Abstract: An endoscope reprocessor includes a concentration sensor including a concave section in which a sensing section is housed and a permeable membrane configured to cover the concave section, a medicinal solution tank, to an inside of which at least the permeable membrane is exposed and on the inside of which a disinfection solution is stored, and a heating section configured to heat at least the permeable membrane.

Abstract: A control method for an endoscope reprocessor including a medicinal solution tank, a concentration measurement chamber, and a concentration meter disposed in the concentration measurement chamber and which comprises a container, an electrode housed inside the container, a permeable membrane sealing the container, and a content fluid sealed inside the container, the control method, includes: a step I of introducing a medicinal solution into the medicinal solution tank; a step II of introducing the medicinal solution into the concentration measurement chamber and measuring a concentration of the medicinal solution; a step III of draining the medicinal solution inside the medicinal solution tank from the endoscope reprocessor, and maintaining a state where inside of the medicinal solution tank is empty for a predetermined time period; and a step IV of maintaining a moisture content inside the concentration measurement chamber at a predetermined value or more during the step III.

Abstract: An endoscope reprocessor includes a concentration sensor including a concave section in which a sensing section is housed and a permeable membrane configured to cover the concave section, a medicinal solution tank, to an inside of which at least the permeable membrane is exposed and on the inside of which a disinfection solution is stored, and a heating section configured to heat at least the permeable membrane.

Abstract: A control method for an endoscope reprocessor including a medicinal solution tank, a concentration measurement chamber, and a concentration meter disposed in the concentration measurement chamber and which comprises a container, an electrode housed inside the container, a permeable membrane sealing the container, and a content fluid sealed inside the container, the control method, includes: a step I of introducing a medicinal solution into the medicinal solution tank; a step II of introducing the medicinal solution into the concentration measurement chamber and measuring a concentration of the medicinal solution; a step III of draining the medicinal solution inside the medicinal solution tank from the endoscope reprocessor, and maintaining a state where inside of the medicinal solution tank is empty for a predetermined time period; and a step IV of maintaining a moisture content inside the concentration measurement chamber at a predetermined value or more during the step III.

Abstract: An endoscope reprocessor of the present invention includes a reservoir configured to store a solution, a fluid supply section configured to supply the solution into the reservoir, a fluid discharge section configured to discharge the solution from the reservoir, a recessed pool section fixed inside the reservoir and having a bottom surface positioned below an opening section in a gravitational direction, and a concentration meter including a permeable membrane having a first surface exposed inside the pool section, at least a part of the first surface being positioned below the opening section in the gravitational direction, an accommodation section having a container shape and including a part of a second surface of the permeable membrane as an inner surface, the second surface being on an opposite side to the first surface, internal liquid accommodated in the accommodation section, and an electrode accommodated in the accommodation section.

Abstract: An endoscope reprocessor includes a concentration meter including a permeation membrane, a medicinal-solution storing section including a holding section configured to hold the concentration meter such that the permeation membrane is disposed at a predetermined water level, the medicinal-solution storing section storing the medicinal solution to a water level higher than the predetermined water level, a liquid discharge section configured to discharge the medicinal solution from the medicinal-solution storing section, a liquid supply section configured to supply liquid to the permeation membrane of the concentration meter, and a control section connected to the liquid discharge section and the liquid supply section, the control section driving the liquid supply section to wet the permeation membrane when the medicinal solution in the medicinal-solution storing section is lower than the predetermined water level.

Abstract: An endoscope reprocessor of the present invention includes a reservoir configured to store a solution, a fluid supply section configured to supply the solution into the reservoir, a fluid discharge section configured to discharge the solution from the reservoir, a recessed pool section fixed inside the reservoir and having a bottom surface positioned below an opening section in a gravitational direction, and a concentration meter including a permeable membrane having a first surface exposed inside the pool section, at least a part of the first surface being positioned below the opening section in the gravitational direction, an accommodation section having a container shape and including a part of a second surface of the permeable membrane as an inner surface, the second surface being on an opposite side to the first surface, internal liquid accommodated in the accommodation section, and an electrode accommodated in the accommodation section.

Abstract: A concentration meter is a concentration meter that measures a concentration of a predetermined solution, and includes: a main body section including an opening portion, and an internal liquid and an electrode that are housed in the opening portion; a permeation membrane that seals the opening portion; a water-holding section that is opposed to the permeation membrane; and an inflow/outflow section which is an opening that allows a clearance between the permeation membrane and the water-holding section to communicate with an outside space of the main body section, wherein the permeation membrane and the water-holding section are separated from each other by a distance in which the solution is held in the air due to a surface tension of the solution, with the solution contacting the permeation membrane and the water-holding section.

Abstract: In an electrode unit, a working electrode and a counter electrode are disposed in a cylindrical section having a cylindrical shape, which is a sensor main body, a distal end face of the working electrode is covered with a diaphragm that allows liquid to be measure to permeate, and an internal liquid chamber in which internal liquid of an electrolyte is stored and a standard solution chamber in which a standard solution for calibration is stored are partitioned by the diaphragm. The standard solution chamber is surrounded by an inner wall of the cylindrical section and a cap. When the electrode unit is mounted on a medical solution tank, zero adjustment is automatically performed using a standard solution inside the electrode unit. Thereafter, when the cap is opened, the standard solution is discharged and measurement in an actual use can be performed.

Abstract: A cleaning/disinfecting method includes a step of filling a first liquid storing section with a first liquid, a step of supplying, by a set amount, a second liquid to a second liquid storing section, a step of moving the first liquid and the second liquid back and forth or circulating the first liquid and the second liquid between the first liquid storing section and the second liquid storing section to thereby create mixed liquid of the first liquid and the second liquid, a step of detecting a ratio of the first liquid or the second liquid included in the mixed liquid, and a step of comparing the ratio with a specified value to thereby check a contact degree of the first liquid with the first liquid storing section.

Abstract: A liquid mixing apparatus of the present invention includes: a first tank; a first introduction section that introduces a first liquid into the first tank; a second introduction section that introduces a second liquid into the first tank; a first opening portion provided above a highest liquid level of the first tank; a second tank; a third introduction section that introduces a third liquid into the second tank; a second opening portion provided above a highest liquid level of the second tank; a liquid transfer conduit that connects a bottom surface portion of the first tank and a bottom surface portion of the second tank; an opening/closing valve provided in the liquid transfer conduit; a gas transfer conduit having one end arranged above the highest liquid level in the first tank and another end arranged above the highest liquid level in the second tank; a pump capable of forward/reverse operation that can transfer a gas in two directions inside the gas transfer conduit; and an atmospheric release control

Abstract: A liquid mixing apparatus of the present invention includes: a first tank; a first introduction section that introduces a first liquid into the first tank; a second introduction section that introduces a second liquid into the first tank; a first opening portion provided above a highest liquid level of the first tank; a second tank; a third introduction section that introduces a third liquid into the second tank; a second opening portion provided above a highest liquid level of the second tank; a liquid transfer conduit that connects a bottom surface portion of the first tank and a bottom surface portion of the second tank; an opening/closing valve provided in the liquid transfer conduit; a gas transfer conduit having one end arranged above the highest liquid level in the first tank and another end arranged above the highest liquid level in the second tank; a pump capable of forward/reverse operation that can transfer a gas in two directions inside the gas transfer conduit; and an atmospheric release control