WO2003055399A1 - Clou centromedullaire - Google Patents

Clou centromedullaire Download PDF

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Publication number
WO2003055399A1
WO2003055399A1 PCT/CN2002/000924 CN0200924W WO03055399A1 WO 2003055399 A1 WO2003055399 A1 WO 2003055399A1 CN 0200924 W CN0200924 W CN 0200924W WO 03055399 A1 WO03055399 A1 WO 03055399A1
Authority
WO
WIPO (PCT)
Prior art keywords
fork
groove
bone marrow
marrow cavity
intramedullary nail
Prior art date
Application number
PCT/CN2002/000924
Other languages
English (en)
French (fr)
Inventor
Benwen Qian
Original Assignee
Benwen Qian
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Benwen Qian filed Critical Benwen Qian
Priority to KR10-2004-7010354A priority Critical patent/KR20040071770A/ko
Priority to JP2003555978A priority patent/JP2006500965A/ja
Priority to AU2002354077A priority patent/AU2002354077A1/en
Priority to EP02787332A priority patent/EP1495731A1/en
Priority to US10/499,655 priority patent/US20050107790A1/en
Publication of WO2003055399A1 publication Critical patent/WO2003055399A1/zh

Links

Classifications

    • 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
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • A61B17/7258—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping the bone
    • A61B17/7266—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping the bone with fingers moving radially outwardly
    • 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
    • A61B17/72—Intramedullary pins, nails or other devices
    • 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/2812—Surgical forceps with a single pivotal connection
    • 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
    • A61B2017/564—Methods for bone or joint treatment

Definitions

  • the present invention relates to a medical instrument dedicated to orthopaedics, and in particular to an instrument which can be directly penetrated into a fractured bone so that the fracture can be firmly combined together.
  • the fractured bone 1 is joined by a nail body 2 in the bone marrow cavity.
  • the nail body 2 is straight, the nail body 2
  • auxiliary nails 3 must be nailed radially on the surface of the bone marrow cavity.
  • the fractured bones can be connected together by the connection of the fractures.
  • a kind of intramedullary nail with a forked end appears.
  • this type of intramedullary nail can enter the bone marrow cavity, the forked body at the front end can support the bone marrow cavity, so that The intramedullary nail is directly fixed in the bone marrow cavity.
  • the angle at the front end of the intramedullary nail is too small, the effect of resisting the bone marrow cavity cannot be achieved.
  • the angle at the front end of the intramedullary nail is too large, It is not easy to enter the bone marrow cavity at the other end when traveling, and it must be clamped with surgical forceps.
  • the surface of the nail body is smooth, it is very easy to cause the surgical forceps to be difficult to hold on it, which is very inconvenient in use.
  • the technical problem to be solved by the present invention is to provide a front fork self-propelled intramedullary nail which can effectively overcome the above-mentioned defects and can be directly penetrated into a fractured bone so that the fracture can be firmly combined together.
  • the technical solution adopted by the present invention to solve its technical problem is that a front fork self-propelled intramedullary nail is mainly composed of a body, which is characterized in that one end of the body is provided with different directions. Fork rods extending in the direction and showing an open shape, and grooves extending in the axial direction are respectively provided on the outer sides of the fork rods; a clamp ring is nested in the grooves of the fork rods.
  • the present invention has the following beneficial effects.
  • the present invention has a reasonable structure and a clever idea.
  • the body When in use, the body can be inserted into one end of the fractured bone marrow cavity and advanced toward the other end of the bone marrow cavity.
  • the bead holding bone forceps are embedded in the groove, so that when the fork rod is moved forward, the beating head holding bone forceps will move along the groove, so that the When the fork rod is pushed into the bone marrow cavity of the other end, it can be held by the bead holding bone forceps without opening, and can smoothly enter the bone marrow cavity of the other end, and enter the bone marrow cavity of the other end. Only then is it fully opened slowly, so that the fork rods can be fixed therein without detachment, thereby achieving the purpose of connecting the broken bone marrow cavity together.
  • the free end of the fork rod is provided with a clip nested in the groove.
  • FIG. 1 is a schematic diagram of a conventional device
  • FIG. 2 is a schematic perspective view of the present invention
  • FIG. 3 is a schematic diagram of an intramedullary nail entering a bone marrow cavity according to the present invention
  • FIG. 4 is a schematic diagram of the intramedullary nail protruding outside the bone marrow cavity of the present invention.
  • FIG. 5 is a schematic diagram of a bead head bone holding forceps when holding an intramedullary nail
  • FIG. 6 is a schematic diagram of a bead head bone holding forceps for clamping an intramedullary nail according to the present invention
  • FIG. 7 is a schematic diagram of an intramedullary nail of the present invention entering another bone marrow cavity
  • FIG. 8 is a schematic view of an intramedullary nail according to the present invention combining a broken bone marrow cavity together. detailed description
  • a front fork self-propelled intramedullary nail is a device capable of fixing and combining a broken bone marrow cavity into one body.
  • the device is provided with a body 10.
  • a rod body, at the end of the body 10, is provided with fork rods 11 extending in different directions and extending in an open shape, and outside of the fork rods 11 are respectively provided with grooves 12 extending in the axial direction.
  • One end of the fork rod 11 gradually becomes shallower to the other end, and the free ends of the fork rods 11 may be nested with a clamping ring 20, which is a C-shaped ring in this embodiment, and the clamping ring 20 is nested in the groove 12 So that the fork rods 11 are restrained by the clamp ring 20 and are brought close together so that when the fork rods 11 begin to enter one of the ends of the fractured bone marrow cavity 40, they can be restrained by the clamp ring 20 and When they are close together, the body 20 can smoothly advance in the bone marrow cavity 40 at the end and move toward the bone marrow cavity 40 at the other end (as shown in FIG. 3) until the fork rod 11 on the body 10 is exposed at the break.
  • a clamping ring 20 which is a C-shaped ring in this embodiment
  • the clamping ring 20 is nested in the groove 12 So that the fork rods 11 are restrained by the clamp ring 20 and are brought close together so that when
  • the groove 12 can be naturally separated from the groove 12 by gradually becoming shallower, and the fork rod 11 can be slowly opened to a certain degree after entering.
  • the angle can further be fixed so that the body 10 is supported by the open fork rod 11 so as not to be detached from the bone marrow cavity 40 at this end. In this way, the fractured bone marrow cavity 40 can be connected together (as shown in Figs. 7 and 8). Show).

Description

髓内钉
技术领域
本发明涉及一种骨科专用的医疗器具， 特别是涉及一种可直接穿入 断裂骨头中， 而使该骨折处可牢牢结合在一起的器具。
背景技术
请参照图 1所示， 一般接合断裂的骨头 1接合方式， 不外乎是将一 钉体 2穿套在骨髓腔中， 但因该钉体 2是呈平直状， 故当该钉体 2进入 骨髓腔中时， 为防止由骨髓腔中脱落， 因此， 必须在骨髓腔表面的径向 钉入辅助钉 3， 同时， 为使该等辅助钉 3能准确抵压在该钉体 2上， 则 在手术时必须借由 X光仪器的辅助方能完成， 并且在断裂处借由连结件 的连结， 才能确实使该断裂骨头结合在一起， 如此， 不但增加手术时间， 且令新长出的血管与骨痂无法有效的包覆在骨头上， 使断裂的骨头结合 成一体， 在实用性上大打折扣， 增加患者的痛苦， 这种种缺失， 长久以 来， 一直困扰着医疗业者及患者。
为了解决上述的缺点， 遂有一种前端呈开叉状的髓内钉出现， 此种 髓内钉虽可在进入骨髓腔中时， 借由前端的开叉体撑抵在骨髓腔内， 而 令该髓内钉直接固定在骨髓腔中， 但如该髓内钉前端开叉角度太小， 则 无法达到抵撑在骨髓腔内的功效， 而如该髓内钉前端开叉的角度太大， 则在行进时不容易进入另一端骨髓腔， 必须以手术钳夹住， 但因钉体表 面平滑， 极易造成手术钳不易夹持其上， ·在使用上非常不便。
发明内容
本发明所要解决的技术问题是， 提供一种能有效克服上述缺陷， 可 直接穿入断裂骨头中， 而使该骨折处可牢牢结合在一起的前叉自走式髓 内钉。 本发明解决其技术问题所采用的技术方案为， 一种前叉自走式髓 内钉， 主要是由一本体组成， 其特点在于： 该本体一端设有分别向不同 方向延伸并呈张开状的叉杆， 该等叉杆外侧分别设有沿轴向延伸的沟 槽； 一夹环， 其是嵌套在叉杆的沟槽中。 由于釆用上述方案， 不难得出 本发明具有如下有益效果， 本发明结构合理， 构思巧妙， 在使用时， 可 将本体穿入断裂骨髓腔的一端中， 并向另一端的骨髓腔前进， 而在该本 体的叉杆凸露在断裂处时， 即将珠头持骨钳嵌置在沟槽中， 以使叉杆向 前推移时， 珠头持骨钳会沿着沟槽中移动， 而使该叉杆在被推入另一端 的骨髓腔中时， 可借由珠头持骨钳夹持， 不致张开， 而能顺利进入另一 端的骨髓腔中， 且在进入该另一端的骨髓腔中， 才慢慢完全张开， 使该 等叉杆能固定其中， 不致脱离， 进而达到将断裂的骨髓腔连结在一起的 目的， 另， 叉杆的自由端设有嵌套在沟槽中的夹环， 以使该等叉杆在开 始进入断裂骨髓腔一端中时， 可借由夹环的限制， 而并靠在一起， 令该 本体可顺利在该端骨髓腔中前进， 而向另一端骨髓腔移动， 又， 其沟槽 深度为由呈张开状的叉杆一端向另一端逐渐变浅， 以令珠头持骨钳嵌置 在沟槽中时， 可借由沟槽逐渐变浅的深度， 而自然脱离沟槽， 具推广价 值。
附图说明
下面结合附图和实施例对本发明作进一步详细描述。
图 1为习用装置的示意图；
图 2为本发明的立体示意图；
图 3为本发明的髓内钉进入一骨髓腔中的示意图；
图 4为本发明的髓内钉凸露该骨髓腔外的示意图；
图 5为本发明的珠头持骨钳夹持髓内钉时的示意图；
图 6为本发明的珠头持骨钳夹持髓内钉实施时的示意图；
图 7为本发明的髓内钉进入另一骨髓腔中的示意图；
图 8为本发明的髓内钉将断裂骨髓腔结合在一起的示意图。 具体实施方式
请参阅图 2所示， 本发明一种前叉自走式髓内钉， 其是一种可使断 裂的骨髓腔固定结合成一体的装置， 该装置上设有一本体 10， 于本实施 例为一杆体， 该本体 10—端设有分别向不同方向延伸并呈张开状的叉 杆 11， 该等叉杆 11外侧分别设有沿轴向延伸的沟槽 12， 该沟槽 12深 度为由呈张幵状的叉杆 11一端向另一端逐渐变浅， 且该等叉杆 11的自 由端可嵌套有一夹环 20， 于本实施例为一 C型环， 该夹环 20是嵌套在 沟槽 12中， 以使该叉杆 11在夹环 20限制下， 并靠在一起， 以使该等 叉杆 11在开始进入断裂骨髓腔 40其中一端中时， 可借由夹环 20的限 制， 而并靠在一起， 令该本体 20可顺利在该端骨髓腔 40中前进， 而向 另一端骨髓腔 40移动 （如图 3所示)， 直至该本体 10上的叉杆 11凸露 在断裂处时， 将夹环 20取离叉杆 11 (如图 4所示)， 同时， 将珠头持骨 钳 30呈圆珠状的夹头 31嵌置在沟槽 12中 （如图 5所示)， 以使珠头持 骨钳 30的夹头可沿着沟槽 12中移动， 不致脱离叉杆 11， 使该叉杆 11 在被推入另一端的骨髓腔 40中时， 可在夹头 31限制下， 不致张开 （如 图 6所示)， 而在进入另一端的骨髓腔 40中时， 珠头持骨钳 30嵌置在 沟槽 12中时， 可借由逐渐变浅的沟槽 12， 而自然脱离沟槽 12， 且使叉 杆 11在进入后， 可慢慢张开至一定角度， 进而能固定其中， 以使本体 10 在张开的叉杆 11 撑抵下， 不致脱离该端骨髓腔 40， 如此， 即可将断裂 的骨髓腔 40连结在一起 （如图 7、 8所示）。

Claims

权利要求
1、 一种前叉自走式髓内钉， 主要是由一本体组成， 其特征在于- 该本体一端设有分别向不同方向延伸并呈张开状的叉杆， 该等叉杆外侧 分别设有沿轴向延伸的沟槽； 一夹环， 其是嵌套在叉杆的沟槽中。
2、 按权利要求 1 所述的一种前叉自走式髓内钉， 其特征在于： 所 述本体上的叉杆借由一珠头持骨钳的夹持， 而并靠在一起， 该珠头持骨 钳嵌套在沟槽中， 而夹靠在叉杆上。
3、 按权利要求 1或 2所述的一种前叉自走式髓内钉， 其特征在于： 所述沟槽深度为由呈张开状的叉杆一端向另一端逐渐变浅。
PCT/CN2002/000924 2001-12-29 2002-12-30 Clou centromedullaire WO2003055399A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR10-2004-7010354A KR20040071770A (ko) 2001-12-29 2002-12-30 골수내 핀
JP2003555978A JP2006500965A (ja) 2001-12-29 2002-12-30 髄内ピン
AU2002354077A AU2002354077A1 (en) 2001-12-29 2002-12-30 An intramedullary pin
EP02787332A EP1495731A1 (en) 2001-12-29 2002-12-30 An intramedullary pin
US10/499,655 US20050107790A1 (en) 2001-12-29 2002-12-30 Intramedullary pin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN01277174.0 2001-12-29
CN01277174U CN2519659Y (zh) 2001-12-29 2001-12-29 前叉自走式髓内钉

Publications (1)

Publication Number Publication Date
WO2003055399A1 true WO2003055399A1 (fr) 2003-07-10

Family

ID=4736685

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2002/000924 WO2003055399A1 (fr) 2001-12-29 2002-12-30 Clou centromedullaire

Country Status (7)

Country Link
US (1) US20050107790A1 (zh)
EP (1) EP1495731A1 (zh)
JP (1) JP2006500965A (zh)
KR (1) KR20040071770A (zh)
CN (1) CN2519659Y (zh)
AU (1) AU2002354077A1 (zh)
WO (1) WO2003055399A1 (zh)

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US9320551B2 (en) 2007-01-26 2016-04-26 Biomet Manufacturing, Llc Lockable intramedullary fixation device
US9308031B2 (en) 2007-01-26 2016-04-12 Biomet Manufacturing, Llc Lockable intramedullary fixation device
US8303590B2 (en) * 2007-01-26 2012-11-06 Ebi, Llc Lockable intramedullary fixation device
US8157802B2 (en) * 2007-01-26 2012-04-17 Ebi, Llc Intramedullary implant with locking and compression devices
WO2009052294A1 (en) * 2007-10-16 2009-04-23 Ebi, Llc Method and apparatus for orthopedic fixation
EP2468216B1 (de) * 2010-12-23 2014-05-14 Baumgart, Rainer, Dipl.-Ing. Dr. med. Implantierbare Prothese zum Ersatz des menschlichen Hüft- oder Kniegelenks und der angrenzenden Knochenabschnitte
WO2018157161A1 (en) 2017-02-27 2018-08-30 Smith & Nephew, Inc. Surgical navigation system support array

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US5281225A (en) * 1989-06-07 1994-01-25 Guglielmo Vicenzi Intramedullary pin with self-locking end for metadiaphyseal fractures of long bones
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Publication number Priority date Publication date Assignee Title
DE7218224U (de) * 1971-09-28 1972-10-12 Ender H Nagel zur fixierung von oberschenkelbruechen
CN87201185U (zh) * 1987-03-31 1987-12-26 上海市长海医院 记忆合金肱骨髓内钉及其置取器
US5281225A (en) * 1989-06-07 1994-01-25 Guglielmo Vicenzi Intramedullary pin with self-locking end for metadiaphyseal fractures of long bones
EP0564941A1 (en) * 1992-04-06 1993-10-13 Andrea Zoli Intramedullary pin for dynamic osteosynthesis with a self-locking distal end for fractures of the humeral metadiaphyseal region
EP0738502A2 (en) * 1995-04-20 1996-10-23 Halifax Orthopaedic Research Limited Bone support to be inserted in the interior of a bone
CN2411762Y (zh) * 2000-01-11 2000-12-27 曹吉烈 弹性自锁髓内钉
CN2493171Y (zh) * 2001-07-21 2002-05-29 王明才 实心体自动开叉交锁髓内钉

Also Published As

Publication number Publication date
JP2006500965A (ja) 2006-01-12
KR20040071770A (ko) 2004-08-12
CN2519659Y (zh) 2002-11-06
AU2002354077A1 (en) 2003-07-15
US20050107790A1 (en) 2005-05-19
EP1495731A1 (en) 2005-01-12

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