Small-angle turbine handpiece

Abstract

The utility model relates to the technical field of medical instruments, and provides a small-angle turbine handpiece. Comprising a handle body, and the front end of the handle body is connected with a machine head assembly; wherein the handle main body comprises a connecting section, a transition section and a holding section which extend in sequence; a water guide channel is formed in the connecting section, the water guide channel extends to the water outlet end of the machine head assembly, the water guide channel is formed in the machining process of the connecting section, and the water guide channel is in smooth transition towards the corner of the machine head assembly. The mobile phone has the beneficial effects that the included angle between the rotation axis of the mobile phone needle and the axis of the handle main body is 5-15 degrees, so that the mobile phone handle can be effectively prevented from colliding with adjacent teeth adjacent to the extracted teeth in the tooth extraction process; according to the mobile phone, the water guide channel is naturally formed in the machining process of the handle, the water guide channel is in smooth transition towards the corner of the machine head assembly, water flow stably flows when passing through the corner, and stable water flow can be provided for the water outlet end of the machine head assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a small-angle turbine handpiece. Background Art

[0002] For the existing small-angle turbine handpiece for tooth treatment, the included angle between the axis of the drill bit in the handpiece head and the axis of the handle is generally above 20°, which causes the handle of the handpiece to collide with the adjacent tooth next to the tooth to be extracted during the tooth extraction process, creating an obstacle to tooth extraction. Once the included angle between the axis of the drill bit in the handpiece head and the axis of the handle is further reduced, the bending angle of the water supply hose entering the handpiece head is too large, resulting in restricted water flow in the hose.

[0003] In view of this, the present utility model is proposed. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a small-angle turbine handpiece to solve the technical problems existing in the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the present utility model is: a small-angle turbine handpiece, comprising: a handle main body, the front end of the handle main body is connected to a handpiece head assembly; wherein, the handle main body is a connecting section, a transition section and a holding section extending in sequence;

[0006] The included angle between the rotation axis of the drill bit (21) in the handpiece head assembly and the axis of the handle main body (1) is 8° - 15°;

[0007] A water guiding channel is formed in the connecting section, the water guiding channel extends to the water outlet end on the handpiece head assembly, the water guiding channel is formed during the processing of the connecting section, and the water guiding channel is smoothly transitioned at the corner towards the handpiece head assembly.

[0008] In an optional embodiment, a cavity is formed in the handle main body, and the cavity extends from the holding section to the transition section.

[0009] In an optional embodiment, the sizes of the connecting section, the transition section and the holding section increase in sequence.

[0010] In an optional embodiment, an air inlet end, an air exhaust end and a water inlet end are arranged at the tail of the handle main body; the air inlet end and the air exhaust end are used for providing air inlet and air exhaust for the turbine in the handpiece head assembly;

[0011] The water inlet end is used for providing water source for the handpiece head assembly.

[0012] In an optional embodiment, one end of the water inlet end is connected to one end of a water guiding hose, the water guiding hose passes through the holding section and the cavity, and the other end of the water guiding hose is connected to the water inlet of the end of the water guiding channel far from the handpiece head assembly.

[0013] In an alternative embodiment, the turbine is used to drive the bur in the nose assembly.

[0014] In an alternative embodiment, a rear water guiding channel is formed in the holding section, and the rear water guiding channel extends to the cavity. The rear water guiding channel is formed during the processing of the holding section.

[0015] In an alternative embodiment, the water inlet of the rear water guiding channel is connected to the water inlet end; the water outlet of the rear water guiding channel is connected to the water inlet of the water guiding channel through a water guiding hose.

[0016] In an alternative embodiment, an arc-shaped groove for increasing the friction force is formed on the surface of the holding section.

[0017] The beneficial effects of the present utility model are as follows: The included angle between the rotation axis of the handpiece bur and the axis of the handle body is 8° - 15°, which can effectively avoid the collision between the handpiece handle and the adjacent tooth adjacent to the tooth to be extracted during the tooth extraction process; it should be noted that the water guiding channel is naturally formed during the processing of the handle of the handpiece, and the water guiding channel has a smooth transition at the corner towards the nose assembly, and the water flow is stable when passing through the corner, and can provide a stable water flow for the water outlet end of the nose assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the overall structure of a small-angle turbine handpiece provided by an embodiment of the present utility model Figure 1 .

[0020] Figure 2 Schematic diagram of the overall structure of a small-angle turbine handpiece provided by an embodiment of the present utility model Figure 2 .

[0021] Figure 3 is Figure 2 Cross-sectional view taken along line A - A in

[0022] Figure 4 Schematic diagram of the structure of the nose assembly provided by an embodiment of the present utility model.

[0023] Figure 5 Schematic diagram of the structure of the tail of the handle provided by an embodiment of the present utility model.

[0024] Figure 6Schematic diagram of tooth extraction by mobile phone in the prior art.

[0025] Among them, the reference signs in the figure are as follows:

[0026] 1 - handle body, 11 - holding section, 12 - connecting section, 13 - tail, 14 - cavity, 15 - water guiding channel, 16 - transition section;

[0027] 131 - air inlet end, 132 - exhaust end, 133 - water inlet end;

[0028] 151 - corner, 152 - water outlet end;

[0029] 2 - nose piece assembly, 21 - bur, 22 - turbine. Detailed implementation mode

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly or indirectly located on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component. The orientations or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positions shown in the drawings, and are only for convenience of description and cannot be construed as a limitation to the technical solution of the present application. The terms "first" and "second" are only used for convenience of description and cannot be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality" is two or more, and the meaning of "several" is any number including one, unless otherwise clearly and specifically defined.

[0032] Embodiment 1

[0033] Please refer to the attached Figures 1-5 , the purpose of this embodiment is to provide a small - angle turbine handpiece, including: a handle body 1, the front end of the handle body 1 is connected to a nose piece assembly 2, and the turbine 22 in the nose piece assembly 2 is used to drive the bur 21 in the nose piece assembly 2. It should be noted that the included angle between the rotation axis of the bur 21 and the axis of the handle body 1 is 8° - 15°, which can effectively avoid the Figure 6 collision between the handpiece handle and the adjacent tooth adjacent to the tooth to be extracted during tooth extraction as shown in the

[0034] Specifically, the handle body 1 includes a sequentially extending connecting section 12, a transition section 16, and a gripping section 11. The dimensions of the connecting section 12, the transition section 16, and the gripping section 11 increase in sequence. The connecting section 12 and the transition section 16 with gradually decreasing dimensions can effectively reduce the materials used in the manufacturing process of the mobile phone and lower the manufacturing cost of the mobile phone. A cavity 14 is formed inside the handle body 1. The cavity 14 extends from the gripping section 11 to the transition section 16, further reducing the materials used in the manufacturing process of the mobile phone and lowering the manufacturing cost of the mobile phone. The cavity 14 can also provide an accommodation space for the following water guide hose, and at the same time, it can also provide an accommodation space for the air guide hose connecting the air inlet end 131 and the exhaust end 132, and reduces the overall mass of the mobile phone.

[0035] In this embodiment, a water guide channel 15 is formed inside the connecting section 12. The water guide channel 15 extends to the water outlet end 152 on the nose piece assembly 2. The water guide channel 15 is formed during the processing of the connecting section 12. The corner 151 of the water guide channel 15 facing the nose piece assembly 2 has a smooth transition. The water guide channel 15 is naturally formed during the processing of the handle of this mobile phone. The corner 151 of the water guide channel 15 facing the nose piece assembly 2 has a smooth transition and does not have a transition bend like a water guide hose. The water flow is stable when passing through the corner 151, which can not only ensure a stable flow rate of the water flow when passing through the corner 151 but also ensure a sufficient flow velocity, and can provide a stable water flow for the water outlet end of the nose piece assembly. It is worth mentioning that the water guide channel 15 is formed during the processing of the connecting section 12, reducing the length of the water guide hose inside the handle and saving the manufacturing cost of the mobile phone again.

[0036] It should be noted that an air inlet end 131, an exhaust end 132, and a water inlet end 133 are provided at the tail of the handle body 1; the air inlet end 131 and the exhaust end 132 are used to provide air intake and exhaust for the turbine 22 in the nose piece assembly 2; the water inlet end 133 is used to provide a water source for the nose piece assembly 2. In this embodiment, one end of the water guide hose is connected to the water inlet end 133. The water guide hose passes through the gripping section 11 and the cavity 14, and the other end of the water guide hose is connected to the water inlet of the end of the water guide channel 15 far from the nose piece assembly 2. In addition, an arc-shaped groove for increasing the friction force is formed on the surface of the gripping section 11, which is convenient for the doctor to hold and use the mobile phone.

[0037] Embodiment 2

[0038] Please refer to the appendix Figures 1-5 , the purpose of this embodiment is to provide a small-angle turbine mobile phone, including: a handle body 1, the front end of the handle body 1 is connected to a nose piece assembly 2, and the turbine 22 in the nose piece assembly 2 is used to drive the bur 21 in the nose piece assembly 2. It should be noted that the included angle between the rotation axis of the bur 21 and the axis of the handle body 1 is 15°, which can effectively avoid the collision between the handle of the mobile phone and the adjacent tooth adjacent to the tooth to be extracted during tooth extraction as shown in the appendix Figure 6 during the tooth extraction process.

