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WO1994027514A1 - Appareil de fixation externe d'une osteosynthese - Google Patents

Appareil de fixation externe d'une osteosynthese Download PDF

Info

Publication number
WO1994027514A1
WO1994027514A1 PCT/BG1993/000008 BG9300008W WO9427514A1 WO 1994027514 A1 WO1994027514 A1 WO 1994027514A1 BG 9300008 W BG9300008 W BG 9300008W WO 9427514 A1 WO9427514 A1 WO 9427514A1
Authority
WO
WIPO (PCT)
Prior art keywords
holes
tubular body
thin
fixator
radial
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/BG1993/000008
Other languages
English (en)
Inventor
Stanislav Georgiev Nestorov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/BG1993/000008 priority Critical patent/WO1994027514A1/fr
Publication of WO1994027514A1 publication Critical patent/WO1994027514A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors

Definitions

  • the invention refers to the field of medical technic, namely orthopaedics and traumatic surgery, external fixation apparatuses in particular.
  • a disadvantage of this construction is the robust and havy frame and the less secure fitting made through the joint of the bolt and the smooth sphere surface of the screw or the transfixating pin, which are of one and the same rigidness and have a small contact area.
  • the invention task is to create a remote osteosynthesis fixator with compact and technological design, providing fast and reliable axial fixation, easy mounting in fracture optimal places - allowing fast immobilization of moving fragments and pain syndrome elimination, that is especially important upon:
  • a remote osteosynthesis fixator comprising of a carrier, containing radial holes for fixing the bone screws.
  • the carrier is moulded as a thin-wall tube, containing a tubular body in itself.
  • radial holes in the thin-wall tube (at least four), being at equal distance one from another, and in the tube front end, parallel to the longitudinal carrier axis, a longitudinaloblong opening is shaped; the oblong opening is in interaction with a limiting pin.
  • the latter is fixed to the compact tubular body front end.
  • External threading is shaped on tubular body opposite end, and there are at least four diametrical holes in alignment with the thin-wall tube radial holes, along its whole length.
  • the external tubular body threading is ininteraction with
  • fixator advantages in accordance with the invention find expression in the following: /1 /The simple technical solution of the fixing mechanism allows to quickly make synthesis of one or more fragments by screwing of only one nut, and, by this, making surgical equipment function easier, shortening the time of operation. /2/The compact design allows its quick reproducing with various overall dimensions, complying with all anatomic dimensions of motor limbs tubular bones. /3/By making it with various hole diameters the fixator is able to use transfixing pins or bone screws with diameter from 1 ,5 mm up to 6,0 mm, which actually covers the whole range of standard external fixators synthesis implants.
  • the fixator can be mounted as unilateral - regular one, by means of bone screws, or doubled, in bilateral frame configuration when transfixing pins "KIRSCHNER” or “STEINEMANN” type are used, which extends possibility for operator - traumatic surgeon choice.
  • /5/The fixator is made from duraluminium, with anode overllay and is exceptionally light and strong.
  • the remote osteosynthesis fixator consists of a carrier (fig.1 ) shaped as a thin-wall tube 1 , containing a tubular body 2 in itself. There are radial holes 3 (with pitch M) in the thin-wall tube; an oblong opening 5 is shaped parallel to the longitudinal carrier axis 4 at the thin-wall tube front end; this opening is drilled between external surface 6 and internal surface 7 of the thin-wall tube 1 , and there is a limiting pin 8 in this opening being capable to move along the whole length of the longitudinal channel 5.
  • the limiting pin is fixed at the front end of compact tubular body 2.
  • External threading 9 is shaped at the other end of the tubular body, and along its whole length there are at least four diametrical holes 10 (having also pitch M); when the fixator is ready for manipulations these four holes are in alignment with the radial, holes 3 of thin-wall tube 1 , and upon fixing of diametrical holes 10 in tubular body 2, they are moved towards the radial holes in direction of nut 1 2 internal threading 1 1 , at a distance 0,5 of the diameter of holes 3 and 10, with purpose of comprising a wider spectrum of bone screws having intermediate diameters.
  • the external threading 9 of tubular body 2 is concentrical screwed on the internal threading 1 1 of nut 1 2 by the help of hexahedron 13 in such a way that before fixing between the inner frontal surface 14 of drive nut 1 2 and the rear frontal surface 1 5 of thin-wall tube 1 , there exists clearance 1 6.
  • Upon screwing up of nut 1 2 its frontal surface 14 is in contact with frontal surface 1 5 of tube 1 , necessary for straight-line movement along the axis of
  • Next manipulation refers to consecutive insertion and mounting via radial 3 and diametrical 10 holes of bone screws 1 7, using fixator openings as drives upon preliminary manually repositioned fracture.
  • After final manual fragments repositioning begins screwing up of nut 1 2 with a purpose of simultaneous tightening of all bone screws 1 7, whose mutual parallelism in a row upon installation is guaranteed by alignment of holes 3 and 10.
  • Examplary performance of the fixator in versions for various anatomical dimensions of mounted tubular bones is shown on fig.2, 3, 4, 5 and 6, enclosed to this presentation.

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)
  • Surgical Instruments (AREA)

Abstract

Stabilisateur de chirurgie traumatique et d'orthopédie pour os tubulaires longs. Sa compacité et sa simplicité poussée à l'extrême permettent l'immobilisation rapide de fragments d'os mobiles. Le stabilisateur comporte un support consistant en un tube à parois minces (1) percé de trous radiaux (3) contenant un corps tubulaire compact (2) percé de trous diamétraux (10), et des broches (17) maintenues dans les trous (3, 10) par des éléments à filetage (9, 12).
PCT/BG1993/000008 1993-06-02 1993-06-02 Appareil de fixation externe d'une osteosynthese Ceased WO1994027514A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/BG1993/000008 WO1994027514A1 (fr) 1993-06-02 1993-06-02 Appareil de fixation externe d'une osteosynthese

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BG1993/000008 WO1994027514A1 (fr) 1993-06-02 1993-06-02 Appareil de fixation externe d'une osteosynthese

Publications (1)

Publication Number Publication Date
WO1994027514A1 true WO1994027514A1 (fr) 1994-12-08

Family

ID=3923290

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BG1993/000008 Ceased WO1994027514A1 (fr) 1993-06-02 1993-06-02 Appareil de fixation externe d'une osteosynthese

Country Status (1)

Country Link
WO (1) WO1994027514A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0845245A3 (fr) * 1996-11-22 1998-07-29 Howmedica GmbH Broche médullaire verrouillable à ouvertures réglables pour vis de verrouillage
FR2984723A1 (fr) * 2011-12-27 2013-06-28 Xavier Renard Systeme pour faciliter la fixation d'un porte-broche sur un os
US20160038184A1 (en) * 2014-08-11 2016-02-11 Zimmer, Inc. External fixation
US20170042577A1 (en) * 2007-10-31 2017-02-16 Wright Medical Technology, Inc. Orthopedic implant
US9924969B2 (en) 2012-09-04 2018-03-27 Zimmer, Inc. External fixation
US10010348B2 (en) 2012-09-04 2018-07-03 Zimmer, Inc. External fixation
US11134988B2 (en) 2015-06-17 2021-10-05 Zimmer, Inc. Ankle fixation system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997466A (en) * 1934-04-23 1935-04-09 Harry Herschel Leiter Surgical appliance
WO1992015258A1 (fr) * 1991-03-05 1992-09-17 Trade-Coop, Ipari Szövetkezeti Kereskedo^'ház Bt. Appareil de contention externe jetable autoretenu et sollicite destine specialement a la reparation de grands os tubulaires fractures a la suite d'une lesion traumatique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997466A (en) * 1934-04-23 1935-04-09 Harry Herschel Leiter Surgical appliance
WO1992015258A1 (fr) * 1991-03-05 1992-09-17 Trade-Coop, Ipari Szövetkezeti Kereskedo^'ház Bt. Appareil de contention externe jetable autoretenu et sollicite destine specialement a la reparation de grands os tubulaires fractures a la suite d'une lesion traumatique

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6004324A (en) * 1996-11-22 1999-12-21 Howmedica Gmbh Adjustable locking nail
EP0845245A3 (fr) * 1996-11-22 1998-07-29 Howmedica GmbH Broche médullaire verrouillable à ouvertures réglables pour vis de verrouillage
US20170042577A1 (en) * 2007-10-31 2017-02-16 Wright Medical Technology, Inc. Orthopedic implant
US9993267B2 (en) * 2007-10-31 2018-06-12 Wright Medical Technology, Inc. Orthopedic implant
FR2984723A1 (fr) * 2011-12-27 2013-06-28 Xavier Renard Systeme pour faciliter la fixation d'un porte-broche sur un os
US10433873B2 (en) 2012-09-04 2019-10-08 Zimmer, Inc. External fixation
US9924969B2 (en) 2012-09-04 2018-03-27 Zimmer, Inc. External fixation
US10905469B2 (en) 2012-09-04 2021-02-02 Zimmer, Inc. External fixation
US10010348B2 (en) 2012-09-04 2018-07-03 Zimmer, Inc. External fixation
US20160038184A1 (en) * 2014-08-11 2016-02-11 Zimmer, Inc. External fixation
US10543019B2 (en) 2014-08-11 2020-01-28 Zimmer, Inc. External fixation
US9962187B2 (en) * 2014-08-11 2018-05-08 Zimmer, Inc. External fixation
US11134988B2 (en) 2015-06-17 2021-10-05 Zimmer, Inc. Ankle fixation system

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