JP4172879B2 - Oral cleaning tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
This invention is, for example, when a caregiver inserts the tip of a cleaning tool into the oral cavity of a bedridden person or a physically handicapped person and drives a pump to supply and discharge liquids such as water and chemicals, By cleaning with a cleaning member, for example, removing residual substances such as food residue remaining in the oral cavity, or removing substances such as tongue coating produced in the mucosa due to dirt and bacteria in the oral cavity, It is related with the intraoral cleaning tool which cleans the inside.
[Prior art]
[0002]
Conventionally, as this type of intraoral cleaning tool, a liquid supply port that communicates with the liquid supply path and a liquid discharge port that communicates with the liquid discharge path are opened in the brush head, and the liquid supplied from the liquid supply port is discharged from the liquid discharge port. An oral cleaning brush that cleans the oral cavity with a brush is known (Japanese Patent Laid-Open No. 8-112143).
[0003]
[Problems to be solved by the invention]
However, in such a brush for oral cleaning, there is a gap between the brushes, so that only by scraping with such a brush, tongue coating produced in the mucous membrane part due to dirt and bacteria in the oral cavity, etc. The material could not be removed sufficiently.
[0004]
Therefore, an object of the present invention is to solve such a conventional problem, and in particular, to more reliably remove substances such as tongue coating produced in the mucosa due to dirt and bacteria in the oral cavity. .
[0005]
[Means for Solving the Problems]
Therefore, in the intraoral cleaning tool, the invention according to claim 1 is provided with a liquid supply path and a drain path on the shaft, a liquid supply port communicating with the liquid supply path at the tip of the shaft, and the drainage A drainage port leading to the road, and attaching a porous cleaning member covering the periphery of the side surface of the shaft, while the liquid supply port and the drainage port are located inside the cleaning member , The liquid supply port and the liquid discharge port are opened by being shifted in the axial direction of the shaft, and an annular convex portion is formed on the outer periphery of the shaft between the liquid supply port and the liquid discharge port. And
[0008]
The invention according to claim 2 is characterized in that in the intraoral cleaning tool according to claim 1 , the shaft tip end surface of the annular convex portion is an umbrella-shaped inclined surface.
[0009]
A third aspect of the present invention is the intraoral cleaning tool according to the first or second aspect , wherein a plurality of outward projections are provided on the outer periphery of the annular convex portion.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a partially enlarged cross-sectional view of the intraoral cleaning tool of the present invention. The intraoral cleaning tool 1 includes a shaft 2 and a cleaning member 3.
[0012]
First, the shaft 2 is made of a resin material by integral molding, a drainage path 5 is provided at the center, and a liquid supply path 4 having a slightly smaller diameter is provided in parallel therewith. Then, at the end of the shaft 2, a liquid supply port 6 that communicates with the liquid supply path 4 and a liquid discharge port 7 that is larger than that and communicates with the drainage path 5 are opened.
[0013]
At this time, as shown in FIG. 2, the liquid supply port 6 and the liquid discharge port 7 are provided on the same axis L of the shaft 2 and shifted in the axial direction.
[0014]
Next, the cleaning member 3 is made of a porous material such as sponge, and a through hole 8 is formed in the center of the columnar shape. The cleaning member 3 is attached to the tip of the shaft 2 by covering the liquid supply port 6 and the drainage port 7 through the shaft 2 through the through hole 8.
[0015]
Then, liquids such as water and chemicals that have been sent to the liquid supply path 4 by the supply / discharge action of a pump, which will be described later, are discharged from the liquid supply port 6 to the cleaning member 3, and the liquid is sufficiently passed through the cleaning member 3. The cleaning member 3 cleans and removes the inside of the oral cavity, and drains the residual material in the oral cavity and substances such as tongue coating produced by dirt and bacteria in the oral cavity through the drainage port 7 to the drainage path 5. Aspirate and drain.
[0016]
In this example, the liquid supply port 6 and the liquid discharge port 7 are provided on the same axis L of the shaft 2 as shown in FIG. 2, but the liquid discharge port 7 is provided on the axis L as shown in FIG. The liquid supply port 6 may be provided on the axis L1 shifted by e in the circumferential direction. As a result, the liquid supplied from the liquid supply port 6 can be prevented from being immediately sucked and discharged from the liquid discharge port 7, and the liquid can sufficiently rotate around the cleaning member 3.
[0017]
Now, as shown in FIG. 4, in order to prevent the cleaning member 3 from coming off from the shaft 2, four annular protrusions 9 are formed on the outer periphery of the shaft 2, and two of them are the liquid supply port 6 and the drainage. It may be formed between the mouth 7. As a result, the annular convex portion 9 blocks the gap between the liquid supply port 6 and the liquid discharge port 7, and the liquid can be sufficiently supplied to the surface of the cleaning member 3 before being sucked and discharged to the liquid discharge port 7.
[0018]
Further, the surface 9a on the shaft front end side of the annular convex portion 9 may be an umbrella-shaped inclined surface as shown in FIG. Thereby, even when the annular convex portion 9 is provided, the tip of the shaft 2 can be easily inserted into the through hole 8 of the cleaning member 3, thereby preventing the cleaning member 3 from coming off from the shaft 2 during use. be able to.
[0019]
Furthermore, in order to further prevent the cleaning member 3 from coming off from the shaft 2, the tip end portion 9 b of the shaft tip end surface 9 a may be sharpened.
[0020]
Furthermore, as shown in FIG. 6, a plurality of outward projections 10 may be provided on the outer periphery of the annular projection 9. Thereby, the use of the cleaning member 3 from the shaft 2 can be further prevented during use.
[0021]
Incidentally, as shown in FIG. 7, the shaft 2 may be configured by covering a rigid pipe 11 having the drainage path 5 with an elastic cap 12 that forms the liquid supply path 4 between the pipe 11. Then, the liquid supply port 6 is opened in the elastic cap 12, and the liquid discharge port 7 is opened through both the elastic cap 12 and the pipe 11. Then, the cleaning member 3 is attached to the outside of the elastic cap 12 covering the liquid supply port 6 and the liquid discharge port 7.
[0022]
Accordingly, the liquid supply path 4 and the drainage path 5 are provided, and the shaft 2 having the liquid supply port 6 and the drainage port 7 can be easily constructed and assembled.
[0023]
In this example, as shown in FIG. 7, a convex portion 13 is provided on the outer periphery of the rigid pipe 11 in the circumferential direction, and is tightly fitted between the inner surface of the elastic cap 12. Thereby, the communication between the liquid supply path 4 and the drainage path 5 through the pipe 11 and the elastic cap 12 can be reliably blocked.
[0024]
By the way, in order to use the intraoral cleaning tool 1 of the present invention described above, for example, as shown in FIG. 8, the liquid supply path 4 is connected to a liquid supply tank 15 via a liquid supply pipe 14, and further, A pump 17 is connected via an exhaust pipe 16.
[0025]
On the other hand, the drainage path 5 is connected to a drainage tank 19 via a drainage pipe 18 and further connected to a pump 17 via an intake pipe 20.
[0026]
Then, a switch (not shown) is turned on to operate the pump 17 to send air into the liquid supply tank 15 through the exhaust pipe 16 and suck air from the liquid discharge tank 19.
[0027]
Thereby, the liquid in the liquid supply tank 15 is put into the liquid supply path 4 of the intraoral cleaning tool 1 through the liquid supply pipe 14. Then, as described above, the oral cavity is cleaned with the cleaning member 3.
[0028]
Further, the pump 17 is actuated to reduce the pressure in the drainage tank 19 and suck the drainage liquid in the oral cleaning tool 1 through the drainage pipe 18.
