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JP4095106B2 - Method for producing interior material for packaging of radionuclide elution device - Google Patents

Method for producing interior material for packaging of radionuclide elution device Download PDF

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JP4095106B2
JP4095106B2 JP2007066463A JP2007066463A JP4095106B2 JP 4095106 B2 JP4095106 B2 JP 4095106B2 JP 2007066463 A JP2007066463 A JP 2007066463A JP 2007066463 A JP2007066463 A JP 2007066463A JP 4095106 B2 JP4095106 B2 JP 4095106B2
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wall portion
pad
interior material
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radionuclide
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JP2007191222A (en
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博彦 山内
光也 村上
規宏 岡部
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Nihon Medi Physics Co Ltd
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Description

本発明は、輸送箱内に比重が大きく重量のある放射性核種溶出装置を安定に保持するための包装用内装材の製造方法に関する。 The present invention relates to a method for manufacturing a packaging interior material for stably holding a radionuclide elution apparatus having a large specific gravity and a heavy weight in a transport box.

過テクネチウム酸ナトリウム(99mTc)注射液等の放射性医薬を医療現場で製造する際に用いられる放射性核種溶出装置として、図6に示すものが知られている。図6において、aはプラスチック製容器本体、bはプラスチック製蓋体、cは蓋体bに形成された生理食塩液バイアル挿入凹部、dは無菌減圧バイアル挿入凹部、eは容器本体a内に配設された放射性核種溶出カラム、fは生理食塩液流通管、gは溶出液流通管を示す。   As a radionuclide elution apparatus used when manufacturing a radiopharmaceutical such as sodium pertechnetate (99mTc) injection at a medical site, the one shown in FIG. 6 is known. In FIG. 6, a is a plastic container body, b is a plastic lid, c is a physiological saline vial insertion recess formed in the lid b, d is a sterile decompression vial insertion recess, and e is placed in the container body a. An installed radionuclide elution column, f is a physiological saline flow tube, and g is an eluent flow tube.

本装置を用いて放射性医薬を調製する場合、凹部cに生理食塩液バイアルjを挿入した後、凹部dに無菌減圧バイアルkを挿入する。これにより、生理食塩液バイアルj中の生理食塩液がニードルhから吸引され、流通管fを通ってカラムe内に入り、カラムe内で生理食塩液に放射性核種が溶出された後、溶出液が流通管gを通ってニードルiから無菌減圧バイアルk内に入る。そして、得られた放射性核種を薬学的に許容される担体と混合することにより放射性医薬が得られる。   When preparing a radiopharmaceutical using this apparatus, after inserting the physiological saline vial j into the recessed part c, the sterile decompression vial k is inserted into the recessed part d. Thereby, the physiological saline in the physiological saline vial j is sucked from the needle h, enters the column e through the flow pipe f, and the radionuclide is eluted in the physiological saline in the column e. Enters the sterile vacuum vial k from the needle i through the flow tube g. A radiopharmaceutical is obtained by mixing the obtained radionuclide with a pharmaceutically acceptable carrier.

前述した放射性核種溶出装置では、容器本体a内に鉛等の放射線遮蔽金属からなる比重の大きい金属ブロックを装填し、この金属ブロックに形成したカラム収納部にカラムeを収納している。したがって、この放射性核種溶出装置は、高さ21cm、幅13cm、奥行き11cm程度の大きさであるにもかかわらず、重量は約10kgと非常に重い。   In the radionuclide elution apparatus described above, a metal block having a high specific gravity made of a radiation shielding metal such as lead is loaded in the container body a, and the column e is stored in a column storage portion formed in the metal block. Therefore, this radionuclide elution apparatus has a very heavy weight of about 10 kg although it is about 21 cm high, 13 cm wide and 11 cm deep.

そのため、従来より、重量物である前述した放射性核種溶出装置を輸送箱内に収納するに際しては、所定形状に成形した発泡スチロール製のかなり強度の高い包装用内装材を輸送箱内に装填し、この内装材で放射性核種溶出装置を保持するようにしており、これにより輸送時における輸送箱の落下、転倒等によって放射性核種溶出装置が破損し、放射性物質が漏洩することを防止している。   Therefore, conventionally, when the above-mentioned radionuclide elution device, which is a heavy object, is stored in the transport box, a packaging interior material made of styrene foam molded into a predetermined shape is loaded into the transport box. The radionuclide elution device is held by the interior material, and this prevents the radionuclide elution device from being damaged due to dropping or overturning of the transport box during transportation, and leakage of radioactive materials.

しかし、これまで放射性核種溶出装置を輸送箱に収納する際に使用されてきた発泡スチロール製の内装材は、下記の点で十分に満足できるものではなかった。
(1)近年、発泡スチロールの焼却廃棄処分は高熱を発生する点で規制されつつあり、実際、福井県の条例においては発泡スチロールを焼却廃棄することができなくなった。そのため、焼却したときに炉に損傷を与えるような高熱を発生しない材質、あるいは焼却以外の方法によって廃棄できる材質からなる包装用内装材が要望されている。
(2)発泡スチロールからなる内装材は、エコロジーの観点から、将来的には包装廃棄物リサイクル法等によって回収することが必要となる。したがって、発泡スチロールからなる内装材を用いた場合、該内装材の回収のための費用や作業が必要となり、コストの上昇を招くことになる。
(3)発泡スチロールからなる内装材は静電気を帯電しやすく、帯電防止剤を練り込んだり塗布したりすることが困難で粉塵等を吸着しやすいため、医薬品や医療用器材の包装資材としては薬事法におけるGMP(good manufacturing practice)の観点から好ましくない。
(4)発泡スチロールからなる内装材は嵩高である上、積み重ねることが難しく、大きな在庫スペース及び廃棄スペースを必要とするため、資材の減容化の観点から好ましくない。
However, the polystyrene-made interior material that has been used to house the radionuclide elution device in the transport box until now has not been fully satisfactory in the following respects.
(1) In recent years, incineration disposal of foamed polystyrene has been regulated in terms of generating high heat, and in fact, it has become impossible to incinerate foamed polystyrene in the Fukui Prefecture regulations. Therefore, a packaging interior material made of a material that does not generate high heat that damages the furnace when incinerated, or a material that can be discarded by a method other than incineration is desired.
(2) From the viewpoint of ecology, interior materials made of polystyrene foam will need to be collected by the Packaging Waste Recycling Law in the future. Therefore, when an interior material made of polystyrene foam is used, costs and work for recovering the interior material are required, leading to an increase in cost.
(3) Interior materials made of foamed polystyrene are easily charged with static electricity, difficult to knead and apply antistatic agents, and easily adsorb dust, etc. Is not preferable from the viewpoint of GMP (good manufacturing practice).
(4) The interior material made of expanded polystyrene is bulky, difficult to stack, and requires a large inventory space and disposal space, which is not preferable from the viewpoint of reducing the volume of materials.

本発明は、上記事情に鑑みてなされたもので、比重が大きく重量のある放射性核種溶出装置の保護の点で十分な能力を有し、しかも前述した発泡スチロール製の内装材が有する種々の問題点を解消することが可能な包装用内装材の製造方法を提供することを目的とする。 The present invention has been made in view of the above circumstances, has a sufficient capability in terms of protection of a radionuclide elution device having a large specific gravity and a heavy weight, and various problems that the above-mentioned interior material made of polystyrene foam has. It aims at providing the manufacturing method of the interior material for packaging which can eliminate.

発明は、上記目的を達成するため、上パッド、下パッド及び衝撃吸収部を接合した下側部材と、上側部材とを用いた放射性核種溶出装置包装用内装材の製造方法であって、
前記下側部材の上パッドとして、輸送箱の内周面に相応する形状を有する外壁部と、外壁部の内側に設けられ、外壁部の上部と一体に形成された内壁部とを有し、内壁部の中央には放射性核種溶出装置の下部が挿入される収容凹部が形成され、外壁部及び内壁部にはそれぞれリブが形成されたものを用い、
前記下側部材の下パッドとして、輸送箱の内周面に相応する形状を有する外壁部と、外壁部の内側に設けられ、外壁部の上部と一体に形成された内壁部とを有し、内壁部の中央には前記上パッドの収容凹部を形成する上パッドの突出部の下部が挿入される収容凹部が形成され、外壁部及び内壁部にはそれぞれリブが形成されたものを用い、
前記上側部材として、輸送箱の内周面に相応する形状を有する外壁部と、外壁部の内側に設けられ、外壁部の下部と一体に形成された内壁部とを有し、内壁部の中央には放射性核種溶出装置の上端部が挿入される収容凹部が形成されたものを用い、
前記上パッドの突出部を前記下パッドの収容凹部内に挿入し、前記突出部の底壁下面と前記収容凹部の底壁上面とを接合して連結することにより、上パッドの外壁部及び下パッドの外壁部によって下側部材の外壁部を構成し、上パッドの内壁部及び下パッドの内壁部によって下側部材の内壁部を構成し、上パッドの収容凹部及び下パッドの収容凹部によって下側部材の収容凹部を構成するとともに、前記衝撃吸収部の上面を下パッドの収容凹部の底壁下面に接合することを特徴とする放射性核種溶出装置包装用内装材の製造方法を提供する。
In order to achieve the above object, the present invention is a method for producing an interior material for a radionuclide elution device packaging using an upper pad, a lower pad and a lower member joined to an impact absorbing portion, and an upper member,
As an upper pad of the lower member, an outer wall portion having a shape corresponding to the inner peripheral surface of the shipping box, an inner wall portion provided inside the outer wall portion and integrally formed with the upper portion of the outer wall portion, In the center of the inner wall part, an accommodation recess into which the lower part of the radionuclide elution apparatus is inserted is formed, and the outer wall part and the inner wall part are each formed with a rib,
As the lower pad of the lower member, it has an outer wall portion having a shape corresponding to the inner peripheral surface of the shipping box, an inner wall portion provided inside the outer wall portion and formed integrally with the upper portion of the outer wall portion, In the center of the inner wall portion is formed a receiving recess into which the lower part of the upper pad protrusion forming the upper pad receiving recess is inserted, and the outer wall portion and the inner wall portion are each formed with a rib,
The upper member includes an outer wall portion having a shape corresponding to the inner peripheral surface of the shipping box, an inner wall portion provided inside the outer wall portion and integrally formed with a lower portion of the outer wall portion, and a center of the inner wall portion. Is used in which an accommodation recess into which the upper end of the radionuclide elution apparatus is inserted is formed,
By inserting the protruding portion of the upper pad into the receiving recess of the lower pad and joining and connecting the bottom wall lower surface of the protruding portion and the bottom wall upper surface of the receiving recess, The outer wall portion of the lower member is constituted by the outer wall portion of the pad, the inner wall portion of the lower member is constituted by the inner wall portion of the upper pad and the inner wall portion of the lower pad, and the lower portion is accommodated by the receiving recessed portion of the upper pad and the lower recessed portion. Provided is a method for producing an interior material for packaging of a radionuclide eluting device, wherein the housing member constitutes a housing recess of the side member, and the upper surface of the impact absorbing portion is joined to the lower surface of the bottom wall of the housing recess of the lower pad.

本発明により得られる内装材によれば、放射性核種溶出装置が下側部材と上側部材との間にほぼ動かない状態で保持されるので、輸送時等において放射性核種溶出装置が良好に保護される。また、本発明により得られる内装材においては、下側部材の収容凹部の底部に前述した衝撃吸収部が設けられているため、輸送箱の落下等によって収容凹部内の重量のある放射性核種溶出装置から収容凹部の壁部(周壁及び底壁)に大きな衝撃が加わった場合でも、この衝撃の一部又は全部が上記衝撃吸収部に吸収される。したがって、輸送箱が落下したような場合でも、内装材は容易に破損することがなく、収納された放射性核種溶出装置は下側部材と上側部材との間に安定に保持され、良好に保護されるものである。 According to the interior material obtained by the present invention, the radionuclide eluting device is held between the lower member and the upper member so as not to move, so that the radionuclide eluting device is well protected during transportation. . Further, in the interior material obtained by the present invention, since the above-mentioned shock absorbing portion is provided at the bottom of the housing recess of the lower member, the radionuclide elution apparatus having a heavy weight in the housing recess due to dropping of the transport box or the like Even when a large impact is applied to the wall portions (the peripheral wall and the bottom wall) of the housing recess, a part or all of the impact is absorbed by the impact absorbing portion. Therefore, even when the shipping container is dropped, the interior material is not easily damaged, and the stored radionuclide elution device is stably held between the lower member and the upper member and is well protected. Is.

本発明において、内装材に設ける衝撃吸収部の形状、構造に限定はなく、落下時等に放射性核種溶出装置から収容凹部の壁部に加わる衝撃の一部又は全部を吸収し、内装材が大きく破損することを防止できるものであればどのような形状、構造であってもよい。このような衝撃吸収部の好適な態様としては、例えば後述する実施形態に示すように、収容凹部の底壁部の下面に中空略短軸円柱状のプラスチック成形体を固定し、該プラスチック成形体を衝撃吸収部とする態様が挙げられる。 In the present invention , there is no limitation on the shape and structure of the shock absorbing portion provided in the interior material, and the interior material is large by absorbing part or all of the impact applied to the wall portion of the housing recess from the radionuclide elution device when dropped. Any shape and structure may be used as long as they can be prevented from being damaged. As a suitable aspect of such an impact absorbing portion, for example, as shown in an embodiment described later, a hollow substantially short axis cylindrical plastic molded body is fixed to the lower surface of the bottom wall portion of the housing recess, and the plastic molded body The aspect which uses as a shock-absorbing part is mentioned.

本発明において、内装材を構成する下側部材及び上側部材は、肉厚が0.2〜3.0mmの比較的薄肉のプラスチック成形体によって形成する。下側部材及び上側部材を形成するプラスチックの種類に特に限定はないが、焼却したときに炉を傷めるような高熱及び毒性ガスを発生しないプラスチック又は生分解性プラスチックであることが好ましい。前者のプラスチックを用いた場合には内装材を問題なく焼却廃棄することが可能となり、また後者の生分解性プラスチックを用いた場合には内装材を土中に埋めることなどによって廃棄することが可能となるため、いずれの場合も廃棄物処理コストを下げることができるという利点が得られる。 In the present invention , the lower member and the upper member constituting the interior material are formed by a relatively thin plastic molded body having a thickness of 0.2 to 3.0 mm. The type of plastic forming the lower member and the upper member is not particularly limited, but is preferably a plastic or biodegradable plastic that does not generate high heat and toxic gases that would damage the furnace when incinerated. When the former plastic is used, the interior material can be incinerated without problems, and when the latter biodegradable plastic is used, it can be disposed of by burying the interior material in the soil. Therefore, in any case, there is an advantage that the waste disposal cost can be reduced.

焼却したときに炉を傷めるような高熱及び毒性ガスを発生しないプラスチックとしては、例えば、炭酸カルシウム含有ポリエチレン等の炭酸カルシウム含有ポリオレフィンを好適に使用することができる。この場合、炭酸カルシウム含有ポリオレフィン中の炭酸カルシウム含有量に限定はないが、20〜40重量%、特に30重量%程度とすることが適当である。また、生分解性プラスチックとしては、例えば、コーンスターチ樹脂(商品名:バイオポール)等を使用することができる。   For example, a calcium carbonate-containing polyolefin such as calcium carbonate-containing polyethylene can be suitably used as the plastic that does not generate high heat and toxic gas that damages the furnace when incinerated. In this case, the calcium carbonate content in the calcium carbonate-containing polyolefin is not limited, but it is suitably 20 to 40% by weight, particularly about 30% by weight. Moreover, as a biodegradable plastic, corn starch resin (brand name: Biopol) etc. can be used, for example.

本発明においては、下側部材及び上側部材を形成するプラスチックに帯電防止剤を練り込む手段、又は、下側部材及び上側部材に帯電防止剤を塗布する手段を採用することができ、これにより各部材が静電気を帯電して粉塵等を吸着することを防止することができる。この場合、帯電防止剤としては、例えば、アニオン活性剤、カチオン活性剤等の界面活性剤を用いることができる。   In the present invention, means for kneading the antistatic agent into the plastic forming the lower member and the upper member, or means for applying the antistatic agent to the lower member and the upper member can be adopted. The member can be prevented from being charged with static electricity and adsorbing dust or the like. In this case, as the antistatic agent, for example, a surfactant such as an anionic surfactant or a cationic surfactant can be used.

また、本発明においては、下側部材と上側部材、下側部材同士又は上側部材同士を積み重ね可能とすることが好ましく、これにより内装材の在庫時及び廃棄時における減容化を図って内装材の在庫スペース及び廃棄スペースを縮小することができるとともに、内装材の回収の容易化及び低コスト化を達成することができる。この場合、下側部材及び上側部材の一方の部材の内側に他方の部材を挿入可能としたり、下側部材の内側に他の下側部材を挿入可能としたり、上側部材の内側に他の上側部材を挿入可能としたりすることにより、一層の減容化を図ることができる。   Further, in the present invention, it is preferable that the lower member and the upper member, the lower members or the upper members can be stacked, so that the interior material can be reduced in volume at the time of inventory and disposal of the interior material. Inventory space and waste space can be reduced, and interior materials can be easily recovered and cost can be reduced. In this case, the other member can be inserted inside one member of the lower member and the upper member, the other lower member can be inserted inside the lower member, and the other upper member can be inserted inside the upper member. The volume can be further reduced by allowing the member to be inserted.

本発明において、下側部材及び上側部材は、それぞれ単一のプラスチック成形体によって形成してもよく、複数のプラスチック成形体を接合することにより形成してもよい。また、下側部材及び上側部材の成形法に限定はなく、射出成形法、圧縮成形法、真空成形法、ブロー成形法等の任意の成形法によって成形することができる。   In the present invention, the lower member and the upper member may each be formed by a single plastic molded body, or may be formed by joining a plurality of plastic molded bodies. Moreover, there is no limitation on the molding method of the lower member and the upper member, and the molding can be performed by an arbitrary molding method such as an injection molding method, a compression molding method, a vacuum molding method, or a blow molding method.

以上説明したように、本発明により得られる包装用内装材は、比重が大きく重量のある放射性核種溶出装置の保護の点で十分な能力を有し、しかも発泡スチロール製の内装材が有する種々の問題点を解消することが可能なものである。 As described above, the packaging interior material obtained by the present invention has sufficient capability in terms of protection of a radionuclide elution apparatus having a large specific gravity and a heavy weight, and various problems that the interior material made of polystyrene foam has. It is possible to eliminate the point.

図1〜図5は本発明により得られる包装用内装材の一実施形態を示すもので、この内装材は輸送箱内に図6に示したような放射性核種溶出装置及びバイアル箱(生理食塩液バイアルや無菌減圧バイアルを入れた箱)を収納する際に使用されるものである。図1は内装材全体の正面図、図2は斜め上方から見た下側部材の斜視図、図3は斜め下方から見た下側部材の斜視図、図4は下側部材に放射性核種溶出装置及びバイアル箱を装着した状態を示す斜め上方から見た斜視図、図5は下側部材と上側部材との間に放射性核種溶出装置及びバイアル箱を保持した状態を示す断面図である。 1 to 5 show an embodiment of a packaging interior material obtained by the present invention. This interior material is a radionuclide elution apparatus and vial box (physiological saline solution) as shown in FIG. Vials and boxes containing sterile vacuum vials). 1 is a front view of the entire interior material, FIG. 2 is a perspective view of the lower member as viewed from obliquely above, FIG. 3 is a perspective view of the lower member as viewed from obliquely below, and FIG. 4 is a radionuclide elution from the lower member. FIG. 5 is a cross-sectional view showing a state in which the radionuclide elution apparatus and the vial box are held between the lower member and the upper member.

本実施形態の内装材は、下側部材2と上側部材4とから構成されている。下側部材2は、別々に成形した上パッド6、下パッド8及び衝撃吸収部10を接合したもの、上側部材4は単一の成形体からなるものであり、これら上パッド6、下パッド8、衝撃吸収部10及び上側部材4はいずれも炭酸カルシウム含有ポリエチレン(炭酸カルシウム含有量30重量%)によって形成されている。この場合、上パッド6、下パッド8、上側部材4は真空成形法で成形され、衝撃吸収部10はブロー成形法で成形されている。また、各成形体の肉厚は1.2mm程度であり、プラスチック中には帯電防止剤が練り込まれている。   The interior material of the present embodiment is composed of a lower member 2 and an upper member 4. The lower member 2 is formed by joining the upper pad 6, the lower pad 8 and the impact absorbing portion 10 which are separately molded, and the upper member 4 is formed of a single molded body. The shock absorbing part 10 and the upper member 4 are both made of calcium carbonate-containing polyethylene (calcium carbonate content of 30% by weight). In this case, the upper pad 6, the lower pad 8, and the upper member 4 are formed by a vacuum forming method, and the impact absorbing portion 10 is formed by a blow forming method. The thickness of each molded body is about 1.2 mm, and an antistatic agent is kneaded in the plastic.

下側部材2の上パッド6は、輸送箱の内周面に相応する形状を有するほぼ垂直な四角枠状の外壁部12と、外壁部12の内側に設けられ、外壁部12の上部と一体に形成された内壁部14とを有する。内壁部14の中央には、放射性核種溶出装置16の下部が挿入される略四角形の大型の収容凹部18が形成されている。また、収容凹部18の各辺部の外側方には、バイアル箱20の下部が挿入される4つの小型の収容凹部22が形成されている。さらに、内壁部14の各隅部には、上側部材4の係合凹部(後述)に係合する4つの係合凸部24が突設されている。また、外壁部12及び内壁部14には、上パッド6の強度を向上させるための多数のリブ26が形成されている。   The upper pad 6 of the lower member 2 is provided on the inner side of the outer wall portion 12 and a substantially vertical rectangular frame-like outer wall portion 12 having a shape corresponding to the inner peripheral surface of the shipping box, and is integrated with the upper portion of the outer wall portion 12. And an inner wall portion 14 formed on the inner wall 14. In the center of the inner wall portion 14, a substantially rectangular large-sized accommodation recess 18 into which the lower portion of the radionuclide elution device 16 is inserted is formed. Further, four small receiving recesses 22 into which the lower part of the vial box 20 is inserted are formed on the outer sides of the respective side portions of the receiving recess 18. Further, at each corner portion of the inner wall portion 14, four engaging convex portions 24 that project into engaging concave portions (described later) of the upper member 4 are projected. The outer wall portion 12 and the inner wall portion 14 are formed with a large number of ribs 26 for improving the strength of the upper pad 6.

下側部材2の下パッド8は、輸送箱の内周面に相応する形状を有するほぼ垂直な四角枠状の外壁部28と、外壁部28の内側に設けられ、外壁部28の上部と一体に形成された内壁部30とを有する。内壁部30の中央には略四角形の収容凹部32が形成され、前記収容凹部18を形成する上パッド6の突出部19の下部が収容凹部32内に挿入されるようになっている。また、外壁部28及び内壁部30には、下パッド8の強度を向上させるための多数のリブ34が形成されている。上パッド6と下パッド8とは、上パッド6の突出部19を下パッド8の収容凹部32内に挿入し、突出部19の底壁下面と収容凹部32の底壁上面とを両面粘着テープ、接着剤等で接合することにより連結されている。   The lower pad 8 of the lower member 2 is provided on the inner side of the outer wall portion 28 and a substantially vertical rectangular frame-shaped outer wall portion 28 having a shape corresponding to the inner peripheral surface of the shipping box, and is integrated with the upper portion of the outer wall portion 28. And an inner wall portion 30 formed on the inner wall. A substantially rectangular accommodating recess 32 is formed at the center of the inner wall portion 30, and the lower portion of the protruding portion 19 of the upper pad 6 forming the accommodating recess 18 is inserted into the accommodating recess 32. The outer wall portion 28 and the inner wall portion 30 are formed with a large number of ribs 34 for improving the strength of the lower pad 8. The upper pad 6 and the lower pad 8 are a double-sided adhesive tape in which the protruding portion 19 of the upper pad 6 is inserted into the receiving recess 32 of the lower pad 8 and the bottom wall lower surface of the protruding portion 19 and the bottom wall upper surface of the receiving recess 32 are They are connected by bonding with an adhesive or the like.

下側部材2の衝撃吸収部10は中空略短軸円柱状のもので、その下面周縁部には下方に膨出した膨出部36が形成され、該膨出部36によって衝撃吸収部10の強度向上が図られている。衝撃吸収部10の上面は、下パッド8の収容凹部32の底壁下面に両面粘着テープ、接着剤等によって接合されている。また、衝撃吸収部10の下端及び下パッド8の外壁部28の下端はほぼ同一平面上に存在しており、下側部材2を輸送箱内に装填したときに、下パッド8の外壁部28の下端及び衝撃吸収部10の下端が輸送箱の底面に接触又は近接するようになっている。   The shock absorbing portion 10 of the lower member 2 has a hollow, substantially short-axis cylindrical shape, and a bulging portion 36 that bulges downward is formed on the periphery of the lower surface thereof. The strength is improved. The upper surface of the shock absorber 10 is joined to the lower surface of the bottom wall of the housing recess 32 of the lower pad 8 by a double-sided adhesive tape, an adhesive, or the like. Further, the lower end of the shock absorbing portion 10 and the lower end of the outer wall portion 28 of the lower pad 8 are substantially on the same plane, and the outer wall portion 28 of the lower pad 8 is loaded when the lower member 2 is loaded into the transport box. And the lower end of the shock absorber 10 are in contact with or close to the bottom surface of the transport box.

この場合、本実施形態の内装材においては、上パッド6の外壁部12及び下パッド8の外壁部28によって下側部材2の外壁部が構成され、上パッド6の内壁部14及び下パッド8の内壁部30によって下側部材2の内壁部が構成され、上パッド6の収容凹部18及び下パッド8の収容凹部32によって下側部材2の収容凹部が構成された状態となっている。   In this case, in the interior material of this embodiment, the outer wall portion 12 of the upper pad 6 and the outer wall portion 28 of the lower pad 8 constitute the outer wall portion of the lower member 2, and the inner wall portion 14 of the upper pad 6 and the lower pad 8. The inner wall portion 30 of the lower member 2 is configured by the inner wall portion 30, and the receiving recess portion 18 of the upper pad 6 and the receiving recess portion 32 of the lower pad 8 form the receiving recess portion of the lower member 2.

また、上側部材4は、輸送箱の内周面に相応する形状を有するほぼ垂直な四角枠状の外壁部38と、外壁部38の内側に設けられ、外壁部38の下部と一体に形成された内壁部40とを有する。内壁部40の中央には、放射性核種溶出装置16の上端部が挿入される略四角形の収容凹部42が形成されている。また、収容凹部42の各辺部の外側方には、バイアル箱20の上端部が挿入される4つの収容凹部44が形成されている。さらに、内壁部40の各隅部には、前述した上パッド6の係合凸部24と係合する4つの係合凹部(図示せず)が設けられている。また、外壁部38及び内壁部40には、上側部材4の強度を向上させるための多数のリブ46が形成されている。この上側部材4は、天地を逆にすることにより、内部に上パッド6を挿入した状態で下側部材2に重ね合わせることができるものである。   Further, the upper member 4 is provided on the inner side of the outer wall portion 38 and a substantially vertical rectangular frame-like outer wall portion 38 having a shape corresponding to the inner peripheral surface of the shipping box, and is formed integrally with the lower portion of the outer wall portion 38. And an inner wall portion 40. In the center of the inner wall portion 40, a substantially rectangular accommodating recess 42 into which the upper end portion of the radionuclide elution device 16 is inserted is formed. In addition, four receiving recesses 44 into which the upper ends of the vial boxes 20 are inserted are formed on the outer sides of the respective side portions of the receiving recess 42. Furthermore, four engagement recesses (not shown) that engage with the engagement protrusions 24 of the upper pad 6 described above are provided at each corner of the inner wall portion 40. The outer wall 38 and the inner wall 40 are formed with a large number of ribs 46 for improving the strength of the upper member 4. The upper member 4 can be superposed on the lower member 2 with the upper pad 6 inserted therein by reversing the top and bottom.

本実施形態の内装材を用いて段ボール紙等からなる四角形の輸送箱に放射性核種溶出装置及びバイアル箱を収納する場合、図5に示すように、輸送箱50(一点鎖線で示す)内に下側部材2を装填し、上パッド6の収容凹部18に放射性核種溶出装置16、収容凹部22にバイアル箱20を挿入した後、係合凸部24と係合凹部(図示せず)とを係合させた状態で下側部材2上に上側部材4を配置し、さらに輸送箱50の上部開口部を閉じるもので、これにより下側部材2と上側部材4との間に放射性核種溶出装置16及びバイアル箱20がほぼ動かない状態で保持される。   When the radionuclide elution device and the vial box are stored in a rectangular transport box made of corrugated cardboard using the interior material of the present embodiment, as shown in FIG. After the side member 2 is loaded and the radionuclide elution device 16 is inserted into the receiving recess 18 of the upper pad 6 and the vial box 20 is inserted into the receiving recess 22, the engaging protrusion 24 and the engaging recess (not shown) are engaged. The upper member 4 is arranged on the lower member 2 in a combined state, and the upper opening of the transport box 50 is further closed, whereby the radionuclide elution device 16 is interposed between the lower member 2 and the upper member 4. And the vial box 20 is held in a state of not moving.

[実験1]
強耐水性段ボール紙からなる四角形の輸送箱の内部に、炭酸カルシウム含有ポリエチレン(炭酸カルシウム含有量30重量%)からなる前記実施形態の包装用内装材(実施例の内装材)を用いて1個の放射性核種溶出装置(重量約10kg)及び4個のバイアル箱を収納し、下記輸送試験及び80cm落下試験を行った。
[Experiment 1]
One using the packaging interior material (interior material of the example) of the above embodiment composed of calcium carbonate-containing polyethylene (calcium carbonate content 30% by weight) inside a rectangular transport box made of strong water-resistant corrugated paper. The radionuclide elution apparatus (weight: about 10 kg) and four vial boxes were housed, and the following transportation test and 80 cm drop test were performed.

(輸送試験)
放射性核種溶出装置及びバイアル箱を収納して封緘した輸送箱(1群:3検体)を千葉県から福岡及び札幌にそれぞれ空輸し、外装状態及び内容品(放射性核種溶出装置及びバイアル箱)の状態を観察した。さらに、同じ輸送箱をトラックに積載して福岡及び札幌から千葉県に陸路により返送し、再度外装状態及び内容品の状態を観察した。
(Transport test)
The radionuclide elution device and the transport box (1 group: 3 samples) sealed and housed in the vial box are transported by air from Chiba Prefecture to Fukuoka and Sapporo respectively, and the exterior and contents (radionuclide elution device and vial box) Was observed. Furthermore, the same transport box was loaded on a truck and returned from Fukuoka and Sapporo to Chiba Prefecture by land, and the exterior and contents were observed again.

その結果、往路(空輸)及び復路(トラック便)のいずれにおいても、外装状態及び内容品の状態に問題は見られなかった。したがって、本実施例の内装材は、輸送時における内容品の保護の点で十分な能力を持つことが確認された。   As a result, no problem was found in the exterior condition and the condition of the contents in both the outbound route (air transport) and the return route (truck service). Therefore, it was confirmed that the interior material of the present example has sufficient capability in terms of protecting the contents during transportation.

(80cm落下試験)
放射性核種溶出装置及びバイアル箱を収納して封緘した輸送箱(1群:3検体)を底面、側面又は天面を下に向けて80cmの高さから床(表面エポキシ塗装)の上に落下させ、内装材及び内容品(放射性核種溶出装置及びバイアル箱)の状態を観察した。
(80cm drop test)
The transport box (1 group: 3 specimens) sealed with the radionuclide elution device and vial box is dropped onto the floor (surface epoxy coating) from a height of 80 cm with the bottom, side or top facing down. The conditions of the interior materials and the contents (the radionuclide elution device and the vial box) were observed.

その結果、底面、側面、天面のいずれを下に向けて落下させた場合においても、内装材には軽微な亀裂やへこみが生じた程度であり、内容品は内装材によって十分に保護されており、内容品の状態に問題は見られなかった。したがって、本実施例の内装材は、落下時における内容品の保護の点で十分な能力を持つことが確認された。   As a result, even if the bottom, side, or top surface is dropped downward, the interior material is only slightly cracked or dented, and the contents are sufficiently protected by the interior material. There was no problem with the condition of the contents. Therefore, it was confirmed that the interior material of the present example has sufficient capability in terms of protecting the contents when dropped.

[実験2]
また、強耐水性段ボール紙からなる四角形の輸送箱の内部に、炭酸カルシウム含有ポリエチレン(炭酸カルシウム含有量30重量%)からなる前記実施形態の包装用内装材(実施例の内装材)を用いて1個の放射性核種溶出装置(重量約10kg)を収納し、下記A型輸送物適合試験を行った。
[Experiment 2]
In addition, using the packaging interior material of the above-described embodiment made of calcium carbonate-containing polyethylene (calcium carbonate content of 30% by weight) inside a rectangular transport box made of strong water-resistant corrugated paper, One radionuclide elution apparatus (weight: about 10 kg) was housed and the following A-type package conformity test was conducted.

[A型輸送物適合試験]
放射性核種溶出装置及びバイアル箱を収納して封緘した輸送箱について、平成2年科学技術庁告示7号の試験方法に則り、A型輸送物としての適合性を調べた。この場合、下記に示す水吹付け試験を行った後、圧縮試験、落下試験及び貫通試験をそれぞれ行った。
[Type A package conformity test]
The transport box sealed with the radionuclide elution device and the vial box was examined for suitability as an A-type package according to the test method of Notification No. 7 of the Science and Technology Agency in 1990. In this case, after performing the water spray test shown below, a compression test, a drop test, and a penetration test were performed.

(水吹付け試験)
風の影響を極力除外した降雨実験室にて、輸送箱に約50mm/hrの雨を1時間降らせた。その後10分間放置し、輸送箱を手に取ったときに水が流れるようであれば手で振って水を切り、さらに紙製タオルで輸送箱表面の水を拭き取った。
(Water spray test)
In a rain test room where the influence of wind was excluded as much as possible, rain of about 50 mm / hr was applied to the transport box for 1 hour. Then, the container was left for 10 minutes. If water was flowing when the shipping box was picked up, it was shaken by hand to drain the water, and the surface of the shipping box was wiped off with a paper towel.

(圧縮試験)
水吹付け試験後、1時間以内に本試験を行った。本試験では、輸送箱を床に置き、その上に銅板(厚さ5mm、縦500mm、横500mm、重量6.6kg)を載せた後、銅板の上に鉛ブロック(厚さ50mm、縦100mm、横200mm、重量11.3kg)を14個積み上げた(総重量165kg)。この状態を24時間維持した後、輸送箱を開けて内装材の状態を調べた。
(Compression test)
This test was conducted within 1 hour after the water spray test. In this test, a transport box is placed on the floor, and a copper plate (thickness 5 mm, length 500 mm, width 500 mm, weight 6.6 kg) is placed thereon, and then a lead block (thickness 50 mm, length 100 mm, 14 pieces (200 mm wide, 11.3 kg weight) were stacked (total weight 165 kg). After maintaining this state for 24 hours, the shipping box was opened and the state of the interior material was examined.

(落下試験)
水吹付け試験後、1時間以内に本試験を行った。本試験では、コンクリート床面から輸送箱最下部までの距離が1.2mになるように輸送箱を保持し、輸送箱のもっとも弱いと思われる部分(下側の角)が床面に衝突するように床面上に輸送箱を落下させた。その後、輸送箱を開けて内装材の状態を調べた。
(Drop test)
This test was conducted within 1 hour after the water spray test. In this test, the transport box is held so that the distance from the concrete floor to the bottom of the transport box is 1.2 m, and the weakest part (lower corner) of the transport box collides with the floor. The shipping box was dropped on the floor. Thereafter, the shipping box was opened and the condition of the interior material was examined.

(貫通試験)
水吹付け試験後、1時間以内に本試験を行った。本試験では、輸送箱の上面から貫通棒(重量6kg、直径3.2cmで先端は半球状、ステンレススチール製)の最下部までの距離を1.7mにとり、輸送箱の最も弱いと思われる部分(側面)に貫通棒を落下させた。その後、輸送箱を開けて内装材の状態を調べた。
(Penetration test)
This test was conducted within 1 hour after the water spray test. In this test, the distance from the upper surface of the transport box to the bottom of the penetrating rod (weight 6 kg, diameter 3.2 cm, tip hemisphere, made of stainless steel) is 1.7 m, and the part considered to be the weakest of the transport box The penetrating rod was dropped on the (side). Thereafter, the shipping box was opened and the condition of the interior material was examined.

(試験結果の判定基準)
前記告示で定められている「放射性同位元素の漏洩がないこと」に対しては、放射性核種溶出装置からカラム内の樹脂がこぼれていないことを適合の基準とした。「表面における一センチメートル線量等量率が著しく増加せず、かつ、二ミリシーベルト毎時(第七号ただし書きに該当する場合は、十ミリシーベルト毎時)を超えないこと」については、下記(1)〜(5)を適合の基準とし、目視検査、実寸測定等を行って判定した。
(1)箱から放射性核種溶出装置が飛び出さないこと。
(2)カラム及び樹脂が放射性核種溶出装置から飛び出さないこと。
(3)放射性核種溶出装置の鉛ブロックにひび割れが生じて遮蔽能力が落ちないこと。
(4)鉛ブロックが放射性核種溶出装置内に留まっていること。
(5)輸送箱の最も短くなった1辺の寸法が縮小率として9%を超えないこと。
(Criteria for test results)
For the “no radioisotope leakage” defined in the above notification, the conformity criterion was that the resin in the column did not spill from the radionuclide elution apparatus. The following shall be stated regarding the fact that the 1-cm dose equivalence rate on the surface does not increase significantly and does not exceed 2 millisieverts per hour (10 millisieverts per hour if applicable to the seventh proviso). 1) to (5) were used as the criteria for conformity, and the determination was made by visual inspection, actual size measurement, and the like.
(1) The radionuclide elution device should not pop out of the box.
(2) The column and resin should not jump out of the radionuclide elution device.
(3) The lead block of the radionuclide eluting device is cracked and the shielding ability is not reduced.
(4) The lead block remains in the radionuclide elution device.
(5) The dimension of the shortest side of the transport box should not exceed 9% as the reduction ratio.

試験結果を前記基準により判定した結果、圧縮試験、落下試験、貫通試験のいずれにおいても、前記実施例の包装用内装材を用いて放射性核種溶出装置を収納した輸送箱はA型輸送物の基準に適合することが確認された。   As a result of judging the test results based on the above criteria, the transport box containing the radionuclide elution device using the packaging interior material of the above example is the standard for A-type packages in any of the compression test, drop test, and penetration test. It was confirmed that

[実験3]
さらに、強耐水性段ボール紙からなる四角形の輸送箱の内部に、炭酸カルシウム含有ポリエチレン(炭酸カルシウム含有量30重量%)からなる前記実施形態の包装用内装材(実施例の内装材)を装填し、下記燃焼試験を行った。
[Experiment 3]
Further, the packaging interior material of the above embodiment (interior material of the example) made of calcium carbonate-containing polyethylene (calcium carbonate content 30% by weight) is loaded into a rectangular transport box made of strong water-resistant corrugated paper. The following combustion test was conducted.

(燃焼試験)
実施例の内装材を装填した収納箱を封緘し、その1個又は3個を焼却炉に入れ、燃焼状況及び煙突からの煙の排出状況を目視により観察した。この場合、十分な種火を用いて予め焼却炉全体を暖めておいた後、焼却炉内に収納箱を入れた。また、対照実験として、発泡スチロールからなる内装材を装填した収納箱を封緘し、この収納箱を同様にして焼却した。
(Combustion test)
The storage box loaded with the interior material of the example was sealed, one or three of them were put into an incinerator, and the combustion state and the state of smoke emission from the chimney were visually observed. In this case, the entire incinerator was warmed in advance using sufficient seed fire, and then the storage box was placed in the incinerator. As a control experiment, a storage box loaded with an interior material made of polystyrene foam was sealed, and this storage box was incinerated in the same manner.

その結果、実施例の内装材を装填した収納箱を1個燃焼させた場合には黒煙の発生は極めて少なく、その程度は種火の燃焼開始時とほぼ同様であった。また、同収納箱を3個燃焼させた場合には黒煙の発生が見られたが、その程度は発泡スチロールからなる内装材を装填した収納箱を1個燃焼させた場合よりもはるかに少なかった。したがって、本実施例の内装材は、焼却処分を行うことにほとんど問題がないことが確認された。   As a result, when one storage box loaded with the interior material of the example was burned, the generation of black smoke was extremely small, and the degree thereof was almost the same as at the start of combustion of the seed fire. In addition, when three storage boxes were burned, black smoke was generated, but the degree was much less than when one storage box loaded with an interior material made of polystyrene foam was burned. . Therefore, it was confirmed that the interior material of the present example has almost no problem in incineration.

本発明により得られる包装用内装材の一実施形態を示す正面図である。It is a front view which shows one Embodiment of the interior material for packaging obtained by this invention. 同内装材の下側部材を斜め上方から見た斜視図である。It is the perspective view which looked at the lower member of the interior material from diagonally upward. 同内装材の下側部材を斜め下方から見た斜視図である。It is the perspective view which looked at the lower member of the interior material from diagonally below. 同内装材の下側部材に放射性核種溶出装置及びバイアル箱を装着した状態を示す斜め上方から見た斜視図である。It is the perspective view seen from diagonally upward which shows the state which attached the radionuclide elution apparatus and the vial box to the lower side member of the interior material. 同内装材の下側部材と上側部材との間に放射性核種溶出装置及びバイアル箱を保持した状態を示す断面図である。It is sectional drawing which shows the state which hold | maintained the radionuclide elution apparatus and the vial box between the lower side member and the upper side member of the interior material. 放射性核種溶出装置の一例を示す断面図である。It is sectional drawing which shows an example of a radionuclide elution apparatus.

符号の説明Explanation of symbols

2 下側部材
4 上側部材
10 衝撃吸収部
12 外壁部
14 内壁部
16 放射性核種溶出装置
18 収容凹部
28 外壁部
30 内壁部
38 外壁部
40 内壁部
50 輸送箱
2 Lower member 4 Upper member 10 Shock absorbing portion 12 Outer wall portion 14 Inner wall portion 16 Radionuclide elution device 18 Containing recess 28 Outer wall portion 30 Inner wall portion 38 Outer wall portion 40 Inner wall portion 50 Transport box

Claims (3)

上パッド、下パッド及び衝撃吸収部を接合した下側部材と、上側部材とを用いた放射性核種溶出装置包装用内装材の製造方法であって、
前記下側部材の上パッドとして、輸送箱の内周面に相応する形状を有する外壁部と、外壁部の内側に設けられ、外壁部の上部と一体に形成された内壁部とを有し、内壁部の中央には放射性核種溶出装置の下部が挿入される収容凹部が形成され、外壁部及び内壁部にはそれぞれリブが形成されたものを用い、
前記下側部材の下パッドとして、輸送箱の内周面に相応する形状を有する外壁部と、外壁部の内側に設けられ、外壁部の上部と一体に形成された内壁部とを有し、内壁部の中央には前記上パッドの収容凹部を形成する上パッドの突出部の下部が挿入される収容凹部が形成され、外壁部及び内壁部にはそれぞれリブが形成されたものを用い、
前記上側部材として、輸送箱の内周面に相応する形状を有する外壁部と、外壁部の内側に設けられ、外壁部の下部と一体に形成された内壁部とを有し、内壁部の中央には放射性核種溶出装置の上端部が挿入される収容凹部が形成されたものを用い、
前記上パッドの突出部を前記下パッドの収容凹部内に挿入し、前記突出部の底壁下面と前記収容凹部の底壁上面とを接合して連結することにより、上パッドの外壁部及び下パッドの外壁部によって下側部材の外壁部を構成し、上パッドの内壁部及び下パッドの内壁部によって下側部材の内壁部を構成し、上パッドの収容凹部及び下パッドの収容凹部によって下側部材の収容凹部を構成するとともに、前記衝撃吸収部の上面を下パッドの収容凹部の底壁下面に接合することを特徴とする放射性核種溶出装置包装用内装材の製造方法。
A method for producing an interior material for packaging of a radionuclide eluting device using a lower member joined to an upper pad, a lower pad and a shock absorbing part, and an upper member,
As an upper pad of the lower member, an outer wall portion having a shape corresponding to the inner peripheral surface of the shipping box, an inner wall portion provided inside the outer wall portion and integrally formed with the upper portion of the outer wall portion, In the center of the inner wall part, an accommodation recess into which the lower part of the radionuclide elution apparatus is inserted is formed, and the outer wall part and the inner wall part are each formed with a rib,
As the lower pad of the lower member, it has an outer wall portion having a shape corresponding to the inner peripheral surface of the shipping box, an inner wall portion provided inside the outer wall portion and formed integrally with the upper portion of the outer wall portion, In the center of the inner wall portion is formed a receiving recess into which the lower part of the upper pad protrusion forming the upper pad receiving recess is inserted, and the outer wall portion and the inner wall portion are each formed with a rib,
The upper member includes an outer wall portion having a shape corresponding to the inner peripheral surface of the shipping box, an inner wall portion provided inside the outer wall portion and integrally formed with a lower portion of the outer wall portion, and a center of the inner wall portion. Is used in which an accommodation recess into which the upper end of the radionuclide elution apparatus is inserted is formed,
By inserting the protruding portion of the upper pad into the receiving recess of the lower pad and joining and connecting the bottom wall lower surface of the protruding portion and the bottom wall upper surface of the receiving recess, The outer wall portion of the lower member is constituted by the outer wall portion of the pad, the inner wall portion of the lower member is constituted by the inner wall portion of the upper pad and the inner wall portion of the lower pad, and the lower portion is accommodated by the receiving recessed portion of the upper pad and the lower recessed portion. A method for producing an interior material for packaging of a radionuclide elution apparatus, comprising an accommodation recess of a side member, and joining an upper surface of the impact absorbing portion to a lower surface of a bottom wall of an accommodation recess of a lower pad.
前記衝撃吸収部を中空略短軸円柱状のプラスチック成形体により構成した請求項に記載の放射性核種溶出装置包装用内装材の製造方法。 The manufacturing method of the interior material for packaging of a radionuclide elution apparatus according to claim 1 , wherein the shock absorbing portion is formed of a hollow, substantially short axis cylindrical plastic molding. 下側部材を輸送箱に装填したときに中空略短軸円柱状プラスチック成形体からなる衝撃吸収部の下端が輸送箱の底面に接触又は近接するようにした請求項に記載の放射性核種溶出装置包装用内装材の製造方法。 The radionuclide elution apparatus according to claim 2 , wherein the lower end of the shock absorbing portion made of a hollow, substantially short-axis cylindrical plastic molding is in contact with or close to the bottom surface of the transport box when the lower member is loaded in the transport box. A method for manufacturing packaging interior materials.
JP2007066463A 2007-03-15 2007-03-15 Method for producing interior material for packaging of radionuclide elution device Expired - Lifetime JP4095106B2 (en)

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