US 1748784 A
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Description (OCR text may contain errors)
,V170 `ing the patient either 'in a sitting position or ,Y 20 dropped .downwardlylat the' knee portion so 140, invention reference is had to the accompany- Patented Feb. 25,1931@ .STATES 'Femm-WCE:
inno. MIE'RLEmoE DENVERcoLoRAno, Assienoa To inn B. MIERLEY, oF DENVER,
- 1; r ooLoRAno i rHYsIcnn AND vSURGICAL APPARATUS 111111111111011 111611 -rtruary 13,1928. seri/alive. 253,915.
:Thisinvention relates to convertible, mediv cal and surgical table or chair for usembyzphy-- sicians and surgeons, for oflice examinations and operations. 'Theprincipal object of the Y 5 inventiony is thevprovisionof an examination 4'chairnwhich can be quickly converted into an operating table while the patient is in place thereon,l and which can beused asv a wheeled .i
kchair or stretcher for convenientlytransportwhile prone.
Another objectl of the'invention to projvide an adjustable operating table iin which any operating or examining position, from a 15 vsittin-gposture with footfrest to a Trendelenburg posture, can be quickly and easily obtained while the patient ,is in position thereon. 'f Another object of theinvention -is to provide afleg rest structure which can be quickly:k
Vthat the patientsybody frfornfthe knees .up-`
wardly can lie horizontally or in the Trendel` enburg posture with the" feedldependin'g.
' Still another object is to provide afoot l t 25 "rest whichwill automatically comel into position to provide a V'stool vwhen the table is adjusted to the chairfposition. Y 5 1 A still further object; is to provide adjustable armrests and hand holds for thek conven- 30 ience and relief of ythe-patientwhich can be y"brought into position 0r completely removed l` from thezoneof operations without disturbingvthe patient. i
, Other'objects and advantages reside in the i ,35. detail construction of the' invention, which is designed for simplicity, economy, and efficiency. Thesen will v becomey more apparent 4from the following description.. l v In the following ,detailedk description ofthe i Y151 Fig. 1 is a side ,elevationof my improved A ken line other lused as van operating table.
apparatus showing insolid'line the horizontal or general operating position and inbropositionsto which the-table is convertible. y v v Fig. 2 is a plan-viewthereof.r Y V- Fig. 3 is a detail perspectiveview of midleg-rest hinge and latch. Fig. 4 is a detailperspective view of the heel stirrupsv employed in combination with thelapparatus for elevated leg postures.
w Fig. 5 is n adetail longitudinalsection through..V the back braceclamp.- '-The, invention comprises a supporting frame' formed Yfroirrbentfleg members-10 which also form the top members of the-60 frame.; The leg .membersflO are supported `from the base members 1-1 byv vertical struts 12.'v The `frame iscarried on rubber tired castor wheels: 13 for easy portability.: The
`.castor wheels 13 are preferablyof one ofthe 65 Vcommon typesat present onthe market providedwith brakes so that they may berrigidly heldin position while Lthe device is being Aback rest'lt is hinged at 151 bers lOandy supported in any desired position by a hinged back brace rod 16. The back I brace rod 16 is locked in position by meansof a clampingflever` 17, shown in detailin Fig. 5. The clampingmember comprises'atubeg75 18 which extends transversely between the members 10; Withinthe tube `is a slidable` l rod 19A into the end of which a threaded stud 2() is 'screwed by means of a- Yclamping lever 17. `The back brace -rod 16 passes entirely-80 'e through thel tube 18 and through 4a hole in the rodf19. Thus by tightening the lever 17, the
rod 18 is pulled against the brace rod, firmly 'locking it in place.V The back rest can be lowf ered Vbelow the horizontal position', to obtain.\ 35
the Trendelenburgpo'sture or if necessary, to flower lthe patients head fordrainage or resuscitation purposes.
A seat portion 21'isfixedly secured between the horizontal portions of the members 190V i i to the mem- .7,70k
Piyoted to the forward extremities of the members 10 as shown at 22, is a leg rest portion comprising a thigh section 23 to which is hinged adjacent the patients knees, a calf section 24 carrying a foot rest 25 hinged thereto at 26. The entire leg section is caused to move in unison with the back rest 14 by means of connecting links 27 passing under each side of the seat 21. The links 27 extend between rear brackets 28 carried by the back rest 14 and front brackets 29 secured to the thigh portion 23 oftheV legirest. It is desired to call attention to the fact'that the front brackets 29 are shorter than therearV brackets 28, so as to cause the back rest to swing through a larger arc than the legirest.4 By this construction, the'leg rest will swing j downwardly as the back rest swings upwardly. ticiently far to form a chair the foot rests will contact with a projecting plate 30 Vfixed between the members 11. Vrlhe member'30 will force the foot rest forwardly about its hinge 26 into a natural position to receive the feet of the patient seated in the chair.
Normally the calf section 24 is in alignment with the thigh section 23. 1t can,V however, be dropped by means of `a special hinge construction shown indetail in Fig.- 3 and comprising two diagonally` placed hinge4 plates 31 at each side of the chair. .Two of the hinge platesbeing carried by the thigh Asection and two by the calf section..v The hinge plates 31 atea'ch 'side are pivoted together by hinge kpins 32 and are locked in position by means of Vlatch bolts 33 which slide within a hollow tube v34 and are forced outwardly through the two pivoted together hinge plates byV means of a spring 35.
Hand holds 35 are provided at each side ofthe seat portionV 21.". vThese handfholds comprise inverted U shaped bars, the extremities of which pass through clamps 37 on the struts 12. By this arrangement the hand holds can be raised to any desired height and locked in place or, by loosening' the clamp 37, they can bey dropped entirely below the plane of the table.
Fory genito-urinary operations and the like requiring the legs of the patient to be raised and spread apart, two stirrups38 are provided, illustrated in detail in Fig. 4.
The stirrups are carried on square studs 39 which may be locked in. any desired position within a head 40 on a T shaped support by means of set screw 41. The T shaped support is provided with a square shank 42 which slides within the extremities of a square tubing 43 that extends between the bracket plates 29. The Shanks may be witlidrawn to provide any desired separation of the patients legs. rllhe .pressure ofthe tients heel upon the stirrups tends to twist the square shank 42 within `the square tubing 43 so' as to automatically clamp the Shanks When the back rest has beenraised suf? in any desired extended position. By lifting the stirrups so as to relievev the twisting weight, they can be easily moved inwardly or outwardly. An additional lock is provided by means of aset screw 44 to prevent the shanks from falling from the tubing. The
Vstirrups can be adjusted forwardly or backwardly within the heads 40 to raise the patients legs to anydesired elevation.
The back rest 14, seat portion 21, andthe leg portion, mayV if desiredbe covered ywith any suitablefcushions asis usual in chairs of this character.
l/Vhilea specific form vofrthe limprovenient has been described and illustrated herein, it is desired to be understood that the same may be varied,within the scope of the appended claims, without departing from the spirit ofthe invention.
Having thus describedthe invention, what 1y claim*v and desire secured byxLetters'Ratent is i f f l1. A combined surgical chair and table comprising a supportingrfrai'neya seat portion rigidly carried in said supporting" frame; abackV rest hinged adjacent ,one extremityfof saidseat portion; a leg rest hinged` adj acent' the other extremity of said'. seat portion; ybrackets projecting from said back said backrest; means for securingsaid back Y rest inv any *desiredf position,V said'jlegrest comprising a thigh` section, a calf; and aioo vhingefbetween ysaid `calf section. .and said thigh section so that it may be. dropped to a Vsubstantially vertical vposition while said nthigh sectionismaintained horizontal andinl alignment withsaidseatportion.
j. 2. Means for providing stirrupsforasurgical chair comprisingasquaretube 'extend-k ing transversely across said chair, its extremities being open; a T shaped member; a
square shankon said Alatter member adapted? td be iitted into said square tube; a head on said latter member, said-head being hollow;
vand a stirrup A having a projecting shank adapted to be received in saidhead.l
Means for providing stirrupslfoi a surgical chair comprising a tube extending transversely across said chair,its extremities being open; a-T shaped-member; a
shank onl said ylatter-member adapted to be fitted into saidtube; a head on said latter member, saidhead being hollow; a stirrup having a projecting shank adapted to be received in said head; means for lockingsaid latter shank `in any desiredpositioninsaid14V head.
.. 4. A combined surgical chair and V,operating table comprising: a seat portion; 'an adjustable back rest hinged to said seatportion; athigh--rest hingedto said'seat portionE and arranged to swingeither at an upward angie thereto or depend dire'otlydownward- .1y therefrom; means for locking said thigh yrest in any desired position; a calfv rest hinged to said thigh rest and means for allowing said calfrest 'to swing to a Verticall depending position regardless of the position of said thigh rest; and means fo-rflocking said vcalf rest in'alignment with said thigh rest. r
Y In testimony whereof, I aix my signature.
' IRA C. MIERLEY.l