CN105596065A - Protection bone needle - Google Patents

Protection bone needle Download PDF

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Publication number
CN105596065A
CN105596065A CN 201610096324 CN201610096324A CN105596065A CN 105596065 A CN105596065 A CN 105596065A CN 201610096324 CN201610096324 CN 201610096324 CN 201610096324 A CN201610096324 A CN 201610096324A CN 105596065 A CN105596065 A CN 105596065A
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CN
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Prior art keywords
needle
peek
bone
sheath
self
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CN 201610096324
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Chinese (zh)
Inventor
申轩
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运怡(北京)医疗器械有限公司
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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
    • A61B17/60Surgical 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
    • 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
    • A61B17/683Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
    • 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

Abstract

The embodiment of the invention provides a protection bone needle which is used for solving the technical problem that a bone needle in the prior art is likely to cause physical inflammation. According to the technical scheme, the protection bone needle comprises a needle body and a PEEK protecting bush located outside the needle body; the needle body comprises a self-tapping and self-drilling type needle head, a threaded part and a needle tail which are connected in sequence, and the length of the threaded part is larger than that of the PEEK protecting bush; a threaded hole in threaded fit with the threaded part is formed inside the PEEK protecting bush, and the position of the PEEK protecting bush is adjustable at the threaded part.

Description

一种防护骨针 A pellicle spicules

技术领域 FIELD

[0001]本发明实施例涉及医疗器械技术领域,尤其涉及一种防护骨针。 Example relates to the field of medical devices [0001] The present invention particularly relates to a protective spicules.

背景技术 Background technique

[0002]在骨科手术中,会经常用到外固定的方式对骨折处进行固定,固定过程中,会使用骨针置入骨干,起到连接固定的作用。 [0002] In orthopedic surgery, often used in a fixed manner to the external fracture fixation, the fixing process, the bone pins into the backbone will be used, fixed connection functions.

[0003]外固定有着手术创伤小、操作简便、功能多样化等特点,但术后给患者造成的行动不便、针道松动和感染一直是制约着其发展的主要因素。 [0003] External fixation with less trauma, simple, functional diversification and so on, but the action inconvenience to patients after surgery, loose pin tract infection and has been a major factor restricting its development. 引起针道感染的主要原因为:物理性炎症:针皮界面不稳定,针皮之间的摩擦以及金属骨针对针皮界面的刺激引起的针道口红肿热痛及渗出;生物性炎症:术后护理不当,引起的细菌感染。 The main cause of pin tract infection: Physical inflammation: interfacial instability needle sheath, needle crossing friction between the needle and the metallic bone needle for transcutaneous stimulation of the skin interface caused by pain, swelling and bleeding; biological inflammation: surgery after improper care, infections caused by bacteria.

[0004]现有技术的缺陷是,现有骨针容易是皮肤与螺纹相接触,易引起物理性炎症。 Defects [0004] The prior art is that conventional spicules easily threaded into contact with the skin, can lead to physical inflammation.

发明内容 SUMMARY

[0005]本发明实施例提供一种防护骨针,用于解决现有技术中的骨针易引起物理性炎症这一技术问题。 The embodiment provides a needle guard bone [0005] In the present invention, for solving the spicules prior art can lead to the technical problem of physical inflammation.

[0006]本发明实施例一种防护骨针的技术方案为: [0006] Technical Solution Example A pellicle spicules embodiment of the present invention are:

[0007]防护骨针包括针体和位于所述针体外部的PEEK护套;所述针体包括依次连接的自攻自钻式针头、螺纹部和针尾,所述螺纹部的长度大于所述PEEK护套的长度;所述PEEK护套的内部设有与螺纹部螺纹相配合的螺纹孔,所述PEEK护套在所述螺纹部的位置可调。 [0007] The protective bone needle comprising a needle body and located outside of the needle sheath PEEK; the needle comprises a needle with self drilling threaded pintail portion and are sequentially connected, the length of the threaded portion is larger than PEEK length of said sheath; PEEK sheath is provided inside the screw threaded hole cooperating with the threaded portion, the PEEK sheath adjustable position of the threaded portion.

[0008]优选的,在上述防护骨针的技术方案中,所述螺纹部螺纹为U形螺纹。 [0008] Preferably, in the above aspect of the bone needle guard, the threaded portion of the U-shaped thread.

[0009]优选的,在上述防护骨针的技术方案中,所述螺纹部的形状为圆柱体。 [0009] Preferably, in the above aspect of the bone needle guard, the threaded portion of cylindrical shape.

[0010]优选的,在上述防护骨针的技术方案中,所述PEEK护套为圆柱体。 [0010] Preferably, in the above aspect of the bone needle guard, the PEEK sheath is cylindrical.

[0011 ]优选的,在上述防护骨针的技术方案中,所述PEEK护套的外表面为光滑平面。 [0011] Preferably, in the above aspect of the protective bone needle, the outer surface of the PEEK sheath is a smooth plane.

[0012]优选的,在上述防护骨针的技术方案中,所述针体为一体成型。 [0012] Preferably, in the above aspect of the protective bone needle, the needle body is integrally formed.

[0013]优选的,在上述防护骨针的技术方案中,所述自攻自钻式针头包括攻丝刀刃和若干个退削槽。 [0013] Preferably, in the above aspect of the bone needle guard, the self-tapping cutting edge and a plurality of tapping grooves cut-off needle comprises a self-drilling.

[0014]优选的,在上述防护骨针的技术方案中,所述攻丝刀刃位于所述自攻自钻式针头的端部,所述退削槽沿所述自攻自钻式针头的外表面周向设置。 [0014] Preferably, in the above aspect of the bone needle guard, said blade located in said tapping end portion of the self-drilling self-tapping needle, said cut-off groove along the self-drilling self-tapping outer needle circumferentially disposed surface.

[0015]优选的,在上述防护骨针的技术方案中,所述攻丝刀刃为锥体,所述锥体沿着所述针尾至所述自攻自钻式针头的方向面积逐渐缩小。 [0015] Preferably, in the above aspect of the bone needle guard, the blade tapping a cone, said cone to said self drilling needle area gradually decreases in the direction along the pintail.

[0016]优选的,在上述防护骨针的技术方案中,若干个所述退削槽等间隔设置。 [0016] Preferably, in the above aspect of the protective bone pins, a number of said grooves equally spaced cut-off.

[0017]采用上述技术方案的有益效果是: [0017] The beneficial effects of the technical solution is:

[0018]由于本发明实施例中的防护骨针包括针体和位于针体外部的PEEK护套,针体包括依次连接的自攻自钻式针头、螺纹部和针尾,螺纹部的长度大于PEEK护套的长度;PEEK护套的内部设有与螺纹部螺纹相配合的螺纹孔,当针体打入骨内时,将PEEK护套往下旋,PEEK护套在所述螺纹部的位置可调,直到与骨面接触,PEEK护套置于针体外部,能够保护皮肤避免来自螺纹的伤害而引起的炎症。 [0018] Since the protective bone pins in the embodiment of the present invention comprising a needle body the needle body and located outside the PEEK sheath, the needle body comprising a self drilling length of needles are connected in sequence, and the threaded pin tail portion, the threaded portion is larger than PEEK sheath length; PEEK sheath is provided with an internal screw threaded hole cooperating with the threaded portion, when the needle into the bone, the sheath spin down PEEK, PEEK sheath may be at a position of the threaded portion tone, until the contact with the bone surface, PEEK sheath disposed outside the needle, can protect skin from damage from the inflammation caused by the thread.

附图说明 BRIEF DESCRIPTION

[0019]为了更清楚地说明本发明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发明的一些实施例,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。 [0019] In order to more clearly illustrate the technical solutions in the embodiments or the prior art embodiment of the present invention, briefly introduced hereinafter, embodiments are described below in the accompanying drawings or described in the prior art needed to be used in describing the embodiments the drawings are only some embodiments of the present invention, those of ordinary skill in the art is concerned, without creative efforts, can derive from these drawings other drawings.

[0020]图1是本发明实施例一种防护骨针的正视图[0021 ]图2是图1一种防护骨针的针体的示意图; [0020] FIG. 1 is a front view of the embodiment of a needle guard bone embodiment of the present invention, FIG. [0021] FIG. 2 is a schematic view of the needle body 1. A bone needle guard of Figure 1;

[0022]图3是图2的一种防护骨针的针体的正视图; [0022] FIG. 3 is a front view of a needle guard body spicules 2;

[0023]图4是图1一种防护骨针的PEEK护套的正视图; [0023] FIG. 4 is a PEEK sheath of FIG. 1 A pellicle spicules elevational view;

[0024]图5是图4一种防护骨针的PEEK护套的俯视图; [0024] FIG. 5 is a plan view of FIG PEEK sheath 4 A pellicle spicules;

[0025]图6是图5—种防护骨针的PEEK护套的AA剖视图。 [0025] FIG. 6 is a sectional view AA of FIG species protection spicules 5- PEEK sheath.

具体实施方式 detailed description

[0026]本发明实施例提供一种防护骨针,用于解决现有技术中的骨针易引起物理性炎症这一技术问题。 The embodiment provides a bone needle protection [0026] of the present invention, for solving the spicules prior art can lead to the technical problem of physical inflammation.

[0027]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清楚、完整地描述,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。 [0027] below in conjunction with the present invention in the accompanying drawings, technical solutions of embodiments of the present invention are clearly and completely described, obviously, the described embodiments are merely part of embodiments of the present invention, but not all embodiments example. 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。 Based on the embodiments of the present invention, all other embodiments of ordinary skill in the art without any creative effort shall fall within the scope of the present invention.

[0028]请参阅图1至图6,本发明实施例一种防护骨针的技术方案包括: Technical Solution [0028] Please refer to FIG. 1 to FIG. 6, the embodiment of a bone needle guard of the embodiment of the present invention comprises:

[0029 ] 针体I和位于针体I外部的PEEK护套2 ; [0029] I and the needle is located outside of the needle body I PEEK sheath 2;

[0030]针体I包括依次连接的自攻自钻式针头3、螺纹部4和针尾5,螺纹部4的长度大于PEEK护套2的长度;PEEK护套2的内部设有与螺纹部螺纹相配合的螺纹孔,PEEK护套2在螺纹部4的位置可调。 [0030] I include needle self drilling needle 3 connected in turn, the threaded portion 4 and the end of the needle 5, is greater than the length of the threaded portion 4 of the length of the sheath 2 is PEEK; PEEK sheath 2 is provided with an internal threaded portion cooperating threaded screw hole, PEEK sheath 2 at the position of the adjustable screw portion 4 of the.

[0031 ]采用上述技术方案的有益效果是: [0031] The beneficial effects of the technical solution is:

[0032 ]由于本发明实施例中的防护骨针包括针体I和位于针体I外部的PEEK护套2,针体I包括依次连接的自攻自钻式针头3、螺纹部4和针尾5,螺纹部4的长度大于PEEK护套2的长度;PEEK护套2的内部设有与螺纹部螺纹相配合的螺纹孔,当针体I打入骨内时,将PEEK护套2沿着螺纹部4往下旋,PEEK护套2在螺纹部4的位置可调,直到与骨面接触,PEEK护套2置于针体I外部,能够保护皮肤避免来自螺纹的伤害而引起的炎症。 [0032] Since the protective bone pins in the embodiment of the present invention comprises a needle body and PEEK I I located outside the sheath 2 of the needle, the needle I comprises a self drilling needle 3 connected in turn, the threaded portion 4 and the needle tail 5, is greater than the length of the threaded portion 4 of the length of the sheath 2 is PEEK; PEEK sheath 2 is provided with an internal screw threaded portion cooperating with the threaded hole when the needle into the bone I, the sheath 2 along the thread PEEK spin down portion 4, PEEK sheath 2 at the position of the adjustable screw portion 4 until the contact with the bone surface, PEEK sheath 2 is placed outside the needle I, can be protected to avoid damage from the inflammation of the skin caused by the thread.

[0033]下面分别对自攻自钻式针头3、螺纹部4和PEEK护套进行详细说明。 [0033] The following are a self-drilling self-tapping of the needle 3, the threaded portion 4 and PEEK sheath described in detail.

[0034] (I)自攻自钻式针头3 [0034] (I) self drilling needle 3

[0035]自攻自钻式针头3可以具体包括攻丝刀刃和若干个退削槽,攻丝刀刃位于自攻自钻式针头的端部,退削槽沿自攻自钻式针头的外表面周向设置,。 [0035] Self drilling needle 3 may specifically comprise a plurality of tapped-off blade and a cut groove, the blade is located from the end portion of tapping drilling tapping needle, the cut-off groove along the outer surface of the self drilling needles of circumferentially disposed.

[0036]进一步的,攻丝刀刃为锥体,该锥体沿着针尾5至自攻自钻式针头3的方向面积逐渐缩小。 [0036] Further, a cone tapping cutting edge, the cone to self drilling direction of the needle 3 in the area is gradually reduced along the end of the needle 5.

[0037]进一步的,针体为一体成型。 [0037] Further, the needle body is integrally formed.

[0038]进一步的,若干个退削槽等间隔设置。 [0038] Further, a plurality of equally spaced grooves cut back.

[0039]防护骨针的自攻自钻设计以及U型螺纹,能够时手术时无需预钻针道,直接在骨头上钻孔,并排出钻碎的骨肩,降低手术时间和骨针插入温度,避免骨针松动。 [0039] Protection spicules self drilling threaded U-shaped design and, without pre-drilling needle track when surgery is possible, directly on the bone drill, a bone shoulder drilled out and discharged, the operation time and reduce bone penetration temperature avoid loose spicules.

[0040] (2)螺纹部4 [0040] (2) a threaded portion 4

[0041] 螺纹部螺纹为U形螺纹,螺纹部的形状可以为圆柱体,U形螺纹能够增加30%骨接触面积,减少径向皮质张力,使应力在骨内分布最佳。 [0041] The threaded portion of the optimum stress distribution in the bone screw is U-shaped, the shape of the threaded portion may be a cylinder, a U-shaped bone thread can be increased by 30% contact area, reducing the radial cortical tension so.

[0042] (3)PEEK 护套2 [0042] (3) PEEK sheath 2

[0043 ] PEEK护套2为圆柱体,PEEK护套2的外表面为光滑平面。 [0043] PEEK sheath 2 as a cylinder, the outer surface of the PEEK sheath 2 is a smooth plane.

[0044]在上述防护骨针的技术方案中,针体I为一体成型结构,PEEK护套2置于针体I和皮肤之间,利用PEEK(聚醚醚酮,英文名称polyetheretherketone)优秀的生物相容性可长期与人体接触,不会与人体发生应激反应,保护针道口不受金属异物的刺激。 [0044] In the above aspect of the protective bone needle, the needle body is integrally molded structure I, between the skin and the needle I PEEK sheath 2 is placed, using PEEK (polyether ether ketone, polyetheretherketone English name) excellent biological compatibility of the prolonged contact with the human body, the human body does not react with stress, protect the needle from crossing metallic foreign stimulation. 同时又因为防护骨针的针体I的螺纹不可避免的会有一部分露出骨外与皮肤接触,锋刃的螺纹会切割皮肤,PEEK护套2能够保护皮肤来自螺纹的伤害引起的炎症。 While there will be unavoidable because the needle guard spicules I expose a portion of the threaded outer bone contact with the skin, skin cutting blade of the screw will, PEEK sheath 2 can be protected from inflammation of skin damage caused by thread.

[0045]上述防护骨针的具体工作原理为: [0045] DETAILED protection spicules above works as follows:

[0046]首先将PEEK护套2拧到针体I的螺纹部4的最上端,然后将防护骨针套入骨针套筒内,使用电钻或者手动摇钻将防护骨针打入骨内,退出骨针套筒后,将PEEK护套2沿螺纹部4往下旋,直到PEEK护套2与骨面接触,最后使用医用胶布,在PEEK护套2的上端开始将螺纹部4未与PEEK护套2接触的部分缠绕起来,一方面防止PEEK护套2松退,另一方面防止螺纹部4置于外界的螺纹划伤医生或患者。 [0046] First, the PEEK sheath 2 is screwed to the top of the threaded portion of the needle body I 4, and then the protective sheath bone spicules needle hub, a power drill or a hand shake inner protective bone drill stylus bone, to exit the bone after the trocar sleeve, the PEEK sheath 2 along the threaded portion 4 screwed down until the sheath 2 PEEK surface in contact with the bone, and finally the use of medical tape, PEEK sheath at the upper end of the threaded portion 2 starts with the sheath 4 is not PEEK the contact part 2 is wound up, on the one hand to prevent sucking back PEEK sheath 2, on the other hand to prevent the screw threaded portion 4 disposed outside scratch physician or patient.

[0047]本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。 [0047] In the present specification, the various embodiments described in a progressive manner, differences from the embodiment and the other embodiments each of which emphasizes embodiment, the same or similar portions between the various embodiments refer to each other.

[0048]对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本发明。 [0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. 对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在其它实施例中实现。 Various modifications to these professionals skilled in the art of the present embodiments will be apparent, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. 因此,本发明将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。 Accordingly, the present invention will not be limited to the embodiments shown herein but is to be accorded herein consistent with the principles and novel features disclosed widest scope.

Claims (10)

  1. 1.一种防护骨针,其特征在于,包括:针体和位于所述针体外部的PEEK护套;所述针体包括依次连接的自攻自钻式针头、螺纹部和针尾,所述螺纹部的长度大于所述PEEK护套的长度;所述PEEK护套的内部设有与螺纹部螺纹相配合的螺纹孔,所述PEEK护套在所述螺纹部的位置可调。 A protective bone pins, characterized by comprising: a needle body and PEEK sheath located outside of the needle body; the needle comprises a needle with self drilling threaded pintail portion and sequentially connected, the the length of said threaded portion is greater than the length of the sheath of the PEEK; PEEK interior of the sheath is provided with a threaded screw hole cooperating with the threaded portion, the PEEK sheath adjustable position of the threaded portion.
  2. 2.根据权利要求1所述的防护骨针,其特征在于,所述螺纹部螺纹为U形螺纹。 Protection according to claim 1 of the spicules, wherein said threaded portion is U-shaped threads.
  3. 3.根据权利要求1或2所述的防护骨针,其特征在于,所述螺纹部的形状为圆柱体。 The protective bone pin of claim 1 or claim 2, wherein the shape of the threaded portion of a cylinder.
  4. 4.根据权利要求3所述的防护骨针,其特征在于,所述PEEK护套为圆柱体。 According to claim 3, the protective bone pins, wherein said jacket is cylindrical PEEK.
  5. 5.根据权利要求4所述的防护骨针,其特征在于,所述PEEK护套的外表面为光滑平面。 The bone needle guard according to claim 4, characterized in that the outer surface of the PEEK sheath is a smooth plane.
  6. 6.根据权利要求1所述的防护骨针,其特征在于,所述针体为一体成型。 According to claim 1 of the protective bone needle, wherein the needle is integrally formed.
  7. 7.根据权利要求1或6所述的防护骨针,其特征在于,所述自攻自钻式针头包括攻丝刀刃和若干个退削槽。 The protective bone pins or the claims 1 to 6, characterized in that said self drilling tapping blades and needles comprises a plurality of cut-off grooves.
  8. 8.根据权利要求7所述的防护骨针,其特征在于,所述攻丝刀刃位于所述自攻自钻式针头的端部,所述退削槽沿所述自攻自钻式针头的外表面周向设置。 According to claim 7 of the protective bone pins, wherein said end portion of the tapping blade positioned self drilling needle, said cut-off groove along the self-drilling self-tapping needle an outer circumferential surface is provided.
  9. 9.根据权利要求8所述的防护骨针,其特征在于,所述攻丝刀刃为锥体,所述锥体沿着所述针尾至所述自攻自钻式针头的方向面积逐渐缩小。 9. The protective bone needle according to claim 8, wherein said blade tapping a cone, the cone area to the direction of self drilling needle along the tapered end of the needle .
  10. 10.根据权利要求9所述的防护骨针,其特征在于,若干个所述退削槽等间隔设置。 10. The bone needle guard according to claim 9, wherein said plurality of cut-off grooves is provided at equal intervals.
CN 201610096324 2016-02-22 2016-02-22 Protection bone needle CN105596065A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080161864A1 (en) * 2006-09-29 2008-07-03 Depuy Mitek, Inc. Femoral fixation
CN101352368A (en) * 2008-07-17 2009-01-28 武汉康斯泰德科技有限公司 Medical self-drilling self-tapping fixed bone spicule
CN203029363U (en) * 2012-12-20 2013-07-03 李书凡 Threaded spicule
CN203619663U (en) * 2013-10-22 2014-06-04 左建宏 Split type percutaneous vertebral pedicle screw of minimally invasive spine prying reconstructive external fixator
US20140277183A1 (en) * 2013-03-15 2014-09-18 Smed-Ta/Td, Llc Fixation of orthopaedic devices
CN205411277U (en) * 2016-02-22 2016-08-03 运怡(北京)医疗器械有限公司 Protection spicule

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080161864A1 (en) * 2006-09-29 2008-07-03 Depuy Mitek, Inc. Femoral fixation
CN101352368A (en) * 2008-07-17 2009-01-28 武汉康斯泰德科技有限公司 Medical self-drilling self-tapping fixed bone spicule
CN203029363U (en) * 2012-12-20 2013-07-03 李书凡 Threaded spicule
US20140277183A1 (en) * 2013-03-15 2014-09-18 Smed-Ta/Td, Llc Fixation of orthopaedic devices
CN203619663U (en) * 2013-10-22 2014-06-04 左建宏 Split type percutaneous vertebral pedicle screw of minimally invasive spine prying reconstructive external fixator
CN205411277U (en) * 2016-02-22 2016-08-03 运怡(北京)医疗器械有限公司 Protection spicule

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