WO2017013905A1 - Concentration measurement device and endoscope reprocessor - Google Patents

Concentration measurement device and endoscope reprocessor Download PDF

Info

Publication number
WO2017013905A1
WO2017013905A1 PCT/JP2016/059495 JP2016059495W WO2017013905A1 WO 2017013905 A1 WO2017013905 A1 WO 2017013905A1 JP 2016059495 W JP2016059495 W JP 2016059495W WO 2017013905 A1 WO2017013905 A1 WO 2017013905A1
Authority
WO
WIPO (PCT)
Prior art keywords
measurement
liquid
layer
tank
measurement target
Prior art date
Application number
PCT/JP2016/059495
Other languages
French (fr)
Japanese (ja)
Inventor
寛昌 赤堀
Original Assignee
オリンパス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by オリンパス株式会社 filed Critical オリンパス株式会社
Priority to JP2016546112A priority Critical patent/JP6006465B1/en
Publication of WO2017013905A1 publication Critical patent/WO2017013905A1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/333—Ion-selective electrodes or membranes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems

Definitions

  • the present invention relates to a concentration measuring device using an osmotic membrane and an endoscope reprocessor.
  • Endoscopes used in the medical field are subjected to regeneration processing using chemicals such as cleaning and disinfection after use.
  • An endoscope reprocessor that automatically performs endoscope reproduction processing is also known.
  • Japanese Patent Application Laid-Open No. 2010-57992 discloses an endoscope reprocessor including a concentration measurement device that measures the concentration of a measurement target solution that is a chemical solution used for regeneration processing.
  • a concentration measuring device a device using a permeable membrane that transmits a specific ion in a liquid to be measured is known.
  • the measurement surface which is a part where the permeable membrane is provided, is brought into contact with the liquid to be measured.
  • a concentration measurement device using an osmosis membrane when the measurement surface in contact with the measurement target liquid is in a dry state at the time of concentration measurement, the measurement surface is in contact with the measurement target liquid compared to when the measurement surface is in a wet state. After that, a longer waiting time is required until a correct measurement result is obtained.
  • the present invention solves the above-described problems, and an object thereof is to provide a concentration measuring apparatus and an endoscope reprocessor capable of performing concentration measurement without delay by preventing drying of the osmotic membrane. .
  • a concentration measuring device includes a housing having a recess, an electrode accommodated in the recess, a measurement layer including a measurement surface in contact with a measurement target liquid containing the measurement target, and the measurement surface.
  • An osmosis membrane including an emission layer including an emission surface for emitting an intruding measurement object into the housing, and a dry layer sandwiched between the measurement layer and the emission layer, and enclosing in the housing
  • a measuring unit including an internal liquid connecting the electrode and the osmotic membrane, a main body connecting unit for electrically connecting the electrode to an endoscope reprocessor main body, and penetrating at least the measuring layer
  • a cooling unit that cools the liquid being cooled to a solidification temperature or lower.
  • An endoscope reprocessor holds the housing such that the concentration measuring device, a tank that stores a liquid to be measured, and the permeable membrane are immersed in the liquid to be measured in the tank.
  • a holding unit that performs electrical contact with the main body connection unit.
  • An endoscope reprocessor 1 shown in FIG. 1 is a device that performs a reproduction process on an endoscope.
  • the regeneration treatment here is not particularly limited, and is a rinsing treatment with water, a washing treatment for removing dirt such as organic matter, a disinfection treatment for invalidating predetermined microorganisms, a sterilization treatment for eliminating or killing all microorganisms, Or any combination thereof may be used.
  • upper refers to a position that is further away from the ground relative to the comparison target
  • lower refers to a position that is closer to the ground relative to the comparison target.
  • the height in the following description shall show the height relationship along the gravity direction.
  • the endoscope reprocessor 1 includes a control unit 5, a power supply unit 6, a processing tank 2, a tank 20, a holding unit 20b, and an electrical contact 9 arranged in the endoscope reprocessor main body 1a. It is installed and configured.
  • a measuring unit 80 a of the concentration measuring device 80 is detachably held by the holding unit 20 b in the tank 20, and a main body connecting unit 88 of the concentration measuring device 80 is connected to the electrical contact 9.
  • the control unit 5 can be configured to include an arithmetic device (CPU), a storage device (RAM), an auxiliary storage device, an input / output device, a power control device, and the like, and each part constituting the endoscope reprocessor 1 The operation is controlled based on a predetermined program.
  • the control unit 5 includes a determination unit 5a that executes a determination process described later. The operation of each component included in the endoscope reprocessor 1 in the following description is controlled by the control unit 5 even when not specifically described.
  • the power supply unit 6 supplies power to each part of the endoscope reprocessor 1.
  • the power supply unit 6 distributes electric power obtained from the outside such as a commercial power supply to each part.
  • the power supply unit 6 may include a power generation device or a battery.
  • the treatment tank 2 has a concave shape having an opening, and can store liquid therein.
  • An endoscope (not shown) can be disposed in the processing tank 2.
  • a lid 3 that opens and closes an opening of the processing tank 2 is provided in the upper part of the processing tank 2. When the endoscope is subjected to a regeneration process in the processing tank 2, the opening of the processing tank 2 is closed by the lid 3.
  • the treatment tank 2 is provided with a measurement target liquid nozzle 12, a drain port 11, a circulation port 13, a circulation nozzle 14, a cleaning liquid nozzle 15, an endoscope connection part 16, and an accessory case 17.
  • the measurement target liquid nozzle 12 is an opening that communicates with the tank 20 via the measurement target liquid conduit 26.
  • the tank 20 stores the measurement target liquid 100.
  • a measuring unit 80 a and a water level sensor 55 of the concentration measuring device 80 are arranged. The concentration measuring device 80 and the water level sensor 55 will be described later.
  • the measurement target liquid pipe 26 is provided with a measurement target liquid pump 27. By operating the measurement target liquid pump 27, the measurement target liquid 100 in the tank 20 is transferred into the processing tank 2 via the measurement target liquid conduit 26 and the measurement target liquid nozzle 12.
  • the type of the measurement target liquid 100 stored in the tank 20 is not particularly limited.
  • the measurement target liquid 100 is used for disinfection, such as a peracetic acid-containing liquid containing peracetic acid. Disinfectant.
  • the present invention is not limited to this, and as the measurement target liquid 100, a cleaning liquid used for cleaning processing, a highly volatile solution used for drying, and the like can be appropriately selected according to the purpose.
  • the measurement target liquid 100 is obtained by diluting the stock solution of the measurement target liquid supplied from the measurement target liquid bottle 18 with water at a predetermined ratio.
  • a bottle connection unit 19 that introduces the stock solution of the measurement target liquid supplied from the measurement target liquid bottle 18 into the tank 20, and a dilution pipe 48 that introduces dilution water into the tank 20. Communicating with By connecting the measurement target liquid bottle 18 to the bottle connecting portion 19, the stock solution of the measurement target liquid is introduced into the tank 20.
  • a configuration for introducing water from the dilution pipe 48 into the tank 20 will be described later.
  • the endoscope reprocessor 1 does not have to have a configuration in which the liquid to be measured is diluted with water or the like. Further, when the measurement target liquid is used by mixing a plurality of types of stock solutions, the bottle connection unit 19 can be connected to a plurality of measurement target liquid bottles 18.
  • the measurement target liquid 100 can be reused when the concentration is within a predetermined range having medicinal effects.
  • the tank 20 also serves as a measurement target liquid recovery unit 29 that recovers and stores the measurement target liquid 100 transferred from the tank 20 into the processing tank 2.
  • the tank 20 and the measurement target liquid recovery unit 29 are simply referred to as the tank 20.
  • the tank 20 may be provided separately from the measurement target liquid recovery unit 29.
  • the volume of the tank 20 may be smaller than that of the measurement target liquid recovery unit 29.
  • the tank 20 is provided with a drainage part 28.
  • the drainage unit 28 discharges a liquid to be measured or a liquid such as water from the tank 20.
  • the drainage unit 28 may be configured to discharge the liquid from the tank 20 by gravity, or may be configured to forcibly discharge the liquid from the tank 20 by a pump.
  • the drainage unit 28 includes a drain line 28a that communicates with a drainage port 20a provided at or near the bottom of the tank 20, and a drain valve 28b that opens and closes the drain line 28a.
  • the drain valve 28b may be an electromagnetic opening / closing valve whose opening / closing is controlled by the controller 5, or a cock that is opened / closed by a user's manual operation.
  • the path for discharging the liquid from the tank 20 is not limited to the drain line 28a.
  • the liquid can be discharged from the tank 20 into the processing tank 2 via the measurement target liquid pipe 26 and the measurement target liquid nozzle 12. .
  • the drainage port 11 is an opening provided at the lowest position in the treatment tank 2.
  • the drainage port 11 is connected to the discharge pipe 21.
  • the drain line 21 communicates the drain port 11 and the switching valve 22.
  • a recovery conduit 23 and a waste conduit 25 are connected to the switching valve 22.
  • the switching valve 22 can be switched to a state in which the discharge conduit 21 is closed, a state in which the discharge conduit 21 and the recovery conduit 23 are in communication, or a state in which the discharge conduit 21 and the waste conduit 25 are in communication. .
  • the recovery line 23 communicates the tank 20 and the switching valve 22. Further, a discharge pump 24 is provided in the waste pipe 25. The waste line 25 is connected to a drainage facility for receiving the liquid discharged from the endoscope reprocessor 1.
  • the liquid can be stored in the treatment tank 2. Further, when the measurement target liquid is stored in the processing tank 2, the measurement target liquid is transferred from the processing tank 2 to the tank 20 by setting the switching valve 22 in a state where the discharge pipe 21 and the recovery pipe 23 communicate with each other. Be transported. Further, when the switching valve 22 is in a state where the discharge pipe 21 and the waste pipe 25 are communicated and the operation of the discharge pump 24 is started, the liquid in the processing tank 2 is drained via the waste pipe 25. Is sent out.
  • the circulation port 13 is an opening provided near the bottom surface of the processing tank 2.
  • the circulation port 13 communicates with the circulation conduit 13a.
  • the circulation line 13 a is branched into two lines, that is, an endoscope circulation line 30 and a processing tank circulation line 40.
  • the endoscope circulation line 30 communicates the circulation line 13a with a channel valve 32 described later.
  • a circulation pump 33 is provided in the endoscope circulation conduit 30. The circulation pump 33 operates to transfer the fluid in the endoscope circulation conduit 30 toward the channel valve 32.
  • the channel valve 32 is connected to an intake pipe 34, an alcohol pipe 38, and a delivery pipe 31 in addition to the endoscope circulation pipe 30 described above.
  • the channel valve 32 selectively connects any one of the endoscope circulation conduit 30, the intake conduit 34, and the alcohol conduit 38 to the delivery conduit 31.
  • the intake pipe 34 has one end open to the atmosphere and the other end connected to the channel valve 32. Although not shown, a filter for filtering the passing gas is provided at one end of the intake pipe 34.
  • the air pump 35 is provided in the intake pipe 34 and moves the gas in the intake pipe 34 toward the channel valve 32 by operating.
  • the alcohol pipe line 38 communicates the alcohol tank 37 that stores alcohol and the channel valve 32.
  • Examples of the alcohol stored in the alcohol tank 37 include ethanol. About alcohol concentration, it can select suitably.
  • the alcohol pump 39 is provided in the alcohol pipe line 38 and moves the alcohol in the alcohol tank 37 toward the channel valve 32 by operating.
  • the processing valve 2 can be obtained by setting the channel valve 32 in a state where the delivery pipe line 31 and the endoscope circulation pipe 30 are in communication with each other and the operation of the circulation pump 33 is started.
  • the liquid inside is sent to the delivery line 31 via the circulation port 13, the circulation line 13 a and the endoscope circulation line 30.
  • the channel valve 32 when the channel valve 32 is brought into a state where the delivery line 31 and the intake line 34 are in communication with each other and the operation of the air pump 35 is started, air is sent into the delivery line 31. Further, when the channel valve 32 is brought into a state where the delivery pipe line 31 and the alcohol pipe line 38 are in communication with each other and the operation of the alcohol pump 39 is started, the alcohol in the alcohol tank 37 is fed into the delivery pipe line 31.
  • the delivery pipeline 31 is branched into an endoscope connection pipeline 31b and a case connection pipeline 31c.
  • the endoscope connection pipe line 31 b is connected to the endoscope connection unit 16.
  • the case connection pipe line 31 c is connected to the accessory case 17.
  • the delivery pipe line 31 is provided with a flow path switching unit 31a.
  • the flow path switching unit 31a can switch whether the fluid sent from the channel valve 32 to the delivery pipe line 31 is allowed to flow to the endoscope connection pipe line 31b or the case connection pipe line 31c. In addition, you may control so that the pressure by the side of the endoscope connection pipe line 31b may become fixed at the time of switching.
  • the endoscope connection unit 16 is connected to a base provided in the endoscope through an endoscope tube (not shown).
  • the accessory case 17 is a cage member that accommodates an accessory (not shown) of the endoscope. Therefore, the fluid sent from the channel valve 32 to the delivery pipe line 31 is introduced into the mouthpiece of the endoscope or the accessory case 17.
  • the treatment tank circulation line 40 communicates the circulation line 13a and the circulation nozzle 14 with each other.
  • the circulation nozzle 14 is an opening provided in the processing tank 2.
  • the treatment tank circulation pipe 40 is provided with a fluid pump 41.
  • a three-way valve 42 is provided between the flowing liquid pump 41 and the circulation nozzle 14 in the treatment tank circulation line 40.
  • a water supply pipeline 43 is connected to the three-way valve 42.
  • the three-way valve 42 can be switched to a state where the circulation nozzle 14 and the treatment tank circulation line 40 are communicated with each other or a state where the circulation nozzle 14 and the water supply line 43 are communicated.
  • the water supply pipe 43 communicates the three-way valve 42 and the water supply source connection 46.
  • the water supply pipe 43 is provided with a water introduction valve 45 for opening and closing the water supply pipe 43 and a water filter 44 for filtering water.
  • the water supply source connection unit 46 is connected to a water supply source 49 such as a water supply facility that sends out water through, for example, a hose.
  • a dilution valve 47 is provided in a section of the water supply pipe 43 between the water filter 44 and the three-way valve 42.
  • a dilution pipe 48 that connects the dilution valve 47 and the tank 20 is connected to the dilution valve 47.
  • the dilution valve 47 can be switched between a state in which the water filter 44 and the three-way valve 42 are in communication with each other, or a state in which the water filter 44 and the dilution pipe 48 are in communication with each other.
  • the three-way valve 42 When liquid is stored in the treatment tank 2, the three-way valve 42 is in a state where the circulation nozzle 14 and the treatment tank circulation pipe 40 are in communication, and the dilution valve 47 is in communication with the water filter 44 and the three-way valve 42. If the operation of the fluid pump 41 is started as a state, the liquid in the treatment tank 2 is discharged from the circulation nozzle 14 via the circulation port 13, the circulation line 13 a and the treatment tank circulation line 40.
  • the dilution valve 47 is in a state in which the water filter 44 and the three-way valve 42 are in communication, and the water introduction valve 45 is opened.
  • the water supplied from the water supply source 49 is discharged from the circulation nozzle 14.
  • the liquid discharged from the circulation nozzle 14 is introduced into the processing tank 2.
  • the cleaning liquid nozzle 15 is an opening communicating with the cleaning liquid tank 50 for storing the cleaning liquid through the cleaning liquid pipe 51.
  • the cleaning liquid is used for the cleaning process.
  • a cleaning liquid pump 52 is provided in the cleaning liquid pipe 51. By operating the cleaning liquid pump 52, the cleaning liquid in the cleaning liquid tank 50 is transferred into the processing tank 2.
  • the endoscope reprocessor 1 includes an operation unit 7 and an output unit 8 that constitute a user interface that exchanges information with a user.
  • the operation unit 7 and the output unit 8 are electrically connected to the control unit 5.
  • the operation unit 7 includes operation members such as a push switch and a touch sensor.
  • the output unit 8 includes, for example, a display device that displays images and characters, a light emitting device that emits light, a speaker that emits sound, or a combination thereof.
  • the operation unit 7 and the output unit 8 may be provided in an electronic device that performs wireless communication with the control unit 5.
  • the tank 20 is provided with a concentration measuring device 80 and a water level sensor 55.
  • the tank 20 can store the liquid to be measured up to the second water level L2 higher than the predetermined first water level L1.
  • the tank 20 includes a holding unit 20b that detachably holds the measuring unit 80a of the concentration measuring device 80.
  • the concentration measuring device 80 measures the concentration of the measurement target contained in the measurement target liquid 100 in contact with the measurement surface 86a of the measurement unit 80a.
  • the concentration measuring device 80 measures the concentration of peracetic acid ions that are the measurement target contained in the measurement target liquid 100.
  • the concentration measuring device 80 includes a measuring unit 80a and a cooling unit 90.
  • the measurement unit 80 a includes a housing 81, an electrode 84, a main body connection unit 88, a permeable membrane 86 and an internal liquid 83.
  • the housing 81 is a container-like member provided with a recess 81a.
  • a plurality of electrodes 84 are spaced apart from each other inside the recess 81a.
  • the plurality of electrodes 84 are electrically connected to the electrical contacts 9 of the endoscope reprocessor 1a via the electric cable 87 and the main body connecting portion 88. That is, the concentration measuring device 80 is electrically connected to the control unit 5 of the endoscope reprocessor 1.
  • the control device of the concentration measuring device 80 is included in the control unit 5.
  • the electrical contact 9 and the holding portion 20b are provided apart from each other, but the electrical contact 9 may be provided so as to be exposed from the holding portion 20b.
  • the main body connecting portion 88 is provided at a location where the main body connecting portion 88 contacts the electrical contact 9 provided on the holding portion 20b of the concentration measuring device 80.
  • the opening of the recess 81 a is covered with a permeable membrane 86.
  • an internal liquid 83 is stored inside the recess 81a.
  • the discharge surface 86 b exposed inside the recess 81 a of the osmotic membrane 86 is in contact with the internal liquid 83.
  • the plurality of electrodes 84 are immersed in the internal liquid 83 in the recess 81a.
  • the measurement surface 86a is the surface of the osmotic membrane 86 opposite to the discharge surface 86b. That is, when the concentration measuring device 80 measures the concentration of the measurement target liquid 100, the osmotic membrane 86 is a member arranged so as to separate the internal liquid 83 and the measurement target liquid 100.
  • FIG. 3 is a diagram schematically showing a state where the measurement target passes through the osmotic membrane 86.
  • FIG. 3 shows a case where the measurement target liquid 100 is in contact with the measurement surface 86a and the measurement surface 86a side of the osmotic membrane 86 is in a wet state. Further, in the state shown in FIG. 3, the concentration of the measurement target in the measurement target liquid 100 is higher than the concentration of the measurement target in the internal liquid 83.
  • the osmotic membrane 86 is a porous membrane that does not allow liquid molecules to pass but allows gas molecules to pass.
  • a release layer 86c including a release surface 86a in contact with the internal liquid 83
  • a measurement layer 86d including a measurement surface 86a in contact with the measurement target liquid 100
  • Layer 86e is present.
  • the internal liquid 83 Since the internal liquid 83 is always stored in the recess 81a, the internal liquid 83 permeates the release layer 86c. Further, the measurement target liquid 100 penetrates into the measurement layer 86d. The measurement target in the measurement target liquid 100 penetrating into the measurement layer 86d becomes a gas molecule, passes through the dry layer 86e, and then dissolves in the internal liquid 83 penetrating into the release layer 86c. Then, the measurement object dissolved in the internal liquid 83 is discharged from the discharge surface 86a into the internal liquid 83 in the recess 81a.
  • the concentration of the measurement target in the internal liquid 83 is higher than the concentration of the measurement target in the measurement target liquid 100, the measurement target in the internal liquid 83 passes through the osmotic membrane 86. It moves into the liquid 100 to be measured.
  • the measurement layer 86d when the measurement layer 86d is in a wet state and the measurement target liquid 100 is in contact with the measurement surface 86a, the measurement layer 86d is in contact with the measurement target liquid 100 in contact with the measurement surface 86a.
  • the concentration of the measurement target in the internal liquid 83 changes.
  • the potential difference generated between the plurality of electrodes 84 or the current value flowing between the pair of electrodes 84 changes.
  • the internal liquid 83 is disposed between the electrode 84 and the osmotic membrane 86 inside the recess 81 a of the housing 81 of the concentration measuring device 80, and the electrode 84 and the osmotic membrane 86 are connected by the internal liquid 83. It is in the state.
  • “connect” refers to a state in which ions to be measured that have passed through the osmotic membrane 86 and reached the internal liquid 83 can reach the electrode 84 using the internal liquid 83 as a medium.
  • the concentration measuring device 80 measures a change in potential difference generated between the plurality of electrodes 84 of the measurement unit 80a or a change in a current value flowing between the plurality of electrodes 84, and is in contact with the measurement surface 86a based on the measured value.
  • the concentration of the measurement target in the measurement target liquid 100 is measured. Since the principle and configuration of concentration measurement in such a concentration measuring apparatus 80 are well known, detailed description thereof will be omitted.
  • the holding portion 20b of the tank 20 detachably holds the housing 81 in the tank 20 so that the measurement surface 86a of the osmotic membrane 86 contacts the measurement target liquid 100.
  • the measurement surface 86a of the concentration measuring device 80 held by the holding unit 20b is disposed at a predetermined first water level L1 in the tank 20. Accordingly, if the measurement target liquid 100 is stored up to a predetermined first water level L1 or higher in the tank 20, the osmotic membrane 86 is immersed in the measurement target liquid 100, and the measurement target liquid 100 comes into contact with the measurement surface 86a.
  • a part of the housing 81 held by the holding portion 20 b may be exposed outside the tank 20.
  • the water level sensor 55 detects the height of the liquid level stored in the tank 20.
  • the water level sensor 55 is electrically connected to the control unit 5 and outputs detection result information to the control unit 5.
  • the water level sensor 55 detects at least whether or not the liquid level in the tank 20 has reached the first water level L1.
  • the water level sensor 55 when mixing the stock solution of the measurement target liquid supplied from the measurement target liquid bottle 18 and the water supplied from the dilution pipe in the tank 20, sets the volume ratio of both to a predetermined value. May be used.
  • the configuration of the water level sensor 55 is not particularly limited.
  • the water level sensor 55 includes, for example, a plurality of electrodes that are spaced apart from each other, and based on the presence or absence of electrical continuity between the plurality of electrodes that varies depending on whether or not the plurality of electrodes are submerged in the liquid.
  • a so-called electrode-type water level sensor that detects whether or not the liquid level has reached a predetermined water level may be used.
  • the water level sensor 55 detects whether or not the liquid level of the measurement target liquid has reached a predetermined water level based on the operating state of a switch that opens and closes according to the vertical movement of the float floating in the measurement target liquid.
  • a so-called float type water level sensor may be used.
  • the cooling unit 90 cools the liquid penetrating at least the measurement layer 86d of the osmotic membrane 86 to a solidification temperature or lower.
  • the cooling unit 90 is electrically connected to the control unit 5. The operation of the cooling unit 90 is controlled by the control unit 5.
  • the cooling unit 90 may be configured to cool the liquid that has permeated the measurement layer 86d to, for example, the solidification temperature or lower by cooling a member that is in direct contact with the measurement layer 86d.
  • the configuration may be such that the liquid that permeates the measurement layer 86d is cooled to a solidification temperature or lower by cooling the gas that contacts the measurement surface 86b of the film 86.
  • the cooling unit 90 includes a Peltier element 91, and cools the liquid penetrating the measurement layer 86d by driving the Peltier element 91.
  • the cooling unit 90 of the present embodiment includes a heat transfer unit 92 that transfers heat from the measurement layer 86 d to the Peltier element 91.
  • the heat transfer section 92 connects the liquid that has permeated the measurement layer 86d and the heat absorption section of the Peltier element 91.
  • the heat transfer unit 92 is a metal mesh member that contacts the measurement surface 86d.
  • the mesh-like member is not limited to a member in a form in which a linear member is knitted, and includes a member in a form in which a plurality of through holes are provided in a plate-like member.
  • the material constituting the heat transfer section 92 is preferably a material that has corrosion resistance to the liquid 100 to be measured, such as stainless steel, and has high thermal conductivity. As shown in FIG. 2, the heat transfer unit 92 may be disposed in contact with the measurement surface 86 b or may be embedded in the measurement layer 91. Since the heat transfer part 92 has a structure in which a liquid passage part such as a mesh is formed, it does not hinder the permeation of the osmotic membrane 86 to be measured.
  • the Peltier element 91 By driving the Peltier element 91, the heat of the measurement layer 86 d is transmitted through the heat transfer section 92 and released from the heat generating section of the Peltier element 91. If the Peltier element 91 is driven when a liquid 100 such as the measurement target liquid 100 or water penetrates the measurement layer 86d of the osmotic membrane 86, the liquid penetrating the measurement layer 86d is cooled to below the solidification temperature and solidified. To do.
  • the concentration measuring device 80 configured as described above penetrates the measurement layer 86d by driving the cooling unit 90 continuously or intermittently while the measurement surface 86b of the osmotic membrane 86 is exposed to the air.
  • the liquid is cooled and solidified.
  • the timing of a cooling start is not specifically limited, It is preferable to start cooling before the measurement surface 86b is exposed in the air and in the stage immersed in the liquid.
  • a dry layer 86e containing a gas is interposed between the measurement layer 86d and the release layer 86c. Due to the presence of the dry layer 86e, the heat transfer rate between the measurement layer 86d and the release layer 86c is reduced, and therefore, when the measurement layer 86d is cooled by the cooling unit 90, the temperature drop of the internal liquid 83 is prevented, The temperature of the internal liquid 83 can be kept within a temperature range in which concentration measurement can be performed.
  • the liquid penetrating the measurement layer 86d when driving the cooling unit 90 is not limited to the measurement target liquid 100, and may be water.
  • the liquid penetrating the measurement layer 86 d is the measurement target liquid 100.
  • the water supplied from the water supply source 49 is introduced into the tank 20 and the inside of the tank 20 is rinsed.
  • the liquid penetrating into the water is water.
  • the concentration measuring device 80 stops the cooling unit 90 when performing concentration measurement. As described above, since only the liquid that permeates the measurement layer 86d of the membrane-like osmotic membrane 86 is solidified by the driving of the cooling unit 90, the amount of heat necessary to melt the liquid is small. is there.
  • the measurement surface 86b of the osmotic membrane 86 is in a wet state where concentration measurement by the concentration measurement device 80 can be performed.
  • the concentration measuring device 80 of the present embodiment allows the liquid permeating the measurement layer 86d by driving the cooling unit 90 when the measurement surface 86b is exposed to the air. By solidifying, the evaporation of the liquid from the measurement layer 86d can be prevented, and the amount of water in the measurement layer 86d can be maintained. Therefore, the concentration measuring apparatus 80 of the present embodiment can execute the concentration measurement of the measurement target liquid 100 without delay by preventing the osmotic membrane 86 from drying.
  • the water level sensor 55 detects that the liquid is not stored up to the first water level L1 in the tank 20. That is.
  • control unit 5 of the endoscope reprocessor 1 of the present embodiment uses the cooling unit 90 when the water level sensor 55 detects that no liquid is stored up to the first water level L1 in the tank 20.
  • the cooling unit 90 is controlled to stop.
  • the endoscope reprocessor 1 of the present embodiment can prevent the drying of the osmotic membrane 86 of the concentration measuring device 80 and execute the concentration measurement of the measurement target liquid 100 without delay.
  • the measurement target liquid 100 when the measurement target liquid 100 is discharged from the tank 20 on the weekend and a new measurement target liquid unused on weekdays is supplied into the tank 20, the measurement target liquid 100 remains in the tank 20 for a long period of time. Even if the measurement surface 86b of the osmotic membrane 86 does not exist and is exposed to the air for a long time, the measurement target liquid 100 is supplied into the tank 20 in the endoscope reprocessor 1 of the present embodiment. Later, the concentration measurement of the measurement target liquid 100 by the concentration measuring device 80 can be performed without delay, and the subsequent regeneration process can be started.
  • the concentration measuring device 80 of the present embodiment may include a heat transfer unit that transfers the heat of the heat generation unit of the Peltier element 91 to the internal liquid 83 in the housing 81.
  • the concentration measuring device 80 of the present embodiment may include a heat transfer unit that transfers the heat of the heat generation unit of the Peltier element 91 to the internal liquid 83 in the housing 81.
  • the Peltier element 91 by driving the Peltier element 91, the liquid penetrating the measurement layer 86d can be cooled and solidified, and the internal liquid 83 can be prevented from being lowered by applying heat to the internal liquid 83.
  • the cooling unit 90 of this embodiment includes a heat pump 93.
  • the heat pump 93 moves heat from the heat absorbing portion 93f to the heat generating portion 93g using a heat medium.
  • the heat absorption part 93f is in contact with the heat transfer part 92 that transfers heat from the measurement layer 86d to the Peltier element 91.
  • the endothermic portion 93f may be in contact with the measurement surface 86b of the osmotic membrane 86, or may be embedded in the measurement layer 86d of the osmotic membrane 86. Also good.
  • the heat generating part 93g transmits heat to the internal liquid 83.
  • the heat generating portion 93 g is disposed in the recess 81 a of the housing 81.
  • the heat generating part 93g is disposed outside the housing 81, and the heat of the heat generating part 83g is transmitted to the internal liquid 83 via the heat transfer part contacting the heat generating part 83g and the internal liquid 83. May be.
  • the heat pump 93 includes an evaporator 93a disposed in the heat absorbing section 93f, a condenser 93b disposed in the heat generating section 93g, a compressor 93c that connects the evaporator 93a and the condenser 93b, and an expansion valve 93d that connects the condenser 93b and the evaporator 93a. Is provided. Since the heat pump 93 is a well-known technique, a detailed description thereof is omitted.
  • the heat of the measurement layer 86d is transmitted to the internal liquid 83 through the heat transfer section 92 and the heat pump 93 by driving the heat pump 93.
  • the concentration measuring device 80 of the present embodiment cools and solidifies the liquid permeating the measurement layer 86d by driving the heat pump 93, and applies heat to the internal liquid 83 to thereby increase the temperature of the internal liquid 83. Can be prevented, and the temperature of the internal liquid 83 can be reliably maintained within a temperature range in which concentration measurement can be performed.
  • the operations of the concentration measuring device 80 and the endoscope reprocessor 1 are the same as those in the first embodiment. Therefore, when the measurement surface 86b is exposed to the air, the concentration measurement device 80 and the endoscope reprocessor 1 according to this embodiment penetrate the measurement layer 86d by driving the cooling unit 90. The liquid can be solidified to prevent evaporation of the liquid from the measurement layer 86d, and the amount of water in the measurement layer 86d can be maintained. Therefore, the concentration measuring apparatus 80 of the present embodiment can execute the concentration measurement of the measurement target liquid 100 without delay by preventing the osmotic membrane 86 from drying.
  • the present invention it is possible to realize a concentration measuring device and an endoscope reprocessor capable of preventing concentration of a osmotic membrane and performing concentration measurement without delay.

