CN105326544A - Breakable pedicle screw - Google Patents

Breakable pedicle screw Download PDF

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Publication number
CN105326544A
CN105326544A CN201410390413.5A CN201410390413A CN105326544A CN 105326544 A CN105326544 A CN 105326544A CN 201410390413 A CN201410390413 A CN 201410390413A CN 105326544 A CN105326544 A CN 105326544A
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CN
China
Prior art keywords
breakable
portion
pedicle screw
wall
thread
Prior art date
Application number
CN201410390413.5A
Other languages
Chinese (zh)
Inventor
安宗源
甘澎
兰成营
Original Assignee
天津康立尔生物科技有限公司
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.)
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Application filed by 天津康立尔生物科技有限公司 filed Critical 天津康立尔生物科技有限公司
Priority to CN201410390413.5A priority Critical patent/CN105326544A/en
Publication of CN105326544A publication Critical patent/CN105326544A/en

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Abstract

The invention belongs to the technical field of medical equipment and particularly relates to a breakable pedicle screw. The breakable pedicle screw comprises a thread portion with an external thread and a self-tapping tip, and the other end of the thread portion is connected with a U-shaped portion formed by two opposite wall plates. The outer side surfaces of the two wall plates are inwardly, transversely and oppositely provided with two grooves with trapezoidal sections respectively, and each groove enables the corresponding portion of the corresponding wall plate to be thinner than other portions, so that a breakable portion is formed on each wall plate. The inner wall of each of the U-shaped portion and the breakable portions is provided with an internal thread. The breakable pedicle screw has the advantages that the breakable portions of the pedicle screw can be conveniently broken through the grooves after the pedicle screw is implanted, and more humanized selections are provided for operations.

Description

—种可断椎弓根钉 - species can be broken pedicle screw

技术领域 FIELD

[0001] 本发明属于医疗器械技术领域,具体涉及一种可断椎弓根钉。 [0001] The present invention belongs to the technical field of medical devices, particularly to a pedicle screw may be broken.

背景技术 Background technique

[0002] 椎弓根螺钉作为一种成熟的脊柱外科用装置,已被广泛应用。 [0002] pedicle screw as a mature spinal surgical apparatus has been widely used. 目前椎弓根钉主要是国外公司研制并在市场推出,其均采用空心椎弓根钉,预设棒的长度和弧度,国内采用的椎弓根钉棒固定系统,大体分两大类,一类与国外椎弓根螺钉相似,采用空心椎弓根钉设计,预设棒长度和弧度,另一类应用非空心椎弓根螺钉,但上述的椎弓根螺钉一般采用固定结构,不能根据需要折断,不方便操作使用。 Currently pedicle screw mainly foreign companies to develop and market launch, which are made of hollow pedicle screws, rods preset length and curvature, pedicle screw-rod fixation system domestic use, generally classified into two categories, and similar foreign class pedicle screws, pedicle screw use of hollow design, and a predetermined arc length of the rod, another application of non-hollow pedicle screws, pedicle screws above but generally a fixed structure, not necessary broken, the operation is not convenient to use.

发明内容 SUMMARY

[0003] 本发明的目的在于解决上述的技术问题而提供一种可断椎弓根钉。 [0003] The object of the present invention is to solve the aforementioned technical problem to provide a pedicle screw may be broken.

[0004] 为实现上述目的,本发明采用如下技术方案: [0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] 一种可断椎弓根钉,包括具有外螺纹的螺纹部,所述螺纹部具有自攻型端头,所述螺纹部的另一端连接一由两个相对的壁板相对设置而形成的U形部,所述两个壁板的外侧表面上向内位置相对分别横向制设有一截面为梯形状的凹槽,该凹槽使所述壁板的对应处的小于其它部分的厚度,从而在所述壁板上形成有一可折断部,所述U形部以及所述可折断部的内壁具有内螺纹。 [0005] A broken pedicle screw, comprising a threaded portion with an external thread, said threaded portion having a self-tapping tip, and the other end is connected to a threaded portion of the two opposing wall panels and disposed opposite U-shaped portion formed on the outer surface of the relative position of the two panels are inwardly provided with a transverse cross-section made trapezoidal groove, the recess of the corresponding thickness of said wall is less than other portions thereby forming on said wall has a breakable portion and an inner wall of the U-shaped portion of the breakable portion having an internal thread.

[0006] 作为一种改进,所述壁板为弧形板。 [0006] As an improvement, said arcuate wall plate.

[0007] 本发明可断椎弓根钉,由于具有外螺纹的螺纹部,所述螺纹部具有自攻型端头,所述螺纹部的另一端连接一由两个相对的壁板相对设置而形成的U形部,所述两个壁板的外侧表面上向内位置相对分别横向制设有一截面为梯形状的凹槽,该凹槽使所述壁板的对应处的小于其它部分的厚度,从而在所述壁板上形成有一可折断部,所述U形部以及所述可折断部的内壁具有内螺纹,可以方便在植入固定后通过所述凹槽将可折断部折断,给予手术操作更多的人性化选择。 [0007] The present invention can be broken pedicle screw, since the external thread has a threaded portion, said threaded portion having a self-tapping tip, and the other end is connected to a threaded portion of the two opposing wall panels and disposed opposite U-shaped portion formed on the outer surface of the relative position of the two panels are inwardly provided with a transverse cross-section made trapezoidal groove, the recess of the corresponding thickness of said wall is less than other portions so as to form a breakable portion, and an inner wall of the U-shaped portion of the breakable portion having an internal thread can be easily breakable portions break through the groove after implantation, fixed to the wall, to give surgical procedures more user-friendly choice.

附图说明 BRIEF DESCRIPTION

[0008] 图1所示为本发明实施例提供的一种可断椎弓根钉的结构示意图; As shown in the present [0008] embodiment of the invention Figure 1 provides a schematic diagram of a configuration of the pedicle screw can be broken;

[0009] 图2所示为图1的另一视角下的侧视图。 [0009] Figure 2 is another perspective side view of the FIG.

具体实施方式 Detailed ways

[0010] 下面,结合实例对本发明的实质性特点和优势作进一步的说明,但本发明并不局限于所列的实施例。 [0010] Next, with examples of substantive features and advantages of the invention will be further described, but the present invention is not limited to the embodiments set forth.

[0011] 参见图1、2所示,该图示出了本发明实施例提供的一种可断椎弓根钉的结构。 [0011] Referring to Figure 2, which shows the structure of the present invention provides an embodiment of the pedicle screw may be broken. 为了便于说明,仅示出了与本发明实施例有关的部分。 For ease of description, only a part related to the embodiment of the present invention.

[0012] 请参阅图1,一种可断椎弓根钉,包括具有外螺纹的螺纹部1,所述螺纹部具有自攻型端头,所述螺纹部的另一端连接一由两个相对的壁板6相对设置并于底部呈弧状结构相连接而形成的U形部2,所述两个壁板的外侧表面上向内位置相对分别横向制设有一截面为梯形状的凹槽4,该凹槽4使所述壁板的对应处的小于其它部分的厚度,从而在所述壁板上形成有一可折断部4,所述U形部2的内壁以及所述可折断部4的内壁5分别具有内螺纹7、8。 [0012] Referring to FIG 1, an off pedicle screw, comprising 1, the threaded portion having a self-tapping tip, the other end of the threaded portion screwed with an external thread portion of a two opposing 6 and wall panel disposed opposite to the U-shaped bottom portion connected to the arcuate configuration formed by 2, the two upper outer surface of the panel inwardly relative position of each system is provided with a transverse groove cross-section trapezoidal 4, the recess is smaller than the thickness of the other portion corresponding to the wall at 4, so as to form a breakable inner wall portion 4, the U-shaped portion of the inner wall 2 and 4 of the breakable portion in the wall 5 each having an internal thread 7,8.

[0013] 作为一种改进,所述壁板6为弧形板。 [0013] As an improvement, the wall plate 6 is curved.

[0014] 作为一改进,所述自攻型端头具有一凹槽。 [0014] As an improvement, the self-tapping tip having a recess.

[0015] 作为一种改进,所述壁板上开设有孔9,该孔为9两个,分别开设在所述的凹槽的上、下两侧,且以所述凹槽的中心线对称设置。 [0015] As an improvement, the wall hole 9 defines the two holes 9, respectively, defines a groove on the lower sides of, and symmetrically to the center line of the groove settings.

[0016] 本发明可断椎弓根钉,由于具有外螺纹的螺纹部,所述螺纹部具有自攻型端头,所述螺纹部的另一端连接一由两个相对的壁板相对设置而形成的U形部,所述两个壁板的外侧表面上向内位置相对分别横向制设有一截面为梯形状的凹槽,该凹槽使所述壁板的对应处的小于其它部分的厚度,从而在所述壁板上形成有一可折断部,所述U形部以及所述可折断部的内壁具有内螺纹,可以方便在植入固定后通过所述凹槽将可折断部折断,给予手术操作更多的人性化选择。 [0016] The present invention can be broken pedicle screw, since the external thread has a threaded portion, said threaded portion having a self-tapping tip, and the other end is connected to a threaded portion of the two opposing wall panels and disposed opposite U-shaped portion formed on the outer surface of the relative position of the two panels are inwardly provided with a transverse cross-section made trapezoidal groove, the recess of the corresponding thickness of said wall is less than other portions so as to form a breakable portion, and an inner wall of the U-shaped portion of the breakable portion having an internal thread can be easily breakable portions break through the groove after implantation, fixed to the wall, to give surgical procedures more user-friendly choice.

[0017] 以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。 [0017] The above are only preferred embodiments of the present invention, it should be noted that those of ordinary skill in the art, in the present invention without departing from the principles of the premise, can make various improvements and modifications, such modifications and modifications should also be regarded as the protection scope of the present invention.

Claims (2)

1.一种可断椎弓根钉,其特征在于,包括具有外螺纹的螺纹部,所述螺纹部具有自攻型端头,所述螺纹部的另一端连接一由两个相对的壁板相对设置而形成的U形部,所述两个壁板的外侧表面上向内位置相对分别横向制设有一截面为梯形状的凹槽,该凹槽使所述壁板的对应处的小于其它部分的厚度,从而在所述壁板上形成有一可折断部,所述U形部以及所述可折断部的内壁具有内螺纹。 A pedicle screw may be broken, characterized by comprising a threaded portion with an external thread, said threaded portion having a self-tapping tip, and the other end is connected to a threaded portion of the two opposing wall panels U-shaped portion formed by oppositely disposed on the outer surface of the relative position of the two panels are inwardly provided with a transverse cross-section made trapezoidal groove, the recess of the corresponding wall panel is less than at the other thickness of a portion, so as to form a breakable portion on the wall, the inner wall of the U-shaped portion and the breakable portion having an internal thread.
2.根据权利要求1所述可断椎弓根钉,其特征在于,所述壁板为弧形板。 2. The method of claim 1 breakable pedicle screw, characterized in that said arcuate wall plate.
CN201410390413.5A 2014-08-11 2014-08-11 Breakable pedicle screw CN105326544A (en)

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CN201410390413.5A CN105326544A (en) 2014-08-11 2014-08-11 Breakable pedicle screw

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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050273101A1 (en) * 2004-05-28 2005-12-08 Aesculap Ag & Co. Kg Bone screw and osteosynthesis device
CN201290757Y (en) * 2008-11-18 2009-08-19 浙江科惠医疗器械有限公司 Injectable pediculus arcus vertebrae screw
CN101803944A (en) * 2010-03-26 2010-08-18 王春 pedicle screw
CN201631368U (en) * 2009-12-31 2010-11-17 上海微创骨科医疗科技有限公司 Hidden reset pedicle screw with fractured surface
CN202859279U (en) * 2012-10-12 2013-04-10 赵红卫 Novel minimally invasive hollow breakable long-tail screw
CN103919603A (en) * 2014-04-18 2014-07-16 北京市奥斯比利克新技术开发有限公司 Long-tail U-type vertebral pedicle locking device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050273101A1 (en) * 2004-05-28 2005-12-08 Aesculap Ag & Co. Kg Bone screw and osteosynthesis device
CN201290757Y (en) * 2008-11-18 2009-08-19 浙江科惠医疗器械有限公司 Injectable pediculus arcus vertebrae screw
CN201631368U (en) * 2009-12-31 2010-11-17 上海微创骨科医疗科技有限公司 Hidden reset pedicle screw with fractured surface
CN101803944A (en) * 2010-03-26 2010-08-18 王春 pedicle screw
CN202859279U (en) * 2012-10-12 2013-04-10 赵红卫 Novel minimally invasive hollow breakable long-tail screw
CN103919603A (en) * 2014-04-18 2014-07-16 北京市奥斯比利克新技术开发有限公司 Long-tail U-type vertebral pedicle locking device

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