JPS59169515A - Suction filter apparatus - Google Patents
Suction filter apparatusInfo
- Publication number
- JPS59169515A JPS59169515A JP58043095A JP4309583A JPS59169515A JP S59169515 A JPS59169515 A JP S59169515A JP 58043095 A JP58043095 A JP 58043095A JP 4309583 A JP4309583 A JP 4309583A JP S59169515 A JPS59169515 A JP S59169515A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- filter holder
- sample
- suction
- specimen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Filtration Of Liquid (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の属する技術分野〕・
この発明は吸引濾過装置に関する、
〔従来技術とその問題点〕
試料の濾過を行なう際に、特に微粒子のＦ多りには通常
孔径の小さい膜フィルタが使用される。しかし膜フィル
タを用いて液体試料の濾過を行なう場合には一般的には
濾過速度を大きくするため減圧−過又は加圧濾過の方法
が用いられる。このうちの減圧濾過はフィルタをフィル
タホルダにより固定し、さらにフィルタホルダを減圧び
ん上に載置して、減圧びん中を排気しながらフィルタ上
に試料を流し、ｐ液を減圧びん中に捕集する方法である
。このとき減圧びんの試料吸引用開口部と、載置された
フィルタホルダの接触部から、減圧びん中に空気が流入
すると、排気による減圧効果が低下し、従りて吸引−過
率も、低下する。このため７′イルタホルダと減圧びん
の試料我社用開口部との密着性を大きくすることが必要
であり、従来、試料吸引用開口部とフィルタホルダとの
接触部にネジ又はフランジを設け、０リング等の封止用
弾性体をはさんでネジ締めや固定器具により固定する方
法、試料吸引用開口部をゴムによ゛って形成し、フィル
タホルダの下部を管状として前記のゴム中に差し込む方
法、及び試料吸引用開口部とフィルタホルダの接触部を
すり合わせガラスによって構成する方法が用いられてき
た。[Detailed description of the invention] [Technical field to which the invention pertains] - This invention relates to a suction filtration device. [Prior art and its problems] When filtering a sample, the pore diameter is usually A small membrane filter is used. However, when a liquid sample is filtered using a membrane filter, vacuum filtration or pressure filtration is generally used to increase the filtration rate. Among these methods, vacuum filtration involves fixing the filter with a filter holder, placing the filter holder on a vacuum bottle, pouring the sample onto the filter while evacuating the vacuum bottle, and collecting the p liquid in the vacuum bottle. This is the way to do it. At this time, if air flows into the vacuum bottle from the contact area between the sample suction opening of the vacuum bottle and the filter holder placed on it, the depressurization effect due to exhaust will decrease, and the suction-pass rate will also decrease. do. For this reason, it is necessary to increase the adhesion between the 7' filter holder and the sample opening of the vacuum bottle. A method of sandwiching a sealing elastic body such as a ring and fixing it with screws or a fixing device.The sample suction opening is made of rubber, and the lower part of the filter holder is shaped like a tube and inserted into the rubber. A method in which the contact portion between the sample suction opening and the filter holder is made of ground glass has been used.
ところが、操作を直接手作業によって行なうことが困難
な場所、例えば試料が放射能を有するため遮蔽体内に入
れマニピュレータを介して取り扱う場合には、複雑な操
作を行なえないだめ従来の構造では取扱いが困難であっ
たり、破損の恐れがある等の問題があった。However, in places where it is difficult to perform operations directly by hand, for example, when the sample is radioactive and must be placed inside a shield and handled using a manipulator, it is difficult to handle it using the conventional structure without performing complicated operations. There were problems such as damage or damage.
この発明は上述した従来装置の欠点を改良したもので、
直接手作業のできない場所でも容易に取扱い得る吸引濾
過装置を提供することを目的とする。This invention improves the drawbacks of the conventional device mentioned above.
To provide a suction filtration device that can be easily handled even in places where direct manual operation is not possible.
本発明は減圧びんの試料吸引用開口部と、フィルタホル
ダとの接触部の少くとも一方を弾性体によって構成し密
着性を高めるとともに、接触部の試料吸引用開口部形状
を上に開いた形状とすることによって、フィルタホルダ
自重または上方から加えた荷重の試料吸引用開口部壁に
かかる分力を増加させた吸引濾過装置である。In the present invention, at least one of the sample suction opening of the vacuum bottle and the contact portion with the filter holder is made of an elastic material to improve adhesion, and the sample suction opening of the contact portion has a shape that opens upward. This is a suction filtration device in which the component force applied to the sample suction opening wall of the filter holder's own weight or the load applied from above is increased.
本発明によれば、フィルタホルダとの密着効果が大きく
なり、フィルタホルダ荷重が小さい場合でも固定器具を
用いずに効率のよい吸引濾過を行なうことが可能となる
。さらに試料吸引用開口部が上方に開いた構造であるた
めフィルタホルダを載置する際にガイドとなり、所定の
位置に載置することを容易に行ないうる。According to the present invention, the effect of close contact with the filter holder is increased, and even when the filter holder load is small, efficient suction filtration can be performed without using a fixing device. Further, since the opening for sample suction is opened upward, it serves as a guide when placing the filter holder, and it is possible to easily place the filter holder in a predetermined position.
捷た、フィルタホルダの底面の一部を球面とし、これと
接触する試料吸引用開口部の水平断面形状を円形とすれ
ば、フィルタホルダの載置状態が傾いていても両者の密
着性は確実に保持され一層取扱いが容易となる。By making part of the bottom of the folded filter holder spherical and making the horizontal cross-sectional shape of the sample suction opening that comes into contact with it circular, the adhesion between the two can be ensured even if the filter holder is placed at an angle. This makes handling easier.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第１図は本発明による吸引濾過装置の断面図である。減
圧びん１は試料吸引用開口部１ａおよび排気用開口部１
ｂとを有し、試料吸引用開口部１ａの上端部直径Ａは少
くともフィルタホルダ２の底部直径Ｂよシも大きい構造
を有する。フィルタホルダ２を載置した状態では、フィ
ルタホルダ２と試料吸引用開口部１ａとの接触部１ｃが
弾性体で構成され、かつ接触部１ｃにおける試料吸引用
開口部１ａの形状が上に開いた形状であることが必要で
ある。−例として試料吸引用開口部１ａを円錐状とし、
フィルタホルダ２の底部直径Ｂと上部直径Ｃとの中間の
水平断面ぽ径となる試料吸引用開口部１ａ壁面に０リン
グ３を設置することによって達成される。FIG. 1 is a sectional view of a suction filtration device according to the present invention. The vacuum bottle 1 has a sample suction opening 1a and an exhaust opening 1.
b, and the upper end diameter A of the sample suction opening 1a is larger than the bottom diameter B of the filter holder 2. When the filter holder 2 is placed, the contact portion 1c between the filter holder 2 and the sample suction opening 1a is made of an elastic body, and the shape of the sample suction opening 1a in the contact portion 1c is open upward. It is necessary that the shape is the same. - As an example, the sample suction opening 1a is conical,
This is achieved by installing the O-ring 3 on the wall surface of the sample suction opening 1a, which has a horizontal cross-sectional diameter midway between the bottom diameter B and the top diameter C of the filter holder 2.
フィルタホルダ２は、フィルタ４を固定し、フィルタ４
を通らずに試料５が漏洩することのない構造であればよ
く、例えばフィルタ支持体２ａ上にフィルタ４を置きフ
ィルタ圧着用のワッシャ２ｂを介して液受は用壁面をか
ねたフィルタ固定器具２ｃによって押さえる構造とする
ことによって達成される。フィルタ固定器具はその外周
部にねじ部２ｄを有し、フィルタ支持体２ａの内周のネ
ジ部２ｅとの嵌合によって固定することが可能である。The filter holder 2 fixes the filter 4 and
Any structure is sufficient as long as the sample 5 does not leak through the filter, for example, the filter 4 is placed on the filter support 2a, and the filter fixing device 2c, which also serves as a wall surface, is used to hold the liquid through a washer 2b for pressing the filter. This is achieved by creating a structure that holds the area in place. The filter fixing device has a threaded portion 2d on its outer periphery, and can be fixed by fitting with a threaded portion 2e on the inner periphery of the filter support 2a.
かかる状態でフィルタホルダ２の液受は部２ｆに試料５
を入れ、排気用開口部１ｂに図示していない外部の排気
装置をつないで減圧びん１の内部を排気減圧すれば、フ
ィルタホルダ２の自重と減圧びん内外の差圧によって接
触部１Ｃが封止され、吸引濾過を行なうことが可能とな
る。In this state, the liquid receiver of the filter holder 2 has the sample 5 in the part 2f.
If the inside of the vacuum bottle 1 is evacuated and depressurized by connecting an external exhaust device (not shown) to the exhaust opening 1b, the contact portion 1C will be sealed by the weight of the filter holder 2 and the differential pressure between the inside and outside of the vacuum bottle. This makes it possible to carry out suction filtration.
また、第２図に示すようにフィルタホルダ２の底部２ａ
を球面とし、試料吸引用開口部１ａが接触部ＩＣにおい
て円形の水平断面形状をもつ構造とすれば、フィルタホ
ルダ２が傾いて載置されても充分な密着効果が得られ一
層好適である。In addition, as shown in FIG. 2, the bottom 2a of the filter holder 2
It is more preferable to have a structure in which the sample suction opening 1a has a circular horizontal cross-sectional shape at the contact part IC, since a sufficient adhesion effect can be obtained even if the filter holder 2 is placed at an angle.
なお、吸引びん１、フィルタホルダ２とも、充分な耐圧
性と試料に対する耐性をもつものであれば何で構成して
も良いが、例えば耐薬品性の高いフッ素樹脂により構成
することができる。Note that the suction bottle 1 and the filter holder 2 may be made of any material as long as it has sufficient pressure resistance and resistance against samples; for example, they may be made of a fluororesin having high chemical resistance.
