JP2007029537A - Decontamination method of sequestered flexible member, and condensation detector of sequestered flexible component used for decontamination method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decontamination method for efficiently decontaminating the surface of a sequestered flexible member (such as a glove) provided in a decontamination chamber (such as an isolator). <P>SOLUTION: A transparent surface 35 for detection formed at a surface 13a to be decontaminated of the glove 13 provided in the isolator 1 is irradiated with a laser beam L to monitor the photodetected quantity of light transmitted through the transparent surface 35. Then, utilizing reduction of the photodetected quantity caused by forming of a condensed film 30 on the transparent surface 35, a time of starting forming of the condensed film 30 on the glove 13 is specified to manage decontamination. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a decontamination method for decontaminating the surface of an isolation flexible member (e.g., a glove) provided in a decontamination chamber (e.g., an isolator), and the isolation flexibility used in the decontamination method. The present invention relates to a member condensation detection apparatus.

  In factories that manufacture pharmaceuticals and the like, a decontaminated space is locally provided in order to efficiently perform filling and processing of each product in a decontaminated air atmosphere. As an example of realizing this, there is an isolator.

  Here, the isolator generally includes a glove provided on the chamber wall so as to protrude toward the indoor side. Thereby, the operator can insert the hand into the glove while performing the various operations while checking the inside through the window glass or the like while being outside (see, for example, Patent Document 1).

  By the way, in the above configuration, in order to make the interior of the isolator decontaminated, hydrogen peroxide gas is introduced into the isolator, and the gas is further condensed in the room to form a condensation film on the indoor surface. A configuration has been proposed. Of course, at this time, a condensation film is formed on the surface of the glove to be decontaminated (hereinafter referred to as the decontamination target surface) to decontaminate the surface. Here, as a measure for verifying whether or not the surface of the glove to be decontaminated has been decontaminated, a configuration in which a known biological indicator is attached in advance to the verification location has been proposed. Based on the result of the biological indicator, it is determined whether or not the surface to be decontaminated has been decontaminated.

JP 2000-343479 A

  However, although the above-mentioned glove decontamination method is configured to decontaminate the surface of the glove decontamination by forming a condensation film, it is objectively confirmed whether or not the condensation film is formed on the surface. There was no proposed configuration that could be done, so it was done exclusively with the worker's experience. Accordingly, there has been a strong demand for a decontamination method that can confirm that a condensed film has been reliably formed on the surface of the glove decontamination target.

  Therefore, the present invention provides a method for decontaminating an isolation flexible member capable of quickly decontaminating an isolation flexible member (such as a glove), and a condensation detection device for the isolation flexible member used in the decontamination method. The purpose is to provide.

  The present invention relates to an isolation flexible member that is airtightly connected to a working opening disposed on a wall of a decontamination chamber into which decontamination gas is introduced so as to protrude indoors or outdoors. A decontamination method for an isolation flexible member that condenses the decontamination gas on the surface of the decontamination target to decontaminate the decontamination target surface, the decontamination target related to the isolation flexible member Based on the measured value, light is radiated on a light-transmitting surface made of a light-transmitting material formed on at least a part of the surface, and the amount of light received through the light-transmitting surface for detection is continuously measured. A decontamination method for an isolation flexible member characterized in that the decontamination gas supplied to the decontamination chamber is controlled to control the decontamination of the surface to be decontaminated related to the isolation flexible member. . Here, decontamination includes chemical T-phase decontamination, sterilization, sterilization, sterilization, and the like. In addition, controlling the decontamination gas to decontaminate the surface to be decontaminated related to the isolation flexible member includes all actions necessary for decontamination of the isolation flexible member. The decontamination gas may be additionally introduced into the decontamination chamber, the condensation and evaporation of the decontamination gas may be repeatedly performed on the surface to be decontaminated, or the introduction of the decontamination gas may be stopped. Further, as the isolation flexible member, a so-called glove, a half suit, or a carrying bag that protrudes to the outside of the room can be exemplified. In addition, continuous measurement includes intermittent measurement as well as continuous measurement.

  In the present invention, when the decontamination gas is introduced into the decontamination chamber and the decontamination gas becomes saturated in the chamber, the decontamination gas starts to condense in the chamber. At this time, the decontamination gas begins to condense also on the surface of the isolation flexible member to be decontaminated, and the decontamination gas also begins to condense on the light-transmitting surface for detection according to the present invention. Then, when light is emitted from the predetermined light projecting device, for example, to the light transmitting surface for detection, the irradiated light is received by the predetermined light receiving device after passing through the condensation film formed on the light transmitting surface for detection. Will be. Here, the amount of received light measured in such a case is smaller than the amount of received light measured when the condensed film is not formed. This is because the irradiation light related to the condensation is scattered and absorbed by the condensation film, but the irradiation light related to the non-condensation is received without being scattered and absorbed because there is no condensation film. Therefore, if the timing at which the amount of received light decreases in the process of continuously measuring the amount of received light that has passed through the light-transmitting surface for detection, that timing corresponds to the timing at which the formation of the condensed film is started. It becomes. Therefore, the present invention can grasp that the decontamination gas has started to condense on the surface of the decontamination target related to the isolation flexible member by monitoring the change in the amount of received light passing through the light-transmitting surface for detection. it can. Note that when condensation is formed on the light-transmitting surface for detection, and then the condensation further proceeds to increase the thickness of the condensed film, the amount of received light to be measured further decreases correspondingly. That is, the present invention is a configuration capable of decontaminating the decontamination target surface related to the isolation flexible member while grasping the temporal change of the condensation film on the decontamination target surface of the isolation flexible member. It is. In addition, if it is possible to objectively grasp whether or not a condensation film is formed on the surface of the isolation member of the isolation flexible member in this way, for example, a predetermined amount of the condensation film is isolated at a predetermined time. It is possible to immediately identify an abnormal state such as not being formed on the surface of the flexible member to be decontaminated, and it is possible to quickly take appropriate measures to avoid this abnormal state.

In the above decontamination method, a condensation detection device having the following configuration is preferably used.
The present invention relates to an isolation flexible member that is airtightly connected to a working opening disposed on a wall of a decontamination chamber into which decontamination gas is introduced so as to protrude indoors or outdoors. A condensing detection device for an isolation flexible member that detects that the decontamination gas is condensed on the surface of the decontamination object, and a light projecting device including an irradiation unit that irradiates light in one direction, A light receiving portion that receives light from the light projecting device, and a light receiving device that generates a voltage output substantially proportional to the amount of light received, and is formed on at least a part of the surface of the decontamination target related to the isolation flexible member. The light-transmitting surface for detection is disposed between the irradiation unit of the light projecting device and the light-receiving unit of the light receiving device, and light emitted from the irradiation unit passes through the light transmitting surface for detection. It is a condensation detection apparatus of an isolation flexible member.

  With this configuration, the irradiation light emitted from the light projecting device passes through the detection light transmitting surface and is received by the light receiving device. Therefore, when the condensed film is formed on the translucent surface for detection, the amount of received light is reduced. Therefore, it is detected that the condensed film has started to be formed on the surface of the isolation flexible member to be decontaminated. be able to.

  Here, the isolation flexible member is configured to be airtightly connected to the working opening so as to protrude to the indoor side, and is a decontamination space to be decontaminated in the decontamination chamber. A configuration is proposed in which a light projecting device support member that supports the light projecting device and a light receiving device support member that supports the light receiving device are disposed.

  Here, in order to maintain a high degree of decontamination, the decontamination chamber cannot be opened frequently to install or remove a light projector or the like in the decontamination chamber. Therefore, with this configuration, when the isolation flexible member is decontaminated, at least the isolation flexible member is inserted between the light projecting device and the light receiving device that are fixedly installed in advance. Since the detection is possible, the work content for the condensation detection is simplified. Moreover, a measured value will be obtained stably.

  In addition, a configuration is proposed in which at least one of the light projecting device and the light receiving device is arranged in a space outside the decontamination chamber that communicates with the atmosphere outside the decontamination chamber. Here, the atmosphere outside the decontamination room refers to a space that is not subject to decontamination.

  By adopting such a configuration, it becomes possible for an operator outside the decontamination chamber to easily handle the device arranged in the space outside the decontamination chamber, so that measurement work and maintenance can be performed easily. When the isolation flexible member protrudes to the indoor side, the internal space of the isolation flexible member is located in the decontamination chamber, but the space communicates with the atmosphere outside the decontamination chamber. Therefore, it is included in the space outside the decontamination room.

  Further, the present invention provides an isolation flexible member that is airtightly connected to a working opening provided on a wall of a decontamination chamber into which a decontamination gas is introduced so as to protrude indoors. A decontamination flexible member decontamination method that condenses the decontamination gas on a decontamination target surface to decontaminate the decontamination target surface, the method comprising: A decontamination method for an isolation flexible member, wherein the surface temperature is set to be equal to or lower than the room temperature of the decontamination chamber, and the decontamination target surface of the isolation flexible member is decontaminated.

  In general, condensation of decontamination gas is more likely to occur as the surface temperature of an object to be decontaminated is lower. Furthermore, if the surface temperature of the object to be decontaminated is equal to or lower than the room temperature of the decontamination chamber, condensation is further promoted. Therefore, by setting it as the structure which concerns on this invention, the condensation in the decontamination object surface which concerns on the isolation flexible member will be accelerated | stimulated, and decontamination of an isolation flexible member can be performed rapidly. .

