KR102422311B1 - Medical Sterilization Disinfecting Water Supply Apparatus and Sterilizer for Medical Appliances using the same - Google Patents

Abstract

The present invention relates to a medical sterilization water supply device for supplying sterilization and sterilization water used for cleaning and disinfecting treatment areas during dental treatment and patients' saliva, blood, tooth fragments and powder, and disease-causing factors such as various pathogenic microorganisms. In cleaning and sterilizing the inside and outside of a medical device such as a handpiece, it relates to a medical sterilization and disinfection water supply device and a medical device sterilization device using nano-bubble water that can effectively clean and sterilize medical devices such as a contaminated handpiece.
To this end, the medical sterilization and disinfection water supply device using nano-bubble water uses 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. Produces nano-bubble water containing bubbles, and includes a supply port to which liquid is supplied from the liquid supply member and an outlet for discharging the nano-bubble water, wherein the supply port is located at the upper part and the outlet port is located at the lower part It includes a nano-bubble generator that becomes

Description

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

The present invention relates to a medical sterilization sterilization water supply device and a 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 fragments and powder, as well as various pathogenic microorganisms and viruses, etc., in the oral cavity of a patient during use. In general, contaminants of handpieces such as saliva and blood may include 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 cleaning/disinfecting medical devices such as used handpieces is to boil the medical devices in boiling water or use a high-temperature and high-pressure autoclave. However, this conventional method has a fatal disadvantage that it takes too much time to wash/disinfect one medical device. Considering the large number of patients visiting the dentist, the patient's waiting time for treatment is prolonged, and the quality of medical service experienced by the patient is inevitably reduced. It may not be possible to cause transmission of various disease-causing factors. In addition, in the case of the handpiece, the above-mentioned problem was prominent because the frequency of use of the handpiece was high among dental medical devices.

In addition, the conventional cleaning/disinfection method using high temperature and high pressure can damage medical devices such as handpieces and reduce their functions, and even when various disease-causing factors are inactivated through high temperature and high pressure, they remain inside the handpiece and cause other patients Since it can help the growth of pathogenic microorganisms by being transferred to

In general, after surgery or treatment, blood or living tissue is attached to various medical instruments such as medical instruments, surgical scalpels, and endoscopes. Infectious pathogens are most likely dormant among these attachments.

On the other hand, ozone has the sterilization power to sterilize harmful viruses and bacteria in a short time of seconds, but there is no risk or side effect of generating resistant bacteria like antibiotics. Research for its use is being actively conducted.

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

The present invention was devised in view of the above points, and a medical sterilizing and sterilizing water supply device for supplying sterilizing and sterilizing water used for cleaning and disinfecting treatment areas during dental treatment and a patient's saliva, blood, tooth fragments and powder; In cleaning and sterilizing the inside and outside of medical devices such as handpieces contaminated with disease-causing factors such as various pathogenic microorganisms, medical sterilization disinfection water using nano-bubble water that can effectively clean and sterilize medical devices such as contaminated handpieces An object of the present invention is to provide a supply device and a medical device sterilizer.

According to a preferred embodiment for achieving the above object of the present invention, the medical sterilization and disinfection water supply device using nano bubble water according to the present invention is a liquid supply member, a gas supply member including an ozone generator, and from the liquid supply member Using the supplied liquid and the gas supplied from the gas supply member to generate nano-bubble water containing nano-sized bubbles, and a supply port to which the liquid is supplied from the liquid supply member and an outlet for discharging the nano-bubble water. It may include a nano-bubble generator disposed so that the supply port is located at the upper portion and the outlet port is located at the lower portion.

The nano-bubble generator may include a generator for generating nano-sized bubbles, and the generator may include a plurality of particles that cause the gas mixed in the liquid to be decomposed while passing therebetween to generate nano-sized bubbles.

The average particle diameter of the plurality of particles included in the generator is 0.1 to 3.0 mm.

Both ends are respectively connected to the supply ports of the liquid supply member and the nano-bubble generator, and further comprising a first pipe providing a passage for moving the liquid supplied from the liquid supply member to the nano-bubble generator, wherein the gas supply The member may include a first part having one end connected to the first pipe and increasing the flow rate of the fluid supplied from the first pipe, and a second part having the other end and one end connected to the first part.

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 portion of an outer surface of the second part, and a supply structure that provides a passage for supplying external air to the outer surface of the second part. may include more.

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.

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

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

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 and is supplied as a fluid flowing along the inner surface of the third part.

It may further include a first pipe having both ends connected to the supply ports of the liquid supply member and the nano-bubble generator, respectively, and providing a passage for moving the liquid supplied from the liquid supply member to the nano-bubble 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 nipple part including a supply structure connected to the outside, and one end is on the inner surface of the supply structure. The arrangement may include an air inlet that communicates 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 as a fluid flowing along the passage.

In addition, the apparatus for sterilizing medical devices using nano-bubble water according to the present invention uses a liquid supply member, a gas supply member including an ozone generator, the liquid supplied from the liquid supply member, and the gas supplied from the gas supply member. It may include a nano-bubble generator for generating nano-bubble water containing air bubbles of the size, a supply control member including a valve for controlling the supply of sterilizing and disinfecting water, and a drying member for allowing dry air to flow in.

According to the medical sterilization sterilization water supply device and the medical device sterilization device using nano bubble water according to the present invention, it is possible to generate nano bubbles containing ozone to perform washing and sterilization at the same time, and harmful viruses and bacteria can be removed in seconds. As it can be killed within a short period of time, it can improve gum disease when treating periodontal disease, and can effectively sterilize medical devices within a short time.

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

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

Hereinafter, an embodiment of a medical sterilizing sterilizing water supply device and a medical device sterilizing device using nano-bubble 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 well-known functions or configurations may be omitted to clarify the gist of the present invention.

A medical sterilizing and disinfecting water supply device according to an embodiment of the present invention is a sterilizing and disinfecting water supply device that generates water containing nano-bubbles in which ozone is trapped in nano-sized bubbles. It may be used to supply sterile disinfectant water during oral treatment including implants or tooth extraction, and may be used for organ cleaning during surgery.

For example, when nano-bubble water containing ozone is sprayed from the medical sterilizing and disinfecting water supply device according to an embodiment of the present invention and cleaned with an ultrasonic scaler, it is possible to simultaneously remove tartar and bacteria while sterilizing periodontal germs in periodontal pockets that cannot be reached by a toothbrush. It can improve gum disease. In addition, the nano-bubble water containing the ozone can be used for cleaning the mouth after brushing at home to sterilize periodontal bacteria and prevent the growth of periodontal bacteria.

1 illustrates a medical device sterilization water supply device 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 nano-bubble generator 110 functions to include nano-sized bubbles (bubbles) in the liquid supplied from the liquid supply member 130 . The liquid supplied to the nano-bubble generator 110 includes a gas containing ozone supplied from the gas supply member 120 , and the liquid containing ozone passes through the nano-bubble generator 110 , so that the liquid Nano-sized bubbles are formed that trap ozone.

3 shows a nanobubble generator 110 according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along line AA′ of FIG. 3 . 3 and 4, the nano-bubble 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 void formed between the plurality of particles becomes a passage through which the fluid and gas pass, and as the fluid flows, vibration occurs between the particles, and the gas mixed in the fluid repeats contraction and expansion regularly to form nano-sized bubbles. function can be performed.

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 containing nanobubbles is discharged at a lower portion, the supply port 111 and A space for supporting a plurality of particles 114 may be included between the outlets 113 . In addition, in order to prevent the plurality of particles 114 from moving to the supply port 111 and the exhaust port 113 , between the space and the supply port 111 supporting the plurality of particles 114 and the plurality of particles Screen members (115a, 115b) may be further included between the space supporting the 114 and the outlet 113 .

The screen members 115a and 115b may function to prevent the particles 114 from being lost and to allow the particles 114 to be stably disposed. In addition, the screen members 115a and 115b may perform a filtering function to block foreign substances from being introduced or discharged. In addition, the screen members 115a and 115b include fine pores, so that the size of the nanobubbles generated by the plurality of particles 114 is made smaller, or a function of preventing bubbles larger than a certain size from being discharged can be performed. 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 sides. Through this, since the particles 114 can be more stably arranged, the functions described above can be performed more efficiently. The screen members 115a and 115b may be sponges, nonwoven fabrics, fibers, glass wool, ceramic filters, metal filters, or the like. The screen members 115a and 115b may be disposed only on either one of the supply port 111 and the discharge port 113 , and may be disposed in a shape surrounding the plurality of particles 114 as necessary. The arrangement 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 for the liquid to pass between the particles 114, so that the flow rate can be significantly reduced. In addition, when the average size of the particles 114 exceeds 1.5 mm, the size (particle diameter) of the bubbles formed because the space between the particles 114 is enlarged exceeds 1000 nm, so that the nanobubble formation efficiency is reduced. do. When the size of the particles 114 is 0.8 mm or less, 95% or more of the formed nanobubbles have a size (particle diameter) of 500 nm or less, so that nanobubbles can be formed more stably. 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 nanobubbles can be formed more stably.

The shape of the particles 114 is not particularly limited, but may be 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 an inorganic material such as ceramic or metal, and an organic material such as PET, PS, PP, HDPE, LDPE, or PVP.

Referring to FIG. 1 , the nano-bubble generator 110 may be vertically disposed with respect to the flow direction of the liquid, and the liquid may be disposed to flow from the top to the bottom of the nano-bubble generator 110 . have. More specifically, the nano-bubble generator 110 includes a supply port 111 to which liquid is supplied from the liquid supply member 130 and an outlet 113 for discharging the nano-bubble water, and the nano-bubble generator ( 110) is disposed such that the supply port 111 is located at the upper portion and the discharge port 113 is located at the lower portion, and the liquid supplied from the liquid supply member 130 is moved from the upper portion to the lower portion 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 place the particles 114 inside the nano-bubble generator 110 so that the distance between the particles 114 is kept constant in order to control the size of the nano-bubbles uniformly. have.

The nano-bubble generator 110 according to an embodiment of the present invention is arranged vertically based on the flow direction of the liquid so that the direction of gravity applied to the particles 114 and the flow direction of the liquid coincide with each other. The size can be controlled uniformly. In addition, since the particles 114 receive the pressure in the same direction by gravity and the flow of the liquid, the size of the nanobubbles generated by increasing the distance between the particles 114 can be controlled to be smaller.

The liquid supply member 130 serves to supply the liquid to the nano-bubble 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 transport a liquid including any one of a reciprocating pump, a rotary (rotary) pump, a centrifugal pump, an axial pump, and a friction pump. The liquid supply member 130 may further include a liquid supply source 150 for storing a 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 hydroponics, it may be raw water containing a culture medium in which nutrients necessary for plants to grow are dissolved.

The liquid supply member 130 and the nano-bubble generator 110 are connected by a pipe, and the gas supply member 120 may be disposed therebetween. In one embodiment, both ends are respectively connected to the supply ports 111 of the liquid supply member 130 and the nano-bubble generator 110, and the liquid supplied from the liquid supply member 130 is transferred to the nano-bubble generator ( It may further include a first pipe 140 that provides a passage to the 110). A check valve for preventing backflow of liquid may be disposed in the first pipe 140 .

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 nano-bubble generator 110 .

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

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

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 nano-bubble generator 110 .

5 is a view showing a gas supply member 120 according to an embodiment of the present invention, FIG. 6 is a cross-sectional view taken along line BB' of FIG. 5, and FIG. 7 is a flow C and a gas flow D in FIG. ) is indicated. 5 to 7 , the gas supply member 120 has one end connected to the first pipe 140 , and a first part 121 that increases the flow rate of the fluid supplied from the first pipe 140 . ), and a second part 122 in which the other end and one end of the first part 121 are connected. In addition, the gas supply member 120 includes a nipple structure surrounding at least a portion of an outer surface of the first portion 121 and at least a portion of an outer surface of the second portion 122 , and an outer surface of the second portion 122 . It may further include a nipple portion 124 including a supply structure 125 to provide a passage for supplying external air. Through this, the gas supplied from the supply structure 125 of the nipple part 124 may move and mix with the fluid whose flow rate is changed. In addition, by having such a structure, the amount of gas mixed in the liquid can be maintained constant of the liquid, 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. After moving to the end of the second part 122 along the inner surface of the can be mixed with the liquid. The second part 122 may be formed so that the outer surface of the end of the second part 122 is inclined toward the inside of the second part 122 so that the gas supplied from the nipple structure can be easily mixed into the 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. In more detail, an inner surface of the ends of the second part 122 may be formed to be inclined outwardly of the second part 122 .

The gas supply member 120, at least a part of the inner surface is disposed to surround the outer surface of the other end of the second part 122, the third part for reducing the pressure of the fluid supplied from the second part 122 (123) may be further included. In this case, the gas supplied from the supply structure 125 of the nipple part 124 moves along between the outer surface of the second part 122 and the inner surface of the nipple structure along the inner surface of the third part 123 . It may be supplied as a flowing fluid. Through this, the gas containing 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 penetrating 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 part where the nipple part 124 surrounds the second part 122 may be a hollow cylindrical shape to surround the second part 122 , and its inner diameter is greater than the outer diameter of the second part 122 . 0.4 to 2.4 mm, preferably 1.7 to 1.8 mm larger. 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 . formed, the gas containing ozone supplied from the supply structure 125 of the nipple part 124 is stably guided from the nipple part 124 to the third part 123 direction, and the fluid is directed toward the nipple part 124 . leakage can be prevented.

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 with 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 view 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, a nipple part ( 124'), and one end is disposed on the inner surface of the supply structure to communicate with the outside and the other end is disposed inside the passage provided by the nipple structure to supply a gas containing ozone as a fluid flowing along the passage. It may include an air inlet 121', which provides.

The nipple portion 124 ′ may have a T shape, and the air inlet 121 ′ may have an L shape. By having such a structure, an appropriate amount of gas may 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', it is possible to control the amount and bubble size of the ozone-containing gas mixed into the fluid.

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

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

1, the ozone generator 160 is located between the gas inlet through which gas is introduced from the outside and the 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, the gas containing 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 nano-bubble generator 110 by generating ozone from a gas introduced from the outside. Nanobubbles can be created.

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 . As a result, nano-sized bubbles that confine ozone in the liquid phase can be created.

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 ). , PSA). A pressurized alternating adsorber (PSA) removes nitrogen, carbon dioxide, water vapor, and hydrocarbons from the air under pressure to generate 80-95% high purity oxygen gas.

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 for absorbing air introduced from the outside and discharging the generated ozone to the supply structure 125 .

In addition, the ozone generator 160 may include a cooling device to cool the 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 alternating voltage is applied between electrodes, an intermittent discharge occurs in space, and accelerated electrons (e-) by the discharge collide with oxygen molecules to become oxygen atoms (O), while oxygen atoms (O) generated in this way are It reacts with oxygen molecules again to ozonize.

The method of generating ozone using the UV lamp uses a lamp emitting UV of 184.9 nm wavelength, 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 not generating secondary pollutants such as nitrogen oxides. Oxidation and disinfection by ozone can be divided into two reactions: the reaction by ozone itself and the OH radical generated when ozone is decomposed. Both substances have high oxidizing capacity (ozone: 2.07V, OH radical: 2.80V). Because it has, it is effective in the treatment of most chemicals including microorganisms and iron. In particular, in the case of microbial disinfection, unlike UV disinfection, which only inhibits the re-proliferation of microorganisms by damaging DNA, ozone has the characteristic of destroying all of the surface membranes, cell walls, enzymes, and DNA of microorganisms, and is effective against viruses and bacteria. Especially effective. It is known that when ozone of 05 mg/L is used, more than 99 to 999% of viruses and most bacteria are inactivated within minutes.

Medical sterilization water supply apparatus according to another embodiment of the present invention may further include a static mixer (static mixxer) to improve the mixing of liquid and gas.

The arrangement position of the static mixer is not particularly limited as long as the gas supplied from the liquid supply member 130 and the gas including ozone supplied from the gas supply structure 125 can be mixed. For example, a static mixer may be disposed on a pipe connecting the gas supply member 120 and the nano-bubble generator 110 .

The liquid containing nanobubbles passing through the nanobubble generator 110 may be supplied to the outside along 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, respectively, are applied to the nanobubble generator. 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 had an average particle diameter of 0.1, 0.3, and 0.8 mm and were spherical, and the particles had an average particle diameter of 0.1 mm, using AZ ONE's BZ-01, and Nikkato's YTZ-0.3 having an average particle diameter of 0.3 mm. was used, and AZ ONE's AGSB-20 was used as a thickness of 0.8 mm. Water was used as the liquid, and air was used as the gas. For the size of the nanobubbles, a particle size analyzer NS300 from Malvern Panalytical's Malvern NanoSight product family was used.

particle
average particle size
(mm) nano bubble
average particle size
(nm) nano bubble
Choi Bin-soo
(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 less than 500 nm, 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. The graph shows the content of the generated nanobubbles with respect to the average particle diameter 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 arranged vertically and horizontally, and the liquid was measured to flow 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 those in Table 1 were used as the particles. The remaining experimental conditions were the same as in Table 1 above.

Nanobubble generator arrangement direction liquid flow direction Nanobubble average particle size
(nm) Nano bubble mode
(nm) Nanobubble content for fluid
(particles/ml) Nanobubble standard deviation
(nm) Perpendicular top → bottom 101.8 58.9 4.41e+008 59.2 Perpendicular lower → upper - - - - horizontality left → right 152.2 99.2 2.76e+008 91.5

When the nanobubble generator was placed vertically and the liquid was supplied from bottom to top, the liquid did not pass through the nanobubble generator at a sufficient flow rate, making it practically impossible to apply, and nanobubbles were not measured. Referring to Table 2, FIGS. 10 and 13, when the nanobubble generator is vertically disposed and the liquid is supplied in the up-to-down 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 medical sterilization disinfectant water supply device according to another embodiment of the present invention may further include a heating device for heating the liquid containing the generated nanobubbles. The arrangement position of the heating device is not particularly limited as long as it can warm the liquid containing the nanobubbles generated by passing through the nanobubble 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-contained nanobubbles, and may include a heat generating device to heat a liquid containing ozone-contained nanobubbles to a temperature of 30 to 60°C.

Hereinafter, the following test was performed to confirm the sterilization power of the sterilizing and sterilizing water supplied from the medical sterilizing and sterilizing water supply device according to an embodiment of the present invention.

<Experimental Example 1>

As a test strain, Escherichia coli (E. coli) was cultured in a liquid medium, and then the cultured bacteria were diluted and used for the test. 1 mL of the test bacteria solution is added to 9 mL of the sterilization and disinfection water generated from the medical sterilization disinfection water supply device of FIG. 1, shaken 2-3 times at room temperature, and reacted for 15 minutes by measuring the number of bacteria to sterilize the initial number of bacteria decrease was found. The number of bacteria measured using sterile distilled water as a control was 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) was neutralized using liquid medium, Difco™ LB broth (Luria Bertani media broth), Miller (Luria-Bertani), 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. ' was indicated. 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 number of colonies of 2 sheets)

D: dilution factor (dilution factor of diluent)

<Equation 2>

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

R: Sterilization reduction rate

A: Initial number of bacteria

B: Number of bacteria after 15 minutes

Sterilization reduction rate 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 period of time

As confirmed in Table 3 above, 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 sterilization effect of 99.9% was confirmed.

<Experimental Example 2>

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

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

Comparative Example 1) Sterilization and sterilization water generated from the medical sterilization and sterilization water supply device of FIG. 1 excluding the ozone generator

0.2 mL of the test bacteria solution was added to 20 mL of the sterilized and disinfected water produced in Example 1) and Comparative Example 1), mixed, shaken 2-3 times at room temperature, and reacted for 5 minutes by measuring the number of bacteria to determine the initial number of bacteria The sterilization reduction rate was investigated. The number of bacteria measured using sterile distilled water as a control was expressed as the initial number of bacteria. However, in the first dilution step of all experiments, Difco™ LB broth, Miller (Luria-Bertani), BD for Escherichia coli, E. coli, S. aureus and streptococcus The test was carried out through the process of neutralization using Less than (<10)'. The number of viable cells was calculated according to <Equation 1>, and the sterilization reduction rate was determined according to <Equation 2>.

coli Staphylococcus aureus streptococci 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, E. coli (Escherichia coli, E. coli), Staphylococcus aureus (S. aureus) and Streptococcus (streptococcus) with respect to the sterilization supplied from the medical sterilization disinfection water supply device according to an embodiment of the present invention As a result of treating the sterilization 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, not ozone, there was a sterilization effect of about 37% against Escherichia coli, E. coli, and about 8% of sterilization against S. aureus. There was an effect, and there was a bactericidal effect of about 18% against streptococcus.

<Experimental Example 3>

Hereinafter, the following test was performed to confirm the ozone concentration of the sterilizing and sterilizing water supplied from the medical sterilizing and sterilizing water supply device according to an embodiment of the present invention.

Example 2): Using the medical sterilization and disinfection water supply device of FIG. 1 , the average particle diameter, mode, and content of the particles used in the nanobubble generator 110 were as in Table 5 below.

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

Comparative Example 2): sterilizing and sterilizing water generated from the medical sterilizing and sterilizing water supply device of FIG. 1 in which the nanobubble generator 110 is excluded

Comparative Examples 3 and 4): Sterilization and disinfection water generated 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, then ozone injection was stopped, ozone concentration was measured over time, and the results were It is shown in Table 6 and FIG. 14 below.

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

Concentration/Time (min) 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 was stopped. As shown in Table 6 and FIG. 14, ozone water in the sterilization water supplied from the sterilization water supply device for medical use according to an embodiment of the present invention. It can be seen that the concentration is maintained more stably.

A 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 the liquid supplied from the liquid supply member and the gas supplied from the gas supply member to produce nano-sized bubbles. Includes a nano-bubble generator for generating nano-bubble water containing.

A medical device sterilizing device according to an embodiment of the present invention is a device for cleaning and sterilizing medical devices used for treating a patient, in detail, after dental treatment, the patient's saliva, blood, tooth fragments and powder, and various pathogenic microorganisms, etc. In cleaning and sterilizing the inside and outside of medical devices contaminated with the same disease-causing factors, it is a medical device sterilizing device that supplies sterilizing water that can be cleaned and sterilized at the same time simply and economically through nano-bubbles containing ozone.

In this case, the medical device is 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 comprises: a supply control member including a liquid supply member, a gas supply member, and a sterilizing and disinfecting water supply member including the nano-bubble generator, and a valve for controlling the supply of the sterilizing and disinfecting water; It may further include a mounting member having a fixing means for fixing a medical device to be disinfected, and a drying member for allowing dry air to flow in.

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

In addition, the mounting member may be detachably fixed to the medical device. In this case, the mounting member can fix a plurality of medical devices at the same time.

In the foregoing, the present invention has been shown and described in connection with preferred embodiments for illustrating the principles of the present invention, but the present invention is not limited to the construction and operation as shown and described as such. Rather, it will be apparent to those skilled in the art that many changes and modifications may be made to the present invention without departing from the spirit and scope of the appended claims.

100: medical device sterilization disinfection water supply device 110: nano bubble generator
111: supply port 112: generating unit
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 source 160: ozone generator
121': air inlet 124': nipple
C: liquid flow
D: gas flow
E: the 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)

liquid supply member;
a gas supply member including an ozone generator; and
Nanobubble water containing nano-sized bubbles is generated using the liquid supplied from the liquid supply member and the gas supplied from the gas supply member, and a supply port through which the liquid is supplied from the liquid supply member and the nanobubble water Containing; including; and a nano-bubble generator that includes an outlet for discharging, and the supply port is located at the upper portion and the outlet is located at the lower portion.
Both ends are respectively connected to the supply ports of the liquid supply member and the nano-bubble generator, and further comprising a first pipe providing a passage for moving the liquid supplied from the liquid supply member to the nano-bubble generator, wherein the gas supply The member includes a first part having one end connected to the first pipe and increasing the flow rate of the fluid supplied from the first pipe, and a second part connected to the other end and one end of the first part, at least a portion of an inner surface of the first part a third part disposed to surround the outer surface of the other end of the second part and reducing the pressure of the fluid supplied from the second part; and a nipple part, wherein the nipple part includes at least a portion of the first part's outer surface and the second part a nipple structure surrounding at least part of the supply structure and a supply structure providing a passage for supplying external air to the outer surface of the second part, wherein the gas supplied from the supply structure of the nipple part is the outer surface of the second part and the nipple structure After moving along the inner surface of The distance is longer than the distance between the inner surface of the third part and the outer surface of the second part, and the outer surface part of the other end of the second part is formed to be inclined in the inner direction of the second part. The method of claim 1,
The nano-bubble generator includes a generator for generating nano-sized bubbles,
The generator includes a plurality of particles that are decomposed while passing between the gas mixed in the liquid to generate nano-sized bubbles,
a plurality of parts included in the generator The average particle diameter of the particles is 0.1 to 3.0 mm, medical sterilization water supply device using nano-bubble water. delete delete delete delete delete delete delete A medical sterilization and disinfection water supply device using the nano-bubble water of claim 1;
a supply control member including a valve for controlling the supply of sterilizing and disinfecting water; and
A medical device sterilization device using nano-bubble water including a drying member for allowing dry air to flow in.

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