CN104688326A - Pedicle screw nailing device - Google Patents

Pedicle screw nailing device Download PDF

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Publication number
CN104688326A
CN104688326A CN201310659877.7A CN201310659877A CN104688326A CN 104688326 A CN104688326 A CN 104688326A CN 201310659877 A CN201310659877 A CN 201310659877A CN 104688326 A CN104688326 A CN 104688326A
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CN
China
Prior art keywords
pedicle screw
pedicle
nail
knob
anti
Prior art date
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CN201310659877.7A
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Chinese (zh)
Inventor
刘益强
孙艳
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天津市威曼生物材料有限公司
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Priority to CN201310659877.7A priority Critical patent/CN104688326A/en
Publication of CN104688326A publication Critical patent/CN104688326A/en

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Classifications

    • 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
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/92Impactors or extractors, e.g. for removing intramedullary devices
    • 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
    • A61B2017/564Methods for bone or joint treatment
    • 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
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/92Impactors or extractors, e.g. for removing intramedullary devices
    • A61B2017/922Devices for impaction, impact element

Abstract

The invention provides a pedicle screw nailing device with which physicians can implant pedicle screws conveniently. The pedicle screw nailing device is convenient to operate and safe and reliable in use and characterized in that during use, a connecting head at the head part of a nailing rod is inserted into a pedicle screw, then the head part of a nailing sleeve pipe is screwed into the tail cap of the pedicle screw in a threaded manner to be fully locked through a screwing nut, and finally an anti-quit knob is pushed forwards until a lock button is bounced. The screwing nut is provided with a latch and matched with a neck in the anti-quit knob during work, and meanwhile the lock button is buckled into an octagon on the nailing rod, so that the nailing device and the pedicle screw are effectively connected into a whole and have firmness and no looseness under the action that locking force is not removed. Repeated experiments show that when the neck of the anti-quit knob is divided into 16 equal parts and the nailing rod is designed into the octagon at 30 degrees, the pedicle screw can be most effectively locked.

Description

椎弓根螺钉上钉器 Pedicle screw nail

技术领域 FIELD

[0001] 本发明涉及一种医疗器械技术领域,具体涉及一种用于治疗脊柱病变做内固定手术时植入椎弓根螺钉的椎弓根螺钉上钉器。 [0001] The present invention relates to a medical device technical field, particularly relates to a pedicle screw implant for treating spinal lesions when doing the pedicle screw fixation nails.

背景技术 Background technique

[0002] 脊柱内固定技术的应用已经有几十年的历史。 [0002] Application spinal fixation techniques have decades of history. 目前,对于脊柱创伤、滑脱、退行性疾病和其他单段或多段骨折后椎体不稳,多采用脊柱内固定器固定。 Currently, spinal trauma, spondylolisthesis, and other degenerative diseases after a single segment or vertebral fracture instability, the use of spinal fixator. 现在市面上的固定器种类较多,但大部分都通过单向椎弓根螺钉、万向椎弓根螺钉、连接棒等其他相应部件组成。 Now the market a large fixture, but the majority of the composition through the other respective way member pedicle screws, pedicle screw joint, connecting rods.

[0003] 在脊柱内固定手术中最关键的步骤即椎弓根螺钉的植入,通过多年来的临床经验发现一把合适的椎弓根螺钉上钉器对手术能起到至关重要的作用。 [0003] In the spinal fixation most critical step i.e. the pedicle screw implanted through years of clinical experience found a suitable surgical staple pedicle screw can play a crucial role in . 医师在进行椎弓根螺钉植入时通常先用上钉器与椎弓根螺钉连接,用一只手确定好椎弓根螺钉的方向、然后另一只手通过上钉工具的手柄将椎弓根螺钉拧入。 Physician during pedicle screw placement typically first used when the staple is connected to the pedicle screws, pedicle screws better determine the direction with one hand, and on the other hand by the arch nail tool handle of screws screwed. 所以一把好的椎弓根螺钉上钉器必须与椎弓根螺钉的连接便捷有效,为了椎弓根螺钉植入后能把持牢固、椎弓根螺钉与上钉器之间整体性强、无松动现象,尤其是万向型的椎弓根螺钉。 Therefore, a good staple pedicle screw must be convenient and effective connection with the pedicle screws, the pedicle screw to firmly grip the implant energy, strong integrity between the pedicle screws and the nail, no loosening, especially the universal type of pedicle screws.

[0004] 为了能让脊柱内固定手术安全顺利的进行、很多的医疗器械生产商及研究机构为研制出一把好的椎弓根螺钉上钉器都在不断地努力。 [0004] In order to allow spinal fixation safe and smooth conduct of many medical device manufacturers and research institutions developed on a good pedicle screw nails are constantly trying. 实用新型专利《椎体钉上钉器》(授权公告号为:CN201324288Y)公布了一种可适用于椎弓根螺钉植入时使用的上钉器,但该种上钉器在临床使用上椎弓根螺钉与上钉器的连接容易产生松动,同时椎弓根螺钉植入时方向容易产生变化、增大了手术的风险。 Utility model patents "vertebral nailed nails" (notice of authorization number: CN201324288Y) announced an applicable when using pedicle screws implanted in the nail, but it planted the nail on the clinical use of vertebral pedicle screw is connected with the staple prone to become loose when the pedicle screw implanted in a direction likely to change, increasing the risk of surgery. 发明专利《脊柱螺钉上钉器》(申请公布号为:CN102379738A)公开了一种脊柱螺钉上钉器,该种上钉器由于滑块在连杆本体上不能径向转动,所以滑块与旋帽上卡齿在啮合时受到角度的限制上钉器头部螺纹与椎弓根螺钉的连接不能完全锁紧、使二者之间存在松动,同时手柄与旋帽以及旋帽和滑块之间的卡齿都存在术中刮破医师手套的风险,并且该发明并未提供万向椎弓根螺钉植入的解决方案,尤其是万向椎弓根螺钉螺钉与尾帽之间的晃动。 Patent invention "spine screw nail" (Application Publication No.: CN102379738A) discloses a screw on A spinal staple, the staple is planted since the slider can not be rotated radially to the link body, the slider and the rotation the cap latch being staple head pedicle screw threaded connection is not fully locking limit angle when engaged, such that there is looseness between the two, while rotation between the handle and the cap and screw the cap and the slider the latches are at risk surgery glove scratch physician, and the invention does not provide a universal solution to the pedicle screw implant, in particular a universal pedicle screw backlash between the screw and end cap.

发明内容 SUMMARY

[0005] 本发明的目的是提供一种方便医师植入椎弓根螺钉使用的椎弓根螺钉上钉器。 [0005] The object of the present invention is to provide a convenience to the physician using the pedicle screw pedicle screw staple. 上述上钉器与椎弓根螺钉连接方便、能牢固有效的锁紧椎弓根螺钉,结构上符合人体工程学、经临床试用得到了临床医师的广泛认可。 Convenience above the nail pedicle screw connection, can effectively secure locking pedicle screws, structural ergonomic, the clinical trial has been widely recognized by clinicians.

[0006] 上述椎弓根螺钉上钉器主要由上钉杆、上钉套管、方向护套、旋紧螺母、防退旋钮、锁紧摁钮组成。 [0006] said pedicle screw pilot hole is mainly made on the shank, the nail the sleeve, the direction of the sheath, tighten the nut, the anti-back knobs, push buttons locking composition. 上述上钉杆头部可设计成T型或直型分别适用于单向椎弓根螺钉和万向椎弓根螺钉,尾部设有与快换手柄连接的快换接头、术中根据医师习惯可选取T型手柄或直型手柄上钉。 The upper shank head may be designed to T or straight way were applied to a pedicle screw and a universal screw, provided with a tail connected to the quick connectors of the quick-change lever, the physician according to customary surgery select T-handle or the handle on the straight nail. 上述上钉套管头部设有与椎弓根螺钉尾帽螺纹相配合的螺纹与椎弓根螺钉连接时先将上钉杆头部连接头插入椎弓根螺钉然后将上钉套管头部螺纹旋入椎弓根螺钉尾帽后将防退旋钮前推至锁紧摁钮弹起即可。 Nail head is provided with the upper sleeve and the upper sleeve head nail shank on the first header connector is inserted into the pedicle screw head when the pedicle screw threaded tail cap cooperating with a threaded connecting pedicle screws before the end of the pedicle screw threaded into the cap after the anti-backup locking knob is pushed to push buttons to bounce. 椎弓根螺钉植入时医师用一手握住方向护套能掌握入钉方向另一只手通过旋转快换手柄即可将椎弓根螺钉植入。 When pedicle screw implant holding with one hand the direction of a physician can grasp the sheath staple quick other hand direction by rotating the handle to the pedicle screw implant.

[0007] 上述椎弓根螺钉上钉器操作方便、使用安全可靠,其特征是使用时将上钉杆头部连接头插入椎弓根螺钉、然后通过旋紧螺母将上钉套管头部螺纹旋入椎弓根螺钉尾帽充分锁紧后将防退旋钮前推至锁紧摁钮弹起即可。 [0007] pedicle screw pilot hole to facilitate said operation, safety and reliability, characterized in that the upper connector insert the shank head pedicle screw use, and then by screwing the sleeve nut on the nail head thread end cap screwed into the pedicle screw before the full locking push-off knob to the lock after anti-bounce to push buttons. 上述旋紧螺母设有卡齿工作时与防退旋钮上卡槽配合、同时锁紧摁钮卡入上钉杆上所设正8方,这样上钉器与椎弓根螺钉有效的连接为一体在不去除锁紧力的作用下牢固无松动。 Tighten the nut with the above work with the anti-backup latches with the knob slot, and a locking snap into the press nail 8 positive pole side of the set, so that the pedicle screw nails integrally connected to a valid under the action does not remove the locking force firmly without loosening. 经过反复实验验证将防退旋钮卡槽分为16等份30°时上钉杆设为正8方最能有效锁紧椎弓根螺钉。 After repeated experiments of the anti back into the slot when the knob 16 of the shank 30 ° aliquots 8 side is positive most effective locking pedicle screw.

[0008] 下面通过附图对本发明椎弓根螺钉上钉器做进一步说明。 [0008] Next, the pedicle screw of the present invention is further illustrated by the staple drawings.

附图说明 BRIEF DESCRIPTION

[0009] 图1是本发明椎弓根螺钉上钉器的结构示意图; [0009] FIG. 1 is a schematic view of the staple of the present invention, the structure of the pedicle screw;

[0010] 图2是本发明椎弓根螺钉上钉器上钉杆的结构示意图; [0010] FIG. 2 is a schematic view on a staple of the present invention, a pedicle screw shank;

[0011] 图3是本发明椎弓根螺钉上钉器上钉套管的结构示意图; [0011] FIG. 3 is a schematic structural diagram of a pedicle screw of the present invention on the staple of the staple casing;

[0012] 图4是本发明椎弓根螺钉上钉器方向护套的结构示意图; [0012] FIG. 4 is a schematic structural diagram of the present invention, the pedicle screw direction of the sheath staple;

[0013] 图5是本发明椎弓根螺钉上钉器旋紧螺母的结构示意图; [0013] FIG. 5 is a schematic structural diagram of a nut screwed on the staple pedicle screw of the present invention;

[0014] 图6是本发明椎弓根螺钉上钉器防退旋钮的结构示意图; [0014] FIG. 6 is a schematic view of the staple on the return-preventing knob pedicle screw of the present invention;

[0015] 图7是本发明椎弓根螺钉上钉器防退原理的结构示意图; [0015] FIG. 7 is a schematic structural diagram of a pedicle screw of the nail of the present invention, the principles of anti-backup;

[0016] 图8是本发明椎弓根螺钉上钉器用于万向椎弓根螺钉的示意图; [0016] FIG. 8 is a schematic diagram of the present invention, the pedicle screw for universal staple pedicle screw;

[0017] 图9是本发明椎弓根螺钉上钉器用于单向椎弓根螺钉的示意图。 [0017] FIG. 9 is a schematic view of the pedicle screw of the present invention for unidirectional staple pedicle screw.

[0018] 本发明椎弓根螺钉上钉器图中: [0018] FIG pedicle screw on the nail of the present invention:

[0019] 1、上钉杆 2、上钉套管3、方向护套 [0019] 1, 2 on the shank, the nail on the sleeve 3, the direction of the sheath

[0020] 4、旋紧螺母5、锁紧摁钮6、防退旋钮 [0020] 4, 5 tighten the nut, locking push buttons 6, return-preventing knob

[0021] 7、弹簧 8、正8方 9、快换接头 [0021] 7, spring 8, n 9 8 side, quick connectors

[0022] 10、螺纹 11、卡齿 12、卡槽 [0022] 10, threads 11, latch 12, slot

[0023] 13、连接头14、T型快换手柄15、万向椎弓根螺钉 [0023] 13, connector 14, T-type quick-change lever 15, the pedicle screw joint

[0024] 16、直型快换手柄17、单向椎弓根螺钉 [0024] 16. The quick-change lever 17 straight, unidirectional pedicle screw

具体实施方式 Detailed ways

: :

[0025] 结合附图对本发明椎弓根螺钉上钉器的结构和功能加以说明。 [0025] will be described in conjunction with the accompanying drawings of the structure and function of the pedicle screw driving tool of the present invention.

[0026] 如附图所示,本发明椎弓根螺钉上钉器,上述椎弓根螺钉上钉器由上钉杆(I)、上钉套管(2)、方向护套(3)、旋紧螺母(4)、防退旋钮(6)、锁紧摁钮(5)、弹簧(7)组成。 [0026] As shown in the drawings, the pedicle screw of the present invention, the nail, said nail consists of a pedicle screw shank (the I), the staple sleeve (2), the direction of the sheath (3), tighten the nut (4), the anti-back knob (6), locking push buttons (5), a spring (7) composition. 上述上钉杆(I)头部设有与椎弓根螺钉连接的连接头(13)、根据与单向椎弓根螺钉(17)和万向椎弓根螺钉(15)连接分别设计成T型和直型,中间设有与锁紧摁钮配合的正8方(8)在使用中可以实现防退旋钮在任意角度直接向前推紧就能锁紧椎弓根螺钉,尾部设有快换接头 The upper shank (I) with the head connector (13) connected to the pedicle screws, pedicle screws and the universal according to (15) connected to a one-way pedicle screws (17) are designed as T and straight, intermediate and provided with a locking push buttons 8 positive side (8), in use, may be implemented directly forward anti-backup push knob can be immediately at any angle locking screw, fast with the tail touch fitting

(9)术中可根据医师的需求连接T型快换手柄(14)或直型快换手柄(16)。 (9) can be connected to T-surgery physician according to the needs of the quick-change lever (14) or straight quick handle (16). 上述上钉套管 The upper nail sleeve

(2)设有与椎弓根螺钉尾帽连接的螺纹(10)。 (2) provided with a thread (10) is connected to the end cap of the pedicle screw. 上述旋紧螺母(4)设有卡齿(11)、卡齿(11)角度为30°。 Above tightening nut (4) has a latch (11), the latch (11) an angle of 30 °. 上述防退旋钮(6)设有卡槽(12),实验证明卡槽(12)角度设为30° 16等分时防退旋钮(6)无需角度随意向前推紧时即可锁紧椎弓根螺钉。 The above-described anti-backup knob (6) is provided with slots (12), proved slot (12) angle is 30 ° 16 equally divided vertebral anti-backup locking knob to (6) without arbitrarily pushed tight forward angle pedicle screws.

[0027] 本发明椎弓根螺钉上钉器是这样实现的: [0027] The present invention pedicle screw nail is implemented as follows:

[0028] 术中准备好椎弓根螺钉和配套椎弓根螺钉上钉器、使用时将上钉杆(I)头部的连接头(13)插入椎弓根螺钉、用旋紧螺母(4)将上钉套管(2)上螺纹(10)旋入椎弓根螺钉尾帽锁紧、将防退旋钮(6)向前推紧到锁紧摁钮(5)弹起,上钉杆尾部的快换接头(9)连接合适的快换手柄。 [0028] Surgery ready pedicle screws and nails pedicle screw, the shank connecting the head (I) of the head (13) is inserted into the pedicle screw use, with a tightening nut (4 ) staple upper sleeve (2) on thread (10) screwed into a pedicle screw locking the end cap, the return-preventing knob (6) pushed forward into tight locking push buttons (5) bounces on the shank tail-touch fitting (9) is connected suitable quick-change lever. 完成好椎弓根螺钉上钉器与椎弓根螺钉的连接后,用手扶住方向护套(3)用另一只手旋转快换手柄将椎弓根螺钉植入预先准备好的椎弓根通道。 After completion of the connection with the pedicle screws staple good on pedicle screws, hand on the direction of the sheath (3) rotating quick-change lever with the other hand to the pedicle screw implanted in a prepared arch root channel.

[0029] 本发明椎弓根螺钉上钉器独特的防退结构设计具有真正意义上完全锁紧椎弓根螺钉的功能、并且能完全避免术中刮破医师手套。 [0029] The pedicle screw according to the present invention is unique staple anti-backup locking design truly fully functional significance on the pedicle screws, and can completely avoid intraoperative scratch physician gloves. 任何利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例,均仍属于本发明技术方案的范围内。 Any modification to make minor modifications or equivalent embodiments of equivalent variations, provided they fall within the scope of the present invention using the techniques disclosed in the content.

Claims (3)

1.一种椎弓根螺钉上钉器,其特征是上述椎弓根螺钉上钉器由上钉杆(I)、上钉套管(2)、方向护套(3)、旋紧螺母(4)、防退旋钮(6)、锁紧摁钮(5)、弹簧(7)组成,上述椎弓根螺钉上钉器锁紧椎弓根螺钉时先将上钉杆头部连接头(13)插入椎弓根螺钉然后将上钉套管头部螺纹(10)旋入椎弓根螺钉尾帽后将防退旋钮(6)前推至锁紧摁钮(5)弹起即可。 A pedicle screw nail, wherein said pedicle screw pilot hole is made on the shank (the I), the staple sleeve (2), the direction of the sheath (3), tighten the nut ( 4), the anti-back knob (6), locking push buttons (5), a spring (7), with the first locking nail when the pedicle screw pedicle screw shank on said connector head (13 ) is inserted into the pedicle screw is then threaded on the nail head sleeve (10) screwed into the pedicle screw after the end of anti-backup knob cap (6) to push the locking front push buttons (5) to bounce.
2.根据权利要求1所述的椎弓根螺钉上钉器,其特征是上述上钉杆(I)头部连接头(13)设计成T型时能用于植入单向椎弓根螺钉(17)、设计成直型时能植入万向椎弓根螺钉(15),上钉杆(I)尾部结构为快换接头、能连接T型快换手柄(14)或直型快换手柄(16)。 The pedicle screw nail of claim 1, wherein said upper shank (I) as claimed in claim connector head (13) is designed as a T-type implant can be used for unidirectional pedicle screw (17), when the straight joint implant designed to pedicle screws (15), the shank (I) tail structure quick couplings, can be connected to T-type quick-change lever (14) or straight quick a handle (16).
3.根据权利要求1所述的椎弓根螺钉上钉器,其特征是上述旋紧螺母(4)设有卡齿(11)、卡齿尺寸选用30°,上述防退旋钮(6)设有16等份卡槽(12)、卡槽尺寸选用30°,上述上钉杆(I)设有正8方(8),上述结构配合能锁紧椎弓根螺钉。 The pedicle screw nail of claim 1, wherein said tightening nut (4) has a latch (11) as claimed in claim size selection latch 30 °, the above-described return-preventing knob (6) provided 16 aliquots slot (12), the choice of slot dimensions 30 °, the upper shank (I) provided 8 positive side (8), the above-described configuration can lock with pedicle screws.
CN201310659877.7A 2013-12-05 2013-12-05 Pedicle screw nailing device CN104688326A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105596077A (en) * 2016-02-06 2016-05-25 贺新宁 Universal screw-setting device for pedicle screw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105596077A (en) * 2016-02-06 2016-05-25 贺新宁 Universal screw-setting device for pedicle screw

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