US1795042A - Obthodiageaphy - Google Patents

Description

L. M. ROSE ORTHODIAGRAPHY March 3, 1931.

Filed May 31, 1928 ddilw A TToRA E'y Patented Mar. 3, 1931 PATENT OFFICE LOUIS M. ROSE, OF SAN JOSE, CALIFORNIA ORTHODIAGRAIHY Application filed May 31, 1928. Serial No. 281,859.

This invention relates particularly to a means for outlining a viscus, such as the heart, through the utilization of parallel roentgenographic rays.

It is one object of the invention to provide a means of the character indicated wherein the exact size of the organ to be delineated may be marked on a suitable surface positioned directly in front of the patient and between the patient and the fluoroscopic screen whereby accurate results may be quickly obtained. 7

It is another object of the invention to provide a simple means for supporting a suitable material, such as paper, directly in front of the patient and adjustable both in a plane parallel with the table and also at right angles thereto.

It is still another object of the invention to provide a simple and positively'acting marking device readily adjustable relative to the surface to be marked upon when positioned as above set forth, and movable as an integral part of the X-ray tube carriage,

and adjustable relative to the tube itself.

It is also an object of the invention to provide a device of the character indicated that will be economical to manufacture, simple in form and construction, and highly efficient so in its practical application. a

' In the drawing:

Figure 1 is a perspective illustration showing the preferred embodiment of my invention in operative position relative to a fluorj85 oscopic screen, table and X-ray tube.

Figure 2 is a section on 22, Figure 1.

Figure 3 is a perspective illustration of a portion of the marker supporting mechanism.

Figure 4 is a detail section on 44 of Figl ure 1,

Figure '5 is a diagrammatic perspective illustration showing the mounting of the carriage for the fluoroscopic screen and the X-rayrtube on the table, parts broken away. Referring now more particularly to the drawing, I show at 1 a portion of a combination X-ray table mounted in the usual manner upon standards as 2 and fitted with a carriage 3. The carriage 3 carries the tube indicated in dotted lines at 4 and may bemoved at will in any direction in a plane parallel with the table 1 through the medium of parts ea. On arm 5 and extending forwardly of the table 1 is mounted a fluoroscopic screen 6, the arm and screen, of II course, moving as an integral part of the carriage. Inasmuch as this mechanism is' common in the art its structural details are not shown.

In effecting my invention I first provide a'bar 7 fitted with a hook 8 on one end adapted to engage the flange 9 on one edge of the table 1, and a clam 10 on the other end adapted to engage the ange 11 on the other edgeof the table. Mounted on bar 7 are outwardly directed and spaced arms 12 provided with grooves 13 on their under sides and slotted as at 1 1. Slidably mounted in grooves 13 and adjustably secured therein by bolts 15 are arms 16 extending downward ly in parallel relation to table 1 and supporting a frame 17 by means of bolts 17 a.

The frame 17 is slotted at the top and bottom as at 20 so that a sheet of paper as 21 may be drawn therethrough from a roller 22 mounted on brackets 23 on frame 17. A sheet of glass as 19 is fitted in the frame 17 just back of the paper 21 to form a support there for during the marking process. By means of this construction the paper may be renewed as desired and it must be readily adjusted as to distance from table 1 and also longitudinally thereof. p a

The marking portion of the device is constructed in the following manner. At 24 are provided a pair of brackets having sockets 25 formed in their lower ends to seat on shoulders as 25a on arm 5, the brackets being held rigidly in position on the arm by means of bolts26a.

Horizontally mounted upon the upper ends of the brackets 24 is a square tube 26, this tube being also vertically positioned relative to the plane of table 1. Adjustably mounted in the tube 26 is a bar27, and adjustably 5 mounted in the forward end of bar 27 is a tubular element 28, this element lying at right angles to the axis of the bar 27 and parallel with the supporting bar 7 on table 1. The tube 28 is normally held in a fixed position relative to the bar 27, and in this tube is revolubly mounted a rod 29. A spring is inserted between the tube and rod as shown and is so connected to them as to urge the rod into engagement with stop 31. A tripping arm 32 is mounted on the rod 29 as shown.

A finger is shown at 33 passing through the free end of rod 29 at right angles to, its

longitudinal axis and normally lying in a plane parallel with the plane of table 1. This finger is adjusted longitudinally ofits axis" by means of a set screw. 34 in the end ofrod table and at right angles to the plane of the table, a revoluble rod mounted on the arm and extending over the record sheet, a marker arm ad ustably mounted 1n the rod, a

marking element mounted'in the marker arm,

and spaced a distance from the rod, resilient means fornormally holding the marking element in spaced relation to the sheet, and means for rotating the rod against the ten sion of the resilient means.

-,LOUIS M, ROSE.

- 29. In one end of the finger 33 is mounted 1 a pencil as 35 with its point positioned directly over thepaper 21.

In preparing the device for use the point of the pencil 35 is adjusted to coincide with the axis ofthe rays from the X-ray tube, Since the tube, pencil and screen are all mounted on the one carriage 3 their relative positions will not be altered during the marking proc- The patient havingheen placed in the position desired relative to the table-1, the frame 17 is adjusted over the part to be outlined and the point ofthe pencil adjusted to i A a positionspaced a little from the surface of the paper2lin the said itrame.

the carriage 3 is now moved tobring the point of thepencil on the edge of the shadow depicting the area tobe outlined. Atouch on'the tripping arm will nowthrow the'pencil forwardly intocontact with the paper to make a mark'at that point. In :this manner the pencil is moved along the edge of the V shadow and operated at spaced'intervals to record its path of travel on the surface of the paper .21. I A partial outlineof the human bodyisshownat 36,and a dotted outline of the :heart' asmade by. the mechanism herein I I described is shown at 37.

It is to .be understood, o fcourse,.that while I have herein shown but one specific embodiment of the invention, changes in form, construction, and method of assembly-and operation may be made within the.scope of the appendedclaims,

I claim: 1

1. The-combination with an X-ray tube andfluoroscopic screen carriage operatively mountedrelative'to an Xsray table, ofa rec- 0rd sheet mounted. in spaced relation to the face of the table, a revoluble arm :mounted on thercarriage and'extending over the record sheet, a marker mounted on the arm and overlying the record sheet, means for normallv holding the 'marker in spaced relation to the sheet, and means for rotating the arm against-saidho'lding means. 1 v

2; The combination with an X-ray table an X-ray tube and fluoroscopic screen carriage operatively mounted relative to the table, of

arecord sheet mounted in spaced relation to the face o f the table,'an extensible arm mounted on the carriage at one side 0f the

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