maxillary sinus floor lifting surgery, the patient's craniofacial hard tissue data of the patient is first scanned by using CT scanning, and the data of the patient's dentition and soft tissue is removed by using an intraoral scanner. The obtained data is imported into a design software to determine the maxillary sinus lifting, and the lifting range and height are determined. The fixing device 1 is made according to the craniofacial hard tissue data and soft tissue data of the patient, and the external extraction window frame 13, the external extraction simultaneous implantation hole 11 and the in-situ observation window 12 arranged on the fixing device 1 are made according to the set parameters.

[0038] In this embodiment, the fixing device 1 can be fixed on the patient's dentition to provide support and ensure stability, so as to avoid loosening or displacement of the guide plate during the surgery. The specific fixing mode is that the fixing device 1 is highly attached to the patient's dentition to realize stable support and ensure that the fixing device 1 does not deviate during the surgery.

[0039] The external extraction window frame 13 is arranged on the top of the fixing device 1, and the external extraction window frame 13 can determine the range and position of the windowing, and at the same time provide the assembly and disassembly groove. The assembly and disassembly groove can fix the guide plate 2 and provide support for the guide plate 2.

[0040] An external lifting simultaneous implantation hole 11 is provided at the bottom of the fixation device 1, and an placement observation window 12 is also provided on the side of the external lifting simultaneous implantation hole 11. The placement observation window 12 can confirm the fixation status of the fixation device 1 on the patient's dentition. The external lifting simultaneous implantation hole 11 allows for implant placement during the patient's maxillary sinus lift surgery, avoiding implant displacement or incorrect angle during implantation.

[0041] A guide plate 2 is installed at the top of the assembly / disassembly slot. The guide plate 2 assists in the dissection of the maxillary sinus membrane and reduces the risk of sinus floor membrane tearing, ensuring patient safety.

[0042] This embodiment solves the problems of inaccurate fenestration, high risk of sinus floor membrane dissection, and difficulty in simultaneous implant placement in traditional maxillary sinus external lift surgery. This device, through the synergistic effect of the fixation device 1, the external lift fenestration frame 13, the guide plate 2, and the placement observation window 12, achieves a more efficient, safe, and precise surgical procedure, while also improving the long-term stability and success rate of the implant.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An improved external lifting guide plate, comprising: Fixing device, guide plate, The fixation device can be fixed to the patient's dentition. A guide plate is provided on one side of the fixation device to assist in the dissection of the maxillary sinus membrane. Its features are: The fixing device has an outwardly lifting window frame installed on the top of the molar side, and the outwardly lifting window frame has an assembly and disassembly groove in the middle. The guide plate is fixed to the top of the assembly / disassembly slot and can extend inward through the assembly / disassembly slot.

2. The improved external lifting guide plate according to claim 1, characterized in that: The bottom of the molar side of the fixation device is provided with an external lifting simultaneous implantation hole.

3. The improved external lifting guide plate according to claim 2, characterized in that: The side of the externally protruding simultaneous implantation hole is provided with an observation window for placement.

4. The improved external lifting guide plate according to claim 1, characterized in that: The top of the outward-opening window frame is provided with fixing holes for fixing the guide plate.

5. The improved external lifting guide plate according to claim 4, characterized in that: A mounting plate extending outward is provided on one side of the guide plate, and the mounting plate is provided with protrusions that mate with the fixing holes.

6. The improved external lifting guide plate according to claim 1, characterized in that: The fixation device is fabricated based on the patient's craniofacial hard tissue data obtained through CT scans.

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