CN109498136A - 刀片钉 - Google Patents

刀片钉 Download PDF

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Publication number
CN109498136A
CN109498136A CN201811569323.7A CN201811569323A CN109498136A CN 109498136 A CN109498136 A CN 109498136A CN 201811569323 A CN201811569323 A CN 201811569323A CN 109498136 A CN109498136 A CN 109498136A
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China
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blade
tail end
blade part
face
main part
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CN201811569323.7A
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English (en)
Inventor
钱建清
徐垒
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JIANGSU SHUANGYANG MEDICAL DEVICES CO Ltd
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JIANGSU SHUANGYANG MEDICAL DEVICES CO Ltd
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Priority to CN201811569323.7A priority Critical patent/CN109498136A/zh
Publication of CN109498136A publication Critical patent/CN109498136A/zh
Pending legal-status Critical Current

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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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72Intramedullary pins, nails or other devices
    • A61B17/7233Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • A61B17/7241Intramedullary pins, nails or other devices with special means of locking the nail to the bone the nail having separate elements through which screws pass
    • 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
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B17/8605Heads, i.e. proximal ends projecting from bone
    • 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
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B17/8625Shanks, i.e. parts contacting bone tissue
    • 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
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B17/864Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
    • 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
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B2017/8655Pins or screws or threaded wires; nuts therefor with special features for locking in the bone

Abstract

本申请公开了一种刀片钉,包括主体部,包括轴心开设有通心孔的主体部,所述主体部包括沿轴向一体成型的尾端部与刀刃部,所述刀刃部开设有多个连通所述通心孔的圆孔,所述刀刃部背离所述尾端部的一端形成有垂直轴心的持平端面,所述持平端面与所述刀刃部连接处形成有多个切面,所述切面与所述主体部轴向夹角为30°,所述尾端部外表面沿轴向对称开设有两条长条槽,所述长条槽宽度自所述尾端部向所述刀刃部逐渐增加,所述长条槽两端分别形成尖部。本发明的优点在于方便了钉子的置入,并且防止退钉等情况。

Description

刀片钉
技术领域
本申请涉及骨科手术,特别涉及一种刀片钉。
背景技术
刀片钉同样是一种金属带锁髓内钉,而刀片钉如何将其固定并固定稳定一直是业内探索的问题。
发明内容
本发明的目的在于提供一种刀片钉,方便了钉子的置入,并且防止退钉等情况。
为实现上述目的,本发明提供如下技术方案。
本申请实施例公开了一种刀片钉,包括轴心开设有通心孔的主体部,所述主体部包括沿轴向一体成型的尾端部与刀刃部,所述刀刃部开设有多个连通所述通心孔的圆孔,所述刀刃部背离所述尾端部的一端形成有垂直轴心的持平端面,所述持平端面与所述刀刃部连接处形成有多个切面,所述切面与所述主体部轴向夹角为30°,所述尾端部外表面沿轴向对称开设有两条长条槽,所述长条槽宽度自所述尾端部向所述刀刃部逐渐增加,所述长条槽两端分别形成尖部。
优选的,在上述的刀片钉中,所述刀刃部形成有4条刃口,所述切面分别自所述刃口端部延伸至所述持平端面。
更优选的,在上述的刀片钉中,所述圆孔开设有4个,分别位于所述刃口侧面。
优选的,在上述的刀片钉中,所述尾端部背离所述刀刃部的一端端面形成有U形槽。
优选的,在上述的刀片钉中,所述通心孔于所述尾端部背离所述刀刃部的一端设置有螺纹。
与现有技术相比,本发明的优点在于尾端部不对称长条槽设计,可顶住防旋螺钉,防止退钉;刀刃部前端形成持平端面,保证最紧实填压骨质并达到最佳骨把持力,骨量丢失达到最小;四个圆孔的设计方便骨水泥的植入,加强固定作用;成30°切面的设计方便钉子的最初置入;尾部U形槽及螺纹设计方便连接操作工具。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请中记载的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1所示为本发明具体实施例中刀片钉的立体示意图;
图2所示为本发明具体实施例中刀片钉的左视图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行详细的描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例,都属于本发明保护的范围。
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”、“第三”仅用于描述目的,而不能理解为指示或暗示相对重要性。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
结合图1-2所示,刀片钉,包括轴心开设有通心孔130的主体部100,主体部100包括沿轴向一体成型的尾端部110与刀刃部120,刀刃部120开设有多个连通通心孔130的圆孔121,刀刃部120背离尾端部110的一端形成有垂直轴心的持平端面122,持平端面122与刀刃部120连接处形成有多个切面123,切面123与主体部100轴向夹角为30°,尾端部110外表面沿轴向对称开设有两条长条槽111,长条槽111宽度自尾端部110向刀刃部120逐渐增加,长条槽111两端分别形成尖部。刀刃部120形成有4条刃口124,切面123分别自刃口124端部延伸至持平端面122。圆孔121开设有4个,分别位于刃口124侧面。尾端部110背离刀刃部120的一端端面形成有U形槽112。通心孔130于尾端部110背离刀刃部120的一端设置有螺纹。
尾端部不对称长条槽设计,可顶住防旋螺钉,防止退钉;刀刃部前端形成持平端面,保证最紧实填压骨质并达到最佳骨把持力,骨量丢失达到最小;四个圆孔的设计方便骨水泥的植入,加强固定作用;成30°切面的设计方便钉子的最初置入;尾部U形槽及螺纹设计方便连接操作工具。
需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上所述仅是本申请的具体实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本申请原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本申请的保护范围。

Claims (5)

1.一种刀片钉,其特征在于,包括轴心开设有通心孔(130)的主体部(100),所述主体部(100)包括沿轴向一体成型的尾端部(110)与刀刃部(120),所述刀刃部(120)开设有多个连通所述通心孔(130)的圆孔(121),所述刀刃部(120)背离所述尾端部(110)的一端形成有垂直轴心的持平端面(122),所述持平端面(122)与所述刀刃部(120)连接处形成有多个切面(123),所述切面(123)与所述主体部(100)轴向夹角为30°,所述尾端部(110)外表面沿轴向对称开设有两条长条槽(111),所述长条槽(111)宽度自所述尾端部(110)向所述刀刃部(120)逐渐增加,所述长条槽(111)两端分别形成尖部。
2.根据权利要求1所述的刀片钉,其特征在于,所述刀刃部(120)形成有4条刃口(124),所述切面(123)分别自所述刃口(124)端部延伸至所述持平端面(122)。
3.根据权利要求2所述的刀片钉,其特征在于,所述圆孔(121)开设有4个,分别位于所述刃口(124)侧面。
4.根据权利要求1所述的刀片钉,其特征在于,所述尾端部(110)背离所述刀刃部(120)的一端端面形成有U形槽(112)。
5.根据权利要求1所述的刀片钉,其特征在于,所述通心孔(130)于所述尾端部(110)背离所述刀刃部(120)的一端设置有螺纹。
CN201811569323.7A 2018-12-21 2018-12-21 刀片钉 Pending CN109498136A (zh)

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CN201701289U (zh) * 2010-04-23 2011-01-12 创生医疗器械(江苏)有限公司 拉力螺钉
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WO2016063193A1 (en) * 2014-10-24 2016-04-28 Madadi Firoozeh Intertrochanteric fixation device
CN107320168A (zh) * 2017-08-03 2017-11-07 大博医疗科技股份有限公司 股骨固定装置
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CN107320168A (zh) * 2017-08-03 2017-11-07 大博医疗科技股份有限公司 股骨固定装置
CN209464074U (zh) * 2018-12-21 2019-10-08 江苏双羊医疗器械有限公司 刀片钉

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