JP2008220541A - Multi chamber container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove creases at a portion in the root part of a liquid medicine bag despite of attaching a medicine discharge prevention implement for preventing a puncture under a non-communicated state in a multi chamber container. <P>SOLUTION: The medicine discharge prevention implement 28 includes upper/lower half bodies 28A and 28B clamped by an outlet in the liquid medicine bag, and a restriction member uniting and restricting the upper/lower half bodies 28A and 28B under elasticity, and prevents the puncture when the medicine discharge prevention implement 28 is attached to the liquid medicine bag. The medicine discharge prevention implement includes a pair of flaps 30 and 32 abutting on liquid medicine bag opposite surfaces, when abutting on the liquid solution bag opposite surfaces, the flaps 30 and 32 are wide opened in response to the swelling of the liquid medicine bag in the communication of the liquid medicine bag to release the restriction of the upper/lower half bodies 28A and 28B by the restriction members, and the medicine discharge prevention implement 28 is separated from the liquid medicine bag to allow the puncture. The opposite bases of the flaps 30 and 32 form recessed surfaces 30A and 30B and, even if creases are formed in the liquid medicine bag root part 10' when attaching the medicine discharge prevention implement 28 thereto, the creases can be smoothed and removed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a multi-chamber container that is provided with a medicine discharge prevention tool at a discharge port to prevent puncture when not opened.

  A discharge port as a plastic molded product is attached to the outer periphery of the chemical solution bag made of a synthetic resin film, and the inside of the chemical solution bag is divided into a plurality of portions by a weak seal portion formed by releasably welding the upper and lower layers of the synthetic resin film constituting the chemical solution bag. There is a multi-chamber container which is configured in a compartment and opens a weak seal portion at the time of infusion, and mixes the medicine between the compartments and discharges them from the outlet. In this type of multi-chamber container, the opening operation of the weak seal part before infusion is essential, and if the infusion is performed without the weak seal part being opened, only one liquid will be infused, resulting in an erroneous operation. Therefore, in order to prevent such an erroneous operation, a device in which a medicine discharge prevention tool is attached to the discharge port is known (Patent Document 1). In this technology, the medicine discharge prevention device is configured with a cylindrical body divided in half, and the discharge opening is covered by combining the half cylindrical body with the discharge opening interposed therebetween, and access to the rubber stopper for puncture is blocked Thus, it is possible to prevent an erroneous operation that the infusion is performed with only one solution when the chemical solution bag is not opened. A pair of flaps extend from the half cylinder, and the flaps are sandwiched and held under the elastic force from the outer surface of the synthetic resin film constituting the drug bag in the vicinity of the discharge port. The weak seal portion is peeled and opened by pressurizing the portion of the chemical solution in the chemical solution bag. That is, the chemical solution bag is expanded by pressurization of the chemical solution bag, a peeling force is applied to the weak seal portion, and the weak seal is opened. The chemical bag is rapidly expanded at the attachment site of the discharge port by the shocking flow of the chemical solution induced in the chemical bag when the weak seal is opened, the flap is expanded and biased, and the pair of restrained states by the elastic restraining member is The drug discharge prevention device is released from the drug solution bag. Therefore, the discharge port is exposed, the infusion set can be accessed, and the mixed drug solution can be infused by puncture.

In addition, there are Patent Documents 2 and 3 as prior arts related to the present invention.
WO2005 / 097039 Utility Model Registration Gazette No. 2600011 Japanese Utility Model Publication No. 58-161814

  The medicine discharge prevention device is attached after the medicine solution is stored and sealed in each compartment of the medicine bag, and the discharge port is attached to the outer peripheral portion of the medicine bag and sealing is completed. In other words, the pair of halved cylindrical bodies constituting the medicine discharge prevention device are arranged so that the discharge port is sandwiched from above and below, and the flaps extending from the respective half cylindrical bodies contact the medicine bag from above and below. It arrange | positions so that it may hold | maintain and the contact state of the flap with respect to the synthetic resin film opposing surface is hold | maintained by the elastic restraint member. The flap has a flat bottom surface, so that the flap is brought into contact with the synthetic resin film facing surface over substantially the entire surface. The synthetic resin film that forms the drug bag is rounded according to the shape of the discharge port at the upper and lower diameter portions of the discharge port, but is crushed between the flat flaps closest to the discharge port. The shape suddenly changes from round to flat and wrinkles are likely to occur. The upper and lower flaps are in contact with the drug bag facing surface on the entire surface, and hold the drug bag under elastic force from above and below. Therefore, the wrinkles generated on the surface of the synthetic resin film when the medicine discharge prevention device is attached are fixed, and if many products are stacked during transportation, an excessive force is applied to the wrinkles and defects such as pinholes are generated. There was a risk of occurrence.

  The present invention has been made in view of the above-described problems, and is intended to be able to eliminate wrinkles generated at the base portion with respect to the discharge port of the drug solution bag when the drug discharge prevention tool is mounted on the drug bag. Objective.

  The multi-chamber container according to the present invention is formed of a flexible membrane material, and is attached to a drug bag having a plurality of compartments in which a drug is individually accommodated by a weak seal and an outer peripheral portion of the drug bag. A discharge opening that opens in one of the plurality of compartments; and a drug discharge prevention device that is attached to the outside of the drug bag and blocks discharge of the drug from the discharge port when the weak seal is not opened, The tools are opposed to each other with the discharge port interposed therebetween, and a pair of engaging members that cooperate with the swelling deformation of the drug solution bag when the drug bag is opened, and the engagement members are combined and restrained in a normal state so as to access the discharge port. The engaging member comprises a restraining member that is released from the restraining state so that the medicine discharge preventing tool is released from the chemical solution bag when the engaging member cooperates with the swelling deformation of the chemical solution bag, and the opposing surfaces of the pair of engaging members are Substantial extension of the outlet A shape which is the medical bag in a non-contact at. Each engaging member can be configured as a flap or the like, and is in contact with the opposing flexible membrane material surface and sandwiched from above and below the drug bag. Therefore, when the drug bag is opened due to weak seal peeling, the swelling deformation of the drug bag is transmitted to the drug discharge prevention device by the flap. The engaging member has a shape that is not in contact with the drug bag, that is, the drug solution bag is substantially free at a substantial extension site of the discharge port or a local site in the width direction (for example, the central portion). As the means, it is possible to make the drug bag facing surface of the engaging member such as a flap concave. An engaging member such as a flap is shaped so that the drug bag is free at a substantially extended part of the discharge port or a local part in the width direction, but the engaging member such as a flap is in contact with the drug bag at both ends. Therefore, the engaging member is expanded in conjunction with the expansion of the drug bag when the drug bag is opened, the constraint by the restraining member is released, the drug discharge prevention tool is released, and the infusion can be started.

  The medicine discharge prevention device is attached after the discharge port is attached and the liquid medicine is sealed in the medicine bag. That is, the engagement member such as the flap is attached so as to sandwich the drug bag from above and below, the engagement member such as the flap is held together by the elastic type restraining means, and the discharge port is covered by the drug discharge prevention tool. And puncture is prevented. By sandwiching the drug bag from above and below by the engagement member, the drug bag is crushed at the contact portion with the engagement member, but the engagement member such as a flap has a discharge port by means such as a concave bottom surface. The drug solution bag is substantially free at the extended region of the region or the local region in the width direction. Therefore, even if wrinkles occur at the base of the chemical solution bag with respect to the discharge port when the chemical discharge prevention device is attached to the chemical solution bag, the drug bag is displaced relative to the chemical discharge prevention device, and the chemical solution bag is tensioned. You can stretch the cocoon. In this way, the medicine discharge prevention device is shipped as a product with the medicine bag mounted.

  By making the bottom surface of the flap concave, etc., the drug bag is free at the substantial extension part of the discharge port, so after attaching the drug discharge prevention tool to the drug bag, at the base part of the drug solution bag with respect to the discharge port Even if wrinkles are generated, the wrinkles can be stretched by applying an appropriate tension between the drug discharge prevention device and the drug bag. Therefore, it is possible to prevent the occurrence of pinholes caused by wrinkles during handling such as transportation.

  1 to 7, the medical mixed-type liquid medicine sealing body includes a flat medicine bag 10 and a discharge port 12. The drug bag 10 is made of a soft film (flexible material of the present invention) such as polyethylene having a thickness of 200 microns. The outer periphery of the polyethylene film is sealed by a strong seal portion 14 formed by being pressed at a high temperature such as 130 ° C., which is sufficiently higher than its softening temperature, and has a rectangular bag shape. A suspension hole 16 is formed in the strong seal portion 14, and the drug bag 10 is suspended and held by the suspension hole 16 on an infusion stand or the like to perform infusion or dialysis.

  The weak seal portion 18 extends over the entire width at an intermediate portion in the length direction of the drug bag 10, and the front and back surfaces of the drug bag 10 are bonded by the weak seal portion 18, and the internal cavity of the drug bag 10 is connected to the first compartment 20. It is partitioned into a second compartment 22. The first compartment 20 is filled with the first chemical solution, and the second compartment 22 is filled with the second chemical solution. The weak seal portion 18 is formed by pressurizing the front and back surfaces of the polyethylene film forming the drug bag 10 at a low temperature such as 120 ° C., which is slightly higher than its softening temperature. Therefore, the strong seal portion 14 is welded by pressurizing the drug solution in the drug bag 10 from the outside in the compartments 20 and 22 with the respective drug solutions stored in the first compartment 20 and the second compartment 22. As is (in a non-peeled state), the weak seal portion 18 can be broken and opened, and the first chemical solution and the second chemical solution can be mixed.

  The outlet 12 should be made of a plastic material such as polyethylene having rigidity that can maintain its form (such as a plastic material similar to the drug bag 10 in order to obtain adhesion to the drug bag 10). There is a molded product. As shown in FIG. 2, the discharge port 12 is opened in the vertical direction, the middle is a tapered portion 12-1, and is formed in a cylindrical shape having a flange portion 12-2 (FIG. 2) at the upper end. A polyethylene cap 12-3 is abutted and welded to the flange portion 12-2, and a rubber inner lid 23 is attached to the bottom opening of the cap 12-3. At the time of infusion, the rubber inner lid 23 is punctured by the puncture needle 24 of the infusion set (infusion device), and the inside cavity of the medicine bag 10 is communicated with the infusion tube 26 to perform infusion. The plastic film forming the front and back surfaces of the medicine bag 10 is heated and adhered while sandwiching the cylindrical portion of the discharge port 12 from above and below, whereby the drug bag 10 is sealed with respect to the discharge port 12.

  In FIG. 1, reference numeral 28 denotes a medicine discharge prevention device according to the present invention. The medicine discharge prevention device 28 is a puncture needle of an infusion set to the discharge port 12 in a state where the weak seal portion 18 of the medicine bag 10 is not opened. Is to prevent access. The medicine discharge prevention device 28 is formed of a plastic molded product such as polyethylene, and has sufficient hardness and / or thickness to prevent puncture by the puncture needle. The medicine discharge prevention device 28 includes a first half portion 28A (FIG. 1) and a second portion 28B (FIG. 2) each having a shape in which the cylindrical body is halved. The first part and the second part 28A, 28B are arranged so as to sandwich the medicine bag 10 from above and below, and in this embodiment, have the same shape, and the first part and the second part 28A, From 28B, a rectangular plate-shaped first flap 30 and second flap 32 respectively extend integrally. The first and second flaps 30 and 32 constitute the engaging member of the present invention. FIG. 3 shows the combined state of the upper and lower halved portions 28A and 28B in cross section, and a cavity 34 for accommodating the discharge port 12 is formed between the halved portions 28A and 28B. As shown in FIGS. 1 and 2, the cavity 34 has a relatively large margin with respect to the outer diameter of the discharge port 12 on the drug bag 10 side (the upper end side in FIGS. 1 and 2). The lower end side in FIGS. 1 and 2 is substantially complementary to the flange portion 12-2 and the cap 12-3. As shown in FIGS. 1 and 2, the halved portions 28A and 28B are provided with some enlarged diameter portions 28A-1 and 28B-1 on the lower end side. As shown in FIG. 1 and FIG. 3, a window portion 29 is formed, and a flange portion 12-2 of the discharge port 12 extends into the window portion 29. Therefore, by combining the half portions 28A and 28B so that the medicine bag 10 is sandwiched from above and below, the medicine discharge prevention tool 28 can be mounted on the discharge port 12 substantially without backlash. When the halved portions 28A and 28B are combined, the end surfaces 28A-2 and 28B-2 constitute one disc-shaped puncture prevention surface. Therefore, as shown in FIG. 2, even if an attempt is made to puncture the rubber inner lid 23 of the discharge port 24 with the puncture needle 24 of the infusion set, the puncture is performed by the puncture prevention surface (28A-2, 28B-2) of the drug discharge prevention device 28. The needle 24 is blocked and the puncture needle 24 cannot be inserted. An end portion of a tamper seal provided on the upper surface of the rubber plug 28 in the discharge port 12 can be extended from the window portion 29.

  As shown in FIG. 3, the upper and lower halved bodies 28A, 28B of the medicine discharge prevention tool 28 are brought into contact with the diameter edge portions 36 on the end faces 28A-2, 28B-2. Therefore, the first flap 30 and the second flap 32 can rotate around the diameter edge 36 between the closed state of FIG. 3 and the open state of FIG.

  In this embodiment, as will be described below, the upper and lower halved bodies 28A, 28B can be of the same shape due to the 180-degree symmetrical arrangement of the male and female engaging portions, and can be formed by a single mold, Reduction of molding cost can be realized. Next, the structure of the male and female engaging portions will be described. FIG. 5 (a) shows the separated state of the upper and lower halved main bodies 28A and 28B, and the halved main bodies 28A and 28B are in symmetrical positions on their diameter surfaces. A male engaging portion 38 and a female engaging portion 40 are provided. The male engaging portion 38 extends in an orthogonal direction from the halved surfaces of the halved main bodies 28A and 28B, and the male engaging portion 38 includes an engaging protrusion 38A that slightly protrudes in the axial direction at the lower end as shown in FIG. . The female engaging part 40 forms a rectangular cavity 40-1 for accommodating the male engaging part 38, and a wall surface 40A perpendicular to the axis of the medicine discharge prevention tool in this cavity 40-1 is as shown in FIG. An engaging piece 40-2 is formed so as to protrude, and this engaging piece 40-2 initially protrudes perpendicularly from the wall surface 40A, but the free end 40-2 'is bent somewhat downward (to the rear side). Forming an inclined surface). When the upper and lower halved main bodies 28A and 28B are combined, the halved main bodies 28A and 28B are arranged so as to sandwich the drug bag from above and below, and face each other via the discharge port 12 (arrow a in FIG. 6 (a)). Is moved relative to Due to the 180 degree arrangement of the male engaging portion 38 and the female engaging portion 40 in the halved main bodies 28A, 28B, the male engaging portion 38 and the female halves between the upper and lower halved main bodies 28A, 28B as shown in FIG. The engaging part 40 is opposed. Therefore, the male engaging portion 38 is inserted into the opposing female engaging portion 40, and the engaging protrusion 38A of the male engaging portion 38 contacts the engaging piece 40-2 of the female engaging portion 40 during the insertion process. Since the free end 40-2 'of the engagement piece 40-2 is inclined slightly downward, the male engagement portion 38 is coupled with the engagement piece 40 in combination with the elastic deformation of the male engagement portion 38. After overriding -2, the bending is restored by elasticity, and the state shown in FIG. 6 (b) is obtained in which the engagement protrusion 38A engages with the engagement piece 40-2 on the back surface side. Therefore, as shown in FIG. 5B, the first half portion 28A and the second half portion 28B are held together by a predetermined elastic force by the male and female engaging portions 38, 40.

  As shown in FIGS. 1 and 2, the upper and lower flaps 30 and 32 are substantially rectangular when viewed from above, but as shown in FIG. Then, the upper and lower flaps 30 and 32 are not completely in contact with the chemical solution bag 10. However, the flaps 30 and 32 are flat at both side end portions 30-1 and 32-1 and front end portions 30-2 and 32-2, and engage with the chemical solution bag 10 from above and below, and the chemical solution bag 10 is shown in FIG. Thus, the liquid bag 10 can be clamped and held substantially flat at the engagement site. Further, the flaps 30 and 32 are connected to the flat tip portions 30-2 and 32-2 shown in FIGS. 3 and 8 from the curved portion, and the flat tips 30-2 and 32-2 have a width. Both ends 30-2 'and 32-2' in the direction are flat on the inner surface as shown in FIG. 8 and are in contact with the opposite surface of the drug solution bag 10, but the inner surfaces of the intermediate portion in the width direction are indicated by 30A and 30B. Thus, the surface is substantially non-contact (or in a slight contact state) with the opposing surface of the drug solution bag 10. In FIG. 1, the boundary line between the liquid bag contact part and the non-contact part in the upper and lower flaps 30 and 32 is indicated by B1 for both side end parts 30-1 and 32-1, and for the front end parts 30-2 and 32-2. Is indicated by B2. As shown in FIG. 1, these boundary lines B1 and B2 are located outside the diameter of the discharge port 12 in the plane of the medicine bag, and the axial extension portion of the discharge port 12, that is, a local portion in the width direction, for example, the upper and lower portions The flaps 30 and 32 are not in contact with the opposite surface of the drug bag 10. In other words, the drug solution bag 10 is not restrained (free) with respect to the upper and lower flaps 30 and 32 at the axially extended portion of the discharge port 12.

  FIG. 3 shows a state in which the medicine discharge preventing device 28 is attached to the medicine bag 10 in a cross section along the axis, and the medicine bag 10 is shipped in this state. The weak seal portion 18 is not opened, the respective chemical solutions are individually stored in the compartments 20 and 22, and the drug bag 10 is expanded by the amount of the chemical solution stored in the compartments 20 and 22. The discharge port 12 provided in the strong seal portion 14 of the medicine bag 10 so as to open into the compartment 22 is covered with a medicine discharge prevention tool 28. That is, the first flap 30 is applied to one side of the drug bag 10 (see FIG. 1), and the second flap 32 is applied to the opposite side of the drug bag 10 between the first flap 30 and the second flap. 32, the medicine bag 10 is sandwiched between the upper and lower flaps 30 and 32, as shown in FIGS. 7 and 8, and flat portions 30-1, 32-1 on both sides of the curved portion and curved portions. The flat inner portions 30-2 'and 32-2' of the continuous flat tip portions 30-2 and 32-2 are brought into contact with each other through the drug solution bag, and the drug bag 10 is substantially at both side portions in the axis of the discharge port 12. Flatly crushed.

  According to the present invention, the upper and lower flaps 30, 32 are curved except for the flat portions 30-1, 32-1 on both sides, and the intermediate portions in the width direction of the tip flat portions 30-2, 32-2 are concave surfaces 30A, 32B (see FIG. The presence of the free space portion due to 7) can be used for stretching the wrinkles generated on the synthetic resin film constituting the chemical solution bag when the chemical discharge preventing device 28 is attached to the chemical solution bag 10. This will be explained in the conventional comparison in the cited document 1. FIG. 9A schematically shows the base portion of the drug bag 110 with respect to the discharge port 112 in the prior art. The drug bag 110 is crushed by the flaps 130 and 132 at the base portion. The flaps 130 and 132 have a flat bottom surface in the entire width direction (in the direction orthogonal to the paper surface in FIG. 9). Therefore, the flaps 130 and 132 are brought into contact with the opposing surface of the synthetic resin film constituting the drug solution bag 110 in substantially the entire width. It is done. The synthetic resin film constituting the drug bag 110 is rounded in accordance with the shape of the discharge port at the upper and lower diameter portions of the discharge port 112, but is crushed between the flat flaps 130 and 132 immediately adjacent to the discharge port 112. At the base portion 110 ′ with respect to the discharge port 112, the shape suddenly changes from a round shape to a flat shape, and wrinkles are likely to occur. The upper and lower flaps 130 and 132 are in contact with the opposite surface of the drug bag 110 in the entire width, and hold the drug bag under elastic force from above and below. Therefore, the bag generated on the surface of the synthetic resin film at the base 110 'when the drug discharge prevention device is mounted is fixed, and does not extend even when the drug solution bag 110 is pulled. There was a risk of pinholes and other defects during handling.

  FIG. 9 (b) schematically shows the base portion of the drug bag 10 with respect to the discharge port 12 according to the present invention in comparison with FIG. 9 (a), and the flaps 30 and 32 have bottom surfaces 30A and 30B with concave surfaces (FIG. 9). 7). Therefore, the axial extension portion of the discharge port 12 is not in contact (free) with the chemical solution bag. For this reason, even when wrinkles occur at the base portion 10 'of the chemical solution bag 10 with respect to the discharge port 12 when the drug discharge preventing device is attached to the chemical solution bag 10, the chemical solution bag 10 and the discharge port 12 are relatively moved in the direction of the arrow c. By making the relative displacement, the synthetic resin film constituting the drug bag 10 is strained, and even if wrinkles are generated at the base portion 10 ′, the synthetic resin film can be extended to be free of wrinkles. Therefore, there is no concern that an excessive force is applied to the heel portion during transportation and pinholes are generated from the heel portion.

  When the medicine discharge preventing device 28 is mounted, the discharge port 12 is accommodated in the cavity 34 (FIG. 3) formed between the first and second halved portions 28A and 28B, and the plastic medicine is discharged. Since the puncture needle 24 is blocked by the blocking tool 28, the rubber inner lid 23 of the discharge port 24 cannot be punctured. Then, since the male and female engaging members 38, 40 facing each other between the first and second flaps 30, 32 are engaged, the first flap 30 and the second flap 32 are rotated around the contact portion 36. Even if it tries to make it, the elasticity of the male and female engaging members 38 and 40 resists it, and the medicine discharge prevention tool cannot be easily opened.

  In order to open the drug bag 10, the drug bag 10 is placed flat on a desk or the like as shown in FIG. 3, and the drug bag 10 is pressurized as shown by an arrow b from the top with a palm (in FIG. 3, a compartment). The medicine bag 10 is pressurized on the 20 side, but the compartment 22 side or both sides may be pressurized). The liquid pressure is applied to the weak seal portion 18 by pressurization of the medicine bag 10, and the weak seal portion 18 is instantaneously broken and opened (or peeled) by a predetermined pressure. The internal pressure of the drug bag 10 is increased by the pressurization, and this increased pressure is released at once by opening the weak seal portion 18, so that a shocking flow of the drug solution is induced in the drug bag 10. In FIG. 4, the flow of the shocking chemical liquid that is induced in the drug bag 10 is schematically indicated by an arrow F. The rapid flow F of the chemical solution induced in the drug bag 10 when the weak seal portion 18 is opened causes the first flap 30 and the second flap 32 of the drug solution bag 10 and both end portions 30-1, 32- in the curved shape portion. 1 and the tip flat portions 30-2 and 32-2 are in contact with both end portions 30-2 ′ and 32-2 ′, so that the drug bag 10 is expanded, and the opposite surface of the expanded drug bag 10 is The first flap 30 and the second flap 32 which are in contact with each other are rotated around the contact portion 36 as shown in FIG. 4 against the elastic restraining force due to the engagement of the male and female engaging members 38 and 40. The male and female engaging members 38, 40 are changed from the engaged state of FIG. 6 (b) to the disengaged state of (a), and the medicine discharge prevention tool is detached and removed from the discharge port 12. Therefore, the discharge port 12 is exposed, and the drip operation can be started by inserting the puncture needle of the infusion set into the rubber plug 23.

FIG. 1 is a plan view (viewed in the direction of arrow I in FIG. 3) of a medicine bag provided with the medicine discharge preventing device of the present invention. FIG. 2 is an arrow view taken along line II-II in FIG. 3 and shows the lower half of the medicine discharge prevention tool. FIG. 3 is a longitudinal cross-sectional view (a cross-sectional view taken along the line III-III in FIG. 1) of a drug bag provided with the drug discharge preventing device of the present invention. FIG. 4 is a partial cross-sectional view showing a released state of the medicine discharge prevention device of FIG. 3 when the medicine bag is opened. FIG. 5 shows an elastic restraining means for restraining the first and second flaps together under elasticity, and is a cross-sectional view taken along the line V-V in FIG. 1. , (B) show the engaged state. 6 is a detailed configuration diagram of the elastic restraining means, and is a cross-sectional view taken along line VI-VI in FIG. 5, where (A) shows a separated state and (B) shows an engaged state. It is. FIG. 7 is a view (a cross-sectional view taken along the line VII-VII in FIG. 1) showing a contact state of both ends of the curved portion of the upper and lower flaps with respect to the chemical solution bag. FIG. 8 is a diagram (a cross-sectional view taken along the line VIII-VIII in FIG. 1) showing a contact state of the tip flat portions of the upper and lower flaps with respect to the chemical solution bag. FIG. 9 is an enlarged view of the base portion of the chemical solution bag with respect to the discharge port, and is a diagram schematically showing the prior art (A) and the present invention (B) in comparison.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Drug bag 10 '... The root part 12 of the medicine bag with respect to a discharge port ... Discharge port 18 ... Weak seal part
20, 22 ... Compartment 23 ... Rubber inner lid 28 ... Drug discharge prevention device
28A, 28B… Upper and lower halves of the drug discharge prevention device
30, 32… Upper and lower flaps
30A, 32A ... concave bottom surface 38 in upper and lower flaps ... restraining member 40 ... engagement groove

Claims (5)

  A drug bag formed of a flexible membrane material, the inside of which is partitioned by a weak seal into a plurality of compartments that individually contain the medicines, and attached to the outer periphery of the medicine bag, to one of the plurality of compartments A discharge port that opens, and a drug discharge blocking device that is attached to the outside of the drug bag and blocks discharge of the drug from the discharge port when the weak seal is not opened, the drug discharge blocking device being opposed to each other across the discharge port A pair of engaging members that cooperate with the swelling deformation of the drug solution bag when the drug bag is opened, and the engagement members are combined and restrained in a normal state to prevent access to the discharge port. A restraining member which is released from a restrained state so that the medicine discharge preventing device can be detached from the drug solution bag when cooperating with the bulging deformation of the bag, and the opposing surfaces of the pair of engaging members are substantially extended portions of the discharge port Drug bag real Multiple chambers in the shape of free to.   A drug bag formed of a flexible membrane material, the inside of which is partitioned by a weak seal into a plurality of compartments that individually contain the medicines, and attached to the outer periphery of the medicine bag, to one of the plurality of compartments A discharge port that opens, and a drug discharge blocking device that is attached to the outside of the drug bag and blocks discharge of the drug from the discharge port when the weak seal is not opened, the drug discharge blocking device being opposed to each other across the discharge port A pair of engaging members that cooperate with the swelling deformation of the drug solution bag when the drug bag is opened, and the engagement members are combined and restrained in a normal state to prevent access to the discharge port. A restraining member that is released from a restrained state so that the medicine discharge preventing device can be detached from the chemical solution bag when cooperating with the swelling deformation of the bag, and the opposing surfaces of the pair of engaging members are locally in the width direction. Substantially free Multiple chambers in the shape of a.   The multi-chamber container according to claim 1 or 2, wherein at least one of the opposing surfaces of the pair of engaging members is formed in a concave shape.   3. The multi-chamber container according to claim 1, wherein the restraining member restrains the pair of engaging members by an elastic force.   The inside of the medicine bag formed of a flexible membrane material is divided into a plurality of compartments by weak sealing, the medicine is accommodated in each compartment, and the medicine bag is provided with a plurality of compartments on the outer periphery. A discharge outlet is mounted so as to open to one side, and a medicine discharge prevention tool comprising a pair of engaging members and a restraining member that combines and restrains the engaging members is sandwiched between the pair of engaging members. Attach the medicine bag so that the restraint member is released by cooperating with the swelling deformation of the medicine bag when the medicine bag is opened and the medicine bag is free at the substantial extension part of the discharge port. A method of resolving wrinkles in the flexible membrane material by causing the flexible membrane material to be strained through the non-contact portion by relatively displacing the drug bag and the drug discharge prevention device later.

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