US4907252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical examination system with generation of the internal patient image controlled by a surface image of the patient
Assignee: Siemens AG
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Filing: 1989-01-27
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Granted: 1990-03-06
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Expires: 2009-01-27
Abstract
Abstract A medical examination system includes components for generating an internal image of a patient, such as an x-ray image, and components for generating an image of the external surface of at least a portion of the patient. The signals obtained from the surface scan of the patient are used to control the positioning of other components, such as the patient support and/or the primary radiation diaphragm. The internal and surface images can be compared to achieve precise positioning of the patient and/or a setting of the primary radiation diaphragm to avoid blooming.
Inventors
- 👤 Horst Aichinger
- 👤 Hans-Juergen Gerlach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:28
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/08; A61B6/04; A61B6/0487; A61B8/00; A61B8/08; A61B8/0858
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
87 words
A medical examination system for examining a patient comprising: means for generating an internal image of said patient, said means including an adjustable component; means for scanning a surface of said patient and generating a surface image of said patient; a memory for storing said surface image; and means for comparing said surface image stored in said memory with a current internal image of said patient for generating a drive signal for said adjustable component based on the difference between said stored image and said current image.
Claim 2
Dependent Claim
87 words
A medical examination system for examining a patient comprising: means for generating an internal image of said patient, said means including an adjustable component; means for scanning a surface of said patient and generating a surface image of said patient; a memory for storing said surface image; and means for comparing said surface image stored in said memory with a current internal image of said patient for generating a drive signal for said adjustable component based on the difference between said stored image and said current image.
Claim 3
Dependent Claim
16 words
An examination system as claimed in claim 1 wherein said adjustable component is a patient support.
Claim 4
Dependent Claim
37 words
An examination system as claimed in claim 1 wherein said means for generating an internal image includes means for generating a radiation beam, and wherein said adjustable component is a primary radiation diaphragm disposed in said beam.
Claim 5
Dependent Claim
22 words
An examination system as claimed in claim 1 wherein said adjustable component is an ink printer for applying markings on said patient.
Claim 6
Dependent Claim
29 words
An examination system as claim in claim 1 wherein said means for generating an internal image of said is a means for generating an x-ray image of said patient.
Claim 7
Dependent Claim
30 words
An examination system as claimed in claim 1 wherein said means for scanning a surface of said patient and generating a surface image of said patient is a laser scanner.
Claim 8
Dependent Claim
133 words
A medical examination system for examining a patient comprising: means for generating an internal image of a patient, said means including an adjustable component; means for storing said internal image; means for comparing a stored internal image with a current internal image and for generating a first comparison result dependent upon the correlation of the stored and current internal images; means for scanning a surface of said patient and generating a surface image of said patient; means for storing said surface image of said patient; means for comparing a stored surface image with a current surface image and generating a second comparison result dependent upon the correlation between said stored and current surface images; and means for evaluating said first and second comparison results to generate a control signal for said adjustable component.
Claim 9
Dependent Claim
133 words
A medical examination system for examining a patient comprising: means for generating an internal image of a patient, said means including an adjustable component; means for storing said internal image; means for comparing a stored internal image with a current internal image and for generating a first comparison result dependent upon the correlation of the stored and current internal images; means for scanning a surface of said patient and generating a surface image of said patient; means for storing said surface image of said patient; means for comparing a stored surface image with a current surface image and generating a second comparison result dependent upon the correlation between said stored and current surface images; and means for evaluating said first and second comparison results to generate a control signal for said adjustable component.
Claim 10
Dependent Claim
17 words
A medical examination system as claimed in claim 7 wherein said adjustable component is a patient support.
Claim 11
Dependent Claim
38 words
A medical examination system as claimed in claim 7 wherein said means for generating an internal image includes means for generating an x-ray beam, and wherein said adjustable component is a primary radiation diaphragm disposed in said beam.
Claim 12
Dependent Claim
23 words
A medical examination system as claimed in claim 7 wherein said adjustable component is an ink printer for applying markings on said patient.
Claim 13
Dependent Claim
31 words
A medical examination system as claimed in claim 1 wherein said means for generating an internal image of said patient is a means for generating an x-ray image of said patient.
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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) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |