JP6228379B2 - Biological tissue adhesion / holding member and container provided with the same - Google Patents

Biological tissue adhesion / holding member and container provided with the same Download PDF

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JP6228379B2
JP6228379B2 JP2013081941A JP2013081941A JP6228379B2 JP 6228379 B2 JP6228379 B2 JP 6228379B2 JP 2013081941 A JP2013081941 A JP 2013081941A JP 2013081941 A JP2013081941 A JP 2013081941A JP 6228379 B2 JP6228379 B2 JP 6228379B2
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biological tissue
holding member
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liquid medium
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藤浦 洋二
洋二 藤浦
貞勝 安井
貞勝 安井
栗山 智
栗山  智
殖 天野
殖 天野
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Sakura Finetek Japan Co Ltd
International Enterprises Japan Inc
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本発明は、生物組織の密着・保持部材およびそれを備えた容器に関する。   The present invention relates to a biological tissue adhesion / holding member and a container including the same.

生物体より採取された組織からその組織の状態を調べる場合、組織検査室で検査し、組織の病理学的診断を行い、又、形態研究のために生物組織をカセットに収納し、固定、包埋、さらに薄切という一連の作業が一般に行われる。このような従来の一般的な操作作業は、煩雑で時間を要し、さらには作業中に対象となる組織の挫滅の可能性や、標本の取り違えなどもあり改善が望まれていた。作業の簡略化と上記のミスをなくす方法として、採取された生物組織を容器に収納後、固定から薄切まで容器を変えることなく標本作製過程を行うことができる生物組織固定・包埋・薄切用カセットが提案されている(特許文献1)。   When investigating the state of tissue from tissues collected from living organisms, it is examined in a tissue examination laboratory to perform pathological diagnosis of the tissue, and the biological tissue is stored in a cassette for morphological research, fixed, and wrapped. A series of operations such as filling and further slicing are generally performed. Such conventional general operation work is complicated and time-consuming. Further, there is a possibility that the target tissue may be destroyed during the work, and a sample may be mixed up. As a method of simplifying the work and eliminating the above-mentioned mistakes, the specimen preparation process can be performed without changing the container from fixation to slicing after storing the collected biological tissue in the container. A cutting cassette has been proposed (Patent Document 1).

この生物組織固定・包埋・薄切用カセットは、所定以上の硬さ及び強度の薄切可能な素材板に採取された生物組織を載置する基板と、基板と一体の素材板を折曲させ、又は別体の板材を着脱自在として開閉する蓋板とを備え、基板に生物組織を収納する収納部が設けられ、蓋板を閉じてその間に生物組織を密着・保持し生物組織の移動を阻止する密着・保持部材が基板の収納部内に蓋板を介して又は着脱自在に設けられ、両板材には多数の小孔を設けられている。この生物組織固定・包埋・薄切用カセットにおいて、生物組織を収納部の底板に密着・保持させるための密着・保持部材としてスポンジ素材を用いることが提案されている。 This cassette for fixing, embedding and slicing biological tissue is made by bending a substrate on which a biological tissue collected on a slicable material plate with a hardness and strength of a predetermined level or higher is mounted, and a material plate integrated with the substrate. Or a cover plate that opens and closes a separate plate so as to be detachable, and a storage portion for storing the biological tissue is provided on the substrate. A close contact / holding member is provided in the housing portion of the substrate via a cover plate or detachable, and a large number of small holes are provided in both plate materials. In this biological tissue fixation / embedding / slicing cassette, it has been proposed to use a sponge material as an adhesion / holding member for closely attaching / holding the biological tissue to the bottom plate of the storage unit.

また、小さい組織や、壊れやすい生物組織を採取した場合は、採取された組織が標本作成中にカセットより逸脱したり、傷つくのを防ぎ生物組織の形を整えるために、スポンジ素材からなる「バイオプシシート」(商品名、サクラファインテックジャパン社製)を用いて生物組織を包み込み、「バイオプシーシート」ごと容器に入れて、組織の逸脱や、傷つくのを防いでいる。固定、包埋が終わった段階で「バイオプシーシート」より、ピンセットで組織を取り出し別の容器の収納部に納めて包埋した後薄切している。 In addition, when collecting small tissue or fragile biological tissue, the biopsy is made of a sponge material to prevent the collected tissue from escaping from the cassette during preparation of the specimen and to prevent the tissue from being damaged. Biological tissue is wrapped using a “sheet” (trade name, manufactured by Sakura Finetech Japan Co., Ltd.), and the “biopsy sheet” is placed in a container to prevent tissue deviation and injury. After fixing and embedding, the tissue is taken out from the “biopsy sheet” with tweezers, placed in a storage part of another container, embedded, and sliced.

特許第4792586号Japanese Patent No. 4792586

しかしながら、密着・保持部材として上記のスポンジ素材を用いて、生物組織を固定、包埋させる際、強く包み込んだ場合はスポンジ素材が生物組織を変形させたり、傷つけるという問題がある。また組織を容器に入れる際に「バイオプシシート」(商品名、サクラファインテックジャパン社製)を用いて生物組織を包み込むという作業が必要であり、また包埋する際に「バイオプシート」より組織を取り出さなければならず、手間がかかりまたこの時に組織の取り違えが起こるという問題がある。
上記の生物組織の標本を作成するにおいて、生物組織を固定・包埋または薄切する場合に、簡単な作業により、生物組織の形を保ち、また傷つけずに収納部内に密着・保持し、生物組織を変形させたり、傷つけない良好な標本ができ、また組織の取り違えのミスを防ぐ生物組織の密着・保持部材が望まれていた。
本発明は、生物組織の変形を出来るだけ抑え、また傷つけずに収納部内にしっかりと密着・保持させる密着・保持部材、さらにこの密着・保持部材を備えることにより生物組織を傷つけずにしっかりと固定、包埋、薄切でき、さらに組織の取り違えのミスを防ぐことができる容器を提供することである。
However, when the above-described sponge material is used as an adhesion / holding member to fix and embed biological tissue, there is a problem that the sponge material may deform or damage the biological tissue if it is strongly wrapped. Also, when placing the tissue in the container, it is necessary to wrap the biological tissue using “Biopsi sheet” (trade name, manufactured by Sakura Finetech Japan Co., Ltd.). There is a problem in that it has to be taken out, and it takes time and organization mistakes occur at this time.
When preparing biological tissue specimens as described above, when fixing, embedding, or slicing biological tissue, the biological tissue shape is maintained by simple operations, and the biological tissue is adhered and held in the storage unit without being damaged. There has been a demand for a biological tissue adhesion / holding member that can produce a good specimen that does not deform or damage the tissue, and that prevents mistakes in tissue misconfiguration.
The present invention suppresses the deformation of the biological tissue as much as possible, and also tightly adheres and holds the inside of the storage unit without damaging it, and further secures the biological tissue without damaging it by providing this adhesion and holding member. An object of the present invention is to provide a container that can be embedded and sliced, and that can prevent mistakes in tissue mixing.

本発明者らは、上記の課題に鑑み、鋭意研究の結果、密着・保持部材として、水、ホルマリン、エタノール、イソプロピルアルコール、ポリエチレングリコール、キシロール、クロロホルム、アセトン、ジメチルスルフォキシド、蟻酸またはこれらの2種以上の混合物から選ばれるいずれかの液状媒体に膨潤する液状媒体膨潤性高分子を用いることにより達成できることを見出し本発明に至った。
すなわち、本発明は、生物組織を収納する収納部が設けられた基板および蓋板からなり、前記基板、蓋板および収納部に多数の小孔が設けられてなる、生物組織を固定、包埋、または薄切する容器において、前記収納部に収納される生物組織を密着・保持し、生物組織の移動を阻止する密着・保持部材であって、
前記密着・保持部材は、液状媒体膨潤性高分子により多孔質状に形成され、
前記収納部が水、ホルマリン、エタノール、イソプロピルアルコール、ポリエチレングリコール、キシロール、クロロホルム、アセトン、ジメチルスルフォキシド、蟻酸またはこれらの2種以上の混合物から選ばれるいずれかの液状媒体に浸漬されると前記密着・保持部材が膨潤することにより、予め前記収納部に収納された前記生物組織を押して収納部の底に固定することを特徴とする密着・保持部材である。
In view of the above problems, the present inventors have conducted intensive research, and as a close contact / holding member, water, formalin, ethanol, isopropyl alcohol, polyethylene glycol, xylol, chloroform, acetone, dimethyl sulfoxide, formic acid, or these The present inventors have found that this can be achieved by using a liquid medium-swellable polymer that swells in any liquid medium selected from two or more mixtures.
That is, the present invention comprises a substrate and a cover plate provided with a storage section for storing a biological tissue, and a plurality of small holes are provided in the substrate, the cover plate and the storage section, and the biological tissue is fixed and embedded. or in sliced to a container, the biological tissue to be housed in the housing portion in close contact and held, a contact-holding member for preventing movement of the biological tissue,
The adhesion / holding member is formed in a porous shape by a liquid medium swelling polymer,
When the storage unit is immersed in any liquid medium selected from water, formalin, ethanol, isopropyl alcohol, polyethylene glycol, xylol, chloroform, acetone, dimethyl sulfoxide, formic acid or a mixture of two or more thereof, The close contact / holding member swells to push the biological tissue previously stored in the storage portion and fix it to the bottom of the storage portion .

さらに本発明は、上記液状媒体膨潤性高分子が、水膨潤性高分子であることを特徴とする。 Furthermore, the invention is characterized in that the liquid medium swellable polymer is a water swellable polymer.

さらに本発明は、上記液状媒体膨潤性高分子が、水膨潤性発泡ポリウレタン系高分子であることを特徴とする。 Furthermore, the invention is characterized in that the liquid medium swellable polymer is a water-swellable foamed polyurethane polymer.

また、本発明は、生物組織を収納する収納部が設けられた基板および蓋板からなり、前記基板、蓋板および収納部に多数の小孔が設けられてなる容器であって、上記の密着・保持部材が前記収納部の上または中にあって生物組織の上に設置されてなる、生物組織固定用カセット、生物組織固定・包埋用カセット、または生物組織固定・包埋・薄切用カセットのいずれかである容器である。 Further, the present invention is a container comprising a substrate and a cover plate provided with a storage unit for storing a biological tissue, and a plurality of small holes provided in the substrate, the cover plate and the storage unit, A biological tissue fixation cassette, a biological tissue fixation / embedding cassette, or a biological tissue fixation / embedding / slicing slice, wherein the holding member is placed on or in the storage unit and placed on the biological tissue A container that is one of the cassettes.

また本発明は、上記の収納部に生物組織および記載の密着・保持部材を納めた後、蓋板を閉じ、前記容器を液状媒体に浸漬させて液状媒体膨潤性高分子を膨潤させ生物組織を押して収納部の底板に密着・保持させることを特徴とする密着・保持部材の使用方法である。 In addition, the present invention includes a biological tissue and the adhesion / holding member described in the storage section, and then closes the cover plate and immerses the container in a liquid medium to swell the liquid medium-swelling polymer, It is a method of using an adhesion / holding member, wherein the adhesion / holding member is pressed and adhered to and held on the bottom plate of the storage unit.

本発明によれば、生物組織を収納する収納部が設けられた基板および蓋板からなる生物組織を固定、包埋、または薄切する容器の収納部に生物組織を密着・保持し、生物組織の移動を阻止する密着・保持部材であって、水、ホルマリン、エタノール、イソプロピルアルコール、ポリエチレングリコール、キシロール、クロロホルム、アセトン、ジメチルスルフォキシド、蟻酸またはこれらの2種以上の混合物から選ばれるいずれかの液状媒体(以下単に液状媒体という場合がある)に膨潤する液状媒体膨潤性高分子(以下単に膨潤性高分子という場合がある)により形成された密着・保持部材が、該液状媒体で膨潤すると、膨潤した柔らかい高分子が生物組織の表面に軽く接して押し、また高分子と生物組織の間に存在する液状媒体が緩衝材の役目を果たすので、生物組織を傷つけずに収納部の底板に密着・保持させることができる。
また膨潤性高分子は構造により硬度を変更できるので、生物組織の硬度に対応できる膨潤時の硬度を有する膨潤性高分子を使用することにより、良好な密着・保持機能を発揮できる。
According to the present invention, a biological tissue is brought into close contact with and held in a storage portion of a container for fixing, embedding or slicing a biological tissue composed of a substrate and a cover plate provided with a storage portion for storing the biological tissue. Adhering / holding member that prevents the movement of water, any one selected from water, formalin, ethanol, isopropyl alcohol, polyethylene glycol, xylol, chloroform, acetone, dimethyl sulfoxide, formic acid or a mixture of two or more thereof When a contact / holding member formed of a liquid medium swellable polymer (hereinafter sometimes simply referred to as a swellable polymer) that swells in a liquid medium (hereinafter also simply referred to as a liquid medium) is swollen by the liquid medium. The swollen soft polymer is pressed lightly against the surface of the biological tissue, and the liquid medium existing between the polymer and the biological tissue is a cushioning material. Since serve, it can be brought into close contact with and held in the bottom plate of the receiving portion without damaging the biological tissue.
In addition, since the swellable polymer can change the hardness depending on the structure, a good adhesion / holding function can be exhibited by using a swellable polymer having a hardness at the time of swelling that can correspond to the hardness of a biological tissue.

また、大きな生物組織であって表面の凹凸の大きい複雑な形状のものであっても、膨潤性高分子が膨潤して生物組織を収納部の底板に強くない力で圧排することにより、生物組織を傷つけずに収納部の底に接することにより、底面を出来るだけ平坦な形状の生物組織にすることができる。従来、「バイオプシシート」(商品名、サクラファインテックジャパン社製)を用いて生物組織を包み込んで組織を保護していたが、本発明の密着・保持部材を用いることにより、生物組織を傷つけずに平坦にすることができる。また、生物組織固定・包埋用カセット、または生物組織固定・包埋・薄切用カセットに本発明の密着・保持部材を用いれば、ピンセットで生物組織を別の容器に移さずに生物組織を包埋または薄切することができ、効率的であると共に、生物組織の取り違えなどを防ぐことが出来る。   In addition, even if the biological tissue is a complex shape with a large unevenness on the surface, the swellable polymer swells, and the biological tissue is squeezed out with a strong force on the bottom plate of the storage unit. By contacting the bottom of the storage unit without damaging the bottom, the bottom surface can be made as flat as possible. Conventionally, a biological tissue was wrapped and protected by using “Biopsi sheet” (trade name, manufactured by Sakura Finetech Japan Co., Ltd.). By using the adhesion / holding member of the present invention, the biological tissue was not damaged. Can be flattened. In addition, if the adhesion / holding member of the present invention is used for a biological tissue fixation / embedding cassette or a biological tissue fixation / embedding / thin cutting cassette, the biological tissue can be removed without transferring the biological tissue to another container with tweezers. It can be embedded or sliced, and it is efficient and can prevent mixture of biological tissues.

本発明によれば、前記液状媒体膨潤性高分子が、水膨潤性高分子であるので、水により膨潤して、生物組織を収納部に密着・保持することができ、汎用性が大きい。また水に膨潤する高分子は種類が多いので、多くの水膨潤性高分子の中から選択して使用することができ、経済的、機能的に有利である。 According to the present invention, since the liquid medium-swellable polymer is a water-swellable polymer, it can swell with water and can adhere and hold a biological tissue in the storage unit, and is highly versatile. In addition, since there are many types of polymers that swell in water, they can be selected from many water-swellable polymers and are economically and functionally advantageous.

本発明によれば、前記膨潤性高分子が、水膨潤性ウレタン系高分子であるので、組織標本作成の操作過程で用いるイソプロピルアルコール、ポリエチレングリコール、キシロール、クロロホルム、アセトン、ジメチルスルフォキシド、蟻酸、パラフィンなどの薬品に対しても溶解することはなく、収納部の底板に密着・保持した生物組織を汚染することがなく、得られた標本における組織の観察を阻害しない。 According to the present invention, since the swellable polymer is a water-swellable urethane polymer, isopropyl alcohol, polyethylene glycol, xylol, chloroform, acetone, dimethyl sulfoxide, formic acid used in the process of preparing the tissue specimen In addition, it does not dissolve in chemicals such as paraffin, does not contaminate the biological tissue adhered to and held on the bottom plate of the storage section, and does not hinder the observation of the tissue in the obtained specimen.

本発明によれば、上記密着・保持部材を生物組織固定用カセット、生物組織固定・包埋用カセット、または生物組織固定・包埋・薄切用カセットのいずれかである容器に用いるので、密着・保持部材が液状媒体で膨潤して生物組織を傷つけずに収納部の底板にしっかりと密着・保持させることができ、生物組織を固定もしくは固定・包埋もしくは固定・包埋・薄切することができる。 According to the present invention, the contact / holding member is used for a container that is either a biological tissue fixing cassette, a biological tissue fixing / embedding cassette, or a biological tissue fixing / embedding / slicing cassette.・ The holding member swells with a liquid medium and can be firmly adhered to and held on the bottom plate of the storage unit without damaging the biological tissue, and the biological tissue is fixed, fixed, embedded, fixed, embedded, or sliced. Can do.

本発明によれば、生物組織を収納する収納部が設けられた基板および蓋板からなる容器であって、上記の密着・保持部材が前記収納部の上または中であって生物組織の上に設置されてなる、生物組織固定用カセット、生物組織固定・包埋用カセット、または生物組織固定・包埋・薄切用カセットのいずれかである容器であるので、この容器を用いれば密着・保持部材が液状媒体で膨潤して生物組織を傷つけずに収納部の底板にしっかりと密着・保持させることができ、生物組織を固定もしくは固定・包埋もしくは固定・包埋・薄切することができる。 According to the present invention, there is provided a container comprising a substrate and a cover plate provided with a storage unit for storing a biological tissue, wherein the contact / holding member is on or in the storage unit and on the biological tissue. The container is either a biological tissue fixing cassette, a biological tissue fixing / embedding cassette, or a biological tissue fixing / embedding / slicing cassette. The member can swell with a liquid medium and can be firmly adhered and held to the bottom plate of the storage unit without damaging the biological tissue, and the biological tissue can be fixed, fixed, embedded, fixed, embedded, or sliced. .

本発明によれば、上記容器の基板、蓋板および収納部に多数の小孔が設けられているので、容器を液状媒体に浸漬したとき液状媒体が多数の小孔から侵入し密着・保持部材を容易に膨潤させることができる。その結果、生物組織を傷つけずに収納部の底板によりしっかりと密着・保持させることができ、生物組織を固定もしくは固定・包埋もしくは固定・包埋・薄切することができる。 According to the present invention, since a large number of small holes are provided in the substrate, the cover plate, and the storage portion of the container, when the container is immersed in the liquid medium, the liquid medium enters from the large number of small holes and comes into close contact / holding member Can be easily swollen. As a result, the biological tissue can be firmly adhered and held by the bottom plate of the storage unit without damaging the biological tissue, and the biological tissue can be fixed, fixed, embedded, fixed, embedded, or sliced.

本発明によれば、基板、蓋板および収納部に多数の小孔が設けられてなる、生物組織固定用カセット、生物組織固定・包埋用カセット、または生物組織固定・包埋・薄切用カセットのいずれかである容器の収納部に生物組織および密着・保持部材を納めた後、蓋板を閉じ、生物組織固定・包埋・薄切用カセットを液状媒体に浸漬させるので、密着・保持部材が膨潤して生物組織を傷つけることなく収納部の底板にしっかりと密着・保持し、生物組織を容器内で固定もしくは固定・包埋もしくは固定・包埋・薄切することができる。 According to the present invention, a biological tissue fixing cassette, a biological tissue fixing / embedding cassette, or a biological tissue fixing / embedding / slicing slice, in which a large number of small holes are provided in a substrate, a cover plate, and a storage unit. After placing the biological tissue and adhesion / holding member in the storage part of the container, which is one of the cassettes, close the lid plate and immerse the biological tissue fixation / embedding / slicing cassette in the liquid medium, so that it adheres and holds The member can swell and firmly adhere to and hold the bottom plate of the storage unit without damaging the biological tissue, and the biological tissue can be fixed, fixed, embedded, fixed, embedded, or sliced in the container.

本発明における実施形態の密着・保持部材の例を示す斜視図である。It is a perspective view which shows the example of the contact | adherence and holding member of embodiment in this invention. 本発明における一つの実施形態の生物組織固定・包埋・薄切用カセットの(a)分解斜視図、(b)は(a)図の矢視X−Y面で切断したときの断面図、(c)は(b)図において生物組織を収納部に入れその上から密着・保持部材を設けたときの断面図、(d)は(c)図において、膨潤性高分子を膨潤させたときの断面図、(e)は(c)図における一つの収納部を拡大した断面図、(f)は(d)図における一つの収納部を拡大した断面図である。(A) exploded perspective view of the cassette for biological tissue fixation / embedding / slicing according to one embodiment of the present invention, (b) is a cross-sectional view taken along the XY plane of FIG. (C) is a cross-sectional view when a biological tissue is placed in the storage part in FIG. (B) and a close contact / holding member is provided thereon, and (d) is a case where the swellable polymer is swollen in FIG. (E) is an enlarged cross-sectional view of one storage portion in (c), and (f) is an enlarged cross-sectional view of one storage portion in (d). 本発明における別の実施形態の生物組織固定・包埋・薄切用カセットの(a)断面図、(b)液状媒体に浸漬させた後の断面図である。It is (a) sectional drawing of the cassette for biological tissue fixation of another embodiment in this invention, embedding, and a slice, (b) It is sectional drawing after being immersed in a liquid medium. より大きな生物組織をより大きな収納部に入れた別の形態のカセットの断面図であり、(a)図は液状媒体に浸漬する前の状態を示し、(b)図は液状媒体に浸漬した後の状態を示す図である。It is sectional drawing of the cassette of another form which put the larger biological tissue in the bigger accommodating part, (a) A figure shows the state before being immersed in a liquid medium, (b) After being immersed in a liquid medium It is a figure which shows the state of. 本発明における生物組織固定・包埋・薄切用カセットを用いた場合の薄切標本のヘマトキシリン・エオジン染色結果の顕微鏡写真図である。It is a microscope picture figure of the hematoxylin eosin dyeing | staining result of the sliced specimen at the time of using the cassette for biological tissue fixation in the present invention, embedding, and sliced.

以下、本発明の実施の形態につき、説明する。なお、本発明は、以下の実施の形態に限定されるものではない。本発明と同一および均等の範囲内において、以下の実施の形態に対して種々の変更を加えることが可能である。 Hereinafter, embodiments of the present invention will be described. Note that the present invention is not limited to the following embodiments. Various modifications can be made to the following embodiments within the same and equivalent scope as the present invention.

本発明で用いられる密着・保持部材は、水、ホルマリン、エタノール、イソプロピルアルコール、ポリエチレングリコール、キシロール、クロロホルム、アセトン、ジメチルスルフォキシド、蟻酸またはこれらの2種以上の混合物から選ばれるいずれかの液状媒体に膨潤する液状媒体膨潤性高分子から構成される。これらの液状媒体は、生物組織標本作成過程で使用される液状媒体である。ここでポリエチレングリコールは、室温で液状であればよく、たとえば数平均分子量が200〜600のものが挙げられる。現在上記の液状媒体が用いられているが、今後上記の液状媒体以外の液状媒体が本発明における容器を用いて標本を作製する過程の一部で使用されたとしても、その液状媒体は本発明の液状媒体に含まれるものである。これらの液状媒体の内、水は汎用性があり且つ高分子を最も膨潤しやすいので好ましい。 The adhesion / holding member used in the present invention is any liquid selected from water, formalin, ethanol, isopropyl alcohol, polyethylene glycol, xylol, chloroform, acetone, dimethyl sulfoxide, formic acid or a mixture of two or more thereof. It is composed of a liquid medium-swellable polymer that swells in the medium. These liquid media are liquid media used in the biological tissue specimen preparation process. Here, the polyethylene glycol may be liquid at room temperature, and examples thereof include those having a number average molecular weight of 200 to 600. Although the above liquid medium is currently used, even if a liquid medium other than the above liquid medium is used in a part of the process of preparing a specimen using the container according to the present invention, the liquid medium is the present invention. It is contained in the liquid medium. Of these liquid media, water is preferred because it is versatile and can swell the polymer most easily.

本発明の密着・保持部材の液状媒体膨潤倍率(以下単に膨潤倍率という場合がある)は容積で1.5倍以上が好ましく、2倍以上がより好ましい。1.5倍以上であると、カセットの収納部の深さが5mm程度の小型生物組織を扱うための小型収納カセットを使用する場合は、収納部に納められた膨潤性高分子が膨潤すると収納部の中間に存在している生物組織を傷つけることなく収納部の底板にしっかりと密着・保持させることができる。その結果、生物組織を容器内で固定もしくは固定・包埋もしくは固定・包埋・薄切することができる。 The liquid medium swelling ratio of the adhesion / holding member of the present invention (hereinafter sometimes simply referred to as swelling ratio) is preferably 1.5 times or more by volume, more preferably 2 times or more. When the size is 1.5 times or more, when using a small storage cassette for handling a small biological tissue having a cassette storage depth of about 5 mm, the cassette is stored when the swellable polymer stored in the storage portion swells. It can be firmly attached and held on the bottom plate of the storage unit without damaging the biological tissue existing in the middle of the unit. As a result, the biological tissue can be fixed or fixed / embedded or fixed / embedded / sliced in a container.

(膨潤倍率の測定法)
膨潤性高分子を10mm×10mmで厚さ10mmの立方体(体積:1,000mm)に切り取り、常温で液状媒体に浸漬し、1時間後に取り出し各辺を測定し、容積(Amm)を計算し、下式(1)で膨潤倍率を計算する。3個測定し、3個の平均値を膨潤性高分子の膨潤倍率とする。
膨潤倍率=A/1,000 (1)
(Measurement method of swelling ratio)
The swellable polymer is cut into a 10 mm × 10 mm cube (volume: 1,000 mm 3 ), immersed in a liquid medium at room temperature, taken out after 1 hour, each side is measured, and the volume (Amm 3 ) is calculated. Then, the swelling ratio is calculated by the following formula (1). Three are measured, and the average value of the three is defined as the swelling ratio of the swellable polymer.
Swelling ratio = A / 1,000 (1)

本発明で使用される膨潤性高分子は、たとえば重量分子量が500以上の化合物を架橋すれば液状媒体中でゲル化して膨潤しやすい。分子量が大きくなればなる程、また架橋度が大きい程ゲル化しやすいが、架橋度が大きすぎると膨潤性は逆に低下する。膨潤倍率は、各膨潤性高分子において、その原料成分、特にその液状媒体に親和性のあるモノマーの種類や量を調節した上、架橋度などを調節することにより制御できる。 The swellable polymer used in the present invention is easily swelled by gelation in a liquid medium if, for example, a compound having a weight molecular weight of 500 or more is crosslinked. The higher the molecular weight and the higher the degree of crosslinking, the easier the gelation. However, if the degree of crosslinking is too high, the swellability decreases. The swelling ratio can be controlled by adjusting the degree of crosslinking and the like in each swellable polymer by adjusting the type and amount of the monomer having affinity for the raw material component, particularly the liquid medium.

