ES2352720A1 - Dispositivo de fijacion de tornillo prisionero y tulipa autoblocante. - Google Patents

Dispositivo de fijacion de tornillo prisionero y tulipa autoblocante.

Info

Publication number
ES2352720A1
ES2352720A1 ES200900207A ES200900207A ES2352720A1 ES 2352720 A1 ES2352720 A1 ES 2352720A1 ES 200900207 A ES200900207 A ES 200900207A ES 200900207 A ES200900207 A ES 200900207A ES 2352720 A1 ES2352720 A1 ES 2352720A1
Authority
ES
Spain
Prior art keywords
tulip
screw
translation
self
machine
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.)
Granted
Application number
ES200900207A
Other languages
English (en)
Other versions
ES2352720B1 (es
Inventor
Cosias German Perez
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.)
Surgival Co S A
Original Assignee
Surgival Co S A
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 Surgival Co S A filed Critical Surgival Co S A
Priority to ES200900207A priority Critical patent/ES2352720B1/es
Publication of ES2352720A1 publication Critical patent/ES2352720A1/es
Application granted granted Critical
Publication of ES2352720B1 publication Critical patent/ES2352720B1/es
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped

Landscapes

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

Abstract

Dispositivo de fijación de tornillo prisionero y tulipa autoblocante. Destinado a unir una varilla (2) a un soporte, comprende una tulipa (3) que presenta en su parte superior una ranura diametral (4) susceptible de recibir la varilla (2), definiendo esa ranura diametral (4) en la tulipa (3) dos brazos (5) roscados interiormente con un perfil de rosca de ángulo de ataque negativo, destinados a recibir un tornillo prisionero (6). Un tornillo de fijación (9) al soporte presenta una cabeza esférica (8) que queda retenida en un cuello (7) que, a estos efectos se dispone en la tulipa (3). Al apretar el tornillo prisionero (6) contra la varilla (2) se provoca el cierre por flexión de los brazos (5) de la tulipa (3) sobre el propio tornillo prisionero (6), bloqueando su giro.
ES200900207A 2009-01-26 2009-01-26 Dispositivo de fijación de tornillo prisionero y tulipa autoblocante. Expired - Fee Related ES2352720B1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES200900207A ES2352720B1 (es) 2009-01-26 2009-01-26 Dispositivo de fijación de tornillo prisionero y tulipa autoblocante.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200900207A ES2352720B1 (es) 2009-01-26 2009-01-26 Dispositivo de fijación de tornillo prisionero y tulipa autoblocante.

Publications (2)

Publication Number Publication Date
ES2352720A1 true ES2352720A1 (es) 2011-02-09
ES2352720B1 ES2352720B1 (es) 2011-12-30

Family

ID=43557981

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200900207A Expired - Fee Related ES2352720B1 (es) 2009-01-26 2009-01-26 Dispositivo de fijación de tornillo prisionero y tulipa autoblocante.

Country Status (1)

Country Link
ES (1) ES2352720B1 (es)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19912364A1 (de) * 1999-03-19 2000-10-12 Peter Brehm Pedikelschraube
US20020138076A1 (en) * 2000-12-27 2002-09-26 Biederman Motech Gmbh Screw
US20060025771A1 (en) * 2000-08-23 2006-02-02 Jackson Roger P Helical reverse angle guide and advancement structure with break-off extensions
US20060064089A1 (en) * 2004-09-07 2006-03-23 Jackson Roger P Bone screw closure having domed rod engaging surface
US20060079893A1 (en) * 2000-08-23 2006-04-13 Jackson Roger P Threadform for medical implant closure
ES2276539T3 (es) * 1998-11-09 2007-06-16 Warsaw Orthopedic Inc. Rosca de angulo inverso para impedir el aflojamiento en dispositivos medicos.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2276539T3 (es) * 1998-11-09 2007-06-16 Warsaw Orthopedic Inc. Rosca de angulo inverso para impedir el aflojamiento en dispositivos medicos.
DE19912364A1 (de) * 1999-03-19 2000-10-12 Peter Brehm Pedikelschraube
US20060025771A1 (en) * 2000-08-23 2006-02-02 Jackson Roger P Helical reverse angle guide and advancement structure with break-off extensions
US20060079893A1 (en) * 2000-08-23 2006-04-13 Jackson Roger P Threadform for medical implant closure
US20020138076A1 (en) * 2000-12-27 2002-09-26 Biederman Motech Gmbh Screw
US20060064089A1 (en) * 2004-09-07 2006-03-23 Jackson Roger P Bone screw closure having domed rod engaging surface

Also Published As

Publication number Publication date
ES2352720B1 (es) 2011-12-30

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