US4528510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for generating images of an object under examination using nuclear magnetic resonance
Assignee: Siemens AG
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Filing: 1983-08-11
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Granted: 1985-07-09
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Expires: 2003-08-11
Abstract
Abstract The invention involves a device for generating images using nuclear magnetic resonance in which coils are provided for applying magnetic fields to the patient and for recording the displacement of the atomic nuclei of the patient from their equilibrium state by a high-frequency magnetic excitation pulse. Calibration devices are attached in the coils so that, for each image plane selected, they are at least partially intersected by the image plane during measurement of a patient.
Inventors
- 👤 Wilfried Loeffler
- 👤 Arnulf Oppelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:41
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/20; G01R33/44; G01R33/48; G01R33/50; G01R33/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
In a device for generating images of an object under examination using nuclear magnetic resonance in which coils are provided for applying magnetic fields to the object under examination, and for recording the displacement of the atomic nuclei of the object under examination from their equilibrium state by a high-frequency magnetic excitation pulse, and in which at least one calibration device is attached to the coils, the improvement comprising, a calibration device designed so that it at least partially encompasses the object of examination externally during measurement, and that, for each image plane selected, it is at least partially intersected by the image plane during measurement.
Claim 2
Dependent Claim
106 words
In a device for generating images of an object under examination using nuclear magnetic resonance in which coils are provided for applying magnetic fields to the object under examination, and for recording the displacement of the atomic nuclei of the object under examination from their equilibrium state by a high-frequency magnetic excitation pulse, and in which at least one calibration device is attached to the coils, the improvement comprising, a calibration device designed so that it at least partially encompasses the object of examination externally during measurement, and that, for each image plane selected, it is at least partially intersected by the image plane during measurement.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-08 | 1989-01-07 | 1989-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-08 | 1993-01-07 | 1993-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-08 | 1997-01-07 | 1997-07-09 | $7700.00 | Window Closed / Lapsed |