WO2008146982A1 - Système de vis iliaque - Google Patents

Système de vis iliaque Download PDF

Info

Publication number
WO2008146982A1
WO2008146982A1 PCT/KR2007/003486 KR2007003486W WO2008146982A1 WO 2008146982 A1 WO2008146982 A1 WO 2008146982A1 KR 2007003486 W KR2007003486 W KR 2007003486W WO 2008146982 A1 WO2008146982 A1 WO 2008146982A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixing
screw
rod
screw system
iliac
Prior art date
Application number
PCT/KR2007/003486
Other languages
English (en)
Inventor
Choon Sung Lee
Min Sik Shin
Jin Soon Kim
Original Assignee
Gs Medical Co., Ltd.
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 Gs Medical Co., Ltd. filed Critical Gs Medical Co., Ltd.
Publication of WO2008146982A1 publication Critical patent/WO2008146982A1/fr

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
    • A61B17/7041—Screws or hooks combined with longitudinal elements which do not contact vertebrae with single longitudinal rod offset laterally from single row of screws or hooks
    • 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
    • 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
    • A61B17/7038—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other to a different extent in different directions, e.g. within one plane only
    • 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
    • A61B17/7055—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant connected to sacrum, pelvis or skull
    • 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices

Definitions

  • the present invention relates to an iliac screw system, and more particularly, to an iliac screw system having improvement in the degree of freedom by facilitating coupling with a rod for liking spinal screws, without accurate alignment between the iliac screw system and the rod.
  • scoliosis is a disease causing vertebrae to be twisted and bent. If scoliosis is left as it is, a deformation of the vertebrae is advanced continuously, and severe deformity is ultimately caused by scoliosis. Due to the deformity, a complication such as a deformation of viscera and the like are caused, which makes it difficult to live daily life conveniently. This scoliosis can be completely recovered by mounting an assist device or performing a surgical operation according to a bent angle of the vertebrae.
  • the patient will live semi-permanently in a state where the spinal screw is implanted into the vertebrae.
  • the spinal screw implanted into a human body can be deformed or loosened by physical activities for a long time, so that the spinal screw may be separated and it is difficult to precisely correct the spine using the rod only supported to the spinal screw.
  • an auxiliary device for linking one end of the rod to an ilium i.e., a flat bone located at both ends of a sacral vertebra and at a rear of an ischium and having an unfolded fan shape.
  • an ilium i.e., a flat bone located at both ends of a sacral vertebra and at a rear of an ischium and having an unfolded fan shape.
  • the " ⁇ " shaped auxiliary device is integrally formed, a location of the auxiliary device cannot be changed once the auxiliary device is fixed to an ilium, so that there is a problem in that it is difficult to easily couple the rod to the auxiliary device unless the auxiliary device is precisely aligned with the rod.
  • An object of the present invention is to provide an iliac screw system in which a screw to be fixedly inserted in an ilium and a fixing unit for fixing a rod linking spinal screws are linked to each other through a linking member to allow an angle between the screw and the fixing unit to be adjusted, thereby making it easy to couple the iliac screw system and the rod.
  • an iliac screw system comprises a fixing unit having a rod-insertion hole formed at one side of a body of the fixing unit to receive a rod for linking a plurality of spinal screws in the rod-insertion hole, and a bar-shaped fixing shaft formed at the other side of the body thereof; a fixing bolt having a fixing shaft-insertion hole formed at one side of a body of the fixing bolt to receive the fixing shaft penetrating therethrough, a fixing recess opened at one side in a perpendicular direction with respect to the fixing shaft-insertion hole, and a threaded portion formed at the other side of the body thereof; a screw having a bolt- insertion hole formed at one side of a body of the screw to receive the threaded portion of the fixing bolt penetrating therethrough, and a threaded portion formed at the other side of the body thereof to be inserted into an ilium; a fixing nut to be fastened to the threaded portion of the fixing bolt
  • a fixing unit to be linked to a rod and a screw inserted into an ilium are linked to each other by a linking member to enhance a degree of freedom.
  • FIG. 1 is an exploded perspective view of an iliac screw system according to the present invention
  • FIG. 2 is a perspective view of the iliac screw system according to the present invention.
  • FIG. 3 is a view illustrating a state where the iliac screw system according to the present invention is linked to a spinal screw.
  • FIG. 1 is an exploded perspective view of an iliac screw system according to the present invention
  • Fig. 2 is a perspective view of an iliac screw system according to the present invention.
  • An iliac screw system according to the present invention comprises a fixing unit
  • a rod for linking spinal screws inserted into a spinal pedicle to each other for fixing a rod for linking spinal screws inserted into a spinal pedicle to each other; a screw 300 to be inserted into an ilium; a fixing bolt 200 for linking the fixing unit 100 and the screw 300 to each other; a fixing disc 210 for positioning the rod in the fixing unit 100; and a fixing nut 400 coupled to the fixing bolt 200 to fix the fixing unit 100 and the screw 300.
  • a rod- insertion hole 102 is formed in one side of a body of the fixing unit 100 to fix the rod, and a bar-shaped fixing shaft 104 for supporting the rod is formed in the other side of the body thereof.
  • the screw 300 has a bolt-insertion hole 302 bored through one side of a body thereof to receive the fixing bolt 200, a plurality of first fixing protrusions 304 are formed along an outer circumference of the bolt-insertion hole 302, and a threaded portion is formed on the other side of the body thereof in the longitudinal direction of the body to be inserted into an ilium.
  • the first fixing protrusions 304 are formed on both sides of the bolt- insertion hole 302 to adjust an angle between the screw 300 and the fixing unit 100.
  • the fixing bolt 200 has a fixing shaft- insertion hole 202 formed at one side of a body of the fixing bolt to receive the fixing shaft 104 penetrating therethrough, and a fixing recess 204 formed perpendicularly to the fixing shaft-insertion hole 202 for receiving a fixing disc 210 to secure the fixing shaft 104 to the fixing bolt 200.
  • a threaded portion 206 is formed on the other side of the body of the fixing bolt 200 so that the threaded portion is inserted into the bolt- insertion hole 302 of the screw 300 to be coupled with the fixing nut 400.
  • a second fixing protrusions 208 are formed on a portion, where the fixing bolt 200 is in contact with the first fixing protrusions 304 of the screw 300, to adjust an angle between the fixing bolt 200 and the screw 300 made by engaging the screw 300 with the first fixing protrusions 304.
  • the screw 300 can be rotated about the fixing bolt 200 as a rotational axis, it is possible to adjust an angle between the fixing unit 100 and the screw 300.
  • the fixing protrusions 208 and 304 are formed on the contact surfaces of the fixing bolt 200 and the screw 300, respectively, so that when the fixing nut 400 is fastened after a desired angle is set, the fixing protrusions 208 and 304 can be engaged with each other to maintain the set angle.
  • the fixing disc 210 is rotated and inserted into the fixing recess 204, so that the length and rotational angle of the fixing shaft 104 can be set.
  • the iliac screw system according to the present invention has three degrees of freedom, thereby facilitating the coupling with the rod.
  • FIG. 3 is a view illustrating a state where the iliac screw system according to the present invention is linked to the spinal screw.
  • a plurality of the spinal screws are inserted in the spine and the spinal screws are linked to each other via the rod, and one end of the rod is linked to the iliac screw system inserted in the ilium.
  • the screw 300 is inserted into the ilium, and one end of the rod is fixedly inserted into the rod-insertion hole 102 of the fixing unit 100.
  • an angle between the fixing shaft 104 and the rod is adjusted using the fixing disc 210, and an angle between the fixing shaft 104 and the screw 300 is adjusted using the fixing nut 400, whereby it is possible to link the rod to the iliac screw system. If the rod and the iliac screw system are linked to each other through such a manner, it is possible to perform the surgical operation without an accurate alignment of the length and angle of the rod, an angle of the iliac screw system and the like.
  • a fixing unit to be linked to a rod and a screw inserted into an ilium are linked to each other by a linking member to enhance a degree of freedom. Therefore, there is an advantage in that the iliac screw system can facilitate the coupling with a rod without an accurate alignment and be conveniently installed regardless of various shapes of patient's body, thereby being used valuably for the various surgical operations for the spine.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Neurosurgery (AREA)
  • Surgical Instruments (AREA)
  • Prostheses (AREA)

