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WO1991006265A1 - Attelle de maintien pour les fractures osseuses - Google Patents

Attelle de maintien pour les fractures osseuses Download PDF

Info

Publication number
WO1991006265A1
WO1991006265A1 PCT/US1989/004880 US8904880W WO9106265A1 WO 1991006265 A1 WO1991006265 A1 WO 1991006265A1 US 8904880 W US8904880 W US 8904880W WO 9106265 A1 WO9106265 A1 WO 9106265A1
Authority
WO
WIPO (PCT)
Prior art keywords
limb
brace
cross
straps
elongate members
Prior art date
Application number
PCT/US1989/004880
Other languages
English (en)
Inventor
Peggy L. Thibodaux
Original Assignee
Thibodaux Peggy L
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thibodaux Peggy L filed Critical Thibodaux Peggy L
Priority to US07/854,660 priority Critical patent/US5286249A/en
Priority to PCT/US1989/004880 priority patent/WO1991006265A1/fr
Publication of WO1991006265A1 publication Critical patent/WO1991006265A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
    • A61F5/0102—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
    • A61F5/0123—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations for the knees
    • A61F5/0125—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations for the knees the device articulating around a single pivot-point
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
    • A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
    • A61F5/05—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for immobilising
    • A61F5/058—Splints
    • A61F5/05841—Splints for the limbs

Definitions

  • the present invention relates to a brace for external fixation of bone fractures. More particularly, the present invention relates to an apparatus for external fixation of a fracture of a long bone of a limb which is conveniently applied, allows access to a wound, and is comfortable to wear.
  • the braces used for fixation of the humerus provide an example of how such braces can be improved.
  • the first is a hinged, cylindrical shell made of plastic with a soft liner.
  • the Sarmiento brace is a cylindrical shell with a strap or cup over the shoulder to keep the brace from sliding down the arm. Neither allows air circulation and/or wound management and hygiene without removal. Both are problematical if the fracture is near the ends of the humerus. Further, neither is adjustable for patients with fat/muscle structures different from those of the idealized patients for whom these braces are made and supplied. For these, and other, reasons, it is an object of the present invention to provide an improved brace for external fixation of long bone fractures.
  • an apparatus for external fixation of a fracture of a long bone of a limb comprising firs... and second substantially rigid elongate members having straps affixed to each end and about the midpoint thereof for encircling the limb and holding the elongate members thereto when tightened, the straps at the ends of the elongate members being positioned above and below the fracture.
  • the ends of the first elongate member and the approximate midpoint of the second elongate member are provided with flexible cross-arms which are bent by tightening the respective strap so as to be closely applied to the external surface of the limb, thereby cooperating with the straps to resist relative movement of the fractured bone above and below the fracture.
  • the cross-arm at the midpoint and the cross-arms at the ends of the elongate members are of sufficient length to interlap.
  • Figure 1 is a perspective view of a preferred embodi ⁇ ment of a brace constructed in accordance with the present invention being worn on the upper arm of a patient.
  • Figure 2 is an enlarged, exploded perspective view of the brace of Fig. 1.
  • Figure 3 is a sectional view of the brace of Fig. 1, taken at the point designated by the line 3-3 in Fig. 2.
  • Figure 4 is an exploded, perspective view of another preferred embodiment of a brace constructed in accordance with the present invention.
  • Figure 5 is a perspective view of another preferred embodiment of a brace constructed in accordance with the present invention that has been modified by the addition of a shoulder cup for use in connection with a fracture near the proximal end of the humerus.
  • Figure 6 is a perspective view of another preferred embodiment of a brace constructed in accordance with the present invention that is used either in connection with fractures of both the humerus and the radius or ulna or in connection with a fracture near the distal end of the humerus or the proximal end of the radius or ulna.
  • long bone is used to denote those bones of the skeletal system which are elongated in their general shape.
  • Such bones at least in humans, generally include the bones of the limbs, e.g., the arms and legs, and specifically, the femur, radius, ulna, humerus, tibia or fibula.
  • the apparatus of the present invention is of particular utility for external fixation of fractures of the femur and humerus, both of which are long bones, but by that statement, it is not intended to so restrict the application of this apparatus.
  • Fig. 1 shows a presently preferred embodiment of the apparatus, indicated generally at reference numeral 10, on the upper arm 12 of a patient, e.g., in use for external fixation of a fracture of the humerus of the patient.
  • the apparatus 10 is comprised generally of first and second substantially rigid elongate members 14 and 16, respec ⁇ tively, straps 18, 20, and 22, and flexible cross-arms 24, 26, and 28.
  • the top and bottom straps 18 and 22, respec ⁇ tively, are affixed to first and second elongate members 14 and 16 at the respective ends 30 and 32 thereof, and middle strap 20 is affixed at about the midpoint of first and second elongate members 14 and 16.
  • the flexible cross-arms 24 and 28 are also located at the ends 30 and 32 of elongate members 14 and 16, cross-arm 26 being located at about the midpoint.
  • First and second elongate members 14 and 16 are com ⁇ prised of a material which is substantially rigid in the direction parallel to the bone to be braced.
  • each of the elongate members 14 and 16 is preferably comprised of spaced bars 34 joined at the ends 30 and 32 to provide an opening 36 therebetween.
  • the elongate members 14 and 16 are curved on an axis parallel to that of the long bone to be braced so " as to allow a close fit to the limb when applied thereto.
  • the bars 34 may be comprised of metal, rigid plastic, or other material which is padded at least on those surfaces which contact the limb when applied thereto.
  • the presently preferred material for construction of elongate members 14 and 16 is plastic which is covered by a layer of closed cell foam padding (not shown) .
  • the foam padding is preferably a water based, modified vinyl nitrile foam about 1 mm thick, applied to elongate members 14 and 16 by dipping, spraying, or adhering sheets of the foam to the elongate members 14 and 16.
  • the foam padding may be covered (to allow passage of air and water vapor) with, for instant, nitrogen-blown rubber.
  • Other materials which are appropriate for use as the foam padding include cross-linked polyethylene and any of several commercially available ethylene-vinyl acetate copolymers.
  • the foam can also be applied to the elongate members 14 and 16 by molding (either poured or injected) the foam and then adhering the foam to the elongate members 14 and 16.
  • foam can also be applied to the elongate members 14 and 16 by molding (either poured or injected) the foam and then adhering the foam to the elongate members 14 and 16.
  • Such materials are all radiolucent in character, allowing the limb to be X-rayed without removing the apparatus 10.
  • the preferred plastic comprising elongate members 14 and 16 is injection moldable polypropylene.
  • the straps 18, 20 and 22 are riveted (the rivets are shown at reference numeral 38 in Figs. 1, 2 and 4) or otherwise affixed to elongate members 14 and 16.
  • straps 18, 20, and 22 encircle the limb (the upper arm 12 in Fig. 1) of the patient and hold the first and second elongate members 14 and 16 securely thereto when tightened.
  • the straps 18 and 22 are positioned above and below the fracture point in the bone of the limb when elongate members 14 and 16 are secured to the limb.
  • the straps 18 and 22 are provided with
  • VELCRO TM hooks 39 and the ends 30 and 32 of second elongate member 14 are provided with a strip of VELCRO TM loops 41, just as the straps 20 are provided with hooks 39 and the approximate midpoint of first elongate member 16 is provided with loops 41, for securing the apparatus 10 to the limb of the patient as shown in Fig. 1. That same result is achieved by using the D-loops 40 affixed to the ends 30 and
  • Flexible cross-arms 24 and .28 are, as described above, located at each end of the first elongate member 14 and flexible cross-arm 26 is located at about the midpoint of second elongate member 16.
  • Cross-arms 24, 26, and 28 are, as shown in Fig. 2, curved on the same axis as the curve of elongate members 14 and 16, e.g., the axis of the bone to be braced. However, the radius of that curve is larger than the radius of curvature of the elongate members 14 and 16 to allow the apparatus 10 to be used on limbs having an ex ⁇ tremely wide range of sizes and shapes.
  • Each of the cross-arms 24, 26, and 28 is bent by the tightening of the respective strap 18, 20, and 22 so as to be closely applied to the external surface of the limb, thereby cooperating with the straps 18, 20, and 22 to resist movement of the fractured bone above and below the fracture in all directions, e.g., to "fix" the bone externally of the limb.
  • the load applied to the limb is concentrated over a smaller area than the load applied by known braces so that the load which is applied is more effective, allowing a decrease in the overall load that is used to accomplish the fixation of the bone.
  • the elongate members 14 and 16 are preferably comprised of plastic which is rigid along the longitudinal axis thereof.
  • plastic is used as the material comprising members 14 and 16
  • the cross-arms 24, 26, and 28 are integral with respective members 14 and 16 and the longitudinal rigidity and radial flexibility de ⁇ scribed above is achieved by using plastic of different thicknesses as shown in Figs. 2, 3, and 4.
  • integral, spaced metal bars 34 comprising first and second elongate members 14 and 16 having piano hinges between the elongate members 14 and 16 and the respective cross-arms 24, 26, and 28.
  • the ends 46 of the respective cross-arms 24, 26, and 28 need only be able to rotate with respect to a point located on the arc representing the radius of curvature of first and second elongate members 14 and 16 to conform to the shape of the limb when the straps 18, 20, and 22 are tightened around the limb.
  • the ends 46 of cross-arms 24, 26, and 28 move in the direction of the arrows 48 (see Figs. 2 and 4) according to whether straps 18, 20, and 22 are tight or loose.
  • first and second elongate members 14 and 16 can be viewed as being I-shaped and cross-shaped members, respectively. In that manner, movement of the fractured bone above and below the fracture is more effectively resisted in all directions.
  • elongate members 14 and 16 are pre ⁇ ferably comprised of a pair of spaced bars 34 joined at the ends 30 and 32 thereof. This configuration allows access to the limb through the opening 36 for hygiene, surgical intervention, or wound management without removing the apparatus 10 from the limb.
  • the embodiments shown in Figs. 5 and 6 are characterized by the same advantages, and have been modified for specific uses. For instance, first elongate member 14' has been provided with an integral shoulder cup 50, thereby adapting the apparatus 10' shown in Fig. 5 for use in connection with a fracture at the extreme proximal end of the humerus.
  • each of the elon ⁇ gate members 14' ' , 14' ' ' and 16' ' , 16' ' ' of the apparatus 10'' shown in Fig. 6 is provided with an integral extension 52 mounted to a hinge 54, the axis of hinge 54 concentric with the axis of the elbow 56.
  • Modification of the appara ⁇ tus 10 in the manner shown in Fig. 6 adapts the apparatus 10 for use in connection with a fracture at (1) the extreme distal end of the humerus, (2) the extreme proximal end of either the radius or ulna, or (3) both locations (1) and (2) .

