Maxillary sinus external lifting positioning and implant implantation simultaneous guiding device

Abstract

The utility model discloses a device for synchronously guiding implant implantation by lifting and positioning outside the maxillary sinus, which relates to the technical field of medical supplies and comprises a lifting guide plate outside the maxillary sinus, an implantation guide plate and a retention clamping plate, and the lifting guide plate outside the maxillary sinus is integrally connected with the retention clamping plate and the implantation guide plate; a reserved window is formed in the maxillary sinus outer lifting guide plate and is used for surgical positioning; a guide hole is formed in the implantation guide plate, the guide hole is used for guiding an implant to be implanted, and a water conveying hole is formed in the guide hole and used for cooling the prepared hole; the retention clamping plate wraps the maxillary teeth on the two sides of the tooth missing area, so that the whole device is fixed, a positioning window is formed in the position, attached to the tooth tip, of the retention clamping plate, and whether the retention clamping plate is completely clamped in place or not is checked through the positioning window. The device can be used for external lifting of the maxillary sinus and can also guide implantation of the implant at the same time, the surgical operation is simple and convenient, the difficulty is low, and the time of a doctor in the surgical process is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical supplies technical field, concretely relates to a device of maxillary sinus outer lifting positioning simultaneous period guiding implantation of implant. BACKGROUND

[0002] In recent years, oral implantation repair has become the routine repair method of patients with missing teeth. However, due to insufficient bone mass, implantation repair in the maxillary posterior tooth area often faces challenges. Maxillary sinus lifting lifts the maxillary sinus mucosa and implants bone powder to make the available bone height meet the implantation of the implant. Maxillary sinus lifting is divided into two types according to the surgical approach: one is lateral wall windowing maxillary sinus outer lifting, and the other is through the alveolar crest top inner lifting. When the bone mass height is severely insufficient, lateral wall windowing maxillary sinus outer lifting is needed. The maxillary sinus structure is complex, the sinus wall is of different thickness, and there are rich blood vessels in the outer wall of the maxillary sinus. Therefore, lateral wall windowing maxillary sinus lifting is difficult, the operation time is long, the lifted position and the actual implanted position may have certain errors, and the requirements for the surgeon are high, and experienced doctors are needed to complete the operation.

[0003] With the existing technology, individualized auxiliary guide plates can be prepared for different patients to ensure the matching of the auxiliary guide plates with different patients and improve the accuracy of maxillary sinus outer lifting surgery. Especially for complex maxillary sinus anatomical structure, blood vessels can be avoided, the windowing position and size can be accurately opened, and the patient's mouth opening time and discomfort can be reduced. However, the existing guide plate has the following problems: (1) the existing maxillary sinus outer lifting windowing positioning guide plate cannot be implanted simultaneously, and there is a risk factor of mismatching between the implantation position and the lifting position; (2) the spliced maxillary sinus outer lifting positioning simultaneous implantation guide plate cannot guarantee the accuracy of the interface position processing process, there is an error factor, and there is a risk of position deviation. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the insufficient of prior art, provides a device of maxillary sinus outer lifting positioning simultaneous period guiding implantation of implant.

[0005] The utility model aims at overcoming the insufficient of prior art, provides a device of maxillary sinus outer lifting positioning simultaneous period guiding implantation of implant.

[0006] The device for maxillary sinus lateral wall lifting, positioning and guiding implantation of implant simultaneously comprises a maxillary sinus lateral wall lifting guide plate, an implant guide plate and a retaining plate, the maxillary sinus lateral wall lifting guide plate is integrally connected with the retaining plate and the implant guide plate, the maxillary sinus lateral wall lifting guide plate is provided with a reserved window for surgical positioning, the implant guide plate is provided with a guide hole for guiding implantation of the implant, and the guide hole is provided with a water delivery hole for hole cooling.

[0007] The inner wall of the guide hole is provided with an inner thread matched with the implant, so as to ensure accuracy of implantation position.

[0008] The inner side of the maxillary sinus lateral wall lifting guide plate is attached to the surface of the lateral wall of the human maxillary sinus, the size of the maxillary sinus lateral wall lifting guide plate is adapted to the maxillary sinus lifting area, and the maxillary sinus lateral wall lifting guide plate is close to the alveolar crest top, and a gap is reserved between the alveolar crest top and the buccal side bone wall to prevent entering the undercut area.

[0009] The size of the reserved window is matched with the implantation position of the implant, the size of the implant bone and the number of implants, and the lower edge of the reserved window is located at 1.0-3.0mm above the bottom of the maxillary sinus.

[0010] The retaining plate can be further provided with a retaining hole.

[0011] The retaining plate is used for retaining 5-7 natural teeth or crown restorations.

[0012] The device has the advantages that:

[0013] The device is designed according to the characteristics of maxillary sinus lateral wall lifting and the functional characteristics of implantation, the maxillary sinus lifting and the simultaneous implantation of the implant are realized, the design of the water delivery hole can also greatly reduce the risk of bone burn, the operation is simple and convenient, the difficulty is low, the time of the operation process of the doctor is reduced, the risk of muscle contusion caused by long-time large opening of the patient is reduced, the integrated design and processing method replace the existing splicing type segmented processing method, the multifunctionality is realized, the multi-material processing method can be applied to more patient conditions, the most suitable material is selected according to the case to process, so that the risk is controlled and the comfort of the patient is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is an implantation schematic view of the implant;

[0015] Fig. 2 It is a structural schematic view of the device;

[0016] In the figure, 1 is a maxillary sinus lateral wall lifting guide plate, 2 is a reserved window, 3 is an implant guide plate, 4 is a guide hole, 5 is an implant, 6 is a water delivery hole, 7 is a retention clamping plate, and 8 is a positioning window. DETAILED DESCRIPTION

[0017] The technical scheme of the utility model will be described below in connection with the embodiments, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0018] Referring to Figs. 1-2 The utility model provides a technical scheme:

[0019] The device for maxillary sinus lateral wall lifting positioning and simultaneous guiding implantation of an implant includes a maxillary sinus lateral wall lifting guide plate 1, an implant guide plate 3, and a retention clamping plate 7. The maxillary sinus lateral wall lifting guide plate 1 is integrally connected with the retention clamping plate 7 and the implant guide plate 3 on the buccal side of the edentulous area. The maxillary sinus lateral wall lifting guide plate 1 is provided with a reserved window 2 at the maxillary sinus lateral wall. The size of the reserved window 2 is related to the implant position, the bone graft amount, and the number of implants. The lower edge of the reserved window 2 is located 1.0-3.0 mm above the maxillary sinus bottom. The inner side of the maxillary sinus lateral wall lifting guide plate 1 is attached to the surface of the human maxillary sinus lateral wall. The size of the maxillary sinus lateral wall lifting guide plate 1 is adapted to the maxillary sinus lifting area. The maxillary sinus lateral wall lifting guide plate 1 is close to the alveolar crest. A gap is reserved between the alveolar crest and the buccal bone wall to avoid entering the undercut area, so that the maxillary sinus lateral wall lifting guide plate 1 can be smoothly positioned. When the reserved window 2 is opened, the position of the maxillary sinus lower edge and the maxillary sinus bony septum is determined. If the maxillary sinus has a bony septum, reserved windows 2 are provided on both sides of the bony septum. The lower edge of the reserved window 2 is located above the maxillary sinus lower edge. At this time, the number of reserved windows 2 is also related to the number of bony septa. The size of the window is determined according to the bone graft amount, the position, and the number of implants. The reserved window 2 is provided on both sides of the maxillary bony septum to position the surgical site in advance, which can reduce surgical trauma, reduce the risk of maxillary sinus mucosa perforation, and reduce the requirements for the surgeon, thereby increasing the popularization of maxillary sinus lifting.

[0020] The implant guide plate 3 is designed according to the position of the future crown restoration to realize implantation of the implant 5 guided by restoration, guide the implant 5 to be implanted into the best position, and make the implant guide plate 3 plastic into the shape of the edentulous area at the edentulous site. The implant guide plate 3 is provided with a guide hole 4 at the implant site of the implant 5 for guiding the implant 5 to be implanted. The inner wall of the guide hole 4 is provided with threads matched with the implant 5 to ensure the accuracy of the implant 5 implantation position. The guide hole 4 is provided with a water delivery hole 6 on the buccal side. The water delivery hole 6 can increase the cooling effect when the drill bit is drilled, reduce the risk of bone burn caused by friction and heat generated by the drill bit, and the area of the water delivery hole 6 is 2-4 mm³.

[0021] The retention plate 7 is integrally connected with the maxillary sinus lateral wall lifting guide plate 1 and the implant 5 implantation guide plate 3, and the retention plate 7 accumulates 5-7 natural teeth or crown restorations, avoids surgical errors caused by the movement of auxiliary guide plates during the operation, and can increase retention holes as necessary to reduce surgical errors. The inner side of the retention plate 7 is in close contact with the occlusal surfaces of the teeth on both sides of the edentulous area and wraps around the tooth crown, thereby fixing the retention plate 7 on the teeth. The inner side of the retention plate 7 is in close contact with the tooth crown surface of the teeth on both sides of the edentulous area, which is beneficial to retention and convenient to take and wear. The retention plate 7 is provided with a positioning window 8 at the tooth tip position, and the positioning window 8 is used to check whether the retention plate 7 is completely clamped and positioned.

[0022] The entire maxillary sinus lateral wall lifting positioning and simultaneous implantation guide plate is an integral structure, which is made of three-dimensional printing technology or cutting technology and is made of resin material or other high polymer materials, and the thickness is 1.5mm-3mm. It can be used for various retention methods such as tooth support type, mucosa support type, and tooth and mucosa mixed support type. When it is a mucosa support type, the positioning window 8 is provided at the mucosa part.

[0023] In the embodiment, the maxillary sinus lateral wall lifting guide plate 1 is made on the jaw bone, and the implantation guide plate 3 is made on the digital dental model. Before the design of the device, the digital dental model and the jaw bone information need to be fitted to form a whole.

[0024] The specific process is as follows:

[0025] Firstly, the patient is photographed by CBCT, which is in DICOM format; the patient's dental information is obtained by intraoral scanning or plaster model scanning, which is in STL format;

[0026] Secondly, the CBCT data and the STL data are imported into the 3shape software for three-dimensional simulation design, the dental data is pre-planned in the pre-restoration design function, so that the crown restoration dental data can be obtained;

[0027] Thirdly, the jaw bone data and the STL data are fitted to generate fitting data; the implant 5 is virtually designed in the appropriate position in the edentulous area in a restoration-oriented manner, and a suitable guide ring is selected. The retention plate 7 is generated by selecting the adjacent tooth positions in the edentulous area.

[0028] Fourthly, in the guide plate design interface, the pre-implantation implant 5 and the jaw bone information are used to open the reserved window 2 at the lateral wall of the maxillary sinus according to the surgical plan, the weak area can be increased with a reinforcing support, the positioning window 8 is set at the tooth tip part or the mucosa part, the water inlet hole 6 is set at the guide hole 4 position, and the thickness of the device is 2mm. The production of the integral maxillary sinus lateral wall lifting positioning and simultaneous implantation guide plate is completed.

[0029] In the fifth step, the device is saved in STL format and printed by a three-dimensional printing device to obtain a device for integrated maxillary sinus lifting, positioning, simultaneous guiding and implanting.

[0030] The above merely describes preferred embodiments of the present application, and it should be understood that the present application is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concepts described herein by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims of the present application.

Claims

1. A device for maxillary sinus floor augmentation positioning and simultaneous guiding implant placement, characterized in that: The device comprises a maxillary sinus outer lifting guide plate (1), an implant guide plate (3) and a retention clamping plate (7), the maxillary sinus outer lifting guide plate (1) is integrally connected with the retention clamping plate (7) and the implant guide plate (3); the maxillary sinus outer lifting guide plate (1) is provided with a reserved window (2) for surgical positioning; the implant guide plate (3) is provided with a guide hole (4) for guiding the implantation of an implant (5), the guide hole (4) is provided with a water delivery hole (6) for hole cooling; the retention clamping plate (7) is wrapped on the maxillary teeth on both sides of the edentulous area, thereby fixing the entire device, the retention clamping plate (7) is provided with a positioning window (8) at the tooth tip part of the fitting tooth, and the positioning window (8) is used to check whether the retention clamping plate (7) is completely clamped and positioned.

2. The apparatus of claim 1, wherein: The inner wall of the guide hole (4) is provided with an inner thread matched with the implant (5).

3. The apparatus of claim 1, wherein: The inner side of the maxillary sinus outer lifting guide plate (1) is fitted to the surface of the lateral wall of the human maxillary sinus, the size of which is adapted to the maxillary sinus lifting area, and the maxillary sinus outer lifting guide plate (1) is close to the alveolar crest, a gap is reserved between the alveolar crest and the buccal bone wall to prevent entering the undercut area.

4. The apparatus of claim 1, wherein: The size of the reserved window (2) is matched with the implant position, the size of the implant bone and the number of implants, and the lower edge of the reserved window (2) is located 1.0-3.0mm above the maxillary sinus bottom.

5. The apparatus of claim 1, wherein: The retention clamping plate (7) is further provided with a retention hole.

6. The apparatus of claim 1, wherein: The retention clamping plate (7) is accumulated with 5-7 natural teeth or crown restorations.

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