Periodontal curette with replaceable working head and detachable handle

Abstract

The utility model discloses a periodontal curettage device of replaceable work head and detachable handle, including handle main part and a plurality of work head, the end of each handle main part can detachably install a work head, and the handle main part includes detachably connected first half handle and second half handle, and the connecting end of each work head is provided with the head connection screw rod that protrudes outward along the axis direction of work head, and the head connection screw rod is matched with first threaded hole and second threaded hole. The periodontal curettage device of replaceable work head and detachable handle provided by the utility model, the handle main part can be repeatedly used, the work head is replaceable, and different types of work head can be replaced according to actual needs, and when the part of handle main part is damaged, only need to replace the first half handle or the second half handle corresponding to the part, and the waste of material is reduced.

Description

Technical Field

[0001] This utility model relates to the field of oral medicine technology, and in particular to a periodontal scaling device with a replaceable working head and a detachable handle. Background Technology

[0002] The main causes of periodontitis are tartar and plaque that adhere to the root surface. Periodontitis is usually treated with subgingival scaling, which uses a fine periodontal scaling instrument to remove tartar and plaque from the root surface within the periodontal pocket. Current periodontal scaling instruments are of a single, fixed design; neither the working head nor the handle is replaceable. Replacing the instrument after each use results in material waste. While the instrument can be sterilized and reused multiple times, safety and hygiene issues may still exist, and the working head's performance deteriorates over time. If the working head breaks during use, it can easily lead to medical accidents. Utility Model Content

[0003] This invention provides a periodontal scaling device with a replaceable working head and a detachable handle, which addresses the problems mentioned above.

[0004] To achieve the above objectives, this utility model provides a periodontal scraper with replaceable working heads and detachable handles, including a handle body, several working heads, and several limiting sleeves. Each end of the handle body can be detachably fitted with a working head. The handle body includes a first half-handle and a second half-handle. The ends of the first half-handle and the second half-handle away from each other are respectively provided with a first threaded hole and a second threaded hole of the same specification. The ends of the first half-handle and the second half-handle facing each other are respectively provided with matching shank connecting screws and shank connecting screw holes. The shank connecting screw is inserted into the shank connecting screw hole and threadedly connected to it. The connecting end of each working head is provided with a head connecting screw protruding outward along the axial direction of the working head, and the head connecting screw matches both the first threaded hole and the second threaded hole. The limiting sleeve is selectively positioned between the first half-handle and the second half-handle and sleeved on the shank connecting screw. The size of the limiting sleeve is selected according to the required adjustable length of the handle body.

[0005] In one embodiment of this application, the first half-handle includes a first handle portion and a second handle portion connected together. The first handle portion is in the shape of a straight rod, and the second handle portion has a spindle structure that is larger in the middle and smaller at both ends. The first threaded hole and the handle connecting screw are respectively disposed on the ends of the second handle portion and the first handle portion away from each other. The second half-handle is symmetrically arranged with the first half-handle and includes a third handle portion and a fourth handle portion connected together. The third handle portion is in the shape of a straight rod, and the fourth handle portion has a spindle structure that is larger in the middle and smaller at both ends. The second threaded hole and the handle connecting screw hole are respectively disposed on the ends of the fourth handle portion and the third handle portion away from each other.

[0006] In one embodiment of this application, the outer surfaces of both the second handle and the fourth handle are in the shape of outwardly convex arcs.

[0007] In one embodiment of this application, a plurality of anti-slip protrusions are provided on the outer surfaces of the second handle and the fourth handle.

[0008] In one embodiment of this application, the anti-slip protrusion is a strip-shaped protrusion.

[0009] In one embodiment of this application, the anti-slip protrusion is a circular protrusion.

[0010] In one embodiment of this application, the outer side of the first half-handle is covered with a first elastic layer, and the outer side of the second half-handle is covered with a second elastic layer.

[0011] In one embodiment of this application, both the first elastic layer and the second elastic layer are made of silicone material.

[0012] In one embodiment of this application, the limiting cylinder is selected as an elastic cylinder.

[0013] In one embodiment of this application, the limiting cylinder is made of silicone material.

[0014] The periodontal scaling device with replaceable working head and detachable handle described in this utility model has the following advantages compared with the prior art: 1. By setting the working head and the handle body to be detachably connected, the handle can be reused and the working head can be replaced. Different types of working heads can be replaced according to actual needs, which not only ensures the safe and hygienic use of the working head, but also saves materials and reduces costs.

[0015] 2. By setting the first half handle and the second half handle to be detachably connected, when a part of the handle body is seriously damaged, only the first half handle or the second half handle corresponding to the damaged part needs to be replaced, without replacing the entire handle body, which can further reduce material waste.

[0016] 3. By setting the first half handle and the second half handle to be detachably connected via the handle connecting screw and the handle connecting thread, the length of the handle body can be flexibly adjusted to meet the adaptation needs of different dentists' hand sizes.

[0017] 4. By setting several limiting sleeves of different specifications that can be installed between the first half handle and the second half handle, the size of the limiting sleeve can be selected according to the required adjustable length of the handle body. Moreover, the design of the limiting sleeve can fill the gap between the first half handle and the second half handle, and prevent the handle body from forming a gripping groove, thereby improving the comfort and stability of the periodontal curette operation with replaceable working head and detachable handle.

[0018] Other beneficial effects of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of a periodontal scaling device with a replaceable working head and a detachable handle without a limit cylinder, as shown in an embodiment of this application. Figure 2 This is a schematic cross-sectional view of the periodontal curette with a replaceable working head and a detachable handle as shown in the embodiment of this application after explosive disassembly. Figure 3 This is a cross-sectional view of the periodontal curette with a limiting sleeve shown in an embodiment of this application.

[0020] [Explanation of Labels in the Attached Image] 10. First half handle; 11. First handle portion; 12. Second handle portion; 121. First threaded hole; 13. Handle connecting screw; 14. First elastic layer; 20. Second half handle; 21. Third handle; 211. Handle connecting screw hole; 22. Fourth handle; 221. Second threaded hole; 23. Second elastic layer; 30. Anti-slip protrusions; 40. Working head; 41. Head connecting screw; 50. Limiting cylinder. Detailed Implementation

[0021] To make the technical problems, solutions, and advantages of this utility model clearer, a detailed description will be provided below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a locking connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figures 1 to 3 This invention relates to a periodontal scaling device with replaceable working heads and a detachable handle. This device is used to remove subgingival calculus and plaque attached to the root surface, eliminating irritants that cause periodontitis. The device includes a handle body, several working heads 40, and several limiting cylinders 50. Each handle body has a detachable working head 40 at its end. This design allows for reusable handles and replaceable working heads 40, enabling the use of different types of working heads 40 as needed. This ensures safe and hygienic use of the working heads while saving materials and reducing costs.

[0025] like Figure 1 As shown, the handle body includes a first half-handle 10 and a second half-handle 20 that are detachably connected, as... Figure 2As shown, the first half handle 10 and the second half handle 20 are respectively provided with a first threaded hole 121 and a second threaded hole 221 of the same specification at the ends away from each other. The first half handle 10 and the second half handle 20 are respectively provided with a matching handle connecting screw 13 and a handle connecting screw hole 211 at the ends facing each other. The handle connecting screw 13 is inserted into the handle connecting screw hole 211 and is threadedly connected with the handle connecting screw hole 211, so that the first half handle 10 and the second half handle 20 can be detachably connected. When a part of the handle body is severely damaged, only the first half handle 10 or the second half handle 20 corresponding to the damaged part needs to be replaced, without replacing the entire handle body, which can further reduce material waste. Furthermore, by connecting the first half-handle 10 and the second half-handle 20 through the handle connecting screw 13 and the handle connecting screw hole 211, the length of the handle body can be flexibly adjusted. This design is mainly aimed at the adaptation needs of different dentists' hand sizes. When the dentist's hand size is large, if the single-end working head 40 is used for gingival scaling, the unused working head 40 on the other end may touch the palm due to being too close, resulting in inconvenience or potential injury. In this case, by rotating the first half-handle 10 or the second half-handle 20 to increase the distance between the first half-handle 10 and the second half-handle 20, the length of the handle body can be effectively extended, avoiding interference from the other end working head 40 to the palm. If the dentist's hand is small, the default handle body length may affect the flexibility of operation due to its length. By rotating the first half-handle 10 or the second half-handle 20 in the opposite direction to shorten the distance between the first half-handle 10 or the second half-handle 20, the length of the handle body can be reduced, improving comfort and treatment accuracy.

