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Patent Searching and Data


Title:
WASTE LIQUID STORAGE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/205822
Kind Code:
A1
Abstract:
A pump (30) communicates with a waste liquid storage container (20), and generates negative pressure for drawing waste liquid into the waste liquid storage container (20). A sensor (40) measures the negative pressure. A drive unit (51) controls the drive of the pump (30). A calculation unit (52) detects, for example, air leakage from changes in the negative pressure. The drive unit (51) performs the drive control using an ON period Ton during which the pump (30) is operated, and an OFF period Toff during which the pump (30) is stopped. The calculation unit (52) detects air leakage using changes in the negative pressure during the OFF period Toff.

Inventors:
FUJISAKI MASAAKI (JP)
TAKEUCHI SUSUMU (JP)
Application Number:
PCT/JP2021/010497
Publication Date:
October 14, 2021
Filing Date:
March 16, 2021
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
A61M1/00
Foreign References:
JP2016093227A2016-05-26
JP2004049706A2004-02-19
JP2012196272A2012-10-18
JP2019041780A2019-03-22
JP2014136104A2014-07-28
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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