WO2020082250A1 - 一种骨科用取钉装置 - Google Patents

一种骨科用取钉装置 Download PDF

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Publication number
WO2020082250A1
WO2020082250A1 PCT/CN2018/111539 CN2018111539W WO2020082250A1 WO 2020082250 A1 WO2020082250 A1 WO 2020082250A1 CN 2018111539 W CN2018111539 W CN 2018111539W WO 2020082250 A1 WO2020082250 A1 WO 2020082250A1
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Prior art keywords
groove
nail
gantry
screw rod
screw
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PCT/CN2018/111539
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English (en)
French (fr)
Inventor
周小钢
Original Assignee
周小钢
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Publication date
Application filed by 周小钢 filed Critical 周小钢
Priority to DE212018000146.4U priority Critical patent/DE212018000146U1/de
Publication of WO2020082250A1 publication Critical patent/WO2020082250A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices

Definitions

  • the utility model relates to the technical field of medical instruments, in particular to a nail taking device for orthopedics.
  • Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the skeletal and muscular system. It uses drugs, surgery and physical methods to maintain and develop the normal shape and function of this system. With the changes of the times and society, the orthopedic injury spectrum has changed significantly. For example, bone and joint tuberculosis, osteomyelitis, polio and other diseases have been significantly reduced, and the trauma caused by traffic accidents has increased significantly.
  • the purpose of the utility model is to provide a nail-removing device for orthopedics.
  • the nails will not deflect left and right during the process of nail extraction, which can ensure that the damage caused to the patient during the process of nail extraction is minimized, which is beneficial to the patient Rehabilitation, using threaded transmission, can effectively prevent the nail from rebounding during the process of nail extraction, can prevent secondary injuries to patients, safe and reliable, and can avoid accidental injuries to patients to solve the above background Problems raised in technology.
  • a nail-removing device for orthopedics includes a gantry-shaped bracket, and a top surface of the top wall of the gantry-shaped bracket is centrally provided with a first groove, and the first groove
  • the bottom of the second groove is centrally provided with a second groove
  • the bottom of the second groove is provided with a through groove
  • a guide sleeve is fixedly installed inside the through groove
  • a cylindrical mounting seat is fixedly installed inside the second groove
  • the bottom of the cylindrical mounting base communicates with the inside of the guide sleeve
  • the inside of the cylindrical mounting base is fixedly installed with an adjusting base through a rolling bearing
  • the inside of the adjusting base is centrally screwed with a screw, so
  • the bottom end of the screw rod extends through the guide sleeve to between the two side walls of the gantry-type bracket, and a limit groove is opened on the side of the screw rod, and the inner limit of the limit groove is snap-fitted
  • a limit of the screw rod extends through the
  • the gantry-type bracket when removing the nail on the bone of the patient's limb, the gantry-type bracket can be placed across the patient's limb, and then the tail end of the nail on the bone of the patient's limb can be snapped into the interior of the V-shaped slot , And then rotate the two operating handles, the screw will rise or fall under the cooperation of the limit block and the limit groove, and then remove the nail on the bone of the patient's limb.
  • the thread transmission method can effectively prevent the nail from being removed during the process of nail extraction The rebound phenomenon can prevent secondary injury to the patient.
  • both ends of the bottom of the gantry type bracket are welded with support seats.
  • the support base can increase the stability of the gantry-type bracket, can effectively prevent the gantry-type bracket from falling down, and can avoid accidental injury to the patient caused by the gantry-type bracket falling, thereby making the device safe and reliable.
  • a threaded rod is also screwed inside the screw rod, a bottom end of the threaded rod penetrates the bottom of the screw rod, and an upper end of the threaded rod penetrates the upper part of the screw rod, the threaded rod
  • the upper end of the is also welded with a crossbar.
  • the outer sides of the cross bar and the two operating handles are covered with rubber sleeves.
  • the rubber sleeve can increase the static friction between the crossbar and the two operation handles and the operator's hand, thereby making the operation of the device more stable.
  • a round cover is also movably fitted on the outside of the adjustment base, and the round cover is fixedly installed in the first groove by screws.
  • the round cover can not only prevent dust from falling on the rolling bearing, but also increase the overall aesthetics of the device.
  • the bottom wall of the first groove is provided with a screw hole matched with the screw.
  • the round cover can be easily installed inside the first groove by screws.
  • the nails will not deflect from side to side during the process of pulling out the nails, which can ensure that the damage caused to the patients during the process of pulling out the nails is minimized, which is conducive to the rehabilitation of the patients;
  • the utility model adopts the thread transmission mode, which can effectively prevent the nail from rebounding during the process of pulling the nail and prevent the secondary injury to the patient;
  • the support base can increase the stability of the gantry-type bracket, can effectively prevent the gantry-type bracket from falling down, and can avoid accidental injury to the patient caused by the gantry-type bracket falling, thereby making the device safe and reliable;
  • the utility model is convenient to rotate the threaded rod by operating the crossbar, and then use the bottom end of the threaded rod to press the tail end of the nail stuck into the V-shaped slot, which can effectively prevent the nail caught in the V-shaped slot from occurring The phenomenon of shedding can avoid accidental injury to the patient.
  • 1 is a schematic structural view of an embodiment of the utility model
  • FIG. 2 is a schematic diagram of an explosion structure of an embodiment of the utility model
  • FIG. 3 is a schematic diagram of a partial explosion structure of an embodiment of the utility model
  • FIG. 4 is a schematic diagram of the assembly of a gantry type bracket and a support base according to an embodiment of the present invention
  • FIG. 5 is an assembly diagram of a cylindrical mounting base, a guide sleeve and a limit block according to an embodiment of the present invention
  • FIG. 6 is one of the structural schematic diagrams of different perspectives of an embodiment of the utility model
  • FIG. 7 is a schematic diagram of an enlarged structure at A in FIG. 6;
  • FIG. 8 is a schematic view of a partial structure of an embodiment of the utility model
  • FIG. 9 is a schematic diagram of an enlarged structure at B in FIG. 8.
  • a nail-removing device for orthopedics includes a gantry-type bracket 1, the upper surface of the top wall of the gantry-type bracket 1 is centrally provided with a first groove 5, and the first groove 5
  • the bottom is centrally provided with a second groove 3, the bottom of the second groove 3 is provided with a through slot 4, the inside of the through slot 4 is fixedly installed with a guide sleeve 9, and the inside of the second groove 3 is fixedly installed
  • There is a cylindrical mounting seat 10 the bottom of the cylindrical mounting seat 10 communicates with the inside of the guide sleeve 9, and the inside of the cylindrical mounting seat 10 is fixedly installed with an adjusting seat 14 through a rolling bearing 11, the adjustment A screw 7 is screwed into the center of the seat 14, and the bottom end of the screw 7 extends through the guide sleeve 9 between the two side walls of the gantry-type bracket 1, and the side of the screw 7
  • a limiting slot 8 is opened, and a limiting block 18 is movably engaged inside the limiting slot
  • the gantry-type bracket 1 When removing the nail from the patient's limb bone, the gantry-type bracket 1 can be placed across the patient's limb, and then the tail end of the nail on the patient's limb bone is snapped into the V-shaped slot 20, and then rotated by two The operating handle 15, the screw 7 will rise or fall under the cooperation of the limit block 18 and the limit groove 8, and then the nail on the bone of the patient's limb will be taken out. In this way, during the nail extraction process The nails will not deflect from side to side and back to front, which can ensure that the damage caused to the patient during the process of nail extraction is minimized, which is conducive to the rehabilitation of the patient.
  • the thread transmission method can effectively prevent the nail from being removed during the process of nail extraction
  • the rebound phenomenon can prevent secondary injury to the patient.
  • both ends of the bottom of the gantry-type bracket 1 are welded with support bases 2.
  • the support base 2 can increase the stability of the gantry-type bracket 1, can effectively prevent the gantry-type bracket 1 from falling down, and can avoid accidental injury to the patient caused by the gantry-type bracket 1 falling, thereby making the device safe and reliable.
  • a screw rod 16 is also screwed inside the screw rod 7, the bottom end of the screw rod 16 penetrates the bottom of the screw rod 7, and all The upper end of the screw rod 16 penetrates the upper part of the screw rod 7, and the upper end of the screw rod 16 is welded with a cross rod 17.
  • a rubber sleeve is sleeved on the outside of the cross bar 17 and the two operation handles 15.
  • the rubber sleeve can increase the static friction between the cross bar 17 and the two operating handles 15 and the operator's hand, thereby making the operation of the device more stable.
  • a round cover 12 is also movably fitted on the outside of the adjustment base 14, and the round cover 12 is fixedly installed in the first groove 5 by screws 13.
