JP4576340B2 - Automatic analyzer - Google Patents

Automatic analyzer Download PDF

Info

Publication number
JP4576340B2
JP4576340B2 JP2006003160A JP2006003160A JP4576340B2 JP 4576340 B2 JP4576340 B2 JP 4576340B2 JP 2006003160 A JP2006003160 A JP 2006003160A JP 2006003160 A JP2006003160 A JP 2006003160A JP 4576340 B2 JP4576340 B2 JP 4576340B2
Authority
JP
Japan
Prior art keywords
automatic analyzer
reaction
vacuum suction
reagent
cleaning
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 - Fee Related
Application number
JP2006003160A
Other languages
Japanese (ja)
Other versions
JP2007187444A (en
Inventor
雅徳 圷
克明 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi High Tech Corp
Original Assignee
Hitachi High Technologies Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi High Technologies Corp filed Critical Hitachi High Technologies Corp
Priority to JP2006003160A priority Critical patent/JP4576340B2/en
Publication of JP2007187444A publication Critical patent/JP2007187444A/en
Application granted granted Critical
Publication of JP4576340B2 publication Critical patent/JP4576340B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Automatic Analysis And Handling Materials Therefor (AREA)

Description

本発明は、血液,尿等の生体成分の定性・定量分析を行う自動分析装置に係り、特に試料,試薬の分注ノズルの洗浄,乾燥機構を備えた自動分析装置に関する。   The present invention relates to an automatic analyzer that performs qualitative / quantitative analysis of biological components such as blood and urine, and more particularly, to an automatic analyzer equipped with a cleaning and drying mechanism for sample and reagent dispensing nozzles.

血液や尿などの生体試料中の無機イオン,タンパク,含窒素成分,糖,脂質,酵素,ホルモン,薬物,特定の抗原,抗体などの成分の定性・定量分析を行うため自動分析装置が使用される。この自動分析装置は従来、人がカラーチャート等を用いて行っていた分析を自動化したもので、迅速、かつ再現性の良い分析ができるため、大病院、検査センタを中心に普及している。   Automatic analyzers are used for qualitative and quantitative analysis of components such as inorganic ions, proteins, nitrogen-containing components, sugars, lipids, enzymes, hormones, drugs, specific antigens, and antibodies in biological samples such as blood and urine. The This automatic analyzer has been widely used mainly in large hospitals and inspection centers because it is an automated analysis performed by a person using a color chart or the like and can perform an analysis quickly and with good reproducibility.

自動分析装置は検体に分析成分と反応して化学変化を起こす試薬を分注用ノズルで分注後、攪拌機構により攪拌させ化学変化の程度を光度計等を利用して分析するのものである。分注後に分注用ノズルは、ノズル洗浄部へ移動し洗浄される。分注用ノズルによる分注動作時または攪拌機構による攪拌後の反応容器外への液滴飛散は、隣接する反応容器への混入・反応容器周囲への付着の虞があった。このため液滴飛散受け板等を反応容器上部に設けたものであったが、積極的に液滴を除去するものではないため、液滴残存の懸念があった。また、分注は相応の圧力で液体を注入するプロセスであるので、液体の一部がエアロゾル化して装置を汚染する虞があった。この問題を解決するため特許文献1では簡単な構成で有効にエアロゾルを吸引できる手段を備えた自動分析装置が開示されている。   The automatic analyzer is used to analyze the degree of chemical change using a photometer, etc. after a reagent that reacts with an analysis component and causes a chemical change in a sample is dispensed by a dispensing nozzle and then stirred by a stirring mechanism. . After dispensing, the dispensing nozzle moves to the nozzle cleaning section and is cleaned. There is a risk that droplets splashing outside the reaction vessel during the dispensing operation by the dispensing nozzle or after stirring by the stirring mechanism may be mixed into an adjacent reaction vessel or adhered to the periphery of the reaction vessel. For this reason, although a droplet scattering receiving plate or the like is provided on the upper part of the reaction vessel, there is a concern that the droplets remain because the droplets are not positively removed. In addition, since the dispensing is a process of injecting the liquid at a suitable pressure, there is a possibility that a part of the liquid is aerosolized to contaminate the apparatus. In order to solve this problem, Patent Document 1 discloses an automatic analyzer equipped with means capable of effectively sucking aerosol with a simple configuration.

