Conical implant trimming needle

Abstract

The utility model discloses a conical implant dressing needle, and relates to the technical field of dental instruments. Comprising a needle handle, a connecting rod and a needle head, the lathe needle head comprises a cone and a cylinder which are sequentially connected, the side face of the cone comprises smooth faces and a frosted face, the smooth faces are located at the two ends of the side face of the cone, and the frosted face is located between the smooth faces at the two ends. The bottom surface of the cone is connected with the top surface of a cylinder with the same diameter, and the side surface of the cylinder is a smooth surface; a middle shaft, far away from the cone, of the cylinder communicates with the connecting rod; one end of the connecting rod away from the needle head is connected with the needle handle. The conical turning needle head can enable a doctor to avoid the shielding of a large-size dental crown at a neutral position and trim the implant thread from the side surface, so that the operation accuracy of the doctor is improved, and the operation time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of dental instruments, in particular to a conical implant finishing needle. Background Art

[0002] Peri-implantitis refers to the reversible inflammation of the soft tissue around oral implants, which is a major challenge to the long-term and stable function of implants. Currently, most implants are fixed in the alveolar bone with a threaded structure. Once the threaded structure is exposed as peri-implantitis progresses, the exposed thread position is very likely to retain plaque, causing the inflammation to worsen. During the surgical procedure for peri-implantitis, effectively removing the residual tissue on the implant surface and trimming the exposed threads into a smooth and flat surface are one of the key points of the operation.

[0003] In clinical practice, when removing the exposed threads of an implant, it is usually necessary to retain the original crown part. Since the diameter of the crown part is larger than the threaded part, it is difficult to use the existing needle to trim the thread on the implant surface, which is blocked. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model aims to provide a tapered implant trimming needle, which can trim the implant thread from the side without being blocked by the crown.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] The utility model provides a conical implant finishing needle, comprising a needle handle, a connecting rod and a needle head;

[0007] The needle head includes a cone and a cylinder connected in sequence. The side surface of the cone includes a smooth surface and a frosted surface. The smooth surface is located at the two ends of the side surface of the cone, and the frosted surface is located between the smooth surfaces at the two ends. The bottom surface of the cone is connected to the top surface of a cylinder with the same diameter, and the side surface of the cylinder is a smooth surface. The center axis of the cylinder away from the cone is connected to the connecting rod; the end of the connecting rod away from the needle head is connected to the needle handle.

[0008] Optionally, the top of the cone is shaped as a smooth sphere tangent to the side of the cone.

[0009] Optionally, the smooth side of the needle tip is a highly polished surface.

[0010] Optionally, the frosted surface of the turning needle head is inlaid with diamond abrasives.

[0011] Optionally, the frosted surface of the needle tip is tungsten steel frosted surface.

[0012] Optionally, the diameter of the connecting rod is smaller than the diameter of the cylinder.

[0013] Optionally, each position of the frosted surface of the needle head is not higher than the smooth surfaces at both ends.

[0014] Optionally, the taper of the conical part of the needle head is 0.1-1, and the bottom diameter of the cone is 0.5-2.5 mm.

[0015] Optionally, the width of the smooth surface of the top of the needle head is 0.2-0.5 mm, the width of the frosted surface is 0.5-4.0 mm, and the width of the cylinder is 0.2-0.5 mm.

[0016] Optionally, the total length of the needle is 25 to 40 mm.

[0017] The beneficial effects of the utility model are as follows:

[0018] The conical bur head provided by the present invention enables the doctor to avoid the obstruction of the large-sized crown in a neutral position and trim the implant thread from the side, thereby improving the accuracy of the doctor's operation and saving operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for illustration only.

[0021] Figure 1 It is a schematic diagram of the structure of a needle in a specific implementation manner.

[0022] Figure 2 It is a schematic diagram of the operation of the needle in a specific implementation manner.

[0023] Among them, 1. needle head; 2. connecting rod; 3. needle handle; 4. smooth surface; 5. frosted surface; 6. cylinder; 7. surrounding tissue; 8. exposed thread; 9. crown. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment 1:

[0026] A conical implant finishing needle, comprising a needle handle 3, a connecting rod 2 and a needle head 1;

[0027] The needle head 1 includes a cone and a cylinder 6 connected in sequence. The side surface of the cone includes a smooth surface 4 and a frosted surface 5. The smooth surface 4 is located at the two ends of the side surface of the cone, and the frosted surface 5 is located between the smooth surfaces 4 at the two ends; the bottom surface of the cone is connected to the top surface of a cylinder 6 of the same diameter, and the side surface of the cylinder 6 is a smooth surface 4; the central axis of the cylinder 6 away from the end of the cone is connected to the connecting rod 2; the end of the connecting rod 2 away from the needle head 1 is connected to the needle handle 3.

[0028] Through the above arrangement, the frosted surface 5 can be used to efficiently remove the protruding threaded portion. Since the frosted surface 5 is located between the two smooth surfaces 4, the frosted surface 5 can only cut the threaded portion between the two smooth surfaces 4. When the two smooth surfaces 4 are in contact with the implant or the crown 9 at the same time, the frosted surface 5 loses its cutting function to prevent excessive cutting of the implant. On the other hand, the needle head 1 is configured to be conical, and the diameter of the top is very small. It can avoid the obstruction of the crown 9 as needed and cut the threads at deeper positions. The cone shape makes it convenient for the doctor to use the smooth surface 4 with a conical fixed point as a support to perform multi-angle operations.

[0029] The top of the cone is shaped like a smooth sphere tangent to the side of the cone. It has no cutting function, can be supported on the surface of the implant, and avoids damaging the nearby gums during movement.

[0030] The smooth surface 4 of the needle head 1 is a highly polished surface, which minimizes the friction damage caused by the needle head 1 to the implant surface during the rotation process.

[0031] The frosted surface 5 of the turning needle head 1 is inlaid with diamond abrasives, which can improve the cutting efficiency.

[0032] Alternatively, the frosted surface 5 of the needle head 1 is a tungsten steel frosted surface, which is easy to manufacture.

[0033] The needle head 1, the connecting rod 2 and the needle handle 3 are made of the same material, which can improve the connection strength at each position.

[0034] Each position of the frosted surface 5 of the needle head 1 is not higher than the smooth surfaces 4 at both ends to avoid excessive cutting caused by protruding abrasives.

[0035] The taper of the conical part of the needle head 1 is 0.1-1. The taper is defined as the ratio of the bottom diameter of the cone to the height of the cone. The needle head with this taper can be used for trimming the implant under the crown 9 in clinical practice.

[0036] The width of the smooth surface 4 at the top of the needle head 1 is 0.5 mm, the width of the frosted surface 5 is 4.0 mm, and the width of the cylinder 6 is 0.5 mm.

[0037] The total length of the needle is 30mm.

[0038] The method for using the needle of this embodiment includes:

[0039] Insert the bur handle 3 into the dental handpiece and adjust the speed appropriately. The doctor is in a neutral position.

[0040] like Figure 2 As shown in (a), the surrounding tissue 7, including the bone wall, is relatively high. The needle head 1 is inserted between the crown 9 and the surrounding tissue 7 to cut the exposed thread 8. The spherical smooth surface of the needle head 1 and the smooth surface of the columnar part can ensure that only the thread is cut, thereby preventing excessive cutting of the implant.

[0041] Or, if Figure 2 As shown in (b), the surrounding tissues 7, including the bone wall, are flat, and the tip of the needle head 1 has a smooth spherical surface, which can avoid touching and damaging the surrounding tissues 7 during operation.

[0042] The cone shape is adapted to the operating space below the crown 9, so that the exposed threads 8 can be cut conveniently, and the smooth surface 4 at the top of the cone can avoid damaging the implant and surrounding tissues 7 that do not need to be cut.

[0043] The smooth side surface of the cylinder 6 can prevent the rear end of the needle head 1 from cutting the protruding crown 9 .

[0044] After the cutting is completed, the conical side of the needle head 1 abuts against the side of the implant. Due to the limiting effect of the smooth surface 4, the frosted surface 5 loses its cutting effect, so the implant will not be over-cut, resulting in a reduction in the diameter of the implant.

[0045] During use, cooperate with the water spray cooling operation and the saliva suction tube to control the good surgical field of view.

[0046] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tapered implant finishing needle, characterized in that: It includes a needle handle, a connecting rod and a needle head; The needle head includes a cone and a cylinder connected in sequence. The side surface of the cone includes a smooth surface and a frosted surface. The smooth surface is located at the two ends of the side surface of the cone, and the frosted surface is located between the smooth surfaces at the two ends. The bottom surface of the cone is connected to the top surface of a cylinder with the same diameter, and the side surface of the cylinder is a smooth surface. The center axis of the cylinder away from the cone is connected to the connecting rod; the end of the connecting rod away from the needle head is connected to the needle handle.

2. The tapered implant finishing needle according to claim 1, characterized in that: The top of the cone is shaped as a smooth sphere that is tangent to the sides of the cone.

3. The tapered implant finishing needle according to claim 1, characterized in that: The smooth side of the needle tip is a highly polished surface.

4. The tapered implant finishing needle according to claim 1, characterized in that: The frosted surface of the turning needle head is inlaid with diamond abrasives.

5. The tapered implant finishing needle according to claim 1, characterized in that: The frosted surface of the needle tip is tungsten steel frosted surface.

6. The tapered implant finishing needle according to claim 1, characterized in that: The diameter of the connecting rod is smaller than the diameter of the cylinder.

7. The tapered implant finishing needle according to claim 1, characterized in that: The frosted surface of the needle head should not be higher than the smooth surfaces at both ends at any position.

8. The tapered implant finishing needle according to claim 1, characterized in that: The taper of the conical part of the needle head is 0.1-1, and the bottom diameter of the cone is 0.5-2.5mm.

9. The tapered implant finishing needle according to claim 1, characterized in that: The width of the smooth surface of the top of the needle head is 0.2-0.5 mm, the width of the frosted surface is 0.5-4.0 mm, and the width of the cylinder is 0.2-0.5 mm.

10. The tapered implant finishing needle according to claim 1, characterized in that: The total length of the needle is 25 to 40 mm.

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