US4791371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus useful in magnetic resonance imaging
Assignee: Memorial Sloan Kettering Cancer Center
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Filing: 1986-11-17
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Granted: 1988-12-13
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Expires: 2006-11-17
Abstract
Abstract Apparatus are described which is useful in continuous operation of magnetic resonance imaging studies. The apparatus permits examination of subjects without repositioning of the subject and produces more accurate studies than previously possible.
Inventors
- 👤 George S. Krol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:53
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/04; A61B6/0407; A61B6/0442; A61B5/00; A61B5/05; A61B5/055; A61B5/70; A61B5/704; G; G01; G01R; G01R33/00; G01R33/20; G01R33/28; G01R33/32; G01R33/34; G01R33/341
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
141 words
Apparatus for examination of a subject using magnetic resonance imaging, comprising: (a) a support means for said subject, said support means including non-magnetic plate; (b) a plurality of non-magnetic support pilars, said pilars being attached to said plate by non-magnetic means, and adapted for reception of a sleeve means; (c) a sleeve means which engages said pilars, said sleeve means comprising a locking means; (d) a surface coil for use in magnetic resonance imaging, said coil comprising a second locking means adapted for engagement with the locking means of said sleeve means and said sleeve means and surface coil being so adapted so that said coil fits into said sleeve means and may be moved along the longitudinal axis of said sleeve means; and (e) a non-magnetic traction means attached to said coil for moving said coil in said sleeve means.
Claim 2
Dependent Claim
141 words
Apparatus for examination of a subject using magnetic resonance imaging, comprising: (a) a support means for said subject, said support means including non-magnetic plate; (b) a plurality of non-magnetic support pilars, said pilars being attached to said plate by non-magnetic means, and adapted for reception of a sleeve means; (c) a sleeve means which engages said pilars, said sleeve means comprising a locking means; (d) a surface coil for use in magnetic resonance imaging, said coil comprising a second locking means adapted for engagement with the locking means of said sleeve means and said sleeve means and surface coil being so adapted so that said coil fits into said sleeve means and may be moved along the longitudinal axis of said sleeve means; and (e) a non-magnetic traction means attached to said coil for moving said coil in said sleeve means.
Claim 3
Dependent Claim
23 words
Apparatus of claim 1, wherein said sleeve means comprises a plurality of paired locking means, said locking means equidistantly spaced from each other.
Claim 4
Dependent Claim
10 words
Apparatus of claim 1, wherein said surface coil is rectangular.
Claim 5
Dependent Claim
10 words
Apparatus of claim 1, wherein said surface coil is ring-shaped.
Claim 6
Dependent Claim
13 words
An apparatus of claim 1, wherein the non-magnetic traction means comprises a rod.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-13 | 1992-06-13 | 1992-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-13 | 1996-06-13 | 1996-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-13 | 2000-06-13 | 2000-12-13 | $7700.00 | Window Closed / Lapsed |