JPH0110607Y2 - - Google Patents
Info
- Publication number
- JPH0110607Y2 JPH0110607Y2 JP12349381U JP12349381U JPH0110607Y2 JP H0110607 Y2 JPH0110607 Y2 JP H0110607Y2 JP 12349381 U JP12349381 U JP 12349381U JP 12349381 U JP12349381 U JP 12349381U JP H0110607 Y2 JPH0110607 Y2 JP H0110607Y2
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- pipette nozzle
- nozzle
- flow path
- pipette
- 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.)
- Expired
Links
- 238000004140 cleaning Methods 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000005070 sampling Methods 0.000 claims description 12
- 238000005406 washing Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000011109 contamination Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Biological Materials (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Description
【考案の詳細な説明】
この考案は自動分析装置、とくに生化学自動分
析装置におけるピペツタノズル洗浄装置に関する
ものである。[Detailed Description of the Invention] This invention relates to a pipette nozzle cleaning device for an automatic analyzer, particularly an automatic biochemical analyzer.
生化学自動分析装置において試料液を複数分析
項目分を一度に吸引して、分析項目それぞれに対
応して反応管へ順次分注する場合に、限られた時
間内にあつては多項目多検体になるほどピペツタ
ノズルの洗浄のための時間が短かくなつて、従来
のように洗浄位置にてサンプリングポンプにより
洗浄水を吸引吐出してピペツタノズル内部を洗浄
するとともにノズル外部を洗浄水に浸し洗浄水を
オーバーフローして洗浄する方法では、充分な洗
浄ができずコンタミネーシヨンを生じる原因とな
る。 When a biochemical automatic analyzer aspirates sample liquid for multiple analysis items at once and sequentially dispenses it into reaction tubes corresponding to each analysis item, it is possible to aspirate multiple analysis items and multiple samples within a limited time. The more time it takes to clean the pipette nozzle, the more time it takes to clean the pipette nozzle.As in the past, the sampling pump sucks and discharges cleaning water at the cleaning position to clean the inside of the pipette nozzle, and the outside of the nozzle is immersed in cleaning water, causing the cleaning water to overflow. In this method, sufficient cleaning cannot be performed and contamination may occur.
この考案は、上記ピペツタノズルの洗浄が短時
間に効果的に行なえコンタミネーシヨンを生じさ
せない、特に多項目多検体処理を行なう自動分析
装置に装備すれば洗浄のためのわずかな時間にノ
ズルの充分な洗浄が行ないうるピペツタノズル洗
浄装置の提供を目的とするものである。 This idea allows the pipette nozzle to be cleaned effectively in a short period of time without causing contamination.In particular, if it is installed in an automatic analyzer that processes multiple items and multiple samples, the nozzle can be cleaned in a short period of time. The object of the present invention is to provide a pipette nozzle cleaning device that can perform cleaning.
すなわち、この考案はサンプリングポンプとピ
ペツタノズルとの間に形成される流路に切換弁を
設け、ピペツタノズル側の流路をサンプリング側
流路と、洗浄水加圧供給流路とに切換的に接続す
るようにしたことを特徴とする自動分析装置にお
けるピペツタノズル洗浄装置にかかるものであ
る。 That is, in this invention, a switching valve is provided in the flow path formed between the sampling pump and the pipette nozzle, and the flow path on the pipette nozzle side is selectively connected to the sampling side flow path and the wash water pressurized supply flow path. This invention relates to a pipette nozzle cleaning device for an automatic analyzer, which is characterized by the following features.
以下、この考案にかかるピペツタノズル洗浄装
置の実施例について図面を参照しながら説明す
る。 Hereinafter, embodiments of the pipette nozzle cleaning device according to this invention will be described with reference to the drawings.
第１図はこの考案にかかるピペツタノズル洗浄
装置の構成を示す模式断面図である。図中１はサ
ンプリングポンプで、分注室２には試料吸引、吐
出の際の流路Ａを形成する流路管３の一端が接続
されている。４は切換弁で、前記流路管３の他端
が接続されるとともに、流路Ｂを形成しピペツタ
ノズル６に連結する流路管５と、図示しない洗浄
水供給装置１３に連結し常時洗浄水が加圧されて
いる流路Ｃを形成する流路管７とが接続されてい
る。切換弁４はピペツタノズル６への流路Ｂに対
し、流路Ａと流路Ｃとを切り換えるもので、三方
弁として構成されている。８はサンプルカツプで
試料液９が収納されている。１０は洗浄槽で、分
析項目に対応した各反応管１２に試料液９を分注
した後のピペツタノズル６を、洗浄位置にて洗浄
水に浸して洗浄する。 FIG. 1 is a schematic sectional view showing the structure of a pipette nozzle cleaning device according to this invention. In the figure, reference numeral 1 denotes a sampling pump, and a dispensing chamber 2 is connected to one end of a flow path pipe 3 that forms a flow path A for sucking and discharging a sample. Reference numeral 4 denotes a switching valve, to which the other end of the flow pipe 3 is connected, and to a flow pipe 5 forming a flow path B and connected to the pipette nozzle 6, and to a wash water supply device 13 (not shown), which constantly supplies wash water. A flow path pipe 7 forming a flow path C in which is pressurized is connected. The switching valve 4 switches between the flow path A and the flow path C with respect to the flow path B to the pipette nozzle 6, and is configured as a three-way valve. 8 is a sample cup in which a sample liquid 9 is stored. Reference numeral 10 denotes a washing tank, in which the pipette nozzle 6 after dispensing the sample liquid 9 into each reaction tube 12 corresponding to the analysis item is immersed in washing water at a washing position to be washed.
つぎにこの装置における動作について第２図の
作動タイムチヤートにもとづいて説明する。第２
図ロに示すように切換弁４をOFFにし、つまり
洗浄水供給流路Ｃを閉鎖し、流路ＡとＢとが連結
するように切換えて後、第２図イに示すようにt1
秒間サンプリングポンプ１のシリンジを下げて試
料液９を吸引し、つぎにt2秒間でシリンジを上げ
て吸引した試料液９を間欠的に送られてくる反応
管１２に順次分注する。分注終了後、ピペツタノ
ズル６が洗浄槽１０の洗浄位置１１に来れば、t3
秒間切換弁４がONし、つまり洗浄水供給流路Ｃ
とピペツタノズル６側の流路Ｂとが連結するよに
切換えられて、加圧された多量の洗浄水が一時に
切換弁４、ピペツタノズル６をへて洗浄槽１０に
吐出され、ピペツタノズル６の内部が洗浄される
ことになる。ピペツタノズル６の外部は洗浄槽１
０の洗浄位置１１にて洗浄水にノズルを浸し、第
１図に示すように洗浄水を(a)から(b)へオーバーフ
ローさせて洗浄する。ピペツタノズル６の洗浄が
終了すればノズルは次の検体たる試料液を収納し
たサンプルカツプへと移動し、上記吸引、分注、
洗浄が第２図に示すようにＴ秒ごとに繰り返され
ることになる。多検体になるとこのＴ秒間が短か
くなり、分析が多項目に及ぶとこのＴ秒間中のt2
時間が長くなるので、結局洗浄のためのt3時間が
あまりとれないことになるのである。 Next, the operation of this device will be explained based on the operation time chart shown in FIG. Second
After turning off the switching valve 4 as shown in Figure 2B, in other words, closing the cleaning water supply flow path C and switching the flow paths A and B to be connected, as shown in Figure 2B, t 1
The syringe of the sampling pump 1 is lowered for 2 seconds to aspirate the sample liquid 9, and then the syringe is raised for t 2 seconds to sequentially dispense the aspirated sample liquid 9 into the reaction tube 12 that is intermittently fed. After dispensing, if the pipette nozzle 6 reaches the cleaning position 11 of the cleaning tank 10, t 3
Switching valve 4 is turned on for a second, which means that the cleaning water supply flow path C is turned on.
The flow path B on the pipette nozzle 6 side is switched so that a large amount of pressurized washing water is simultaneously discharged into the washing tank 10 through the switching valve 4 and the pipette nozzle 6, and the inside of the pipette nozzle 6 is It will be washed. The outside of the pipette nozzle 6 is the cleaning tank 1.
The nozzle is immersed in the cleaning water at the cleaning position 11 of No. 0, and the cleaning water is overflowed from (a) to (b) as shown in FIG. 1 for cleaning. When cleaning of the pipette nozzle 6 is completed, the nozzle moves to the sample cup containing the next sample liquid, and performs the above-mentioned aspiration, dispensing, and
The wash will be repeated every T seconds as shown in FIG. When there are many samples, this T seconds becomes shorter, and when the analysis involves many items, t 2 in this T seconds becomes shorter.
Since it takes a long time, you end up not having enough time for cleaning.
この考案にかかるピペツタノズル洗浄装置は上
記のように構成されているので、ピペツタノズル
の洗浄とりわけノズル内部の洗浄が短時間に効果
的に行なうことができる。したがつてこの考案に
かかるピペツタノズル洗浄装置を多項目多検体処
理を行なうために洗浄時間が数秒しかない自動分
析装置に装備すれば、そのわずかな時間にノズル
の充分な洗浄が行なえるので、コンタミネーシヨ
ンを生じる心配がない。また洗浄水をサンプリン
グポンプ側の流路とは独立して洗浄水をノズル内
部に通すので、従来のように洗浄時にサンプリン
グポンプのシリンジを上下して洗浄水を吸引、吐
出する必要がなく、サンプリングポンプのパツキ
ングやプランジヤーの寿命が長くなるという利点
も有するものである。 Since the pipette nozzle cleaning device according to this invention is constructed as described above, cleaning of the pipette nozzle, especially cleaning the inside of the nozzle, can be carried out effectively in a short period of time. Therefore, if the pipette nozzle cleaning device according to this invention is installed in an automatic analyzer that processes multiple items and multiple samples and requires only a few seconds of cleaning time, the nozzle can be thoroughly cleaned in that short time, reducing contamination. There is no need to worry about causing problems. In addition, since the cleaning water is passed through the nozzle independently of the flow path on the sampling pump side, there is no need to move the syringe of the sampling pump up and down to suction and discharge the cleaning water during cleaning, which is required for sampling. It also has the advantage of extending the life of the pump packing and plunger.
第１図はこの考案にかかるピペツタノズル洗浄
装置の構成を示す模式断面図である。第２図はこ
の装置の作動タイムチヤートを示す図である。
１……サンプリングポンプ、３，５，７……流
路管、４……切換弁、６……ピペツタノズル、８
……サンプリングカツプ、９……試料、１０……
洗浄槽、１２……反応管、１３……洗浄水供給装
置。
FIG. 1 is a schematic sectional view showing the structure of a pipette nozzle cleaning device according to this invention. FIG. 2 is a diagram showing an operating time chart of this device. 1...Sampling pump, 3, 5, 7...Flow pipe, 4...Switching valve, 6...Pippet nozzle, 8
...Sampling cup, 9...Sample, 10...
Washing tank, 12... Reaction tube, 13... Washing water supply device.
Claims (1)
ズルをへて吸引し、吸引した試料を多項目検査の
ための複数の反応管ならびに洗浄槽へそのノズル
を順次移動させて分注ならびに洗浄する装置にお
いて、洗浄水加圧供給源を別に設けるとともにピ
ペツタノズルの洗浄槽移動位置において、ピペツ
タノズルを前記サンプリングポンプとは切換的に
この洗浄水加圧供給源に接続する切換弁を設けた
ことを特徴とするピペツタノズル洗浄装置。 A device that sucks a sample through a pipette nozzle using a sampling pump, and sequentially moves the nozzle to multiple reaction tubes and cleaning tanks for multi-item testing to dispense and wash the sample. A pipette nozzle cleaning device, characterized in that a pressure supply source is provided separately, and a switching valve is provided for connecting the pipette nozzle to the pressurized supply source of cleaning water in a manner different from the sampling pump at a position where the pipette nozzle is moved to the cleaning tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12349381U JPS5832365U (en) | 1981-08-19 | 1981-08-19 | Pipetta nozzle cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12349381U JPS5832365U (en) | 1981-08-19 | 1981-08-19 | Pipetta nozzle cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5832365U JPS5832365U (en) | 1983-03-02 |
| JPH0110607Y2 true JPH0110607Y2 (en) | 1989-03-27 |
Family
ID=29917395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12349381U Granted JPS5832365U (en) | 1981-08-19 | 1981-08-19 | Pipetta nozzle cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832365U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5708394B2 (en) * | 2011-09-14 | 2015-04-30 | 株式会社島津製作所 | Solution filling mechanism |
-
1981
- 1981-08-19 JP JP12349381U patent/JPS5832365U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5832365U (en) | 1983-03-02 |
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