JP4813759B2 - Test tube substitute bag - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cheap and disposable (disposable) test tube substitute bag that can be used in place of a conventional glass or plastic test tube.
[0002]
[Prior art]
For example, in the case of measuring the number of viable bacteria by the pour plate culture method, the sample stock solution is 10 times, 100 times, 1000 times, etc. in order to make a series of culture media containing sample solutions (bacterial solutions) of various concentrations. Dilute serially every 10 times. In addition, in the case of examining the susceptibility of bacteria to chemotherapeutic agents by the agar plate dilution method, the test agent is divided into about 10 to 15 steps in order to prepare a series of media containing samples (test agents) of various concentrations. Dilute serially every 2X. Thus, when preparing sample liquids, such as a serially diluted bacteria liquid and a test chemical | medical agent, many test tubes made from glass or plastic are used (for example, refer patent document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 3-41364 (page 2)
[0004]
[Problems to be solved by the invention]
As described above, many test tubes made of glass or plastic are used to prepare sample solutions of various concentrations by serially diluting samples such as bacteria and test drugs. Test tubes, particularly those used to serially dilute the bacterial solution, are usually discarded. However, even if a glass test tube is sterilized, it cannot be discarded as general waste, and the disposal is troublesome. In addition, even if the unit price of a test tube is low, it is expensive throughout the year at establishments that use a large amount of test tubes, such as clinical laboratories and pharmaceutical company laboratories. become. On the other hand, if a test tube after use is cleaned, sterilized and reused, it is troublesome, and it is more advantageous to discard it from the viewpoint of efficiency and cost.
[0005]
The present invention has been made in view of the circumstances as described above, and can be used in place of conventional glass or plastic test tubes, and can be disposed of as general trash. An object is to provide a disposable test tube substitute bag.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 is a test tube substitute bag that can be used in place of a glass or plastic test tube, and has a rectangular planar film material and a vertical dimension equal to that of the planar film material. It is formed by joining a rectangular curved surface film material whose lateral dimension is larger than that of the flat film material, and the left and right side edges of the flat film material and the left and right side edges of the curved film material And the curved portion film material is bent into a regular waveform with respect to the planar portion film material in a flat state, and each valley portion and the planar portion film material of the curved portion portion film material are bent. Are bonded at equal intervals in a straight line along the respective sides to form a plurality of cylindrical portions parallel to each other between the flat portion film material and the curved portion film material, and the upper edge portion of the flat portion film material. And the lower edge and the curved surface portion The upper and lower edges of the film material are respectively bonded to the upper and lower edges of the curved surface film material while forming ridges, respectively, and the upper and lower openings of each cylindrical portion are respectively closed. The plurality of storage portions having the same internal volume, which are sealed, are connected and formed.
[0007]
According to a second aspect of the present invention, in the test tube substitute bag according to the first aspect, a cutting line for separating each other is formed between the adjacent accommodating portions.
[0008]
The invention according to claim 3 is the test tube substitute bag according to claim 2, wherein the cutting line is an intermittent cut.
[0012]
The test tube substitute bag of the invention according to claim 1 is formed by connecting a plurality of sealed storage portions having the same internal volume, and is formed by opening means provided on the bag itself or by a bag or the like. When the sealed container is opened using the instrument, the cylindrical part formed by joining the flat part film material and the curved part film material having a larger lateral dimension than the flat part film is not touched. In addition, the unsealed portion of the curved portion film material opens naturally and reversibly by the elasticity of the curved surface film material. Therefore, it is possible to use as a test tube by using a pipette or the like to dispense a sample solution or the like through a wide opening and into the accommodating portion. Moreover, since this test tube substitute bag is formed of a film material, it has flexibility. For this reason, for example, in the case of diluting the sample liquid by dispensing the sample liquid into the container and diluting the sample liquid, it can be easily done by picking the vicinity of the bottom of the bag with the fingertip several times. The sample solution and the dilution water can be mixed uniformly.
[0013]
In addition, the test tube substitute bag is formed with a plurality of connecting portions connected to each other, but by using cutting means formed on the bag itself or using an instrument such as a scissors, By cutting between the storage portions, the storage portions can be separated from each other. Therefore, it is possible to separate and use the accommodating portions one by one as necessary. Furthermore, since this test tube substitute bag is formed of a film material, it can be discarded as general waste if it is sterilized as necessary after use.
[0014]
In the test tube substitute bag of the invention according to claim 2, the storage portions can be separated from each other by cutting the bag along a cutting line formed between the adjacent storage portions.
[0015]
In the test tube substitute bag according to the third aspect of the present invention, the housing portions can be easily separated from each other by cutting the bag at intermittent cuts formed between adjacent housing portions. .
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0020]
1 to 5 show an example of an embodiment of the present invention. FIG. 1 is a front view of a test tube substitute bag, FIG. 2 is a plan view thereof, and FIG. 3 is a test tube substitute bag. 4 is a partially enlarged plan view seen from the direction of arrow A in FIG. 1, FIG. 4 is a plan view further enlarging a portion B in FIG. 3, and FIG. 5 is an enlarged sectional view taken along the arrow VV in FIG. It is.
[0021]
This test tube substitute bag is formed by joining two rectangular film materials 10 and 12 together. Both the film materials 10 and 12 have the same vertical dimension. As shown in the perspective view of FIG. 6, the other film material 10 (which is referred to as the “plane portion film material 10”) has the other vertical dimension. The lateral dimension of the film material 12 (referred to as “curved surface film material 12”) is large. Then, the left and right side edge portions of the flat portion film material 10 and the left and right side edge portions of the curved surface portion film material 12 are respectively aligned and bonded, for example, heat bonded (heat seal), and in a flat state. The curved surface film material 12 is bent into a regular waveform with respect to the flat surface film material 10, and each trough portion of the curved surface film material 12 and the flat surface film material 10 are linearly formed along the side edges. By thermally bonding at equal intervals, as shown in a perspective view in FIG. 7, a plurality of cylindrical portions 14 that are parallel to each other are formed by the flat portion film material 10 and the curved portion film material 12.
[0022]
As shown in FIG. 7, after the flat portion film material 10 and the curved portion film material 12 are thermally bonded to form a plurality of cylindrical portions 14, the upper and lower edges and the curved surface of the flat portion film material 10 are curved. The upper edge portion and the lower edge portion of the partial film material 12 are thermally bonded to each other. At this time, since the curved portion film material 12 is curved in the opening portion of the cylindrical portion 14 while the planar portion film material 10 is in a flat state, the curved portion film is formed as shown in FIGS. The upper and lower edges of the flat film material 10 and the upper and lower edges of the curved film material 12 are thermally bonded to each other while forming tacks 16 on the upper and lower edges of the material 12, respectively. Thus, the upper and lower openings of each cylindrical portion 14 are respectively closed in a flat shape. Through the above-described steps, as shown in FIG. 1 and FIG. 2, a test tube substitute bag in which a plurality of accommodating portions 18 having the same internal volume are connected and formed is manufactured.
[0023]
Since the container 18 is sealed in the test tube substitute bag, the inside of the container 18 is aseptically and hygienically opened until it is opened by making it in a sterile chamber. Can be retained.
[0024]
In addition, as shown in FIG. 1, the test tube substitute bag is provided with a notch 20 at the side edge. Then, the flat surface film material 10 and the curved surface film material 12 are uniaxially stretched in the lateral direction so that the bag surface can be easily torn in the lateral direction (direction along the upper side and the lower side) with the notch 20 as the starting end. Each processed synthetic resin film material is used. Further, in this test tube substitute bag, a cutting line 22 formed by intermittent cuts for separating each other is formed between the adjacent accommodating portions 18.
[0025]
The test tube substitute bag configured as described above has a thumb and an index finger on one hand and a thumb and an index finger on the other hand, and grips both sides of the notch 20 formed on the side edge. Each container 18 is easily opened by tearing the bag laterally starting from the notch 20. Thus, when the sealed housing part 18 is opened, the opening part of the housing part 18 is restored by the elasticity of the curved surface film material 12 without touching the hand as shown in the perspective view of FIG. Open naturally and naturally. For this reason, using a pipette or the like, the sample liquid can be dispensed into the accommodating portion 18 whose bottom portion is closed through the wide opening 24. Therefore, this test tube substitute bag can be used as a test tube. In addition, the sample dispensed in the accommodating part 18 is not restricted to a sample liquid, A liquid culture medium etc. may be sufficient.
[0026]
The test tube substitute bag is formed of a flexible film material. For this reason, for example, in the case of diluting the sample liquid after dispensing the sample liquid into the storage part 18 and diluting the sample liquid, by picking around the bottom of the bag several times with the fingertips, The sample solution and the dilution water can be easily mixed uniformly.
[0027]
Further, the test tube substitute bag is formed by cutting the bag along a cutting line 22 formed between adjacent storage portions 18 so that the storage portions 18 are connected to each other as shown in a perspective view of FIG. Can be separated. Therefore, it is possible to separate and use the accommodating portions 18 one by one as required. Furthermore, since this test tube substitute bag is formed of a film material, it can be discarded as general waste unlike a glass test tube if it is sterilized as necessary after use.
[0032]
In the embodiment described above, the notch 20 is formed in the vicinity of the upper edge of the side edge of the bag as the opening means for opening the container 18 , but the opening means is other than the notch. For example, it may be of a peeling type in which the adhesive portion between the flat portion film material 10 and the curved portion film material 12 can be peeled from the upper side of the bag with a certain width. Alternatively, the sealed container may be opened using a sterilized instrument such as a bag without providing any opening means.
[0033]
Moreover, in the said embodiment, in order to be able to isolate | separate each accommodating part 18 individually, the cutting line 22 which consists of an intermittent cut | interval between each adjacent accommodating part 18 was processed and formed. For example, the cut line may be formed by reducing the thickness of the film material into a linear shape. In addition, each container 18 may be individually separated using a sterilized instrument such as a scissors without particularly providing a cutting line.
[0034]
【The invention's effect】
Engaging Ru inventions tubes substitute bag in claim 1 can be used in place of a conventional glass or plastic test tube, it can be discarded as regular garbage after use. In addition, since this test tube substitute bag is inexpensive and can be disposable, it is more advantageous than the conventional test tube in terms of efficiency and cost. Furthermore, since this test tube substitute bag is not bulky, it does not require much space for storage and is easy to carry, which is also advantageous in this respect.
[0035]
In the test tube substitute bag of the invention according to claim 2, the accommodating portions can be separated from each other without using an instrument such as a bag.
[0036]
In the test tube substitute bag according to the third aspect of the present invention, the housing portions can be easily separated from each other by cutting the bag at intermittent cut portions.
[Brief description of the drawings]
FIG. 1 is a front view of a test tube substitute bag showing one example of an embodiment of the present invention.
2 is a plan view of the test tube substitute bag shown in FIG. 1. FIG.
3 is a partially enlarged plan view of the test tube substitute bag shown in FIG. 1 as viewed from the direction of arrow A in FIG.
4 is a plan view further enlarging a portion B of FIG. 3; FIG.
FIG. 5 is an enlarged cross-sectional view taken along the line VV in FIG. 1;
6 is a perspective view showing a manufacturing process of the test tube substitute bag shown in FIG. 1. FIG.
FIG. 7 is a perspective view showing a manufacturing process of the test tube substitute bag shown in FIG. 1;
FIG. 8 is a perspective view showing a state in which an accommodation part of the test tube substitute bag shown in FIG. 1 is opened.
FIG. 9 is a perspective view showing a state in which the accommodation portions of the test tube substitute bag shown in FIG. 1 are opened and separated individually .
[Explanation of symbols]
10 plane part film material
12 curved surface film material
14 cylinder parts
16 folds
18 containment
20 notches 22 Cutting line consisting of intermittent cuts
Opening of 24 accommodating part

Claims (3)

Formed by joining a rectangular planar film material and a rectangular curved surface film material having a longitudinal dimension equal to that of the planar film material and a lateral dimension larger than the planar film material,
The left and right side edges of the flat part film material and the left and right side edges of the curved part film material are aligned and bonded to each other, and the curved surface with respect to the flat part film material in a flat state The part film material is bent into a regular waveform, and each valley part of the curved surface part film material and the flat part film material are bonded to each other in a straight line along each side, and the flat part film material and Forming a plurality of cylindrical portions parallel to each other with the curved surface portion film material,
Bonding the upper and lower edges of the flat part film material and the upper and lower edges of the curved part film material while forming ridges on the upper and lower edges of the curved part film material, respectively. Then, the upper and lower openings of each cylinder part are respectively closed,
A test tube substitute bag characterized in that a plurality of accommodating portions each having the same internal volume that are sealed are connected and formed.   The test tube substitute bag according to claim 1, wherein a cutting line for separating each other is formed between the adjacent accommodating portions.   The test tube substitute bag according to claim 2, wherein the cutting line is an intermittent cut.

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