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WO2009140742A1 - Plaque d'implant orthopédique humain comportant des trous à deux vis - Google Patents

Plaque d'implant orthopédique humain comportant des trous à deux vis Download PDF

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Publication number
WO2009140742A1
WO2009140742A1 PCT/BA2009/000004 BA2009000004W WO2009140742A1 WO 2009140742 A1 WO2009140742 A1 WO 2009140742A1 BA 2009000004 W BA2009000004 W BA 2009000004W WO 2009140742 A1 WO2009140742 A1 WO 2009140742A1
Authority
WO
WIPO (PCT)
Prior art keywords
dshs
holes
hole
screws
new
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/BA2009/000004
Other languages
English (en)
Inventor
Adnan Dizdar
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
Publication of WO2009140742A1 publication Critical patent/WO2009140742A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/74—Devices for the head or neck or trochanter of the femur
    • A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
    • A61B17/746—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to a plate opposite the femoral head
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8605—Heads, i.e. proximal ends projecting from bone

Definitions

  • This invention relates to a change in the presently used implantation plates that contain standard holes used in a stabilization of bone fractures classified by the IPC (international patent classification) as A 61 B 17/58. In this way, we will introduce new holes that can be used for placement of two screws instead of one.
  • the plates with new holes offer several advantages.
  • the primary objective behind the application of the new hole with two screws is to improve stability of the broken bone structures (osteosynthesis - fixation of fractured bones). Its secondary objective is to achieve the lowest possible degree of impairment of vascularization of the periost due to reduced number of holes and inserted screws within an even segment of the bone contact area - which is not the case with the standard plates.
  • Another objective of the invention is to reduce a number of screws compared to the quantity used for standard plates. This would be done by relying on our own sense of expected stability between the plate and broken bone structure by selecting adequate types of screws.
  • An advantage of placing new holes in the proximal femur / thigh-bone is connecting structures that have insofar been impossible to fix using only the plate with standard condylar, angular or DHS plate.
  • Application of new holes in this segment helps us achieve a higher degree of stability of osteosynthesis since we would insert more screws within one smaller segment. This advantage is also evident in reduced level of surgical invasiveness, thus resulting in a smaller incision of the treated area (adhering to the minimum invasive surgery principle).
  • the first step in a practical application of the new holes in the human orthopedic implants is designing a new hip dynamic system called HDS / DSHS - Sa (Hip
  • this new holes type shall be used on a new CP / DSHS Sa (Condylar
  • the new hole as opposed to the conventional hole types, provides for the following options in insertion of smaller head screws:
  • a combination of a round and oval hole forming a specific shape of the DSHS/Sa hole provides a possibility of insertion of two screws through this single hole, which in turn ensures other, clearly practical options.
  • This hole shape has not been known to the surgical practice in the orthopedic-trauma segment, i.e. in the surgical segment of the ostheosynthesis process. It is for this particular reason that the new DSHS/Sa plate is to be viewed as a novelty in the current ostheosynthesis process.
  • This modified screw head required creating a new DSHS/Sa hole with a ball-shaped mill.
  • the DSHS/Sa hole enabling fixation of one screw vertically, while the other is inserted angularly through the same hole, provides for a so called divergent/angular stability of the fixation between the plate and the bone.
  • the DSHS/Sa plate is technically safer and stronger in terms of stability, which is unlike the types currently applied in the ostheosynthesis.
  • the DSHS/Sa hole also provides for a higher rate of stability than the holes applied so far in the ostheosynthesis. This is because of the two screws placed in divergent manner and because of the reduced number of screws used in the plate-to-the-bone fixation since we can now choose between six ways of placing the screws depending on the fracture type and on a personal experience of a surgeon.
  • the DSHS/Sa hole also reduces the damage rate of bone structures due to the reduced rate of drilling and burning involved in these structures.
  • the DSHS/Sa holes are offering in regions wider than the plates themselves relate mostly to the hip and knee regions, especially if applied in oblique positions to the plate. In this way, the plate would capture those bone parts that were not inaccessible through the conventional holes. For example, in a trochanteric hip region - we can achieve even better stability of a broken small trochanter or even additional stability of the lower part of the neck of the thigh bone (femur).
  • the invention of the DSHS/Sa holes and their application in the implants enable practical, useful and permanent change in a large number of human orthopedic implants.
  • AU types of implants applying the DSHS/Sa holes can be developed in the regular course of the implants manufacturing.
  • the inventor has decided for this new DSHS/Sa hole to be initially applied in a new design of the dynamic plate intended for fractures of a proximal femur region.
  • the invention's working title is HDS/Sa - Hip Dynamic Screw / Sarajevo.
  • new DSHS/Sa holes have a specific positioning in relation to the DHS plates.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (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

Selon l'invention, le nouveau type de trous appelé DSHS/Sa (système de trous à deux vis – Sarajevo) est utilisable pour l'ostéosynthèse humaine ou vétérinaire, c'est-à-dire le traitement de fractures de l'os par ostéosynthèse stable. Le trou DSHS/Sa ménagé dans ces plaques sert à mettre en œuvre un nouveau type d'ostéosynthèse qui permet de placer deux vis dans un seul trou, ce qui ouvre de nouvelles possibilités de stabilisation des fractures (figures 1, 2, 3, 4A et 5). Un procédé scientifique concernant son emploi en orthopédie et traumatologie humaines est mis en œuvre initialement par l'utilisation dynamique de la prothèse de hanche, sous l'intitulé DSHS/Sa R et L (figures 9 et 10). A une étape ultérieure du procédé, les trous DSHS/Sa seront appliqués à d'autres plaques dans le cadre de projets scientifiques détaillés (des dessins techniques feront l'objet d'une nouvelle demande d'agrément). Ces trous novateurs et des têtes de vis appropriées sont définis dans les dessins techniques (HDS/Sa - R et HDS/Sa - L) qui leur sont consacrés, ainsi que les formes variées des vis. Tel est le principe de l'invention, objet de la présente demande de brevet (figures 6, 7 et 8).
PCT/BA2009/000004 2008-05-21 2009-05-20 Plaque d'implant orthopédique humain comportant des trous à deux vis Ceased WO2009140742A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BA082643 2008-05-21
BABAP08643A 2008-05-21

Publications (1)

Publication Number Publication Date
WO2009140742A1 true WO2009140742A1 (fr) 2009-11-26

Family

ID=41087411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BA2009/000004 Ceased WO2009140742A1 (fr) 2008-05-21 2009-05-20 Plaque d'implant orthopédique humain comportant des trous à deux vis

Country Status (1)

Country Link
WO (1) WO2009140742A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2438870A1 (fr) 2010-10-07 2012-04-11 Instrumentaria d.d. Dispositif et système d'implant orthopédique
US9314283B2 (en) 2011-11-18 2016-04-19 DePuy Synthes Products, Inc. Femoral neck fracture implant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716050A (en) * 1971-02-11 1973-02-13 F Johnston Olecranon plate
FR2680673A1 (fr) * 1991-08-26 1993-03-05 Medical Op Dispositif de stabilisation d'un rachis notamment humain par voie posterieure.
US20070276383A1 (en) * 2006-05-11 2007-11-29 Rayhack L.L.C. Osteotomy system
WO2008007196A2 (fr) * 2006-07-07 2008-01-17 Precimed, S.A. Plaque vissée à trous complexes adjacents reliés par un espace de dégagement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716050A (en) * 1971-02-11 1973-02-13 F Johnston Olecranon plate
FR2680673A1 (fr) * 1991-08-26 1993-03-05 Medical Op Dispositif de stabilisation d'un rachis notamment humain par voie posterieure.
US20070276383A1 (en) * 2006-05-11 2007-11-29 Rayhack L.L.C. Osteotomy system
WO2008007196A2 (fr) * 2006-07-07 2008-01-17 Precimed, S.A. Plaque vissée à trous complexes adjacents reliés par un espace de dégagement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2438870A1 (fr) 2010-10-07 2012-04-11 Instrumentaria d.d. Dispositif et système d'implant orthopédique
US9314283B2 (en) 2011-11-18 2016-04-19 DePuy Synthes Products, Inc. Femoral neck fracture implant
US9662156B2 (en) 2011-11-18 2017-05-30 DePuy Synthes Products, Inc. Femoral neck fracture implant
US9999453B2 (en) 2011-11-18 2018-06-19 DePuy Synthes Products, Inc. Femoral neck fracture implant
US10507048B2 (en) 2011-11-18 2019-12-17 DePuy Synthes Products, Inc. Femoral neck fracture implant

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