Syringe-type dispensing container

Abstract

To provide a syringe-type dispensing container that can suck up and fill liquid from vials and other containers filled with medicinal liquid like a regular syringe and can be stored with a plunger pressed into the syringe, allowing for gradual dispensing.SOLUTION: In a syringe type dispensing container 1, a first ascending operation, a second ascending operation, and a third ascending operation move a lower end surface of an operating portion 3a2 upwardly away from a third stopper surface 9, and a first descending operation moves a plunger body 3a downward relative to a locking member 3b until the lower end surface of the operating portion 3a2 abuts against the third stopper surface 9, and a release operation allows a locking piece 3b2 to swing to an inner position due to restoring deformation, and a second descending operation descends the locking member 3b together with the plunger body 3a.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a syringe-type dispensing container. [Background technology]

[0002] A prefill-type syringe-type dispensing container capable of stepwise dispensing is known (see, for example, Patent Document 1). In this container, the plunger has a movable part that is engaged with the syringe to stop the first-stage dispensing and is pushed into the syringe by elastic deformation to dispense the second stage. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-249076 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned syringe-type dispensing container, the syringe and the plunger must be stored separately until the content liquid is filled, which causes problems such as a decrease in transportation efficiency, etc. Also, if the container is stored with the plunger pushed in, the moving parts may become loose and may not function reliably.

[0005] Therefore, an object of the present invention is to provide a syringe-type dispensing container that can suck up and fill the contents of a container containing a medicinal liquid, such as a vial, like a general syringe, and can be stored with the plunger pressed into the syringe for step-by-step dispensing. [Means for solving the problem]

[0006] One aspect of the present invention is as follows.

[0007] [1] A syringe and a plunger are included. The syringe has an outer cylinder, a first stopper surface, a sliding surface, and a locking surface, The plunger has a plunger body and a locking member, The plunger body has a head, an operating portion, and a shaft portion having a storage recess and connecting the head and the operating portion, The locking member has a locking member body and a locking piece having an engagement portion, The locking member body has a second stopper surface located below the locking piece and a third stopper surface located above the locking piece, the locking piece is connected to the locking member body via a hinge portion so as to be swingable between an inner position where the engagement portion enters the storage recess and an outer position where the engagement portion exits from the storage recess to the outside in the radial direction of the syringe, a first lifting operation for lifting the plunger body from a lower limit position where a lower end of the head of the plunger body is at a lower end position in the outer cylinder to a first lifting position where the locking member body abuts against the first stopper surface, the locking piece is pressed against the engagement portion from the lower surface of the storage recess to slide upward against the sliding surface while preventing the locking piece from swinging by contacting the sliding surface, thereby moving the locking piece from the inside to the outside of the syringe, By a second lifting operation for further lifting the plunger body from the first lifted position to a second lifted position, the plunger body is lifted relative to the locking member, and the lower surface of the storage recess presses the engagement portion, causing the locking piece to swing to the outer position by elastic deformation and engage with the locking surface, and the lower end surface of the operation portion is separated upward from the third stopper surface, A third lifting operation is performed to lift the plunger body from the second lifted position to an upper limit position where the upper end surface of the head abuts against the second stopper surface, so that the lower end surface of the operating portion is further moved upward away from the third stopper surface, By a first lowering operation for lowering the plunger body from the upper limit position to a first lowered position, the plunger body is lowered relative to the locking member until a lower end surface of the operating portion abuts against the third stopper surface, A release operation for releasing the engagement of the locking piece with the locking surface following the first lowering operation allows the locking piece to swing to the inner position by restoring deformation, A syringe-type dispensing container in which, following the release operation, a second lowering operation is performed to further lower the plunger body from the first lowered position to the lowest position, so that the lower end surface of the operating portion presses against the third stopper surface, thereby causing the locking member to descend together with the plunger body.

[0008] [2] The syringe-type dispensing container according to [1], wherein the release operation is an operation of pushing the locking piece radially inward of the syringe.

[0009] [3] The release operation is an operation of rotating the plunger body by a predetermined angle to one side in a circumferential direction of the syringe, the plunger body has a rotation restricting portion that restricts relative rotation of the locking member with respect to the plunger body, The syringe-type dispensing container described in [1], wherein the release operation causes the locking member to rotate together with the plunger body via the rotation regulating portion, thereby moving the locking piece from the locking surface to a guide surface that can guide the locking piece toward the inner position.

[0010] [4] the syringe having an abutment surface; The syringe-type dispensing container according to [3], wherein the release operation allows the locking member to rotate together with the plunger body via the rotation regulating portion until the locking member abuts against the abutment surface. Effect of the Invention

[0011] According to the present invention, it is possible to provide a syringe-type dispensing container that can suck up and fill the contents of a container containing a medicinal liquid, such as a vial, in the same way as a general syringe, and that can be stored with the plunger pressed into the syringe, allowing for step-by-step dispensing. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a cross-sectional view showing a storage state of the syringe-type dispensing container according to the first embodiment of the present invention. [Diagram 2] 4 is a cross-sectional view showing a state of the syringe-type dispensing container shown in FIG. 1 when a first lifting operation is completed and when a release operation is completed. [Diagram 3] 1. FIG. 4 is a cross-sectional view showing a state when a third lifting operation of the syringe-type dispensing container shown in FIG. [Figure 4] 2 is a cross-sectional view showing a state when a first lowering operation of the syringe-type dispensing container shown in FIG. 1 is completed. FIG. [Diagram 5] FIG. 11 is a cross-sectional view showing a storage state of a syringe-type dispensing container according to a second embodiment of the present invention. [Figure 6] 6 is a cross-sectional view taken along line AA in FIG. 5. [Figure 7] 6 is a cross-sectional view showing a state when a first lifting operation of the syringe-type dispensing container shown in FIG. 5 is completed. [Figure 8] 1. FIG. 4 is a cross-sectional view showing a state when a third lifting operation of the syringe-type dispensing container shown in FIG. [Figure 9] 2 is a cross-sectional view showing a state when a release operation of the syringe-type dispensing container shown in FIG. 1 is completed. [Figure 10] 10 is a cross-sectional view of the syringe-type dispensing container shown in FIG. 9, seen from a position shifted by 90 degrees. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0014] As shown in FIGS. 1 to 4, in the first embodiment of the present invention, a syringe-type dispensing container 1 has a syringe 2 and a plunger 3. The syringe 2 has an outer cylinder 11, a first stopper surface 4, a sliding surface 5 and a locking surface 6. The plunger 3 has a plunger body 3a and a locking member 3b. The plunger body 3a has a head 3a1, an operating portion 3a2 and a shaft portion 3a3 having a storage recess 7 and connecting the head 3a1 and the operating portion 3a2. The locking member 3b has a locking member body 3b1 and a locking piece 3b2 having an engagement portion 10. The locking member body 3b1 is arranged to be in a position closer to the locking piece 3b2 than the locking piece 3b2. The locking piece 3b2 has a second stopper surface 8 located below and a third stopper surface 9 located above the locking piece 3b2. The locking piece 3b2 is integrally connected to the locking member main body 3b1 via a hinge portion 3b3 so as to be swingable between an inner position (position shown in FIG. 2) where the engagement portion 10 enters the storage recess 7 and an outer position (position shown in FIG. 4) where the engagement portion 10 projects from the storage recess 7 to the radially outer side of the syringe 2. The locking piece 3b2 is movable from a lower limit position (position shown in FIG. 1) where the lower end of the head 3a1 of the plunger main body 3a is at the lower end position within the outer cylinder 11 to a first raised position where the locking member main body 3b1 abuts against the first stopper surface 4. By a first raising operation of raising the plunger body 3a to the first raised position, the locking piece 3b2 is prevented from swinging by contact with the sliding surface 5, and the locking piece 3b2 is slid upward against the sliding surface 5 by pressing the engagement portion 10 from the lower surface of the storage recess 7, so that the locking piece 3b2 is moved from the inside to the outside of the syringe 2 (see FIG. 2). By a second raising operation of raising the plunger body 3a further from the first raised position to the second raised position, the plunger body 3a is raised against the locking member 3b, and the lower surface of the storage recess 7 presses the engagement portion 10, so that the locking piece 3b2 is locked. As a result of piece 3b2 swinging to the outer position due to elastic deformation, locking piece 3b2 is tilted downward and radially outward with hinge portion 3b3 as a fulcrum, and the lower end portion of locking piece 3b2 fits into locking surface 6 provided on the upper end surface of syringe 2 and the lower end surface of operation portion 3a2 moves upward from third stopper surface 9. A third lifting operation is performed to further lift plunger body 3a from the second lifted position to an upper limit position (position shown in FIG. 3 ) where the upper end surface of head 3a1 abuts against second stopper surface 8, so that the lower end surface of operation portion 3a2 moves further upward from third stopper surface 9,A first lowering operation, which lowers the plunger body 3a from the upper limit position to the first lowering position (the same position as the first raised position except that the locking piece 3b2 is engaged with the locking surface 6), causes the plunger body 3a to lower relative to the locking member 3b until the lower end surface of the operating portion 3a2 abuts the third stopper surface 9 (see Figure 4), and a release operation, which is performed following the first lowering operation and releases the engagement of the locking piece 3b2 with the locking surface 6, allows the locking piece 3b2 to swing due to restoring deformation to the inner position (see Figure 2), and a second lowering operation, which is performed following the release operation and further lowers the plunger body 3a from the first lowering position to the lower limit position, causes the lower end surface of the operating portion 3a2 to press against the third stopper surface 9, causing the locking member 3b to lower together with the plunger body 3a. In this embodiment, the up-down direction is a direction parallel to the central axis O of the syringe 2, the down direction is a direction parallel to the central axis O from the operating part 3a2 to the head 3a1, the up direction is a direction parallel to the central axis O from the head 3a1 to the operating part 3a2, the radial direction is a direction perpendicular to the central axis O, and the circumferential direction is a direction going around the central axis O.

[0015] According to the above configuration, the plunger body 3a can be raised from the lower limit position to the upper limit position simply by pulling the plunger body 3a, including the first raising operation, the second raising operation, and the third raising operation, so that a fixed amount of the liquid content can be easily sucked up and filled. After that, the plunger body 3a is pushed in by the first lowering operation, so that the first fixed amount can be discharged, and the plunger body 3a is further pushed in by the second lowering operation after the release operation, so that the second fixed amount can be discharged. According to the above configuration, the plunger body 3a can be stored in a state where it is pushed in to the lower limit position without elastically deforming the locking piece 3b2. Therefore, a syringe-type dispensing container 1 capable of stepwise dispensing can be realized, which can suck up and fill the liquid content from a container in which a liquid medicine is sealed, such as a vial, like a general syringe, and can be stored in a state where the plunger 3 is pushed into the syringe 2.

[0016] The upper end of the locking piece 3b2 is connected to the locking member body 3b1 via the hinge portion 3b3, and the lower end of the locking piece 3b2 can be fitted into the locking surface 6. According to the above configuration, the locking member 3b can be configured with a simple structure.

[0017] The locking member main body 3b1 is tubular and has the shaft portion 3a3 passed therethrough. The lower end surface of the locking member main body 3b1 has a second stopper surface 8, and the upper end surface of the locking member main body 3b1 has a third stopper surface 9.

[0018] The syringe 2 has a main body 2a having a cylindrical outer cylinder 11 centered on a central axis O, and an attachment member 2b attached to the main body 2a, the attachment member 2b having an insertion portion 2b1 inserted from the upper end of the outer cylinder 11 and an extension portion 2b2 extending radially outward from the upper end of the insertion portion 2b1, the lower end surface of the insertion portion 2b1 having a first stopper surface 4, and the upper surface of the extension portion 2b2 having an engagement surface 6. According to the above configuration, the first stopper surface 4 and the engagement surface 6 can be provided on the syringe 2 by the attachment member 2b.

[0019] An engagement surface 6 is provided on the upper surface of the radially inner end of the extension 2b2 of the mounting member 2b, and a radially outer portion of the extension 2b2 (a portion radially outward from the outer surface of the outer cylinder 11) forms a finger hook. According to the above configuration, the mounting member 2b can provide the engagement surface 6 and the finger hook on the syringe 2.

[0020] The main body 2a has a syringe body 2a1 having an outer cylinder 11 and a cylindrical tip portion 12 connected to the lower end of the outer cylinder 11, and a nozzle member 2a2 attached to the syringe body 2a1, and the nozzle member 2a2 has a nozzle body 13 attached to the cylindrical tip portion 12 and a nozzle tip 14 disposed inside the nozzle body 13, and the liquid content inside the main body 2a can be discharged in a mist form from the discharge port 13a of the nozzle body 13 through a flow path (not shown) between the nozzle body 13 and the nozzle tip 14. The above configuration enables mist discharge with a simple structure.

[0021] The plunger body 3a has a piston operating member 15 having an operating portion 3a2, a shaft portion 3a3, and a piston stop portion 15a extending downward from the lower end of the shaft portion 3a3, and a piston 16 that is engaged with the piston stop portion 15a and forms the head portion 3a1, and the operating portion 3a2 has a disk-shaped portion 20 that is vertical to the up-down direction, and an operating shaft portion 21 that connects the center of the disk-shaped portion 20 and the upper end of the shaft portion 3a3 and protrudes radially outward beyond the upper end of the shaft portion 3a3. According to the above configuration, the plunger body 3a can be composed of the piston operating member 15 and the piston 16.

[0022] The syringe-type discharge container 1 has a detachable end cap 17 at the lower end of the nozzle body 13. According to the above configuration, by attaching the end cap 17 to the nozzle body 13, the discharge port 13a can be protected during storage.

[0023] The locking member 3b is made of resin. According to the above configuration, the locking member 3b having the locking pieces 3b2 that can swing from the inner position to the outer position by elastic deformation can be configured with a simple structure.

[0024] The main body 2a, the mounting member 2b, the piston operating member 15, the nozzle main body 13 and the nozzle tip 14 are made of resin, and the piston 16 is made of rubber, elastomer or resin. The main body 2a may be made of other materials such as glass.

[0025] In this embodiment, the release operation is an operation of pushing the locking piece 3b2 (see FIG. 4) toward the inside in the radial direction of the syringe 2. According to the above configuration, the release operation can be performed by pushing the locking piece 3b2 toward the inside in the radial direction of the syringe 2.

[0026] The locking member 3b has a pair of locking pieces 3b2 that are provided opposite to each other. According to the above-mentioned configuration, the release operation can be performed by a simple operation of pinching the pair of locking pieces 3b2.

[0027] The locking surface 6 is formed of an annular recess that is open upward and centered on the central axis O. According to the above configuration, the lower end of the locking piece 3b2 fits into the annular recess, so that the locked state can be reliably maintained until a release operation is performed.

[0028] The storage recess 7 is configured as an annular recess that is open radially outward and is centered on the central axis O. According to the above configuration, the storage recess 7 can be configured with a simple structure.

[0029] As in the second embodiment shown in Figures 5 to 10, the release operation is an operation of rotating the plunger body 3a by a predetermined angle θ (see Figure 6) to one side in the circumferential direction of the syringe 2, and the plunger body 3a has a rotation restriction portion 18 (see Figures 9 to 10) that restricts the relative rotation of the locking member 3b with respect to the plunger body 3a, and the locking member 3b rotates together with the plunger body 3a via the rotation restriction portion 18 by the release operation, so that the locking piece 3b2 moves from the locking surface 6 to the guide surface 22 that can guide the locking piece 3b2 toward the inner position (see Figures 9 to 10). According to the above configuration, the release operation can be performed by a simple operation of rotating the plunger body 3a by the angle θ to one side in the circumferential direction of the syringe 2.

[0030] In the second embodiment, the syringe 2 has an abutment surface 19 (see FIG. 6) constituted by a circumferential end face of a notch provided at the bottom of the insertion portion 2b1 inserted into the outer cylinder 11, and by a release operation, the locking member 3b can rotate together with the plunger body 3a via the rotation restricting portion 18 until the convex portion 23 protruding from the outer circumferential surface of the locking member body 3b1 abuts against the abutment surface 19. According to the above configuration, the release operation can be easily performed by simply rotating the locking member 3b in one circumferential direction until it abuts against the abutment surface 19.

[0031] The guide surface 22 is an inclined surface that slopes downward toward the inside in the radial direction, and the radially outer end of the guide surface 22 is located radially outward from the lower end of the locking piece 3b2 located at the outer position. According to the above configuration, the locking piece 3b2 can be easily guided by the guide surface 22.

[0032] In the second embodiment, the syringe-type discharge container 1 has a pair of locking pieces 3b2 that are provided opposite each other, and the locking surfaces 6 and the guide surfaces 22 are alternately provided at 90° intervals in the circumferential direction at the radially inner end of the extension portion 2b2. According to the above configuration, the pair of locking pieces 3b2 can easily achieve stable operation.

[0033] In the second embodiment, the operation portion 3a2 has a plate-shaped portion 20 that is flattened in a top view. According to the above configuration, the plate-shaped portion 20 makes it possible to easily perform the release operation.

[0034] The angle θ is 90°. According to the above configuration, the syringe-type dispensing container 1 can be configured with a simple structure, and the release operation can be easily performed with a small number of rotations.

[0035] The rotation restricting portion 18 has a groove 18a extending upward from the lower end surface of the operating portion 3a2 on the outer circumferential surface of the operating portion 3a2, and the locking member 3b has a protrusion 3b4 that extends upward from the upper end surface (third stopper surface 9) of the cylindrical locking member main body 3b1 and can be inserted into the groove 18a. According to the above configuration, the rotational force of the plunger main body 3a during the release operation is transmitted to the locking member 3b via the groove 18a and the protrusion 3b4 inserted into the groove 18a, so that the locking member 3b can be rotated together with the plunger main body 3a.

[0036] The plunger 3 has a plurality of pairs of grooves 18a and protrusions 3b4 that are provided at equal intervals in the circumferential direction. According to the above configuration, the plurality of pairs of grooves 18a and protrusions 3b4 can easily achieve stable operation.

[0037] 6, the insertion portion 2b1 has a notch 25 extending upward from the lower end of the insertion portion 2b1, a contact surface 19 is formed by a circumferential end face on one circumferential side of the notch 25, and a regulating surface 24 is formed by a circumferential end face on the other circumferential side of the notch 25, and the locking piece 3b2 can be moved onto the locking surface 6 by rotating the locking member 3b until the convex portion 23 moves to the other circumferential side within the notch 25 and abuts against the regulating surface 24, and the locking piece 3b2 can be moved onto the guide surface 22 by rotating the locking member 3b until the convex portion 23 moves to the one circumferential side within the notch 25 and abuts against the abutting surface 19. With the above configuration, good operability can be realized.

[0038] The syringe-type discharge container 1 has a pair of cutout portions 25 provided opposite to each other, and a pair of protrusions 23 corresponding to the pair of cutout portions 25. According to the above configuration, the pair of cutout portions 25 and the pair of protrusions 23 can easily realize stable operation.

