JP4729327B2 - Environmental microbiological testing tool - Google Patents

Description

  The present invention relates to an environmental microbe inspection tool used for inspecting whether an environmental microbe is attached to a palm or a finger.

In establishments related to hospitals, foods, pharmaceuticals, etc., it is a serious concern whether the palms and fingers of people engaged in various operations are contaminated with environmental microorganisms such as bacteria and fungi. For this reason, hygiene management such as hand washing and chemical disinfection is thoroughly performed. However, there are individual differences in actions such as hand washing and finger disinfection, and not all people are always fully engaged in hand washing and disinfection. Therefore, in order to raise the worker's awareness of hygiene management, a method for visually confirming the effects of hand washing and finger disinfection is required. For such a purpose, conventionally, an inspection tool comprising a flat dish-like container having a recess corresponding to the shape of the hand is used, and the medium is dispensed and accommodated in the recess of the flat dish-like container. After pressing the palm / finger on the surface to transfer bacteria and fungi attached to the palm / finger to the surface of the plate medium, cover the container with the lid, and culture after the operation. In other words, the growth status of the palm of the hand and fingers is determined by observing the growth status of the palm (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 64-25000 (page 1, Fig. 1-3)

  In the conventional inspection tool described above, remove the lid from the flat dish container before the inspection, place the lid aside, and press the palm / finger on the flat medium in the recess of the flat dish container to collect the attached bacteria. To. For this reason, there is a possibility that bacteria may adhere to the inside of the lid, and when the lid is put on the flat dish-like container, there is a concern that the medium is contaminated with bacteria other than bacteria adhering to the palm and fingers. In addition, since the bacteria are collected with the upper surface of the flat dish-like container open, there is a concern that the culture medium is contaminated by the falling bacteria. As described above, there is a problem that if the culture medium is contaminated by bacteria or falling bacteria attached to the inside of the lid and those bacteria grow on the culture medium, an accurate test result cannot be obtained.

  The present invention has been made in view of the circumstances as described above, and when a palm / finger adhering microorganism is collected by pressing the palm / finger on the medium, the medium is used by a microorganism other than the palm / finger adhering microorganism. It is an object to provide an environmental microbiological examination tool that does not have to worry about contamination.

  The invention according to claim 1 has a flat medium, and a palm / finger is pressed against the surface of the flat medium to transfer microorganisms adhering to the palm / finger to the surface of the flat medium, after the culturing operation. In an environmental microbiological examination tool for observing the growth of microorganisms on a flat medium and determining the presence or absence of microbial contamination of the palm and fingers, it has a concave part for accommodating the flat medium and a frame part surrounding the concave part. A body part integrally formed with an outwardly projecting engagement protrusion on the outer peripheral side surface of the frame part, and a flexible material formed into a shape that can be removably fitted to the frame part of the body part The main body is hinged to one side of the main body adjacent to the side where the engaging protrusion is provided so as to be openable and closable with respect to the frame, and the engaging protrusion is fitted on the inner peripheral side surface. An engaging recess is formed, and a peripheral edge engages with the engaging protrusion. A lid that can be held in an open state with respect to the main body, and can be held in a state in which the engagement protrusion fits into the engagement recess and is closed with respect to the main body. It is characterized by that.

  According to a second aspect of the present invention, in the inspection tool according to the first aspect, the main body portion and the lid portion are integrally formed of the same flexible material.

  According to a third aspect of the present invention, in the inspection tool according to the first or second aspect, the pair of engaging protrusions are symmetrically formed on the outer peripheral side surfaces of the frame portion facing each other. To do.

  According to a fourth aspect of the present invention, in the inspection tool according to any one of the first to third aspects, the engagement projecting portion is a connection between the main body portion and the lid portion on the outer peripheral side surface of the frame portion. It is characterized in that it is formed only in the vicinity of the portion, and the engaging recess is formed only in the vicinity of the connecting portion between the main body portion and the lid portion on the inner peripheral side surface of the lid portion.

  According to a fifth aspect of the present invention, in the inspection tool according to any one of the first to fourth aspects, a cutting auxiliary line is formed at a connecting portion between the main body portion and the lid portion, and the main body is formed by the cutting auxiliary line. The part and the lid part can be separated.

In the environmental microbe inspection tool according to the first aspect of the present invention, the lid is opened to the main body by opening the lid with respect to the main body and engaging the peripheral edge of the lid with the engaging protrusion of the main body frame. It is held open to the part. In this state, insert a hand between the main body and the lid, and press the palm / finger on the surface of the flat medium in the concave portion of the main body, so that the microorganisms attached to the palm / finger to the surface of the medium. Metastasize. In this way, when collecting microorganisms on the palm and fingers on the culture medium, the lid is connected to the main body and the inside of the lid faces downward, so there is a concern that bacteria will adhere to the inside of the lid There is no. In addition, since the upper part of the flat medium in the concave part of the main body is covered with the lid part, the falling bacteria are blocked by the lid part, and there is no fear that the culture medium is contaminated by the falling bacteria. On the other hand, when the lid portion formed of a flexible material is pushed down from the position where the peripheral edge portion is engaged with the engagement protrusion of the main body frame portion, the lid portion of the main body portion is The engagement protrusion of the main body frame portion is fitted into the engagement recess of the lid portion while being fitted to the frame portion. Thus, the lid is held in a state of being closed with respect to the main body.
Therefore, when using the environmental microorganism testing tool of the invention according to claim 1, when the palm / finger adhering microorganisms are collected by pressing the palm / finger against the flat plate medium, microorganisms other than the palm / finger adhering microorganisms are collected. There is no need to worry about contamination of the medium. In addition, when the lid is closed against the main body after collecting the palm / finger adhering microorganisms, the lid does not easily come off from the main body. Therefore, there is no concern that the culture medium is contaminated or the culture medium is dried by removing the lid from the main body. For this reason, an accurate test result can be obtained.

  In the inspection tool according to the second aspect of the invention, the main body portion and the lid portion can be integrally formed of resin or the like.

  In the inspection tool according to the third aspect of the invention, the lid is more reliably held in a state where the lid is opened with respect to the main body, and is more reliably held in a state where the lid is closed with respect to the main body.

  In the inspection tool according to the fourth aspect of the present invention, when the lid is opened with respect to the main body, the engagement protrusions of the main body frame and the lid are located near the connecting portion between the main body and the lid serving as a fulcrum. Since the engagement concave portion is located, a large force is not required to disengage the engagement concave portion of the lid portion from the engagement protrusion portion of the main body frame portion.

  In the inspection tool of the invention according to claim 5, the main body portion and the lid portion can be easily separated as necessary.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the best embodiment of the present invention will be described with reference to the drawings.
1 to 6 show an embodiment of the present invention, FIG. 1 is a perspective view showing an environmental microbe inspection tool with its lid open, and FIGS. 2 and 3 show the test tool. It is a side view respectively shown in the state which opened and closed the cover part. 4 is a plan view showing a state where the lid is opened at an angle of 180 ° with respect to the main body of the inspection tool, and FIG. 5 is a plan view showing a state where the lid is separated from the main body of the inspection tool. FIG. 6 is a side view showing a state where the palm / finger adhering to the flat medium of the test tool is collected by collecting the palm / finger adhering microorganisms. In FIG. 1, for convenience, the main body of the inspection tool is indicated by a solid line, and the lid is indicated by a two-dot chain line.

  This environmental microbe inspection tool is composed of a flat plate-like main body portion 10 and a lid portion 12 that is hinged to one side of the main body portion 10 and rotates around the connecting portion to open and close the main body portion 10. Has been. The main body portion 10 and the lid portion 12 are integrally formed of a plastic material such as PET (polyethylene terephthalate), and are formed into a thin plate shape as a whole and have flexibility. As described above, since the main body 10 and the lid 12 are integrated, even if a specimen name is written on the lid 12 when a large number of specimens are examined, the main body 10 and the lid 12 are separated. There is no need to worry about the lid being mistaken for the main body as in the case of a separate conventional inspection tool. As shown in FIG. 4, a cutting auxiliary line 14 such as a perforation is formed at the connecting portion of the main body 10 and the lid 12. As shown in FIG. And the lid portion 12 can be easily separated.

  The main body 10 is formed with a concave portion 16 having a planar shape corresponding to the shape of a hand, and a flat medium 18 made of an agar medium having an appropriate thickness is accommodated in the concave portion 16. A frame portion 20 is formed around the recess 16. On the outer peripheral side surface of the frame portion 20, an engagement protrusion portion 22 protruding outward is integrally formed in the vicinity of the connection portion between the main body portion 10 and the lid portion 12. A pair of engaging protrusions 22 are provided symmetrically on the outer peripheral side surfaces of the frame portion 20 facing each other.

  The lid portion 12 is formed such that the inner surface side shape is detachably fitted to the frame portion 20 of the main body portion 10. And, as shown in FIG. 3, when the lid portion 12 is closed with respect to the main body portion 10, a structure such that microorganisms such as bacteria are not mixed into the flat medium 18 in the concave portion 16 of the main body portion 10 from the outside. It has become. An engagement recess 24 is formed on the inner peripheral side surface of the lid 12 at a position corresponding to the engagement protrusion 22 of the main body 10. The engaging recess 24 is formed by bulging a part of the thin plate material forming the lid portion 12 to the outside, and the inner surface side of the bulging portion 26 is the engaging recess 24. The engaging recesses 24 are formed in a shape into which the engaging protrusions 22 are fitted, and a pair of symmetrically provided portions are provided near the connecting portion between the main body 10 and the lid 12 corresponding to the engaging protrusions 22. ing.

  When the presence of microbial contamination of the palm and fingers is inspected using the above-described inspection tool, as shown in FIG. The engagement protrusion 22 of the frame portion 20 is engaged. Thereby, the cover part 12 is hold | maintained in the state opened by the predetermined angle, for example, the angle of about 30 degrees-45 degrees with respect to the main-body part 10. FIG. At this time, since the pair of engaging protrusions 22 are provided on the left and right sides of the frame part 20, the lid part 12 is reliably held in a state of being opened with respect to the main body part 10. In addition, the engagement protrusion 22 of the main body 10 and the engagement recess 24 of the lid 12 are respectively connected portions of the main body 10 and the lid 12 that serve as fulcrums when the lid 12 is opened with respect to the main body 10. Since it is provided in the vicinity, it is not necessary to use a great force to disengage the engaging recess 24 of the lid 12 from the engaging protrusion 22 of the main body 10 according to the lever principle.

  When the lid 12 is held open with respect to the main body 10, as shown in FIG. 6, a hand is inserted between the main body 10 and the lid 12 and the flat plate in the recess 16 of the main body 10. The palm and fingers are pressed against the surface of the plate-shaped medium 18, and the microorganisms attached to the palm and fingers are transferred to the surface of the plate-shaped medium 18. In this way, when collecting microorganisms attached to the palm / finger on the flat medium 18, the lid 12 is connected to the main body 10 and the inside of the lid 12 faces downward. Unlike the conventional inspection tool in which the parts are separated, there is no concern that bacteria adhere to the inside of the lid part 12. In addition, since the upper part of the flat medium 18 in the recess 16 of the main body 10 is covered with the lid 12, the falling bacteria are blocked by the lid 12, and the flat medium 18 is contaminated by the falling bacteria. There is no worry.

  When collection of bacteria and the like adhering to the palm of the hand and fingers is finished, the lid 12 is pushed down from the position shown in FIG. 2 with respect to the main body 10 and the lid 12 is moved to the frame 20 of the main body 10. At the same time, the engagement protrusion 22 of the main body 10 is fitted into the engagement recess 24 of the lid 12. Thereby, the cover part 12 is hold | maintained in the state obstruct | occluded with respect to the main-body part 10. FIG. At this time, a pair of engagement protrusions 22 are provided on the left and right sides of the frame portion 20, and a pair of engagement recesses 24 are provided on the left and right sides of the lid portion 12. Therefore, the lid portion 12 is not easily detached from the main body portion 10. For this reason, there is no fear that the flat plate medium 18 is contaminated by microorganisms other than the attached microorganisms of the palm and fingers during the culture or the like, and the lid portion 12 is detached from the main body 10 and the flat plate medium 18 is dried. In this state, the incubator (incubator) or the like is used to cultivate the bacteria on the plate medium 18 and the growth of the bacteria on the surface of the plate medium 18 is observed after the culturing operation. Determine the presence or absence of contamination.

  In the above-described embodiment, the connecting portion between the main body 10 and the lid 12 is formed on one side perpendicular to the direction in which a hand is inserted between the main body 10 and the lid 12. A connecting portion between the main body and the lid may be formed on one side along the hand insertion direction. Moreover, the formation position and the number of the engagement protrusions 22 and the engagement recesses 24 are not limited to those of the above embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an environmental microbe inspection tool in a state where a lid portion is opened, showing an embodiment of the present invention. It is a side view which shows the test | inspection tool shown in FIG. 1 in the state which opened the cover part. It is a side view which shows the test | inspection tool shown in FIG. 1 in the state which closed the cover part. It is a top view which shows the state which opened the cover part at an angle of 180 degrees with respect to the main-body part of the inspection tool shown in FIG. It is a top view which shows the state which cut | disconnected the cover part from the main-body part of the inspection tool shown in FIG. It is a side view which shows a mode when palm and fingers are pressed against the flat plate-like culture medium of the inspection tool shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Main body part of environmental microbe test | inspection tool 12 Cover part of environmental microbe test | inspection tool 14 Auxiliary cutting line 16 Main part recessed part 18 Flat plate medium 20 Main part frame part 22 Engagement protrusion part 24 Engagement recessed part

Claims (5)

Having a flat medium, press the palm and fingers against the surface of the flat medium to transfer the microorganisms attached to the palm and fingers to the surface of the flat medium. In an environmental microbiological examination tool for observing the situation and determining the presence or absence of microbial contamination of the palm and fingers,
A main body having a concave portion in which a plate-shaped medium is accommodated and a frame portion surrounding the concave portion, and an engagement protrusion protruding outward on the outer peripheral side surface of the frame portion;
The frame is formed in a shape that is detachably fitted to the frame portion of the main body portion by a flexible material, and the frame is disposed on one side of the main body portion adjacent to the side on which the engagement protrusion is provided. An engagement recess is formed on the inner peripheral side surface, and the peripheral edge engages with the engagement protrusion and is released from the main body. A lid portion that can be held in a closed state, and that can be held in a state where the engagement protrusion fits into the engagement recess and is closed with respect to the main body portion;
An environmental microbe inspection tool characterized by comprising: The environmental microorganism testing tool according to claim 1, wherein the main body portion and the lid portion are integrally formed of the same flexible material. The environmental microorganism testing tool according to claim 1 or 2, wherein a pair of the engaging protrusions are symmetrically formed on the outer peripheral side surfaces of the frame portion facing each other. The engaging protrusion is formed only on the outer peripheral side surface of the frame portion in the vicinity of the connecting portion between the main body portion and the lid portion, and the engaging concave portion is formed on the inner peripheral side surface of the lid portion. The environmental microbe inspection tool according to any one of claims 1 to 3, which is formed only in the vicinity of a connecting portion between the main body and the lid. The environmental microorganism according to any one of claims 1 to 4, wherein a cutting auxiliary line is formed at a connecting portion between the main body part and the lid part, and the main body part and the lid part can be separated by the cutting auxiliary line. Inspection tool.

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