Novel screw driver for dental implant

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a novel screw driver for dental implantation, which comprises a screwing head handle, a screwing rod and a tool head, a T-shaped locking rod is arranged on the screwing head handle, the locking rod penetrates through the screwing head handle and is in interference fit with the screwing rod, and the tool head is arranged on the screwing head handle. A plurality of friction convex teeth are installed, the width between every two adjacent friction convex teeth is larger than that of the friction convex teeth, the friction convex teeth are in a trapezoid shape, and the sum of the diameters of an anti-skid layer and the friction convex teeth is smaller than the diameter of a limiting disc and the diameter of a fixing disc. The locking performance between the screw driver and the torque wrench for dental implant is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and more specifically, it relates to a new type of dental implant screw driver. Background Art

[0002] In dental surgeries, especially in high-precision operations such as dental implants and crown restorations, there are extremely high requirements for the precision of screw fixation and loosening. As a tool that can precisely control torque, the dental implant torque wrench plays a crucial role in dental surgeries. However, traditional dental implant torque wrenches have deficiencies in terms of precision, convenience, and intelligence, and have gradually been unable to meet the needs of modern dental surgeries.

[0003] For example, the screw driver dedicated to dental implants with the application publication number CN108904081A includes a screwing handle. The screwing handle is cylindrical, and anti-slip threads are provided on the outer surface of the cylinder; a screwing rod, one end of the screwing rod is connected to the screwing handle; a tool head, the tool head is connected to the other end of the screwing rod, and a semi-circular protrusion is provided on the top of the tool head.

[0004] In the above, when the screw driver is fixed to the dental implant torque wrench, the outer wall of the screw driver needs to be locked with the inner wall of the opening on the dental implant torque wrench. Only anti-slip threads are installed on the surface of the screwing handle, resulting in a low locking property between the screw driver and the dental implant torque wrench, and the screw driver may be stuck out from the dental implant torque wrench. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a new type of dental implant screw driver that improves the locking property between the screw driver and the dental implant torque wrench.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A new type of dental implant screw driver includes a screwing handle, a screwing rod, and a tool head.

[0008] The screwing rod is respectively disposed between the screwing handle and the tool head and is connected to both the screwing handle and the tool head. A locking rod is provided on the screwing handle and is movably connected to the screwing handle, so that the locking rod penetrates through the screwing handle and has an interference fit with the screwing rod. The locking rod includes a cross bar and a vertical bar fixedly connected to the cross bar, and the cross bar and the vertical bar form a "T" shape. An anti-slip layer is provided on the screwing rod, the anti-slip layer is fixedly connected to the outer wall of the screwing rod, and a plurality of friction teeth are provided on the anti-slip layer and surround the anti-slip layer. One side of the friction teeth is fixedly connected to the anti-slip layer, the friction teeth are trapezoidal, and the width between adjacent friction teeth is greater than the width of the friction teeth.

[0009] The present utility model is further configured such that: a connection groove and an embedded groove are formed on the screwing handle, the connection groove and the embedded groove are communicated with each other, one side of the vertical rod sequentially penetrates through the connection groove and the embedded groove and is connected with the screwing rod, and the cross rod is placed in the connection groove.

[0010] The present utility model is further configured such that: a plug hole communicated with the embedded groove is formed on the screwing rod so that the vertical plate can extend into the plug hole to be connected with the plug hole.

[0011] The present utility model is further configured such that: a fixing disk and a limiting disk are provided on the screwing rod, both the fixing disk and the limiting disk surround the outer wall of the screwing rod, the fixing disk is fixedly connected to the bottom surface of the screwing rod, and the limiting disk is placed between the fixing disk and the anti-slip layer.

[0012] The present utility model is further configured such that: the total diameter of the anti-slip layer and the friction convex teeth is less than the diameter of the limiting disk which is less than the diameter of the fixing disk.

[0013] The present utility model is further configured such that: a storage groove for placing dental floss is provided between the screwing handle and the screwing rod.

[0014] The present utility model is further configured such that: two horizontally distributed blind holes are formed on the outer wall of the screwing handle, and the two blind holes are communicated with each other.

[0015] The present utility model is further configured such that: a plurality of protrusions are provided on the tool head.

[0016] By adopting the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] By installing a plurality of friction convex teeth and the width between adjacent friction convex teeth is greater than the width of the friction convex teeth, since the friction convex teeth are trapezoidal in shape, and the total diameter of the anti-slip layer and the friction convex teeth is less than the diameter of the limiting disk which is less than the diameter of the fixing disk, it is prevented that the screwdriver bit is stuck out from the dental implant torque wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of an embodiment of the present utility model;

[0019] Figure 2 is a cross-sectional view of an embodiment of the present utility model.

[0020] Screwing handle 1, screwing rod 2, tool head 3, locking rod 4, cross rod 5, vertical rod 6, anti-slip layer 7, friction convex teeth 8, connection groove 9, embedded groove 10, plug hole 11, blind hole 12, protrusion 13, fixing disk 14, limiting disk 15. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] As Figures 1 to 2 shown, the new dental implant screw driver includes a screwing handle 1, a screwing rod 2 and a tool head 3. The screwing rod 2 is respectively placed between the screwing handle 1 and the tool head 3 and is connected to both the screwing handle 1 and the tool head 3. A number of protrusions 13 are installed on the tool head 3. The screw driver is fixed to the dental implant torque wrench, so that protrusions 13 of different sizes or shapes can be replaced according to the situation.

[0024] A locking rod 4 that is movably connected to the screwing handle 1 is provided on the screwing handle 1, so that the locking rod 4 penetrates through the screwing handle 1 and has an interference fit with the screwing rod 2. A storage groove for dental floss is provided between the screwing handle 1 and the screwing rod 2.

[0025] Two horizontally distributed blind holes 12 are formed on the outer wall of the screwing handle 1, and the two blind holes 12 are connected to each other. One end of the dental floss is placed on the locking rod 4 and wound along the locking rod 4, so that the other end of the dental floss passes through the two blind holes 12. When the dental implant accidentally falls during the implantation process, the dental implant can be taken out through the dental floss.

[0026] The locking rod 4 is composed of a cross bar 5 and a vertical bar 6 fixedly connected to the cross bar 5. The cross bar 5 and the vertical bar 6 are in a "T" shape. An anti-slip layer 7 is installed on the screwing rod 2, and the anti-slip layer 7 is fixedly connected to the outer wall of the screwing rod 2.

[0027] A number of friction convex teeth 8 surrounding the anti-slip layer 7 are installed on the anti-slip layer 7. One side of the friction convex teeth 8 is fixedly connected to the anti-slip layer 7. The friction convex teeth 8 are trapezoidal in shape, and the width between adjacent friction convex teeth 8 is greater than the width of the friction convex teeth 8, preventing the screw driver from being stuck out from the dental implant torque wrench.

[0028] The screwing handle 1 is provided with a connecting groove 9 and an embedded groove 10, the connecting groove 9 and the embedded groove 10 are communicated with each other, one side of the vertical rod 6 sequentially penetrates through the connecting groove 9 and the embedded groove 10 and is connected with the screwing rod 2, the cross rod 5 is placed in the connecting groove 9, and the screwing rod 2 is provided with a plug hole 11 communicated with the embedded groove 10 so that the vertical plate can extend into the plug hole 11 and be connected with the plug hole 11.

[0029] A fixing disk 14 and a limiting disk 15 are installed on the screwing rod 2, both the fixing disk 14 and the limiting disk 15 surround the outer wall of the screwing rod 2, the fixing disk 14 is fixedly connected to the bottom surface of the screwing rod 2, the limiting disk 15 is placed between the fixing disk 14 and the anti-slip layer 7, and the sum of the diameters of the anti-slip layer 7 and the friction convex teeth 8 is less than the diameter of the limiting disk 15 which is less than the diameter of the fixing disk 14.

[0030] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel dental implant screwdriver, comprising a screwing head handle (1), a screwing rod (2) and a tool head (3), The screwing rods (2) are respectively placed between the screwing head handle (1) and the tool head (3) and are connected to the screwing head handle (1) and the tool head (3). It is characterized in that The screwing head handle (1) is provided with a locking rod (4) movably connected to the screwing head handle (1), so that the locking rod (4) passes through the screwing head handle (1) and is interference-fitted with the screwing rod (2). The locking rod (4) is composed of a horizontal rod (5) and a vertical rod (6) fixedly connected to the horizontal rod (5), and a "T" is formed between the horizontal rod (5) and the vertical rod (6). The screw rod (2) is provided with an anti-slip layer (7), and the anti-slip layer (7) is fixedly connected to the outer wall of the screw rod (2). The anti-slip layer (7) is provided with a plurality of friction convex teeth (8) surrounding the anti-slip layer (7), one side of the friction convex teeth (8) is fixedly connected to the anti-slip layer (7), the friction convex teeth (8) are in a trapezoidal shape, and the width between adjacent friction convex teeth (8) is greater than the width of the friction convex teeth (8).

2. A new type of dental implant screwdriver according to claim 1, characterized in that: The screwing head handle (1) is provided with a connecting groove (9) and a pre-buried groove (10), and the connecting groove (9) and the pre-buried groove (10) are connected. One side of the vertical rod (6) passes through the connecting groove (9) and the embedded groove (10) in sequence and is connected to the screw rod (2), and the horizontal rod (5) is placed in the connecting groove (9).

3. A new type of dental implant screwdriver according to claim 2, characterized in that: The screw rod (2) is provided with an insert hole (11) which is in communication with the embedded groove (10), so that the vertical plate can extend into the insert hole (11) and be connected with the insert hole (11).

4. The novel dental implant screwdriver according to claim 1, characterized in that: The screw rod (2) is provided with a fixing plate (14) and a limiting plate (15), both of which surround the outer wall of the screw rod (2), the fixing plate (14) and the limiting plate (15) are fixedly connected to the bottom surface of the screw rod (2), and the limiting plate (15) is placed between the fixing plate (14) and the anti-slip layer (7).

5. The novel dental implant screwdriver according to claim 4, characterized in that: The sum of the diameters of the anti-slip layer (7) and the friction convex teeth (8) is smaller than the diameter of the limiting disk (15) and smaller than the diameter of the fixing disk (14).

6. The novel dental implant screwdriver according to claim 5, characterized in that: A storage groove for placing dental floss is provided between the screwing head handle (1) and the screwing rod (2).

7. The novel dental implant screwdriver according to claim 1, characterized in that: Two transversely distributed blind holes (12) are provided on the outer wall of the screwing head handle (1), and the two blind holes (12) are connected.

8. The novel dental implant screwdriver according to claim 1, characterized in that: The tool head (3) is provided with a plurality of protrusions (13).

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