WO1992014426A1 - Ensemble structurel de fixation externe ameliore - Google Patents

Ensemble structurel de fixation externe ameliore Download PDF

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Publication number
WO1992014426A1
WO1992014426A1 PCT/US1992/001345 US9201345W WO9214426A1 WO 1992014426 A1 WO1992014426 A1 WO 1992014426A1 US 9201345 W US9201345 W US 9201345W WO 9214426 A1 WO9214426 A1 WO 9214426A1
Authority
WO
WIPO (PCT)
Prior art keywords
eyelets
frame segment
frame
external fixation
holes
Prior art date
Application number
PCT/US1992/001345
Other languages
English (en)
Inventor
Frank M. Lewis
Linda M. Trebing
David F. Miller
Original Assignee
Danek Medical, Inc.
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 Danek Medical, Inc. filed Critical Danek Medical, Inc.
Publication of WO1992014426A1 publication Critical patent/WO1992014426A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
    • A61B17/62—Ring frames, i.e. devices extending around the bones to be positioned
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00902—Material properties transparent or translucent

Definitions

  • This invention relates in general to external fixation devices and more specifically fixator rings constructed of no metalli ⁇ base materials.
  • External fixation devices have been known for many years and are particularly useful in the treatment of bone fractures wherein repositioning and immobilization of the fractured bone are necessitated.
  • External fixation devices are orthopedic medical devices widely recognized as a viable means for treating fractures of the bones. Examples of such devices are shown in the patents to Fischer, U.S. Patent No. 4,308,863, Jaquet, U.S. Patent No. 4,365,624, and Alvarez Cambras, U.S. Patent No. 4,624,249.
  • the frame segments are made of light alloys such as aluminum or titanium.
  • Fischer suggests powdered metallurgy production techniques to minimize weight and provide maximum strength for the arcuate frame segments 12 and 12a disclosed therein.
  • Fischer suggests that stainless steel or titanium are equally applicable as raw materials for constructing the frame segments.
  • a frame segment for use in an external fixation system comprises a nonmetallic member having a plurality of through holes and a plurality of eyelets attached to and situated in each of said through holes.
  • One object of the present invention is to provide x-ray transparent or radiolucent structural components for an external fixation device.
  • Another object of the present invention is to reinforce and protect the wear areas of a frame segment forming a part of an external fixation system by attaching durable materials at locations wherein friction and contact with other structures of an external fixation system will occur.
  • FIG. 1 is a plan view of an arcuate frame assembly according to the present invention.
  • FIG. 2 is a perspective view of an eyelet used in the arcuate frame assembly of FIG. 1.
  • FIG. 3 is a cross-sectional view of the frame assembly of FIG. 1 looking in the direction of the arrows labeled 3.
  • the arcuate frame assembly 10 consists of arcuate frame segment 12 and eyelets 14.
  • the eyelets 14 are set into stepped holes on both sides of the arcuate frame segment 12 and equally spaced in a circle around the center of the segment.
  • the eyelets are mounted flush with surface A and surface B of frame segment 12.
  • a through hole 16 passes through the eyelets 14 and the frame segment 12.
  • the frame segment 12 is made of high strength, lightweight x-ray transparent materials such as carbon fiber composites.
  • the eyelets 14 are made of aluminum or other radiolucent materials.
  • the eyelets 14 provide increased strength and wear resistance at mounting hole locations wherein various hardware components of an external fixation system or device such as shafts, supports, rods and wires are attached.
  • the arcuate frame assembly 10 is used in conjunction with a variety of rods, bolts, wires and threaded shafts -(none of which are shown) to form an external fixation device which provides external frame support for positioning broken bones in held position while the bones heal.
  • rods, bolts, wires and threaded shafts -(none of which are shown) to form an external fixation device which provides external frame support for positioning broken bones in held position while the bones heal.
  • the eyelet 14 is shown.
  • eyelet 14 is circular in shape, other shapes such as square, elliptical, etc. are contemplated for eyelet 14.
  • FIG. 3 a cross section of the arcuate frame assembly 10 looking in the direction of the arrows 3 is shown.
  • the arcuate frame segment 12 receives the eyelets 14 into stepped holes provided by counterbores in the top surface
  • the counterbores are sized so that the eyelets 14 may be press-fitted into the counterbored holes of the frame segment
  • eyelets 14 may be glued to the arcuate frame segment using an adhesive. Large diameter 20 and small diameter 18 of eyelet 14 fit snugly within the counterbored hole 16 of frame segment 12. A threaded shaft (not shown) inserted in hole 16 and secured to frame assembly 10 by nuts
  • the aluminum eyelets hold fixation wires better than a steel washer used in conjunction with a steel frame segment because the aluminum eyelet 14 is a softer metal. Therefore the aluminum eyelets resist slipping of fixation wires mounted therein. Further, the aluminum eyelets 14 can be anodized to color code various available sizes of the arcuate frame assembly 10, thereby giving an orthopedic surgeon or medical practitioner "at a glance" information regarding the size of a particular arcuate frame assembly and which arcuate frame assemblies will mate with one another to provide a completed assembly which encircles a broken bone or limb of a patient.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

On décrit un ensemble structurel arqué (10) utilisé dans des dispositifs ou systèmes de fixation externe. L'ensemble structurel arqué (10) se compose d'un segment (12) structurel transparent aux rayons X, percé d'une multiplicité de trous (16) avec des logements cylindriques ménagés des deux côtés du trou (16) afin de recevoir un ÷illet d'aluminium (14). L'÷illet (14) est collé ou adapté de manière serrée dans le trou. Les ÷illets sont composés d'aluminium qui est un matériau transparent aux rayonnements. Ils présentent un codage de couleur produit selon des techniques d'anodisation d'aluminium afin de produire une variété de couleurs. La couleur des ÷illets (14) placés dans un élément particulier (10) indique la grandeur ou la forme de la structure (10), ce qui permet de déterminer d'un coup d'÷il quels ensembles arqués (10) sont destinés à s'assembler réciproquement pour former un ensemble circulaire entourant les membres d'un patient.
PCT/US1992/001345 1991-02-20 1992-02-20 Ensemble structurel de fixation externe ameliore WO1992014426A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US658,102 1984-10-05
US65810291A 1991-02-20 1991-02-20

Publications (1)

Publication Number Publication Date
WO1992014426A1 true WO1992014426A1 (fr) 1992-09-03

Family

ID=24639907

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/001345 WO1992014426A1 (fr) 1991-02-20 1992-02-20 Ensemble structurel de fixation externe ameliore

Country Status (2)

Country Link
AU (1) AU1443692A (fr)
WO (1) WO1992014426A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2110089A1 (fr) * 2008-04-18 2009-10-21 Stryker Trauma SA Plaque de fixation orthopédique
US8834467B2 (en) 2010-08-11 2014-09-16 Stryker Trauma Sa External fixator system
US8945128B2 (en) 2010-08-11 2015-02-03 Stryker Trauma Sa External fixator system
US9011438B2 (en) 2008-04-18 2015-04-21 Stryker Trauma Sa Radiolucent orthopedic fixation plate
US9101398B2 (en) 2012-08-23 2015-08-11 Stryker Trauma Sa Bone transport external fixation frame
US11141196B2 (en) 2010-08-11 2021-10-12 Stryker European Operations Holdings Llc External fixator system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596656A (en) * 1969-01-21 1971-08-03 Bernd B Kaute Fracture fixation device
US4127119A (en) * 1976-08-09 1978-11-28 Kronner Richard F Fracture reducing and joint immobilizing apparatus
US4338926A (en) * 1980-11-21 1982-07-13 Howmedica, Inc. Bone fracture prosthesis with controlled stiffness
US4620533A (en) * 1985-09-16 1986-11-04 Pfizer Hospital Products Group Inc. External bone fixation apparatus
US5057111A (en) * 1987-11-04 1991-10-15 Park Joon B Non-stress-shielding bone fracture healing device
US5062844A (en) * 1990-09-07 1991-11-05 Smith & Nephew Richards Inc. Method and apparatus for the fixation of bone fractures, limb lengthening and the correction of deformities

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596656A (en) * 1969-01-21 1971-08-03 Bernd B Kaute Fracture fixation device
US4127119A (en) * 1976-08-09 1978-11-28 Kronner Richard F Fracture reducing and joint immobilizing apparatus
US4338926A (en) * 1980-11-21 1982-07-13 Howmedica, Inc. Bone fracture prosthesis with controlled stiffness
US4620533A (en) * 1985-09-16 1986-11-04 Pfizer Hospital Products Group Inc. External bone fixation apparatus
US5057111A (en) * 1987-11-04 1991-10-15 Park Joon B Non-stress-shielding bone fracture healing device
US5062844A (en) * 1990-09-07 1991-11-05 Smith & Nephew Richards Inc. Method and apparatus for the fixation of bone fractures, limb lengthening and the correction of deformities

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8951252B2 (en) 2008-04-18 2015-02-10 Stryker Trauma Sa External fixation system
WO2009127663A3 (fr) * 2008-04-18 2009-12-10 Stryker Trauma Sa Plaque de fixation orthopédique
US7955334B2 (en) 2008-04-18 2011-06-07 Stryker Trauma Sa External fixation system
EP2110089A1 (fr) * 2008-04-18 2009-10-21 Stryker Trauma SA Plaque de fixation orthopédique
US9011438B2 (en) 2008-04-18 2015-04-21 Stryker Trauma Sa Radiolucent orthopedic fixation plate
US9730730B2 (en) 2010-08-11 2017-08-15 Stryker European Holdings I, Llc External fixator system
US9839445B2 (en) 2010-08-11 2017-12-12 Stryker European Holdings I, Llc External fixator system
US11141196B2 (en) 2010-08-11 2021-10-12 Stryker European Operations Holdings Llc External fixator system
US9220533B2 (en) 2010-08-11 2015-12-29 Stryker Trauma Sa External fixator system
US9717527B2 (en) 2010-08-11 2017-08-01 Stryker European Holdings I, Llc External fixator system
US8834467B2 (en) 2010-08-11 2014-09-16 Stryker Trauma Sa External fixator system
US10376285B2 (en) 2010-08-11 2019-08-13 Stryker European Holdings I, Llc External fixator system
US8945128B2 (en) 2010-08-11 2015-02-03 Stryker Trauma Sa External fixator system
US10080585B2 (en) 2010-08-11 2018-09-25 Stryker European Holdings I, Llc External fixator system
US10285734B2 (en) 2010-08-11 2019-05-14 Stryker European Holdings I, Llc External fixator system
US9820775B2 (en) 2012-08-23 2017-11-21 Styker European Holdings I, LLC Bone transport external fixation frame
US10405888B2 (en) 2012-08-23 2019-09-10 Stryker European Holdings I, Llc Bone transport external fixation frame
US11090086B2 (en) 2012-08-23 2021-08-17 Stryker European Operations Holdings Llc Bone transport external fixation frame
US9101398B2 (en) 2012-08-23 2015-08-11 Stryker Trauma Sa Bone transport external fixation frame
US11744616B2 (en) 2012-08-23 2023-09-05 Stryker European Operations Holdings Llc Bone transport external fixation frame

Also Published As

Publication number Publication date
AU1443692A (en) 1992-09-15

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