Abstract

This concentration measurement device comprises: a measurement unit; a body connection part; and a cooling unit. The measurement unit includes: a housing having a recess; an electrode that is accommodated inside the recess; an osmosis membrane that covers the recess and includes a measurement layer having a measurement surface that contacts a liquid to be measured that contains a measurement target, an emission layer having an emission surface from which the measurement target that has penetrated from the measurement surface is emitted into the housing, and a dry layer that is interposed between the measurement layer and the emission layer; and an internal liquid that is sealed inside the housing and links the electrode and the osmosis membrane. The body connection part is for electrically connecting the electrode to an endoscope reprocessor body. The cooling unit cools at least a liquid that has penetrated to the measurement layer to at least the solidification temperature.

Description

濃度測定装置および内視鏡リプロセッサConcentration measuring device and endoscope reprocessor
　本発明は、浸透膜を用いた濃度測定装置および内視鏡リプロセッサに関する。 The present invention relates to a concentration measuring device using an osmotic membrane and an endoscope reprocessor.
　医療分野において使用される内視鏡は、使用後に洗浄処理及び消毒処理等の薬液を用いた再生処理が施される。また、内視鏡の再生処理を自動的に行う内視鏡リプロセッサが知られている。例えば、特開２０１０－５７７９２号公報には、再生処理に用いる薬液である測定対象液の濃度を測定する濃度測定装置を備えた内視鏡リプロセッサが開示されている。 Endoscopes used in the medical field are subjected to regeneration processing using chemicals such as cleaning and disinfection after use. An endoscope reprocessor that automatically performs endoscope reproduction processing is also known. For example, Japanese Patent Application Laid-Open No. 2010-57992 discloses an endoscope reprocessor including a concentration measurement device that measures the concentration of a measurement target solution that is a chemical solution used for regeneration processing.
　濃度測定装置には、測定対象液中の特定のイオンを透過する浸透膜を用いた形態のものが知られている。この形態の濃度測定装置を用いて測定対象液の濃度を測定する場合には、浸透膜が設けられた部位である測定面を測定対象液に接触させる。 As a concentration measuring device, a device using a permeable membrane that transmits a specific ion in a liquid to be measured is known. When measuring the concentration of the liquid to be measured using the concentration measuring apparatus of this embodiment, the measurement surface, which is a part where the permeable membrane is provided, is brought into contact with the liquid to be measured.
　浸透膜を用いた濃度測定装置は、濃度測定時において測定対象液と接する測定面が乾燥した状態であると、測定面が湿潤状態である場合に比して、測定面が測定対象液に接してから正しい測定結果が得られるようになるまでにより長い待機時間が必要となる。 In a concentration measurement device using an osmosis membrane, when the measurement surface in contact with the measurement target liquid is in a dry state at the time of concentration measurement, the measurement surface is in contact with the measurement target liquid compared to when the measurement surface is in a wet state. After that, a longer waiting time is required until a correct measurement result is obtained.
　本発明は、上述した問題点を解決するものであって、浸透膜の乾燥を防止して遅滞なく濃度測定の実行が可能な濃度測定装置および内視鏡リプロセッサを提供することを目的とする。 The present invention solves the above-described problems, and an object thereof is to provide a concentration measuring apparatus and an endoscope reprocessor capable of performing concentration measurement without delay by preventing drying of the osmotic membrane. .
　本発明の一態様による濃度測定装置は、くぼみを有するハウジングと、前記くぼみの中に収容された電極と、測定対象を含有した測定対象液に接触する測定面を含む測定層、前記測定面から侵入した測定対象を前記ハウジング内に放出する放出面を含む放出層、ならびに、前記測定層および前記放出層に挟まれた乾燥層、を含み、前記くぼみを覆う浸透膜と、前記ハウジング内に封入されて、前記電極と前記浸透膜とをつなぐ内部液と、を含む測定部と、前記電極を内視鏡リプロセッサ本体に電気的に接続するための本体接続部と、少なくとも前記測定層に浸透している液体を凝固温度以下まで冷却する冷却部と、を含む。 A concentration measuring device according to an aspect of the present invention includes a housing having a recess, an electrode accommodated in the recess, a measurement layer including a measurement surface in contact with a measurement target liquid containing the measurement target, and the measurement surface. An osmosis membrane including an emission layer including an emission surface for emitting an intruding measurement object into the housing, and a dry layer sandwiched between the measurement layer and the emission layer, and enclosing in the housing A measuring unit including an internal liquid connecting the electrode and the osmotic membrane, a main body connecting unit for electrically connecting the electrode to an endoscope reprocessor main body, and penetrating at least the measuring layer A cooling unit that cools the liquid being cooled to a solidification temperature or lower.
　また、本発明の一態様による内視鏡リプロセッサは、前記濃度測定装置と、測定対象液を貯留するタンクと、前記浸透膜が前記タンクの前記測定対象液に浸漬するように前記ハウジングを保持する保持部と、前記本体接続部に接続される電気接点と、を備える。 An endoscope reprocessor according to an aspect of the present invention holds the housing such that the concentration measuring device, a tank that stores a liquid to be measured, and the permeable membrane are immersed in the liquid to be measured in the tank. A holding unit that performs electrical contact with the main body connection unit.
第１の実施形態の内視鏡リプロセッサの構成を示す図である。It is a figure which shows the structure of the endoscope reprocessor of 1st Embodiment. 第１の実施形態のタンクおよび濃度測定装置の構成を示す図である。It is a figure which shows the structure of the tank and density | concentration measuring apparatus of 1st Embodiment. 浸透膜の断面を模式的に示した図である。It is the figure which showed the cross section of the permeable membrane typically. 第２の実施形態の濃度測定装置の構成を示す図である。It is a figure which shows the structure of the density | concentration measuring apparatus of 2nd Embodiment.
　以下に、本発明の好ましい形態について図面を参照して説明する。なお、以下の説明に用いる各図においては、各構成要素を図面上で認識可能な程度の大きさとするため、構成要素毎に縮尺を異ならせてあるものであり、本発明は、これらの図に記載された構成要素の数量、構成要素の形状、構成要素の大きさの比率、および各構成要素の相対的な位置関係のみに限定されるものではない。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the drawings used for the following description, the scale of each component is made different in order to make each component recognizable on the drawing. It is not limited only to the quantity of the component described in (1), the shape of the component, the ratio of the size of the component, and the relative positional relationship of each component.
（第１の実施形態）　
　以下に、本発明の実施形態の一例を説明する。図１に示す内視鏡リプロセッサ１は、内視鏡に対して、再生処理を施す装置である。ここでいう再生処理とは特に限定されるものではなく、水によるすすぎ処理、有機物等の汚れを落とす洗浄処理、所定の微生物を無効化する消毒処理、全ての微生物を排除もしくは死滅させる滅菌処理、またはこれらの組み合わせ、のいずれであってもよい。 (First embodiment)
Hereinafter, an example of an embodiment of the present invention will be described. An endoscope reprocessor 1 shown in FIG. 1 is a device that performs a reproduction process on an endoscope. The regeneration treatment here is not particularly limited, and is a rinsing treatment with water, a washing treatment for removing dirt such as organic matter, a disinfection treatment for invalidating predetermined microorganisms, a sterilization treatment for eliminating or killing all microorganisms, Or any combination thereof may be used.
　なお、以下の説明において、上方とは比較対象に対してより地面から遠ざかった位置のことを指し、下方とは比較対象に対してより地面に近づいた位置のことを指す。また、以下の説明における高低とは、重力方向に沿った高さ関係を示すものとする。 In the following description, “upper” refers to a position that is further away from the ground relative to the comparison target, and “lower” refers to a position that is closer to the ground relative to the comparison target. Moreover, the height in the following description shall show the height relationship along the gravity direction.
　内視鏡リプロセッサ１は、内視鏡リプロセッサ１は、内視鏡リプロセッサ本体部１ａに、制御部５、電源部６、処理槽２、タンク２０、保持部２０ｂおよび電気接点９が配設されて構成されている。また、タンク２０には、濃度測定装置８０の測定部８０ａが保持部２０ｂによって着脱可能に保持されており、電気接点９には、濃度測定装置８０の本体接続部８８が接続されている。 In the endoscope reprocessor 1, the endoscope reprocessor 1 includes a control unit 5, a power supply unit 6, a processing tank 2, a tank 20, a holding unit 20b, and an electrical contact 9 arranged in the endoscope reprocessor main body 1a. It is installed and configured. In addition, a measuring unit 80 a of the concentration measuring device 80 is detachably held by the holding unit 20 b in the tank 20, and a main body connecting unit 88 of the concentration measuring device 80 is connected to the electrical contact 9.
　制御部５は、演算装置（ＣＰＵ）、記憶装置（ＲＡＭ）、補助記憶装置、入出力装置および電力制御装置等を具備して構成することができ、内視鏡リプロセッサ１を構成する各部位の動作を、所定のプログラムに基づいて制御する構成を有している。制御部５は、後述する判定処理を実行する判定部５ａを含む。以下の説明における内視鏡リプロセッサ１に含まれる各構成の動作は、特に記載がない場合であっても制御部５によって制御される。 The control unit 5 can be configured to include an arithmetic device (CPU), a storage device (RAM), an auxiliary storage device, an input / output device, a power control device, and the like, and each part constituting the endoscope reprocessor 1 The operation is controlled based on a predetermined program. The control unit 5 includes a determination unit 5a that executes a determination process described later. The operation of each component included in the endoscope reprocessor 1 in the following description is controlled by the control unit 5 even when not specifically described.
　電源部６は、内視鏡リプロセッサ１の各部位に電力を供給する。電源部６は、商用電源等の外部から得た電力を各部位に分配する。なお、電源部６は、発電装置やバッテリーを備えていてもよい。 The power supply unit 6 supplies power to each part of the endoscope reprocessor 1. The power supply unit 6 distributes electric power obtained from the outside such as a commercial power supply to each part. Note that the power supply unit 6 may include a power generation device or a battery.
　処理槽２は、開口部を有する凹形状であり、内部に液体を貯留することが可能である。処理槽２内には、図示しない内視鏡を配置することができる。本実施形態では一例として、処理槽２の上部には、処理槽２の開口部を開閉する蓋３が設けられている。処理槽２内において内視鏡に再生処理を施す場合には、処理槽２の開口部は蓋３によって閉じられる。 The treatment tank 2 has a concave shape having an opening, and can store liquid therein. An endoscope (not shown) can be disposed in the processing tank 2. In the present embodiment, as an example, a lid 3 that opens and closes an opening of the processing tank 2 is provided in the upper part of the processing tank 2. When the endoscope is subjected to a regeneration process in the processing tank 2, the opening of the processing tank 2 is closed by the lid 3.
　処理槽２には、測定対象液ノズル１２、排液口１１、循環口１３、循環ノズル１４、洗浄液ノズル１５、内視鏡接続部１６および付属品ケース１７が設けられている。 The treatment tank 2 is provided with a measurement target liquid nozzle 12, a drain port 11, a circulation port 13, a circulation nozzle 14, a cleaning liquid nozzle 15, an endoscope connection part 16, and an accessory case 17.
　測定対象液ノズル１２は、測定対象液管路２６を介してタンク２０に連通する開口部である。タンク２０は、測定対象液１００を貯留する。タンク２０内には、濃度測定装置８０の測定部８０ａおよび水位センサ５５が配置されている。濃度測定装置８０および水位センサ５５については後述する。 The measurement target liquid nozzle 12 is an opening that communicates with the tank 20 via the measurement target liquid conduit 26. The tank 20 stores the measurement target liquid 100. In the tank 20, a measuring unit 80 a and a water level sensor 55 of the concentration measuring device 80 are arranged. The concentration measuring device 80 and the water level sensor 55 will be described later.
　測定対象液管路２６には、測定対象液ポンプ２７が設けられている。測定対象液ポンプ２７を運転することにより、タンク２０内の測定対象液１００が、測定対象液管路２６および測定対象液ノズル１２を経由して、処理槽２内に移送される。 The measurement target liquid pipe 26 is provided with a measurement target liquid pump 27. By operating the measurement target liquid pump 27, the measurement target liquid 100 in the tank 20 is transferred into the processing tank 2 via the measurement target liquid conduit 26 and the measurement target liquid nozzle 12.
　タンク２０が貯留する測定対象液１００の種類は特に限定されるものではないが、本実施形態では一例として、測定対象液１００は消毒処理に用いられる例えば過酢酸を含有する過酢酸含有液等の消毒液である。ただし、本発明はこれに限定されず、測定対象液１００として、洗浄処理に用いられる洗浄液、乾燥に用いられる高揮発性溶液等を目的に応じて適宜選択することができる。 The type of the measurement target liquid 100 stored in the tank 20 is not particularly limited. In the present embodiment, as an example, the measurement target liquid 100 is used for disinfection, such as a peracetic acid-containing liquid containing peracetic acid. Disinfectant. However, the present invention is not limited to this, and as the measurement target liquid 100, a cleaning liquid used for cleaning processing, a highly volatile solution used for drying, and the like can be appropriately selected according to the purpose.
　また、本実施形態では一例として、測定対象液１００は、測定対象液ボトル１８から供給された測定対象液の原液を、水によって所定の比率で希釈したものである。本実施形態のタンク２０は、測定対象液ボトル１８から供給された測定対象液の原液をタンク２０内に導入するボトル接続部１９、および希釈用の水をタンク２０内に導入する希釈管路４８に連通している。測定対象液ボトル１８がボトル接続部１９に接続されることにより、測定対象液の原液がタンク２０内に導入される。希釈管路４８からタンク２０内に水を導入する構成については後述する。 Further, as an example in the present embodiment, the measurement target liquid 100 is obtained by diluting the stock solution of the measurement target liquid supplied from the measurement target liquid bottle 18 with water at a predetermined ratio. In the tank 20 of the present embodiment, a bottle connection unit 19 that introduces the stock solution of the measurement target liquid supplied from the measurement target liquid bottle 18 into the tank 20, and a dilution pipe 48 that introduces dilution water into the tank 20. Communicating with By connecting the measurement target liquid bottle 18 to the bottle connecting portion 19, the stock solution of the measurement target liquid is introduced into the tank 20. A configuration for introducing water from the dilution pipe 48 into the tank 20 will be described later.
　なお、内視鏡リプロセッサ１は、測定対象液を水等によって希釈する構成を有していなくともよい。また、測定対象液が複数種類の原液を混合して使用されるものである場合には、ボトル接続部１９は複数の測定対象液ボトル１８に接続可能である。 Note that the endoscope reprocessor 1 does not have to have a configuration in which the liquid to be measured is diluted with water or the like. Further, when the measurement target liquid is used by mixing a plurality of types of stock solutions, the bottle connection unit 19 can be connected to a plurality of measurement target liquid bottles 18.
　また、本実施形態では一例として、測定対象液１００は、濃度が薬効を有する所定の範囲内である場合には、再使用可能である。タンク２０は、タンク２０内から処理槽２内に移送された測定対象液１００を回収して再び貯留する測定対象液回収部２９を兼ねる。以下の説明において、タンク２０と測定対象液回収部２９とを区別しない場合には、単にタンク２０と称する。 In the present embodiment, as an example, the measurement target liquid 100 can be reused when the concentration is within a predetermined range having medicinal effects. The tank 20 also serves as a measurement target liquid recovery unit 29 that recovers and stores the measurement target liquid 100 transferred from the tank 20 into the processing tank 2. In the following description, when the tank 20 and the measurement target liquid recovery unit 29 are not distinguished, they are simply referred to as the tank 20.
　なお、タンク２０は、測定対象液回収部２９とは別に設けられていてもよい。タンク２０が測定対象液回収部２９とは異なる構成である場合には、タンク２０の容積は、測定対象液回収部２９よりも小さくてもよい。 The tank 20 may be provided separately from the measurement target liquid recovery unit 29. When the tank 20 is configured differently from the measurement target liquid recovery unit 29, the volume of the tank 20 may be smaller than that of the measurement target liquid recovery unit 29.
　また、タンク２０には、排液部２８が配設されている。排液部２８は、タンク２０内から測定対象液または水等の液体を排出する。排液部２８は、重力によってタンク２０内から液体を排出する構成であってもよいし、ポンプによって強制的にタンク２０内から液体を排出する構成であってもよい。 Further, the tank 20 is provided with a drainage part 28. The drainage unit 28 discharges a liquid to be measured or a liquid such as water from the tank 20. The drainage unit 28 may be configured to discharge the liquid from the tank 20 by gravity, or may be configured to forcibly discharge the liquid from the tank 20 by a pump.
　本実施形態では一例として、排液部２８は、タンク２０の底面または底面付近に設けられた排液口２０ａに連通するドレーン管路２８ａと、ドレーン管路２８ａを開閉するドレーンバルブ２８ｂと、を含む。ドレーンバルブ２８ｂは、制御部５によって開閉の制御がなされる電磁開閉弁であってもよいし、使用者の手動操作によって開閉が行われるコックであってもよい。 In the present embodiment, as an example, the drainage unit 28 includes a drain line 28a that communicates with a drainage port 20a provided at or near the bottom of the tank 20, and a drain valve 28b that opens and closes the drain line 28a. Including. The drain valve 28b may be an electromagnetic opening / closing valve whose opening / closing is controlled by the controller 5, or a cock that is opened / closed by a user's manual operation.
　なお、タンク２０内から液体を排出する経路は、ドレーン管路２８ａのみに限られない。例えば、測定対象液ポンプ２７の運転を開始することによって、測定対象液管路２６および測定対象液ノズル１２を経由して、タンク２０内から液体を処理槽２内に排出することも可能である。 It should be noted that the path for discharging the liquid from the tank 20 is not limited to the drain line 28a. For example, by starting the operation of the measurement target liquid pump 27, the liquid can be discharged from the tank 20 into the processing tank 2 via the measurement target liquid pipe 26 and the measurement target liquid nozzle 12. .
　排液口１１は、処理槽２内の最も低い箇所に設けられた開口部である。排液口１１は、排出管路２１に接続されている。排出管路２１は、排液口１１と切替バルブ２２とを連通している。切替バルブ２２には、回収管路２３および廃棄管路２５が接続されている。切替バルブ２２は、排出管路２１を閉塞した状態、排出管路２１と回収管路２３とを連通した状態、または排出管路２１と廃棄管路２５とを連通した状態、に切り替え可能である。 The drainage port 11 is an opening provided at the lowest position in the treatment tank 2. The drainage port 11 is connected to the discharge pipe 21. The drain line 21 communicates the drain port 11 and the switching valve 22. A recovery conduit 23 and a waste conduit 25 are connected to the switching valve 22. The switching valve 22 can be switched to a state in which the discharge conduit 21 is closed, a state in which the discharge conduit 21 and the recovery conduit 23 are in communication, or a state in which the discharge conduit 21 and the waste conduit 25 are in communication. .
　回収管路２３は、タンク２０と切替バルブ２２とを連通している。また、廃棄管路２５には排出ポンプ２４が設けられている。廃棄管路２５は、内視鏡リプロセッサ１から排出される液体を受け入れるための排液設備に接続される。 The recovery line 23 communicates the tank 20 and the switching valve 22. Further, a discharge pump 24 is provided in the waste pipe 25. The waste line 25 is connected to a drainage facility for receiving the liquid discharged from the endoscope reprocessor 1.
　切替バルブ２２を閉状態とすれば、処理槽２内に液体を貯留することができる。また、処理槽２内に測定対象液が貯留されている時に、切替バルブ２２を排出管路２１と回収管路２３とが連通した状態とすれば、測定対象液が処理槽２からタンク２０に移送される。また、切替バルブ２２を排出管路２１と廃棄管路２５とが連通した状態とし、排出ポンプ２４の運転を開始すれば、処理槽２内の液体が廃棄管路２５を経由して排液設備に送出される。 If the switching valve 22 is closed, the liquid can be stored in the treatment tank 2. Further, when the measurement target liquid is stored in the processing tank 2, the measurement target liquid is transferred from the processing tank 2 to the tank 20 by setting the switching valve 22 in a state where the discharge pipe 21 and the recovery pipe 23 communicate with each other. Be transported. Further, when the switching valve 22 is in a state where the discharge pipe 21 and the waste pipe 25 are communicated and the operation of the discharge pump 24 is started, the liquid in the processing tank 2 is drained via the waste pipe 25. Is sent out.
　循環口１３は、処理槽２の底面付近に設けられた開口部である。循環口１３は、循環管路１３ａに連通している。循環管路１３ａは、内視鏡循環管路３０および処理槽循環管路４０の二つの管路に分岐している。 The circulation port 13 is an opening provided near the bottom surface of the processing tank 2. The circulation port 13 communicates with the circulation conduit 13a. The circulation line 13 a is branched into two lines, that is, an endoscope circulation line 30 and a processing tank circulation line 40.
　内視鏡循環管路３０は、循環管路１３ａと後述するチャンネルバルブ３２とを連通している。内視鏡循環管路３０には、循環ポンプ３３が設けられている。循環ポンプ３３は、稼働することにより内視鏡循環管路３０内の流体をチャンネルバルブ３２に向かって移送する。 The endoscope circulation line 30 communicates the circulation line 13a with a channel valve 32 described later. A circulation pump 33 is provided in the endoscope circulation conduit 30. The circulation pump 33 operates to transfer the fluid in the endoscope circulation conduit 30 toward the channel valve 32.
　チャンネルバルブ３２には、前述の内視鏡循環管路３０の他に、吸気管路３４、アルコール管路３８および送出管路３１が接続されている。チャンネルバルブ３２は、送出管路３１に、内視鏡循環管路３０、吸気管路３４およびアルコール管路３８のうちのいずれか１つの管路を選択的に連通させる。 The channel valve 32 is connected to an intake pipe 34, an alcohol pipe 38, and a delivery pipe 31 in addition to the endoscope circulation pipe 30 described above. The channel valve 32 selectively connects any one of the endoscope circulation conduit 30, the intake conduit 34, and the alcohol conduit 38 to the delivery conduit 31.
　吸気管路３４は、一方の端部が大気に開放されており、他方の端部がチャンネルバルブ３２に接続されている。なお、図示しないが、吸気管路３４の一方の端部には、通過する気体を濾過するフィルタが設けられている。エアポンプ３５は、吸気管路３４に設けられており、稼働することにより吸気管路３４内の気体をチャンネルバルブ３２に向かって移送する。 The intake pipe 34 has one end open to the atmosphere and the other end connected to the channel valve 32. Although not shown, a filter for filtering the passing gas is provided at one end of the intake pipe 34. The air pump 35 is provided in the intake pipe 34 and moves the gas in the intake pipe 34 toward the channel valve 32 by operating.
　アルコール管路３８は、アルコールを貯留するアルコールタンク３７とチャンネルバルブ３２とを連通している。アルコールタンク３７内に貯留されるアルコールは、例えばエタノールが挙げられる。アルコール濃度については、適宜に選択することができる。アルコールポンプ３９は、アルコール管路３８に設けられており、稼働することによりアルコールタンク３７内のアルコールをチャンネルバルブ３２に向かって移送する。 The alcohol pipe line 38 communicates the alcohol tank 37 that stores alcohol and the channel valve 32. Examples of the alcohol stored in the alcohol tank 37 include ethanol. About alcohol concentration, it can select suitably. The alcohol pump 39 is provided in the alcohol pipe line 38 and moves the alcohol in the alcohol tank 37 toward the channel valve 32 by operating.
　処理槽２内に液体が貯留されている場合に、チャンネルバルブ３２を送出管路３１と内視鏡循環管路３０とが連通した状態とし、循環ポンプ３３の運転を開始すれば、処理槽２内の液体が、循環口１３、循環管路１３ａおよび内視鏡循環管路３０を経由して、送出管路３１に送り込まれる。 When the liquid is stored in the processing tank 2, the processing valve 2 can be obtained by setting the channel valve 32 in a state where the delivery pipe line 31 and the endoscope circulation pipe 30 are in communication with each other and the operation of the circulation pump 33 is started. The liquid inside is sent to the delivery line 31 via the circulation port 13, the circulation line 13 a and the endoscope circulation line 30.
　また、チャンネルバルブ３２を送出管路３１と吸気管路３４とが連通した状態とし、エアポンプ３５の運転を開始すれば、空気が送出管路３１に送り込まれる。また、チャンネルバルブ３２を送出管路３１とアルコール管路３８とが連通した状態とし、アルコールポンプ３９の運転を開始すれば、アルコールタンク３７内のアルコールが送出管路３１に送り込まれる。 Further, when the channel valve 32 is brought into a state where the delivery line 31 and the intake line 34 are in communication with each other and the operation of the air pump 35 is started, air is sent into the delivery line 31. Further, when the channel valve 32 is brought into a state where the delivery pipe line 31 and the alcohol pipe line 38 are in communication with each other and the operation of the alcohol pump 39 is started, the alcohol in the alcohol tank 37 is fed into the delivery pipe line 31.
　送出管路３１は、内視鏡接続管路３１ｂおよびケース接続管路３１ｃに分岐している。内視鏡接続管路３１ｂは、内視鏡接続部１６に接続されている。また、ケース接続管路３１ｃは、付属品ケース１７に接続されている。 The delivery pipeline 31 is branched into an endoscope connection pipeline 31b and a case connection pipeline 31c. The endoscope connection pipe line 31 b is connected to the endoscope connection unit 16. Further, the case connection pipe line 31 c is connected to the accessory case 17.
　また、送出管路３１には、流路切替部３１ａが設けられている。流路切替部３１ａは、チャンネルバルブ３２から送出管路３１に送り込まれた流体を、内視鏡接続管路３１ｂおよびケース接続管路３１ｃのいずれに流すかを切り替え可能である。なお、切り替え時に内視鏡接続管路３１ｂ側の圧力が一定となるように制御してもよい。 Further, the delivery pipe line 31 is provided with a flow path switching unit 31a. The flow path switching unit 31a can switch whether the fluid sent from the channel valve 32 to the delivery pipe line 31 is allowed to flow to the endoscope connection pipe line 31b or the case connection pipe line 31c. In addition, you may control so that the pressure by the side of the endoscope connection pipe line 31b may become fixed at the time of switching.
　内視鏡接続部１６は、図示しない内視鏡チューブを介して、内視鏡に設けられた口金に接続される。また、付属品ケース１７は、内視鏡の図示しない付属品を収容するかご状の部材である。したがって、チャンネルバルブ３２から送出管路３１に送り込まれた流体は、内視鏡の口金内または付属品ケース１７内に導入される。 The endoscope connection unit 16 is connected to a base provided in the endoscope through an endoscope tube (not shown). The accessory case 17 is a cage member that accommodates an accessory (not shown) of the endoscope. Therefore, the fluid sent from the channel valve 32 to the delivery pipe line 31 is introduced into the mouthpiece of the endoscope or the accessory case 17.
　処理槽循環管路４０は、循環管路１３ａと循環ノズル１４とを連通している。循環ノズル１４は、処理槽２内に設けられた開口部である。処理槽循環管路４０には、流液ポンプ４１が設けられている。 The treatment tank circulation line 40 communicates the circulation line 13a and the circulation nozzle 14 with each other. The circulation nozzle 14 is an opening provided in the processing tank 2. The treatment tank circulation pipe 40 is provided with a fluid pump 41.
　また、処理槽循環管路４０の流液ポンプ４１と循環ノズル１４との間には、三方弁４２が設けられている。三方弁４２には、給水管路４３が接続されている。三方弁４２は、循環ノズル１４と処理槽循環管路４０とを連通した状態、または循環ノズル１４と給水管路４３とを連通した状態、に切り替え可能である。 Further, a three-way valve 42 is provided between the flowing liquid pump 41 and the circulation nozzle 14 in the treatment tank circulation line 40. A water supply pipeline 43 is connected to the three-way valve 42. The three-way valve 42 can be switched to a state where the circulation nozzle 14 and the treatment tank circulation line 40 are communicated with each other or a state where the circulation nozzle 14 and the water supply line 43 are communicated.
　給水管路４３は、三方弁４２と水供給源接続部４６とを連通している。給水管路４３には、給水管路４３を開閉する水導入バルブ４５および水を濾過する水フィルタ４４が設けられている。水供給源接続部４６は、例えばホース等を介して、水を送出する水道設備等の水供給源４９に接続される。 The water supply pipe 43 communicates the three-way valve 42 and the water supply source connection 46. The water supply pipe 43 is provided with a water introduction valve 45 for opening and closing the water supply pipe 43 and a water filter 44 for filtering water. The water supply source connection unit 46 is connected to a water supply source 49 such as a water supply facility that sends out water through, for example, a hose.
　給水管路４３の、水フィルタ４４と三方弁４２との間の区間には、希釈バルブ４７が設けられている。希釈バルブ４７には、希釈バルブ４７とタンク２０とを連通する希釈管路４８が接続されている。希釈バルブ４７は、水フィルタ４４と三方弁４２とを連通した状態、または水フィルタ４４と希釈管路４８とを連通した状態、に切り替え可能である。 A dilution valve 47 is provided in a section of the water supply pipe 43 between the water filter 44 and the three-way valve 42. A dilution pipe 48 that connects the dilution valve 47 and the tank 20 is connected to the dilution valve 47. The dilution valve 47 can be switched between a state in which the water filter 44 and the three-way valve 42 are in communication with each other, or a state in which the water filter 44 and the dilution pipe 48 are in communication with each other.
　処理槽２内に液体が貯留されている場合に、三方弁４２を循環ノズル１４と処理槽循環管路４０とを連通した状態とし、希釈バルブ４７を水フィルタ４４と三方弁４２とを連通した状態として、流液ポンプ４１の運転を開始すれば、処理槽２内の液体が、循環口１３、循環管路１３ａおよび処理槽循環管路４０を経由して、循環ノズル１４から吐出される。 When liquid is stored in the treatment tank 2, the three-way valve 42 is in a state where the circulation nozzle 14 and the treatment tank circulation pipe 40 are in communication, and the dilution valve 47 is in communication with the water filter 44 and the three-way valve 42. If the operation of the fluid pump 41 is started as a state, the liquid in the treatment tank 2 is discharged from the circulation nozzle 14 via the circulation port 13, the circulation line 13 a and the treatment tank circulation line 40.
　また、三方弁４２を、循環ノズル１４と給水管路４３とを連通した状態とし、希釈バルブ４７を水フィルタ４４と三方弁４２とを連通した状態として、水導入バルブ４５を開状態とすれば、水供給源４９から供給された水が循環ノズル１４から吐出される。循環ノズル１４から吐出された液体は、処理槽２内に導入される。 If the three-way valve 42 is in a state where the circulation nozzle 14 and the water supply pipe 43 are in communication, the dilution valve 47 is in a state in which the water filter 44 and the three-way valve 42 are in communication, and the water introduction valve 45 is opened. The water supplied from the water supply source 49 is discharged from the circulation nozzle 14. The liquid discharged from the circulation nozzle 14 is introduced into the processing tank 2.
　また、希釈バルブ４７を水フィルタ４４と希釈管路４８とを連通した状態とし、水導入バルブ４５を開状態とすれば、水供給源４９から供給された水がタンク２０内に導入される。 Further, when the dilution valve 47 is in a state where the water filter 44 and the dilution pipe line 48 are communicated and the water introduction valve 45 is opened, water supplied from the water supply source 49 is introduced into the tank 20.
　洗浄液ノズル１５は、洗浄液管路５１を介して、洗浄液を貯留する洗浄液タンク５０に連通する開口部である。洗浄液は、洗浄処理に用いられる。洗浄液管路５１には、洗浄液ポンプ５２が設けられている。洗浄液ポンプ５２を運転することにより、洗浄液タンク５０内の洗浄液が、処理槽２内に移送される。 The cleaning liquid nozzle 15 is an opening communicating with the cleaning liquid tank 50 for storing the cleaning liquid through the cleaning liquid pipe 51. The cleaning liquid is used for the cleaning process. A cleaning liquid pump 52 is provided in the cleaning liquid pipe 51. By operating the cleaning liquid pump 52, the cleaning liquid in the cleaning liquid tank 50 is transferred into the processing tank 2.
　また、内視鏡リプロセッサ１は、使用者との間の情報の授受を行うユーザインターフェースを構成する、操作部７および出力部８を備える。操作部７および出力部８は、制御部５に電気的に接続されている。 Also, the endoscope reprocessor 1 includes an operation unit 7 and an output unit 8 that constitute a user interface that exchanges information with a user. The operation unit 7 and the output unit 8 are electrically connected to the control unit 5.
　操作部７は、例えばプッシュスイッチやタッチセンサ等の操作部材を含む。また、出力部８は、例えば画像や文字を表示する表示装置、光を発する発光装置、音を発するスピーカ、またはこれらの組み合わせ、を含む。なお、操作部７および出力部８は、制御部５との間で無線通信を行う電子機器に備えられる形態であってもよい。 The operation unit 7 includes operation members such as a push switch and a touch sensor. The output unit 8 includes, for example, a display device that displays images and characters, a light emitting device that emits light, a speaker that emits sound, or a combination thereof. The operation unit 7 and the output unit 8 may be provided in an electronic device that performs wireless communication with the control unit 5.
　次に、タンク２０の構成について説明する。図２に示すように、タンク２０には、濃度測定装置８０および水位センサ５５が配設されている。 Next, the configuration of the tank 20 will be described. As shown in FIG. 2, the tank 20 is provided with a concentration measuring device 80 and a water level sensor 55.
　タンク２０は、所定の第１水位Ｌ１よりも高い第２水位Ｌ２水位まで測定対象液を貯留可能である。タンク２０は、濃度測定装置８０の測定部８０ａを着脱可能に保持する保持部２０ｂを有している。 The tank 20 can store the liquid to be measured up to the second water level L2 higher than the predetermined first water level L1. The tank 20 includes a holding unit 20b that detachably holds the measuring unit 80a of the concentration measuring device 80.
　濃度測定装置８０は、測定部８０ａの測定面８６ａに接している測定対象液１００に含有される測定対象の濃度を測定する。測定対象液１００が過酢酸含有液である本実施形態では、濃度測定装置８０は、測定対象液１００に含有される測定対象である過酢酸イオンの濃度を測定する。 The concentration measuring device 80 measures the concentration of the measurement target contained in the measurement target liquid 100 in contact with the measurement surface 86a of the measurement unit 80a. In the present embodiment in which the measurement target liquid 100 is a peracetic acid-containing liquid, the concentration measuring device 80 measures the concentration of peracetic acid ions that are the measurement target contained in the measurement target liquid 100.
　濃度測定装置８０は、測定部８０ａおよび冷却部９０を含む。測定部８０ａは、ハウジング８１、電極８４、本体接続部８８、浸透膜８６および内部液８３を含む。 The concentration measuring device 80 includes a measuring unit 80a and a cooling unit 90. The measurement unit 80 a includes a housing 81, an electrode 84, a main body connection unit 88, a permeable membrane 86 and an internal liquid 83.
　ハウジング８１は、くぼみ８１ａが設けられた容器状の部材である。くぼみ８１ａの内部には、複数の電極８４が離間して配置されている。複数の電極８４は、電気ケーブル８７および本体接続部８８を介して、内視鏡リプロセッサ１ａの電気接点９に電気的に接続される。すなわち、濃度測定装置８０は、内視鏡リプロセッサ１の制御部５に電気的に接続される。濃度測定装置８０の制御装置は制御部５に含まれている。なお、図２では電気接点９と保持部２０ｂとが離れて設けられているが、電気接点９は保持部２０ｂから露出するように設けられていてもよい。この場合、本体接続部８８は、濃度測定装置８０の保持部２０ｂに設けられた電気接点９に接触する箇所に設けられる。 The housing 81 is a container-like member provided with a recess 81a. A plurality of electrodes 84 are spaced apart from each other inside the recess 81a. The plurality of electrodes 84 are electrically connected to the electrical contacts 9 of the endoscope reprocessor 1a via the electric cable 87 and the main body connecting portion 88. That is, the concentration measuring device 80 is electrically connected to the control unit 5 of the endoscope reprocessor 1. The control device of the concentration measuring device 80 is included in the control unit 5. In FIG. 2, the electrical contact 9 and the holding portion 20b are provided apart from each other, but the electrical contact 9 may be provided so as to be exposed from the holding portion 20b. In this case, the main body connecting portion 88 is provided at a location where the main body connecting portion 88 contacts the electrical contact 9 provided on the holding portion 20b of the concentration measuring device 80.
　くぼみ８１ａの開口部は、浸透膜８６によって覆われている。また、くぼみ８１ａの内部には、内部液８３が貯留されている。浸透膜８６のくぼみ８１ａの内側に露出した放出面８６ｂは、内部液８３に接触している。また、くぼみ８１ａ内において、複数の電極８４は、内部液８３中に浸漬される。 The opening of the recess 81 a is covered with a permeable membrane 86. In addition, an internal liquid 83 is stored inside the recess 81a. The discharge surface 86 b exposed inside the recess 81 a of the osmotic membrane 86 is in contact with the internal liquid 83. In addition, the plurality of electrodes 84 are immersed in the internal liquid 83 in the recess 81a.
　測定面８６ａとは、浸透膜８６の、放出面８６ｂとは反対側の面である。すなわち、濃度測定装置８０が測定対象液１００の濃度測定を行う場合において、浸透膜８６は、内部液８３と測定対象液１００とを隔てるように配置される部材である。 The measurement surface 86a is the surface of the osmotic membrane 86 opposite to the discharge surface 86b. That is, when the concentration measuring device 80 measures the concentration of the measurement target liquid 100, the osmotic membrane 86 is a member arranged so as to separate the internal liquid 83 and the measurement target liquid 100.
　図３は、浸透膜８６を測定対象が透過する様子を模式的に示した図である。図３は、測定対象液１００が測定面８６ａに接触しており、かつ浸透膜８６の測定面８６ａ側が湿潤状態にある場合を示している。また、図３に示す状態では、測定対象液１００中の測定対象の濃度が、内部液８３中の測定対象の濃度よりも高いものとする。 FIG. 3 is a diagram schematically showing a state where the measurement target passes through the osmotic membrane 86. FIG. 3 shows a case where the measurement target liquid 100 is in contact with the measurement surface 86a and the measurement surface 86a side of the osmotic membrane 86 is in a wet state. Further, in the state shown in FIG. 3, the concentration of the measurement target in the measurement target liquid 100 is higher than the concentration of the measurement target in the internal liquid 83.
　浸透膜８６は、液体分子は通さないが気体分子を通す多孔質の膜である。浸透膜８６の断面には、内部液８３に接する放出面８６ａを含む放出層８６ｃ、測定対象液１００に接する測定面８６ａを含む測定層８６ｄ、ならびに放出層８６ｃおよび測定層８６ｄに挟まれた乾燥層８６ｅが存在する。 The osmotic membrane 86 is a porous membrane that does not allow liquid molecules to pass but allows gas molecules to pass. In the cross section of the osmotic membrane 86, a release layer 86c including a release surface 86a in contact with the internal liquid 83, a measurement layer 86d including a measurement surface 86a in contact with the measurement target liquid 100, and a dry sandwiched between the release layer 86c and the measurement layer 86d. Layer 86e is present.
　くぼみ８１ａ内には常に内部液８３が貯留されていることから、放出層８６ｃには、内部液８３が浸透している。また、測定層８６ｄには、測定対象液１００が浸透する。測定層８６ｄに浸透している測定対象液１００中の測定対象は、気体分子となって乾燥層８６ｅを透過した後に、放出層８６ｃに浸透している内部液８３に溶け込む。そして、内部液８３に溶け込んだ測定対象は、放出面８６ａからくぼみ８１ａ内の内部液８３中に放出される。なお、これとは反対に、測定対象液１００中の測定対象の濃度よりも内部液８３中の測定対象の濃度が高い場合には、内部液８３中の測定対象が浸透膜８６を透過して測定対象液１００中に移る。 Since the internal liquid 83 is always stored in the recess 81a, the internal liquid 83 permeates the release layer 86c. Further, the measurement target liquid 100 penetrates into the measurement layer 86d. The measurement target in the measurement target liquid 100 penetrating into the measurement layer 86d becomes a gas molecule, passes through the dry layer 86e, and then dissolves in the internal liquid 83 penetrating into the release layer 86c. Then, the measurement object dissolved in the internal liquid 83 is discharged from the discharge surface 86a into the internal liquid 83 in the recess 81a. On the contrary, when the concentration of the measurement target in the internal liquid 83 is higher than the concentration of the measurement target in the measurement target liquid 100, the measurement target in the internal liquid 83 passes through the osmotic membrane 86. It moves into the liquid 100 to be measured.
　したがって、測定層８６ｄが湿潤状態であり、測定面８６ａに測定対象液１００が接触している場合には、測定面８６ａに接触している測定対象液１００が含有する測定対象の濃度に応じて、内部液８３中の測定対象の濃度が変化する。そして内部液８３中の測定対象の濃度の変化に応じて、複数の電極８４間に生じる電位差、または一対の電極８４間に流れる電流値に変化が生じる。 Accordingly, when the measurement layer 86d is in a wet state and the measurement target liquid 100 is in contact with the measurement surface 86a, the measurement layer 86d is in contact with the measurement target liquid 100 in contact with the measurement surface 86a. The concentration of the measurement target in the internal liquid 83 changes. Then, according to the change in the concentration of the measurement target in the internal liquid 83, the potential difference generated between the plurality of electrodes 84 or the current value flowing between the pair of electrodes 84 changes.
　このように、濃度測定装置８０のハウジング８１のくぼみ８１ａの内部では、電極８４と浸透膜８６との間に内部液８３が配置されており、電極８４と浸透膜８６とは内部液８３によってつながった状態となっている。ここで言う「つなぐ」とは、浸透膜８６を透過して内部液８３中に到達した測定対象のイオンが、内部液８３を媒体として電極８４に到達できる状態を指す。 As described above, the internal liquid 83 is disposed between the electrode 84 and the osmotic membrane 86 inside the recess 81 a of the housing 81 of the concentration measuring device 80, and the electrode 84 and the osmotic membrane 86 are connected by the internal liquid 83. It is in the state. Here, “connect” refers to a state in which ions to be measured that have passed through the osmotic membrane 86 and reached the internal liquid 83 can reach the electrode 84 using the internal liquid 83 as a medium.
　濃度測定装置８０は、測定部８０ａの複数の電極８４間に生じる電位差の変化、又は複数の電極８４間に流れる電流値の変化を計測し、この計測値に基づいて測定面８６ａに接している測定対象液１００中の測定対象の濃度を測定する。このような濃度測定装置８０における濃度測定の原理や構成は周知のものであるため、詳細な説明は省略するものとする。 The concentration measuring device 80 measures a change in potential difference generated between the plurality of electrodes 84 of the measurement unit 80a or a change in a current value flowing between the plurality of electrodes 84, and is in contact with the measurement surface 86a based on the measured value. The concentration of the measurement target in the measurement target liquid 100 is measured. Since the principle and configuration of concentration measurement in such a concentration measuring apparatus 80 are well known, detailed description thereof will be omitted.
　タンク２０が有する保持部２０ｂは、タンク２０の内部において、浸透膜８６の測定面８６ａが測定対象液１００に接触するように、ハウジング８１を着脱可能に保持する。保持部２０ｂによって保持された濃度測定装置８０の測定面８６ａは、タンク２０内の、所定の第１水位Ｌ１に配置される。したがって、タンク２０の所定の第１水位Ｌ１以上まで測定対象液１００を貯留すれば、浸透膜８６は測定対象液１００中に浸漬し、測定面８６ａに測定対象液１００が接触する。なお、保持部２０ｂによって保持された状態のハウジング８１の一部は、タンク２０の外に露出していてもよい。 The holding portion 20b of the tank 20 detachably holds the housing 81 in the tank 20 so that the measurement surface 86a of the osmotic membrane 86 contacts the measurement target liquid 100. The measurement surface 86a of the concentration measuring device 80 held by the holding unit 20b is disposed at a predetermined first water level L1 in the tank 20. Accordingly, if the measurement target liquid 100 is stored up to a predetermined first water level L1 or higher in the tank 20, the osmotic membrane 86 is immersed in the measurement target liquid 100, and the measurement target liquid 100 comes into contact with the measurement surface 86a. A part of the housing 81 held by the holding portion 20 b may be exposed outside the tank 20.
　水位センサ５５は、タンク２０内に貯留されている液面の高さを検出する。水位センサ５５は、制御部５に電気的に接続されており、検出結果の情報を制御部５に出力する。本実施形態では一例として、水位センサ５５は、少なくとも、タンク２０内の液面が第１水位Ｌ１に達しているか否か、を検出する。 The water level sensor 55 detects the height of the liquid level stored in the tank 20. The water level sensor 55 is electrically connected to the control unit 5 and outputs detection result information to the control unit 5. In this embodiment, as an example, the water level sensor 55 detects at least whether or not the liquid level in the tank 20 has reached the first water level L1.
　なお、水位センサ５５は、測定対象液ボトル１８から供給される測定対象液の原液と、希釈管路から供給される水とをタンク２０内において混合する場合において、両者の体積比を所定の値とするために用いられてもよい。 In addition, the water level sensor 55, when mixing the stock solution of the measurement target liquid supplied from the measurement target liquid bottle 18 and the water supplied from the dilution pipe in the tank 20, sets the volume ratio of both to a predetermined value. May be used.
　水位センサ５５の構成は特に限定されるものではない。水位センサ５５は、例えば離間して配設された複数の電極を備え、複数の電極が液体中に没しているか否かによって変化する複数の電極間の電気的な導通の有無に基づいて、液面が所定の水位に達しているか否かを検出する、いわゆる電極式水位センサであってもよい。また例えば、水位センサ５５は、測定対象液に浮くフロートの上下動に応じて開閉するスイッチの動作状態に基づいて、測定対象液の液面が所定の水位に達しているか否かを検出する、いわゆるフロート式水位センサであってもよい。 The configuration of the water level sensor 55 is not particularly limited. The water level sensor 55 includes, for example, a plurality of electrodes that are spaced apart from each other, and based on the presence or absence of electrical continuity between the plurality of electrodes that varies depending on whether or not the plurality of electrodes are submerged in the liquid. A so-called electrode-type water level sensor that detects whether or not the liquid level has reached a predetermined water level may be used. Further, for example, the water level sensor 55 detects whether or not the liquid level of the measurement target liquid has reached a predetermined water level based on the operating state of a switch that opens and closes according to the vertical movement of the float floating in the measurement target liquid. A so-called float type water level sensor may be used.
　冷却部９０は、浸透膜８６の少なくとも測定層８６ｄに浸透している液体を凝固温度以下まで冷却する。冷却部９０は、制御部５に電気的に接続される。冷却部９０の動作は制御部５によって制御される。 The cooling unit 90 cools the liquid penetrating at least the measurement layer 86d of the osmotic membrane 86 to a solidification temperature or lower. The cooling unit 90 is electrically connected to the control unit 5. The operation of the cooling unit 90 is controlled by the control unit 5.
　冷却部９０は、例えば測定層８６ｄに直接的に接している部材を冷却することによって、測定層８６ｄに浸透している液体を凝固温度以下まで冷却する構成であってもよいし、また例えば浸透膜８６の測定面８６ｂに接触する気体を冷却することによって、測定層８６ｄに浸透している液体を凝固温度以下まで冷却する構成であってもよい。 The cooling unit 90 may be configured to cool the liquid that has permeated the measurement layer 86d to, for example, the solidification temperature or lower by cooling a member that is in direct contact with the measurement layer 86d. The configuration may be such that the liquid that permeates the measurement layer 86d is cooled to a solidification temperature or lower by cooling the gas that contacts the measurement surface 86b of the film 86.
　本実施形態では一例として、冷却部９０は、ペルチェ素子９１を備え、ペルチェ素子９１の駆動によって測定層８６ｄに浸透している液体を冷却する。また、本実施形態の冷却部９０は、測定層８６ｄからペルチェ素子９１に熱を伝える伝熱部９２を備える。 In the present embodiment, as an example, the cooling unit 90 includes a Peltier element 91, and cools the liquid penetrating the measurement layer 86d by driving the Peltier element 91. In addition, the cooling unit 90 of the present embodiment includes a heat transfer unit 92 that transfers heat from the measurement layer 86 d to the Peltier element 91.
　伝熱部９２は、測定層８６ｄに浸透している液体とペルチェ素子９１の吸熱部とを接続している。伝熱部９２は、本実施形態で一例として、測定面８６ｄに接する金属製のメッシュ状の部材である。メッシュ状の部材とは、線状の部材を編んだ形態の部材に限られず、板状の部材に複数の貫通孔を設けた形態の部材も含む。 The heat transfer section 92 connects the liquid that has permeated the measurement layer 86d and the heat absorption section of the Peltier element 91. As an example in the present embodiment, the heat transfer unit 92 is a metal mesh member that contacts the measurement surface 86d. The mesh-like member is not limited to a member in a form in which a linear member is knitted, and includes a member in a form in which a plurality of through holes are provided in a plate-like member.
