KR20200105425A - Medical Sterilization Disinfecting Water Supply Apparatus and Sterilizer for Medical Appliances using the same - Google Patents

Abstract

The present invention relates to a medical sterilized disinfecting water supply apparatus using nanobubble water to supply sterilized disinfecting water used for washing and disinfecting a treatment portion during dental treatment and effectively wash and disinfect the inside and outside of medical appliances, such as a handpiece contaminated by a patient′s saliva, blood, tooth fragments, and powder and a disease inducer, such as various kinds of pathogenic microorganisms, and the like. The present invention also relates to a medical appliance sterilization apparatus using the medical sterilized disinfecting water supply apparatus. To this end, according to the present invention, the medical sterilized disinfecting water supply apparatus using nanobubble water comprises: a liquid supply member; a gas supply member including an ozone generator; and a nanobubble generator using the liquid supplied from the liquid supply member and the gas supplied from the gas supply member to generate nanobubble water including bubbles of nano size, including an inlet from which the liquid is supplied from the liquid supply member and an outlet for discharging the nanobubble water, and disposed to place the inlet on an upper part and place the outlet to a lower part.

Description

Medical Sterilization Disinfecting Water Supply Apparatus and Sterilizer for Medical Appliances using the same}

The present invention relates to a medical sterilizing water supply device and medical device sterilization device using nano-bubble water.

A dental handpiece is a dental medical device that polishes and removes infected or damaged teeth, and is contaminated with saliva, blood, tooth chips and powder, as well as various pathogenic microorganisms and viruses, etc., in the mouth of a patient during use. In general, contaminants of handpieces such as saliva and blood may contain various disease-causing factors such as AIDS or hepatitis, and thus contaminated handpieces may cause fatal transmission to doctors and nurses who use them.

A conventional method of washing/disinfecting medical devices such as used handpieces has been to boil the medical devices in boiling water or use a high-temperature and high-pressure autoclave. However, such a conventional method has a fatal disadvantage that it takes too much time to clean/sterilize one medical device. Considering the large number of patients who visit the dentist, the patient's waiting time is prolonged, which inevitably degrades the quality of medical services experienced by the patient, and sufficient time cleaning/disinfection for medical devices is performed for prompt treatment. Because it may not be possible, transmission of various disease-causing factors may result. In addition, in the case of the handpiece, the above-described problem is remarkable because the frequency of use is high among dental medical devices.

In addition, the conventional washing/disinfection method using high temperature and high pressure can damage medical devices such as handpieces and deteriorate their function. Even if various disease-causing factors are inactivated through high temperature and high pressure, other patients remain inside the handpiece and It can be transferred to the pathogenic microorganisms to help proliferate, so there is an urgent need for an effective cleaning/disinfection method for medical devices such as handpieces.

In general, after surgery or treatment, blood or living tissue is attached to various medical devices such as medical devices, surgical scalpels, and endoscopes. There is a high possibility that infectious pathogens are lurking among these attachments.

On the other hand, ozone has sterilizing power that can sterilize harmful viruses and bacteria in a short time in seconds, but there is no risk or side effects of generating resistant bacteria like antibiotics, and because it is decomposed and converted into oxygen, it has excellent safety. Research for use is actively underway.

Republic of Korea Patent Publication No. 10-0852465 (Name of the invention: Method for generating monodisperse bubbles, 2007. 01. 04. Publication) Republic of Korea Patent Publication No. 10-1726670 (Name of the invention: Dental sterilization and disinfection water supply device and method, 2017. 04. 26. Announcement)

The present invention was invented in view of the above points, and a medical sterilizing water supply device for supplying sterilizing water used for cleaning and disinfecting a treatment area during dental treatment, and saliva, blood, tooth chips and powder of a patient, Medical sterilization water using nanobubble water that can effectively clean and sterilize medical devices such as contaminated handpieces when cleaning and sterilizing the inside and outside of medical devices such as handpieces contaminated with disease inducing factors such as various pathogenic microorganisms An object thereof is to provide a supply device and a medical device sterilization device.

According to a preferred embodiment for achieving the object of the present invention described above, the medical sterilization water supply device using nanobubble water according to the present invention includes a liquid supply member, a gas supply member including an ozone generator, and the liquid supply member. Using the supplied liquid and the gas supplied from the gas supply member, a nano-bubble water containing nano-sized bubbles is generated, and a supply port through which liquid is supplied from the liquid supply member and an outlet through which the nano-bubble water is discharged are provided. It includes, and may include a nanobubble generator disposed such that the supply port is located at the top and the discharge port is located at the bottom.

The nanobubble generator may include a generator for generating nano-sized bubbles, and the generator may include a plurality of particles for generating nano-sized bubbles by decomposing the gas mixed in the liquid while passing therebetween.

The average particle diameter of the particles is 0.1 to 3.0 mm.

Both ends are respectively connected to the supply port of the liquid supply member and the nanobubble generator, further comprising a first pipe for providing a passage for moving the liquid supplied from the liquid supply member to the nanobubble generator, the gas supply The member may include a first part connected to the first pipe and one end to increase a flow rate of the fluid supplied from the first pipe, and a second part connected to the other end of the first part and one end.

The gas supply member includes a nipple structure surrounding at least a portion of an outer surface of the first part and at least a part of an outer surface of the second part, and a supply structure providing a passage for supplying external air to the outer surface of the second part. It may contain more.

The gas supplied from the supply structure of the nipple part is characterized in that it moves between the outer surface of the second part and the inner surface of the nipple structure.

The gas supply member may further include a third portion disposed such that at least a portion of the inner surface surrounds the outer surface of the other end of the second portion, and reduces a pressure of the fluid supplied from the second portion.

The gas supply member may further include a third portion disposed such that at least a portion of the inner surface surrounds the outer surface of the other end of the second portion, and reduces a pressure of the fluid supplied from the second portion.

The gas supplied from the supply structure of the nipple part is characterized in that it moves along between the outer surface of the second part and the inner surface of the nipple structure and is supplied as a fluid flowing along the inner surface of the third part.

Both ends may be connected to the liquid supply member and the supply port of the nanobubble generator, respectively, and a first pipe for providing a passage for moving the liquid supplied from the liquid supply member to the nanobubble generator may be further included.

The gas supply member is connected to the first pipe to provide a passage through which the fluid supplied from the first pipe flows, and a nipple portion including a supply structure connected to the outside, and one end is on the inner surface of the supply structure. It may include an air inlet portion disposed to communicate with the outside, and the other end is disposed inside the passage provided by the nipple structure to provide a passage for supplying external air to the fluid flowing along the passage.

In addition, the medical device sterilization apparatus using nanobubble water according to the present invention uses a liquid supply member, a gas supply member including an ozone generator, a liquid supplied from the liquid supply member, and a gas supplied from the gas supply member. It may include a nanobubble generator for generating nanobubble water containing air bubbles of a size, a supply control member including a valve for controlling the supply of sterilized and disinfectant water, and a drying member for introducing dry air.

According to the medical sterilization water supply device and medical device sterilization device using nanobubble water according to the present invention, it is possible to generate nanobubbles containing ozone to perform cleaning and sterilization at the same time, and to remove harmful viruses and bacteria in seconds. Since it can be killed in time, it can improve gum disease when treating periodontal disease and effectively sterilize medical devices within a short time.

In addition, since ozone is contained in the nanobubbles, there is an advantage that waste ozone does not need to be treated during sterilization using ozone.

1 shows a medical device sterilization water supply device according to an embodiment of the present invention.
2 is a view showing a medical device sterilizing water supply device according to another embodiment of the present invention.
3 shows a nanobubble generator according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view taken along AA′ of FIG. 3.
5 shows a gas supply member according to an embodiment of the present invention.
6 is a cross-sectional view taken along BB′ of FIG. 5.
Figure 7 shows the flow of liquid and gas in Figure 6.
8 shows a gas supply member according to another embodiment of the present invention.
9 is a cross-sectional view taken along line GG' of FIG. 8.
10 shows the content of the average particle diameter of nanobubbles generated when particles having an average particle diameter of 0.1 mm are applied to the nanobubble generator.
11 shows the content of the average particle diameter of the nanobubbles generated when particles having an average particle diameter of 0.3 mm are applied to the nanobubble generator.
12 shows the content of the average particle diameter of nanobubbles generated when particles having an average particle diameter of 0.8 mm are applied to the nanobubble generator.
13 is It shows the content of the average particle diameter of the nanobubbles generated when particles having an average particle diameter of 0.1 mm are applied to a horizontally arranged nanobubble generator.
14 is a graph measuring changes in ozone concentration over time of sterilized and disinfected water according to Examples and Comparative Examples.

Hereinafter, an embodiment of a medical sterilizing water supply device and a medical device sterilization device using nanobubble water according to the present invention will be described with reference to the accompanying drawings. At this time, the present invention is not limited or limited by the examples. In addition, in describing the present invention, detailed descriptions of known functions or configurations may be omitted to clarify the gist of the present invention.

The medical sterilization water supply device according to an embodiment of the present invention is a sterilization water supply device that generates water including nano bubbles trapped in nano-sized bubbles, and has excellent cleaning and sterilization effects, and scaling for oral cleaning, It can be used to supply sterilized disinfectant water during oral treatment including implants or tooth extraction, and can be used for long-term cleaning during surgery.

As an example, if nanobubble water containing ozone is sprayed from the medical sterilization water supply device according to an embodiment of the present invention and cleaned with an ultrasonic scaler, it is possible to simultaneously remove plaque and bacteria while sterilizing periodontal germs in the periodontal pocket where the toothbrush does not reach. Because it can improve gum disease. In addition, the nanobubble water containing ozone can be used for oral washing after brushing at home, thereby sterilizing periodontal germs and preventing proliferation of periodontal germs.

1 illustrates a medical device sterilization water supply apparatus 100 according to an embodiment of the present invention. Referring to FIG. 1, a medical device sterilization water supply device 100 according to an embodiment of the present invention includes a liquid supply member 130, a gas supply member 120 including an ozone generator, and the liquid supply member 130. ) And a nano-bubble generator 110 for generating nano-bubble water containing nano-sized bubbles by using the liquid supplied from the gas supply member 120 and the gas supplied from the gas supply member 120.

The nanobubble generator 110 functions to include nano-sized bubbles (bubbles) in the liquid supplied from the liquid supply member 130. The liquid supplied to the nanobubble generator 110 contains gas including ozone supplied from the gas supply member 120, and the liquid including ozone passes through the nanobubble generator 110, thereby A nano-sized bubble confining ozone is formed on the bed.

3 is a view showing a nano bubble generator 110 according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along AA′ of FIG. 3. 3 and 4, the nanobubble generator 110 according to an embodiment of the present invention includes a generator 112 for generating nano-sized bubbles, and the generator 112 is mixed with a liquid. The gas may include a plurality of particles 114 that are decomposed while passing therebetween to generate nano-sized bubbles. The pores formed between the plurality of particles become a passage through which fluid and gas pass, and vibration occurs between the particles according to the flow of the fluid, and the gas mixed in the fluid regularly repeats contraction and expansion, resulting in nano-sized bubbles It can perform the function that makes it possible.

The generator 112 may include a supply port 111 through which a liquid is introduced at an upper portion, and an outlet 113 through which a liquid including nanobubbles is discharged, and the supply port 111 and A space for supporting the plurality of particles 114 may be included between the discharge ports 113. In addition, in order to prevent the plurality of particles 114 from moving to the supply port 111 and the discharge port 113, the space for supporting the plurality of particles 114 and between the supply port 111 and a plurality of particles Screen members 115a and 115b may be further included between the space supporting the 114 and the discharge port 113.

The screen members 115a and 115b may prevent the particles 114 from being lost and may perform a function of stably disposing the particles 114. In addition, the screen members 115a and 115b may perform a filtering function to block foreign substances from being introduced or discharged. In addition, since the screen members 115a and 115b contain fine pores, the size of the nanobubbles generated by the plurality of particles 114 can be made smaller, or a function of preventing bubbles larger than a certain size from being discharged. Can be done. The screen members 115a and 115b may have elasticity, and may press the plurality of particles 114 from at least one of the upper and lower portions. Through this, since the particles 114 can be more stably disposed, the functions described above can be performed more efficiently. The screen members 115a and 115b may be sponge, nonwoven fabric, fiber, glass wool, ceramic filter, metal filter, or the like. The screen members 115a and 115b may be disposed on only one of the supply port 111 and the discharge port 113, and may be disposed to surround a plurality of particles 114 as necessary. The position, thickness, and number of the screen members 115a and 115b are not particularly limited.

The average particle diameter of the particles 114 may be 0.1 to 3.0 mm, preferably 0.1 to 1.5 mm, more preferably 0.1 to 0.8 mm, more preferably 0.1 to 0.3 mm. When the average size of the particles 114 is less than 0.1 mm, a high load is generated when the liquid passes between the particles 114, and the flow velocity may be significantly reduced. In addition, when the average size of the particles 114 exceeds 1.5 mm, the space between the particles 114 is enlarged, so that the size (particle diameter) of the formed bubbles exceeds 1000 nm, reducing the efficiency of nanobubble formation. do. When the size of the particles 114 is 0.8 mm or less, the size (particle diameter) of 95% or more of the formed nanobubbles is maintained at 500 nm or less, so that the nanobubbles can be more stably formed. In addition, when the size of the particles 114 is 0.3 mm or less, 99% or more of the formed nanobubbles have a size (particle diameter) of 500 nm or less, so that the nanobubbles can be more stably formed.

The shape of the particles 114 is not particularly limited, but may have a spherical or elliptical bead shape in order to prevent breakage of the particles 114 and uniformly control the spacing between the particles 114. The material of the particles 114 is not particularly limited, but may be a material having chemical resistance to various liquids and durability against collision. For example, the material of the particles 114 may be inorganic materials such as ceramics and metals, and organic materials such as PET, PS, PP, HDPE, LDPE, and PVP.

Referring to FIG. 1, the nanobubble generator 110 may be disposed vertically based on the flow direction of the liquid, and the liquid may be disposed to flow from the top to the bottom of the nanobubble generator 110. have. More specifically, the nanobubble generator 110 includes a supply port 111 for supplying liquid from the liquid supply member 130 and an outlet 113 for discharging the nanobubble water, and the nanobubble generator ( 110 is arranged such that the supply port 111 is located at the top and the discharge port 113 is located at the bottom, and the liquid supplied from the liquid supply member 130 goes from the top to the bottom of the nanobubble generator 110 Can flow. The nanobubble generator 110 includes a plurality of particles 114 therein, and a liquid passes between the particles 114 to generate nanobubbles. Due to these technical features, it may be important to stably arrange the particles 114 inside the nanobubble generator 110 so that the gap between the particles 114 is kept constant in order to constantly control the size of the nanobubbles. have.

The nanobubble generator 110 according to the embodiment of the present invention is arranged vertically with respect to the flow direction of the liquid so that the direction of the gravity applied to the particles 114 and the flow direction of the liquid coincide with each other. The size can be controlled constant. In addition, since the particles 114 receive pressure in the same direction by gravity and the flow of the liquid, the gap between the particles 114 becomes dense, and thus the size of the generated nanobubbles can be controlled to be smaller.

The liquid supply member 130 serves to supply liquid to the nanobubble generator 110. The liquid supply member 130 is not particularly limited as long as it is used to transfer liquid. The liquid supply member 130 may include any one of a reciprocating pump, a rotary (rotation) pump, a centrifugal pump, an axial pump, and a friction pump to transfer liquid. The liquid supply member 130 may further include a liquid supply source 150 for storing the liquid, and may further include a valve for controlling the transfer of the liquid and a flow meter for measuring the transfer amount of the liquid. The liquid supplied by the liquid supply member 130 is not particularly limited. For example, for application to hydroponic cultivation, it may be raw water containing a culture medium in which nutrients necessary for growing plants are dissolved.

The liquid supply member 130 and the nanobubble generator 110 are connected by a pipe, and a gas supply member 120 may be disposed therebetween. In one embodiment, both ends are connected to the supply port 111 of the liquid supply member 130 and the nanobubble generator 110, respectively, and the liquid supplied from the liquid supply member 130 is transferred to the nanobubble generator ( It may further include a first pipe 140 providing a passage to move to 110. A check valve may be disposed in the first pipe 140 to prevent backflow of liquid.

The arrangement position of the liquid supply member 130 is not particularly limited as long as the fluid from the liquid supply source 150 can be supplied to the nanobubble generator 110.

As shown in FIG. 1, the liquid supply member 130 may be disposed at the front end of the nanobubble generator 110 to supply liquid to the nanobubble generator 110.

In addition, the liquid supply member 130 may be disposed at the rear end of the nanobubble generator 110 to supply liquid to the nanobubble generator 110 as shown in FIG. 2.

The arrangement position of the gas supply member 120 is not particularly limited as long as the gas introduced from the outside can be supplied to the nanobubble generator 110.

5 is a diagram illustrating a gas supply member 120 according to an embodiment of the present invention, FIG. 6 is a cross-sectional view taken along BB′ of FIG. 5, and FIG. 7 is a liquid flow C and a gas flow D ) Is displayed. 5 to 7, the gas supply member 120 has one end connected to the first pipe 140 and increases the flow velocity of the fluid supplied from the first pipe 140. ), and a second part 122 connected to the other end and one end of the first part 121. In addition, the gas supply member 120 has a nipple structure surrounding at least a part of the outer surface of the first part 121 and at least part of the outer surface of the second part 122 and the outer surface of the second part 122 It may further include a nipple portion 124 including a supply structure 125 for providing a passage for supplying external air. Through this, the gas supplied from the supply structure 125 of the nipple part 124 may move and be mixed with the fluid whose flow rate is changed. In addition, by having such a structure, the amount of gas mixed with the liquid can be kept constant, and while the gas passes through the gas supply member 120 and flows into the liquid, it is primarily split to form nanobubbles. It can be efficient to create.

In one example, the gas supplied from the supply structure 125 of the nipple part 124 passes through the supply structure 125 of the nipple part 124 to the outer surface of the second part 122 and the nipple structure. It may be mixed with the liquid after moving to the end of the second part 122 along the inner surfaces of the. The second part 122 may be formed such that an outer surface of the end of the second part 122 is inclined toward the inside of the second part 122 in order to facilitate mixing of the gas supplied from the nipple structure into a liquid. In addition, the other end of the second part 122 may have a nozzle shape to reduce the pressure of the fluid flowing along the inner surface. More specifically, an inner portion of the end of the second portion 122 may be formed to be inclined toward the outside of the second portion 122.

The gas supply member 120 is disposed so that at least a portion of the inner surface surrounds the outer surface of the other end of the second portion 122, and reduces the pressure of the fluid supplied from the second portion 122 It may further include (123). In this case, the gas supplied from the supply structure 125 of the nipple part 124 moves between the outer surface of the second part 122 and the inner surface of the nipple structure to follow the inner surface of the third part 123. It can be supplied as a flowing fluid. Through this, gas including ozone supplied from the supply structure 125 of the nipple part 124 may be stably guided toward the liquid, and the liquid may be prevented from flowing out to the outer surface of the second part 122. The second part 122 and the third part 123 may have a hollow cylindrical shape that penetrates the inside, and the inner diameter of the third part 123 is 0.1 to 3.0 than the outer diameter of the second part 122 mm, preferably 1.6 mm larger. In addition, the shape of the portion of the nipple portion 124 surrounding the second portion 122 may be a hollow cylindrical shape to surround the second portion 122, the inner diameter of which is greater than the outer diameter of the second portion 122 It may be larger than 0.4 to 2.4 mm, preferably 1.7 to 1.8 mm. In this case, the distance (F) between the inner surface of the third portion 123 and the outer surface of the second portion 122 is shorter than the distance (E) between the nipple portion 124 and the outer surface of the second portion 122 Is formed, the gas containing ozone supplied from the supply structure 125 of the nipple portion 124 is stably guided from the nipple portion 124 to the third portion 123, and the fluid is directed toward the nipple portion 124 It can prevent spillage.

The material of the first part 121, the second part 122 and the nipple part 124 is not particularly limited, and may be an alloy or a polymer material having low reactivity in consideration of durability and chemical resistance. The material of the third part 123 is not particularly limited, and may be a polymer material such as Teflon for stable bonding with the second part 122.

8 is a diagram illustrating a gas supply member according to another embodiment of the present invention, and FIG. 9 is a cross-sectional view taken along line GG' of FIG. 8. 8 and 9, the gas supply member includes a nipple structure connected to the first pipe to provide a passage through which the fluid supplied from the first pipe flows, and a nipple unit including a supply structure communicating to the outside ( 124'), and a passage having one end disposed on the inner surface of the supply structure to communicate with the outside, and the other end disposed inside the passage provided by the nipple structure to supply gas containing ozone to the fluid flowing along the passage. It may include an air inlet portion 121' to provide.

The nipple part 124 ′ may have a T shape, and the air inflow part 121 ′ may have an L shape. By having such a structure, an appropriate amount of gas can be mixed into the fluid according to the flow rate and flow rate. In addition, by changing the inner diameter and shape of the other end of the air inlet 121 ′, the amount of gas including ozone mixed with the fluid and the bubble size may be controlled.

The gas supply member 120 according to the embodiment of the present invention includes an ozone generator 160.

The location of the ozone generator 160 is not particularly limited as long as ozone can be supplied to the gas supply structure 125.

Referring to FIG. 1, the ozone generator 160 is located between a gas inlet through which gas is introduced from the outside and a second pipe 141 connecting the gas supply structure 125 so that the gas supplied from the outside is introduced, By generating ozone from the introduced gas, gas including ozone may be discharged to the gas supply structure 125 connected to one end of the second pipe 141.

The ozone generator 160 is for supplying ozone to the nanobubble generator 110 by generating ozone from the gas introduced from the outside. Through this, the medical sterilizing water supply device according to an embodiment of the present invention includes ozone. Can generate nano bubbles.

That is, the gas containing ozone discharged from the gas supply structure 125 is mixed with the liquid supplied from the liquid supply member 130, and the mixed liquid and the gas containing ozone pass through the nanobubble generator 110 Thus, nano-sized bubbles confining ozone in the liquid may be generated.

The ozone generator 160 pre-treats the introduced gas to generate high-purity oxygen, and to improve the efficiency of ozone generation by the combination of oxygen atoms (O) and oxygen molecules (O ₂ ), a pressure swing adsorption device (Pressure Swing Adsorption) , PSA). The pressurized alternating adsorber (PSA) can generate 80-95% high purity oxygen gas by removing nitrogen, carbon dioxide, water vapor, and hydrocarbons from the air under pressure.

Alternatively, the ozone generator 160 may be provided with a separate oxygen tank to receive pure oxygen.

In addition, the ozone generator 160 may include a pump to absorb air introduced from the outside and to discharge the generated ozone to the supply structure 125.

In addition, the ozone generator 160 may include a cooling device to cool heat generated when ozone is generated.

The ozone generator 160 may generate ozone using an electric discharge or a UV lamp. In electric discharge, when an AC voltage is applied between electrodes, an intermittent discharge occurs in the space, and the accelerating electron (e-) by the discharge collides with the oxygen molecule to become an oxygen atom (O), while the oxygen atom (O) thus generated It reacts with oxygen molecules again to ozonize.

The method of generating ozone using the UV lamp is to use a lamp that emits UV with a wavelength of 184.9 nm, and uses the principle that UV is generated when oxygen molecules are irradiated with a wavelength of 184.9 nm. This method is safer than electrolysis and has the advantage of no generation of secondary pollutants such as nitrogen oxides. Oxidation and disinfection reactions by ozone can be divided into two reactions: reaction by ozone itself and by ozone decomposition and generated OH radicals, both of which have high oxidation capacity (ozone: 2.07V, OH radical: 2.80V). Because it has, it is effective in treating most chemical substances including microorganisms and iron. In particular, in the case of microbial disinfection, unlike UV disinfection, which simply inhibits the regrowth of microbes by damaging DNA, ozone has the characteristic of destroying all surface membranes, cell walls, enzymes, DNA, etc. It is particularly effective. When using 05mg/L ozone, it is known that more than 99% to 999% of viruses and most bacteria are inactivated within minutes.

The medical sterilizing water supply device according to another embodiment of the present invention may further include a static mixer to improve mixing of liquid and gas.

The arrangement position of the static mixer is not particularly limited as long as it is possible to mix gas supplied from the liquid supply member 130 and gas including ozone supplied from the gas supply structure 125. As an example, a static mixer may be disposed on a pipe connecting the gas supply member 120 and the nanobubble generator 110.

The liquid including nanobubbles passing through the nanobubble generator 110 may be supplied to the outside through a pipe.

Table 1 below shows various measurement values of the generated nanobubbles according to the average size of the particles included in the nanobubble generator. 10 to 12 show the content of the average particle diameter of the nanobubbles generated when particles having an average particle diameter of 0.1, 0.3 and 0.8 mm are applied to the nanobubble generator, respectively. The nanobubble generator was arranged vertically, and the liquid was arranged to flow from the top to the bottom of the nanobubble generator. The particles were spherical with an average particle diameter of 0.1, 0.3 and 0.8 mm, and the particles had an average particle diameter of 0.1 mm, and BZ-01 of AZ ONE was used, and YTZ-0.3 of Nikkato was used with an average particle diameter of 0.3 mm. Was used, and a 0.8 mm AGSB-20 of AZ ONE was used. Water was used as the liquid, and air was used as the gas. For the size of the nanobubbles, the particle size analyzer NS300 from Malvern Panalytical's Malvern NanoSight product line was used.

particle
Average particle diameter
(mm) Nano bubble
Average particle diameter
(nm) Nano bubble
The most frequent
(nm) For fluid
Nano bubble
content
(particles/ml) Nano bubble
Standard Deviation
(nm) 0.1 101.8 58.9 4.41e+008 59.2 0.3 146.2 89.9 4.60e+008 69.6 0.8 159.6 88.3 6.31e+008 97.5

Referring to Table 1 and FIGS. 10 to 12, it can be seen that the smaller the average particle diameter of the particles, the finer the average particle diameter of the generated nanobubbles and the standard deviation decreases. In addition, when the average particle diameter of the particles is 0.8 mm, it is observed that the particle diameter of the generated nanobubbles exceeds 600 nm (see Fig. 12), but when the average particle diameter of the particles is 0.3 mm, the particle diameter of the generated nanobubbles is It can be seen that it is 500 nm or less, and it can be seen that the standard deviation is greatly reduced (see FIG. 11).

Table 2 below shows various measurement values of the generated nanobubbles according to the arrangement direction of the nanobubble generator and the flow direction of the liquid, and FIG. 13 It shows the content of the average particle diameter of the nanobubbles generated when particles having an average particle diameter of 0.1 mm are applied to a horizontally arranged nanobubble generator. The position of the nanobubble generator was placed vertically and horizontally, and the liquid was measured by flowing from the top to the bottom and from the bottom to the top of the nanobubble generator. The particles had an average particle diameter of 0.1 mm and were spherical, and the particles of Table 1 were used. The remaining experimental conditions were the same as in Table 1 above.

Nano bubble generator arrangement direction Liquid flow direction Nano bubble average particle diameter
(nm) Nano Bubble Mode
(nm) Nano bubble content for fluid
(particles/ml) Nano bubble standard deviation
(nm) Perpendicular Top → bottom 101.8 58.9 4.41e+008 59.2 Perpendicular Bottom → top - - - - level Left → right 152.2 99.2 2.76e+008 91.5

In the case where the nanobubble generator was placed vertically and liquid was supplied from the bottom to the top, the liquid did not pass through the nanobubble generator at a sufficient flow rate, so it was practically impossible to apply, and the nanobubbles could not be measured. Referring to Table 2, FIG. 10 and FIG. 13, when the nanobubble generator is arranged vertically and the liquid is supplied in the upward → downward direction, the average particle diameter of the nanobubbles can be controlled to be small, and the standard deviation can be significantly reduced. have. In addition, it can be seen that the content of nanobubbles increases.

The apparatus for supplying medical sterilization water according to another embodiment of the present invention may further include a heating device for heating a liquid including the generated nano bubbles. The arrangement position of the heating device is not particularly limited as long as it can heat a liquid including nano bubbles generated through the nano bubble generator 110. For example, it may be disposed at the rear end of the nanobubble generator 110. The heating device is for improving the sterilization power of a liquid containing ozone confined nanobubbles, and may heat a liquid containing ozone confined nanobubbles including a heating device to a temperature of 30 to 60°C.

Hereinafter, the following tests were performed to check the sterilizing power of the sterilizing water supplied from the medical sterilizing water supply device according to an embodiment of the present invention.

<Experimental Example 1>

As a test strain, E. coli (Escherichia coli, E. coli) was cultured in a liquid medium, and then the cultured bacteria were diluted and used for the test. Add 1 mL of test bacteria to 9 mL of sterilized sterilized water generated from the medical sterilized sterilized water supply device of Fig. 1, mixed, shaken 2 to 3 times at room temperature, and reacted for 15 minutes to measure the number of bacteria to sterilize the initial number of bacteria. The reduction rate was investigated. The number of bacteria was measured using sterilized distilled water as a control and expressed as the initial number of bacteria. However, at this time, in the first dilution step of all experiments, E. coli (Escherichia coli, E. coli) is neutralized with a liquid medium, Difco™ LB broth (Luria Bertani media broth), Miller (Luria-Bertani), and BD . The test was carried out through the process, and when bacteria proliferated in the medium, it was calculated by multiplying the number of bacteria on the medium by the dilution factor, and if the bacteria did not proliferate in the medium, multiplying the dilution factor made in the neutralization step to "less than 10 』. The number of viable cells was calculated according to the following <Equation 1>, and the sterilization reduction rate was determined according to the following <Equation 2>.

<Equation 1>

N = C x D

N: number of viable cells

C: number of colonies (average value of the number of colonies of two)

D: Dilution factor (dilution factor of diluent)

<Equation 2>

R(%) = {(A-B)/A}x100

R: sterilization reduction rate

A: Initial bacterial count

B: Number of bacteria after 15 minutes

Reduction rate of sterilization after 15 minutes (%) Nanobubbles containing ozone <1 Sterile water (control) 2.7 × 10 ⁴

여기서, A : 초기 세균수Sterilization reduction rate (%) =

Where, A: initial number of bacteria

B: Number of bacteria after a certain time

As confirmed in Table 3, as a result of treating E. coli with sterilizing water supplied from a medical sterilizing water supply device according to another embodiment of the present invention for 15 minutes, a sterilizing effect of 99.9% was confirmed.

<Experimental Example 2>

As a test strain, Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), and streptococcus were cultured in a liquid medium, and the cultured bacteria were diluted and used for the test.

Example 1) Sterilization water generated from the medical sterilization water supply device of FIG. 1

Comparative Example 1) Sterilized water generated from the medical sterilized water supply device of Fig. 1 excluding the ozone generator

Add 0.2 mL of test bacteria solution to 20 mL of sterilized water produced from Example 1) and Comparative Example 1), mix, shake 2-3 times at room temperature, and measure the number of bacteria when reacting for 5 minutes to determine the number of bacteria. The rate of reduction in sterilization was investigated. The number of bacteria was measured using sterilized distilled water as a control and expressed as the initial number of bacteria. However, at this time, in the first dilution step of all experiments, Difco™ LB broth, Miller (Luria-Bertani), and BD The test was carried out through the process of neutralizing using the dilution factor. When bacteria grew in the medium, the number of bacteria on the medium was multiplied by the dilution factor. Less than (<10)". The number of viable cells was calculated according to the above <Equation 1>, and the sterilization reduction rate was determined according to the above <Equation 2>.

Coli Staphylococcus Streptococcus Example 1) <1 <1 <1 Comparative Example 1) 5.80 × 10 ⁴ 1.15 × 10 ⁴ 1.3 × 10 ⁴ Sterile water (control) 9.34 × 10 ⁴ 1.25 × 10 ⁴ 1.6 × 10 ⁴

As shown in Table 4, for Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), and streptococcus, sterilization supplied from a medical sterilizing water supply device according to an embodiment of the present invention As a result of treating the sterilized water for 5 minutes, it can be confirmed that there is a sterilization effect of 99.9%. On the other hand, in the case of nanobubbles containing air other than ozone, there was about 37% sterilization effect against Escherichia coli, E. coli, and about 8% sterilization against Staphylococcus aureus (S. aureus). There was an effect, and there was about 18% bactericidal effect against streptococcus.

<Experimental Example 3>

Hereinafter, the following tests were performed to check the ozone concentration of the sterilized sterilized water supplied from the medical sterilized sterilized water supply device according to an embodiment of the present invention.

Example 2): Using the medical sterilizing water supply device of FIG. 1, but the average particle diameter, mode, and content of the particles used in the nanobubble generator 110 are as shown in Table 5 below, and generated sterilizing water

Example 3): Using the medical sterilization water supply device of FIG. 1, but the average particle diameter, mode, and content of the particles used in the nanobubble generator 110 are as shown in Table 5 below,

Comparative Example 2): sterilized sterilized water generated from the medical sterilized sterilized water supply device of FIG. 1 excluding the nanobubble generator 110

Comparative Examples 3 and 4): Sterilized water produced by injecting ozone into the water contained in the container

For Example 2), Example 3), and Comparative Examples 2) to 4), ozone was injected for 30 minutes, after that, the ozone injection was stopped, and the ozone concentration over time was measured, and the results were It is shown in Table 6 and Figure 14 below.

Nano bubble average particle diameter
(nm) Nano Bubble Mode
(nm) Nano bubble content for fluid
(particles/ml) Example 2 129.6 97.3 5.61e+008 Example 3 73.7 46.7 4.02e+008

Concentration/hour (minutes) 0 5 10 20 30 -5 -10 -20 -30 Example 2 ppm 0 0.5 2 3 5 4 2 One - Example 3 ppm 0 1.3 2.5 4 4.5 2 One 0.5 0.2 Comparative Example 2 ppm 0 0.5 . 4.5 4.5 1.5 1.5 0.5 0.2 Comparative Example 3 ppm 0 0.5 One 2 3.5 1.5 1.5 One - Comparative Example 4 ppm 0 0.2 One 2 3.5 One 0.3 0.1 0.1

The (-) time in Table 6 indicates the time after the ozone injection is stopped. As shown in Table 6 and Fig. 14, ozone water of the sterilized sterilized water supplied from the medical sterilized sterilized water supply device according to an embodiment of the present invention It can be seen that the concentration remains more stable.

The medical device sterilization apparatus according to an embodiment of the present invention uses a liquid supply member, a gas supply member including an ozone generator, and a liquid supplied from the liquid supply member and a gas supplied from the gas supply member to provide nano-sized bubbles. It includes a nanobubble generator that generates nanobubble water containing.

A medical device sterilization device according to an embodiment of the present invention is a device for cleaning and sterilizing medical devices used when treating a patient, and in detail, saliva, blood, tooth fragments and powder of a patient after dental treatment, and various pathogenic microorganisms, etc. It is a medical device sterilization device that supplies sterilizing water that can be cleaned and sterilized at the same time simply and economically through nanobubbles containing ozone in cleaning and sterilizing medical devices contaminated with the same disease inducing factor.

In this case, the medical device may be a dental medical device and may be a handpiece, but is not limited thereto.

A medical device sterilization apparatus according to an embodiment of the present invention includes a supply control member including a liquid supply member, a gas supply member, and a sterilization water supply member including the nanobubble generator, and a valve for controlling the supply of the sterilization water; It may further include a mounting member having a fixing means for fixing the medical device that is the target of shagyun, and a drying member for allowing dry air to flow.

The supply control member may improve the sterilization effect of the medical device by adjusting the supply amount and speed of the sterilization water supplied from the sterilization water supply member.

In addition, the mounting member may fix the medical device detachably. In this case, the mounting member may simultaneously fix a plurality of medical devices.

Above, the present invention has been shown and described in connection with a preferred embodiment for illustrating the principle of the present invention, but the present invention is not limited to the configuration and operation as shown and described as such. Rather, it will be well understood by those skilled in the art that a number of changes and modifications to the present invention can be made without departing from the spirit and scope of the appended claims.

100: medical device sterilization water supply device 110: nano bubble generator
111: supply port 112: generator
113: outlet 114: particles
115a, 115b: screen member 120: gas supply member
121: part 1 122: part 2
123: part 3 124: nipple part
125: supply structure 130: liquid supply member
140: first pipe 141: second pipe
150: liquid supply source 160: ozone generator
121': air inlet portion 124': nipple portion
C: liquid flow
D: gas flow
E: Distance between the nipple part and the outer surface of the second part
F: distance between the inner surface of the third part and the outer surface of the second part

Claims (10)

A liquid supply member;
A gas supply member including an ozone generator; And
The liquid supplied from the liquid supply member and the gas supplied from the gas supply member are used to generate nano-bubble water containing nano-sized bubbles, and a supply port through which liquid is supplied from the liquid supply member and the nano-bubble water A medical sterilizing water supply device using a nanobubble water comprising a discharge port for discharging, and the supply port is located at the top and the discharge port is disposed at the bottom. The method of claim 1,
The nanobubble generator includes a generator for generating nano-sized bubbles,
The generator is a medical sterilization water supply device using nanobubble water including a plurality of particles that allow the gas mixed with the liquid to pass through and decompose to generate nano-sized bubbles. The method of claim 2,
The average particle diameter of the particles is 0.1 to 3.0 mm,
Medical sterilization water supply device using nano bubble water. The method of claim 1,
Both ends are respectively connected to the supply port of the liquid supply member and the nano bubble generator, further comprising a first pipe for providing a passage for moving the liquid supplied from the liquid supply member to the nano bubble generator,
The gas supply member includes a first part connected to the first pipe and one end to increase a flow velocity of the fluid supplied from the first pipe, and a second part connected to the other end of the first part Medical sterilization water supply device using. The method of claim 4,
The gas supply member includes a nipple structure surrounding at least a portion of an outer surface of the first portion and at least a portion of an outer surface of the second portion, and a supply structure providing a passage for supplying external air to the outer surface of the second portion. Medical sterilization water supply device using nanobubble water further comprising a part. The method of claim 5,
The gas supplied from the supply structure of the nipple part moves along between the outer surface of the second part and the inner surface of the nipple structure. The method of claim 4,
The gas supply member is disposed so that at least a part of the inner surface surrounds the outer surface of the other end of the second part, and further comprises a third part for reducing the pressure of the fluid supplied from the second part for medical sterilization using nanobubble water Disinfectant water supply. The method of claim 5,
The gas supply member further includes a third portion disposed so that at least a portion of the inner surface surrounds the outer surface of the other end of the second portion, and reduces a pressure of the fluid supplied from the second portion,
The gas supplied from the supply structure of the nipple part moves along the outer surface of the second part and the inner surface of the nipple structure and is supplied as a fluid flowing along the inner surface of the third part. Supply. The method of claim 1,
Both ends are connected to the liquid supply member and the supply port of the nanobubble generator, respectively, further comprising a first pipe for providing a passage for moving the liquid supplied from the liquid supply member to the nanobubble generator,
The gas supply member includes a nipple structure connected to the first pipe to provide a passage through which the fluid supplied from the first pipe flows and a supply structure connected to the outside, and one end is an inner surface of the supply structure Medical sterilization using nano-bubble water including an air inlet that communicates with the outside by placing it in and the other end is disposed inside the passage provided by the nipple structure to provide a passage for supplying external air to the fluid flowing along the passage Disinfectant water supply. A liquid supply member;
A gas supply member including an ozone generator;
A nanobubble generator for generating nanobubble water containing nano-sized bubbles by using the liquid supplied from the liquid supply member and the gas supplied from the gas supply member;
Supply control member including a valve for adjusting the supply of the sterilized disinfectant water; And
A device for sterilizing medical devices using nano-bubble water comprising a drying member that allows dry air to flow in.

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