JP2019024944A - Washing device - Google Patents

Abstract

To make a mixture of steam and air be hardly scattered in a washing device.SOLUTION: A washing device 1 includes: a steam generating part 11 for supplying steam; a gas supply part 12 for supplying air; a mixing part 13 for generating steam mixed with air by mixing supplied steam and supplied air; a nozzle part 14 for jetting the steam mixed with generated air; and an applicator part 15 in which the nozzle part 14 is provided at a side of jetting the steam mixed with generated air, and an opening 152 for defining a region in which the steam mixed with generated air is sprinkled to a washing object R is formed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cleaning apparatus.

  Conventionally, a cleaning device has been used. Patent Document 1 discloses a cleaning apparatus that has a water vapor generating unit, a water vapor fluid adjusting unit, a water vapor condensing adjusting unit, and a liquid droplet ejecting unit, and ejects liquid droplets formed by mixing superheated water vapor and air. Has been.

Japanese Patent No. 5757003

  As shown in Patent Document 1, when a droplet in which water vapor and air are mixed is generated and ejected onto a human body, for example, there has been a problem that the mixture of water vapor and air is scattered.

  Then, this invention is made | formed in view of these points, and it aims at providing the washing | cleaning apparatus in which the mixture of water vapor | steam and air is hard to fly.

  In the first aspect of the present invention, the water vapor generating unit that supplies water vapor, the gas supply unit that supplies air, and the water vapor mixed with the supplied water vapor and the supplied air are mixed. A mixing unit for generating, a nozzle unit for injecting water vapor mixed with the generated air, and the nozzle unit provided on a side for injecting water vapor mixed with the generated air, and the generated An applicator section having an opening for defining a range in which water vapor mixed with air is sprayed on an object to be cleaned is provided.

  Moreover, you may have the nozzle control part which controls the position of the said nozzle part so that a movement is possible. Moreover, it may be provided between the water vapor generating part and the nozzle part, and may have an opening / closing part for intermittently injecting water vapor mixed with the generated air from the nozzle part. . Moreover, the said applicator part may have a some hole in the side surface. Moreover, it may be provided between the said steam generation part and the said mixing part, and you may have a regulator which adjusts the pressure of the said supplied steam.

  According to the present invention, in the cleaning device, there is an effect that a mixture of water vapor and air is hardly scattered.

The structure of the washing | cleaning apparatus which concerns on this embodiment is shown. The structure near a nozzle control part is shown. The configuration of the experimental apparatus is shown. The result of washing wood chips is shown. The washing results of pathogenic bacteria are shown. The washing | cleaning result of the oil-based ink from a hairless rat skin is shown. The measurement result of the thermography of the skin surface in the washing | cleaning site | part of a hairless rat skin is shown. The measurement result of the blood flow volume of the skin surface in the washing | cleaning site | part of a hairless rat skin is shown. The modification of the structure of a nozzle control part vicinity is shown. The structure by which the temperature sensor is arrange | positioned in the nozzle part vicinity is shown. Experimental results are shown.

<This embodiment>
FIG. 1 is a diagram illustrating a configuration of a cleaning apparatus 1 according to the present embodiment. FIG. 2 is a diagram illustrating a configuration in the vicinity of the nozzle control unit 16. FIG. 3 is a diagram illustrating a configuration of the experimental apparatus 100. FIG. 4 is a diagram illustrating a result of cleaning a piece of wood. FIG. 5 is a diagram showing the results of cleaning pathogenic bacteria. FIG. 6 is a diagram showing a result of cleaning oil-based ink from hairless rat skin. FIG. 7 is a diagram showing a thermographic measurement result of the skin surface at the washing site of the hairless rat skin. FIG. 8 is a diagram showing the measurement result of blood flow on the skin surface at the site of washing hairless rat skin. FIG. 9 is a diagram illustrating a modification of the configuration in the vicinity of the nozzle control unit 16. FIG. 10 is a diagram illustrating a configuration in which the temperature sensor U is disposed in the vicinity of the nozzle portion 14. FIG. 11 is a diagram showing experimental results.

