Patent US4408959A successfully refreshed from Google Patents.
EP0465952A2
Expired / Lapsed
EP
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Diagnostic apparatus for nuclear medicine
Assignee: Toshiba Corp
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Filing: 1991-06-28
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Granted: —
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Expires: 2011-06-28
Abstract
Abstract In a diagnostic apparatus of this invention, an accumulated or deposited state of an administered radioactive medicine in an organ or the like of a living body is detected from the outside of the living body by detecting portions, each constituted by at least one scintillation detector and at least one collimator, so as to obtain an image of the state. The apparatus includes three detecting portions (13A, 13B, 13C). Driving mechanisms (15A, 15B, 15C) are provided for at least two of the detecting portions to linearly move and rotate them.
Inventors
- 👤 Horifumi c/o Intellectual Property Division Iwao
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 07:36
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/161; G01T1/164; G01T1/1641; G01T1/1648; A; A61; A61B; A61B6/00; A61B6/02; A61B6/03; A61B6/037; G01T1/1642
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
89 words
A diagnostic apparatus for nuclear medicine in which a detection operation is performed from the outside of a living body by a detecting portion constituted by at least one scintillation detector and at least one collimator to obtain an image, characterized in that said detecting portion (13A, 13B, 13C) is constituted by three detecting portion pairs (13A, 13B, 13C), each constituted by a scintillation detector (17) and a collimator (16), including: mechanisms (15A, 15B, 15C) for linearly moving and rotating at least two of said three detecting portion pairs.
Claim 2
Dependent Claim
34 words
An apparatus according to claim 1, characterized in that said three detecting portion pairs (13A, 13B, 13C) are arranged such that a triangle is defined by detection surfaces of said scintillation detectors (17) thereof.
Claim 3
Dependent Claim
37 words
An apparatus according to claim 1, characterized in that said three detecting portion pairs (13A, 13B, 13C) are arranged such that at least two opposing detection surfaces are defined by detection surfaces of said scintillation detectors (17).
Claim 4
Dependent Claim
27 words
An apparatus according to claim 1 or 2, characterized in that said collimators (16) of said three detecting portion pairs (13A, 13B, 13C) are fan beam collimators.
Claim 5
Dependent Claim
32 words
An apparatus according to claim 1 or 3, characterized in that said collimator (16) of at least one of said three detecting portion pairs (13A, 13B, 13C) is a parallel beam collimator.
Claim 6
Dependent Claim
172 words
A diagnostic apparatus for nuclear medicine characterized in that a detection operation is performed from the outside of a living body by a detecting portion constituted by at least one scintillation detector and at least one collimator to obtain an image, characterized in that said apparatus comprises: a gantry (11); a rotating ring (12) arranged on said gantry (11) so as to rotate said rotating ring (12) with the gantry (11) and having a patient insertion hole (13) formed in a central portion thereof; three detecting portion pairs (13A, 13B, 13C) arranged around the hole (13) in said rotating ring (12), each of said detecting portion pairs (13A, 13B, 13C) being constituted by a scintillation detector (17) and a collimator (16); moving mechanisms (15A, 15B, 15C) for linearly moving and rotating at least two of said three detecting portion pairs (13A, 13B, 13C); and a bed unit (20) having a slide top plate (21) for transferring a patient to be examined to a position near said detecting portion pairs (13A, 13B, 13C).
Claim 7
Dependent Claim
34 words
An apparatus according to claim 6, characterized in that said three detecting portion pairs (13A, 13B, 13C) are arranged such that a triangle is defined by detection surfaces of said scintillation detectors (17) thereof.
Claim 8
Dependent Claim
25 words
An apparatus according to claim 7, characterized in that said collimators (16) of said three detecting portion pairs (13A, 13B, 13C) are fan beam collimators.
Claim 9
Dependent Claim
32 words
An apparatus according to claim 8, characterized in that a SPECT image in a small field of view is reconstructed by using data detected by said detecting portion pairs (13A, 13B, 13C).
Claim 10
Dependent Claim
25 words
An apparatus according to claim 7, characterized in that said collimators (16) of said three detecting portion pairs (13A, 13B, 13C) are parallel beam collimators.
Claim 11
Dependent Claim
32 words
An apparatus according to claim 10, characterized in that a SPECT image in a large field of view is reconstructed by using data detected by said detecting portion pairs (13A, 13B, 13C).
Claim 12
Dependent Claim
26 words
An apparatus according to claim 10, characterized in that a planar image is reconstructed by using data detected by said detecting portion pairs (13A, 13B, 13C).
Claim 13
Dependent Claim
37 words
An apparatus according to claim 6, characterized in that said three detecting portion pairs (13A, 13B, 13C) are arranged such that at least two opposing detection surfaces are defined by detection surfaces of said scintillation detectors (17).
Claim 14
Dependent Claim
42 words
An apparatus according to claim 6, characterized in that said three detecting portion pairs (13A, 13B, 13C) are arranged such that at least two opposing detection surfaces are defined by detection surfaces of said scintillation detectors (17) to form a square arrangement.
Claim 15
Dependent Claim
26 words
An apparatus according to claim 13 or 14, characterized in that said collimators of said three detecting portion pairs (13A, 13B, 13C) are parallel beam collimators.
Claim 16
Dependent Claim
26 words
An apparatus according to claim 15, characterized in that opposing planar images are reconstructed by using data detected by said detecting portion pairs (13A, 13B, 13C).
Claim 17
Dependent Claim
29 words
An apparatus according to claim 15, characterized in that a planar whole body scan image is reconstructed by using data detected by said detecting portion pairs (13A, 13B, 13C).
Claim 18
Dependent Claim
59 words
An apparatus according to claim 6, characterized in that an image is reconstructed by using data detected by said detecting portion pairs (13A, 13B, 13C) while performing at least one of operations of transferring the patient to a position near said detecting portion pairs (13A, 13B, 13C) by using said bed unit (20), and rotating said rotating ring (12).
Claim 19
Dependent Claim
29 words
An apparatus according to claim 6, characterized in that said moving mechanisms (15A, 15B, 15C) are lead screw mechanisms for linearly moving said detecting portion pairs (13A, 13B, 13C).
Claim 20
Dependent Claim
28 words
An apparatus according to claim 6, characterized in that said moving mechanisms (15A, 15B, 15C) are worm gear mechanisms for rotating said detecting portion pairs (13A, 13B, 13C).
Claim 21
Dependent Claim
28 words
An apparatus according to claim 6, characterized in that said three detecting portion pairs (13A, 13B, 13C) are arranged in a cover (30) provided for said gantry (11).
References Cited (Backward Citations)
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