特開平6−18530号公報JP-A-6-18530

検体または試薬の採取時は、検体または試薬にノズルを浸し、シリンジなどの吸引手段によって分注用ノズルに吸引される。そして、検体または試薬を吸引した分注用ノズルは、反応容器へ移動し分注される。分注用ノズルが水平移動する際の起動,停止時には相応の加速度がノズルに発生するが、ノズルは細長い管であるため、水平移動開始時、または停止時にノズル外壁に付着した検体または試薬が反応容器周囲に飛散する可能性がある。また、攪拌機構による攪拌時の反応液混合の際に反応容器外へ反応液飛散した場合は、隣接する反応容器への混入する可能性があり、分析データへの悪影響となる可能性があった。   When collecting the sample or reagent, the nozzle is immersed in the sample or reagent and sucked into the dispensing nozzle by suction means such as a syringe. Then, the dispensing nozzle that sucks the specimen or reagent moves to the reaction container and is dispensed. When the dispensing nozzle is moved horizontally, when starting and stopping, a corresponding acceleration is generated in the nozzle. However, since the nozzle is an elongated tube, the sample or reagent attached to the outer wall of the nozzle reacts when the horizontal movement starts or stops. There is a possibility of splashing around the container. In addition, when the reaction solution is scattered outside the reaction vessel during mixing of the reaction solution during stirring by the stirring mechanism, it may be mixed into the adjacent reaction vessel, which may adversely affect the analysis data. .

本発明の目的は、反応容器周囲へ飛散した液滴を吸引・除去できる機能を備えた自動分析装置を提供することにある。   An object of the present invention is to provide an automatic analyzer having a function capable of sucking and removing droplets scattered around the reaction vessel.

上記目的を達成するための本発明の構成は以下の通りである。   The configuration of the present invention for achieving the above object is as follows.

検体と試薬を混合する反応容器と反応容器を洗浄する洗浄機構と洗浄後の洗浄液を真空吸引するための真空吸引配管と真空吸引するための真空吸引ポンプと前記真空吸引配管と真空吸引ポンプの間に設けられた洗浄液と真空吸引エアーとを分離する真空吸引ビンと真空吸引切替え三方バルブとを備えた自動分析装置。真空吸引切替え三方バルブには、真空吸引配管内を大気開放にするための大気開放ポートが備えられている。その大気開放ポートに接続された液滴吸引配管は、反応容器周囲の飛散する部位に設けられている。その部位には飛散した液滴を溜める受皿が設けられ受皿より液滴吸引配管にて液滴が吸引・除去できる構造となっていても良い。受皿にはフィルタが備えられていても良い。   A reaction container for mixing the specimen and the reagent, a cleaning mechanism for cleaning the reaction container, a vacuum suction pipe for vacuum suction of the cleaning liquid after cleaning, a vacuum suction pump for vacuum suction, and the vacuum suction pipe and the vacuum suction pump An automatic analyzer equipped with a vacuum suction bottle and a vacuum suction switching three-way valve for separating the cleaning liquid and the vacuum suction air provided in. The vacuum suction switching three-way valve is provided with an air release port for opening the vacuum suction pipe to the atmosphere. The liquid droplet suction pipe connected to the atmosphere release port is provided at a site scattered around the reaction vessel. A receiving tray for storing the scattered droplets may be provided at the site, and the droplets may be sucked and removed from the receiving tray by a droplet suction pipe. The saucer may be provided with a filter.

本発明は、以下のような効果がある。反応容器周囲への飛散した液滴を吸引することができるため、分析結果の信頼性及び安定した分析結果が得られることになる。また、操作者等の二次感染・周辺部位の汚染防止されるだけでなく分析装置上面の汚れが少なくなり装置の美観を保つことができる。   The present invention has the following effects. Since the droplets scattered around the reaction vessel can be sucked, the reliability of the analysis result and the stable analysis result can be obtained. Further, not only the secondary infection of the operator or the like, but also the contamination of the surrounding site is prevented, and the contamination on the upper surface of the analyzer is reduced, and the aesthetic appearance of the device can be maintained.

本発明を図面を用いて詳細に説明する。図1は本発明を適用した自動分析装置の概略図である。反応ディスク1,試薬格納部2,検体格納部3,試薬サンプリング機構4,検体サンプリング機構5,光度計6,反応槽7,洗浄機構8,ノズル洗浄乾燥機構9,制御部10から構成されている。反応ディスク1には検体と試薬を混合攪拌させる反応容器11が複数架設されており、反応ディスク駆動部12の回転停止動作により反応容器11を一定サイクルで繰り返し移送する。試薬格納部2には試薬を入れた試薬容器13が複数架設されている。検体格納部3には検体を入れた検体容器14が複数架設されている。試薬サンプリング機構4は反応ディスク1と試薬格納部2間を直線移動し分注用ノズル15により試薬を反応容器11へ分注する。検体サンプリング機構5は反応ディスク1と検体格納部3間を回転移動し分注用ノズル15により検体を反応容器11へ分注する。光度計6では攪拌された検体と試薬の吸光度を測定し検体の分析が行われる。反応槽7には一定温度の反応槽水が循環している。洗浄機構8には分析後の反応容器11内の洗浄を行う。ノズル洗浄乾燥機構9は試薬あるいは検体を分注後に分注用ノズル15の洗浄・真空乾燥を行う。図2は、自動分析装置流路系統概略図である。反応容器11を洗浄する洗浄機構16と洗浄後の洗浄液を真空吸引する真空吸引ポンプと前記洗浄機構16と真空吸引ポンプ
17の間には真空吸引配管18と真空吸引ビン19と三方バルブ20と真空タンク21が設けてある。真空吸引ビン19には、ドレン排出バルブ22と真空タンクにはドレンコック23が設けてある。真空吸引ポンプ17からの外部排出エアーはフィルタ24を通して排出される。真空タンク21内は、一定の真空圧(負圧)が保たれるよう真空吸引ポンプ17で吸引・制御されている。反応容器11内の洗浄後の洗浄液を吸引する場合、三方バルブ20ポートAとBが開き洗浄機構16により吸引され真空吸引ビン19に溜められる。吸引完了後三方バルブ20ポートAとCが開き洗浄機構16と三方バルブ20間が大気開放状態となり、ドレン排出バルブ22の開放によりドレンが排出される。この時、図3に示すように三方バルブ20ポートAとCの圧力差を利用しポートCに接続された液滴吸引配管25を介して反応容器上部の受け皿26に飛散した液滴を吸引・除去する。吸引された液滴は、真空吸引ビン19に溜められる。真空吸引ビンまで至らず途中の配管内に留まった液滴は、次回の真空吸引時に真空タンク21内に溜められ定期的メンテナンスによりドレンコック23により排出する。
The present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram of an automatic analyzer to which the present invention is applied. It consists of a reaction disk 1, a reagent storage unit 2, a sample storage unit 3, a reagent sampling mechanism 4, a sample sampling mechanism 5, a photometer 6, a reaction tank 7, a cleaning mechanism 8, a nozzle cleaning / drying mechanism 9, and a control unit 10. . A plurality of reaction containers 11 for mixing and stirring the sample and the reagent are installed on the reaction disk 1, and the reaction containers 11 are repeatedly transferred in a constant cycle by the rotation stop operation of the reaction disk drive unit 12. A plurality of reagent containers 13 containing reagents are installed in the reagent storage unit 2. A plurality of sample containers 14 containing samples are installed in the sample storage unit 3. The reagent sampling mechanism 4 moves linearly between the reaction disk 1 and the reagent storage unit 2 and dispenses the reagent into the reaction container 11 by the dispensing nozzle 15. The sample sampling mechanism 5 rotates between the reaction disk 1 and the sample storage unit 3 and dispenses the sample into the reaction container 11 by the dispensing nozzle 15. The photometer 6 analyzes the specimen by measuring the absorbance of the stirred specimen and reagent. The reaction tank 7 is circulated with reaction tank water at a constant temperature. The cleaning mechanism 8 cleans the reaction container 11 after analysis. The nozzle cleaning / drying mechanism 9 cleans and vacuum-drys the dispensing nozzle 15 after dispensing the reagent or specimen. FIG. 2 is a schematic diagram of the flow path system of the automatic analyzer. A cleaning mechanism 16 for cleaning the reaction vessel 11, a vacuum suction pump for vacuum suction of the cleaning liquid after cleaning, a vacuum suction pipe 18, a vacuum suction bottle 19, a three-way valve 20, and a vacuum between the cleaning mechanism 16 and the vacuum suction pump 17. A tank 21 is provided. The vacuum suction bottle 19 is provided with a drain discharge valve 22 and a drain cock 23 in the vacuum tank. External exhaust air from the vacuum suction pump 17 is exhausted through the filter 24. The vacuum tank 21 is sucked and controlled by the vacuum suction pump 17 so that a constant vacuum pressure (negative pressure) is maintained. When the cleaning liquid after cleaning in the reaction vessel 11 is sucked, the three-way valve 20 ports A and B are opened and sucked by the cleaning mechanism 16 and stored in the vacuum suction bottle 19. After the completion of the suction, the three-way valve 20 ports A and C are opened, and the space between the cleaning mechanism 16 and the three-way valve 20 is opened to the atmosphere, and the drain is discharged by opening the drain discharge valve 22. At this time, as shown in FIG. 3, the droplets scattered on the tray 26 at the upper part of the reaction vessel are sucked through the droplet suction pipe 25 connected to the port C using the pressure difference between the three-way valves 20 ports A and C. Remove. The sucked liquid droplets are stored in the vacuum suction bottle 19. The liquid droplets that have not reached the vacuum suction bottle and remain in the pipe on the way are accumulated in the vacuum tank 21 at the next vacuum suction, and are discharged by the drain cock 23 by regular maintenance.

