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TW201023815A - Receiving part for receiving a rod for coupling the rod to a bone anchoring element and a bone anchoring device with such a receiving part - Google Patents

Receiving part for receiving a rod for coupling the rod to a bone anchoring element and a bone anchoring device with such a receiving part Download PDF

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Publication number
TW201023815A
TW201023815A TW098143498A TW98143498A TW201023815A TW 201023815 A TW201023815 A TW 201023815A TW 098143498 A TW098143498 A TW 098143498A TW 98143498 A TW98143498 A TW 98143498A TW 201023815 A TW201023815 A TW 201023815A
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head
rod
ring
accommodating
locking ring
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TW098143498A
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TWI507168B (zh
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Lutz Biedermann
Wilfried Matthis
Berthold Dannecker
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Biedermann Motech Gmbh & Co Kg
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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
    • 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
    • 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

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

Description

201023815 六、發明說明: 【發明所屬之技術領域】 本發明係關於-種容納件,可供容納桿 於骨骼固定元件’並關於有如此容納件之sc t頭部容納部’而鎖定於容納件内。容納件又== 牛 藉施於頭部容納部的預力,夾持頭部,在手術當中 置。鎖環可運動至最後較位置,以鎖定頭部。骨ς = 置可例如以多軸式骨骼螺釘的形式實施。 疋裝· e 鲁 【先前技術】 已知有各種設計之多軸式骨骼螺釘,其中 持,以鎖定骨絡螺釘之轉動位置。 f頌相側面失 ㈣USJ,672,176記載·"種骨路螺釘,具備容納件,有錐形 ii伯ϊ錐形壓力70件,由上面和侧面施壓於頭部。若錐體 角^值在特定範圍内,即發生壓力元件自鎖於容納件内 鎖’同時,桿件還能運動,以容 跑仍彼5^’098記載一種骨路螺釘,供連接於脊柱,包括 牛和容納器構件’在桿容納凹溝的底部設有細縫,其 合金製之二環形壓縮構件,分別設在容納器 卜溫度上升時,壓縮構件在容納㈣件部份 周圍收縮’而夾持在凹溝内。 ㈣!°07/038350 Α2揭示一種骨絡固定器對支持桿之連 典?含連接器本體和帽蓋。連接器本體有插座,可供 = 疋器插入、轉動角度和取出。設有軸套,其造型可以 ,時;套在連接器本體上,其中軸套容許骨絡固定器插 田丄f動至暫鎖位置’此時轴套容許轉動角度,但防止骨骼 除’並可運動至鎖定位置,轴套至此防止骨絡固定 器轉動角度和卸除。軸套延伸於插座的全長。 201023815 【發明内容】 本發明之目的,在於提供一種改進容納件,可容納桿 件,把桿件聯結於骨骼固定元件,以及具有如此容納件之骨 骼固定裝置,小型,同時在手術當中提供安全處置,以及安 全最後鎖定。 々此目的是以申請專利範圍第1項的容納件,和申請專利 範圍第15項之骨骼固定裝置解決。進一步發展列於申請專利 範圍附屬項。 、預鎖環把頭部預鎖於頭部容納部,在手術中,防止頭部 脫離容納件本體,也防止頭部相對於容納件本體運動。如 此,在手術當中,可以安全處置骨骼固定裝置。
.本發明容納件和骨骼固定裝置,只包括少數元件,減少 製造成本’並方便處置。使耻骨麵定元件辆部從侧面 持⑽理,節省安全夾持頭部必要之力量。容納件之 以進-步減少高度和底部外徑之維度,特別適用 ίίϊ,ϋί處,諸如頸椎手術領域如'兒科應用、、腫 瘤和最小開孔應用。 限 即可手術之前備有 提供不同容納件之各種骨骼固定器 模組系統。 由於鎖環高度較頭部容納部高度小, ===部以= 開口端,使魏在底端雛。 蚊伸_部容纳部的 鎖環可在頭部未被夾持的位置和 j動。鎖環可解除自如地保持於二末端 塞 可明白 若鎖環有彎曲_ ’鎖環和頭部容__卩不會發生阻 =明其他特點和優點,由參照附圖說明其具體 201023815 【實施方式】 :r合具=為定=容頭^ 内螺_式,供桿件6保固於容納件本體f:閉=呈 ==?環8,把頭部鎖定於容^ 鎖環80 ’把頭部預鎖定於容納件本體5心 内’和預 特別由第3-6圖可見,容納件本體 ^ t 9a 9 ^ 仅’比月絡固定元件的頭部3窗私,丨ιθ .. ^ 的直 ^轴第二魏u,從=9=以== 5延 容納部9内設有實質上υ形凹部二第ί: 件6 1 申if 一ί % ’凹部12直徑比桿件6直徑稍大,使桿 :6”可置凹部内,在其内導引。利用凹部12形自Ϊ: ^、負陰歡13。陰·可為公侧紋、平板螺 紋、負角度螺紋、鋸齒螺紋,或任何其二取螺 式以使用平板螺紋或負角度螺紋為佳,在内螺螺紋型 可防止股部12a»12b撐開。凹部12深度使桿侔6知 、 ^插,股,之間。在凹部底和股部12aJ2b間設二 14 ’形成徑孔11末端。 一& 在二二二桿件容納部内設有缺口 - 容納件本體5的桿件容納部9又包括複數丘轴 的9ii伸至離第一端一段距離,此距離相當於大約降 螺紋13的長度。開縫15在第二端%㈤σ,延伸 = U形凹部12内之平坦段14,詳見第^、3、6圖。 201023815 =提=二Γ15 ’以一開縫以上為佳。開縫數按照 =祕的撓性程度而設。可視材料和壁厚和/或其他因素 骨路二包括頭部容納部16,提供 ,二端外斜縮,在第二端9b對4:==; 區域内斜縮。開口端緣至少在頭部3最大直徑 Ο ,別由第3至5圖可見’桿件容納部 16 ^ % 件容“=7。的外徑大。因此,頭部容納部16相對於^ Π3職,細示趟科,呈 Ο 奋納部9的開縫15,因而形成連 端9b,連績到桿件 巧上7延伸人桿件容納部。_f4可 ^或多或少’視頭部容納部16所需撓了15數’惟 令納部16側面設有間縫2〇,鄰 $。此外’在頭部 :部12,如第6圖所示。開縫鄰20近以=實質上u形 納部^部容納部16的撓性使©定元件的頭部3,可f距離為 而插入,並藉壓縮頭部容納部:夾持。以部容 二有凹=積鄰近開口端 在圖示具_,具有_部,i方形ϋ哪面積17a 201023815 心1ί參見第1、2、7、8圖說明鎖環8。鎖環8有實質㈣ 表外徑實質上相當於容納件5的桿件容二9 16 ’詳如第2圖所示’當鎖環8在頭部3鎖粒^令 鎖環8和容納件本體5間有一段距離。 夺 鎖環8在其内侧有彎曲内表面部8a。曲度朝 Ϊ心曲3内表面部%可有球形曲率。其他_曲率亦屬Ϊ ❹ 2鎖ΐ可沿頭部容納部16外表面滑動,因而在d 時,對頭部容納部16之壓縮遞增。 ’月動 鎖環8在其面向第二端%之側面,又有二凸 對立當娜8在頭部3尚未被夾持二時立 ί H Ϊ突出到實質上U形凹部12之底部以上, 缺24内。凸部21之自由端22可彎曲,尤其是南肉缴 曲f與桿件6相當。鎖雜置方式是包圍容納件‘體上:; 納部16,使凸部位於凹部^之位置。突入凹部12内^ 凸4 21 ’在桿件未插入時,藉此防止鎖環轉動。° 寸,的挽性和頭部容納部在開口端17的尺 r二、-從自由端17組合於頭部容納部16上,以安裝綱 。由於頭部容_的外徑比桿件 = 上長;二㈣有實質 滑。預鎖環之内徑比頭部容二16開口 280a可圓 之外徑稍大。凹部17a和預丄60 17所设凹部m 從開口端17絲到頭部容:環之維度是,當預鎖環80 部16,故骨絡固定元件之頭^ 3 ^^^縮到頭部容約 預鎖定。