第１図は吸引ｒ過装置の縦断面図、第２図はフィルタホ
ルダの実施例を示す縦世１面図である。
１・・・減圧びん、ｌａ・・・試料吸引用開口部、１ｂ
・・・排気用開口部、ｌｃ・・・接触部、２・・・フィ
ルタホルダ、２ａ・・・底！、２ｂ・・・ワッシャ、２
Ｃ・・・フィルタ固定器具、２ｄ・・・ねじ部、２ｅ・
・・ねじ部、２ｆ・・・液受は部、３・・・０１ノング
、４・・・フィルタ、５・・・試料。
第 １ 図
第２図FIG. 1 is a longitudinal cross-sectional view of the suction rover device, and FIG. 2 is a vertical front view showing an embodiment of the filter holder. 1... Vacuum bottle, la... Opening for sample suction, 1b
...exhaust opening, lc...contact part, 2...filter holder, 2a...bottom! , 2b... washer, 2
C... Filter fixing device, 2d... Threaded part, 2e.
...Thread part, 2f...Liquid receiver part, 3...01 tongue, 4...filter, 5...sample. Figure 1 Figure 2
Claims (2)
載置されるフィルタホルダと、フィルタを通して試料を
吸引する減圧びんとからなる吸引濾過装置において、前
記減圧びんの試料吸引用開口部上に前記フィルタホルタ
を載置した状態で接触する部分の少くとも一方を弾性体
によって形成し、かつ前記試料吸引用開口部およびフィ
ルタホルダがその接触部において上方に開いた斜面とな
る構造を有することを特徴とした吸引濾過装置。(1) In a suction filtration device consisting of a filter, a filter holder that holds the filter and is placed on a vacuum bottle, and a vacuum bottle that sucks a sample through the filter, At least one of the parts that come in contact with the filter holder when placed thereon is formed of an elastic body, and the sample suction opening and the filter holder have a structure in which the contact part forms an upwardly open slope. Featured suction filtration device.
徴とする特許請求の範囲第−項記載の吸引濾過装置。(2) The suction filtration device according to claim 1, wherein the bottom shape of the filter holder is spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58043095A JPS59169515A (en) | 1983-03-17 | 1983-03-17 | Suction filter apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58043095A JPS59169515A (en) | 1983-03-17 | 1983-03-17 | Suction filter apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59169515A true JPS59169515A (en) | 1984-09-25 |
Family
ID=12654271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58043095A Pending JPS59169515A (en) | 1983-03-17 | 1983-03-17 | Suction filter apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59169515A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63205110A (en) * | 1987-02-21 | 1988-08-24 | Toyo Roshi Kk | Automatic filtration sampling device of liquid samples |
| KR100360172B1 (en) * | 2000-08-24 | 2002-11-11 | 박헌양 | Filtering apparatus |
-
1983
- 1983-03-17 JP JP58043095A patent/JPS59169515A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63205110A (en) * | 1987-02-21 | 1988-08-24 | Toyo Roshi Kk | Automatic filtration sampling device of liquid samples |
| KR100360172B1 (en) * | 2000-08-24 | 2002-11-11 | 박헌양 | Filtering apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5342329A (en) | Portable disposable device for post-surgical suction | |
| AU590616B2 (en) | Method and device for separating serum/plasma from blood | |
| US4516973A (en) | One-piece disposable collection bag having a rigid cover for a suction canister unit | |
| US3976579A (en) | Novel assembly | |
| DE69101526D1 (en) | Device for the centrifugal separation of two phases of a heterogeneous liquid, particularly usable for the separation of blood plasma. | |
| US5217619A (en) | Liquid-solid extraction apparatus and method of using same | |
| US4131547A (en) | Refillable column for chromatography at elevated pressure | |
| US3777403A (en) | Dental silver retrieval apparatus | |
| JPS59169515A (en) | Suction filter apparatus | |
| WO2002089724A3 (en) | Method of collecting fluid with a breastpump membrane and novel membrane cover for a breast shield | |
| CA2146257A1 (en) | Device for collection and processing of biological samples | |
| CN210427485U (en) | Centrifugal purification tube assembly based on liquid chromatographic analysis | |
| CN211213180U (en) | Blood specimen censorship test tube | |
| CA2367063A1 (en) | Vacuum cleaner inner bag | |
| CN110975374A (en) | A quick suction filter device for detecting low concentration heavy metal element | |
| US4126223A (en) | Barrier device, packaging and method | |
| US4959197A (en) | Filter canister for immunoassays | |
| CN213714805U (en) | Filtering and sampling integrated reagent tube | |
| JP2609506B2 (en) | Serum collection device | |
| CA2366823A1 (en) | Vacuum cleaner outer bag | |
| CN221649946U (en) | Water sampling device | |
| CN221558443U (en) | Biological centrifuge tube for virus detection and clinical examination | |
| CN210303716U (en) | Implant is sample bottle for testing process | |
| JPH07204417A (en) | Filter funnel | |
| CN212648260U (en) | High-performance ultraviolet light detector with silicon carbide composite film |