CN2148542Y - 中空椎弓根螺钉 - Google Patents

中空椎弓根螺钉 Download PDF

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Publication number
CN2148542Y
CN2148542Y CN 92204268 CN92204268U CN2148542Y CN 2148542 Y CN2148542 Y CN 2148542Y CN 92204268 CN92204268 CN 92204268 CN 92204268 U CN92204268 U CN 92204268U CN 2148542 Y CN2148542 Y CN 2148542Y
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China
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nail
screw
knowles
hollow
arcus vertebrae
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Expired - Fee Related
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CN 92204268
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陈名智
阿木古郎
和宪正
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PLA AIR FORCE GENERAL HOSPITAL
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PLA AIR FORCE GENERAL HOSPITAL
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Priority to CN 92204268 priority Critical patent/CN2148542Y/zh
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Abstract

中空椎弓根螺钉为适用胸腰椎骨折、滑脱,胸腰 椎肿瘤后路手术的一种新颖螺钉,改进手术中定标钻 孔原先后二次用克氏钉打入、拔出,为仅一次用克氏 钉打入,而后用新颖螺钉套入克氏钉与万向关节和钢 棒共同完成关节固定,简化操作,手术中调整容易,不 易伤神经,便于推广使用。可替成迪克(Dick)或斯 蒂夫(Steffce)的椎弓根螺钉。

Description

本实用新型涉及的是一种适用胸腰椎骨疾后路手术的内固定器械,属于骨科医疗器械技术改进。
目前胸腰椎骨折、滑脱,胸腰椎肿瘤的后路手术用内固定器械均采用迪克〈Dick〉或斯蒂夫〈Steffee〉式,由万向关节,钢板或钢棒,椎弓根螺钉组成。上述骨疾后路手术中椎弓根的定位标志,选定椎弓根钻孔点是手术的关键。应用迪克〈Dick〉或斯蒂夫〈Steffee〉式内固定器装置进行手术时,共同特点是先用克氏钉钻孔,深至约30mm,后拔出,再入克氏钉穿出椎弓根外,拔出,先后两次,用不同直径克氏钉进行钻孔定位。置入椎弓根螺钉,而后用万向关节,钢板或钢棒,达到固定节段目的。手术操作用X线电视观察。存在问题是:易损伤神经根,可能造成患者致残。又手述时间长,费时又费力,且不容易调整。因而基层如地区及县级医院无法开展此类骨科手术,较难以推广。
鉴于现有技术中存在不足,为此进行技术改进是必要的。
本实用新型目的是为手术提供一种使操作简便,容易调整,便于推广的椎弓根螺钉。
本实用新型要点是椎弓根螺钉为中空式,它能套入克氏钉。
应用本实用新型中空椎弓根螺钉,与万向关节,钢棒组成的内固定器装置进行前述骨疾后路手术时,先用1.0mm的克氏钉打入钻孔定位,中空椎弓根螺钉套入已定位的克氏钉旋置,而后用万向关节和钢棒,固定关节段,拔出克氏钉。
附图1:内固定器装置
附图2:中空椎弓根螺钉
以胸腰椎滑脱手术为例:在滑脱椎两侧上、下各二个邻椎用1.0mm克氏钉插入钻孔定位,见〈附图1〉〈附图2〉,套入中空椎弓根螺钉〔1〕,将螺钉〔1〕旋入,使前段松质骨螺钉均进入椎弓根,见〈附图2〉而后用万向关节〔2〕和钢棒〔3〕完成固定关节段,拔出克氏钉。
应用本实用新型中空椎弓根螺钉优点是:手术操作简单化,仅用一次克氏钉插入钻孔定位,且因椎弓根螺钉为中空式,则是直接套入克氏钉置入椎骨,不容易损伤神经根,容易调整方向。手术操作简易后,适用在广大基层地区医院开展手术,有较大推广价值。
椎弓根螺钉为中空式,必要时注入骨水泥于螺钉内空,则可增强螺钉抗拉强度,也增加适用性。
中空椎弓根螺钉可替代迪克〈Dick〉式或斯蒂夫〈Steffee〉式的椎弓根螺钉。

Claims (1)

1、一种适用胸腰椎骨折、滑脱,胸腰椎肿瘤后路手术的椎弓根螺钉,其特征在于所述的椎弓根螺钉为中空式。
CN 92204268 1992-03-18 1992-03-18 中空椎弓根螺钉 Expired - Fee Related CN2148542Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 92204268 CN2148542Y (zh) 1992-03-18 1992-03-18 中空椎弓根螺钉

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 92204268 CN2148542Y (zh) 1992-03-18 1992-03-18 中空椎弓根螺钉

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CN2148542Y true CN2148542Y (zh) 1993-12-08

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CN 92204268 Expired - Fee Related CN2148542Y (zh) 1992-03-18 1992-03-18 中空椎弓根螺钉

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102973314A (zh) * 2011-09-07 2013-03-20 常州市康辉医疗器械有限公司 一种胸腰椎后路微创骨水泥脊柱内固定系统以及应用

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102973314A (zh) * 2011-09-07 2013-03-20 常州市康辉医疗器械有限公司 一种胸腰椎后路微创骨水泥脊柱内固定系统以及应用

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