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Publication numberUS1837037 A
Publication typeGrant
Publication dateDec 15, 1931
Filing dateFeb 12, 1927
Priority dateFeb 12, 1927
Publication numberUS 1837037 A, US 1837037A, US-A-1837037, US1837037 A, US1837037A
InventorsGillberg Gustaf S
Original AssigneeElectro Motive Instr Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Therapeutic traction apparatus
US 1837037 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Dec. 15, 1931. Q s. GILLBERG 1,837,037

THERAPEUTIC TRACTION APPARATUS 4 sneetssheet 1 Filed Feb, l2, 1927 IN VEN TOR.

Dc. 15, 1931. G. s. GILLBERG 1,837,037

THERAPEUTI TRACTION APPARATUS Filed Feb. l2, 1927 4 Sheets-shew; 2



DSC. 15,1931. Y G s; GlLLBERG 1,837,037

THERAPEUTIC TRACTION APPFATUS Filed Feb. 12, 1927 i 4 sheets-sheet 5 A TTORNE Y.

Dec. 15, 1931. v '6, s- GILLBERG M 1,837,037


My invention relates to a therapeutic traction apparatus shown in the accompanying drawings and more particularly described in the following specificationV and claims. v v

The primary object of this machine vis yto restore full mobility in any joint ofa pa-` tients arms, legs, spine or other parts of the body. f

It is well understood that contraction of l the muscles, ligaments and tendons varising from nerve irritat-ion or vother causes often result in impaired mobility of the joints, and on account of this fundamentalcause,fmany mechanical devices have been constructed to produce a relaxation of the joints,-for example traction apparatus of a type including an adjustable therapeutic couch or operating table, on which the patient lies while undergoing treatment, fitted with suitable harness or other devices adapted to engage the arms, legs or other parts of the body which in operation serve to produce elongation or relaxation of the joints. Apparatus of this character is necessarily. costly however, and frequently not adapted for `the particular requirements of the patient or physician, and on account of the size of the apparatus cannot be conveniently storaged when not in use.

One of the objects therefore of the present inventionis to provide a device in which the usual operating table or couch is eliminated, the apparatus being portable and adjustable to accommodate itself for use in .connection which it may be employed,-and when not in use may be stored so as to occupy a minimum space. g 1 A A further .object of the invention is to provide means whereby muscular relaxation may be obtained-through the trac-tive operation of yieldable resilient means rhythmically opplied,-embodyinga plurality of graduated spring sca1es,-the'tension of which is regulated in accordance with the resistance of the muscles,-the draw or pull being thus constantly determined and if desired as steadfastly maintained at the predetermined load asl the muscles relax under the pulling action of the machine.

A further `object of the invention is to provide the apparatus with suitable harness by which its operating parts may be coupled to either an arm, leg, or other part of the body and that it may be placed either at the head or side of the operating table or bed most convenient for use without the necessity of disturbing the patient or the articles of furniture or equipment in the room to make the apparatus available. p

With the foregoing and other objects in View which will appear as the description proceeds, the invention further resides in the combination and arrangement of parts'and in the details of construction hereinafter described and claimed, it being understood that changes maybe made inthe precise embodiment ofthe invention herein disclosed without departing from the spirit of the same.

In the drawings accompanying this specification:

Figure l is a side elevation of one portionl of the apparatus located adjacent the end of an operating table-a fragment of which is shown*showing itV connected by a suitable harness with the patients leg. i

Figure 2 is ahorizontalsectional and plan view of the apparatus shown in the preceding figures taken on or about line 22 of Figure l-the operating table being removed.

Figure 3 is an end elevation of the apparatus as viewed from the direction indicated by the arrows-see line 3 3 of Figure l.

Figure 4 is a vertical fragmentary sectional elevation of the opposite side of the apparatus taken on or about line .4l- 4 of Figure l.

Figure 5 is a detail view of one of the telescopic spring scales employed.

Figure 6 is a longitudinal sectional view through the scale, taken on or about line 6-6 of Figure 5.

Figure 7 is an elevation of the opposing or so-called stationary member of the apparatus lused in conjunction with that shown in the preceding figures on the opposite side of the operating table or cot.

Figure 8 is a diagrammatic view indicating in a fragmentary way the'respective co-operating parts of the apparatus located at opposite ends of a surgical table and respectively connectedwith the patient by suitable straps or harness. Y

Figure 9 is a similar diagrammatic view showing the apparatus located at the sides of an operating table and with a suitable harness connection between vthe apparatus and the body and forearm of the patient.

kReferring now to the letters of reference placed upon the drawings:

A represents a rectangular frame provided at each corner with fittings A1 from which rise standards A2 telescoping within the downwardly eXtending sleeves B1, of a rectangular frame B, which when adjusted are secured by clamping screws b1. Directly be neath the horizontal members BfL `of the frame B and secured to the slidable fittings Bb by bolts Z), is a platform C, to which is bolted an electric motor D,-its armature shaft eX- tending into a gear housing E where it is fitted with a pinion F in mesh with a train of gears G to provide a suitable speed reduction forthe-shaft Gra journalled in the housing. f

On the end of the shaft Gra is a crank arm H to which is pivoted a link H1 connected with a rocking lever I, pivoted at I1 to a hanger depending from the platform C. The rocking lever at its upper end is connected with a fitting I2, at the outer end of a graduated tube J telescoping in a sleeve K. Secured to the forward end of the sleeve K is a. fitting K1 to which one end of a spring L is attached, the other end of the spring being connected to the fitting I2, on the end of the telescoping tube J. The fitting K1 is pivoted on a bolt K2 to a bracket M which is in turn engaged at M1 to a platform N mounted upon the fittings Bb slidable on the members Ba of the rectangular frame B.

Projecting from the fitting K1 is a hook Ka supporting a -transverse bar P to which is secured suitable harness Q, for engagement with the leg or other part of the patients body. R denotes an operating table or cot on which the patient rests, and projecting from the depending sleeves BlL of the frame B are adjustable thrust arms S. fitted at their outer ends with a pad S1, adapted to bear against the end of the table or cot. T denotes a screw shaft supported in a suitable bearing provided in the frame and extending through a tapped block N1 attached to the underside of the slidable platform N, is fitted with a hand wheel Ta, by which the shaft may be rotated to adjust the platform longitudinally in relation to the table R and to regulate the tension of the spring L lodged within the telescoping tubes J and K, whereby any predetermined load or pull desired may be applied to the patient and the tension adjusted to maintain the load as the muscles relax. U indicates a fitting secured to the floor overlapping the flange or footing of the frame, to secure the device against displacement.

Located at the opposite side or end of the operating table is the stationary portion of the apparatus shown in Figure 7, consisting of a floor frame V from which rises a standard Vu telescoping in the downwardly depending tube W to which it is secured by a clamping screw w when properly adjusted. The tube Wat its upper end has a fitting Wa supporting a screw shaft X carrying at its outer end the sleeve Y of a spring balance scale similar to the device shown in Figures 5 and 6.. Y is a graduated tube telescoping in the sleeve Yv and at the end of the tube Ya is a fitting Yb provided with a hook Yc supporting a transverse bar YI to which suitable harness Q-see Figures 8 and Q-fitted to the patient are connected. Wl is a bracket hook projecting from the sleeve WV to receive the hook Wc supporting a second transverse bar Vd with which a harness (not shown) may be connected with the patients head or body.

As indicated in connection with the tractive cooperating portion of this apparatus, shown in Figure l, a suitable fitting U attached to the floor may overlap the flanges of the floor frame to secure this portion of the apparatus from displacement, as previously described.

Z is arhand wheel mounted on the shaft X by turning which thertension of the spring housed inthe telescoping sleeve Y may be regulated.

Having indicated the several parts of the apparatus by reference letters, the construction and operation of the device will be readily understood.

Dependentupon the part of t-he body undergoing treatment, the patient after being placed on a suitable table or cot with the t1-active and stationary parts of the machine in opposition and connected by suitable harness with the patients body as in the manner indicated, the motor is started actuating the rockino' lever I, which through the action of the telescoping spring scales and connection through the harness with the patients body, exerts a rhythmical pulling action and as the muscles relax, the load may be maintained or graduallyincreased by the manual adjustment of the screw shaft T untii the full anatomical limit of the joints under treatment is secured.

For the purpose of this description it may be assumed that a stiff knee jolnt is under treatment. A harness with sulicient padding is first attached from the groin and hip of the affected leg to the second transverse bar WV of the machine. Another harness is attached to the ankle,-in such manner that it will not slip down and pull upon the weaker ligaments of the ankle joint,-and to the transverse bar P of the opposing traction portion of the apparatus, located at the foot` of the cot. Following a proper adjustment of the harness, the motor is started, and if a desired load of 200 pounds is employed the scale J at the maximum pull of the lever will indicate a load of 200 pounds which load however will in the kcourse of a few minutes decrease to say 100 pounds, due to the rhythmic elongation and relaxation of the nerve element of the affected joint which being repeated every few seconds causesthe contracted ligaments and tendons of the knee joint to gradually loosen up. The hand wheel T on the screw shaft is then adjusted taking up the 100 poundV slack until the desired 200 pounds are again reached and as a result of the effect of this new lead additional and more deep going relaxation is establishedv tissue of the joint has been accomplished,

whereupon the bones of the joint may separate under approximately a load of 50 pounds. W'hat has been said of the treatment of a knee joint will apply with equal force to the treatment of an elbow joint or other affected part,-except that suitable harness must be employed and connected with the affected parts and with the tractive and stationary portions of the apparatus.

Due to the fact the stroke of this apparatus is elastic producing a rhythmic elongation and relaxation of the aected parts which may be regulated for any desired frequency per minute,-the lessened resistance of the muscles and other soft tissue being duly registered on the scales at both ends of the machine, the slack thus gained is taken up by the adjusting screws to the original load with the effect that the machine thereby penetrates deeper into the joint or joints under treatment at every time ltheslack produced from the relaxation'of the muscles is produced.

Y Attention is again called to the fact that the pulling action' ofthe apparatus is rhythmical: and elastic due to the` action of the springs andas previously indicated the main object of theinvention is tozrestore full mobility in the joints of the arms and legs, or .of the spine anddilferent parts of the body by a systematic relaxation of the affectedl joints.

The patient ,may receive treatment while reclining upon an .operating table or cot, or while seated in a suitable chair, the altitude of the machine being first adjusted to accommodate the patient.

Having thus described my invention what I claim is 1. Therapeutic traction apparatus comprising a frame having guides, spaced apart upper and lower platforms mounted as a unit upon said guides for adjustment thereover, a rotatably supported screw extending between said platforms and connected therewith to move them upon its rotation adjustably over said guides, power mechanism carried by and depending below the lower platform, a rock lever pivotally mounted upon said platforms and extending above and below them, a driving connection between the lower end of the rock lever and said power mechanism adapted to rock said lever about its pivotal mounting, a telescoping spring tension connection having one end connected with the upper end of the rock lever, and a supporting standard pivoted at its lower end to the upper platform and at its upper end to the opposite end of said telescoping spring tension connection.

2. Therapeutic traction apparatus comprising a supporting frame, a motor carried by and supported below the frame, a rock Vlever pivotally mounted upon the frame to extend above and below the frame, driving mechanism connecting the motor with the lower end of the rock lever to rock the lever, a swinging standard pivoted at its lower end to the frame and extending upwardly therefrom, a tension spring connecting the upper end of the lever with the upper end of the standard, and a harness connected with the upper end of the standard to be tensioned thereby.

3. Therapeutic traction apparatus comprising a supporting frame, power mechanism` carried by the frame, a pair of spaced apart swinging levers `each pivoted to the frame, a tension spring connection bridging the free ends of said levers, and a driving connection between said power mechanism and one of said levers to drive the other lever through the spring tension connection, and a harness connected with the other lever.

4. Therapeutic traction apparatus comprising a support, a rock lever pivoted intermediate its ends to the support, a swinging standard pivoted at one end to the support, power mechanism connected With one end of the rock lever to rock said lever, a pair of, telescoping tubular members bridging the space between U the opposite end of the rockrlever and the free end of the swinging standerd, one member connected to the lever and the other member connected to the standard, a tension spring arranged Within said members and connected at opposite ends to the opposite members forming a yielding driving connection therebetween, and a harness connected to the end of the telescoping member carried by a standard. In testimony whereof, I sign this specification. Y v


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2623518 *Oct 14, 1950Dec 30, 1952Odette VaquetteTable for the elongation of the vertebral column
US2638091 *Sep 11, 1951May 12, 1953Varco SamuelPelvic traction belt
US2811965 *Feb 1, 1956Nov 5, 1957Richards Fred CPortable traction unit
US2822805 *May 2, 1955Feb 11, 1958Hill Lab CompanyTherapeutic traction apparatus
US2861565 *Dec 11, 1953Nov 25, 1958Leo A LapierreIntermittent or continuous traction device
US2940441 *Sep 21, 1956Jun 14, 1960G & D Surgical & Drug Co IncTraction device
US3087489 *May 1, 1961Apr 30, 1963Gilbert EisemanUniversal orthopedic traction and holding device
US3385292 *Jul 23, 1965May 28, 1968James H. HardyTraction device
US5020525 *Sep 19, 1989Jun 4, 1991Zimmer, Inc.Ankle distraction apparatus
US5478307 *Jun 27, 1994Dec 26, 1995Wang; Chun-JongApparatus for foot traction
US5730706 *Oct 29, 1996Mar 24, 1998Krahnen GmbhSpinal therapeutic device
US9173649 *Mar 30, 2012Nov 3, 2015Allen Medical Systems, Inc.Low profile distractor apparatuses
US20120259343 *Oct 11, 2012Allen Medical Systems, Inc.Low profile distractor apparatuses
EP2508153A1 *Apr 3, 2012Oct 10, 2012Allen Medical Systems, Inc.Low profile distractor apparatuses
U.S. Classification602/33
International ClassificationA61H1/02, A61H1/00
Cooperative ClassificationA61H1/008, A61H1/0218
European ClassificationA61H1/02D