Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS2055024 A
Publication typeGrant
Publication dateSep 22, 1936
Filing dateAug 7, 1934
Priority dateAug 7, 1934
Publication numberUS 2055024 A, US 2055024A, US-A-2055024, US2055024 A, US2055024A
InventorsBittner Jr Joseph E
Original AssigneeBittner Jr Joseph E
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Fracture reducing splint
US 2055024 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Sept. 22-, 1936. J. E. BITTNER, JR 2,055,024

I FRACTURE REDUCING SPLINT Filed Aug. 7, 1954 2 Sheets-Sheet l INVENTOR dbJZ/ H L5 "r/wsz J2.

. ATTORNEY Sept. 22, 1936. J. E. BITTNER, JR 1 4 2,055,024-

FRAGTURE REDUCING 'SPLINT v Filed Aug. 7, 1934 2 sheetssheet 2;



ATTORN EY Patented Sept. 22, 1936 v UNITED STATES PATENT OFFICE FRACTURE REDUCING SPLINT Joseph E. Bittner, Jr., Yakima, Wash. Application August 7, 1934, Serial No. 738,782

3 Claims. (01. '12s s) This invention relates to fracture reducing splints, and it has reference more particularly to splints designed for the reduction of fractures of the bones of the legs or arms of the human body; it being the principal object of this invention to provide an improved form of splint, designed to effect reduction, through skeletal attachment "permit relative rotation of the two traction members when applied to the fractured bone, as well "as angular adjustment thereof thereby to pro- "vide for any'adjustment that is required to perf'ect alinement of the fractured parts.

,Another object of this invention is to provide a splint that is exceedingly light in weight; that is 'rigid and substantial in use; and which gives an abundance of clearance about the limb to which it is applied, thus permitting easy application of dressings, casts, or the like, and does not interfere with the taking of X-ray pictures or in fluoroscopic viewing of the fracture.

i More specifically stated, the objects of thepresent invention reside in' the provision of a splint of the character above stated comprising two :limb encircling frames,spaced apart by extendllble'rods through which the forces are applied ;for effecting the reduction; the frames being designed for mounting .traction'wires thereacross whereby direct skeletal attachment is made with the parts of the fractured bone.

Other objects of the invention reside in the specific details'of construction of the frames to .provide for easy application of the splint and for placing a necessary tension on the traction wires that are mounted thereby; also in the details of construction of the rods and the manner of mounting them to permit rotation and angular adjustment of the fractured parts of the bone to which the frames are attached.

Still other objects of the invention reside in the details of construction and in the combination 'of the'various parts, as will hereinafter be described.

In accomplishing these and other objects of the invention, I have provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawings, where- [in- Fig. 1 is a perspective view of the splint embodied by the present invention, as applied toa limb in the reduction of a fracture.

view of a wire anchoring to its being applied to a limb. 5

Fig. 3 is an end View of the splint, particularly illustrating the hinging of the two half sectionsof the circular end frame and the location of the frame spreading nut whereby tension is'applied to the traction wire mounted diametrically across the frame.

Fig. 4 is a crosssectional detail on line4-4 .in Fig. 3, showing the construction of a wire attaching clamp.

Fig. 5 is a cross section-on line 5--5 in Fig.3.

Fig. 6 is a sectional detail illustrating the construction of one of the frame spacing rods and its end mountings.

Fig. '7 isa side View of a splint, illustrating the relative rotation of the opposite end frames.

Fig. 8 is a similar view illustrating relative angular adjustment of the end frames.

Referring more in detail to the drawings- In a preferred formof construction, the present splint comprises opposite end frames -l--Iw,'- respectively. Each of these frames-is circular in form and of a size sufiicient to encircle the limb to which it is applied with ample clearance for application of dressings, casts, or the like, to the 'to be opened apart from the closed position, as

seen in Fig. 1, to the open position in which they are shown in Fig. 2. When a-frame is closed,'the free end of one of the semicircular sectionsfits between spaced extensions 4--4 at the corresponding end of the other section thus to retain these disconnectible ends rigidly in alinement. Also there is an expanding nut 5 fixed on a bolt 6 which is threaded through a lug 1 at the free end of one semicircular section and seated pivotally at one end in a socket 8 of a lug 9 on the end of the other section. This construction provides that the bolt 6 may be rotated by the nut in a manner to extend it and thus spread the free ends of the ring sections apart. This expansion, as will presently be explained, applies tension to the wire which is drawn diametrically across the frame, with its opposite ends attached, respectively,'to the opposite sections of the ring. The two frame rings I and la, in use, are" held in spaced relation by a plurality of cross rods extended therebetween at equally spaced intervals about the frame. Each of these cross rods comprises a tubular end section H and an extending threaded section [2 telescopically applied thereto. The tubular section is provided at its outer end with a. ball l3 revolubly fitted in a socket l4 provided therefor in the ring I the ball being held in place in the socket by an overlying clamp plate l5 secured by bolts I6 and I1 extending through its opposite ends and threaded into' the ring. It is desirable that the bolt l6 be headed for wrench adjustment, while,

the bolt ll be provided with a thumb nut na whereby it may be more quickly adjusted. The threaded sections of the severalconnecting rods are provided at their outer ends with flattened reduced portion [8 designed to; loosely seat within sockets 19 provided therefor in the inside face of the ring la. These latter sockets are'provided in their bases with slots I9a through the ring to receive the flattened extensions I8 to prevent .rotation of the threaded rods, and these sockets are located in close relation about the ring.

The threaded section of each extension rod is adjustable within the tubular section to extend or decrease the spacing of the circular frames 1 and la and the amount of extension of each threaded rod is effected and is retained by a nut 20 mounted thereon for abutment against the end of the tubular section. Also look nuts 2! arethreaded on each of the threaded sections of .rod for tightening against the adjusting nuts to hold them against turning and thereby positively fix the amount of extension of the splint.

For the purpose of making skeletal attach- "ment to a fractured bone, I have provided Wires 25, which, as previously mentioned, are mounted diametrically across the circular frames, and which are passed directly through the bone of the limb at opposite sides of the fracture to be reduced. These wires are secured at their ends tothe frames by clamping bolts 24. These bolts are extended through apertures provided therefor in the rings and they have apertures 26 just below their head portions 24a through which the ends of the wires are extended, and nuts 30 are threaded onto the bolts to effect the clamping of the wire between the heads and side face of the ring.

"In using the splint, the wires 25, are first passed through the bone at opposite sides of the fracture, then the ring I, which has the cross rods'attached thereto, is applied about the limb and the ends of the wire secured thereto by the .clamping bolts 24. After the ends' of the wire have been secured, tension is then applied to the wire by rotation of the frame expanding nut 5 which effects an outward adjustmentrof the two sections of the circular frame, whereby the wire is placed under sufficient tension that it cannot possibly bend and by so doing cut into the bone. Then the frame section Id is opened apart, as shown in Fig. 2, and is applied about the limb and the ends thereof brought together to close the frame for the attachment of the ends of the other wire thereto in the same manner, as above described. The extension rods are then adjusted to seat their reduced ends within selected sockets l9 provided therefor in the ring la. Then by tightening the nuts'20 on the threaded rods up against the ends of the tubular portions, the two frames may be forcibly spaced apart to apply the traction forces to the fractured bone. When the extension has reduced the fracture, the limb may be X-rayed or viewed by fluoroscope to determine whether or not the fractured parts are in proper alinement, and if extension is sufficient. If they are not in alinement one of the frame members may be rotated relative to the other to correct the alinement, as is illustrated in Fig. 7, or if it should be required to straighten the bone, or for other reasons, the frames may be adjusted to definite angular relationship by the extension of one or more rods beyondthe extension of the others, as illustrated in Fig. 8.

After the fracture has been properly reduced the clamping plates l5, previously loosened, overlying the ball ends of the rods, are tightened down by wrench application to bolts [6, so that all partsv are held rigidly and securely against further rotative, or lateral movement.

It is apparentthat by providing the ring la. with the closely located sockets for the ends of the extension rods, these rods may be set in the frame substantially perpendicular thereto regardless of the angular relationship that the wires may have. When a cast is to be appliedto the limb, it is desirable to apply anchors to the wires close to opposite sides of the limb thus to prevent the limb slipping laterally along the Wire. These, as shown in Fig. 1a, are held at set positions by clamp screws 35a tightened against the wire. 7 V e 7' A The features of this splint construction reside in its simplicity; in the ease with which it may .be applied tothe wires secured in the frames and placed under tension also, it is apparent that the adjustability of the connecting rods provides for a considerable amount of extension and the mechanical application of forces to the extent necessary forthe proper reduction of any fracture.

Another feature of theinvention resides in the fact that after the reduction has been properly made, and while the .limb is still held in the splint, a cast may be applied about the'li'mb. In so doing, the anchors 35 are embedded in the cast and serve as anchor members which effectively anchor the wires in the cast. With the Wires anchored in this manner, the splint may be removed and the cast then operates to prevent any contraction of the limb or mis-alinement of the fractured parts. 'When it is desiredto change the cast, the splint may again be applied to the limb and the'wires again secured therein, and the'limb, by means of the splint, held against contraction or movement during the removing and replacing of casts.

Having thus ,describedmy invention, what I claim as new therein and desire to secure by Letters-Patent is- '1. In a splint of the character described, a pair of opposite end frames, rods adjustably spacing said frames; each of said frames being of circular form and composed of opposite side sections, with ends'pivotally joined and having disconnected opposite ends,'means on said opposite side sections for mounting the ends of a traction wire, across the frame, and an expand- 65 ing means between'the disconnected ends of the sections for applying tension tothe wire.

2. A splint of the characterdescribed, comprising a pair of spaced, circular frames forming a rolling support for a limb encircled thereby;

controlled expansion of the'frames, thereby to each frame comprising movably connected com place the wire under tension, and rods extended between the frames, and extendable in length to eifect the application of tractive forces for reduction of a fracture.

3. A splint of the character described, comprising a pair of spaced, circular frames, each frame comprising two semi-circular sections with ends at one side of the frame pivotally joined together, and the ends at the other side slidably 10 engaged for an opening and closing movement,

a clamp member on each of the sections of the frame for securing thereinthe opposite ends of a wire, expanding screws joining the slidably enaged ends of the sections for placing the wires under adjustable tension, and rods connecting the two frame sections, and adjustable in length for controlling the spacing and angular relationship of the frames.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3941123 *May 20, 1975Mar 2, 1976Mstislav Vasilievich VolkovApparatus for joint movement restitution
US3977397 *Nov 27, 1974Aug 31, 1976Kalnberz Viktor KonstantinovicSurgical compression-distraction instrument
US4006740 *Jul 8, 1975Feb 8, 1977Mstislav Vasilievich VolkovSurgical apparatus for external transosteal fixation of bone fragments and joint ends
US4033340 *Dec 9, 1974Jul 5, 1977Kalnberz Viktor KonstantinovicSurgical compression-distraction instrument
US4127119 *May 6, 1977Nov 28, 1978Kronner Richard FFracture reducing and joint immobilizing apparatus
US4220146 *Jan 18, 1979Sep 2, 1980Cloutier Jean MarieBiplanar joint distractor
US4615338 *Sep 18, 1985Oct 7, 1986Kurgansky Nauchno-Issledovatelsky Institut Experimentalnoi I Klinicheskoi Ortopedii I TravmatologiiAutomatic compression-distraction apparatus
US4823781 *Jul 2, 1987Apr 25, 1989Buchanan William JMethod and apparatus for percutaneous fracture reduction and fixation
US4890631 *Jan 29, 1988Jan 2, 1990Societe De Realisations Electro-Mecaniques SoremExternal fixation device intended for orthopedic use
US4947835 *Apr 5, 1989Aug 14, 1990Dynasplint Systems, Inc.Adjustable splint assembly
US5062844 *Sep 7, 1990Nov 5, 1991Smith & Nephew Richards Inc.Method and apparatus for the fixation of bone fractures, limb lengthening and the correction of deformities
US5095919 *Oct 4, 1988Mar 17, 1992Jaquet Orthopedie S.A.Arcuate element and external fixation device
US5112331 *Nov 20, 1990May 12, 1992Vel MiletichOrthopedic pins for external fixator
US5281221 *Dec 5, 1990Jan 25, 1994Tadych Kevin LAntimicrobial device for use in external fixators
US5451225 *Feb 2, 1994Sep 19, 1995Texas Scottish Rite Hospital For Crippled ChildrenFastener for external fixation device wires and pins
US5540686 *Feb 16, 1994Jul 30, 1996Endocare AgApparatus for lengthening bones
US5620442 *May 12, 1995Apr 15, 1997Bailey; Kirk J.Method and apparatus for external fixation of small bones
US5630814 *Jun 2, 1995May 20, 1997Texas Scottish Rite Hospital For Crippled ChildrenFastener for external fixation device wires and pins
US5662650 *May 12, 1995Sep 2, 1997Electro-Biology, Inc.Method and apparatus for external fixation of large bones
US5669908 *Jan 16, 1996Sep 23, 1997Gracilla; R. V.Cast brace for femoral shaft fractures in children
US5681309 *Oct 10, 1995Oct 28, 1997Texas Scottish Rite Hospital For Crippled ChildrenDistractor mechanism for external fixation device
US5702389 *Jan 13, 1997Dec 30, 1997Smith & Nephew Richards, Inc.Orthopaedic fixation device
US5728095 *Oct 7, 1996Mar 17, 1998Smith & Nephew, Inc.Method of using an orthopaedic fixation device
US5743898 *May 9, 1996Apr 28, 1998Electro-Biology, Inc.Method and apparatus for external fixation of small bones
US5766173 *May 25, 1995Jun 16, 1998Texas Scottish Rite Hospital For ChildrenDistractor mechanism for external fixation device
US5891143 *Oct 20, 1997Apr 6, 1999Smith & Nephew, Inc.Orthopaedic fixation plate
US5968043 *Feb 10, 1998Oct 19, 1999Texas Scottish Rite Hospital For ChildrenPlastic double nut mechanism enabling rigid orthopedic distraction
US5971984 *Mar 17, 1998Oct 26, 1999Smith & Nephew, Inc.Method of using an orthopaedic fixation device
US6030386 *Aug 10, 1998Feb 29, 2000Smith & Nephew, Inc.Six axis external fixator strut
US6171308Aug 25, 1997Jan 9, 2001Kirk Jay BaileyMethod and apparatus for external fixation of large bones
US7615051 *Feb 19, 2004Nov 10, 2009Synthes Usa, LlcCraniofacial fracture reduction assembly
US8834467Aug 9, 2011Sep 16, 2014Stryker Trauma SaExternal fixator system
US8945128Mar 11, 2013Feb 3, 2015Stryker Trauma SaExternal fixator system
US8951252May 25, 2011Feb 10, 2015Stryker Trauma SaExternal fixation system
US9011438Jun 23, 2008Apr 21, 2015Stryker Trauma SaRadiolucent orthopedic fixation plate
US9101398Aug 23, 2012Aug 11, 2015Stryker Trauma SaBone transport external fixation frame
US9220533Dec 9, 2014Dec 29, 2015Stryker Trauma SaExternal fixator system
US9320638 *Feb 19, 2010Apr 26, 2016Cambfix LimitedFixator
US9642649May 19, 2011May 9, 2017DePuy Synthes Products, Inc.Orthopedic fixation with imagery analysis
US9675382Mar 13, 2014Jun 13, 2017DePuy Synthes Products, Inc.External bone fixation device
US9717527Aug 11, 2014Aug 1, 2017Stryker European Holdings I, LlcExternal fixator system
US9717528 *Mar 26, 2015Aug 1, 2017Stryker European Holdings I, LlcExternal fixator with Y strut
US9730730May 8, 2015Aug 15, 2017Stryker European Holdings I, LlcExternal fixator system
US9788861Apr 21, 2015Oct 17, 2017DePuy Synthes Products, Inc.External bone fixation device
US9808288 *May 2, 2014Nov 7, 2017Wright Medical Technology, Inc.Circular fixator system and method
US20040167530 *Feb 19, 2004Aug 26, 2004Hamel Ross JonathanCraniofacial fracture reduction assembly
US20090264883 *Jun 23, 2008Oct 22, 2009Stryker Trauma SaRadiolucent orthopedic fixation plate
US20100042102 *Oct 20, 2009Feb 18, 2010Synthes Usa, LlcCraniofacial Fracture Reduction Assembly
US20100087819 *Oct 7, 2009Apr 8, 2010Extraortho, Inc.Forward Kinematic Solution for a Hexapod Manipulator and Method of Use
US20110301610 *Feb 19, 2010Dec 8, 2011Cambfix LimitedFixator
US20150272624 *Mar 26, 2015Oct 1, 2015Stryker European Holdings I, LlcExternal fixator with y strut
US20160256194 *May 2, 2014Sep 8, 2016Wright Medical Technology, Inc.Circular fixator system and method
USRE40914Apr 5, 2001Sep 8, 2009Smith & Nephew, Inc.Orthopaedic fixation plate
CN100500116CFeb 20, 2004Jun 17, 2009新特斯有限责任公司Craniofacial fracture diaplasis assembly
DE742951C *Mar 13, 1942Dec 15, 1943Dr Raimund WittmoserVorrichtung zum Einrichten und Behandeln von Knochenbruechen, insbesondere langer Roehrenknochen
DE3000432A1 *Jan 8, 1980Jul 24, 1980Henri JaquetElement eines externen fixateurs fuer knochenfixation
EP0194187A1 *Feb 19, 1986Sep 10, 1986Jean-Marie HardyExternal fixation apparatus for orthopaedic use
WO1990011743A1 *Apr 3, 1990Oct 18, 1990Dynasplint Systems, Inc.Adjustable splint assembly
WO1991006253A1 *Oct 30, 1990May 16, 1991Fischer JuergenDevice for fixing a bone
WO1992007526A1 *Nov 2, 1990May 14, 1992Igor KlimovExternal bone fixing apparatus
WO1994028829A1 *Jun 3, 1994Dec 22, 1994Texas Scottish Rite Hospital For Crippled ChildrenDistractor mechanism for external fixation device
WO1999047060A1 *Mar 16, 1999Sep 23, 1999Smith & Nephew, Inc.Improved method for using an orthopaedic fixation device
U.S. Classification606/56
International ClassificationA61B17/62, A61B17/60
Cooperative ClassificationA61B17/62
European ClassificationA61B17/62