WO2012029273A1 - 微生物数測定用セルと、それを用いた微生物数測定装置と、それを用いた微生物数測定方法 - Google Patents
微生物数測定用セルと、それを用いた微生物数測定装置と、それを用いた微生物数測定方法 Download PDFInfo
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- WO2012029273A1 WO2012029273A1 PCT/JP2011/004776 JP2011004776W WO2012029273A1 WO 2012029273 A1 WO2012029273 A1 WO 2012029273A1 JP 2011004776 W JP2011004776 W JP 2011004776W WO 2012029273 A1 WO2012029273 A1 WO 2012029273A1
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- Prior art keywords
- container
- holding
- measuring
- measurement
- microorganisms
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- 230000000813 microbial effect Effects 0.000 title claims abstract 4
- 238000000034 method Methods 0.000 title claims 2
- 238000010828 elution Methods 0.000 claims abstract description 139
- 238000005070 sampling Methods 0.000 claims abstract description 51
- 238000005259 measurement Methods 0.000 claims description 204
- 244000005700 microbiome Species 0.000 claims description 202
- 238000003780 insertion Methods 0.000 claims description 27
- 230000037431 insertion Effects 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 57
- 241000894006 Bacteria Species 0.000 description 43
- 235000009161 Espostoa lanata Nutrition 0.000 description 15
- 240000001624 Espostoa lanata Species 0.000 description 15
- 210000000214 mouth Anatomy 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 8
- 238000013459 approach Methods 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002906 medical waste Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/30—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
- C12M41/36—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of biomass, e.g. colony counters or by turbidity measurements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5029—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures using swabs
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/02—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus by impregnation, e.g. using swabs or loops
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0656—Investigating concentration of particle suspensions using electric, e.g. electrostatic methods or magnetic methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0609—Holders integrated in container to position an object
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0848—Specific forms of parts of containers
- B01L2300/0851—Bottom walls
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N2001/028—Sampling from a surface, swabbing, vaporising
Definitions
- the present invention relates to a cell for measuring the number of microorganisms, for example, for measuring the number of microorganisms present in the oral cavity or attached to food.
- the structure of a conventional cell for measuring the number of microorganisms of this type has been as follows.
- a bottomed cylindrical container having an upper surface opening and a rotor provided in the container, and a collecting part provided at the lower end of the rod-shaped microorganism collecting tool is used as an upper surface opening of the container
- the collection part was configured to elute the microorganisms of the collection part into the liquid in the container by rotating and hitting the rotor provided on the bottom surface in the container (for example, Patent Document 1) below.
- the liquid is put in the container in advance, or is put after the collecting part provided at the lower end of the microorganism collecting tool is inserted into the container.
- the above conventional example was very useful because the microorganisms in the collection part can be eluted in the liquid by rotating the rotor and hitting the collection part. There was a problem that it took time to take out from the collection part, and the elution time became long.
- the microorganisms are eluted in the liquid in the container by rotating the rotor provided on the bottom surface of the container and hitting the collecting part of the rod-shaped microorganism collecting tool.
- the lower part of the sampling part that is struck by the rotor provided on the bottom surface of the container, and depending on the sampling state of the user, when many microorganisms are collected from the middle part to the upper part of the sampling part is there.
- the present invention shortens the elution time of microorganisms.
- the present invention is a bottomed cylindrical container having an upper surface opening, and a standing portion disposed on the bottom surface in the container, and a collection part provided at the lower end of the rod-shaped microorganism collecting tool from the upper surface opening. And a plurality of first elution protrusions having a long wall shape in the axial direction of the holding body at predetermined intervals on the inner side surface of the holding body. Thus, an elution groove penetrating from the inside of the holding body to the outside of the holding body is provided in a portion between the plurality of first elution protrusions.
- FIG. 1 is a perspective view of a microorganism count measuring cell according to an embodiment of the present invention.
- FIG. 2A is a side view of a microorganism collecting tool used when the cell for measuring the number of microorganisms according to one embodiment of the present invention is used.
- FIG. 2B is a cross-sectional view of a microorganism collection tool used when the cell for measuring the number of microorganisms according to one embodiment of the present invention is used.
- FIG. 2C is a cross-sectional view of a microorganism collection tool used when the cell for measuring the number of microorganisms according to an embodiment of the present invention is used.
- FIG. 1 is a perspective view of a microorganism count measuring cell according to an embodiment of the present invention.
- FIG. 2A is a side view of a microorganism collecting tool used when the cell for measuring the number of microorganisms according to one embodiment of the present invention is used.
- FIG. 2B is a cross-section
- FIG. 3A is a longitudinal sectional view of a cell for measuring the number of microorganisms according to an embodiment of the present invention.
- FIG. 3B is a top view of the microorganism count measuring cell according to the embodiment of the present invention.
- FIG. 4 is a perspective view of the microorganism count measuring cell according to one embodiment of the present invention when not in use.
- FIG. 5 is a perspective view seen from below the cell for measuring the number of microorganisms according to one embodiment of the present invention.
- FIG. 6 is a perspective view when the cell for measuring the number of microorganisms according to one embodiment of the present invention is used.
- FIG. 7 is a cross-sectional view of the microorganism count measuring cell according to an embodiment of the present invention when used.
- FIG. 8 is an enlarged top view of the main part when the cell for measuring the number of microorganisms according to one embodiment of the present invention is used.
- FIG. 9 is an enlarged cross-sectional view of a main part when the microorganism count measuring cell according to one embodiment of the present invention is used.
- FIG. 10 is a perspective view when the cell for measuring the number of microorganisms according to one embodiment of the present invention is used.
- FIG. 11 is a cross-sectional view of the microorganism count measurement cell according to an embodiment of the present invention when in use.
- FIG. 12A is a top view of a cell for measuring the number of microorganisms according to one embodiment of the present invention.
- FIG. 12B is a longitudinal cross-sectional view of a cell for measuring the number of microorganisms according to an embodiment of the present invention.
- FIG. 13 is a cross-sectional view of the microorganism count measurement cell according to an embodiment of the present invention when used.
- FIG. 14 is a perspective view seen from below the cell for measuring the number of microorganisms according to one embodiment of the present invention.
- FIG. 15 is a perspective view of an essential part of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 16 is a perspective view of a microorganism count measuring apparatus according to an embodiment of the present invention.
- FIG. 17 is a perspective view of a microorganism count measuring apparatus according to an embodiment of the present invention.
- FIG. 18 is a perspective view of a microorganism count measuring apparatus according to an embodiment of the present invention.
- FIG. 19 is a perspective view of a cell for measuring the number of microorganisms according to an embodiment of the present invention.
- FIG. 20A is a side view of a microorganism collecting tool used when the cell for measuring the number of microorganisms according to one embodiment of the present invention is used.
- FIG. 20B is a cross-sectional view of a microorganism collecting tool used when the cell for measuring the number of microorganisms according to one embodiment of the present invention is used.
- FIG. 20C is a cross-sectional view of a microorganism collecting tool used when the cell for measuring the number of microorganisms according to one embodiment of the present invention is used.
- FIG. 21A is a longitudinal sectional view of a cell for measuring the number of microorganisms according to one embodiment of the present invention.
- FIG. 21B is a top view of the microorganism count measuring cell according to the embodiment of the present invention.
- FIG. 22 is a perspective view of the microorganism count measuring cell according to one embodiment of the present invention when not in use.
- FIG. 23 is a perspective view seen from below the cell for measuring the number of microorganisms according to one embodiment of the present invention.
- FIG. 24 is a perspective view of a microorganism count measuring apparatus according to an embodiment of the present invention.
- FIG. 25 is a sectional view of a microorganism count measuring apparatus according to an embodiment of the present invention.
- FIG. 26 is a top view of the main part of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 27 is a front view of a measuring chip used when the microorganism count measuring apparatus according to one embodiment of the present invention is used.
- FIG. 28 is a cross-sectional view of a microorganism count measuring apparatus according to an embodiment of the present invention.
