US1216633A - X-ray table. - Google Patents

Description

' Patented Feb.2o,1917.

' 2 sums-snes; I.

J. B. WANTVZ. x-RAY um. APPLICATION FILED JAN. I5 1915 n. .YL mmf Nm w w I M I|Iv||.| HUIHUIIHUHHHUIMIHUAUHHHUIMHHHUHHIII IIIIIIIWIIMHIIHIIIIlI |||IIII|II|IIIIIIIIIIvIIIII tively .only 'of the above JULIUS VB. WAN'IZ, OF CHICAGO, ILLINOIS, ASSIGNOR TO VI OF CHICAGO, ILLINOIS, A CORPORATION OF )TOR ELECTRIC COMPANY,

ILLINOIS.

:maar TABLE.

:Application iiled January 15, 1915.

To all -w/wm t may concern:

Be it known that I, JULIns B. WANTz, a citizen of the United States, residing at Chr cago, in the county of Cook and'Sta'teof. Illinois, haveinvented a new and useful Improvement in XRay Tables', of which Athe following is a specification.

My invention relates more particularly to X-ray tables adapted for either fluoroscopc or radiographic work; and my objects, generally stated, are' to provide a table comparalight in weight and economicalto manufacture; to provide a vtable so constructed that it may be readily conditioned for either luoroscopic or radiographic work, without the loss of` flexibility or range in either case, the radiographic work involving the taking of either .single rntgenograms or stereoscopic rntgenograms; to provide against the fogging of the sensitized plates byre ected rays;,and to protect t-heoper-V vator from the action of the rays.

Referring to the accompanying drawings@ l Figure 1 is a plan view' of a table constructed inA accordance with my invention. Fig. 2 -is a section taken at the line 2 on Fig. 1 and viewed in the direction of the arrow. Fig. 3 is a `View in side elevation of the up per portion of the table,the supports therefor being shown in dotted lines, and a portion of the tabletop being broken' away. Figyl is a` bottom plan view of the tabletopg'and Fig. 5, a Vface view of one of4 thev pair of simi ar 'ray-obstructing plates employed) In the drawings, I have illustratedmy invention asembodied in a table adapted for use in producing; either stereoscopic, or sin-` gle, rntgenograms, 'anduoroscopic work, as this .is desirable under'ordinary condi'f 'tions of practice, though as .hereinafter stated, certain featuresofmy"' ventioliiare 1 applicable to a table embodying certain* features. Y

The table-top shown isfformed of a con- 'tinuously `extending. section 6 of material transparent to X-rays, a desirable material being aluminum. -Secured to the undersides of the section' 6 ar'e siderails 7 containing on their ifn'ner surfaces upper and lower4 grooves, respectively, 8` 'and`9 at opposite) Specication of Letters Patent.

lugs 21 on the clips L intersection-of two l y Patented Feb.2o,1917. lSerial No. 2 .481.

sides of the table. The lower grooves 9 contain rails 10 forming tracks for a carriage 11 longitudinally re :iprocable'lengthwise of the '65 tableftop, the carriage 11 carrying rollers. 12 at lts opposite e( 10. he provisig eordance with common practice, especiallywhen it is desired that.

readily understood that the carriage may be y provided `of any desirable form and operated in any desirable manner. struction illustrated, the carria formed of material opaque to provided with a propelling spring 13 connected at its oppo of the table-top s represented at 14 carriage 11 carries `ed to engagewith carriage 11 is pr means for releasa X-ray plates to ls posures to prodi genograni, In thl the X-ray plates. tre to the upper surface are lield in place lI theseclips bei-ng ad; ustable toward and away from each other ior different sized plates and reversible for clamping a plate to the upper surfaceof .the carriage 11 when the nd tethe carrlage 11,-as

a lug 16 at one side adaptatrigger device 17. `The )vided with any suitable bly securing thereto. ltwo construction illustrated',

of the carriagel 11 and pla-te is in anenvelop', as represented at m, 85

of the lugs 19,

as by engagementuherewith y or. when the vplate is in a plateholder, as represented at 2B, :is-by engagement of thev The parts descriiLd .y in accordance with common practlce, that r when the carriage isin tlietrigger 1 .center of the plate t,

atrightv-angles to each' other on'nthelpper surface of the Vsectioi thatA the center-l l Vofv i for example, that in ongwhich the second exposure is' to be made, wrll, upon releasing ahe trigger 17, thus perinitting the spring 13 to operate, be caused .ges which engage the rails n of the carriage is in ac vstereoscopic rntgenograms be produced, and it will .be'A

. In the con# e 1,1 may be '65 -rays and is iite ends 'to a rigid portion and 15, respectively. The 7l) e used for successive ex- .ce a stereoscopic rntadapted to be-applied the' reversible clips 18, 230

'are so proportioned, 90

the position illusl l trated n- Fi ."4, nanely, a positibn'wherein inter] :wks with theiug 16,113@ namely the one to-'gbep first exposed, will r1 gister withthepioihtpff ines 22 andas arranged l l `sof nie tableitqpwnd* he Succeeding Plats, isi-10 the plate-holder 2O and"l to-register with the point of intersectionv of i,

the' lines 22 and 23 or in other'words, will be carried to the same positionfor exposure, as that occupied by the first plate at the time of making the first exposure.- y '1 The table-top'may be supported in .fany suitable manner, thesupport shown in the drawing being shown in part only, at 24, but as the articular formof supportforthe table-top fin'msl no part of the resent 1nvention, a detailed description t ereof appears'to be unnecessary. Cooperating. 'with the section 6 of the table-top are slides represented at 25, these slides, which in .the

illustrated embodiment of my invention are of similar size andshape and provided with handles 26,'extending at their opposite sides into the channelsS and longitudinally adjustable therein independently of each other to extend in mutual abutting relation at their inner ends or invarying spaced relation, these slides being formed of material opaque to X-ra s, it being preferred' 'that each be made o' sheet-iron elther alone, or with a covering of lead, the sheet-iron being preferably about one-eighth Vof an inch thick. When the table is to be used for the making of stereoscopic radiograms,-the op era-tor will adjust the slides 25 lengthwise of the table-top to present between their opposingends a space of such width that an X-ray plate centered relative to the intersection of the lines 22 and 23 may be exposed to the X-rays emitted fromA an Xe-ray tube, not shown, which would be located above the table. With the slides 25 in the adjusted position referredto, theslide at the right hand side of Fig. l'will serve to prevent exposure of the plate 'at the righthand end of the carrier (Fig. 4), namely, the one which is to receive the second exposure; and when the carriage 11 has been shifted to the left in Fig. 4 to position the plate at the right-hand end of the carrier 11 for reeeivin the second exposure,`the slide 25 at the le t-hand end of Fi 1 Will serve to prevent exposure to the -rays, of the first plate-Which was exposed.

The slides 25 being adjustable toward and away from each other, a space of any desired Width may be provided at their `adjacent ends and thus any desired width of section transparent to X-rays may be provided in the table-top. This is of advantage, especially where plateslof different sizes are employed as the slides 25v may be adjusted to prevent the passing of' X-rays along opposite sides of the X-ray plate.- which'reduces danger of fogging'of the X-ray plates by. refiected X-rays and. danger-to the feet ofthe operator from subjection to the rays. In this operator, than would be possible with a table Way even better protection isgiven to the plate before and afterexposure and to the provided with immovable opaque plates.

after exposure.

. iiexibility.-

4the top of the table beneath the patient.

When the table is' used in this manner, the slides 25 would be adjusted on the table-top into endwise abutting relation. This feature of the table-is very desirable as the slides 25 by reason of their relative stiffness and their position in the table-top serve as a stilfening medium for the latter. It is well understood that the thicker' the section 6 of the tabletop, the less transparent to X-rays it becomes, and furthermore, the more expensive. The-table-top should, however, Where the X-ray plate is placed on its upper surface and the ciently stiff to prevent it from sagging to such an extent that the X-ray plate under the weight of the atient Will not break. By providing the sli es 25 the section 6 of the table-top may be made relatively thin as the slides 25 will, when adjusted to the innermost position, render it sufficiently stifl' to prevent objectionable sagging.

In using the table for fluoroscopic Work, 'the slides 25 would be withdrawn from the table-'top which would render the entire tabletop trans arent to X-rays emitted from an X-ray' tu e, which in practice would he located, for this class of Work, beneath the table-top. The operator would therefore be enabled to make a fiuoroscopic examination of the entire body of the patient, it being 4understood that 'the carriage l1 would be removed'inmaking such an examination.

In the type of table in which the opaque shields on the table are statiorfary, the fluoroscopic field was equal to about one-third the total area of the table-top, one of'the other thirds being rendered opaque by one sheet for protecting the X-ray plate 1n the right end of the 'carrier 11 before exposure and the remaining third being rendered opaque by the .other shield for protecting the X-ray' plate in the left-hand end of the carrier 11 By making these shields movable in accordance with my invention, better protection is given the X-ray plates before and after exposure when the table is way a table constructed in accordance with the preferred embodiment of my invention With'a topas described, can be used either as an X-,ray table with a stereoscopic plateshifter, as `u. radiographic table for use in taking single rntgenograms, -or as a fluoroscopic table,

While I have illustrated-aud described my patient lies upon this plate, be suftl- 1 without any loss of range or 115 used for the taking of stereoscopic rntgenoimprovement as embodied in a table adapted for both liuoroscopieand radiographie Work, it will be readily understood that it may be embodied in a table designed for radiographic work alone.

at I claim as new and desire to secure by Letters Patent is- In a combined lluoroseopic and radioa graphie X-ray table, the combination of a 10 `table-top of material transparent to X-rays, and members of material opaqueto 'X-rays' `relatively movable toward each other for radiographicwork and relatively movable away from eachother to enlarge the transpal-int lield of'the table-top, for luorosoopic wor a 2. In a'table for radiographic Work and ur'oscopic Work, the combination of a table-top of material transparent to X-rays, 2o 'and plates of material opaque to X-rays movable to a position on the table in which they oppose portions only of thetable-top and render a comparatively small area of said top transparent for radiographie Work, `2`5 and ,to a position in Which a relatively large area of the table-top is rendered transparent for lu'oro'seopic Work. 7' 3. Ina table for radiographie Work and luoroscopie` Work, the combination of a $0 table-top Aof material transparent to X-rays, and plates of material opaque to X-rays and to a position in Which a relatively large' area of the table-top is rendered transparent 'for fluoroscopic Work. I p

5. In a table for radiographie'work and fluoroscopio Work, the combination of a table-top of material transparent to X-rays,v

movable on the' table longitudinally of the latter to a position in `Which they oppose portions only of the table-top and render a comparatively small area 'of said top trans! tion in which a relatively large area of the ytabletop is rendered transparent for liuo-v roscopic Work.

`(i. In a table-top for radiographie Work and luorosoopic work; the eon'ibination of a" table-top of material. transparent to Xsraysy movable to a position in which they oppose p 0 fluoroscopic Work, the combination of a.

table-top 'transparent for radiographic Work,

yand members of material opaque to X-rays parent for radiographie'Woi-k, and toa posi- -iiierosoopie Worin and plates of naterial opaque to X-rays movable on said table longitudinally thereof to a positionin which they oppose portions only of the tabli top and render a comparatively small area of said table-top transparent for radiogriphic Work and removable from the table t) free said table-top of obstruction to X-iays for liuoroscopie Work.

7. In a table for radiographie Work and lluoroscopie Woilr, the combination of a table-top transp trent to X-rays, members of material opaxue to Xerays movable on the table to a pos itionin which they oppose portions only of the table-top and render -a comparatively sn all area of said top transparent for radiog ."aphic Work, and to a position in' which a relatively large area of the table-top 1s rende fed transparentffor iuoro- Y scoplo Work, and shiftable X-ray-platecarrying means teneath said opaque members for positionii g the Xsray plates in suocession opposite s iid relatively small trans? parent area of talle-top.

In a combined fluoroscopio and radiographie X-ray talle, the `eombinationqoi a tabletop having 1he section thereof Whieh supports the patimt .formed of material transparent to X-i ays, members of material opaque to X-rays relatively movable toward each other for rad iographic Work and relatively 4movable awry from each other to enlarge the transparent field ofthe table-top for fluoroscopic Wtrk, and shiftable X-ray,

plate-carrying mea ns beneath saidy opaque members for positioningr Xday plates in succession oppositey said relatively small transparent area of table-top.

9; In a table for radiographic work and luoroscopio Work, the combination of a table-top of material transparent to X-rays, plates of material o] aque'to X-rays movable on the table to a position in which they oppose portionsonly c f the tabletop and ren der `a comparatively small area `of the table- -top transparent for radiographie Work and removable from the table to free said tabletop of obstruction 'to X-rays for lluoroscopic Work, and shiftabla X-rayplatecarrying means beneath 'said opaque members for positioning X-ray plates in succession opposite said relatively nnall transparent area of table-top. y

. 10. In a table for radiographie Work and luoroseopie work, 1 he combination y"ol" table-top of material transparent to Xsrays, members of materii ll opaque to Xrays mounted on the table beneath said table-top and movable to a pos: tion in which they oppose portions only of the table-top and render a comparatively s: nall area of said tabletop transparent for r: idiographio work, and to a position in which a relatively large area of the table-top is/rer der ed transparent for i a nd shijftable X-raypiateearrying ineens beneath said opaque i' members for positioning X-ray plates in y successionv opposite said relatively ysmall transparent area of table-top.

11.'In a table for radiographic Work and flu'oroscop'ie work, the combination of a I `eession opposite said relatively small transtable-top of material transparent to 'X-raysf members of material opaque to X-rays movable on the table longitudinally of the latter to a position in which they oppose portions only of the table-top and render a comparatively small area of said top transparent for radiographic work, and to a position in which a comparatively large area of the table-top is rendered transparent for -fluoroscopic work, and yshiftable X-ray-1 plate-carrying means beneath said opaque members for positioning X-ray plates in sucparent `area of table-top.

12. In a table for radiographic and fluoroscopic work, the combination of a table-top of material transparent to X-rays, platesiof material opaque to X-rays movable,on said table longitudinally thereof to a position in which they oppose portions only of the table- .i small transparent area of table-top.

13. In a radiographie table, the combination of a table-top adapted to support a patient, relatively movable members of material opaque to -X-rays adapted to be adjusted to render a comparatively small area of the table-top transparent to X-rays for radiographic work and a comparatively large area transparent for luoroscopic Work, and means for supporting an X-ray plate below said table-top.

14. In a radiographic tableT the combination of a table-top, means for supporting an X-ray plate beneath the upper portion of said table-top, and means above the position occupied by the X-ray plate for rendering the portion of said table-top above said X- 'ray plate transparent to X-rays, said lastmentioned means being adjustable to render aeomparatively small area of thet'able-top transparent to X-rays for radiographic work, and a comparatively large area transparent for luoroscopic Work.

l5. In a radiographic X-ray table, the combination of a table-top having a section transparent to X-rays, a plurality of slides of material opaque to X-rays adjustable to render a comparatively small area of the table-top transparent opposite the ends of said slides for radiographic work, and a t -amparatively large area transparent for iiu-` oroscopic Work, and means for supporting Lampes an X-ray plate below, and in registration with, the space presented between the ends of said slides.

16:.'111 a radiographie X-ray table, the combination of a table-top with a section thereof transparent to X-rays, relatively movable members opaque to X-rays adapted to be adjusted tol render a comparatively small area of the table-top transparent to X-rays for radiographic Work and a comparatively large area transparent. for fluoroscopie work, land a shiftable X-ray-plate- `holding member below said table-top, one

of said relatively movable members serving to prevent X-rays from striking one of said X-ray plates on said shiftable member..

17. In av radiographic X-ray table, the combination of a table-top with its top section formed of material transparent to X- rays, a pair of relatively movable members opaquev to X-rays disposed beneath, and in,

registration with, said trans arent section of the table-top, and a shifta le plate-holding member below said relatively adjustable members adapted to support a pairof plates,

said relatively adjustable members being` adapted to be adjustedgto render a comparatively small area of the table-top transparent to X-rays for vradiographic Workand a comparatively large area transparent for fluoroscopic work and adapted to be so' ositioned relative to the X-ray plates on sai shiftable member that `when said shiftable member is in one position for exposing one of its plates, one of said relatively movable members will prevent the other of said X-ray plates from being exposed to thev X-rays, and vwhen said shiftable member is shifted to expose theother X-ray plate thereon, the other of said relatively movable members will prevent the X-ray .plate first exposed from being subjected to the X-rays.

18. In a combined fluoroscopic and radiographic X-ray table, the combination of a table-top having .a section thereof which supports the patient formed of material transparent to X-rays, and means on said table-top adjustable to different positions thereon and serving, when in one position,

.to stiffen said transparent section against u ndue sagging under tbe weight of the patlent and removable from such position to graphic X-ray 'table-top having a position in 'which they will be out of the pathof the .L -rays used for fluoroscopic Work.

20. A combined luoroscopic and radiographie X-ray table provided with inwardly .opening channels and having a top-section for supportingthe patient formed of Inaterial transparent to X-rays, and slides of relatively stitt' material opaque to X-rays adjustably mounted in said channels.

21. In acombined luoroscopic and radiotable, the combination of a table-top with its upper section upon which the patient rests formed of material transparent to X-rays', a pair of slides of material opaque to X-rays on said table-top longitudinallt7 adjustable thereon and adapted to be moved into and out of registration with said transparent section and serving, when adjusted to innermost position, to stiiliensaid transparent section against sagreiney under the weight of the patient, and a shiftahle member below said slides adapted to carry a pair ot' X-ray plates, t'or the lmrpose set forth.

In a combined lluoroscopic and radiographic X-ray table, the eombilmtion of a a section thereof which supports the patient formed of material transparent to X-rays, and means on said tabletop opaque to X-rays, adjustable to different positions thereon and serving; when in lone position, to stiffen said transparent section against undue sagging under the weight of the patient and removable from such position to a position in which they will be out of the path of the X-rays when the table is being' used for lluoroseopie work. y

23. In a combined Huoroscopie and radiographic X-ray table, the combination of a table-top having a section thereon Which supports the patient formed of material Uoptea ol this patent may be obtained for when the table is 'being transparent to X rays, and slides opaque to X-rays on said tlble-top adjustable to dif- `ferent positions thereon and serving, when in one position, io stiffen said transparent sect-ion against undue sagging under the weight of the pazient and removable-from such position to a position in which they will be out of the path of the X-rays when the table is beingr used for lluoroscopic work.

24. In a combir ed lluoroseopic and radiographic X-ray ta ile, the combination of a table-top formed of material transparent to X-rays, members nf material opaque to X- rays'mounted on the table to be relatively movable lengthwise of the table-top toward and away from earh other to vary the transparent Held ot tle table-top and serving, when adjusted t( a certain position, to titten said transparent section `against sagging under the we ght ot' the' patient, and a shiftable member below said first-named nwmbers adapted oV carry a paiil of X-ray` plates. t'or the pm pose set forth.

25, In an X-ray lable. the combination of a table-top ol ma e'rial (ransliiarent Vto X- rays, and memberu of material opaque to X-rays extending practically eo-extensive with said transparent section and eachmovable along saidtable-top independently of the other.

26. In an X-ray 'vable, a table-top of mat rays, adjustable me of the top of the-,tal eluding members o; rays, relatively mo1 parent Held of the table-top, means for said firsl -named means.

'ULIUS B. WANTZ. v

In presence of- JAMES THELE N, GEO. M. MoFiDRIEs.

the combination of arial transparent to X- ans for rendering partsv le-opaque to X-.rays, inmaterial opaque` to X- 'ablelto vary the translve cents eachyby addressing the Coinmissionerof Patents, Washington, D. C.

and guiding

Images