Dental implant fixator

Abstract

The invention discloses a dental implant fixator, and particularly relates to the technical field of dentistry, the dental implant fixator comprises an implant, an abutment and a connecting screw, the top of the implant is provided with a hexagonal hole, the abutment comprises a base body, the bottom of the base body is fixedly provided with a hexagonal block, the bottom of the hexagonal block is inserted into the hexagonal hole, and the connecting screw is connected with the hexagonal hole. And the connecting screw penetrates through the abutment and is in threaded connection with the implant. According to the dental implant fixator disclosed by the invention, the implant and the abutment are locked together in the mounting process of the connecting screw through the arranged anti-falling device, the implant and the abutment are prevented from loosening under the dual locking matching of the anti-falling component of the connecting screw, and meanwhile, the implant and the abutment are prevented from loosening due to the loosening of the connecting screw. The anti-loosening assembly is arranged outside the connecting screw, and the tooth socket matched with the anti-loosening assembly is arranged inside the implant, so that the connecting screw is prevented from loosening, and the connection stability between the abutment and the implant is further ensured.

Description

Technical Field

[0001] The invention relates to the technical field of dentistry, in particular to a dental implant fixture. Background Art

[0002] Implant restoration is a common dental restoration technology. Usually, dental implants, also known as "artificial tooth roots", are made of materials with good biocompatibility such as titanium or titanium alloys. They are implanted in the patient's edentulous jawbone to replace natural tooth roots and firmly support the upper crown. Traditional fixed bridge restoration technology may require damage to adjacent teeth, which is a destructive restoration. Therefore, the durability and stability of implant restoration are far greater than fixed bridge restoration.

[0003] In the process of installing a dental crown, the crown is usually installed on an implant, which plays the role of fixing the crown. The general implant structure is mainly composed of three parts: the implant, the base and the upper crown, in which the implant and the base are connected by connecting screws. Among them, the dental implant is implanted as the main component in the patient's toothless part to replace the natural tooth root for support and fixation. The stability of the implant determines the effect of implant restoration. After the dental implant is implanted, the threaded structure of the implant forms a self-locking with the surrounding bone tissue, so that the implant can obtain an initial stability, which is conducive to the formation of bone integration with the surrounding bone tissue in the later stage and obtain long-term stability.

[0004] Since the dental implant plays the role of supporting the implant, the vibration of the dental implant during long-term chewing and friction can easily cause the connecting screws to loosen, which in turn causes loosening between the implant and the implant. Therefore, we provide a dental implant fixture. Summary of the invention

[0005] The main purpose of the present invention is to provide a dental implant fixture, which can effectively solve the problem of loosening of connecting screws in the background art.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A dental implant fixture comprises an implant, a base and a connecting screw. A hexagonal hole is provided on the top of the implant. After an incision is made on the patient's gums, a thread that cooperates with a threaded portion is provided on the patient's alveolar bone using a tapping device. Then a hexagonal screwdriver is inserted into the inner hexagonal hole to implant the implant into the patient's alveolar bone. The base comprises a base. A hexagonal block is fixedly mounted on the bottom of the base. The bottom of the hexagonal block is inserted into the hexagonal hole. The hexagonal hole and the hexagonal block cooperate. During installation, an adhesive can be applied to the outer surface of the hexagonal block to bond the hexagonal block into the hexagonal hole to prevent loosening. The connecting screw passes through the base and is threadedly connected to the implant.

[0008] Preferably, a screw hole is provided at the bottom of the hexagonal hole, a through hole is provided at the bottom of the screw hole, a plurality of tooth grooves distributed up and down are provided on the side wall of the through hole, and a limiting hole is provided in the middle of each side wall of the hexagonal hole.

[0009] Preferably, the upper portion of the implant is a cylindrical structure, the lower portion of the implant is conical and has a threaded portion on the outer surface.

[0010] Preferably, a connecting hole is provided at the top of the base, thereby providing a larger adhesive adhesion space to facilitate the bonding and fixation of the crown, and a plug hole penetrating the bottom of the hexagonal block is provided at the bottom of the connecting hole.

[0011] Preferably, six movable cavities are opened inside the side wall of the socket, and an anti-slip assembly is installed in the movable cavity. A second sliding hole is opened on the side of the movable cavity close to the outer wall of the hexagonal block, and the second sliding hole is opposite to the limiting hole. A first sliding hole is opened on the inner wall of the movable cavity close to the socket, and limiting grooves are opened on both sides of the inner wall of the movable cavity.

[0012] Preferably, the anti-detachment component includes a baffle, which slides in the active cavity, and an extrusion rod is fixedly installed at one end of the baffle near the insertion hole, and the extrusion rod passes through the first sliding hole and extends into the insertion hole, and a limiting rod is fixedly installed at one end of the baffle near the second sliding hole, and a first spring is fixedly installed on the outer surface of the limiting rod, and limiting blocks are fixedly installed on both sides of the baffle, and the limiting blocks slide in the limiting groove, and a downward inclined slope is provided on the upper end of the extrusion rod, and when the vertical rod is inserted into the insertion hole, the extrusion rod is squeezed to drive the limiting rod to be inserted into the limiting hole, thereby preventing the abutment and the implant from detaching and improving the connection stability between the abutment and the implant.

[0013] Preferably, the connecting screw includes a top plate, the top of the top plate is provided with a hexagon socket, the bottom of the top plate is fixedly installed with a vertical rod, the bottom of the vertical rod is fixedly installed with a screw rod, the bottom of the screw rod is fixedly installed with a fixing rod, a plurality of receiving grooves are provided on the outside of the fixing rod, an anti-loosening component is installed in the receiving groove, the top plate is installed in the connecting hole, the vertical rod passes through the jack and the screw rod is threadedly connected to the screw hole, the anti-loosening component cooperates with the tooth groove to prevent the fixing rod from moving up, thereby blocking the rotation of the screw rod, thereby reducing the risk of loosening of the connecting screw and improving the connection stability between the abutment and the implant.

[0014] Preferably, a sliding groove is provided on the inner wall of the storage groove away from the storage groove opening, and the anti-loosening component includes a block and a slide rod, the bottom of the block is rotatably installed in the storage groove through a first rotating shaft, the end of the block close to the sliding groove is provided with a groove, the slide rod is fixedly installed in the slide groove, a slider is slidably installed on the outer surface of the slide rod, a second spring is sleeved on the outer surface of the slide rod, a pull rod is hinged on one side of the slider, and the end of the pull rod away from the slider is rotatably installed in the groove through a second rotating shaft, the tooth groove is adapted to the block, and the bottom wall of the storage groove is inclined downward from the inside to the outside.

[0015] Preferably, the maximum outer diameter of the screw is 3 mm-7 mm, and the overall length of the implant is 6 mm-20 mm.

[0016] Preferably, the implant body is made of titanium or its alloy material, and the base is made of any one of zirconia ceramics, titanium and titanium alloy.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention discloses a dental implant fixture. By means of an anti-slip device, during the installation process of the connecting screw, the extrusion rod is squeezed, the extrusion rod with the baffle slides in the movable cavity, the baffle drives the limiting rod to move in the movable cavity, and the limiting rod is inserted into the limiting hole from the second sliding hole, so that the implant and the base are locked together through the cooperation of the limiting rod and the limiting hole, and the implant and the base are prevented from loosening under the double locking cooperation of the anti-slip component of the connecting screw;

[0019] 2. The present invention discloses a dental implant fixture. In order to prevent the loosening of the connecting screw and the resulting loosening of the base, an anti-loosening component is arranged on the outside of the connecting screw, and a tooth groove cooperating with the anti-loosening component is arranged inside the implant. During the installation of the connecting screw, a clamping block is clamped in the tooth groove to limit the lateral movement of the fixing rod, thereby preventing the connecting screw from loosening and further ensuring the connection stability between the base and the implant. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the decomposition of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the connecting screw of the present invention;

[0023] Figure 4 It is an overall front view of the present invention;

[0024] Figure 5 is a cross-sectional view of an implant of the present invention;

[0025] Figure 6 It is an overall top view of the present invention;

[0026] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of point B in the middle;

[0027] Figure 8 For the present invention Figure 4 A magnified schematic diagram of center A.

[0028] In the figure: 1, implant; 2, base; 3, connecting screw; 4, anti-loosening component; 31, top plate; 32, vertical rod; 33, screw rod; 34, fixing rod; 35, anti-loosening component; 21, base; 22, hexagonal block; 23, connecting hole; 24, plug hole; 221, movable cavity; 222, first sliding hole; 223, second sliding hole; 101, hexagonal hole; 102, screw hole; 103, through hole; 104, tooth groove; 105, limiting hole; 106, threaded portion; 41, baffle; 42, limiting rod; 43, first spring; 44, extrusion rod; 45, ramp; 46, limiting block; 351, block; 352, first rotating shaft; 353, slide rod; 354, second spring; 355, slider; 356, pull rod; 357, second rotating shaft; 3511, groove; 341, storage groove; 342, slide groove; 224, limiting groove. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] like Figure 1-8 As shown, a dental implant fixture comprises an implant 1, a base 2 and a connecting screw 3. The top of the implant 1 is provided with a hexagonal hole 101. The upper part of the implant 1 is a cylindrical structure. The lower part of the implant 1 is conical and has a threaded portion 106 on the outer surface. When installing the implant 1, an incision is first made on the patient's gums, and then a tapping device is used to make a thread on the patient's alveolar bone that matches the threaded portion 106. Then, a hexagonal screwdriver is inserted into the inner hexagonal hole 101 to implant the implant 1 into the patient's gums. In the alveolar bone, the base 2 includes a base 21, and a hexagonal block 22 is fixedly installed at the bottom of the base 21, which cooperates with the hexagonal hole 101 to improve the positioning accuracy. The base 2 and the implant 1 are quickly and conveniently installed. A screw hole 102 is provided at the bottom of the hexagonal hole 101, and a through hole 103 is provided at the bottom of the screw hole 102. The side wall of the through hole 103 is provided with a plurality of tooth grooves 104 distributed up and down. A limiting hole 105 is provided in the middle of each side wall of the hexagonal hole 101, and the connecting screw 3 is threadedly connected to the screw hole 102.

[0031] The connecting screw 3 includes a top plate 31, a hexagonal hole is provided on the top of the top plate 31, a vertical rod 32 is fixedly installed on the bottom of the top plate 31, a screw rod 33 is fixedly installed on the bottom of the vertical rod 32, a fixing rod 34 is fixedly installed on the bottom of the screw 33, a plurality of receiving grooves 341 are provided on the outside of the fixing rod 34, an anti-loosening component 35 is installed in the receiving groove 341, the top plate 31 is installed in the connecting hole 23, the vertical rod 32 passes through the insertion hole 24, the screw rod 33 is threadedly connected to the screw hole 102, and the anti-loosening component 35 cooperates with the tooth groove 104.

[0032] A connecting hole 23 is provided on the top of the base 21 to store adhesive for facilitating the bonding of the crown to the upper part of the base 2; a plug hole 24 is provided at the bottom of the connecting hole 23 to penetrate the bottom of the hexagonal block 22; six movable cavities 221 are provided inside the side wall of the plug hole 24, and an anti-drop assembly 4 is installed in the movable cavity 221; a second sliding hole 223 is provided on the side of the movable cavity 221 close to the outer wall of the hexagonal block 22, and the second sliding hole 223 is opposite to the limiting hole 105; a first sliding hole 222 is provided on the inner wall of the movable cavity 221 close to the plug hole 24, and limiting grooves 224 are provided on both sides of the inner wall of the movable cavity 221.

[0033] The anti-slip assembly 4 includes a baffle 41, which slides in the active cavity 221. An extrusion rod 44 is fixedly installed at one end of the baffle 41 close to the insertion hole 24. The extrusion rod 44 passes through the first sliding hole 222 and extends into the insertion hole 24. A limiting rod 42 is fixedly installed at one end of the baffle 41 close to the second sliding hole 223. A first spring 43 is fixedly installed on the outer surface of the limiting rod 42. Limiting blocks 46 are fixedly installed on both sides of the baffle 41. The limiting blocks 46 slide in the limiting groove 224. A downwardly inclined slope 45 is provided on the upper end of the extrusion rod 44. The setting site of the slope 45 and the connecting screw 3 squeeze the slope 45

[0034] During use, when installing the connecting screw 3, the connecting screw 3 squeezes the extrusion rod 44, and the extrusion rod 44 with the baffle 41 slides in the active cavity 221, and the baffle 41 drives the limiting rod 42 to move in the active cavity 221, and the limiting rod 42 is inserted into the limiting hole 105 from the second sliding hole 223, so that the implant 1 and the base 2 are locked together through the cooperation of the limiting rod 42 and the limiting hole 105, so as to prevent the base 2 and the implant 1 from loosening after long-term use.

[0035] A sliding groove 342 is provided on the inner wall of the receiving groove 341 away from the opening of the receiving groove 341, and the anti-loosening component 35 includes a block 351 and a slide rod 353. The bottom of the block 351 is rotatably installed in the receiving groove 341 through a first rotating shaft 352, and a groove 3511 is provided at one end of the block 351 close to the sliding groove 342. The slide rod 353 is fixedly installed in the sliding groove 342, and a slider 355 is slidably installed on the outer surface of the slide rod 353. A second spring 354 is sleeved on the outer surface of the slide rod 353, and a pull rod 356 is hinged on one side of the slider 355. The end of the pull rod 356 away from the slider 355 is rotatably installed in the groove 3511 through a second rotating shaft 357. The tooth groove 104 is adapted to the block 351, and the bottom wall of the receiving groove 341 is inclined downward from the inside to the outside.

[0036] When in use, the hexagonal hole 101 is driven to rotate by a hexagonal screwdriver, thereby driving the connecting screw 3 to gradually enter the interior of the implant 1. In the process of the screw rod 33 moving downward, the lower tooth block is squeezed by the thread groove and stored in the storage groove 341. When the connecting screw 3 drives the vertical rod 32 to enter the through hole 103, the second spring 354 squeezes the slider 355, and the slider 355 drives the pull rod 356 to move downward, thereby driving the block 351 to expand outward. The outside of the expanded block 351 is clamped in the tooth groove 104. When the connecting screw 3 is loose and has a tendency to move upward, the tooth groove 104 and the block 351 cooperate to prevent the fixing rod 34 from moving upward, thereby preventing the connecting screw 3 from moving upward, thereby preventing the connecting screw 3 from loosening, thereby preventing the loosening of the base 2 and the implant 1 from being caused by the loosening of the connecting screw 3.

[0037] The maximum outer diameter of the screw rod 33 is 3 mm to 7 mm, and the overall length of the implant 1 is 6 mm to 20 mm.

[0038] The implant 1 is made of titanium and titanium alloy, which has good biocompatibility and machining performance. The biological activity of the implant 1 can be effectively improved by treating the surface of the titanium material in different ways.

[0039] The working principle of the present invention is as follows: when in use, firstly, an incision is made on the patient's gums, and then a tapping device is used to make a thread on the patient's alveolar bone that matches the threaded portion 106 of the implant 1, and then a hexagonal screwdriver is inserted into the inner hexagonal hole 101 to implant the implant 1 into the patient's alveolar bone, and then the hexagonal block 22 is inserted into the hexagonal hole, and then the connecting screw 3 is inserted into the connecting hole 23, and the connecting screw 33 is driven to rotate by the hexagonal screwdriver, so that the screw 33 of the connecting screw 3 is threadedly connected with the thread groove. During the installation of the connecting screw 3, the top plate 31 squeezes the base 2 and the implant 1 together, and at the same time squeezes the squeezing rod 44, and the squeezing rod 44 with the baffle 41 slides in the active cavity 221, and the baffle 41 drives the limiting rod 42 to move in the active cavity 221, and the limiting rod 42 is inserted from the second sliding hole 223 into the limiting hole 105, thereby By cooperating with the limiting rod 42 and the limiting hole 105, the implant 1 and the base 2 are locked together. The dual setting of the connecting screw 3 and the anti-slip device can prevent the base 2 and the implant 1 from loosening. In order to prevent the connecting screw 3 from loosening, causing the base 2 and the anti-slip component 4 to loosen and affect the stability of the connection, when the connecting screw 3 drives the vertical rod 32 to enter the through hole 103, the second spring 354 squeezes the slider 355, and the slider 355 drives the pull rod 356 to move downward, thereby driving the block 351 to expand outward. The outside of the expanded block 351 is clamped in the tooth groove 104. When the connecting screw 3 loosens and has a tendency to move upward, the tooth groove 104 and the block 351 cooperate to prevent the fixing rod 34 from moving upward, thereby preventing the connecting screw 3 from moving upward, thereby preventing the connecting screw 3 from loosening, thereby avoiding the loosening of the connecting screw 3 causing the base 2 and the implant 1 to loosen.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dental implant fixture, characterized in that: The implant comprises an implant (1), a base (2) and a connecting screw (3); the implant (1) has a hexagonal hole (101) at the top; the base (2) comprises a base (21); a hexagonal block (22) is fixedly mounted at the bottom of the base (21); the bottom of the hexagonal block (22) is inserted into the hexagonal hole (101); and the connecting screw (3) passes through the base (2) and is threadedly connected to the implant (1).

2. A dental implant fixture according to claim 1, characterized in that: A screw hole (102) is provided at the bottom of the hexagonal hole (101), a through hole (103) is provided at the bottom of the screw hole (102), a plurality of tooth grooves (104) distributed vertically are provided on the side wall of the through hole (103), and a limiting hole (105) is provided in the middle of each side wall of the hexagonal hole (101).

3. The dental implant fixture according to claim 1, characterized in that: The upper part of the implant (1) is in a cylindrical structure, the lower part of the implant (1) is in a conical shape and a threaded portion (106) is provided on the outer surface.

4. The dental implant fixture according to claim 1, characterized in that: A connecting hole (23) is provided at the top of the base body (21), and a plug hole (24) penetrating the bottom of the hexagonal block (22) is provided at the bottom of the connecting hole (23).

5. A dental implant fixture according to claim 4, characterized in that: Six movable cavities (221) are provided inside the side wall of the insertion hole (24), an anti-drop assembly (4) is installed in the movable cavity (221), a second sliding hole (223) is provided on the side of the movable cavity (221) close to the outer wall of the hexagonal block (22), the second sliding hole (223) is opposite to the limiting hole (105), a first sliding hole (222) is provided on the inner wall of the movable cavity (221) close to the insertion hole (24), and limiting grooves (224) are provided on both sides of the inner wall of the movable cavity (221).

6. A dental implant fixture according to claim 5, characterized in that: The anti-slip assembly (4) comprises a baffle (41), the baffle (41) slides in the active cavity (221), an extrusion rod (44) is fixedly installed at one end of the baffle (41) close to the insertion hole (24), the extrusion rod (44) passes through the first sliding hole (222) and extends into the insertion hole (24), a limiting rod (42) is fixedly installed at one end of the baffle (41) close to the second sliding hole (223), a first spring (43) is fixedly installed on the outer surface of the limiting rod (42), limiting blocks (46) are fixedly installed on both sides of the baffle (41), the limiting blocks (46) slide in the limiting groove (224), and a downwardly inclined slope (45) is provided at the upper end of the extrusion rod (44).

7. The dental implant fixture according to claim 1, characterized in that: The connecting screw (3) comprises a top plate (31), a vertical rod (32) is fixedly mounted on the bottom of the top plate (31), a screw rod (33) is fixedly mounted on the bottom of the vertical rod (32), a fixing rod (34) is fixedly mounted on the bottom of the screw rod (33), a plurality of receiving grooves (341) are provided on the outside of the fixing rod (34), an anti-loosening component (35) is installed in the receiving groove (341), the top plate (31) is installed in the connecting hole (23), the vertical rod (32) passes through the insertion hole (24), the screw rod (33) is threadedly connected to the screw hole (102), and the anti-loosening component (35) is matched with the tooth groove (104).

8. The dental implant fixture according to claim 7, characterized in that: A sliding groove (342) is provided on the inner wall of the receiving groove (341) away from the opening of the receiving groove (341); the anti-loosening component (35) comprises a clamping block (351) and a sliding rod (353); the bottom of the clamping block (351) is rotatably installed in the receiving groove (341) via a first rotating shaft (352); a groove (3511) is provided at one end of the clamping block (351) close to the sliding groove (342); and the sliding rod (353) is fixedly installed in the sliding groove (342). A slider (355) is slidably installed on the outer surface of the slide rod (353), and a second spring (354) is sleeved on the outer surface of the slide rod (353). A pull rod (356) is hinged on one side of the slider (355), and the end of the pull rod (356) away from the slider (355) is rotatably installed in the groove (3511) through a second rotating shaft (357). The tooth groove (104) is adapted to the block (351), and the bottom wall of the storage groove (341) is inclined downward from the inside to the outside.

9. The dental implant fixture according to claim 7, characterized in that: The maximum outer diameter of the screw rod (33) is 3 mm to 7 mm, and the overall length of the implant (1) is 6 mm to 20 mm.

10. The dental implant fixture according to claim 1, characterized in that: The implant body (1) is made of titanium or its alloy material, and the base (2) is made of any one of zirconia ceramics, titanium and titanium alloy.

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