Abstract

La présente invention concerne un système de vis iliaque, et plus particulièrement, un système de vis iliaque dont le degré de liberté a été amélioré par facilitation du couplage avec une tige pour relier les vis vertébrales, sans alignement précis entre le système de vis iliaque et la tige. Selon le système de vis iliaque de la présente invention, une unité de fixation à relier à une tige et une vis insérée dans un os iliaque sont reliées l'une à l'autre par un élément de liaison pour augmenter un degré de liberté. De manière avantageuse, ledit système de vis iliaque peut ainsi être facilement raccordé à une tige sans alignement précis et peut être installé de manière commode indépendamment des formes variables du corps d'un patient.
PCT/KR2007/003486 2007-05-31 2007-07-19 Système de vis iliaque WO2008146982A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0053190 2007-05-31
KR1020070053190A KR100852261B1 (ko) 2007-05-31 2007-05-31 척추 임플란트 보조장치

Publications (1)

Publication Number Publication Date
WO2008146982A1 true WO2008146982A1 (fr) 2008-12-04

Family

ID=39881778

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/003486 WO2008146982A1 (fr) 2007-05-31 2007-07-19 Système de vis iliaque

Country Status (2)

Country Link
KR (1) KR100852261B1 (fr)
WO (1) WO2008146982A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015531279A (ja) * 2012-09-28 2015-11-02 グローバス メディカル インコーポレイティッド 脊柱変形を治療するための装置および方法
US10179014B1 (en) 2012-06-01 2019-01-15 Nuvasive, Inc. Systems and methods for promoting sacroiliac joint fusion

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100960158B1 (ko) 2007-12-04 2010-05-28 주식회사 지에스메디칼 척추 임플란트 보조장치

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002102239A (ja) * 2000-10-02 2002-04-09 Showa Ika Kohgyo Co Ltd コネクタ
US6648887B2 (en) * 2002-01-23 2003-11-18 Richard B. Ashman Variable angle spinal implant connection assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200329071Y1 (ko) 2003-07-16 2003-10-04 주식회사 솔고 바이오메디칼 척추용 고정장치

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002102239A (ja) * 2000-10-02 2002-04-09 Showa Ika Kohgyo Co Ltd コネクタ
US6648887B2 (en) * 2002-01-23 2003-11-18 Richard B. Ashman Variable angle spinal implant connection assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10179014B1 (en) 2012-06-01 2019-01-15 Nuvasive, Inc. Systems and methods for promoting sacroiliac joint fusion
US11253302B2 (en) 2012-06-01 2022-02-22 Nuvasive, Inc. Systems and methods for promoting sacroiliac joint fusion
JP2015531279A (ja) * 2012-09-28 2015-11-02 グローバス メディカル インコーポレイティッド 脊柱変形を治療するための装置および方法

Also Published As

Publication number Publication date
KR100852261B1 (ko) 2008-08-14

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