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:
Oct. 04, 2022
Filed:
Jan. 15, 2020
Nikkiso Company Limited, Tokyo, JP;
Hitoshi Goto, Shizuoka, JP;
Masahiro Toyoda, Shizuoka, JP;
Tomoya Murakami, Shizuoka, JP;
Kunihiko Akita, Shizuoka, JP;
Nikkiso Company Limited, Tokyo, JP;
Abstract
A blood purification apparatus is provided that is capable of detecting an abnormal state of puncture into a blood vessel with an arterial puncture needle or a venous puncture needle. The blood purification apparatus includes an oscillating device capable of supplying an alternating current at a predetermined frequency and changing the frequency of the alternating current among a plurality of frequencies, a measuring device capable of measuring an impedance for each of the frequencies, a calculating device capable of acquiring an impedance frequency characteristic, a storage device capable of storing an impedance frequency characteristic acquired in a case of normal puncture into the patient's blood vessel with an arterial puncture needle and a venous puncture needle, and an identifying device capable of identifying whether the puncture into the blood vessel with the arterial puncture needle a or the venous puncture needle b is normal in accordance with the change observed between the impedance frequency characteristic acquired by the calculating device and the impedance frequency characteristic stored in the storage device.