The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2025
Filed:
Jan. 26, 2023
Applicant:
Nipro Corporation, Osaka, JP;
Inventors:
Assignee:
Nipro Corporation, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/026 (2006.01); A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/0215 (2006.01); G01P 5/10 (2006.01); G01R 19/165 (2006.01); G01R 31/52 (2020.01);
U.S. Cl.
CPC ...
A61B 5/026 (2013.01); A61B 5/02055 (2013.01); A61B 5/0215 (2013.01); A61B 5/6851 (2013.01); G01P 5/10 (2013.01); G01R 19/16571 (2013.01); G01R 19/16576 (2013.01); G01R 31/52 (2020.01); A61B 5/6852 (2013.01); A61B 2562/0247 (2013.01); A61B 2562/222 (2013.01); A61B 2562/227 (2013.01);
Abstract
A control circuit for a sensor provided in a long member which can be inserted into a lumen to measure the flow velocity of a fluid in the lumen and a measurement device. The control circuit includes a drive circuit supplying a drive current to the sensor. A leakage current detection circuit detects a leakage current and performs an output corresponding to the detected leakage current. The leakage current detection circuit outputs a detection signal in response to detection of a leakage current exceeding a threshold value. A stop circuit stopping supply of the drive current to the sensor by the detection signal is further provided.