[Outline of cleaning apparatus 1]
The cleaning device 1 is a device that cleans the surface of the cleaning object R to which the object to be peeled T adheres. The cleaning object R is a human body, for example. Further, the object to be peeled T is, for example, a waste product caused by metabolism or a contaminant in which bacteria attached to the waste product are propagated. The cleaning device 1 is used, for example, to clean the peritoneal dialysis catheter outlet in the human body. Peritoneal dialysis catheter outlets are contaminated or accumulated waste products due to leakage of dialysate and body fluids. It has been pointed out that there is a possibility that various bacteria may propagate due to this contamination or accumulation of waste products and cause peritonitis or infectious diseases, which is the biggest problem of peritoneal dialysis assuming home medical care. Generally, contamination is purified with a disinfectant, but the skin is weakened by the disinfectant, and rashes and the like become commonplace. Therefore, a cleaning method that does not use a disinfectant is expected.

For example, a certain degree of purification can be secured by washing the outlet portion of the peritoneal dialysis catheter with soap and washing it with a shower, but the following problems arise.
1) The fact that soap, which is a chemical substance, remains on the catheter outlet and the surrounding skin leads to deterioration of the skin and facilitates the propagation of germs.
2) Hardened keratin cannot be removed by rubbing lightly with soap.
3) There is a risk that an abnormal force is applied to the catheter by mistake.
4) In order to prevent infection, it is desired to wash several times a day, but each time, for example, it is necessary to go to a bathroom, which increases the risk for the elderly.

Since the above problems occur, the following cleaning method is desired.
1) It is desirable to eliminate chemical substances as much as possible.
2) The hardened keratin can be removed by wetting.
3) Non-contact cleaning is desirable.
4) A simple cleaning method that can be used without a bathroom is desirable.
The cleaning device 1 is a device that can cope with the above-described problems when cleaning the cleaning object R.

[Configuration of Cleaning Device 1]
The cleaning apparatus 1 includes a water vapor generation unit 11, a gas supply unit 12, a mixing unit 13, a nozzle unit 14, an applicator unit 15, a nozzle control unit 16, an opening / closing unit 17, a regulator 18, a pipe 21, a pipe 22, and a pipe 23. Have.

  The water vapor generation unit 11 generates and supplies water vapor at a predetermined temperature. The water vapor generation unit 11 generates, for example, water vapor at 120 ° C. to 130 ° C. The gas supply unit 12 is a compressor, for example, and generates and supplies compressed air. The gas supply unit 12 supplies air at, for example, 10 to 20 L / min.

  The mixing unit 13 mixes the supplied water vapor with the supplied air to generate water vapor mixed with air. The mixing unit 13 is connected to the water vapor generating unit 11 through a pipe 21. The mixing unit 13 is connected to the gas supply unit 12 through a pipe 22.

  The nozzle unit 14 injects water vapor mixed with the air generated by the mixing unit 13. The nozzle portion 14 has a function of ejecting fluid flowing inside at high speed by reducing the cross-sectional area of the flow path. The nozzle unit 14 is connected to the mixing unit 13 by a pipe 23.

  The water vapor supplied from the water vapor generating part 11 and flowing through the pipe 21 and the air supplied from the gas supply part 12 and flowing through the pipe 22 are mixed in the mixing part 13 and become water vapor mixed with air, and the water vapor mixed with air is It flows through the pipe 23 and is injected from the nozzle part 14.

  In this way, the cleaning apparatus 1 can reduce the temperature of the water vapor by mixing air with the water vapor. Moreover, the washing | cleaning apparatus 1 can adjust the ratio of water vapor | steam and air by mixing air with water vapor | steam. Therefore, the cleaning apparatus 1 can generate water vapor mixed with air having a temperature suitable for cleaning the cleaning object R.

  When the cleaning device 1 cleans the human body with the cleaning device 1, the temperature of water vapor mixed with the air jetted from the nozzle unit 14 is, for example, 42 ° C. to 46 ° C. at the tip of the nozzle unit 14. Moreover, the temperature of the water vapor mixed with the air jetted from the nozzle unit 14 is, for example, 33 ° C. to 43 ° C. on the skin surface, and is realized by adjusting the distance between the nozzle unit 14 and the skin. The interval between the nozzle portion 14 and the skin is preferably 145 mm to 152 mm, for example, when the vapor pressure is 0.065 MPa and the air flow rate is 11.2 L / min, as shown in the experimental results described later. Moreover, the time which injects from the nozzle part 14 is 2 minutes-3 minutes, for example.

  The applicator unit 15 has a function of preventing the water vapor mixed with the air jetted from the nozzle unit 14 from being scattered and facilitating the removal of the object to be peeled T by steaming the cleaning object R. The applicator unit 15 is provided on the side where the nozzle unit 14 ejects water vapor mixed with the air generated by the mixing unit 13. Specifically, the applicator unit 15 is provided so as to be positioned between the nozzle unit 14 and the cleaning target R when the cleaning target R is cleaned by the cleaning device 1.

  The applicator portion 15 has, for example, a cylindrical shape or a conical shape, but the shape of the applicator portion 15 is not limited to this. The applicator unit 15 has an attachment port 151, an opening 152, and a plurality of holes 153. The attachment port 151 is an opening to which the nozzle portion 14 is attached. The opening 152 is an opening for demarcating a range where water vapor mixed with the air generated in the mixing unit 13 is sprayed on the cleaning target R. The opening 152 is an opening that is directed to the cleaning portion of the cleaning target R when the cleaning target R is cleaned by the cleaning apparatus 1. The attachment port 151 is formed in the applicator unit 15 at a position facing the opening 152, for example.

  The plurality of holes 153 are formed in the side surface of the applicator unit 15. The plurality of holes 153 have a function of a vent hole, and have a function of discharging excess water vapor to the outside of the applicator unit 15 and preventing the water vapor from being liquefied inside the applicator unit 15. Further, the plurality of holes 153 prevent an increase in pressure inside the applicator portion 15 and restricts an increase in temperature inside the applicator portion 15. The number of the plurality of holes 153 and the position where the plurality of holes 153 are formed are arbitrary.

  The nozzle control unit 16 has a function of controlling the position of the nozzle unit 14 to be movable. The nozzle control unit 16 is provided above the attachment port 151 formed in the applicator unit 15. The nozzle control unit 16 has a function that allows the nozzle unit 14 to move in various directions such as horizontal, vertical, rotational, forward, or backward. As shown in FIG. 2, the nozzle control unit 16 includes a case 161, a bearing 162, a motor 163, a worm gear 164, a rotating plate 165, and a slide plate 166.

  The case 161 has a substantially rectangular parallelepiped shape, for example, and houses the applicator portion 15 inside. The case 161 has the applicator 15 fixed inside so that the opening 152 of the applicator 15 faces the same direction as the opening 1611 formed in the case 161. The case 161 has a plurality of openings 1612 formed on the side surface of the case 161. Furthermore, an opening is formed in the case 161 above the attachment port 151 of the applicator unit 15. The bearing 162 is a bearing for the rotating shaft 1651 provided at the center of the rotating plate 165. The bearing 162 is fixed so as to be located outside the case 161 and above the rotating plate 165. The motor 163 is a drive source for controlling the nozzle unit 14 to be movable.

  The worm gear 164 is connected to the motor 163. The worm gear 164 rotates when the motor 163 is driven to rotate. The rotating plate 165 is positioned such that a plurality of teeth formed on the outer peripheral surface of the rotating plate 165 mesh with teeth formed on the worm gear 164. The rotating plate 165 has a rotating shaft 1651 at the center of the rotating plate 165, and rotates around the rotating shaft 1651 as the worm gear 164 rotates. The rotating shaft 1651 has, for example, a cylindrical shape, and extends perpendicularly to the rotating plate 165 at the center of the rotating plate 165.

  The pin 1652 is a member for connecting the slide plate 166 to the rotating plate 165. As will be described later, the slide plate 166 slides along the case 161 when the rotary plate 165 rotates. The pin 1652 has a cylindrical shape, for example, and extends perpendicularly to the rotating plate 165 and the slide plate 166. The pin 1652 passes through a hole formed in the rotating plate 165 and is fixed near the outer edge of the rotating plate 165, and the end portion on the case 161 side in the longitudinal direction of the pin 1652 is formed on the slide plate 166. Is inserted into the groove 1662.

  The groove 1662 is formed on the surface of the slide plate 166 such that the longitudinal direction of the groove 1662 is perpendicular to the direction in which the slide plate 166 slides. The pin 1652 moves inside the groove 1662 by rotating the rotating plate 165 while the end portion on the case 161 side in the longitudinal direction of the pin 1652 is located inside the groove 1662.

  The slide plate 166 inserts bolts into the plurality of long holes formed in the slide plate 166 and the plurality of holes formed in the upper surface of the case 161, and tightens the nut to the inserted bolts. The upper surface of the case 161 is supported in a slidable state. The mixing unit 13 is fixed to the slide plate 166. The slide plate 166 has an opening 1661 at a position where the slide plate 166 and the mixing unit 13 are joined. The nozzle portion 14 passes through the opening 1661 formed in the slide plate 166, the opening formed above the attachment port 151 of the applicator unit 15 in the case 161, and the attachment port 151 of the applicator unit 15. Located.

  In the cleaning apparatus 1, the worm gear 164 and the rotating plate 165 rotate when the motor 163 is driven to rotate, and the slide plate 166 slides back and forth along the upper surface of the case 161. In the cleaning device 1, the nozzle portion 14 moves as the slide plate 166 slides by the rotational drive of the motor 163.

  Since the cleaning apparatus 1 includes the nozzle control unit 16 that enables the position of the nozzle unit 14 to move as described above, the water vapor mixed with the air ejected from the nozzle unit 14 can be directed in various directions. Therefore, the cleaning apparatus 1 can clean the surface of the cleaning target R all over.

  The opening / closing part 17 is provided between the water vapor generating part 11 and the nozzle part 14 and has a function of intermittently injecting water vapor mixed with the generated air from the nozzle part 14. The opening / closing part 17 is, for example, an on / off valve. Specifically, the opening / closing part 17 is provided in the pipe 23 that connects the mixing part 13 and the nozzle part 14, but the position of the opening / closing part 17 is not limited to this position. The opening / closing part 17 is more preferably provided, for example, in a pipe 21 that connects the water vapor generating part 11 and the mixing part 13.

  The regulator 18 has a function of adjusting the pressure of water vapor supplied from the water vapor generating unit 11. Specifically, the regulator 18 reduces the pressure of water vapor supplied from the water vapor generating unit 11. The regulator 18 is provided between the water vapor generating unit 11 and the mixing unit 13. Since the cleaning device 1 includes the regulator 18, the pressure inside the applicator unit 15 can be adjusted, and the amount of air to be mixed can be reduced.

  The cleaning apparatus 1 includes an opening / closing unit 17 for intermittently ejecting water vapor mixed with the air generated in the mixing unit 13 from the nozzle unit 14, thereby intermittently with respect to the cleaning portion of the cleaning target R. Water vapor mixed with the air generated in the mixing unit 13 can be applied. Therefore, since the cleaning apparatus 1 can apply the pressure change due to the injection pressure to the cleaning portion of the cleaning target R a plurality of times, the cleaning apparatus 1 promotes the peeling of the target T from the surface of the cleaning target R. Can do.

  In the cleaning device 1, the nozzle unit 14 is provided on the side for injecting water vapor mixed with the air generated in the mixing unit 13, and the water vapor mixed with the air generated in the mixing unit 13 is applied to the cleaning target R. It has the applicator part 15 in which the opening part 152 for defining the range to be sprayed is formed. Therefore, when the cleaning apparatus 1 cleans the cleaning target R, the cleaning apparatus 1 can prevent the water vapor and water droplets mixed with the air jetted from the nozzle unit 14 from being scattered.

  Moreover, the cleaning apparatus 1 has the applicator unit 15, so that the water vapor mixed with the air jetted from the nozzle unit 14 can be confined inside the applicator unit 15 and the surface of the cleaning object R can be steamed. Therefore, the cleaning apparatus 1 can easily peel off the object to be peeled T from the surface of the cleaning object R by steaming the surface of the cleaning part of the cleaning object R. The cleaning apparatus 1 can clean, for example, a portion 2 cm away from the top of the surface unevenness of the cleaning object R.

[Experimental apparatus and experimental method]
Next, an experiment will be described in which the target S is cleaned using the experimental apparatus 100 by spraying vapor mixed with air from the nozzle 103 without using an applicator.
FIG. 3 is a diagram illustrating a configuration of the experimental apparatus 100. The experimental apparatus 100 includes a steam generator 101, an air cylinder 102, and a nozzle 103. The steam generator 101 generates and supplies steam. The air cylinder 102 supplies compressed air. The nozzle 103 injects steam mixed with the air generated in the nozzle 103. The nozzle 103 has a function of ejecting fluid flowing inside at a high speed by reducing the cross-sectional area of the flow path.

In the experiment, the low-pressure clean steam supplied from the steam generator 101 was mixed with the compressed air supplied from the air cylinder 102 in the nozzle 103. Then, the vapor mixed with air is expanded to about 1.2 cm ² of the target S (wood pieces, gauze, or rat skin) 5-10 cm away from the nozzle 103 at a pressure of 0.25 MPa or less at 0.34 m / Injected at a speed of s or more. The temperature of the sprayed surface is 42 ° C. to 46 ° C., and the amount of water sprayed is about 50 mL / min. The experimental apparatus 100 uses no chemicals or detergents.

  The average diameter of the micromist generated by the experimental apparatus 100 was examined using a particle image velocimeter.

[Washing method of wood chips and gauze]
The ability of the experimental apparatus 100 to remove fluorescent lotion from a square piece of wood (40 x 40 x 5 mm) is compared with the results of scrubbing with tap water and soap and ultrasonic cleaning in tap water did. The wood pieces were photographed under an ultraviolet lamp before and after washing. To check for pathogen washing, the water was filtered and mixed with Dulbecco's Modified Eagle Solution (DMEM) (ratio 1: 4 (vol / vol)), pieces of wood (10 × 10 × 2 mm) and gauze ( 10 × 10 × 1 mm) and cultured at 37 ° C. for 24 hours in the absence of antibiotics or serum.

  After washing wood chips and gauze in tap water (10 mL) using Vortex, use experimental apparatus 100 for 2 minutes to reduce CF (coliforms) and TC (total viable counts) It was compared with the result of ultrasonic cleaning for 10 minutes in tap water (50 mL) and the result of scrubbing only in tap water (10 mL).

  After application of the experimental apparatus 100 and additional washing of tap water (10 mL), the wood pieces and gauze were vigorously stirred with 2 mL of pure water for 2 minutes. Thereafter, 1 mL, 1/100, and 1/1000 diluted at 25 ° C. were slowly poured into a dry medium and TC for culturing 1 mL of a CF-containing solution. These culture dishes were cultured for 24 hours in an incubator. And after culture | cultivation, the colony in each dish was counted.

[Cleaning method for hairless rat skin]
Male hairless rats (300-350 g) were used in the experiments. Immediately prior to the experiment, the rats were anesthetized with intraperitoneal administration of pentobarbital (64.8 mg / kg). The ability of the experimental apparatus 100 to remove the oil-based ink applied to the hairless rat's back was compared with the effect of scrubbing with tap water and scrubbing with tap water and soap. Rats were photographed before and after washing to evaluate the effect of each method.

[Rat skin thermography and blood flow]
The thermography of the skin surface of hairless rats was performed using a thermographic camera before washing and for 2 minutes, 0.5 minutes, 2 minutes, 3.5 minutes, 5 minutes, 6.5 minutes, 8 minutes, and 10 minutes. Results were recorded after minutes. The skin as a control was warmed with cotton gauze (2 × 2 cm) in hot water (45-50 ° C.). The blood flow in the skin of hairless rats is washed for 2 minutes before and 2 minutes with a 2D laser Doppler blood flow meter and image processing software, then 1 minute, 6 minutes, 11 minutes, 16 minutes, 21 minutes, 26 minutes, 31 minutes. And after 36 minutes data was recorded. The skin surface as a control was warmed with cotton gauze (2 × 2 cm) in hot water (45-50 ° C.) and data was recorded.

[Experimental result]
-Wood piece washing | cleaning method FIG. 4: is a figure which shows the washing | cleaning result of a piece of wood.
Washing with the experimental apparatus 100 effectively removed the fluorescent lotion from the piece of wood (40 × 40 × 5 mm) rather than rubbing with tap water and soap and ultrasonic cleaning with tap water. Since the experimental apparatus 100 can clean an area of about 4 cm ² , four parts of the surface of the piece of wood were cleaned by moving the jet nozzle. Almost all of the fluorescence lotions in each part were removed by injection (60 seconds in total) by the experimental apparatus 100 for 15 seconds per part. Rubbing with tap water and soap for 60 seconds showed an intermediate cleaning effect. Ultrasonic cleaning with tap water had little effect in 60 seconds and took 15 minutes to remove all fluorescent lotions.

