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Publication numberUS2391537 A
Publication typeGrant
Publication dateDec 25, 1945
Filing dateSep 27, 1943
Priority dateSep 27, 1943
Publication numberUS 2391537 A, US 2391537A, US-A-2391537, US2391537 A, US2391537A
InventorsRoger Anderson
Original AssigneeRoger Anderson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ambulatory rotating reduction and fixation splint
US 2391537 A
Images(4)
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Description  (OCR text may contain errors)

Dec. 25, 1 945. R. ANDERSON AMBULATORY ROTATING REDUCTION AND FIXATION SPLINT Filed Sept 7, 1945 4 Sheets-Sheet 1 INVENTOR R0652 4-01J0n *QV'MM ATTORNEY Dec. 25, 1945..

R.ANDERSON AMBULATORY ROTATING REDUCTION AND FIXATION SPLINT Filed Sept. 27, l943 4 SheetsSheet 2 l Hlllilllll'lll INVENTOR R0651? fl/vozeao/v WM ATTORNEY Dec. 25, 1945. R. ANDERSON AMBULATORY ROTATING REDUCTION AND FIXATION SPLINT 4 Sheets-Sheet 5 Filed Sept. 27, 1945 INVENTOR R0652 fluoz/esan BY C211 ATTORNEY Dec. 25, 1945. R, ANDERSON 2,

AMBULATORY ROTATING REDUCTION AND FIXATIQN SPLINT Filed Sept. 27, 1943 4 Sheets-Sheet 4 INVENTOR 9065,? fi/vofzwon BY v 4 ATTORNEY Patented Dec. 25, 1945 AMBULATORY ROTATING REDUCTION AND FIXATION SPLINT Rog er Anderson, Seattle, Wash.

Application September 27, 1943, Serial No. 503,943

7 Claims.

This invention relates to improvements in ambulatory fracture reduction and immobilization splints and it has reference more particularly to splints employing a rigid extension bar for bridging the fracture and with transfixion units at the ends of the bar for fixed securement to the fracture fragments for their manipulation and immobilization during the period of healing of the fracture; it being the principal object of this invention to provide an ambulatory splint of the above stated kind that provides for the manual setting of the fracture, by accepted clinical methods, through aid of mechanical means which permits relative rotation of the fracture fragments on their anatomical axis and enables the operator to retain physical contact with the fracture and a personal touch in the reducing action to substantially the same extent as in the setting of a fracture by hand.

It is also an object of this invention to provide a splint of the type above stated whereby mechanical traction, or extension, may be applied to the fracture by adjustment in the length of the bar; which splint serves also as a fixation device that is especially useful in the treatment of fractures of the femur and humerus in that it is possible to free certain joints embodied therein for relative rotation of the fracture fragments on the anatomical axis of the fractured bone.

Still another object of the invention is to provide a splint that is especially suited for the manual setting of a fracture under X-ray observation, with extension force maintained mechanically while the fracture fragments are manually brought into opposition and while actual contacting of the fragments is manually accomplished.

More specifically stated, the objects of this invention are to be found in the provision of a light, durable and relatively small splint, having the provisions and advantages as above stated, and comprising a pair of fixation units for securement to the fragments at opposite sides of a fracture, and an adjustable extension bar for joining the units; each fixation unit comprising two or more trans-fixions, adapted to have their inner ends applied to a fragment, and their outer end portions to be fixedly secured to a rigid mounting bar; the bars of the two units being joined through special joints, to the opposite end portions of the adjustable extension bar.

Other objects of the invention are to be found in the use of jointed mountings, for the fixation units, adapted. to be loosened to provide for relative adjustment of the units in a noval manner for rotation of the fracture fragments on their anatomical axis, and for correction of angulation and alinement thereof. Also, providing for the rigid fixation of the parts by the clampin of the joints, thus to immobilize a fracture.

Still further objects of the present invention reside in those details of construction of the vari- 0115 parts that permits the units to be adjusted relative to each other for reduction of the fracture, and then to be held in fixed relationship to retain the fracture immobilized after a reduction has beenmade.

Inaccomplishing 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, wherein Fig. 1 is a perspective View of a splint embodied by the present invention, illustrating it as applied to a fractured bone for the reduction of the fracture and the immobilization of the fra ments.

Fig. 1A is a perspective of one of the pivot clamp assemblies, withparts thereof separated for better illustration and understanding of their features.

Fig. 1B is a sectional detail of the preferred type of pin clamp.

Fig. 2 is a top View of the splint as applied in Fig. 1, with parts broken away and others in section for better illustration.

Fig. 3 is a cross section on line 3-3 in Fig. 2.

Fig. 4 is a cross section on line 4-4 in Fig. 2.

Fig. 5 is a cross section on line 5-5 in Fig. 2.

Fig. 6 is an end view of the splint illustrating the character of the jointed mounting for the fixation unit through which rotation of a fracture fragment on its anatomical axis is made possible.

Fig. 7 is a perspective viewof a splint of an alternative form of construction, also providing for rotation of a fragment on its anatomical axis.

Fig. 8. is an end view of the splint of Fig. '7, shown partly in section.

Fig. 9 is a horizontal section on line 9--9 in Fig. 8. r

Fig. 10 is a perspective view of a splint of a modified form.

Fig. 11 is an enlarged detail showing of one of the forms of rod clamps employed in the structures.

Referring more in detail to the drawings The splint, in one of its present preferred forms of construction, shown in Fig. 1, comprises the two fixation units which are designated in their entireties, respectively, by reference charhas a bore therethrough, as seen in Fig. 113,

to loosely receive the rod to which it may be applied when the clamp is loosened; the collar being split at one side of the bore to permit it to loosen its hold on the rod. Applied through the split end portion of each of the clamp collars, is a clamping bolt l2 formed at one end with a relatively large, flat head l2. On the other end of the bolt shank, a. nut I3 is threaded and'adapt ed to be tightened against the collar to clamp it on the rod. This bolt is of special construction and serves, as will presently be explained, for holding one of the transfixion pins.

It is a feature of the transfixion units that the bolts [2, when loosened in the collars, are freely rotatable therein, the reason for this presently being apparent. v

Mounted by each of the clamps H is a transfixion pin 5. Each pin is rigid and has a sharpened point at one end whereby to facilitate its being applied through the bone. The outer end of the pin, preferably, is blunt and this end portion is adjustably aflixed to one of the clamps II. To provide for the mounting of the pins and for their rigid fixation to the clamps, each of the bolts I2 is formed, diametrically therethrough and just beneath the head portion thereof, with a hole that is just slightly greater in diameter that the diameter of the pin so that the latter will fit loosely therein when initially applied.

Prior to the assembling of these parts of the transfixion units, two or'more pins 5 are applied to each of the fracture fragments, pref- The extension bar and associated parts forming the unit, which is designated in its entirety by reference character C, comprises two straight lengths of metal tubing 20 and 2|. These are of rectangular cross section, and the part 20 is telescopically adjustable within the part 2|, as will be understood best by reference to Fig. wherein it is shown that the inner end portion of the tube 20 is closed by an end wall 22, and at a distance spaced therefrom, it has a partition wall 23 fixed therein. It is also shown that the outer end of tube 2| is closed by an end wall 24.

The telescopic adjustment of the tubular sections 20 and 2| is effected by rotation of an adjusting shaft 25 that is contained within the telescoped portions of the tubes and which passes 1 tion of the shaft 25 is threaded and threaded erably in non-parallel relationship andv not necessarily in the same plane, with the point portions of the pins just through the opposite cortex as shown in Fig. 1. Then, for each unit, a corresponding number of clamps II are loosely applied to a rod l0, andthe outer ends of the pins are slipped through the holes IT in the clamp bolts l2; it beingunderstood that since the clamps l are freely rotatable on the rods I0 and are slidable therealong, and since the bolts l2 also are freely rotatable in the clamps when the nuts l3 are loosened, the parts may be assembled in the manner shown in Fig. 1, or corresponding thereto regardless of the location of the pins or regardless of their particular relationship to each other, and it is not required that the pins of the same unit shall be in the same' plane or applied to the bone from the same side.

After the parts have thus been loosely assembled, they are then adjusted to a practical relationship in view of their use in the splint, and the nuts l3 are drawn tight on the bolts l2, thus to secure the clamps fixedly to the bars l0 and at the same time to draw the bolt heads tightly against the pins l5 and hold them rigid. When the bolts are thus tightly clamped, all parts of the transfixion unit will form a perfectly rigid unit through which the position of the bone fragment may be controlled, its adjustment for reduction effected, and the fragment immobilized,

thereon is a nut 32 which is located within the tube 20 between the end wall 22 and the partition wall 23. At opposite sides of the nut 32 coiled springs 34--34 are applied about the shaft, and these bear against the nut 32 and against the walls 22 and 23 respectively. The nut is square and fits slidably in the tube, but is held against rotation therein. Therefore, when the 1 them effect the adjustment, but they permit of a certain desired yielding and eliminate any perfectly solid and hard contacts.

The fixation units A and B are functionally mounted, respectively, on the telescopically associated sections 2| and 22 of the extension bar by jointed means of special form which will not be described:

First, by reference to Figs. 1 to 4, it will be noted that a split bracket collar '36 is applied about the tube 2 I, and is adapted for adjustment lengthwise thereon, and to be held at a set position of adjustment by a clamp bolt 31 through the split end of the bracket. The bracket has a laterally extending post or stud 40 fixed rigidly therein, and

' applied to this stud is a split clamp collar 42.

Likewise, applied to an end portion of the rod In of the transfixion unit A, is a split clamp bar having a stud or post 46 fixed solidly therein at one end. A clamping bolt 41 is applied through the split end of bar 45 whereby to draw it tightly about and clamp it rigidly on the rod I0. Applied to the post 46 is a split clamp collar 48 and a clamp bolt 50 is extended through the split ends of clamp collars 42 and 48, which are disposed in face to face contact on the bolt. When the clamp bolt is tightened, it draws both clamp collars tight about their respective studs or posts 40 and 46.

Mounted rigidly on the outer end of the tubular section 20 of the extension rod, is a head formed with a flat end surface lying in a plane that is perpendicular to the tube axis, as will be observed in Fig. 5. Rotatably fitted against this surface is a shoe or block 6|; the parts 60 and 6| being held in assembled relationship by a bolt 62 that is applied in the axial line of the tube, as understoodby reference to Fig. 5. When the bolt is loosened, the shoe 6i may rotate freely on the bolt; this rotation being indicated in Fig. 6.

The block 6| has a base flange 65 formed with a horizontal cross slot or channel 66 in which two pairs of guide rollers 61 are mounted and between which paired rollers, a rod 68 is held for guided endwise movement. This rod extends in a plane that is perpendicular to the axial line of the extension rod, and its opposite end portions extend beyond the base flange of the block, one end being equipped With a collar 69 in which a pin 10 is fixed to serve as a sort of handle whereby to rotate the rod, and at its other end, the rod has a pivoted and jointed connection with the transfixion unit B, as will presently be described, which permits the fragment held by the unit B to be rotated on its axis without loss of extension or change in angulation.

As a means of holding the rod 68 against rotation or endwise movement in its guides when such is desired, I provide a split collar clamp 15 through which the rod extends, as noted in Fig. 5. This clamp is contained in a socket 16 formed through the base flange 65 of the block and the bolt 62 which secures the shoe or block to the head, passes through the split end of this clamp collar. Therefore, when the bolt 62 is loosened, the rod 68 may rotate and also may slide freely in an endwise direction within the clamp collar 15. At the same time, the shoe is free to rotate on the bolt. Likewise, when the bolt 62 is tightened, it holds the shoe against rotation on the head and also holds the rod against rotation or endwise movement.

The jointed and pivoted means used herein for aifixing the rod 68 to the transflxion unit B in a manner whereby to permit the rotation of the fragment mounted by that unit on its anatomical axis, comprises a clamp bar 11 that is applied to the end portion of the rod H) of unit B. This clamp, as shown in Fig. 1, comprises a bar that has a hole 18 to receive the rod l6, and is split at one side of the hole, as at 19. A pin clamp bolt 86 is extended through the solid end of the bar. This bolt, which is like the bolts l2 already described, serves to mount a transfixion pin l which is applied to the adjacent fragment.

Applied about the near end of the laterally adjustable rod 68 is a clamp collar 8| that, when loosened, is freely rotatable on the rod but is held from displacement from the rod by a collar or head 82 at its end. Associated with the clamp collar 8|, is a similar collar 83 and, as seen in Fig. 1, a bolt 84 extends horizontally through these collars on which they are freely rotatable when the bolt is loosened. Both clamp collars are rendered rigid with respect to each other and to the rod 68 when the bolt is tightened; the bolt having a nut 85 threaded thereonto for this tightening purpose.

A vertical bolt 96 extends rotatably through the base of split clamp collar 83 and through the end portion of a clamp bar 71. A spacing collar 92 is applied to bolt 96 between parts 83 and TI and on the lower end of this bolt, as seen in Fig. 6, is a nut 94 for tightening the parts to render them relatively rigid. As noted in Fig. 1A, the lower end portion of the bolt 96 is squared to fit within a squared opening as at 90a in the clamp collar. Thus, when the nut 94 is tightened, the bolt 96, collar 86, rod l0 and clamp collar 83 ofunit B will be relativelyrigid, and when bolt 84 is loosened, the unit B can ivot on bolt 84.

Assuming that the parts of the splint are assembled as in Fig. 1, and that the fixation units have been applied to the fracture fragments X and 6 as illustrated in Fig. l, the technique in the use of the splint for the reduction and immobilization of a fracture would be as follows:

First, assuming that the transfixion pins l5, as required, have been applied to the fracture fragments and the parts of the units A and B have been properly assembled with the pins as previously explained, and the clamp bolts l2" drawn tight, to render the parts of each unit relatively rigid, the clamp bars 45 and 11 are then applied to the end portions of the round rods In of the units A and B, and then with the clamp bolt 31 of the bracket 36 loosened, and the bracket slidable on the bar 2|, and with bolts 50 and 84 loosened, the clamp collar 48 is applied to the post 46 on the bar 45, and the squared lower end of the clamp bolt 90 is applied through and secured in the clamp bar 11; it being understood that when the parts are initially assembled in this manner, the various clamping bolts are loosened so that the parts of the splint may be located in the desired or most practical position, and for adapting it to the size of bone or character of the fracture.

When this adjustment has been accomplished then the clamp nuts 50' and are tightened, thus rendering all parts of the splint relatively rigid.

If the ends of the fragments should be overlapped and out of alinement, they may then be brought into proper apposition by extension and by rotation of a fragment if required. Extension may be easily accomplished by rotation of the adjusting shaft 25; this being done through the mediacy of a Wrench applied to the wrench head 36 at the end of shaft 25. After the desired extension has been accomplished, the fragment ends may be brought into apposition by manipulation, or rotation, or both, which may be accomplished by taking direct hold of the units A and B, or in some instances, it is preferred that a handle, as indicated at 99 in Fig. 1, be temporarily affixed to the bar in of the unit B to give more leverage. For this manipulation, one or both of the bolts 56 and 84 might be loosened. and this may be dome without loss of traction.

Assumingthe fragments have been brought into proper extension and that it should be desired to rotate the fragment Y about the anatomical axis of the bone to effect proper alinement and registration of the fractured parts, this may be accomplished in the manner which has been illustrated in Fig. 6. With the pivot bolt 62 loosened, it will be apparent that the head 6| can pivot on the bolt, and that rod 68 can move endwise. It will then be evident that since the unit B, supporting the fragment Y, can pivot about bolt 84, and the head 6| can pivot on bolt 62 and the rod 68 can move endwiseto a farther or less extended position, rotation of the fragment can be effected while holding extension and without displacing the rotated fragment out of axial alinement with fragment X. Rotation may be in either direction and to any extent desired.

In Fig. 6, I have illustrated the longitudinal shifting of the rod 68 incident to rotation of the fragment Y in the direction of the arrow adjacent thereto; this shifting being necessary to permit rotation without displacing the rotated fragment Y from alinement with the fragment X. It will be understood upon inspection of Fig. '6, that any degree of rotation will be permitted, due to the rotation of the block 6| on pivot bolt 62, and that the rod 68 will slide in or outof its guideway in accordance with requirements, yet will retain the extension or traction. After parts have been rotated to proper relationship, the bolts 62 and 84 are tightened tohold the fracture immobilized.

In Figs. 7, 8 and 9, I have illustrated an alternative form of splint for accomplishing the same results as are possible by the device of Fig. 1. In this form of device, units A and C are like those previously described except as hereinafter noted, and have been given the same reference numerals where they apply. However, at the end of bar 20, in lieu of those parts previously described as required to take care of rotation, a bracket I has been fixed, and this-has an arm IOI outwardly offset from alinement with bar 20;

as shown best in Fig. 8, and this arm has a flat inner face I02 lying in a plane that is parallel with the axis of bar 26, and disposed flatly against this face is a head- I95 held pivotally thereagainst by a pivot bolt I06.

The head I65 mounts an arcuate segment bar I08 therein for guided endwise adjustment about its center of curvature. The segment, as seen in Fig. 9, is arcuately curved about a center that would be in the approximate axial center of the bone being treated, and it is toothed along its outer edge as at H0, and a small gear III is mounted on a shaft II2 rotatably mounted in the head. On the shaft is a hand wheel H3 for rotating the gear to move the segment endwise. Fixed to the segment is a bracket II5 formed with a rod guide H6 in which a rod H1 is longitudinally slidable and held at set positions by a clamp screw I20. The rod II! is equipped at its outer end with a clamp block H8 for mounting the bar III of the fixation unit B. The rod II! is adjustable endwise toward or from the axial line of the bone to which unit B is applied, and it may be rotated and held in fixed adjustmentby tightening the bolt I I6.

In the use of the type of splint shown in Fig. '7, the fixation units A and B are applied to the fragments as before explained. Then the bar unit C is assembled therewith, and endwise adjustment of rod II! is made to accommodate the splint to the size of the patient or character of fracture. Extension may then be effected by turning nut 30, and rotation may be effected by endwise adjustment of the arcuate segment by means of hand wheel H3. After adjustment, the parts may be locked against relative movement by tightening the bolts I66, I20 and 50. i

In Fig. 10, I have shown a device of a modified form which embodies all p the functions of the splint of Figs. 1 and 7 except that of rotation. In this splint, units A and B are like those already described, and unit C is the same with the exception that the bracket 36 is fixed solidly-to one end of tube section 20. The extension of tube 20 is effected by means like that already described through the turning of a wrench head.-

With this splint, as seen in Fig. 10, extension is possible and reduction is facilitated, and after reduction, the parts may be rigidly clamped to insure fixation during the healing period.

In Figs. 1 and 11 I have shown a special type of clamp bar that is of special utility in this splint, and while it has not been shown as applied to all parts where it could be used, it is desirable on such parts-as the handle 99 or on the bar This clamp comprises a base jaw I50 formed at its end with a semi-cylindrical transverse seat 'I5l. A movable jaw I52 has a supporting end portion I53 fulcrumed in a cylindrically curved transverse seat I54. in the base jaw. At its other end, the piece I52 has a cylindrically curved seat I55. The seats I5I and I54 have a radius of curvature slightly less than the diameter of the round rod II) that is to be gripped and the relationship of seat I55 to I 5| is such that the seated rod ID will have three lines-of engagement, as understood by reference to Fig. 11. A clamp bolt I58 is extended through the top jaw and is threaded into the base Jaw.

It is understood that in use of this splint, which is more particularly an ambulatory splint, the extension bar of unit C will lie close to the limb and generally within the end limits of the fractured bone. It can be used, however, to span a joint, such as from above to below the knee, and its use is facilitated due to the fact that it can be accommodated to transfixion pins applied in any way or from any side of the bone.

Both ends of the extension bar might be equipped with the rotation unit if such should be desired,

Splints of this character provide for the mechanical reduction of a fracture by devices tl'uough which personal touch can be retained in the operation. Fractures may be easily. reduced and immobilized during a healing period.

The particular advantage of the splints disclosed are that they are small, compact, light in weight, easy to manipulate and serve ,both for reduction and immobilization. Furthermore, it is ossible to rotate the fragments in their anatomical axes. The splints of Figs. 1 and 7 provide for the rotation of the fracture fragment held by the unit 13 about its anatomical axis and without loss of extension or position. This, to my knowledge, is not possible by use of any other splint of this particular type.

Having thus described my invention, what I claim as new therein and desire to secure by Letters Patent is:

1; An ambulatory splint comprising a rigid extension bar of adjustable length, for bridging a bone fracture, closely along the outside of the limb, transfixion units equipped for rigid securement, respectively, to the fracture fragments, mountings on the bar for the functional fixation of the units thereto, and means for effecting and retaining an adjustment in length of the bar whereby to establish and retain a definite extension of the fracture; said mountings including joints adapted to be loosened for alining or for changing angulation of the fragments, and one of the mountings being laterally extendable or retractable and having a hinge joint therein with an axis parallel to the said rigid bar'to provide for rotation of the corresponding fragment on the anatomical axis without change in the extension of the bone.

2. An ambulatory splint comprising a rigid extension bar for bridging a bone fracture closely along the outside of a limb parallel with the anatomical axis, transfixion units equipped for rigid securement, respectively to the fracture fragments, mounting for affixing the units to the bar; one of the said mountings including a rod extended laterally from the bar, a hinge joint with hinge axis parallel with the anatomical axis connecting the outer end of the rod and the corresponding transfixion unit, and clamp means securing the rod, to the bar for radial adjustment about the bar axis and change in its length of extension therefrom, and means for locking the joint and for locking the clam-p means to hold the rod rigidly at a set position.

3. An ambulatory splint comprising a rigid extension bar of telescopically associated sections, for bridging a bone fracture close to a limb, fixation units includin means for their rigid securement, respectively, to the fracture fragments; mountings for the fixation units rigidly joining them tothe bar sections; and means for relatively adjusting the bar sections in an end- Wise direction to determine and retain the extension of the fracture; said mountings being individually adjustable for the alining of fragments or change in their angulation; the mounting on one unit including a rod extending laterally from the bar, and a guide clamp therefor permitting its radial adjustment about the bar axis, and adjustment in its extended length, and joints connecting the rod at its outer end with a fixation unit permitting rotation of the corresponding fragment on the anatomical axis and change in angulation of fragments without loss of extension, and means for locking the adjustable parts against relative movement after an adjustment has been made.

4. A splint as recited in claim 3 wherein each fixation unit comprises a rod a pair of transfixion pins for transfixing a bone fragment and releasable, pin clamps adjustable along and rotatable on the rod and functionally applicable to the pins in any angular relationship at which they may be applied to the fragment.

5. A splint as recited in claim 3 wherein each fixation unit comprises a round rod, a plurality of independent pin clamps adjustable along and around the rod, a transfixion pin mounted by each clamp, and means in each pin,clamp for tightening it on its rod and. for securing the pin therein.

6. An ambulatory splint including a rigid, telescopic extension bar of adjustable length, for

bridging a bone fracture parallel with the anatomical axis, transfixion units designed for rigid securement, respectively, to the fracture fragments, mountings on the bar ends for the rigid securement of the transfixion units thereto; said mountings including jointed parts permitting adjustment in alinement or angulation of fragments for reduction of the fracture, and one of said mountings including a rod extending laterally of the bar, a guide clamp mounting the said rod on the bar for its axial rotation and for radial movement about the bar axis and for adjustment in its extended length, and jointed parts connecting the said rod and one of the transfixion units permitting rotation of the corresponding fragment on the anatomical axis while retaining it in alinement with the other fragment, means for locking the guide clamp and the adjustable mountings for the units and the jointed parts to fix all parts of the splint in rigid relationship for immobilization of the fracture.

'I. An ambulatory splint comprising an extension bar of telescopic sections for bridging a fracture, an adjusting screw connecting the sections and operable to change the effective length of the bar and for retaining an adjustment, transfixion units equipped for rigid securement to the fracture fragments for the reduction and immobilization of the fracture, mountings for said units on the bar sections including jointed parts releasable for the alining of the fragments and' correction of their angulation in the reduction of a fracture, a rod guide member mounted on one end of the bar for turning about a pivot axis parallel with the bar axis; a rod mounted in said guide member and extending laterally of the bar and adapted for endwise adjustment therein, and a hinge joint at the outer end of the rod mounting the corresponding transfixion unit for rotation of the fragment on the anatomical axis without loss of extension of the bone.

ROGER ANDERSON.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3985127 *Jun 11, 1975Oct 12, 1976Mstislav Vasilievich VolkovApparatus for surgical treatment of the knee joint
US4006740 *Jul 8, 1975Feb 8, 1977Mstislav Vasilievich VolkovSurgical apparatus for external transosteal fixation of bone fragments and joint ends
US4244360 *Oct 22, 1979Jan 13, 1981Ace Orthopedic Manufacturing, Inc.Orthopedic fixation pin holder
US4271832 *Jul 20, 1979Jun 9, 1981National Research Development CorporationPost-fracture stability of limbs
US4273116 *Jun 26, 1979Jun 16, 1981Claude ChiquetDevice for external fixation of bone fragments
US4299212 *Sep 7, 1978Nov 10, 1981Nederlandsch Central Organisatie voor Toegepast-Natuurwetenschappelijk OnderzoekExternal fracture immobilization splint
US4308863 *Oct 18, 1979Jan 5, 1982Ace Orthopedic Manufacturing, Inc.External fixation device
US4349017 *Apr 2, 1979Sep 14, 1982Sayegh Antoine YOrthopaedic apparatus
US4386603 *Mar 23, 1981Jun 7, 1983Mayfield Jack KDistraction device for spinal distraction systems
US4393868 *Feb 20, 1981Jul 19, 1983Ace Orthopedic Manufacturing Inc.Colles fracture fixature device
US4456004 *Jul 21, 1981Jun 26, 1984Kenny Charles HFracture holding
US4483334 *Apr 11, 1983Nov 20, 1984Murray William MFor securing bone segments
US4488542 *Nov 16, 1982Dec 18, 1984Per HellandExternal setting and correction device for the treatment of bone fractures
US4502473 *Aug 2, 1982Mar 5, 1985National Research Development Corp.Apparatus for external fixation of bone fractures
US4541422 *Dec 9, 1982Sep 17, 1985Zbikowski JuanFunctional attachment system for osteosynthesis
US4570625 *Oct 19, 1984Feb 18, 1986National Research Development CorporationApparatus for external fixation of bone fractures
US4612921 *Jun 26, 1985Sep 23, 1986Lazo De Zbikowski JuanExternal fixation system for osteosynthesis
US4621627 *Jan 18, 1985Nov 11, 1986Orthofix S.R.L.External axial fixation device
US4662365 *Dec 1, 1983May 5, 1987Ortopedia GmbhDevice for the external fixation of bone fragments
US4693240 *Apr 12, 1985Sep 15, 1987National Research Development CorporationOrthopaedic fracture fixation apparatus
US4730608 *Mar 5, 1986Mar 15, 1988Schlein Allen PExternal bone-anchoring fixator
US4815455 *Sep 21, 1987Mar 28, 1989Research And Education Institute, Inc. Harbor-Ucla Medical CenterPelvic disruption reduction enabling device
US4823781 *Jul 2, 1987Apr 25, 1989Buchanan William JMethod and apparatus for percutaneous fracture reduction and fixation
US4978348 *May 26, 1988Dec 18, 1990Ilizarov Gavriil ACompression-distraction apparatus for osteosynthesis
US4998935 *Aug 3, 1990Mar 12, 1991Dietmar PennigFoot supporting extension for external fixation units
US5053034 *Oct 26, 1990Oct 1, 1991Sven OlerudSpinal joint
US5152280 *Dec 20, 1989Oct 6, 1992Confida S.A.SBone support device
US5203783 *May 8, 1991Apr 20, 1993Haerle AntonOsteosynthetic fixation and force transmitting apparatus
US5275599 *Dec 18, 1992Jan 4, 1994Zbikowski Juan LBiocompression external fixator for osteosynthesis
US5320623 *Jul 15, 1992Jun 14, 1994Orthofix S.R.1.Clamping coupling for an external fixator
US5372597 *May 12, 1993Dec 13, 1994Smith & Nephew Richards, Inc.Supination-pronation device
US5451225 *Feb 2, 1994Sep 19, 1995Texas Scottish Rite Hospital For Crippled ChildrenFastener for external fixation device wires and pins
US5478340 *Jan 28, 1993Dec 26, 1995Kluger; PatrickVertebral column implant and repositioning instrument
US5545162 *Feb 15, 1995Aug 13, 1996Huebner; Randall J.External fixator for repairing fractures of distal radius and wrist
US5578038 *Jun 6, 1994Nov 26, 1996Slocum; D. BarclayJig for use in osteotomies
US5601551 *Mar 1, 1995Feb 11, 1997Smith & Nephew Richards, Inc.Geared external fixator
US5620442 *May 12, 1995Apr 15, 1997Bailey; Kirk J.Method and apparatus for external fixation of small bones
US5624440 *Jan 11, 1996Apr 29, 1997Huebner; Randall J.Compact small bone fixator
US5630814 *Jun 2, 1995May 20, 1997Texas Scottish Rite Hospital For Crippled ChildrenFastener for external fixation device wires and pins
US5653707 *Nov 1, 1994Aug 5, 1997Smith & Nephew Richards, Inc.External skeletal fixation system with improved bar-to-bar connector
US5658283 *Sep 17, 1996Aug 19, 1997Huebner; Randall J.Of a bone
US5662649 *Apr 22, 1996Sep 2, 1997Huebner; Randall J.External fixator for repairing fractures of distal radius and wrist
US5662650 *May 12, 1995Sep 2, 1997Electro-Biology, Inc.Method and apparatus for external fixation of large bones
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
US5746741 *May 6, 1996May 5, 1998Tufts UniversityExternal fixator system
US5766173 *May 25, 1995Jun 16, 1998Texas Scottish Rite Hospital For ChildrenDistractor mechanism for external fixation device
US5846245 *Oct 20, 1995Dec 8, 1998New York UniversityBone-adjusting device
US5921985 *Feb 10, 1998Jul 13, 1999Texas Scottish Rite HospitalExternal fixation device and method
US5951556 *Apr 2, 1997Sep 14, 1999Orthofix S.R.L.Compact external fixation device
US5961515 *Mar 1, 1995Oct 5, 1999Smith & Nephew, Inc.External skeletal fixation system
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
US5976133 *Apr 23, 1997Nov 2, 1999Trustees Of Tufts CollegeExternal fixator clamp and system
US5976134 *Feb 5, 1998Nov 2, 1999Huebner; Randall J.External fixator for repairing fractures
US5976136 *May 11, 1998Nov 2, 1999Electro Biology, Inc.Method and apparatus for external bone fixator
US6001097 *Jan 10, 1997Dec 14, 1999Jaquet Orthopedie S.A.Fracture reducing apparatus
US6019769 *Aug 27, 1998Feb 1, 2000New York University And Howmedica, Inc.Bone-adjusting device
US6024745 *May 20, 1998Feb 15, 2000Orthofix, S.R.L.External minisplint device
US6102911 *Feb 11, 1998Aug 15, 2000Orthofix S.R.L.Orthopaedic apparatus, particularly for the surgical correction of bone deformities
US6129727 *Mar 2, 1999Oct 10, 2000Smith & NephewOrthopaedic spatial frame apparatus
US6162224 *May 25, 1999Dec 19, 2000Acumed, Inc.External fixator for repairing fractures of distal radius and wrist
US6171308Aug 25, 1997Jan 9, 2001Kirk Jay BaileyMethod and apparatus for external fixation of large bones
US6171309May 25, 1999Jan 9, 2001Acumed, Inc.External fixator for repairing fractures of distal radius and wrist
US6203548 *Jul 7, 1998Mar 20, 2001Prototech AsDistraction apparatus
US6235029 *Feb 11, 1998May 22, 2001Orthofix S.R.L.Orthopaedic device for the gradual correction of limbs
US6277118Jan 31, 2000Aug 21, 2001Electro-Biology, Inc.External fixator including an angular correction module and related method
US6277119 *Oct 21, 1999Aug 21, 2001Electro-Biology, Inc.External fixation system
US6340361Sep 2, 1999Jan 22, 2002Karl H. KrausExternal fixator clamp and system
US6428540Dec 28, 1999Aug 6, 2002Synthes (U.S.A.)Device for repositioning fractured bone fragments
US6491694 *Nov 4, 1997Dec 10, 2002Smith & Nephew, Inc.External fixator for distal radius fractures
US6500177Nov 17, 2000Dec 31, 2002Synthes (Usa)Telescopic body for an external fixation system
US6565564Dec 14, 2000May 20, 2003Synthes U.S.A.Multi-pin clamp and rod attachment
US6572616 *May 23, 2001Jun 3, 2003Fixus B.V.Fixing device for orthopedic applications
US6702814Feb 12, 2002Mar 9, 2004Ebi, L.P.Clamp assembly for an external fixation system
US6793655Nov 13, 2002Sep 21, 2004Smith & Nephew, Inc.External fixator for distal radius fractures
US7004943Jun 14, 2002Feb 28, 2006Smith & Nephew, Inc.Devices, systems, and methods for placing and positioning fixation elements in external fixation systems
US7041103Mar 28, 2003May 9, 2006Synthes (Usa)Multipin clamp and rod attachment
US7048735Feb 4, 2002May 23, 2006Smith & NephewExternal fixation system
US7147640Dec 10, 2003Dec 12, 2006Acumed LlcExternal fixator
US7261713Oct 7, 2002Aug 28, 2007Synthes (Usa)Adjustable fixator
US7311711 *Dec 21, 2002Dec 25, 2007Cole J DeanSurgical distractor frame
US7479142 *Oct 30, 2003Jan 20, 2009Millenium Medical Technologies, Inc.Method of fracture fixation
US7507240Mar 18, 2005Mar 24, 2009Ron Anthon OlsenAdjustable splint for osteosynthesis
US7575575Mar 18, 2005Aug 18, 2009Ron Anthon OlsenAdjustable splint for osteosynthesis with modular components
US7578822 *Apr 29, 2005Aug 25, 2009Warsaw Orthopedic, Inc.Instrument for compression or distraction
US7588571Mar 18, 2005Sep 15, 2009Ron Anthon OlsenAdjustable splint for osteosynthesis with modular joint
US7608074Jun 26, 2003Oct 27, 2009Smith & Nephew, Inc.External fixation apparatus and method
US7699848Mar 28, 2003Apr 20, 2010Synthes Usa, LlcMultipin clamp and rod attachment
US7731738Dec 9, 2005Jun 8, 2010Orthopro, LlcCannulated screw
US7736380Dec 21, 2005Jun 15, 2010Rhausler, Inc.Cervical plate system
US7758582Jun 10, 2003Jul 20, 2010Smith & Nephew, Inc.Device and methods for placing external fixation elements
US7828801 *Sep 3, 2004Nov 9, 2010A.M. Surgical, Inc.External fixation device for fractures
US7887537Jan 30, 2003Feb 15, 2011Smith & Nephew, Inc.External fixation system
US8137347Dec 15, 2008Mar 20, 2012Millennium Medical Technologies, Inc.Method of fracture fixation
US8262656 *Feb 13, 2009Sep 11, 2012A.M. Surgical, Inc.External fixation device for fractures
US8382755Jun 27, 2007Feb 26, 2013Smith & Nephew, Inc.External fixation apparatus and method
US8382757Jul 23, 2007Feb 26, 2013Synthes Usa, LlcAdjustable fixator
US8518039Jul 31, 2012Aug 27, 2013A.M. Surgical, Inc.External fixation device for fractures
US20090187189 *Feb 13, 2009Jul 23, 2009A.M. Surgical, Inc.External fixation device for fractures
US20120143190 *Nov 30, 2011Jun 7, 2012OrthoLan LLCOrthopedic fixation systems and methods
USRE40914Apr 5, 2001Sep 8, 2009Smith & Nephew, Inc.Orthopaedic fixation plate
DE2834891A1 *Aug 9, 1978Jan 3, 1980Synthes AgFixateur, um knochen oder knochenbruchstuecke, insbesondere wirbel, gegeneinander zu fixieren
DE2929455A1 *Jul 20, 1979Jan 31, 1980Secr Social Service BritEinrichtung zur fixierung der bruchenden von gebrochenen gliedmassenknochen
DE3229313A1 *Aug 5, 1982Feb 24, 1983Nat Res DevVorrichtung zur aeusseren fixierung gebrochener knochen
DE3244819A1 *Dec 3, 1982Jun 7, 1984Ortopedia GmbhVorrichtung zur externen fixierung von knochenfragmenten
DE3614305A1 *Apr 29, 1986Nov 12, 1987Baehr Geb Green Judith MExternal fixator
DE4136313A1 *Nov 4, 1991Feb 4, 1993Orthofix SrlAeussere axiale fixiervorrichtung
DE4136313C2 *Nov 4, 1991Jul 2, 1998Orthofix SrlÄußere axiale Fixiervorrichtung
EP0029298A1 *Oct 17, 1980May 27, 1981Ace Orthopedic Manufacturing, Inc.External fixation device, especially for bone fractures
EP0099289A1 *Jul 6, 1983Jan 25, 1984Ecole Nationale Superieure D'arts Et Metiers Centre De ParisFixation device for immobilizing long open fracture bones
EP0256984A2 *Aug 10, 1987Feb 24, 1988Jaquet Orthopedie S.A.External bone fixation device with biocompression
EP0499037A2 *Jan 15, 1992Aug 19, 1992Pfizer Hospital Products Group, Inc.Spinal fixator reduction frame
EP0624352A2 *Mar 17, 1994Nov 17, 1994SMITH & NEPHEW RICHARDS, INC.Supination-pronation device
EP0639352A1 *Aug 19, 1994Feb 22, 1995Alumedica Aluminium-Bearbeitung Medizintechnik GmbHBone treating device
EP0784962A1 *Dec 17, 1996Jul 23, 1997Jaquet Orthopedie S.A.Bone fracture reduction apparatus
EP1364620A1 *Mar 11, 2003Nov 26, 2003CITIEFFE S.r.l.External fixation system for treating bone fractures
WO1982002830A1 *Feb 18, 1982Sep 2, 1982Ace Orthopedic MfgColles fracture fixature device
WO1991005516A1 *Oct 23, 1989May 2, 1991Nii Radiofiziki ImApparatus for osteosynthesis
WO1991011150A1 *Jan 30, 1991Aug 8, 1991Sheffield City CouncilBone fixation
WO1996026678A1Feb 16, 1996Sep 6, 1996Harold S TaylorSpatial frame
WO1996026679A1Feb 16, 1996Sep 6, 1996Harold S TaylorGeared external fixator
WO1996026680A1Feb 16, 1996Sep 6, 1996Harold S TaylorExternal skeletal fixation system
WO1998015231A1Oct 7, 1997Apr 16, 1998Smith & Nephew IncMethod of adjusting orthopaedic or other fixator
WO2011114229A2 *Mar 18, 2011Sep 22, 2011Ben RBone distraction device
Classifications
U.S. Classification606/59
International ClassificationA61B17/60, A61B17/66
Cooperative ClassificationA61B17/66
European ClassificationA61B17/66