JPH0961588A - Interior material for shield vessel containing radioactive chemical vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent breakage of vessels and mechanize the containing work of chemical vessels in a shield vessel by providing a chemical vessel fixing part consisting of a shield vessel coupling part, a chemical vessel insertion part and a plurality of notches for expansion formed into a cone shape and making the length of the fixing part equal to the body length of the vessel. SOLUTION: Interior material 1 is constituted of a shield vessel coupling part 2, a chemical vessel insertion part 3 and a chemical vessel fixing part 4. The coupling part 2 is fixed by fitting a level difference 8a in a groove 9a. As no bonding agent is used, a vessel body 8 and an exterior vessel 9 are easily separated. The fixing part 4 is extended downward from the insertion part 3 to a conical stage. Vessel fixing pieces are formed with six notches for expanding and the length of the fixing part 4 is made the same as the body length of the chemical vessel. By this, chemical vessel is contained in the shield vessel to transport and store. As the chemicals vessel is fixed in the shield vessel which has a buffering effect to shocks, the chemical vessel is prevented from breakage and the safety is enhanced. Also, the containing of chemical vessel in the shield vessel can be mechanized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior material for a shielded container for safely storing, transporting and storing a radioactive drug solution container containing several to several tens of milliliters of radioactive drug solution, and an interior material for the shield container. The present invention also relates to a shielded container, and further to a shielded container for storing a radioactive drug solution in which a radioactive drug solution container containing a radioactive drug solution is stored.

[0002]

2. Description of the Related Art A shielded container for storing, transporting, and storing a radioactive drug solution container such as a vial, a prefilled syringe, and an ampoule in which a radioactive drug solution of several ml to several tens of ml is enclosed.
Conventionally, most of them are designed in consideration of radiation shielding and safety when the radioactive chemical liquid container is broken.

For example, around the body of the radioactive chemical solution container,
It is generally known that the radioactive drug solution container is fixed by surrounding it with an absorbent paper having a drug solution absorbing ability and filling a gap between the radioactive drug solution container and the shielding container. However, since the radioactive chemical solution container and the shielded container may have a dimensional error at the time of molding, the absorption of the absorbent paper alone may result in insufficient fixation of the radioactive chemical solution container into the shielded container or the radioactive chemical solution container. There is a case where the buffering action for preventing damage of is insufficient.

In the above-mentioned one, in order to secure the buffering action, it is necessary to fill the absorbent container with absorbent paper so as not to leave a gap between the radioactive drug solution container and the shielding container. It is difficult for a machine to perform detailed work such as inserting a container and absorbent paper.

When the drug solution is drawn out from the radioactive drug solution container with a syringe or the like during use, the radioactive drug solution container can be easily pulled out by tilting or tipping it over. At that time, however, the radioactive drug solution container and the shield container are fixed to each other. Since it is insufficient, it is difficult to tilt the radiopharmaceutical solution container safely while it is housed in the shielding container, and much less to tip it over. If the radioactive drug solution container is taken out of the shielded container to perform the work, it is possible to tilt or invert the drug solution container, but this is inappropriate because the risk of radiation exposure increases.

In recent years, a shielding container having a rubber interior material (19) as shown in FIGS. 8 to 11 has been developed. This is to fix the vial-type radioactive drug solution container (21) at its neck, and the radioactive drug solution container and the shielding container can be tilted or tumbled together, and the radioactive drug solution container can be slightly moved from the shielding container. The liquid medicine can be pulled out and the liquid medicine can be easily taken out from the radioactive liquid medicine container.

However, since the above-mentioned interior material is in contact with only the neck of the radioactive liquid medicine container, the fixing at the lower portion of the liquid medicine container body is insufficient, and the space between the liquid medicine container body and the shield container is externally applied. There is a risk that the radioactive chemical liquid container may be shaken due to the impact of and damage the radioactive chemical liquid container. Of course, the absorbent paper (22) is arranged between the body part of the chemical liquid container and the shielding container, but the cushioning effect is still insufficient only by that, and the radioactive chemical liquid container is easily broken. Further, when the radioactive chemical solution container is slightly pulled out from the shielding container, as shown in FIG. 11, the length (M) or more (the inner surface (19a) of the interior material lifted upward by the chemical solution container shoulder comes into contact with the chemical solution container body). It will not be held unless it is pulled out.

[0008]

SUMMARY OF THE INVENTION According to the present invention, a radioactive drug solution container is securely fixed in a shielded container and shocks from the outside are buffered to prevent damage to the radioactive drug solution container. The radioactive drug solution container can be tilted or tumbled together with the shielded container, and the radiopharmaceutical solution container can be pulled out from the shielded container a little to facilitate extraction of the drug solution from the radioactive drug solution container to the syringe, etc. An object of the present invention is to facilitate the work of storing a radioactive drug solution container containing a drug solution in a shielding container and to mechanize the storage work.

[0009]

As a result of repeated studies to solve the above problems, it was found that the above problems can be solved by providing an interior material having the following structure in a shielding container. The present invention has been completed.

That is, it is an interior material for a shielding container for accommodating a radioactive drug solution container containing a radioactive drug solution, the shielding container engaging part engaging with the opening of the container body, and the shielding container engaging part adjacent to the shielding container engaging part. A liquid medicine container insertion portion having an inner diameter larger than the body diameter of the radioactive liquid medicine container, and a substantially truncated cone shape formed downward from the liquid medicine container insertion portion, and provided with a plurality of notches for expansion from the lower end edge thereof An interior having a drug solution container fixing part made of a drug solution container fixing piece, wherein the length (L) of the drug solution container fixing part is 1/2 to 1 of the trunk length of the radioactive drug solution container. It is a material. In the interior material, the drug solution container fixing portion preferably has 3 to 12 drug solution container fixing pieces, and particularly preferably 6 to 8. Also, attach an elastic ring around the fixed part of the chemical solution container,
An anti-slip process may be applied to the inner surface of the chemical liquid container fixing portion. A shielded container provided with the interior material and a radioactive drug solution storage shielded container in which a radioactive drug solution container containing a radioactive drug solution is housed in the shield container are preferably used for solving the above problems.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a radioactive drug solution container is a container in which several ml to several tens ml of radioactive drug solution is enclosed, and is made of glass or synthetic resin having a cylindrical body (for example, a vial). , Prefilled syringes, ampoules, etc.)
Is shown.

The shielding container comprises a container body and a lid,
The container body is a bottomed one having an accommodating portion for the radioactive drug solution container, and its inner diameter is slightly larger than the trunk diameter of the radioactive drug solution container to be accommodated. The container body is a container body made of a radiation shielding member and an outer container made of plastic. The lid is a lid body made of a radiation shielding member and an outer container made of plastic. As the radiation shielding member, it is possible to use one or more radiation shielding members such as lead, tungsten, a combination of lead and tungsten, and the like.

The interior material is composed of a shielding container engaging portion, a liquid medicine container inserting portion, and a liquid medicine container fixing portion. The shielding container engaging portion is a portion for fixing the interior material itself to the shielding container, and is engaged partially or wholly so as to be firmly fixed to the opening of the container body of the shielding container. The method of fixing is to make a groove in the outer container and fit the inner material there, or to provide a concave and convex fitting part between the outer container or the container body and the shielding container engaging part, or to use a screw type. Alternatively, various methods such as adhering an interior material to the opening of the container body are adopted. The drug solution container inserting portion is adjacent to the shielding container engaging part and has an inner diameter substantially equal to the barrel diameter of the radioactive drug solution container but larger than the barrel diameter. The inner diameter may be any size as long as the drug solution container can be easily inserted, and an inner diameter slightly larger than that of the drug solution container is usually selected. The drug solution container fixing portion is formed in a substantially truncated cone shape downward from the drug solution container inserting portion, and is composed of a drug solution container fixing piece provided by a plurality of notches for expansion from the lower end edge thereof. The length (L) is 1/2 to 1 of the body length of the radioactive drug solution container to be stored. Further, it is desirable that the respective portions of the interior material (shielding container engaging portion, chemical liquid container insertion portion, and chemical liquid container fixing portion) are not independent of each other, and are made of one member having no boundary.

When the radioactive drug solution container is stored in the shielding container, the drug solution container fixing portion of the interior material is expanded to the same inner diameter as the trunk diameter of the radioactive drug solution container, and at the same time, the body part of the radioactive drug solution container is directed toward the center. The radiopharmaceutical solution container is fixed by pinching with pressure. For this reason, the liquid medicine container fixing portion needs to have a bending ability and a restoring force for bending.
Specifically, plastic, thin metal, specially processed paper, and the like are used, but plastics such as polypropylene, polyethylene, polyvinyl chloride, and nylon are particularly preferable.

Here, the number and size of the notches for expansion provided in the chemical solution container fixing portion are appropriately determined according to the material and shape of the interior material, the size of the radioactive chemical solution container to be housed, etc.
When the number of notches for expansion is small, the bending ability is small and the restoring force is large. On the contrary, when the number is large, the bending ability is large, but the restoring force is small. In addition, when the width of the expanding cut is small, the bending ability is small and the restoring force is large. On the contrary, when the width is increased, the bending ability is increased but the restoring force is decreased. Taking these into consideration, it is preferable to form an appropriate number of the notch for expansion, which is selected from 3 to 12, to form the same number of pieces of the liquid medicine container fixing pieces, and particularly 6 to 8 pieces of the liquid medicine container fixing pieces. Is preferably formed.

Further, in order to reinforce the bending ability and the restoring force against bending of the liquid medicine container fixing portion, an elastic ring made of an elastic member such as rubber may be attached to the outer periphery of the liquid medicine container fixing portion. Further, in order to secure and fix the radioactive chemical solution container more securely, the inner surface of the chemical solution container fixing portion may be subjected to anti-slip processing. Further, an absorbent material for absorbing the chemical liquid may be arranged between the storage container and the interior material.

Since the drug solution container insertion portion of the interior material has an inner diameter which is substantially equal to the body diameter of the radioactive drug solution container but slightly larger than the body diameter, the radioactive drug solution container can be easily inserted.
When inserting (accommodating) the radioactive liquid medicine container into the shielded container provided with the interior material, until the liquid medicine container fixing part has the same inner diameter as the trunk diameter of the radioactive liquid medicine container by the expansion notch provided in the liquid medicine container fixing part. At the same time as the expansion, the liquid medicine container fixing part tries to return to the original narrow diameter due to its own restoring force and pinches the body part of the radioactive liquid medicine container toward the center, so that the body part is inserted from the bottom side. Sequentially, it is held by the drug solution container fixing part and is securely fixed. Further, when the radioactive chemical solution container is pulled out, the radioactive chemical solution container can be held at an arbitrary position by the chemical solution container fixing portion. Moreover, when the radioactive drug solution container is stored, the drug solution container fixing part guides the radioactive drug solution container toward the center of the shielding container, so that the radioactive drug solution container and the shielding container are not affected by some dimensional error and can be smoothly operated. A radioactive drug solution container can be stored. Further, since the absorbent paper placed between the shielding container and the interior material is pushed outward by the drug solution container fixing portion, it does not hinder the storage of the radioactive drug solution container. Therefore, it becomes possible to mechanize the operation of storing the radioactive drug solution container.

[0018]

The present invention will be described below with reference to the accompanying drawings showing one embodiment. 1 to 3 show an interior material (1) according to one embodiment of the present invention, FIG. 4 shows a shielding container (7) provided with the interior material (1), and FIG. 5 shows the shielding container (7). 1 shows a radioactive drug solution storage shield container (15) which houses a radioactive drug solution container (16) containing a radioactive drug solution. The shielding container (7) shown in FIG.
It is composed of a container body (10) and a lid (13), and is provided with an interior material (1) described later at the opening of the container body.

The container body (10) is a storage part for a radioactive drug solution container.
A bottomed, substantially cylindrical container body (8) having (14) is provided with a plastic outer container (9). Also,
The lid (13) consists of a lead lid (11) and a plastic outer container.
It is a product of (12). The fitting portion between the container body (10) and the lid (13) is provided with steps (8a, 11a) inside and outside the radiation shielding member, and by meshing the steps, radiation from the gap generated by providing the interior material is prevented. Prevents leakage. Further, the outer container (9) of the container body is provided with an annular groove (9a) for fitting an inner material.

The interior material (1) is composed of a shield container engaging portion (2), a drug solution container inserting part (3) and a drug solution container fixing part (4). The shielding container engagement part (2) is shaped to engage with the step (8a) provided in the opening of the container body of the shielding container, and its peripheral edge is fitted into the groove (9a) provided in the outer container. By doing so, it adheres and is fixed to the opening of the shielding container body. At this time, since no adhesive or the like is used to fix the interior material, at the time of disposal, it can be easily removed by simply pulling the chemical solution container fixing piece of the interior material from the shielding container. Container body (8) and outer container made of plastic
(9) can be easily separated. The container body (8)
Can be reused. The drug solution container inserting portion (3) is adjacent to the shielding container engaging part and has an inner diameter that is substantially equal to the barrel diameter of the radioactive drug solution container but slightly larger than the barrel diameter. The drug solution container fixing portion (4) extends downward from the drug solution container insertion portion into a substantially truncated cone, and is provided with six expansion notch (5) from the lower end edge of the drug solution container fixing piece (6). 6) is formed, and the length (L) of the drug solution container fixing portion is approximately the same as the trunk length of the radioactive drug solution container to be stored.

Each portion of the interior material is seamless and is made of one member (for example, plastic such as polypropylene) having a bending ability and a restoring force for bending. FIG.
In, the radioactive drug solution container (16) is a glass drug solution container type. In addition, an absorbent paper (17) capable of absorbing the drug solution enclosed in the radioactive drug solution container is arranged between the radioactive drug solution container and the shielded drug container just in case. When the radiopharmaceutical solution container (16) is stored in the shielding container (7) shown in Fig. 4, as shown in Fig. 5, the chemical liquid container fixing portion of the interior material has the same inner diameter as the trunk diameter of the radiopharmaceutical liquid container. Simultaneously with the expansion, the drug solution container fixing portion tries to return to the original narrow diameter due to its own restoring force, and the body part of the radioactive drug solution container is pinched toward the center to securely fix it. Moreover, when pulling out the radioactive drug solution container, the radioactive drug solution container can be held at an arbitrary position. Furthermore, when the radioactive drug solution container is completely pulled out, the drug solution container fixing portion returns to the original state again.

6 and 7 show another embodiment of the interior material of the present invention, which is an interior material having eight chemicals container fixing pieces (6).
An elastic ring (18) made of an elastic material such as rubber is attached to the outer periphery of the chemical liquid container fixing portion in order to reinforce the bending ability of the chemical liquid container fixing portion and the bending restoring force. In addition, in order to secure and fix the radioactive chemical liquid container to these interior materials, the inner surface of the chemical liquid container fixing portion may be subjected to anti-slip processing.

[0023]

[Experimental Example] Experimental results are shown with specific numerical values for the radiopharmaceutical liquid storage shielding container of the present invention prepared as shown in FIG. In order to store a 5 ml chemical liquid container (body diameter 20 mm: body length 30 mm), the container body and lid body are made of lead, the inner diameter is 24 mm, the thickness is 9 mm, and the step part of the opening is x Four
A shielding container having mm, y of 4 mm and z of 3 mm was prepared. The interior material was made of polypropylene and its thickness was 0.8 mm. Also, the liquid medicine container fixing part is engaged with the step of the container body,
The peripheral edge can be fitted into the groove (9a) provided in the outer container. Further, the length (L) of the fixed portion of the chemical liquid container was set to 22 mm, and six notches for expansion having a width of 0.5 mm and a depth of 18 mm were provided. In this, when the above-mentioned chemical solution container is stored, the chemical solution container fixing part is expanded to the same inner diameter as the body diameter of the chemical solution container by the notch for expansion, and while shaking or vibrating in that state Also, it was confirmed that the drug solution container was securely fixed, without the drug solution container coming into contact with the shielding container and the gripping of the drug solution container becoming unstable. Further, even when the drug solution container was pulled out by 5 mm, 10 mm, and 15 mm, the drug solution container was held at each position, and the drug solution container did not pop out even when tilted or inverted. When the drug solution container was completely pulled out, the interior material returned to the state before the drug solution container was inserted.

[0024]

According to the interior material of the present invention, the radioactive drug solution container can be safely stored in the shielding container, and can be transported and stored. That is, since the radioactive chemical solution container is securely fixed in the shielding container and has a shock absorbing effect against shock, it is possible to prevent damage to the radioactive chemical solution container and enhance the safety of the manufacturer, the carrier and the user. it can. Moreover, it is possible to tilt or invert the radioactive drug solution storage shielded container (together with the radioactive drug solution containing radioactive drug solution and the shielded container), and to pull out the radioactive drug solution container from the shielded container a little, Since it is easy to remove the chemical liquid, it is possible to improve the usability for the user and enhance the safety. Further, since the storage of the radioactive drug solution container in the shielding container can be mechanized, the work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an interior material which is one embodiment of the present invention.

FIG. 2 is a view of the interior material of FIG. 1 seen from the side.

FIG. 3 is a view of the interior material of FIG. 1 as seen from directly above.

FIG. 4 is a cross-sectional view of a shielding container including the interior material of FIG.

5 is a transverse cross-sectional view of a radioactive drug solution storage shield container in which a radioactive drug solution container containing a radioactive drug solution is housed in the shield container of FIG. 4. FIG.

FIG. 6 is a perspective view of an interior material having a stretchable ring, which is another embodiment of the present invention.

FIG. 7 is a diagram of the interior material of FIG. 6 viewed from the side.

FIG. 8 is a perspective view of a conventional rubber interior material.

9 is a perspective view of the rubber interior material of FIG. 8 taken along a center line from directly above.

FIG. 10 is a cross-sectional view of the radiopharmaceutical liquid storage shielding container including the rubber interior material of FIG.

11 is a transverse cross-sectional view of the radioactive drug solution container pulled out from the shielding container of FIG.

[Explanation of symbols]

 1: Interior material 2: Shielding container engaging part 3: Chemical solution container insertion part 4: Chemical solution container fixing part 5: Expansion notch 6: Chemical solution container fixing piece 7: Shielding container with interior material 8: Container body 8a: Step 9: Exterior container 9a: Circular groove 10: Container body 11: Lid 11a: Step 12: Exterior container 13: Lid 14: Storage container for radioactive chemical solution container 15: Radioactive chemical solution storage shield container 16: Radioactive chemical solution container 17: Absorption paper 18: Elastic ring 19: Rubber interior material 19a: Inner surface of interior material 20: Radiation shielding member 21: Chemical solution container 22: Absorption paper

Claims (8)

[Claims] 1. An interior material for a shielding container for accommodating a radioactive chemical liquid container containing a radioactive chemical liquid, the shielding container engaging part engaging with an opening of a container body, and adjoining the shielding container engaging part. A liquid medicine container insertion portion having an inner diameter larger than the body diameter of the radioactive liquid medicine container, and a substantially truncated cone shape formed downward from the liquid medicine container insertion portion, and provided with a plurality of notches for expansion from the lower end edge thereof An interior having a drug solution container fixing part made of a drug solution container fixing piece, wherein the length (L) of the drug solution container fixing part is 1/2 to 1 of the trunk length of the radioactive drug solution container. Material. 2. The interior material according to claim 1, wherein the drug solution container fixing portion is composed of 3 to 12 drug solution container fixing pieces. 3. The interior material according to claim 1, wherein the drug solution container fixing portion is composed of 6 to 8 drug solution container fixing pieces. 4. The interior material according to any one of claims 1 to 3, which is made of plastic. 5. The interior material according to any one of claims 1 to 4, wherein a stretchable ring is attached to the outer periphery of the liquid medicine container fixing portion. 6. The interior material according to any one of claims 1 to 5, wherein an inner surface of the fixed portion of the chemical liquid container is subjected to an anti-slip process. 7. A shielding container provided with the interior material according to any one of claims 1 to 6. 8. A radiopharmaceutical solution storage and shielding container in which the radiopharmaceutical solution container containing the radiopharmaceutical solution is stored in the shielding container according to claim 7.