TW587927B - Connecting element - Google Patents

Connecting element Download PDF

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Publication number
TW587927B
TW587927B TW091100275A TW91100275A TW587927B TW 587927 B TW587927 B TW 587927B TW 091100275 A TW091100275 A TW 091100275A TW 91100275 A TW91100275 A TW 91100275A TW 587927 B TW587927 B TW 587927B
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Taiwan
Prior art keywords
rod
nail
nail head
shaped
connection
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TW091100275A
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English (en)
Inventor
Lutz Biedermann
Jurgen Harms
Peter Ostermann
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Biedermann Motech Gmbh
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • 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, setting implements or the like
    • A61B17/60Surgical 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 for external osteosynthesis, e.g. distractors, contractors
    • A61B17/64Devices extending alongside the bones to be positioned
    • A61B17/645Devices extending alongside the bones to be positioned comprising a framework
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • 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, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7049Connectors, not bearing on the vertebrae, for linking longitudinal elements together
    • A61B17/7052Connectors, not bearing on the vertebrae, for linking longitudinal elements together of variable angle or length
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • 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, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone 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

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (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

587927 五、發明說明(1) 本發明係關於申請專利範圍第1項前 、 ,以連接骨骼或脊椎穩定用之二桿狀、元則泮句之連接元件 此種連接元件已載於DE 6 92 0 6 3 1 8 τ°2。 由一端彼此連接的二桿所形成,而要連 —逆接兀件是 計成可繞橫越桿方向延伸的共同螺叙如 的元件疋利用設 接部末端包括環,可套接在螺釘上,$ 之套節夾持。連 的桿上。由W0 91/16020已知包括二^^者可連接於要連接 部,用來容納彼此平行的二桿。因一此 圓,1^段形凹溝之連接 彼此斜向延伸的桿,即無法連接。 ,彼此呈角度傾斜或 本發明之目的,在於提供上述 呈角度傾斜或彼此斜向延伸的桿可/連接疋件,容許彼此 此目的是利用申請專利範圍第^連接。 達成。此種連接件的大優點是, 項特徵句的連接元件 的所需定向,把桿定向。 Κ可免按照要連接組件 本發明之發展特徵列在申諳 本發明進一步特徵和優點,丨乾圍附屬項。 可明白。附圖中: * 由參照附圖說明具體例即 第1圖為應用透視圖; 第2圖為連接元件第一具 第3圖為連接元件第二具體: 圖為修飾具體例之斷面圖θ , 固定Ϊ部圖各中旋表上二螺長釘骨3,部丨,《^^ 釘。螺釘各包括釘頭5、,右;^在脊椎手術上稱為有腳螺 有谷納孔以容納桿6。利用螺帽7
$ 5頁 由第1圖可見,在骨骼部1内旋入第 二螺釘確實相似’在此釘頭容辦第 9利用連接元件1 0連接於第一桿6。結果,構成 五、發明說明⑵ 把桿牢固連接於釘頭 三螺針8,其設計斑、 二桿9 〇 /、月 第二 額外穩定 ,至Ϊ^實施例中,所連接二部1和2是長骨絡部。同此 細杜夕厂桿連同相對應螺釘,在脊椎手術中用來容納同接 組件在t如在固定具的情沉,見DE 38 23 ?37 —c。门樣 第-端ί2第圖一所二具體:中,連接元件10包括釘幹11 ’在 16在圓U二臂15,16’界定U形凹溝“。二臂邝, 徑基本上等自由端有陽螺紋17。U形凹溝Η的直 1 8憨入TT ^导、或稍大於要受容納的桿直徑,並大到可fe扣 有;ί: Λ14内,在側向由後者導引。另設螺帽19 溝14内得桿18可旋在螺離帽19車乂上才干固18定直徑為小,故放入U形凹 段。Ϊ ί 2部圖 12可包見’桿J8的另-端包括釘頭21 ’具有球形 大於釘頭2心Ϊ圓節2〇,其直徑基本上等於或稱 後者導弓I。 ”尺寸使得釘頭可以引進腔孔内,由 在圖示具體你Φ 徑等於釘頭21半徑。由^孔22 =括底部23,呈球形,其半 用螺合脫離圓筒形釘頭第2和3圖可見,釘幹Π設計成可利
第6頁 587927
五、發明說明(3) 在一具體例中,連接元件1 〇設計成可與第一和第二 分離。在第2和3圖具體例中,於釘幹丨丨或u,標示2 4的位 置進行分離。為此目的,一釘幹部包括螺孔,而另一釘幹 部包括螺件,可旋入螺孔内。此項連接如連接點2 ·4簡略表 示。螺孔亦可直_設在釘頭2 1,而釘幹丨1則在其朝釘頭 ,具有相對應形狀的螺件,可與螺孔舞合,把二部螺合在 一起0 在第2圖所示具體例中,要先把釘幹丨丨從釘頭2〗旋 ,使釘頭21可從腔孔22的自由端引入腔孔内,在圖示位 ,再旋上釘幹11,即達成圖示連接。. 如第2圖進一步透示,鄰接底部23
向外擴張成漏斗狀,故釘幹丨丨可姆-Λ 疋一服^ 〇 動。 队 J杆H J經一面角相對於套節20樞 在釘頭2 1引入後 釘頭的側面為球形, ^ 2 1的側面,壓力元 要容納的桿28直 :;可見1部進一步 发自〇界定凹溝31 < 筒括陽螺紋 螺陽螺紋32相 作動的第時’在上述 二部1 3或其 ,在腔孔22内插入壓力元件26,朝向 相當於釘頭21的半徑。在背離釘 匕括圓筒面27,在此的圓筒直徑幾 ί J使桿2 8可放入凹部2 7内。由第2 Ί成U形凹溝3丨與腔孔2 2共軸,以 ,—如第二部13,在鄰接 1於2節20的另-端延伸到,與圓 對‘、Γ 8的直杈。亦設有螺帽33,其 預備的連接部,i Λ U形凹溝14内卩。再^把桿18插入單軸向 再·利用螺帽19把桿18
587927
五、發明說明(4) 固定。其次,導引套節20,把第二桿28納入。中間桿2 入後,把螺帽33鎖上·。螺帽不但把桿28固定,也經由桿28 和壓力元件26對釘頭21施壓,把釘頭21固定在其軸向位 在第3圖所示具體例中,套節20、壓力元件26、釘頭 2,1、桿2 8、螺帽3 3,全部細節均與第2圖中的第一部1 2相 ‘ 准苐一部的設計並非單軸向,而是多軸向連接。此第 一部1 2與第一部1 2呈反向對稱。套節、釘頭、壓力元件 、桿、螺帽等全部組件.,與第一部1 2的相對應組件配合。 組合時’與上述具體例同樣,釘幹u,可沿線24藉螺合脫 離。在釘頭2 1插入後,釘幹1 Γ的二部即彼此牢牢連接。
…操作時,按上述參照第一部丨2連接,在固定之前,各 套節20均朝要容納的桿18, 28定向,再放入桿,利用螺帽 1 9,3 3固定。從螺帽經由桿n 2 8和壓力元件施壓,最德★ 是把釘頭固定於位置。 ^
在圖上未示的修飾具體 接其自·由端包括另一陰螺紋 上已知方式把螺合鎖定。 在上述具體例中,任何 的f由端插入。在修飾具體 ^郎。釘頭再從腔孔22背離 %和套環保持在腔孔内。重 =自由邊緣,向外呈錐形擴 幹間之多軸向運動。 例中’套節2 0或第二部都在鄰 ,可旋入内螺釘,以便按技藝 情況下,釘頭2 1均從u形凹部 例中’腔孔2 2可延伸穿過全部 臂的末端插入’以要套合的鎖 點在於包圍釘頭朝向釘幹丨丨末 大’以容許在套節和釘頭或釘
第8頁 587927 五、發明說明(5) - 第4圖所示具體例就釘幹u,、釘頭以、桿18或28,和 二巾S U i L3,完全配合第3圖所述具體例。套節3 4設計不 :=2 3 4包括第一端3 5和對立的第二端3 6,設有腔孔 山q = : 1的對稱軸線37共軸。又有U形凹部39,從第一 ^ A榼跨對稱線3 9延伸,U形凹部以二臂4 0,4 1界定。 ,鄰,第端35,二臂40, 41包括陽螺紋42。u形凹部39的 直徑等於或稍大於桿18或28的直徑,並大到使桿可引入凹 ί 2二利用〇形凹部側面導弓1。一如上述具體例形成陽 ”、’·'形凹部底’與U形底的距離比要容納的桿直徑為 小。再者’在上述具體例中,設有螺帽33,與陽螺紋42合 作。
與上述具體例不同的是,共軸腔孔的圓筒段43遠伸到 離第二端36的預設距離,由此以錐角呈錐形延伸至第二端 36。又設壓力元件44,其外表面在側向包圍釘頭21的區域 4 5内呈朝第二端3 6的錐形,其錐角與腔孔的錐形區者相當 。錐形區包括指向第二端3 6的長孔4 6,朝向此端開口。由 於適應腔孔38和壓力元件44間的錐面,在完全插入狀態時 會自鎖。按EP 0732381 β已知方式,壓力元件包括第一端 47和對立的第二端48。鄰接第一端設有基本上圓筒形段, 其外徑選用成使壓力元件可滑入圓筒形段43内。由圖可見 ,壓力元件在第二區包括球形段狀凹部45,朝第二端48開 口 ,以容納釘頭。在其他方面,套節34和壓力元件44配合 上述ΕΡ 0732081之内容,於此列為說明書的一部份。 第4圖所示元件是反向對稱構成,故釘幹η,外端的設
第9頁 587927 五、發明說明(6) 計是,其釘頭、套節、壓力元件,均與上述一致。 操作時,把壓力元件從第一段3 5插入套節3 4内。釘頭 21由第二端36插入或壓入區45内。桿28即位於剩餘U形長 孔内,螺合於外螺帽3 3,對桿2 8施壓,藉此施壓於包圍釘 頭21的壓力元件44,其方式為使桿28和球形釘頭21固定其 位。其程序與對立側相同。 此方式亦容許釘幹1 Γ樞動通過預設二面角,並繞對 稱軸線3 7,故可定向並適應要連接的桿或帶螺栓的桿。 另外,元件亦設計成有套節的釘頭如第4圖所示,而 另一釘頭造形為第2圖所示單軸向方式。 - 在上述具體例中,連接元件始終就桿的連接加以說明 。以同樣方式,連接元件亦可連接二螺釘之二螺幹,或一 螺釘之螺幹和一桿,並加以固定。
第10頁 587927 圖式簡單說明 第1圖為應用透視圖; 第2圖為連接元件第一具體之斷面圖 第3圖為連接元件第二具體之斷面圖 第4圖為修飾具體例之斷面圖。

Claims (1)

  1. 587927 六
    申請專利範圍 > 1 · 一種連接原件(1 0 ),具有連接部,^^口不〜山 ,各有一部份(12,13,12,)可供連接二桿狀端-和, =接部伟2二:4,8),用於骨絡或脊椎穩定,其特ir牛 ,接口P係桿狀,而至少其中一 =文為, 向之元件(20, 21,26, 33 )者。筏P係自又汁成令吟多軸定 2 ·如申請專利範圍第1頂夕4 ^ _ (13)係單軸向連接於連 ' 元件,其中第二部 3·如申請專利範園第/項 1 2 ·)係連接成可多軸定向者、。連接几件,其中二部(12, 4·如申請專利範園。、 (12)包括釘頭(21),在 、之連接元件,其中第一部 軸定向的元件(1〇),包 2向桿狀元件(28);和容許多 ),一方面可容納桿狀元件疋件(2 0 ),有容納孔(3 1,3 2 及螺帽(33)或螺釘,將 另方面為釘頭(21),以 于狀疋件(28)加以固定者。
TW091100275A 2001-01-12 2002-01-11 Connecting element TW587927B (en)

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DE10101478A DE10101478C2 (de) 2001-01-12 2001-01-12 Verbindungselement

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US (1) US7276069B2 (zh)
EP (1) EP1261288B1 (zh)
JP (1) JP4094426B2 (zh)
DE (2) DE10101478C2 (zh)
TW (1) TW587927B (zh)
WO (1) WO2002054965A1 (zh)

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EP1261288A1 (de) 2002-12-04
WO2002054965A1 (de) 2002-07-18
DE10101478C2 (de) 2003-03-27
JP4094426B2 (ja) 2008-06-04
US20030114852A1 (en) 2003-06-19
DE10101478A1 (de) 2002-07-25
US7276069B2 (en) 2007-10-02

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