US3934140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray diagnostic apparatus in particular for examining the injured
Assignee: DUTERTRE
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Filing: 1974-10-09
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Granted: 1976-01-20
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Expires: 1994-10-09
Abstract
Abstract An X-ray diagnostic apparatus intended in particular for the examination of the injured comprising: an X-ray tube-carrying arm member and a film-handling device which are respectively carried by two coaxial shafts, the common axis of which passes through the plane of the film. A horizontal patient-supporting plate is carried by means of an arrangement which enables the plate to be moved longitudinally, transversely and vertically and to be swung about a first vertical shaft, this arrangement being connected to the framework which supports the coaxial shafts in such a way as to enable it to swing about a second vertical shaft the axis of which intersects at the center of the exposure field with both the common axis and the central X-ray beam.
Inventors
- 👤 Christian Dutertre
- 👤 Jean Dauge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:30
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
251 words
An X-ray diagnostic apparatus particularly intended for examining injured patients, comprising: an X-ray source for emitting an X-ray beam; a film-handling device for receiving said X-ray beam traversing said patient, for delivering a visible image thereof and including within a lightproof housing a mechanism for displacing the film it contains in substantially one direction to and from the exposure field irradiated by said X-ray beam; an arm member for carrying said X-ray source at one end thereof and for locating said source at a predetermined distance from said exposure field; a pair of coaxial, horizontal, independently rotatable shafts having a common horizontal axis, the first one of which having the other end of said arm member secured thereto and the second one supporting said film handling device in such a way that said common axis is located in the plane of the film in the exposure field and that said direction of film displacement is parallel to said common axis; a framework including a mechanism for driving said coaxial shaft pair and for supporting it through a cylindrical opening thereof by means of bearings; a first supporting plate fixed to the ground for carrying said framework thereon; and means for horizontally supporting a patient mounted on a second, movable supporting plate pivotable about a first vertical shaft secured to said first supporting plate, said first vertical shaft having an axis intersecting, at the center of said exposure field, with both said common axis and the central ray of said X-ray beam.
Claim 2
Dependent Claim
251 words
An X-ray diagnostic apparatus particularly intended for examining injured patients, comprising: an X-ray source for emitting an X-ray beam; a film-handling device for receiving said X-ray beam traversing said patient, for delivering a visible image thereof and including within a lightproof housing a mechanism for displacing the film it contains in substantially one direction to and from the exposure field irradiated by said X-ray beam; an arm member for carrying said X-ray source at one end thereof and for locating said source at a predetermined distance from said exposure field; a pair of coaxial, horizontal, independently rotatable shafts having a common horizontal axis, the first one of which having the other end of said arm member secured thereto and the second one supporting said film handling device in such a way that said common axis is located in the plane of the film in the exposure field and that said direction of film displacement is parallel to said common axis; a framework including a mechanism for driving said coaxial shaft pair and for supporting it through a cylindrical opening thereof by means of bearings; a first supporting plate fixed to the ground for carrying said framework thereon; and means for horizontally supporting a patient mounted on a second, movable supporting plate pivotable about a first vertical shaft secured to said first supporting plate, said first vertical shaft having an axis intersecting, at the center of said exposure field, with both said common axis and the central ray of said X-ray beam.
Claim 3
Dependent Claim
73 words
Apparatus as claimed in claim 1, wherein said driving mechanism includes at least one first motor for driving said first horizontal shaft independently in rotation about said common axis and means for coupling said first horizontal shaft to said second one for simultaneously rotating both, when said X-ray source carrying arm member is so orientated that the central ray of said X-ray beam is perpendicular to the film plane in the exposure field.
Claim 4
Dependent Claim
128 words
Apparatus as claimed in claim 1, wherein said patient-supporting means comprises a pedestal mounted on said movable second supporting plate at a distance, from said first vertical shafts, greater than half the length of said film-handling device housing; a jack mounted in said pedestal including a vertically movable rod; a support-block secured to the upper end of said rod; an elongated rectangular support plate movably mounted on said block for displacements perpendicular to a straight line connecting together the respective axes of said first vertical shaft and of said rod; a second vertical shaft mounted on said movable elongated plate; a turnable plate pivotably mounted on said second vertical shaft and a horizontal patient-supporting plate mounted on said turnable by means of slide bearings for longitudinal displacements thereof.
Claim 5
Dependent Claim
58 words
Apparatus as claimed in claim 2, wherein said framework further includes means for movably supporting both said horizontal coaxial shafts and said driving mechanism thereof including said first motor, made up from a carriage mounted for vertical displacements along a plurality of slideways integral with said framework, said carriage displacements being controlled by means of a second motor.
Claim 6
Dependent Claim
75 words
Apparatus as claimed in claim 4, wherein said first motor mounted on said carriage drives a first gear meshing with a second gear secured to said second horizontal shaft; said second gear supporting on its body a third motor coupled by means of gears to said first horizontal shaft, whereby said first motor simultaneously drives both of said horizontal coaxial shafts and said third motor drives the first horizontal shaft relatively to the second one.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |