JP2005169303A - Vessel for stirring - Google Patents

Vessel for stirring Download PDF

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JP2005169303A
JP2005169303A JP2003414782A JP2003414782A JP2005169303A JP 2005169303 A JP2005169303 A JP 2005169303A JP 2003414782 A JP2003414782 A JP 2003414782A JP 2003414782 A JP2003414782 A JP 2003414782A JP 2005169303 A JP2005169303 A JP 2005169303A
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stirrer
container
stirring
needle
convex portion
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JP2005169303A5 (en
JP4385249B2 (en
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Toshiaki Yamaguchi
敏明 山口
Nobuhiro Kobayashi
信弘 小林
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Nippon Pulse Motor Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vessel for stirring constituted in such a manner that a rotating stirrer 4 is supported by a supporting part 21 to be the center of rotation to be apart from the bottom of a vessel 2 resulting in small rotation resistance and is driven to be rotated smoothly with the movement of a magnet rotary body 3 and stirring force is increased by rotating while rocking the stirrer 4 with the gap from the bottom surface of the vessel and when carrying out a suction work after stirring, the risk that the tip of a descending needle 5 is in contact with the stirrer 4 is avoided and almost of all liquid in the vessel is sucked by the needle 4. <P>SOLUTION: A projecting part 21 is provided on the nearly center part of the bottom surface part of the vessel, the projecting part 21 provides the rotation supporting part for supporting the rotating stirrer 4 to be slightly apart from the bottom surface of the vessel to rotate and rock and the stopping position of the rod-like stirrer 4 is shifted from the extending line of the ascending and descending of the needle 5 by an inclined part provided on the projecting part 21 to allow the stirrer 4 to slip down from the top of the projecting part 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、容器内の液体を、容器内に投入された撹拌子を回転させて混合や撹拌等を行う工程や、撹拌子がセットされた状態でニードルにより吸入する工程に用いられる撹拌用容器に関する。   The present invention relates to a stirring container used in a step of mixing and stirring the liquid in the container by rotating the stirring bar charged in the container, or a step of sucking with a needle while the stirring bar is set About.

血液などの検体(液体)の反応解析などを行う際には、一つの検体を複数の容器に小分けし、数種類の試薬を混入する分注工程と、各容器内にセットされた撹拌子を回転させることにより検体と試液を混合するなどの撹拌工程を経て行われるが、さらに、撹拌子がセットされたままの状態から吸入作業を行う場合がある。
この様な作業工程で使用される容器は、一検体をロット処理するために比較的細筒径の試験管など、所定の規格寸法にて形成された外径9mm(以下のものも含む)ものが一般的に用いられている(例えば、特許文献1参照)。
When performing a reaction analysis of a sample (liquid) such as blood, subdivide one sample into multiple containers, and dispense the mixing process with several types of reagents, and rotate the stirrer set in each container. This is performed through a stirring process such as mixing the sample and the test solution, but in some cases, the inhalation operation may be performed from a state where the stirring bar is still set.
Containers used in such work processes are those with an outer diameter of 9 mm (including the following) formed with a predetermined standard size, such as a test tube with a relatively small cylindrical diameter, in order to process one specimen in a lot. Is generally used (see, for example, Patent Document 1).

しかしながら、細筒径の容器内における撹拌子を、マグネット回転体の強い磁力を伝達して高速回転させたり、渦流を生成させるような撹拌が難しいと共に、撹拌子の長さを、マグネット回転体のスムーズな磁力伝達と回転を行わしめるためにあまり短くすることができず、容器内径よりも僅かに短く設定するなどの制約を受ける。しかも、ビーカーなどの太筒形の容器の場合の如く、回転停止した撹拌子がマグネット回転体の磁力伝達域から大きく外れてしまう(例えば、特許文献2参照)ことがない反面、撹拌子がニードルの昇降線上に位置してしまう割合が多くなる。そのため、上記のような吸入作業時にニードル先端が撹拌子に当接して損傷してしまう危惧が生じ、ニードル先端を撹拌子の厚さよりも上部の位置で停止させることで当接回避を行っており、その結果、ニードル先端を容器底面部に近接した位置まで下降することができず、小分けされた検体を最後まで吸入することができず、小分け分量を多めにするなど、限られた検体を有効に使用することができないばかりか、小分け分量が少量の場合には、撹拌後の吸入作業を阻害する要因となっていた。
特開平11−137987号公報 特開2000−126577号公報
However, it is difficult to rotate the stirrer in the container with a small cylindrical diameter at high speed by transmitting the strong magnetic force of the magnet rotating body or to generate eddy currents. In order to achieve smooth magnetic force transmission and rotation, it cannot be made very short, and is subject to restrictions such as setting it slightly shorter than the inner diameter of the container. In addition, as in the case of a thick cylindrical container such as a beaker, the stirrer that has stopped rotating does not greatly deviate from the magnetic force transmission area of the magnet rotating body (see, for example, Patent Document 2), but the stirrer is a needle. The ratio of being on the vertical line increases. Therefore, there is a concern that the needle tip may come into contact with the stirrer and damage during the suction operation as described above, and contact is avoided by stopping the needle tip at a position above the thickness of the stirrer. As a result, the tip of the needle cannot be lowered to a position close to the bottom of the container, the sample that has been subdivided cannot be inhaled to the end, and a limited amount of sample can be effectively used. In addition to the fact that it cannot be used for a small amount, if the subdivided amount is small, it has become a factor that hinders the suction work after stirring.
Japanese Patent Laid-Open No. 11-137987 Japanese Patent Laid-Open No. 2000-126777

本発明は、上記の如き問題点を一掃すべく創案されたものであって、マグネット回転体の磁力伝達により従動回転する撹拌子がセットされる容器でありながら、容器底面部の略中央部位に凸状部を設けることにより、
一の目的は、撹拌子の回転時においては、凸状部を、撹拌子を支承しその回転中心となる回転支承部として機能させ、他の部分を容器底部底部から離間させるようにし、撹拌子の容器に対する回動抵抗を小さなものとして、スムーズな従動回転と、容器底面との間隙によって、撹拌子の両端部側が揺動しながら回転できる撹拌用容器を提供するにある。
また、他の一の目的は、撹拌子に、ワイヤ状の磁性棒体を用いることにより、回転停止した状態において、凸状部で回転支承されていた撹拌子を、凸状部の傾斜面から自重とマグネット回転体の磁着力により湾曲傾斜面を滑り落ちて位置ズレさせ、ニードルの昇降線上に位置してしまうことを回避することで、ニードル先端を容器底部に対して可及的に近接下降できるようにし、容器内の液体の殆どを吸入して、限られた検体を有効に使用することができる撹拌用容器を提供するにある。
The present invention was devised to eliminate the above-mentioned problems, and is a container in which a stirrer that is driven to rotate by transmission of magnetic force of a magnet rotating body is set, but at a substantially central portion of the bottom surface of the container. By providing a convex part,
One purpose is that when the stirrer rotates, the convex part functions as a rotation support part that supports the stirrer and serves as the center of rotation, and separates the other part from the bottom of the container bottom. In order to provide a stirring container that can rotate while the both ends of the stirrer oscillate by a smooth driven rotation and a gap between the bottom surface of the container.
Another object of the present invention is to use a wire-like magnetic rod for the stirrer, so that the stirrer that is rotatably supported by the convex part can be removed from the inclined surface of the convex part when the rotation is stopped. The tip of the needle descends as close as possible to the bottom of the container by sliding the curved inclined surface by its own weight and the magnetizing force of the magnet rotating body and shifting it so that it is not on the lifting line of the needle. An object of the present invention is to provide a stirring container capable of inhaling most of the liquid in the container and effectively using a limited sample.

上記課題を解決するために本発明が採用した技術手段は、撹拌装置を構成するマグネット回転体の磁力伝達によって従動回転する撹拌子をセットし、該撹拌子によって容器内の液体を撹拌するための撹拌用容器であって、該容器の底面部の略中央部位に上方に膨出する凸状部を設け、該凸状部を、回転する撹拌子を容器底面から僅かに離間支承せしめて揺動回転を可能とする回転支承部に構成してあることを特徴とするものである。
また、上記課題を解決するために本発明が採用した技術手段は、マグネット回転体の磁力伝達により容器内にセットされた撹拌子を従動回転する撹拌装置と、昇降可能なニードルを備えた分注装置とによって、容器内の液体を、前記撹拌子による撹拌と、前記ニードルによる吸入とを行わしめるための撹拌用容器であって、前記撹拌子を、ワイヤ状の磁性棒体で構成する一方、前記容器の底面部には、前記ニードルの先端を容器内底面部に近接挿入した際に前記撹拌子との当接を回避すべく、撹拌子の停止位置をニードルの昇降延長線上から位置ズレさせる傾斜面を有する凸状部が設けられていることを特徴とするものである。
The technical means adopted by the present invention in order to solve the above-mentioned problem is to set a stirrer that is driven and rotated by the magnetic force transmission of the magnet rotating body constituting the stirrer, and to stir the liquid in the container by the stirrer A stirring vessel, which is provided with a convex portion that bulges upward at a substantially central portion of the bottom portion of the vessel, and the convex portion is swung with a rotating stirring bar supported slightly away from the bottom surface of the vessel It is characterized in that it is configured in a rotation support portion that enables rotation.
Further, the technical means adopted by the present invention to solve the above-mentioned problems are a dispensing device provided with a stirring device that rotates a stirrer set in a container by transmission of magnetic force of a magnet rotating body, and a needle that can be raised and lowered. A stirring vessel for stirring the liquid in the container by the stirrer and the suction by the needle by the apparatus, wherein the stirrer is constituted by a wire-like magnetic rod, The stop position of the stirrer is shifted from the up-and-down extension line of the needle so as to avoid contact with the stirrer when the tip of the needle is inserted close to the bottom surface of the container. A convex portion having an inclined surface is provided.

本発明における撹拌用容器は、マグネット回転体の磁力伝達により従動回転する撹拌子を容器内にセットした際、
該容器底面部の略中央部位には、前記撹拌子が回転した際に乗り上げ可能な凸状部を設け、該凸状部を、撹拌子を容器底面から僅かに離間せしめて揺動回転を可能とする回転支承部に構成してあるので、
また、撹拌子を、ワイヤ状の磁性棒体で構成する一方、その停止時においては、容器の底面部には、前記ニードルの先端を容器内底面部に近接挿入した際に前記撹拌子との当接を回避すべく、撹拌子の停止位置をニードルの昇降延長線上から位置ズレさせる傾斜面を有する凸状部が設けてあるので、
The stirring container in the present invention, when the stirrer that is rotated by the magnetic force transmission of the magnet rotating body is set in the container,
A convex portion is provided at a substantially central portion of the bottom surface of the container so that the stirrer can be ridden when the stirrer rotates. The convex portion can be rotated and rotated by slightly separating the stirrer from the bottom surface of the container. Because it is configured in the rotating bearing part
The stirrer is composed of a wire-like magnetic rod, and when the stirrer is stopped, the bottom of the container is connected to the stirrer when the tip of the needle is inserted close to the bottom of the container. In order to avoid contact, there is provided a convex part having an inclined surface that shifts the stop position of the stirring bar from the extension line of the needle,

