JP2009039310A - Medical solution filling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medical solution filling device for introducing a medical solution stored in a medical solution bag into an empty syringe, capable of preferably extruding the medical solution from the medical solution bag with a simple constitution. <P>SOLUTION: The chemical solution filling device 1 is used for introducing the medical solution stored in the chemical bag 50 into the syringe 10. The device 1 includes a syringe holding means 25 for holding the syringe 10 and a roller 31 squeezing the medical solution bag 50 and extruding the medical solution in the bag toward the syringe 10. For example, the medical solution in the bag can be introduced into the syringe 10 while squeezing the bag 50 by the roller 31 by an operator manually moving a supporting member 32 toward the syringe side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a chemical solution filling apparatus for introducing a chemical solution contained in a chemical solution bag into an empty syringe. In particular, the present invention relates to a chemical solution filling apparatus that can favorably push out a chemical solution from a chemical solution bag with a simple configuration.

Medical fluoroscopic imaging devices include CT (Computed Tomography) scanners, MRI (Magnetic Resonance Imaging) devices, and PET (Positron).
Emission Tomography) device, ultrasonic diagnostic device, CT angiography device, MR angiography device and the like. When such an apparatus is used, for example, a contrast agent or physiological saline (hereinafter also simply referred to as “medical solution”) is often injected into a patient's body for the purpose of obtaining a clear image. .

  On the other hand, as a syringe used for injecting a chemical solution, a so-called prefilled type in which the chemical solution is initially filled in the syringe, and a suction type that sucks a predetermined amount of the chemical solution into the syringe from a container or bag containing the chemical solution There is something called.

For example, Patent Document 1 discloses an automatic filling device for introducing a chemical solution into a suction type syringe. In this chemical solution filling device, a syringe is held in the device by a driving mechanism, and the pressure inside the syringe is made negative to draw the chemical solution from a container containing the chemical solution into the syringe.
JP 2000-189515 A

  Even with the conventional chemical solution filling apparatus as described above, the chemical solution can be satisfactorily introduced into the syringe, and there is no practical problem. However, in particular, an apparatus that can introduce a chemical solution with a simpler configuration has not been proposed with respect to an apparatus that introduces a chemical solution contained in a chemical solution bag into a syringe.

  Then, in view of the said subject, this invention aims at providing the chemical | medical solution filling apparatus which can favorably introduce | transduce the chemical | medical solution from a chemical | medical solution bag into a syringe with a simple structure.

In order to achieve the above object, the chemical liquid filling device of the present invention comprises:
A chemical solution filling device for introducing a chemical solution contained in a chemical solution bag into a syringe,
Syringe holding means for holding the syringe;
A roller that squeezes the chemical solution bag and pushes the chemical solution in the bag toward the syringe.

  According to such a structure, a chemical | medical solution bag can be squeezed with a roller and the chemical | medical solution in the bag can be introduce | transduced into a syringe. Thus, in the structure which crushes a bag with a roller, there exists an advantage that the structure of an apparatus is easy to be simplified. In particular, when the roller is moved manually, there is no need to provide a drive source in the apparatus, so that the apparatus can be greatly simplified, which is advantageous for reducing the size and weight of the apparatus.

  The chemical solution filling apparatus of the present invention also includes a support mechanism that supports the roller so as to be rotatable and movable toward the syringe, and the operator manually moves the support mechanism to the syringe side. The roller may squeeze the chemical solution bag.

  Moreover, the structure which provides the handle | steering-wheel which rotates the said roller, and an operator operates this handle manually, the said roller rotates and the said chemical | medical solution bag is squeezed may be sufficient.

  Moreover, although the said roller may be only one, a pair of roller which pinches | interposes a bag may be provided.

  The chemical liquid filling device of the present invention is configured such that the piston of the syringe is pushed out as the chemical liquid is introduced from the chemical liquid bag into the syringe, and the piston is pushed out to a predetermined position. Further, a stopper may be provided to abut against the piston and prevent movement.

  According to such a configuration, it is possible to accurately fill the syringe with a desired amount of the chemical solution by appropriately adjusting the position of the stopper.

  As described above, according to the present invention, it is possible to provide a chemical solution filling apparatus that can satisfactorily introduce a chemical solution from a chemical solution bag into a syringe with a simple configuration.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a diagram showing an example of a chemical liquid filling device of the present invention, where (A) is a front view and (B) is a right side view. 2 and 3 are diagrams for explaining a method of using the apparatus shown in FIG. 1, and show a state where the drug solution bag is squeezed.

  As shown in FIG. 1, the chemical solution filling apparatus 1 includes a main body 20 in which the syringe 10 is disposed, and a vertically movable roller 31 provided above the main body 20.

  The main body 20 is made of resin as an example and has a vertically long shape. A syringe holding rib 25 for engaging a flange portion of the syringe 10 (detailed below) is provided at substantially the center of the main body portion 20 in the vertical direction (vertical direction).

  The syringe 10 is a conventional one and includes a cylindrical cylinder member 11 and a piston 13 slidably inserted therein. A conduit portion 11 a is formed at the tip (upper side in the drawing) of the cylinder member 11. A gasket 12 is attached to the front end of the piston 13, and a flange portion 13a is formed at the rear end.

  As shown in FIG. 1, in this example, a guide shaft 28 extends vertically through the back side of the main body 20. The guide shaft 28 extends upward from the upper end of the main body 20, and a pair of rollers 31 is disposed in the vicinity of the upper end.

  As shown in FIGS. 2 and 3, the pair of rollers 31 is for squeezing the chemical solution bag 50 containing the chemical solution. As shown in FIG. 1, each roller 31 is arranged in an orientation in which the axis is substantially horizontal. As shown in FIG. 1B, the front roller 31 and the back roller 31 are disposed at substantially the same height.

  As shown in FIG. 1A, in this example, both end portions of each roller 31 are rotatably supported by support members 32 and 32. The support member 32 is connected to the guide member 28 via a connecting member (not shown), and can move up and down along the guide member 28. That is, when the operator holds the support members 32 and 32 and moves them up and down, the pair of rollers 31 supported by the support members 32 and 32 also move up and down along the guide members 28. .

  As shown in FIG. 1B, a bag hanging hook 38 for hooking the chemical solution bag 50 is provided above the pair of rollers 31.

  Although details will be described later with reference to FIGS. 2 and 3, in the chemical liquid filling apparatus 1 of the present embodiment, the chemical liquid 50 in the bag is introduced into the syringe 10 by squeezing the chemical liquid bag 50 with the roller 31. Go. At this time, the piston 13 of the syringe 10 is gradually pushed out of the cylinder member 11. In the configuration of the present embodiment, as shown in FIG. 1 (A), when the piston 13 is pushed out to a predetermined position, it abuts against the flange portion 13a of the piston 13 and prevents the piston 13 from being pushed further. A stopper 41 is provided. The stopper 41 is located below the piston 13 and is configured so that the position can be appropriately changed in the vertical direction. By appropriately changing the position of the stopper 41 and adjusting the push-out amount of the stopper member 13, the introduction amount of the chemical liquid into the syringe 10 can be changed.

  Next, the usage method of the chemical | medical solution filling apparatus 50 of this embodiment comprised as mentioned above is demonstrated.

  First, as shown in FIG. 2, the operator hooks the drug solution bag 50 containing a predetermined drug solution (for example, a contrast medium) on the hook 38. In this state, the upper side of the bag 50 is sandwiched between the pair of rollers 31. As is clear from FIG. 2, the roller 31 sandwiches the bag 50 over its entire width.

  In the state shown in FIG. 2, the mouth portion 5 of the chemical solution bag 50 is located on the lower side, and the mouth portion 5 and the conduit portion 11 a of the syringe 10 are connected. In addition, the connector etc. which have sufficient pressure resistance are used for this connection part so that a connection may not be removed when introduce | transducing a chemical | medical solution from the chemical | medical solution bag 50 in the syringe 10. FIG. The piston 13 is pushed into the innermost part of the cylinder member 11 (the gasket 12 is located at the innermost part of the cylinder member 11).

  2 to FIG. 3, the operator manually moves the roller 31 to the syringe side. As an example, while holding the main body 20 with one hand, the operator holds the support member 32 with the other hand and moves it downward (see arrow A).

  When the operator moves the support member 32, the pair of rollers 31 supported by the support members 32 and 32 rolls around the bag surface and gradually squeezes the bag 50. Thereby, the area | region below the roller 31 of the bag 50 is pressurized, and an internal chemical | medical solution is extruded toward the syringe 10. FIG. The chemical solution is introduced into the syringe through the mouth portion 5 of the bag and the conduit portion 11a of the syringe. In accordance with this introduction, the gasket 12 and the piston 13 in the syringe are gradually pushed out downward.

  As shown in FIG. 3, when the piston 13 is pushed out to a predetermined position, the flange portion 13 a presses against the stopper 41, and the filling of the chemical solution is finished when the piston 13 does not move any more.

  As described above, according to the configuration of the present embodiment, the drug solution in the bag 50 can be introduced into the syringe 10 by manually moving the roller 31 to the syringe side. The chemical solution filling device of the present embodiment can be used in a horizontal position, but when used in a vertical position (with the chemical solution bag 50 facing upward) as shown in FIGS. Since the internal chemical solution is accumulated on the bag lower side (syringe side) due to its own weight, there is also an advantage that the iron 31 can be easily squeezed and the chemical solution can be satisfactorily introduced from the chemical solution bag into the syringe.

  In addition, according to the configuration of the present embodiment, the movement range of the piston 13 can be regulated by the stopper 41 so that the amount of the chemical solution filled in the syringe can be adjusted, so that a desired amount of the chemical solution is accurately filled. It is possible.

(Other embodiments)
FIG. 4 is a view showing another example of the chemical liquid filling apparatus of the present invention.

  As shown in FIG. 4, for example, the receiving plate 34 may be disposed on the back side of the bag, and the roller 31 may be disposed on the bag hand side. In this case, by moving the roller 31 downward, the bag 50 is squeezed between the roller 31 and the receiving plate 34, and the chemical in the bag is pushed out into the syringe.

  FIG. 5 is a front view showing still another example of the chemical liquid filling apparatus of the present invention.

  As shown in FIG. 5, a configuration may be adopted in which the roller 31 rotates to rotate the bag 50 by turning the handle 39 connected to the roller 31. The handle 39 may be directly fixed to the roller 31 or may be connected to the roller 31 via a transmission mechanism including a gear or the like. The handle 39 is applicable to both a type having a pair of rollers 31 as shown in FIG. 1 and a type having a roller 31 and a backing plate 34 as shown in FIG. In the case where the handle 50 is turned and thus the bag 50 is configured to be squeezed, the force from the operator can be stably transmitted to the bag 50, so that the jogging operation can be further stabilized.

  As mentioned above, although several examples of the chemical | medical solution filling apparatus of this invention were demonstrated, a roller 31 is moved by the drive mechanism (not shown) provided with the motor etc., and a squeaking operation | movement comes to be performed automatically. It may be. In this case, for example, the roller 31 itself may be rotated by receiving a driving force from the driving mechanism. Alternatively, the roller 31 itself may be freely rotatable, and the support member 32 may receive the driving force from the driving mechanism and move to the syringe 10 side. As the support member 32 moves, the roller 31 rolls on the bag surface like the first embodiment, and the bag can be gradually squeezed to push out the chemical in the bag.

It is a figure which shows an example of the chemical | medical solution filling apparatus of this invention, (A) is a front view, (B) is a right view. It is a figure for demonstrating the usage method of the apparatus of FIG. 1, and has shown the mode at the time of squeezing a chemical | medical solution bag. It is a figure which shows the state which squeezed the bag further from the state of FIG. It is a figure which shows the other example of the chemical | medical solution filling apparatus of this invention. It is a front view which shows the further another example of the chemical | medical solution filling apparatus of this invention.

Explanation of symbols

1 Chemical Solution Filling Device 5 Portion 10 Syringe 11 Cylinder Member 13 Piston 20 Main Body 25 Syringe Holding Rib 28 Guide Shaft 31 Roller 32 Support Member 34 Receiving Plate 38 Hook 39 Handle 41 Stopper

Claims (5)

A chemical solution filling device for introducing a chemical solution contained in a chemical solution bag into a syringe,
Syringe holding means for holding the syringe;
A chemical solution filling apparatus comprising: a roller that squeezes the chemical solution bag and pushes the chemical solution in the bag toward the syringe. A support mechanism for supporting the roller so as to be rotatable and movable toward the syringe;
The chemical solution filling apparatus according to claim 1, wherein an operator manually moves the support mechanism to the syringe side so that the roller squeezes the chemical solution bag. A handle for rotating the roller;
The chemical solution filling device according to claim 1, wherein an operator manually operates the handle to rotate the roller to squeeze the chemical solution bag.   The chemical | medical solution filling apparatus of any one of Claims 1-3 provided with a pair of said roller which pinches | interposes a chemical | medical solution bag. As the chemical solution is introduced from the chemical solution bag into the syringe, the piston of the syringe is pushed out,
The chemical | medical solution filling apparatus of any one of Claims 1-4 further provided with the stopper which contact | abuts to this piston and prevents a movement when the said piston is extruded to a predetermined position.

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