本発明で使用される膨潤性高分子としては、具体的にはたとえば、架橋ポリアクリル酸系高分子、膨潤性ポリエステル系高分子、膨潤性ポリウレタン系高分子、または膨潤性ナイロン系高分子などの膨潤性高分子が挙げられる。また、NBR,SBR、EPDM、EVA樹脂および塩化ビニル樹脂などの非膨潤性高分子に架橋ポリアクリル酸系やデンプン系の高吸水性樹脂を混練した複合高分子などが挙げられる。さらには、膨潤性ポリエステル系高分子、膨潤性ポリウレタン系高分子、または膨潤性ナイロン系高分子などの膨潤性高分子に、架橋ポリアクリル酸系やデンプン系の高吸水性樹脂を複合化させて膨潤性が向上した複合高分子などが挙げられる。これらの内で好ましいのは水膨潤性高分子であり、特に水、クロロホルムなどの極性媒体中で膨潤倍率が大きい。特に好ましいのは、水膨潤性ポリウレタン系高分子、または水膨潤性ポリウレタン系高分子に、架橋ポリアクリル酸系やデンプン系の高吸水性樹脂を複合化させた複合高分子である。 Specific examples of the swellable polymer used in the present invention include a crosslinked polyacrylic acid polymer, a swellable polyester polymer, a swellable polyurethane polymer, and a swellable nylon polymer. Swelling polymer is mentioned. In addition, composite polymers obtained by kneading a non-swelling polymer such as NBR, SBR, EPDM, EVA resin, and vinyl chloride resin with a crosslinked polyacrylic acid-based or starch-based highly water-absorbing resin can be used. Furthermore, a cross-linked polyacrylic acid-based or starch-based superabsorbent resin is compounded with a swellable polymer such as a swellable polyester-based polymer, a swellable polyurethane-based polymer, or a swellable nylon-based polymer. Examples thereof include composite polymers having improved swellability. Among these, water-swellable polymers are preferable, and the swelling ratio is particularly large in polar media such as water and chloroform. Particularly preferred is a water-swellable polyurethane polymer or a composite polymer in which a water-swellable polyurethane polymer is combined with a crosslinked polyacrylic acid-based or starch-based superabsorbent resin.

水膨潤性ポリウレタン系高分子は、膨潤しても弾力性に富み、耐薬品性が良好であるので前記の液状媒体に対して安定であり、本発明における密着・保持部材として好適である。水膨潤性ポリウレタン系高分子の中でも、水膨潤性ポリウレタンを発泡させた水膨潤性発泡ポリウレタンが特に柔軟であり、膨潤して生物組織に接触した場合でも生物組織を特に傷つけることがなくしっかりと密着・保持できるので好ましい。 The water-swellable polyurethane polymer is rich in elasticity even when swollen and has good chemical resistance, so it is stable to the liquid medium and is suitable as an adhesion / holding member in the present invention. Among the water-swellable polyurethane polymers, water-swellable polyurethane foam made by foaming water-swellable polyurethane is particularly flexible, and even when it swells and comes into contact with biological tissue, it does not particularly damage biological tissue and adheres firmly. -It is preferable because it can be retained.

また、膨潤時の硬度は任意であるが、生物組織の硬度は生物組織の種類により異なるため、生物組織の硬度に応じて膨潤時の硬度を調整した膨潤性高分子を用いることができる。膨潤時の硬度は主として膨潤性高分子のハードセグメント、ソフトセグメントの比率や架橋度を変えることにより調整できる。たとえば、水膨潤性発泡ポリウレタンの硬さ、弾力性などは使用するイソシアネートのハードセグメント、ポリオールなどのソフトセグメントの組成を変えることにより調整ができる。ポリオールとしてはポリエーテルポリオール、ポリエステルポリオールが好ましく使用できる。さらに膨潤性は膨潤性発泡ポリウレタンに高吸水性樹脂を組み込んで複合化しても向上できる。 Moreover, although the hardness at the time of swelling is arbitrary, since the hardness of a biological tissue changes with kinds of biological tissue, the swelling polymer which adjusted the hardness at the time of swelling according to the hardness of a biological tissue can be used. The hardness at the time of swelling can be adjusted mainly by changing the ratio of the hard segment and soft segment of the swellable polymer and the degree of crosslinking. For example, the hardness and elasticity of the water-swellable polyurethane foam can be adjusted by changing the composition of the hard segment of isocyanate to be used and the soft segment such as polyol. As the polyol, polyether polyol and polyester polyol can be preferably used. Furthermore, the swellability can be improved by incorporating a highly water-absorbing resin into a swellable foamed polyurethane to form a composite.

膨潤性高分子は、脱水・有機溶剤置換後にパラフィンが浸透できるものが好ましい。パラフィンが浸透できればパラフィン包埋工程において収納部の底板に密着・保持された生物組織をそのまま包埋することができる。膨潤性高分子が多孔質であるとその孔にパラフィンが侵入することができ生物組織の包埋ができるので好ましく、連通式の多孔質であればパラフィンは容易に孔に侵入して生物組織の包埋ができるのでより好ましい。すなわち、水膨潤性発泡ウレタンは多孔質であるので好ましく、水膨潤性連通式発泡ウレタンであればより好ましい。また無膜化処理が施された水膨潤性発泡ウレタンであるとパラフィンがさらに侵入しやすく特に好ましい。 The swellable polymer is preferably one that allows paraffin to permeate after dehydration and organic solvent substitution. If paraffin can permeate, the biological tissue adhered and held on the bottom plate of the storage unit in the paraffin embedding process can be embedded as it is. If the swellable polymer is porous, paraffin can enter the pores and biological tissue can be embedded, and if it is a continuous porous material, the paraffin easily penetrates into the pores and does not penetrate the biological tissue. It is more preferable because it can be embedded. That is, water-swellable urethane foam is preferable because it is porous, and water-swellable continuous urethane foam is more preferable. Moreover, it is particularly preferable that the water-swellable foamed urethane subjected to the film-less treatment is more easily penetrated by paraffin.

密着・保持部材の大きさは、容器の収納部の中に入る程度の小さいチップ状のものから、収納部の上に置ける大きさのものまで、カセットの収納部の大きさに応じて使用できる
図1(a)〜(e)に本発明における膨潤する前の密着・保持部材の具体例を斜視図で示した。図1(a)は収納部に入る小さい円柱状のチップ状の密着・保持部材6を示す。チップ状の密着・保持部材の形状としては、図1(a)の円柱状の密着・保持部材6や、直方体状などの柱状の形状のもの、円錐状などの錐状の形状のものが好ましく挙げられるが、さらには不定形の形状のものであってもよい。これらの中で円柱状の形状のものが安定して密着・保持できるのでより好ましい。このものは収納部の中に1個ずつ入れて使用する。チップ状のものは生物組織の上におけば確実に収納部の底に密着・保持できるので、収納部の深さが深いときに有利に使用できる。
The size of the close contact / holding member can be used according to the size of the cassette storage part, from a chip-like one that can enter the container storage part to a size that can be placed on the storage part. The specific example of the contact | adherence and holding member before swelling in this invention in FIG. 1 (a)-(e) was shown with the perspective view. FIG. 1 (a) shows a small cylindrical chip-shaped contact / holding member 6 entering the storage section. As the shape of the chip-shaped contact / holding member, the columnar contact / holding member 6 of FIG. 1A, a columnar shape such as a rectangular parallelepiped, or a cone-shaped shape such as a cone is preferable. Although it may be mentioned, it may be of an irregular shape. Among these, a cylindrical shape is more preferable because it can stably adhere and hold. Use these one by one in the storage. Since the chip-like material can be securely adhered to and held on the bottom of the storage section when placed on a biological tissue, it can be advantageously used when the storage section is deep.

また、図1(b)に示すような複数の収納部に跨る細長いテープ状の密着・保持部材7や、図1(c)に示すような基板全体を覆うような板状の密着・保持部材8が挙げられる。これらのものは収納部の上に置くだけでよく、膨潤して収納部の中に入り生物組織を収納部の底に密着・保持する。これらの密着・保持部材は膨潤倍率が大きいときや、収納部の深さが比較的浅いときに有利に使用出来る。 Moreover, the elongate tape-shaped adhesion | attachment / holding member 7 ranging over several accommodating parts as shown in FIG.1 (b), and the plate-shaped adhesion | attachment / holding member which covers the whole board | substrate as shown in FIG.1 (c). 8 is mentioned. These only need to be placed on the storage unit, swell and enter the storage unit, and the biological tissue adheres to and holds the bottom of the storage unit. These adhesion / holding members can be advantageously used when the swelling ratio is large or when the depth of the storage portion is relatively shallow.

また、柱状、円錐状、不定形状の密着・保持部材を細長いテープ状基体、基板全体に広がる板状基体、さらには蓋板の内側に予め粘着剤などで張り付けておけば一度に複数の密着・保持部材を複数の収納部に入れることができる。この例を図1(d)に示した。図1(d)では、一つのテープ状基体9に、図1(e)では板状基体10に、それぞれ4個の(a)図で示した円柱状のチップ状の密着・保持部材6が貼り付けられている。 In addition, if a columnar, conical, or indeterminately shaped adhesion / holding member is attached to an elongated tape-shaped substrate, a plate-shaped substrate that extends over the entire substrate, or the inside of the lid plate with an adhesive or the like in advance, a plurality of adhesion / The holding member can be placed in a plurality of storage units. An example of this is shown in FIG. In FIG. 1 (d), one tape-like substrate 9 is provided, and in FIG. 1 (e), four plate-like contact / holding members 6 shown in FIG. It is pasted.

密着・保持部材の作成法としては、たとえば密着・保持部材を形成する所定の膨潤度や硬度を有する膨潤性高分子を製造した後、その塊を所定の厚さにスライスし、所定の大きさにカットすることにより、図1(b)、(c)に示されるような密着・保持部材が得られる。また、所定の厚さにスライスしたものを上記の柱状、円錐状の型をもつトムスン装置などの打ち抜き装置で打ち抜くことによって図1(a)で示されるような柱状、錐状の密着・保持部材が得られる。また、不定形状のものははさみなどにより任意に切り取って得られる。 As a method for producing the adhesion / holding member, for example, after producing a swellable polymer having a predetermined swelling degree and hardness for forming the adhesion / holding member, the lump is sliced to a predetermined thickness, and a predetermined size is obtained. By cutting into two, a contact / holding member as shown in FIGS. 1B and 1C is obtained. Further, a columnar and conical contact / holding member as shown in FIG. 1 (a) is obtained by punching a material sliced to a predetermined thickness with a punching device such as the above-mentioned columnar or conical mold. Is obtained. In addition, an irregular shape can be obtained by arbitrarily cutting with scissors.

図1(d)で示されるような複数の柱状、錐状の密着・保持部材6を有するテープ状基体9は、複数の柱状または円錐状の密着・保持部材6を収納部の間隔に合わせて配置し、保持部材の底を粘着剤によりテープ上に接着させることにより得られる。また、テープ状基体9でなくても図1(e)で示されるような基板全体に広がる板状基体10や蓋板の内側に上記粘着剤により密着・保持部材6を前記収納部の間隔に合わせて配置し、粘着剤により接着してもよい。この場合、粘着剤が前記液状媒体から選ばれるいずれかの溶媒に溶解すれば、標本作成過程で粘着剤が溶解してなくなるので、外の液状媒体、特にパラフィンが収納部の中に侵入するのを阻害することがなくなり、良好な標本が作成できるので好ましい。 The tape-like base 9 having a plurality of columnar and cone-shaped contact / holding members 6 as shown in FIG. 1 (d) has a plurality of columnar or cone-shaped contact / holding members 6 aligned with the spacing of the storage unit. It is obtained by arranging and adhering the bottom of the holding member onto the tape with an adhesive. Further, even if the substrate is not the tape-like substrate 9, the adhesive / adhesive member 6 is placed at the interval of the storage portion by the above-mentioned adhesive on the inside of the plate-like substrate 10 or the cover plate spreading over the whole substrate as shown in FIG. You may arrange | position together and you may adhere | attach with an adhesive. In this case, if the pressure-sensitive adhesive is dissolved in any solvent selected from the liquid medium, the pressure-sensitive adhesive is not dissolved in the sample preparation process, so that the other liquid medium, particularly paraffin, enters the storage section. Is preferable because a good specimen can be prepared.

テープ状基体9や板状基体10の材質は用いる液状媒体に安定であれば特に限定はない。長さは容器に収納できればよく、また幅は柱状、円錐状の密着・保持部材6の底よりも広くても狭くてもよいが、狭い方が密着・保持部材と収納部の側壁との間に隙間ができ液状媒体が収納部に侵入できるので好ましい。また、テープ状基体9が液状媒体を通過させる有孔の通液性テープであれば外の液状媒体、特にパラフィンが収納部の中に侵入するのを阻害することがなく、良好な標本が作成できるので好ましい。特にテープ状基体9が図1(b)で示される本発明の密着・保持部材であると、テープ状基体も膨潤すると密着・保持部材の見かけ上の膨潤性も大きくなり、小さい円柱状のチップであっても生物組織を収納部の底によりしっかりと密着・保持することができる。このような密着・保持部材は、粘着剤で貼り付けなくても膨潤性高分子の塊から作成した一体化されたものでもよい。 The material of the tape-like substrate 9 and the plate-like substrate 10 is not particularly limited as long as it is stable to the liquid medium to be used. The length may be stored in the container, and the width may be wider or narrower than the bottom of the columnar or conical contact / holding member 6, but the narrower is between the contact / holding member and the side wall of the storage unit. This is preferable because a gap can be formed in the liquid medium and the liquid medium can enter the storage portion. In addition, if the tape-shaped substrate 9 is a porous liquid-permeable tape that allows the liquid medium to pass therethrough, a good specimen can be prepared without hindering other liquid media, particularly paraffin, from entering the storage section. It is preferable because it is possible. In particular, when the tape-shaped substrate 9 is the adhesion / holding member of the present invention shown in FIG. 1B, the apparent swelling of the adhesion / holding member increases when the tape-shaped substrate also swells, and a small cylindrical chip. Even so, the biological tissue can be firmly adhered to and held on the bottom of the storage unit. Such a close contact / holding member may be an integrated member made from a mass of a swellable polymer without being attached with an adhesive.

本発明における容器は、生物組織を収納する収納部が設けられた基板および蓋板からなり、生物組織を固定、包埋、または薄切する容器であれば限定はないが、生物組織固定用カセット、生物組織固定・包埋用カセット、または生物組織固定・包埋・薄切用カセットであるのが好ましい。生物組織固定・包埋・薄切用カセットの基本構造は、特許第4792856号に開示されたものと同じものが使用できる。
生物組織固定用カセットは、生物組織を固定する容器であり、組織を固定できればよい。生物組織固定・包埋用カセットは、生物組織を固定後包埋する容器であり、組織を固定および包埋できればよい。生物組織固定用カセット、生物組織固定・包埋用カセットは、特許第4792856号に開示された生物組織固定・包埋・薄切用カセットに類似しているものが好ましく使用できるが、これに限定されない。
The container in the present invention includes a substrate and a cover plate provided with a storage unit for storing a biological tissue, and is not limited as long as it is a container that fixes, embeds, or slices the biological tissue. A biological tissue fixation / embedding cassette or a biological tissue fixation / embedding / slicing cassette is preferred. The basic structure of the biological tissue fixing / embedding / slicing cassette can be the same as that disclosed in Japanese Patent No. 4792856.
The biological tissue fixing cassette is a container for fixing a biological tissue as long as the tissue can be fixed. The biological tissue fixing / embedding cassette is a container for embedding a biological tissue after it has been fixed, as long as it can fix and embed the tissue. As the biological tissue fixing cassette and the biological tissue fixing / embedding cassette, those similar to the biological tissue fixing / embedding / slicing cassette disclosed in Japanese Patent No. 4792856 can be preferably used, but are not limited thereto. Not.

また、上記容器は好ましくは容器の基板、蓋板および収納部に多数の小孔が設けられているものである。容器を液状媒体に浸漬したとき液状媒体が多数の小孔から侵入し密着・保持部材を膨潤させることができる。その結果生物組織を傷つけずに収納部の底板にしっかりと密着・保持させることができ、生物組織を固定もしくは固定・包埋もしくは固定・包埋・薄切することができる。 Further, the container is preferably one in which a large number of small holes are provided in a substrate, a cover plate, and a storage portion of the container. When the container is immersed in the liquid medium, the liquid medium can enter from a large number of small holes to swell the adhesion / holding member. As a result, the biological tissue can be firmly adhered and held to the bottom plate of the storage unit without damaging the biological tissue, and the biological tissue can be fixed, fixed, embedded, fixed, embedded, or sliced.

図2は、生物組織固定用カセット、生物組織固定・包埋用カセット、および生物組織固定・包埋・薄切用カセットの代表として一つの実施形態の生物組織の固定・包埋・薄切用カセットを示す。図2(a)は基板1と蓋板2とを分解した斜視図、図2(b)は図2(a)を組立てて矢視X−Y面を切断したときの断面図、図2(c)は上記図2(b)において、収納部5の中に生物組織11を入れた後その上に密着・保持部材6を納め上から蓋板2を閉めた状態の断面図である。図2(d)は図2(c)において、密着・保持部材6を膨潤させたときの断面図、図2(e)は図2(c)における一つの収納部を拡大した断面図、図2(f)は図2(d)における一つの収納部を拡大した断面図である。
図2(a)の下段の図は生物組織11を載置する基板1を示し、上段の図はその蓋板2を示す。基板1は、底面に4個の底のある円筒状の溝があり、これが収納部5である。この収納部5に、生物組織11が収納される。この収納部5の形状は任意であり、図2(a)では円筒状の収納部を記載しているが、別の形状、たとえば直方体状の収納部であってもよい。収納部5は採取する生物組織11の大きさにより決めるのが好ましい。この図においては、収納部である収納部5は4個であるが、収納部の個数も任意である。また、図2(a)のカセットには四辺に周縁板3が設けられているが、これにより蓋板2は密着・保持部材6を支持しやすくなっている。周縁板3の替わりに他の支持部材を設けてもよい。
FIG. 2 shows a biological tissue fixing cassette, a biological tissue fixing / embedding cassette, and a biological tissue fixing / embedding / slicing cassette as a representative example of a biological tissue fixing / embedding / slicing cassette. Indicates a cassette. 2A is an exploded perspective view of the substrate 1 and the cover plate 2, FIG. 2B is a cross-sectional view of the assembly shown in FIG. FIG. 2C is a cross-sectional view of the state shown in FIG. 2B in which the biological tissue 11 is placed in the storage portion 5 and the contact / holding member 6 is placed on the storage portion 5 and the lid plate 2 is closed from above. 2D is a cross-sectional view when the contact / holding member 6 is swollen in FIG. 2C, and FIG. 2E is an enlarged cross-sectional view of one storage portion in FIG. 2 (f) is an enlarged cross-sectional view of one storage portion in FIG. 2 (d).
The lower diagram in FIG. 2A shows the substrate 1 on which the biological tissue 11 is placed, and the upper diagram shows the cover plate 2. The substrate 1 has a cylindrical groove with four bottoms on the bottom surface, which is the storage portion 5. A biological tissue 11 is stored in the storage unit 5. The shape of the storage portion 5 is arbitrary, and although a cylindrical storage portion is illustrated in FIG. 2A, another shape, for example, a rectangular parallelepiped storage portion may be used. The storage unit 5 is preferably determined according to the size of the biological tissue 11 to be collected. In this figure, there are four storage units 5 as storage units, but the number of storage units is also arbitrary. Further, the peripheral plate 3 is provided on the four sides of the cassette shown in FIG. 2A, so that the cover plate 2 can easily support the contact / holding member 6. Instead of the peripheral plate 3, another support member may be provided.

