JP4097877B2

JP4097877B2 - Medical examination cassette

Info

Publication number: JP4097877B2
Application number: JP2000141307A
Authority: JP
Inventors: 卓也村▲ずみ▼; 英彦村▲ずみ▼
Original assignee: Murazumi Industrial Co Ltd
Current assignee: Murazumi Industrial Co Ltd
Priority date: 2000-05-15
Filing date: 2000-05-15
Publication date: 2008-06-11
Anticipated expiration: 2020-05-15
Also published as: JP2001324428A

Description

【０００１】
【発明の属する技術分野】
本発明は、医療検査用顕微鏡標本の作製に使用する医療検査用カセットに関し、更に詳しくは、片手で容易且つ安定的に蓋を開閉でき、作業性の向上した医療検査用カセットに関する。
【０００２】
【従来の技術】
従来のこの種のカセットは、図１３に示すように、耐薬品性合成樹脂からなるカセット本体１と蓋２とを具備してなる。カセット本体１は、上面を開放した方形の容器で、底部に多数の透孔３を有し、短辺側の一側壁の外側に底部に向かって末広がり状に傾斜した板状の記録部４を設け、その内側に係止溝５を有し、他の側壁の外側に係止部６を有する。
【０００３】
蓋２は、着脱可能な板状体で、板面に多数の透孔７を有し、裏面の外周面に沿ってカセット本体内に嵌合するリブ８を有し、短辺側の一方側には前記係止溝５の記録部４の裏面に沿って嵌入係合する傾斜状係止片９を有し、短辺側の他方側にはカセット本体１よりも僅かに大き目の突縁部１０を有し、係合部６と係合する係止片１１を有している。
【０００４】
上記カセットを使用して顕微鏡標本を作製するには、まず、採取した検体１２をカセット本体１内に収容して蓋２を取り付け、記録部４に被検者の氏名等を記録しておく。蓋２の傾斜状係止片９は、カセット本体１の係止溝５に係合し、また係止片１１はカセット本体１の係止部６に係合して蓋２を固定する。
【０００５】
続いて、透孔７、３を通じて、検体１２を水洗し、次いでアルコールにより検体１２の水分を除去し、キシレンにより後述する液状パラフィンとの親和性を付与する。
【０００６】
次に、図１４に示すように、ステンレス製トレイ１３内に液状パラフィン１４を入れ、検体１２をカセット本体１から取り出して液状パラフィン１４中に置いて検体１２に液状パラフィンを浸透させる。続いて、トレイ１３の段部にカセット本体１を載せ、カセット本体１の底部が液状パラフィン１４に浸るまで、液状パラフィン１４を検体１２上に注ぎ足す。
【０００７】
液状パラフィン１４が固化した後トレイ１３を取り去ることにより、検体１２を包埋したパラフィン１４がカセット本体１の底部に付着してなるカセットブロック１５（図１５参照）を得る。
【０００８】
次に、図１５に示すように、ミクロトーム１６上に装着したアダプター１７の基台１８上にカセットブロック１５を裏返して載せ、固定する。アダプター１７は、レバー１９の操作により、基台１８に設けた固定腕２０と可動腕２１との間にカセット本体１を挟持して固定する。その際、カセット本体１が記録部４の傾斜により浮き上がるのを防止するため、両腕２０、２１の先端に形成した係止爪２２がカセット本体１の底部の角に係合する。続いて、パラフィン１４の検体１２を包埋した部分を矢印ａ方向にスライスし、スライスした薄片に染色、その他の所定の処理を施すことにより顕微鏡標本を得るのである。
【０００９】
【発明が解決しようとする課題】
上記カセットは、通常、一方の片手にピンセットを持ち、他方の片手で、例えば図１６に示す如く、蓋２のＰ点付近に人指し指を掛け、蓋２の突縁部１０に親指をかけた状態でＰ点を人指し指で少し押圧して該Ｐ点の両側を若干上方に反り返らせることにより蓋２の係止片１１をカセット本体１の係止部６から離脱させ、蓋２を上方に取り除き、もう一方の片手のピンセットを操作して検体をカセット本体１内に収容させる。そして、上記したように、水洗、薬剤処理を行った後、上記と同様の操作で片手で蓋２を取り去り、他方の片手のピンセットで検体１２をカセット本体１から取り出して液状パラフィン１４中に置いてカセットブロックが作成される。
【００１０】
しかるに、上記の如き従来のカセットにあっては、蓋２の裏面に設けたリブ８の傾斜状係止片９側の先端角部８ａがカセット本体１の側壁先端角部１ａに引っ掛り、蓋２を無理矢理上方に持ち上げてカセット本体１から取り去ろうとすると、蓋２が、先端角部８ａが側壁先端角部１ａから外れると同時にピンとはね上がることになり、その勢いで、カセット本体１内の検体１２がカセット本体１の外へ飛び出してしまい、貴重な検体１２を台無しにすることになる。
【００１１】
上記トラブルを回避しようとすれば、一旦両手を使って蓋２がはね上がることがないように慎重にカセット本体１から取り去り、次いで、ピンセットを使って検体１２を取り出すことになり、片手でピンセットを持ち、他方の片手で蓋を開けるという効率的な作業は不可能となり、従って、作業性は大巾に低下せざるを得ない。
【００１２】
本発明は、上記の如き欠点を解消し、片手で容易且つ安定的に開閉でき、作業性の改善された医療検査用カセットを提供するものである。
【００１３】
【課題を解決するための手段】
即ち、本発明の第１は、耐薬品性材料からなるカセット本体と蓋を具備してなり、
カセット本体が、上面を開放した、検体を収容し得る方形の容器で、多数の透孔を有し、短辺側の一側壁Ａの外側に底部に向かって末広がり状に傾斜した板状の記録部を備えるとともに、その内側に係止溝を有し、他の側壁Ｂの外側に係止部を有し、
蓋が多数の透孔を有し、裏面の外周面に沿ってカセット本体内に嵌合するリブを有し、短辺側の一方側には前記係止溝に記録部裏面に沿って嵌入係合する傾斜状係止片を、他方側にはカセット本体よりも僅かに大き目の突縁部を有し、前記係止部と係合する係止片を有してなる医療検査用カセットにおいて、
前記カセット本体の側壁Ａの内面と嵌合するリブの先端角部を除去した形状からなることを特徴とする医療検査用カセットを内容とする（請求項１）。
【００１４】
本発明の第２は、耐薬品性材料からなるカセット本体と蓋を具備してなり、
カセット本体が、上面を開放した、検体を収容し得る方形の容器で、多数の透孔を有し、短辺側の一側壁Ａの外側に底部に向かって末広がり状に傾斜した板状の記録部を備えるとともに、その内側に係止溝を有し、他の側壁Ｂの外側に係止部を有し、
蓋が多数の透孔を有し、裏面の外周面に沿ってカセット本体内に嵌合するリブを有し、短辺側の一方側には前記係止溝に記録部裏面に沿って嵌入係合する傾斜状係止片を、他方側にはカセット本体よりも僅かに大き目の突縁部を有し、前記係止部と係合する係止片を有してなる医療検査用カセットにおいて、
前記カセット本体の側壁Ａの内面と嵌合するリブの高さを小さくしたことを特徴とする医療検査用カセットを内容とする（請求項２）。
【００１５】
本発明の第３は、耐薬品性材料からなるカセット本体と蓋を具備してなり、
カセット本体が、上面を開放した、検体を収容し得る方形の容器で、多数の透孔を有し、短辺側の一側壁Ａの外側に底部に向かって末広がり状に傾斜した板状の記録部を備えるとともに、その内側に係止溝を有し、他の側壁Ｂの外側に係止部を有し、
蓋が多数の透孔を有し、裏面の外周面に沿ってカセット本体内に嵌合するリブを有し、短辺側の一方側には前記係止溝に記録部裏面に沿って嵌入係合する傾斜状係止片を、他方側はカセット本体よりも僅かに大き目の突縁部を有し、前記係止部と係合する係止片を有してなる医療検査用カセットにおいて、
前記側壁Ａの内側先端角部を除去した形状からなることを特徴とする医療検査用カセットを内容とする（請求項３）。
【００１６】
好ましい態様として、カセット本体が仕切壁により区画され、蓋が裏面に前記仕切壁を両側から挟着するリブを有する請求項１〜３のいずれか１項に記載の医療検査用カセットである（請求項４）。
【００１７】
好ましい態様として、仕切壁を両側から挟着したリブのいずれか一方又は両方の仕切壁と接する側の先端角部を除去した形状からなる請求項４記載の医療検査用カセットである（請求項５）。
【００１８】
【発明の実施の形態】
以下、本発明を実施例を示す図面に基づいて詳細に説明するが、本発明はかかる実施例のみに限定されないことは云うまでもない。
【００１９】
実施例１
本実施例の医療検査用カセットは、図１、図２に示すように、耐薬品性材料からなるカセット本体１と蓋２とを具備してなり、カセット本体１が、上面を開放した、検体を収容し得る方形の容器で、多数の透孔３を有し、短辺側の一側壁Ａの外側に底部に向かって末広がり状に傾斜した板状の記録部４を備えるとともに、その内側に係止溝５を有し、他の側壁Ｂの外側に係止部６を有してなる。
【００２０】
一方、蓋２が多数の透孔を有し、裏面の外周面に沿ってカセット本体１内に嵌合するリブ８を有し、短辺側の一方側には前記係止溝５に記録部４の裏面に沿って嵌入係合する傾斜状係止片９を、他方側にはカセット本体１よりも僅かに大き目の突縁部１０を有し、前記係止部６と係合する係止片１１を有してなる。
【００２１】
そして、前記カセット本体１の側壁Ａの内面と嵌合するリブ８が、該側壁Ａの先端１ａの内面と接する側８ａの先端角部を除去した形状から構成されている。
【００２２】
上記カセットは、通常、片手にピンセットを持ち、片手で、例えば図２に示す如く、蓋２のＰ点付近に人指し指を掛け、蓋２の突縁部１０に親指をかけた状態でＰ点を人指し指で少し押圧して該Ｐ点の両側を若干上方に反り返らせることにより蓋２の係止片１１をカセット本体１の係止部６から離脱させ、蓋２を上方に取り除き、他方の片手のピンセットを操作して検体をカセット本体１内に収容させる。そして、上記したように、水洗、薬剤処理を行った後、上記と同様の操作で片手で蓋２を取り去り、他方の片手のピンセットで検体１２をカセット本体１から取り出して液状パラフィン１４中に置いてカセットブロックが作成される。
【００２３】
この場合において、蓋２のリブ８は、側壁Ａの先端１ａの内面と接する側８ａがその先端角部を除去した形状からなるため、リブ８と側壁Ａの先端１ａとが引っ掛かるということがなく、蓋２は片手で容易且つスムーズに開けられ、検体のカセット本体１内への収容及び取り出しを容易に行うことができる。
【００２４】
尚、図ではリブ８の側壁Ａの先端１ａの内面と接する側８の先端角部をアールを付けることにより角部を除去しているが、先端から根元部に広がる傾斜状としてもよい。
【００２５】
本発明に使用される耐薬品材料としては、特に制限はなく、例えばポリアセタール、ポリカーボネート、フッ素樹脂等が好適である。
【００２６】
実施例２
本発明は図３、図４に示すように、カセット本体１の側壁Ａの内面と嵌合する、蓋２の裏面に設けたリブ８の該側壁Ａの先端１ａの内面と接する側８ａの高さを小さくした他は実施例１と同じである。
この場合においても、リブ８と側壁Ａの先端１ａとが引っ掛かるということがなく、蓋２は片手で容易且つスムーズに開けられ、検体のカセット本体１内への収容及び取り出しを容易に行うことができる。
【００２７】
尚、図３においては、リブ８の高さが側壁Ｂの側から側壁Ａの側へ連続的に小さくなるように構成されているが、側壁Ａの近傍部のみを小さくしてもよい。
【００２８】
実施例３
本実施例は図５、図６に示すように、カセット本体１の側壁Ａの先端１ａの内側角部を除去した形状（図では傾斜状）とした他は実施例１と同じである。
この場合においても、リブ８と側壁Ａの先端１ａとが引っ掛かるということがなく、蓋２は片手で容易且つスムーズに開けられ、検体のカセット本体１内への収容及び取り出しを容易に行うことができる。
【００２９】
実施例４
本実施例は図７〜図１１に示すように、カセット本体１が仕切壁２３により９個の小室に区画され（図８）、蓋２が上記仕切壁２３を両側から挟着するように、仕切壁２３の両側に２条のリブ８が設けられ（図９）、蓋２のリブ８の側壁Ａの先端１ａの内面と接する側８ａが、その高さを小さくするとともに先端角部を除去した構成からなっている（図１０）。
この場合においても、リブ８と側壁Ａの先端１ａとが引っ掛かるということがなく、蓋２は片手で容易且つスムーズに開けられ、検体のカセット本体１（９個の小室）内への収容及び取り出しを容易に行うことができる。
【００３０】
本実施例の場合は９個の小室からなるので、同時に９個の検体が処理されるものであるが、勿論９個に限られず所望の数の小室を設けることが可能である。しかし、前記したように、既存のミクロトーム等の装置を使用する場合には、カセットの大きさに自ら制約があり、従って、複数個の小室を設ける場合は、２〜９個程度が好ましい。９個を越えると、小室のサイズが小さくなり過ぎ、収容、処理する検体のサイズも制限され不都合な場合がある。
【００３１】
実施例５
本実施例は図１２に示すように、実施例４において、更に仕切壁２３を両側から挟着する２条のリブ８の仕切壁２３と接する側の先端角部を除去した構成とした他は実施例４と同じである。
このように構成することにより、蓋を開ける際に仕切壁２３とリブ８との摩擦が小さくなり、片手での開蓋操作を一層容易に行うことができる。
【００３２】
【発明の効果】
叙上のとおり、本発明によれば、一方の片手でピンセットを持ったまま、他方の片手で蓋を容易且つ安定的に開閉できるので、両手を使用したりする必要がなく効率的であり、また開蓋時に貴重な検体がカセット本体より飛び出すといったトラブルも皆無となり、作業性、効率性は飛躍的に改善される。
【図面の簡単な説明】
【図１】本発明のカセットの実施例を示す概略断面図である。
【図２】図１のカセットの蓋を開ける状態を示す概略図である。
【図３】本発明のカセットの他の実施例を示す概略断面図である。
【図４】図３のカセットの蓋を開ける状態を示す概略図である。
【図５】本発明のカセットの他の実施例を示す概略断面図である。
【図６】図５のカセットの蓋を開ける状態を示す概略図である。
【図７】本発明のカセットの別の実施例を示す上面図である。
【図８】図７のカセットのカセット本体の上面図である。
【図９】図７のカセットの蓋の裏面図である。
【図１０】図７のカセットの長さ方向の断面図である。
【図１１】図７のカセットの巾方向の断面図である。
【図１２】本発明のカセットの更に別の実施例を示す概略断面図である。
【図１３】従来のカセットを示す概略断面図である。
【図１４】従来のカセットを用いて検体をパラフィンに包埋させる状態を示す概略断面図である。
【図１５】図１４で得られるパラフィンブロックをミクロトームでスライスする状態を示す概略図である。
【図１６】従来のカセットの蓋を開ける状態を示す概略図である。
【符号の説明】
１カセット本体２蓋
３透孔４記録部
５係止溝６係止部
７透孔８リブ
９傾斜状係止片１０突縁部
１１係止片１２検体
１３トレイ１４パラフィン
１５カセットブロック１６ミクロトーム
１７アダプター１８基台
１９レバー２０固定腕
２１可動腕２２係止爪[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a medical examination cassette used for producing a microscope specimen for medical examination, and more particularly to a medical examination cassette that can be easily and stably opened and closed with one hand and has improved workability.
[0002]
[Prior art]
As shown in FIG. 13, a conventional cassette of this type includes a cassette body 1 and a lid 2 made of a chemical resistant synthetic resin. The cassette body 1 is a rectangular container having an open upper surface, and has a plurality of through holes 3 at the bottom, and a plate-shaped recording portion 4 that is inclined outwardly toward the bottom on the outer side of one side wall of the short side. It is provided with a locking groove 5 on the inside and a locking portion 6 on the outside of the other side wall.
[0003]
The lid 2 is a detachable plate-like body having a large number of through holes 7 on the plate surface, ribs 8 fitted into the cassette body along the outer peripheral surface of the back surface, and one side on the short side. Has an inclined locking piece 9 that fits and engages along the back surface of the recording portion 4 of the locking groove 5, and has a slightly larger protruding edge on the other side of the short side than the cassette body 1. 10 and a locking piece 11 that engages with the engaging portion 6.
[0004]
In order to prepare a microscope specimen using the cassette, first, the collected specimen 12 is accommodated in the cassette body 1 and the lid 2 is attached, and the name of the subject is recorded in the recording unit 4. The inclined locking piece 9 of the lid 2 engages with the locking groove 5 of the cassette body 1, and the locking piece 11 engages with the locking portion 6 of the cassette body 1 to fix the lid 2.
[0005]
Subsequently, the specimen 12 is washed with water through the through-holes 7 and 3, then the moisture of the specimen 12 is removed with alcohol, and affinity with liquid paraffin to be described later is imparted with xylene.
[0006]
Next, as shown in FIG. 14, liquid paraffin 14 is put in a stainless steel tray 13, and the specimen 12 is taken out from the cassette body 1 and placed in the liquid paraffin 14 to allow the liquid paraffin to permeate the specimen 12. Subsequently, the cassette body 1 is placed on the stepped portion of the tray 13, and the liquid paraffin 14 is poured onto the specimen 12 until the bottom of the cassette body 1 is immersed in the liquid paraffin 14.
[0007]
After the liquid paraffin 14 is solidified, the tray 13 is removed to obtain a cassette block 15 (see FIG. 15) in which the paraffin 14 in which the specimen 12 is embedded adheres to the bottom of the cassette body 1.
[0008]
Next, as shown in FIG. 15, the cassette block 15 is turned over and fixed on the base 18 of the adapter 17 mounted on the microtome 16. The adapter 17 holds and fixes the cassette body 1 between a fixed arm 20 and a movable arm 21 provided on the base 18 by operating the lever 19. At that time, in order to prevent the cassette body 1 from floating due to the inclination of the recording unit 4, the locking claws 22 formed at the tips of both arms 20, 21 engage with the corners of the bottom of the cassette body 1. Subsequently, a portion in which the specimen 12 of the paraffin 14 is embedded is sliced in the direction of the arrow a, and the sliced slice is stained and subjected to other predetermined processing to obtain a microscope specimen.
[0009]
[Problems to be solved by the invention]
The cassette usually has tweezers in one hand, with the other hand holding an index finger near the point P of the lid 2 and a thumb on the protruding edge 10 of the lid 2 as shown in FIG. Then, the point P is slightly pressed with an index finger and the sides of the point P are slightly warped upward to release the locking piece 11 of the lid 2 from the locking portion 6 of the cassette body 1, and the lid 2 is removed upward. The sample is accommodated in the cassette body 1 by operating the tweezers of the other hand. Then, as described above, after washing with water and chemical treatment, the lid 2 is removed with one hand in the same manner as described above, and the specimen 12 is removed from the cassette body 1 with the tweezers of the other hand and placed in the liquid paraffin 14. Cassette block is created.
[0010]
However, in the conventional cassette as described above, the tip corner portion 8a on the inclined locking piece 9 side of the rib 8 provided on the back surface of the lid 2 is caught by the sidewall tip corner portion 1a of the cassette body 1, and the lid If the cover 2 is lifted upward and removed from the cassette body 1, the lid 2 will spring up at the same time as the tip corner 8 a is removed from the sidewall tip corner 1 a. 12 jumps out of the cassette body 1, and the precious specimen 12 is spoiled.
[0011]
If you want to avoid the above trouble, carefully remove the lid 2 from the cassette body 1 with both hands so that the lid 2 does not pop up, then take out the specimen 12 using tweezers and hold the tweezers with one hand. The efficient work of opening the lid with the other hand becomes impossible, and therefore the workability must be greatly reduced.
[0012]
The present invention provides a cassette for medical examination which can solve the above disadvantages, can be easily and stably opened and closed with one hand, and has improved workability.
[0013]
[Means for Solving the Problems]
That is, the first of the present invention comprises a cassette body made of a chemical resistant material and a lid,
The cassette body is a rectangular container with an open upper surface that can accommodate a specimen, and has a large number of through holes and is inclined outwardly toward the bottom outside the one side wall A on the short side. With a locking groove on the inside, a locking portion on the outside of the other side wall B,
The lid has a large number of through holes, a rib that fits into the cassette body along the outer peripheral surface of the back surface, and is fitted into the locking groove along the back surface of the recording portion on one side of the short side. In the cassette for medical examination which has an inclined locking piece to be joined, has a protruding edge part slightly larger than the cassette body on the other side, and has a locking piece engaged with the locking part,
The medical examination cassette is characterized by having a shape in which the corners of the ribs fitted to the inner surface of the side wall A of the cassette body are removed (Claim 1).
[0014]
The second of the present invention comprises a cassette body made of a chemical resistant material and a lid,
The cassette body is a rectangular container with an open upper surface that can accommodate a specimen, and has a large number of through holes and is inclined outwardly toward the bottom outside the one side wall A on the short side. With a locking groove on the inside, a locking portion on the outside of the other side wall B,
The lid has a large number of through holes, a rib that fits into the cassette body along the outer peripheral surface of the back surface, and is fitted into the locking groove along the back surface of the recording portion on one side of the short side. In the cassette for medical examination which has an inclined locking piece to be joined, has a protruding edge part slightly larger than the cassette body on the other side, and has a locking piece engaged with the locking part,
A medical examination cassette characterized in that the height of a rib fitted to the inner surface of the side wall A of the cassette main body is reduced (claim 2).
[0015]
The third of the present invention comprises a cassette body made of a chemical resistant material and a lid,
The cassette body is a rectangular container with an open upper surface that can accommodate a specimen, and has a large number of through holes and is inclined outwardly toward the bottom outside the one side wall A on the short side. With a locking groove on the inside, a locking portion on the outside of the other side wall B,
The lid has a large number of through holes, a rib that fits into the cassette body along the outer peripheral surface of the back surface, and is fitted into the locking groove along the back surface of the recording portion on one side of the short side. In the cassette for medical examination, the other side has a protruding edge part slightly larger than the cassette body, and the other side has a locking piece that engages with the locking part.
The medical examination cassette is characterized by having a shape obtained by removing the inner front end corner of the side wall A (Claim 3).
[0016]
4. The medical examination cassette according to claim 1, wherein the cassette main body is partitioned by a partition wall and the lid has a rib that sandwiches the partition wall from both sides on a back surface. Item 4).
[0017]
The cassette for medical examination according to claim 4, wherein a preferred embodiment is a shape in which a tip corner portion on a side in contact with either or both of the ribs sandwiching the partition wall from both sides is removed. ).
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments. However, it is needless to say that the present invention is not limited to the embodiments.
[0019]
Example 1
As shown in FIGS. 1 and 2, the medical examination cassette according to the present embodiment includes a cassette main body 1 made of a chemical resistant material and a lid 2, and the cassette main body 1 has an open upper surface. And a plate-shaped recording portion 4 that has a large number of through holes 3 and is inclined outwardly toward the bottom on the outer side of one side wall A on the short side, and on the inner side thereof. It has a locking groove 5 and a locking portion 6 on the outside of the other side wall B.
[0020]
On the other hand, the lid 2 has a large number of through holes, a rib 8 that fits into the cassette body 1 along the outer peripheral surface of the back surface, and a recording portion in the locking groove 5 on one side of the short side. 4 is provided with an inclined locking piece 9 which is fitted and engaged along the back surface of 4, and a protruding edge 10 which is slightly larger than the cassette body 1 on the other side and is engaged with the locking portion 6. It has a piece 11.
[0021]
And the rib 8 fitted with the inner surface of the side wall A of the said cassette main body 1 is comprised from the shape which removed the front-end | tip corner | angular part of the side 8a which contact | connects the inner surface of the front-end | tip 1a of this side wall A.
[0022]
The cassette usually has tweezers in one hand, and with one hand, for example, as shown in FIG. 2, the index finger is placed near the point P of the lid 2, and the point P is set with the thumb on the protruding edge 10 of the lid 2. By slightly pressing with the index finger to slightly warp both sides of the point P, the locking piece 11 of the lid 2 is detached from the locking portion 6 of the cassette body 1, the lid 2 is removed upward, and the other hand The tweezers are operated to accommodate the specimen in the cassette body 1. Then, as described above, after washing with water and chemical treatment, the lid 2 is removed with one hand in the same manner as described above, and the specimen 12 is removed from the cassette body 1 with the tweezers of the other hand and placed in the liquid paraffin 14. Cassette block is created.
[0023]
In this case, the rib 8 of the lid 2 has a shape in which the side 8a in contact with the inner surface of the tip 1a of the side wall A is removed from the tip corner, so that the rib 8 and the tip 1a of the side wall A are not caught. The lid 2 can be easily and smoothly opened with one hand, and the specimen can be easily accommodated and taken out from the cassette body 1.
[0024]
In the figure, the corners are removed by rounding the corners on the side 8 of the side wall A of the rib 8 that contacts the inner surface of the tip 1a. However, the corners may be inclined from the tip to the root.
[0025]
There is no restriction | limiting in particular as a chemical-resistant material used for this invention, For example, a polyacetal, a polycarbonate, a fluororesin etc. are suitable.
[0026]
Example 2
In the present invention, as shown in FIGS. 3 and 4, the height of the side 8 a contacting the inner surface of the front end 1 a of the side wall A of the rib 8 provided on the back surface of the lid 2, which fits with the inner surface of the side wall A of the cassette body 1. The rest is the same as the first embodiment except that the length is reduced.
Even in this case, the rib 8 and the tip 1a of the side wall A are not caught, and the lid 2 can be opened easily and smoothly with one hand, and the specimen can be easily accommodated and taken out from the cassette body 1. it can.
[0027]
In FIG. 3, the height of the rib 8 is configured to continuously decrease from the side wall B side to the side wall A side, but only the vicinity of the side wall A may be reduced.
[0028]
Example 3
As shown in FIGS. 5 and 6, the present embodiment is the same as the first embodiment except that the inner corner of the front end 1a of the side wall A of the cassette body 1 is removed (inclined in the drawing).
Even in this case, the rib 8 and the tip 1a of the side wall A are not caught, and the lid 2 can be opened easily and smoothly with one hand, and the specimen can be easily accommodated and taken out from the cassette body 1. it can.
[0029]
Example 4
In this embodiment, as shown in FIGS. 7 to 11, the cassette body 1 is partitioned into nine small chambers by the partition wall 23 (FIG. 8), and the lid 2 sandwiches the partition wall 23 from both sides. Two ribs 8 are provided on both sides of the partition wall 23 (FIG. 9), and the side 8a in contact with the inner surface of the tip 1a of the side wall A of the rib 8 of the lid 2 reduces the height and removes the tip corner. (FIG. 10).
Even in this case, the rib 8 and the tip 1a of the side wall A are not caught, and the lid 2 can be opened easily and smoothly with one hand, and the sample is stored and taken out in the cassette body 1 (9 small chambers). Can be easily performed.
[0030]
In the present embodiment, since nine chambers are formed, nine specimens are processed at the same time. Of course, the number is not limited to nine, and a desired number of chambers can be provided. However, as described above, when an existing device such as a microtome is used, the size of the cassette is restricted by itself. Therefore, when a plurality of small chambers are provided, about 2 to 9 are preferable. If the number exceeds nine, the size of the chamber becomes too small, and the size of the specimen to be accommodated and processed may be limited, which may be inconvenient.
[0031]
Example 5
As shown in FIG. 12, the present embodiment is the same as that of the fourth embodiment except that the tip corners of the two ribs 8 that sandwich the partition wall 23 from both sides are removed from the tip corner portion on the side in contact with the partition wall 23. The same as in Example 4.
With this configuration, the friction between the partition wall 23 and the rib 8 is reduced when the lid is opened, and the lid opening operation with one hand can be performed more easily.
[0032]
【The invention's effect】
As described above, according to the present invention, the tweezers can be easily and stably opened and closed while holding the tweezers with one hand, so it is not necessary to use both hands and is efficient. In addition, there is no trouble that a valuable specimen jumps out of the cassette body when the lid is opened, and workability and efficiency are dramatically improved.
[Brief description of the drawings]
FIG. 1 is a schematic sectional view showing an embodiment of a cassette of the present invention.
FIG. 2 is a schematic view showing a state in which a lid of the cassette of FIG. 1 is opened.
