Container holding block and sampling unit

JP2026093776APending Publication Date: 2026-06-09TOSOH CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TOSOH CORP
Filing Date
2024-11-28
Publication Date
2026-06-09

AI Technical Summary

Benefits of technology

【0013】 本発明の一の態様に係るサンプリングユニットによれば、サンプル容器に挿入するために上下動駆動機構によってニードルを下降したときに、サンプル容器の外周部に当接する突起部を有する。突起部は、容器押さえブロックの胴体部の下端から下方側へ向けて延在するように構成されている。このため、容器押さえブロックは、突起部だけでサンプル容器を押さえることができ、容器押さえブロックに生体試料が付着する可能性を低減することができる。また、サンプル容器を押さえる部分を少なくすることによって、サンプル容器の特定の部位を最小限の接触で効果的に押さえることが可能になり、容器押さえブロックが接触したときのサンプル容器の損傷を抑制又は防止することができる。さらに、胴体部の下端から下方側へ向けて延在する突起部だけでサンプル容器を押さえることによって、生体試料の付着の有無は、突起部の周囲を重点的に確認すればよいため外部から容易に視認することができる。これらのことから、サンプリングユニットの容器押さえブロックは、サンプル容器を押さえる部分を少なくし、かつ、押さえる部分を外部から視認できるようにした上で、サンプル容器を安定して押さえることができる。

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Abstract

The present invention provides a container holding block that reduces the amount of material that holds the sample container, while allowing the holding portion to be visible from the outside, and a sampling unit equipped with the same. [Solution] The sampling unit 10 for analyzing a biological sample contained in a sample container 100 comprises a needle 16 inserted into the sample container 100 to aspirate the biological sample BS inside, a vertical movement drive mechanism 18 that moves the needle 16 up and down relative to the sample container 100, and a container holding block 14 configured to move up and down by the vertical movement drive mechanism 18, the container holding block 14 having a body portion 30 and a projection 32 that extends downward from the lower end of the body portion 30 and contacts the outer circumference of the sample container 100 when the needle 16 is inserted into the sample container 100.
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Claims

1. A sampling unit for analyzing a biological sample contained in a sample container, A needle inserted into the sample container to aspirate the biological sample from inside the sample container, A vertical movement drive mechanism for moving the needle up and down relative to the sample container, A container holding block configured to be vertically movable by the vertical drive mechanism, comprising a body portion and a projection portion extending downward from the lower end of the body portion and contacting the outer circumference of the sample container when the needle is inserted into the sample container, A sampling unit equipped with the following features.

2. The sampling unit according to claim 1, wherein the container holding block has two or more of the aforementioned protrusions.

3. The sampling unit according to claim 2, wherein two or more of the protrusions have the same height position at their tips relative to the sample container.

4. The sampling unit according to claim 1, wherein the tip of the projection has a flat portion that contacts the sample container.

5. The sampling unit according to claim 1, wherein the container holding block has a cylindrical shape extending downward from the lower end of the body portion and has a needle guide portion configured for the needle to pass along the vertical direction.

6. The sampling unit according to claim 1, wherein the container holding block has a cleaning liquid inlet for injecting cleaning liquid into the interior.

7. A container retaining block configured to allow insertion of a needle for aspirating a biological sample from inside a sample container, the container retaining block having a body portion and a projection portion extending downward from the lower end of the body portion and contacting the outer circumference of the sample container when the needle is inserted into the sample container.