前記回転支承部と傾斜手段を同一の円弧状凸部として形成することができ、撹拌子の回転時においては、撹拌子が凸状部に乗った状態、つまり、凸状部の頂部により回転中心として支承され、容器底部から浮き上がった状態で回転させることができ、撹拌子の容器に対する回動抵抗を小さなものとし得て、マグネット回転体が殊更強い磁力を有しなくとも良好な磁力伝達が図られ、従来の如き円盤状のマグネット付きのものや、浮遊するように形成したものを用いる必要性を無くし、長尺ワイヤを切断した安価な線棒体のものを用いることができるようになり、しかも、形成された容器底面との間隙の存在によって、使用される試液の粘度、性質や種類等、液体の物性に抗して両端部側が揺動しながら回転させることができる。その結果、撹拌力が大幅に向上されると共に、ステッピングモータの駆動特性を利用して、各撹拌子を低速から高速へ、一定速度へと任意に速度切換えする精度の良い同期回転制御を可能にし、変化性に富んだ渦流生成による撹拌を行うことができる。   The rotating support part and the tilting means can be formed as the same arcuate convex part, and when the stirrer rotates, the stirrer is on the convex part, that is, the center of rotation by the top of the convex part. Can be rotated while being lifted from the bottom of the container, and the rotation resistance of the stirrer to the container can be made small, and even if the magnet rotating body does not have a particularly strong magnetic force, good magnetic force transmission can be achieved. The need to use a conventional disk-shaped magnet or a floating magnet, and the use of an inexpensive wire rod cut from a long wire can be used. Moreover, due to the presence of the gap with the bottom surface of the formed container, the both ends can be rotated while oscillating against the physical properties of the liquid, such as the viscosity, nature and type of the test solution used. As a result, the agitation force is greatly improved, and using the drive characteristics of the stepping motor, it is possible to perform accurate synchronous rotation control that arbitrarily switches the speed of each stirrer from low speed to high speed. In addition, the agitation can be performed by generating eddy currents that are rich in variability.

また、容器内径よりも僅かに短く設定するなどの制約を受ける細筒径の容器にワイヤ状の磁性棒体を用いたとしても、撹拌子の回転停止時には、撹拌子が円弧状凸部の傾斜面から自重とマグネット回転体の磁着力により傾斜面を滑り落ちて位置ズレし、ニードルの昇降線上に位置してしまうことを回避することができ、結果、ニードル先端を容器底部に対して可及的に近接下降することができ、容器内の液体の殆どを吸入できるようになり、限られた検体を有効に使用することができる。
Even if a wire-like magnetic rod is used for a thin cylindrical container subject to restrictions such as setting it slightly shorter than the inner diameter of the container, the stirrer is inclined by the arc-shaped convex portion when the stirring bar stops rotating. It is possible to avoid slipping off the inclined surface due to its own weight and the magnetizing force of the magnet rotating body from the surface and shifting the position of the needle on the lifting line of the needle. It is possible to ascend and descend close to each other, so that most of the liquid in the container can be inhaled, and a limited sample can be used effectively.

以下、本発明の実施の形態を、好適な実施の形態として例示する撹拌用容器を図面に基づいて詳細に説明する。
図1は撹拌装置の全体構成図、図2はマグネット回転体の上面図、図3は容器ホルダの上面図である。図に示すように、1は撹拌装置であって、該撹拌装置1は、試験管等の撹拌用容器2を一列状に都合4本セットすることのできる容器ホルダ11と、該容器ホルダ11にセットされた各容器2……の外部直下面域にそれぞれ一対一の関係で組として連設された4つのマグネット回転体3……と、各マグネット回転体3……をモータ(ステッピングモータ)12の駆動に連動連結して同期回動すべく設けられた駆動伝達手段13とを備えている。各容器2内には、血液等の所定の検体が予め別場所にて定量小分けされており、各検体に対して、分注装置(図示しない)に備えられた上下(昇降)、左右、前後方向に移動可能なニードル5により、所定の試液等を吐出するなどの分注作業が行われ、各容器2内にセットされた撹拌子4……を、マグネット回転体3……の磁力伝達により従動せしめて一斉回転可能に構成されている。
DESCRIPTION OF EMBODIMENTS Hereinafter, an agitation container illustrating an embodiment of the present invention as a preferred embodiment will be described in detail with reference to the drawings.
FIG. 1 is an overall configuration diagram of a stirring device, FIG. 2 is a top view of a magnet rotating body, and FIG. 3 is a top view of a container holder. As shown in the figure, 1 is a stirring device, and the stirring device 1 is provided with a container holder 11 that can conveniently set four stirring containers 2 such as test tubes in a line, and the container holder 11. Four magnet rotating bodies 3... Connected in a one-to-one relationship with the outer direct lower surface area of each set of containers 2... And a motor (stepping motor) 12. Drive transmission means 13 provided to be synchronously rotated in conjunction with the driving of the motor. In each container 2, a predetermined sample such as blood is preliminarily aliquoted at different locations, and for each sample, up and down (lifting), left and right, front and rear provided in a dispensing device (not shown). A dispensing operation such as discharging a predetermined reagent solution is performed by a needle 5 that can move in the direction, and the stirrer 4... Set in each container 2 is transferred to the magnetic rotor 3. It is configured to be able to rotate all at once.

前記容器ホルダ11は、アルミニウム製(非磁性の板体で有ればよい)の仕切板14上に設けられており、この容器ホルダ11には、外径9mmの容器2を略接触状にセットできるよう円形孔を連続して重合形成させた長形のセット孔111が設けられている。なお、容器ホルダ11は、一列状に容器2を4本セットできるようにしたがこれに限定されず、任意の本数をセットできるようにし、マグネット回転体3も該容器2に対して一対の関係で配設され、複数列に構成しても良く、また、撹拌装置1を、同一作業テーブルに複数設けて実施しても良い。   The container holder 11 is provided on a partition plate 14 made of aluminum (which may be a nonmagnetic plate), and a container 2 having an outer diameter of 9 mm is set in the container holder 11 in a substantially contact state. An elongated set hole 111 in which circular holes are continuously formed by polymerization is provided so that it can be formed. The container holder 11 can set four containers 2 in a row, but is not limited to this, and can set an arbitrary number, and the magnet rotating body 3 has a pair of relations with the container 2. May be arranged in a plurality of rows, or a plurality of stirring devices 1 may be provided on the same work table.

前記マグネット回転体3は、マグネットを磁着することのできる強磁性ステンレス材にて成形された円形の基盤31と、該基盤31上に対向配設された一対のマグネット32(32a、32b)とからなり、基盤31、およびマグネット32aと32bの間隔は、それぞれ容器2の外観寸法幅(筒径)と略同幅内の8mm(容器2を接触配置しても相互に接触しない幅)に設定されている。マグネット32は、略外径3mm×高さ5mmの円筒形のものを用い、マグネット32aの磁極は上側をS極、下側をN極とし、マグネット32bの磁極は上側をN極、下側をS極として対設させて、磁力線が上下方向に背反して働くようになっている。つまり、一方のマグネット32bのN極が上面に、他方のマグネット32aのN極が下面に形成され、各々のN極からの磁力線が、マグネット32bからは上方の撹拌子4に向けて出され、マグネット32aからは下方の基盤31に向けて出されて、図1の矢視の如くマグネット32b−撹拌子4−マグネット32a−基盤31へと磁力伝達がなされることで磁界が形成されるようになっている。   The magnet rotating body 3 includes a circular base 31 formed of a ferromagnetic stainless steel on which a magnet can be magnetically attached, and a pair of magnets 32 (32a, 32b) disposed opposite to the base 31. The distance between the base 31 and the magnets 32a and 32b is set to 8 mm (a width that does not contact each other even if the container 2 is placed in contact) within the same width as the outer dimension width (cylinder diameter) of the container 2. Has been. The magnet 32 has a cylindrical shape with an outer diameter of approximately 3 mm and a height of 5 mm. The magnetic pole of the magnet 32a has an S pole on the upper side and an N pole on the lower side, and the magnetic pole of the magnet 32b has an N pole on the upper side and a lower side. It is made to face as an S pole, and a magnetic line of force works upside down in the up-and-down direction. That is, the N pole of one magnet 32b is formed on the upper surface and the N pole of the other magnet 32a is formed on the lower surface, and the magnetic lines of force from each N pole are emitted from the magnet 32b toward the upper stirring bar 4. A magnetic field is formed from the magnet 32a by being directed toward the lower base 31 and transmitting magnetic force to the magnet 32b-stirrer 4-magnet 32a-base 31 as shown by the arrows in FIG. It has become.

また、近接配置された各マグネット回転体3……は、隣設するマグネット32の磁極同士が互いに回転位置で対向しないよう異なる磁軸向きをもって配置されている。つまり、マグネット32aと32bとで形成される磁軸が、図2に示すように、隣設する相互間でマグネット同士の磁力干渉を防ぐために90度づつ角度を変えて、左から水平−垂直−水平−垂直となるよう順次角度ズレさせて配置してある。なお、この配設角度は磁極同士を対面させない態様において任意であり、要は各マグネット回転体3……の回動時に互いに直線上に配列されてしまうことがないもので有ればよい。   Further, the magnet rotating bodies 3... Arranged close to each other are arranged with different magnetic axis directions so that the magnetic poles of the adjacent magnets 32 do not face each other at the rotational position. That is, as shown in FIG. 2, the magnetic axes formed by the magnets 32a and 32b are changed from each other by 90 degrees in order to prevent magnetic interference between the magnets adjacent to each other. The angles are sequentially shifted so as to be horizontal-vertical. In addition, this arrangement angle is arbitrary in a mode in which the magnetic poles do not face each other, and it suffices that the arrangement angles are not arranged in a straight line when the magnet rotating bodies 3 are rotated.

前記基盤31には、所定間隔を存して上下に設けられたベースフレーム15、15に対してベアリングを介して回転軸33が軸支されており、該回転軸33により前記駆動伝達手段としての樹脂製またはゴム質製の弾性ローラ13が軸着されている。
各マグネット回転体3……は、それぞれ隣接する弾性ローラ13同士を弾圧係合することで回転が伝達されるよう連動連結され、任意の回転軸33の一つ(図1の右から2番目)をモータ12の駆動軸33aに直結させて、互いに異方向に同期回動すべく構成されている。
A rotating shaft 33 is pivotally supported on the base 31 via bearings with respect to base frames 15, 15 provided above and below at a predetermined interval. The rotating shaft 33 serves as the drive transmission means. A resin or rubber elastic roller 13 is attached to the shaft.
Each of the magnet rotating bodies 3 is interlocked and coupled so that rotation is transmitted by elastically engaging adjacent elastic rollers 13 to each other, and one of the arbitrary rotating shafts 33 (second from the right in FIG. 1). Are connected directly to the drive shaft 33a of the motor 12, and are configured to rotate synchronously in different directions.

前記撹拌子4は、液体(検体と試液)の入った容器2内に投入され、撹拌作業後に容器2に同伴して処理されることから、ワイヤ状の磁性棒体として太さ(厚さ)約1.5mmのステンレス製ワイヤを長さ約5mmにカッティングしたマグネット32の幅(S−N磁極両端幅)よりも短い寸法のものを用い、その端部がマグネット32の中心位置となるようマグネット32aと32bの間に配置される長さに設定されている。
なお、撹拌子4は、磁力を有しない強磁性体を用いたが、マグネットを用いても良く、また、その材質は検体等との反応を起こさないのものであれば任意のものを用いることができる。さらに、鉄など液体と反応するものであってもフッ素樹脂等の被膜材で被覆することで用いることができる。また、撹拌子4の両端部を切断時に潰すなどして扁平状に形成させ、あるいは、スパイラル溝形成されたねじり棒体などを用いても良い。
The stirrer 4 is placed in a container 2 containing a liquid (specimen and test solution), and is processed along with the container 2 after the stirring operation. Therefore, the stirrer 4 has a thickness (thickness) as a wire-like magnetic rod. Use a magnet with a length shorter than the width of the magnet 32 (S-N magnetic pole width at both ends) obtained by cutting a stainless steel wire of about 1.5 mm to a length of about 5 mm. The length is set between 32a and 32b.
The stirrer 4 is made of a ferromagnetic material having no magnetic force. However, a magnet may be used, and any material may be used as long as the material does not cause a reaction with a specimen or the like. Can do. Furthermore, even if it reacts with a liquid such as iron, it can be used by coating with a coating material such as a fluororesin. Alternatively, both ends of the stirring bar 4 may be flattened by crushing at the time of cutting, or a torsion bar having a spiral groove may be used.

図4は、本発明の撹拌用容器2の実施形態を示すものであって、該容器2の底面部の略中央に、緩やかな傾斜面を形成する円弧形の凸状部21が設けられており、該凸状部21は、撹拌子4が回転時に容易に乗り上げ可能な高さ、所謂容器底面から0.5mmの突出高さhをもって容器2に一体形成されている。つまり、凸状部21は、撹拌子4の直径(厚さ)約1.5mmに対してその半径よりも低くい約1/3の高さに設定されており、撹拌子4を回転した際、撹拌子4は、回転しながら前記円弧状の傾斜面を滑り上がり、図4(A)に示す如く容器底面から凸状部21の高さ分だけ僅かに離間した状態で回転するよう、凸状部21の頂部に支承させ、その回転中心となる回転支承部として構成されている。この撹拌子4と容器底部との間隙が、撹拌子4を容器底部から浮き上がらせた状態で回転することにより、その両端側が液体の粘度等の物性抵抗を受けながら、自然に上下にばたつくように揺動しながらの回転を可能とする構成となっている。   FIG. 4 shows an embodiment of the stirring vessel 2 of the present invention, and an arc-shaped convex portion 21 that forms a gently inclined surface is provided at the approximate center of the bottom surface portion of the vessel 2. The convex portion 21 is integrally formed with the container 2 with a height at which the stirrer 4 can easily climb when rotating, that is, a protruding height h of 0.5 mm from the so-called bottom surface of the container. That is, the convex portion 21 is set to a height of about 1/3 that is lower than the radius with respect to the diameter (thickness) of the stirrer 4 of about 1.5 mm. The stirrer 4 slides up the arcuate inclined surface while rotating, and protrudes so as to rotate in a state slightly spaced from the bottom of the container by the height of the convex portion 21 as shown in FIG. It supports on the top part of the shape part 21, and is comprised as a rotation support part used as the rotation center. The gap between the stirrer 4 and the bottom of the container is rotated in a state where the stirrer 4 is lifted from the bottom of the container so that both ends of the stirrer 4 naturally flutter up and down while receiving physical resistance such as the viscosity of the liquid. The structure enables rotation while swinging.

そして、撹拌子4の回転を停止した際、該撹拌子4は、惰性回転を伴って自身の自重とマグネット32の磁着力により、前記円弧状の傾斜面を滑り落ち、図4(B)に示す如く容器底面へ移動させて、その停止位置をニードル5の昇降延長線上から位置ズレさせる構成となっている。つまり、凸状部21は、撹拌後の吸入作業時に、容器内に挿入されたニードル5の先端を、底面部に近接下降した際に、前記撹拌子4との当接を回避し破損を防止するようになっている。
なお、撹拌子4の移動量は、外径9mmの容器2に対し長さ約5mm撹拌子4をセットしたものであるので、その両端に各略1.5mm程度の隙間をもって移動することが可能であるが、凸状部21の裾経の大きさや湾曲率にもよるが、撹拌子4がワイヤ(円筒)状のものであれば、その側面側でニードル先端と僅かに接触させて押動できる程度に移動させれば良い。
また、本実施例における凸状部21は、撹拌子4を回転した際の回転支承部としての機能と、撹拌子4をセットした状態でニードル5の吸入作業を可能とするニードル5の先端との当接回避手段としての機能を併せ持つものとして構成したものであるが、それぞれの機能の一方のみを具備するように構成することも任意であり、さらに、凸状部21の形成位置をニードル5の昇降延長線上(マグネット回転体3の回転中心)から位置ズレして設けても良く、その形状についても、容器の底面全体を湾曲形成させるなど前記何れかまたは両方の機能を具備する種々のものに形成しても良い。
Then, when the rotation of the stirrer 4 is stopped, the stirrer 4 slides down the arc-shaped inclined surface due to its own weight and the magnetizing force of the magnet 32 along with inertial rotation, as shown in FIG. As shown, it is moved to the bottom surface of the container, and the stop position is shifted from the extension line of the needle 5. In other words, the convex portion 21 prevents contact with the stirrer 4 and prevents damage when the tip of the needle 5 inserted into the container is lowered close to the bottom surface during suction work after stirring. It is supposed to be.
The amount of movement of the stirrer 4 is a set of the stirrer 4 having a length of about 5 mm with respect to the container 2 having an outer diameter of 9 mm. However, depending on the size of the skirt of the convex portion 21 and the curvature, if the stirrer 4 has a wire (cylindrical) shape, it is pushed slightly by contacting the tip of the needle on the side surface side. Move as much as possible.
Moreover, the convex part 21 in a present Example has the function as a rotation support part at the time of rotating the stirring element 4, and the front-end | tip of the needle 5 which enables the suction | inhalation operation | work of the needle 5 in the state which set the stirring element 4. However, it may be configured to have only one of the functions, and the convex portion 21 may be formed at the position where the needle 5 is formed. May be provided so as to be displaced from the up-and-down extension line (rotation center of the magnet rotating body 3), and various shapes having either or both of the above-described functions such as bending the entire bottom surface of the container. You may form in.

叙述の如く構成された本発明の実施例の形態において、血液等の検体に対して所定の試液等を吐出するなどの分注作業を終えた液体の入った各容器2内にセットされたそれぞれの撹拌子4……を、モータ駆動に連動してそれぞれのマグネット回転体3を同期回動させ、その磁力伝達により従動させて一斉に回転させてロット処理される。この様な作業工程に用いられる容器ホルダ11や容器2は、所定の規格寸法にて形成されており、例えば、マルチピペット(薬品吐出器具)や分注装置の分注ノズル、特開平8−122336公報所載のようなカートリッジ容器、容器ホルダ(カートリッジラック)などの多くは、外径9mm(以下のものも含む)の試験管など細筒径の容器2を用いた場合を前提に、9mmピッチで配列されて製作されているのが一般的であり、用いられる撹拌子にも容器内径よりも僅かに短く設定するなどの制約を受けることになる。   In the form of the embodiment of the present invention configured as described above, each set in each container 2 containing a liquid for which a dispensing operation such as discharging a predetermined test solution to a specimen such as blood is completed. Are rotated in synchronism with each other by rotating the magnet rotors 3 in synchronism with the motor drive, and are rotated all at once by the magnetic force transmission. The container holder 11 and the container 2 used in such an operation process are formed with a predetermined standard size. For example, a multipipette (chemical discharge device), a dispensing nozzle of a dispensing device, and JP-A-8-122336. Many of the cartridge containers and container holders (cartridge racks) described in the gazette have a 9 mm pitch on the premise that a thin tube diameter container 2 such as a test tube having an outer diameter of 9 mm (including the following) is used. In general, the stirrer used is also restricted by being set slightly shorter than the inner diameter of the container.

しかしながら、本発明における撹拌用容器2には、その容器底面部の略中央部位に、上方に膨出する凸状部21が設けられており、この凸状部21を、回転する撹拌子4を容器底面から僅かに離間させて支承せしめ、揺動回転を可能とする回転支承部として構成してあるため、
撹拌子4の回転時に、撹拌子4が凸状部21に乗った状態、つまり、凸状部21の頂部により回転中心として支承され、容器底部から浮き上がった状態で回転させることができ、撹拌子4の容器に対する回動抵抗を小さなものとし得て、マグネット回転体3が殊更強い磁力を有しなくとも良好な磁力伝達が図られ、従来の如き円盤状のマグネット付きのものや、浮遊するように形成したものを用いる必要性を無くし、長尺ワイヤを切断した安価な棒体のものを用いることができるようになり、しかも、形成された容器底面との間隙の存在によって、使用される試液の粘度、性質や種類等、液体の物性に抗して両端部側が揺動しながら回転させることができる。その結果、撹拌力が大幅に向上され混合等が確実に行われると共に、ステッピングモータの駆動特性を利用して、各撹拌子を低速から高速へ、一定速度へと任意に速度切換えする精度の良い同期回転制御を可能にし、変化性に富んだ渦流生成による撹拌を行うことができると共に、多連式の撹拌装置1においても各撹拌子4……の一斉回転を容易ならしめ、全体を均一に撹拌できる。
However, the stirring container 2 in the present invention is provided with a convex portion 21 that bulges upward at a substantially central portion of the bottom surface portion of the container. Because it is supported as being spaced slightly away from the bottom of the container, it is configured as a rotating support that enables rocking rotation.
When the stirrer 4 is rotated, the stirrer 4 can be rotated with the stirrer 4 riding on the convex portion 21, that is, supported by the top of the convex portion 21 as a center of rotation and floating from the bottom of the container. The rotational resistance to the container 4 can be made small, and even if the magnet rotating body 3 does not have a particularly strong magnetic force, good magnetic force transmission can be achieved. This eliminates the need to use a formed rod, and allows the use of an inexpensive rod cut from a long wire, and the presence of a gap between the formed vessel bottom and the reagent used. The two end portions can be rotated while oscillating against the physical properties of the liquid, such as the viscosity, nature and type of the liquid. As a result, the agitation force is greatly improved, mixing and the like are performed reliably, and the driving characteristics of the stepping motor are used to accurately switch the speed of each agitator from low speed to high speed to a constant speed. Synchronous rotation control is possible, and it is possible to perform agitation by generating a variety of eddy currents. In addition, in the multi-type agitator 1, each agitator 4. Can be stirred.

特に本実施例においては、前記撹拌子4を、ワイヤ状または板状の磁性棒体で構成すると共に、凸状部21は、単に段差状に形成しても良いが、その外周に容器底面部から緩やかに傾斜する湾曲円弧形状の傾斜面を有しているので、撹拌子として棒体のものを用いたとしても、回転し始めた撹拌子4をスムーズに滑り上がらせて、その頂部を回動支持点として撹拌子4を支承することができ、容器との接触を最小限のものとし得て、小さな回動抵抗をもってスムーズな回転を行うことができる。   In particular, in the present embodiment, the stirrer 4 is composed of a wire-like or plate-like magnetic rod, and the convex portion 21 may be simply formed in a step shape, but the container bottom portion is formed on the outer periphery thereof. Therefore, even if a stirrer is used as a stirrer, the stirrer 4 that has started rotating smoothly slides up and rotates its top. The stirrer 4 can be supported as a moving support point, the contact with the container can be minimized, and smooth rotation can be performed with a small rotational resistance.

さらに、この凸状部21は、撹拌後に吸入作業工程が必要となる場合に、挿入されるニードル5の先端が撹拌子4に当接してしまうことを回避する機能を有している。すなわち、外径9mm以下の細筒径容器に用いられる撹拌子4は、前述のとおり容器内径よりも僅かに短い長さ(5mm)であるため、回転を停止した際、マグネット回転体3の磁力伝達域から外れてしまうことが無く、撹拌子がニードルの昇降線上に位置してしまう割合が多くなり、ニードル5の先端が撹拌子4に当接して損傷してしまう危惧が生じる。
しかしながら、凸状部21は傾斜面を有して形成されており、回転停止された撹拌子4は、凸状部21の頂部から自身の自重とマグネット32の磁着力により、前記傾斜面を滑り落ちて容器底面へ移動させて、ニードル5の昇降延長線上から位置ズレさせるように構成されている。したがって、たとえ容器2内に撹拌子4が存在したまま吸入作業を行っても、ニードル5の先端が撹拌子4に当接して損傷してしまうことを確実に回避することができ、容器2の底部に対して可及的に近接下降する制御、すなわち、常に凸状部21の頂部、または傾斜部に近接した下降位置に位置決めする昇降制御をおこなうことができ、小分け分量の多少にかかわらず容器内の液体の殆どを吸入することが可能となり、限られた検体を有効に使用することができるばかりか、撹拌後における吸入(分注)作業の実効性を実質的なものとすることができる。なお、容器内の液体の残存量は、凸状部21の突出高さが0.5mmである場合、その裾経(幅)の割合や、容器の底角部の湾曲率を撹拌子4の回転と滑落に影響を与えない範囲で大きくするなどの変更により、さらに少量にすることができる。
Further, the convex portion 21 has a function of preventing the tip of the inserted needle 5 from coming into contact with the stirrer 4 when a suction operation step is required after stirring. That is, since the stirrer 4 used in the thin cylindrical container having an outer diameter of 9 mm or less has a length (5 mm) slightly shorter than the inner diameter of the container as described above, the magnetic force of the magnet rotating body 3 when the rotation is stopped. The rate at which the stirrer is positioned on the needle ascending / descending line increases without being deviated from the transmission area, and there is a fear that the tip of the needle 5 contacts the stirrer 4 and is damaged.
However, the convex portion 21 is formed to have an inclined surface, and the stirring bar 4 whose rotation has been stopped slides on the inclined surface due to its own weight and the magnetizing force of the magnet 32 from the top of the convex portion 21. The needle 5 is moved down to the bottom surface of the container and is displaced from the extension line of the needle 5. Therefore, even if the suction operation is performed while the stirring bar 4 is present in the container 2, it is possible to reliably avoid the tip of the needle 5 from coming into contact with the stirring bar 4 and being damaged. Control that descends as close to the bottom as possible, that is, elevation control that always positions the top of the convex portion 21 or a descending position close to the inclined portion, can be performed regardless of the amount of subdivision. Most of the liquid inside can be inhaled, so that limited samples can be used effectively, and the effectiveness of inhalation (dispensing) work after stirring can be made substantial. . The remaining amount of the liquid in the container is the ratio of the skirt length (width) and the curvature of the bottom corner of the container when the protruding height of the convex portion 21 is 0.5 mm. It can be further reduced by changing the size so that it does not affect rotation and sliding.

また、前記凸状部21は、それぞれ前記撹拌子4の厚さよりも低い高さに設定されている。つまり、撹拌子4の厚さが直径1.5mmであるのに対して、凸状部21の高さが0.5mmの1/3の高さに設定されているので、回転し始めた撹拌子4は、凸状部21上に容易に乗り上がることができる。
The convex portions 21 are set to a height lower than the thickness of the stirrer 4. That is, while the thickness of the stirring bar 4 is 1.5 mm, the height of the convex portion 21 is set to 1/3 of 0.5 mm. The child 4 can easily ride on the convex portion 21.

撹拌装置の全体構成図。The whole block diagram of a stirring apparatus. マグネット回転体の上面図。The top view of a magnet rotary body. 容器ホルダの上面図。The top view of a container holder. 撹拌用容器の作用説明図であって、図4(A)は撹拌子を回転した際の作用説明図、図4(B)は撹拌子の回転を停止した際の作用説明図。FIGS. 4A and 4B are operation explanatory views when the stirring bar is rotated, and FIG. 4B is an operation explanatory view when the rotation of the stirring bar is stopped.

符号の説明Explanation of symbols

1 撹拌装置
11 容器ホルダ
111 セット孔
12 モータ
13 弾性ローラ(駆動伝達手段)
14 仕切板
15 ベースフレーム
2 (撹拌用)容器
21 凸状部(回転支承部)
3 マグネット回転体
31 基盤
32 マグネット
32a マグネット
32b マグネット
33 回転軸
33a 駆動軸
4 撹拌子
5 ニードル
DESCRIPTION OF SYMBOLS 1 Stirring apparatus 11 Container holder 111 Set hole 12 Motor 13 Elastic roller (drive transmission means)
14 Partition plate 15 Base frame 2 (for stirring) container 21 Convex part (rotating support part)
3 Magnet Rotating Body 31 Base 32 Magnet 32a Magnet 32b Magnet 33 Rotating Shaft 33a Drive Shaft 4 Stir Bar 5 Needle

Claims (7)

撹拌装置を構成するマグネット回転体の磁力伝達によって従動回転する撹拌子をセットし、該撹拌子によって容器内の液体を撹拌するための撹拌用容器であって、該容器の底面部の略中央部位に上方に膨出する凸状部を設け、該凸状部を、回転する撹拌子を容器底面から僅かに離間支承せしめて揺動回転を可能とする回転支承部に構成してあることを特徴とする撹拌用容器。 A stirrer that is driven and rotated by transmission of magnetic force of a magnet rotating body that constitutes a stirrer, and is a stirring container for stirring the liquid in the container by the stirrer, the substantially central portion of the bottom portion of the container A convex portion that bulges upward is provided, and the convex portion is configured as a rotary support portion that allows a rotating stirrer to be supported slightly spaced from the bottom surface of the container to enable rocking rotation. A container for stirring. 請求項1において、前記撹拌子を、ワイヤ状または板状の磁性棒体で構成すると共に、前記凸状部は、その外周に容器底面部から緩やかに傾斜する傾斜面を有することを特徴とする撹拌装置。 2. The stirrer according to claim 1, wherein the stirrer is composed of a wire-like or plate-like magnetic rod, and the convex part has an inclined surface that gently slopes from the bottom of the container on the outer periphery thereof. Stirring device. マグネット回転体の磁力伝達により容器内にセットされた撹拌子を従動回転する撹拌装置と、昇降可能なニードルを備えた分注装置とによって、容器内の液体を、前記撹拌子による撹拌と、前記ニードルによる吸入とを行わしめるための撹拌用容器であって、前記撹拌子を、ワイヤ状または板状の磁性棒体で構成する一方、前記容器の底面部には、前記ニードルの先端を容器内底面部に近接挿入した際に前記撹拌子との当接を回避すべく、撹拌子の停止位置をニードルの昇降延長線上から位置ズレさせる傾斜面を有する凸状部が設けられていることを特徴とする撹拌用容器。 The stirring device that rotates the stirrer set in the container by the magnetic force transmission of the magnet rotating body and the dispensing device that includes the needle that can be moved up and down, the liquid in the container is stirred by the stirrer, A stirring container for performing suction by a needle, wherein the stirrer is composed of a wire-shaped or plate-shaped magnetic rod, and the tip of the needle is placed in the container at the bottom surface of the container. In order to avoid contact with the stirrer when being inserted close to the bottom surface, a convex part having an inclined surface for shifting the stop position of the stirrer from the up-and-down extension line of the needle is provided. A container for stirring. 請求項3において、前記凸状部は、前記撹拌子を揺動回転させる回転支承部に兼用されていることを特徴とする撹拌装置。 The stirring device according to claim 3, wherein the convex portion is also used as a rotation support portion that swings and rotates the stirring bar. 請求項3乃至4の何れかにおいて、前記凸状部は、容器底面部の略中央に膨出形成された湾曲凸部であることを特徴とする撹拌装置。 5. The stirring device according to claim 3, wherein the convex portion is a curved convex portion bulging and formed substantially at the center of the bottom surface portion of the container. 請求項1乃至5の何れかにおいて、前記凸状部は、前記撹拌子の厚さよりも低い高さに設定されていることを特徴とする撹拌装置。 The stirring device according to claim 1, wherein the convex portion is set to a height lower than the thickness of the stirring bar. 請求項1乃至6の何れかにおいて、前記撹拌子は、前記容器の内径に対して前記ニードル先端の昇降を規制しない位置ズレ範囲をもって水平移動する長さ設定されていることを特徴とする撹拌装置。
The stirring device according to any one of claims 1 to 6, wherein the stirring bar is set to have a length that moves horizontally with a position shift range that does not restrict the elevation of the needle tip with respect to the inner diameter of the container. .
JP2003414782A 2003-12-12 2003-12-12 Stirring container Expired - Fee Related JP4385249B2 (en)

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Cited By (9)

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JP2009210488A (en) * 2008-03-05 2009-09-17 Panasonic Corp Stirring device
JP2010085125A (en) * 2008-09-29 2010-04-15 Olympus Corp Stirring apparatus and analyzer
KR101062284B1 (en) 2011-03-24 2011-09-14 대한민국 Stirring device for a sea-water sampler
US8459862B2 (en) 2008-03-05 2013-06-11 Panasonic Corporation Stirring device, microbe testing device, and microbe testing method
JP2013217882A (en) * 2012-04-12 2013-10-24 Hitachi High-Technologies Corp Reagent stirring mechanism and autoanalyzer
CN106474995A (en) * 2016-10-25 2017-03-08 四川迈克生物医疗电子有限公司 The method that liquid sucking-discharging formula mixes liquid
WO2019131039A1 (en) 2017-12-26 2019-07-04 積水メディカル株式会社 Stirring bar and stirring method
GB2576058A (en) * 2018-09-18 2020-02-05 R B Radley & Co Ltd Reaction station for magnetic stirring and methods and devices relating to magnetic stirring
CN110787729A (en) * 2018-08-02 2020-02-14 Mwt公司 Pressure vessel with stirring magnet plate

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8459862B2 (en) 2008-03-05 2013-06-11 Panasonic Corporation Stirring device, microbe testing device, and microbe testing method
JP2009210488A (en) * 2008-03-05 2009-09-17 Panasonic Corp Stirring device
JP2010085125A (en) * 2008-09-29 2010-04-15 Olympus Corp Stirring apparatus and analyzer
KR101062284B1 (en) 2011-03-24 2011-09-14 대한민국 Stirring device for a sea-water sampler
JP2013217882A (en) * 2012-04-12 2013-10-24 Hitachi High-Technologies Corp Reagent stirring mechanism and autoanalyzer
CN106474995B (en) * 2016-10-25 2019-09-06 迈克医疗电子有限公司 The method of liquid sucking-discharging formula mixing liquid
CN106474995A (en) * 2016-10-25 2017-03-08 四川迈克生物医疗电子有限公司 The method that liquid sucking-discharging formula mixes liquid
WO2019131039A1 (en) 2017-12-26 2019-07-04 積水メディカル株式会社 Stirring bar and stirring method
US11471843B2 (en) 2017-12-26 2022-10-18 Sekisui Medical Co., Ltd. Stirring bar and stirring method
CN110787729A (en) * 2018-08-02 2020-02-14 Mwt公司 Pressure vessel with stirring magnet plate
CN110787729B (en) * 2018-08-02 2022-12-09 Mwt公司 Pressure vessel with stirring magnet plate
GB2576058A (en) * 2018-09-18 2020-02-05 R B Radley & Co Ltd Reaction station for magnetic stirring and methods and devices relating to magnetic stirring
GB2576058B (en) * 2018-09-18 2020-10-07 R B Radley & Co Ltd Reaction station for magnetic stirring and methods and devices relating to magnetic stirring

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