実施例に係る本発明が適用される自動分析装置の概略図である。It is the schematic of the automatic analyzer to which this invention which concerns on an Example is applied. 自動分析装置流路系統概略図である。It is an automatic analyzer channel system schematic. 本発明を適用した自動分析装置流路系統概略図である。It is an automatic analyzer channel system schematic diagram to which the present invention is applied.

符号の説明Explanation of symbols

1…反応ディスク、2…試薬格納部、3…検体格納部、4…試薬サンプリング機構、5…検体サンプリング機構、6…光度計、7…反応槽、8,16…洗浄機構、9…ノズル洗浄乾燥機構、10…制御部、11…反応容器、12…反応ディスク駆動部、13…試薬容器、14…検体容器、15…分注用ノズル、17…真空吸引ポンプ、18…真空吸引配管、19…真空吸引ビン、20…三方バルブ、21…真空タンク、22…ドレン排出バルブ、23…ドレンコック、24…エアーフィルタ、25…液滴吸引配管、26…受け皿。   DESCRIPTION OF SYMBOLS 1 ... Reaction disk, 2 ... Reagent storage part, 3 ... Sample storage part, 4 ... Reagent sampling mechanism, 5 ... Sample sampling mechanism, 6 ... Photometer, 7 ... Reaction tank, 8, 16 ... Cleaning mechanism, 9 ... Nozzle cleaning Drying mechanism, 10 ... control unit, 11 ... reaction container, 12 ... reaction disk drive unit, 13 ... reagent container, 14 ... specimen container, 15 ... dispensing nozzle, 17 ... vacuum suction pump, 18 ... vacuum suction pipe, 19 DESCRIPTION OF SYMBOLS ... Vacuum suction bottle, 20 ... Three-way valve, 21 ... Vacuum tank, 22 ... Drain discharge valve, 23 ... Drain cock, 24 ... Air filter, 25 ... Droplet suction pipe, 26 ... Receptacle.

Claims (2)

検体と試薬を混合する反応容器と、
反応容器に挿入し、該反応容器洗浄後の洗浄液を吸引する吸引ノズルを備えた洗浄機構と、
該吸引ノズルに接続され前記吸引ノズル内を負圧にする吸引ポンプと、
前記吸引ノズルと前記吸引ポンプを接続する配管の間に設けられ、前記吸引ノズルと前記吸引ポンプを接続して該配管内を負圧にし、あるいは該配管内を大気開放するように切替える三方バルブと、を備えた自動分析装置において、
前記三方バルブの大気開放用ポートに、反応容器近傍に付着した液滴を吸引する吸引口が接続されていることを特徴とする自動分析装置。
A reaction container for mixing the specimen and the reagent;
A cleaning mechanism including a suction nozzle that is inserted into the reaction container and sucks the cleaning liquid after the reaction container is cleaned ;
A suction pump connected to the suction nozzle to create a negative pressure in the suction nozzle;
A three-way valve provided between a pipe connecting the suction nozzle and the suction pump, and switching between the suction nozzle and the suction pump so as to make the inside of the pipe a negative pressure or to release the inside of the pipe to the atmosphere; In an automatic analyzer equipped with
An automatic analyzer, wherein a suction port for sucking droplets adhering to the vicinity of a reaction vessel is connected to the atmosphere opening port of the three-way valve.
請求項1記載の自動分析装置において、
前記反応容器近傍に付着した液滴を受ける受け皿を備えたことを特徴とする自動分析装置。
The automatic analyzer according to claim 1, wherein
An automatic analyzer comprising a tray for receiving droplets adhering to the vicinity of the reaction vessel.
JP2006003160A 2006-01-11 2006-01-11 Automatic analyzer Expired - Fee Related JP4576340B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006003160A JP4576340B2 (en) 2006-01-11 2006-01-11 Automatic analyzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006003160A JP4576340B2 (en) 2006-01-11 2006-01-11 Automatic analyzer

