USRE10761E - Surgical chair - Google Patents

Description

4 Sheets-Sheet 1 F. E YOUNG. SURGICAL CHAIR.

1% 10,761. Reissued Aug. 24,1886:

WITNESSES y w- MM 4 Sheets-Sheet 2.

F. E. YOUNG.

SURGIGAL 0mm.

No.10, 761. ReissuedAugLM; 1886.

@w/h QM: B y Affurney UNITED STATES PATENT OFFICE.

FRANKLIN E. YOUNG, on C OHIO:

j SURGICAL CHAIR.

SPECIFICATION firming partof Reissued Letters Patent No. 10,761, dated izuguat, 24, 1886 OriginalNo. 289,743, dated Decenzher 4,3183. Application..a1ssnc and November 6, 1885. Serial No. 182,373.

useful improvements in that class of chairs 1 the metallic strapsd d on the'sides of the legrest'E by a pivot-joint, d. The straps d d j are also pivoted to the chair-frame Aat their upper ends inside of each arm-rest A, and theyare provided with two slots, d"-and 11''.

used for surgical purposes that will admit of easy adjustment to the various positions nec-" essary for examinations or special operations upon the patient, all of which will be hereinafter more particularly described, and pointed out in the claims. I

In the accompanying drawings, forming part of this specification, there are four sheets, in which Figure 1 is a perspective view of the chair in one position as in ordidinary use for sitting. Fig. 2 represents the l chair extended and in ahorizontal position,

the seat elevated to a level with the arms. Figs. 3 and 4 are detailsof the clamp for securing the stirrup in any position. v Fig. 5 represents details of the device {or clamping and holding the back at any angle. Figs. 6 and 7 are detail views of the devices for looking and unlocking the seat. Fig. 8 is' a perspective view of the chair in another position, with the back horizontal, the seat lowered, and the leg-rest dropped from the position. shown inFig. 2. Fig. 9 is an underneath view of the back and seat detached from the frame, showing the'apparatus for coupling and uncoupling the back and seat. Fig. 10 is a transverse section of Fig. 9 on line'z z.

A represents theframe of the chair,'whi c h can be made of any: suitablematerialand "substantial and weight enough to'stand firmly-5 upon the floor. .T 6 feet may Y structed as to edmit of being fseclired to the floor. The-arm'sj A'a're'permanently fastenedto the upper endsofithestandarda or legs or the chair, and are with upholstery-to form comfortable cushions on top.

Y B is the back of 'the chairgwhich is prop erlyframed and upholstered. .It'is attached to the hind legs, a a, by pivots '0, about 'six inches from the lower-end, which fit into angular sockets c, forming part of the back legs or standards, a a, as seen injFig. 1", Sheetl.

. b b, which serve as hinges.-

be, so

he back is also connected to the seatD at the lower end by links or narrow plates of metal The linkbon one side (seen in Fig. 1) is straight. Link'b (seen 'in Figs. 2, 7, and 8) is continued and curved so that it acts as a strap by means of its con- 1 nection with the back and seat, and is alsoa lever, 0,-having a'handle, O, as" will be hereinafier explained,

The seat D is supported at the front upon that it may be turned, as shown in 8. At

the back end of the seat'D the straps b and b are also pivoted to it, as they are to the lower end of the back B. These stra'p's' fbf bhare. united by a cross-bagG, as seen in Figs. 6; and 7, which barG has on it a sliding Hook, 9,

that engages with a catch-platen, secured to the'bottomof seat D.

The sliding hook or locking-catch g is'op erated by the spiral spring'g' and the'knob'g on, the outer end, and which is heldfonthe bar G by the pins'h'hjn the slots 1: It when it is. desired. The sliding ho'ok g fastens the side links or plates, bb, allowing motiononl at the pivot b' at the lower end of the back ;until. the'hook is freed from the lock-plate ;H,when theseat D and the leg-restE will resume theif position,as seen in Fig. 8, while back B, havingonit a ball, i, and.- thumb-. 'screwj, to adjust and-support the head-rest I' at any elevation. 5

ii'are curved clamps provided at their ends with cushioned pads z'" i, and which can secured by clamp-screws j j, provided with corrugated .or serrated surfaces, as illustrated in Fig.4.v These clamps are used to hold the at e, so

i'th'e B will remain in a horizontal position Tor any inclinatiouwhich may be required. 7 "Thefhe'aii-rest I is shown in detail in Fig. 2. TY-id is" socket-iron fastened to the rear of u the ends of iron rods pivoted under the arms head firmly in operations of a delicate nature A to the front legs or standards in the heads of bolts k, passing through the clamp K, which has on the interior faces serrated or corrugated surfaces, as shown in Fig. 4, and which are secured together by clamp-screws K, and the stirrup-rod is fastened by a clamp-screw, K, Fig. 3. When the stirrups are not in use,

they are turned under the arm-rests, as seen in Fig. 1. In Fig. 5 is shown the device for clamping and holding the bar N, which sustains the back Bat any angle with the seat D and the leg-rest E when they are locked to gether.

L is a block secured to'the hind leg of the chair-frame A, in which block is a horizontal dovetail mortise, Z, and a vertical rectangular mortise, Z, having dentatious or corrugations upon one side of the mortise. A dovetailed plug, M, having astem, m, and knob m, is fitted to mortise l, and a dentated rod, N, of rectangular cross-section is fitted to the mortise 1, having one side dentated or corrugated to correspond with the side of mortise Z. By

' pulling out the knob m the rod N can be setable, or chair-seat, and, as it is inconvenient and embarrassing to lift the patient into proper position, it becomes desirable to avoid that, and these difficulties are entirely overcome by this device.

When a patient is placed in a horizontal position in the chair, as it is represented in Fig. 2, the feet are to be placed in the stirrups K K. The knob m is then to be shaved in with the left hand, and with the right hand on the handle 0', attached to the crank part 0 of the lever-strap b, let down the seat I) and leg-rest E, as seen in Fig. 8. This leaves the patient in the proper position, with the hips resting on the lower end of the back B,wi'thout being lifted forward. The seat D is then convenient to place on it a basin or instruments. Thefoot-board F is then turned back out of the way, as in Fig. 8, and the operator sits down in front of his work, and in this way the chair is adapted to the patient instead of adapting the patient to the chair, and it also gives the most favorable position with the greatest facility and the least embarrassment and exposure.

To get the patient out of the last-described position, bring up the seat D and leg-rest E, by means of the handle 0' and lever O of strap b, until the released hook g catches the plate H; place the feet upon the leg-rest E. Then the patient can easily come to the sitting posture and the back B will follow, and the chair -be again as in Fig. 1.

To attain either the right or left lateral po- 4 sitions, place the patient in the horizontal position, as heretofore described and as illustrated in Fig. 2, turn the patient on the side with the hip on the arm of the chair. Then drop the leg-rest E out of the way. This is done by pushing it until the sustaining-bolts drop out of the slots d",when by its own weight it will assume the vertical position, asin broken lines in Fig. 2 and solid lines in the other figures.

When the chair is to be folded for transportation, the back B is lifted out of the bearings c o and turned down, as shown in dotted lines in Fig. 8. The seat D is let down, and leg-rest E, with foot-board F, are-all as represented in that fign re, and the stirrups turned under the arm-rests. The chair is then prepared to be placed in a box or case, as may be'desired.

Having-described my invention, what I dosire to secure by Letters Patent is 1-,The combination, with the supportingframe, ofthe back pivoted thereto, a seat pivoted at its front end to the frame, substantially as described, links pivoted to the seat and back, and means, substantially as set forth, for connecting the links rigidly withrthe back end of the seat and disconnecting them, as and for the purposes set forth. I

2. The combination ofthe supporti ng-frame, the back' B, pivoted to the frame, the seat D, pivoted at its front to the frame, substantially as described, having the lock-plate H, the side straps, b b, pivoted to the back and seat, as set forth, the bar G, secured to the straps b b and locking-catch g, and the handle 0 0, attached to the side strap, b, substantially as and for the purpose described.

v 3. The combination of the pivoted back B and links I) b with the suspended seat D and links (I d, whereby the seat may be elevated In testimony that I claim theabove I have hereunto subscribed my name in the presence of two witnesses.

FRANKLIN E. YOUNG.

Witness cs: v

FRED. W. BOND,

HARRY FREASE.

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