-Effect which removes pathogenic bacteria from wood chip and gauze FIG. 5: is a figure which shows the washing | cleaning result of pathogenic bacteria.
The water in the pond filtered through a paper filter (pH 6.2) showed 3220 CF and 2360 TC per mL. After culturing pond water in DMEM containing wood chips (10 × 10 × 2 mm) and gauze (10 × 10 × 1 mm) at 37 ° C. for 24 hours without using antibiotics or serum, The gauze contained 3 × 10 ⁷ CF and 2 × 10 ⁷ TC in 1 mL, 2 × 10 ⁷ CF and 1.5 × 10 ⁷ TC.

As shown in FIG. 5, the cleaning by the experimental apparatus 100 reduced the numbers of CF and TC of the wood pieces and the gauze to 2-5 × 10 ³ and 1-3 × 10 ² . In ultrasonic cleaning using tap water and cleaning using tap water, the number of CFs and the number of TCs were reduced to 1-3 × 10 ⁵ and 5-9 × 10 ^{5 in} the wood pieces, respectively. In the gauze, ultrasonic cleaning using tap water and cleaning using only tap water reduced the numbers of CF and TC to 1-5 × 10 ⁴ and 5-9 × 10 ⁴ , respectively.

-Cleaning method of hairless rat skin FIG. 6 is a diagram showing a result of cleaning oil-based ink from hairless rat skin.
It was evaluated whether the experimental apparatus 100 can remove oil-based ink on the back of hairless rats safely and effectively without using chemicals and detergents. As shown in FIG. 6, by applying the cleaning by the experimental apparatus 100, a part of the oil-based ink was removed by the cleaning for 20 seconds, and almost completely removed by the cleaning for 60 seconds. In contrast, with tap water alone or tap water / soap scrubbing, a portion of the wash was removed in 60 seconds, and more than 2 minutes was spent to remove it completely. As described above, it was found that the cleaning technique using the experimental apparatus 100 can remove the oil-based ink more effectively than the tap water / soap scrubbing.

FIG. 7 is a diagram showing the measurement results of the thermography of the skin surface at the cleaning site of the hairless rat skin. As shown in FIG. 7, after washing with the experimental apparatus 100 for 2 minutes, the thermography significantly increased the skin temperature at the washing site for at least 10 minutes. On the other hand, the temperature of the washed part of the control heated for 2 minutes with cotton gauze in hot water (45-50 ° C.) cooled after 3.5 minutes.

  FIG. 8 is a diagram showing the measurement result of blood flow on the skin surface at the site of washing hairless rat skin. As shown in FIG. 8, after a 2-minute wash using the experimental device 100, the laser Doppler blood flow meter showed an increase in blood flow at the wash site for 30 minutes before decreasing to baseline. As a control, the portion warmed for 2 minutes with cotton gauze in hot water (45-50 ° C.) decreased to baseline in 10 minutes. Thus, the results of thermography and blood flow measurement showed that the cleaning by the experimental apparatus 100 has a massage effect.

[Discussion]
As shown in the experimental results described above, cleaning techniques using the experimental device 100 have shown that dirt and pathogens are removed from the skin as well as wood chips and other materials without the use of chemicals or detergents. . The pH of the vapor / air mixed micromist and the temperature of the sprayed skin surface used in this experiment were adjusted to about 6.5 and 42-46 ° C.

  The experimental apparatus 100 can remove pathogens and dirt from the surface of wood pieces and gauze more effectively than using ultrasonic cleaning with tap water and scrubbing only with tap water without using chemicals or detergents. (FIGS. 4 and 5). Furthermore, the experimental apparatus 100 removed oil-based ink from the skin of the hairless rat (FIG. 6), and also caused a temporary increase in skin temperature (FIG. 7) and an increase in blood flow (FIG. 8), which showed a massage effect.

  The ideal substance for washing the body is a mildly acidic soap, or detergent (pH 4.5-6.5), which is similar to the normal pH of the skin. Benzoyl peroxide, Sulfur, or resorcinol antibacterials (eg tricarban or triclosan), and alkali-adjusted soap (pH 9.0-10.00) effectively removes S. aureus and Gram-negative bacteria. However, these soaps are irritating to the skin and should not be used daily. Their skin disease is associated with poor hygiene, especially in patients with acne rash or acne, and the use of stimulating soaps exacerbates the condition.

  Various solutions are recommended for wound cleaning, but normal saline is preferred. It is isotonic and does not appear to interfere with the normal healing process. If water is used as a washing solution, it should be at the same temperature as the body temperature. This is because it takes 40 minutes for the wound to return to normal body temperature, and it takes 3 hours to recover the leukocyte activity after washing and wrapping.

  Wound healing can occur at normal core body temperature and body surface temperature above 33 ° C. Wound healing is delayed at temperatures below 33 ° C and above 43 ° C. Maintaining proper wound temperature will help increase blood flow to the wound surface, increase wound tension and increase oxygen pressure, and normal temperature will assist wound regeneration. Proper wound temperature control also prevents rapid growth of bacteria, thereby reducing the risk of infection.

  A healthy skin overcoat is somewhat acidic (pH 4-6.5). The acidic protective film reduces bacterial colonization and maintains humidity in the protective zone of the skin. The pH of the skin cleansing solution affects its acidic protective film. This is because many times washing with alkaline water (pH> 8) may increase the pH of the skin. Furthermore, irritation to living tissue with alkaline water causes pain, and the beneficial substrate is likely to be washed away from the wound area. For these reasons, it is recommended to use washing water having a pH of 4-6.5 at 33-43 ° C. In this experiment, the pH of the vapor / air mixed micromist and the temperature of the sprayed skin surface were adjusted to 6.5 and 43-46 ° C., respectively.

  In summary, a useful cleaning technique was shown that applied the experimental apparatus 100 without the use of chemicals or detergents. Washing with the experimental apparatus 100 effectively removed the fluorescent lotion (FIG. 4) from the wood pieces and the oil-based ink from the hairless rat skin (FIG. 6). Furthermore, the skin temperature temporarily increased (FIG. 7), and the blood flow increased temporarily (FIG. 8). This result suggests a massage effect. The application of the cleaning technique by the experimental apparatus 100 is promising as a method for cleaning small dirt and various bacteria from the skin with a massage effect.

[Modification]
FIG. 9 is a diagram illustrating a modification of the configuration in the vicinity of the nozzle control unit 16.
The nozzle controller 16 a is different from the nozzle controller 16 in that it does not have the slide plate 166 but has a connection plate 167, a fixed plate 168, and a fixed plate 169.

  One end of the connection plate 167 in the longitudinal direction is fixed near the outer peripheral surface of the rotating plate 165, and the other end is fixed to the mixing unit 13. The fixed plate 168 and the fixed plate 169 are fixed to the upper surface of the case 161. The fixed plate 168 and the fixed plate 169 are near the end opposite to the side fixed to the case 161 in the longitudinal direction of the fixed plate 168 and the side fixed to the case 161 in the longitudinal direction of the fixed plate 169. In the vicinity of the end on the opposite side, the mixing portion 13 is swingably supported between the fixed plate 168 and the fixed plate 169. The connection plate 167 swings the mixing portion 13 supported so as to be swingable between the fixed plate 168 and the fixed plate 169 as the rotating plate 165 rotates.

  In the cleaning apparatus having the nozzle control unit 16a, the motor 163 is driven to rotate, the worm gear 164 and the rotating plate 165 are rotated, and the connecting plate 167 is moved, so that the mixing unit 13 is swung. In the cleaning apparatus, the nozzle unit 14 moves when the mixing unit 13 is swung by the rotation driving of the motor 163.

[Experimental result]
As shown in FIG. 10, the vapor temperature at the position of the temperature sensor U was measured by changing the distance between the tip of the nozzle section 14 and the temperature sensor U by changing the position of the nozzle section 14. The temperature sensor U is disposed near the opening 152 inside the applicator unit 15. At this time, the vapor pressure is 0.065 MPa, and the air flow rate is 11.2 L / min.
Table 1 shows the measurement results.

  As shown in FIG. 11, there is a substantially linear relationship between the distance between the nozzle portion 14 and the temperature sensor U and the vapor temperature at the position of the temperature sensor U. As shown in Table 1 and FIG. 6 and no. Since 7 was suitable temperature, if it is 41 degrees C or less, even if it uses for a human body, it will be thought that there is no trouble.

[Effects of the cleaning apparatus 1 according to this embodiment]
The cleaning apparatus 1 according to the present embodiment is configured to mix water vapor generation unit 11 that supplies water vapor, gas supply unit 12 that supplies air, supplied water vapor and supplied air, and mixed with water. And a mixing unit 13 to be generated. Further, the cleaning device 1 is provided on the side of the nozzle portion 14 for injecting water vapor mixed with the generated air and the side of the nozzle portion 14 for injecting water vapor mixed with the generated air, and the generated air And an applicator portion 15 in which an opening 152 for defining a range in which water vapor mixed with is sprayed on the cleaning object R is formed.

