CN1301687C - 在外面固定断骨的装置 - Google Patents
在外面固定断骨的装置 Download PDFInfo
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- CN1301687C CN1301687C CNB03803686XA CN03803686A CN1301687C CN 1301687 C CN1301687 C CN 1301687C CN B03803686X A CNB03803686X A CN B03803686XA CN 03803686 A CN03803686 A CN 03803686A CN 1301687 C CN1301687 C CN 1301687C
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- 208000010392 Bone Fractures Diseases 0.000 title abstract 3
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 31
- 238000010079 rubber tapping Methods 0.000 claims abstract description 6
- 239000012634 fragment Substances 0.000 claims description 5
- 230000004308 accommodation Effects 0.000 claims description 2
- 208000006670 Multiple fractures Diseases 0.000 abstract 1
- 230000003100 immobilizing effect Effects 0.000 abstract 1
- 239000007799 cork Substances 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/60—Surgical 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
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6416—Devices extending alongside the bones to be positioned with non-continuous, e.g. hinged, pin-clamp connecting element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
- A61B17/8635—Tips of screws
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (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)
Abstract
本发明涉及在外面固定断骨的装置,该装置具有一个在身体外沿断骨布置的多铰杆,该多铰杆具有在其方向上能相对调节的并能在调定方向上被固定的环节(1),这些环节(1)的一部分具有一个可转动地保持在其中的骨钉(7),用于锚固在骨头里,至少其中一个骨钉(7)的尖端被构造成有自攻螺纹(8)的螺钉的形式,其特征在于,其尖端呈螺钉形式的所述骨钉(7)在其杆上通过自锁螺纹(10)可拧动地在所属环节(1)中被导向,其中在该骨钉尖端上的螺纹的螺距和该自锁螺纹的螺距大致相等。
Description
技术领域
本发明涉及用于在外面固定住断骨的装置。
背景技术
这种装置由DE19746687A1公开了。这种已知装置的骨钉具有光滑的尖端,在这里,可转动地支承在这些环节里的骨钉在使用小型电钻的情况下尤其用手施压地被压入骨头里。被压入的骨钉借助拧紧到环节上的锁紧螺母被固定在骨钉所属的装置环节上。
已知装置的不足之处在于,骨钉压入要求相当高的设备成本,而且由于骨钉尖端是光滑的,所以为了可靠地锚固就必须把骨钉压入骨头里比较深,在此方法中由电钻提供的且也是必需的高转速导致骨头在骨钉周围不必要地强烈损伤。
发明内容
因而,本发明的任务是改进上述的在外面固定断骨的装置,以保证在骨头负载尽可能小的情况下实现骨钉的可靠固定。
为了完成上述任务,本发明提供一种在外面固定断骨的装置,该装置具有一个在身体外沿断骨布置的多铰杆,该多铰杆具有在其方向上能相对调节的并能在调定方向上被固定的环节,这些环节的一部分具有一个可转动地保持在其中的骨钉,用于锚固在骨头里,至少其中一个骨钉的尖端被构造成有自攻螺纹的螺钉的形式,其特征是,其尖端呈螺钉形式的所述骨钉在其杆上通过自锁螺纹可拧动地在所属环节中被导向,在骨钉尖端上的螺纹的螺距和自锁螺纹的螺距大致相等。
利用这样的骨钉实施方案,就能用手或在必要时借助适当工具如板手或螺丝刀将骨钉拧入骨头里,并且此时就象在软木塞里的软木塞起子那样,它被固定在骨头里。与已知的骨钉相比要小得多的钻入深度已足以使骨钉可靠固定在骨头里。此外,可以实现被拧入的骨钉在没有其它措施的情况下能保持在其转动位置上,从而避免了从骨头里自动退出来。
根据本发明,为使骨钉杆在该环节里导向移动,设有一个能转动但无法沿其轴线方向移动地保持在该环节里的并可用手操作的滚花螺母,尖端成螺钉形式的骨钉的自锁螺纹与滚花螺母啮合。由此一来,能够使支承骨钉的装置环节在骨钉被拧入后相对骨头进行高度调节。在这里,待固定的骨头是手足骨头。
附图说明
以下根据附图来说明本发明的一个优选的实施例。附图所示为:
图1表示一个装在手指上的用于在外部固定断骨的本发明装置,
图2(a)-2(d)以侧视图、后视图、从俯视图和立体视图来表示一个装置环节,它装有可被拧入骨头里的骨钉。
具体实施方式
如图1所示,固定装置具有一连串的环节1,这能从图2中更好地看到,它们相互万向铰接在一起。每个环节在一端有一个球2并在另一端有一个球窝3,在这里,一个环节的球2分别装入下个环节的球窝3里。通过这种方式万向铰接起来的环节的相对位置通过包围球窝的夹紧箍6来固定,通过该夹紧箍,使因有缝11而能弹性变形的球窝3被压向容纳于其中的球2。
常见形式的骨钉位于固定装置的端部上,这些骨钉例如可以用一个电钻夹住钉头4并在钉入骨头后用一个锁紧螺母5抗转动地固定在其所位于的环节上。
一个体现本发明的骨钉7位于一个在两端之间的环节上。该骨钉由一个螺钉构成,它有一个尖端,在尖端上有自攻螺纹8,这与自攻螺丝或软木塞起子相似。当拧入骨头时,骨钉就钉在骨头里。这样一来,当钻入深度小于在传统骨钉中时,正如它在固定装置的两端所示出的那样,已经能获得稳定性。
骨钉7在环节1里的安装借助一个滚花螺母9完成,该滚花螺母可以转动但轴向不能移动地固定在环节1里。骨钉7通过自锁螺纹10与滚花螺母9共同作用。如果用手从外面紧紧捏住的可从外面抓住的滚花螺母9(如果需要的话)并旋转螺钉头,或许有时要借助工具但也也要用手,则骨钉7就移入骨头里。自锁螺纹10的螺距大致相当于自攻螺纹8的螺矩。该自锁能使骨钉7在不需要其它措施的情况下被锁定住,以防止不希望有的旋转。
若在把骨钉7拧入骨头里后将骨钉7固定住并拧动滚花螺母9,则装有骨钉7的环节就可以相对骨头进行高度调整。螺纹自锁在这里也用于使这次调整的位置不会自动发生变化。
在所示的实施形式中,只是按照本发明地构成了位于中间的骨钉,而位于端部的骨钉是传统形式的。但当然也可以按照与图1中的位于中间的骨钉一样的方式构成多于一个的骨钉和所有骨钉。
Claims (3)
1.在外面固定断骨的装置,该装置具有一个在身体外沿断骨布置的多铰杆,该多铰杆具有在其方向上能相对调节的并能在调定方向上被固定的环节(1),这些环节(1)的一部分具有一个可转动地保持在其中的骨钉(7),用于锚固在骨头里,至少其中一个骨钉(7)的尖端被构造成有自攻螺纹(8)的螺钉的形式,其特征在于,尖端呈螺钉形式的所述骨钉(7)在其杆上通过自锁螺纹(10)可拧动地在所属环节(1)中被导向,其中在该骨钉尖端上的螺纹的螺距和该自锁螺纹的螺距大致相等。
2.按权利要求1所述的装置,其特征在于,为使该骨钉杆在该环节(1)里导向移动,设有一个能转动但无法沿其轴线方向移动地保持在该环节里的并可用手操作的滚花螺母(9),尖端成螺钉形式的所述骨钉(7)的自锁螺纹(10)与该滚花螺母啮合。
3.按权利要求1或2所述的装置,其特征在于,所述待固定的骨头是手足骨头。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20202049.5 | 2002-02-11 | ||
DE20202049U DE20202049U1 (de) | 2002-02-11 | 2002-02-11 | Vorrichtung zur externen Fixierung von gebrochenen Knochen |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1630489A CN1630489A (zh) | 2005-06-22 |
CN1301687C true CN1301687C (zh) | 2007-02-28 |
Family
ID=7967618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB03803686XA Expired - Fee Related CN1301687C (zh) | 2002-02-11 | 2003-02-10 | 在外面固定断骨的装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20050085754A1 (zh) |
EP (1) | EP1478289A1 (zh) |
CN (1) | CN1301687C (zh) |
AU (1) | AU2003208824A1 (zh) |
CA (1) | CA2475636A1 (zh) |
DE (1) | DE20202049U1 (zh) |
WO (1) | WO2003068084A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104487010A (zh) * | 2012-07-25 | 2015-04-01 | 奥瑟菲克斯有限公司 | 用于临时和/或永久固定应用的外部模块化固定***的长销和外部模块化固定*** |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0107708D0 (en) | 2001-03-28 | 2001-05-16 | Imp College Innovations Ltd | Bone fixated,articulated joint load control device |
US7491221B2 (en) * | 2004-03-23 | 2009-02-17 | Stryker Spine | Modular polyaxial bone screw and plate |
EP3096697B1 (en) * | 2014-01-24 | 2017-08-09 | Orthofix S.r.l. | Elongated pin for application of an external fixator |
US10342580B2 (en) | 2016-03-01 | 2019-07-09 | Pbd, Patent & Business Development Ag | Bracket for external fixation of bones |
US9936976B2 (en) * | 2016-03-01 | 2018-04-10 | Pbd, Patent & Business Development Ag | Bracket for external fixation of bones |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1789060A (en) * | 1928-09-29 | 1931-01-13 | King Scheerer Corp | Bone-fracture clamp |
US4185624A (en) * | 1976-05-31 | 1980-01-29 | Giulio Gentile | Device for externally exerting a holding action on bone tissues |
US4768524A (en) * | 1986-02-28 | 1988-09-06 | Hardy Jean Marie | Device for immobilizing a bone structure, especially intended for orthopedic use |
EP0490812A1 (fr) * | 1990-12-10 | 1992-06-17 | Jaquet Orthopedie S.A. | Fixateur externe pour l'ostéosynthèse |
CN2194702Y (zh) * | 1994-06-07 | 1995-04-19 | 青岛市骨伤科医院 | 踝部骨折自动复位环形外固定支架 |
DE19746687A1 (de) * | 1997-10-22 | 1999-05-06 | Gerd Dr Werding | Vorrichtung zur externen Fixierung von gebrochenen Knochen, insbesondere der Extremitäten |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2081293A (en) * | 1935-11-05 | 1937-05-25 | Charles D Davis | Fracture pin |
US2333033A (en) * | 1943-06-11 | 1943-10-26 | Leslie E Mraz | Bone splint |
DE3701533A1 (de) * | 1987-01-21 | 1988-08-04 | Medi System Gmbh | Osteosynthesehilfsmittel |
US5254118A (en) * | 1991-12-04 | 1993-10-19 | Srdjian Mirkovic | Three dimensional spine fixation system |
US5520688A (en) * | 1994-07-20 | 1996-05-28 | Lin; Chih-I | Vertebral auxiliary fixation device |
US5846245A (en) * | 1995-10-20 | 1998-12-08 | New York University | Bone-adjusting device |
DE29520312U1 (de) * | 1995-12-21 | 1996-02-08 | Leibinger Medizintech | Knochenschraube |
US6056748A (en) * | 1998-02-20 | 2000-05-02 | Weiner; Lon S. | Modular fixator assembly |
-
2002
- 2002-02-11 DE DE20202049U patent/DE20202049U1/de not_active Expired - Lifetime
-
2003
- 2003-02-10 US US10/504,094 patent/US20050085754A1/en not_active Abandoned
- 2003-02-10 CN CNB03803686XA patent/CN1301687C/zh not_active Expired - Fee Related
- 2003-02-10 AU AU2003208824A patent/AU2003208824A1/en not_active Abandoned
- 2003-02-10 CA CA002475636A patent/CA2475636A1/en not_active Abandoned
- 2003-02-10 WO PCT/EP2003/001293 patent/WO2003068084A1/de not_active Application Discontinuation
- 2003-02-10 EP EP03706468A patent/EP1478289A1/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1789060A (en) * | 1928-09-29 | 1931-01-13 | King Scheerer Corp | Bone-fracture clamp |
US4185624A (en) * | 1976-05-31 | 1980-01-29 | Giulio Gentile | Device for externally exerting a holding action on bone tissues |
US4768524A (en) * | 1986-02-28 | 1988-09-06 | Hardy Jean Marie | Device for immobilizing a bone structure, especially intended for orthopedic use |
EP0490812A1 (fr) * | 1990-12-10 | 1992-06-17 | Jaquet Orthopedie S.A. | Fixateur externe pour l'ostéosynthèse |
CN2194702Y (zh) * | 1994-06-07 | 1995-04-19 | 青岛市骨伤科医院 | 踝部骨折自动复位环形外固定支架 |
DE19746687A1 (de) * | 1997-10-22 | 1999-05-06 | Gerd Dr Werding | Vorrichtung zur externen Fixierung von gebrochenen Knochen, insbesondere der Extremitäten |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104487010A (zh) * | 2012-07-25 | 2015-04-01 | 奥瑟菲克斯有限公司 | 用于临时和/或永久固定应用的外部模块化固定***的长销和外部模块化固定*** |
CN104487010B (zh) * | 2012-07-25 | 2017-05-10 | 奥瑟菲克斯有限公司 | 用于临时和/或永久固定应用的外部模块化固定***的长销和外部模块化固定*** |
Also Published As
Publication number | Publication date |
---|---|
CA2475636A1 (en) | 2003-08-21 |
WO2003068084A1 (de) | 2003-08-21 |
DE20202049U1 (de) | 2002-06-13 |
CN1630489A (zh) | 2005-06-22 |
US20050085754A1 (en) | 2005-04-21 |
AU2003208824A1 (en) | 2003-09-04 |
EP1478289A1 (de) | 2004-11-24 |
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