JPH0642676Y2 - Infusion bag - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an infusion bag capable of easily and safely adding a powdery or liquid drug in a vial to a drug solution in a bag.

[Conventional technology]

The medical solution used for conventional intravenous drip such as physiological saline or blood (hereinafter referred to as the medical solution) is put in a glass bottle equipped with a mouthpiece that can be pierced by an injection needle, and put the mouthpiece near the patient with the mouthpiece down. Set, connect the injection needle pierced in the mouth plug and the injection needle pierced into the patient's blood vessel with a conduit, adjust the height of the bottle,
The liquid medicine is injected into the blood vessel by the head pressure. On this occasion,
When the amount of the drug solution in the bottle decreases and the inside of the bottle is in a depressurized state, the drug solution cannot be injected, so another needle is pierced through the mouth plug,
Air is introduced along with the decrease of the chemical liquid to prevent the pressure in the bottle from being reduced. However, since the outside air enters the sterilized bottle, there is a concern that bacteria and the like may be mixed in the drug solution.

Therefore, recently, instead of the glass bottle, an infusion bag made of a thermoplastic resin that does not require introduction of outside air has been generally used.

As the above-mentioned thermoplastic resin, soft vinyl chloride, polyethylene, etc. are used, but especially, containing no plasticizer,
Polyethylene is often used because there is no concern that foreign matter will be eluted from the bag into the drug solution.

[Problems to be solved by the device]

By the way, when using the synthetic resin infusion bag to prevent the invasion of various bacteria is often added to the drug solution in the infusion bag when using the drug filled in the vial bottle that is often performed at the time of infusion As with glass drip bottles, the drug solution in the bag is extracted with a syringe, poured into a vial, the powdery or liquid drug is dissolved, and the drug solution is withdrawn again with a syringe to remove the drug solution in the bag. Because it is added to
In this case, there is a concern that various bacteria may enter.

In addition, the addition of a drug in a vial using the above-mentioned syringe must be carried out multiple times to completely transfer the drug, which is a troublesome task for busy nurses, especially for drug solutions in many infusion bags. If you have to add drugs in different vials, you have to pay the utmost attention, which is a time-consuming process.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an infusion bag capable of easily and safely adding a drug in a vial bottle to a drug solution in the bag without fear of contamination. .

[Means for Solving the Problems]

In order to achieve the above object, the infusion bag according to the present invention is a synthetic resin mouth member for connecting the mouth of a vial bottle sealed with a rubber stopper to one opening end of a cylindrical synthetic resin sheet. Is a fusion bag in which the lower part of the outer peripheral surface of the mouth member is fused to one open end of the cylindrical synthetic resin sheet, the lower end is sealed by a thin film, and the upper outer part is externally threaded. A cylindrical first part having a bottom and a hollow metal needle that is inserted into the first part and has an upper end closed and a penetrating blade at the tip that penetrates the closed part. A cylindrical rod-shaped part having a lid, which is fixed and has a lower end serving as a puncture blade, and a cylindrical lower small-diameter part provided with an internal thread on the inner periphery that is screwed into the male screw of the first part, and the small-diameter part Of the vial bottle formed concentrically and integrally through the A second part formed of a large diameter part into which the mouth part is fitted, the metal needle of the rod-shaped part piercing the partition part; a seal closing the large-diameter part of the second part; And a mechanism that is provided on each of the first parts and that prevents the vertical movement of the first part and the rotation of the first part.

Alternatively, a mouthpiece of a vial in which a male screw is formed on the outer periphery of the mouth portion and a rubber stopper having a recessed portion on the inner peripheral edge of which an undercut is provided along the edge is used to seal the opening with the recessed portion on the outside. Is a transfusion bag fused to one opening end of a cylindrical synthetic resin sheet, the mouth member is concentrically located, the lower end is integrally connected large The small cylindrical portion is shorter than the cylindrical portion and the large cylindrical portion, the lower end of the small cylindrical portion is closed by a thin film, and the outer periphery of the lower portion of the large cylindrical portion is at one open end of the cylindrical synthetic resin sheet. A first part that is fused and has an external thread formed on the outer periphery of the vial that is the reverse of the mouth of the vial, and the top end is sealed in a shape that fits tightly into the rubber stopper recess of the vial and the bottom end Is a hollow body with a puncture blade. And a second part in which the puncture blade side is fitted in the small cylindrical portion, and a female screw that is screwed with the male screw of the large cylindrical portion is provided on the lower inner peripheral surface, and the upper inner peripheral surface is provided. It has a cylindrical third part provided with an internal thread to be screwed with the external thread of the vial mouth part, and a seal for closing the upper opening of the third part.

[Action]

Since the infusion bag of the present invention has the above structure,
The inside is sterilized.After removing the seal of the mouth member and attaching the vial, add the drug in the vial to the drug solution in the infusion bag without contacting the outside air, and inflate without removing the vial. Since it can be provided, there is no concern that bacteria will enter inside, and it will be easy for nurses to prepare for infusion.

〔Example〕

FIG. 1 shows an embodiment of an infusion bag according to the present invention, in which reference numeral 1 is a bag portion.

The bag portion 1 is formed of a cylindrical synthetic resin sheet,
The mouth member 2 for connecting the vial 21 is fused to one opening.

In the vial bottle 21, the opening end of the mouth portion 22 is closed by the rubber stopper 22a, and the surface peripheral edges of the mouth portion 22 and the rubber stopper 22a are covered by the cap 23, which prevents the rubber stopper 22a from falling off. A seal 24 is attached to the cap 23 to prevent the sterilized rubber stopper 22a from coming into contact with the outside air and being contaminated.

Further, the mouth member 2 has a first component 3, a rod-shaped component 4 and a second component 5.

The lower part 3a of the outer peripheral surface of the first part 3 is fused to the open end of the bag part 1 made of the cylindrical synthetic resin sheet, the lower end is sealed by the thin film 3b, and the male screw 3c is provided on the upper part outer periphery. It has a bottomed cylindrical shape.

The rod-shaped part 4 is inserted into the first part 3, the upper end is closed by an integral lid part 4a, the lower end is a puncture blade 4b, and the lid part 4a is liquid-tightly penetrated so that the upper end is a puncture blade 6a. The hollow tubular metal needle 6 is formed in a cylindrical shape with a lid fixed along the center line.

The second component 5 has a small-diameter portion 7 and a partition portion 8 in which an inner thread is provided with a female screw 7a to be screwed with the male screw 3c of the first component 3.
Via a large diameter portion 9 concentrically and continuously connected to the small diameter portion 7 and into which the mouth portion 22 of the vial bottle 21 is fitted, the lid portion 4a of the rod-shaped component 4 is inserted and fixed. The puncture blade 6a of the metal needle 6 thus pierced penetrates the partition 8. The opening of the large-diameter portion 9 of the second component 5 is sealed with a seal 10 such as a Tyvek film that allows water vapor to pass during sterilization.

Bag portion 1 to which the mouth member 2 configured as described above is attached
A well-known spout (not shown) used at the time of drip is attached to the side opposite to the spout member 2, and is filled with a drug solution from this and then sealed and sterilized.

In order to add the drug in the vial bottle 21 to the sterilized infusion bag, first, the vial 21 seal 24 and the mouth member 2 seal
While removing 10, the vial mouth 22 is fitted to the large diameter portion 9 as shown in FIG. By this operation, the metal needle 6 penetrates the rubber stopper 22a, and the vial 21 and the inside of the rod-shaped component 4 are communicated with each other.

In this case, if the convex portion 11 is formed on the upper part of the inner periphery of the large diameter portion 9, the mouth portion 22 is locked by the convex portion 11 and the vial bottle 21 is firmly gripped by the large diameter portion 9.

Then, when the second part 5 is rotated, the male screw of the first part 3 is rotated.
3c, the second component 5 is lowered by the female screw 7a of the second component 5, and the rod-shaped component 4 is pushed by the partition portion 8 so that the first component 3
As shown in FIG. 3, the thin film 3b is broken by the puncture blade 4b at the tip so that the bag portion 1 and the vial bottle 21 are communicated with each other.

At this time, as shown in FIG. 4, if the inner periphery of the first component 3 and the outer periphery of the rod-shaped component 4 are provided with a groove 12 parallel to the axis and a ridge 13 fitted into the groove 12, respectively. Since the parts 3 and the bar-shaped parts 4 are prevented from rotating relative to each other and move only in the vertical direction, the thin film 3b broken by the puncture blade 4b is not completely cut but a part is connected to the first part 3. The thin film 3b does not fall into the bag portion 1 when it is broken.

The vial 21 and the bag part 1 that are communicated in this way are
By pressing, the drug solution in the bag part 1 flows into the vial 21 to dissolve the drug inside, and when the pressing is stopped, the bag part 1
Return to. By repeating this, the drug in the vial 21 is easily added to the drug solution in the bag 1.

The infusion bag to which the drug in the vial bottle is added is suspended with the mouth member 2 facing upward while the vial bottle is attached, and is provided for infusion.

FIG. 5 shows another embodiment of the infusion bag according to the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

The vial 61 used in this embodiment is provided with a male screw 62a on the outer periphery of a mouth portion 62, and the opening is closed by a rubber stopper 63 having a recess 63b with an undercut 63a formed on the lower edge of the inner periphery. A seal cover 64 is provided to cover this opening.

Further, the mouth member 31 has a first part 32, a second part 33 and a third part 34.

The first component 32 is concentrically located and has a large cylindrical portion 35 whose lower end is integrally connected and a small cylindrical portion 36 shorter than the large cylindrical portion 35. The lower end of the small cylindrical portion 36 is closed by a thin film 37. The outer periphery of the lower portion of the large cylindrical portion 35 is fused to one open end of the cylindrical synthetic resin sheet, and the outer periphery of the upper portion has a male screw 62a at the mouth of the vial bottle and a male screw 35a in the opposite direction. It is provided.

The second part 33 has a rubber stopper recess 63 of the vial 61 at the upper end.
A sealed hollow body with a sealing portion 33a that fits in b and a puncturing blade 33b at the lower end, has a side hole 33c on the upper side of the hollow portion, and the puncturing blade 33b side is inserted into the small cylindrical portion 36. Has been done.
An annular convex portion 33d is provided by surrounding the lower outer periphery of the second component 33, and is fitted in an annular groove 36a provided on the inner peripheral portion of the small cylindrical portion so as to be prevented from coming off. There is.

The third part 34 has a male screw 35 of the large cylindrical portion 35 on the inner peripheral surface of the lower part.
A female screw 34a that fits with a is provided, and a female screw 34b that is screwed with the male screw 62a of the vial mouth portion 62 is provided on the inner circumference of the upper portion, and is formed in a cylindrical shape. The upper opening of the third component 34 is sealed by the same seal 38 as the seal 10.

In addition, the sealing portion 33a of the second component 33 is attached to the vial rubber stopper 6
The force of pushing the second component 33 into the small cylindrical portion 36 is smaller than the force of pushing the second component 33 into the small cylindrical portion 36, and the force of pulling out the rubber stopper 63 from the vial bottle mouth portion 62 is such that the sealing portion 33a is pushed from the rubber stopper concave portion 63b. It is designed to be smaller than both the pulling force and the force for moving the second component pushed into the small cylindrical portion 36 upward. These are the undercut 63a, the shape of the sealing portion 33a, and the annular convex portion 33.
d, by adjusting the shape of the annular groove 36a and the like.

To add the medicine in the vial bottle 61 to the infusion bag by using the infusion bag and the vial bottle 61 having the above-described configurations, first, the mouth member
The seal 38 of 31 and the seal cover 64 of the vial bottle 61 are removed, and the male screw 62a of the vial mouth portion 62 is screwed into the female screw 34b of the third component 34 as shown in FIG. By this operation, the sealing portion 33a of the second component 33 is fitted into the rubber stopper recess 63b of the vial 61. Next, when the third part is rotated and the female screw 34a is screwed into the male screw 35a of the large cylindrical portion 35 of the first part 32, the second part 33 is pushed by the rubber stopper of the vial 61 as shown in FIG. It moves downward, the thin film 37 is broken by the tip puncture blade 33b, and the inside of the bag part 1 and the first part 32 is
It is communicated through the side hole 33c of the second component. Then, when the second part is rotated in the reverse direction, the third part 34 is raised and the rubber plug 63
Goes out of the vial mouth portion 62, and the vial 61 and the bag portion 1 are communicated with each other. In this mouth member 31, the passage is wide,
The drug in the vial bottle 61 is easily added to the drug solution in the infusion bag.

When this is used for instillation, the vial is hung with the mouth member facing upward while the vial is attached to the mouth member as in the previous embodiment.

[Effect of device]

As described above, the infusion bag of the present invention has a vial attached to each infusion bag, and the drug in the vial bottle is added to the infusion bag in a state where it is shielded from the outside, and the infusion bag is used as it is. Since it can be used for infusion in the same manner as above, there is an advantage that a nurse can easily prepare for it and can infuse without fear of contamination.

[Brief description of drawings]

1 to 4 are longitudinal sectional views of the vicinity of a mouth member and a vial bottle showing an embodiment of an infusion bag according to the present invention. FIG. 1 is a view showing the mouth member and the vial bottle, 2 is a diagram showing a state in which the first part of the mouth member and the vial are in communication, FIG. 3 is a diagram showing a state in which the vial and the bag portion are in communication, and FIG. 4 is IV in FIG. -IV sectional view taken along the arrow, FIGS. 5 to 8 are vertical sectional views showing the vicinity of the mouth member and the vial according to another embodiment, and FIG. 5 is a view showing the mouth member and the vial. FIG. 6 is a view in which the vial is attached to the mouth member, FIG. 7 is a view showing a state in which the bag portion and the first component are communicated with each other, and FIG. 8 is a view in which the bag portion and the vial bottle are communicated with each other. It is a figure which shows a state. 1 ... Bag part, 2 ... Mouth member, 3 ... First part, 3a ... Lower part of outer peripheral surface, 3b ... Thin film, 3c ... Male screw, 4 ... Rod part, 4a ... Lid part, 4b ... … Puncture blade, 5 …… Second part, 6 ...
… Metal needle, 6a… Puncture blade, 7… Small diameter part, 7a… Female screw, 8… Partition part, 9… Large diameter part, 10… Seal, 11…
… Convex part, 12 …… Groove, 13 …… Convex line, 21 …… Vial bottle, 22
...... Mouth part, 22a ...... Rubber stopper, 23 ...... Cap, 24 ...... Seal, 31 ...... Mouth member, 32 ...... First part, 33 ...... Second part, 33a ...... Sealing part, 33b ... … Puncture blade, 33c …… Side hole, 33d
...... Annular convex part, 34 ...... Third part, 34a ...... Internal thread, 34b ...
… Female thread to screw with vial, 35… Large cylindrical part, 35a
...... Male screw, 36 …… Small cylinder part, 36a …… Annular groove, 37 ……
Thin film, 38 …… Seal, 61 …… Vial bottle, 62 …… Mouth,
62a ... Male screw, 63 ... Rubber stopper, 63a ... Undercut, 63b ... Recess, 64 ... Seal cover.

Claims (3)

[Scope of utility model registration request] 1. An infusion bag in which a synthetic resin mouth member for connecting a mouth portion of a vial sealed with a rubber stopper is fused to one opening end of a cylindrical synthetic resin sheet, In the mouth member, the lower outer peripheral surface is fused to one open end of the cylindrical synthetic resin sheet, the lower end is sealed by a thin film, and the upper outer periphery is a cylindrical bottomed male screw provided. One part and the first part are inserted, the upper end is closed, the hollow metal needle having the puncture blade at the tip is fixed through the closed part, and the lower end is the puncture blade. A cylindrical rod-shaped component with a lid, a cylindrical lower small-diameter portion provided with an internal thread on the inner periphery that is screwed with the male screw of the first component, and the small-diameter portion and the partition portion are formed concentrically and integrally. In addition, it consists of a large diameter part into which the mouth of the vial is fitted, Infusion bags goods of metal needles and having a seal for closing the second part which pierces the partition portion, the open end of the large diameter portion of the second component. 2. The infusion solution bag according to claim 1, wherein the mouth member has a mechanism on the outer peripheral surface of the rod-shaped component and the inner peripheral surface of the first component, which is slidable in the vertical direction and prevented from rotating. . 3. A vial in which a male screw is formed on the outer periphery of a mouth portion and a rubber stopper having a recessed portion at an inner peripheral end edge along which an undercut is provided so that the opening portion is sealed with the recessed portion facing outward. Is a transfusion bag in which a mouth member for connecting the mouth portions is fused to one opening end of a cylindrical synthetic resin sheet, and the mouth members are concentrically located and the lower ends are integrally connected. A large cylindrical portion and a small cylindrical portion shorter than the large cylindrical portion, the lower end of the small cylindrical portion is closed by a thin film, and the outer periphery of the lower portion of the large cylindrical portion is one opening of the cylindrical synthetic resin sheet. A first part that is fused to the end and has an external thread formed on the outer periphery of the vial that is the reverse of the mouth of the vial, and the upper end is sealed in a shape that fits into the rubber stopper recess of the vial, and the lower end Is a hollow body with a puncture blade. A second part in which the puncture blade side is fitted to the small cylindrical portion, a female screw that is screwed into the male screw of the large cylindrical portion is provided on the lower inner peripheral surface, and the upper inner peripheral surface is A cylindrical third part provided with a female screw to be screwed with a male screw of the vial bottle mouth, a seal for closing the upper opening of the third part, and an inner peripheral surface of the small cylindrical part of the first part and the second part. An infusion bag, which is provided on a lower outer peripheral surface of a component and which prevents the second component pushed into the small cylindrical portion from being pulled out.