WO2015174394A1 - 培養通気栓、蓋体キットおよび培養通気栓用の枠体 - Google Patents
培養通気栓、蓋体キットおよび培養通気栓用の枠体 Download PDFInfo
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- WO2015174394A1 WO2015174394A1 PCT/JP2015/063579 JP2015063579W WO2015174394A1 WO 2015174394 A1 WO2015174394 A1 WO 2015174394A1 JP 2015063579 W JP2015063579 W JP 2015063579W WO 2015174394 A1 WO2015174394 A1 WO 2015174394A1
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- WIPO (PCT)
- Prior art keywords
- vent plug
- culture
- frame
- opening
- lid
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/38—Caps; Covers; Plugs; Pouring means
Definitions
- the present invention relates to a culture vent plug, a lid kit, and a frame for a culture vent plug.
- a vent plug provided with a porous vent plug body has been used as a plug of a culture vessel for culturing microorganisms or the like.
- the porous vent plug body is provided with a vent hole that can realize air permeability satisfying aerobic properties of microorganisms to be cultured.
- Patent Document 1 discloses a culture / breeding container composed of an elastic foam in which a closed cell structure in which bubbles are isolated from each other by a partition wall and an open cell structure in which a part of the partition wall that isolates the bubbles is broken are mixed.
- An invention of a plug body is disclosed. Specifically, a vent plug using an elastic foam molded body such as silicone rubber is disclosed.
- a vent plug (hereinafter, also referred to as “prior art 1”) which is a one-piece integrally formed product using an elastic foam molded body such as silicone rubber is disclosed.
- Prior art 1 is a one-piece integral molding using an elastic foam molding. Therefore, when the prior art 1 is crimped to the inner peripheral surface of the container mouth portion of the culture vessel and closes the container mouth portion, it becomes narrow in the vicinity of the container mouth portion. As a result, there is a problem that the air holes provided inside the elastic foam molded body are crushed and the air permeability is lowered.
- Prior Art 2 there is a plug-type vent plug (hereinafter also referred to as Prior Art 2) configured by assembling a disk-shaped vent plug body (plug body) to a frame body (frame member) by bonding or integral molding. It is disclosed.
- Prior art 2 has a structure in which a vent plug body (plug body) is integrally fixed to an inner peripheral surface of a frame body (frame member) that is a cylindrical body.
- the frame body in the prior art 2 is made of relatively elastic plastics such as substantially spindle-shaped polyethylene or hard rubber (see paragraph [0019] of the same document). Therefore, when the vent plug which is the prior art 2 is pressure-bonded to the inner peripheral surface of the container mouth portion of the culture vessel and the container mouth portion is closed, the vent stopper body can be protected by the frame. Therefore, in the closed state, the vent plug body in the prior art 2 is less likely to become narrower than the prior art 1, and the problem that the vent hole is crushed can be improved.
- the prior art 2 has the following problems. That is, since the prior art 2 is composed of a frame body and a vent plug body, the structure is more complicated than the vent plug integrally molded as in the prior art 1. Therefore, Prior Art 2 has a problem that it is difficult to clean.
- the vent plug when used repeatedly, the vent plug is generally sterilized at a high temperature after washing. After the high temperature sterilization treatment, when cooled to room temperature, water droplets adhere to the vent plug, so it is necessary to dry it sufficiently.
- the prior art 2 has a complicated structure of the vent plug as compared with the prior art 1, so that water droplets are likely to remain in the details of the vent plug and drying may be insufficient.
- contamination contamination in which various bacteria are mixed into the culture tends to occur.
- the present invention has been made in view of the above problems. That is, the present invention provides a culture vent plug, a lid kit, and a frame for a culture vent plug that have a structure in which a decrease in air permeability is improved when the container mouth is closed, and that are excellent in cleaning and sterilization. provide.
- the culture vent plug of the present invention comprises a vent plug body capable of ensuring ventilation between the inside and the outside of the culture container, a holding part for holding the vent plug body, and a mounting part detachable from the container opening of the culture container. And the vent plug main body is held by the holding portion so as to be repeatedly detachable from the frame body.
- the lid kit of the present invention includes a plurality of lids that are used in the culture vent plug of the present invention and are repeatedly detachably attached to the exposed end exposed from the container opening of the frame, and the plurality of lids are The color of the outer peripheral surface of one of the lid bodies is different from the color of the outer peripheral surface of the other lid body.
- the frame for the culture vent of the present invention is used in the culture vent plug of the present invention, and a mounting part that repeatedly and detachably holds the vent plug body, and a mounting that is repeatedly and detachably attached to the container opening of the culture container It comprises a part.
- the vent plug main body is mounted on the frame, the vent plug main body is unlikely to be narrowed when the container mouth is closed.
- the vent plug body since the vent plug body is repeatedly detachably attached to the frame body, the frame plug body and the vent plug body can be individually washed after the culture is completed by removing the vent plug body from the frame body. Therefore, a person who has washed the culture vent plug can easily wash the culture vent plug of the present invention sufficiently in detail.
- the culture vent plug of the present invention can individually sterilize and dry the frame and the vent plug body individually, and can easily remove water droplets adhering after the high-temperature sterilization treatment by simplifying the structure. Is called.
- the culture vent plug of the present invention can be used repeatedly by combining the thoroughly cleaned and sterilized frame and the vent plug main body into a clean culture vent plug.
- the lid kit of the present invention has a plurality of lids with different colors on the outer peripheral surface, and identifies a plurality of culture vessels equipped with culture vents using the lid for each color of the lid. be able to. For example, by changing the color of the lid for each culture condition for a plurality of culture containers having different culture conditions, the culture containers having different culture conditions can be easily identified visually.
- the culture vent plug frame of the present invention can be handled separately from the vent plug body. Therefore, in the culture vent plug of the present invention, it is possible to meet the demands that only the frame is washed, sterilized at high temperature, dried, or replaced.
- FIG. 1 is an overall view of a culture vent plug illustrating a culture vent plug according to a first embodiment of the present invention, showing a state where the culture vent plug is mounted. It is a side view of the culture aeration faucet of a first embodiment of the present invention, and shows the state where the aeration faucet main part and the lid were removed from the frame. It is the III-III sectional view taken on the line of the culture vent plug of 1st embodiment shown in FIG. It is sectional drawing of the culture vent plug which illustrates the culture vent plug of 2nd embodiment of this invention.
- the end of the culture vent of the present invention in the state of being attached to the culture container is referred to as the distal end, and the end opposite to the distal end is referred to as the proximal end.
- a predetermined length region including the base end is referred to as a base end portion, and a predetermined length region including the tip end is referred to as a front end portion.
- the direction connecting the distal end and the proximal end may be referred to as the distal proximal direction.
- the term “inner peripheral surface” or “outer peripheral surface” may be used as appropriate.
- the inner peripheral surface means a surface facing the axial center of the frame
- the outer peripheral surface means a surface not facing the axial center.
- the up-down direction said regarding a cover body is not prescribed
- FIG. 1 is an overall view of a culture vent plug 100 illustrating a culture vent plug according to the first embodiment of the present invention, and shows a state where the culture vent 900 is mounted.
- FIG. 2 is a side view of the culture vent plug 100 according to the first embodiment of the present invention, and shows a state where the vent plug body 20 and the lid body 30 are removed from the frame body 10.
- 3 is a cross-sectional view taken along the line III-III of the culture vent plug 100 shown in FIG. In FIG. 3, the culture vessel 900 is not shown.
- the culture vent plug 100 has a vent plug body 20 and a frame body 10.
- the vent plug body 20 can ensure ventilation between the inside and outside of the culture vessel 900.
- the frame 10 has a holding portion 22 (see FIG. 3) that holds the vent plug body 20 and a mounting portion 24 that can be attached to and detached from the container opening 910 of the culture vessel 900.
- the vent plug body 20 is held by the holding portion 22 so that it can be repeatedly attached to and detached from the frame body 10.
- vent plug body 20 can be repeatedly attached to and detached from the frame body 10 is as follows. That is, when the vent plug body 20 is removed from the frame body 10, the frame body 10 and the vent plug body 20 are not mechanically broken, chemically modified, or physically deformed. Means that the culture vent plug 100 in the same state as before removal can be formed.
- the entire interface between the holding unit 22 and the vent plug body 20 held by the holding unit 22 forms a microscopic air layer (not shown). That is, the culture vent plug 100 does not have an adhesive layer or a fusion layer for integrating the frame body 10 and the vent plug body 20 at the interface. Therefore, the vent plug body 20 can be removed from the frame body 10 non-destructively, and when the vent plug body 20 is held on the frame body 10 again, the state before removal can be easily reproduced. .
