JP6280376B2 - Chemical filling device - Google Patents

Description

  The present invention relates to a chemical solution filling device that fills a chemical solution storage part of a portable chemical solution administration device such as an insulin pump.

  In recent years, a treatment method in which a drug solution is continuously administered into a patient's body by subcutaneous injection or intravenous injection has been performed. For example, as a treatment method for diabetic patients, a treatment in which a trace amount of insulin is continuously infused into the body of the patient is performed. In this treatment method, in order to administer a drug solution (insulin) to a patient throughout the day, a portable drug solution administration device (so-called insulin pump) that can be fixedly carried on the patient's body or clothes is used.

  As a conventional chemical | medical solution administration apparatus, there exists a thing as described in patent document 1, for example. The chemical solution administration device described in Patent Document 1 includes a chemical solution storage unit that stores a chemical solution and a piston that is driven in the chemical solution storage unit. And a chemical | medical solution is administered to a user because a piston pushes out a chemical | medical solution from a chemical | medical solution storage part.

  However, generally, when the chemical solution administration device reaches the user, the chemical solution storage unit is not pre-filled with the chemical solution. Therefore, when using the chemical solution administration device, the user needs to perform an operation of filling the chemical solution storage unit from a chemical solution container (for example, a vial) in which the chemical solution is separately stored.

  As a conventional method for filling the drug solution storage unit, for example, a user first pours a drug solution from a drug solution container using a syringe. And there exists a method of puncturing the needle tube of a syringe in the filling port provided in the chemical | medical solution storage part, and filling a chemical | medical solution into the chemical | medical solution storage part.

  As another conventional method for filling the chemical solution storage unit, for example, first, an adapter is used to connect the chemical solution storage unit and the chemical solution container. Next, there is also a method of pulling a pusher provided in the chemical solution storage unit and filling the chemical solution storage unit with the chemical solution in the chemical solution container.

Special table 2010-501283 gazette

  However, the above-described filling method using the syringe has a problem in that the needle tube of the syringe is exposed during the filling operation, and the user may accidentally puncture it.

  Further, even in a filling method using a syringe and a filling method using a pusher of a chemical solution storage unit, there is a possibility that air may remain in the chemical solution storage unit when the chemical solution is filled from the chemical solution container into the chemical solution storage unit. For this reason, the conventional method for filling the chemical solution storage unit requires a step of exhausting the air remaining in the chemical solution storage unit, which makes the filling operation very complicated.

  In view of the above problems, an object of the present invention is to provide a chemical solution filling device that can prevent air from remaining in the chemical solution storage unit and can easily fill the chemical solution storage unit with the chemical solution. is there.

In order to solve the above-described problems and achieve the object of the present invention, a chemical solution filling apparatus of the present invention includes a housing that can be gripped, a mounting portion, a suction-side connection port, and a suction mechanism. The housing has a pedestal portion below the vertical direction. The mounting unit is provided in the housing, and is mounted with a chemical solution storage unit having a filling port into which the chemical solution is injected and a liquid feeding port for sending out the filled chemical solution. The suction side connection port communicates with the liquid supply port. The suction mechanism sucks the gas inside the chemical solution storage unit through the suction side connection port. And when the gas of a chemical | medical solution storage part is attracted | sucked by the suction mechanism, a chemical | medical solution storage part is filled with the chemical | medical solution storage part from the chemical | medical solution container connected to the filling port. The suction mechanism includes a lever member rotatably provided on a side surface perpendicular to the vertical direction of the housing, and a second end of the lever member on the opposite side to the one end rotatably supported by the housing. An attached link member; a suction side pusher which is connected to the lever member via the link member and is operated by the lever member; a syringe into which the suction side pusher is slidably inserted; and a suction side connection port; A suction tube for communicating with the syringe.

  According to the chemical liquid filling device of the present invention, the chemical liquid is filled into the chemical liquid storage portion while sucking the air in the chemical liquid storage portion by the suction mechanism, so that it is possible to prevent air from remaining in the chemical liquid storage portion of the chemical liquid administration device. It is possible to easily fill the chemical solution storage part with the chemical solution.

It is a perspective view which shows the example of embodiment of the chemical | medical solution filling apparatus and chemical | medical solution filling unit of this invention. It is a disassembled perspective view which shows the embodiment of the chemical | medical solution filling apparatus and chemical | medical solution filling unit of this invention. It is a disassembled perspective view which shows the example of embodiment of the chemical | medical solution filling apparatus of this invention. It is the perspective view which looked at the embodiment of the chemical | medical solution filling apparatus of this invention from the back side. It is a front view which shows the example of embodiment of the chemical | medical solution filling apparatus and chemical | medical solution filling unit of this invention. FIG. 6A is a side view showing a filling amount adjusting mechanism in an embodiment of the chemical liquid filling apparatus of the present invention, FIG. 6A is a side view showing a normal state, and FIG. 6B is a side view showing a state where a release button is pressed. It is a perspective view which shows the embodiment of the chemical | medical solution filling unit of this invention. It is a perspective view which shows the principal part of the chemical | medical solution storage tool in the embodiment of the chemical | medical solution filling unit of this invention. It is a disassembled perspective view which shows the filling adapter in the embodiment of the chemical | medical solution filling unit of this invention. It is sectional drawing which shows the filling adapter in the embodiment of the chemical | medical solution filling unit of this invention. It is sectional drawing which shows the principal part in the embodiment of the chemical | medical solution filling apparatus and chemical | medical solution filling unit of this invention. It is a front view which shows the operation | movement which fills the chemical | medical solution storage part in the example of embodiment of the chemical | medical solution filling apparatus of this invention, and a chemical | medical solution filling unit. It is explanatory drawing which shows typically the filling operation | movement of the chemical | medical solution in the embodiment of the chemical | medical solution filling apparatus of this invention, and a chemical | medical solution filling unit. It is explanatory drawing which shows the operation | movement which removes a filling adapter from the chemical | medical solution storage tool in the embodiment of the chemical | medical solution filling unit of this invention.

  Embodiments of the chemical liquid filling apparatus and the chemical liquid filling unit of the present invention will be described below with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure. The present invention is not limited to the following form.

<1. Embodiment>
1-1. Configuration Example of Chemical Solution Filling Device and Chemical Solution Filling Unit First, referring to FIG. 1 to FIG. 10, the configuration of an embodiment of the chemical solution filling device and the chemical solution filling unit of the present invention (hereinafter referred to as “present example”). An example will be described.
FIG. 1 is a perspective view of the chemical liquid filling device of this example as viewed from the front, and FIG. 2 is an exploded perspective view showing the chemical liquid filling device, the filling adapter, and the chemical liquid storage device of this example. In FIG. 1 and FIG. 2, in order to show the main part of the chemical storage device 2, an outer case 61 of the chemical storage device 2 described later is shown transparent.

  As shown in FIG. 1, the chemical liquid filling apparatus 1 is an apparatus that fills the chemical liquid storage unit 62 of the chemical liquid storage device 2 with the chemical liquid. A chemical solution storage device 2 and a filling adapter 3 constituting the chemical solution administration device are attached to the chemical solution filling apparatus 1. In addition, the filling adapter 3 is attached to the chemical solution storage device 2 in advance. The chemical solution storage unit 2 and the filling adapter 3 constitute a chemical solution filling unit 5. Further, a chemical solution filling set 10 is configured by the chemical solution filling device 1 and the chemical solution filling unit 5 attached to the chemical solution filling device 1.

  In addition, a vial 4 showing an example of a chemical solution container is attached to the filling adapter 3. The medicinal solution storage device 2 is combined with a drive unit having a power source, a driving mechanism for feeding medicinal solution, and the like to form a medicinal solution administration device. The drug solution administration device is a portable drug solution administration device for continuously administering a drug solution into a patient's body, such as a patch-type insulin pump, a tube-type insulin pump, and other portable drug solution administration devices. Widely applied.

[Chemical liquid filling device]
Next, the chemical solution filling apparatus 1 will be described with reference to FIGS.
FIG. 3 is an exploded perspective view showing the chemical liquid filling apparatus 1 of this example. FIG. 4 is a perspective view of the chemical liquid filling apparatus 1 of this example as viewed from the back. FIG. 5 is a front view showing the chemical solution filling set 10. 5 shows a state in which the first case 16 in the chemical liquid filling device 1 is removed. 6A and 6B are side views showing a filling amount adjusting mechanism 12 to be described later.

  As shown in FIGS. 3 and 4, the chemical filling apparatus 1 includes a casing 11 that forms an external appearance, a filling amount adjusting mechanism 12 provided in the casing 11, and a suction mechanism 13. .

[Case]
The casing 11 is formed in a substantially rectangular parallelepiped shape with a part cut away, and is formed so as to be gripped by a user. The housing 11 has a first case 16 and a second case 17 that overlap each other.

  The first case 16 has a substantially rectangular front part 16a, an upper surface part 16b that extends substantially vertically from one end in the longitudinal direction of the front part 16a, and a substantially vertical part that continues from the other longitudinal end of the front part 16a. And a mounting surface portion 16c facing the upper surface portion 16b. The first case 16 includes a first side surface 16d that is substantially perpendicular to one end of the front portion 16a in the short direction, and a first side surface that is substantially perpendicular to the other side of the front portion 16a in the short direction. It has the 2nd side part 16e facing the part 16d. And the chemical | medical solution filling apparatus 1 stands upright with the longitudinal direction of the housing | casing 11 facing a perpendicular direction by mounting the mounting surface part 16c on a desk or a stand.

  On the other side in the longitudinal direction of the front portion 16a, a pedestal portion 18 is provided that projects toward both sides in the short direction. The pedestal portion 18 is formed with an insertion hole 22 opened in a substantially circular shape.

  A mounting portion 21 is provided above the pedestal portion 18 in the front portion 16a. The mounting portion 21 is formed from the front portion 16a to the upper surface portion 16b. Moreover, the mounting part 21 is dented from one surface of the front part 16a toward the width direction orthogonal to the longitudinal direction and the short direction of the front part 16a. And as shown in FIG.1 and FIG.2, the chemical | medical solution filling unit 5 is mounted | worn with the mounting part 21. As shown in FIG.

  An opening 23 and a through hole 24 that are opened in a substantially square shape are formed in the main surface portion 21a that is parallel to one surface of the front portion 16a in the mounting portion 21. A positioning groove 26 is provided on the side wall 21b on the second side surface portion 16e side of the mounting portion 21.

  In addition, a rotation pin, a first bearing portion, and a second bearing portion (not shown) are provided on one side in the longitudinal direction of the front portion 16a and on the other surface opposite to the exposed one surface. A lever member 48 of the suction mechanism 13 described later is rotatably supported by the rotation pin. Further, a feed screw shaft 34 of a filling amount adjusting mechanism 12 to be described later is rotatably supported on the first bearing portion, and a swing pin 41 of a guide member 37 of the filling amount adjusting mechanism 12 is supported on the second bearing portion. It is rotatably supported.

  The upper surface portion 16b is provided with a suction side connection hole 27 into which a second connection port of the filling adapter 3 described later is inserted. The suction side connection hole 27 is provided with a suction side connection port 55 of the suction mechanism 13 described later.

  Further, as shown in FIG. 4, the first side surface portion 16d is formed with a notch portion 28 that is notched in a substantially square shape. A lever member 48 of the suction mechanism 13 to be described later is disposed in the cutout portion 28.

  The second case 17 is formed in a substantially rectangular flat plate shape, and is disposed on the back side of the housing 11. The second case 17 covers an opening formed by the upper surface portion 16b, the first side surface portion 16d, the second side surface portion 16e, and the placement surface portion 16c in the first case 16. Further, the other side of the second case 17 in the longitudinal direction protrudes toward both sides in the lateral direction, similarly to the front portion 16 a of the first case 16.

  As shown in FIG. 4, a long hole 31 and an operation window 32 are formed in the second case 17. The long hole 31 is opened at a predetermined length along the longitudinal direction at substantially the center of the second case 17. A filling amount adjustment scale is described in the vicinity of the long hole 31 in the second case 17. The filling amount adjustment scale may be displayed on one surface of the second case 17 by printing, or may be molded integrally with the second case 17. The operation window 32 is disposed on the other side in the longitudinal direction of the second case with respect to the long hole 31.

[Filling amount adjustment mechanism]
Next, the configuration of the filling amount adjusting mechanism 12 will be described.
As shown in FIGS. 3 and 5, the filling amount adjusting mechanism 12 includes a feed screw shaft 34, an operation unit 35, a movable member 36, a guide member 37, and a hook member 38.

  The feed screw shaft 34 is rotatably supported by a first bearing portion (not shown) provided in the first case 16. The feed screw shaft 34 is provided with a thread groove extending spirally on the outer peripheral surface thereof. The feed screw shaft 34 is arranged such that its axial direction is along the longitudinal direction of the housing 11. An operation unit 35 is provided on the other side of the feed screw shaft 34 in the axial direction. The operation unit 35 is formed in a substantially disk shape and is fixed to the feed screw shaft 34. A part of the operation unit 35 is exposed from the operation window 32 of the second case 17. Then, when the user rotates the operation unit 35, the feed screw shaft 34 rotates.

  The guide member 37 is formed in a flat plate shape having a substantially rectangular shape. A swing pin 41 is provided at one end of the guide member 37 in the longitudinal direction. The swing pin 41 of the guide member 37 is rotatably attached to a second bearing portion (not shown) provided in the first case 16. Thereby, as shown in FIG. 6B, the guide member 37 rotates around the swing pin 41.

  A bent piece 37 a is provided on the other side of the guide member 37 in the longitudinal direction. A release button 42 protrudes from one surface of the bent piece 37a. As shown in FIG. 2, the release button 42 is inserted through the insertion hole 22 of the first case 16. As shown in FIG. 3, a return spring 39 is disposed between the bent piece 37 a and the second case 17.

  Two guide grooves 37 b are formed between the swing pin 41 and the bent piece 37 a in the guide member 37. The two guide grooves 37 b are formed along the longitudinal direction of the guide member 37. Further, an engagement piece 43 is formed between the two guide grooves 37 b and the bent piece 37 a in the guide member 37. As shown in FIG. 6A, the engaging piece 43 protrudes in the same direction as the release button 42. As shown in FIG. 2, the engagement piece 43 passes through the through hole 24 of the first case 16.

  The movable member 36 is formed in a substantially flat plate shape, and an opening portion 36a that is opened in a substantially square shape is formed in the approximate center thereof. A nut portion 44 is provided on one side of the movable member 36. The nut portion 44 engages with the feed screw shaft 34. A display piece 45 is provided between the movable member 36 and the nut portion 44. The display piece 45 protrudes from the movable member 36 toward the second case 17. The display piece 45 is inserted into the long hole 31 provided in the second case 17. The user can confirm the position of the movable member 36 by visually recognizing the position of the display piece 45.

  A hook member 38 is inserted into the opening 36 a of the movable member 36. The hook member 38 has a sliding piece (not shown) that is slidably inserted into the guide groove 37b of the guide member 37, and a hook piece 38a. As shown in FIG. 6A, the hook piece 38 a protrudes in the same direction as the engagement piece 43. The hook piece 38a is engaged with a nut piece 64c of the chemical solution storage device 2 described later.

  When the feed screw shaft 34 is rotated, the rotational force of the feed screw shaft 34 is transmitted to the movable member 36 and the hook member 38 via the nut portion 44. The movable member 36 and the hook member 38 move along the guide groove 37b of the guide member 37. Thereby, the position of the hook piece 38a can be adjusted.

  The hook member 38 is attached to the guide member 37 via a sliding piece. Therefore, as shown in FIG. 5B, when the guide member 37 rotates, the hook member 38 moves together with the guide member 37.

[Suction mechanism]
Next, the configuration of the suction mechanism 13 will be described.
As shown in FIGS. 3 and 5, the suction mechanism 13 includes the suction side connection port 55, the suction tube 46, the syringe 47, the lever member 48, the suction side pusher 49, the lever member 48 and the suction side push. A link member 50 that connects the child 49 is provided.

  As shown in FIG. 2, the suction side connection port 55 is disposed in the suction side connection hole 27 provided in the housing 11. As shown in FIGS. 3 and 5, the suction side connection port 55 is connected to a suction tube 46 that is an example of a suction passage. One end of the suction tube 46 is connected to the suction side connection port 55, and the other end of the suction tube 46 is connected to the syringe 47.

  A first check valve 51 is provided in the middle of the suction tube 46. The first check valve 51 is opened only when the gas passing through the suction tube 46 goes from the suction side connection port 55 to the syringe 47, and is closed when the gas goes from the syringe 47 to the suction side connection port 55.

  The syringe 47 is formed in a substantially cylindrical shape. A second check valve 52 is provided at one end of the syringe 47 in the axial direction. The second check valve 52 is opened only when the gas is discharged from the syringe 47 and is closed when the gas is sucked into the syringe 47 from the outside except the suction tube 46. Therefore, only the gas that passes through the suction tube 46 is fed into the syringe 47.

  A suction side pusher 49 is inserted into the cylindrical hole of the syringe 47 so as to be slidable in the axial direction of the syringe 47. The suction side pusher 49 adjusts the capacity in the syringe 47 freely. The suction side pusher 49 is provided with a pressing spring 53. The pressing spring 53 is interposed between the suction side pusher 49 and the second side surface portion 16 e of the first case 16. The pressing spring 53 urges the suction side pusher 49 toward one side in the axial direction of the syringe 47.

  A lever member 48 is connected to the suction side pusher 49 via a link member 50. A bearing hole 48 a is provided at one end of the lever member 48. A rotation pin (not shown) provided in the first case 16 is passed through the bearing hole 48a. The lever member 48 is rotatably supported by the first case 16 and the second case 17 around the rotation pin.

  Further, one end portion of the link member 50 is rotatably attached to the other end portion of the lever member 48. Further, the other end of the link member 50 is attached to the suction side pusher 49 so as to be rotatable. When the user grips the lever member 48 and pivots about the pivot pin, the suction side pusher 49 together with the link member 50 resists the urging force of the pressing spring 53, and the other side in the axial direction of the syringe 47. (See FIG. 12). Thereby, the capacity | capacitance in the syringe 47 expands, and air is sent in into a syringe via the suction side connection port 55 and the suction tube 46. FIG.

  When the user stops the gripping operation of the lever member 48, the suction side pusher 49 is urged by the pressing spring 53 and inserted into the syringe 47. The suction tube 46 is provided with a first check valve 51 that blocks air from the syringe 47 toward the suction side connection port 55. Therefore, the air in the syringe 47 is discharged to the outside through the second check valve 52. Further, the moving force of the suction side pusher 49 is transmitted to the lever member 48 via the link member 50, and the lever member 48 returns to the initial state shown in FIG.

[Chemical solution filling unit]
Next, the chemical liquid filling unit 5 including the chemical liquid storage device 2 and the filling adapter 3 will be described with reference to FIGS. 1, 2, 5, and 7 to 11.
FIG. 7 is a perspective view showing the chemical solution filling unit 5.

[Chemical solution storage device]
As shown in FIGS. 2 and 7, the chemical storage device 2 includes an exterior case 61 that is open on one side, a chemical storage unit 62 that is disposed inside the exterior case 61, a storage unit side connection port 63, and a pusher. Member 64.

  The outer case 61 is formed in a container shape that is open on one side. The exterior case 61 has a main surface portion 61a formed in a substantially rectangular shape, a side wall 61b surrounding the main surface portion 61a, and a recessed portion 61c that is recessed by one step from the main surface portion 61a. The recessed portion 61c is provided with a substantially cylindrical storage portion side connecting tube 66. Positioning protrusions 61d are provided on the side wall 61b of the outer case 61 (see FIG. 2). The positioning protrusion 61 d is inserted into the positioning groove 26 provided in the mounting portion 21 when the chemical solution filling unit 5 is attached to the chemical solution filling apparatus 1.

FIG. 8 is a perspective view showing a main part of the chemical liquid storage device 2.
As shown in FIG. 8, the chemical liquid storage unit 62 is formed in a substantially cylindrical shape, and one surface is closed and the other surface is opened. A filling port 62 a and a liquid feeding port 62 b are provided at the end of the chemical liquid storage unit 62 on the closing side. A chemical solution is injected from the filling port 62a, and air or a chemical solution is sent out from the liquid supply port 62b. Further, as shown in FIG. 5, when the chemical solution filling unit 5 is attached to the chemical solution filling apparatus 1, the liquid supply port 62b is disposed above the filling port 62a in the vertical direction.

  As shown in FIG. 7, a liquid supply tube 69 is connected to the liquid supply port 62b. The storage unit side connection port 63 is connected to the end of the liquid supply tube 69 opposite to the liquid supply port 62b. The storage unit side connection port 63 is disposed in the storage unit side connection cylinder 66 in the outer case 61.

  Further, a pusher member 64 is slidably inserted into the cylindrical hole of the chemical liquid storage unit 62. The pusher member 64 includes a gasket 64a that moves while being in close contact with the inner peripheral surface of the chemical solution storage unit 62, a shaft portion 64b that is attached to the gasket 64a, and a nut piece 64c that is fixed to the shaft portion 64b. Have. The nut piece 64c is provided on the opposite side of the shaft 64b from the gasket 64a. When the chemical storage device 2 and the drive unit are combined together, the nut piece 64c is engaged with the screw shaft of the drive mechanism provided in the drive unit.

  The nut piece 64c engages with the hook piece 38a of the filling amount adjusting mechanism 12 when the chemical solution filling unit 5 is attached to the chemical solution filling apparatus 1 (see FIG. 11).

[Filling adapter]
Next, the filling adapter 3 will be described with reference to FIGS. 9 and 10.
FIG. 9 is an exploded perspective view showing the filling adapter 3, and FIG. 10 is a cross-sectional view showing the filling adapter 3.

  As shown in FIGS. 9 and 10, the filling adapter 3 includes a main body portion 71, a support portion 72, a first connection port 73, a second connection port 74, and a liquid feeding needle tube held by the main body portion 71. 75, a ventilation needle tube 76, and a ventilation filter 77. Further, the filling adapter 3 has a protection mechanism 78 provided in the main body 71.

[Main unit]
The main body 71 is formed in a substantially rectangular parallelepiped shape. A support portion 72, a protection mechanism 78, a liquid feeding needle tube 75, and a ventilation needle tube 76 are disposed on one side in the longitudinal direction of the main body portion 71. A first connection port 73 and a second connection port 74 are disposed on the other side of the main body 71 in the longitudinal direction.

  Further, on the other side in the longitudinal direction of the main body 71, a recess 81 that is recessed in a substantially square shape from the one surface 71a is formed. The recess 81 is provided at a position corresponding to the first connection port 73 and the second connection port 74 provided in the main body 71. A first communication hole 82 and a second communication hole 83 are formed in the recess 81. The first communication hole 82 and the second communication hole 83 pass through the main body 71 in the vertical direction. The recess 81 is formed with a communication path 84 that allows the first communication hole 82 and the second communication hole 83 to communicate with each other.

  Further, a mounting hole 85 is provided on the outer edge of the first communication hole 82 on the concave portion 81 side. A ventilation filter 77 is attached to the attachment hole 85. The ventilation filter 77 has a mechanism that allows only gas such as air to pass therethrough and prevents liquid from passing therethrough. The main body 71 is provided with a lid 86 that closes the opening of the recess 81.

[Needle tube for liquid feeding and needle tube for ventilation]
A needle tip is provided at one end of each of the liquid-feeding needle tube 75 and the ventilation needle tube 76. One end of each of the liquid-feeding needle tube 75 and the ventilation needle tube 76 is punctured by a rubber plug that seals the opening of the vial 4 and penetrates the rubber plug. A needle tip is also provided at the other end of the liquid feeding needle tube 75. The other end of the liquid feeding needle tube 75 is pierced into the filling port 62a of the drug solution storage unit 62 and penetrates the filling port 62a. The other end side of the liquid feeding needle tube 75 is bent in a substantially L shape.

  The liquid feeding needle tube 75 and the ventilation needle tube 76 are held by the main body 71. One end sides of the liquid-feeding needle tube 75 and the ventilation needle tube 76 protrude from the one surface 71 a of the main body 71. Further, the other end side of the liquid feeding needle tube 75 protrudes from the other surface 71 b which is the surface opposite to the one surface 71 a of the main body 71. That is, the liquid feeding needle tube 75 is provided so as to penetrate the main body portion 71 in the vertical direction. The other end of the ventilation needle tube 76 protrudes from the other surface 71b of the main body 71, or the end surface thereof is located on the same plane as the other surface 71b. The other end of the ventilation needle tube 76 does not have to protrude from the other surface 71b of the main body 71. For example, a ventilation hole communicating with the ventilation needle tube 76 may be provided in the main body 71.

  A substantially cylindrical support portion 72 is provided on one side in the longitudinal direction of the main body portion 71. The opening of the support portion 72 is set to a size that allows the mouth portion of the vial 4 to be inserted. One end side of the liquid feeding needle tube 75 and the ventilation needle tube 76 is disposed in the cylindrical hole of the support portion 72. That is, the support portion 72 is formed in a cylindrical shape that covers the periphery of the liquid feeding needle tube 75 and the ventilation needle tube 76, and is spaced apart from the needle tip on one side of the liquid feeding needle tube 75 and the ventilation needle tube 76 in the radial direction. Is provided. Thereby, it is possible to prevent the user from accidentally puncturing the needle tips on one end side of the liquid-feeding needle tube 75 and the ventilation needle tube 76.

  A rib 72 a that is continuous in the circumferential direction is formed on the inner wall of the support portion 72. The rib 72 a is fitted to the mouth of the vial 4. Thereby, the vial 4 can be held by the support portion 72.

  The protection mechanism 78 is provided on the other surface 71 b of the main body 71 and is disposed in the vicinity of the other end of the liquid feeding needle tube 75 in the main body 71. The protection mechanism 78 includes a first cover portion 88 that protrudes from the other surface 71 b of the main body portion 71 and a second cover portion 89.

  The first cover portion 88 showing an example of the protective cover is formed in a substantially flat plate shape. The first cover portion 88 has a groove portion 88a. The other end of the liquid feeding needle tube 75 held by the main body 71 is inserted into the groove 88a. The second cover part 89 showing an example of the protective cover is rotatably attached to the first cover part 88. The second cover portion 89 rotates to cover the groove portion 88a of the first cover portion 88 and the other end side of the liquid feeding needle tube 75 (see FIG. 14D). Thereby, the needle tip on the other end side of the liquid feeding needle tube 75 after the filling operation is completed can be covered, and the used filling adapter 3 can be brought into a safe state.

  In this example, the example in which the first cover portion 88 and the second cover portion 89 are used as the configuration of the protection mechanism 78 has been described. However, the configuration of the protection mechanism 78 is not limited to this. For example, the part which supports the needle tube 75 for liquid feeding in the main body is configured to be rotatable, and the needle tip on the other end side of the needle pipe 75 for liquid feeding is provided on the main body by rotating this part. It may be covered with a cover.

  A first connection port 73 and a second connection port 74 are provided on the other surface 71 b of the main body 71 on the recess 81 side. The first connection port 73 and the second connection port 74 are formed in a substantially cylindrical shape. The first connection port 73 and the second connection port 74 are respectively formed with communication holes 73a and 74a penetrating along the axial direction. In addition, sealing bodies 90 and 90 are attached to the openings on the side opposite to the main body 71 in the communication holes 73a and 74a so as to close the openings.

  The first connection port 73 communicates with a first communication hole 82 provided in the main body 71, and the second connection port 74 communicates with a second communication hole 83. Further, seal members 91 are provided at the ends of the first connection port 73 and the second connection port 74 opposite to the main body 71. As shown in FIG. 7, the first connection port 73 is inserted into the storage unit side connection tube 66 of the chemical solution storage device 2 and connected to the storage unit side connection port 63. The second connection port 74 is inserted into the suction side connection hole 27 of the chemical liquid filling apparatus 1 and connected to the suction side connection port 55.

1-2. Next, an example of a chemical solution filling method using the chemical solution filling set 10 of this example will be described with reference to FIGS.
FIG. 11 is a cross-sectional view showing the main part of the chemical solution filling set 10, and FIG. 12 is a front view of the chemical solution filling set 10 showing the operation of filling the chemical solution storage unit 62 of the chemical solution storage device 2. FIG. 13 is an explanatory view schematically showing the filling operation of the chemical solution.

  First, as shown in FIG. 2, the user stands the chemical solution filling apparatus 1 on a desk or a stand so that the opening on the upper surface portion 16 b side of the mounting portion 21 faces upward. In addition, the chemical solution filling device 1 is provided with a pedestal portion 18 projecting on both sides of the first side surface portion 16 d and the second side surface portion 16 e below the housing 11. Thereby, the chemical | medical solution filling apparatus 1 can be stood stably on a desk or a base.

  Next, as shown in FIG. 4, the operation part 35 of the chemical | medical solution filling apparatus 1 is operated, and the display piece 45 is set to the position of a predetermined scale. Thereby, as shown in FIG.2 and FIG.3, the movable member 36 and the hook member 38 move to a predetermined position. The hook member 38 in the filling amount adjusting mechanism 12 may be set before the chemical liquid filling device 1 is placed on a desk or a table, or after the chemical liquid filling unit 5 is attached to the chemical liquid filling device 1. May be.

  Here, the filling adapter 3 is attached to the chemical solution storage device 2 in advance. The other end side of the liquid feeding needle tube 75 in the filling adapter 3 passes through the filling port 62 a of the chemical solution storage unit 62. The first connection port 73 is inserted into the storage unit side connection tube 66 of the drug solution storage device 2, and the storage unit side connection port 63 passes through the sealing body 90 of the first connection port 73. Thereby, the liquid supply port 62b of the chemical | medical solution storage tool 2, the liquid supply tube 69, the storage part side connection port 63, and the 1st connection port 73 of the filling adapter 3 are connected.

  Next, as shown in FIGS. 1 and 5, the chemical solution filling unit 5 is attached to the chemical solution filling apparatus 1. Specifically, the protrusion 61 d of the chemical solution storage device 2 is inserted into the positioning groove 26 of the mounting portion 21, and the chemical solution storage device 2 is mounted on the mounting portion 21. Further, the second connection port 74 of the filling adapter 3 is inserted into the suction side connection hole 27 of the chemical solution filling apparatus 1. Then, the seal member 91 (see FIG. 10) of the second connection port 74 is in close contact with the suction side connection hole 27. Further, the suction side connection port 55 penetrates the sealing body 90 of the second connection port 74. As a result, the second connection port 74 and the suction side connection port 55 communicate with each other. As shown in FIG. 13A, the internal space of the syringe 47 of the suction mechanism 13 and the internal space of the chemical solution storage unit 62 are communicated with each other via a liquid supply port 62 b, a liquid supply tube 69, a communication path 84, and a suction tube 46. The Further, a suction passage 95 is constituted by the liquid feeding tube 69, the communication passage 84 and the suction tube 46.

  Further, as shown in FIG. 11, the engagement piece 43 protruding from the mounting portion 21 is engaged with the side wall 61 b of the outer case 61 in the chemical solution storage device 2. Thereby, the chemical | medical solution storage tool 2 can be stably mounted | worn with the mounting part 21. FIG.

  Further, the hook piece 38a of the filling amount adjusting mechanism 12 is engaged with the nut piece 64c of the chemical liquid storage device 2, and the insertion position of the pusher member 64 with respect to the chemical liquid storage section 62 is held at a predetermined position. As a result, as shown in FIG. 5, the position in the chemical solution storage section 62 of the gasket 64a of the pusher member 64 is maintained, and the capacity in the chemical solution storage section 62 can be maintained at a set amount. Further, even after the chemical liquid storage device 2 is mounted on the mounting portion 21, the position of the hook piece 38a engaged with the nut piece 64c can be changed by operating the operation section 35, and the capacity of the chemical liquid storage section 62 can be increased. Can be easily changed.

  Next, the vial 4 having a chemical solution is attached to the support portion 72 of the filling adapter 3. Thereby, one end side of the liquid feeding needle tube 75 and the ventilation needle tube 76 of the filling adapter 3 penetrates the rubber stopper of the vial bottle 4, and the liquid feeding needle tube 75, the ventilation needle tube 76 and the internal space of the vial bottle 4 are formed. Communicate. The other end of the liquid feeding needle tube 75 passes through the filling port 62 a of the chemical liquid storage unit 62. Therefore, as shown in FIG. 13A, the internal space of the vial 4 and the internal space of the drug solution storage unit 62 communicate with each other via the liquid supply needle tube 75.

  The vial bottle 4 may be attached to the filling adapter 3 before the chemical liquid filling unit 5 is attached to the chemical liquid filling apparatus 1.

  Next, as shown in FIG. 12, the user holds the casing 11, grasps the lever member 48, and rotates the lever member 48. When the lever member 48 is rotated, the suction side pusher 49 is moved through the link member 50, and the capacity in the syringe 47 is increased. The syringe 47 is provided with a second check valve 52 that opens only when the gas is discharged from the syringe 47 and closes when the gas is sucked into the syringe 47. Therefore, the syringe 47 sucks air from the suction tube 46 side.

  Thereby, as shown in FIG. 12 and FIG. 13B, the air in the chemical solution storage unit 62 is sucked into the syringe 47 through the suction passage 95. As a result, the inside of the chemical solution storage unit 62 has a negative pressure.

  Since the inside of the chemical solution storage unit 62 has a negative pressure, the chemical solution M1 is injected from the vial bottle 4 into the chemical solution storage unit 62 via the liquid supply needle tube 75 and the filling port 62a. In addition, external air is fed into the vial 4 via the aeration needle tube 76. In this way, the user can easily inject the chemical M1 into the chemical storage part 62 by gripping the lever member 48.

  When the user stops the gripping operation of the lever member 48, the suction side pusher 49 is urged by the pressing spring 53 and inserted into the syringe 47. The suction tube 46 is provided with a first check valve 51 that blocks air from the syringe 47 toward the suction side connection port 55. Furthermore, as described above, the syringe 47 is provided with the second check valve 52 that opens only when the gas is discharged from the syringe 47 and closes when the gas is sucked into the syringe 47. Yes. Therefore, the air in the syringe 47 is discharged to the outside via the second check valve 52 instead of the suction tube 46 side. Further, the moving force of the suction side pusher 49 is transmitted to the lever member 48 via the link member 50, and the lever member 48 returns to the initial state shown in FIG.

  Then, the user repeats the gripping operation of the lever member 48. As a result, the air in the drug solution storage unit 62 is sucked by the suction mechanism 13 of the drug solution filling apparatus 1 to be negative pressure, and the drug solution M1 is injected into the drug solution storage unit 62 from the vial 4.

  When the inside of the chemical solution storage unit 62 is filled with the chemical solution M1, the chemical solution M1 is filled up to the liquid feeding tube 69 as shown in FIG. 13A. Here, the suction passage 95 is provided with a ventilation filter 77 that allows only gas such as air to pass therethrough and does not allow liquid to pass. When the chemical liquid M1 is filled up to the chemical liquid storage section 62 and the ventilation filter 77 in the suction passage 95 and the air is exhausted, the suction mechanism 13 cannot suck the air, and the lever member 48 is hard to rotate. Thereby, it can be told with respect to the user that the chemical | medical solution storage part 62 was filled with the chemical | medical solution M1.

  In addition, the liquid supply port 62b through which air is sucked in the chemical liquid storage unit 62 is disposed above the filling port 62a into which the chemical liquid M1 is injected in the vertical direction. Furthermore, the air in the chemical solution storage unit 62 is sucked by the suction mechanism 13 of the chemical solution filling apparatus 1, so that the air in the chemical solution storage unit 62 can be discharged without leaving the liquid feeding port 62 b. As a result, it is possible to omit the operation of operating the pusher member 64 provided in the chemical solution storage device 2 after the chemical solution filling operation to remove the remaining air from the chemical solution storage unit 62. Further, since there is no need to operate the pusher member 64, the capacity of the chemical solution storage unit 62 does not change, and an appropriate amount can be filled in the chemical solution storage unit 62, and the chemical solution M1 generated when the air is vented is obtained. Emissions can be eliminated.

  Furthermore, the filling operation can be performed in the state in which the liquid feeding port 62b and the filling port 62a are arranged above the gasket 64a of the pusher member 64 in the vertical direction by the chemical solution filling apparatus 1.

  Next, the chemical solution filling unit 5 is removed from the chemical solution filling apparatus 1. Specifically, the release button 42 is pressed. As a result, as shown in FIG. 6B, the guide member 37 rotates around the swing pin 41. As a result, the engagement between the engagement piece 43 and the outer case 61 is released, and the engagement between the hook piece 38a and the nut piece 64c is released.

  Next, the chemical solution filling unit 5 is pulled upward. Accordingly, the second connection port 74 is pulled out from the suction side connection hole 27, and the chemical solution storage unit 2 is detached from the mounting unit 21. Thereby, the chemical solution filling operation into the chemical solution storage unit 62 is completed. Note that the vial 4 may be removed from the filling adapter 3 before removing the chemical filling unit 5 from the chemical filling device 1.

