Medical quantity-controlled toothbrush

Abstract

The utility model discloses a medical quantity control toothbrush which comprises a brush handle, a brush head, a sponge cover, a quantitative tube, a liquid storage tube and a negative pressure suction tube, the brush head is connected with one end of the brush handle and provided with a tooth groove suitable for containing teeth, and the brush head is provided with a plurality of suction holes and a plurality of medicine injection holes leading to the tooth groove. The sponge cover sleeves the outer side of the brush head; the quantitative tube is constant in volume and connected with one end, far away from the brush head, of the brush handle, the quantitative tube is communicated with the medicine injection hole through a first tube, and a first control valve is arranged between the quantitative tube and the first tube; a first one-way valve for allowing liquid in the liquid storage pipe to flow into the quantitative pipe and a second one-way valve for allowing air in the quantitative pipe to flow into the liquid storage pipe are arranged between the liquid storage pipe and the quantitative pipe; the negative pressure suction tube is connected with the brush handle and communicated with the suction hole through a second tube, and a second control valve is arranged between the negative pressure suction tube and the second tube. Therefore, the medicine feeding amount can be controlled, soft tissue in the oral cavity of a patient is not prone to being scratched, and the medicine injection process is simpler and more convenient.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, specifically to a medical-grade controlled-volume toothbrush. Background Technology

[0002] When providing oral care to patients with limited mouth opening and inability to rinse their mouths due to oral and maxillofacial diseases, hospitals typically use the traditional method of using curved hemostatic forceps to hold saline-soaked cotton balls for wiping. This method has several drawbacks, including incomplete cleaning of oral cavity and interdental spaces, easy snagging and tangling of cotton fibers with the fixed wire ligature, which can easily lead to gingival redness, bleeding, and halitosis. Furthermore, patients are less likely to accept the use of metal instruments.

[0003] To address the above shortcomings, Chinese utility model patent CN202077797U discloses a dual-chamber medical toothbrush with a flushing and suction function. This toothbrush comprises bristles, a perforated brush head, a handle, a flushing chamber, a suction chamber, a flushing tube interface, and a negative pressure suction interface, all sequentially connected and interlocked. However, during use, the aforementioned patented medical toothbrush makes it difficult to control the amount of medication administered in a single flush. Excessive medication may detach from the brush head and enter the mouth, posing a risk of accidental ingestion. Furthermore, if used with a syringe, medical personnel cannot operate the toothbrush and syringe simultaneously with one hand, making it inconvenient and time-consuming to administer medication. Additionally, the bristles on this type of toothbrush can easily damage the soft tissues in the patient's mouth. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a medical-grade controlled-volume toothbrush. This invention aims to at least partially solve one of the technical problems in existing technologies.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A medical controlled-dose toothbrush includes a handle, a brush head, a sponge cover, a metering tube, a liquid reservoir, and a negative pressure suction tube. The brush head is connected to one end of the handle and has a groove suitable for accommodating teeth. The brush head has multiple injection holes leading into the grooves and multiple suction holes. The sponge cover is fitted over the outside of the brush head. The metering tube has a fixed volume and is connected to the end of the handle away from the brush head. The metering tube communicates with the injection holes via a first tube, and a first control valve is provided between the metering tube and the first tube to control whether there is continuity between them. The liquid reservoir is elastically deformable and has a first one-way valve allowing liquid in the reservoir to flow into the metering tube and a second one-way valve allowing air in the metering tube to flow into the reservoir. The negative pressure suction tube is connected to the end of the handle away from the brush head and communicates with the suction holes via a second tube. A second control valve is provided on the negative pressure suction tube to control whether there is continuity.

[0007] In some embodiments, the brush head includes a first head, a second head, and a third head, with the first head and the third head disposed on both sides of the second head and forming a toothed groove between them; each of the first head, the second head, and the third head is provided with an injection hole and an extraction hole, and is respectively fitted with a first sponge cover, a second sponge cover, and a third sponge cover.

[0008] In some embodiments, the first head, the second head, and the third head are all connected to the brush handle, and the included angle between the first head and the second head does not exceed 90 degrees.

[0009] In some embodiments, the first sponge cover has a plurality of wavy first protrusions on the tooth-facing surface, and the third sponge cover has a plurality of wavy third protrusions on the tooth-facing surface.

[0010] In some embodiments, the extension directions of the first protrusion and the third protrusion are perpendicular to the length direction of the brush handle.

[0011] In some embodiments, the second sponge cover has a plurality of V-shaped second protrusions on the tooth-facing surface.

[0012] In some embodiments, a plurality of first protrusions, a plurality of second protrusions, and a plurality of third protrusions are arranged at equal intervals along the length of the brush handle, and the included angle of the second protrusions is 120 degrees.

[0013] In some embodiments, the back of the first sponge cover, the second sponge cover, and the third sponge cover are provided with a plurality of first grooves and second grooves, the plurality of first grooves are parallel to each other, the plurality of second grooves are parallel to each other, and the first grooves and the second grooves intersect.

[0014] In some embodiments, the first groove and the second groove are perpendicular to each other and form a 45-degree angle with the brush handle.

[0015] In some embodiments, a dosing valve is provided on the liquid storage pipe.

[0016] Compared with existing technologies, the medical dose-controlled toothbrush provided by this utility model allows the medication to be absorbed by the sponge cover after flowing out of the injection hole, rather than flowing directly into the patient's mouth. Furthermore, medical personnel can control the flow rate of the medication through the first control valve, thus reducing the risk of accidental swallowing and ensuring the duration and effectiveness of the medication. In addition, the use of a sponge cover instead of bristles makes the toothbrush more comfortable for the patient and reduces the risk of scratching the soft tissues in the mouth. Crucially, the operation of this medical dose-controlled toothbrush can be completed with one hand, making the medication injection process more time-saving and labor-saving. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view of an embodiment of the present utility model.

[0019] Figure 2 This is a rear view of an embodiment of the present utility model.

[0020] Figure 3 This is a right view of an embodiment of the present utility model.

[0021] Figure 4 This is a left view of an embodiment of the present utility model.

[0022] Figure 5 This is a top view of an embodiment of the present utility model.

[0023] Figure 6 This is a bottom view of an embodiment of the present utility model.

[0024] Figure 7 yes Figure 1 A magnified view of the middle brush head area.

[0025] Figure 8 yes Figure 2 A magnified view of the middle brush head area.

[0026] Figure 9 yes Figure 7 A cross-sectional view along line BB.

[0027] Figure 10 yes Figure 8 A diagram showing the effect after removing the foam cover.

[0028] Figure 11 yes Figure 1 Cross-sectional view along line AA.

[0029] Figure 12 This is a cross-sectional view of the metering tube and the storage tube in an embodiment of this utility model.

[0030] Figure 13 This is a cross-sectional view of the negative pressure suction tube in an embodiment of this utility model.

[0031] Figure 14 yes Figure 12 A magnified view of a portion of point C.

[0032] The annotations in the attached figures are explained as follows:

[0033] In the diagram: 1. Brush handle; 2. Brush head; 201. First head; 202. Second head; 203. Third head; 3. Sponge cover; 301. First sponge cover; 3011. First protrusion; 302. Second sponge cover; 3021. Second protrusion; 303. Third sponge cover; 4. Metering tube; 5. Liquid storage tube; 6. First tube; 7. First control valve; 8. First check valve; 9. Second check valve; 10. Dosing valve; 11. Negative pressure suction tube; 12. Second tube; 13. Partition; 1301. Air hole; 15. Second control valve; 16. Cover plate; 17. Injection hole; 18. Suction hole; 19. First groove; 20. Second groove; 21. Four-way connector; 22. Toothed groove. Detailed Implementation

[0034] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0035] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0036] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application 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 application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0038] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0039] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0040] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0041] See Figures 1-14 As shown, this utility model provides a medical controlled-dose toothbrush, which includes a handle 1, a brush head 2, a sponge cover 3, a metering tube 4, a liquid storage tube 5, and a negative pressure suction tube 11; the brush head 2 is connected to one end of the handle 1 and has a tooth groove 22 suitable for accommodating teeth, and the brush head 2 has multiple injection holes 17 leading into the tooth groove 22; the sponge cover 3 is sleeved on the outside of the brush head 2, and the sponge cover 3 is made of sponge material, so the sponge cover 3 is densely covered with holes; the metering tube 4 is made of hard materials such as plastic or glass, and the volume of the metering tube 4 is... The metering tube 4 is fixed and connected to the end of the brush handle 1 away from the brush head 2. The metering tube 4 is connected to the injection hole 17 through the first tube 6. A first control valve 7 (i.e., a switching valve) is provided between the metering tube 4 and the first tube 6 to control whether the metering tube 4 and the first tube 6 are connected. The liquid storage tube 5 can be made of rubber. The liquid storage tube 5 can be elastically deformed by squeezing it by hand. A first one-way valve 8 that allows the liquid in the liquid storage tube 5 to flow into the metering tube 4 and a second one-way valve 9 that allows the air in the metering tube 4 to flow into the liquid storage tube 5 are provided between the liquid storage tube 5 and the metering tube 4.

[0042] The negative pressure suction tube 11 is connected to the end of the brush handle 1 away from the brush head 2. The brush head 2 has multiple suction holes 18 on its surface away from the tooth groove 22. The negative pressure suction tube 11 communicates with the suction holes 18 through a second tube 12. A second control valve 15 is provided on the negative pressure suction tube 11 to control whether the negative pressure suction tube 11 is open. Figure 13As shown, the negative pressure suction tube 11 is a hollow cylinder. The end of the negative pressure suction tube 11 furthest from the brush head 2 can be connected to a negative pressure connector or negative pressure source to suction out liquid from the oral cavity. To facilitate observation of the color of the liquid drawn into the negative pressure suction tube 11, it is made of a colorless and transparent material. The diameter of the suction holes 18 is approximately 0.9–1.1 mm, and their number can be adjusted according to the size of the brush head 2. The second control valve 15 is used to control the opening and closing of the negative pressure suction tube 11. When it is necessary to suction out liquid (medication or oral secretions) from the patient's oral cavity, the second control valve 15 can be manually opened, and then the liquid in the patient's oral cavity can be drawn into the negative pressure suction tube 11.

[0043] like Figure 12 As shown, both the metering tube 4 and the reservoir tube 5 are hollow cylinders with equal outer diameters. A partition 13 separates the metering tube 4 and the reservoir tube 5, and both the first one-way valve 8 and the second one-way valve 9 are mounted on the partition 13. To facilitate observation of the amount of medicine in the metering tube 4 and the reservoir tube 5, both can be made of transparent material. The volume of the reservoir tube 5 is larger than that of the metering tube 4; for example, the volume of the reservoir tube 5 is 30 ml and the volume of the metering tube 4 is 5 ml, allowing the reservoir tube 5 to deliver medicine into the metering tube 4 multiple times.

[0044] When using the medical-grade controlled-volume toothbrush, hold the brush head 2 at the bottom and the reservoir tube 5 at the top. First, inject the medication into the reservoir tube 5, then squeeze the reservoir tube 5 by hand to allow the medication to flow into the metering tube 4 through the first one-way valve 8. After the medication enters the metering tube 4, the air inside the metering tube 4 is compressed and the pressure increases. When the air pressure inside the metering tube 4 reaches a certain value, the second one-way valve 9 is opened, and the air inside the metering tube 4 enters the reservoir tube 5 through the second one-way valve 9. When the pressure inside the metering tube 4 and the pressure inside the reservoir tube 5 tend to be balanced, the second one-way valve 9 closes again. The first one-way valve 8 and the second one-way valve 9 ensure that the medication flows smoothly from the reservoir tube 5 into the metering tube 4. After sufficient medication is injected into the metering tube 4, the first control valve 7 can be opened. Under the influence of gravity, the medication in the metering tube 4 flows through the first tube 6 to the injection port 17. After flowing out of the injection port 17, the medication is absorbed by the sponge cover 3. Then, medical staff can use the medication-soaked sponge cover 3 to brush the patient's teeth or perform oral care. The brush head 2 on this medical metering toothbrush can simultaneously contact the inner and outer surfaces and the crests of the patient's teeth, thus achieving a comprehensive cleaning of the teeth.

[0045] During use, the medication in this medical-grade controlled-dose toothbrush is absorbed by the sponge cover 3 after flowing out of the injection port 17, instead of flowing directly into the patient's mouth. Furthermore, medical personnel can control the amount of medication administered per dose through the metering tube 4 and the first control valve 7. This prevents large amounts of medication from entering the mouth directly, reducing the risk of accidental swallowing and ensuring the duration and effectiveness of the medication. The use of the sponge cover 3 instead of bristles makes the toothbrush more comfortable for patients and reduces the risk of scratching the soft tissues in the mouth. Crucially, the toothbrush can be operated with one hand, making the medication administration process more time-saving and labor-saving.

[0046] See Figures 5 to 10 As shown, in some embodiments, the brush head 2 includes a first head 201, a second head 202, and a third head 203. The first head 201 and the third head 203 are located on both sides of the second head 202, and the space between them forms the aforementioned tooth groove 22. Each of the first head 201, the second head 202, and the third head 203 is provided with an injection hole 17 and an extraction hole 18, and is respectively fitted with a first sponge cover 301, a second sponge cover 302, and a third sponge cover 303. During use, the second sponge cover 302 on the second head 202 is used to contact the tooth crest, and the sponge covers 301 and the third head 203 are used to contact the inner and outer surfaces of the teeth. The sponge covers 3 on the brush head 2 encircle the teeth on three sides, which helps to improve cleaning efficiency and save operation time.

[0047] See Figure 5 and Figure 10 As shown, in this invention, the first head 201, the second head 202, and the third head 203 are all connected to the brush handle 1, and the included angle α between the first head 201 and the second head 202 does not exceed 90 degrees. The first sponge cover 301, the second sponge cover 302, and the third sponge cover 303 are all provided with circular holes corresponding to the positions of the injection hole 17 and the suction hole 18. The diameter of the circular holes on the sponge cover 3 is slightly larger than the diameter of the injection hole 17 and the suction hole 18. When a large amount of medication is administered, the liquid medication can be directly sprayed into the patient's oral cavity through the circular holes on the sponge cover 3, thereby achieving the effect of rinsing the oral cavity.

[0048] See Figure 9 As shown, in some embodiments, the first sponge cover 301 has multiple wavy first protrusions 3011 on the surface facing the teeth, and the third sponge cover 303 has multiple wavy third protrusions (not shown in the figure) on the surface facing the teeth. The structure of the third protrusions is the same as that of the first protrusions 3011, and the extension direction of the first protrusions 3011 and the third protrusions is the same as the length direction of the brush handle 1. Figure 1 The direction indicated by the double-headed arrow D is perpendicular. See also Figure 7As shown, the second sponge cover 302 has a V-shaped second protrusion 3021 on the tooth-facing surface. For example, the included angle of the second protrusion 3021 (i.e., the included angle of the "V") is 120 degrees. Multiple first protrusions 3011, multiple second protrusions 3021, and multiple third protrusions are arranged at equal intervals along the length of the brush handle 1. With the first protrusions 3011, second protrusions 3021, and third protrusions on the sponge cover 3, when brushing with this medical volume-controlled toothbrush, the friction area and effect of the sponge cover 3 on the teeth is large in the direction of toothbrush movement, thus the medical volume-controlled toothbrush has a better cleaning effect.

[0049] In some embodiments, a dosing valve 10 is provided on the liquid storage pipe 5. For example... Figure 12 As shown, the dosing valve 10 can be a cap located at the lower end of the liquid storage tube 5. When it is necessary to inject medicine into the liquid storage tube 5, the cap can be removed, and after the injection is completed, the cap can be put back on.

[0050] See Figure 2-4 and Figure 8 As shown, in some embodiments, the back surfaces of the first sponge cover 301, the second sponge cover 302, and the third sponge cover 303 are each provided with multiple first grooves 19 and second grooves 20. The multiple first grooves 19 are parallel to each other, and the multiple second grooves 20 are parallel to each other, with the first grooves 19 and second grooves 20 intersecting. For example, the first grooves 19 and second grooves 20 are perpendicular to each other and form a 45-degree angle with the brush handle 1. The back surface of the sponge cover 3 can serve to wipe the oral cavity and absorb secretions from affected areas of the oral cavity. The first grooves 19 and second grooves 20 form a concave-convex structure on the back surface of the sponge cover 3, increasing the contact friction between the sponge cover 3 and the inner surface of the oral cavity or affected areas. Moreover, the first grooves 19 and second grooves 20 in the sponge cover 3 can accommodate foreign objects in the oral cavity, thereby effectively removing foreign objects from the oral cavity.

[0051] See Figure 9 As shown, when the brush head 2 consists of three independent first heads 201, second heads 202 and third heads 203, a four-way connector 21 can be set at one end of the first tube 6 near the brush head 2. The four-way connector 21 divides the first tube 6 into three branches and connects them to the injection holes 17 on the first head 201, second head 202 and third head 203 respectively. Similarly, a four-way connector 21 is also set at one end of the second tube 12 near the brush head 2. The four-way connector 21 divides the second tube 12 into three branches and connects them to the suction holes 18 on the first head 201, second head 202 and third head 203 respectively.

[0052] The principle of the second one-way valve 9 in this utility model can be found in [reference needed]. Figure 14 As shown, an air hole 1301 is provided on the partition 13, and a cover plate 16 is provided inside the liquid storage tube 5. One end of the cover plate 16 (as shown) Figure 14The right end of the cover plate 16 is elastically connected to the partition plate 13. When the gas pressure in the liquid storage tube 5 and the metering tube 4 are equal, the elasticity of the connection between the cover plate 16 and the partition plate 13 causes the cover plate 16 to be tightly attached to the partition plate 13, and the cover plate 16 blocks the vent 1301. At this time, neither liquid nor gas in the metering tube 4 can pass through the vent 1301. When the gas pressure in the metering tube 4 is greater than the gas pressure in the liquid storage tube 5, the gas in the metering tube 4 pushes the cover plate 16 open and enters the liquid storage tube 5 through the vent 1301. The principle of the first check valve 8 can be the same as that of the second check valve 9. In specific implementation, other commercially available check valves can also be used for the first check valve 8 and the second check valve 9.

[0053] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0054] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A medical controlled-release toothbrush, characterized by comprising: The utility model relates to a toothbrush, comprising: a brush handle; a brush head connected to one end of the brush handle and provided with a plurality of tooth grooves suitable for accommodating teeth, a plurality of injection holes leading to the tooth grooves, and a plurality of suction holes; a sponge cover sleeved on the outside of the brush head; a fixed-dose tube with a fixed volume connected to the end of the brush handle away from the brush head, the fixed-dose tube being in communication with the injection holes through a first tube, a first control valve being provided between the fixed-dose tube and the first tube for controlling whether the fixed-dose tube and the first tube are in communication; a liquid storage tube elastically deformable and provided with a first one-way valve allowing liquid in the liquid storage tube to flow into the fixed-dose tube and a second one-way valve allowing air in the fixed-dose tube to flow into the liquid storage tube between the fixed-dose tube and the liquid storage tube; and a negative pressure suction tube connected to the end of the brush handle away from the brush head, the negative pressure suction tube being in communication with the suction holes through a second tube, a second control valve being provided on the negative pressure suction tube for controlling whether the negative pressure suction tube is in communication.

2. The medical controlled-release toothbrush according to claim 1, wherein: The brush head comprises a first head, a second head, and a third head, the first head and the third head being arranged on both sides of the second head and forming the tooth grooves therebetween; the first head, the second head, and the third head are each provided with the injection holes and the suction holes and are each sleeved with a first sponge cover, a second sponge cover, and a third sponge cover.

3. The medical controlled-release toothbrush according to claim 2, wherein: The first head, the second head, and the third head are connected to the brush handle, and the included angle between the first head and the second head is not more than 90 degrees.

4. The medical controlled-release toothbrush according to claim 2, wherein: The first sponge cover is provided with a plurality of first protrusions in wave shape on the surface facing the teeth, and the third sponge cover is provided with a plurality of third protrusions in wave shape on the surface facing the teeth.

5. The medical controlled release toothbrush of claim 4 wherein: The extending directions of the first protrusions and the third protrusions are perpendicular to the length direction of the brush handle.

6. The medical controlled release toothbrush of claim 4 wherein: The second sponge cover is provided with a plurality of second protrusions in V shape on the surface facing the teeth.

7. The medical controlled release toothbrush of claim 6 wherein: The plurality of first protrusions, the plurality of second protrusions, and the plurality of third protrusions are respectively arranged at equal intervals along the length direction of the brush handle, and the included angle of the second protrusions is 120 degrees.

8. The medical controlled-release toothbrush of claim 2 wherein: The back surfaces of the first sponge cover, the second sponge cover, and the third sponge cover are each provided with a plurality of first grooves and a plurality of second grooves, the plurality of first grooves are parallel to each other, the plurality of second grooves are parallel to each other, and the first grooves intersect the second grooves.

9. The medical controlled release toothbrush of claim 8 wherein: The first grooves and the second grooves are perpendicular to each other and form an included angle of 45 degrees with the brush handle.

10. The medical controlled-release toothbrush according to any one of claims 1 to 9, wherein: The liquid storage tube is provided with a dosing valve.

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