- the culture vent plug 100 is configured as a recess in which the holding portion 22 opens at the exposed end 120 that is one end of the frame body 10.
- An inner diameter 320 (see FIG. 2) of the recess is substantially uniform from the exposed end 120 that is one end of the frame body 10 toward the insertion end 110 that is the other end of the frame body 10.
- the inner diameter 320 of the concave portion may be reduced in diameter from the exposed end 120 that is the one end toward the insertion end 110 that is the other end of the frame body 10.
- the holding portion 22 can be appropriately designed so as to hold the vent plug body 20 with respect to the frame body 10 without departing from the spirit of the present invention.
- the concave portion that is the holding portion 22 includes a step 124 provided on the inner peripheral surface 126 of the frame body 10, and an inner peripheral surface of the proximal end portion that is the inner peripheral surface 126 and includes the exposed-side opening 122. 126A.
- the vent plug body 20 is enclosed and held in the recess.
- the vent plug body 20 may be held by the holding portion 22 by frictional force by bringing the peripheral surface of the recess into contact with the outer peripheral surface of the vent plug body 20.
- the vent plug body 20 can be detachably attached to the frame body 10.
- substantially identical refers not only to the case where the inner diameter 320 of the recess and the diameter 330 of the vent plug body 20 are completely the same, but also to the case where the diameter 330 of the vent plug body 20 is slightly larger than the inner diameter 320 of the recess. It means to include any of the small cases.
- the diameter 330 of the vent plug body 20 can be made larger than the inner diameter 320 of the recess. As a result, pressure is generated between the proximal end inner peripheral surface 126A and the side surface of the vent plug body 20, and the holding state of the vent plug body 20 is stabilized.
- the ventilation is more effective than the inner diameter 320 of the recess. Even if the diameter 330 of the plug body 20 is small, the vent plug body 20 can be satisfactorily held. When the diameter 330 of the vent plug body 20 is smaller than the inner diameter 320 of the recess, the work of removing the vent plug body 20 from the frame body 10 is simple.
- the vent plug body 20 can ensure ventilation between the inside and outside of the culture vessel 900.
- the degree of breathability of the vent plug body 20 is not particularly limited.
- the degree of breathability is such that the aerobic property exhibited by microorganisms or cells such as cells cultured in the culture vessel 900 is satisfied.
- ceramics can be used as the vent plug body 20.
- the ceramic here refers to porous ceramics which are general ceramics including a metal oxide sintered body and exhibit the above air permeability.
- the ceramic can be selected from, for example, zirconia, alumina, silicon carbide, or aluminum nitride, but is not limited thereto.
- a ceramic having a porosity of 20% to 80% is preferably selected.
- Ceramics generally have a very high heat resistance of 1000 ° C. or higher, particularly 2000 ° C. or higher. Therefore, by forming the vent plug body 20 that can be removed from the frame 10 with ceramics, only the vent plug body 20 can be sterilized at a high temperature of several hundred degrees Celsius or even 1000 degrees Celsius or higher. In the culture vent plug 100, the vent plug body 20 which is a region through which gas permeates easily adheres dust and bacteria during culture. Therefore, it is very advantageous from the viewpoint of aseptically culturing to select ceramics having high heat resistance as the vent plug body 20 and to enable sterilization under severe temperature conditions.
- the heat resistance temperature of the members constituting the vent plug body 20 is higher than the heat resistance temperature of the members constituting the frame body 10. It is preferable.
- the sterilization treatment of the frame 10 may be performed separately from the vent plug main body 20.
- the culture vent 100 can remove the vent plug body 20 from the frame body 10, if the frame body 10 deteriorates prior to the ceramic ventilation valve body 20, only the frame body 10 is replaced with a new one. It may be exchanged and is economical.
- the vent plug body 20 in the present embodiment is not limited to ceramics, and can be appropriately configured with a breathable member.
- the member other than ceramics constituting the vent plug body 20 may be appropriately selected from, for example, a rubber molded body such as silicone rubber, or a foamed resin molded body such as a foamed chlorinated polyethylene molded body or a foamed polyurethane resin molded body. it can. All the members constituting the vent plug body 20 have air permeability.
- the member having air permeability includes, for example, open cells inside.
- the vent plug body 20 can be configured to be harder than the frame body 10.
- the comparison between the hardness of the vent plug body 20 and the frame body 10 can be made by measuring the Vickers hardness or the durometer hardness of the vent plug body 20 and the frame body 10 and comparing the measured values. More specifically, when both the vent plug body 20 and the frame body 10 are formed of an elastic body, the hardness of both can be measured with a durometer hardness meter and the hardness can be compared. Moreover, when both the vent plug main body 20 and the frame 10 are formed of a hard member, the hardness of both may be measured with a Vickers hardness meter and the hardness compared.
- one of the vent plug body 20 and the frame 10 is an elastic body and the other is a hard member such as ceramics
- the following effects are exhibited by configuring the vent plug body 20 to be harder than the frame body 10. That is, when the culture vent plug 100 is attached to the container opening 910 of the culture container 900, the flexible frame 10 follows the shape of the container opening 910, whereby the culture vent plug 100 is plugged with high airtightness. can do. Since the vent plug body 20 is harder than the frame body 10, distortion due to the shape deformation of the frame body 10 following the shape of the container opening 910 is not easily transmitted to the vent plug body 20. Therefore, the vent hole formed in the vent plug body 20 is not easily crushed, and a desired air permeability is ensured.
- the shape of the vent plug body 20 in the present embodiment is a flat shape such as a disk shape or a pellet shape.
- the thickness of the flat vent plug body 20 is not particularly limited as long as it allows ventilation inside and outside the culture vessel 900 and has an appropriate thickness that does not allow dust or germs to pass through.
- the shape of the vent plug body 20 may be other arbitrary shapes such as a columnar body, a cube, and a rectangular parallelepiped other than a flat shape.
- the thickness of the vent plug body 20 is a dimension of the vent plug body 20 in the distal end direction.
- the diameter of the vent plug main body 20 can be appropriately changed depending on the caliber of the culture vessel 900 that is symmetrical.
- a disk-shaped vent plug body 20 having a diameter of 14 mm and a thickness of about 6.5 mm can be prepared from ceramics. It is not limited at all.
- the vent plug main body 20 in the present embodiment is held by the frame body 10 so as to be positioned on the base end side with respect to the restriction portion 140. Therefore, the shape retention of the region (hereinafter also referred to as the gripping region) exposed from the culture vessel 900 when attached to the culture vessel 900 on the proximal end side of the culture vent plug 100 is good.
- the gripping region By having such a gripping region, when the culture vent plug 100 is attached to and detached from the culture vessel 900 (see FIG. 1), it is easy to grip the culture vent plug 100 by gripping the grip region, and the operability is good.
- the vent plug body 20 is made of a hard member such as ceramics and the frame body 10 is made of an elastic body such as silicone rubber, it is preferable to have the gripping region. This is because, when the gripping area is gripped, the frame body 10 can be firmly gripped by appropriate elastic deformation, and the shape of the gripping area can be satisfactorily maintained with the vent plug body 20 as a core. Details of the restricting unit 140 will be described later.
- the frame body 10 in the present embodiment is a member that constitutes the culture vent plug 100 together with the vent plug body 20, and constitutes the frame 10 for the culture vent plug as a single product.
- the frame body 10 is used for the culture vent plug 100, and includes a holding portion 22 that repeatedly holds the vent plug body 20 in a detachable manner, and a mounting portion 24 that is detachably attached to the container opening 910 of the culture vessel 900. .
- the vent plug body 20 can be repeatedly attached to and detached from the frame body 10
- only the frame body 10 can be replaced when the frame body 10 deteriorates.
- the vent plug body 20 deteriorates prior to the frame body 10
- only the vent plug body 20 may be replaced in the culture vent plug 100.
- the mounting portion 24 is a predetermined length region that includes the insertion side opening 112 of the frame body 10 and extends in the proximal direction.
- the culture vent plug 100 according to the present embodiment is mounted by being fitted into the container opening 910.
- the outer peripheral surface of the frame body 10 is the mounting surface 24 ⁇ / b> A
- the frame body 10 is mounted on the container opening 910 by the predetermined position of the mounting surface 24 ⁇ / b> A directly or indirectly contacting the container opening 910. Yes.
- the frame body 10 and the vent plug body 20 are provided in different regions in the distal end direction.
- the holding portion 22 is provided closer to the exposed side opening 122 than the middle in the proximal direction, and the mounting portion 24 is provided on the insertion side opening 112 side.
- the mounting portion 24 may be provided including the region where the holding portion 22 is provided.
- a part or all of the holding portion 22 may be provided.
- a mode of being fitted inside the culture vessel 900 may be used.
- the vent plug body 20 is formed of a hard member such as ceramics, sufficiently good air permeability can be ensured even when the holding portion 22 is fitted in the culture vessel 900.
- the frame 10 includes an insertion end 110 that can be inserted into the container opening 910, an exposed end 120 exposed from the container opening 910, an insertion side opening 112 provided at the insertion end 110, and an exposed side provided at the exposed end 120.
- This is a cylindrical body 12 having an air passage 130 communicating with an opening 122.
- the frame body 10 that is the cylindrical body 12 has a restricting portion 140 that restricts the insertion depth of the frame body 10 with respect to the culture vessel 900 at an intermediate portion in the distal end direction.
- the inner diameter of the exposure side opening 122 is configured to be larger than the inner diameter of the insertion side opening 112, and the vent plug body 20 is provided closer to the exposure side opening 122 than the restriction portion 140. Therefore, the vent plug body 20 is easy to attach and detach from the exposed side opening 122 side.
- the holding portion 22 described above is provided in a region including the exposed side opening 122 of the air passage 130.
- the ventilation path 130 is closed by the ventilation plug main body 20 held by the holding portion 22 so as to allow ventilation.
- the outer diameter of the insertion side opening 112 is configured to be smaller than the inner diameter of the container opening 910 of the culture container 900, whereby the mounting portion 24 of the frame 10 is fitted into the culture container 900 (see FIG. 1). .
- the restricting portion 140 in the present embodiment is configured by a taper in which the outer diameter of the frame body 10 continuously increases from the insertion end 110 toward the exposed end 120.
- the wall thickness t of the restricting portion 140 configured by the taper continuously increases from the insertion end 110 toward the exposed end 120.
- the outer diameter of the restricting portion 140 is tapered, whereas the inner diameter of the restricting portion 140 is substantially uniform in the proximal direction.
- the regulation part 140 which is a taper is a predetermined
- the frame body 10 is appropriately inserted into the culture vessel 900 with respect to the container opening 910 of the culture vessel 900 that is larger than the outer diameter size on the distal end side of the restricting portion 140 and is not more than the outer diameter size on the proximal end side of the restricting portion 140. Depth can be regulated.
- the culture vent plug 100 can appropriately adopt a configuration other than the taper as the restricting portion 140.
- the insertion depth of the frame body 10 into the culture vessel 900 is inserted. You may regulate the thickness.
- the frame 10 in this embodiment is provided with an elastic body.
- the phrase “the frame body 10 includes an elastic body” includes a case where the entire frame body 10 is formed of an elastic body and a case where the elastic body is provided on a part of the frame body 10.
- the elastic body include a rubber-like elastic body and a foamed resin body.
- Examples of rubber-like elastic bodies include synthetic rubbers containing resin materials such as silicone rubber, ethylene propylene diene rubber, urethane rubber, nitrile rubber, and fluorine rubber, or natural rubber, but are limited to the rubbers listed above.
- silicone rubber is preferable because it has good moldability and easily obtains desired elasticity as the frame body 10.
- the silicone rubber refers to a rubber-like member made of a synthetic resin (silicone resin) mainly composed of silicone.
- the rubber hardness of the rubber-like elastic body is measured by a durometer hardness meter. More specifically, for example, it can be measured by a type A durometer hardness tester based on JIS K 6253.
- the rubber hardness of the rubber-like elastic body is not particularly limited, but is preferably in the range of 40A to 80A, for example.
- the foamed resin body examples include, but are not limited to, a foamed resin molded body such as a silicone foam, a foamed chlorinated polyethylene molded body, and a foamed polyurethane resin molded body.
- the hardness of the foamed resin body can also be measured with a durometer hardness meter.
- a durometer hardness meter suitable for measuring sponge hardness can be selected.
- the durometer hardness of the foamed resin body is not particularly limited, but is preferably in the range of 20 to 45, for example.
- the hardness of the foamed resin body may be measured in accordance with, for example, the standard SRIS0101 of the Japan Rubber Association.
- the adhesion of the frame body 10 to the container opening 910 can be improved, and the airtightness between the frame body 10 and the culture container opening can be increased.
- the constituent members of the frame 10 can be determined in consideration of the hardness and heat resistance of the constituent members of the vent plug body 20 as described above.
- the dimensions of the frame 10 can be appropriately determined in consideration of the inner or outer diameter of the container opening 910 and the thickness and diameter of the vent plug body 20.
- the length of the restricting portion 140 in the front end direction can be about 30 mm, and the length from the base end side end of the restricting portion 140 to the exposed end 120 can be about 13 mm.
- the inner diameter of the frame 10 in the restricting section 140 may be about 11 mm, and the outer diameter may be appropriately determined according to the inner diameter of the container opening 910 of the target culture container 900.
- the above-mentioned dimension is an example of the present embodiment and does not limit the present invention.
- the holding part 22 adopts a common dimension that matches the prescribed vent plug body 20, and the outer diameter dimension of the mounting part 24 is the same in one frame body 10 and the other frame body 10. You may make them different.
- the culture vent plug 100 can be applied to various culture vessels 900 having different inner diameters of the container openings 910 by using the common vent plug body 20 and changing the frame 10 having different dimensions of the mounting portion 24. it can.
- the aspect in which the frame body 10 having a different size of the mounting portion 24 is appropriately replaced with respect to the common vent plug body 20 is an advantage that can be achieved in the present embodiment in which the vent plug body 20 can be repeatedly detached from the frame body 10. is there.
- a plurality of frame bodies 10 having the same dimensions of the holding part 22 and different dimensions of the mounting part 24 can be handled as a kit.
- the plurality of frames 10 have a plurality of holding parts 22 having the same dimensions and a plurality of mounting parts 24 having different inner diameters.
- the culture vent plug 100 further has a lid 30 as shown in FIGS. 1 to 3.
- the lid 30 is detachably attached to the exposed end 121 including the exposed end 120 of the frame 10 with the vent plug body 20 exposed (see FIG. 3).
- the lid 30 has a wall portion 32 provided in the circumferential direction and a ceiling portion 34 extending inward in the radial direction from one end portion of the wall portion 32.
- the ceiling part 34 has a ceiling opening 310 for exposing the vent plug body 20.
- the exposed end portion 121 is a region that is a part of the frame 10 and includes the exposed end 120 and extends in a predetermined length in the proximal direction.
- the one end portion of the wall portion 32 described above means a predetermined length region including one end surface of the wall portion 32.
- the ceiling part 34 includes both an aspect extending radially inward from one end face of the wall part 32 and an aspect extending radially inward from the vicinity of one end face of the wall part 32.
- the lid body 30 includes a wall portion 32 provided in the circumferential direction and a ceiling portion 34 extending inward in the radial direction from one end portion of the wall portion 32.
- the ceiling part 34 has a ceiling opening 310 for exposing the vent plug body 20.
- the lid 30 is open on the side facing the ceiling opening 310.
- the opening diameter of the ceiling opening 310 is configured to be substantially the same as the inner diameter of the insertion-side opening 112. Therefore, the lid body 30 does not limit the amount of ventilation allowed by the frame body 10 fitted in the container opening 910.
- the ceiling opening 310 in the present embodiment is a hole having a predetermined length in the distal end direction, and the opening diameter increases from the distal end toward the proximal end.
- the opening diameter 370 of the lower end opening 36A is smaller than the opening diameter 380 of the upper end opening 36B.
- the opening diameter 370 of the lower end opening 36 ⁇ / b> A in this embodiment is the minimum opening diameter of the ceiling opening 310 and may be substantially the same as the opening diameter 360 of the insertion side opening 112.
- the lid 30 is reduced in diameter from the upper end side opening (upper end opening 36B) of the ceiling opening 310 toward the lower end side opening (lower end opening 36A), as shown in FIG. .
- the ceiling opening 310 in the present embodiment is tapered from the lower end opening 36A toward the upper end opening 36B, and the opening diameter 380 of the upper end opening 36B is more than the opening diameter 370 of the lower end opening 36A. large.
- the following effects are exhibited as compared with the case where the opening diameter of the ceiling opening 310 is substantially the same from the upper end opening 36B to the lower end opening 36A. That is, in the above aspect, it is possible to design a larger opening diameter 380 of the upper end opening 36 ⁇ / b> B while securing more surface 250 of the ceiling portion 34 on the vent plug body 20 side. Thereby, the holding
- the gas or water vapor discharged from the inside of the culture vessel 900 equipped with the culture vent plug 100 is unlikely to stay at the periphery of the lower end opening 36A, and is released to the outside along the taper of the ceiling opening 310. Easy to do.
- the culture vent plug 100 may be configured such that the opening diameter of the ceiling opening 310 of the lid 30 is larger than the opening diameter 360 of the insertion-side opening 112 of the frame body 10.
- the culture vessel 900 in which the culture vent plug 100 is mounted is compared with an embodiment in which the opening diameter 360 of the insertion side opening 112 of the frame body 10 and the opening diameter 380 of the upper end opening 36B of the lid body 30 are substantially the same. 1)) and the outside air can be smoothly ventilated.
- the opening diameter of the ceiling opening 310 is not uniform, it is preferable that the maximum opening diameter of the ceiling opening 310 is larger than the opening diameter of the insertion side opening 112 of the frame body 10.
- the culture vent plug 100 may be configured such that the opening diameter of the ceiling opening 310 of the lid 30 is smaller than the opening diameter 360 of the insertion-side opening 112 of the frame body 10.
- the opening diameter of the ceiling opening 310 is not uniform, it is preferable that the maximum opening diameter of the ceiling opening 310 is smaller than the opening diameter of the insertion side opening 112 of the frame body 10.
- the ceiling opening 310, the vent plug body 20, and the vent passage 130 are continuous so as to allow ventilation (see FIG. 3).
- the lid body 30 is externally fitted to the frame body 10 when the inner peripheral surface of the wall portion 32 abuts against the outer peripheral surface of the holding portion 22.
- the ceiling portion 34 covers the base end side surface of the vent plug body 20.
- the opening diameter 370 of the lower end opening 36 ⁇ / b> A is configured to be smaller than the diameter 330 of the vent plug body 20. As a result, the lid 30 prevents the vent plug body 20 from falling off the holding portion 22.
- the inner peripheral surface of the frame 10 that is the cylindrical body 12 has a step 124 formed by discontinuously increasing the inner diameter from the insertion end 110 toward the exposed end 120. .
- the vent plug body 20 is sandwiched between the step 124 and the lid 30. Thereby, the mounting state of the vent plug body 20 in the culture vent plug 100 is stabilized. More specifically, the vent plug body 20 is placed on the step 124 and is sandwiched between the step 124 and the inner surface of the ceiling portion 34 of the lid 30.
- the outer diameter of the vent plug body 20 is substantially equal to the inner diameter of the exposed side opening 122. Therefore, the vent plug body 20 can be easily attached to and detached from the frame body 10 with the lid 30 removed.
- the user of the culture vent plug 100 disassembles and cleans the frame body 10, the vent plug body 20 and the lid body 30, and performs high-temperature sterilization treatment as necessary, and then cultivates aseptically in a clean bench. The operation of assembling the vent plug 100 can be easily performed.
- the member which comprises the cover body 30 is not specifically limited.
- the lid body 30 can be configured using a member similar to the member configuring the frame body 10.
- the constituent members of the lid body 30 and the frame body 10 may be the same or different.
- the lid 30 may be made of a resin suitable for injection molding such as vinyl chloride resin or polyethylene terephthalate.
- the frame body 10 and the lid body 30 are made of a rubber-like elastic body, and the rubber hardness of the frame body 10 is smaller than the rubber hardness of the lid body 30.
- the rubber-like elastic body constituting the frame body 10 and the rubber-like elastic body constituting the lid body 30 may be the same or different.
- the same kind of rubber-like elastic body means that the main components of the resin constituting the rubber-like elastic body are the same.
- a rubbery polymer compound mainly composed of silicone is said to be the same type even if the rubber hardness is different.
- a rubbery polymer compound mainly composed of silicone is different from a rubbery polymer compound having a urethane bond structure in the molecule.
- the rubber-like elastic body is the same as that described above with respect to the frame body 10, detailed description thereof is omitted here.
- the method for measuring the rubber hardness is not particularly limited.
- the rubber hardness of the rubber-like elastic body constituting the frame body 10 and the rubber-like elastic body constituting the lid body 30 may be measured under the same conditions. For example, as an example of a method for measuring rubber hardness, measurement using a type A durometer hardness meter in accordance with JIS K 6253 can be mentioned.
- the rubber hardness of the rubber-like elastic body constituting the frame 10 is 40A or more and less than 60A, and the rubber hardness of the rubber-like elastic body constituting the lid 30 is It is preferably 60A or more and 80A or less.
- the culture experiment is generally performed under a plurality of culture conditions such as using a plurality of culture vessels and different culture conditions.
- the plurality of lids 30 are color-coded, and the color of the lid used is unified for each same culture condition, so that culture containers with different culture conditions can be easily identified visually.
- the present invention includes a lid kit (not shown) including a plurality of lids 30.
- a lid kit (not shown) including a plurality of lids 30.
- the color of the outer circumferential surface of one lid 30 is different from the color of the outer circumferential surface of the other lid 30.
- the lid 30 included in the lid kit can be detachably mounted on the exposed end 121 used for the culture vent plug 100 and exposed from the container opening 910 of the frame 10.
- the lid body 30 used in the lid body kit broadly includes an aspect that does not have a function of sandwiching the vent plug body 20 or an aspect that fits in an arbitrary position on the outer periphery of the frame body 10 exposed from the container opening 910.
- the test tube used in the experimental group having the first medium concentration has an outer peripheral surface.
- the test tube used in the experimental group of the second medium concentration using the red lid 30 has the outer peripheral surface of the test tube used in the experimental group of the third medium concentration.
- a yellow lid 30 can be used. This makes it possible to distinguish between test tubes with different culture conditions at a glance without marking each test tube with a seal or the like.
- FIG. 4 is a cross-sectional view showing the culture vent plug 200 of the second embodiment.
- the cutting direction of the cross section is the same as the III-III line shown in FIG.
- the present embodiment is different from the first embodiment in the points described below, and the configuration of the first embodiment can be adopted as appropriate for other configurations of the present embodiment.
- the inner diameter of the insertion side opening 112 is substantially the same as the outer diameter of the container opening 910 (see FIG. 1).
- the culture vent 200 has a holding part 22 and a mounting part 240.
- the holding portion 22 is disposed on the proximal end side with respect to the mounting portion 240.
- An inner peripheral surface of the mounting portion 240 of the frame body 10 is a mounting surface 240A.
- the culture vessel 900 is inserted into the insertion side opening 112 so that the mounting surface 240A abuts the vessel opening 910 of the culture vessel 900 (see FIG. 1) and the outer peripheral surface in the vicinity thereof.
- the culture vent 200 can be externally fitted to the culture container 900.
- the inner peripheral surface of the culture vessel 900 is provided with a restricting portion 150 that is a step that discontinuously decreases in diameter from the distal direction toward the proximal direction. From the insertion side opening 112 to the restriction part 150, the culture vent 200 has substantially the same inner diameter.
- the culture vessel 900 inserted into the culture vent plug 200 from the insertion side opening 112 toward the proximal direction has its insertion depth with respect to the culture vent plug 200 regulated by the container opening 910 coming into contact with the regulating portion 150.
- the culture vent plug 200 is provided with a step 124 that is discontinuously expanded in diameter from the distal direction toward the proximal direction on the proximal end side with respect to the regulating portion 150.
- the holding portion 22 is configured by the step 124 and the inner peripheral surface located on the base end side from the step 124 of the frame body 10.
- the vent plug body 20 is held by a holding portion 22.
- the ceiling opening 310 in the present embodiment is a hole having a predetermined length in the distal end direction as shown in FIG. 4 and has the same diameter from the distal end toward the proximal end. That is, the opening diameter of the lower end opening 36A and the opening diameter of the upper end opening 36B in the culture vent plug 200 are substantially the same.
- the culture vent plug 100 according to the first embodiment and the culture vent plug 200 according to the second embodiment are used interchangeably with respect to the common vent plug body 20 by making the dimensions of the holding portion 22 the same. obtain.
- FIG. 5 is a side view showing the culture vent plug 300 of the third embodiment, and shows a state in which the vent plug body 20 and the lid body 30 are removed from the frame body 10.
- the present embodiment is different from the first embodiment in the points described below, and the configuration of the first embodiment can be adopted as appropriate for other configurations of the present embodiment.
- the culture vent plug 300 includes a frame body 10 made of a rubber-like elastic body, a lid body 30 made of a rubber-like elastic body, and a vent plug body 20 made of ceramics.
- the lid 30 is attached to the exposed end 121 (see FIG. 3).
- the vent plug body 20 is press-fitted into the holding portion 22, and the exposed end portion 121 is press-fitted into the lid body 30.
- Press-fitting refers to pushing in with pressure.
- the vent plug body 20 press-fitted into the holding part 22 is held by the holding part 22 in a state where the holding part 22 is pressed.
- the lid 30 press-fitted into the exposed end 121 is brought into close contact with the exposed end 121 and the lid 30 by pressing with each other.
- the culture vent plug 300 has a recess in which the diameter 330 of the vent plug body 20 opens at one end of the frame body 10. It is comprised larger than the internal diameter 320 of the holding
- the culture vent plug 300 is configured such that the outer diameter 350 of the exposed end 120 is equal to or larger than the inner diameter 340 of the lid 30.
- the vent plug body 20 attached to the frame body 10 is held in a state in which the holding portion 22 formed of a rubber-like elastic body is pushed outward in the radial direction. Further, along with this, the outer diameter 350 of the exposed end 120 of the frame body 10 expands outward in the radial direction.
- the inner diameter 340 of the lid 30 is expanded outward in the radial direction.
- the difference between the diameter 330 of the vent plug body 20 and the inner diameter 320 of the holding portion 22 that is a recess opened at one end of the frame body 10 is not particularly limited, but, for example, 0.5 mm or more and 3 mm or less It is preferable that Since the diameter 330 of the vent plug body 20 is 0.5 mm or more larger than the inner diameter 320 of the holding portion 22, the holding state when the vent plug body 20 is attached to the holding portion 22 can be significantly improved. Further, the value obtained by subtracting the inner diameter 320 of the holding portion 22 from the diameter 330 of the vent plug main body 20 is set to 3 mm or less, so that the holding portion 22 is deteriorated when the vent plug main body 20 is repeatedly attached to and detached from the frame body 10. Can be suppressed.
- FIG. 6 is a cross-sectional view of a culture vent plug 400 illustrating the culture vent plug of the fourth embodiment.
- the cutting direction of the cross section is the same as the III-III line shown in FIG.
- the present embodiment is different from the first embodiment in the points described below, and the configuration of the first embodiment can be adopted as appropriate for other configurations of the present embodiment.
- the outer peripheral surface 129 of the exposed end 121 of the frame body 10 and the inner peripheral surface 31 of the lid body 30 are both flat.
- the culture vent plug 400 is formed such that the lower end portion 38 of the wall portion 32 of the lid body 30 is continuously or intermittently thinned from the upper direction to the lower direction.
- the outer diameter of the lid 30 is reduced from the upper direction to the lower direction, and the lower end portion 38 has a tapered shape that tapers downward.
- the term “flat” does not mean the smoothness when observed microscopically, but means that the surface is flat enough to have no intentionally provided uneven shape.
- the lower end part 38 shown in FIG. 6 showed the example formed continuously thinly toward the downward direction from the upper direction.
- the lid 30 can be easily attached to and detached from the frame 10. More specifically, the outer peripheral surface 129 of the exposed end portion 121 of the frame body 10 and the inner peripheral surface 31 of the lid body 30 in this aspect are not caught with each other due to a physical uneven shape or the like. In addition, since the lower end portion 38 of the wall portion 32 of the lid 30 is formed thinner from the upper direction toward the lower direction, the lower end portion 38 is more flexible than the other regions of the wall portion 32. Therefore, the operation of fitting or removing the lid 30 on the exposed end 121 is easy.
- the culture vent plug 400 has the following effects. That is, in the culture vent plug 400 attached to the culture container 900 (see FIG. 1), when the grip region exposed from the culture container 900 is gripped, it is difficult for a finger to be caught on the lower end portion 38 of the wall portion 32, and the lid 30. In addition, it is easy to grip the entire culture vent plug 400. Therefore, the operability when the culture aeration plug 400 is attached to and removed from the culture vessel 900 is good.
- the vent plug body can be repeatedly attached to and detached from the frame. Due to such characteristics, the culture vent plug of the present invention exhibits various advantageous effects not found in conventional culture vent plugs.
- the description described below shows an example of an advantageous use example of the present invention, and does not limit the present invention.
- the user can simplify the structure by disassembling the culture vent plug of the present invention used in the culture vessel into a vent plug body and a frame.
- the user can wash the aeration faucet body and the frame individually, so that it is easier to wash and the degree of washing compared to a conventional culture aeration faucet in which the aeration faucet body and the frame are integrally formed. Can feel high.
- the user can subject the individually cleaned vent plug body and frame body to high-temperature sterilization treatment in an individual state. At this time, high temperature sterilization may be performed at different temperatures in consideration of the heat resistance of the vent plug body and the frame.
- the aeration faucet body is a part where gas flows inside and outside the culture container, so that dust and germs are likely to adhere to it, and it is desirable that sterilization is particularly sufficiently performed among the culture aeration faucets. Therefore, the vent plug main body can be selectively sterilized at a high temperature by forming the vent plug main body with a member having high heat resistance (for example, ceramics). For one of the frames, an appropriate high-temperature sterilization condition may be set in consideration of the heat resistance of the members constituting the frame. Thirdly, after the high temperature sterilization treatment, the user can dry the vent plug main body and the frame body individually subjected to the high temperature sterilization treatment in an individual state.
- the user can sufficiently dry the aeration plug main body and the frame body which are in an individual state in a short time as compared with the conventional culture aeration plug.
- the vent plug main body and the frame body sufficiently dried as described above are easily reassembled as a culture vent plug by the user and used again as the culture vent plug.
- the user uses the culture vent of the present invention for the culture container, and after repeating washing and drying a plurality of times, only the one that has deteriorated first of the frame and the vent plug body, Can be exchanged for a new one. Therefore, the culture vent plug of the present invention is excellent in terms of economy.
- the vent plug body may be made of ceramics
- the frame body may be made of an elastic member such as rubber or soft resin. Accordingly, the main body of the vent plug can be subjected to high-temperature sterilization treatment at a sufficiently high temperature, and the culture vent plug can be attached to the culture container with high airtightness due to the flexibility of the frame. Further, when a vent plug body made of ceramics is attached to a frame body made of an elastic body such as rubber, the vent plug body is protected from physical impact by the frame body.
- the above embodiment includes the following technical idea.
- a vent plug body capable of ensuring ventilation between the inside and the outside of the culture container, a holding section for holding the vent plug body, and a frame body having a mounting section detachable from the container opening of the culture container;
- the holding portion is a recess that opens at one end of the frame
- the frame includes an insertion end that can be inserted into the container opening, an exposed end that is exposed from the container opening, an insertion side opening that is provided at the insertion end, and an exposed side that is provided at the exposed end.
- the above (1) to (6) which is a cylindrical body having an air passage that communicates with the opening, and a restricting portion that is provided at an intermediate portion in the distal end direction and restricts the insertion depth of the frame body with respect to the culture vessel.
- the culture vent plug according to any one of the above.
- An inner diameter of the exposed side opening is larger than an inner diameter of the insertion side opening,
- the restricting portion is configured by a taper in which an outer diameter of the frame body continuously increases from the insertion end toward the exposed end.
- the lid body has a wall portion provided in a circumferential direction and a ceiling portion extending inward in the radial direction from one end portion of the wall portion,
- the inner peripheral surface of the frame body that is the cylindrical body has a step formed by increasing the inner diameter discontinuously from the insertion end toward the exposed end,
- the frame body and the lid body are made of a rubber-like elastic body, The culture vent plug according to any one of (10) to (13), wherein the rubber hardness of the frame is smaller than the rubber hardness of the lid.
- a frame for a culture aeration plug comprising a mounting portion to be mounted.
- the culture aeration plug according to (20) which is a cylindrical body having a ventilation path that communicates with each other, and a regulation portion that regulates an insertion depth of the frame body with respect to the culture vessel at an intermediate portion in a distal end direction. Frame.
