Title:
SAMPLE ANALYSIS APPARATUS AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/207207
Kind Code:
A1
Abstract:
A sample analysis apparatus and a control method therefor. The sample analysis apparatus comprises a cleaning member (2), which is provided with a cleaning cavity (21), and a liquid inlet (22) and a liquid outlet (23) communicating with the cleaning cavity (21). A ventilation hole (13) of a sampling needle (1) is close to a fixed end of the sampling needle (1). In a cleaning mode, a transmission mechanism drives the sampling needle (1) to move back and forth in the cleaning cavity (21) in an axial direction of the cleaning member (2), and the sampling hole (12) is at a first distance (D1) and a second distance (D2) respectively from the liquid inlet (22) and the liquid outlet (23) in the axial direction of the cleaning member (2). When the sampling needle (1) is positioned at a first position, the first distance (D1) is less than the second distance (D2), a pumping system (3) supplies cleaning liquid to the liquid inlet (22) and sucks cleaning liquid from the liquid outlet (23) to clean an outer wall of the sampling needle (1). When the sampling needle (1) is positioned at a second position, the first distance (D1) is greater than the second distance (D2), the pumping system (3) supplies cleaning liquid into a sampling channel (11) from the ventilation hole (13) and sucks cleaning liquid output from the sampling hole (12) from the liquid outlet (23) to clean an inner wall of the sampling needle (1). The sample analysis apparatus can prevent the cleaning liquid from leaking from a bottom of the cleaning member (2).
Inventors:
YAN BIN (CN)
Application Number:
PCT/CN2022/144426
Publication Date:
November 02, 2023
Filing Date:
December 31, 2022
Export Citation:
Assignee:
SHENZHEN DYMIND BIOTECHNOLOGY CO LTD (CN)
International Classes:
G01N35/00; G01N35/10
Foreign References:
| CN114563588A | 2022-05-31 | |||
| US5592959A | 1997-01-14 | |||
| CN101884885A | 2010-11-17 | |||
| CN107214129A | 2017-09-29 | |||
| CN112858659A | 2021-05-28 | |||
| CN215613805U | 2022-01-25 |
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
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