  • the round cover 12 not only prevents dust from falling on the rolling bearing 11, but also increases the overall aesthetics of the device.
  • the bottom wall of the first groove 5 is provided with a screw hole 6 matching the screw 13.
  • the orthopedic device uses a nail-pulling device to place the gantry-type bracket 1 across the patient's limb when removing the nail on the patient's limb bone, and then snap the tail end of the nail on the patient's limb bone into V
  • the nail will not deflect left and right during the process of nail extraction, which can ensure that the damage caused to the patient during the process of nail extraction is minimized, which is conducive to the rehabilitation of the patient.
  • the thread transmission method is adopted.
  • the first step is to first weld the two support bases 2 to the two ends of the bottom of the gantry type bracket 1;
  • the limit block 18, the guide sleeve 9 and the cylindrical mounting seat 10 are designed in one piece, and the limit block 18, the guide sleeve 9 and the cylindrical mounting seat 10 are fixedly installed in the second groove 3 and the through groove 4 internal;
  • the third step is to fix the adjusting base 14 through the rolling bearing 11 and install it inside the cylindrical mounting base 10, and then screw the screw rod 7 inside the adjusting base 14, and at the same time, the limiting block 18 is movably snapped into the limiting groove 8 internal;
  • the fourth step is to fix the round cover 12 to the inside of the first groove 5 by screws 13, and then symmetrically weld the two operating handles 15 on the outer side of the adjustment base 14 near the upper part of it;
  • the cross rod 17 is welded to the upper end of the threaded rod 16, and then the cross rod 17 is operated to screw the threaded rod 16 inside the screw rod 7, that is, the installation is completed.

Abstract

一种骨科用取钉装置，包括龙门型支架(1)，龙门型支架(1)的顶壁上表面居中开设有第一凹槽(5)，第一凹槽(5)的底部居中开设有第二凹槽(3)，第二凹槽(3)的底部开设有通槽(4)，通槽(4)的内部固定安装有导向套(9)，第二凹槽(3)的内部固定安装有圆柱型安装座(10)，圆柱型安装座(10)的底部与导向套(9)的内部相连通。在拔钉子的过程中钉子不会发生左右前后偏斜，可以保证在拔钉子的过程中给患者造成的伤害降至最低，有利于患者的康复，采用螺纹传动的方式，可有效防止在拔钉子的过程中钉子发生回弹的现象，可防止给患者造成二次伤害，安全可靠，可避免给患者造成意外的伤害。

Description

一种骨科用取钉装置 技术领域
本实用新型涉及医疗器械技术领域，具体为一种骨科用取钉装置。
背景技术
骨科是各大医院最常见的科室之一，主要研究骨骼肌肉系统的解剖、生理与病理，运用药物、手术及物理方法保持和发展这一系统的正常形态与功能。随着时代和社会的变更，骨科伤病谱有了明显的变化，例如，骨关节结核、骨髓炎、小儿麻痹症等疾病明显减少，交通事故引起的创伤明显增多。
在交通事故中，最常见的就是骨折，在骨折比较严重的情况下需要打入钉子进行内固定，在骨折康复后的一段时期内需要将钉子取出，然而现有的骨科用取钉装置，在拔钉子的过程中钉子经常会发生左右前后偏斜，不能保证在拔钉子的过程中给患者造成的伤害降至最低，不利于患者的康复，此外，现有的骨科用取钉装置，在拔钉子的过程中钉子易发生回弹的现象，安全性较差，给患者造成意外的伤害。
实用新型内容
本实用新型的目的在于提供一种骨科用取钉装置，在拔钉子的过程中钉子不会发生左右前后偏斜，可以保证在拔钉子的过程中给患者造成的伤害降至最低，有利于患者的康复，采用螺纹传动的方式，可有效防止在拔钉子的过程中钉子发生回弹的现象，可防止给患者造成二次伤害，安全可靠，可避免给患者造成意外的伤害，以解决上述背景技术中提出的问题。
为实现上述目的，本实用新型提供如下技术方案：一种骨科用取钉装置，包括龙门型支架，所述龙门型支架的顶壁上表面居中开设有第一凹槽，所述第一凹槽的底部居中开设有第二凹槽，所述第二凹槽的底部开设有通槽，所述通槽的内部固定安装有导向套，所述第二凹槽的内部固定安装有圆柱型安装座，所述圆柱型安装座的底部与所述导向套的内部相连通，且所述圆柱型安装座的内部通过滚动轴承固定安装有调节座，所述调节座的内部居中螺接有丝杆，所述丝杆的底端贯穿所述导向套延伸至所述龙门型支架的两侧壁之间，且所述丝杆的侧面上开设有一限位槽，所述限位槽的内部活动卡接有一限位块，所述限位块远离所述限位槽的一侧面与所述导向套的内壁固定连接，所述调节座的底部位于所述第一凹槽的内部，且所述调节座的上部位于所述龙门型支架的顶壁上方，所述调节座的外侧靠近其上部对称焊接有两个操作 手柄，所述丝杆的底端一体设有L型卡块，所述L型卡块的底壁上居中开设有V型卡槽。
通过采用上述技术方案，在对患者肢体骨头上的钉子取出时，可将龙门型支架横跨放置在患者的肢体上方，然后将患者肢体骨头上的钉子的尾端卡入V型卡槽的内部，然后旋转两个操作手柄，在限位块和限位槽的配合下丝杆将会上升或者下降，进而将患者肢体骨头上的钉子取出，通过采用此种方式，使得在拔钉子的过程中钉子不会发生左右前后偏斜，可以保证在拔钉子的过程中给患者造成的伤害降至最低，有利于患者的康复，此外，采用螺纹传动的方式，可有效防止在拔钉子的过程中钉子发生回弹的现象，可防止给患者造成二次伤害。
优选的，所述龙门型支架的底部两端部均焊接有支撑座。
通过采用上述技术方案，支撑座可增加龙门型支架的稳定性，可有效防止龙门型支架发生倾倒的现象，可避免因龙门型支架倾倒给患者带来意外的伤害，从而使得该装置安全可靠。
优选的，所述丝杆的内部还螺接有螺纹杆，所述螺纹杆的底端贯穿所述丝杆的底部，且所述螺纹杆的上端贯穿所述丝杆的上部，所述螺纹杆的上端还焊接有横杆。
通过采用上述技术方案，便于通过操作横杆转动螺纹杆，进而利用螺纹杆的底端压紧卡入V型卡槽内部的钉子的尾端，可有效防止卡入V型卡槽内部的钉子发生脱落的现象，可避免给患者造成意外的伤害。
优选的，所述横杆以及两个所述操作手柄的外部均套装有橡胶套。
通过采用上述技术方案，橡胶套可增加横杆以及两个操作手柄与操作人员手部之间的静摩擦力，从而使得该装置操作比较稳定。
优选的，所述调节座的外部还活动套装有圆盖，所述圆盖通过螺钉固定安装在所述第一凹槽的内部。
通过采用上述技术方案，圆盖不仅可防止滚动轴承上落尘，同时可增加该装置的整体美观性。
优选的，所述第一凹槽的底壁上开设有与所述螺钉相匹配的螺纹孔。
通过采用上述技术方案，使得圆盖便于通过螺钉安装在第一凹槽的内部。
与现有技术相比，本实用新型的有益效果是：
1、本实用新型，在拔钉子的过程中钉子不会发生左右前后偏斜，可以保 证在拔钉子的过程中给患者造成的伤害降至最低，有利于患者的康复；
2、本实用新型，采用螺纹传动的方式，可有效防止在拔钉子的过程中钉子发生回弹的现象，可防止给患者造成二次伤害；
3、本实用新型，支撑座可增加龙门型支架的稳定性，可有效防止龙门型支架发生倾倒的现象，可避免因龙门型支架倾倒给患者带来意外的伤害，从而使得该装置安全可靠；
4、本实用新型，便于通过操作横杆转动螺纹杆，进而利用螺纹杆的底端压紧卡入V型卡槽内部的钉子的尾端，可有效防止卡入V型卡槽内部的钉子发生脱落的现象，可避免给患者造成意外的伤害。
附图说明
图1为本实用新型一种实施方式的结构示意图；
图2为本实用新型一种实施方式的爆炸结构示意图；
图3为本实用新型一种实施方式的局部爆炸结构示意图；
图4为本实用新型一种实施方式的龙门型支架与支撑座的组装示意图；
图5为本实用新型一种实施方式的圆柱型安装座与导向套以及限位块的组装示意图；
图6为本实用新型一种实施方式的不同视角的结构示意图之一；
图7为图6中A处的放大结构示意图；
图8为本实用新型一种实施方式的局部结构示意图；
图9为图8中B处的放大结构示意图。
图中：1、龙门型支架；2、支撑座；3、第二凹槽；4、通槽；5、第一凹槽；6、螺纹孔；7、丝杆；8、限位槽；9、导向套；10、圆柱型安装座；11、滚动轴承；12、圆盖；13、螺钉；14、调节座；15、操作手柄；16、螺纹杆；17、横杆；18、限位块；19、L型卡块；20、V型卡槽。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型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实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，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，都属于本实用新型保护的范围。
请参阅图1-9，本实用新型提供一种技术方案：
一种骨科用取钉装置，如图1-9所示，包括龙门型支架1，所述龙门型支架1的顶壁上表面居中开设有第一凹槽5，所述第一凹槽5的底部居中开设有第二凹槽3，所述第二凹槽3的底部开设有通槽4，所述通槽4的内部固定安装有导向套9，所述第二凹槽3的内部固定安装有圆柱型安装座10，所述圆柱型安装座10的底部与所述导向套9的内部相连通，且所述圆柱型安装座10的内部通过滚动轴承11固定安装有调节座14，所述调节座14的内部居中螺接有丝杆7，所述丝杆7的底端贯穿所述导向套9延伸至所述龙门型支架1的两侧壁之间，且所述丝杆7的侧面上开设有一限位槽8，所述限位槽8的内部活动卡接有一限位块18，所述限位块18远离所述限位槽8的一侧面与所述导向套9的内壁固定连接，所述调节座14的底部位于所述第一凹槽5的内部，且所述调节座14的上部位于所述龙门型支架1的顶壁上方，所述调节座14的外侧靠近其上部对称焊接有两个操作手柄15，所述丝杆7的底端一体设有L型卡块19，所述L型卡块19的底壁上居中开设有V型卡槽20。
在对患者肢体骨头上的钉子取出时，可将龙门型支架1横跨放置在患者的肢体上方，然后将患者肢体骨头上的钉子的尾端卡入V型卡槽20的内部，然后旋转两个操作手柄15，在限位块18和限位槽8的配合下丝杆7将会上升或者下降，进而将患者肢体骨头上的钉子取出，通过采用此种方式，使得在拔钉子的过程中钉子不会发生左右前后偏斜，可以保证在拔钉子的过程中给患者造成的伤害降至最低，有利于患者的康复，此外，采用螺纹传动的方式，可有效防止在拔钉子的过程中钉子发生回弹的现象，可防止给患者造成二次伤害。
具体的，如图1、2、4和6所示，所述龙门型支架1的底部两端部均焊接有支撑座2。
支撑座2可增加龙门型支架1的稳定性，可有效防止龙门型支架1发生倾倒的现象，可避免因龙门型支架1倾倒给患者带来意外的伤害，从而使得该装置安全可靠。
具体的，如图1、2、3、6和8所示所述丝杆7的内部还螺接有螺纹杆16，所述螺纹杆16的底端贯穿所述丝杆7的底部，且所述螺纹杆16的上端贯穿所述丝杆7的上部，所述螺纹杆16的上端还焊接有横杆17。
便于通过操作横杆17转动螺纹杆16，进而利用螺纹杆16的底端压紧卡入V型卡槽20内部的钉子的尾端，可有效防止卡入V型卡槽20内部的钉子 发生脱落的现象，可避免给患者造成意外的伤害。
具体的，所述横杆17以及两个所述操作手柄15的外部均套装有橡胶套。
橡胶套可增加横杆17以及两个操作手柄15与操作人员手部之间的静摩擦力，从而使得该装置操作比较稳定。
具体的，如图1、2、3和8所示所述调节座14的外部还活动套装有圆盖12，所述圆盖12通过螺钉13固定安装在所述第一凹槽5的内部。
圆盖12不仅可防止滚动轴承11上落尘，同时可增加该装置的整体美观性。
具体的，如图2和4所示所述第一凹槽5的底壁上开设有与所述螺钉13相匹配的螺纹孔6。
使得圆盖12便于通过螺钉13安装在第一凹槽5的内部
工作原理：该骨科用取钉装置，在对患者肢体骨头上的钉子取出时，可将龙门型支架1横跨放置在患者的肢体上方，然后将患者肢体骨头上的钉子的尾端卡入V型卡槽20的内部，然后旋转两个操作手柄15，在限位块18和限位槽8的配合下丝杆7将会上升或者下降，进而将患者肢体骨头上的钉子取出，通过采用此种方式，使得在拔钉子的过程中钉子不会发生左右前后偏斜，可以保证在拔钉子的过程中给患者造成的伤害降至最低，有利于患者的康复，此外，采用螺纹传动的方式，可有效防止在拔钉子的过程中钉子发生回弹的现象，可防止给患者造成二次伤害；通过操作横杆17转动螺纹杆16，进而利用螺纹杆16的底端压紧卡入V型卡槽20内部的钉子的尾端，可有效防止卡入V型卡槽20内部的钉子发生脱落的现象，可避免给患者造成意外的伤害。
使用方法：使用时，将龙门型支架1横跨放置在患者的肢体上方，将患者肢体骨头上的钉子的尾端卡入V型卡槽20的内部，操作横杆17转动螺纹杆16，进而利用螺纹杆16的底端压紧卡入V型卡槽20内部的钉子的尾端，旋转两个操作手柄15，即可将钉子拔出。
安装方法：
第一步、首先将两个支撑座2焊接在龙门型支架1的底部两端部；
第二步、限位块18和导向套9以及圆柱型安装座10采用一体成型设计，将限位块18和导向套9以及圆柱型安装座10固定安装在第二凹槽3以及通槽4的内部；
第三步、将调节座14通过滚动轴承11固定安装在圆柱型安装座10的内部，然后将丝杆7螺接在调节座14的内部，同时将限位块18活动卡接在限位槽8的内部；
第四步、将圆盖12通过螺钉13固定安装在第一凹槽5的内部，然后将两个操作手柄15对称焊接在调节座14的外侧靠近其上部的位置处；
第五步，将横杆17焊接在螺纹杆16的上端，然后操作横杆17将螺纹杆16螺接在丝杆7的内部，即安装完毕。
尽管已经示出和描述了本实用新型的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本实用新型的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本实用新型的范围由所附权利要求及其等同物限定。

Claims (6)

  1. 一种骨科用取钉装置，包括龙门型支架(1)，其特征在于：所述龙门型支架(1)的顶壁上表面居中开设有第一凹槽(5)，所述第一凹槽(5)的底部居中开设有第二凹槽(3)，所述第二凹槽(3)的底部开设有通槽(4)，所述通槽(4)的内部固定安装有导向套(9)，所述第二凹槽(3)的内部固定安装有圆柱型安装座(10)，所述圆柱型安装座(10)的底部与所述导向套(9)的内部相连通，且所述圆柱型安装座(10)的内部通过滚动轴承(11)固定安装有调节座(14)，所述调节座(14)的内部居中螺接有丝杆(7)，所述丝杆(7)的底端贯穿所述导向套(9)延伸至所述龙门型支架(1)的两侧壁之间，且所述丝杆(7)的侧面上开设有一限位槽(8)，所述限位槽(8的内部活动卡接有一限位块(18)，所述限位块(18)远离所述限位槽(8)的一侧面与所述导向套(9)的内壁固定连接，所述调节座(14)的底部位于所述第一凹槽(5)的内部，且所述调节座(14)的上部位于所述龙门型支架(1)的顶壁上方，所述调节座(14)的外侧靠近其上部对称焊接有两个操作手柄(15)，所述丝杆(7)的底端一体设有L型卡块(19)，所述L型卡块(19)的底壁上居中开设有V型卡槽(20)。
  2. 根据权利要求1所述的一种骨科用取钉装置，其特征在于：所述龙门型支架(1)的底部两端部均焊接有支撑座(2)。
  3. 根据权利要求1所述的一种骨科用取钉装置，其特征在于：所述丝杆(7)的内部还螺接有螺纹杆(16)，所述螺纹杆(16)的底端贯穿所述丝杆(7)的底部，且所述螺纹杆(16)的上端贯穿所述丝杆(7)的上部，所述螺纹杆(16)的上端还焊接有横杆(17)。
  4. 根据权利要求3所述的一种骨科用取钉装置，其特征在于：所述横杆(17)以及两个所述操作手柄(15)的外部均套装有橡胶套。
  5. 根据权利要求1所述的一种骨科用取钉装置，其特征在于：所述调节座(14)的外部还活动套装有圆盖(12)，所述圆盖(12)通过螺钉(13)固定安装在所述第一凹槽(5)的内部。
  6. 根据权利要求5所述的一种骨科用取钉装置，其特征在于：所述第一凹槽(5)的底壁上开设有与所述螺钉(13)相匹配的螺纹孔(6)。
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