Sample extraction tool

Patent metadata

Field	Value
Publication number	US-11333583-B2
Application number	US-201916407302-A
Country	US
Kind code	B2
Filing date	May 9, 2019
Priority date	May 29, 2018
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

An extraction portion which is a piece of a micro sampling chip is safely cut, and the cut extraction portion can be accommodated in a predetermined container without impairing quantitativeness of a sample.A sample extraction tool comprises a through hole for cutting the extraction portion from the micro sampling chip by bending the micro sampling chip while inserting the extraction portion to the through hole, the sample extraction tool is configured to be attached to an upper portion of a container for accommodating the extraction portion in such a state that the through hole is disposed on an open upper surface of the container.

First claim

What is claimed is:

1. A system comprising:
a container, a sample extraction tool; and a micro sampling chip, wherein
the micro sampling chip includes a microchannel for holding a sample and is configured to be cut into a piece as an extraction portion, in which a portion of the sample held in the microchannel is held, in order to take out the portion of the sample as the sample to be extracted, the microchannel further includes a linear portion extending from a tip side to a base end side of the micro sampling chip, the extraction portion is a piece between a tip portion and a base end portion of the micro sampling chip,
the container includes an open upper surface and an inner space for accommodating the extraction portion,
the sample extraction tool comprises a chip tip accommodating portion and a through hole, the chip tip accommodating portion has a space and an opening provided above the space, the sample extraction tool is attached to an upper portion of the container such that the through hole is disposed on an open upper surface of the container and leads to the inner space of the container, the through hole and the opening are provided at an upper surface of the sample extraction tool, and the sample extraction tool is configured so that the space of the chip tip accommodating portion is disposed outside of the inner space of the container,
the tip portion of the micro sampling chip fits into the opening and is accommodated in the space, the opening cuts the tip portion from the other portion of the micro sampling chip by bending the micro sampling chip while the tip portion is fit into the opening, and the tip portion that has been cut from the other portions of the micro sampling chip is held in the space, and
after the tip portion that has been cut from the other portions of the micro sampling chip, the extraction portion of the micro sampling chip is inserted to the through hole, and the through hole cuts the extraction portion from the micro sampling chip by bending the micro sampling chip.

2. The system according to claim 1 , wherein the sample extraction tool further comprises a cap shape attached to the upper portion of the container so as to cover the upper portion of the container.

Assignees

• Shimadzu Corp

Inventors

• Hanafusa Nobuhiro

Classifications

• G01N1/08 Primary

  involving an extracting tool, e.g. core bit · CPC title

• B01L3/508

  Rigid containers without fluid transport within · CPC title

• B01L2400/0406

  capillary forces · CPC title

• B01L3/502707 Primary

  characterised by the manufacture of the container or its components · CPC title

• B01L2400/0683

  mechanically breaking a wall or membrane within a channel or chamber · CPC title