1-3. Next, a method for removing the filling adapter 3 from the drug solution storage device 2 of this example will be described with reference to FIG.
14A to 14D are explanatory views showing a method of removing the filling adapter 3.

  First, as shown in FIG. 14A, the chemical solution filling unit 5 is removed from the chemical solution filling apparatus 1. Next, as shown in FIG. 14B, the filling adapter 3 is rotated around the first connection port 73 in a direction in which the protection mechanism 78 side of the filling adapter 3 is separated from the chemical storage device 2. As a result, the liquid feeding needle tube 75 comes out of the filling port 62 a (see FIG. 8) of the chemical liquid storage unit 62.

  Next, as shown in FIG. 14C, the first connection port 73 is pulled out from the storage unit side connection tube 66, and the filling adapter 3 is removed from the chemical solution storage device 2. Next, as shown in FIG. 14D, the second cover part 89 is rotated in a direction to approach the first cover part 88. The needle tip on the other end side of the liquid feeding needle tube 75 is covered with the first cover portion 88 and the second cover portion 89. Thereby, it is possible to prevent the needle tip of the used liquid-feeding needle tube 75 from puncturing the user by mistake, and the safety of the filling adapter 3 can be improved.

  Thereby, the operation | work which removes the filling adapter 3 from the chemical | medical solution storage tool 2 is completed.

  The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention described in the claims. For example, in the above-described embodiment, the example in which the syringe 47, the suction side pusher 49, and the link member 50 are used as the suction mechanism 13 has been described. However, the present invention is not limited to this. As the suction mechanism, for example, an electric pump or the like may be used, and various other suction mechanisms may be applied.

  Moreover, you may comprise a mounting part so that the exterior case 61 whole of the chemical | medical solution storage tool 2 may be covered. In this case, it is preferable to provide a visual recognition window in which the state of the chemical solution storage part 62 can be visually recognized in the mounting part.

  DESCRIPTION OF SYMBOLS 1 ... Chemical solution filling apparatus, 2 ... Chemical solution storage device, 3 ... Filling adapter, 4 ... Vials (chemical solution container), 5 ... Chemical solution filling unit, 10 ... Chemical solution filling set, 11 ... Housing, 12 ... Filling amount adjustment mechanism, DESCRIPTION OF SYMBOLS 13 ... Suction mechanism, 16 ... 1st case, 17 ... 2nd case, 18 ... Base part, 21 ... Mounting part, 23 ... Opening part, 26 ... Positioning groove, 27 ... Suction side connection hole, 34 ... Feed screw shaft, 35 ... operation part 36 ... movable member 37 ... guide member 38 ... hook member 44 ... nut part 49 ... suction side pusher 50 ... link member 51 ... first check valve 52 ... second reverse Stop valve, 55 ... Suction side connection port, 61 ... Exterior case, 62 ... Chemical solution storage part, 64c ... Nut piece, 73 ... First connection port, 74 ... Second connection port, 75 ... Needle tube for liquid feeding, 76 ... Ventilation Needle tube, 77 ... Ventilation filter, 78 ... Protection mechanism, 95 ... Suction passage, M1 ... Chemical solution

Claims (5)

A grippable housing having a pedestal portion below the vertical direction;
A mounting portion provided with the chemical liquid storage unit provided in the housing and having a filling port into which the chemical liquid is injected and a liquid feeding port for sending out the filled chemical liquid;
A suction-side connection port communicating with the liquid feeding port;
A suction mechanism for sucking the gas inside the chemical storage part through the suction side connection port,
When the gas in the chemical solution storage unit is aspirated by the suction mechanism, the chemical solution storage unit is filled with the chemical solution from the chemical solution container connected to the filling port ,
The suction mechanism is
A lever member rotatably provided on a side surface perpendicular to the vertical direction in the housing;
A link member attached to the other end of the lever member opposite to the one end rotatably supported by the housing;
A suction-side pusher connected to the lever member via the link member and operated by the lever member;
A syringe into which the suction side pusher is slidably inserted;
A chemical solution filling apparatus comprising: the suction side connection port and a suction tube for communicating the syringe . In the middle of the suction tube, a first check valve that shuts off the gas from the syringe toward the suction side connection port is provided,
The syringe has a second check valve that opens only when the gas is discharged from the syringe to the outside, and closes when the gas is sucked into the syringe from the outside except the suction tube. Provided,
The chemical liquid filling device according to claim 1 , wherein a ventilation filter that allows only gas to pass but does not allow the chemical liquid to pass therethrough is provided in the suction passage from the suction side connection port to the liquid feeding port . A filling amount adjustment mechanism is provided that engages with a pusher member inserted into the chemical solution storage unit and holds an insertion position of the pusher member with respect to the chemical solution storage unit.
The chemical | medical solution filling apparatus of Claim 1 or 2 . The filling amount adjusting mechanism includes:
A hook member having a hook piece engaged with the pusher member;
A movable member to which the hook member is attached and having a nut portion;
A guide member that movably supports the hook member and the movable member;
A feed screw shaft with which the nut portion engages,
The chemical solution filling apparatus according to claim 3 , wherein the feed screw shaft is rotatably supported by the housing. A suction side connection hole in which the suction side connection port is arranged is provided on an upper surface portion arranged above the vertical direction of the casing,
The chemical | medical solution filling apparatus in any one of Claims 1-4 in which the connection port of the filling adapter with which the said chemical | medical solution storage part is mounted | worn is inserted in the said suction side connection hole.

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