  Further, a saddle-like gas introduction pipe is inserted from the outside into the isolation flexible member through the work opening, and the distal end of the gas introduction pipe is connected to the inside of the isolation flexible member. Is connected to a low temperature gas supply section that supplies a low temperature gas below the room temperature of the decontamination chamber, and the gas introduction pipe introduces the low temperature gas into the isolation flexible member, thereby removing the isolation flexible member. A configuration is proposed in which the surface to be dyed is set to be equal to or lower than the room temperature of the decontamination chamber.

  By adopting such a configuration, the low temperature gas comes into contact with the isolation flexible member, and the surface temperature of the surface of the decontamination target in the isolation flexible member is lowered and converges below the room temperature. It becomes. Thereby, condensation on the surface of the decontamination target related to the isolation flexible member is promoted. By the way, the isolation flexible member is bent and deformed downward due to the material when the operator's hand or the like is not inserted and is not used. It cannot be decontaminated without unevenness. However, according to the present invention, since the gas passage for supplying the low temperature gas is configured by the bowl-shaped gas introduction pipe, the isolation flexible member is supported along the longitudinal direction by the gas introduction pipe, Bending is prevented. Therefore, by condensing the decontamination gas on the surface to be decontaminated in this supported state, the surface can be decontaminated without unevenness.

  Further, a saddle-like gas discharge pipe is inserted into the isolation flexible member from the outside through the work opening, and the distal end of the gas discharge pipe is connected to the isolation flexible member. Is arranged outside the decontamination chamber, and the gas exhaust pipe discharges the gas present in the isolation flexible member to the outside.

  Here, if the low temperature gas is continuously supplied to the inside of the isolation flexible member, the low temperature gas may stay inside the isolation flexible member, and a smooth gas flow may not be generated. Therefore, by connecting the gas discharge pipe according to the present invention in the isolation flexible member, the gas in the isolation flexible member flows into the gas discharge pipe by the introduction pressure of the low temperature gas, It will flow out of the room according to the guidance. Thereby, an appropriate gas flow of the low temperature gas is generated in the isolation flexible member, and the low temperature gas can be supplied smoothly. In addition, since the gas passage for exhausting the gas is configured by the bowl-shaped gas discharge pipe, the isolation flexible member is supported along the longitudinal direction by the gas discharge pipe, and the isolation is possible. The flexible member is prevented from bending downward. Thereby, the surface to be decontaminated can be decontaminated without unevenness.

  In addition, a member temperature measuring device for measuring the surface temperature of the surface and a member temperature changing device for changing the surface temperature of the surface are disposed on the surface to be decontaminated, and the decontamination chamber is disposed in the decontamination chamber. An indoor temperature measuring device for measuring the indoor temperature of the room is disposed, and the surface temperature of the surface of the decontamination target measured by the member temperature measuring device is measured by the indoor temperature measuring device by the member temperature changing device. A configuration with a room temperature or less is proposed.

  By setting it as this structure, the surface temperature of the decontamination object surface in the said isolation | separation flexible member will become low temperature, and will converge to below room temperature. Thereby, the condensation on the surface of the decontamination target related to the isolation flexible member is promoted, and the decontamination of the isolation flexible member is executed quickly.

  In the method for decontamination of the isolation flexible member according to the present invention, the light transmitted through the detection translucent surface is irradiated with light on the detection translucent surface formed on the surface of the isolation flexible member to be decontaminated. Since the decontamination target surface related to the isolation flexible member is decontaminated based on the amount of received light, it is possible to manage decontamination while grasping in detail the information about the condensation film on the decontamination target surface It becomes. In addition, if it is possible to objectively grasp whether or not a condensation film is formed on the surface of the isolation member of the isolation flexible member in this way, for example, a predetermined amount of the condensation film is isolated at a predetermined time. It is possible to immediately identify an abnormal state such as not being formed on the surface of the flexible member to be decontaminated, and there is an effect that an appropriate response can be quickly made to avoid this abnormal state.

  In the condensation detection device of the present invention, the light-transmitting surface for detection is disposed between the irradiation unit of the light projecting device and the light-receiving unit of the light-receiving device, and the light irradiated from the irradiation unit is changed to the light-transmitting surface for detection. Since it is configured to pass, it can be detected that a condensed film has started to be formed on the surface of the isolation flexible member to be decontaminated.

  Further, in the above-described configuration, when the light projecting device support member that supports the light projecting device and the light receiving device support member that supports the light receiving device are disposed in the decontamination space, When decontaminating the isolation flexible member protruding inward, it becomes possible to detect if at least the isolation flexible member is inserted between the light projecting device and the light receiving device fixedly installed in advance. There is an advantage that the work content for the condensation detection is simplified. In addition, there is an advantage that fluctuations in the measurement environment are suppressed and stable measurement values can be obtained.

  In addition, in the case where at least one of the light projecting device and the light receiving device is arranged in the space outside the decontamination chamber, the worker placed outside the decontamination chamber can be moved by an operator outside the decontamination chamber. Since it can be handled easily, there is an advantage that measurement work and maintenance can be easily performed.

