US5063933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic resonance imaging apparatus
Assignee: Toshiba Corp
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Filing: 1990-06-13
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Granted: 1991-11-12
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Expires: 2010-06-13
Abstract
Abstract In a magnetic resonance imaging apparatus for use in magnetic resonance diagnosis of a patient, there is provided a transmitter-receiver coil affixed to a holding member or bracket which is movably supported by three easily hand bendable, flexible members which rigidly hold the position in which they are bent. The lower extremity of each flexible member is mounted upon a fixing member which can be moved longitudinally along a patient support or table for placement of the coil.
Inventors
- 👤 Ryoichi Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:19
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/20; G01R33/28; G01R33/32; G01R33/34; G01R33/34007; G01R33/341
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
112 words
A magnetic resonance imaging apparatus comprising: means for providing a uniform magnetic field to a subject; means for providing a gradient magnetic field to said subject; a table to hold said subject; coil means for applying an exciting magnetic field to said subject to produce a magnetic resonance phenomenon causing a magnetic resonance signal containing information on internal conditions of said subject and for detecting said signal; a holding means for holding said coil means; a plurality of flexible members having sufficient strength to position said holding means and said coil means entirely in space above said table; and a fixing means for fixing said plurality of flexible members to said table.
Claim 2
Dependent Claim
112 words
A magnetic resonance imaging apparatus comprising: means for providing a uniform magnetic field to a subject; means for providing a gradient magnetic field to said subject; a table to hold said subject; coil means for applying an exciting magnetic field to said subject to produce a magnetic resonance phenomenon causing a magnetic resonance signal containing information on internal conditions of said subject and for detecting said signal; a holding means for holding said coil means; a plurality of flexible members having sufficient strength to position said holding means and said coil means entirely in space above said table; and a fixing means for fixing said plurality of flexible members to said table.
Claim 3
Dependent Claim
21 words
A magnetic resonance imaging apparatus according to claim 1, wherein said plurality of flexible members consists essentially of three flexible members.
Claim 4
Dependent Claim
17 words
A magnetic resonance imaging apparatus according to claim 2, wherein said three flexible members comprise plastic pipes.
Claim 5
Dependent Claim
50 words
A magnetic resonance imaging apparatus according to claim 1, further comprising: a plurality of screws for fixing said fixing means to said table, one of said screws being located at a side of said fixing means and another of said screws being located at a base of said fixing means.
Claim 6
Dependent Claim
22 words
A magnetic resonance imaging apparatus according to claim 1, further comprising a pin for fixing said coil means to said holding means.
Claim 7
Dependent Claim
18 words
A magnetic resonance imaging apparatus according to claim 1, wherein said coil means comprises a circular surface coil.
Claim 8
Dependent Claim
120 words
A magnetic resonance imaging apparatus comprising: means for providing a uniform magnetic field to a subject; means for providing a gradient magnetic field to said subject; surface means for placement of said subject; coil means for applying an exciting magnetic field to said subject and for detecting a magnetic resonance signal from said subject; and means for connecting said coil means to said surface means and for holding said coil means a distance from said surface means sufficient to interpose said subject between said coil means and said surface means, said means for connecting and holding including a plurality of flexible members having sufficient strength to place and maintain said coil means entirely at a special position defining said distance.
Claim 9
Dependent Claim
120 words
A magnetic resonance imaging apparatus comprising: means for providing a uniform magnetic field to a subject; means for providing a gradient magnetic field to said subject; surface means for placement of said subject; coil means for applying an exciting magnetic field to said subject and for detecting a magnetic resonance signal from said subject; and means for connecting said coil means to said surface means and for holding said coil means a distance from said surface means sufficient to interpose said subject between said coil means and said surface means, said means for connecting and holding including a plurality of flexible members having sufficient strength to place and maintain said coil means entirely at a special position defining said distance.
Claim 10
Dependent Claim
16 words
An apparatus as claimed in claim 7, wherein said coil means comprises a circular surface coil.
Claim 11
Dependent Claim
33 words
An apparatus as claimed in claim 7, said means for connecting and holding further comprising: a holding member to hold said coil means, said plurality of flexible members solely supporting said holding member.
Claim 12
Dependent Claim
29 words
An apparatus as claimed in claim 9, said means for connecting and holding further comprising: a base member to mount said plurality of flexible members on said surface means.
Claim 13
Dependent Claim
18 words
An apparatus as claimed in claim 7, wherein said plurality of flexible members consists of three flexible members.
Claim 14
Dependent Claim
15 words
An apparatus as claimed in claim 11, wherein said three flexible members comprise plastic pipes.
References Cited (Backward Citations)
US599543A
Cited
US1279803A
Cited
US1566198A
Cited
US3584822A
Cited
US4069995A
Cited
US4634980A
Cited
DE3628035A1
Cited
US4891596A
Cited
US4791372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |