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TW201225903A - Bone anchoring device - Google Patents

Bone anchoring device Download PDF

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Publication number
TW201225903A
TW201225903A TW100147235A TW100147235A TW201225903A TW 201225903 A TW201225903 A TW 201225903A TW 100147235 A TW100147235 A TW 100147235A TW 100147235 A TW100147235 A TW 100147235A TW 201225903 A TW201225903 A TW 201225903A
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TW
Taiwan
Prior art keywords
head
bone
pressure
pressure element
scope
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TW100147235A
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English (en)
Inventor
Lutz Biedermann
Wilfried Matthis
Martin Meer
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Biedermann Technologies Gmbh
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Publication of TW201225903A publication Critical patent/TW201225903A/zh

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    • 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
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • 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
    • A61B17/7035Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7037Screws 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
    • 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Neurology (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)

Description

201225903 六、發明說明: 【發明所屬之技術領域】 係關於—種骨路固定裝置,可供穩定桿件固定於 件。固定it件係樞動連接到容納件 ,、= 内之壓力元件,施壓於頭部,而固己置在谷納件 :部’包容封閉環,構成與頭部和壓力;件合;括 =有容納件内之位置,利用摩擦經環夾持頭部,而ί: 【先前技術】 紅_vH2G()4/i)267264 A1記載一種多軸式固定裝置,1中夕 包含結合構件,適於提供球形頭部ί容納 ’使得球形頭部鎖定於容納構件之前,可ί: f邛於所而角度定向。結合構件之實現,是例如利用戸植寺 π的開口扣環’或壓縮蓋所設彈簧構件, =碩 形頭部,或利用壓縮蓋所設槽孔。私方式、、,。合球 【發明内容】 手術改進 進二r骨路固定裝置解決。 =㈣蚊裝置’可達成頭部夾持在 置,而不將頭部鎖定。此舉容許容納件 =ρ之角度位置。在此位置,壓力元件經環對 、 ’、,不將頭部鎖定,而是以摩擦方式防止其負 =破3夾住,可方便容納件與桿對齊,和桿件的插I頭 ,虽桿件業已插入容納件内,仍可調節桿 + ==:之_。最後,動藉部=;ί; 201225903 ίί: Τ+^ ° :月系統。只需提供頭部周圍_溝,:及 組件可以低價串列製造。 白。、、和優點’由參見關具體例之說明,即可明 【實施方式】 1,包含骨骼固定a元:斤2不以:=多,式骨骼固定裝置 件6配置在頭部4頂上二連接於,件2。。壓力‘ 納件5内,並施麼於頭部4 :、。=巴桿件20保固於容 與容納件5合作。丨叹有鎖疋裝置,例如内螺釘7, 如第3a、3b、3c圖所示,頭部4 Ϊ自ίί,以及在平坦自由端之工具凹^ ^朝自又由C二 向,在最大直徑上方的位置,設右f 朝目由知的方 的截面實質上為梯形’側面開口,:衣形凹溝41 二用:包容環8。環形凹溝W面第實=螺= =同環形凹溝41的基面圓滑,的自由二 52。和底端 ^著是支贿54,《容_構件2 底端52有開口 55,螺釘構件2的軸部3可延。=在 ^座部54為球形,但可傾斜,亦可呈其他任何^狀 ^ ,部4,故可相對於容納件5樞動。頂端51設有實 形凹部56 ’藉此形成二自由股部57,58,係槽溝側部,以容 201225903 納桿J 20。在股部設有陰螺紋59,與内螺釘7喃合。 μ 在離底端52 一段距離(比離頂端51的距離 至離丑Hrr孔500a,500b,形成咖腔孔’從外表面延伸 内壁一段距離,按下述方式續縮。盲孔 聋相差90。I成彼此偏差180,並與U形凹部%形成之槽 ί ί亡·篇,5獅對共軸腔孔53的軸線垂直對 5 ί lT〇b 5 53 令、,内件5部,構成可變形部。 奸^形成單件式。實f上為圓筒形構造,外徑使 :和二端62产力元件6插入容納件5内力:= 二6 65,66 ’成為槽溝,容納桿件烈。此外、力 1 4tf2rL6?> («^) 株,壓力元件6騎賴件,配置在容納 6t對:納件5的U形凹部56和壓力元件的u形凹部 孔5二=愿,當於容納件5之魏腔 為里〇 /、午在續縮後,壓力元件6即保持在轉動豐+ ΐ 軸向位置’可在頭部4施加輕微預負載 4 圖表示環8。如第4c圖所示,環8為封閉 式。在未變形狀態,具有實質上_斷面。8 U = ,的塑膠材料製成,例如生理相‘二2 如麵聰(超高分子量聚乙稀)、石夕L ^ = 組合物。骨_定裝置丨的其他組件, ㈣2 成,諸如生理相容性金屬,例如鈦 U二 ::錄則生理相容性塑膠材料,諸=;ί組 環8的尺寸是在環插入環形凹溝4 且少許凸出於環形凹溝41之外 ^ ^質上不良形, 〈外由於被形凹溝41之截面為 201225903 提供空間,在壓力元件6施加負娜 在第5a圖所示組震狀態時,頭部4位於支座部%内, 而,力元件6配置在頭部4頂上。壓力元件6的自由股部 =,66鬲度構成是,在桿件插入並且置於槽溝底部時,自由股 =5,_66不^旱^牛20上方延伸。壓力元件6如第^和北 圖所不,可佔有第-位置,其定義為,利用 獅’連接壓力元件6和容崎5,此時 角2鎖定之前’利用摩擦維持頭部4於某 ί fit 内螺釘7、桿件2Q、壓力元件6和環8, 施加於頭部4。實質上圓形截面 ^ ° 力,克服麾拷力^頭^4於角度位置。對螺釘構件2施 二=内 佔右笛-aw ^ I 杷頭部4鎖定。此外,壓力元件ό 凹溝“尺寸,即可達二=觸。選用環8尺懒 骨路^元元件2之組裝。環8安裝在 &圖所示。第6d圖表矛骨/固^凹f 41包容,如第6b和 件6。當慶力元件6按/m牛2,連同安裝之愿力元 摩擦維持在角度位置卩方向朝下獅’頭部4即利用 元件r二!=供:=_定裝置丨,愿力 須有若干骨_定裝置 構=擦方式央持。通常必 内,再施力克服炎持力,樞動累容=件2旋入一骨路或椎骨 正確定向’供桿件20插入 拉直^^谷納件5有 在此角度位置。把連接_定裝暫置 201225903 ?螺釘7 ’運動勤树6向下 !目對於容納件5的角度位置即生匕4鎖定’故螺針構 固疋桿件20。 〇 口义。再利用内螺訂7 就固定元件言,各種固定元 θ。此等固定元件係例如不 =可用,並與容納件組 筒螺釘、不同螺紋形式之螺釘、二J同直徑的螺針,有套 開組件,彼此連接。 等。碩部和軸部可為分 件式鎖找置者。例如,單 用,式鎖定裝置(有外螺釘和内=牛和頭部鎖定),可改 兀件有u形凹部,股部在 方j i)。在此情況下,壓力 f部和桿件是分_定。二件式鎖定裝置的 例。例如,容鱗可有不 不限於圖示具體 有較大的樞動角度。 。卩’谷許螺釘構件對一側 壁,=中環^巧部;而是在容納件的内 施以預負載力量,在頭部4 ^,愿力元件經環對頭部 某角度位置。 、疋之刖,利用摩擦維持頭部於 的截面亦可為實質上_形、長方環周又變 可分別變化。 衣此專70件或%之截面,亦 【圖U2:】中’容納件構成讓螺釘元件從底端引進。 ^圖騎_定裝置之分解透示圖; =圖為第1圖骨_定褒置組裝狀細; 第3a圖為骨置之透視圖; 201225903 圖;第3b圖為骨㈣定t置取自含有螺釘軸線的平面之斷面 置之俯視圖; 第4b圖為環之侧視圖 第4c圖為環之斷面圖 第4d圖為環之俯視圖; 面圖第5a _禮固<裝置在頭部最後鎖定前喊狀態之斷 第5b圖為第5a圖之部份放大圖; 第6a圖為祕元件和環之分解斷面圖; 第6b圖騎賴定元件和環植餘輯面圖; 第6c圖為第6b圖之部份放大圖; 第6d圖為骨骼固定元件 面圖。 環和壓力元件在組裝狀態之斷 【主要元件符號說明】 1 骨骼固定裴置 3 螺紋轴部 4a 工具凹部 6 壓力元件 8 環 41 環形凹溝 52 容納件底端 54 支座部 56 U形凹部 59 陰螺紋 62 壓力元件底端 65,66 自由股部 500a,500b 縐縮腔孔 2 骨骼固定元件 4 頭部 5 容納件 7 内螺釘 20 桿件 51 容納件頂端 53 共軸腔孔 55 開口 57,58 自由股部 61 壓力元件頂端 64 U形凹部 67 共軸腔孔 600a,600b 縐縮腔孔

Claims (1)

  1. 201225903 七、申請專利範圍: 1.一種骨骼固定裝置,包 ⑷ •固定元件⑴,有以固κ , 口疋於骨骼,和頭部 容納件(5),有頂端rq、 (20)用之凹部⑻,從 =,(52),容納桿件 (53W—= (6)之間; 碩。15 (4)和壓力元件 元你中?部(4)可相對於容納件(5) 兀件(6)祕於頭部⑷ ^動,並可經壓力 和懕二其中壓力元件⑹可佔有第二:置度;_ 對頭(6)直接接觸,致使壓力元件(6^時凡件(8) 施以預負載力量,在頭部 匕)經元件⑻ 裇,准持碩部(4)於一角度位置者。 鎖疋之前,利用摩 2=請專利範圍第i項之倾 可佔有第二位置,在此壓於裝ϋ其中壓力 鎖疋者。 〈4),將頭部(4) 开杜$、中吻專利範圍第1或2項之骨路固定F晋Μ、 70件(、8)係封閉環(8)者。 裝置(1),其中 ^、4^申請專利範圍第1項之骨骼固定裝置(1八甘^_ )L括凹溝(41),形成可包容元件(8)者。,/、中碩部 (dt請專利範圍第4項之骨路固定裝置⑴,其中頭邱 為球形’有自由端,而凹溝(41)位於朝自由端 頭部(4)最大直徑上方之位置者。 目叫方向的 6如申請專利範圍帛1項之骨路固定裝置⑴, 70件(6)包括凹溝(41),碱可包容元件⑻者。’、力 7.如申請專利範圍第1項之骨骼固定裝置(1),其中厂 力 201225903 元件(6)第一位置時,元件(8)相對於環形凹溝(41)稍微 過大,故在元件(8)和壓力元件(6)之間達成摩擦者。 8. 如申請專利範圍第1項之骨骼固定裝置(1),其中元件 (8)係彈料材料製者。 9. 如申請專利範圍第1項之骨骼固定裝置(1),其中元件 (8)截面在未變形狀態為實質上圓形者。 10. 如申請專利範圍第1項之骨骼固定裝置(1),其中設 有固設元件(7),以固設桿件(20)者。
TW100147235A 2010-12-23 2011-12-20 Bone anchoring device TW201225903A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201061426776P 2010-12-23 2010-12-23
EP10196880.8A EP2468198B1 (en) 2010-12-23 2010-12-23 Bone anchoring device

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TW201225903A true TW201225903A (en) 2012-07-01

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US (4) US10433877B2 (zh)
EP (1) EP2468198B1 (zh)
JP (1) JP5917905B2 (zh)
KR (1) KR20120072322A (zh)
CN (1) CN102525620B (zh)
ES (1) ES2461843T3 (zh)
TW (1) TW201225903A (zh)

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US20200054364A1 (en) 2020-02-20
US12465409B2 (en) 2025-11-11
EP2468198A1 (en) 2012-06-27
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JP5917905B2 (ja) 2016-05-18
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US11992243B2 (en) 2024-05-28
US11123109B2 (en) 2021-09-21
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US20120165881A1 (en) 2012-06-28
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US20240350177A1 (en) 2024-10-24
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CN102525620A (zh) 2012-07-04
US10433877B2 (en) 2019-10-08

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