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

Attelle externe servant à maintenir en place les os longs fracturés et comportant un élément en forme de 'I' et des éléments allongés en forme de croix, qui sont tous les deux courbés sur un axe longitudinal afin qu'ils s'adaptent au membre atteint, et qui s'engagent l'un dans l'autre afin d'assurer un maintien circonférentiel. La configuration courbée et divisée en deux concentre la charge appliquée au membre sur une surface plus petite et peut donc immobiliser plus efficacement l'os fracturé tout en permettant l'accès à la peau pour le traitement des plaies, pour la chirurgie et pour l'hygiène, sans enlever l'attelle. La configuration permet également un réglage de l'attelle à trois endroits séparés afin de permettre une adaptation améliorée par rapport aux configurations existantes à des membres de dimensions différentes.
PCT/US1989/004880 1989-10-31 1989-10-31 Attelle de maintien pour les fractures osseuses WO1991006265A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US07/854,660 US5286249A (en) 1989-10-31 1989-10-31 Brace for fixation of bone fractures
PCT/US1989/004880 WO1991006265A1 (fr) 1989-10-31 1989-10-31 Attelle de maintien pour les fractures osseuses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1989/004880 WO1991006265A1 (fr) 1989-10-31 1989-10-31 Attelle de maintien pour les fractures osseuses

Publications (1)

Publication Number Publication Date
WO1991006265A1 true WO1991006265A1 (fr) 1991-05-16

Family

ID=22215338

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1989/004880 WO1991006265A1 (fr) 1989-10-31 1989-10-31 Attelle de maintien pour les fractures osseuses

Country Status (1)

Country Link
WO (1) WO1991006265A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383844A (en) * 1992-09-21 1995-01-24 Smith & Nephew Donjoy, Inc. Humeral fracture brace
US5395307A (en) * 1993-02-09 1995-03-07 Fan; Lidi Elastic bandage
DE202008008562U1 (de) * 2008-06-19 2009-10-29 Brillinger Gmbh + Co. Kg Orthese für den Schutz des Ellenbogengelenks
US7618386B2 (en) * 2004-07-22 2009-11-17 Nordt Development Co., Llc Two-component compression collar clamp for arm or leg
US7878998B2 (en) * 2004-07-22 2011-02-01 Nordt Development Co., Llc Wrist support
US8287538B2 (en) 2008-01-14 2012-10-16 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US8906022B2 (en) 2010-03-08 2014-12-09 Conventus Orthopaedics, Inc. Apparatus and methods for securing a bone implant
US8961518B2 (en) 2010-01-20 2015-02-24 Conventus Orthopaedics, Inc. Apparatus and methods for bone access and cavity preparation
US9730739B2 (en) 2010-01-15 2017-08-15 Conventus Orthopaedics, Inc. Rotary-rigid orthopaedic rod
US10022132B2 (en) 2013-12-12 2018-07-17 Conventus Orthopaedics, Inc. Tissue displacement tools and methods
US10299952B2 (en) 2008-04-11 2019-05-28 Nordt Development Co., Llc Supports including dual pivot axes for hinge joint
US10918426B2 (en) 2017-07-04 2021-02-16 Conventus Orthopaedics, Inc. Apparatus and methods for treatment of a bone

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031021C2 (de) * 1980-08-16 1982-09-02 Oskar Thum Flektionskorsett für die menschliche Lendenwirbelsäule
US4393866A (en) * 1981-07-16 1983-07-19 Alan Finnieston Tibia brace
US4436088A (en) * 1981-09-08 1984-03-13 Alan Finnieston Upper arm brace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031021C2 (de) * 1980-08-16 1982-09-02 Oskar Thum Flektionskorsett für die menschliche Lendenwirbelsäule
US4393866A (en) * 1981-07-16 1983-07-19 Alan Finnieston Tibia brace
US4436088A (en) * 1981-09-08 1984-03-13 Alan Finnieston Upper arm brace

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383844A (en) * 1992-09-21 1995-01-24 Smith & Nephew Donjoy, Inc. Humeral fracture brace
US5395307A (en) * 1993-02-09 1995-03-07 Fan; Lidi Elastic bandage
US5624391A (en) * 1993-02-09 1997-04-29 Fan; Lidi Elastic bandage
US7993296B2 (en) * 2004-07-22 2011-08-09 Nordt Development Co., Llc Collar clamp apparatus
US7618386B2 (en) * 2004-07-22 2009-11-17 Nordt Development Co., Llc Two-component compression collar clamp for arm or leg
US7878998B2 (en) * 2004-07-22 2011-02-01 Nordt Development Co., Llc Wrist support
US9517093B2 (en) 2008-01-14 2016-12-13 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US11399878B2 (en) 2008-01-14 2022-08-02 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US10603087B2 (en) 2008-01-14 2020-03-31 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US9788870B2 (en) 2008-01-14 2017-10-17 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US8287538B2 (en) 2008-01-14 2012-10-16 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US10299952B2 (en) 2008-04-11 2019-05-28 Nordt Development Co., Llc Supports including dual pivot axes for hinge joint
DE202008008562U1 (de) * 2008-06-19 2009-10-29 Brillinger Gmbh + Co. Kg Orthese für den Schutz des Ellenbogengelenks
US9730739B2 (en) 2010-01-15 2017-08-15 Conventus Orthopaedics, Inc. Rotary-rigid orthopaedic rod
US9848889B2 (en) 2010-01-20 2017-12-26 Conventus Orthopaedics, Inc. Apparatus and methods for bone access and cavity preparation
US8961518B2 (en) 2010-01-20 2015-02-24 Conventus Orthopaedics, Inc. Apparatus and methods for bone access and cavity preparation
US9993277B2 (en) 2010-03-08 2018-06-12 Conventus Orthopaedics, Inc. Apparatus and methods for securing a bone implant
US8906022B2 (en) 2010-03-08 2014-12-09 Conventus Orthopaedics, Inc. Apparatus and methods for securing a bone implant
US10022132B2 (en) 2013-12-12 2018-07-17 Conventus Orthopaedics, Inc. Tissue displacement tools and methods
US10076342B2 (en) 2013-12-12 2018-09-18 Conventus Orthopaedics, Inc. Tissue displacement tools and methods
US10918426B2 (en) 2017-07-04 2021-02-16 Conventus Orthopaedics, Inc. Apparatus and methods for treatment of a bone

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