[0026] Figure 2 This is an exploded sectional view showing a periodontal scaling device with replaceable working heads and a detachable handle containing three different sizes of limit cylinders; such as... Figure 2 As shown, each working head 40 has a head connecting screw 41 protruding outward along the axis of the working head 40 at its connecting end. The head connecting screw 41 matches both the first threaded hole 121 and the second threaded hole 221. This arrangement makes it very easy to replace the working head 40.

[0027] like Figure 3As shown, the limiting sleeve 50 is selectively positioned between the first half-handle 10 and the second half-handle 20, and is fitted onto the handle connecting screw 13. When the limiting sleeve 50 is fitted onto the handle connecting screw 13, the outer surface of the limiting sleeve 50 is flush with the outer surfaces of the first half-handle 10 and the second half-handle 20. The size of the limiting sleeve 50 is selected according to the required adjustable length of the handle body. When the first half-handle 10 and the second half-handle 20 are separated due to length adjustment, if the length of the handle body is too short for the dentist's hand, the dentist can determine the target length that the handle body needs to be adjusted according to the size of their hand, and then select the corresponding specification of the limiting sleeve 50. During installation, first unscrew the handle connecting screw 13 from the handle connecting screw hole 211, then fit the limiting sleeve 50 onto the handle connecting screw 13 and screw it back into the handle connecting screw hole 211 until both the first half-handle 10 and the second half-handle 20 are pressed tightly against the limiting sleeve 50. This design fills the gap between the first half handle 10 and the second half handle 20, preventing the handle body from forming a gripping groove, thereby improving the comfort and stability of operating the periodontal scaling device with replaceable working heads and detachable handles.

[0028] In one embodiment of this application, such as Figure 2 As shown, the first half-handle 10 includes a first handle portion 11 and a second handle portion 12 connected together. The first handle portion 11 is in the shape of a straight rod, and the second handle portion 12 has a spindle structure that is larger in the middle and smaller at both ends. This structure makes it easy for the first handle portion 11 to fit the curvature of the palm when held. The first threaded hole 121 and the handle connecting screw 13 are respectively provided on the ends of the second handle portion 12 and the first handle portion 11 that are away from each other. The second half-handle 20 is symmetrically arranged with the first half-handle 10, including a third handle portion 21 and a fourth handle portion 22 connected together. The third handle portion 21 is in the shape of a straight rod, and the fourth handle portion 22 has a spindle structure that is larger in the middle and smaller at both ends. The second threaded hole 221 and the handle connecting screw hole 211 are respectively provided on the ends of the fourth handle portion 22 and the third handle portion 21 that are away from each other.

[0029] The above design creates a grip structure that fits the hand perfectly, thus greatly improving the grip comfort of the entire handle.

[0030] To further improve the grip comfort of the first half handle 10 and the second half handle 20, the outer surfaces of the second handle portion 12 and the fourth handle portion 22 are both convex arc-shaped.

[0031] Optionally, the outer surfaces of the second handle portion 12 and the fourth handle portion 22 are provided with a plurality of anti-slip protrusions 30. The anti-slip protrusions 30 can increase the stability of the grip. The anti-slip protrusions 30 can be strip-shaped protrusions, circular protrusions or other structures, and are not specifically limited.

[0032] Optionally, the outer side of the first half-handle 10 is covered with a first elastic layer 14, and the outer side of the second half-handle 20 is covered with a second elastic layer 23. The first elastic layer 14 and the second elastic layer 23 increase the overall grip comfort of the handle body. Furthermore, both the first elastic layer 14 and the second elastic layer 23 are made of silicone material. Silicone material has high-temperature sterilization resistance; when the first half-handle 10 and the second half-handle 20 are sterilized at high temperatures, the first elastic layer 14 of the first half-handle 10 and the second elastic layer 23 of the second half-handle 20 are not easily deformed under the high temperature of sterilization, ensuring the reusability of the first half-handle 10 and the second half-handle 20.

[0033] In one embodiment of this application, the limiting cylinder 50 is an elastic cylinder. The elasticity of the elastic cylinder allows the limiting cylinder 50 to have a telescopic function. The length of the limiting cylinder 50 can be changed by the compressive force exerted on it by the first half-handle 10 and the second half-handle 20, thereby giving the handle body a wider range of length adjustment. Furthermore, the limiting cylinder 50 is made of silicone material. Silicone material has high-temperature sterilization resistance and is not easily deformed under high temperatures. Therefore, the limiting cylinder 50 can be reused after high-temperature sterilization, achieving reusability.

[0034] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A periodontal scaling device with a replaceable working head and a detachable handle, characterized in that, The device includes a handle body, several working heads, and several limiting sleeves. Each handle body has a working head detachably mounted on its end. Each handle body includes a first half-handle and a second half-handle. The ends of the first and second half-handles away from each other are respectively provided with a first threaded hole and a second threaded hole of the same specification. The ends of the first and second half-handles facing each other are respectively provided with matching shank connecting screws and shank connecting screw holes. The shank connecting screw is inserted into the shank connecting screw hole and threadedly connected to it. Each working head has a head connecting screw protruding outward along the axis of the working head at its connecting end. The head connecting screw matches both the first and second threaded holes. The limiting sleeve is selectively positioned between the first and second half-handles and fitted onto the shank connecting screw. The size of the limiting sleeve is selected according to the required adjustable length of the handle body.

2. The periodontal scaling device with replaceable working head and detachable handle according to claim 1, characterized in that, The first half-handle includes a first handle portion and a second handle portion connected together. The first handle portion is in the shape of a straight rod, and the second handle portion has a spindle structure that is larger in the middle and smaller at both ends. The first threaded hole and the handle connecting screw are respectively located on the ends of the second handle portion and the first handle portion away from each other. The second half-handle is symmetrically arranged with the first half-handle and includes a third handle portion and a fourth handle portion connected together. The third handle portion is in the shape of a straight rod, and the fourth handle portion has a spindle structure that is larger in the middle and smaller at both ends. The second threaded hole and the handle connecting screw hole are respectively located on the ends of the fourth handle portion and the third handle portion away from each other.

3. The periodontal scaling device with replaceable working head and detachable handle according to claim 2, characterized in that, The outer surfaces of both the second and fourth handles are convex arc-shaped.

4. The periodontal scaling device with replaceable working head and detachable handle according to claim 2, characterized in that, The outer surfaces of the second and fourth handles are provided with several anti-slip protrusions.

5. The periodontal scaling device with replaceable working head and detachable handle according to claim 4, characterized in that, The anti-slip protrusions are strip-shaped protrusions.

6. The periodontal scaling device with replaceable working head and detachable handle according to claim 4, characterized in that, The anti-slip protrusions are circular.

7. The periodontal scaling device with replaceable working head and detachable handle according to claim 1, characterized in that, The outer side of the first half-handle is covered with a first elastic layer, and the outer side of the second half-handle is covered with a second elastic layer.

8. The periodontal scaling device with replaceable working head and detachable handle according to claim 7, characterized in that, Both the first elastic layer and the second elastic layer are made of silicone material.

9. The periodontal scaling device with replaceable working head and detachable handle according to claim 1, characterized in that, The limiting cylinder is made of elastic material.

10. The periodontal scaling device with replaceable working head and detachable handle according to claim 9, characterized in that, The limiting cylinder is made of silicone material.

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