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Патент USA US2406148

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Aug, 20, 1946.
J,‘ “NY
2,406,148.
ARRANGEMENT FOR THE DISTANT VIEWIN‘G‘OF .RADIOSCOPIC IMAGES
Filed July 17, 1943
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Aug. 20, 1946.
Jgsé, ‘75/79
INVENTOR
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A'ITORNEY. -
20, 1946.
J, JANY
-
‘
2,406,148
ARRANGEMENT'FOR THE DI'S‘I‘ANT VIEWING OF RADIOSCOPIC IMAGES
Filed July ]_.7, 1943
'
3 Sheets-Sheet 3
INVENTOR
'
BY
‘£- ' ATTORNEY.
‘
Patented Aug. 20, 1946
o .
UNITED STATES Parent orgies ";
OF RADIOSCOPIC IMAGES
José J any, Sao Paulo, Brazil
Application July 17, 1943, Serial No. 495,203
In Brazil June 14, 1943
2 Claims.
-
(Cl. 250—77)
1
2
The present invention relates to an arrange
ment for the distant viewing of radioscopic
transmitting rays coming from the mirrorqbox
images.
_
'
to the viewing equipment.
*
One object of the invention is to provide an
arrangement for the distant viewing of radioscopic images in which the operator is protected
by a lead shielded screen against the action of
the direct or secondary X-rays.
Another object of the invention is to provide
a device for the distant viewing of radioscopic
images in which the observer may be stationed
in an undarkened room so that the time period
otherwise necessary for the adaptation of the
eyes of the observer to the dark room“ is eliminated, and the observation of the position of the
patient and all his movements is facilitated.
Still another object of the invention is to provide an arrangement for the distant viewing of
,radioscopic images, obtained on a ?uorescent
screen, from a patient placed in contact with a
radiologic table regardless of whether such table
6
10
15
20
‘
1
‘Referring now to the drawings, and first to
Figs. 1 to 4, I is an X-ray tube mounted on the
rear of the radiologic table 2, which latter is piv
oted in a frame 2a and in Figs. 1 to 4 is adjusted
to a vertical position. A ?uorescent screen 3 is
mounted at a distance in front and parallel to
the radiologic table 2 and connected with the lat
ter by lateral brackets to. A telescopic frame 1
extends forwardly from the ?uorescent screen 3
at substantially right angles to the latter and
Supports an cXpa’nding bellows t3- A mirror bOX
5 is mounted on the front end .of the bellows 4
and contains two lenses 6d disposed at right .
angles to one another and a mirror to disposed
at an angle of 45° to the ‘Optical aXiS 0f the dc
vice so as to de?ect light rays entering the box 5
through One Of the 1611865 5a at all angle of 99°,
whereupon said light rays are emitted through
the Second 18115 6a- v
' "
and ?uorescent screen are placed in a horizontal
The entire X-I‘aY equipment, including the
position or in a vertical position_
I
radiologic table, the X-ray tube, the ?uorescent
A still further object of the invention is to
screen, ‘the telescope frame, thebenows and the
‘provide an arrangement which permits of modi- 25 mirror bOX may be tilted ‘in the frame 2a and
fying the size of the ?eld of radioscopic vision
adjusted either to a position in which the radio
on the ?uorescent screen in accordance with the
logic table and ?uorescent screen extend in ver
magnitude of the desired enlargement, depend-
tit-‘1&1 planes and the telescope ‘frame and 1061
ing upon the organ of the patient to be observed so lows project horizon/tally (see Figs. 1 ‘and 2), 01'
and diagnosed.
to a position in which the radiologic table and
These and other objects, which will appear
?uorescent screen are disposed in horizontal
more clearly as the speci?cation proceeds, are
planes and the telescope frame and bellows pro
accomplished according to the present invention
ject vertically upwardly from the ?uorescent
by the arrangement and combination of elescreen (see Fig- 5)
ments set forth in the following detailed descrip- 35 The telescope frame and bellows may be ex
tion, defined in the appended claims and illustended to various lengths, the least extended po
tratively exempli?ed by the accompanying
sition being shown in full lines in Figs. 2 and 5,
drawings in which,
each of which shows two further extended posi
Fig. 1 is an end View of the arrangement ac- 40 tions in broken lines.
cording to the invention With the radiologic table
8 is an upright lead sheet covered partition wall
and ?uorescent screen in o vertical position.
disposed in a plane parallel to the optical axis of
Figs. 2 and 3 are separate side views respecthe X-ray equipment and provided with a hori
tively 0f the X—1‘ay equipment including the
zontal slot l3, the longitudinal edges of which
radiologic table, X-ray tube, the ?uorescent 4c are equidistantly spaced from the horizontal
screen and a mirror box connected to the ?uorescent screen by means of a bellows; and of the
plane containing the optical axis of the Y-ray
apparatus when the latter assumes the position
protective Wall in which part of the viewing
in which its optical axis extends horizontal (see
equipment is slidably supported.
Figs. 1, 2 and 3). A carriage 9 consisting subFig- 4 is a Vertical aXial Section Of the mirror 50 stantially of a lead sheet covered protective plate
box showing its internal construction.
is mounted by means of wheels I! slidably along
Fig. 5 is an end view similar to that of Fig. 1,
the slot l3 on rails 52 extending along the edges
but showing the radiologic table and ?uorescent
of the slot is. A telescope 29 projects through
screen in horizontal position and also including
the carriage plate d with its optical axis disposed
a series of mirrors and a pick-up device for 55 at right angles to the horizontal optical axis of
4
3
the X-ray apparatus and in the same horizontal
plane as the latter.
In order‘to operate the arrangement with'the
radiologic table in the vertical position (Figs. 1
to 3)’, the bellows 4 is extended in accordance
' with thesize gofvthe ?eld which the operator de=
sires to observe, The carriage 9 is then moved ‘
along the rail ii in the screening-wall 8 to bring
the optical axis of the telescope I!) in exact align
‘lens Met with the optical axis of the beam re
?ected from the proper mirror Hi; ?nally the tel~
escope I0 is focused and the radioscopic observa
‘tion may thus proceed in the same manner as
described above from the outside of the wall 8
through the telescope 1! d.
I claim:
M
"
1;.An arrangement for the" distant viewing of
radioscopic images comprising in combination '
“with an X-ray apparatus including an X-ray
which the de?ected rays emerge. The telescope > " tube. a radiological table, a ?uorescent screen and
i8 is properly focused and the radioscopie'irnage ‘7" H a bellows having one end thereof attached to said
I ment with that lens Saof the mirror box 5 from _‘
produced by the X-ray equipment onithei?uo-r
rescent screen 3 may be observed without any”
danger of the observer being exposed to the det-J
rimental effects of primary orrsecondary- X-rays.
Fig. 5 shows certain additional elements to'be
used when the X-I‘ay apparatus is positioned ‘to
have the radiologic table 2 and ?uorescent screen
?uorescent screen and being extensible along the
opticalaxis of said X-ray apparatus, the latter
being capable of assuming a position in which its
optical ‘axis is disposed in a horizontal'plane, an
upright lead sheet covered partition wall disposed
in a- plane parallel to the optical axis of said
X-ray apparatus and provided with a horizontal
' 3 disposed in horizontal planes. A vertical rod 20 slot the longitudinal edges of which areequidis
IT depends from the roof of the laboratory and
tantly spaced iromsaid horizontal plane contain
carries a number of equidistantly spaced brackets
ing‘ the optical axis of said X~ray apparatusga
l5, each of which supports an‘ adjustable ,;mirror
lead sheet protected carriage slidable lengthwise "
l6? The mirrors it are so arranged that; at_dif-'
of said slot, a telescope supported by Said carriage
ferent' extensions of the bellows d, ‘the rays 25 with its optical axis disposedin said' horizontal
emerging from the mirror box 5 through ‘one
plane at right angles to said partitionwall, and
of the lenses So will strike one orthe other of
the mirror surfaces J6, ‘Each‘mirror l6'may be
an'optical device mounted at, the other end of
said bellows to divertthe light‘ rays passing from
set at *various inclined positions to‘ deflect the
rays striking its'surfaces in a downward direc 30 said luminous screen along said optical axisof
said X-ray apparatus through said bellows’ at
tion. An optical pick-up device I 4 containing a
right angles towards said partition wall.
lens Ma and‘an inclined mirror 14b is, Vin/this
_'2. An arrangement, as claimed in claim 1, in
case,’ attached to the-objective end of~the tele
which said X-ray apparatus is adjustable to a
scope to receive the light rays re?ected by the
mirror;l6 and to deflect such rays'into the tele 35 Position ingwhich its optical axis extends verti
cally, a series of mirrors disposed to receive light
scope 10. ‘In the position shown in Fig. [5,-the
rays emitted from said optical device. inseveral
arrangement is operated asfollows: Theiextenw
predetermined extended positions of said bellows
sion of the bellows is properly’ determined and
along said vertically disposed axis, respectively,
?xed: The pick-up I4 is attached to the tele
scope. The vmirrors 16 are adjusted to the proper 40 said mirrors being adjustable‘to variousinclined
positions, and means attachable to saidtelescope
vangles 'to de?ect the light rays emerging from
for picking up an image re?ected from any of said
the mirror box 5 downwardly ill-the directionrlof
the .7 pick-up. I 4.‘ .7 The supporting carriage i9‘is
mirrors and diverting itinto said telescope,
moved along‘ the rails 12 to thefproper position.
The pick-up I4 is turned to align-the axis of its 45
' Jose JANY. '
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