US4597096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multitube collimator for for instance scintillation camera
Assignee: Individual
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Filing: 1981-09-09
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Granted: 1986-06-24
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Expires: 2001-09-09
Abstract
Abstract A multitube collimator for a camera, especially a scintillation camera, whose sensitivity and resolving power may be varied by changing the length, slope, dimension or shape of the tubes (10). This is achieved by that the grid at least at two opposed limiting sides is surrounded by guiding means (11) which are arranged to, by parallel movement and/or by moving towards or apart from each other, influence the collimator tubes (10) collectively referred to the positions of the tubes relative to the guiding means (11) and/or the dimension of the tubes in the longitudinal and/or transverse direction.
Inventors
- 👤 Agne Larsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:21
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/02; G21K1/025; G01; G01T; G01T1/00; G01T1/16; G01T1/161; G01T1/164; G01T1/1641; G01T1/1642; A; A61; A61B; A61B6/00; A61B6/42; A61B6/4208; A61B6/4258
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A collimator placed between a radiation source and a radiation sensitive medium, comprising: a plurality of lamellae having partitions extending in spaced, parallel relationship to each other, each lamella also having a plurality of spaced flanges extending transverse to said partitions, adjacent partitions and flanges defining therebetween collimator apertures of a certain size in a plane perpendicular to said flanges and partitions, at least one lamella being movable with respect to adjacent lamellae in said plane transverse to said partitions such that the size of the collimator apertures between said movable and adjacent lamellae can be changed.
Claim 2
Dependent Claim
97 words
A collimator placed between a radiation source and a radiation sensitive medium, comprising: a plurality of lamellae having partitions extending in spaced, parallel relationship to each other, each lamella also having a plurality of spaced flanges extending transverse to said partitions, adjacent partitions and flanges defining therebetween collimator apertures of a certain size in a plane perpendicular to said flanges and partitions, at least one lamella being movable with respect to adjacent lamellae in said plane transverse to said partitions such that the size of the collimator apertures between said movable and adjacent lamellae can be changed.
Claim 3
Dependent Claim
97 words
A collimator placed between a radiation source and a radiation sensitive medium, comprising: a plurality of lamellae having partitions extending in spaced, parallel relationship to each other, each lamella also having a plurality of spaced flanges extending transverse to said partitions, adjacent partitions and flanges defining therebetween collimator apertures of a certain size in a plane perpendicular to said flanges and partitions, at least one lamella being movable with respect to adjacent lamellae in said plane parallel to said partitions such that the size of the collimator apertures between said movable and adjacent lamellae can be changed.
Claim 4
Dependent Claim
97 words
A collimator placed between a radiation source and a radiation sensitive medium, comprising: a plurality of lamellae having partitions extending in spaced, parallel relationship to each other, each lamella also having a plurality of spaced flanges extending transverse to said partitions, adjacent partitions and flanges defining therebetween collimator apertures of a certain size in a plane perpendicular to said flanges and partitions, at least one lamella being movable with respect to adjacent lamellae in said plane parallel to said partitions such that the size of the collimator apertures between said movable and adjacent lamellae can be changed.
Claim 5
Dependent Claim
100 words
A collimator placed between a radiation source and a radiation sensitive medium, comprising: a plurality of lamellae having partitions extending in spaced, parallel relationship to each other, each lamella also having a plurality of spaced flanges extending transverse to said partitions, adjacent partitions and flanges defining therebetween collimator apertures of a certain size in a plane perpendicular to said flanges and partitions, at least one lamella being movable with respect to adjacent lamellae in said plane parallel to and transverse to said partitions such that the size of the collimator apertures between said movable and adjacent lamellae can be changed.
Claim 6
Dependent Claim
100 words
A collimator placed between a radiation source and a radiation sensitive medium, comprising: a plurality of lamellae having partitions extending in spaced, parallel relationship to each other, each lamella also having a plurality of spaced flanges extending transverse to said partitions, adjacent partitions and flanges defining therebetween collimator apertures of a certain size in a plane perpendicular to said flanges and partitions, at least one lamella being movable with respect to adjacent lamellae in said plane parallel to and transverse to said partitions such that the size of the collimator apertures between said movable and adjacent lamellae can be changed.
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) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |