Patent US4229656A successfully refreshed from Google Patents.
US4229656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray orienting apparatus
Assignee: Pfizer Inc
•
Filing: 1978-10-31
•
Granted: 1980-10-21
•
Expires: 1998-10-31
Abstract
Abstract Precise orientation of an x-ray apparatus in which the x-ray tube and film cassette are mounted on opposite ends of a C-shaped arm is facilitated by a chair for the patient which is precisely movable along X and Y axes with the digital readout of adjusted positions. The angular rotation of the chair on its vertical support also has a digital readout. All of the readouts may be adjusted to zero at basic positions to facilitate adjustment. The angle of the C-arm is displayed by an inclinometer which also may be adjusted to zero at a basic position. The chair has an adjustable cradle for the head and the entire chair may be tilted to an acute angle to support unconscious or disabled patients without interfering supports. Orientation of the C-arm is also facilitated by a light source removably mounted over the film cassette, which designates the exit point of the x-ray on the patient.
Inventors
- 👤 Arthur Iversen
- 👤 John Magyar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:12
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/44; A61B6/4429; A61B6/4435; A61B6/4441; A61B6/08; A61B6/50; A61B6/501; A61B6/51
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
77 words
An x-ray orienting apparatus having an x-ray source and film cassette mounted on opposite ends of a C-shaped arm which has a central pivot axis vertically movable on a support post comprising a patient-supporting chair, movable means mounting the chair on a horizontal floor whereby the chair may be precisely oriented on the floor relative to the x-ray beam, and display means coordinated with movement of the chair on the floor whereby adjusted positions are precisely indicated.
Claim 2
Dependent Claim
77 words
An x-ray orienting apparatus having an x-ray source and film cassette mounted on opposite ends of a C-shaped arm which has a central pivot axis vertically movable on a support post comprising a patient-supporting chair, movable means mounting the chair on a horizontal floor whereby the chair may be precisely oriented on the floor relative to the x-ray beam, and display means coordinated with movement of the chair on the floor whereby adjusted positions are precisely indicated.
Claim 3
Dependent Claim
28 words
An x-ray orienting apparatus as set forth in claim 1, wherein the chair is mounted on guide means having freedom of motion in two directions and to rotate.
Claim 4
Dependent Claim
29 words
An x-ray orienting apparatus as set forth in claim 2, wherein potentiometer means is connected to the guide means, and the display means is connected to the potentiometer means.
Claim 5
Dependent Claim
38 words
An x-ray orienting apparatus as set forth in claim 1, wherein the chair has a seat, tilting means connecting the seat to the chair whereby the seat may be inclined to various acute angles for cradling a patient.
Claim 6
Dependent Claim
73 words
An x-ray orienting apparatus having an x-ray source and film cassette mounted on opposite ends of a C-shaped arm which has a central pivot axis vertically movable on a support post comprising a patient-supporting chair, an arcuate head support being adjustably connected to the chair, the head support being constructed and arranged to cradle the back of an average-sized head to leave the frontal area of the head unobstructed for passage of x-rays.
Claim 7
Dependent Claim
73 words
An x-ray orienting apparatus having an x-ray source and film cassette mounted on opposite ends of a C-shaped arm which has a central pivot axis vertically movable on a support post comprising a patient-supporting chair, an arcuate head support being adjustably connected to the chair, the head support being constructed and arranged to cradle the back of an average-sized head to leave the frontal area of the head unobstructed for passage of x-rays.
Claim 8
Dependent Claim
34 words
An x-ray orienting apparatus as set forth in claim 5, wherein the arcuate head support has smooth contours without any abrupt changes whereby relative distoration of x-rays passing through the head support is avoided.
Claim 9
Dependent Claim
20 words
An x-ray orienting apparatus as set forth in claim 6, wherein the arcuate head support has a substantially circular contour.
Claim 10
Dependent Claim
89 words
An x-ray orienting apparatus having an x-ray source and film cassette mounted on opposite ends of a C-shaped arm which has a central pivot axis vertically movable on a support post comprising a light projecting means for designating the exit point of the x-ray, movable means mounting the light projecting means optionally over the film cassette and remote from it whereby the light source designates the exit point of the central x-ray during positioning and is swung out of the path of x-ray while an exposure is being made.
Claim 11
Dependent Claim
89 words
An x-ray orienting apparatus having an x-ray source and film cassette mounted on opposite ends of a C-shaped arm which has a central pivot axis vertically movable on a support post comprising a light projecting means for designating the exit point of the x-ray, movable means mounting the light projecting means optionally over the film cassette and remote from it whereby the light source designates the exit point of the central x-ray during positioning and is swung out of the path of x-ray while an exposure is being made.
Claim 12
Dependent Claim
18 words
An x-ray orienting apparatus as set forth in claim 8, wherein the movable means comprises a swinging arm.
Claim 13
Dependent Claim
69 words
An x-ray orienting apparatus having an x-ray source and film cassette mounted on opposite ends of a C-shaped arm which has a central pivot axis vertically movable on a support post comprising an inclinometer mounted on the C-shaped arm, and movable indicia on the inclinometer whereby it may be set to the zero position when the C-arm is adjusted to a basic setting from which sequential positions are adjusted.
Claim 14
Dependent Claim
69 words
An x-ray orienting apparatus having an x-ray source and film cassette mounted on opposite ends of a C-shaped arm which has a central pivot axis vertically movable on a support post comprising an inclinometer mounted on the C-shaped arm, and movable indicia on the inclinometer whereby it may be set to the zero position when the C-arm is adjusted to a basic setting from which sequential positions are adjusted.
References Cited (Backward Citations)
US1877690A
Cited
US2264410A
Cited
US2532967A
Cited
US3045118A
Cited
US4088893A
Cited
US4132900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |