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Publication numberUS2832334 A
Publication typeGrant
Publication dateApr 29, 1958
Filing dateMay 23, 1956
Priority dateMay 23, 1956
Publication numberUS 2832334 A, US 2832334A, US-A-2832334, US2832334 A, US2832334A
InventorsWhitelaw Stephen H
Original AssigneeWhitelaw Stephen H
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Therapeutic device for use in manipulative treatment of joints of the human body
US 2832334 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

S. THERAPEUTIC DEVICE FOR USE IN MANIPULATIVE April 29, 1958 H. WHITELAW 3 TREATMENT OF JOINTS OF THE HUMAN BODY Filed May 2a, 1956 2 Sheets-Sheet 1 w n F INVENTOR. STEPHEN WH/TELAW ATTORNEYS Apnl 29, 1958 s. H. WHlTELAW 2,832,334

THERAPEUTIC DEVICE F OR USE IN MANIPULATIVE TREATMENT OF JOINTS OF THE HUMAN BODY Filed May 23, 1956 2 Sheets-Sheet 2 .g h EH53 5 30 as 3/ INVENTOR. STEPHEN H. WH/TELAlW BY WW v ATTORNEYS United States Patent THERAPEUTIC DEVICE FUR USE IN MANlilPU- LATIVE TREATll HENT OF JOINTS OF THE HUMAN BODY Stephen H. Whitelaw, Newington, Conn.

Application May 23, 1956, Serial No. 586,766

9 Claims. (Cl. mil-25) The present invention relates to therapeutic devices and, more particularly, to a novel therapeutic device for use in the manipulative treatment of joints of the human body.

Frequently human joints are adversely affected by illness or, accident resulting in stiffness and lack of mobility of the joint. in many cases, such malfunctioning or disability of the joint can be alleviated by proper manipulativetreatment, but relatively little use of such treatment has been made because it is diflicult to self-administer and usually has to be done frequently and over long periods of time to be effective. Even with the assistance of skilled personnel, such treatments are frequently painful and too irregular for maximum benefit.

it is an aim of this invention to provide an inexpensive light-weight portable therapeutic device which is suitable for use on any of the major joints of the body such as the Wrist, shoulder, elbow, knee or ankle and which may be operated by the patient himself to impart motion to the joint and also to exercise the ad ductor and abductor or flexor and extensor muscles of the affected joint through the application of external force.

It is another aim of this invention to provide a therapeutic device of the type described which may be used by patient to move the joint and exercise the muscles associated therewith by the use of these muscles to operate the exerciser against a preselected resistive force.

it is still another aim of this invention to provide a device of the type described which will produce the desired movements of the joint in a fully controlled manner and with visible indication of the operation so as to provide maximum therapeutic benefits, which is of simple and economical construction and comfortable to use, and which is particularly adaptable for home use with a minimum of instruction and training.

Other objects will be in part obvious, and in part pointed out more in detail hereinafter.

The invention accordingly consists in the features of construction, combination of elements and arrangement of parts which will be exemplified in theconstruction hereafter set forth and the scope of the application of which will be indicated in the appended claims.

in the drawings:

Fig. l is a perspective view of an embodiment of a joint manipulating device constructed in accordance with the invention as applied to a Wrist.

Fig. 2 is a perspective view of the device of Fig. 1, taken from the opposite side.

Fig. 3 is a perspective view of the device of Fig. l as applied to a wrist but turned 90 from the position shown in Fig. l; and

Fig. 4 is a fragmentary longitudinal cross-sectional view of the device.

The drawings and the following description describe the invention as used in connection with a Wrist joint. However, it is of course to be understood and will be readily apparent that the invention is equally applicable to any of the major joints of the body, and that the specific use of the invention described herein is for example only.

ice

With reference to the drawings, a therapeutic device constructed in accordance with the invention is comprised of a pair of oppositely extending lever arms 10 and 11. The lever arm it has slidably mounted thereon a pair of L-shaped brackets 12 and 13. The brackets may be secured in any adjusted position longitudinally of the lever arm 10 by means of the thumb screws 14.. In the specific embodiment shown, a sling 17 adapted to cradle a forearm, as shown in dotted lines in Figs. 1 and 3, is suitably attached to the brackets 12 and 13 by means such as the screws 15. The sling is preferably padded as indicated at 17 and is provided with straps l8 and 19 to secure the forearm in the sling.

As shown in Figs. 1 and 2, the lever arm 21 is pro vided with a U-shaped bracket 22 slidably mounted there on. The bracket 22 may be secured in any adjusted position longitudinally of the lever arm 11 by the thumb screw 23, and is provided with hand grips 24- on each of its legs for a purpose to be hereinafter described. In Fig. 3 a modified bracket 22a is mounted on the lever arm 11 in the same manner as the bracket 22, and is provided with a cross-piece 25 having a hand grip 24a mounted thereon. The reason for the variation in structure between the brackets 22 and 22a will be fully apparent from the description of operation of the device hereinafter appearing.

With particular reference to-Fig. 4-, the lever arm 11, in the embodiment shown, is connected to and is preferably integral with a circular plate member 28 disposed coaxially of a cup shaped casing or housing 29 having a radially extending portion 30. The radially extending portion 30 of the casing has an end portion 31 of reduced thickness having a recess 32 in which the lever arm 10 is received and retained by means such as the screw 33. A pinion 36 is disposed within the casing 29 and is fixed to a shaft 37 extending through and journaled in the casing as at 38. An operating handle 39 is secured to the shaft 37 externally of the casing 29 as by means of the setscrew 46. When it is desired;

to lock the handle 39 and hence the shaft 37 and pinion 36 against rotational movement, this is accomplished conveniently by the slide latch 4-1 which can he slid into engagement with the notch 42.

A gear engaged with the pinion 36 is disposed within the casing 29 and is rotatably mounted on a shaft 46 which is journaled in a boss 44 internally of the casing 2h. One end of the shaft 46 extends through the plate member 28 and is provided at said one end with a radially extending flange 47 received in a recess 48 in the plate member 28. The other end of the shaft 46 extends outwardly of the casing 29 and is threadably engaged with an adjusting cap nut 4?. The cap nut $9 is provided with an axially extending recess 50 in which is received a spiral spring 53 surrounding the shaft 46, the spring 53 being engaged at the other end with the casing 29. A pin 5J4 extends diametrically through the shaft 46 and is received within a slot 55 extending diametrically of the boss 44 to prevent rotation of the shaft relative to the casing during adjustment and permitting movement: of the shaft axially of the casing.

The boss 44 of casing 29 engages upon the upper side of the gear 45 while a friction member :36 is disposed between gear 45 and the plate member 23. The purpose of the friction member 56 is to provide a yieldable connection between the gear 45 and plate member 28 whose force can be varied by adjusting the cap nut 49. Since there is only a metal to metal contact of small area between boss 44 and gear 45, little frictional force is exerted between these two members. i

In the use of the device as shown in Fig. l, the lever arm it) is attached to the forearm through the use of the adjustable sling 1'!" in such position that the shaft 46 is coaxial with the pivot point of the wrist. The bracket 22. is then adjusted to receive the hand as shown. In order to condition the device for the application of an external force, the cap nut 4-9 preferably is turned down sufiiciently to prevent slippage of the gear 45 relative to the plate member although, if desired, the force of spring 53 may be adjusted by backing off the cap nut 49 to permit slippage and thus limit the maximum force which can be applied to the joint. After the device is in place, the handle or knob 39 is turned by the patient to apply force to the hand through the gearing 36, 45 and friction member 56 to the lever arm 11. As will be apparent, the bracket 22 by engagement with the hand will pivot the wrist relative to the forearm in a plane normal to the general plane of the hand. Movement of the wrist can, of course, be accomplished in either direction from the median position of the Wrist wherein the hand is aligned with the forearm. flexion of the Wrist for use in determining improvement in the condition of the joint, indicia are provided on the casing as at 60 and a pointer 61 mounted on the lever arm 11 as is most clearly seen in Fig. 2.

If it is desired to have the patient manipulate the joint by the use of the wrist muscles themselves, the slide latch 41 is moved to the locking position as shown in Fig. 2 to prevent rotation of the pinion 36. Henceforth, any movement of the lever arm 11 relative to the lever arm 10 Will be opposed by the resistance offered by the friction member 56 disposed between the gear 45 and plate member 28. As described above this resistive force of the friction member may be varied by adjustment of the adjusting cap 49 to increase or decrease the force imposed on the friction member by the gear 45 and plate member 28. To provide an indication of the resistive force opposing relative movement of the lever arms Ill and U. and thus provide a comparative indication of the improve ment in the stren th of the muscles, indicia are provided on the casing 25 as at 62 and a pointer .63 mounted on the cap 49. In the use of the device as last described, the patient grasps one of the hand grips 24 and moves his hand in a direction to exercise the flexor and extensor muscles of the wrist.

In Fig. 3 the device is illustrated as being used to pivot the wrist in the general plane of the hand. As can be seen in Fig. 3, to enable the patient to engage the lever arm 11 in a manner appropriate for this type of manipulation, a modified bracket 22a having a crosspiece, or finger grip 25 extending between the leg of the bracket is mounted on the lever arm 11. By positioning the finger grip 25 far enough out on lever arm 11, the patients fingers can encircle the finger grip and exert movement of the joint. The manner of using the device is identical with the manner described above in connection with Fig. 1 in that the lever arm 11 may be pivoted relative to the lever arm 10 either by rotation of the operating handle 31 or through the use of the muscles of the affected joint themselves.

It should be apparent that the device is suitable for use on such joints as the shoulder or knee by the provision of appropriate means on the lever arms 10 and 11 to secure the lever arms relative to the limbs on either side of the joint. Thus, it can be seen that there has been provided a joint manipulator of simple, economical construction particularly adapted to home use by a patient and which requires a minimum of skill or training to operate. The exerciser is versatile in that it may be adapted for use on all major joints of the body and is obviously rugged and capable of extended usage.

As many changes could be made in the above con struction and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter con- In order to indicate the amount of d tained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the language used in the following claims is intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

l claim:

1 t r 1. I r

treatment of joints of the human body comprising a first member having means for attachment to the body on one side of a joint, a lever arm pivotaily connected to the first member and having means for engagement with the body on the other side of the joint, manually oparable means mounted on the first member for pivoting the lever arm relative to the first member, a friction clutch between the manually operable means and the lever arm, and means for latching the manually operable means to prevent movement thereof.

3. A therapeutic device for use in the manipulative treatment of joints of the human body comprising a first member having means for attachment to the body on one side of a joint, a lever arm pivotaliy connected to the first member and having means for engagement with the body on the other side of the joint, manually operable means mounted on the first member for pivoting the lever arm relative to the first member, a friction clutch between the manually operable means and the lever arm, means for varying the effective force of the friction clutch, and means for latching the manually operable means to prevent movement thereof.

4. A therapeutic device for use in the manipulative treatment of joints of the human body, comprising a first lever arm for attachment to the body on one side of a joint, a second lever arm for attachment to the body on the other side of said joint, a pivotal connection. for said lever arms, comprising gearing operatively connecting said lever arms, a friction clutch associated with said gearing, means for locking said gears against relative rotation, whereby pivotal movement of one lever arm is opposed by said friction clutch, and a manually operated handle for rotating said gears whereby one lever arm is caused to pivot about said pivotal connection.

5. The combination of claim 4, further including means for varying the torque transmitted by said friction clutch.

6. The combination of claim 4, further including indicia carried by said pivotal connection for indicating the angular displacement of said lever arms.

7. The combination of claim 4, further including attachments for said lever arms for attachment to the limbs of the patient and means for variably positioning said attachments on said lever arms.

8. The combination of claim 7, wherein one of said attachments is provided with a hand grip to be gripped by the fingers of the patient.

References Cited in the file of this patent UNITED STATES PATENTS 2,387,966 Zander Oct. 30, 1945 Magida Nov. 29, 1955

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2387966 *Dec 21, 1943Oct 30, 1945Richard Zander GustafGymnastic apparatus for mobilizing stiff joints
US2725232 *Sep 21, 1951Nov 29, 1955Brina K MagidaPush and pull friction type exerciser
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3042023 *May 23, 1960Jul 3, 1962Wallace B YatesExerciser
US3159923 *Jan 27, 1961Dec 8, 1964All American Eng CoHand measuring means for fitting mechanical hands to patients
US3449769 *Jun 27, 1966Jun 17, 1969Cornell Aeronautical Labor IncPowered exoskeletal apparatus for amplifying human strength in response to normal body movements
US3474466 *Jun 9, 1967Oct 28, 1969Steeper Hugh LtdGas operated arm prosthesis
US4149532 *Dec 27, 1976Apr 17, 1979Terry Thomas ECerebral palsy arm and hand brace
US4385760 *Aug 30, 1979May 31, 1983Newmark Industries, Inc.Isokinetic exerciser
US4402502 *Apr 3, 1981Sep 6, 1983Industrial Energy Specialists, Inc.Exerciser for disabled persons
US4463949 *Nov 21, 1983Aug 7, 1984Mccoy Manufacturing CompanyMachine for arm wrestling
US4487199 *Mar 29, 1982Dec 11, 1984Imasco-Cdc Research FoundationDevice for imparting continuous passive motion to human joints
US4576148 *Feb 3, 1984Mar 18, 1986Sutter Biomedical, Inc.Continuous passive motion hand device
US4612919 *Oct 3, 1984Sep 23, 1986Best Walter EAdjustable limb support
US4632393 *Jan 4, 1985Dec 30, 1986Noord Andrew J VanMulti-purpose exercising apparatus
US4641832 *Apr 24, 1984Feb 10, 1987Portable Isokinetics, Inc.Wrist/ankle exercising apparatus
US4651719 *Jan 22, 1985Mar 24, 1987Danninger Medical Technology, Inc.Continuous passive motion shoulder unit
US4669451 *Dec 12, 1984Jun 2, 1987Ernst KnollApparatus for postoperative and other exercising of elbow and shoulder joints
US4699376 *Dec 18, 1985Oct 13, 1987Portable Isokinetics, Inc.Hip and knee joint exercising apparatus
US4718665 *Jul 15, 1986Jan 12, 1988Soma Dynamics CorporationExercise device
US4807609 *May 26, 1987Feb 28, 1989Lmb Hand Rehab Products, Inc.For elevation of a hand above the elbow
US4809688 *Apr 15, 1987Mar 7, 1989Empresa Cubana Importadora Y. Exportadora Of Products Medicos, T/A MedicubaSinergic splint for early mobilization of the flexor tendons of the hand
US4822027 *Sep 15, 1988Apr 18, 1989Kascak Thomas RTherapeutic hand and arm exercise device
US4858912 *Aug 22, 1988Aug 22, 1989Boyd Billy EArm exercising apparatus
US4986537 *Jan 22, 1990Jan 22, 1991Orta Frank DSidewinder exerciser
US5002044 *Oct 10, 1989Mar 26, 1991Carter Peter RDerotation wrist brace
US5052379 *Apr 27, 1989Oct 1, 1991Soma Dynamics CorporationCombination brace and wearable exercise apparatus for body joints
US5067479 *Aug 21, 1990Nov 26, 1991Toronto Medical Corp.Continuous passive motion device
US5088731 *Oct 29, 1990Feb 18, 1992M. Michael CarpenterArm exercise machine
US5111808 *Nov 29, 1990May 12, 1992Bissell Healthcare CorporationFoot elevator blanket cradle
US5147286 *Aug 27, 1990Sep 15, 1992Bissell Healthcare CorporationHip abduction device
US5176594 *Jul 5, 1991Jan 5, 1993Lee Dennis SApparatus and method for manipulation of temporomandibular joint
US5328446 *Oct 29, 1992Jul 12, 1994Becker Orthopedic Appliance CompanyOrthopedic joint and method for treating a contracture
US5358469 *Aug 5, 1991Oct 25, 1994Ultraflex Systems, Inc.Dynamic splint
US5362290 *Jun 30, 1993Nov 8, 1994Huang Shih PinMulti-purpose exerciser having a clutch means
US5376091 *Apr 11, 1994Dec 27, 1994Smith & Nephew Richards, Inc.Dynamic finger support
US5458560 *Sep 3, 1993Oct 17, 1995Jace Systems, Inc.Continuous passive motion device for a wrist
US5472410 *Apr 22, 1994Dec 5, 1995Deroyal/Lmb, Inc.Adjustable flexion and extension joint orthoses
US5503619 *Sep 15, 1994Apr 2, 1996Bonutti; Peter M.Orthosis for bending wrists
US5620410 *Oct 3, 1995Apr 15, 1997Jace Systems, Inc.Continuous passive motion device for a wrist
US5658241 *May 17, 1995Aug 19, 1997Ultraflex Systems, Inc.Multi-functional dynamic splint
US5683353 *Nov 29, 1995Nov 4, 1997Deroyal/Lmb, Inc.Adjustable flexion and extension joint orthoses
US5697893 *Jun 14, 1995Dec 16, 1997Rhenter; Jean-LucStructure for holding the ankle joint
US5711746 *Mar 11, 1996Jan 27, 1998Lord CorporationPortable controllable fluid rehabilitation devices
US5749840 *Oct 31, 1995May 12, 1998Ultraflex Systems, Inc.Dynamic splint
US5755650 *Nov 8, 1995May 26, 1998Urso; Charles L.Home and office health and fitness chair
US5788618 *Jul 9, 1993Aug 4, 1998Kinetecs, Inc.Exercise apparatus and technique
US5848979 *Jul 18, 1996Dec 15, 1998Peter M. BonuttiFor effecting relative movement between bones in an arm of a patient
US5954621 *Jun 14, 1996Sep 21, 1999Kinetecs, Inc.Exercise apparatus and technique
US5976063 *Jul 6, 1994Nov 2, 1999Kinetecs, Inc.Exercise apparatus and technique
US5980435 *Jun 23, 1995Nov 9, 1999Kinetecs, Inc.Methods of therapy or controlled exercise using a jointed brace
US6139476 *May 4, 1999Oct 31, 2000Gallant; Raymond J.Dynamic tensioner for physiological sculpting
US6241643 *Mar 25, 1998Jun 5, 2001Soren A. LoftArm exercising device
US6325770Feb 27, 1998Dec 4, 2001Smith & Nephew Kinetec SaDevice for producing continuous passive motion
US6422975 *Aug 8, 2001Jul 23, 2002Eugene F. ChermakWrist/hand mobility enhancer/exerciser
US6506172 *Oct 10, 2000Jan 14, 2003Dynasplint Systems, Inc.Supinator/pronator therapy system to bring mobility to wrist, forearm and/or elbow
US6872187Aug 25, 1999Mar 29, 2005Izex Technologies, Inc.Orthoses for joint rehabilitation
US7066896Nov 12, 2002Jun 27, 2006Kiselik Daniel RInteractive apparatus and method for developing ability in the neuromuscular system
US7235058Sep 11, 2002Jun 26, 2007Djo, LlcLockable hinge
US7384406Aug 25, 2006Jun 10, 2008Djo, LlcOrthopaedic brace having a range of motion hinge with an adjustable-length strut
US7722555Jun 26, 2007May 25, 2010Djo, LlcLockable hinge
US7918809Jun 9, 2008Apr 5, 2011Djo, LlcOrthopaedic brace having a range of motion hinge with an adjustable-length strut
US7955285Jan 20, 2004Jun 7, 2011Bonutti Research Inc.Shoulder orthosis
US7981067Nov 17, 2008Jul 19, 2011Bonutti Research Inc.Range of motion device
US8012108Aug 12, 2005Sep 6, 2011Bonutti Research, Inc.Range of motion system and method
US8038637Jul 29, 2008Oct 18, 2011Bonutti Research, Inc.Finger orthosis
US8062241Oct 12, 2005Nov 22, 2011Bonutti Research IncMyofascial strap
US8066656Oct 28, 2005Nov 29, 2011Bonutti Research, Inc.Range of motion device
US8100844Nov 15, 2006Jan 24, 2012Ultraflex Systems, Inc.Ambulating ankle and knee joints with bidirectional dampening and assistance using elastomeric restraint
US8123709Apr 13, 2009Feb 28, 2012Ultraflex Systems, Inc.Ambulating knee joint
US8251934Dec 10, 2007Aug 28, 2012Bonutti Research, Inc.Orthosis and method for cervical mobilization
US8273043Jul 25, 2008Sep 25, 2012Bonutti Research, Inc.Orthosis apparatus and method of using an orthosis apparatus
US8491572Jul 27, 2006Jul 23, 2013Izex Technologies, Inc.Instrumented orthopedic and other medical implants
US8678979Mar 6, 2007Mar 25, 2014Izex Technologies, Inc.Remote monitoring of a patient
US8678984 *Feb 17, 2011Mar 25, 2014Gary PoillucciHand, wrist, arm and fingers therapy and exercising device
US8740879Sep 12, 2012Jun 3, 2014Izex Technologies, Inc.Instrumented orthopedic and other medical implants
US8753301 *Jun 11, 2010Jun 17, 2014Phong TranAdjustable resistance joint brace
US8784343Jul 29, 2011Jul 22, 2014Bonutti Research, Inc.Range of motion system
US8784475Jun 28, 2012Jul 22, 2014Izex Technologies, Inc.Instrumented implantable stents, vascular grafts and other medical devices
US8790258Jan 19, 2010Jul 29, 2014Izex Technologies, Inc.Remote psychological evaluation
US20110306911 *Jun 11, 2010Dec 15, 2011Phong TranAdjustable resistance joint brace
WO1993002644A1 *Aug 5, 1992Feb 18, 1993Ultraflex Systems IncDynamic splint
WO1995001769A2 *Jul 8, 1994Jan 19, 1995Kinetecs IncExercise apparatus and technique
WO1997000661A1 *Jun 20, 1996Jan 9, 1997Kinetecs IncExercise apparatus and technique
WO2000012041A2 *Aug 30, 1999Mar 9, 2000Izex Technologies IncCoordination exercises for neuromotor training
Classifications
U.S. Classification601/33, 601/40, 482/118, 602/16
International ClassificationA63B23/035, A63B21/015, A63B23/14, A63B21/012
Cooperative ClassificationA63B23/14, A63B21/015
European ClassificationA63B23/14