  In addition, the decontamination method for the isolation flexible member according to the present invention is configured to perform decontamination management because the surface temperature of the decontamination target surface of the isolation flexible member is equal to or lower than the room temperature of the decontamination chamber. Condensation on the surface of the decontamination object related to the flexible member is promoted, and an effect that the decontamination of the isolated flexible member can be efficiently performed is born.

  In addition, when the low temperature gas is introduced into the isolation flexible member by the bowl-shaped gas introduction pipe, the surface temperature of the surface of the decontamination target is lowered and converges to the room temperature or less. Therefore, an effect of promoting condensation on the surface of the decontamination target is born. Moreover, since the isolation | separation flexible member will be supported from the inside by a gas introduction tube, it will be prevented from bending below and there exists an advantage which can decontaminate the surface uniformly.

  Moreover, when it is set as the structure which discharges | emits the gas which exists in the isolation flexible member out of a room | chamber by a bowl-shaped gas exhaust pipe, the effect which can optimize the internal pressure of the isolation flexible member made high is produced. Moreover, since the isolation | separation flexible member will be supported from the inside by a gas exhaust pipe, it will be prevented from bending downward, and there exists an advantage which can decontaminate the surface uniformly.

  In addition, when the surface temperature of the decontamination target surface measured by the member temperature measuring device is set to be equal to or lower than the indoor temperature measured by the indoor temperature measuring device by the member temperature changing device, in the isolation flexible member Since the surface temperature of the surface of the decontamination target converges below the room temperature, an effect of promoting condensation on the surface of the decontamination target related to the isolation flexible member is produced.

<First Example>
Next, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an isolator 1. The isolator 1 constitutes a decontamination chamber according to the present invention.
The isolator 1 includes a base 5. Further, on the base 5, the device housing 2 whose inside is decontaminated is held. In such a configuration, a local decontamination space 70 is configured by hermetically blocking the inside of the apparatus housing 2.

  Inside the apparatus housing 2, a partition plate 6 is provided in the vertical direction. A gap formed between the partition plate 6 and the chamber wall 15 of the isolator 1 serves as a peripheral circuit 7 through which air can flow. On the other hand, a space in the center of the apparatus housing 2 is a work space 14. In addition, a communication port 16 for communicating the work space 14 and the peripheral circuit 7 is provided at the lower end of the partition plate 6.

  A HEPA filter 12 for purifying gas is disposed in the upper portion of the working space 14. Further, a rectifying plate 17 for adjusting the airflow is bridged under the HEPA filter 12.

  Further, on the HEPA filter 12, a blower 11 capable of blowing air in one direction is installed. Then, the air blown by the blower 11 flows into the work space 14 via the HEPA filter 12 and the rectifying plate 17. Further, the air that has passed through the work space 14 passes through the communication port 16 and enters the peripheral circuit 7, and ascends in the peripheral circuit 7. Then, the rising air reaches the blower 11 and is blown again to the work space 14 by the blower 11.

  A part of the chamber wall 15 is constituted by a glass window 4 that allows the inside to be visually recognized. Further, the glass window 4 is formed with a working opening 3 that allows communication between the room and the outside. A cylindrical support member 8 is attached to the work opening 3. Further, a base end portion 9 of a globe 13 made of a flexible material is attached to the support member 8 in an airtight manner using an O-ring (not shown). Thereby, the work opening 3 is shut off in an airtight manner so that the globe 13 protrudes toward the work space 14. The operator can work in the work space 14 while inserting a hand into the globe 13 from outside and checking the inside through the glass window 4. In the present embodiment, the globe 13 is entirely made of a translucent material. Specifically, it is made of a material such as polyethylene or silicon. This glove 13 constitutes an isolation flexible member according to the present invention. Further, the inner space of the globe 13 and the space outside the isolator 1 are spaces that are not subject to decontamination, and correspond to the decontamination chamber outer space 71 according to the present invention.

  The isolator 1 is connected to a hydrogen peroxide gas supply device 51 that generates hydrogen peroxide gas (decontamination gas). Then, the hydrogen peroxide gas generated by the hydrogen peroxide gas supply device 51 is introduced into the work space 14. The isolator 1 is connected to a room temperature sensor 50 that measures the room temperature in the isolator 1. In addition, a well-known product can be used suitably for the hydrogen peroxide gas supply apparatus 51 and the indoor temperature sensor 50. Here, the room temperature sensor 50 constitutes the room temperature measuring apparatus according to the present invention.

  In this configuration, in order to decontaminate the inside of the isolator 1, the hydrogen peroxide gas is supplied into the work space 14 by the hydrogen peroxide gas supply device 51. If it does so, the gas containing hydrogen peroxide gas will circulate according to the airflow in the isolator 1. FIG. When the hydrogen peroxide gas is continuously charged, the hydrogen peroxide gas is saturated in the isolator 1 and a hydrogen peroxide gas condensation film 30 (see FIG. 4) starts to be formed in the isolator 1. Thus, when the condensation film 30 is formed, the surface is decontaminated with a high decontamination effect. Of course, the condensed film 30 of the hydrogen peroxide gas is also formed on the surface 13a to be decontaminated exposed on the work space 14 side in the surface of the globe 13 to decontaminate the surface 13a.

Next, the main part of the present invention will be described.
FIG. 2 shows the globe 13 and the condensation detection device A that detects that the condensation film 30 is formed on the surface 13a of the globe 13 to be decontaminated.

Hereinafter, the condensation detection apparatus A will be described.
The condensation detection device A includes a light projecting device 20 and a light receiving device 24 installed in the work space 14, respectively. Specifically, as shown in FIG. 3, the light projecting device 20 is placed on a horizontal support plate 20 a for the light projecting device that protrudes horizontally with respect to the chamber wall 15 erected in the vertical direction. In addition, the light receiving device 24 is placed on a horizontal support plate 24a for the light receiving device that protrudes horizontally with respect to the opposing chamber wall 15. The horizontal support plate 20a for the light projecting device constitutes the light projecting device support member according to the present invention. The light receiving device horizontal support plate 24a constitutes a light receiving device support member according to the present invention.

  As shown in FIG. 2, a light projecting unit 21 is disposed on one side surface of the light projecting device 20. The light projecting unit 21 emits laser light L in the near infrared region in one direction. In addition, a power supply device 23 is connected to the light projecting device 20 via a wiring cable 22a. By operating an operation panel (not shown) provided in the power supply device 23, a laser is emitted at a desired timing. The light L oscillates. The power supply device 23 is installed outside the isolator 1. The laser beam L is preferably a semiconductor laser beam, but may of course have other configurations. Moreover, a light source and a wavelength can also be selected suitably.

  On one side surface of the light receiving device 24, a light receiving unit 25 is disposed. The light receiving unit 25 is disposed at a position facing the laser light L emitted from the light projecting unit 21 and can receive the laser light L. The light receiving device 24 generates a voltage output corresponding to the amount of received light of the laser light L received by the light receiving unit 25, and is measured on a measurement value display unit (not shown) of the output device 26 connected via the wiring cable 22b. Display the value. In this embodiment, the transmitted light output is measured as a measurement value. The output device 26 is installed outside the isolator 1. As the light projecting device 20, the power supply device 23, the light receiving device 24, and the output device 26 described so far, known products are preferably used.

  The light projecting device 20, the light receiving device 24, and the globe 13 are disposed so that the globe 13 is positioned between the light projecting device 20 and the light receiving device 24. In the present embodiment, the laser light L is disposed so as to pass through the finger portion 75 of the globe 13. In addition, the translucent surface 35 for a detection which concerns on this invention is comprised by the surface part to which the laser beam L in the decontamination object surface 13a of the globe 13 is irradiated.

Next, a decontamination method for the globe 13 using the condensation detector A will be described.
First, before introducing hydrogen peroxide gas into the isolator 1, the laser light L is irradiated from the light projecting device 20 in a non-condensed state of the hydrogen peroxide gas, and the laser is based on the measured value displayed on the output device 26. The amount of received light L is measured in advance. This is for comparison with the amount of received light measured in the condensed state described later. The globe 13 is installed outside the isolator 1 and supported by a known globe support jig 85 inserted from the work opening 3. Thereby, the globe 13 is not bent downward, and the surface can be decontaminated without unevenness.

  Then, hydrogen peroxide gas is introduced into the isolator 1 to start decontamination of the surface 13a of the globe 13 to be decontaminated. Along with this, laser light L is emitted from the light projecting device 20 continuously or intermittently, and the amount of received light is monitored based on the measured value displayed on the output device 26.

  Further, hydrogen peroxide gas is introduced, and a condensed film 30 of hydrogen peroxide gas is formed in the isolator 1. Here, as shown in FIG. 4, the amount of light received measured in such a condensed state is related to the time when the laser beam L is scattered and absorbed due to the condensed film 30 formed on the globe 13 and is not condensed. It will be less than the amount of light received. That is, the transmitted light output displayed on the output device 26 is reduced.

  Thus, by continuously measuring the amount of light received by the light receiving device 24 after the gas is supplied, the presence or absence of the condensation film 30 on the decontamination target surface 13a related to the globe 13, that is, the start of condensation is known. Is possible. Further, by continuously measuring the amount of received light, the amount of condensation per unit area of the condensation film 30 can be estimated. Then, when the predetermined condensing amount defined and formed is maintained for a predetermined time, it is determined that the decontamination of the globe 13 is completed, and the introduction of the hydrogen peroxide gas is stopped. The time from the start of the formation of the condensed film 30 to the stop of the gas supply is a time for sufficiently decontaminating the decontamination target surface 13a, and can be determined as appropriate. It should be noted that the act of stopping the introduction of the hydrogen peroxide gas after the elapse of a predetermined time from the start of the condensation as described above is performed by controlling the hydrogen peroxide gas introduced into the isolator 1 according to the present invention to remove the globe 13. It is included in the decontamination management of the surface 13a to be dyed.