Publications (2)

Publication Number Publication Date
JP2007187444A JP2007187444A (en) 2007-07-26
JP4576340B2 true JP4576340B2 (en) 2010-11-04

Family

ID=38342724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006003160A Expired - Fee Related JP4576340B2 (en) 2006-01-11 2006-01-11 Automatic analyzer

Country Status (1)

Country Link
JP (1) JP4576340B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5746851B2 (en) * 2010-11-29 2015-07-08 日立アロカメディカル株式会社 Dispensing device
CN105158024A (en) * 2015-09-14 2015-12-16 珠海迪尔生物工程有限公司 Negative pressure sample feeding instrument and negative pressure sample feeding method for biochemical analysis and identification plate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0618530A (en) * 1992-07-02 1994-01-25 Hitachi Ltd Automatic analyzer
JPH0871531A (en) * 1994-09-09 1996-03-19 Hiroyuki Kawakami Immunoassay apparatus
JPH11352131A (en) * 1998-06-05 1999-12-24 Hitachi Ltd Automatic analyzer
JP2002286736A (en) * 2001-03-28 2002-10-03 Canon Inc Method of manufacturing probe carrier and device of manufacturing probe carrier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0618530A (en) * 1992-07-02 1994-01-25 Hitachi Ltd Automatic analyzer
JPH0871531A (en) * 1994-09-09 1996-03-19 Hiroyuki Kawakami Immunoassay apparatus
JPH11352131A (en) * 1998-06-05 1999-12-24 Hitachi Ltd Automatic analyzer
JP2002286736A (en) * 2001-03-28 2002-10-03 Canon Inc Method of manufacturing probe carrier and device of manufacturing probe carrier

Also Published As

Publication number Publication date
JP2007187444A (en) 2007-07-26

Similar Documents

Publication Publication Date Title
JP4406643B2 (en) Liquid sampling probe and cleaning fluidics system
JP6647288B2 (en) Automatic analyzer and method
WO2012105398A1 (en) Automatic analyzing device
US9513305B2 (en) Multiple cleaning stations for a dispensing probe
JP2010210596A (en) Autoanalyzer and probe cleaning method
CN107206382B (en) Method and apparatus for providing reduced carryover during pipetting operations
JP4443271B2 (en) Automatic analyzer
JP2008128662A (en) Analyzer
JP4576340B2 (en) Automatic analyzer
WO2013027747A1 (en) Plug application and removal device and sample processing device
JP5489283B2 (en) Automatic analyzer
JP4175916B2 (en) Automatic analyzer
JP2011106828A (en) Dispensing device, automated analysis apparatus, and dispensing method
US20220057422A1 (en) Automated Analyzer
EP1335853B1 (en) Sample dispensing with liquid delivery without crossover
WO2020230403A1 (en) Automatic analyzing device
US20220034927A1 (en) Automated analyzer and cleaning method
JPWO2019078030A1 (en) Cleaning method for automatic analyzer and probe
US20220034926A1 (en) Automatic analyzer
US11090645B2 (en) Solution jetting device and method of controlling jet of solution
JP2003294773A (en) Clinical examination automatic analyzer, cleaning method for clinical examination automatic analyzer
JPH10332706A (en) Dilution device of automatic analyzer
JPH046468A (en) Method for accurately dispensing very small amount of specimen
JP2005291729A (en) Biochemical analyzer
JP2005291727A (en) Biochemical analyzer

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080421

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080421

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100609

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100622

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100713

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100803

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100823

R150 Certificate of patent or registration of utility model

Ref document number: 4576340

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130827

Year of fee payment: 3

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees