CN104188718A - Lengthened minimally-invasive hollow pedicle screw - Google Patents

Lengthened minimally-invasive hollow pedicle screw Download PDF

Info

Publication number
CN104188718A
CN104188718A CN 201410473937 CN201410473937A CN104188718A CN 104188718 A CN104188718 A CN 104188718A CN 201410473937 CN201410473937 CN 201410473937 CN 201410473937 A CN201410473937 A CN 201410473937A CN 104188718 A CN104188718 A CN 104188718A
Authority
CN
China
Prior art keywords
nut
provided
lengthened
pedicle screw
hollow
Prior art date
Application number
CN 201410473937
Other languages
Chinese (zh)
Inventor
陶凯
余强
方华
徐崧崧
Original Assignee
常州市康辉医疗器械有限公司
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.)
Filing date
Publication date
Application filed by 常州市康辉医疗器械有限公司 filed Critical 常州市康辉医疗器械有限公司
Priority to CN 201410473937 priority Critical patent/CN104188718A/en
Publication of CN104188718A publication Critical patent/CN104188718A/en

Links

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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • 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
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7074Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • 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
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7074Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A61B17/7091Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for applying, tightening or removing longitudinal element-to-bone anchor locking elements, e.g. caps, set screws, nuts or wedges
    • 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
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • 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
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B17/8625Shanks, i.e. parts contacting bone tissue
    • A61B17/863Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
    • 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
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B17/864Threaded wires, pins or screws; 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
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B17/8665Nuts
    • 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
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B17/8685Threaded wires, pins or screws; Nuts therefor comprising multiple separate parts

Abstract

The invention relates to the technical field of medical surgical instruments, in particular to a lengthened minimally-invasive hollow pedicle screw having a protective cover and intended for spinal correction and internal fixation. The lengthened minimally-invasive hollow pedicle screw comprises a cap, a shank and a compression washer; the upper portion of the shank is mounted in the cap and limited and fixed through the compression washer; the cap comprises a base and a lengthened sleeve which are integrated, and a wedged groove is formed between the base and the lengthened sleeve and allows convenient intraoperative breakage; two sides of the cap are provided with elongated slots; each elongated slot is composed of a lifting reset slot, a breaking tool slot and a breaking tool receiving slot which are communicated with one another and which are used for lifting reset, inserting of a breaking tool and breaking of a lengthened segment of the cap respectively; other two sides of the cap are provided with U-shaped slots allowing convenient intraoperative insertion of a rod; a protective plate is arranged at the upper end of each U-shaped slot and protects the cap from deformation during transporting.

Description

一种加长型微创空心椎弓根螺钉 One kind of hollow lengthened minimally invasive pedicle screw

技术领域 FIELD

[0001] 本发明一种加长型微创空心椎弓根螺钉涉及的是外科医疗器械技术领域,具体地说,是一种用于脊柱矫正和内固定的带保护套的微创空心椎弓根螺钉。 [0001] The present invention provides a lengthened hollow minimally invasive pedicle screw relates to a surgical instrument technical field, particularly, with a fixed protective cover minimally invasive spinal correction and inner hollow for pedicle screws.

背景技术 Background technique

[0002] 随着手术器械不断更新、先进的医疗影像设备的不断出现以及术中计算机辅助导航的应用,微创技术在脊柱外科中发展很快。 [0002] As surgical instruments constantly updated, emerging advanced medical imaging equipment and computer-assisted surgery navigation applications, rapid development of minimally invasive techniques in spinal surgery. 目前普通手术为了安装的方便,开到操作面大,手术创伤大,愈合慢,容易引起创伤面的并发症,而微创是指以最小的侵袭和最小的生理干扰达到最佳的手术疗效的一种手术或检查方式,最主要的特征是是创伤微小化。 Current general procedure for ease of installation, the opening operation is large, surgical trauma, slow-healing, wound surface easily lead to complications, but refers to the minimal invasive and invasive physiological perturbations minimum optimal surgical treatment a surgical or examination way, the most important feature is traumatic miniaturization. 外科手术作为有计划的创伤,术者应力求将手术的创伤降低到最低限度,达到微创的目的。 Trauma surgery as planned, the surgeon should seek to reduce surgical trauma to a minimum, achieve the purpose of minimally invasive. 微创手术减少手术时间,降低并发症的发病率,减轻术中组织损伤和出血,缩短患者恢复时间, 减轻手术疼痛,是切口美观,缩短住院和康复时间,降低药物使用和住院花费的经济成本。 Minimally invasive surgery to reduce surgery time, reduce the incidence of complications, reduce intraoperative bleeding and tissue damage, reduce patient recovery time, reduce postoperative pain, incision is beautiful, shorter hospital stays and recovery time, reduce drug use and the economic costs of hospital spending . 总之,微创手术从医学专业属性和社会属性这两方面满足了和谐社会对公共医疗卫生事业的要求,随着科技的发展,脊柱微创技术将作为传统外科技术的一部分,成为脊柱内固定技术发展的一大趋势。 In short, minimally invasive surgery from a medical professional to meet and social properties both a harmonious society requires public medical and health services, the development of technology, minimally invasive spine techniques as part of the traditional surgical techniques become spinal fixation a major trend.

发明内容 SUMMARY

[0003] 本发明目的是针对上述不足之处提供一种加长型微创空心椎弓根螺钉,一种加长型微创空心椎弓根螺钉钉帽加长套管与手术工具配合经皮进入组织,创伤小,尤其是创伤的横截面积大大减小;所述一种加长型微创空心椎弓根螺钉钉帽加长套管的腰形槽配合手术工具可以在体外操作进行提拉复位,同时还起到与手术工具配合折断的作用,所述一种加长型微创空心椎弓根螺钉钉帽的U型槽上端设有保护片,可以在产品运输过程中确保产品外形不变形。 [0003] The object of the present invention to provide a lengthened hollow for minimally invasive pedicle screw of the above disadvantages a lengthened hollow minimally invasive pedicle screw nut elongated surgical tool fitted with the sleeve into the tissue percutaneously, trauma, in particular trauma greatly reduced cross-sectional area; kidney-shaped groove of the one lengthened minimally invasive pedicle screw nut hollow elongated casing with a surgical tool can be pulled in vitro reset operation, and also functions and a surgical tool with breaking action, the one type of minimally invasive hollow elongated U-shaped upper slot pedicle screw nut provided with a protective sheet, to ensure that the product shape is not deformed during transportation of the product.

[0004] 一种加长型微创空心椎弓根螺钉是采取以下技术方案实现: 一种加长型微创空心椎弓根螺钉由钉帽、钉体、压紧垫圈组成,钉体上部安装在钉帽内,并通过压紧垫圈限位固定。 [0004] A lengthened minimally invasive pedicle screw is hollow to take the following technical solution: one kind lengthened by a minimally invasive pedicle screw nut hollow nail body, pressing washers, the upper body is mounted in the staple staple inner cap, and is fixed by caulking washer stopper. 钉帽设有钉座和加长套管,钉座和加长套管为一整体,在钉座和加长套管之间设有楔形槽,以便术中折断;钉帽两侧面设有腰形槽,所述的腰形槽有提拉复位槽、折断工具槽、折断工具插入槽组成,提拉复位槽、折断工具槽和折断工具插入槽连通,分别用于提拉复位,折断工具插入及钉帽加长断的折断;钉帽另两侧面设有U型槽, 在术中方便棒的置入;在U型槽上端设有保护片,可在运输过程中保护钉帽不变形,保护片与加长套管间设有短筋相连,在术中易于折断;钉帽下部内壁设有内螺纹,钉体采用中空设计。 And the nut is provided with elongated anvil sleeve, the sleeve is elongated anvil body and an integral dovetail groove is provided between the anvil and the elongated sleeve to fracture surgery; both side surfaces of the nut is provided with kidney-shaped grooves, the kidney-shaped groove reset pull grooves, grooves break tool, the tool insertion groove composed break, pulling the reset slot, breaking and breaking tool slot jig insertion groove communicating, respectively, for pulling the reset broken tool is inserted and nut elongated broken off; the other both side surfaces of the nut is provided with a U-shaped groove in the rod to facilitate placement surgery; a protective sheet in the upper end of the U-shaped groove, the nut can be protected during transport is not deformed, elongated protective sheet casing connected with short ribs, break easily during surgery; a lower portion of the inner wall of the nut is provided with an internal thread, a staple hollow body design.

[0005] 工作原理脊柱手术时切皮后,通过管路扩张系统扩皮微创操作,在植入钉体的相应部位插入导针,通过中空的手术工具将螺钉按照先前置入的导针安装到相应位置,之后撤离管路扩张系统,根据术中实际情况利用相应手术工具可选择折断保护片,通过U型槽放入棒后拧入相配合的螺塞,之后可按照术中实际情况利用相应手术工具与腰形槽中的提拉复位槽配合后可对脊柱进行提拉复位,使椎弓根钉与内固定棒接触良好。 After incision when the principles of spinal surgery [0005] work, through the pipe system, expansion of minimally invasive procedures enlarged scale, corresponding parts of the implant body is inserted into the staple guide pin, the surgical tool through the hollow screw as previously inserted in the guide pin mounting into position, after expansion of the evacuation piping system, according to the actual situation with a corresponding intraoperative surgical tool selectively broken protective sheet, screwed into the mating plug through the U-shaped channel bar, then surgery may be utilized in accordance with the actual situation pulling the spine can be reset with a respective groove pulling reset the surgical tool and the kidney-shaped groove, so that good fixation of the rod in contact with the pedicle screw. 螺塞压住内固定棒后,旋转到位,即可通过相应的折断工具插入腰形槽中的折断工具插入槽,继而配合腰形槽中的折断工具槽将加长部分折断取出,操作方便,适用于脊柱矫形和复位,安全有效。 After pressing the inner plug holding rods, rotated into place, can be inserted into the slot insertion tool waisted break tank by respective breaking tool, then with the break groove waisted the elongated groove portions broken tool removed, easy to operate, applicable in spine and orthopedic reset, safe and effective.

[0006] 本发明一种加长型微创空心椎弓根螺钉优点: (1) 所述一种加长型微创空心椎弓根螺钉钉帽加长套管与手术工具配合经皮进入组织,创伤小,尤其是创伤的横截面积大大减小; (2) 所述一种加长型微创空心椎弓根螺钉钉帽加长套管的腰形槽配合手术工具可以在体外操作进行提拉复位,同时还起到与手术工具配合折断的作用; (3) 所述一种加长型微创空心椎弓根螺钉钉帽的U型槽上端设有保护片,可以在产品运输过程中确保产品外形不变形; (4) 所述一种加长型微创空心椎弓根螺钉钉体螺纹双头变径设计可增加螺钉的把持力且进钉速度快; (5) 所述一种加长型微创空心椎弓根螺钉钉体为中空设计,采用中空的工具可沿先前的导针安装到相应部位。 [0006] The present invention provides a lengthened hollow minimally invasive pedicle screw advantages: (1) said one lengthened minimally invasive pedicle screw nut hollow elongate sleeve fit with a surgical tool percutaneously into the tissue trauma especially trauma greatly reduced cross-sectional area; (2) the one lengthened minimally invasive pedicle screw nut hollow elongated casing with kidney-shaped groove of the surgical tool may be pulled in vitro reset operation while and also functions as a surgical tool with breaking action; upper groove (3) of said one elongated hollow type minimally invasive pedicle screw nut is provided with a U-shaped protective sheet, to ensure that the product shape is not deformed during transportation of the product ; (4) the one type of minimally invasive elongated hollow body pedicle screw threaded stud nails adjustable screw design and increase the gripping force of the staple into the fast speed; (5) the one type of elongated hollow minimally invasive vertebral pedicle screws a hollow body is a staple design with a hollow along the tool previously mounted to the corresponding parts of the guide pin.

附图说明 BRIEF DESCRIPTION

[0007] 以下将结合附图对本发明作进一步说明: 图1是一种加长型微创空心椎弓根螺钉结构主视图。 [0007] conjunction with the accompanying drawings will further illustrate the present invention: FIG. 1 is an elongated hollow minimally invasive pedicle screw type structure of the main view.

[0008] 图2是述一种加长型微创空心椎弓根螺钉结构左视图。 [0008] FIG. 2 is a minimally invasive type of said one kind of elongated hollow structure left side view of the pedicle screw.

[0009] 图3是一种加长型微创空心椎弓根螺钉压紧垫圈的结构主视图。 [0009] FIG. 3 is a lengthened hollow minimally invasive pedicle screw washer pressing a front view of the structure. _〇] 附图中的标号为:1、钉帽,11、U型槽,12、钉座,13、内螺纹一,14、圆柱一,15、槽一,16、槽二,17、球形臼杯一,1S、通孔一,19、加长套管,110、腰形槽,1101、提拉复位槽, 1102、折断工具插入槽,1103、折断工具槽,111、楔形槽, 112、保护片,113、短筋,2、钉体,21、 球形臼体,22、内六角孔,23、台阶,24、双头螺纹,25、中空孔,3、压紧垫圈,31、通孔二,32、U 型槽孔,33、凸起,34、球形臼杯二,35、圆柱二。 _〇] reference numerals are as follows: 1, a nail, 11, U-groove 12, anvil 13, a female screw 14, a cylinder 15, a groove 16, two grooves, 17, spherical a cup, lS, a through hole 19, extension sleeve 110, kidney-shaped groove 1101, the groove pulling reset, 1102, break-off tool insertion groove 1103, the groove tool break, 111, the wedge-shaped groove 112, the protection sheet 113, short ribs, 2, the nail body 21, a spherical acetabular body 22, a hexagon socket, 23, a step 24, a threaded stud 25, the hollow hole, 3, compression gasket 31, two through holes , 32, U-type slot 33, the projection 34, two spherical cups, 35, two cylindrical.

具体实施方式 Detailed ways

[0011]参照附图1、2、3, 一种加长型微创空心椎弓根螺钉由钉帽丨、钉体2、压紧垫圈3组成,钉体2上部安装在钉帽丨内,并通过压紧垫圈3限位固定。 [0011] Referring to figures 2, 3 A hollow minimally lengthened by a pedicle screw nut Shu, nail 2, 3 pressing the gasket composition, the nail body 2 is mounted in the upper nut Shu, and 3 is fixed by pressing the stopper washer. 钉帽1设有钉座12和加长套管19,钉座12和加长套管19为一整体,在钉座12和加长套管19之间设有楔形槽111, 以便术中折断;钉帽1两侧面设有腰形槽110,所述的腰形槽n〇有提拉复位槽1101、折断工具槽1103、折断工具插入槽1102组成,提拉复位槽11〇1、折断工具槽11〇3和折断工具插入槽1102连通,分别用于提拉复位,折断工具插入及钉帽加长断的折断;钉帽1另两侧面设有U型槽11,在术中方便棒的置入;在u型槽u上端设有保护片112,可在运输过程中保护钉帽不变形,保护片II2与加长套管19间设有短筋相连,在术中易于折断;钉帽1下部内壁设有内螺纹,钉体2为中空。 1 with the nut 12 and the anvil extension sleeve 19, anvil 12 and elongate sleeve 19 as a whole, the wedge-shaped groove 111 is provided between the anvil 12 and elongate sleeve 19, so that the breaking operation; nut 1 is provided with both side surfaces of the kidney-shaped groove 110, the kidney-shaped groove n〇 have reset the pulling groove 1101, the groove 1103 breaking tools, breaking tools composition insertion groove 1102, the groove 11〇1 pulling reset, breaking tool slot 11〇 3 and break communication tool insertion groove 1102, respectively, for pulling the reset tool insertion broken off and broken elongated nut; the other both side surfaces of the nut 1 is provided with a U-shaped groove 11, the rod into convenient surgery; in u u-groove upper end provided with a protective sheet 112, to protect the nut during transport without deformation, and II2 protective sheet 19 is provided with elongated sleeve connected short ribs, break easily during surgery; nut is provided with a lower inner wall an internally threaded, hollow nails 2.

[0012]以下提供所述一种加长型微创空心椎弓根螺钉一种加长型微创空心椎弓根螺钉的具体实施方式。 [0012] The following provides specific embodiments of the one lengthened hollow minimally invasive pedicle screw type one kind of hollow elongated pedicle screw.

[0013] 附图1和图2为所述一种加长型微创空心椎弓根螺钉的二维示意图,附图3为压紧垫圈的二维示意图。 [0013] FIG. 1 and FIG. 2 is a minimally invasive type of the one elongated hollow dimensional schematic view of the pedicle screw, Figure 3 is a schematic view of a two-dimensional compression of the gasket.

[0014] 如附图1和图2所示,所述一种加长型微创空心椎弓根螺钉一种新型微创空心椎弓根螺钉由钉帽1、钉体2、压紧垫圈3组成,钉体1安装在钉帽2内,并通过压紧垫圈3限位固定。 [0014] As shown in Figures 1 and 2, the one lengthened hollow minimally invasive pedicle screw a new hollow pedicle screw by the nut 1, the staple 2, 3 pressing the gasket composition , the staple 1 is mounted in the nut 2, and the stopper 3 is fixed by caulking washer.

[0015] 如附图1和图2所示,所述的钉帽1设有钉座12和加长套管19,钉座12和加长套管为一整体,钉座12两侧内壁开有与钉帽轴向垂直的槽一15和槽二16,在钉座12和加长套管19之间设有楔形槽111,钉帽1两侧面设有腰形槽110,腰形槽110由提拉复位槽1101、 折断工具插入槽1102、折断工具槽1103组成,钉帽1另两侧面设有U型槽ll,u型槽11开口一端内壁设有内螺纹-13;内壁主体为圆柱一14,钉帽1底部设有球形臼杯一17和通孔一18 ;钉帽上端两侧设有保护片112,保护片112与加长套管19间有短筋113相连。 [0015] As shown in Figures 1 and 2, the nut is provided with an anvil 12 and elongate sleeve 19, 12 on both sides of the inner wall 12 and the anvil extension sleeve as a whole, and opened anvil grooves perpendicular to the axial nut 15 and a two slot 16, the wedge-shaped groove 111 is provided between the anvil 12 and elongate sleeve 19, both side surfaces of the nut is provided with a kidney-shaped groove 110, kidney-shaped groove 110 by the pulling recovery groove 1101, break-off tool insertion groove 1102, the groove 1103 composition broken tool, both side surfaces of the nut 1 is provided with another U-shaped groove ll, 11-slot opening end of the inner wall is provided with an internal thread u -13; the inner wall of a cylindrical body 14, 1 is provided with a spherical bottom of the nut cup 17 and a through hole 18 a; both sides of the upper end of the nut 112 provided with a protective sheet, protective sheet 112 and elongated sleeve 113 with a short ribs 19 are connected.

[0016] 如附图1所示,所述的钉体2头部设有球形臼体21和内六角孔22,球形臼体端部设有若千台阶23,钉体头部的球形臼体21与钉帽上的球形臼杯一17和压紧垫圈3上的球形臼杯二34配合;钉体身部螺纹为双头螺纹24,钉体为中空25。 , The head portion 2 of the nail body 21 and is provided with a hexagon socket 22, the spherical end portion mortar body is provided with a spherical acetabular if one thousand step 23, the spherical body staple mortar forebody [0016] The accompanying drawings 1 spherical cup 17 and a spherical washer pressing on the cup 3 and 21 on the nut 34 with two; staple threaded shank portion is a threaded stud 24, the staple member 25 is hollow.

[0017] 如附图1和图3所示,所述的压紧垫圈3设有通孔二31,一端开有U型槽孔32, 两边缘凸起33卡于钉帽内壁的槽一15处用以限位,压紧垫圈下端设有球形白杯二34,压紧垫圈外侧主体为圆柱二35,与钉帽内壁主体圆柱一14匹配。 [0017] The figures 1 and 2, the gasket 3 is provided with three pressing two through holes 31, one end of the U-shaped slot 32 is opened, both edges of the projection 33 is engaged in a groove of the inner wall of the nut 15 at the limit for pressing the gasket lower end 34 is provided with two spherical white cup, pressing the gasket 35 two outer cylindrical body, a cylindrical body with an inner wall of a nut 14 matches.

[0018] 该发明微创空心椎弓根螺钉装配流程为:首先将钉体2穿过钉帽1的通孔一18 处,其球头臼体21与钉帽的球形臼杯一17配合;再将压紧垫圈3卡入,垫圈的球形臼杯二34与钉体的球形臼体21配合,两边缘凸起33卡于钉帽的槽一15处。 [0018] The hollow invention minimally invasive pedicle screw assembly process: first through-holes 2 through the nut body 1 of the nail at a 18, the spherical head 21 and the acetabulum of the nut 17 with a spherical acetabular cup; then pressing the gasket into the card 3, the spherical washer 21 with a spherical acetabular cup body 34 and two nail body, both edges of the projection 33 is engaged in a nut 15 at the groove. 装配后钉体2和压紧垫圈3不能从钉帽1上脱出。 After pressing fitting nail body 2 and the gasket 3 can not be disengaged from the nut 1.

[0019] 所述一种加长型微创空心椎弓根螺钉钉帽侧面独特的加长套管19、保护片112及腰形槽110设计,钉帽两侧的u形槽11在加长套管I 9的作用下使得在术中更加容易的调整固定棒的放置位置,上端保护片II2确保在运输过程中产品不发生变形,腰形槽在术中配合工具可同时起到提拉复位及折断的作用。 [0019] The one unique lengthened minimally invasive pedicle screw nut side surface of the hollow elongated sleeve 19, the protective sheet 112 and waist 110 is designed u-shaped groove, on both sides of the nut-shaped groove 11 in the sleeve extension I making it easier to adjust the placement of the fixed rod, the upper end of the protective sheet during surgery to ensure that the product II2 not deformed during transport under the action 9, the kidney-shaped groove fitted in the surgery tool can function both pulling and resetting broken effect. 手术时,微创操作,通过中空的手术工具,利用钉体的中空25将螺钉按照先前置入的导针安装到相应位置,根据术中实际情况利用相应手术工具可选择折断保护片112,通过U型槽11放入棒后拧入相配合的螺塞,之后可按照术中实际情况利用相应手术工具与腰形槽中的提拉复位槽1101配合后可对脊柱进行提拉复位,使椎弓根钉与内固定棒接触良好。 Surgery, minimally invasive procedures, the surgical tool through the hollow, using a hollow staple 25 of the screw member mounted to the respective position of the guide pin inserted as previously, with a corresponding surgical tool according to the actual situation of surgery protective sheet 112 selectively broken through pulling the spine can be reset into a U-shaped groove 11 is screwed into the mating plug rod, then pulled the reset groove 1101 may be utilized with the appropriate surgical tool in accordance with the kidney-shaped groove in the actual operation, so that the vertebral pedicle screw and rod fixation good contact. 螺塞压住内固定棒后,旋转到位,即可通过相应的折断工具插入腰形槽中的折断工具插入槽1102,继而配合腰形槽中的折断工具槽1103将加长部分折断取出,减少植入物在体内的体积,操作方便,适用于脊柱矫形和复位,安全有效。 After pressing the inner plug holding rods, rotated into place to insert a break-off tool insertion groove 1102 waisted tank by respective breaking tool, then the tool with the break groove of the groove 1103 waisted breaking extension portion removed, reduced plant It was the volume of the body, easy to operate, and is suitable for orthopedic spinal reset, safe and effective.

[0020] 以上所述仅是所述一种加长型微创空心椎弓根螺钉的优选实施方式,应当指出, 对于本技术领域的普通技术人员,在不脱离所述一种加长型微创空心椎弓根螺钉构思的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为所述一种加长型微创空心椎弓根螺钉的保护范围内。 [0020] The above are only preferred embodiments of the minimally invasive way lengthened hollow pedicle screw, it should be noted that for those of ordinary skill in the art, without departing from the one type of minimally invasive hollow elongated premise pedicle screw concept, can make various improvements and modifications, improvements and modifications should be considered within the scope of the one lengthened hollow minimally invasive pedicle screw.

Claims (8)

1· 一种加长型微创空心椎弓根螺钉,其特征在于:由钉帽、钉体、压紧垫圈组成,钉体上部安装在钉帽内,并通过压紧垫圈限位固定,钉帽设有钉座和加长套管,钉座和加长套管为一整体,在钉座和加长套管之间设有楔形槽,以便术中折断;钉帽两侧面设有腰形槽,所述的腰形槽有提拉复位槽、折断工具槽、折断工具插入槽组成,提拉复位槽、折断工具槽和折断工具插入槽连通,分别用于提拉复位,折断工具插入及钉帽加长断的折断;钉帽另两侧面设有U型槽一,在术中方便棒的置入;在υ型槽一上端设有保护片,可在运输过程中保护钉帽不变形。 1 • one lengthened hollow minimally invasive pedicle screw, characterized in that: a nut, the staple body compression washers, staples the upper body is mounted in the nut, washer and is fixed by pressing the stopper, nut and extension sleeve is provided with anvil, anvil sleeve and elongated as a whole, is provided with V-shaped groove between the anvil and the elongated sleeve to fracture surgery; both side surfaces of the nut is provided with kidney-shaped grooves, said the kidney-shaped groove reset pull grooves, grooves break tool, the tool insertion groove composed break, pulling the reset slot, breaking and breaking tool slot jig insertion groove communicating, respectively, for pulling the reset tool is inserted and break off extended nut breaking; the other both side surfaces of the nut is provided with a U-shaped groove, the rod into convenient intraoperatively; protective sheet is provided in an upper end υ-groove protect the nut does not deform during transport.
2.根据权利要求1所述的一种加长型微创空心椎弓根螺钉,其特征在于:保护片与加长套管间设有短筋相连,在术中易于折断。 2. According to a lengthened hollow minimally invasive pedicle screw according to claim 1, wherein: the sleeve between the protective sheet is provided with elongated ribs connected to a short, break easily during surgery.
3·根据权利要求1所述的一种加长型微创空心椎弓根螺钉,其特征在于:钉帽下部内壁设有内螺纹。 3. The claim requires a lengthened hollow minimally invasive pedicle screw of claim 1, wherein: the nut is provided with a lower inner wall of the inner thread.
4·根据权利要求1所述的一种加长型微创空心椎弓根螺钉,其特征在于:钉体为中空。 4. The claim requires a lengthened hollow minimally invasive pedicle screw claim 1, wherein: a hollow body is a staple.
5.根据权利要求1所述的一种加长型微创空心椎弓根螺钉,其特征在于:钉帽另两侧面设有的U型槽开口一端内壁设有内螺纹一;内壁主体为圆柱一,钉帽底部设有球形臼杯一和通孔一。 Claimed hollow requires a minimally invasive pedicle screw lengthened to claim 1, wherein: the nut is provided with the other side surfaces of the inner walls of the U-shaped groove opening at one end an internally threaded; the inner wall of a cylindrical body staple bottom spherical cap is provided with a cup and a through hole.
6·根据权利要求1所述的一种加长型微创空心椎弓根螺钉,其特征在于:所述的钉体头部设有球形白体和内六角孔,球形白体端部设有若千台阶,钉体头部的球形臼体与钉帽上的球形臼杯一和压紧垫圈上的球形臼杯二配合。 6. According to a lengthened hollow minimally invasive pedicle screw according to claim 1, wherein: said nail body and a head body provided with a spherical white hexagon socket, is provided with a spherical end portion when the white one thousand steps, a spherical acetabular cup on the spherical body and the nut staple pressing member and a spherical head on a cup with two washers.
7. 根据权利要求1所述的一种加长型微创空心椎弓根螺钉,其特征在于:钉体身部螺纹为双头螺纹。 7. According to a lengthened hollow minimally invasive pedicle screw according to claim 1, wherein: the threaded portion of the nail shank start thread.
8. 根据权利要求1所述的一种加长型微创空心椎弓根螺钉,其特征在于:所述的压紧垫圈设有通孔二,一端开有U型槽孔,两边缘凸起卡于钉帽内壁的槽一处用以限位,压紧垫圈下端设有球形臼杯二,压紧垫圈外侧主体为圆柱二,与钉帽内壁主体圆柱一匹配。 8. According to a lengthened hollow minimally invasive pedicle screw according to claim 1, wherein: said pressing two gasket provided with through holes, with a U-shaped slot open at one end, two convex edges of the card the inner wall of the groove of a nut for limiting the pressing washer with a spherical lower end two cups pressing the outer washer body is a cylindrical two, and a nut matching the inner wall of the cylindrical body. ~ ~
CN 201410473937 2014-09-17 2014-09-17 Lengthened minimally-invasive hollow pedicle screw CN104188718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201410473937 CN104188718A (en) 2014-09-17 2014-09-17 Lengthened minimally-invasive hollow pedicle screw

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201410473937 CN104188718A (en) 2014-09-17 2014-09-17 Lengthened minimally-invasive hollow pedicle screw
PCT/CN2014/092033 WO2016041249A1 (en) 2014-09-17 2014-11-24 Lengthened minimally-invasive hollow pedicle screw

Publications (1)

Publication Number Publication Date
CN104188718A true CN104188718A (en) 2014-12-10

Family

ID=52074214

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201410473937 CN104188718A (en) 2014-09-17 2014-09-17 Lengthened minimally-invasive hollow pedicle screw

Country Status (2)

Country Link
CN (1) CN104188718A (en)
WO (1) WO2016041249A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106473783A (en) * 2016-11-22 2017-03-08 常州华森医疗器械有限公司 Strutting sheet for vertebral pedicle fixing system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080082103A1 (en) * 2006-06-16 2008-04-03 Alphatec Spine, Inc. Systems and methods for manipulating and/or installing a pedicle screw
US20090082811A1 (en) * 2007-09-26 2009-03-26 Depuy Spine, Inc. Devices and methods for positioning a spinal fixation element
CN101732086A (en) * 2009-11-14 2010-06-16 常州鼎健医疗器械有限公司 Pedicle nail with shape correcting function
CN202122605U (en) * 2011-05-27 2012-01-25 山东威高骨科材料有限公司 Universal minimally-invasive reset vertebral pedicle nail
CN103519876A (en) * 2012-07-06 2014-01-22 常州市康辉医疗器械有限公司 Internal fixing device for minimally-invasive percutaneous penetration
CN204121155U (en) * 2014-09-17 2015-01-28 常州市康辉医疗器械有限公司 Lengthened minimally-invasive hollow pedicle screw

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202637080U (en) * 2012-07-06 2013-01-02 常州市康辉医疗器械有限公司 Minimally invasive hollow pedicle screw
US20160022341A1 (en) * 2013-03-08 2016-01-28 Anand K. Agarwal Pedicle Screw Assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080082103A1 (en) * 2006-06-16 2008-04-03 Alphatec Spine, Inc. Systems and methods for manipulating and/or installing a pedicle screw
US20090082811A1 (en) * 2007-09-26 2009-03-26 Depuy Spine, Inc. Devices and methods for positioning a spinal fixation element
CN101732086A (en) * 2009-11-14 2010-06-16 常州鼎健医疗器械有限公司 Pedicle nail with shape correcting function
CN202122605U (en) * 2011-05-27 2012-01-25 山东威高骨科材料有限公司 Universal minimally-invasive reset vertebral pedicle nail
CN103519876A (en) * 2012-07-06 2014-01-22 常州市康辉医疗器械有限公司 Internal fixing device for minimally-invasive percutaneous penetration
CN204121155U (en) * 2014-09-17 2015-01-28 常州市康辉医疗器械有限公司 Lengthened minimally-invasive hollow pedicle screw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106473783A (en) * 2016-11-22 2017-03-08 常州华森医疗器械有限公司 Strutting sheet for vertebral pedicle fixing system

Also Published As

Publication number Publication date
WO2016041249A1 (en) 2016-03-24

Similar Documents

Publication Publication Date Title
US20090221877A1 (en) Minimally Invasive Retraction Device Having Detachable Blades
CA2850632C (en) Surgical devices and methods providing sacroiliac stabilization
US20080015591A1 (en) Threaded Guide for an Orthopedic Fixation Plate
ES2666500T3 (en) Surgical instruments
US8911484B2 (en) Multi-axial expandable pedicle screw and an expansion method thereof
US9579134B2 (en) Growth control device
WO2007146032A3 (en) Pedicle screw system
EP1275348A3 (en) Apparatus for use in endoscopic minimally invasive orthopaedic plating procedures
WO2006039279A3 (en) Less invasive surgical system and methods
US8348980B2 (en) Method and plate for fusing the medial column bones of the foot
US8758414B2 (en) Bending tool and method for reshaping a bone plate
JP5756118B2 (en) Fixed support pin with variable angle
US20140378973A1 (en) Implant system for bone fixation
EP2809251B1 (en) Distal radius fracture fixation plate with integrated and adjustable volar ulnar facet support
WO2009073430A3 (en) Threaded access cannula and methods of using the same
CN201275134Y (en) Three-dimension internal fixer for cacroiliac joint
CN103096820B (en) A spine member extending anchor
US9526546B2 (en) Method of using a minimal incision removable bone screw
BRMU8402975U (en) Body extender capable of being implanted through a pedicle for vertebral body reconstruction
US20170035478A1 (en) System and Method for Minimally Invasive Clavicle Plate Application
CN101938948B (en) Pelvic cable solution
CN2873119Y (en) Spine U-shape vertebral pedicle nail
CN201453358U (en) Self-positioned minimally invasive bone fracture plate
CN202235781U (en) Expanding interbody fusion cage
US20150230839A1 (en) Shark Staple

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)