  Further, as a modification of the embodiment shown in FIG. 2, a condensation detection device A1 shown in FIG. 5 is proposed. In this configuration, the light projecting device 20 is installed in the decontamination space 70, and the light receiving device 24 is installed in the globe 13 (that is, in the decontamination outdoor space 71). The portion of the globe 13 positioned between the light projecting device 20 and the light receiving device 24 is used as the detection light transmitting surface 35. Even in such a configuration, since the laser light L emitted from the light projecting device 20 passes through the globe 13 and is received by the light receiving device 24, whether or not the condensed film 30 is formed on the light transmitting surface 35 for detection. Can be detected. As a result, it becomes possible to confirm whether or not the decontamination target surface 13a of the globe 13 has been decontaminated.

  Furthermore, another configuration of the condensation detection device A2 is proposed. As shown in FIG. 6, this configuration is a configuration in which the light projecting device 20 and the light receiving device 24 are both installed in the globe 13 (that is, in the decontamination room outer space 71). More specifically, each device 20, 24 is installed in a separate finger 75. The portion of the globe 13 positioned between the light projecting device 20 and the light receiving device 24 is used as the detection light transmitting portion 35. Specifically, the laser light L emitted from the light projecting device 20 passes through the finger portion 75 and then passes through the valley portion 76 located between the finger portion 75 and the light receiving device. 24 is incident on the other finger 75 which is inherent. Even in such a configuration, since the laser light L passes through the globe 13, it is possible to detect whether or not the condensed film 30 is formed on the detection light-transmitting surface 35. As a result, it becomes possible to confirm whether or not the decontamination target surface 13a of the globe 13 has been decontaminated.

  FIG. 7 shows a glove 13b having another configuration. In the glove 13b, the main body portion 13c (the arm portion and the palm portion of the glove 13b) is made of a non-translucent material, and the translucent portion 13d is made of a translucent material only at the base portion of the finger portion 75. ing. Then, the light projecting device 20, the light receiving device 24, and the globe 13b are arranged so that the laser light L is incident on the light transmitting portion 13d, and the light transmitting portion 13d is used as the detection light transmitting surface 35. . With this configuration, it is possible to detect whether or not the condensation film 30 is formed on the detection light-transmitting surface 35. As a result, it becomes possible to confirm whether the decontamination target surface 13e of the globe 13b has been decontaminated.

<Second Example>
Next, a decontamination method for the globe 13 according to the second embodiment will be described. In addition, about the structure which is common in 1st Example, while attaching | subjecting the same code | symbol, description is simplified or abbreviate | omitted.

  As shown in FIG. 8, the decontamination method of the globe 13 according to the present embodiment is characterized in that a low temperature gas is introduced by inserting a gas introduction pipe 41 into the globe 13.

  Specifically, a plurality of gas introduction pipes 41 are inserted into the globe 13 from the proximal end portion 9 of the globe 13 in the fingertip direction. More specifically, these gas introduction pipes 41 are constituted by three gas pipes at the base end portion 9, branching at the palm portion of the globe 13, and the tip 42 is located at each finger portion. ing.

  On the other hand, the base end 43 of the gas introduction pipe 41 is connected to a low-temperature gas supply device 40 installed outside the isolator 1. The low temperature gas supply device 40 generates a low temperature gas set at a temperature lower than the room temperature in the isolator 1 measured by the indoor temperature sensor 50 disposed in the isolator 1.

  In this configuration, when the low temperature gas supply device 40 is driven, the low temperature gas set at the above temperature is introduced into the globe 13 through the gas introduction pipe 41. Then, the globe 13 into which the low temperature gas is introduced changes to a temperature lower than the room temperature in the isolator 1 due to the low temperature effect.

  Here, the hydrogen peroxide gas introduced into the isolator 1 is likely to condense when the decontamination target surface 13a related to the globe 13 is at a lower temperature than the room temperature. Therefore, when the low temperature gas is introduced into the globe 13 and the globe 13 itself is cooled, the hydrogen peroxide gas is likely to condense on the decontamination target surface 13 a of the globe 13. Thus, if it becomes easy to condense and the time until a condensation start is shortened, decontamination of the glove 13 will progress rapidly, and decontamination time will be shortened as a whole. . Thereby, an efficient decontamination method is realized.

  As shown in FIG. 8, when a plurality of gas introduction pipes 41 are inserted into the globe 13 when hydrogen peroxide gas is introduced, the globe 13 is supported by the gas introduction pipe 41 from the inside. Therefore, it does not bend downward due to its flexibility. Therefore, the surface 13a to be decontaminated of the globe 13 is appropriately exposed in the work space 14, and the condensed film 30 can be formed on the surface 13a to be decontaminated without any unevenness.