図2(a)の上段において示される蓋板2は、基板1とは別の板で構成されており、着脱自在に設けられており、収納部5に生物組織11が採取され、その上に密着・保持部材6が置かれた後、この蓋板2が閉められる。この図では蓋板2は別体であるが、一枚の長尺状の薄いプラスチックのシートを折曲げて基板1と蓋板2を同時に形成した一体型のものでもよい。また、蓋板2を閉めた後、密着・保持部材の膨潤により蓋板2が開かないように、蓋板2を基板1に固定してもよい。基板1、蓋板2、収納部材5には多数の小孔4が設けられているが、固定、脱水、包埋剤浸透、包埋操作中に液状媒体がカセット内に浸入出来るようにするためである。採取した生物組織11が処理中にこの小孔4から外に漏れることがなければよいが、一つのカセットには直径0.5mm〜1.0mm程度の孔を全体で10孔〜40孔/100mmの基準で設けるのが好ましい。
なお、カセット本体や収納部の他の形状については特許第4792856号に記載された形状なども挙げられ、特に限定されない。
The lid plate 2 shown in the upper part of FIG. 2 (a) is composed of a plate different from the substrate 1 and is detachably provided. The biological tissue 11 is collected in the storage unit 5, on which After the contact / holding member 6 is placed, the lid plate 2 is closed. In this figure, the lid plate 2 is a separate body, but it may be an integrated type in which a long thin plastic sheet is folded to simultaneously form the substrate 1 and the lid plate 2. Further, after the lid plate 2 is closed, the lid plate 2 may be fixed to the substrate 1 so that the lid plate 2 does not open due to swelling of the adhesion / holding member. A large number of small holes 4 are provided in the substrate 1, the cover plate 2, and the storage member 5, so that the liquid medium can enter the cassette during the fixing, dehydrating, embedding agent penetration, and embedding operations. It is. The collected biological tissue 11 does not have to leak out from the small holes 4 during processing. However, a single cassette has a hole with a diameter of about 0.5 mm to 1.0 mm and a total of 10 holes to 40 holes / 100 mm. It is preferable to provide on the basis of 2 .
In addition, about the other shape of a cassette main body or an accommodating part, the shape etc. which were described in patent 4792856 are mentioned, It does not specifically limit.

基板、蓋板などの素材は、耐水性で、ホルマリン、アルコール、アセトンなどの固定剤に対する耐固定剤性、キシレン、クロロホルムなどのその他の有機溶媒に対する耐有機溶媒性があり、パラフィンで変質せず、−30℃〜65℃の温度変化で著しい変形、材質変化等の大きな影響を受けず、ミクロトーム(薄切装置)により生物組織収納部の溝の部分は数ミクロン単位の厚さに生物組織を含むカセットを薄切できる素材を用いるのが好ましい。
これらの基板、蓋板、周縁板、並びに溝板の素材としては、上記を満たすものであれば限定はないが、たとえばポリプロピレン、ポリウレタン、テフロン(登録商標)、ポリスチレン、ビニロン、ナイロン、ABS樹脂、特殊加工を施した紙類あるいはその他の生物素材などを用いることができる。好ましいのは加工性、コストの面からポリプロピレンである。
Materials such as substrates and lids are water resistant, fixative resistant to fixatives such as formalin, alcohol and acetone, and resistant to other organic solvents such as xylene and chloroform, and are not altered by paraffin. The microtome (thinning device) reduces the thickness of the biological tissue storage part to a thickness of a few microns by using a microtome (thin cutting device). It is preferable to use a material capable of slicing the cassette.
Materials for these substrates, lid plates, peripheral plates, and groove plates are not limited as long as they satisfy the above requirements. For example, polypropylene, polyurethane, Teflon (registered trademark), polystyrene, vinylon, nylon, ABS resin, Paper or other biological materials that have been specially processed can be used. Preferred is polypropylene from the viewpoint of processability and cost.

これらの板や部材としては、厚さ・硬さが異なるものを用いてもよいが、基板や蓋板の方が硬く、収納部を形成する溝板の方が柔らかいのが好ましい。カセットや各部材の大きさは任意であり、採取する生物組織の大きさや形状などによって変えることができるが、カセットの大きさは縦15〜50mm、横10〜40mmが好ましい。また、収納部である溝の幅や深さは採取する生物組織の大きさによって異なるが、幅は2〜5mm、深さは1〜5mmが好ましい。各板の厚さは基板、蓋板が0.4mm〜1mm、溝板が0.1mm〜0.2mmが好ましい。基板における収納部と蓋板との間隔は任意でよいが、たとえば1〜7mmである。 As these plates and members, those having different thicknesses and hardnesses may be used, but it is preferable that the substrate and the cover plate are harder and the groove plate forming the storage portion is softer. The size of the cassette and each member is arbitrary, and can be changed depending on the size and shape of the biological tissue to be collected, but the size of the cassette is preferably 15 to 50 mm in length and 10 to 40 mm in width. Moreover, although the width | variety and depth of the groove | channel which is an accommodating part change with the magnitude | sizes of the biological tissue extract | collected, 2-5 mm in width and 1-5 mm in depth are preferable. The thickness of each plate is preferably 0.4 mm to 1 mm for the substrate and the cover plate, and 0.1 mm to 0.2 mm for the groove plate. Although the space | interval of the accommodating part and cover plate in a board | substrate may be arbitrary, it is 1-7 mm, for example.

上記の図には記載していないが、基板と蓋板の先端側周辺の適宜位置に互いに密着して嵌合する小さな凹部と凸部による嵌合部をいずれか一方の板と他方の板に複数箇所それぞれ形成し、基板に蓋板を被せて生物組織をその間に収容するときは、それぞれの凹部と凸部を嵌合させて両板を結合状態にすることができる。必要に応じて上記凹凸の嵌合部は、両板の一方を他方から引き離して解放する。凹凸の嵌合部による形式以外にも、たとえば両板の適宜外周辺をクリップやホッチキスなどの挟持手段や接着剤などで互いに接合する形式のように基板に蓋板を着脱できれば上記以外の他の種々の形式のものを採用することもできる。基板と蓋板との間の距離が狭いほど、間にある水膨潤性高分子の層を圧縮することになるが、圧縮の度合いは任意である。 Although not shown in the above figure, a fitting part by a small concave part and a convex part that fits closely to each other at appropriate positions around the front end side of the substrate and the cover plate is formed on one plate and the other plate. When a plurality of locations are formed, and the substrate is covered with a cover plate and the biological tissue is accommodated therebetween, the concave and convex portions can be fitted to each other so that the two plates can be combined. If necessary, the concave / convex fitting portion releases one of the two plates away from the other. In addition to the type with the concave and convex fitting parts, for example, if the cover plate can be attached to and detached from the substrate as in the type in which the outer periphery of both plates is appropriately joined to each other with clamping means such as clips and staples or adhesive, other than the above Various types can also be adopted. The smaller the distance between the substrate and the cover plate, the more the water-swellable polymer layer in between is compressed, but the degree of compression is arbitrary.

図2(b)は図2(a)を組立て矢視X−Y面を切断したときの断面図であり、収納部5が4個あることがわかる。
本発明の密着・保持部材の容器への配置の仕方は、密着・保持部材が膨潤して生物組織を収納部の底にしっかりと密着・保持できれば限定はなく、膨潤性高分子の膨潤度などに応じて変えることができる。たとえば、図1(a)の場合は収納部に1個ずつ入れる必要があるが、図1(d)、図1(e)の場合には一度に複数の密着・保持部材6を複数の収納部に納めることができるので効率的である。図1(b)、図1(c)の場合は、容器の基板より小さく、収納部をカバーできればよく、厚さは基板と収納部との間隔により決めてもよく、収納部の上に置くだけでよい。基板と収納部との間に納めたときに動かなければよく、蓋をして溶媒で膨潤することにより、組織を収納部の底板に柔らかく圧排することにより動かないようになるのが好ましい。したがって、層の厚さは2〜3mmが好ましい。
FIG. 2B is a cross-sectional view of the assembly of FIG. 2A taken along the XY plane, and it can be seen that there are four storage portions 5.
The method of arranging the adhesion / holding member of the present invention in the container is not limited as long as the adhesion / holding member swells and the biological tissue can be firmly adhered / held to the bottom of the storage unit, and the swelling degree of the swellable polymer, etc. Can be changed according to. For example, in the case of FIG. 1 (a), it is necessary to put one by one in the storage part, but in the case of FIG. 1 (d) and FIG. 1 (e), a plurality of close contact / holding members 6 are stored at a time. It is efficient because it can be stored in the department. In the case of FIG. 1 (b) and FIG. 1 (c), it is only necessary that the container is smaller than the substrate of the container and can cover the storage part, and the thickness may be determined by the distance between the substrate and the storage part. Just do it. It is not necessary to move when it is placed between the substrate and the storage unit, and it is preferable that the tissue is prevented from moving by being swollen with a solvent by being covered and softly evacuated to the bottom plate of the storage unit. Therefore, the thickness of the layer is preferably 2 to 3 mm.

図2(c)は、収納部5の中に生物組織11を入れ、その上に密着・保持部材として図1(a)で示されるもの6を収納部の中に1個1個納めた状態を示している。この状態においては、まだ液状媒体に接触しておらず、密着・保持部材6は単に生物組織11の上にあるだけである。
図2(d)は、図2(c)において密着・保持部材である膨潤性高分子が液状媒体に浸漬して膨潤し、収納部5の底板に生物組織11をしっかりと密着・保持している状態を示す。
FIG. 2 (c) shows a state in which the biological tissue 11 is placed in the storage unit 5, and the ones 6 shown in FIG. Is shown. In this state, it is not yet in contact with the liquid medium, and the contact / holding member 6 is merely on the biological tissue 11.
FIG. 2 (d) shows that the swelling polymer as an adhesion / holding member in FIG. 2 (c) is immersed in a liquid medium to swell, and the biological tissue 11 is firmly adhered / held to the bottom plate of the storage unit 5. Indicates the state.

図2(e)は、図2(c)における一つの収納部を拡大した断面図、図2(f)は図2(d)における一つの収納部を拡大した断面図である。図2(e)では、密着・保持部材6が生物組織11の上にあるだけである。図2(f)では、密着・保持部材6が膨潤して生物組織11を収納部5の底にしっかりと保持している状態が示されている。密着・保持部材6の中の気泡12も膨潤により大きくなっていることもわかる。 2E is an enlarged cross-sectional view of one storage portion in FIG. 2C, and FIG. 2F is an enlarged cross-sectional view of one storage portion in FIG. In FIG. 2 (e), the contact / holding member 6 is only on the biological tissue 11. FIG. 2 (f) shows a state in which the close contact / holding member 6 is swollen and the biological tissue 11 is firmly held on the bottom of the storage unit 5. It can also be seen that the bubbles 12 in the adhesion / holding member 6 are also enlarged due to swelling.

密着・保持部材の膨潤度が小さい場合は、図2(c)に示すように、収納部に中にまで密着・保持部材を1個ずつ入れておくことにより本発明の目的が達成できるが、膨潤度が比較的大きい場合は、下記の図3に示す様に収納部全体の上に置くだけで、収納部の底板に生物し式を密着・保持させることができる。 When the degree of swelling of the close contact / holding member is small, as shown in FIG. 2 (c), the object of the present invention can be achieved by putting the close contact / holding member one by one into the storage portion, When the degree of swelling is relatively large, as shown in FIG. 3 below, it can be placed on the entire storage unit and can be attached to and held on the bottom plate of the storage unit.

図3(a)は、本発明における別の一実施形態の生物組織固定・包埋・薄切用容器の断面図、図3(b)は、図3(a)を前記液状媒体に浸漬したときの断面図である。収納部5は小孔4を有している。図3(a)は、4個の収納部5の中に生物組織11を納めた後、図1(e)で示される密着・保持部材6が付いた板状基板10を基板1の上に置き上から蓋板2を閉めた状態の断面図である。図1(e)の密着・保持部材は板状基体10に図1(a)で示されるチップ状の密着・保持部材6が接着してものであるので、一度に4個の密着・保持部材を4個の収納部5に収めることができる。この状態においては、まだ液状媒体に接触しておらず、密着・保持部材である膨潤性高分子は収納部5の中にはほとんど入っていない。基板の大きさに合わせた膨潤性高分子の層を基板の上に置いた様子を示している。 FIG. 3A is a sectional view of a biological tissue fixing / embedding / slicing container according to another embodiment of the present invention, and FIG. 3B is a diagram in which FIG. 3A is immersed in the liquid medium. FIG. The storage portion 5 has a small hole 4. 3A, after the biological tissue 11 is stored in the four storage portions 5, the plate-like substrate 10 with the adhesion / holding member 6 shown in FIG. It is sectional drawing of the state which closed the cover plate 2 from the top. The contact / holding member of FIG. 1 (e) is obtained by adhering the chip-like contact / holding member 6 shown in FIG. 1 (a) to the plate-like substrate 10, so that four contact / holding members at a time. Can be stored in the four storage portions 5. In this state, the liquid medium is not yet in contact, and the swellable polymer that is an adhesion / holding member is hardly contained in the storage unit 5. A state in which a layer of a swellable polymer that matches the size of the substrate is placed on the substrate is shown.

図3(b)は、図3(a)に示した容器を液状媒体に浸漬し、膨潤性高分子6が膨潤してその一部が収納部5に入り生物組織11を収納部5の底板にしっかりと密着・保持させている。板状基体10も膨潤性高分子で構成されているので、この部分も膨潤している。 FIG. 3B shows a case in which the container shown in FIG. Is firmly attached to and held on. Since the plate-like substrate 10 is also made of a swellable polymer, this portion is also swollen.

図4はより大きな生物組織11をより大きな収納部に入れた別の形態のカセットの断面図を示した。図4(a)は広い収納部5に大きい生物組織11を入れ、密着・保持部材8を置き、蓋板2をした状態である。生物組織11には曲った複雑な形状のものがあり、そのような場合は生物組織11が収納部5の底に接しているのは部分的である。図4(b)は、上記カセットを液状媒体に浸漬させ、膨潤させた後の状態である。曲った複雑な形状の生物組織11は、より平坦になり収納部5の底に接する面積がより多くなっている。すなわち、密着・保持部材8が膨潤して生物組織を収納部の底板に柔らかく圧排する力によって、生物組織を傷つけずに、出来るだけ平坦な形状の生物組織にすることができ、この様な方法で包埋されたカセットを薄切する時には良好な薄切切片を得ることが出来る。従来、「バイオプシシート」(商品名、サクラファインテックジャパン社製)を用いて生物組織を包み込んで平坦にしていたが、本発明の密着・保持部材を用いることにより、生物組織を傷つけずに容易に平坦にすることができる。また、生物組織固定・包埋用容器、または生物組織固定・包埋・薄切用容器に本発明の密着・保持部材を用いれば、ピンセットで生物組織を別の容器に移さずに生物組織を包埋または薄切まですることができ、効率的であり、組織の取り違いを防ぐことが出来る。 FIG. 4 shows a cross-sectional view of another embodiment of a cassette in which a larger biological tissue 11 is placed in a larger storage unit. FIG. 4A shows a state in which a large biological tissue 11 is placed in a wide storage portion 5, a close contact / holding member 8 is placed, and the lid plate 2 is used. The biological tissue 11 has a curved and complicated shape. In such a case, the biological tissue 11 is partially in contact with the bottom of the storage unit 5. FIG. 4B shows a state after the cassette is immersed in a liquid medium and swollen. The bent biological tissue 11 having a complicated shape is flatter and has a larger area in contact with the bottom of the storage unit 5. That is, by the force that the contact / holding member 8 swells and softly excludes the biological tissue from the bottom plate of the storage unit, the biological tissue can be made as flat as possible without damaging the biological tissue. A good sliced section can be obtained when slicing the cassette embedded in (1). Conventionally, the bio-tissue sheet (trade name, manufactured by Sakura Finetech Japan Co., Ltd.) was used to wrap and flatten the biological tissue. By using the adhesion / holding member of the present invention, the biological tissue can be easily damaged. Can be flattened. In addition, if the adhesion / holding member of the present invention is used for a biological tissue fixing / embedding container or a biological tissue fixing / embedding / thin slicing container, the biological tissue is not transferred to another container with tweezers. It can be embedded or sliced, is efficient, and prevents tissue misplacement.

上記の生物組織固定・包埋・薄切用容器を用いた場合は、薄切まで一貫して行うことができる。このような一貫した生物組織の固定・包埋・薄切操作方法では、容器の基板の収納部上に生物組織を載せ、膨潤性高分子を設置した後、蓋板を閉じて生物組織を収容し、この容器をパラフィンなどの固定剤に浸漬して生物組織を固定する。
たとえば、膨潤性高分子が水膨潤性高分子である場合を例にとると、以下のように操作される。固定操作過程において用いる液状媒体であるホルマリンは、含水固定液の一つであり、この固定液に浸漬中に水膨潤性高分子は膨潤して収納部の底板に生物組織を密着・保持することができる。浸漬時間は10秒〜1時間あればよい。また、その後の水洗過程においても水膨潤性高分子は水に接触するので膨潤することができる。その後必要な固定操作が終了した後、容器を自動包埋装置にセットする。自動包埋装置内で脱水後にパラフィンの包埋剤で固化すると薄切用ブロックが得られる。以上の様に薄切用ブロックは自動包埋装置を用いて作成されたが、ブロック作成までの工程は手動で行ってもよい。この薄切用ブロックは、ミクロトームにより薄切され切片となる。切片をスライドガラス上に置いた後、染色操作過程に移す。一般染色では容器の素材の薄片は脱パラフィン操作の過程でスライドガラスより自然に剥がれ落ちて染色されず、生物組織とスポンジ素材が染色される。この様にして染色された標本はスポンジ素材を用いないで固定・包埋・薄切されて染色された標本に比べて染色性において何ら変わることはない。
When the above biological tissue fixation / embedding / slicing container is used, it can be performed consistently up to slicing. In such a consistent biological tissue fixing, embedding, and slicing operation method, the biological tissue is placed on the storage portion of the substrate of the container, the swellable polymer is placed, and then the lid plate is closed to accommodate the biological tissue. Then, the container is immersed in a fixing agent such as paraffin to fix the biological tissue.
For example, taking the case where the swellable polymer is a water-swellable polymer as an example, the following operation is performed. Formalin, which is a liquid medium used in the fixing operation process, is one of water-containing fixing solutions. During immersion in this fixing solution, the water-swellable polymer swells, and the biological tissue is adhered and held on the bottom plate of the storage unit. Can do. The immersion time may be 10 seconds to 1 hour. Further, in the subsequent washing process, the water-swellable polymer comes into contact with water and can swell. Thereafter, after the necessary fixing operation is completed, the container is set in the automatic embedding apparatus. After dehydration in an automatic embedding device, solidified with a paraffin embedding agent, a block for slicing is obtained. As described above, the block for slicing was created using an automatic embedding device, but the steps up to the creation of the block may be performed manually. This block for slicing is sliced by a microtome into sections. After the section is placed on a glass slide, it is transferred to the staining procedure. In general staining, the thin pieces of the container material are peeled off naturally from the slide glass during the deparaffinization process and are not dyed, but the biological tissue and sponge material are dyed. The specimen dyed in this way has no change in dyeability as compared with a specimen dyed by fixation, embedding or sliced without using a sponge material.

