Multi-unit scanning rod

Abstract

The utility model relates to the technical field of oral cavity medical instruments, in particular to a multi-unit scanning rod, which comprises a multi-unit scanning rod, a multi-unit scanning rod connecting arm, a central screw, a healing cap and a matched reverse scanning rod, the side wall of the multi-unit scanning rod is fixedly connected with the multi-unit scanning rod connecting arm, the central screw is arranged in the multi-unit scanning rod, and the healing cap is arranged in the matched reverse scanning rod. The multi-unit scanning rod is connected with the healing cap and the matched reverse scanning rod. According to the multi-unit scanning rod, the working difficulty of a doctor is reduced, the working time is shortened, meanwhile, a patient does not need to open the mouth for a long time, and the doctor seeing experience of the patient is improved. According to the method, data splicing errors caused by high consistency of soft tissue shapes and colors are avoided, the difficulty of oral scanning transfer of edentulous cases of clinics is reduced, the data accuracy is improved, and the trouble of high rework rate of the edentulous cases of false tooth processing factories is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral medical instruments, in particular to a multi-unit scanning rod. Background Art

[0002] There are several main operation methods for the existing edentulous jaw implant composite abutment restoration cases in the second stage of transfer:

[0003] 1. Transfer with composite transfer rod and silicone rubber tray: This type of transfer method is to connect the composite abutment with a transfer rod, use a silicone rubber tray to copy the intraoral environment to the model, and then make the restoration. Since the transfer rod is too long, the transfer rod may not be installed normally due to the limited opening of the patient's posterior teeth during the transfer process. At the same time, in order to ensure the accuracy of the transfer, all transfer rods need to be rigidly connected with steel wires and personalized trays need to be made for transfer. The whole process is relatively cumbersome, with many manual operations and large cumulative errors, which affects the final restoration effect.

[0004] 2. Transfer of traditional composite abutment intraoral scanning rod: This type of transfer method is to connect the composite abutment through the composite abutment intraoral scanning rod, use the intraoral scanner to scan and copy the intraoral environment, obtain a digital impression, and then make the restoration. Edentulous cases or cases with a large range of missing teeth. There are no teeth or only a few natural teeth on the maxillofacial surface, and the free end of the soft tissue is very large. At this time, due to the high similarity of the gingival shape and color, the image of each frame captured by the lens during the oral scan is not much different, and the intraoral scanner can capture very few judgment points. Computers often make splicing errors when splicing. Once the splicing is deformed, it will cause subsequent restoration failures. Because it is a full-mouth restoration, the rework cost is relatively high and the time cycle is long, which greatly affects the patient experience. Therefore, it is necessary to design a solution to the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-unit scanning rod, which has the advantages of simple operation and good patient experience, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a multi-unit scanning rod, including a multi-unit scanning rod, a multi-unit scanning rod connecting arm, a central screw, a healing cap, and a matching reverse scanning rod. The multi-unit scanning rod connecting arm is connected and fixed to the side wall of the multi-unit scanning rod, and the central screw is installed inside the multi-unit scanning rod to connect the multi-unit scanning rod with the healing cap and the matching reverse scanning rod.

[0007] This patented product is used in the second-stage transfer and restoration of edentulous composite abutment cases. After the first and second stages of the implant surgery are completed and the patient's oral condition is good, the transfer operation can be performed (copying the patient's oral condition onto the model). Before the transfer, the multi-unit scanning rod kit is sterilized with high temperature and high pressure. Then, according to the patient's actual situation and the straight-line distance between adjacent composite abutments, a multi-unit scanning rod with a suitable gingival penetration and a multi-unit scanning rod connecting arm of a suitable length are selected, and the multi-unit scanning rod connecting arm is locked on the multi-unit scanning rod. Then, the multi-unit scanning rod is fixed to the composite abutment in the patient's mouth by the central screw. As shown in the figure, after all the multi-unit scanning rods are installed, the intraoral scanning can be used to scan the patient's oral condition and obtain a digital impression. After the scan is completed, the multi-unit scanning rod is removed, and the matching healing cap is installed to protect the composite abutment interface. The digital impression is sent to the denture factory for restoration production. After the restoration is completed, the patient returns to the clinic, removes the matching healing cap, and installs the permanent restoration. If the patient has already made a temporary restoration bridge before permanent restoration, the temporary restoration bridge can be directly removed, and the matching reverse scanning rod can be connected to the interface of the temporary base. The temporary bridge is then reversely scanned extraorally to obtain the digital impression and send it to the denture factory for permanent restoration production, saving the patient the pain of secondary intraoral transfer.

[0008] Preferably, the multi-unit scanning rod has 12 models, including 8 transgingival 5mm scanning rods and 4 transgingival 7mm scanning rods. Each scanning rod is designed with a different number of digital feature points. A central screw hole is designed in the center of the scanning rod, which can be screw-fixed and connected to the composite base through the central screw. The side wall of the scanning rod is designed with M1.6X0.35 screw holes for installing the multi-unit scanning rod connecting arm. All models of scanning rods are surface roughened and titanium nitride coated.

[0009] Preferably, the multi-unit scanning rod connecting arm has five shapes according to the cross-section (circular, triangular, square, regular pentagon, regular hexagon), and the connecting arm of each cross-section is designed with three length specifications (10mm, 15mm, 20mm), totaling fifteen models, and all models of connecting arms are surface roughened and titanium nitride coated.

[0010] Preferably, the central screw is of one type, which is universal for all types of scanning rods and is used to connect the multi-unit scanning rod and the composite base.

[0011] Preferably, the healing cap is designed as a single piece and is used to be installed on the composite base after the scanning is completed to protect the upper repair interface of the composite base.

[0012] Preferably, the matching reverse scanning rod is designed to be used when the patient already has a temporary restoration. The matching reverse scanning rod can be connected to a temporary base of the existing temporary restoration for extraoral reverse scanning, and the position of the composite base restoration platform is digitally positioned to process a permanent restoration. This model of matching reverse scanning rods are all surface roughened and titanium nitride coated.

[0013] Compared with the prior art, the utility model provides a multi-unit scanning rod, which has the following beneficial effects:

[0014] 1. Compared with the transfer rod silicone rubber tray transfer, the multi-unit scanning rod can be used for intraoral scanning transfer, which can avoid the doctor's operation due to the limited opening of the patient's mouth, the transfer rod cannot be installed, all transfer rods must be rigidly connected, and personalized trays must be made. The cumbersome procedures such as reducing the doctor's work difficulty and working time, at the same time, the patient does not need to open his mouth for a long time, which improves the patient's medical experience.

[0015] 2. Compared with the traditional composite base intraoral scanning rod, the multi-unit scanning rod is designed with 12 models. Each model has its own data identification point, and is matched with 5 cross-sectional shapes and 3 length specifications of connecting arms. Matching two of them can present 180 combinations. This can avoid the problem of misjudgment of intraoral scanners during scanning due to the exact same shape of traditional intraoral scanning rods. At the same time, due to the presence of connecting arms of different shapes above the soft tissue, a large number of scanning feature points are added artificially, which greatly enhances the scanning continuity and avoids data splicing errors caused by highly consistent soft tissue shape and color. It reduces the difficulty of oral scanning transfer of edentulous cases in clinics, improves data accuracy, and eliminates the problem of high rework rate of restorations in edentulous cases in denture processing factories. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional demonstration diagram of the structure assembly structure of the utility model;

[0017] Figure 2 This is a demonstration diagram of the multi-unit scanning rod structure of the utility model;

[0018] Figure 3 This is a three-dimensional demonstration diagram of the multi-unit scanning rod connecting arm of the utility model structure;

[0019] Figure 4 It is the central screw of the multi-unit scanning rod of the utility model structure;

[0020] Figure 5 This is a structural healing cap of the utility model;

[0021] Figure 6 It is a reverse scanning rod of the utility model structure.

[0022] Including: 1. Multi-unit scanning rod; 2. Multi-unit scanning rod connecting arm; 3. Central screw; 4. Matching healing cap; 5. Matching reverse scanning rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: a multi-unit scanning rod, including a multi-unit scanning rod 1, a multi-unit scanning rod connecting arm 2, a central screw 3, a healing cap 4, and a matching reverse scanning rod 5. The multi-unit scanning rod connecting arm 2 is connected and fixed to the side wall of the multi-unit scanning rod 1, and the central screw 3 is installed inside the multi-unit scanning rod 1 to connect the multi-unit scanning rod 1 with the healing cap 4 and the matching reverse scanning rod 5.

[0025] This patented product is used in the second-stage transfer and restoration of edentulous composite abutment cases. After the first and second stages of the implant surgery are completed and the patient's oral condition is good, the transfer operation can be performed (copying the patient's oral condition onto the model). Before the transfer, the multi-unit scanning rod 1 kit is sterilized with high temperature and high pressure. Then, according to the actual situation of the patient and the straight-line distance between adjacent composite abutments, a multi-unit scanning rod 1 with a suitable gingival penetration and a multi-unit scanning rod connecting arm 2 with a suitable length are selected, and the multi-unit scanning rod connecting arm 2 is locked on the multi-unit scanning rod 1. Then, the multi-unit scanning rod 1 is fixed to the composite abutment in the patient's mouth by the central screw 3. Figure 6 As shown, after all the multi-unit scanning rods 1 are installed, the intraoral scanning can be used to scan the patient's intraoral situation to obtain a digital impression. After the scanning is completed, the multi-unit scanning rod 1 is removed, and the matching healing cap 4 is installed to protect the composite base interface. The digital impression is sent to the denture processing factory to start the restoration production. After the restoration is completed, the patient returns to the clinic, removes the matching healing cap 4, and installs the permanent restoration. If the patient has made a temporary restoration bridge before the permanent restoration, the temporary restoration bridge can be directly removed, and the matching reverse scanning rod 5 is connected to the interface of the temporary base. Then, the temporary bridge is reversely scanned extraorally to obtain a digital impression and send it to the denture processing factory for permanent restoration production, eliminating the pain of secondary intraoral transfer for the patient.

[0026] Specifically, the multi-unit scanning rod 1 has 12 models, including 8 transgingival 5mm scanning rods and 4 transgingival 7mm scanning rods. Each scanning rod is designed with a different number of digital feature points. A central screw 3 hole is designed in the center of the scanning rod, and the central screw 3 can be used to fix the composite base with a screw. The side wall of the scanning rod is designed with an M1.6X0.35 screw hole for installing the multi-unit scanning rod connecting arm 2. All models of scanning rods are surface roughened and titanium nitride coated.

[0027] Specifically, the multi-unit scanning rod connecting arm 2 has five shapes according to the cross-section, namely circular, triangular, square, regular pentagon and regular hexagon. The connecting arm of each cross-section is designed with three length specifications of 10mm, 15mm and 20mm, for a total of fifteen models. All models of connecting arms are surface roughened and titanium nitride coated.

[0028] Specifically, the central screw 3 is of one type and is universal for all types of scanning rods, and is used to connect the multi-unit scanning rod 1 and the composite base.

[0029] Specifically, the healing cap 4 is designed to be installed on the composite base after the scanning is completed to protect the upper repair interface of the composite base.

[0030] Specifically, the matching reverse scanning rod 5 is designed to be used when the patient already has a temporary restoration. The matching reverse scanning rod 5 can be connected to a temporary base of the existing temporary restoration for extraoral reverse scanning, and the position of the composite base restoration platform is digitally positioned, thereby processing a permanent restoration. This model of matching reverse scanning rod 5 is surface roughened and titanium nitride coated.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-unit scanning rod, comprising a multi-unit scanning rod (1), a multi-unit scanning rod connecting arm (2), a central screw (3), a healing cap (4), and a matching reverse scanning rod (5), characterized in that: The multi-unit scanning rod connecting arm (2) is connected and fixed to the side wall of the multi-unit scanning rod (1), and the central screw (3) is installed inside the multi-unit scanning rod (1) to connect the multi-unit scanning rod (1) with the healing cap (4) and the matching reverse scanning rod (5).

2. The multi-unit scanning rod according to claim 1, characterized in that: The multi-unit scanning rod (1) has 12 models, including 8 transgingival 5mm scanning rods and 4 transgingival 7mm scanning rods. Each scanning rod is designed with a different number of digital feature points. A central screw (3) hole is designed in the center of the scanning rod, and the central screw (3) can be used to perform screw retention connection with the composite base. The side wall of the scanning rod is designed with an M1.6X0.35 screw hole for installing the multi-unit scanning rod connecting arm (2). All models of scanning rods are surface roughened and titanium nitride coated.

3. The multi-unit scanning rod according to claim 1, characterized in that: The multi-unit scanning rod connecting arm (2) has five shapes according to the cross section: circular, triangular, square, regular pentagon, and regular hexagon. The connecting arm of each cross section is designed with three length specifications: 10mm, 15mm, and 20mm, with a total of fifteen models. All models of connecting arms are surface roughened and titanium nitride coated.

4. The multi-unit scanning rod according to claim 1, characterized in that: The central screw (3) is of one type and is universal for all types of scanning rods, and is used to connect the multi-unit scanning rod (1) and the composite base.

5. The multi-unit scanning rod according to claim 1, characterized in that: The healing cap (4) is designed as a single piece and is used to be installed on the composite base after scanning is completed, so as to protect the repair interface on the upper part of the composite base.

6. The multi-unit scanning rod according to claim 1, characterized in that: The matching reverse scanning rod (5) is designed to be used when the patient already has a temporary restoration. The matching reverse scanning rod (5) can be connected to a temporary base of the existing temporary restoration for extraoral reverse scanning, and the position of the composite base restoration platform is digitally positioned, thereby processing a permanent restoration. This model of matching reverse scanning rod (5) is subjected to surface roughening and titanium nitride coating treatment.

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