Патент USA US2106150код для вставки
Jan. 18, 1938. 2,106,150 E. E. LONGFELLOW ‘ SURGICAL HYPEREXTENSION FRAME Fixed Aug. 19, 1935. INVENTOR. ‘ ‘I 4' ATTORNEY. iaateiited Jan. 18>, 1938 2,106,150 SURGICAL HYPEREX'K‘ENSEGN FRAME Earl E. Longfellow, Warsaw, 1nd, assignor to Harry Herschel Lciter, Warsaw, Ind. Application August 19, 1935, Se 'ial No. 36,321 5 Claims. (01. 128-584) invention relates to improvements in sur gical hypei'extension frames and the object there to afford adjustable support for a person hsving an injured spine by which is iaciIitated 5 a iustrncnt of fractures or dislocations of "the 'eparatory to applying a plaster cast. An— object is to provi ie an appliance for grad ually producing hyperezrtcnsion to the torso of " nt preparatory to adjustment thereof . d eucasing it in‘ plaster cast so that the spine will he sustained with proper curvature during convaloscence iollowing adjustment. Other ob " and advantages of the invention will appear in, t 15 following description. . An illustrative embodiment of the invention is shown in the accompanying drawing, in which. Fig. l is perspective View of the appliance; 2 is a, iragmentary elevation of one of the standards and corresponding ink-bar; and Fig. 3 is a fragmentary side elevation of a sup porting side and standard thereon. illu ‘rative ainbodiment of the invention 1 sts of a basal formed of a. horizontal bar we ill "I. at one end a 'tical standard 2 provided at its top with a cross head 3. The other end - the ‘car has an upturned portion constituting a. post 0: in which is disposed a threaded adjust . id rod 5 The base i is superimposed upon feet is consisting of cross bars which are secured thereto. Upon the base is mounted a slide 1 having an upright standard 8 through which the adjusting rod 5 extends, there being stops 9 secured on C13 bi said rod upon the opposite sides of the stand ard 3 arranged to permit turning movement of the rod in the standard and prevent axial move ment of the rod relative thereto, so that upon turning the adjusting red the standard 8 and its 40 slide ‘l are moved upon the base toward or from the opposite standard 2 accordingly. The slide 7 has lugs ill between which ismounted a roller i! upon a pintle i2 the ends of which are se cured in said lugs. The roller has contact with 45 the base i and thereby the slide is retained in proper operating position on said base. The standard 8 has head i3 similar to the of the standard 2, and has a horizontal shaft at its upper end a. cross cross head 3 on the top each of said cross-heads Hi, the ends of which ex tend through upwardly projecting lugs l5 located at the ends of said cross heads. Upon each shaft M is pivotally mounted a link a bar it having downwardly projecting lugs ll‘ I ‘through which the corresponding shalt ill ea‘:v tends.‘ Each link bar has made therein a hori~ zontal slot it‘. that through one side there~ of and closed at the opposite side. The link bars are disposed upon their respective cross heads so oi that the openings of their slots l8 are faced to ward each other. Upon each shaft M is dis posed a spring 59 the terminals of which respec tively bear against the corresponding cross head Zi-~-i3 and link bar mounted thereon so that said link bars are moved yieldingly toward each other to an extent limited by a jaw 26 on one of the lugs ll’ that has contact with a stop iii in the corresponding cross head. A pair of hyperextension flexible bridge bars 15 22, ‘preferably of spring i etal, are disposed with their opposite ends inserted in the link bars and are by manipulation conveniently spaced apart to expose therebetwecn the spinal column of a patient while posed supine upon said bridge bars 20 and permit the surgeon to closely examine and conveniently adjust displaced vertebra. The link-bars constitute connections for removably securing the respective ends of the bridge bars to the standards 2 and 8 and are preferably ar 25 r vnged to have tilting movement upon their lon~ gitudinal axes in the upper ends of said stand ards which constitute their supports. It is de sirable that the link-bars are of such character as to’ cause the bridge bars when positioned there 30 in to bow upwardlywhen the supports for the link-bars‘ are moved toward each other, and to readily free the bridge bars from the connections when the supports are moved away from each 35 other. Operation In operation the appliance is placed upon a floor or bench (not shown) and, a blanket (not shown) is laid over the bridge bars and the pa 40 tient is positioned supine thereon with the spine disposed lengthwise parallel with the bridge bars and in suspension in the space therebetween. The lengths of the bridge bars preferably are such as to afford support for that portion of the torso of the patient which extends from the clavicle to the pelvic regions. The adjusting rod 55 is then turned by manipulating its handle 55', causing movement of the slide 7 and its stand“ ard 8 toward the stationary standard 2 on the ( base. In this operation the bridge bars 22 are compressed lengthwise, and the link bars l3 thereupon accommodatingly tilt upwardly away from each other upon their respective shafts iii. Due to the tilting movement of the link bars l6, 2,106,150 as the standards are moved toward each other, the bridge bars are ?exed upwardly more or less low dependent upon the travel of the adjusting rod 5, and in the manner hyperextension is gradually applied to the patient without material discom fort. If desired, the bridge bars may be initially en— cased with gauze and/or a lubricant, after which, a plaster cast is- applied so- as to encompass the 10 torso of the patient and the bridge bars. After the plaster cast has set, the slide is retracted on the base so as to permit the ends of the bridge bars to be released from the link bars. The pa tient, together with the plaster cast and the 15 bridge bars are removed from the appliance, and subsequently, if so desired, the bridge bars may be withdrawn by sliding them endwise from the plaster cast. I claim:— 20 1. A surgical hyperextension frame consisting of a base having feet to prevent lateral tilting thereof, and provided at one end with a vertical standard and at its opposite end with a post, said standard having a cross head at its top, a slide on said base between said standard and post pro vided with means to retain the slide in operating position on said base and having also an upright standard provided with a cross head at its top, link bars pivotally mounted respectively in said cross heads, said link bars having corresponding horizontal slots that are open through the oppos ing faces of said link bars and closed at the op posite sides thereof, means to limit tilting move ment of said link bars in their respective cross heads toward each other, springs acting to move said link bars toward each other, flexible bridge bars the opposite ends of which are removably positioned in the slots of the corresponding link bars and spaced apart from each other, and an 40 adjusting rod threaded in said post operatively associated with the standard on said slide for moving same toward the standard on said base thereby to cause upward ?exure of, said bridge bars. 2. In a surgical hyperextension frame, a base member provided at one end with a standard and at its opposite end with a post, a slide on said base between said standard and post having an upright standard, said standards each having a cross head at its top, link bars pivotally mounted in said cross heads and having corresponding horizontal slots made in their opposing faces, means to limit tilting movement of said link bars, ?exible bridge bars the opposite ends of which are removably positioned in the slots of the cor responding link bars, spaced apart from each other, and an adjusting rod threaded in said post operatively associated with said slide to cause relative movement of said standards toward each other and thereby cause upward ?exure of said bridge bars. 3. In a surgical hyperextension frame, a base member, a slide member on said base member 10 provided with means for adjustably moving same relative to the base member, link bars respec tively having pivotally supported relation with said base and slide members located opposite with respect to each other, the opposing faces of which link bars are slotted, and ?exible bridge bars the opposite ends of which are removably positioned in the slots of the corresponding link bars and spaced apart from each other, said linkbars and bridge bars being so operatively associated with said members that upon movement of said slide member in one direction said bridge bars are up wardly ?exed. 4. In a surgical hyperextension frame, two link bars each of which has a pivotal support therefor, said bars being disposed oppositely and in parallel relation with each other, the opposing faces of said bars having corresponding slots therein, means for adjustably moving the sup ports for said link bars relatively toward and from each other, and bridge bars the opposite ends of which are removably positioned in the slots of the corresponding link bars and spaced apart from each other, said bridge bars, link bars and the adjustable means being operatively asso 30 ciated so that when said supports are moved to ward each other the bridge bars are ?exed up wardly and upon movement of said supports away from each other said bridge bars are dis connected from said link-bars. 40 5. An appliance of the class described consist ing of a base having standards thereon arranged for adjustable movement toward and from each other, means for adjusting said standards, tilting members on the upper ends of said standards, and bridge bars connected with and suspended be tween said members and adapted to be bowed up wardly upon relative movement of said members toward each other and to become freed from con nection with said members upon relative move 50 ment of said members from each other. EARL E. LONGFELLOW.