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:
Jul. 29, 2025
Filed:
Aug. 30, 2023
Canon Medical Systems Corporation, Otawara, JP;
CANON MEDICAL SYSTEMS CORPORATION, Otawara, JP;
Abstract
In one embodiment, an X-ray diagnostic apparatus includes: an X-ray generator; a current measurement circuit; a display; and processing circuitry. The X-ray generator includes: a filament connected to a cathode of an X-ray tube and configured to emit electrons; a target connected to an anode of the X-ray tube and configured to generate X-rays by receiving the electrons; and a grid configured to adjust an electric potential gradient around the filament. The current measurement circuit measures an electric current flowing between an electrode of the grid and a common electrode of the filament. The processing circuitry calculates an index related to a lifetime of the filament on the basis of a measurement value of the electric current, and causes the display to display the index.