このように一貫した固定・包埋・薄切操作方法を順次用いれば、組織を採取した後、染色作業をするまで一貫して生物組織を一切ピンセットなどで扱うことなく生物組織を操作できる。生物組織の染色用薄切切片標本の作成を簡便かつ間違いなく作成できると共に、作業中に起こる組織の取り違えミスを防止することができ、臨床検査を含む組織形態学的検査領域で有効な検査容器として利用することができる。大きな生物組織に適用する場合も同様である。 If the consistent fixing / embedding / slicing operation method is sequentially used in this way, the biological tissue can be manipulated without having to handle the biological tissue with tweezers at all until the tissue is collected and then stained. It is possible to create thin sliced specimens for staining biological tissue easily and without mistake, and prevents mistakes in tissue misplacement that occurs during work, and is an effective test container in the area of histomorphological examination including clinical examination. Can be used as The same applies when applied to large biological tissues.

以下、実施例にて本発明をさらに詳細に説明するがこれに限定されるものではない。
[実施例]
図2に記載した4個の収納部をもつ二つのカセット(1個1個の溝の大きさは、直径4mm、深さ5mmである)にそれぞれ生物組織を採取し直径4mm、で高さ4mmの径の大きさが傾斜した円筒状の水膨潤性発泡ウレタン製の密着保持部材(液状媒体の膨潤倍率は水(2.4倍)、酢酸(4.2倍)、ホルマリン(2.8倍)、アセトン(2.0倍)、エタノール(2.0倍)、キシロール(1.6倍)、クロロホルム(5.3倍)。括弧内は容積の倍率)で収納部に収め、蓋を閉めた。常法に基づき標本を作成した。上記の例で示した5個のカセットを用いて使用試験を行ったところ、いずれのカセットにおいても生物組織は傷ついておらず、5個のカセットとも良好な標本が仕上がった。この結果を図5に示した。図5は、本発明における生物組織固定・包埋・薄切用カセットを用いた場合の薄切標本のヘマトキシリン・エオジン染色結果の顕微鏡写真図である。図5によれば、膨潤性スポンジを用いたカセットの薄切・染色結果では薄切に特別な問題はない。染色についてもスポンジを用いないカセットの標本となんら変わらない染色結果が得られた。
本発明のカセットは、作業効率化、生物組織を傷つけずにしっかりと固定、包埋、薄切でき、さらに組織の取り違えのミスを防ぐことができる。
EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, it is not limited to this.
[Example]
Biological tissues are collected in two cassettes (the size of each groove is 4 mm in diameter and 5 mm in depth) and the height is 4 mm and the height is 4 mm. The cylindrical water-swellable urethane foam close-contact holding member (the swelling ratio of the liquid medium is water (2.4 times), acetic acid (4.2 times), formalin (2.8 times) ), Acetone (2.0 times), ethanol (2.0 times), xylol (1.6 times), chloroform (5.3 times). It was. Samples were prepared based on conventional methods. When a use test was performed using the five cassettes shown in the above examples, the biological tissue was not damaged in any of the cassettes, and good specimens were finished in all the five cassettes. The results are shown in FIG. FIG. 5 is a photomicrograph of the result of hematoxylin / eosin staining of a sliced specimen when the cassette for immobilizing / embedding / slicing a biological tissue according to the present invention is used. According to FIG. 5, there is no special problem in slicing in the result of slicing and dyeing a cassette using a swellable sponge. The staining result was the same as that of the cassette sample without sponge.
The cassette of the present invention can improve work efficiency, can be firmly fixed, embedded and sliced without damaging biological tissue, and can prevent mistakes in tissue mixing.


1 基板
2 蓋板
3 周縁板
4 小孔
5 収納部の溝
6 チップ状の密着・保持部材
7 テープ状の密着・保持部材
8 板状の密着・保持部材
9 テープ状基板
10 板状基板
11 生物組織
12 密着・保持部材中の気泡

DESCRIPTION OF SYMBOLS 1 Substrate 2 Cover plate 3 Peripheral plate 4 Small hole 5 Groove of storage part 6 Chip-like adhesion / holding member 7 Tape-like adhesion / holding member 8 Plate-like adhesion / holding member 9 Tape-like substrate 10 Plate-like substrate 11 Biology Organization
12 Bubbles in the adhesion / holding member

Claims (5)

生物組織を収納する収納部が設けられた基板および蓋板からなり、前記基板、蓋板および収納部に多数の小孔が設けられてなる、生物組織を固定、包埋、または薄切する容器において、前記収納部に収納される生物組織を密着・保持し、生物組織の移動を阻止する密着・保持部材であって、
前記密着・保持部材は、液状媒体膨潤性高分子により多孔質状に形成され、
前記収納部が水、ホルマリン、エタノール、イソプロピルアルコール、ポリエチレングリコール、キシロール、クロロホルム、アセトン、ジメチルスルフォキシド、蟻酸またはこれらの2種以上の混合物から選ばれるいずれかの液状媒体に浸漬されると前記密着・保持部材が膨潤することにより、予め前記収納部に収納された前記生物組織を押して収納部の底に固定することを特徴とする密着・保持部材。
A container for fixing, embedding, or slicing a biological tissue , comprising a substrate and a cover plate provided with a storage unit for storing the biological tissue, and a plurality of small holes provided in the substrate, the cover plate and the storage unit. in the biological tissue to be housed in the housing portion in close contact and held, a contact-holding member for preventing movement of the biological tissue,
The adhesion / holding member is formed in a porous shape by a liquid medium swelling polymer,
When the storage unit is immersed in any liquid medium selected from water, formalin, ethanol, isopropyl alcohol, polyethylene glycol, xylol, chloroform, acetone, dimethyl sulfoxide, formic acid or a mixture of two or more thereof, A close contact / holding member, wherein the close contact / holding member swells to push the biological tissue previously stored in the storage portion and fix it to the bottom of the storage portion .
前記液状媒体膨潤性高分子が、水膨潤性高分子であることを特徴とする請求項1記載の密着・保持部材。 The adhesion / holding member according to claim 1, wherein the liquid medium-swellable polymer is a water-swellable polymer. 前記液状媒体膨潤性高分子が、水膨潤性発泡ポリウレタン系高分子であることを特徴とする請求項1または2に記載の密着・保持部材。 The adhesion / holding member according to claim 1, wherein the liquid medium swellable polymer is a water-swellable foamed polyurethane polymer. 生物組織を収納する収納部が設けられた基板および蓋板からなり、前記基板、蓋板および収納部に多数の小孔が設けられてなる容器であって、請求項1〜3のいずれか1項に記載の密着・保持部材が前記収納部の上または中にあって生物組織の上に設置されてなる、生物組織固定用カセット、生物組織固定・包埋用カセット、または生物組織固定・包埋・薄切用カセットのいずれかである容器。 A container comprising a substrate and a cover plate provided with a storage unit for storing a biological tissue , wherein the substrate, the cover plate, and the storage unit are provided with a plurality of small holes, wherein the container is a container. The biological tissue fixing cassette, the biological tissue fixing / embedding cassette, or the biological tissue fixing / packaging, wherein the adhesion / holding member according to the item is located on or in the storage unit and installed on the biological tissue A container that is one of cassettes for filling and slicing. 前記収納部に生物組織および請求項1〜3のいずれか1項に記載の密着・保持部材を納めた後、蓋板を閉じ、前記容器を液状媒体に浸漬させて液状媒体膨潤性高分子を膨潤させ生物組織を押して収納部の底板に密着・保持させることを特徴とする密着・保持部材の使用方法。 After the biological tissue and the adhesion / holding member according to any one of claims 1 to 3 are stored in the storage unit, the lid plate is closed, and the container is immersed in a liquid medium to form a liquid medium swelling polymer. A method of using an adhesion / holding member, wherein the biological tissue is swollen and pressed to adhere and hold onto a bottom plate of a storage unit.
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