Guide plate device for auxiliary implantation of 3D printing personalized planting carrier

Abstract

The invention discloses a guide plate device for auxiliary implantation of a 3D printing personalized planting carrier, and relates to the field of medical instruments for false tooth planting, an implantation sleeve is fixed in the middle of a guide plate, a positioning structure for insertion and positioning of a carrier body is arranged in the implantation sleeve, a screw is in threaded connection with the interior of the carrier body, and the screw is in threaded connection with the guide plate. A rod body of the screw coincides with the central axis of the carrying body, and a personalized implant is arranged below the carrying body; the guide plate is printed in a 3D mode, the guide plate is made of medical photosensitive resin and can be matched with teeth of a patient, the guide plate is fixed in the oral cavity, and in the sexual dental implant operation in-place process, the guide plate can guide an implant to be implanted according to the correct direction angle, so that the implant is implanted into an ideal site. The step-shaped platform at the bottom end of the personalized implant can shoot CBCT (cone beam computed tomography) before an operation and design height to limit the implantation depth of the implant, and the depth can be accurately controlled.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology for dental implants, specifically relating to a guide plate device for assisted implantation of a 3D-printed personalized implant carrier. Background Technology

[0002] 3D printing technology can provide a personalized anatomical dental implant that matches the patient's physiological structure. It can be implanted immediately after tooth extraction or in the shortest possible time. It also ensures that the personalized anatomical dental implant can form good contact and interlocking with the alveolar socket when implanted into the alveolar bone, thereby improving the efficiency of osseointegration.

[0003] However, unlike conventional cylindrical or conical implant placement methods, personalized implants require placement into the alveolar socket via percussion. Without suitable auxiliary tools, the immense force of the percussion is difficult to control, and without direct visualization of the implant site, deviations in placement direction, angle, and depth can easily occur, leading to implant failure.

[0004] Chinese patent CN218899745U discloses a 3D-printed implant abutment carrying and positioning tool assembly, relating to the field of dental implant instrument technology. It includes an abutment carrying and positioning device and a screwdriver. The abutment carrying and positioning device is connected to the implant abutment at its lower part. A through-hole is formed in the middle of the implant abutment, and an abutment screw is installed at the bottom of the hole. The abutment carrying and positioning device includes a grip and a gingival end, with the gingival end inserted into the mounting hole. A through-hole for the screw is also formed in the middle of the abutment carrying and positioning device. After the 3D-printed abutment carrying and positioning device and the implant abutment are positioned on the model, the abutment screw and screwdriver are also in place. The screwdriver consists of a handle and a shank. The top of the abutment screw has a groove, and the shank matches the groove. The screwdriver can be used to tighten and fix the abutment screw, thereby securing the implant abutment to the model. This is practical and suitable for widespread promotion and use.

[0005] The positioning device has a locator structure that is common to conventional denture processing locators. However, it cannot fit human teeth and is only suitable for denture processing. It cannot be used for precise positioning of denture implantation. Summary of the Invention

[0006] The purpose of this invention is to provide a guide plate device for 3D printed personalized implant carriers to assist in implantation, so as to solve the problem of the implant being unable to be accurately positioned and placed during the personalized implantation process mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A guide plate device for assisted implantation of a 3D-printed personalized implant carrier includes a carrier body, a guide plate, and an external clamping clamp. The carrier body is inserted into the guide plate, and an implantation sleeve is fixed in the middle of the guide plate. The implantation sleeve is provided with a positioning structure for inserting and positioning the carrier body. A screw is internally threaded into the carrier body, and the shank of the screw coincides with the central axis of the carrier body. A personalized implant is disposed below the carrier body.

[0009] The positioning structure includes a positioning groove and a positioning boss. The positioning groove is formed on the inner wall of the implantation sleeve, and the positioning boss is fixed to the bottom end of the carrier body. The positioning boss is inserted into the positioning groove.

[0010] Preferably, the carrier body includes an implant connection part, and an auxiliary implantation part, a clamping force-applying part, a clamping part and a force-applying part are sequentially arranged above the implant connection part. The positioning boss is fixed to the outer wall of the auxiliary implantation part. A screw hole is opened in the carrier body. The bottom end of the screw passes through the force-applying part, the clamping part and the clamping force-applying part in sequence and is located in the auxiliary implantation part.

[0011] Preferably, the clamping force-applying part is configured as a metal conical column, and the length of the carrier body is set to 4.5-5.5mm.

[0012] Preferably, the personalized implant has a groove inside, and both the groove and the implant connection part are stepped, with the implant connection part inserted into the groove.

[0013] Preferably, the top of the screw has a first internal hexagonal groove, and the bottom of the groove has a second internal hexagonal groove.

[0014] Preferably, the width of the positioning boss is 0.9mm-1.1mm, and the side of the positioning boss away from the auxiliary implantation part is arc-shaped.

[0015] Preferably, both the force-applying part and the clamping force-applying part are cylindrical, the clamping force-applying part and the force-applying part have the same diameter, and the diameter of the force-applying part is set to 4.9-5.1mm.

[0016] Preferably, the inner diameter of the screw is 0.8-1.2mm, the top of the screw is cylindrical, and the outer diameter of the top of the screw is 0.4-0.6mm.

[0017] Preferably, the guide plate is a resin plate, and the thickness of the guide plate is set to 25-30mm.

[0018] Preferably, the thickness of the implantation sleeve is set to 1.9mm-2.1mm, and the width of the positioning groove is set to 0.45mm-0.55mm.

[0019] The present invention proposes a guide plate device for assisted implantation of 3D-printed personalized implant carriers, which has the following advantages compared with the prior art:

[0020] 1. This invention uses a 3D-printed guide plate made of medical-grade photosensitive resin, which can fit the patient's teeth. The guide plate is fixed in the oral cavity, and during the personalized dental implant surgery, the guide plate can guide the implant to be inserted in the correct direction and angle, so that the implant is inserted into the ideal site.

[0021] 2. The stepped platform at the bottom of the personalized implant of the present invention can be designed to limit the implant depth by taking CBCT before surgery. The depth can be precisely controlled, and the implant can form good contact and interlocking with the alveolar socket, thereby improving the osseointegration efficiency. Attached Figure Description

[0022] Figure 1 This is an isometric view of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the carrier body of the present invention;

[0024] Figure 3 This is a schematic diagram of the guide plate of the present invention;

[0025] Figure 4 This is a cross-sectional view of the carrier body of the present invention;

[0026] Figure 5 This is a top view of the carrier body of the present invention;

[0027] Figure 6 This is a cross-sectional view of the guide plate of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the personalized implant of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the second internal hexagonal groove of the present invention;

[0030] Figure 9 This is a schematic diagram of the screw structure of the present invention;

[0031] Figure 10 This is a top view of the implantation sleeve of the present invention;

[0032] Figure 11 This is a schematic diagram of the implantation sleeve of the present invention;

[0033] Figure 12 This is a schematic diagram of the structure of the first internal hexagonal groove of the present invention.

[0034] In the diagram: 1. Carrier body; 2. Guide plate; 3. External clamping forceps; 4. Implantation sleeve; 5. Positioning structure; 6. Screw; 7. Personalized implant; 501. Positioning groove; 502. Positioning boss; 101. Implant connection part; 102. Auxiliary implantation part; 103. Clamping force-applying part; 104. Clamping part; 105. Force-applying part; 106. Screw hole; 701. Groove; 601. First internal hexagonal groove; 702. Second internal hexagonal groove. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] This invention provides, for example Figure 1-12 The device shown is a guide plate for assisted implantation of a 3D printed personalized implant carrier, including a carrier body 1, a guide plate 2 and an external clamping clamp 3. The carrier body 1 is inserted into the guide plate 2. An implantation sleeve 4 is fixed in the middle of the guide plate 2. A positioning structure 5 for inserting and positioning the carrier body 1 is provided in the implantation sleeve 4. A screw 6 is threadedly connected to the carrier body 1. The shank of the screw 6 coincides with the central axis of the carrier body 1. A personalized implant 7 is provided below the carrier body 1.

[0037] The positioning structure 5 includes a positioning groove 501 and a positioning boss 502. The positioning groove 501 is formed on the inner wall of the implantation sleeve 4, and the positioning boss 502 is fixed to the bottom end of the carrier body 1. The positioning boss 502 is inserted into the positioning groove 501.

[0038] The guide plate 2 is shaped to match the patient's missing dentition and is a tooth-supporting type. The 3D-printed guide plate 2 is designed by computer and has a window at the implant site. The window includes part of the adjacent tooth. The shape of the window is consistent with the shape of the auxiliary implant part 102 of the carrier body 1, leaving a 2mm space to match the implant sleeve 4.

[0039] The carrier body 1 includes an implant connection part 101. An auxiliary implantation part 102, a clamping force-adding part 103, a clamping part 104 and a force-applying part 105 are arranged sequentially above the implant connection part 101. A positioning boss 502 is fixed to the outer wall of the auxiliary implantation part 102. A screw hole 106 is opened in the carrier body 1. The bottom end of the screw 6 passes through the force-applying part 105, the clamping part 104 and the clamping force-adding part 103 in sequence and is located in the auxiliary implantation part 102.

[0040] The implant connector 101 is shaped to match the internal shape of the personalized implant 7. It is held by external clamps 3 and subjected to tapping force on a platform to control the angle, direction, and depth of implantation, thus placing the implant at the ideal site. The inner diameter of the screw 6 is adapted to the outer diameter of the screw hole 106 inside the carrier body 1.

[0041] The clamping force-applying part 103 is configured as a metal cone-shaped body, and the length of the carrier body 1 is set to 4.5-5.5mm.

[0042] The carrier body 1 is made of smooth metal through mechanical cutting. Its shape matches the 3D-printed personalized implant 7.

[0043] The personalized implant 7 has a groove 701 inside. Both the groove 701 and the implant connection part 101 are stepped. The implant connection part 101 is inserted into the groove 701.

[0044] The top of the screw 6 has a first internal hexagonal groove 601, and the bottom of the groove 701 has a second internal hexagonal groove 702.

[0045] The positioning protrusion 502 has a width of 0.9mm-1.1mm, and the side of the positioning protrusion 502 away from the auxiliary implantation part 102 is arc-shaped. The height of the positioning protrusion 502 is calculated according to the predetermined implantation depth of the personalized implant 7, and the length of the positioning protrusion 502 is 1 / 8 of a circular arc.

[0046] Both the force-applying part 105 and the clamping force-applying part 103 are cylindrical. The clamping force-applying part 103 and the force-applying part 105 have the same diameter. The diameter of the force-applying part 105 is set to 4.9-5.1 mm.

[0047] The carrier body 1 and the implant system are clamped by the friction between the external clamping force 3; the clamping force application part 103 can help the personalized implant 7 be fully positioned by gently tapping the force application plane with the external force application device.

[0048] The inner diameter of screw 6 is 0.8-1.2mm, the top of screw 6 is cylindrical, and the outer diameter of the top of screw 6 is 0.4-0.6mm.

[0049] Guide plate 2 is made of resin and has a thickness of 25-30mm. Its shape matches the patient's missing dentition. Guide plate 2 is made of medical-grade photosensitive resin.

[0050] The thickness of the implantation sleeve 4 is set to 1.9mm-2.1mm, and the width of the positioning groove 501 is set to 0.45mm-0.55mm.

[0051] In use, a CBCT scan is taken preoperatively to design and confirm the implant placement direction, angle, depth, and implant platform shape. The carrier body 1 and the guide plate 2 for auxiliary implantation are 3D printed. During use, the 3D-printed auxiliary implantation guide plate 2 is first fixed in place according to the preoperative design using a tooth-supported fixation method. The carrier body 1 is connected to the personalized implant 7. The guide plate 2 is opened, and the positioning protrusion 502 of the carrier body 1 is aligned with the positioning groove 501 of the implantation guide plate 2. The personalized implant 7 is implanted by tapping the force part 105 until the force part 105 is fully inserted into the guide plate 2. At this point, the implant auxiliary implantation part 102 is implanted at the ideal site as designed. The screw 6 is removed, the carrier body 1 is dislocated, and the guide plate 2 is removed to complete the implant placement.

[0052] This device enables the implant to enter the implantation socket at the correct angle and direction, and controls the implantation depth through a limiting platform, thus achieving precise implantation of personalized implants.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A guide plate device for assisted implantation of a 3D-printed personalized implant carrier, characterized in that: The device includes a carrier body (1), a guide plate (2), and an external clamping clamp (3). The carrier body (1) is inserted into the guide plate (2). An implantation sleeve (4) is fixed in the middle of the guide plate (2). A positioning structure (5) for inserting and positioning the carrier body (1) is provided inside the implantation sleeve (4). A screw (6) is threaded into the carrier body (1). The shank of the screw (6) coincides with the central axis of the carrier body (1). A personalized implant (7) is provided below the carrier body (1). The positioning structure (5) includes a positioning groove (501) and a positioning boss (502). The positioning groove (501) is opened on the inner wall of the implantation sleeve (4), and the positioning boss (502) is fixed to the bottom end of the carrier body (1). The positioning boss (502) is inserted into the positioning groove (501).

2. The guide plate device for assisted implantation of a 3D-printed personalized implant carrier according to claim 1, characterized in that: The carrier body (1) includes an implant connection part (101). An auxiliary implantation part (102), a clamping force-adding part (103), a clamping part (104) and a force-applying part (105) are arranged sequentially above the implant connection part (101). The positioning boss (502) is fixed to the outer wall of the auxiliary implantation part (102). A screw hole (106) is opened in the carrier body (1). The bottom end of the screw (6) passes through the force-applying part (105), the clamping part (104) and the clamping force-adding part (103) in sequence and is located in the auxiliary implantation part (102).

3. The guide plate device for assisted implantation of a 3D-printed personalized implant carrier according to claim 2, characterized in that: The clamping force-applying part (103) is configured as a metal cone-shaped body, and the length of the carrier body (1) is configured as 4.5-5.5mm.

4. The guide plate device for assisted implantation of a 3D-printed personalized implant carrier according to claim 2, characterized in that: The personalized implant (7) has a groove (701) inside. The groove (701) and the implant connection part (101) are both set in a stepped shape. The implant connection part (101) is inserted into the groove (701).

5. The guide plate device for assisted implantation of a 3D-printed personalized implant carrier according to claim 4, characterized in that: The screw (6) has a first internal hexagonal groove (601) at the top and a second internal hexagonal groove (702) at the bottom of the groove (701).

6. The guide plate device for assisted implantation of a 3D-printed personalized implant carrier according to claim 2, characterized in that: The positioning boss (502) has a width of 0.9mm-1.1mm, and the side of the positioning boss (502) away from the auxiliary implantation part (102) is arc-shaped.

7. The guide plate device for assisted implantation of a 3D-printed personalized implant carrier according to claim 2, characterized in that: Both the force-applying part (105) and the clamping force-applying part (103) are cylindrical. The clamping force-applying part (103) and the force-applying part (105) have the same diameter. The diameter of the force-applying part (105) is set to 4.9-5.1 mm.

8. The guide plate device for assisted implantation of a 3D-printed personalized implant carrier according to claim 1, characterized in that: The inner diameter of the screw (6) is 0.8-1.2mm, the top of the screw (6) is cylindrical, and the outer diameter of the top of the screw (6) is 0.4-0.6mm.

9. The guide plate device for assisted implantation of a 3D-printed personalized implant carrier according to claim 1, characterized in that: The guide plate (2) is a resin plate, and the thickness of the guide plate (2) is set to 25-30mm.

10. The guide plate device for assisted implantation of a 3D-printed personalized implant carrier according to claim 1, characterized in that: The thickness of the implantation sleeve (4) is set to 1.9mm-2.1mm, and the width of the positioning groove (501) is set to 0.45mm-0.55mm.

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