Tray and chemical solution discharge set for chemical solution discharge device

Abstract

This prevents air from remaining in the chemical solution pathway. [Solution] The chemical solution discharge unit tray 50 is used in a chemical solution discharge device 20 which has an operating member that pushes out the chemical solution from a chemical solution storage section housed inside the housing 21 by a pushing operation, an upstream tube and a downstream tube connected to the chemical solution storage section and extending outside the housing, and a filter 40 provided on the path of at least one of the upstream tube and the downstream tube. The chemical solution discharge device tray 50 includes a storage section 54 which is a mounting section on which the chemical solution discharge device 20 is placed, a base section 51 which is placed on a stand or the like, and a filter holding section 60 which holds the filter 40 so that the downstream side of the filter 40 faces upward in the direction of gravity when placed on a stand or the like.

Description

Technical Field

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[0001] The present invention relates to a tray for a chemical solution discharging device and a chemical solution discharging set.

Background Art

[0002] Conventionally, a chemical solution administration device for continuously administering a chemical solution such as an analgesic or an anesthetic has been known. Also, in a chemical solution administration device, a chemical solution discharging device for rapidly discharging a chemical solution by self-operation by a patient or the like has been known.

[0003] Patent Document 1 discloses a chemical solution injection controller (chemical solution discharging device) that pushes out a chemical solution from a sub-reservoir (chemical solution storage unit) housed inside a housing by pushing an operation member attached to one end side of the housing, and an upstream line (upstream tube) and a downstream line (downstream tube) are connected to the opposite side of the operation member of the sub-reservoir.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in the middle of each tube connected to the chemical solution storage unit, a filter with an air vent may be attached. The filter with an air vent is required to maintain the vertical orientation during use in a specific orientation for discharging air inside the filter. For this reason, medical staff who are not familiar with the product may perform priming without considering the orientation of the filter, and air may remain in the chemical solution path composed of the filter, the tube, the chemical solution storage unit, etc.

[0006] Furthermore, if the chemical discharge device is primed in the wrong orientation in the vertical direction, air may remain in the chemical storage section. Also, during transport of the chemical discharge device, vibrations may cause the operating member to be pushed in, resulting in the operating member being in a state different from that required at the start of priming. In such cases, priming may be performed with the chemical storage section deformed by the operating member, potentially leading to air remaining in the system.

[0007] The object of the present invention is to provide a chemical solution discharge tray and a chemical solution discharge set that can solve at least one of the above problems. [Means for solving the problem]

[0008] A tray for a chemical solution discharge device according to one aspect of the present invention is a tray for a chemical solution discharge device used in a chemical solution discharge device having an operating member that pushes out a chemical solution from a chemical solution storage section housed inside a housing by a pushing operation, an upstream tube and a downstream tube connected to the chemical solution storage section and extending outside the housing, and a filter provided on the path of at least one of the upstream tube and the downstream tube, wherein the tray for the chemical solution discharge device comprises a mounting section on which the chemical solution discharge device is placed, a base section on which the tray is placed on a stand or the like, and a filter holding section that holds the filter such that the downstream side of the filter faces upward in the direction of gravity when the tray is placed on a stand or the like.

[0009] With the above configuration, since a filter holding section is formed in the tray, the risk of healthcare professionals forgetting to consider the orientation of the filter is reduced, and the situation in which the filter does not function properly during priming and air remains in the drug solution path can be suppressed. The filter holding section may directly hold the filter body, or it may hold the tube near the filter body.

[0010] In a tray for a chemical solution discharge device according to one aspect of the present invention, the filter holding portion includes a holding groove for accommodating and holding the upstream tube or the downstream tube, and the holding groove may be formed to extend vertically from the upper surface of the tray and configured to hold a filter tube provided on the upstream side of the filter.

[0011] With the above configuration, compared to the case where the majority of the filter in the vertical direction is held by the tray, the downstream end of the tube extending upstream from the filter can be positioned above the tray in the vertical direction. Therefore, the vertical height dimension of the tray can be made shorter.

[0012] In one embodiment of the present invention, a tray for a drug solution discharge device is a cylindrical body having an opening at the bottom and an upper surface at the top, and the aforementioned storage portion is a bottomed cylindrical storage portion formed on the upper surface, and the storage portion may be configured to be located inside the cylindrical body.

[0013] According to the above configuration, the overall thickness of the tray can be reduced, making it lighter. In addition, the center of gravity when the chemical dispensing device is installed can be positioned lower, resulting in a structure that is lightweight yet stable when installed.

[0014] A drug solution discharge set according to one aspect of the present invention is a drug solution discharge set comprising a tray for a drug solution discharge device and the drug solution discharge device, wherein the tray for the drug solution discharge device has a fixing portion for which the drug solution discharge device can be detachably fixed, the drug solution storage portion has an inlet portion communicating with the upstream tube and an outlet portion communicating with the downstream tube, the drug solution discharge device and the tray for the drug solution discharge device are arranged axially in the order of the base portion, the drug solution storage portion, and the outlet portion in the assembled state, and the drug solution discharge device and the tray for the drug solution discharge device are packaged in a packaging body in the assembled state.

[0015] With the above configuration, when the base is placed on a desk or the like, the outlet is naturally positioned above the chemical solution container in the direction of gravity. Therefore, priming is performed with the inlet and outlet of the chemical solution container facing upward in the direction of gravity. This reduces the possibility of air remaining in the chemical solution container.

[0016] A drug solution dispensing set according to one aspect of the present invention is a drug solution dispensing set comprising a tray for a drug solution dispensing device and the drug solution dispensing device, wherein the tray for the drug solution dispensing device has a fixing portion for which the drug solution dispensing device can be detachably fixed and a housing portion for housing a push-in portion provided on an operating member that presses the drug solution storage portion, and the tray for the drug solution dispensing device and the drug solution dispensing device are assembled and packaged in a packaging body with the push-in portion housed in the housing portion.

[0017] With the above configuration, since the push-in part is housed in the tray, it is possible to prevent the push-in part from being pushed in by vibration during transport of the drug dispensing device, and priming from being performed in that position without the push-in part being returned to its original position. Therefore, the possibility of air remaining in the drug storage part can be reduced.

[0018] A drug solution discharge set according to one aspect of the present invention comprises an operating member that pushes out drug solution from a drug solution storage section housed inside a housing by a pushing operation, a drug solution discharge device having an upstream tube and a downstream tube connected to the drug solution storage section and extending outside the housing, and a tray for the drug solution discharge device having a fixing part that can detachably fix the drug solution discharge device and a base part that can be placed on a stand or the like, the drug solution storage section having an inlet part that communicates with the upstream tube and an outlet part that communicates with the downstream tube, the drug solution discharge device and the tray for the drug solution discharge device are arranged axially in the order of the base part, the drug solution storage section, and the outlet part when assembled, and the drug solution discharge device and the tray for the drug solution discharge device are packaged in a package when assembled.

[0019] According to the above configuration, priming is performed in a state where the outlet of the chemical solution storage unit faces upward in the gravitational direction. Therefore, the possibility of air remaining in the chemical solution storage unit can be reduced.

[0020] A chemical solution discharge set according to an aspect of the present invention includes an operation member that pushes out a chemical solution from a chemical solution storage unit housed inside a housing by a pushing operation, and an upstream tube and a downstream tube connected to the chemical solution storage unit and extending outside the housing. A chemical solution discharge device having a chemical solution discharge device tray having a fixing portion that can be detachably fixed and a pedestal portion placed on a table or the like. The chemical solution discharge device tray has a housing portion that houses a pushing portion provided on the operation member. With the pushing portion housed in the housing portion, the chemical solution discharge device tray and the chemical solution discharge device are assembled and packaged in a package.

[0021] According to the above configuration, since the pushing portion is housed in the tray, it is possible to suppress a situation where the pushing portion is pushed in due to vibration during transportation of the chemical solution discharge device and priming is performed as it is. Therefore, the possibility of air remaining in the chemical solution storage unit can be reduced.

Effects of the Invention

[0022] According to the chemical solution discharge device tray and the chemical solution discharge set according to the present invention, the possibility of air remaining in the chemical solution path during priming can be reduced.

Brief Description of the Drawings

[0023] [Figure 1] It is a diagram showing the disadvantages when using the conventional method when priming the chemical solution discharge device. [Figure 2] It is a perspective view of the chemical solution discharge device shown in FIG. 1. [Figure 3] It is a top view of the chemical solution discharge device shown in FIG. 2. [Figure 4] It is a cross-sectional view taken along line AA of FIG. 3. [Figure 5]This is an enlarged view of the lower half of Figure 4, showing the chemical dispensing device shown in Figure 2 with the operating member pushed in. [Figure 6] This is a perspective view of the tray for the chemical solution dispensing device of the embodiment, seen from diagonally above. [Figure 7] Figure 6 is a perspective view of the chemical solution dispensing tray, seen from diagonally below. [Figure 8] Figure 6 is a top view of the tray for the chemical solution discharge device. [Figure 9] This is a view from the right side of the chemical solution dispensing tray shown in Figure 6. [Figure 10] Figure 8 is a cross-sectional view along line BB. [Figure 11] This figure shows the combination of the chemical solution discharge device and the chemical solution discharge device tray when priming the chemical solution discharge device using the tray for the chemical solution discharge device of the embodiment. [Figure 12] This is a perspective view of the lower part of Figure 11, seen from an oblique angle above. [Figure 13] This is a view from the right side of Figure 11. [Figure 14] Figure 13 is a cross-sectional view along the CC line. [Figure 15] Figure 14 is a cross-sectional view along the DD line. [Figure 16] Figure 14 is a cross-sectional view along the EE line. [Figure 17] Figure 14 is a cross-sectional view along the FF line. [Figure 18] This diagram shows the inside of the packaging body as viewed from above, after the packaging body has been cut horizontally, in the drug dispensing set of the embodiment. [Modes for carrying out the invention]

[0024] Hereinafter, with reference to the drawings, examples of each embodiment of the chemical solution discharge device and chemical solution discharge set according to the present invention will be described in detail. The embodiments described below are merely examples, and the present invention is not limited to these embodiments. Furthermore, it is anticipated from the outset that the components of the multiple embodiments and modified examples described below can be selectively combined.

[0025] Figure 1 shows the disadvantages of using a conventional method when priming the drug solution discharge device 20. The drug solution discharge device 20 is used to constitute a drug solution administration device 1 for continuous administration of drug solution to patients in facilities such as hospitals. The drug solution administration device 1 includes a main reservoir 3 that stores drug solution inside, a drug solution discharge device 20 connected to the main reservoir 3 via an upstream tube 4, and a terminal connector 7 connected to the downstream side of the drug solution discharge device 20 via a downstream tube 5.

[0026] The main reservoir 3 delivers the drug solution stored inside to the downstream side. The terminal connector 7 connects to an indwelling needle or similar device that has been percutaneously inserted into the patient's blood vessel or other location.

[0027] The drug solution dispensing device 20 allows the patient to dispense the drug solution stored in the internal drug solution storage section (described later) to the downstream side through self-operation by the patient when the patient desires rapid administration of the drug solution.

[0028] The chemical solution discharge device 20 will be explained using Figures 2 to 5. The chemical solution discharge device 20 consists of a housing 21 that is roughly cylindrical with a roughly elliptical cross-section and closed at one end, an operating member 23 that protrudes from the other end of the housing 21 and is fitted into the housing 21 so as to be pushable, a chemical solution storage section 22 (Figure 4) housed inside the housing 21, an upstream tube 4 connected to the chemical solution storage section 22 via an inner upstream passage 24 (Figure 4), and a downstream tube 5 connected to the chemical solution storage section 22 via an inner downstream passage 25 (Figure 4). The inner upstream passage 24 and the inner downstream passage 25 are provided inside the housing 21 and are each formed from elastically deformable tubes or the like. In the following explanation, the other end of the housing 21 where the operating member 23 is provided will be referred to as the bottom, and the one end as the top.

[0029] The housing 21 is constructed by connecting two semi-cylindrical housing elements 21a and 21b, each providing approximately half of the circumferential direction, in a cylindrical shape, with the opening at the upper end being closed by a lid portion 26. On the outer surface of a portion of the lower end of the housing 21 in the circumferential direction (the back end in Figures 2, 4, and 5, and the right end in Figure 17), an inclined surface 21c (Figure 17) is provided, which is inclined with respect to the axial direction such that the outer diameter decreases as it goes downwards.

[0030] The operating member 23 is a bottomed cylindrical shape and is mounted in the housing 21 so as to be movable along the axial direction. The portion of the operating member 23 that can protrude outward from the housing 21 and can be pushed in by the user is the push-in portion 23a.

[0031] As shown in Figure 4, a biasing member 28 is provided between the bottom portion at the lower end of the operating member 23 and the plunger 27 connected to the lower end of the liquid medicine storage section 22. The biasing member 28 is, for example, a coil spring. As a result, the operating member 23 is biased by the biasing member 28 in a direction that pushes it out of the housing 21.

[0032] The liquid chemical storage section 22 has a bottomed cylindrical diaphragm 22a on the side where it connects to the plunger 27, and is expandable and contractible in the axial direction. A base section 22b is connected to the open end of the diaphragm 22a, closing this open end.

[0033] The base portion 22b is provided with an inlet portion 22c and an outlet portion 22d that penetrate vertically. The inlet portion 22c communicates with the upstream tube 4 via an inner upstream passage 24. The outlet portion 22d communicates with the downstream tube 5 via an inner downstream passage 25. At this time, the upstream tube 4 is connected to an inlet port P1 provided at the upper end of the inner upstream passage 24. The downstream tube 5 is connected to an outlet port P2 provided at the upper end of the inner downstream passage 25. In this state, the upstream tube 4 and the downstream tube 5 are connected to the chemical storage portion 22 and extend outside the housing 21.

[0034] The inner upstream channel 24 can be closed in the middle by being crushed by a switch 30, which is locked to the housing 21 and pushed inward by the housing 21. The upstream and downstream portions of the inner upstream channel 24, separated by the portion opposite the switch 30, are connected by a first orifice tube (not shown) that is thinner than the inner upstream channel 24. As a result, when the middle of the inner upstream channel 24 is closed by the switch 30, a small amount of chemical solution can be supplied from the upstream end of the inner upstream channel 24 to the chemical solution storage section 22 through the first orifice tube. In addition, the upstream portion of the inner upstream channel 24 and the downstream portion of the inner downstream channel 25 are connected by a second orifice tube (not shown) that is thinner than each channel 24, 25, allowing liquid to flow continuously from the upstream tube 4 to the downstream tube 5 without passing through the chemical solution storage section 22.

[0035] When the switch 30 is pressed in, a spring located inside the housing 21 causes a stopper 31, which is movable in a forward-backward direction perpendicular to the axial direction of the housing (the front-back direction of the paper in Figure 4), to crush and close the inner downstream passage 25. On the other hand, before the switch 30 is pressed in, the portion of the switch 30 located inside the housing 21 is locked to the stopper 31, causing the stopper 31 to move away from the inner downstream passage 25 against the biasing force of the spring. Therefore, before the switch 30 is pressed in, the inner upstream passage 24 and the inner downstream passage 25 are not closed.

[0036] A tube holding portion 32 capable of holding the end connector 7 inside is locked to the outside of the housing 21. A portion of the tube holding portion 32 is inserted into an opening provided in the housing 21 and is further locked to the inside of the switch 30, thereby preventing the switch 30 from being pushed inward into the housing 21 beyond a predetermined distance during priming.

[0037] In the drug solution dispensing device 1, when priming is performed to fill the drug solution path, including the inside of the drug solution storage section 22 of the drug solution discharge device 20, the switch 30 is not pressed in, and the intermediate sections of the inner upstream passage 24 and the inner downstream passage 25 are not crushed but remain open. For example, referring to Figure 1, the upstream tube 4 is released by moving the clamp 8 that closes the upstream tube 4 in the direction of the white arrow. In this state, the drug solution is supplied from the main reservoir 3 to the drug solution storage section 22. When the drug solution storage section 22 is sufficiently supplied with drug solution, the tube holder 32 is pulled out from the housing 21. If the switch 30 is pressed in this state, the inner upstream passage 24 and the inner downstream passage 25 are closed. In this state, when the tube holder 32 is removed from the housing 21, priming is completed.

[0038] When administering medication to a patient, small amounts of the medication are discharged from the main reservoir 3 to the terminal connector 7 through the second orifice tube. On the other hand, when the patient pushes in the operating member 23, the tip of the operating member 23 inside the housing 21 pushes the stopper 31 away from the inner downstream passage 25 against the biasing force of the spring, thereby releasing the closure of the inner downstream passage 25. Also, the pushing operation of the operating member 23 causes the medication storage section 22 to contract axially. As a result, the medication is pushed out of the medication storage section 22 and discharged to the terminal connector 7 through the inner downstream passage 25.

[0039] Furthermore, referring to Figures 11 to 13 described later, filters 40 are provided along the paths of the upstream tube 4 and the downstream tube 5. The filter 40 has a substantially disc-shaped container-like filter body 40a and filter tubes 41 and 42 connected to both ends of the filter body 40a. The filter 40 is provided with an air vent. The filter 40 removes air bubbles and foreign matter in the upstream tube 4 or the downstream tube 5. In order to properly discharge the air inside the filter 40, the downstream side of the filter 40 is required to face upward in the direction of gravity. In the example shown in Figure 1, an arrow indicating the direction is shown on one side of the filter 40, and by making the arrow point upward, the filter tube 42 on the downstream side of the filter 40 is held to be positioned above the filter in the direction of gravity, so that the downstream side of the filter 40 faces upward in the direction of gravity.

[0040] As shown in Figure 1, during priming, the end of the downstream tube 5 on the terminal connector 7 side is held by the tube holding part 32 of the chemical discharge device 20. During priming, in order to prevent air from remaining in the chemical storage section 22, the chemical discharge device 20 is assembled to the chemical discharge device tray so that the upstream tube 4 and the downstream tube 5 face upward in the direction of gravity relative to the chemical storage section 22. In addition, the chemical discharge device 20 is assembled to the chemical discharge device tray to prevent the operating member 23 from being unintentionally pressed during delivery. For example, as shown in Figure 5, if the chemical is filled into the chemical storage section while the operating member 23 is pressed, the diaphragm 22a of the chemical storage section 22 is bent inward into a roughly U-shaped ring between the cylindrical part of the plunger 27 and the outer cylindrical body 33, making it easier for air to remain in the narrow space at the back 22e located at the lower end of the diaphragm 22a.

[0041] However, if a healthcare professional unfamiliar with the drug administration device 1 performs priming without considering the orientation of the filter 40, the orientation of the drug discharge device 20, or the state of the operating member 23, the filter 40 may not function properly, potentially leaving air trapped in the drug pathway consisting of the filter 40, tubes 4 and 5, drug storage section 22, etc.

[0042] In this embodiment, a tray 50 for the chemical solution discharge device is provided to resolve these inconveniences.

[0043] The chemical solution discharge device tray 50 will be described in detail below with reference to Figures 6 to 10. Hereinafter, the chemical solution discharge device tray 50 will be referred to as tray 50. The tray 50 is cylindrical with an open bottom and a closed top, and has a base portion 51 at its lower end that is placed on a base or other member with a flat surface. The top of the tray 50 is provided with a top plate portion 52 that forms the top surface. The top plate portion 52 is provided with a housing portion 54 on which the chemical solution discharge device 20 is placed. The housing portion 54 also has the function of housing the push-in portion 23a provided on the operating member 23 of the chemical solution discharge device 20. The housing portion 54 corresponds to the mounting portion on which the chemical solution discharge device 20 is placed. Furthermore, the tray 50 is provided with a filter holding portion 60 that holds each filter 40 in a state where its posture is maintained.

[0044] Specifically, as shown in Figure 8, the tray 50 has a cylindrical shape with a wall portion 53 that, when viewed from above, has a roughly semi-elliptical shape with both ends of a U-shape joined by a straight section. The wall portion 53 includes a cylindrical portion having a curved wall portion 53a with a semicircular cross-section, two first planar wall portions 53b connected to both ends of the curved wall portion 53a and parallel to each other, and a second planar wall portion 53c connecting the ends of each first planar wall portion 53b opposite to the curved wall portion 53a. The tray 50 is integrally formed, for example, by resin injection molding.

[0045] At the upper end of the wall portion 53 of the tray 50, a top plate portion 52 is provided that closes the upper end of the wall portion 53 and has a flat surface that is aligned horizontally. At the lower end of the wall portion 53, an inclined portion 51a that slopes downward toward the outside is provided continuously in the circumferential direction between the lower ends of the two first flat wall portions 53b and the lower end of the curved wall portion 53a. This inclined portion 51a constitutes the base portion 51. As a result, even though the base portion 51 is lightweight, it becomes easier to stabilize the posture of the tray 50.

[0046] The storage section 54 is a bottomed cylindrical shape with a roughly circular cross-section, formed as a recess in the upper surface of the curved wall section 53a of the top plate section 52 of the tray 50, and extends in the vertical direction. The storage section 54 is located inside the wall section 53 of the tray 50, and multiple protrusions 55 extending in the vertical direction are formed on the inner circumferential surface of the storage section 54, divided into multiple positions in the circumferential direction. Each protrusion 55 has a roughly semicircular cross-section. The multiple protrusions 55 correspond to fixing parts that can detachably fix the liquid dispensing device 20. As a result, when the lower end of the housing 21 is inserted into the storage section 54, the tips of each protrusion 55 are pressed against the outer circumferential surface of the housing 21, making it easier to fit and fix the housing 21.

[0047] The filter holding section 60 includes two holding grooves 61 formed side by side along the vertical direction from the upper surface of the second planar wall section 53c side end of the top plate section 52 to the side of the second planar wall section 53c. Each holding groove 61 has an arc-shaped cross-section, and its lower end is located in the middle of the second planar wall section 53c in the vertical direction. As a result, the longitudinal middle portions of the upstream tube 4 and the downstream tube 5 are fitted into the two holding grooves 61, thereby accommodating and holding each tube 4 and 5. The upper end of each holding groove 61 has a wide section 62 formed, in which the groove width is larger than that of the lower portion. A chamfer 63 with an arc-shaped or straight cross-section is formed at the upper end of the wide section 62. The wide section 62 is configured to hold the filter tube 41 (see Figures 11-13) provided at the inlet of the corresponding filter 40 by fitting into it. The filter tube 41 is a port of the filter 40 that is harder than each tube 4 and 5. Each tube 4 and 5 is connected to the filter 40 via a port. In this embodiment, each tube 4 and 5 is fixed to the filter tube 41 in an internally inserted state, but they may also be fixed in an externally inserted state, and the retaining groove 61 may hold the filter tube via the tubes externally inserted to the filter tube. Alternatively, the retaining groove 61 may be configured to hold tubes located away from the filter tube.

[0048] As shown in Figures 11 to 17, before priming, the chemical dispensing device 20 is placed on the tray 50. At this time, the push-in portion 23a (Figures 14 and 16) of the operating member 23 of the chemical dispensing device 20 is housed in the housing portion 54 (Figure 12) of the tray 50. This prevents the push-in portion 23a of the operating member 23 of the chemical dispensing device 20 from being pushed in within the housing portion 54. In addition, the lower end of the housing 21 on the operating member 23 side is fitted into the housing portion 54. In this state, the housing 21 is detachably fixed to a plurality of protrusions 55 inside the housing portion 54. Furthermore, in the top plate portion 52, a circumferential part of the opening edge of the housing portion 54 abuts against the inclined surface 21c (Figure 17) of the housing 21, thereby placing the chemical dispensing device 20 on the housing portion 54. In this state, the lower end of the operating member 23 is separated from the inner surface of the bottom of the housing portion 54.

