Automated analyzers and piercer needles

The automatic analysis device addresses the challenge of cleaning the piercing needle by integrating a cleaning medium supply unit into the piercing needle, allowing for efficient internal cleaning without additional components, thus reducing costs and improving layout flexibility.

JP7669203B2Active Publication Date: 2025-04-28CANON MEDICAL SYST CORP
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Patent Information

Application Number
JP2021100481
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-06-16
Publication Date
2025-04-28
Estimated Expiration
2041-06-16

AI Technical Summary

Technical Problem

Existing automatic analyzers face challenges in effectively cleaning the piercing needle without a separate cleaning unit, leading to inefficiencies and increased manufacturing costs due to the need for precise alignment and additional components.

Method used

The automatic analysis device incorporates a piercing needle with a built-in cleaning medium supply unit that supplies cleaning media from an oblique angle above the axial direction of the piercing nozzle, allowing for internal cleaning without a separate cleaning unit.

Benefits of technology

This solution enables efficient cleaning of the piercing needle's interior without the need for additional cleaning mechanisms, reducing manufacturing costs and improving layout flexibility, while preventing washing water from flowing backwards and minimizing pressure loss.

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Abstract

To wash the inside of a piercer needle without providing a washing unit that supplies washing water.SOLUTION: An autoanalyzer according to an embodiment is an autoanalyzer comprising a piercer needle that pierces a cap of a sample container that is sealed on a top face with the cap. The piercer needle comprises: a piercer nozzle that pierces the cap with its point; and a washing medium supply unit that supplies a washing medium for washing the inside of the piercer nozzle, the washing medium supply unit supplying the washing medium to the inside of the piercer nozzle from obliquely above with respect to an axial direction of the piercer nozzle.SELECTED DRAWING: Figure 1
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