FIG. 3 is a schematic sectional view showing another embodiment of the cassette of the present invention.
4 is a schematic diagram showing a state in which the lid of the cassette of FIG. 3 is opened. FIG.
FIG. 5 is a schematic sectional view showing another embodiment of the cassette of the present invention.
6 is a schematic diagram showing a state in which the lid of the cassette in FIG. 5 is opened. FIG.
FIG. 7 is a top view showing another embodiment of the cassette of the present invention.
8 is a top view of the cassette body of the cassette of FIG. 7. FIG.
9 is a rear view of the lid of the cassette in FIG. 7. FIG.
10 is a cross-sectional view of the cassette of FIG. 7 in the length direction.
11 is a cross-sectional view of the cassette of FIG. 7 in the width direction.
FIG. 12 is a schematic cross-sectional view showing still another embodiment of the cassette of the present invention.
FIG. 13 is a schematic sectional view showing a conventional cassette.
FIG. 14 is a schematic cross-sectional view showing a state in which a specimen is embedded in paraffin using a conventional cassette.
15 is a schematic view showing a state in which the paraffin block obtained in FIG. 14 is sliced with a microtome.
FIG. 16 is a schematic view showing a state in which a lid of a conventional cassette is opened.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cassette main body 2 Lid 3 Through-hole 4 Recording part 5 Locking groove 6 Locking part 7 Through-hole 8 Rib 9 Inclined locking piece 10 Projection edge 11 Locking piece 12 Sample 13 Tray 14 Paraffin 15 Cassette block 16 Microtome 17 Adapter 18 Base 19 Lever 20 Fixed arm 21 Movable arm 22 Locking claw

Claims

It has a cassette body made of chemical-resistant material and a lid,
The cassette body is a rectangular container with an open upper surface that can accommodate a specimen, and has a large number of through holes and is inclined outwardly toward the bottom outside the one side wall A on the short side. With a locking groove on the inside, a locking portion on the outside of the other side wall B,
The lid has a large number of through holes, a rib that fits into the cassette body along the outer peripheral surface of the back surface, and is fitted into the locking groove along the back surface of the recording portion on one side of the short side. In the cassette for medical examination which has an inclined locking piece to be joined, has a protruding edge part slightly larger than the cassette body on the other side, and has a locking piece engaged with the locking part,
A medical examination cassette characterized by having a shape in which the corners of the ribs fitted to the inner surface of the side wall A of the cassette body are removed.

It has a cassette body made of chemical-resistant material and a lid,
The cassette body is a rectangular container with an open upper surface that can accommodate a specimen, and has a large number of through holes and is inclined outwardly toward the bottom outside the one side wall A on the short side. With a locking groove on the inside, a locking portion on the outside of the other side wall B,
The lid has a large number of through holes, a rib that fits into the cassette body along the outer peripheral surface of the back surface, and is fitted into the locking groove along the back surface of the recording portion on one side of the short side. In the cassette for medical examination which has an inclined locking piece to be joined, has a protruding edge part slightly larger than the cassette body on the other side, and has a locking piece engaged with the locking part,
A medical examination cassette characterized in that the height of a rib fitted to the inner surface of the side wall A of the cassette body is reduced.

It has a cassette body made of chemical-resistant material and a lid,
The cassette body is a rectangular container with an open upper surface that can accommodate a specimen, and has a large number of through holes and is inclined outwardly toward the bottom outside the one side wall A on the short side. With a locking groove on the inside, a locking portion on the outside of the other side wall B,
The lid has a large number of through holes, a rib that fits into the cassette body along the outer peripheral surface of the back surface, and is fitted into the locking groove along the back surface of the recording portion on one side of the short side. In the cassette for medical examination, the other side has a protruding edge part slightly larger than the cassette body, and the other side has a locking piece that engages with the locking part.
A medical examination cassette having a shape obtained by removing an inner front end corner of the side wall A.

The cassette for medical examination according to any one of claims 1 to 3, wherein the cassette body is partitioned by a partition wall, and the lid has ribs that sandwich the partition wall from both sides on the back surface.

5. The medical examination cassette according to claim 4, wherein the cassette has a shape in which a tip corner portion on a side in contact with one or both of the ribs sandwiching the partition wall from both sides is removed.