JP2018046793A - Device for laboratory animal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for a laboratory animal, which needs no dedicated large-scale facility, lightens the load upon an experimenter at the time of moving the laboratory animal from a breeding apparatus to an experiment booth and can suppress the exposure-infection troubles at the time of transferring the laboratory animal.SOLUTION: A device 100 for a laboratory animal of the invention comprises: an experiment booth 1 for operating a laboratory animal; and a breeding unit 2 having one or more breeding rooms 20 and disposed adjacent to the experiment booth 1. The breeding room 20 has an opening 21 opened into the experiment booth 1, and a door 23 for opening or closing the opening 21.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a laboratory animal apparatus provided with both a breeding unit for breeding laboratory animals and an experimental booth for dissecting laboratory animals.

  Conventionally, when an experiment is performed using an experimental animal, the experimental animal is transferred from the breeding device to the transfer cage and moved to the experimental booth. However, when a plurality of experimental animals are repeatedly subjected to the same process, the transfer from the breeding apparatus to the transfer cage and the repeated movement from the breeding apparatus to the experiment booth are a heavy burden on the experimenter. In addition, exposure accidents in which the experimenter is infected with bacteria and viruses due to a decrease in the concentration of the experimenter and infection of the SPF animal are problematic.

  Therefore, Patent Document 1 proposes an experimental animal breeding apparatus in which a breeding apparatus having a plurality of breeding cages is integrally removed from a joint for ventilating and washing the breeding cages and moved together with casters.

  Patent Document 2 proposes an animal experiment facility that shortens the distance of movement of an experimenter by arranging a large number of animal breeding rooms so as to surround an animal laboratory provided in the center.

JP-A-6-276876 JP-A-7-107873

  However, in the apparatus of Patent Document 1 and the facility of Patent Document 2, in order to avoid the infection of people and animals when moving experimental animals to the experimental booth, the room where the experimenter moves, the differential pressure chamber, and the experimental booth are installed. There is a problem that a large-scale dedicated facility is required because it is necessary to air-condition all of them.

  The present invention has been made in view of the above problems, does not require a dedicated large-scale facility, reduces the burden on the experimenter when transferring the experimental animal from the breeding device to the experiment booth, The purpose is to provide a device for laboratory animals capable of suppressing infection accidents.

  The invention made to solve the above problems comprises an experimental booth for operating experimental animals, and a breeding unit having one or more breeding rooms and provided adjacent to the experimental booth, A device for experimental animals having an opening opening inside the experimental booth and a door for opening and closing the opening.

  Thus, the laboratory animal apparatus of the present invention is provided with a breeding unit adjacent to the experiment booth, and since the opening of the breeding room is opened inside the experiment booth, the door of the breeding room is opened. Thus, the experimental animal can be moved directly from the breeding room to the inside of the experimental booth without passing through the external space. Thereby, the movement of the experimenter when the experimental animal is moved from the breeding apparatus to the experiment booth can be eliminated, and the exposure accident of the experimenter and the infection of the experimental animal can be suppressed.

  The apparatus for experimental animals of the present invention comprises a floor covering replacement booth for replacing a floor covering of a breeding cage housed in the breeding room, the floor covering replacement booth provided adjacent to the experiment booth, and the experiment It is preferable to have a transfer port that opens into the booth and receives the breeding cage from the experimental booth. By doing this, since the breeding cage can be directly transferred from the experiment booth to the flooring exchange booth without passing through the external space, the movement of the experimenter when transferring the breeding cage can be greatly reduced, and It is possible to suppress the exposure accident of the experimenter accompanying the movement of the breeding cage.

  The experimental booth is provided with an air supply fan for supplying air from above, and the door is pivoted open so as to jump up the lower end side from a vertical posture, and then the breeding room along the upper wall of the breeding room It is preferable to be slid into the interior of the housing. In this way, by sliding the raised door into the breeding room and storing it, it is possible to avoid blocking the flow of air that the door descends in the experiment booth.

  As described above, according to the experimental animal apparatus of the present invention, it is possible to greatly reduce the movement of the experimenter when transferring the breeding cage from the breeding apparatus to the experiment booth without providing a large dedicated facility. It is possible to suppress the accident of exposure of the experimenter accompanying the movement of the breeding cage and the infection of the experimental animal.

It is a front view which shows the apparatus for laboratory animals which concerns on one Embodiment of this invention. It is the left view which permeate | transmitted and showed the inside of the apparatus for experimental animals of FIG. It is the right view which permeate | transmitted and showed the inside of the apparatus for experimental animals of FIG. It is the top view which showed the inside of the apparatus for experimental animals of FIG. It is the left view which showed the inside of the apparatus for experimental animals of FIG. It is the partial front view which showed the breeding unit shown in FIG. It is the right view which showed the inside of the breeding room of FIG. FIG. 2 is an air conditioning flowchart of the experimental animal apparatus of FIG.

Hereinafter, the experimental animal device 100 according to one embodiment of the present invention will be described in detail with reference to the drawings as appropriate. However, the present invention is not limited to the following embodiments.
The experimental animal device 100 is formed by appropriately decorating a stainless steel plate inside a housing 90 made of a rectangular parallelepiped box made of a coated steel plate, an experiment booth 1 for performing experimental operations such as dissection of experimental animals, and an experiment. A breeding unit 2 for breeding animals and a floor mat exchange booth 3 for exchanging floor mats (not shown) of breeding cages 24 and 25 for accommodating experimental animals are provided. A first ceiling chamber 4 and a first underfloor chamber 6 are provided above and below the experiment booth 1 and the breeding unit 2, respectively, and above and below the floor replacement booth 3, respectively, Two ceiling chambers 5 and a second underfloor chamber 7 are provided. Further, as shown in FIG. 3, a rear chamber 8 is provided behind the floor covering exchange booth 3.

  The experiment booth 1 is surrounded by a top wall 11, a left wall 12, and an experiment table 13 that forms a bottom wall, and is located forward (front side of the paper in FIG. 1), backward (back side of the paper in FIG. 1), and right It consists of a substantially rectangular parallelepiped room opened on the right side of FIG. As shown in FIG. 1, the opening 14 on the near side of the experimental booth 1 has a rectangular shape in front view and is opened and closed by a rectangular transparent vinyl slide curtain 15 that hangs down from the upper edge. The upper third of the opening 14 is covered with a transparent vinyl 16 from the outside in order to close the gap between the slide curtain 15 and the curtain rail. Between the lower edge of the slide curtain 15 and the experimental table 13, a gap 17 having substantially the same height as the breeding room 20 is provided.

  As shown in FIG. 5, the ceiling wall 11 of the experiment booth 1 is provided with a fluorescent lamp 11 a that illuminates the inside of the experiment booth 1 and an air supply port 11 b that supplies air from the first ceiling chamber 4 into the experiment booth 1. ing.

  On the left wall 12 of the experiment booth 1, as shown in FIG. 2, an operation unit 12 a for operating temperature / humidity and illumination of each part of the experimental apparatus for animals and a germicidal lamp 18 are provided.

  As shown in FIG. 4, the experimental table 13 has a rectangular shape whose front and rear direction (vertical direction in FIG. 4) is short, and is on the front side (lower side in FIG. 4) and right side (right side in FIG. 4). An experiment booth having a plurality of slits 13e, 13e,... Having side groove-shaped openings 13a, 13b provided along the edges and arranged along the longitudinal direction of the gratings 13c, 13d that close the openings 13a, 13b. 1 Exhaust air inside. A saran net filter is attached to the lower surface side of the gratings 13c and 13d.

  The opening on the right side of the experimental booth 3 constitutes the transfer port 31 of the floor replacement booth 3. A slide curtain 31 a is provided at the transfer port 31.

  The breeding unit 2 is provided adjacent to the rear of the experiment booth 1 and closes the rear of the experiment booth 1. As shown in FIG. 6, the breeding unit 2 has a breeding room 20 composed of a total of six rooms in two rows on the left and right and three levels on the top and bottom.

As shown in FIG. 6, the breeding room 20 is made of a stainless steel box and includes a double door type outer door 22 that opens and closes a front opening 21 and a flip-up type inner door 23. The inner door 23 has a transparent acrylic see-through window 23a in the center. As shown in FIG. 7, the inner door 23 is slid by sliding it along the rails 23 c provided at the upper portions of the left and right side walls of the breeding room 20 after being flipped up. It is accommodated along the upper wall of the breeding room 20.
As shown in FIG. 4, breeding cages 24 and 25 are housed inside the breeding room 20. The breeding cage 24 accommodates medium-sized laboratory animals such as rats, and one is housed in the breeding room 20. The breeding cage 25 accommodates small laboratory animals such as mice, and two can be accommodated in the breeding room 20. The breeding cages 24 and 25 are provided with case main bodies 24a and 25a made of a translucent resin container, and wire nets 24b and 25b that close the upper openings.
Moreover, as shown in FIG. 2, the breeding room 20 is provided with LED lighting 20c for day / night switching that illuminates the room from above the rear.

  As shown in FIG. 4, the breeding room 20 has an air supply port 20a on one side of the left and right side walls and an exhaust port 20b on the other side wall, and duct chambers 26, 28 provided outside the side walls. Supply / exhaust is performed via Further, a duct chamber 27 for circulating air for keeping the breeding room 20 warm is provided behind the breeding room 20 and between the upper and lower breeding rooms 20 and 20 (see FIG. 5). As shown in FIG. 6, an intake hole 28 a for taking in air from the inside of the experimental booth 1 is provided in the front surface of the duct chamber 28 on the downstream side with respect to the breeding room 20.

  As shown in FIG. 4, the floor replacement booth 3 is a rectangular parallelepiped room formed of a stainless steel plate and is opened adjacent to the right side of the experiment booth 1 and the breeding unit 2. . The floor replacement booth 3 includes a transfer port 31 that receives the breeding cages 24 and 25 from the experiment booth 1, a work table 32 on which the transferred breeding cages 24 and 25 are placed and the floor replacement is performed, An opening 34 and a slide curtain 15 that closes the opening 34 are provided. The work table 32 forms the bottom wall of the floor replacement booth 3, and the upper surface is flush with the upper surface of the experimental table 13 of the experimental booth 1. Between the slide curtain 15 and the work table 32, a gap 37 having a height substantially the same as that of the breeding room 20 is provided.

  As shown in FIG. 4, a partition wall 19 is provided between the breeding unit 2 and the bedding exchange booth 3, while the experiment booth 1 and the bedding exchange booth 3 communicate with each other through a transfer port 31. As shown in FIG. 3, a germicidal lamp 38 is provided on the right wall 33 of the floor replacement booth 3, and a water supply tank 36 for supplying pure water to the humidifier 66 is placed on the shelf 35 a of the rear wall 35. Has been.

  As shown in FIG. 3, the work table 32 has a side groove-shaped opening 32a along the front edge, and as shown in FIG. 4, the work table 32 is juxtaposed along the longitudinal direction of the grating 32c that closes the opening 32a. The air inside the floor replacement booth 3 is exhausted from a large number of slits 32e. In addition, the work table 32 has a large lid 32f that opens the lower second floor chamber 7 below the upper floor replacement booth 3 by jumping backward, and a small lid 32g at the center. .

  As shown in FIG. 2, the first ceiling chamber 4 has a rectangular parallelepiped box shape and is placed on the experiment booth 1 and the breeding unit 2. The first ceiling chamber 4 includes an air inlet 43 provided with a pre-filter made of a nylon nonwoven fabric on the front wall, and includes an air supply fan 41 and a HEPA filter 42 inside.

  As shown in FIG. 3, the second ceiling chamber 5 has a rectangular parallelepiped box shape and is placed on the floor replacement booth 3. The second ceiling chamber 5 is divided into two chambers, an air supply chamber 54 on the front side (left side in FIG. 3) and an exhaust chamber 55 on the rear side (right side in FIG. 3). An air supply fan 51 and a HEPA filter 52 are provided, and air is sucked from an intake port 53 (see FIG. 1) provided on the front wall. The exhaust chamber 55 has an exhaust port 56 on the side surface, and exhausts air sent from the rear chamber 8.

  As shown in FIG. 1, the first underfloor chamber 6 includes a breeding room air supply fan 61 that supplies air into the breeding room 20, a breeding room exhaust fan 62 that exhausts air from the breeding room 20, and a duct room 27. A circulation fan 63 (see FIG. 8) that circulates air, a cooling unit 64 that cools, heats, and humidifies the air supplied to the breeding room 20 and the duct room 27, a heater 65, and a humidifier 66 are provided. Air is supplied from the breeding room air supply fan 61 to the breeding room 20 via the HEPA filter 67.

  As shown in FIG. 3, the second underfloor chamber 7 is provided with a waste sealing device 71 and a waste stocker 72 for storing the sealed waste. The waste sealing device 71 encloses the waste such as used flooring put into the second underfloor chamber 7 through the small lid 32g (see FIG. 4) into the resin tube 71a by the heat sealer 71b.

  As shown in FIG. 3, the rear chamber 8 is provided with an exhaust prefilter 81a, a photocatalyst unit 81, and an exhaust fan 82, and the first underfloor chamber 6 and the second underfloor chamber via the rear duct chamber 69. 7 is deodorized and sterilized and discharged from the exhaust port 56 through the exhaust chamber 55.

  Next, a method for using the experimental animal device 100 and actions and effects of the configuration of each part will be described. First, when breeding an experimental animal in the breeding unit 2, the operation unit 12a is operated to set the temperature / humidity of the breeding room 20, the lighting on / off time, the illuminance, etc., and then the operation of the breeding unit 2 is started. To do. When the operation of the breeding unit 2 is started, the air supply fan 41 of the first ceiling chamber 4, the air supply fan 61 of the breeding room in the first underfloor chamber 6, the exhaust fan 62 of the breeding room, the circulation fan 63, and the rear chamber 8 The exhaust fan 82 is activated, and air is supplied to the experiment booth 1 from the intake port 43 of the first ceiling chamber 4 through the supply fan 41, the HEPA filter 42, and the supply port 11b. At the same time, air is also sucked into the experiment booth 1 from the gap 17 between the slide curtain 15 and the experiment table 13.

Part of the air supplied into the experiment booth 1 is sucked into the duct chamber 28 from the intake hole 28a (see FIG. 6), and the other part is taken from the openings 13a and 13b (slit 13e) of the experiment table 13. It is discharged into the first underfloor chamber.
As shown in FIG. 8, the temperature of the air sucked into the duct chamber 28 is adjusted by the cooling unit 64 and the heater 65, and then a part of the air is sent to the duct chamber 27 through the circulation fan 63 and reared. The chamber 20 is kept warm. In addition, the other part of the temperature-controlled air is humidified by the humidifier 66, and supplied to the breeding room 20 from the feed port 20a via the breeding room air supply fan 61, the HEPA filter 67, and the duct chamber 26. After that, the gas is discharged from the exhaust port 20b to the duct chamber 28. Part of the air exhausted into the duct chamber 28 is exhausted to the first underfloor chamber 6 by the breeding room exhaust fan 62 via the prefilter 62a, and the first underfloor chamber passes from the experiment booth 1 through the openings 13a and 13b. 6 and the exhaust pre-filter 81a and the photocatalyst unit 81, the exhaust fan 82 discharges the air to the outside of the experimental animal apparatus 100.
When the indoor environment of the breeding room 20 reaches a predetermined temperature and humidity, the experimental animals placed in the breeding cages 24 and 25 are carried into the experiment booth 1 through the gap 17 of the slide curtain 15 and then the outer door 22. The inner door 23 is opened and accommodated in the breeding room 20. When opening the inner door 23, it is lifted and opened, and then slid into the breeding room 20 and accommodated. By doing so, it is possible to avoid the inner door 23 from obstructing the air descending in the experiment booth 1.

Next, when conducting an experiment using experimental animals, the outer door 22 and the inner door 23 are opened, and the breeding cages 24 and 25 containing the experimental animals are taken out and placed on the experimental table 13.
Thus, since the breeding room 20 is adjacent to the experiment booth 1, the experimenter can move the experimental animals from the breeding room 20 to the experiment booth 1 without moving.
In addition, since the inside of the breeding room 20 and the inside of the experiment booth 1 communicate with each other, the laboratory animals can be moved from the breeding room 20 to the experiment booth 1 without passing through the external space, and the experimenter and the laboratory animals are infected. Can be suppressed.

When exchanging the flooring of the breeding cages 24, 25, the air supply fan 51 is started, air is taken into the second ceiling chamber 5 from the air inlet 53, and this air is exchanged through the HEPA filter 52. Supply to booth 3. Air supplied to the floor replacement booth 3 is discharged from the opening 32a (slit 32e) into the second underfloor chamber 7, and is exhausted from the laboratory animal apparatus 100 via the rear chamber 8 by the exhaust fan 82. Is discharged.
When the air supply fan 51 is activated, the old breeding cages 24 and 25 containing the experimental animals are taken out to the experiment booth 1 as described above, and at the same time, the new breeding cage 24 that has been cleaned and disinfected and laid a new flooring is provided. , 25 are carried into the experimental booth 1 through the gap 17. Subsequently, the experimental animals are taken out of the old breeding cages 24 and 25 and transferred to the new breeding cages 24 and 25. The new breeding cages 24 and 25 containing the experimental animals are returned to the breeding room 20, and the old breeding cages 24 and 25 from which the experimental animals have been taken out are carried into the floor replacement booth 3 through the transfer port 31.
At this time, since the upper surface of the experimental table 13 and the work table 32 are provided flush with each other, the breeding cages 24 and 25 can be slid and moved from the experimental table 13 to the work table 32.
When the breeding cages 24 and 25 are carried into the floor covering exchange booth 3, the floor covering inside the breeding cages 24 and 25, wastes such as animal hair and feces are taken out, the small lid 32g of the work table 32 is opened, and the floor is opened. The floor is put into the resin tube 71a. Then, the heat sealer 72b of the waste sealing device 71 is operated by the foot switch 71c to seal the waste. The breeding cages 24 and 25 that have been emptied by processing the waste are taken out from the gap 37 to the outside of the floor replacement booth 3 and transferred to equipment for cleaning and sterilization.

  Thus, since the floor replacement booth 3 is provided adjacent to the experiment booth 1, the floor replacement can be performed with little movement by the experimenter. Moreover, since the floor replacement booth 3 communicates with the experiment booth 1 through the transfer port 31, the breeding cages 24 and 25 are transferred from the experiment booth 1 to the floor replacement replacement booth 3 without passing outside. it can.

  The apparatus for laboratory animals of the present invention is not limited to the above-described embodiment, and for example, an experimental booth, an animal breeding unit, and a floor mat exchange booth can be detachably attached to each other so that they can be purchased sequentially according to the budget. Good. Moreover, the apparatus for laboratory animals of this invention does not need to be equipped with a floor replacement booth, and the inner door of a breeding room may not be a flip-up type.

Laboratory animal device 100
Experiment booth 1
Rearing unit 2
Breeding room 20
Opening 21
Inner door (door) 23
Floor replacement booth 3
Transfer port 31
Air supply fan 41

Claims (3)

An experiment booth that operates experimental animals,
A breeding unit having one or a plurality of breeding rooms and provided adjacent to the experimental booth;
The breeding room is an apparatus for laboratory animals having an opening that opens into the experiment booth and a door that opens and closes the opening. A floor replacement booth for replacing the floor of the rearing cage stored in the rearing room;
The apparatus for laboratory animals according to claim 1, wherein the floor replacement booth is provided adjacent to the experiment booth and has a transfer port that opens into the experiment booth and receives the breeding cage from the experiment booth. The experimental booth includes an air supply fan for supplying air from above,
3. The door according to claim 1 or 2, wherein the door is pivoted and opened so as to be flipped up from the vertical posture, and then slid into the breeding room along the upper wall of the breeding room. A device for laboratory animals as described in 1. above.

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