[0039] Specifically, the handle body 1 includes a sequentially extending connecting section 12, a transition section 16, and a gripping section 11. The sizes of the connecting section 12, the transition section 16, and the gripping section 11 increase in sequence. The connecting section 12 and the transition section 16 with gradually decreasing sizes can effectively reduce the materials used in the manufacturing process of the mobile phone and lower the manufacturing cost of the mobile phone. A cavity 14 is formed inside the handle body 1. The cavity 14 extends from the gripping section 11 to the transition section 16, further reducing the materials used in the manufacturing process of the mobile phone and lowering the manufacturing cost of the mobile phone. The cavity 14 can also provide a accommodating space for the following water guide hose, and at the same time, can also provide a accommodating space for the air guide hose connecting the air inlet end 131 and the air outlet end 132, and reduces the overall mass of the mobile phone.

[0040] In this embodiment, a water guide channel 15 is formed inside the connecting section 12. The water guide channel 15 extends to the water outlet end 152 on the nose component 2. The water guide channel 15 is formed during the processing of the connecting section 12. The corner 151 of the water guide channel 15 facing the nose component 2 has a smooth transition. The water guide channel 15 is naturally formed during the processing of the handle of the mobile phone. The corner 151 of the water guide channel 15 facing the nose component 2 has a smooth transition. The water flow is stable when passing through the corner 151, which can not only ensure the stable flow rate of the water flow when passing through the corner 151, but also ensure a sufficient flow velocity, and can provide a stable water flow for the water outlet end of the nose component. It is worth mentioning that the water guide channel 15 is formed during the processing of the connecting section 12, reducing the length of the water guide hose inside the handle and saving the manufacturing cost of the mobile phone again.

[0041] It should be noted that an air inlet end 131, an air outlet end 132, and a water inlet end 133 are provided at the tail of the handle body 1; the air inlet end 131 and the air outlet end 132 are used to provide air intake and exhaust for the turbine 22 in the nose component 2; the water inlet end 133 is used to provide a water source for the nose component 2.

[0042] In this embodiment, a rear water guide channel is formed inside the gripping section 11. The rear water guide channel extends to the cavity 14. The rear water guide channel is formed during the processing of the gripping section 11. The water inlet of the rear water guide channel is connected to the water inlet end 133; the water outlet of the rear water guide channel is connected to the water inlet of the water guide channel 15 through a water guide hose. Using the processed rear water guide channel to replace part of the water guide hose again further reduces the length of the water guide hose inside the handle and lowers the manufacturing cost of the mobile phone. In addition, an arc-shaped groove for increasing the friction force is formed on the surface of the gripping section 11, which is convenient for the doctor to hold and use the mobile phone.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A small-angle turbine handpiece, comprising: The handle body (1), the front end of the handle body (1) is connected to the machine head assembly (2); wherein, the handle body (1) is a connecting section (12), a transition section (16) and a gripping section (11) that extend in sequence; It is characterized in that the included angle between the rotation axis of the bur (21) in the machine head assembly and the axis of the handle body (1) is 8° - 15°; A water guiding channel (15) is formed in the connecting section (12), the water guiding channel (15) extends to the water outlet end (152) on the machine head assembly (2), the water guiding channel (15) is formed during the processing of the connecting section (12), and the water guiding channel (15) is smoothly transitioned towards the corner (151) of the machine head assembly (2).

2. The small-angle turbine handpiece according to claim 1, wherein A cavity (14) is formed in the handle body (1), and the cavity (14) extends from the gripping section (11) to the transition section (16).

3. The small-angle turbine handpiece according to claim 1, wherein, The sizes of the connecting section (12), the transition section (16) and the gripping section (11) increase in sequence.

4. The small-angle turbine handpiece according to claim 2, wherein The tail of the handle body (1) is provided with an air inlet end (131), an air exhaust end (132) and a water inlet end (133); the air inlet end (131) and the air exhaust end (132) are used to provide air intake and air exhaust for the turbine (22) in the machine head assembly (2); The water inlet end (133) is used to provide a water source for the machine head assembly (2).

5. The small-angle turbine handpiece according to claim 4, characterized in that, The water inlet end (133) is connected to one end of a water guiding hose, the water guiding hose passes through the gripping section (11) and the cavity (14), and the other end of the water guiding hose is connected to the water inlet of the water guiding channel (15) away from the machine head assembly (2).

6. The small-angle turbine handpiece according to claim 1, wherein The turbine (22) is used to drive the bur (21) in the machine head assembly (2).

7. The small-angle turbine handpiece according to claim 4, wherein, A rear water guiding channel is formed in the gripping section (11), the rear water guiding channel extends to the cavity (14), and the rear water guiding channel is formed during the processing of the gripping section (11).

8. The small-angle turbine handpiece according to claim 7, wherein, The water inlet of the rear water guiding channel is connected to the water inlet end (133); the water outlet of the rear water guiding channel is connected to the water inlet of the water guiding channel (15) through a water guiding hose.

9. The small-angle turbine handpiece according to claim 7, wherein, An arc-shaped groove for increasing the friction force is formed on the surface of the gripping section (11).

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