JPH0445856A - Structure of thin film fitted to pipet tip - Google Patents

Structure of thin film fitted to pipet tip

Info

Publication number
JPH0445856A
JPH0445856A JP15567590A JP15567590A JPH0445856A JP H0445856 A JPH0445856 A JP H0445856A JP 15567590 A JP15567590 A JP 15567590A JP 15567590 A JP15567590 A JP 15567590A JP H0445856 A JPH0445856 A JP H0445856A
Authority
JP
Japan
Prior art keywords
thin film
pipetter
pipet tip
liq
sticking
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
Application number
JP15567590A
Other languages
Japanese (ja)
Inventor
Toshimasa Akiyama
秋山　利正
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP15567590A priority Critical patent/JPH0445856A/en
Publication of JPH0445856A publication Critical patent/JPH0445856A/en
Pending legal-status Critical Current

Links

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  • Devices For Use In Laboratory Experiments (AREA)

Abstract

PURPOSE:To prevent the sticking of droplets of a liq. and mist to the body of a pipetter and the suction of them into the body and to also prevent cross contamination by forming a thin film between the body of the pipetter and a pipet tip handling the liq. CONSTITUTION:When a pipet tip 5 is fitted to the body 1 of an air substitution type pipetter and this pipetter is used, a bag-shaped thin film is formed between the body 1 and the tip 5. This thin film is easily deformed without producing a remarkable difference in atmospheric pressure between the front and rear sides of the film in accordance with the movement of a plunger 4 within the range of pipetting operation. The sticking of droplets of a liq. and mist to the body 1 and the suction of them into the body 1 are prevented and cross contamination due to the sticking and suction is also prevented.

Description

【発明の詳細な説明】 医学・生物学的な研究・試験で広く用いられている空気
置換式のピペッタ−は、構造上、液滴やミストがその本
体に付着したり吸い込まれたりする事があり、それらは
引き続いて扱われる液体と共に排出されてクロスコンタ
ミネーションを起こす事がある。これによるクロスコン
タミネーションの防止は専ら操作者の注意力と手技の熟
度に頼るのみで、それでもなお完全を期す事はできず、
根本的な防止策は無力いった。[Detailed Description of the Invention] Air displacement pipetters, which are widely used in medical and biological research and testing, have a structure that prevents droplets and mist from adhering to or being sucked into the main body. Yes, they can be expelled with subsequently handled liquids, causing cross-contamination. Prevention of cross-contamination through this method relies solely on the operator's attentiveness and proficiency in the procedure, and even then, it cannot be completely guaranteed.
Fundamental preventive measures were ineffective.

本発明はピペッタ−本体と扱う液体の間に薄膜を設ける
事によって液滴やミストが本体に付着したり吸い込まれ
たりする事を無くし、それによるクロスコンタミネーシ
ョンを防ぐものである。The present invention prevents droplets and mist from adhering to or being sucked into the pipetter body by providing a thin film between the pipetter body and the liquid to be handled, thereby preventing cross-contamination.

薄膜は袋状の形態で、ピペット操作の範囲内で、プラン
ジャーの動きに応じて、膜前後の気圧に顕著な差を生じ
ない程容易に変形する物とする。The thin membrane is in the form of a bag and is easily deformed within the range of pipetting and in response to the movement of the plunger so as not to cause a significant difference in the air pressure across the membrane.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は特許請求の範囲１の物を装着した場合の断面図
、第２、特許請求の範囲２の物を装着して排気後吸液前
の断面図、第３図は特許請求の範囲２の物を装着して吸
液したところの断面図、第４図は特許請求の範囲２の物
を装着して液を完全に排出したところの断面図である。 ここに、１はピペッタ−のシリンダーまたはその延長部
（ピペットチップ装着部）、２は薄膜構造体、３は一般
のピペットチップ、４はピペッタ−のプランジャー　５
は薄膜構造を着けて一体としたピペットチップ、６は液
体である。 秋山利正 第１ 回 ｖＪｚ口 ＼＼＼゛ 第３（ ◇ 第４０ コFig. 1 is a sectional view when the item according to claim 1 is installed, 2nd is a sectional view after exhaust and before liquid absorption when the item according to claim 2 is installed, and Fig. 3 is the item according to claim 2. FIG. 4 is a sectional view of the device according to claim 2 installed and the liquid completely drained. Here, 1 is the pipetter cylinder or its extension (pipette tip attachment part), 2 is the thin film structure, 3 is a general pipette tip, 4 is the plunger of the pipetter, and 5
6 is a pipette tip integrated with a thin film structure, and 6 is a liquid. Toshimasa Akiyama 1st vJz mouth＼＼＼゛3rd( ◇ 40th

Claims (1)

【特許請求の範囲】 １、ピペットチップを着けて使う空気置換式のピペッタ
ーの本体とピペットチップの間に装着して用いる薄膜構
造。 ２、特許請求の範囲１の構造を着けて一体としたピペッ
トチップ。[Claims] 1. A thin film structure that is used by being attached between the pipette tip and the main body of an air displacement pipettor that is used by attaching a pipette tip. 2. A pipette tip integrated with the structure of claim 1.
JP15567590A 1990-06-14 1990-06-14 Structure of thin film fitted to pipet tip Pending JPH0445856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15567590A JPH0445856A (en) 1990-06-14 1990-06-14 Structure of thin film fitted to pipet tip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15567590A JPH0445856A (en) 1990-06-14 1990-06-14 Structure of thin film fitted to pipet tip

Publications (1)

Publication Number Publication Date
JPH0445856A true JPH0445856A (en) 1992-02-14

Family

ID=15611120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15567590A Pending JPH0445856A (en) 1990-06-14 1990-06-14 Structure of thin film fitted to pipet tip

Country Status (1)

Country Link
JP (1) JPH0445856A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5677860A (en) * 1993-10-19 1997-10-14 Mitsubishi Denki Kabushiki Kaisha Overflow and underflow processing circuit of a binary adder
JP2002340746A (en) * 2001-05-11 2002-11-27 Nippon Soda Co Ltd Tool for preventing suction in pipetter
JP2006242947A (en) * 2005-03-04 2006-09-14 Novaseptic Ab Sterile syringe
JP2010156545A (en) * 2008-12-26 2010-07-15 Kawasaki Heavy Ind Ltd Partition wall unit for pipetter and pipette
CN106311369A (en) * 2016-10-13 2017-01-11 东南大学 Anti-pollution pipette tip
WO2019018911A1 (en) * 2017-07-26 2019-01-31 Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein Sealing film and method of pipetting using a sealing film
JP2020520646A (en) * 2017-05-19 2020-07-16 スライブ バイオサイエンス， インコーポレイテッド Liquid transfer system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5677860A (en) * 1993-10-19 1997-10-14 Mitsubishi Denki Kabushiki Kaisha Overflow and underflow processing circuit of a binary adder
JP2002340746A (en) * 2001-05-11 2002-11-27 Nippon Soda Co Ltd Tool for preventing suction in pipetter
JP4574061B2 (en) * 2001-05-11 2010-11-04 日本曹達株式会社 Pipetter wicking prevention device
JP2006242947A (en) * 2005-03-04 2006-09-14 Novaseptic Ab Sterile syringe
US7597683B2 (en) 2005-03-04 2009-10-06 Millipore Ab Sterile syringe
JP2010156545A (en) * 2008-12-26 2010-07-15 Kawasaki Heavy Ind Ltd Partition wall unit for pipetter and pipette
CN106311369A (en) * 2016-10-13 2017-01-11 东南大学 Anti-pollution pipette tip
JP2020520646A (en) * 2017-05-19 2020-07-16 スライブ バイオサイエンス， インコーポレイテッド Liquid transfer system
US11724254B2 (en) 2017-05-19 2023-08-15 Thrive Bioscience, Inc. Liquid transfer system
WO2019018911A1 (en) * 2017-07-26 2019-01-31 Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein Sealing film and method of pipetting using a sealing film

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