Filter set of computed tomography scanning device and control method thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 14, 2020
Grant Date -
Jul 6, 2017
app pub date -
Dec 9, 2016
filing date -
Dec 30, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A filter set of a CT scanning device and control method thereof are provided. An example of the CT scanning device includes a gantry, an X-ray generator, a filter set, a detector, and a drive motor. The filter set includes a disc, a filter disposed on the disc and having a substantially annular groove structure, and a drive shaft connected to the disc. A body thickness of the annular groove structure varies in a circumferential direction and a radial direction. A shaft axis of the drive shaft is parallel to a radiation direction of X-ray. As the drive shaft is driven by the drive motor, the disc rotates around the shaft axis, such that a region of the filter is aligned with the radiation direction of the X-ray, and a body thickness of the region corresponds to a respective X-ray attenuation for an examination region of a subject.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- A61B Class
- 18399 Applications Filed
- 13681 Patents Issued To-Date
- 74.36 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 5 Citation Count
- A61B Class
- 39.73 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 14, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 14, 2032 |
