Actively shielded, cylindrical gradient coil system with passive RF shielding for NMR devices
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 14, 2017
Issued Date -
N/A
app pub date -
Mar 18, 2014
filing date -
Mar 20, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
|
US Family Size
|
Non-US Coverage
|
|
Patent Longevity
|
Forward Citations
|
Abstract
A gradient coil system has a cylindrical section in a central region, which contains no conductor elements and has a maximum outer radius that is larger than a minimum inner radius of conductor elements of a main gradient coil. An outer radius of this cylindrical section is only insubstantially smaller or equal in size to a minimum inner radius of a shielding coil in this axial range. The free space in the center of the gradient coil system is used to insert a passive RF shield, whose radius in a central region becomes larger over a certain length than its radius in outer regions. The RF shield is constructed from at least three partial sections, which are electrically interconnected. The actively shielded gradient coil system maximizes the volume of the RF region without loss of gradient coil system performance.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| DE | B3 | DE102013204952 | Mar 20, 2013 |
| CH | B1 | CH707701 | Mar 14, 2014 |
| GB | B | GB2514467 | Mar 18, 2014 |
| JP | B2 | JP5837954 | Mar 18, 2014 |
| CN | B | CN104062612 | Mar 20, 2014 |
International Classification(s)
- 2014 Application Filing Year
- G01R Class
- 4836 Applications Filed
- 4099 Patents Issued To-Date
- 84.77 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- G01R Class
- 15.81 % this patent is cited more than
- 8 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 | May 14, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 14, 2029 |