- FIG. 29 is a sectional view of a microorganism count measuring apparatus according to an embodiment of the present invention.
- FIG. 30 is a sectional view of a microorganism count measuring apparatus according to an embodiment of the present invention.
- FIG. 31 is a perspective view of main parts of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 32 is a perspective view of main parts of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 33A is a cross-sectional view of a main part of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 33B is an enlarged view of a main part of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 33C is a cross-sectional view of a main part of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 34 is a control block diagram of the microorganism count measuring apparatus according to the embodiment of the present invention.
- FIG. 35A is a fragmentary cross-sectional view of a microorganism count measuring apparatus according to an embodiment of the present invention.
- FIG. 35B is an enlarged view of a main part of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 36A is a perspective view of main parts of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 36B is a cross-sectional view of main parts of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 37 is a cross-sectional view of a microorganism count measuring apparatus according to an embodiment of the present invention.
- FIG. 38A is a cross-sectional view of a main part of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 38B is a top view of the essential parts of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 36A is a perspective view of main parts of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 36B is a cross-sectional view of main parts of the microorgan
- FIG. 39 is a perspective view seen from below the cell for measuring the number of microorganisms according to one embodiment of the present invention.
- FIG. 40 is a cross-sectional view of a main part of the microorganism count measuring apparatus according to one embodiment of the present invention.
- FIG. 41 is a cross-sectional view at the time of measurement of the cell for measuring the number of microorganisms according to one embodiment of the present invention.
- a bottomed cylindrical container 1 is formed of, for example, a synthetic resin such as polycarbonate, and a circular upper surface opening 2 is formed on the upper surface.
- a rod-shaped microorganism collecting tool such as a cotton swab 3 shown in FIGS. 2A to 2C is inserted.
- a cylindrical holding body 5 into which the sampling part 4 provided at the lower end of the inserted cotton swab 3 is inserted is vertically arranged with respect to the bottom surface of the container 1.
- the upper surface of the cylindrical holding body 5 is a circular opening without an obstacle such as a beam so that the sampling part 4 of the cotton swab 3 can be easily inserted.
- the cotton swab 3 is provided with a cotton collection portion 4 at the lower end portion of the rod body 3a, and the lower end of the collection portion 4 has a larger diameter than the rod body 3a.
- a spherical portion 4a is formed.
- FIG. 3A is a longitudinal sectional view of the container 1
- FIG. 3B is a top view of the container 1.
- the holding body 5 includes a plurality of (three pieces) side bodies 5a arranged to stand on the bottom surface of the container 1 at predetermined equal intervals, and the inside of the side bodies 5a.
- a plurality of (three) elution protrusions 7 provided in the shape of a long wall in the axial direction of the holding body 5 are provided on the side surface.
- a plurality (three) of elution grooves 6 penetrating the inside and the outside of the holding body 5 are provided between the plurality of (three) side bodies 5 a constituting the holding body 5 from the bottom surface of the holding body 5. Is formed into a thin long groove shape.
- the side surface of the holding body 5 is divided into three side bodies 5a extending in the axial direction of the holding body 5 and sandwiched by three elution grooves 6 arranged at predetermined equal intervals.
- the elution protrusion 7 is each provided in the inner side surface of these side bodies 5a in the center part of the circumferential direction of the side body 5a.
- a plurality (three) of elution protrusions 8 are provided on the inner bottom surface of the holding body 5 on the circle at the center of the axis of the holding body 5 at equal intervals.
- These elution protrusions 8 have a hemispherical shape whose upper surface is a spherical surface.
- a measuring liquid for example, pure water 9
- the step 10 formed in the upper surface opening 2 of the container 1 is used as shown in FIG.
- the lid 11 made of aluminum is welded in a removable state to seal the container 1.
- the container 1 is stored and managed in this state.
- two fixing holes 1 a that do not penetrate the bottom of the container 1 are provided as a fixing part for fixing the container 1 to an external device. 1 is provided at an axially symmetric position with respect to the central axis.
- FIG. 6 to 11 show how the measurer elutes the microorganisms (bacteria) contained in the swab 3 into the microorganism count measuring cell of the present embodiment.
- the measurer removed the lid 11 (FIG. 4) covering the upper surface opening 2 of the container 1 from the container 1, and provided the container 1 on the upper surface of the container base 12 as shown in FIG. It attaches to the attaching part 13.
- the measurer holds the stick 3a of the cotton swab 3 shown in FIG. 2, and traces the tongue in the oral cavity of the person to be sampled by the sampling part 4 provided at the lower end thereof to collect bacteria in the oral cavity. .
- the measurer inserts the main portion 4 into the cylindrical holder 5 from the upper surface opening 2 of the container 1 as shown in FIG.
- FIG. 8 is a top view of the state in which the collection part 4 of the cotton swab 3 is inserted into the holding body 5.
- the cylindrical holding body 5 is configured such that the side surface of the collection part 4 of the cotton swab 3 is attached to the holding body 5. It is set as the structure contact
- the sampling part 4 is inserted in contact with the three long wall-like elution protrusions 7 provided on the inner wall surface of the side body 5 a, and the measurer elutes through the rod body 3 a of the cotton swab 3. While feeling the insertion resistance of the projection 7, the sampling portion 4 is inserted into the holding body 5 while being guided by the three long-walled elution projections 7.
- the collecting part 4 of the swab 3 is firmly held at equal intervals by the three elution protrusions 7 provided in the shape of a long wall in the axial direction of the holding body 5.
- the collection unit 4 is held by the holding body 5 while being immersed in pure water 9 inside the container 1 as shown in FIG.
- the upper part of the swab 3 is held by the swab mounting part 15, and the swab 3 is mounted on the rotating tool 14 connected to the swab mounting part 15.
- the cotton swab 3 is pushed down from above by the cotton swab attachment portion 15, so that the cotton ball portion 4 a formed at the lower end of the collection portion 4 of the cotton swab 3 is inside the holding body 5.
- the cotton ball portion 4a is pushed down toward the bottom surface, and the cotton ball portion 4a is compressed between the inner bottom surface of the container 1 and the lower end portion of the rod 3a, and firmly attached to the three elution protrusions 8 (FIG. 3B) provided on the inner bottom surface. Will abut.
- the motor 17 inside the rotating tool 14 rotates and the swab 3 rotates via the swab mounting portion 15, and is provided at the lower end of the swab 3.
- the collection unit 4 rotates inside the holding body 5.
- the sampling unit 4 when the sampling unit 4 is rotated, the sampling unit 4 is stably rotated by being held in contact with three directions at equal intervals. At this time, the entire side of the sampling unit 4 has three side bodies.
- the long-walled elution protrusions 7 provided on 5a are rubbed one after another. By this rubbing, bacteria collected in the collection unit 4 are scraped off and eluted from the collection unit 4.
- the side portion of the sampling portion 4 is in contact with the elution protrusion 7 throughout, but as shown in FIG. It grows toward the bottom.
- the sampling part 4 is rubbed more strongly from the middle part to the elution protrusion 7 than from the upper part. Then, the cotton which forms the collection part 4 moves along the side part of the rod 3a to the upper direction with little rubbing pressure.
- the rubbing pressure between the sampling part 4 and the elution protrusion 7 is made uniform at the side of the sampling part 4. That is, it is deformed so that the thickness of the cotton becomes constant. Since the deformed cotton having a constant thickness is rubbed against the elution protrusion 7 having a long wall shape, almost the same force is applied from the lower part to the upper part of the sampling part 4 to promote bacterial elution. Elutes well.
- the cotton of the collection unit 4 is squeezed to the rod 3a with a uniform thickness, and the bacteria collected on this cotton are finally collected. It elutes into pure water 9 so as to be squeezed out from the part 4.
- the cotton ball part 4a formed at the lower end of the sampling part 4 is compressed between the inner bottom surface of the holding body 5 and the lower end part of the rod 3a.
- they are in contact with the three hemispherical elution protrusions 8 provided on the inner bottom surface.
- the collection part 4 rotates, the cotton ball part 4a is rubbed against the three elution protrusions 8 in order, and bacteria collected on the cotton ball part 4a by this rubbing are also collected. 4 can be eluted in a short time.
- the cotton forming the cotton ball portion 4a moves toward the side of the rod body 3a with less rubbing pressure.
- the cotton of the sampling part 4 is also squeezed until it is wound around the rod 3a with a uniform thickness.
- the elution groove 6 is provided in the shape of a narrow long groove from the bottom surface to the top surface on the side surface of the holding body 5, the bacteria eluted from the collection unit 4 are Through the nearest elution groove 6 facing the sampling part 4, it is possible to go out of the holding body 5 and immediately elute into the pure water 9 in the container 1.
- the sampling unit 4 when the sampling unit 4 is inserted into the holding body 5 and the sampling unit 4 rotates, as described above, all the side parts from the lower part to the upper part of the sampling part 4 are first inside the holding body 5. It will be in the state contact
- bacteria can be efficiently extracted from the collection unit 4, and the bacteria elution time can be shortened.
- the collection part 4 of the cotton swab 3 before elution was firmly in contact with the holding body 5, but the swab 3 was rotated to elute the bacteria, and the collection part 4 was moved to the elution protrusion 7 and elution protrusion 8.
- the sampling part 4 is in a state of being squeezed and wound around the rod 3a as shown in FIG. 2C.
- the container 1 containing the pure water 9 from which the bacteria are eluted is taken out from the container table 12 and set on a measuring instrument (not shown), and the number of bacteria is measured.
- the elution protrusion 8 is provided on the inner bottom surface of the holding body 5 in addition to the three long-walled elution protrusions 7 provided on the inner wall surface of the side body 5a.
- the elution protrusion 7 alone is sufficient. Since bacteria can be eluted in the pure water 9, in this case, the elution protrusion 8 may be omitted from the inner bottom surface of the holding body 5, as shown in FIGS. 12A and 12B.
- the side surface of the holding body 5 is divided into three side surface bodies 5 a, and the side surface body 5 a is configured to stand on the bottom surface of the container 1.
- the rod-shaped swab 3 when the rod-shaped swab 3 is rotated at a high speed of, for example, 100 rotations / second, the swab 3 may be rotated away from the center of rotation due to centrifugal force. Since it is fixed to the bottom surface of the container 1 alone, the upper part can be bent outward from the center of rotation.
- the excessive pressure due to the rotation of the cotton swab 3 can be appropriately released by the side body 5a, and the sampling part 4 can be rubbed against the elution protrusion 7 with an appropriate pressure.
- bacteria can be eluted from the collection part 4 in a short time of 10 seconds, and the bacteria elution time can be shortened.
- two fixing holes 1 a are provided on the outer side of the bottom surface of the container 1 as a fixing portion for fixing the container 1 to an external device, with respect to the central axis of the cylindrical container 1. It is provided at an axially symmetric position. Then, the two fixing holes 1a are fitted into two convex portions 13a provided on the inner bottom portion of the mounting portion 13 of the container base 12 of FIG. Therefore, for example, even when the swab 3 is rotated at a high speed of 100 rotations / second, the container 1 can be prevented from rotating due to the influence of the rotation of the swab 3.
- the rotating swab 3 can be firmly rubbed against the elution protrusions 7 of the stationary three side bodies 5a, and the elution time of bacteria can be shortened.
- a plurality (three) of elution protrusions 8 are provided on the inner bottom surface of the holder 5 of the container 1 on the circle at the center of the axis of the holder 5 at equal intervals.
- the lower end portion of the rod 3a is smoothly guided to the axial center of the holding body 5 by using the curved surface of the hemisphere.
- the rotation of the swab 3 can be stabilized to elute the bacteria, and the bacteria elution time can be shortened.
- the measurement of the number of bacteria present in the oral cavity has been described as an example, but the present invention can also be applied to a cell for measuring the number of microorganisms for measuring the number of microorganisms attached to food.
- the rod 3a of the cotton swab 3 is rotated.
- the rod 3a of the cotton swab 3 is fixed with a finger, for example, and the container 1 is rotated. May be.
- the elution protrusion 7 of the holding body 5 can be rubbed against the sampling part 4 of the cotton swab 3, so that the cotton swab is the same as in the first embodiment.
- the bacteria collected by the three collection units 4 can be eluted in the pure water 9 in a short time.
- the rib 1b formed on the outside of the bottom surface of the container 1 constitutes a connecting portion that is connected to the driving protrusion 1d of the rotation driving portion that rotates the container 1.
- two drive protrusions 1d are provided at intervals of 180 degrees, so that the motor 1e shown in FIG. 13 provided with the container holding part 1c as one component of the rotation drive part is rotated forward ( When the container 1 is rotated clockwise, the container 1 can be rotated forward in contact with the rib 1b existing in the rotation direction.
- the container 1 can be reversed by contacting the rib 1b on the reverse side.
- the motor 1e is rotated forward at a speed of 7 revolutions per second for 1 second, for example.
- the motor 1e is reversed for 1 second at a speed of 7 rotations per second, for example. This forward / reverse operation is performed for a total of 30 seconds.
- the motor 1e is rotated forward for 10 seconds at a speed of 7 rotations per second, for example.
- the cotton thickness of the sampling part 4 is deformed so as to be constant.
- the deformed cotton having a constant thickness is rubbed and squeezed by the long-walled elution protrusion 7, and the bacteria remaining to the end are eluted in the sampling part 4.
- the cotton ball part 4a is rubbed against the elution protrusion 8 and disappears, and the cotton of the sampling part 4 is also wound around the rod body 3a with a uniform thickness. It will be in a squeezed state.
- the side surface of the holding body 5 is provided with an odd number (three) of side bodies 5a. Furthermore, the horizontal width of the side body 5 a is configured to be larger than the horizontal width of the elution groove 6.
- the collection part 4 can be rotated stably.
- the side surface of the holding body 5 is provided with an odd number (three) of side surface bodies 5a, the elution groove 6 is opposite to the container 1 with the rotation axis of the container 1 interposed therebetween as shown in FIG. On the side, the side body 5a is arranged.
- the sampling unit 4 can be rotated stably.
- the circumferential width of the elution groove 6 is configured to be smaller than the thickness of the rod 3a of the cotton swab 3. For this reason, the collection part 4 of the cotton swab 3 does not jump out of the holding body 5 through the elution groove 6 of the holding body 5.
- the side surface 5a constituting the holding body 5 is vertically arranged on the bottom surface of the container 1 so as to be perpendicular to the bottom surface.
- the pure water 9 is put into the space from the outer wall surface of the side body 5a which comprises this holding body 5 to the inner wall surface of the container 1, and it is set as the elution area
- a measurement electrode (not shown) of a measurement chip (not shown) for measuring the number of bacteria is inserted in an immersed state in the elution region from the outer wall surface of the side body 5a to the inner wall surface of the container 1. It is supposed to be possible. That is, when measuring the number of bacteria using this measurement electrode (not shown), the elution area can be used as the measurement area, which is highly convenient.
- the bottomed cylindrical container 1 having the upper surface opening 2 and the bottom end of the swab 3 from the upper surface opening 2 are disposed upright on the bottom surface in the container 1.
- a cylindrical holding body 5 having a plurality of side bodies 5a into which the sampling part 4 provided is inserted, and an elution protrusion 7 is provided on the inner side surface of the side body 5a, and between the plurality of side bodies 5a. Since the elution groove 6 penetrating from the inside of the holding body 5 to the outside of the holding body 5 is formed, the elution time of bacteria can be shortened.
- the elution protrusion 7 is provided on the inner side surface of the side body 5a constituting the holding body 5, and the elution groove 6 penetrating from the inside to the outside is provided on the side surface of the holding body 5.
- the elution protrusion 7 comes into contact from the lower part to the upper part of 4, whereby bacteria can be eluted from all parts from the lower part to the upper part of the sampling part 4, and as a result, the elution time of bacteria (microorganisms) is shortened. It can be done.
- the bacteria eluted in this way can be eluted from the elution groove 6 to the outside of the holding body 5, that is, to the pure water 9 in the container 1, the subsequent measurement can be easily performed. .
- a front cover 19 is provided on the front upper side of the box-shaped main body case 18 so as to be opened and closed as shown in FIGS.
- the opening / closing structure of the front cover 19 will be described in detail later.
- a container holding portion 20 is provided in the inner portion of the main body case 18 on the back side of the front cover 19 that is exposed when the front cover 19 is opened.
- the container holding portion 20 has a bottomed cylindrical shape with an open top surface. Drive protrusions 21 that are opposed to each other at intervals are provided.
- the container 22 has a cylindrical holding body 23 formed on the inner bottom surface of the container 22.
- Three elution protrusions 24 in the direction are formed at intervals of 120 degrees, and three elution grooves 25 penetrating from the inside to the outside are formed on the side surface of the holding body 23 at intervals of 120 degrees so as to face the elution protrusions 24.
- Three hemispherical elution protrusions 26 are formed at intervals of 120 degrees on the bottom of the holder 23.
- pure water 27 is stored in the container 22 as a liquid for eluting microorganisms, and the upper surface opening of the container 22 does not spill pure water 27 during transportation as shown in FIG.
- a lid 28 is attached.
- a protrusion 29 that engages with the driving protrusion 21 of the container holding portion 20 is disposed at a lower portion of the bottom surface of the container 22 at an interval of 180 degrees.
- the holding body 23 of the container 22 is for inserting a sampling portion 31 provided at the lower end of the rod-shaped microorganism collecting tool (cotton swab) 30 shown in FIGS. 20A to 20C from above, and in this state, into the pure water 27.
- the microorganisms are eluted. That is, the collection part 31 of the microorganism collection tool 30 is inserted into the oral cavity, and the microorganisms collected by the collection part 31 are eluted into the pure water 27.
- the operation button 32 provided on the lower front portion of the main body case 18 shown in FIG. 16 is pressed.
- this operation button 32 is pressed, as shown in FIG.
- the cover 19 is unlocked, and the front cover 19 is lifted slightly upward.
- spring springs 33 are attached to both sides of the front cover 19 as shown in FIG. 32, and the front cover 19 is locked as described above. If it comes off, the spring spring 33 that has been fully extended returns to the original state as shown in FIGS. 32 to 31, and the front cover 19 is lifted upward by the restoring force at this time. 31 and 32 are used for the operation described later, but the front cover 19 and the like are not described so that the lifting operation of the front cover 19 and the like can be easily understood.
- FIG. 22 since the lid 28 shown in FIG. 22 is attached to the upper surface opening of the container 22, the lid 28 is removed from the upper surface opening of the container 22, and in that state, FIG. 25, the container 22 is inserted from the lower part through the upper surface opening of the container holding part 20, and the lower part and the outer peripheral part of the container 22 are thereby held by the container holding part 20.
- pure water 27 is stored in the container 22 held by the container holding unit 20, and the pure water 27 contains the microorganism collecting tool 30 shown in FIG.
- the collection part 31 will be inserted. Before that, the collection unit 31 of the microorganism collection tool 30 shown in FIGS. 20A and 20B is inserted into the oral cavity, and the oral cavity is collected by the collection unit 31.
- the collecting part 31 of the microorganism collecting tool 30 is inserted from above the holding body 23 of the container 22 as shown in FIGS.
- the front cover 19 is pivoted rearward from the space above the upper surface opening of the container 22, so that the collection unit 31 of the microorganism collection tool 30 is held.
- the operation of inserting into the body 23 can be performed very easily.
- a protrusion 29 is provided at the bottom of the bottom surface of the container 22, and on the bottom surface of the container holding portion 20 that holds the container 22, as shown in FIG.
- the drive projection 21 is provided on the front.
- the switch 36 shown in FIG. 18 When rotating the motor 35, the switch 36 shown in FIG. 18 is pushed. When the switch 36 is pushed, the microorganism collecting tool 30 shown in FIGS. The switch 36 is pushed with the left hand of the knob.
- the container 22 is held in a certain state without rotating. However, as described above, the container 22 is moved by the motor 35 via the container holding unit 20. The motor rotates for a set timer time (for example, 10 seconds).
- the holding body 23 of the container 22 is divided into three parts on the entire circumference, and the elution groove 25 is present in the divided part, and further, the elution protrusion 24 is provided on the inner peripheral surface. Therefore, the collecting part 31 of the microorganism collecting tool 30 is in a state where pressure is applied from the outside while being mainly rotated by the elution protrusion 24. For this reason, the microorganisms (bacteria) collected by the collection unit 31 are very effectively eluted into the pure water 27 in the holding body 23, and at the next moment, the pure water in the container 22 is passed through the elution groove 25. The elution proceeds widely to 27.
- the display lamp 37 shown in FIG. 24 blinks, and when the timer time expires, the blinking of the display lamp 37 and the rotation of the motor 35 are finished.
- the collection part 31 of the microorganism collection tool 30 is in a state where both the lower part and the outer peripheral part are compressed inward as shown in FIG. 20C.
- the holding force hardly works and can therefore be easily picked up.
- the state where the microorganism collecting tool 30 is picked from the container 22 is the state shown in FIG.
- the measurement chip 39 shown in FIG. 27 is attached to the measurement chip holding portion 38 provided on the inner surface of the front cover 19 in this state.
- the measurement chip 39 has a rectangular plate shape, and the connection electrode 40 to the measurement chip holding part 38 is provided at the upper end, and the measurement electrode is provided at the lower end. 41 is provided.
- connection electrode 40 is attached to the measurement chip holding part 38 as shown in FIG. 28, electrical and mechanical connection is performed.
- an electrode insertion portion is configured by the front cover 19 and the measurement chip holding portion 38, and the electrode insertion portion is located above the container 22 when the front cover 19 is lifted and opened as shown in FIG.
- the measurement chip insertion port of the measurement chip holding unit 38 is in a state of facing upward from the horizontal position.
- connection electrode 40 of the measurement chip 39 it is possible to easily attach to the measurement chip holding part 38 while visually checking the measurement chip insertion port of the measurement chip holding part 38.
- the measuring chip 39 is In this state, the container 22 is inserted into the upper surface opening of the container 22.
- the handle 34 is further lowered in this state, as shown in FIG. 30, the front cover 19 is lowered to the state shown in FIG. 16, and is locked in this state. Is immersed in the pure water 27 of the container 22.
- the measurement start switch shown in FIG. 16 is shown in a state where the measurement electrode 41 of the measurement chip 39 is immersed in the pure water 27 in the container 22 by the electrode insertion part constituted by the front cover 19, the measurement chip holding part 38 and the like. Press 42. Then, a voltage of 3 MHz, for example, is applied to the measurement electrode 41, and the microorganisms eluted in the container 22 are collected in the measurement electrode 41 portion. At the same time, the number of microorganisms is measured by applying a voltage of, for example, 800 kHz to the measurement electrode 41.
- the motor 35 is used at the time of this measurement.
- the container holding unit 20 and the container 22 are rotated, so that the opportunity to approach the measurement electrode 41 of microorganisms widely diffused in the container 22 is increased.
- the measurement chip 39 is detached in the through hole 43 shown in FIG. 27 provided in the middle of the measurement chip 39 as shown in FIG. A rod-like operation body 44 constituting the body is inserted.
- the operation body 44 is in a state of being retracted backward until the measurement tip 39 is completely lowered into the container 22, but as shown in FIG.
- the tip 39 projects and moves in the direction of the front cover 19 from a state before the tip 39 is completely lowered into the container 22.
- the through-hole 43 provided in the measurement chip 39 is a long through-hole 43 in the vertical direction. Therefore, the measurement chip 39 is completely lowered. Even before this operation, the operating body 44 can be projected and moved.
- a hook-like engagement portion 45 is provided on the lower surface of the distal end of the operating body 44. The lower end side of the through hole 43 will be engaged.
- the number of microorganisms in the container 22 can be measured in the state of FIG. 30, but when the front cover 19 is opened and closed as shown in FIG. At the same time, the measuring chip 39 is already in the state after measurement in the container 22.
- the operation body 44 constituting the measurement chip detaching body is provided.
- the measuring chip 39 When the number of microorganisms is measured with the measuring chip 39, that is, when the measuring electrode 41 of the measuring chip 39 is immersed in pure water 27 as shown in FIG. In the through-hole 43, the operating body 44 is in a state of being protruded and moved.
- the mechanism shown in FIG. 31 and FIG. 32 is what causes the operating body 44 to project and move backward from FIG. 29 to FIG. 30 and from FIG. 30 to FIG.
- the operating body 44 is slidably provided in a cylindrical guide tube 46, and the guide tube 46 is fixed to the main body case 18.
- the operating body 44 is constantly urged rearward on the side opposite to the front cover 19 by a spring 47 shown in FIG. This state is the state shown in FIGS.
- 35A and 35B show a state immediately after the front cover 19 starts to rise by the return force of the spring spring 33 shown in FIG. 32 after the measurement.
- the operating body 44 maintains its home position without retreating immediately after the front cover 19 starts to rise. It has become a state.
- the measurement chip 39 is in a state where the connection electrode 40 at the upper end thereof is held by the measurement chip holding portion 38, as the front cover 19 slightly rises, this is also as shown in FIG. 35A.
- the hook-like engagement portion 45 of the operation body 44 is engaged with the lower end portion of the through hole 43 of the measurement tip 39 as shown in FIG. 35B.
- 36A and 36B show the moment when the front cover 19 further rises from this state. As shown in FIG. 36A, when the front cover 19 is raised, the operation pin 49 of the operating body 44 is moved to the inclined portion of the cam plate 48 away from the flat surface 50 of the cam plate 48. Yes.
- the operating body 44 is moved backward by the restoring force of the spring 47, and thereby the portion below the through hole 43 of the measuring tip 39 having flexibility is moved to the rear side.
- the container 22 is pressed against the inner wall surface.
- the hook-like engagement portion 45 is provided at the distal end of the operation body 44 as described above, as shown in FIG. 36B, the lower side than the through-hole 43 of the measurement tip 39 is rearward. It can be pulled stably.
- the portion above the through-hole 43 of the measurement chip 39 is held by the measurement chip holding portion 38, so that it is inclined forward from below.
- FIG. 37 shows a state where the front cover 19 is further raised.
- the connection electrode 40 of the measurement chip 39 is detached from the measurement chip holding portion 38.
- the front cover 19 is moved upward by the handle 34 as shown in FIG. After that, the measuring chip 39 is picked out from the container 22.
- a characteristic feature of this embodiment is that, even when the front cover 19 is opened, the measuring chip 39 is not lifted out of the container 22 in conjunction with the opening operation.
- the opening operation of the front cover 19 prevents the pure water 27 with microorganisms attached at the time of measurement from inadvertently scattering or dripping down the front cover 19 in front or below, which is preferable in terms of hygiene. .
- connection electrode 40 at the upper end of the measurement tip 39 is picked up and slightly lower.
- the engagement with the through hole 43 of the engaging portion 45 of the operating body 44 is released, so that it can be easily picked out of the container 22.
- connection electrode 40 at the upper end for extracting the measuring chip 39 is not immersed in the pure water 27 in the container 22, no sanitary problem arises even if it is picked here.
- the measurement chip 39 is accidentally dropped during the picking operation of the measurement chip 39. As shown in FIGS. 38A and 38B, the measurement chip 39 dropped. Is held in the container 22, the measuring chip 39 is not inadvertently dropped on the floor or the like, and in this respect, there is no problem with respect to hygiene.
- the length of the measurement chip 39 in this embodiment is longer than the depth of the container 22, even if the measurement chip 39 is dropped into the container 22 as shown in FIGS. 38A and 38B, the measurement is performed. If the upper end of the tip 39 is picked, the measuring tip 39 can be easily picked and discarded without touching the pure water 27 in the container 22.
- FIG. 34 is a control block diagram for performing the above operations.
- the motor 35 is connected to a motor power supply unit 52 of a power supply unit 51, and the motor power supply unit 52 is connected to a motor power supply control unit 54 of a control unit 53.
- an electrode power supply unit 55 of the power supply unit 51 is connected to the measurement electrode 41, and this electrode power supply unit 55 is connected to an electrode power supply control unit 56.
- the above-described 3 MHz and 800 kHz voltages are applied from the electrode power supply 55 to the measurement electrode 41, and the number of microorganisms is measured by the measurement unit 57 and the calculation unit 58 connected to the measurement electrode 41 at the same time. Is displayed on a display unit 59 provided behind the front cover 19.
- operation unit 60 provided below the display unit 59 in FIG. 34 is an operation unit for power supply. Further, the switch 36, the display lamp 37, the measurement start switch 42, and the like shown in FIG. 18 are all connected to the control unit 53 although not shown in FIG.
- the present embodiment includes the container holding unit 20 that holds the bottomed cylindrical container 22 having an opening on the upper surface, and the container 22 held by the container holding unit 20.
- the measurement chip 39 is inserted into the container 22 through the opening from above the container 22 held by the container holding part 20 and a motor (rotation drive part) 35 that rotates around the vertical rotation axis.
- a measurement chip holding unit 38 (which constitutes an electrode insertion unit), and a measurement unit 57 for measuring microorganisms with the measurement electrode 41 of the measurement chip 39 inserted into the container 22 by the electrode insertion unit,
- the measurement chip 39 is detachably attached to the measurement chip holding portion 38 (which constitutes the electrode insertion portion), and the operation body 44 that holds the measurement chip 39 in a state where the measurement chip 39 is inserted into the container 22. Because the measuring chip detachment member configuration) is obtained by a structure provided with, it is possible to reduce measurement costs.
- an electrode insertion part for inserting the measurement chip 39 into the container 22 is provided from above the container held by the container holding part 20 through the opening. Therefore, the container 22 may have a simple bottomed cylindrical shape having an opening on the upper surface. As a result, the production cost of the container 22 can be reduced, and the measurement cost can be reduced. It becomes.
- the measurement chip 39 is detachably attached to the measurement chip holding part 38 (which constitutes an electrode insertion part), and the measurement chip 39 is inserted into the container 22 in a state where the measurement chip 39 is inserted. Since the operation body 44 (which constitutes the measurement chip detachment body) is provided, the measurement chip 39 is not scattered or dropped when the measurement chip 39 is discharged after measurement. The hygienic effect can be enhanced.
- two drive protrusions 21 are provided at an interval of 180 degrees. Therefore, when the container holding portion 20 is rotated by the motor 35, the container is brought into contact with the rib 61 existing in the rotation direction. 22 can be rotated. When the motor 35 is reversed, the container 22 can be reversed by contacting the rib 61 on the reverse side.
- a hook-like engagement portion 45 is provided on the lower surface of the distal end of the operating body 44, and when the measurement tip 39 is detached, the measurement tip 39 penetrates the engagement portion 45.
- the lower end side of the hole 43 is engaged, as shown in FIG. 40, a structure in which the hook-shaped engagement portion 45 is not provided at the tip of the operation body 44 may be adopted.
- the measurement chip 39 falls into the container 22.
- the measurement chip 39 is taken out from the container holding unit 20 in a state of being accommodated in the container 22 and discarded as medical waste.
- the elution of microorganisms into the pure water 27 is performed by picking the upper part of the microorganism collecting tool 30 with the front cover 19 open, for example, with the right hand, and the container 22 through the container holding unit 20. This is done by rotating the motor 35.
- the microorganism collecting tool holding portion (not shown) provided on the inner surface side of the front cover 19 holds the upper part of the microorganism collecting tool 30. To do. And if it is set as the structure of this Embodiment 3, the operation
- the operation button 32 provided at the lower front portion of the main body case 18 shown in FIG. 16 is pressed.
- this operation button 32 is pressed, as shown in FIG.
- the cover 19 is unlocked, and the front cover 19 is lifted slightly upward.
- spring springs 33 are attached to both sides of the front cover 19 as shown in FIG. 32, and the front cover 19 is locked as described above. If the spring spring 33 is disengaged, the extended spring spring 33 is restored to its original state as shown in FIGS. 32 to 31, and the front cover 19 is lifted upward by the restoring force at this time. 31 and 32 are used for the operation described later. In order to facilitate understanding of the lifting operation of the front cover 19 and the like, in FIGS. 31 and 32, the front cover 19 and the like are used. It is not listed.
- the lid 28 is removed from the upper surface opening of the container 22, and in this state, as shown in FIGS.
- the container 22 is inserted into the upper surface opening of the container holding unit 20 from below, whereby the lower part and the outer periphery of the container 22 are held by the container holding unit 20.
- pure water 27 is stored in the container 22 held by the container holding unit 20.
- the pure water 27 is shown in FIGS. 20A and 20B.
- the collecting part 31 of the microorganism collecting tool 30 is inserted.
- the collection unit 31 of the microorganism collection tool 30 shown in FIGS. 20A and 20B is inserted into the oral cavity, and the oral cavity is collected by the collection unit 31.
- the collecting part 31 of the microorganism collecting tool 30 is inserted from above the holding body 23 as shown in FIGS.
- the front cover 19 is pivoted rearward from the space above the upper surface opening of the container 22, so that the collection unit 31 of the microorganism collection tool 30 is held.
- the operation of inserting into the body 23 can be performed very easily.
- a protrusion 29 is provided at the bottom of the bottom surface of the container 22, and the bottom surface of the container holding part 20 holding the container 22 is shown in FIG. As shown, a drive projection 21 is provided.
- the measurement chip 39 shown in FIG. 27 is attached to the measurement chip holding portion 38 provided on the inner surface of the front cover 19 in this state.
- the measurement chip 39 has a rectangular plate shape, and the connection electrode 40 to the measurement chip holding part 38 is provided at the upper end, and the measurement electrode is provided at the lower end. 41 is provided.
- connection electrode 40 is attached to the measurement chip holding part 38 as shown in FIG. 28, electrical and mechanical connection is performed.
- the electrode insertion portion is constituted by the front cover 19, the measurement chip holding portion 38, and the like.
- the front cover 19 is lifted and opened as shown in FIG. Above, the measurement chip insertion port of the measurement chip holding part 38 is in a state of facing upward from the horizontal position.
- connection electrode 40 of the measurement chip 39 it is possible to easily attach to the measurement chip holding part 38 while visually checking the measurement chip insertion port of the measurement chip holding part 38.
- the measuring chip 39 is In this state, the container 22 is inserted into the upper surface opening of the container 22. If the handle 34 is further lowered in this state, as shown in FIG. 30, the front cover 19 is lowered to the state shown in FIG. 16, and is locked in this state. Is immersed in the pure water 27 of the container 22.
- the microorganism collecting tool 30 When the front cover 19 is lowered to the state shown in FIG. 16, the microorganism collecting tool 30 is held above the microorganism collecting tool holding portion (not shown) provided on the inner surface side of the front cover 19. It is the composition which becomes. For this reason, if it is set as the structure of this Embodiment 3, the operation
- the front cover 19 is lowered to the state shown in FIG. 16, the measurement electrode 41 of the measurement chip 39 is immersed in the pure water 27 in the container 22, and the microorganism collection tool 30 is placed above the microorganism collection tool 30 ( The measurement start switch 42 shown in FIG. 16 is pushed while being held in the state (not shown).
- the container holding part 20 is rotated by the motor 35 shown in FIG. 25, and the driving protrusion 21 and the protrusion 29 are engaged, whereby the container 22 is also rotated.
- the container 22 is rotated by the motor 35 via the container holding unit 20 for a set timer time (for example, 10 seconds).
- the holding body 23 of the container 22 is divided into three parts on the entire circumference, and the elution groove 25 is present in the divided part, and the elution protrusion 24 is provided on the inner peripheral surface.
- the 30 sampling portions 31 are in a state where pressure is applied from the outside while rotating mainly by the elution protrusion 24. For this reason, the microorganisms (bacteria) collected by the collection unit 31 are very effectively eluted into the pure water 27 in the holding body 23, and at the next moment, the pure water in the container 22 is passed through the elution groove 25. The elution proceeds widely to 27.
- a voltage of 3 MHz is applied to the measurement electrode 41, and the microorganisms eluted in the container 22 are collected in the measurement electrode 41 portion.
- the number of microorganisms is measured by applying a voltage of, for example, 800 kHz to the measurement electrode 41.
- the motor is used for the measurement.
- the container holding unit 20 and the container 22 are rotated by 35 so that the microorganisms diffused widely in the container 22 have more opportunities to approach the measurement electrode 41.
- the measurement chip 39 is detached in the through hole 43 shown in FIG. 27 provided in the middle of the measurement chip 39 as shown in FIG. A rod-like operation body 44 constituting the body is inserted.
- the operation body 44 is in a state of being retracted backward until the measurement tip 39 is completely lowered into the container 22, but as shown in FIG.
- the tip 39 projects and moves in the direction of the front cover 19 from a state before the tip 39 is completely lowered into the container 22.
- the through-hole 43 provided in the measurement chip 39 is a long through-hole 43 in the vertical direction. Therefore, the measurement chip 39 is completely lowered. Even before this operation, the operating body 44 can be projected and moved.
- a hook-like engagement portion 45 is provided on the lower surface of the distal end of the operating body 44. The lower end side of the through hole 43 will be engaged.
- the number of microorganisms in the container 22 can be measured in the state of FIG. 30, but when the front cover 19 is opened and closed as shown in FIG. At the same time, the measuring chip 39 is already in the state after measurement in the container 22. That is, when the measurement chip 39 after measurement is lifted upward together with the front cover 19 as shown in FIG. 28, the pure water 27 with the number of microorganisms adhering at the time of measurement is inadvertently disposed in front of or below the front cover 19. In this embodiment, therefore, as described above, the operation body 44 constituting the measurement chip detaching body is provided.
- the operating body 44 has already been protruded and moved into the through hole 43 of the measuring chip 39.
- the mechanism shown in FIG. 31 and FIG. 32 is what causes the operating body 44 to project and move backward from FIG. 29 to FIG. 30 and from FIG. 30 to FIG.
- the operating body 44 is slidably provided in a cylindrical guide tube 46, and the guide tube 46 is fixed to the main body case 18.
- the operating body 44 is constantly urged rearward on the side opposite to the front cover 19 by a spring 47 shown in FIG. This state is the state shown in FIGS.
- 35A and 35B show a state immediately after the front cover 19 starts to rise by the return force of the spring spring 33 shown in FIG. 32 after the measurement.
- the operating body 44 maintains its home position without retreating immediately after the front cover 19 starts to rise. It has become a state.
- the measurement chip 39 is in a state where the connection electrode 40 at the upper end thereof is held by the measurement chip holding portion 38, this is also shown in FIGS. 35A and 35B as the front cover 19 slightly rises. As shown in FIG. 35B, ascending slightly, as a result, the hook-like engaging portion 45 of the operating body 44 is engaged with the lower end portion of the through hole 43 of the measuring tip 39 as shown in FIG. 35B. .
- 36A and 36B show the moment when the front cover 19 further rises from this state. As shown in FIG. 36A, when the front cover 19 is raised, the operation pin 49 of the operating body 44 is moved to the inclined portion of the cam plate 48 away from the flat surface 50 of the cam plate 48. Yes.
- the operating body 44 is moved backward by the restoring force of the spring 47, and thereby the portion below the through hole 43 of the measuring tip 39 having flexibility is moved to the rear side.
- the container 22 is pressed against the inner wall surface.
- the hook-like engagement portion 45 is provided at the distal end of the operation body 44 as described above, as shown in FIG. 36B, the lower side than the through-hole 43 of the measurement tip 39 is rearward. It can be pulled stably.
- the portion above the through-hole 43 of the measurement chip 39 is held by the measurement chip holding portion 38, so that it is inclined forward from below.
- FIG. 37 shows a state where the front cover 19 is further raised.
- the connection electrode 40 of the measurement chip 39 is detached from the measurement chip holding portion 38.
- the front cover 19 is moved upward by the handle 34 as shown in FIG. After that, the measurement tip 39 is picked out from the container 22.
- a characteristic feature of this embodiment is that, even when the front cover 19 is opened, the measuring chip 39 is not lifted out of the container 22 in conjunction with the opening operation.
- the opening operation of the front cover 19 prevents the pure water 27 with the number of microorganisms adhering at the time of measurement from being inadvertently scattered or dripping down the front cover 19 in front or below. Become.
- connection electrode 40 at the upper end of the measurement tip 39 is picked up and slightly lower.
- the engagement with the through hole 43 of the engaging portion 45 of the operating body 44 is released, so that it can be easily dropped into the container 22.
- the operation body 44 as shown in FIG. 40, one having a tip 62 at the tip can be used.
- the measurement chip 39 and the microorganism collection tool 30 are stored in the container 22, so that the container 22 is held by the container.
- the measuring chip 39 and the microorganism collecting tool 30 are taken out as medical waste together with the container 22.
- the container 22 without touching the pure water 27 in the container 22, the container 22, the measuring chip 39, and the microorganism collecting tool 30 can be discarded as medical waste.
- FIG. 34 is a control block diagram for performing the above-described operation.
- the motor 35 is connected to the motor power source 52 of the power source 51, and the motor power source 52 is connected to the motor power source of the controller 53. It is connected to the control unit 54.
- an electrode power supply unit 55 of the power supply unit 51 is connected to the measurement electrode 41, and this electrode power supply unit 55 is connected to an electrode power supply control unit 56. That is, the above-described 3 MHz and 800 kHz voltages are applied from the electrode power supply 55 to the measurement electrode 41, and the number of microorganisms is measured by the measurement unit 57 and the calculation unit 58 connected to the measurement electrode 41 at the same time. Is displayed on a display unit 59 provided behind the front cover 19.
- operation unit 60 provided below the display unit 59 in FIG. 34 is an operation unit for power supply. Further, the switch 36, the display lamp 37, the measurement start switch 42, and the like shown in FIG. 18 are all connected to the control unit 53 although not shown in FIG.
- the container bottom surface of the container 63 used in the fourth embodiment is configured to be inclined upward from the outer peripheral surface of the holding body 23 erected on the container bottom surface to the inner wall surface of the container 63. . More specifically, it is inclined at an angle of 30 degrees.
- the container holding unit 20 and the container 63 are rotated by the motor 35. At this time, as shown in FIG.
- the outer peripheral portion (the inner surface portion of the container 63) rises. That is, a spiral swirl flow is formed in the container 63.
- the container bottom surface of the container 63 is inclined upward from the outer peripheral surface of the holding body 23 erected on the container bottom surface to the inner wall surface of the container 63.
- the pure water 27 of the container 63 rises along the inclined surface of the bottom surface of the container and further forms a rising water flow that rises along the inner wall surface of the container 63.
- a descending water flow that flows along the surface is formed. That is, a water flow in the vertical direction is formed.
- the microorganisms (bacteria) eluted in the pure water 27 rise along the inclined surface of the bottom surface of the container along this strong rising water flow, to the measurement electrode 41 (a in FIG. 33) of the measurement chip 39. Will be reached.
- the microorganisms (bacteria) eluted in the pure water 27 of the container 63 have many opportunities to approach the measurement electrode 41 of the measurement chip 39. As a result, it is possible to shorten the elution time of microorganisms while shortening the measurement time.
- the present invention is provided with a bottomed cylindrical container having an upper surface opening, and standing on the bottom surface of the container, and is provided at the lower end of the rod-shaped microorganism collecting tool from the upper surface opening.
- a plurality of first elution protrusions having a long wall shape in the axial direction of the holding body at a predetermined interval on the inner side surface of the holding body.
- An elution groove penetrating from the inside of the holding body to the outside of the holding body is provided in a portion between the plurality of first elution protrusions on the side surface of the holding body.
- the cylindrical holder since the cylindrical holder is arranged upright on the bottom surface in the container, the collection part provided at the lower end of the rod-shaped microorganism collection tool is inserted from the upper surface opening of the container. Will be.
- the shaft extends from the lower part to the upper part of the sampling part.
- the first elution protrusion that has a long wall shape in the direction contacts with a predetermined interval.
- an elution groove penetrating from the inside of the holding body to the outside of the holding body is provided in a portion between the plurality of first elution protrusions on the side surface of the holding body. For this reason, the microorganisms eluted from the collection part of the microorganism collecting tool can be eluted into the container through the elution groove.
- the microorganisms eluted in this way can be eluted from the elution groove to the outside of the holding portion, that is, to the liquid in the container, the subsequent measurement can be easily performed.
- the present invention is a bottomed cylindrical container having an upper surface opening, and is placed upright on the bottom surface in the container, and from the upper surface opening to the lower end of the rod-shaped microorganism collecting tool.
- a plurality of first elution protrusions having long walls in the axial direction of the holding body at predetermined intervals on the inner side surface of the holding body.
- the elution time of the microorganism is provided because the elution groove penetrating from the inside of the holding body to the outside of the holding body is provided on the side surface of the holding body between the plurality of first elution protrusions. Can be shortened.
- the cylindrical holder since the cylindrical holder is arranged upright on the bottom surface in the container, the collection part provided at the lower end of the rod-shaped microorganism collection tool is inserted from the upper surface opening of the container. Will be.
- first elution protrusions having a long wall shape in the axial direction of the holding body are provided on the inner side surface of the holding body at a predetermined interval, The first elution protrusions having a long wall shape in the axial direction abut at predetermined intervals.
- the microorganisms can be eluted from all parts from the lower part to the upper part of the collecting part of the microorganism collecting tool.
- an elution groove penetrating from the inside of the holding body to the outside of the holding body is provided on the side surface of the holding body between the plurality of first elution protrusions. For this reason, the microorganisms eluted from the collection part of the microorganism collecting tool can be eluted into the container through the elution groove.
- the microorganisms eluted in this way can be eluted from the elution groove to the outside of the holding portion, that is, to the liquid in the container, the subsequent measurement can be easily performed.
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Abstract
Description
以下、本発明の一実施形態を、例えば口腔内に存在する微生物(細菌)の数を測定するための微生物数測定用セルに適用したものを、添付図面を用いて説明する。
図16に示すように、箱状の本体ケース18の前方上方には図17、図18に示すように前面カバー19が開閉自在に設けられている。この前面カバー19の開閉構造については後で詳しく説明するが、解放時には、まず、図16、図17に示すように、前面カバー19は上方に持ち上がり、つぎに、この状態から図17、図18に示すように、前面カバー19は上方へ回動することで、この開放動作が行われる。
実施の形態2においては、純水27への微生物の溶出は、前面カバー19を開放した状態で微生物採取具30の上方を、たとえば、右手で摘んで、容器22を、容器保持部20を介してモータ35で回転させることにより行うこととしている。
この実施の形態4においては、実施の形態3で用いた図22に示す底面がフラットな容器22の代わりに、図41に示すように、底面を傾斜させた容器63を用いており、この点が実施の形態3とは異なる。
1a 固定穴
1b リブ
1c 容器保持部
1d 駆動突起
1e モータ
2 上面開口部
3 綿棒
3a 棒体
4 採取部
4a 綿球部
5 保持体
5a 側面体
6 溶出溝
7 溶出突起
8 溶出突起
9 純水
10 段部
11 蓋体
12 容器台
13 装着部
13a 凸部
14 回転具
15 綿棒装着部
16 スイッチ
17 モータ
18 本体ケース
19 前面カバー
20 容器保持部
21 駆動突起
22 容器
23 保持体
24 溶出突起
25 溶出溝
26 溶出突起
27 純水
28 蓋
29 突起
30 微生物採取具
31 採取部
32 操作ボタン
33 スプリングバネ
34 取手
35 モータ
36 スイッチ
37 表示ランプ
38 測定チップ保持部
39 測定チップ
40 接続電極
41 測定電極
42 測定開始スイッチ
43 貫通孔
44 操作体
45 係合部
46 ガイド管
47 スプリング
48 カム板
49 操作ピン
50 平面
51 電源部
52 モータ用電源部
53 制御部
54 モータ用電源制御部
55 電極用電源部
56 電極用電源制御部
57 測定部
58 演算部
59 表示部
60 操作部
61 リブ
62 先端部
63 容器
Claims (21)
- 上面開口部を有する有底筒状の容器と、この容器内の底面上に立設配置されるとともに、棒状の微生物採取具の下端部に設けた採取部が挿入される筒状の保持体とを備え、
前記保持体の内部側面には、所定間隔で、この保持体の軸方向に長壁状となった複数の第1の溶出突起を設け、前記保持体の側面で、前記複数の第1の溶出突起の間部分に、この保持体の内部から、この保持体の外部に貫通する溶出溝を設けた微生物数測定用セル。 - 前記筒状の保持体は、この保持体に挿入される前記微生物採取具の前記採取部の側面を、この保持体の内部側面に設けた複数の第1の溶出突起に当接させて保持する構成とした請求項1に記載の微生物数測定用セル。
- 前記保持体の側面は、この保持体の軸方向に伸びた複数の溶出溝によって複数の側面体に等間隔に分割し、これら複数の前記側面体は、前記容器の底面に立設させた請求項2に記載の微生物数測定用セル。
- 前記保持体の側面には、前記側面体を奇数個設けた請求項3に記載の微生物数測定用セル。
- 前記保持体の前記溶出溝の周方向の幅を、この保持体に挿入される前記微生物採取具の棒体の太さよりも小さくした請求項3に記載の微生物数測定用セル。
- 前記保持体の内部底面には、第2の溶出突起を、前記保持体の軸中心の円上に等間隔で複数個設けた請求項1に記載の微生物数測定用セル。
- 前記容器内には、液体を設け、この容器の上面開口部には、蓋体を取り外し可能な状態で設けた請求項1に記載の微生物数測定用セル。
- 前記容器底面の外側には、この容器を回転させる回転駆動部との連結部を設けた請求項1に記載の微生物数測定用セル。
- 請求項1に記載された微生物数測定用セルの上面に前記開口部を有する有底筒状の前記容器を、前記開口部を上方にして保持する容器保持部と、この容器保持部で保持された前記容器を、上下方向の回転軸の周りに回転させる回転駆動部と、前記容器保持部で保持された前記容器の上方から、前記開口部を介して、この容器内に測定チップを挿入する電極挿入部と、この電極挿入部によって前記容器内に挿入された前記測定チップの測定電極により、微生物の測定を行う測定部とを備えた微生物数測定装置。
- 有底筒状の前記容器の底面を、前記容器の内壁面に向けて、上方に傾斜させた請求項9に記載の微生物数測定装置。
- 前記容器保持部は、前記容器の外周を保持した状態で、この容器を回転駆動させる構成とした請求項9に記載の微生物数測定装置。
- 前記容器保持部は、上面に開口部を有する有底筒状とした請求項11に記載の微生物数測定装置。
- 前記容器保持部には、前記容器底面の外側に設けた連結部に向けて突出する駆動突起を設けた請求項12に記載の微生物数測定装置。
- 前記電極挿入部は、前記測定チップを着脱自在に保持する測定チップ保持部を有する構成とした請求項9に記載の微生物数測定装置。
- 前記電極挿入部は、水平位置よりも上方で前記測定チップを装着するとともに、前記測定チップを下方に回動させることにより、この測定チップを前記容器内に挿入させる構成とした請求項14に記載の微生物数測定装置。
- 請求項1に記載された微生物数測定用セルを構成する上面に前記開口部を有する有底筒状の前記容器を、前記開口部を上方にして保持する容器保持部と、この容器保持部で保持された前記容器を、上下方向の回転軸の周りに回転させる回転駆動部と、前記容器保持部で保持された前記容器の上方から、前記開口部を介して、この容器内に測定チップを挿入する電極挿入部と、この電極挿入部によって前記容器内に挿入された前記測定チップの測定電極により、微生物の測定を行う測定部とを備え、
前記測定チップを前記電極挿入部に着脱自在に装着するとともに、この測定チップが前記容器内に挿入された状態で、この測定チップを保持する測定チップ離脱体を設けた微生物数測定装置。 - 前記測定チップ離脱体は、前記測定チップに設けた貫通孔内に挿入される操作体によって構成した請求項16に記載の微生物数測定装置。
- 本体ケースと、この本体ケースの前面側を開閉自在に覆った前面カバーと、この前面カバーの背面側の前記本体ケース内に設けられるとともに、請求項1に記載された微生物数測定用セルを構成する上面に前記開口部を有する有底筒状の前記容器を、前記開口部を上方にして保持する容器保持部と、この容器保持部で保持された前記容器を、上下方向の回転軸の周りに回転させる回転駆動部と、前記容器保持部で保持された前記容器の上方から、前記開口部を介して、この容器内に測定チップを挿入する電極挿入部と、この電極挿入部によって前記容器内に挿入された前記測定チップの測定電極により、微生物の測定を行う測定部とを備え、
前記測定チップを前記電極挿入部に着脱自在に装着するとともに、この測定チップが前記容器内に挿入された状態で、この測定チップを保持する測定チップ離脱体を設けた微生物数測定装置。 - 前記測定チップ離脱体は、前記測定チップに設けた貫通孔内に挿入される操作体によって構成し、この操作体には、操作ピンを設け、この操作ピンは、前記前面カバーの開閉動作によって動作するカム板に係合させた請求項18に記載の微生物数測定装置。
- 前記カム板には、前記前面カバーの開閉初期に前記操作ピンを非駆動状態とする平面部を設けた請求項19に記載の微生物数測定装置。
- 請求項18に記載の微生物数測定装置を用いた微生物数の測定方法であって、まず、前記本体ケースの前面側に設けた前記前面カバーを開放した状態で前記容器保持部に前記容器を装着し、次に、棒状の微生物採取具の下端部に設けた採取部を前記容器の保持体に挿入するとともに、前記電極挿入部に前記測定チップを装着し、その後、前記本体ケースの前面側に設けた前記前面カバーを閉成するとともに、前記電極挿入部により前記測定チップを前記容器内に挿入させ、次に前記回転駆動部により前記容器を回転させることで、この容器内の液中に微生物を溶出させ、その後、前記電極挿入部の前記測定チップにより微生物数の測定を行う微生物数測定方法。
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EP11821296.8A EP2612901A4 (en) | 2010-08-30 | 2011-08-29 | Microbial counting cell, microbe counting device using same, and microbe counting method using same |
CN201180022418.7A CN102884171B (zh) | 2010-08-30 | 2011-08-29 | 微生物数量测定用单元、使用它的微生物数量测定装置、以及使用它的微生物数量测定方法 |
US13/575,037 US9139806B2 (en) | 2010-08-30 | 2011-08-29 | Microbial counting cell, microbe counting device using same, and microbe counting method using same |
SG2012055406A SG182743A1 (en) | 2010-08-30 | 2011-08-29 | Microbial counting cell, microbe counting device using same, and microbe counting method using same |
JP2012531679A JP5684814B2 (ja) | 2010-08-30 | 2011-08-29 | 微生物数測定用セルと、それを用いた微生物数測定装置と、それを用いた微生物数測定方法 |
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CN102884171B (zh) | 2014-08-13 |
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US9139806B2 (en) | 2015-09-22 |
JP5684814B2 (ja) | 2015-03-18 |
EP2612901A4 (en) | 2017-05-17 |
IN2013CN01633A (ja) | 2015-08-21 |
SG182743A1 (en) | 2012-08-30 |
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