　伝熱部９２を構成する材料は、例えばステンレス鋼等の測定対象液１００に対する耐腐食性を有し、かつ熱伝導率の高い材料であることが好ましい。伝熱部９２は、図２に示すように測定面８６ｂに接して配置されていてもよいし、測定層９１の内部に埋め込まれていてもよい。伝熱部９２は、メッシュ状等の液体通過部分が形成された構造であることから、測定対象の浸透膜８６の透過を妨げない。 The material constituting the heat transfer section 92 is preferably a material that has corrosion resistance to the liquid 100 to be measured, such as stainless steel, and has high thermal conductivity. As shown in FIG. 2, the heat transfer unit 92 may be disposed in contact with the measurement surface 86 b or may be embedded in the measurement layer 91. Since the heat transfer part 92 has a structure in which a liquid passage part such as a mesh is formed, it does not hinder the permeation of the osmotic membrane 86 to be measured.
　ペルチェ素子９１の駆動によって、測定層８６ｄの熱は、伝熱部９２を伝わりペルチェ素子９１の発熱部から放出される。浸透膜８６の測定層８６ｄに測定対象液１００や水等の液体が浸透している場合にペルチェ素子９１を駆動すれば、測定層８６ｄに浸透している液体は凝固温度以下まで冷却されて凝固する。 By driving the Peltier element 91, the heat of the measurement layer 86 d is transmitted through the heat transfer section 92 and released from the heat generating section of the Peltier element 91. If the Peltier element 91 is driven when a liquid 100 such as the measurement target liquid 100 or water penetrates the measurement layer 86d of the osmotic membrane 86, the liquid penetrating the measurement layer 86d is cooled to below the solidification temperature and solidified. To do.
　以上のように構成された濃度測定装置８０は、浸透膜８６の測定面８６ｂが空気中に露出している間、連続的または間欠的に冷却部９０を駆動することによって測定層８６ｄに浸透している液体を冷却して凝固させる。なお、冷却開始のタイミングは特に限定されるものではないが、測定面８６ｂが空気中に露出される前であって液体に浸漬している段階で冷却を開始することが好ましい。 The concentration measuring device 80 configured as described above penetrates the measurement layer 86d by driving the cooling unit 90 continuously or intermittently while the measurement surface 86b of the osmotic membrane 86 is exposed to the air. The liquid is cooled and solidified. In addition, although the timing of a cooling start is not specifically limited, It is preferable to start cooling before the measurement surface 86b is exposed in the air and in the stage immersed in the liquid.
　測定層８６ｄに浸透している液体が凝固することにより、測定層８６ｄに浸透している液体が、測定面８６ｂから空気中に蒸発することを防止できる。 When the liquid permeating the measurement layer 86d is solidified, it is possible to prevent the liquid permeating the measurement layer 86d from evaporating into the air from the measurement surface 86b.
　また、測定層８６ｄと放出層８６ｃとの間には、気体を含んだ乾燥層８６ｅが介在している。乾燥層８６ｅの存在により、測定層８６ｄと放出層８６ｃとの間の熱の伝達率が低下するため、冷却部９０によって測定層８６ｄを冷却した場合における、内部液８３の温度低下を防止し、内部液８３の温度を濃度測定の実行が可能な温度範囲内に保つことができる。 Further, a dry layer 86e containing a gas is interposed between the measurement layer 86d and the release layer 86c. Due to the presence of the dry layer 86e, the heat transfer rate between the measurement layer 86d and the release layer 86c is reduced, and therefore, when the measurement layer 86d is cooled by the cooling unit 90, the temperature drop of the internal liquid 83 is prevented, The temperature of the internal liquid 83 can be kept within a temperature range in which concentration measurement can be performed.
　なお、本実施形態において、冷却部９０を駆動する場合において測定層８６ｄに浸透している液体は、測定対象液１００に限られず、水であってもよい。例えば、タンク２０内に測定対象液１００を貯留した直後であれば、測定層８６ｄに浸透している液体は、測定対象液１００である。また例えば、タンク２０内の測定対象液１００を排出した後に、水供給源４９から供給された水をタンク２０内に導入してタンク２０内をすすぐ動作を実行した後であれば、測定層８６ｄに浸透している液体は、水である。 In the present embodiment, the liquid penetrating the measurement layer 86d when driving the cooling unit 90 is not limited to the measurement target liquid 100, and may be water. For example, if it is immediately after storing the measurement target liquid 100 in the tank 20, the liquid penetrating the measurement layer 86 d is the measurement target liquid 100. In addition, for example, after the measurement target liquid 100 in the tank 20 is discharged, the water supplied from the water supply source 49 is introduced into the tank 20 and the inside of the tank 20 is rinsed. The liquid penetrating into the water is water.
　また、濃度測定装置８０は、濃度測定を行う際には、冷却部９０を停止する。前述のように、冷却部９０の駆動によって凝固するのは、膜状の浸透膜８６の測定層８６ｄに浸透している液体のみであるから、当該液体を融解するのに必要な熱量は僅かである。 Further, the concentration measuring device 80 stops the cooling unit 90 when performing concentration measurement. As described above, since only the liquid that permeates the measurement layer 86d of the membrane-like osmotic membrane 86 is solidified by the driving of the cooling unit 90, the amount of heat necessary to melt the liquid is small. is there.
　したがって、測定面８６ｂが液体に接触している場合に、冷却部９０を停止すれば、測定面８６ｂに接触している液体の熱によって、測定層８６ｄに浸透している液体は即時に融解する。よって、浸透膜８６の測定面８６ｂは、濃度測定装置８０による濃度測定の実行が可能な湿潤状態となる。 Therefore, when the measurement surface 86b is in contact with the liquid and the cooling unit 90 is stopped, the liquid penetrating the measurement layer 86d is immediately melted by the heat of the liquid in contact with the measurement surface 86b. . Therefore, the measurement surface 86b of the osmotic membrane 86 is in a wet state where concentration measurement by the concentration measurement device 80 can be performed.
　以上に説明したように、本実施形態の濃度測定装置８０は、測定面８６ｂが空気中に露出している場合には、冷却部９０を駆動することによって測定層８６ｄに浸透している液体を凝固させて測定層８６ｄからの液体の蒸発を防止し、測定層８６ｄ中の水分量を保持することができる。よって、本実施形態の濃度測定装置８０は、浸透膜８６の乾燥を防止して測定対象液１００の濃度測定を遅滞無く実行することができる。 As described above, the concentration measuring device 80 of the present embodiment allows the liquid permeating the measurement layer 86d by driving the cooling unit 90 when the measurement surface 86b is exposed to the air. By solidifying, the evaporation of the liquid from the measurement layer 86d can be prevented, and the amount of water in the measurement layer 86d can be maintained. Therefore, the concentration measuring apparatus 80 of the present embodiment can execute the concentration measurement of the measurement target liquid 100 without delay by preventing the osmotic membrane 86 from drying.
　なお、測定面８６ｂが空気中に露出している場合とは、本実施形態においては、水位センサ５５によって、タンク２０内の第１水位Ｌ１まで液体が貯留されていないことが検出されている場合のことである。 Note that the case where the measurement surface 86b is exposed to the air means that in the present embodiment, the water level sensor 55 detects that the liquid is not stored up to the first water level L1 in the tank 20. That is.
　すなわち、本実施形態の内視鏡リプロセッサ１の制御部５は、水位センサ５５によって、タンク２０内の第１水位Ｌ１まで液体が貯留されていないことが検出されている場合に冷却部９０を駆動し、水位センサ５５によって、タンク２０内の第１水位Ｌ１まで液体が貯留されていることが検出されている場合に冷却部９０を停止する制御を行う。 That is, the control unit 5 of the endoscope reprocessor 1 of the present embodiment uses the cooling unit 90 when the water level sensor 55 detects that no liquid is stored up to the first water level L1 in the tank 20. When the water level sensor 55 detects that the liquid is stored up to the first water level L 1 in the tank 20, the cooling unit 90 is controlled to stop.
　これにより、本実施形態の内視鏡リプロセッサ１は、濃度測定装置８０の浸透膜８６の乾燥を防止して測定対象液１００の濃度測定を遅滞無く実行することができる。 Thereby, the endoscope reprocessor 1 of the present embodiment can prevent the drying of the osmotic membrane 86 of the concentration measuring device 80 and execute the concentration measurement of the measurement target liquid 100 without delay.
　したがって、例えば週末にタンク２０内から測定対象液１００を排出し、平日に未使用の新たな測定対象液をタンク２０内に供給する場合のように、タンク２０内に測定対象液１００が長期間存在せずに浸透膜８６の測定面８６ｂが空気中に長期間露出した後であっても、本実施形態の内視鏡リプロセッサ１であれば、測定対象液１００をタンク２０内に供給した後に濃度測定装置８０による測定対象液１００の濃度測定を遅滞無く実行し、続く再生処理を開始することができる。 Therefore, for example, when the measurement target liquid 100 is discharged from the tank 20 on the weekend and a new measurement target liquid unused on weekdays is supplied into the tank 20, the measurement target liquid 100 remains in the tank 20 for a long period of time. Even if the measurement surface 86b of the osmotic membrane 86 does not exist and is exposed to the air for a long time, the measurement target liquid 100 is supplied into the tank 20 in the endoscope reprocessor 1 of the present embodiment. Later, the concentration measurement of the measurement target liquid 100 by the concentration measuring device 80 can be performed without delay, and the subsequent regeneration process can be started.
　なお、本実施形態の濃度測定装置８０は、ペルチェ素子９１の発熱部の熱を、ハウジング８１内の内部液８３に伝える伝熱部を備えていてもよい。この場合、ペルチェ素子９１の駆動により、測定層８６ｄに浸透している液体を冷却して凝固させるとともに、内部液８３に熱を与えることによって内部液８３の温度の低下を防止することができる。 Note that the concentration measuring device 80 of the present embodiment may include a heat transfer unit that transfers the heat of the heat generation unit of the Peltier element 91 to the internal liquid 83 in the housing 81. In this case, by driving the Peltier element 91, the liquid penetrating the measurement layer 86d can be cooled and solidified, and the internal liquid 83 can be prevented from being lowered by applying heat to the internal liquid 83.
（第２の実施形態）　
　次に、本発明の第２の実施形態について説明する。以下では第１の実施形態との相違点のみを説明するものとし、第１の実施形態と同様の構成要素については同一の符号を付し、その説明を適宜に省略するものとする。 (Second Embodiment)
Next, a second embodiment of the present invention will be described. Hereinafter, only differences from the first embodiment will be described, and the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate.
　図４に示す本実施形態の濃度測定装置８０は、冷却部９０の構成が第１の実施形態と異なる。本実施形態の冷却部９０は、ヒートポンプ９３を備える。ヒートポンプ９３は、熱媒体を用いて吸熱部９３ｆから発熱部９３ｇへ熱を移動させる。 4 is different from the first embodiment in the configuration of the cooling unit 90 in the concentration measuring apparatus 80 of the present embodiment shown in FIG. The cooling unit 90 of this embodiment includes a heat pump 93. The heat pump 93 moves heat from the heat absorbing portion 93f to the heat generating portion 93g using a heat medium.
　吸熱部９３ｆは、測定層８６ｄからペルチェ素子９１に熱を伝える伝熱部９２に接触している。吸熱部９３ｆは、第１の実施形態で説明したように、浸透膜８６の測定面８６ｂに接触した形態であってもよいし、浸透膜８６の測定層８６ｄ内に埋め込まれた形態であってもよい。 The heat absorption part 93f is in contact with the heat transfer part 92 that transfers heat from the measurement layer 86d to the Peltier element 91. As described in the first embodiment, the endothermic portion 93f may be in contact with the measurement surface 86b of the osmotic membrane 86, or may be embedded in the measurement layer 86d of the osmotic membrane 86. Also good.
　発熱部９３ｇは、内部液８３に熱を伝える。本実施形態では一例として、発熱部９３ｇは、ハウジング８１のくぼみ８１ａの中に配置されている。なお、発熱部９３ｇは、ハウジング８１の外に配置されており、発熱部８３ｇの熱が、発熱部８３ｇと内部液８３とに接触する伝熱部を経由して内部液８３に伝わる形態であってもよい。 The heat generating part 93g transmits heat to the internal liquid 83. In the present embodiment, as an example, the heat generating portion 93 g is disposed in the recess 81 a of the housing 81. The heat generating part 93g is disposed outside the housing 81, and the heat of the heat generating part 83g is transmitted to the internal liquid 83 via the heat transfer part contacting the heat generating part 83g and the internal liquid 83. May be.
　より具体的には、ヒートポンプ９３は、吸熱部９３ｆに配置されたエバポレータ９３ａ、発熱部９３ｇに配置されたコンデンサ９３ｂ、エバポレータ９３ａとコンデンサ９３ｂをつなぐコンプレッサ９３ｃおよびコンデンサ９３ｂとエバポレータ９３ａをつなぐ膨張弁９３ｄを備える。ヒートポンプ９３は周知の技術であるため、詳細な説明は省略する。 More specifically, the heat pump 93 includes an evaporator 93a disposed in the heat absorbing section 93f, a condenser 93b disposed in the heat generating section 93g, a compressor 93c that connects the evaporator 93a and the condenser 93b, and an expansion valve 93d that connects the condenser 93b and the evaporator 93a. Is provided. Since the heat pump 93 is a well-known technique, a detailed description thereof is omitted.
　本実施形態では、ヒートポンプ９３の駆動により、測定層８６ｄの熱は、伝熱部９２およびヒートポンプ９３を伝わり内部液８３に伝えられる。このため、本実施形態の濃度測定装置８０は、ヒートポンプ９３の駆動により、測定層８６ｄに浸透している液体を冷却して凝固させるとともに、内部液８３に熱を与えることによって内部液８３の温度の低下を防止し、内部液８３の温度を濃度測定の実行が可能な温度範囲内に確実に保つことができる。 In this embodiment, the heat of the measurement layer 86d is transmitted to the internal liquid 83 through the heat transfer section 92 and the heat pump 93 by driving the heat pump 93. For this reason, the concentration measuring device 80 of the present embodiment cools and solidifies the liquid permeating the measurement layer 86d by driving the heat pump 93, and applies heat to the internal liquid 83 to thereby increase the temperature of the internal liquid 83. Can be prevented, and the temperature of the internal liquid 83 can be reliably maintained within a temperature range in which concentration measurement can be performed.
　濃度測定装置８０および内視鏡リプロセッサ１の動作は、第１の実施形態と同様である。したがって、本実施形態の濃度測定装置８０および内視鏡リプロセッサ１は、測定面８６ｂが空気中に露出している場合には、冷却部９０を駆動することによって測定層８６ｄに浸透している液体を凝固させて測定層８６ｄからの液体の蒸発を防止し、測定層８６ｄ中の水分量を保持することができる。よって、本実施形態の濃度測定装置８０は、浸透膜８６の乾燥を防止して測定対象液１００の濃度測定を遅滞無く実行することができる。 The operations of the concentration measuring device 80 and the endoscope reprocessor 1 are the same as those in the first embodiment. Therefore, when the measurement surface 86b is exposed to the air, the concentration measurement device 80 and the endoscope reprocessor 1 according to this embodiment penetrate the measurement layer 86d by driving the cooling unit 90. The liquid can be solidified to prevent evaporation of the liquid from the measurement layer 86d, and the amount of water in the measurement layer 86d can be maintained. Therefore, the concentration measuring apparatus 80 of the present embodiment can execute the concentration measurement of the measurement target liquid 100 without delay by preventing the osmotic membrane 86 from drying.
　なお、本発明は、前述した実施形態に限られるものではなく、請求の範囲および明細書全体から読み取れる発明の要旨或いは思想に反しない範囲で適宜変更可能であり、そのような変更を伴う濃度測定装置および内視鏡リプロセッサもまた本発明の技術的範囲に含まれるものである。 It should be noted that the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification, and concentration measurement with such a change is possible. Devices and endoscope reprocessors are also within the scope of the present invention.
　本発明によれば、浸透膜の乾燥を防止して遅滞なく濃度測定の実行が可能な濃度測定装置および内視鏡リプロセッサを実現できる。 According to the present invention, it is possible to realize a concentration measuring device and an endoscope reprocessor capable of preventing concentration of a osmotic membrane and performing concentration measurement without delay.
　本出願は、２０１５年７月２１日に日本国に出願された特願２０１５－１４４１４６号を優先権主張の基礎として出願するものであり、上記の開示内容は、本願明細書、請求の範囲に引用されるものとする。 This application is filed on the basis of the priority claim of Japanese Patent Application No. 2015-144146 filed in Japan on July 21, 2015. The above disclosure is included in the present specification and claims. Shall be quoted.

Claims (6)

  1. 　くぼみを有するハウジングと、
    　前記くぼみの中に収容された電極と、
    　測定対象を含有した測定対象液に接触する測定面を含む測定層、前記測定面から侵入した測定対象を前記ハウジング内に放出する放出面を含む放出層、ならびに、前記測定層および前記放出層に挟まれた乾燥層、を含み、前記くぼみを覆う浸透膜と、
    　前記ハウジング内に封入されて、前記電極と前記浸透膜とをつなぐ内部液と、を含む測定部と、
    　前記電極を内視鏡リプロセッサ本体に電気的に接続するための本体接続部と、
    　少なくとも前記測定層に浸透している液体を凝固温度以下まで冷却する冷却部と、
    を含むことを特徴とする濃度測定装置。     A housing having a recess;
    An electrode housed in the recess;
    A measurement layer including a measurement surface that comes into contact with a measurement target liquid containing a measurement target, a discharge layer including a discharge surface that discharges the measurement target that has entered from the measurement surface into the housing, and the measurement layer and the discharge layer. An osmotic membrane that covers the recess,
    An internal liquid enclosed in the housing and connecting the electrode and the osmotic membrane;
    A body connecting portion for electrically connecting the electrode to an endoscope reprocessor body;
    A cooling unit that cools at least the liquid penetrating the measurement layer to a solidification temperature or lower;
    A concentration measuring apparatus comprising:
  2. 　前記冷却部は、前記測定層の中、または前記測定面に配置されたペルチェ素子を含むことを特徴とする請求項１に記載の濃度測定装置。 2. The concentration measuring apparatus according to claim 1, wherein the cooling unit includes a Peltier element disposed in the measurement layer or on the measurement surface.
  3. 　前記冷却部は、
    　前記測定層に配置されるか、または前記測定層に浸透している液体に熱伝導材により接続されたエバポレータと、
    　前記くぼみの中に配置されるか、または前記内部液に熱伝導材により接続されたコンデンサと、
    　前記エバポレータおよび前記コンデンサをつなぐコンプレッサと、
    　前記コンデンサおよび前記エバポレータをつなぐ膨張弁と、
    を含むことを特徴とする請求項１に記載の濃度測定装置。     The cooling part is
    An evaporator disposed in the measurement layer or connected to a liquid penetrating the measurement layer by a heat conducting material;
    A capacitor disposed in the recess or connected to the internal liquid by a heat conductive material;
    A compressor connecting the evaporator and the condenser;
    An expansion valve connecting the capacitor and the evaporator;
    The concentration measuring device according to claim 1, comprising:
  4. 　前記測定対象は過酢酸イオンであり、
    　前記測定層に浸透している液体は過酢酸含有水溶液である
    ことを特徴とする請求項１に記載の濃度測定装置。     The measurement object is peracetate ion,
    The concentration measuring apparatus according to claim 1, wherein the liquid penetrating the measurement layer is a peracetic acid-containing aqueous solution.
  5. 　前記測定層に浸透している液体は水である
    ことを特徴とする請求項１に記載の濃度測定装置。     The concentration measuring apparatus according to claim 1, wherein the liquid penetrating the measurement layer is water.
  6. 　請求項１に記載の濃度測定装置と、
    　測定対象液を貯留するタンクと、
    　前記浸透膜が前記タンクの前記測定対象液に浸漬するように前記ハウジングを保持する保持部と、
    　前記本体接続部に接続される電気接点と、
    を備えることを特徴とする内視鏡リプロセッサ。     A concentration measuring device according to claim 1;
    A tank for storing the liquid to be measured;
    A holding part for holding the housing so that the permeable membrane is immersed in the liquid to be measured in the tank;
    An electrical contact connected to the main body connecting portion;
    An endoscope reprocessor comprising:
PCT/JP2016/059495 2015-07-21 2016-03-24 Concentration measurement device and endoscope reprocessor WO2017013905A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016546112A JP6006465B1 (en) 2015-07-21 2016-03-24 Concentration measuring device and endoscope reprocessor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015144146 2015-07-21
JP2015-144146 2015-07-21

Publications (1)

Publication Number Publication Date
WO2017013905A1 true WO2017013905A1 (en) 2017-01-26

Family

ID=57834255

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/059495 WO2017013905A1 (en) 2015-07-21 2016-03-24 Concentration measurement device and endoscope reprocessor

Country Status (1)

Country Link
WO (1) WO2017013905A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5643554A (en) * 1979-09-19 1981-04-22 Toshiba Corp Electrode having semipermeable membrane
JPS58196451A (en) * 1982-05-13 1983-11-15 Fujikura Ltd Oxygen concentration measuring apparatus
JP2010057792A (en) * 2008-09-05 2010-03-18 Fujifilm Corp Endoscope washing and disinfecting apparatus
JP2013064702A (en) * 2011-09-20 2013-04-11 Hitachi Maxell Ltd Electrode protection body
JP5826982B1 (en) * 2014-09-04 2015-12-02 オリンパス株式会社 Electrode solution measuring device, storage container, and endoscope reprocessor
JP5893817B1 (en) * 2014-11-18 2016-03-23 オリンパス株式会社 Densitometer and endoscope reprocessor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5643554A (en) * 1979-09-19 1981-04-22 Toshiba Corp Electrode having semipermeable membrane
JPS58196451A (en) * 1982-05-13 1983-11-15 Fujikura Ltd Oxygen concentration measuring apparatus
JP2010057792A (en) * 2008-09-05 2010-03-18 Fujifilm Corp Endoscope washing and disinfecting apparatus
JP2013064702A (en) * 2011-09-20 2013-04-11 Hitachi Maxell Ltd Electrode protection body
JP5826982B1 (en) * 2014-09-04 2015-12-02 オリンパス株式会社 Electrode solution measuring device, storage container, and endoscope reprocessor
JP5893817B1 (en) * 2014-11-18 2016-03-23 オリンパス株式会社 Densitometer and endoscope reprocessor

Similar Documents

Publication Publication Date Title
ES2203505T3 (en) ELECTROLYTIC SYNTHESIS OF PERACETIC ACID.
WO2016194449A1 (en) Endoscope reprocessor
JP5966095B1 (en) Endoscope reprocessor
US10219684B2 (en) Endoscope reprocessor
JP6006465B1 (en) Concentration measuring device and endoscope reprocessor
WO2017013905A1 (en) Concentration measurement device and endoscope reprocessor
JP6006462B1 (en) Endoscope reprocessor
JP6122227B1 (en) Endoscope reprocessor
JP2013091039A (en) Strong acid water producing apparatus
JP6017744B1 (en) Endoscope reprocessor
JP6033518B1 (en) Endoscope reprocessor
WO2017013906A1 (en) Endoscope reprocessor
JP6006466B1 (en) Endoscope reprocessor
WO2017064963A1 (en) Endoscope reprocessor
US9993144B2 (en) Control method for endoscope reprocessor
JP6495558B1 (en) Endoscope reproduction processing method and endoscope reprocessor
JP2016023958A (en) Concentration measuring device and endoscope washing and disinfecting device
JP2018075168A (en) Endoscope reprocessor and endoscope reprocessing method
JP2017055893A (en) Endoscope reprocessor
JP2009189413A (en) Endoscope washing and disinfecting apparatus

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2016546112

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16827470

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16827470

Country of ref document: EP

Kind code of ref document: A1