  As shown in FIG. 8, in the present decontamination method, a gas discharge pipe 44 that discharges the low temperature gas to the outside of the isolator 1 is also inserted into the globe 13 from the proximal end portion 9 of the globe 13. . The distal end 45 of the gas discharge pipe 44 is located almost at the palm of the globe 13. On the other hand, the base end 46 is disposed in the vicinity of the base end portion 9.

  In such a configuration, when the low temperature gas is continuously introduced into the globe 13 by the gas introduction pipe 41, the low temperature gas tends to stay in the globe 13. Therefore, by providing the gas discharge pipe 44 with the above-described configuration, the gas in the globe 13 appropriately flows from the tip 45 according to the introduction pressure of the low temperature gas, and the isolator 1 follows the guidance of the gas discharge pipe 44. It will flow out. Thereby, an appropriate gas flow is generated in the globe 13 and a smooth gas supply becomes possible. The present invention does not exclude a configuration that does not include the gas discharge pipe 44.

<Third embodiment>
Other configurations are also proposed. Such a configuration will be described with reference to FIG.
A member temperature changing device 60 for adjusting the surface temperature of the globe 13 is connected to the isolator 1a according to the third embodiment. More specifically, a cooling / heating unit 59 containing a Peltier element is mounted on the surface 13 a of the globe 13 to be decontaminated. The cooling / heating unit 59 is connected to a cooling / heating unit power source 58 serving as a power source. The member temperature changing device 60 includes a cooling / heating unit 59 and a cooling / heating unit power supply unit 58.

  The globe 13 is equipped with a globe temperature sensor 55 that measures the surface temperature of the globe 13. The globe temperature sensor 55 includes a temperature measurement unit 55a disposed on the decontamination target surface 13a and a power supply unit 55b connected to the temperature measurement unit 55a. The globe temperature sensor 55 is preferably a contact-type commercially available product using a thermocouple, and constitutes a member temperature measuring device according to the present invention.

  Further, as shown in FIG. 10, the isolator 1 a includes a control device 80. In the control device 80, the indoor temperature sensor 50, the globe temperature sensor 55, and the cooling / heating unit power supply unit 58 are electrically connected to each other. Here, the control device 80 includes a CPU 81. A storage device ROM 82 and a storage device RAM 83 are connected to the CPU 81. More specifically, the storage device ROM 82 is connected to the CPU 81 via an address bus (not shown) that unilaterally transmits information for designating an address. The storage device RAM 83 is connected to the CPU 81 via a data bus (not shown) for exchanging data. Here, the storage device ROM 82 stores and holds fixed data such as a control program used for arithmetic processing. On the other hand, the storage device RAM 83 is provided with a storage area, a register area constituting a soft timer, a work area, and the like.

  In such a configuration, the indoor temperature sensor 50 and the globe temperature sensor 55 transmit the measured temperature data to the control device 80 as needed. Then, the CPU 81 that has determined that the data has been received temporarily stores the data in the storage device RAM 83. In addition, the CPU 81 transmits a control command signal for setting the decontamination target surface 13a of the globe 13 to a predetermined temperature to the power supply unit 58 for the cooling / heating unit at a predetermined timing. And the power supply part 58 for cooling / heating parts which received this signal makes the decontamination object surface 13a of the globe 13 predetermined temperature according to the said signal.

  Specifically, the control device 80 compares the temperature data transmitted by the indoor temperature sensor 50 with the temperature data transmitted by the globe temperature sensor 55, and the surface temperature of the decontamination target surface 13a When it is determined that the temperature is higher than the temperature, the control content of transmitting a control command signal for lowering the surface temperature of the decontamination target surface 13a to the room temperature is provided to the power source unit 58 for the cooling / heating unit.

  Thereby, condensation in the decontamination object surface 13a which concerns on the globe 13 is accelerated | stimulated, and the decontamination of the globe 13 will advance rapidly.

  In addition, a well-known material can be utilized suitably as a translucent material which comprises the translucent part for a detection which concerns on this invention.

It is a vertical side view of the isolator 1. It is explanatory drawing which shows the globe 13 and the condensation detection apparatus A which concern on a 1st Example. It is explanatory drawing which shows the horizontal support plate 20a for light projectors, and the horizontal support plate 24a for light receivers. 4 is an explanatory diagram showing a condensed film 30. FIG. It is explanatory drawing which shows the condensation detection apparatus A1. It is explanatory drawing which shows the condensation detection apparatus A2. It is explanatory drawing which shows the globe 13b provided with the translucent part 13d. It is explanatory drawing which shows the globe 13 etc. which concern on a 2nd Example. It is explanatory drawing which shows the mounting aspect of the member temperature change apparatus. It is a block circuit diagram of the isolator 1a which concerns on a 3rd Example.

Explanation of symbols

1,1a Isolator 3 Work openings 13, 13b Globe 13a, 13e Decontamination target surface 15 Chamber wall 21 Irradiation unit 20 Light projection device 20a Light projection device horizontal support plate 24 Light reception device 24a Light reception device horizontal support plate 25 Light reception Part 35 Translucent surface for detection 40 Low-temperature gas supply device 41 Gas inlet tube 42 Gas inlet tube tip 43 Gas inlet tube proximal end 44 Gas outlet tube 45 Gas outlet tube distal end 46 Gas outlet tube proximal end 50 Indoor temperature Sensor 55 Glove temperature sensor 60 Member temperature changing device 70 Decontamination space 71 Decontamination room outer space A, A1, A2 Condensation detection device

Claims (8)

The decontamination target of the isolation flexible member connected in an airtight manner so as to protrude to the indoor side or the outdoor side to the working opening provided on the chamber wall of the decontamination chamber into which the decontamination gas is introduced. A method for decontamination of an isolation flexible member for condensing the decontamination gas on a surface and decontaminating the surface of the decontamination target,
Amount of light received by irradiating light on a translucent surface for detection made of a translucent material formed on at least a part of the surface to be decontaminated according to the isolation flexible member, and passing through the translucent surface for detection The decontamination management is performed on the surface of the decontamination flexible member by controlling the decontamination gas introduced into the decontamination chamber based on the measured value. Method for decontamination of isolated flexible member. The decontamination target of the isolation flexible member connected in an airtight manner so as to protrude to the indoor side or the outdoor side to the working opening provided on the chamber wall of the decontamination chamber into which the decontamination gas is introduced. A condensing detection device for an isolation flexible member that detects that the decontamination gas has condensed on the surface,
A light projecting device comprising an irradiating unit for irradiating light in one direction;
A light receiving unit that receives light from the light projecting device, and a light receiving device that generates a voltage output substantially proportional to the amount of light received;
A translucent surface for detection formed on at least a part of the surface of the decontamination target related to the isolation flexible member is disposed between the irradiation unit of the light projecting device and the light receiving unit of the light receiving device, and is irradiated from the irradiation unit. A condensing detection device for an isolated flexible member, wherein the light passes through a light-transmitting surface for detection. The isolation flexible member is configured to be airtightly connected to the working opening so as to protrude indoors,
In the decontamination room, in the decontamination space to be decontaminated,
A light projecting device support member for supporting the light projecting device;
The condensing detection device for an isolation flexible member according to claim 2, further comprising a light receiving device support member that supports the light receiving device.   3. The condensation detection device for an isolation flexible member according to claim 2, wherein at least one of the light projecting device and the light receiving device is disposed in a space outside the decontamination chamber communicating with the atmosphere outside the decontamination chamber. On the surface to be decontaminated of the isolation flexible member connected in an airtight manner so as to protrude to the indoor side at the working opening provided on the chamber wall of the decontamination chamber into which the decontamination gas is introduced. A method for decontamination of an isolation flexible member that condenses the decontamination gas and decontaminates the decontamination target surface,
The decontamination management is characterized in that the surface temperature of the decontamination target surface related to the isolation flexible member is set to be equal to or lower than the room temperature of the decontamination chamber, and the decontamination target surface related to the isolation flexible member is decontaminated. Decontamination method for flexible members.   A saddle-shaped gas introduction pipe is inserted into the isolation flexible member from the outside through the working opening, and the distal end of the gas introduction pipe is arranged inside the isolation flexible member, and the proximal end is removed. The decontamination target of the isolation flexible member is connected to a low temperature gas supply unit that supplies a low temperature gas below the room temperature of the dyeing chamber, and the low temperature gas is introduced into the isolation flexible member by the gas introduction pipe. 6. The method for decontamination of an isolated flexible member according to claim 5, wherein the surface is set to a room temperature or less of the decontamination chamber.   A saddle-shaped gas discharge pipe is inserted into the isolation flexible member from the outside through the working opening, and the distal end of the gas discharge pipe is disposed inside the isolation flexible member, and the proximal end is removed. 7. The isolation flexible member decontamination method according to claim 6, wherein the isolation flexible member is disposed outside the dyeing chamber, and the gas existing in the isolation flexible member is discharged to the outside by the gas discharge pipe. A member temperature measuring device that measures the surface temperature of the surface and a member temperature changing device that changes the surface temperature of the surface are disposed on the surface to be decontaminated, and the decontamination chamber includes An indoor temperature measuring device for measuring the indoor temperature is disposed, and the surface temperature of the surface of the decontamination target measured by the member temperature measuring device is measured by the indoor temperature measuring device by the member temperature changing device. 6. The method for decontaminating an isolated flexible member according to claim 5, wherein:

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