  In the cleaning device 1 according to the present embodiment, the nozzle unit 14 is provided on the side that jets the water vapor mixed with the generated air, and the water vapor mixed with the generated air is sprayed on the cleaning object R. And an applicator portion 15 in which an opening 152 for defining a range is formed. Therefore, when the cleaning apparatus 1 cleans the cleaning target R with the cleaning apparatus 1, it is difficult for the water vapor mixed with the air injected from the nozzle portion 14 to scatter. Further, the cleaning device 1 can steam the surface of the cleaning portion of the cleaning target R by confining the water vapor mixed with the air jetted from the nozzle unit 14 inside the applicator unit 15. Therefore, the cleaning apparatus 1 can easily peel off the object to be peeled T from the surface of the cleaning object R by steaming the surface of the cleaning part of the cleaning object R.

  Further, in the cleaning device shown in Patent Document 1, for example, 100 L / min of air is mixed with superheated steam supplied from the steam fluid adjusting unit, whereas in the cleaning device 1, the air is supplied from the gas supply unit 12. Less, for example, 10 to 20 L / min of air is supplied. Therefore, the cleaning apparatus 1 can reduce the size of the compressor that supplies air. As a result, the cleaning device 1 can be a low cost, portable device that can be used at home.

The following can be considered as applications of the cleaning apparatus 1 to other applications.
1. Since it is non-contact cleaning, it is suitable for cleaning pressure ulcers.
2. Since the vapor has a high permeability to the skin, when the vapor mixed with the medicinal component is irradiated, the component can be absorbed more efficiently than the conventional application such as ointment.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment, A various deformation | transformation and change are possible within the range of the summary. is there. For example, the specific embodiments of device distribution / integration are not limited to the above-described embodiments, and all or a part of them may be configured to be functionally or physically distributed / integrated in arbitrary units. Can do. In addition, new embodiments generated by any combination of a plurality of embodiments are also included in the embodiments of the present invention. The effect of the new embodiment produced by the combination has the effect of the original embodiment.

DESCRIPTION OF SYMBOLS 1 ... Cleaning apparatus 11 ... Water vapor generation part 12 ... Gas supply part 13 ... Mixing part 14 ... Nozzle part 15 ... Applicator part 151 ... Mounting port 152 ... Opening Portion 153... Hole 16, 16 a... Nozzle controller 161. Case 1611... Opening portion 1612... Opening portion 162 .. Bearing 163. · Rotating plate 1651 ··· Rotating shaft 1652 ··· Pin 166 ··· Slide plate 1661 ··· Opening portion 1662 ··· Groove 167 ··· Connection plate 168 ··· Fixed plate 169 ··· Fixed plate 17 ... Opening / closing part 18 ... Regulator 21 ... Pipe 22 ... Pipe 23 ... Pipe 100 ... Experimental device 101 ... Steam generator 102 ... Air cylinder 103 ... Nozzle R ... Objects to be cleaned T ... Peeled product S · · · target U · · · Temperature sensor

Claims (5)

A water vapor generating section for supplying water vapor;
A gas supply unit for supplying air;
A mixing unit that mixes the supplied water vapor with the supplied air to generate water mixed with air; and
A nozzle portion for injecting water vapor mixed with the generated air;
The nozzle portion is provided on the side for injecting the water vapor mixed with the generated air, and an opening for defining a range in which the water vapor mixed with the generated air is sprayed on the object to be cleaned An applicator part formed with,
A cleaning apparatus comprising: It has a nozzle control part which controls the position of the nozzle part so that movement is possible,
The cleaning apparatus according to claim 1. It is provided between the water vapor generating part and the nozzle part, and has an opening / closing part for intermittently injecting water vapor mixed with the generated air from the nozzle part,
The cleaning apparatus according to claim 1 or 2. The applicator part has a plurality of holes on a side surface,
The cleaning device according to any one of claims 1 to 3. It is provided between the water vapor generation part and the mixing part, and has a regulator for adjusting the pressure of the supplied water vapor,
The cleaning device according to any one of claims 1 to 4.