[0029]
【The invention's effect】
Therefore, according to the present invention, since the porous cleaning member is attached to the tip of the shaft, the surface of the cleaning member is scraped off, and in particular, substances such as tongue moss generated in the mucous membrane part due to dirt and bacteria in the oral cavity are more removed. Can be removed reliably.
[0030]
In addition to the effects described above, the liquid supply port and the liquid discharge port are opened in the axial direction and circumferential direction of the shaft, so that the liquid supplied from the liquid supply port is prevented from being immediately sucked and discharged from the liquid discharge port. The liquid can be sufficiently turned around the cleaning member.
[0031]
Furthermore , since the liquid supply port and the liquid discharge port are shifted and opened in the axial direction of the shaft, an annular convex portion is formed on the outer periphery of the shaft between the liquid supply port and the liquid discharge port. In addition to blocking by the annular convex part, the liquid supplied from the liquid supply port is prevented from being immediately sucked and discharged from the liquid discharge port, and the liquid is sufficiently supplied to the surface of the cleaning member and then discharged to the liquid discharge port. Can do.
[0032]
According to the second aspect of the present invention, since the surface of the annular convex portion on the shaft front end side is an umbrella-shaped inclined surface, in addition to the above effects, the cleaning member can be easily inserted from the tip of the shaft. Further, it is possible to prevent the cleaning member from coming off from the shaft during use.
[0033]
According to the invention of claim 3 , since a plurality of outward projections are provided on the outer periphery of the annular convex portion, in addition to the above effects, it is possible to further prevent the cleaning member from coming off the shaft during use. it can.
[Brief description of the drawings]
FIG. 1 is a partially enlarged sectional view of an intraoral cleaning tool according to the present invention.
FIG. 2 is a partial plan view of a shaft showing an example in which a liquid supply port and a liquid discharge port of the shaft are opened by being shifted in the axial direction.
FIG. 3 is a partial plan view of a shaft showing an example in which a liquid supply port and a liquid discharge port of the shaft are opened in an axial direction and a circumferential direction.
FIG. 4 is a partial cross-sectional view of an intraoral cleaning tool showing an example in which an annular convex portion is formed on the shaft.
FIG. 5 is a partial plan view of the shaft showing an example in which the surface on the tip end side of the annular convex portion is an umbrella-shaped inclined surface.
FIG. 6 is an end view of a shaft showing an example in which a plurality of outward projections are provided on the outer periphery of the annular convex portion.
FIG. 7 is a partial cross-sectional view of a shaft showing an example in which the shaft is configured by covering a rigid pipe with an elastic cap.
FIG. 8 is a schematic configuration explanatory view showing an example of use of the intraoral cleaning tool of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Intraoral cleaning tool 2 Shaft 3 Cleaning member 4 Liquid supply path 5 Drainage path 6 Liquid supply port 7 Drainage port 8 Through-hole 9 Ring-shaped convex part 9a Shaft tip side surface 9b Tip part 10 Protrusion 11 Pipe 12 Elastic cap 13 Convex portion 14 Supply pipe 15 Supply tank 16 Exhaust pipe 17 Pump 18 Drain pipe 19 Drain tank 20 Intake pipe

Claims (3)

A shaft is provided with a liquid supply path and a drainage path, and at the tip of the shaft, a liquid supply port that communicates with the liquid supply path and a drainage port that communicates with the drainage path are opened.
While attaching a porous cleaning member covering the periphery of the side of the tip of the shaft, the liquid supply port and the drainage port are located inside the cleaning member ,
The liquid supply port and the liquid discharge port are shifted in the axial direction of the shaft and formed between the liquid supply port and the liquid discharge port, and an annular convex portion is formed on the outer periphery of the shaft . Intraoral cleaning tool. The intraoral cleaning tool according to claim 1 , wherein a surface on the shaft front end side of the annular convex portion is an umbrella-shaped inclined surface. The intraoral cleaning tool according to claim 1 or 2 , wherein a plurality of outward projections are provided on an outer periphery of the annular convex portion.

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