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TW201228631A - Polyaxial bone anchoring device - Google Patents

Polyaxial bone anchoring device Download PDF

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Publication number
TW201228631A
TW201228631A TW100147588A TW100147588A TW201228631A TW 201228631 A TW201228631 A TW 201228631A TW 100147588 A TW100147588 A TW 100147588A TW 100147588 A TW100147588 A TW 100147588A TW 201228631 A TW201228631 A TW 201228631A
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TW
Taiwan
Prior art keywords
head
axis
surface portion
top end
bone
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TW100147588A
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English (en)
Inventor
Lutz Biedermann
Wilfried Matthis
Michael Kegel
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Biedermann Technologies Gmbh
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Publication of TW201228631A publication Critical patent/TW201228631A/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
    • A61B17/70Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
    • 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
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • 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
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S606/00Surgery
    • Y10S606/907Composed of particular material or coated
    • Y10S606/913Monolithic

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

Description

201228631 六 發明說明: 【發明所屬之技術領域】 本發明係關於-種多軸式骨路固定裝置,把 路,骨骨路峡裝置包含蚊元件^納= 穴固定元件樞動連接至容納件二 壓力件,施壓於頭部,而固定在某_角度。壓力元 接觸°頭部尺寸稍超過頭部接觸表面, ίί=己合’在頭部鎖定之前’利用摩擦予以爽持。 US 2004/0267264 A1記載一種多軸式固 =式骨路螺釘包含結合構件,適於提供球形頭^和容‘内二 ί ,在球形頭部鎖定於容納構件内之前,可把幹 Ϊ2持ΐ所f角度定向。結合構件之實現係、例如’利用包圍 口扣環,或利用_帽蓋所設彈簧構件,以 式、、,《 δ球形頭部,或利用壓縮帽蓋所設 不 【發明内容】 手術目種倾峡μ,得以改進 步發項之固定裝置達成。進- 容納===裝[可J成頭部暫時夹持在相對於 在可·ίίί二不加以鎖如此得以維持容納件 =此不將頭部鎖定,但可防止自由樞動 有,數月_定器必須連接於桿件之情況。桿$ 5 納件内時,仍可調節桿件,不需完全鬆脫頭部。牛業已插入谷 屢力7G件對頭部所施預負載量,可鑑於屋 曰之干涉配合’相對於頭部決定勤構件之尺寸,而 201228631 界定 頭部可保固於支座内,使庐罟* 縮工具。 狀置可谷易組裝,不需另外罐 本發明其他特點和優點,由參昭 【實施方式】 w〜附圖之況明即可清楚。 第1和2圖概括表示第-具體例之多軸式骨_1 置,包含錄岐元件丨,呈私舰禮固疋裝 和頭部3。頭部3形成球形截^f _部2 =工又T在其自由端有凹部4,二具ί:道ΐ -置在頭4 3頂上之容納件内。為蔣产杜〗ΛΛ 固:容2件内’並施壓於頭部,設有鎖定η ; 形式,與容納件5合作。 主円螺釘7 S 第i至1〇圖,容納件5實質上為圓筒形,有頂端 及誠端5b延伸之細腔孔5卜底端ί §又有支座部5_2,以包容頭部3。支座部52為球形,半徑 於頭部3半徑,並有開口 52b,軸部可貫穿延伸。容^ ^ ίΐΐη内樞動,類姆窩結合。支座部52的高度使 支座,52含有頭部3最大直徑Ε之區域,如第6圖所示。使 52a 51和支座部52之間,設有圓筒形邊緣部 >、内瓜比腔孔51小,只比頭部的最大外徑E稍小。 t Ϊ部3尺寸稍微超過圓筒形邊緣部52a,使頭部可被 推穿過邊緣部,進入支座。因此,頭部3 一旦已引進入 部52,即被圓筒形邊緣部52a保持在支座部内。 上 容在頂端%有實質上U形凹部53,形成容納桿件 1〇〇之槽溝。利用U形凹部,形成槽溝軸線L,垂直於容 件5之中心軸線c延伸。容納件鄰近頂 a 好 54,與鎖定裝置之内螺針7合作。 仏螺紋 詳見第7、9、10圖,設有二凹部55配置成彼 ⑽。’從腔孔51延伸至距底端5b —段距離,進人支座 201228631 Ξ壓==,呈9。。—構成包 ,力元件6形成單件式。實質上 牛5的腔孔51内軸向運動。= 二其外徑 =b。頂端6a設有圓筒形凹部61,二6: 、、'、'、。底端6b設有球形凹部62以容纳1 谷 底㈣沿周緣方向有二對立缺口,由此$碩2於其内。 側視大約V形,如第13圖所示,角凸部63 =:形狀不限於具體例所示形狀。例 為:二。 時,延伸超細厂㉗ 球形凹部63相對於球形頭部3之尺 ^凹部63,故當球形頭部3插入球形二 j干:配合,利用凸部63施於頭部之摩達 ,計頭部和具有凸部63 _形6 = 合,可調節摩擦力之強度。 2間之適當干涉配 示^卜螺6娜航64,料工具(圖上未 諸,;;身體相容性材料製成, 錄鈦諾,或;性金屬合金,諸如 (ρεεκ)) 如第置之組裝。首先 6之球形凹部62内。111%裝3%的頭匕3引進入壓力元件 伸、f繞,超越最大直徑E之區域延 ’、 g &力克賴部和凸部63狀摩擦力,可 201228631 使頭部相對於壓力元件6樞動。 入二同:裝的壓力元件從頂端峨 與容納件的u形凹部12 件j的定向使其圓筒形凹部61 合容納件之凹部55,如/^7岡所以’凸部63定向使其可結 藉香服奸空:t 如刖第7圖所示。最後參見第16d圖, =服f穿支座部的圓筒形上緣口 力夏,把頭部3插入支座部52内。 门卞ν配口之 利用力元件6安裝於容納件5内時,頭部3 用支座i的圓筒形又’由於頭部3是利 定,例靖,因為利用么"3 二必要額外固 保持於支座部内動頭部本身利用上緣-圖所:用Ξ常可以爾狀態輪送,如第16d 2椎ί内’再將容納件對齊,具有正確定 齊,連接骨骼固定裝置 疋向。當全部容納件對 定。桿件同時利用内=定 的r組件均標示同樣參‘字=再;r =同’在杜座部52之^形定裝 i支座部52叫,比聊 201228631 壓力兀件包括二附加凸部64,延伸超越頭部最大直徑E 之區域,各相對於凸部63定位90。。各凸部64有朝外延伸尖 端65。當螺釘構件連同磨力構件插入容納件内時,尖端仍 ^入凹部56内’提供容納件和壓力树間之額外形式配合 凹㈣軸向高度可將壓力元件更向下推動,把頭部3 轴顏定裝置之第三具體例如第18圖所示。第三 =例之立多軸式骨路固定裝置與第二具體例之骨路固定裝置 =同a凹^ 56 *尖端65改為凸部64有稍微朝外延伸之翼片 υΐ下”過容納件内内徑所容許。當頭部連同壓力 =件=時,翼片66即緊壓容納件之内壁 2 接,額外保持頭部。 设、刀里配口逑 前述具體例可構思修飾例。在第一修飾 =邊緣、尖端或翼片保持在支座位置。在此修飾例"中 避免頭部姆於壓力元件在朝頂端5a的方^ j 藉續縮於容納件内而保持。 運動M:力凡件 ^他修飾例包括二凸部以上,或是凸部在第一 上的:,、他形狀。在進一步修飾例中,第一罝 ^ - 在垂直於槽溝軸線以上之其他地方。第二^妒’ β卩可設 ^端’或第三具趙例之翼片,“其 支座部可有球形以外之別種形狀。例如 容許頭部樞動像球窩接頭的所有形狀均 Τ Χ斜縮。只要 觸表面也不需球形。另外,亦°頭部和頭部接 至於固定元件,各種固定元件均 合。此等固定元件有例如不同長度、不同納件組 筒的螺釘、不同螺紋形式之螺釘、釘子螺釘、加套 分開組件,彼此可以連接。 碩。卩和軸部可為 如 各種容納件均可用,尤其是配合 ,單件式鎖定卩說· & & # & @鎖定裝置。例 早件式紅裝置(4如内螺釘,同時把桿件和頭^ 201228631 磁宏#罢-ΈύΛΧ ^ 4知'^在桿件上方延伸。以二件式 鎖疋農置,頭部和桿件可單咖定。又, - ^式 帽、插旋鎖定裝置及其他,亦屬 —他螺母、外螺 示具體例。例如,容納件可納件形狀不限於圖 對特定側有較大的樞動有不對^端部’容許螺釘構件 進。在進-步修飾例中,容納件構成容許螺釘元件從底端引 【圖式簡單說明】 圖;第1圖為第一具體例多軸式骨路固定裝置之分解透視 ^2圖為倾m絲置在_狀態之透視圖; 軸線ΐ平3面細定裝置在組裝狀態沿垂直於桿件 =4圖為骨路固定裝置沿第3Β|Α.Α線之斷 平面ί斷^树錄似置杨錄躲自包棘件轴線的 第6圖為第5圖之部份放大圖; ^ 7圖為錄式骨顧絲置的容納件之透視圖; 第8圖為第7圖容納件之側視圖; ^ 9圖為容納件取自包含桿件軸線的平面之斷面圖; =ίίϋ件取自垂直於桿件軸線的平面之斷面圖; 第11圖為壓力凡件之透視圖; 第12圖為壓力元件之側視圖; 第13圖為第12圖壓力元件轉9〇。之側視圖; 第14圖為壓力元件沿第13圖Β_Β線之斷面圖; 第15圖為第11圖壓力元件之底視圖; 第16a至16d圖為多軸式骨路固定裝置之組襄步驟圖; 第17圖為第二具體财軸式骨觀定裝置取 軸線的平面之斷面圖; 201228631 第18圖為第三具體例多軸式骨骼固定裝置取自包含桿件 轴線的平面之斷面圖。 【主要元件符號說明】 1 骨骼固定元件 2 螺紋軸部 3 頭部 4 凹部 5 容納件 5a 容納件頂端 5b 容納件底端 6 壓力元件 6a 壓力元件頂端 6b 壓力元件底端 7 内螺釘 12 U形凹部 51 共軸腔孔 52 支座部 52a 圓筒形邊緣部 52b 開口 53 U形凹部 54 陰螺紋 55 凹部 56 凹部 61 圓筒形凹部 62 球形凹部 63 凸部 64 附加凸部 65 尖端 66 翼片 100 桿件 C 容納件中心軸線 E 頭部最大外徑 L 槽溝軸線

Claims (1)

  1. 201228631 七 申請專利範圍: 1.-種多軸式骨關定裝置 . 固定元件(1),有固定於 (3),頭部有彎曲外表面部;、 鬥用之軸部(2),和頭部 容納件(5) ’有頂端(5a) 之槽溝(12),從頂端(Sa) 口 6•端(51〇,容納桿件用 孔容納頭部用之^部)延伸之共抽腔 Μ力7〇件(6) ’配置右批丨 、52), 接觸表面部(62,63,64),與頭部(3) j力元件⑷有頭部 部⑴相對於容納^曲外表面部,觸; 件(6)施壓於頭部而固定於 ^犯動,可經由壓力元 ί面部之尺寸超部_表面i‘ 63ϋ中頭部在彎曲外 5 ’利用外表面部和頭部接觸表面“之^)成干涉配 2.如申請專利範圍第丨項之多、,夾持頭部者。 包含最大直徑⑻之區域, 中容納件在内劈右㈣β項之夕轴式骨路固定裝置,其 部接觸表=二⑻,延伸入支座部⑼,以包容頭 部接㈣1項之錄式她峡錢,其中頭 者。 σ卩匕3至少一分開部(63,64) ’從對立側夾持頭部 分開範^多轴式骨路固定震置,其中該 力_ 6.如申請專利範圍第1項之多軸式骨骼固定裝置,其中壓 龙=件(6)為實質上圓筒形,有上端(6a)和下端(恥),又 在下^具有凹部(62),面朝頭部,藉此設有頭部接觸表 曲邵(、63,64)者。 λ如申請專利範圍第1項之多軸式骨骼固定裝置,其中又 成把頭部(3)把持於支座(52),以抵制朝頂端(5a)運動 201228631 者。 户r =巾請專利範圍帛1項之多軸式骨㈣定裝置,其中支 )有上緣(52a),在頭部最大外徑(E)之區域上方, # H、二碩部尺寸超過上緣(52a),使頭部可通過上緣(52a), 、off支座(52)内,即防止朝頂端(5a)運動者。 部接觸範圍第1項之多軸式㈣固絲置,其中頭 壁所設凹部\65Ί包含彈菁元件(65) ’扣入容納件⑸内 ⑺=U655a=Sa在支座部(52)内,可防止頭部 頭邱2Γίί利範圍第1項之多軸式骨路固定I置,盆中 imi(、64)有翼片(66),尺寸超過容is 朝頂ig)運(=和容納件⑴間之干涉配合,防止頭部 力元麵絲置,其中壓 頭部二之多軸式骨_定裝置,其中 13.如申請專利翻第丨項之多 頭部接觸表© (62,63,64)為球形者。禮置,其中 支座第1狀錄❹㈣找置,其中 設有====_震置,其中 支座⑼内,並把桿;二 12
TW100147588A 2010-12-27 2011-12-21 Polyaxial bone anchoring device TW201228631A (en)

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US201061427412P 2010-12-27 2010-12-27
EP10197083.8A EP2468199B1 (en) 2010-12-27 2010-12-27 Polyaxial bone anchoring device

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TW201228631A true TW201228631A (en) 2012-07-16

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US (2) US9333011B2 (zh)
EP (3) EP2468199B1 (zh)
JP (1) JP6071193B2 (zh)
KR (1) KR20120074219A (zh)
CN (1) CN102525622B (zh)
ES (2) ES2433933T3 (zh)
TW (1) TW201228631A (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8444681B2 (en) 2009-06-15 2013-05-21 Roger P. Jackson Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert
US9980753B2 (en) 2009-06-15 2018-05-29 Roger P Jackson pivotal anchor with snap-in-place insert having rotation blocking extensions
US8007522B2 (en) 2008-02-04 2011-08-30 Depuy Spine, Inc. Methods for correction of spinal deformities
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US20120165882A1 (en) 2012-06-28
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