[0039] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and the above-described embodiment can be modified in various ways without departing from the gist of the present invention. [Explanation of symbols]

[0040] 1. Syringe-type dispensing container 2 Syringes 2a Main body 2a1 Syringe body 2a2 Nozzle member 2b Mounting material 2b1 Insertion part 2b2 extension 3 Plunger 3a Plunger body 3a1 head 3a2 Operation section 3a3 shaft part 3b Locking member 3b1 Locking member body 3b2 Locking piece 3b3 Hinge part 3b4 Projection 4 First stopper surface 5 Sliding surface 6 Locking surface 7 Storage recess 8 Second stopper surface 9 Third stopper surface 10 Engagement part 11 Outer cylinder 12 Nose 13 Nozzle body 13a Discharge port 14 Nozzle Tip 15 Piston operating member 15a Piston stopper 16 Piston 17 End Cap 18 Rotation restriction part 18a Groove 19 Contact surface 20 Disk-shaped part 21 Operation shaft section 22 Guide Surface 23 Convex 24 Regulatory aspects 25 Cutout O center axis θ angle

Claims

1. A syringe and a plunger are included. The syringe has an outer cylinder, a first stopper surface, a sliding surface, and a locking surface, The plunger has a plunger body and a locking member, The plunger body has a head, an operating portion, and a shaft portion having a storage recess and connecting the head and the operating portion, The locking member has a locking member body and a locking piece having an engagement portion, The locking member body has a second stopper surface located below the locking piece and a third stopper surface located above the locking piece, the locking piece is connected to the locking member body via a hinge portion so as to be swingable between an inner position where the engagement portion enters the storage recess and an outer position where the engagement portion exits from the storage recess to the outside in the radial direction of the syringe, a first lifting operation for lifting the plunger body from a lower limit position where a lower end of the head of the plunger body is at a lower end position in the outer cylinder to a first lifting position where the locking member body abuts against the first stopper surface, the locking piece is pressed against the engagement portion from the lower surface of the storage recess to slide upward against the sliding surface while preventing the locking piece from swinging by contacting the sliding surface, thereby moving the locking piece from the inside to the outside of the syringe, By a second lifting operation for further lifting the plunger body from the first lifted position to a second lifted position, the plunger body is lifted relative to the locking member, and the lower surface of the storage recess presses the engaging portion, so that the locking piece is elastically deformed and swung to the outer position to engage with the locking surface, and the lower end surface of the operating portion is separated upward from the third stopper surface, A third lifting operation is performed to lift the plunger body from the second lifted position to an upper limit position where the upper end surface of the head abuts against the second stopper surface, so that the lower end surface of the operating portion is further moved upward away from the third stopper surface, By a first lowering operation for lowering the plunger body from the upper limit position to a first lowered position, the plunger body is lowered relative to the locking member until a lower end surface of the operating portion abuts against the third stopper surface, A release operation for releasing the engagement of the locking piece with the locking surface following the first lowering operation allows the locking piece to swing to the inner position by restoring deformation, A syringe-type dispensing container in which, following the release operation, a second lowering operation is performed to further lower the plunger body from the first lowered position to the lowest position, so that the lower end surface of the operating portion presses against the third stopper surface, thereby causing the locking member to descend together with the plunger body.

2. The syringe-type dispensing container according to claim 1 , wherein the release operation is an operation of pushing the locking piece radially inward of the syringe.

3. The release operation is an operation of rotating the plunger body by a predetermined angle to one side in a circumferential direction of the syringe, the plunger body has a rotation restricting portion that restricts relative rotation of the locking member with respect to the plunger body, The syringe-type dispensing container according to claim 1, wherein the release operation causes the locking member to rotate together with the plunger body via the rotation regulating portion, thereby moving the locking piece from the locking surface to a guide surface that can guide the locking piece toward the inner position.

4. the syringe having an abutment surface; The syringe type dispensing container according to claim 3 , wherein the release operation allows the locking member to rotate together with the plunger body via the rotation restricting portion until the locking member abuts against the abutment surface.

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