[0049] Furthermore, the middle section of the upstream tube 4 is inserted into one of the two retaining grooves 61 (the right side in Figure 13), and the filter tube 41 provided on the upstream side of the corresponding filter 40 is positioned within the retaining groove 61, with the outer surface of the filter tube 41 fitted into the wide section 62 at the upper end of the retaining groove 61. In this state, the filter 40 provided on the upstream tube 4 is positioned so that the downstream side of the filter 40 faces upward in the direction of gravity.

[0050] Furthermore, the middle section of the downstream tube 5 is inserted into the other of the two retaining grooves 61 (the left side in Figure 13), and the filter tube 41 provided on the upstream side of the corresponding filter 40 is fitted into the wide section 62 at the upper end of the other retaining groove 61. In this state, the filter 40 provided on the downstream tube 5 is positioned so that the downstream side of the filter 40 faces upward in the direction of gravity. In addition, the end of the downstream tube 5 on the terminal connector 7 side (Figure 16) is inserted into the groove at the upper end of the tube retaining part 32, which is locked to the housing 21, and is held by the tube retaining part 32. In this state, chemical liquid is supplied from the main reservoir 3 connected to the upstream end of the upstream tube 4 to the chemical liquid storage section 22 of the chemical liquid discharge device 20 via the upstream tube 4, and priming is performed.

[0051] As described above, the tray 50 has a filter holding section 60, which allows the user to be aware of the orientation of the filter 40, thereby reducing the chances of priming being performed while the filter 40 is oriented incorrectly. The tray 50 includes a storage section 54 on which the drug solution discharge device 20 is placed, a filter holding section 60 capable of holding the filter 40 so that the downstream side of the filter 40 faces upward in the direction of gravity, and a base section 51 that can be placed on a stand or the like. Therefore, during priming, it is possible to suppress the situation in which the filter 40 does not function properly and air remains in the drug solution path. Furthermore, if the filter 40 is held in the appropriate orientation in the filter holding section 60 beforehand, it is possible to further suppress the chances of medical professionals or other users oriented the filter 40 incorrectly. In other words, it is preferable that the filter 40 is packaged assembled in the filter holding section 60. Even if the filter 40 is not held in the filter holding section 60 beforehand, the user can be made aware of the orientation of the filter 40 when holding the filter 40 in the filter holding section 60. This helps to prevent air from remaining in the chemical solution pathway.

[0052] Furthermore, the filter holding section 60 includes two holding grooves 61 for accommodating and holding the upstream tube 4 and the downstream tube 5, respectively. Each holding groove 61 is formed to extend vertically from the upper surface of the tray 50, and its upper end is configured to hold the filter tube 41 provided on the upstream side of the corresponding filter 40. This allows the filter 40 to be easily positioned upwards and maintained in that position by inserting the filter tube 41 into the upper end of the holding groove 61. In addition, this method suppresses an increase in the vertical height of the tray 50 compared to the case where most of the vertical portion of the filter 40 is held by being sandwiched at the top of the tray.

[0053] Furthermore, the filter holding portion provided on the tray is not limited to a groove formed in the tray, but may also be a holding arm provided on the tray. For example, the holding arm is an arm extending from the tray body having a tray mounting portion and a base portion, and is either a single arm or two arms that branch into two arm portions in the middle, and has a holding portion at the tip for holding the filter 40.

[0054] Furthermore, the filter holder provided in the tray can also be configured to directly hold the circular filter body 40a.

[0055] Furthermore, the tray 50 is cylindrical with an open bottom and a closed top. The mounting section for the liquid dispensing device 20 is a bottomed cylindrical storage section 54 formed on the top surface of the tray 50, with a retaining groove 61 formed from the top surface to the side. This allows the bottom of the tray 50 to be open and the overall thickness of the tray 50 to be reduced, making the tray 50 lightweight. It also allows the liquid dispensing device 20 to be held easily and stably. In addition, because the storage section 54 is located inside the cylindrical side of the tray 50, the position of the liquid dispensing device 20 can be brought closer to the base section 51, lowering the center of gravity and improving stability.

[0056] Next, we will describe the drug solution dispensing set, which consists of a drug solution dispensing device 20 and a tray 50.

[0057] Conventionally, when transporting a chemical dispensing device, only the device itself is housed in the packaging. However, in this case, vibrations during transport may cause the operating member of the chemical dispensing device to be pushed in, potentially resulting in the operating member being in a state different from that required during priming.

[0058] For example, the operating member 23 of the chemical discharge device 20 shown in Figure 2 may be pushed into the housing 21 during priming, and priming may be performed with the chemical discharge device 20 in an upright position in this state. In this case, as shown in Figure 5, the diaphragm 22a of the chemical storage section 22 may be bent inward on the inner side of the outer cylindrical body 33 into a roughly U-shaped ring, and air may remain in the inner part 22e near the lower end of the bent portion.

[0059] Therefore, it is necessary to ensure that the operating member 23 is not pressed in during priming. If the operating member 23 is pressed in due to vibration or other reasons during transport, an inexperienced medical professional may attempt priming the drug dispensing device 20 after it has been transported to a hospital or other destination and has been removed from its packaging. In this case, as described above, air may remain in the drug storage section 22. For this reason, it is desirable to prevent the operating member 23 from being in a state different from the state required during priming when transporting the drug dispensing device 20.

[0060] Furthermore, if an inexperienced medical professional incorrectly orients the drug solution discharge device 20 during priming, the inlet 22c, which communicates with the upstream tube 4, and the outlet 22d, which communicates with the downstream tube 5, located in the drug solution storage section 22, may end up below the drug solution storage section 22 in the direction of gravity. In this case, air may remain in the drug solution storage section 22. The drug solution discharge set described below can solve all of these problems.

[0061] Figure 18 shows the inside of the packaging 72 as viewed from above, after the packaging 72 has been cut horizontally, in the drug dispensing set 70 of the embodiment. As shown in Figure 18, the drug dispensing set 70 comprises a tray 50, a drug dispensing device 20, and a packaging 72. The packaging 72 is, for example, a rectangular parallelepiped shape with a housing section 73 on the inside, and is made of cardboard, foamed resin container, etc. The tray 50 and the drug dispensing device 20 are packaged in the packaging 72 with the push-in section 23a (Figure 2) of the operating member 23 housed in the housing section 54 (Figure 6, etc.), and the housing 21 of the drug dispensing device 20 detachably fixed by a plurality of protrusions 55 (Figure 6) inside the housing section 54. The drug dispensing set includes a main reservoir 3 housed in the packaging 72, and the upstream end of the upstream tube 4 may be connected to the main reservoir 3. Alternatively, the main reservoir 3 may not be included in the drug solution discharge set, and after removing the assembly 80 from the packaging 72, the main reservoir 3 may be connected to the upstream end of the upstream tube 4 via a connector or the like.

[0062] Inside the packaging body 72, a resin cushioning material or paper cushioning material having numerous air-filled sections where air is trapped may be provided between the assembly body 80 of the tray 50 and the liquid dispensing device 20 and the packaging body 72, so as to maintain a more stable assembly state of the assembly body 80.

[0063] With the above-described drug solution discharge set 70, since the push-in part 23a is housed in the tray 50, it is possible to prevent the push-in part 23a from being pushed in by vibration during transport of the drug solution discharge device 20, and priming from proceeding in that state. Therefore, it is possible to prevent the operating member 23 from being in a state different from the state required at the start of priming during transport of the drug solution discharge device 20. Therefore, at the destination, medical personnel can easily remove the drug solution discharge device 20 and the tray 50 as a single unit from the packaging 72, and while maintaining that integrated state, place the base part 51 on a table or the like so that the drug solution discharge device 20 is facing up and down. This makes it easy to achieve and maintain the state in which the operating member 23 is not pushed in, which is the state required at the start of priming. This reduces the possibility of air remaining in the drug solution storage part 22.

[0064] Furthermore, in the liquid dispensing set 70, the liquid dispensing device 20 and the tray 50 are positioned axially in the order of base portion 51, liquid storage portion 22, and outlet portion 22d of the liquid storage portion 22 (Figure 4) when assembled, and the liquid dispensing device 20 and the tray 50 are packaged in the packaging body 72 when assembled.

[0065] As a result, by placing the chemical discharge device 20 and tray 50 upright with the base portion 51 facing downwards, priming can be performed with the outlet portion 22d of the chemical storage portion 22 facing upward in the direction of gravity. Therefore, the possibility of air remaining in the chemical storage portion 22 can be further reduced.

[0066] Furthermore, the configuration of the drug solution dispensing device placed on the tray is not limited to the configuration of the drug solution dispensing device 20 shown in Figures 2 to 5, and various configurations can be adopted. For example, the drug solution storage section provided in the drug solution dispensing device may have a bellows shape that expands and contracts in the axial direction.

[0067] Alternatively, in the chemical solution discharge device 20, a filter 40 may be provided on only one of the upstream tube 4 and the downstream tube 5, and the tray may have a filter holding portion that holds the filter 40 provided on that one side.

[0068] Furthermore, the chemical solution discharge device that constitutes the chemical solution discharge set only needs to have an upstream tube and a downstream tube extending outside the housing, and may be configured without filters in the paths of the upstream and downstream tubes. In this case, a filter may be provided inside the housing of the chemical solution discharge device.

[0069] Furthermore, although the embodiment described a case in which the inclined surface of the housing of the liquid dispensing device is placed on the open edge of the storage section, the liquid dispensing device may also be placed in the storage section by fitting and fixing the cylindrical outer surface of the housing to the storage section without providing an inclined surface on the housing.

[0070] Alternatively, the tray may be a flat plate shape that is placed on a stand or the like, with the lower end of the chemical dispensing device resting on the upper surface of the tray, and the position of the chemical dispensing device during priming maintained by a locking part or the like. In this case, a filter holding part including a filter holding groove or the like may be provided on the upper surface of the tray in a location different from the mounting position of the chemical dispensing device. [Explanation of symbols]

[0071] 1 Drug dispensing device, 3 Main reservoir, 4 Upstream tube, 5 Downstream tube, 7 End connector, 8 Clamp, 20 Drug dispensing device, 21 Housing, 21a, 21b Housing elements, 21c Inclined surface, 22 Drug storage section, 23 Operating member, 23a Push-in section, 24 Inner upstream channel, 25 Inner downstream channel, 26 Lid, 27 Plunger, 28 Biasing member, 30 Switch, 31 Stopper, 32 Tube holding section, 33 Cylindrical body, 40 Filter, 40a Filter body, 41, 42 Filter tube, 50 Tray for drug dispensing device (tray), 51 Base section, 52 Top plate section, 53 Wall section, 54 Storage section, 55 Protrusion, 60 Filter holding section, 61 Holding groove, 62 Wide section, 63 Chamfer, 70 Drug dispensing set, 72 Packaging body, 73 storage compartment, 80 assembly body.

Claims

1. A tray for a chemical discharge device used in a chemical discharge device having an operating member that pushes out a chemical liquid from a chemical liquid storage section housed inside a housing by a pushing operation, an upstream tube and a downstream tube connected to the chemical liquid storage section and extending outside the housing, and a filter provided on the path of at least one of the upstream tube and the downstream tube. The tray for the chemical solution discharge device is The device comprises a mounting section on which the aforementioned chemical solution discharge device is placed, a base section on which the device is placed, and a filter holding section that holds the filter such that the downstream side of the filter faces upward in the direction of gravity when the device is placed on a table or the like. Tray for a chemical dispensing device.

2. The filter holding portion includes a holding groove for accommodating and holding the upstream tube or the downstream tube. The retaining groove is formed to extend vertically from the upper surface of the tray and is configured to hold the filter tube provided on the upstream side of the filter. A tray for a drug solution dispensing device according to claim 1.

3. It is a cylindrical body with an opening at the bottom and an upper surface at the top, the aforementioned storage portion is a bottomed cylindrical storage portion formed on the upper surface, and the storage portion is located inside the cylindrical body. A tray for a drug solution dispensing device according to claim 2.

4. A tray for a chemical solution discharge device according to claim 1, A chemical solution discharge set comprising the aforementioned chemical solution discharge device, The tray for the chemical solution discharge device is The aforementioned chemical solution discharge device has a fixing part that can be detachably fixed, The aforementioned liquid medicine storage section has an inlet that communicates with the upstream tube and an outlet that communicates with the downstream tube. The chemical solution dispensing device and the tray for the chemical solution dispensing device are arranged axially in the order of the base portion, the chemical solution storage portion, and the outlet portion when assembled, and the chemical solution dispensing device and the tray for the chemical solution dispensing device are packaged in the packaging body when assembled. Medication drainage kit.

5. A tray for a chemical solution discharge device according to claim 1, The aforementioned chemical solution discharge device is provided, The tray for the chemical solution discharge device is A fixing part that can detachably fix the aforementioned chemical solution discharge device, It has a housing that houses a push-in portion provided on the operating member that presses the liquid medicine storage portion, With the push-in portion housed in the housing portion, the chemical solution discharge tray and the chemical solution discharge device are assembled and packaged together. Medication drainage kit.

6. A chemical liquid discharge device having an operating member that pushes out the chemical liquid from a chemical liquid storage section housed inside the housing by a pushing operation, and an upstream tube and a downstream tube connected to the chemical liquid storage section and extending outside the housing, The chemical solution dispensing device tray is provided, which has a fixing part that can be detachably fixed to the chemical solution dispensing device and a base part that can be placed on a table or the like. The aforementioned liquid medicine storage section has an inlet that communicates with the upstream tube and an outlet that communicates with the downstream tube. The chemical solution dispensing device and the tray for the chemical solution dispensing device are arranged axially in the order of the base portion, the chemical solution storage portion, and the outlet portion when assembled, and the chemical solution dispensing device and the tray for the chemical solution dispensing device are packaged in the packaging body when assembled. Medication drainage kit.

7. A chemical liquid discharge device having an operating member that pushes out the chemical liquid from a chemical liquid storage section housed inside the housing by a pushing operation, and an upstream tube and a downstream tube connected to the chemical liquid storage section and extending outside the housing, The chemical solution dispensing device tray is provided, which has a fixing part that can be detachably fixed to the chemical solution dispensing device and a base part that can be placed on a table or the like. The tray for the chemical solution discharge device has a housing for housing a push-in portion provided on the operating member, and the tray for the chemical solution discharge device and the chemical solution discharge device are assembled together with the push-in portion housed in the housing and then packaged in a packaging body. Medication drainage kit.

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