Abstract
Description
従来技術1は、弾性発泡成形体を用いてなる一材一体成形物である。そのため、従来技術1が培養容器の容器口部の内周面に圧着されて当該容器口部を閉止したとき、容器口部の付近において狭窄となる。これにより弾性発泡成形体の内部に設けられた通気孔が押し潰されて通気性が低下するという問題がある。
また通気栓本体は枠体に対し繰り返し着脱可能に保持されているため、培養終了後、枠体から通気栓本体を離脱させ、枠体と通気栓本体とを個別に洗浄することができる。そのため、培養通気栓の洗浄者は、容易に、本発明の培養通気栓を細部まで充分に洗浄することができる。
加えて、本発明の培養通気栓は、枠体および通気栓本体を個別に高温滅菌処理および乾燥することが可能であり、構造の簡素化により高温滅菌処理後に付着する水滴の除去が良好に行われる。
本発明の培養通気栓は、充分に洗浄、滅菌がなされた枠体と通気栓本体とを再度組み合わせて清浄な培養通気栓とし、繰り返し使用することが可能である。
なお、本発明の説明では図示するように上下の方向を規定して説明する場合がある。しかし、これは構成要素の相対関係を簡単に説明するために便宜的に規定するものであり、本発明を実施する製品の製造時や使用時の方向を限定するものではない。
本発明の各種の構成要素は、個々に独立した存在である必要はなく、複数の構成要素が一個の部材として形成されていること、一つの構成要素が複数の部材で形成されていること、ある構成要素が他の構成要素の一部であること、ある構成要素の一部と他の構成要素の一部とが重複していること、等を許容する。
また本発明を説明するにあたり、適宜、内周面または外周面という言葉を用いる場合がある。特段の説明がない場合には、上記内周面は枠体の軸心に対向する面を意味し、上記外周面は、上記軸心に非対向の面を意味する。また蓋体に関して言う上下方向は、重力方向によって規定されるものではなく、蓋体における相対的な位置関係を示している。より具体的には、枠体に装着された蓋体において、枠体の露出端側を上方向とし、挿入端側を下方向という。
以下に、本発明の培養通気栓の第一実施形態である培養通気栓100について図1から図3を用いて説明する。
図1は、本発明の第一実施形態の培養通気栓を例示する培養通気栓100の全体図であり、培養容器900に装着された状態を示す。
図2は、本発明の第一実施形態の培養通気栓100の側面図であって、枠体10から通気栓本体20および蓋体30が取り外された状態を示す。
図3は、図1に示す培養通気栓100のIII-III線断面図である。図3において、培養容器900は図示省略している。
即ち、培養通気栓100は、上記界面において、枠体10と通気栓本体20とを一体化するための接着層や融着層を有しない。そのため、非破壊的に、枠体10から通気栓本体20を取り外すことができ、再度、枠体10に通気栓本体20を保持させたときに、取り外し前の状態を容易に再現することができる。
たとえば枠体10または通気栓本体20の少なくとも一方が弾性部材により形成される場合には、凹部の内径320よりも通気栓本体20の直径330を大きくすることができる。これによって、基端部内周面126Aと通気栓本体20の側面との間に押圧が発生し、通気栓本体20の保持の状態が安定する。
ここでいうセラミックスとは、金属酸化物焼結体を含む陶磁器全般であって上記通気性を示す多孔質セラミックスを意味する。セラミックスは、たとえばジルコニア、アルミナ、炭化ケイ素、または窒化アルミニウムから選択することができるが、これに限定されない。本実施形態に用いられ得る上記セラミックスは、たとえば、気孔率20%以上80%以下のものが好適に選択される。
培養通気栓100において気体が透過する領域である通気栓本体20は、培養時において埃や雑菌が付着し易い。そのため通気栓本体20として耐熱性の高いセラミックスを選択し、厳しい温度条件で滅菌処理を行うことを可能とすることは、培養を無菌的に行うという観点で非常に有利である。
通気栓本体20の直径は、対称となる培養容器900の口径によって適宜変更することができる。外径18mm程度の容器開口910に対しては、例えば、セラミックスにより直径14mm、厚み6.5mm程度の円盤状の通気栓本体20を準備することができるが、これは一例であって、本発明を何ら限定するものではない。
培養通気栓100において、枠体10に対し通気栓本体20が繰り返し着脱可能であるため、枠体10が劣化したときに、枠体10だけを交換可能である。もちろん、枠体10に先んじて通気栓本体20が劣化した場合には、培養通気栓100において通気栓本体20だけを交換してもよい。
ただし、図示省略するが、本実施形態の変形例は、保持部22が設けられた領域を含んで装着部24が設けられてもよく、具体的には、保持部22の一部または全部が培養容器900の内部に内嵌される態様であってもよい。特に、通気栓本体20がセラミックスなどの硬質な部材で形成される場合には、保持部22が培養容器900に内嵌された場合であっても充分に良好な通気性が確保可能である。
規制部140における外径がテーパーであるのに対し、規制部140における内径は先基端方向において略均一である。
これにより、挿入側開口112の近傍は容器開口910に対し挿入し易いよう柔軟性を持たせるとともに、これよりも露出側開口122に向けて規制部140の強度を増大させることができる。即ち、上述する壁厚tの、容器開口910に対する装着状態を安定させることができる。
弾性体としては、たとえば、ゴム状弾性体、発泡樹脂体などを挙げることができる。
上記ゴム状弾性体のゴム硬度は、デュロメータ硬度計によって測定される。より具体的には、たとえばJIS K 6253に準拠したタイプAのデュロメータ硬度計によって測定することができる。上記ゴム状弾性体のゴム硬度は特に限定されないが、たとえば40A以上80A以下の範囲であることが好ましい。
上記発泡樹脂体の硬度も、デュロメータ硬度計によって測定することができる。例えばスポンジ硬度を測定するに適したデュロメータ硬度計を選択することができる。発泡樹脂体のデュロメータ硬度は、特に限定されないが、例えば20以上45以下の範囲であることが好ましい。発泡樹脂体の硬度は、例えば日本ゴム協会の規格SRIS0101に準拠して測定してもよい。
たとえば、先基端方向における規制部140の長さを30mm程度、規制部140の基端側端部から露出端120までの長さを13mm程度にすることができる。規制部140における枠体10の内径は11mm程度とし、外径は、対象となる培養容器900の容器開口910の内径に合わせ適宜決定してよい。ただし、上述の寸法は、本実施形態の一例であって、本発明を何ら限定するものではない。
尚、第二実施形態として後述する容器開口910に対し外嵌するタイプの培養通気栓100では、複数の枠体10において、保持部22の寸法が共通し、装着部24の内径寸法が異なる複数の枠体10を準備することにより、上述と同様の効果を得ることができる。
培養通気栓100は、図1から図3に示すとおり蓋体30をさらに有している。蓋体30は、通気栓本体20を露出させて枠体10の露出端120を含む露出端部121に対し繰り返し着脱可能に装着されている(図3参照)。蓋体30は、周方向に設けられた壁部32と、壁部32の一方の端部から径方向の内向きに延在する天井部34を有している。天井部34は、通気栓本体20を露出するための天井開孔310を有している。
露出端部121とは、枠体10の一部であって露出端120を含み先基端方向に所定長さで延在する領域である。
上述する壁部32の一方の端部とは、壁部32の一方の端面を含む所定の長さ領域を意味する。天井部34は、壁部32の一方の端面から径方向の内向きに延在する態様、および壁部32の一方の端面の近傍から径方向の内向きに延在する態様のいずれも含む。
本実施形態における天井開孔310の開口径は、挿入側開口112の内径と略同一となるよう構成されている。そのため、容器開口910に内嵌された枠体10が許容する通気量を、蓋体30が制限することがない。
換言すると、本実施形態における天井開孔310は、下端開口36Aから上端開口36Bに向けてテーパー状に形成されており、下端開口36Aの開口径370よりも上端開口36Bの開口径380の方が大きい。
蓋体30は、壁部32の内周面が保持部22の外周面に対し当接することによって、枠体10に外嵌されている。天井部34が通気栓本体20の基端側の面を覆っている。下端開口36Aの開口径370は、通気栓本体20の直径330よりも小さく構成されている。これにより蓋体30により、通気栓本体20が保持部22から脱落することが防止される。
枠体10を構成するゴム状弾性体および蓋体30を構成するゴム状弾性体は、同種であってもよいし、異種であってもよい。ここで同種のゴム状弾性体とは、ゴム状弾性体をなす樹脂の主構成が同じものをいう。たとえばシリコーンを主成分とするゴム状の高分子化合物は、ゴム硬度が異なっていても同種という。一方、シリコーンを主成分とするゴム状の高分子化合物と、分子内にウレタン結合の構造を有するゴム状の高分子化合物とは異種である。
枠体10を構成するゴム状弾性体のゴム硬度と、蓋体30を構成するゴム状弾性体のゴム硬度との比較において、ゴム硬度の測定方法は特に限定されない。同じ条件で枠体10を構成するゴム状弾性体および蓋体30を構成するゴム状弾性体のゴム硬度を測定すればよい。たとえば、ゴム硬度の測定方法の例としては、JIS K 6253に準拠したタイプAのデュロメータ硬度計を用いた測定を挙げることができる。本実施形態において、当該デュロメータ硬度計で測定された場合、枠体10を構成するゴム状弾性体のゴム硬度が40A以上60A未満であり、蓋体30を構成するゴム状弾性体のゴム硬度が60A以上80A以下であることが好ましい。
より具体的には、たとえば、試験管を用いて培地濃度を三種類に振り分けた3つの実験系にて培養実験をする場合、第一の培地濃度の実験区に用いる試験管には外周面が赤色の蓋体30を用い、第二の培地濃度の実験区に用いる試験管には外周面が緑色の蓋体30を用い、第三の培地濃度の実験区に用いる試験管には外周面が黄色の蓋体30を用いることができる。これによって、シールなどで各試験管をマーキングしなくても、ひと目で培養条件の異なる試験管を見分けることができる。
以下に、本発明の培養通気栓の第二実施形態である培養通気栓200について図4を用いて説明する。
図4は、第二実施形態の培養通気栓200を示す断面図である。断面の切断方向は、図1に示すIII-III線と同じである。本実施形態は、以下に説明する点で、第一実施形態とは相違しており、本実施形態のその他の構成は、適宜、第一実施形態の構成を採用することができる。
培養容器900の内周面には、先端方向から基端方向に向けて不連続に縮径する段差である規制部150が設けられている。挿入側開口112から規制部150まで、培養通気栓200の内径は略同一となっている。挿入側開口112から基端方向に向けて培養通気栓200の内部に挿入された培養容器900は、容器開口910が規制部150に当接することによって、培養通気栓200に対する挿入深さが規制される。
以下に、本発明の培養通気栓の第三実施形態である培養通気栓300について図5を用いて説明する。
図5は、第三実施形態の培養通気栓300を示す側面図であって、枠体10から、通気栓本体20および蓋体30が取り外された状態を示す。本実施形態は、以下に説明する点で、第一実施形態とは相違しており、本実施形態のその他の構成は、適宜、第一実施形態の構成を採用することができる。
蓋体30は、露出端部121に冠着されている(図3参照)。通気栓本体20は、保持部22に圧入されるとともに、露出端部121は、蓋体30に圧入されている。
圧入とは、圧力を加えて押し込むことをいう。保持部22に圧入された通気栓本体20は、保持部22の押圧がかかった状態で保持部22に保持される。また、露出端部121に圧入された蓋体30は、露出端部121および蓋体30の互いの押圧力により押し合うことで密着する。
以下に、本発明の培養通気栓の第四実施形態である培養通気栓400について図6を用いて説明する。
図6は、第四実施形態の培養通気栓を例示する培養通気栓400の断面図である。断面の切断方向は、図1に示すIII-III線と同じである。本実施形態は、以下に説明する点で、第一実施形態とは相違しており、本実施形態のその他の構成は、適宜、第一実施形態の構成を採用することができる。
換言すると、壁部32の下端部38において、蓋体30の外径が上方向から下方向に縮径しており、下端部38が下方向に先細りのテーパー形状になっている。
上記平坦とは、微視的に観察した際の平滑性までを求めるものではなく、意図的に設けられた凹凸形状を有しない程度に平坦であることを意味する。図6に示す下端部38は、上方向から下方向に向かって連続的に薄肉に形成された例を示した。
本発明の培養通気栓は、枠体に対し通気栓本体を繰り返し着脱可能である。かかる特徴により、本発明の培養通気栓は、従来の培養通気栓にはない種々の有利な効果を発揮する。尚、以下に述べる記載は、本発明の有利な使用例の一例を示すものであって、本発明を何ら制限するものではない。
第二に、使用者は、個々に洗浄された通気栓本体と枠体とを、個々の状態のまま高温滅菌処理に付することができる。このとき、通気栓本体および枠体のそれぞれの耐熱性を勘案し、それぞれ、異なる温度で高温滅菌処理がなされてもよい。たとえば、通気栓本体は、培養容器の内外において気体が流動する部分であるため、埃や雑菌が付着し易く、培養通気栓の中でも特に充分に滅菌を行うことが望まれる。そこで、通気栓本体を耐熱性の高い部材(例えばセラミックス)で構成することによって、通気栓本体を選択的に高い温度で高温滅菌処理することができる。一方の枠体は、当該枠体を構成する部材の耐熱性等を勘案して、適切な高温滅菌処理の条件を設定すればよい。
第三に、高温滅菌処理の後、使用者は、個々に高温滅菌処理された通気栓本体と枠体とを、個々の状態のまま乾燥に付することができる。使用者は、従来の培養通気栓に比して、個別の状態である通気栓本体および枠体を、短時間で充分に乾燥することができる。
第四に、上述のとおり充分に乾燥された通気栓本体および枠体は、使用者により容易に培養通気栓として再度組み立てられ、再度、培養通気栓として使用される。
第五に、使用者は、本発明の培養通気栓を培養容器に使用し、洗浄・乾燥することを複数回繰り返した後、枠体および通気栓本体のいずれか先に劣化した方のみを、新しいものと交換することができる。したがって本発明の培養通気栓は、経済性の上でも優れている。好ましい例としては、通気栓本体をセラミックスで構成するとともに、枠体をゴムや軟質樹脂などの弾性部材により構成するとよい。これによって、通気栓本体を充分に高い温度で高温滅菌処理することができるとともに、枠体の柔軟性により、気密性高く培養容器に対し培養通気栓を装着することができる。またゴムなどの弾性体からなる枠体に対し、セラミックスからなる通気栓本体が取り付けられた場合には、当該枠体により当該通気栓本体は、物理的衝撃から保護される。
(1)培養容器の内部と外部との通気を確保可能な通気栓本体と、前記通気栓本体を保持する保持部および前記培養容器の容器開口に着脱可能である装着部を有する枠体と、を有し、
前記通気栓本体が、前記枠体に対し繰り返し着脱可能に前記保持部に保持されていることを特徴とする培養通気栓。
(2)前記保持部と、前記保持部に保持された前記通気栓本体との界面全面が、微視的な空気層である上記(1)に記載の培養通気栓。
(3)前記保持部は、前記枠体の一方端において開口する凹部であって、
前記凹部の内径は、前記枠体の前記一方端から前記枠体の他方端に向かって略均一であるか、または縮径している上記(1)または(2)に記載の培養通気栓。
(4)前記通気栓本体の硬度が、前記枠体の硬度よりも大きい上記(1)から(3)のいずれか一項に記載の培養通気栓。
(5)前記通気栓本体が、セラミックスである上記(1)から(4)のいずれか一項に記載の培養通気栓。
(6)前記枠体が、弾性体を備える上記(1)から(5)のいずれか一項に記載の培養通気栓。
(7)前記枠体は、前記容器開口に対し挿入可能な挿入端と、前記容器開口から露出する露出端と、前記挿入端に設けられた挿入側開口および前記露出端に設けられた露出側開口を連通する通気路と、先基端方向における中間部に設けられ前記培養容器に対する前記枠体の挿入深さを規制する規制部と、を有する筒体である上記(1)から(6)のいずれか一項に記載の培養通気栓。
(8)前記露出側開口の内径は、前記挿入側開口の内径よりも大きく、
前記通気栓本体が、前記規制部よりも前記露出側開口寄りに設けられている上記(7)に記載の培養通気栓。
(9)前記規制部が、前記挿入端から、前記露出端に向けて前記枠体の外径が連続的に増大するテーパーにより構成されており、
前記テーパーにより構成された前記規制部の壁厚が、前記挿入端から前記露出端に向けて連続的に増大している上記(7)または(8)に記載の培養通気栓。
(10)前記通気栓本体を露出させて前記枠体の前記露出端を含む露出端部に対し繰り返し着脱可能に装着される蓋体をさらに有し、
前記蓋体は、周方向に設けられた壁部と、前記壁部の一方の端部から径方向の内向きに延在する天井部を有しており、
前記天井部は、前記通気栓本体を露出するための天井開孔を有している上記(7)から(9)のいずれか一項に記載の培養通気栓。
(11)前記筒体である前記枠体の内周面は、前記挿入端から前記露出端に向けて、内径が不連続に増大することにより形成された段差を有し、
前記段差と前記蓋体とに前記通気栓本体が挟持されている上記(10)に記載の培養通気栓。
(12)前記天井開孔の開口径は、前記枠体の前記挿入側開口の内径と略同一である上記(10)または(11)に記載の培養通気栓。
(13)前記蓋体は、前記天井開孔の上端側の開口から下端側の開口に向けて縮径している上記(10)から(12)のいずれか一項に記載の培養通気栓。
(14)前記枠体および前記蓋体が、ゴム状弾性体から構成されており、
前記枠体のゴム硬度が、前記蓋体のゴム硬度よりも小さい上記(10)から(13)のいずれか一項に記載の培養通気栓。
(15)ゴム状弾性体で構成された前記枠体、ゴム状弾性体で構成された前記蓋体、およびセラミックスで構成された通気栓本体を有し、
前記蓋体は、前記露出端部に冠着されており、
前記通気栓本体が前記保持部に圧入されるとともに、前記露出端部が前記蓋体に圧入されている上記(10)から(14)のいずれか一項に記載の培養通気栓。
(16)前記枠体の前記挿入側開口の開口径よりも前記蓋体の前記天井開孔の開口径が大きい上記(10)から(15)のいずれか一項に記載の培養通気栓。
(17)前記枠体の前記挿入側開口の開口径よりも前記蓋体の前記天井開孔の開口径が小さい上記(10)から(15)のいずれか一項に記載の培養通気栓。
(18)前記枠体の前記露出端部の外周面および前記蓋体の内周面がいずれも平坦であり、かつ、
前記蓋体の前記壁部の下端部が上方向から下方向に向かって連続的または断続的に薄肉に形成されている上記(10)から(17)のいずれか一項に記載の培養通気栓。
(19)上記(1)から(18)のいずれか一項に記載される前記培養通気栓に用いられ前記枠体の前記容器開口から露出する露出端部に対し繰り返し着脱可能に装着される蓋体を複数含み、
複数の前記蓋体は、一の前記蓋体の外周面の色が、他の前記蓋体の外周面の色と異なっていることを特徴とする蓋体キット。
(20)上記(1)から(18)のいずれか一項に記載される培養通気栓に用いられ、通気栓本体を繰り返し着脱可能に保持する保持部と、培養容器の容器開口に着脱可能に装着される装着部を備えることを特徴とする培養通気栓用の枠体。
(21)前記培養容器の前記容器開口に対し挿入可能な挿入端と、前記容器開口から露出する露出端と、前記挿入端に設けられた挿入側開口および前記露出端に設けられた露出側開口を連通する通気路と、先基端方向における中間部に前記培養容器に対する前記枠体の挿入深さを規制する規制部と、を有する筒体である上記(20)に記載の培養通気栓用の枠体。
Claims (21)
- 培養容器の内部と外部との通気を確保可能な通気栓本体と、前記通気栓本体を保持する保持部および前記培養容器の容器開口に着脱可能である装着部を有する枠体と、を有し、
前記通気栓本体が、前記枠体に対し繰り返し着脱可能に前記保持部に保持されていることを特徴とする培養通気栓。 - 前記保持部と、前記保持部に保持された前記通気栓本体との界面全面が、微視的な空気層である請求項1に記載の培養通気栓。
- 前記保持部は、前記枠体の一方端において開口する凹部であって、
前記凹部の内径は、前記枠体の前記一方端から前記枠体の他方端に向かって略均一であるか、または縮径している請求項1または2に記載の培養通気栓。 - 前記通気栓本体の硬度が、前記枠体の硬度よりも大きい請求項1から3のいずれか一項に記載の培養通気栓。
- 前記通気栓本体が、セラミックスである請求項1から4のいずれか一項に記載の培養通気栓。
- 前記枠体が、弾性体を備える請求項1から5のいずれか一項に記載の培養通気栓。
- 前記枠体は、前記容器開口に対し挿入可能な挿入端と、前記容器開口から露出する露出端と、前記挿入端に設けられた挿入側開口および前記露出端に設けられた露出側開口を連通する通気路と、先基端方向における中間部に設けられ前記培養容器に対する前記枠体の挿入深さを規制する規制部と、を有する筒体である請求項1から6のいずれか一項に記載の培養通気栓。
- 前記露出側開口の内径は、前記挿入側開口の内径よりも大きく、
前記通気栓本体が、前記規制部よりも前記露出側開口寄りに設けられている請求項7に記載の培養通気栓。 - 前記規制部が、前記挿入端から、前記露出端に向けて前記枠体の外径が連続的に増大するテーパーにより構成されており、
前記テーパーにより構成された前記規制部の壁厚が、前記挿入端から前記露出端に向けて連続的に増大している請求項7または8に記載の培養通気栓。 - 前記通気栓本体を露出させて前記枠体の前記露出端を含む露出端部に対し繰り返し着脱可能に装着される蓋体をさらに有し、
前記蓋体は、周方向に設けられた壁部と、前記壁部の一方の端部から径方向の内向きに延在する天井部を有しており、
前記天井部は、前記通気栓本体を露出するための天井開孔を有している請求項7から9のいずれか一項に記載の培養通気栓。 - 前記筒体である前記枠体の内周面は、前記挿入端から前記露出端に向けて、内径が不連続に増大することにより形成された段差を有し、
前記段差と前記蓋体とに前記通気栓本体が挟持されている請求項10に記載の培養通気栓。 - 前記天井開孔の開口径は、前記枠体の前記挿入側開口の内径と略同一である請求項10または11に記載の培養通気栓。
- 前記蓋体は、前記天井開孔の上端側の開口から下端側の開口に向けて縮径している請求項10から12のいずれか一項に記載の培養通気栓。
- 前記枠体および前記蓋体が、ゴム状弾性体から構成されており、
前記枠体のゴム硬度が、前記蓋体のゴム硬度よりも小さい請求項10から13のいずれか一項に記載の培養通気栓。 - ゴム状弾性体で構成された前記枠体、ゴム状弾性体で構成された前記蓋体、およびセラミックスで構成された通気栓本体を有し、
前記蓋体は、前記露出端部に冠着されており、
前記通気栓本体が前記保持部に圧入されるとともに、前記露出端部が前記蓋体に圧入されている請求項10から14のいずれか一項に記載の培養通気栓。 - 前記枠体の前記挿入側開口の開口径よりも前記蓋体の前記天井開孔の開口径が大きい請求項10から15のいずれか一項に記載の培養通気栓。
- 前記枠体の前記挿入側開口の開口径よりも前記蓋体の前記天井開孔の開口径が小さい請求項10から15のいずれか一項に記載の培養通気栓。
- 前記枠体の前記露出端部の外周面および前記蓋体の内周面がいずれも平坦であり、かつ、
前記蓋体の前記壁部の下端部が上方向から下方向に向かって連続的または断続的に薄肉に形成されている請求項10から17のいずれか一項に記載の培養通気栓。 - 請求項1から18のいずれか一項に記載される前記培養通気栓に用いられ前記枠体の前記容器開口から露出する露出端部に対し繰り返し着脱可能に装着される蓋体を複数含み、
複数の前記蓋体は、一の前記蓋体の外周面の色が、他の前記蓋体の外周面の色と異なっていることを特徴とする蓋体キット。 - 請求項1から18のいずれか一項に記載される培養通気栓に用いられ、通気栓本体を繰り返し着脱可能に保持する保持部と、培養容器の容器開口に着脱可能に装着される装着部を備えることを特徴とする培養通気栓用の枠体。
- 前記培養容器の前記容器開口に対し挿入可能な挿入端と、前記容器開口から露出する露出端と、前記挿入端に設けられた挿入側開口および前記露出端に設けられた露出側開口を連通する通気路と、先基端方向における中間部に前記培養容器に対する前記枠体の挿入深さを規制する規制部と、を有する筒体である請求項20に記載の培養通気栓用の枠体。
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WO2013103108A1 (ja) * | 2012-01-04 | 2013-07-11 | 株式会社ジャパン・ティッシュ・エンジニアリング | 細胞分離容器 |
-
2015
- 2015-05-12 WO PCT/JP2015/063579 patent/WO2015174394A1/ja active Application Filing
- 2015-05-12 JP JP2016505638A patent/JP5982607B2/ja active Active
- 2015-05-12 US US15/302,285 patent/US20170029757A1/en not_active Abandoned
Patent Citations (8)
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JPH0722700Y2 (ja) * | 1989-10-04 | 1995-05-24 | オリンパス光学工業株式会社 | 表示装置 |
JPH04152882A (ja) * | 1990-10-15 | 1992-05-26 | Shin Etsu Polymer Co Ltd | 気体透過性培養栓 |
JPH0539300Y2 (ja) * | 1991-06-01 | 1993-10-05 | ||
JPH08140660A (ja) * | 1994-11-17 | 1996-06-04 | Shin Etsu Polymer Co Ltd | 培養・飼育容器の栓体およびその製造方法 |
JP3036240U (ja) * | 1996-09-26 | 1997-04-15 | 太陽興業株式会社 | セラミック培養栓 |
JP3037198U (ja) * | 1996-10-25 | 1997-05-06 | 太陽興業株式会社 | セラミック培養キャップ |
JP2007191195A (ja) * | 2006-01-20 | 2007-08-02 | Doi Giken:Kk | 保冷箱及び保冷箱本体の製造方法 |
WO2013103108A1 (ja) * | 2012-01-04 | 2013-07-11 | 株式会社ジャパン・ティッシュ・エンジニアリング | 細胞分離容器 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3203186U (ja) * | 2015-12-28 | 2016-03-17 | 株式会社北里バイオファルマ | 密度勾配遠心分離法用精子洗浄濃縮キット |
Also Published As
Publication number | Publication date |
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US20170029757A1 (en) | 2017-02-02 |
JP5982607B2 (ja) | 2016-08-31 |
JPWO2015174394A1 (ja) | 2017-04-20 |
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