[go: up one dir, main page]

CN103800059B - 脊柱内固定可调横连装置 - Google Patents

脊柱内固定可调横连装置 Download PDF

Info

Publication number
CN103800059B
CN103800059B CN201410005858.7A CN201410005858A CN103800059B CN 103800059 B CN103800059 B CN 103800059B CN 201410005858 A CN201410005858 A CN 201410005858A CN 103800059 B CN103800059 B CN 103800059B
Authority
CN
China
Prior art keywords
adjustable
connecting rod
tranverse connecting
distensible ring
hold
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.)
Active
Application number
CN201410005858.7A
Other languages
English (en)
Other versions
CN103800059A (zh
Inventor
何强龙
徐文利
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.)
Trauson Medical Instrument China Co Ltd
Original Assignee
Trauson Medical Instrument China 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 Trauson Medical Instrument China Co Ltd filed Critical Trauson Medical Instrument China Co Ltd
Priority to CN201410005858.7A priority Critical patent/CN103800059B/zh
Publication of CN103800059A publication Critical patent/CN103800059A/zh
Application granted granted Critical
Publication of CN103800059B publication Critical patent/CN103800059B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7043Screws or hooks combined with longitudinal elements which do not contact vertebrae with a longitudinal element fixed to one or more transverse elements which connect multiple screws or hooks

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)
  • Prostheses (AREA)

Abstract

本发明涉及一种脊柱内固定可调横连装置,具有固定螺母、压紧螺母、胀紧环和可调横连杆;所述固定螺母安装在椎弓根钉上;所述可调横连杆与胀紧环之间为球面配合接触;所述压紧螺母压紧胀紧环。本发明为一种低切迹横连装置,横连装置直接安装在椎弓根螺钉上方并可兼作顶丝用,横连杆的角度在横断面、冠状面、矢状面内可调节,可有效避让脊髓后弓,避免压迫脊髓;横连杆长度也可调节,以适应不同病人椎体解剖结构尺寸差异。

Description

脊柱内固定可调横连装置
技术领域
本发明涉及医疗器械技术领域,特别涉及一种脊柱内固定可调横连装置。
背景技术
颈椎椎间盘向后方突出可压迫脊髓,临床治疗时可切开椎板并作内固定进行后路减压减轻或消除病症。由于椎板切开后脊髓后弓,常规内固定的横连装置常压迫脊髓,且横连装置切迹较高时,术后病人异物感明显。
发明内容
本发明的目的是克服现有技术存在的缺陷,提供一种结构简单,方向万向可调,长度可调,适用范围广的脊柱内固定可调横连装置。
实现本发明目的的技术方案是:一种脊柱内固定可调横连装置,具有固定螺母、压紧螺母、胀紧环和可调横连杆;所述固定螺母安装在椎弓根钉上;所述可调横连杆与胀紧环之间为球面配合接触;所述压紧螺母压紧胀紧环;所述胀紧环胀开并与可调横连杆紧密贴合固定。
上述技术方案所述胀紧环为呈“C”形的开口结构,内部与固定螺母1采用锥面配合。
上述技术方案所述可调横连杆两端的螺纹的螺旋方向相反。
上述技术方案所述可调横连杆的长度可调,可调横连杆的中部具有调节螺母。
采用上述技术方案后,本发明具有以下积极的效果:
本发明为一种低切迹横连装置,横连装置直接安装在椎弓根螺钉上方并可兼作顶丝用,横连杆的角度在横断面、冠状面、矢状面内可调节,可有效避让脊髓后弓,避免压迫脊髓;横连杆长度也可调节,以适应不同病人椎体解剖结构尺寸差异。
附图说明
为了使本发明的内容更容易被清楚地理解,下面根据具体实施例并结合附图,对本发明作进一步详细的说明,其中
图1为本发明的结构示意图;
具体实施方式
(实施例1)
见图1,本发明具有固定螺母1、压紧螺母2、胀紧环3和可调横连杆4;固定螺母1安装在椎弓根钉上;胀紧环3为呈“C”形的开口结构,可调横连杆4与胀紧环3之间为球面配合接触;压紧螺母2压紧胀紧环3,使胀紧环3胀开并与可调横连杆4紧密贴合以固定。可调横连杆4两端的螺纹的螺旋方向相反,可调横连杆4的长度可调,可调横连杆4的中部具有调节螺母5。
本发明的工作原理为:固定螺母1安装在椎弓根钉上,兼作顶丝用以压紧连接棒,方便医生操作减小切迹;可调横连杆4与胀紧环3之间采用球面配合,可调横连杆4可以绕球心转动一定角度以避让脊髓后弓;胀紧环3为开口设计,内部与固定螺母1采用锥面配合,当可调横连杆4角度调整完成后,拧入压紧螺母2,压紧胀紧环3使之膨胀与可调横连杆4端部内球面紧密接触、固定;可调横连杆4两端螺纹旋向相反,旋转中部可调节横连杆长度,以适应不同病人椎体解剖结构尺寸差异。
以上所述的具体实施例,对本发明的目的、技术方案和有益效果进行了进一步详细说明,所应理解的是,以上所述仅为本发明的具体实施例而已,并不用于限制本发明,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (3)

1.一种脊柱内固定可调横连装置,其特征在于:具有固定螺母(1)、压紧螺母(2)、胀紧环(3)和可调横连杆(4);所述固定螺母(1)安装在椎弓根钉上;所述可调横连杆(4)与胀紧环(3)之间为球面配合接触;所述胀紧环(3)为呈“C”形的开口结构,内部与固定螺母(1)采用锥面配合;所述压紧螺母(2)压紧胀紧环(3);所述胀紧环(3)胀开并与可调横连杆(4)紧密贴合固定。
2.根据权利要求1所述的脊柱内固定可调横连装置,其特征在于:所述可调横连杆(4)两端的螺纹的螺旋方向相反。
3.根据权利要求1所述的脊柱内固定可调横连装置,其特征在于:所述可调横连杆(4)的长度可调,可调横连杆(4)的中部具有调节螺母(5)。
CN201410005858.7A 2014-01-07 2014-01-07 脊柱内固定可调横连装置 Active CN103800059B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410005858.7A CN103800059B (zh) 2014-01-07 2014-01-07 脊柱内固定可调横连装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410005858.7A CN103800059B (zh) 2014-01-07 2014-01-07 脊柱内固定可调横连装置

Publications (2)

Publication Number Publication Date
CN103800059A CN103800059A (zh) 2014-05-21
CN103800059B true CN103800059B (zh) 2016-01-20

Family

ID=50697785

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410005858.7A Active CN103800059B (zh) 2014-01-07 2014-01-07 脊柱内固定可调横连装置

Country Status (1)

Country Link
CN (1) CN103800059B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016108504A1 (de) * 2016-05-09 2017-11-09 Aesculap Ag Medizintechnisches Instrument zur provisorischen Fixierung einer polyaxialen Pedikelschraube

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2075949U (zh) * 1990-09-03 1991-05-01 张家港市医疗器械厂 椎弓根脊柱内固定器
CN202161394U (zh) * 2011-07-26 2012-03-14 山东威高骨科材料有限公司 一种连接棒可调节活动的椎弓根钉
CN103190948A (zh) * 2012-01-04 2013-07-10 中国科学院深圳先进技术研究院 脊椎内固定装置
CN203693726U (zh) * 2014-01-07 2014-07-09 创生医疗器械(中国)有限公司 一种脊柱内固定可调横连装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040158247A1 (en) * 2003-02-07 2004-08-12 Arthit Sitiso Polyaxial pedicle screw system
US20040260283A1 (en) * 2003-06-19 2004-12-23 Shing-Cheng Wu Multi-axis spinal fixation device
US7942911B2 (en) * 2007-05-16 2011-05-17 Ortho Innovations, Llc Polyaxial bone screw

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2075949U (zh) * 1990-09-03 1991-05-01 张家港市医疗器械厂 椎弓根脊柱内固定器
CN202161394U (zh) * 2011-07-26 2012-03-14 山东威高骨科材料有限公司 一种连接棒可调节活动的椎弓根钉
CN103190948A (zh) * 2012-01-04 2013-07-10 中国科学院深圳先进技术研究院 脊椎内固定装置
CN203693726U (zh) * 2014-01-07 2014-07-09 创生医疗器械(中国)有限公司 一种脊柱内固定可调横连装置

Also Published As

Publication number Publication date
CN103800059A (zh) 2014-05-21

Similar Documents

Publication Publication Date Title
PT1708631E (pt) Material de osteosíntese vertebral
CN201194833Y (zh) 一种腰椎弹性内固定器
CN209404914U (zh) 后路枕颈人工关节装置
CN103800059B (zh) 脊柱内固定可调横连装置
CN203693726U (zh) 一种脊柱内固定可调横连装置
CN110693586A (zh) 一种交叉克氏针外固定器
CN205251663U (zh) 骨盆专用经皮微创前环钉棒固定系统
CN211433228U (zh) 一种交叉克氏针外固定器
CN205126383U (zh) 一种多节段脊柱整复外固定器
CN203138659U (zh) 一种寰椎椎弓根螺钉和枢椎椎板钩内固定系统
CN204655438U (zh) 一种颈椎牵引器
CN205339095U (zh) 一种新型短尾万向螺钉
CN202933003U (zh) 脊柱椎体骨折微创复位固定器
CN205126396U (zh) 髂骨螺钉
CN202537635U (zh) 一种腰椎椎板间动态连接装置
CN208910443U (zh) 一种可调横连
CN103622738B (zh) 一种脊柱内固定非融合动态连接棒
CN203693724U (zh) 脊柱内固定支架
CN204246231U (zh) 颈椎前路锁定加压钢板
CN204246232U (zh) 一种万向弹性固定棒
CN204233205U (zh) 一种脊柱矫形装置
CN203089330U (zh) 腰椎骨折复位器
CN203634269U (zh) 脊柱固定器
CN217744550U (zh) 一种颈胸钉棒固定装置
CN103767780A (zh) 一种脊柱椎体骨折量化撑开内固定器

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant