US4246607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-Ray fluoroscopy device
Assignee: US Philips Corp
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Filing: 1979-03-08
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Granted: 1981-01-20
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Expires: 1999-03-08
Abstract
Abstract An X-ray fluoroscopy device comprises a television camera for locating the irradiation field. This camera forms an optical image of the object to be irradiated. This image can be displayed on a television monitor, together with an image of the irradiation field, so that the position of the irradiation field within the object can be directly observed.
Inventors
- 👤 Gerardus P. M. Vijverberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:19
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/42; A61B6/4208; A61B6/4225; A61B6/08; H; H05; H05G; H05G1/00; H05G1/08; H05G1/64
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
141 words
An X-ray fluoroscopy device for displaying an image of a part of an object comprising: an X-ray source disposed to irradiate an area of the object; an image intensifier disposed to intensify an image of X-rays from the source which pass through the object; a first television camera tube disposed to receive a first image from the output of the image intensifier; a first television monitor connected to display the first image from the first camera tube; and a second television camera disposed and connected to display an optical image of the object, which optical image includes the area of the object irradiated by the X-ray source; wherein the image intensifier includes an entrance detection screen and an exit screen, a transverse dimension of the entrance screen being not more than a few times the transverse dimension of the exit screen.
Claim 2
Dependent Claim
141 words
An X-ray fluoroscopy device for displaying an image of a part of an object comprising: an X-ray source disposed to irradiate an area of the object; an image intensifier disposed to intensify an image of X-rays from the source which pass through the object; a first television camera tube disposed to receive a first image from the output of the image intensifier; a first television monitor connected to display the first image from the first camera tube; and a second television camera disposed and connected to display an optical image of the object, which optical image includes the area of the object irradiated by the X-ray source; wherein the image intensifier includes an entrance detection screen and an exit screen, a transverse dimension of the entrance screen being not more than a few times the transverse dimension of the exit screen.
Claim 3
Dependent Claim
136 words
An X-ray fluoroscopy device for displaying an image of a part of an object comprising: an X-ray source disposed to irradiate an area of the object; an image intensifier disposed to intensify an image of X-rays from the source which pass through the object; a first television camera tube disposed to receive a first image from the output of the image intensifier; a first television monitor connected to display the first image from the first camera tube; and a second television camera disposed and connected to display an optical image of the object, which optical image includes the area of the object irradiated by the X-ray source; the output of the second television camera being connected to the first monitor so that the first image and the optical image are displayed on the same television monitor.
Claim 4
Dependent Claim
136 words
An X-ray fluoroscopy device for displaying an image of a part of an object comprising: an X-ray source disposed to irradiate an area of the object; an image intensifier disposed to intensify an image of X-rays from the source which pass through the object; a first television camera tube disposed to receive a first image from the output of the image intensifier; a first television monitor connected to display the first image from the first camera tube; and a second television camera disposed and connected to display an optical image of the object, which optical image includes the area of the object irradiated by the X-ray source; the output of the second television camera being connected to the first monitor so that the first image and the optical image are displayed on the same television monitor.
Claim 5
Dependent Claim
147 words
An X-ray fluoroscopy device for displaying an image of a part of an object comprising: an X-ray source disposed to irradiate an area of the object; an image intensifier disposed to intensify an image of X-rays from the source which pass through the object; a first television camera tube disposed to receive a first image from the output of the image intensifier; a first television monitor connected to display the first image from the first camera tube; a second television camera disposed and connected to display an optical image of the object, which optical image includes the area of the object irradiated by the X-ray source; and means for applying geometrical information from the first image and the output of the second television camera to the same television monitor so that geometric information from the first image is displayed on the same monitor as the optical image.
Claim 6
Dependent Claim
147 words
An X-ray fluoroscopy device for displaying an image of a part of an object comprising: an X-ray source disposed to irradiate an area of the object; an image intensifier disposed to intensify an image of X-rays from the source which pass through the object; a first television camera tube disposed to receive a first image from the output of the image intensifier; a first television monitor connected to display the first image from the first camera tube; a second television camera disposed and connected to display an optical image of the object, which optical image includes the area of the object irradiated by the X-ray source; and means for applying geometrical information from the first image and the output of the second television camera to the same television monitor so that geometric information from the first image is displayed on the same monitor as the optical image.
Claim 7
Dependent Claim
23 words
An X-ray fluoroscopy device as claimed in claim 3, wherein the second camera comprises a panoramic optical system having a permanently adjustable focus.
Claim 8
Dependent Claim
39 words
An X-ray fluoroscopy device as claimed in claim 4 wherein the second television camera includes adjusting means which measure the distance between the X-ray source and the object and adjust the focus of the second camera in response thereto.
Claim 9
Dependent Claim
47 words
An X-ray fluoroscopy device as claimed in claims 2, 3, 4, or 5 wherein the image intensifier comprises an entrance detection screen and an exit screen, a transverse dimension of the entrance screen being not more than a few times the transverse direction of the exit screen.
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) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |