Saliva collection container set

Abstract

To prevent, in a cap of a saliva sampling container set having a solution accommodation part therein, leakage from a container body closed the cap by ensuring that there is no sink mark on an upper end part of the cylinder wall of the solution accommodation part of the saliva sampling container set.SOLUTION: A saliva sampling container set 1 includes: a saliva receiver 2; a container body 3 with a saliva reservoir part 12; a cap 5 for closing a fitting mouth part 8 of the container body 3; a solution accommodation part 18 arranged inside of the cap 5; and a tear film member 4 arranged inside of the container body 3 for tearing a film 23 of the solution accommodation part 18 to drop a solution into the saliva reservoir part 12. An upper end part 24 of a cylindrical body 20 continuous with a cap top plate 15 of the cap 5 has a contacting face 26 that liquid-tightly contacts with an inner surface 25 of the fitting mouth part 8 of the container body 3. A thinned part 28 is provided at a position corresponding to the contacting face 26.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a saliva collection container set for DNA analysis that allows subjects to collect saliva themselves and that can be adapted for transportation, such as by mail, after collection. [Background technology]

[0002] In recent years, with the global spread of the novel coronavirus (COVID-19), PCR tests are widely used to determine whether or not a person is infected. In PCR tests, samples are obtained by swabbing the subject's nose and throat to collect mucus containing cells, or by collecting saliva from the subject.

[0003] In addition to testing for the new coronavirus, general PCR tests are also used to examine DNA for the risk of developing cancer and other diseases. Sets are now being provided for placing the subject's saliva in a container and sending it to a testing service institution.

[0004] The kits used for PCR tests involve placing saliva spit out by the subject into a special container, which the subject caps themselves and then transports via mail, etc. After the subject spits saliva into the special container, there are types in which the saliva must be mixed with a chemical solution intended to inactivate the virus contained in the saliva.

[0005] With such collection sets, the subject must put the saliva and medicinal liquid into the container and then close the cap, so it is necessary to stop the liquid from flowing with the cap.

[0006] When screwing a cap onto the mouth of a typical liquid container to seal the liquid, as is done with PET bottle caps, for example, an inner ring with a thin, tongue-shaped cross section is provided on the top of the cap, and the outer surface of the inner ring makes liquid-tight contact with the inner surface of the mouth of the liquid container.

[0007] The applicant of the present application has also previously proposed an invention for a saliva collection container set for DNA analysis, and this saliva collection container set is shown in Patent Document 1. This set comprises a saliva receiver, a container body that collects and receives saliva poured into it from the saliva receiver, and a cap that is attached to and closes the opening of the container body after the saliva receiver has been removed, all of which are molded from synthetic resin material.

[0008] Furthermore, the cap contains a storage space surrounded by a cylindrical body and is provided with a drug solution storage section in which the lower part of the cylindrical body is closed with a resin laminated film containing aluminum foil, and a tear-off film member is removably arranged inside the container body to tear the film of the drug solution storage section when the cap is attached, thereby opening the drug solution storage section. When the cap is attached to the attachment opening of the container body, the cylindrical body fits from above into the tearable film member that tears the film, and when the cap is removed from the container body, the tearable film member is removed from the container body along with the cap.

[0009] The caps used in such saliva collection container sets have a large space inside the cap for containing liquids such as medicinal solutions, so it may be difficult to install the above-mentioned inner ring alone due to the constraints of the container size.

[0010] In the saliva collection container set described above, in order to stop the liquid flow with a cap having a liquid medicine storage section inside, the upper part of the cylindrical wall of the cylinder that is continuous with the cap top plate is made thick, and its outer surface is in liquid-tight contact with the inner surface of the attachment opening of the container body, thereby preventing the mixture of saliva and liquid medicine from leaking out of the container body closed with the cap. [Prior art documents] [Patent documents]

[0011] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-211890 Summary of the Invention [Problem to be solved by the invention]

[0012] However, since the cap is molded from a synthetic resin material, shrinkage of the resin material causes sink marks on the upper part of the cylindrical wall, making it difficult to shape the outer surface of the upper part of the cylindrical wall appropriately. Furthermore, if the attachment opening of the container body is closed with a cap that cannot reproduce the appropriate outer peripheral surface shape, there is a problem that liquid is likely to leak.

[0013] In view of the above circumstances, the present invention aims to prevent the occurrence of sink marks due to shrinkage of the synthetic resin material at the top of the cylindrical wall of the medicinal liquid storage section in a cap for a saliva collection container set having a medicinal liquid storage section inside, thereby preventing liquid leakage from the container body closed with the cap. [Means for solving the problem]

[0014] The present invention has been made in consideration of the above-mentioned problems, and comprises: a container body having a saliva reservoir for storing saliva; a cap for closing the attachment opening at the top of the container body, The inside of the cap is provided with a medicinal solution storage section, which is made up of a cylindrical body continuous with the cap top plate and a film covering the lower opening of the cylindrical body, and contains the medicinal solution inside; A tearable film member is disposed inside the container body, positioned above the saliva reservoir, and configured to allow saliva introduced from the attachment opening side to pass toward the saliva reservoir, and to tear the film of the medicinal solution storage section when the cap is attached to the attachment opening of the container body, allowing the medicinal solution to pass toward the saliva reservoir, The upper end of the cylindrical body connected to the cap top plate has a sliding contact surface that can be slidably contacted with the inner circumferential surface of the attachment opening of the container body, and a recessed portion is provided at the portion of the upper end of the cylindrical body that corresponds to the sliding contact surface. 、 A tearable film member rotation prevention means is provided at the tearable film member arrangement position in the container body, and this tearable film member rotation prevention means is engaged with the tearable film member to regulate the axial rotation of the tearable film member along the cap rotation direction, and the tearable film member can be arranged from the attachment opening side to the tearable film member arrangement position, The tear film member rotation prevention means is composed of a plurality of upwardly facing convex bodies each having a pointed wedge shape facing upward in the height direction of the container body, which are arranged at regular intervals in the circumferential direction of the container body at the tear film member arrangement position, The tear film member has a downward convex body on the outer periphery, which is formed in a pointed wedge shape facing downward in the height direction of the container body and corresponds to the shape between adjacent upward convex bodies, The tearable film member is arranged at the tearable film member arrangement position so that the downward convex body enters between the upward convex body from above in the height direction of the container body, and the downward convex body is engaged with the upward convex body, so that the axial rotation along the cap rotation direction is restricted.The present invention provides a saliva collection container set characterized by the above, thereby solving the above problems.

[0015] Furthermore, the present invention advantageously provides a recessed portion on the outer periphery of the mounting opening of the container body at a height position corresponding to the recessed portion at the upper end of the cylinder, so that the recessed portion at the upper end of the cylinder faces the recessed portion on the outer periphery of the mounting opening of the container body, with the sliding surfaces of the upper ends of the joined cylinders and the inner periphery of the mounting opening of the container body between them.

[0016] In addition, the present invention is advantageous in that when attached to the mounting opening of the container body, the cap and the tearable film member arranged inside the container body are not fitted together, and a gap is formed between the cap attached to the mounting opening and the tearable film member in which the film torn by the tearable film member can be positioned. [Effects of the Invention]

[0019] According to the present invention, the recessed portion is provided at the upper end of the cylindrical body of the cap, in a portion corresponding to the sliding surface that contacts the inner peripheral surface of the attachment opening of the container body. By providing this recessed portion, it becomes easy to thin the thickness of the upper end of the cylindrical body, which has the sliding surface as its outer surface, so that shrinkage after the cap is molded from a synthetic resin material by injection molding or the like does not occur at the upper end of the cylindrical body, and a cap that accurately reproduces the shape of the outer surface can be obtained.By using this cap, the liquid-stopping effect can be ensured after the attachment opening of the container body is closed.

[0020] Furthermore, according to the present invention, a recessed portion is provided on the outer periphery of the mounting opening of the container body at a height position corresponding to the recessed portion at the upper end of the cylindrical body, and the thickness of the mounting opening is reduced, thereby providing flexibility. Caps are generally made from synthetic resin, and the cap in this saliva collection container set is also made from synthetic resin. Although the dimensions of the molded caps tend to vary, the opening deforms during the capping operation, absorbing the dimensional variations and stabilizing the cap tightening torque even when the dimensions are varied.

[0021] Furthermore, according to the present invention, the cap and the tearable film member are non-fitting components when attached to the opening of the container body. In other words, since no additional structure or mechanism is required to pull up the tearable film member together with the cap when removing the cap from the container body, the shape of the cap's cylindrical body and the shape of the tearable film member can be simplified. Furthermore, since there is no need to pull up the tearable film member together with the cap, many of the components that come into contact with the subject's saliva are left inside the container body, reducing the risk of the person conducting the test coming into contact with saliva.

[0022] In addition, according to the present invention, a means for preventing rotation of the tearable film member is provided on the inner surface of the container body at the position where the tearable film member is placed, so that the tearable film member does not rotate when the cap is turned, thereby ensuring that the film in the drug solution storage section can be broken reliably.

[0023] Furthermore, according to the present invention, the means for preventing rotation of the tearing film member comprises a plurality of upwardly facing convex bodies, each having a pointed wedge shape facing upward in the height direction of the container body, arranged at regular intervals around the circumference of the container body at the tearing film member arrangement position, and the tearing film member is provided with downwardly facing convex bodies on its outer periphery, each having a pointed wedge shape facing downward in the height direction of the container body, and corresponding to the shape between adjacent upwardly facing convex bodies around the circumference of the container body. This makes it easier for the downward convex body of the tearable film member to be guided by the inclined side of the upward convex body on the container body side when the tearable film member is placed inside the container body, and the downward convex body of the tearable film member can smoothly fit between the upward convex bodies, preventing the tearable film member from being positioned inside the container body in an inclined state. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is an explanatory diagram showing an example of a saliva collection container set according to the present invention, with components separated. FIG. [Figure 2] This shows a saliva receiving device, where (a) is an explanatory diagram showing the state as seen from above, (b) is an explanatory diagram showing a cross section in the wide width direction, and (c) is an explanatory diagram showing a partial cross section in the narrow width direction. [Figure 3] FIG. 2 is an explanatory diagram showing a cross section of the container body. [Figure 4] FIG. 2 is an explanatory diagram showing a cross section of the cap. [Figure 5] FIG. 4 is an explanatory cross-sectional view showing the state in which the cap is attached to the container body. [Figure 6] FIG. 4 is an explanatory diagram showing an enlarged view of an upper end portion of a cylindrical wall of the cap, illustrating a recessed portion. [Figure 7] This shows an example of a tearable film member, where (a) is an explanatory diagram showing the state as viewed from above, (b) is an explanatory diagram showing the state as viewed from the side, (c) is an explanatory diagram showing the state as viewed from below, and (d) is an explanatory diagram showing the state as viewed from diagonally above. [Figure 8] The diagrams show the attachment and removal of the cap, with (a) being an explanatory diagram showing the state before the drug solution storage section is inserted into the attachment opening, (b) being an explanatory diagram showing the state after the cap has been attached to the attachment opening and the film has been broken, and (c) being an explanatory diagram showing the state after the cap has been removed after the drug solution has been discharged. DETAILED DESCRIPTION OF THE INVENTION

[0025] Next, the present invention will be described in detail based on the illustrated embodiments. Figure 1 shows a saliva collection container set 1 according to the present invention, with the components separated. As shown in Figure 1, the set includes a saliva receiver 2 that is slightly flattened and funnel-shaped to make it easier for a person to place their mouth over it, a cylindrical container body 3 to which the saliva receiver 2 is attached or detached, a tearable film member 4 to be placed inside the container body 3, and a cap 5 that is attached to the top of the container body 3 and used to close the container body 3, all of which are made of synthetic resin.

[0026] (saliva receiver) The saliva receiver 2 is shown alone in Figure 2, and like the invention shown in Patent Document 1, a connection port 6 is provided at the bottom as the cylindrical part of a funnel. The top is also made wide and flat in one direction to make it easy for a person (subject) to place it near their mouth, and the spat-out saliva is guided to the connection port 6.

[0027] In the example of the saliva receiver 2 shown in the figure, a guide tube 7 is provided integrally with the saliva receiver 2, which forms a gap between itself and the connection port 6 and covers the outer periphery of the connection port 6. When saliva is stored in the container body 3, the connection port 6 of the saliva receiver 2 is inserted into the inside of the attachment port 8, which is the opening at the top of the container body 3, and the guide tube 7 slides against a male thread 9 located on the outer periphery of the container body 3, preventing the saliva receiver 2 from tilting relative to the container body 3. Note that the guide tube 7 is not necessarily required for attaching the saliva receiver 2 to the container body 3.

[0028] (Container body) The connection port 6 of the saliva receiver 2 is provided in the container body 3 so as to be insertable into and removable from the inside of the attachment port 8 , and therefore the saliva receiver 2 is attachable to and detachable from the container body 3 .

[0029] 3, the container body 3 is connected to the lower part of the attachment opening 8 by a body 10 having a smaller diameter than the attachment opening 8. A mid-sole 11 having a downwardly convex vertical cross section is provided in the middle part of the body 10, and the part above the mid-sole 11 serves as a saliva (specimen) reservoir 12.

[0030] On the outer periphery of the part of the body 10 corresponding to the saliva reservoir 12, there is an entry line 13 that is used for positioning by an automatic machine that attaches labels to the container body 3. This entry line 13 has the shape of a groove that runs around the entire outer periphery of the container body 3.

[0031] The boundary between the mounting opening 8 and the body 10 of the container body 3 is a step formed by making the inner diameter of the body 10 smaller than the inner diameter of the mounting opening 8. A receiving step 14 consisting of a slope that slopes downward toward the center of the container body 3 is provided around the inner periphery at the step position. The receiving step 14 is a portion on which the tearable film member 4 is placed, and the position where it is properly placed on this portion is the tearable film member placement position 15.

[0032] When the cap 5 is attached to the container body 3 with the tearable film member 4 positioned at the tearable film member position 15, the tearable film member 4 tears the film covering the storage space, as described below, allowing the stored medicinal liquid to flow out of the cap 5.

[0033] (cap) As shown in FIG. 4, the cap 5 has an outer peripheral wall 17 with a female thread 16 , and also has a drug solution storage section 18 arranged inside the cap 5 and surrounded by the outer peripheral wall 17 . The drug solution storage section 18 has a storage space 22 surrounded by a cylindrical wall 21 of a cylindrical body 20 that is integral with a cap top plate 19, and is closed by a film 23 attached to the lower edge of the cylindrical wall 21.

[0034] In the saliva collection container set 1 of this embodiment, a medicinal liquid that is mixed with the saliva placed in the saliva reservoir 12 to inactivate viruses contained in the saliva is filled into the storage space 22 before sealing with the film 23. After filling, the film 23 is sealed along the lower edge of the cylindrical wall 21 to form the medicinal liquid storage section 18 in which the medicinal liquid is sealed.

[0035] In the saliva collection container set 1, after the subject spits out saliva, the saliva receiver 2 is removed, and then the cap 5 is attached to the top of the container body 3 and the attachment opening 8 is closed, thereby breaking the film 23 of the drug solution storage section 18.

[0036] The film 23 is provided so that a mixture of saliva in the saliva reservoir 12 and the medicinal liquid that has flowed down from the medicinal liquid storage section 18 does not leak out. The shape of the tearable film member 4 that tears the film 23 will be described later.

[0037] 5 and 6 show the state in which the mounting opening 8 is closed with the cap 5. As shown in the figures, except for the upper end 24 of the cylindrical wall 21, there is a gap between the cylindrical wall 21 and the inner surface of the container body 3, and the cylindrical wall 21 is not in contact with the inner surface of the container body 3. The outer peripheral surface (on the outer peripheral wall 17 side) of the upper end 24 of the cylindrical wall 21 is a sliding surface 26 that contacts the inner peripheral surface 25 of the mounting opening 8 of the container body 3 in a liquid-tight manner, and this upper end 24 itself is a part that plays a role in stopping liquid, similar to the inner ring of a PET bottle cap, etc.

[0038] (Cap recessed part) This embodiment of the present invention is devised to properly stop the liquid with the upper end 24 of the cylindrical wall 21. This devise is shown in Figure 5, in which the portion of the cap top plate 19 that is aligned with the position of the upper end 24 of the cylindrical wall 21 is recessed in a stepped shape downward, and this stepped portion and the upper end 24 form a groove-like recessed portion 27.

[0039] As shown in the cross section of cap 5 in Figure 4, the recessed space of recessed portion 27 is a recessed portion 28 formed adjacent to upper end portion 24 in the cap radial direction and on the opposite side of sliding surface 26. 4 to 6, recessed portion 28 (void portion) for recessed portion 27 is not located in the center of recessed portion 27 but is located closer to sliding surface 26. By arranging recessed portion 28 closer to sliding surface 26, the thickness of upper end portion 24 is set smaller than the thickness of bottom plate portion 27a of recessed portion 27 and the thickness of vertical wall plate portion 27b facing upper end portion 24 of recessed portion 27.

[0040] In this way, the upper end portion 24 having a small thickness and the recessed portion 28 are arranged adjacent to each other in the cap diameter direction, so that the sliding surface 26 after molding of the cap 5 is properly reproduced without sink marks, and when the mounting opening 8 of the container body 3 is closed with the cap 5, liquid leakage is prevented.

[0041] Furthermore, the thickness of the upper end portion 24 is thinner than the other two plate portions (bottom plate portion 27a, vertical wall plate portion 27b) in the recessed portion 27, making it easier to deform. Therefore, when the cap 5 is closed, the upper end portion 24 that abuts against the mounting opening portion 8 deforms, thereby increasing the degree of tight contact, which is also effective in preventing liquid leakage.

[0042] (The recessed part on the mounting opening side of the container body) A recessed portion 30 is also provided on the outer peripheral surface 29 of the mounting opening 8 of the container body 3. The recessed portion 30 is located at a height corresponding to the recessed portion 28 of the cap 5. As shown in Figure 6, the recessed portion 28 on the cap 5 side and the recessed portion 30 on the container body 3 side face each other, with the sliding surface 26 of the upper end 24 of the joined cylindrical wall 21 and the inner peripheral surface 25 of the mounting opening 8 of the container body 3 between them.

[0043] In this way, a recessed portion 30 is formed on the outer surface 29 of the mounting opening portion 8, which is in sliding contact with the upper end portion 24 of the cylindrical wall 21, making the mounting opening portion 8 easy to deform. Therefore, even if there is variation in the diameter of the upper end portion 24 of the cap 5, the mounting opening portion 8 deforms when the capping operation is performed, absorbing the variation in the diameter of each cap 5, and having the effect of stabilizing the cap closing torque due to dimensional variation.

[0044] (Broken film material) The tearable film member 4 is roughly cylindrical with a perforated interior, and is provided with a flange 31 around its outer periphery that can be placed on the receiving step 14 of the container body 3, and a fitting cylindrical portion 32 extends downward from the position of the flange 31.

[0045] The fitting tube portion 32 is a portion that is fitted into the upper portion of the saliva reservoir portion 12, the inner diameter of which is reduced from the position of the receiving step portion 14. A plurality of anti-detachment ribs 33 are provided on the outer periphery of the fitting tube portion 32 to prevent the flange 31 from accidentally slipping out upward from the state in which it is supported by the receiving step portion 14 and placed at the tear-off film member placement position 15.

[0046] Furthermore, an annular opening blade 34 is integrally provided on the upper part of flange 31. Opening blade 34 is a part that breaks film 23 of medicinal solution containing portion 18 when cap 5 is attached to attachment opening portion 8 as described above.

[0047] (Cylindrical body and tear film part - non-fitting) The opening blade 34 is arranged so as not to interfere with the cylindrical body 20 of the drug solution storage section 18, the outer diameter of the opening blade 34 is smaller than the inner diameter of the cylindrical wall 21, and a sufficient gap 35 is provided between the cylindrical wall 21 and the opening blade 34 so that the cut film will not be pinched between them. A similar gap 35 is also formed between the lower end of the cylindrical wall 21 and the flange 31, so that the cylindrical body 20 will not push the breaking film member 4 further downward from the breaking film member arrangement position 15.

[0048] In this way, although the cap 5 is attached to the container body 3 and the film 23 of the drug solution storage section 18 is torn by the opening blade 34, the tearable film member 4 and the cylindrical body 20 of the cap 5 do not fit together when the cap 5 is attached to the container body 3. Therefore, in this embodiment, the tearable film member 4 is arranged to remain inside the container body 3 when the cap 5 is removed from the container body 3.

[0049] (anti-slip structure) The inner peripheral surface of the container body 3 at the tear-off film member placement position 15 is provided with a tear-off film member rotation prevention means 36 that restricts the axial rotation of the tear-off film member 4 inside the container body 3 to prevent it from spinning freely. The tear-off film member rotation prevention means 36 is made up of a number of upwardly facing convex bodies 37 arranged in a pointed wedge shape facing upward in the height direction of the container body 3, and the multiple upwardly facing convex bodies 37 are positioned so as to face the outer peripheral surface of the flange 31 of the tear-off film member 4, and are arranged at regular intervals in the circumferential direction of the container body 3 along the receiving step 14 of the container body 3. See Figure 3.

[0050] The breaking film member 4, which is arranged at the breaking film member arrangement position 15 while being supported by the receiving step portion 14, is configured so that when it begins to rotate in the circumferential direction, the flange 31 engages with the upward convex body 37 of the breaking film member rotation prevention means 36, and the engagement of the flange 31 prevents the breaking film member 4 from rotating freely, and also prevents it from rotating in conjunction with the rotation of the cap 5 in the closing direction or the opening direction.

[0051] 7 shows a flange 31 having a plurality of downward protrusions 38 that engage with upward protrusions 37. The downward protrusions 38 are shaped like pointed wedges facing downward in the height direction of the container body, and are provided as downwardly convex triangles shaped so that they can be placed between adjacent upward protrusions 37 in the circumferential direction of the container body 3.

[0052] When the tearable film member 4 is placed at the tearable film member placement position 15 of the container body 3, the downward convex body 38 fits between the upward convex bodies 37, the gap of which gradually widens upward. Therefore, the tearable film member 4 can be smoothly placed at the tearable film member placement position 15 by dropping it from above in the height direction of the container body 3, and after placement, rotation of the tearable film member 4 in the axial direction is restricted.

[0053] In this way, the means 36 for preventing rotation of the tearable film member is made up of a plurality of upwardly facing convex bodies 37 arranged in a row, each of which has a wedge-like shape that protrudes upward, and the tearable film member 4 side is arranged in a circumferential direction of the container body so that it fits between adjacent upwardly facing convex bodies 37 and has a locking member when it moves in a circumferential direction of the container body.As described above, this has the effect of allowing the tearable film member 4 to be placed in a predetermined position by the simple operation of lowering the tearable film member 4 from the attachment opening 8 side of the container body 3.

[0054] (Attaching and removing the cap) In the conventional saliva collection container set shown in Patent Document 1, the tearable film member is removed from the container body together with the cap, but as described above, in the saliva collection container set 1 of this embodiment, the tearable film member 4 remains on the container body 3 side.

[0055] 8 shows the attachment and detachment of the cap 5 to the container body 3 in the saliva collection container set 1 of this embodiment. After the subject pours a required amount of saliva into the saliva reservoir 12 of the container body 3 and removes the saliva receiver 2, the cap 5 is placed over the attachment opening 8 of the container body 3 by inserting the medicinal solution storage section 18 into the inside of the attachment opening 8 (A). Then, by rotating the cap 5 in the closing direction and lowering it, the film 23 of the medicinal solution storage section 18 is torn by the opening blade 34 of the tearing film member 4 located at the tearing film member arrangement position 15, and the stored medicinal solution A falls, passes through the inside of the tearing film member 4, etc., into the saliva storage section 12, and mixes with the saliva (b).

[0056] Figure 8(b) shows a state in which the sliding surface 26 of the upper end 24 of the cylindrical wall 21 is in liquid-tight contact with the inner peripheral surface 25 of the attachment opening 8 of the container body 3, preventing liquid from entering. In the method of handling this saliva collection container set 1, the container body 3 with the attachment opening 8 closed with the cap 5 is now at the stage of being sent to a PCR testing institution. Then, at the PCR testing institution, only the cap 5 is removed (c).

[0057] The saliva collection container set 1 of this embodiment is provided with a mechanism to enable subjects who are not familiar with the operation of attaching the cap 5 to the container body 3 to rotate the cap 5 in the closing direction by the appropriate amount and stop it.

[0058] Specifically, a boss 39 protrudes downward from the lower end of the outer wall 17 of the cap 5, and a flange 40 protrudes outward from the outer surface below the male thread 9 of the container body 3, and a claw-shaped first stopper 41 is provided on this flange 40 (see Figure 1). When the subject closes the attachment opening 8 of the container body 3 with the cap 5, the boss 39 of the cap 5 abuts against the first stopper 41, thereby stopping the rotation of the cap 5 and preventing the cap 5 from being turned more than necessary.

[0059] Furthermore, a claw-shaped second stopper 42 is provided on the container body 3 and protrudes outward from a position above the flange 40. Furthermore, a recess (not shown) into which the second stopper 42 fits when the cap 5 abuts against the first stopper 41 and stops at the rotation end position in the closing direction is provided on the lower end side of the outer peripheral wall 17 of the cap 5, and when the closed cap 5 begins to inappropriately rotate in the opening direction due to vibration or the like, the second stopper 42 engages with the inner wall surface of the recess, preventing the cap 5 from loosening. [Explanation of symbols]

[0060] 1...Saliva collection container set 2...Saliva receiver 3...Container body 4...Tearable film member 5...Cap 6...Connection port 8…Attachment opening 10...Torso 12...Saliva reservoir 15...Breaking film component placement position 18...Medicine solution storage section 19...Cap top plate 20...Cylinder 21...Cylinder wall 23...Film 24...Top end 25...Inner surface of the mounting opening 26…Sliding surface 27...Depression 28...Inner recess of upper end 29...Outer surface of the attachment port 30...Outer recess of the mounting opening 31...Flange 32...Fitting cylinder part 34...Opening blade 35...gap 36...Tear film member rotation prevention means 37...Upward convex body 38...Downward convex body A...Chemical solution

Claims

1. a container body having a saliva reservoir for storing saliva; a cap for closing the attachment opening at the top of the container body, The inside of the cap is provided with a medicinal solution storage section, which is made up of a cylindrical body continuous with the cap top plate and a film covering the lower opening of the cylindrical body, and contains the medicinal solution inside; A tearable film member is disposed inside the container body, positioned above the saliva reservoir, and configured to allow saliva introduced from the attachment opening side to pass toward the saliva reservoir, and to tear the film of the medicinal solution storage section when the cap is attached to the attachment opening of the container body, allowing the medicinal solution to pass toward the saliva reservoir, the upper end of the cylindrical body connected to the cap top plate has a sliding contact surface that is in sliding contact with the inner circumferential surface of the attachment opening of the container body, and a recessed portion is provided at the upper end of the cylindrical body at a portion that corresponds to the sliding contact surface; A tearable film member rotation prevention means is provided at the tearable film member arrangement position in the container body, and this tearable film member rotation prevention means is engaged with the tearable film member to regulate the axial rotation of the tearable film member along the cap rotation direction, and the tearable film member can be arranged from the attachment opening side to the tearable film member arrangement position, The tear film member rotation prevention means is composed of a plurality of upwardly facing convex bodies each having a pointed wedge shape facing upward in the height direction of the container body, which are arranged at regular intervals in the circumferential direction of the container body at the tear film member arrangement position, The tear film member has a downward convex body on the outer periphery, which is formed in a pointed wedge shape facing downward in the height direction of the container body and corresponds to the shape between adjacent upward convex bodies, The saliva collection container set is characterized in that the tearable film member is positioned at the tearable film member position so that the downward convex body enters between the upward convex body from above in the height direction of the container body, and the downward convex body engages with the upward convex body, restricting axial rotation along the cap rotation direction.

2. 2. A saliva collection container set according to claim 1, wherein a recessed portion is provided on the outer periphery of the attachment opening of the container body at a height corresponding to the recessed portion at the upper end of the cylindrical body, so that the recessed portion at the upper end of the cylindrical body faces the recessed portion at the outer periphery of the attachment opening of the container body, with the sliding surfaces of the upper ends of the joined cylindrical bodies and the inner periphery of the attachment opening of the container body between them.

3. A saliva collection container set as described in claim 1 or 2, wherein when attached to the mounting opening of the container body, the cap and the tearable film member arranged inside the container body are not interlocked, and a gap is formed between the cap attached to the mounting opening and the tearable film member in which the film torn by the tearable film member can be positioned.

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