預鎖定意咮在手術之際引起的=所== 201023815 =元件1相對於容納件本體5之角度位 件本體或螺釘元件顧外加力量時,才能解除I、有對谷納 曰j第11圖放大所示具體例中,預鎖環80的 =長方形’可套入頭部容納部之長方形凹部17 S他幾何形狀。例如’第12圖所示,鎖環8 鹿、= η可斜縮,而預鎖環80”的歸猜口端 參 m 8〇”,有圓職面,套合於凹部。亦可構思其他H’。而預鎖環 7有螺敌’相當於股部所設陰螺紋U。若使用防 螺紋形式,單一封閉元件,右吏= 由生内螺釘7和骨絡狀元件1,係 生材料。預鎖環亦由此等材; 像圏環=種可_性_成,顯示 裝錯ίΐ固定裝ί可與容納件本體5的頭部容納部%上所安 及插入的螺釘頭’和安裝於凹部一 3 能。it見圖第矣3 L圖說明骨絡固定裝置對頭部鎖定之功 況’即鎖環8在第一位置Pi,接近 頭部3 ===二之第二端%。骨絡固定元件的 -古:ΓΓ γ 間18内,而預鎖環80尚未安裝。可 此 環:=”在::=頭 201023815 力,以預鎖狀況保持於頭部容納部16内。在此狀況下,只 施加額外力4 ’逼使容納件本體5滅於頭部3運動, 使頭部3錢部容納勒_。絲賴環8Q時,頭部3 ^ 再能夠從頭部容納部16除去。 17圖所示’為了把頭部3最後鎖定於頭部容納 =”鎖環8向下運動。例如當内螺釘7壓住桿件6 =由凸部21壓住鎖環8時,即可完成。在内螺在丁 7旋 ❹ Ο 向下移動,直至f崎8a結合於頭部容納部 表面部。當鎖環在_ 3於骨㈣定裝置的螺釘 徑位置時’鎖環的料部8a對聊容納部 止鎖環8再向下運動因_部3被夾持,最後被較。同時防 甘路固定裝置可由廠商,或在手術準備過程中,或任何 外科醫師宜在手術之前選擇必要的容納件 裝置㈣按照臨床細上特殊要求喊。骨胳固定 齡㈤可選擇111定段直徑、長度和其他特點之適當骨 固—疋^。因此,提供模組系統,含有容納件和若干骨絡 固疋7〇件,即可個別選用和適應。 呷仍況:,當内螺釘旋鬆時,由於有預鎖環80,頭 邛仍…、破夾持。如此可進一步調節桿件。 邻4把預成的骨絡固定裝置旋人骨_。頭部的凹 i P 過第一徑孔10存取。鎖環在在其第一位 in鎖為使谷罐與其要連接的桿件正確對準,以 手動或應用器具對容納件施以額外力量。一 m峨㈣地s,丄 衊直至壓住桿件。桿件壓住實質上U形凹2 $ f結合於凸部21之自由端22,並向下移^鎖環8。當鎖 =8朝頭縣納部的自由端π運動,乃屋 因而鎖定頭部。由於鎖環8所施力量’是從侧面“於^曲 201023815 尺寸。最後旋緊内螺釘,把厚可減小,裝置可滅小 可有任何其他形狀%tn例1骨絡固定元件的頌部 針,容許螺針元件相對因2有單轴式骨縣螺 可在頭部容納部之内部早一轴線轉動。頭部3亦 步修改中,容納件 ^ 2 18内呈錐形或其他形狀。進一 容性塑膠材料製成 ,至v頭部容納部I6,係由生物相 可省略。 /、有某程度的彈性。在此情況下,開縫 面可平坦或其環他形狀。例如,自由端表 度加;部容納部可有傾斜開心 17,使頭部在一方向轉動角 部3 I顯示彈性的材料製成,則在螺釘元件的頭 頭部容納部 1外安表裝面 =〇。 縮。 心外表面可呈球形,而鎖環的内表面可斜 【圖式簡單說明】 ί; iiC裝置-具體例之分解透視圖; 第3 mi银圖骨骼固定裝置組合狀態之透視圖; ΪΖίΐ 一具體例容納件本體之透視圖; 圖容納件本體之侧視圖·, 第6圖i第2容納件本體轉動90。之侧視圖; 『圖為二=:本體之俯視圈; ; 第^圖為第9圖預鎖環沿Β·Β線之斷面圖; 圓為第1和2圖容納件斷面放大圖,第一具體例之 201023815 預鎖環再加放大; 第12圖為第1和2圖容納件斷面放大圖,第二具體例之 預鎖環再加放大; 第13圖為第1和2圖容納件斷面放大圖,第三具體例之 預鎖環再加放大; 第14圖為第1和2圖容納件斷面放大圖,第四具體例之 預鎖環再加放大; 第15圖為骨骼固定裝置在第一位置之斷面圖; 第16圖為骨骼固定裝置在第二位置之斷面圖; 第17圖為骨骼固定裝置在第三位置之斷面圖。 【主要元件符號說明】 1 骨骼固定元件 2 螺紋幹部 3 骨骼固定元件頭部 4 頭部凹部 5 容納件本體 6 桿件 7 封閉元件 8 鎖環 8a 鎖環彎曲内表面部 8b 鎖環斜縮外表面 9 桿件容納部 9a 桿件容納部第一端 9b 桿件容納部第二端 10 第一徑孔 11 第二徑孔 12 U形凹部 12a,12b自由股部 13 陰螺紋 14 平坦段 15 開縫 16 頭部容納部 17 頭部容納部開口端 17a,17a’,17a” 凹陷面積 18 空心段 19 開縫 20 開縫 21 凸部 22 凸部自由端 24 缺口 80,80’,80”,80”’ 預鎖環 80a 預鎖環下方外緣 80b,80b’,80b”預鎖環内輪廓 Pi 鎖環第一位置 12

Claims (1)

  1. 201023815 七、申請專利範圍: 包含1:.-種容納桿件把桿件聯結於骨路固定元件用之容納件, 容納件本體(5);具有 含;和 納部⑽有開=件 ❹ 部,把=i)於崎,㈣觀力於頭部容納 環施力容(:’::定)狀 2. 如申請專利範圍第、 ,,8〇”,)藉施於頭部容納部3^;其中預鎖環(_,, 者。 上之預力,簡於頭部容納部 3. 如申請專利範圍第“戈 在頭部預鎖定位置,可相對於件’其中鎖環⑻ 者。 於預鎖環(80,8〇,,8〇,,,8〇,,,)運動 4. 如申請專利範圍第1 C 17f^(8〇^〇^^8〇-) ^ 5·如申請專利範圍第丨 i對抗鎖%運動者。 8〇,,,80,,,)係配置在接近頭=巧,其中預鎖環⑽,8〇, 者。 納。Kl6)之開口端⑼ 6. 如申請專利範圍第丨 80”,80”’)可從開口端(17)安裝$、’件’其中預鎖環(80,80,, 7. 如申請專利範圍第i項钿 , 80,,,80”,)具彈性者。 納件,其申預鎖環(80,80, 8·如申請柄朗第!項 ’ ’ 、、件’其令碩部容納部 201023815 ^ (8) ^ 小於頭部容容納件,其中鎖環(8)高度 10.如申請專利範圍第丨項之 由桿件施麼下運動者。 、牛’其中鎖環⑻係經 11·如申請專利範圍第】項之容納 第一础具有第一端(9a)和第二端(%),以刀、知件容納部 ^ΤΨ%%^Μ (12) ^ (9)具有第一端(9a)®和第第mr而’其中桿件容納部 係配置在第:端⑽側第且—二(二:,崎納部(1: 側之夕^徑’比桿件容納部(9)在第二;在第二端 13. 如_請專利範圍第i項之容U,)H則、者。 (5)包括複數開縫(19),對開 n 、中谷納件本體 ^ 〇5,19) - 14. 如申請專利範圍第! Ί(9)内者。 在頭部容納部⑻τ部者。♦納件,其中_環係配置 Φ 15. 一種骨骼固定裝置,包括申請專利範圍笛,s ,(1)f 閉元件胳固定裝置,其中設有封 内者。 、把杯件(6)保固於凹部(12)
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KR20100074013A (ko) 2010-07-01
JP5624760B2 (ja) 2014-11-12
JP2010148874A (ja) 2010-07-08
US8506610B2 (en) 2013-08-13
US20100160976A1 (en) 2010-06-24
CN101828949A (zh) 2010-09-15
ES2375879T3 (es) 2012-03-07
EP2201902A1 (en) 2010-06-30
TWI507168B (zh) 2015-11-11
KR101528868B1 (ko) 2015-06-15
CN101828949B (zh) 2012-11-07

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