WO2020048088A1 - 一种螺钉打入装置 - Google Patents

一种螺钉打入装置 Download PDF

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Publication number
WO2020048088A1
WO2020048088A1 PCT/CN2019/073674 CN2019073674W WO2020048088A1 WO 2020048088 A1 WO2020048088 A1 WO 2020048088A1 CN 2019073674 W CN2019073674 W CN 2019073674W WO 2020048088 A1 WO2020048088 A1 WO 2020048088A1
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WIPO (PCT)
Prior art keywords
screw
sleeve
cavity
long rod
slot
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PCT/CN2019/073674
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English (en)
French (fr)
Inventor
黄孝敏
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上海锐植医疗器械有限公司
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Application filed by 上海锐植医疗器械有限公司 filed Critical 上海锐植医疗器械有限公司
Priority to US16/626,882 priority Critical patent/US11045243B2/en
Priority to EP19857280.2A priority patent/EP3705071B1/en
Publication of WO2020048088A1 publication Critical patent/WO2020048088A1/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
    • A61B17/8875—Screwdrivers, spanners or wrenches
    • A61B17/8886—Screwdrivers, spanners or wrenches holding the screw head
    • 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
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A61B17/7076—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
    • A61B17/7082—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for driving, i.e. rotating, screws or screw parts specially adapted for spinal fixation, e.g. for driving polyaxial or tulip-headed screws
    • 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
    • A61B17/8875—Screwdrivers, spanners or wrenches
    • A61B17/8886—Screwdrivers, spanners or wrenches holding the screw head
    • A61B17/8891—Screwdrivers, spanners or wrenches holding the screw head at its periphery
    • 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
    • A61B2017/922—Devices for impaction, impact element

Definitions

  • the invention relates to the field of medical instruments, and in particular to a screw driving device.
  • the spine needs to be fixed to facilitate the stretching and separation of the spinal joints.
  • Ordinary screws that are inserted into the spine are often connected to the handle by screw fastening or clamping.
  • the handle is directly disassembled, and the rotary disassembly delays time during the operation, which is not conducive to the operation.
  • the clamped screws and grips do not ensure tightening when the screws are driven into the spine.
  • the purpose of the present invention is to provide a screw driving device, which is convenient for disassembly and prevents the screw from rotating or shifting when it is screwed into the spine.
  • the present invention provides a screw driving device, which includes a grip, a handle rod, a sleeve, and a screw, wherein:
  • the sleeve has a hollow cavity therethrough, and a third clamping groove and a fourth clamping groove are respectively provided on the inner sides of the two ends of the cavity; a notch penetrating through the cavity is provided on a side wall of the sleeve, A limiting clip is disposed in the slot parallel to the surface of the side wall, one end of the limiting clip is connected to the side wall of the slot, and the other end is provided with a convex card facing the cavity. side;
  • the screw member has a cylindrical long rod, a screw head is provided at one end of the long rod, a first clamping portion is provided at a junction between the long rod and the screw head, and a side wall of the long rod is provided. There are ring grooves on it;
  • One end of the handle lever is sleeved with the grip, and the other end is inserted into the third slot of the sleeve, and an end of the handle lever which is in contact with the sleeve is provided with an axial A socket, wherein the socket is in communication with the cavity of the sleeve; the long rod penetrates the cavity and is inserted into the socket; the fourth card slot is connected to the first card; And the convex card edge is embedded in the annular groove edge.
  • a first card slot and a second card slot are respectively provided on the side walls of the two ends of the handle lever, and the handle lever is sleeved through the first card slot.
  • a second card portion matching with the second card slot is provided in the third card slot.
  • the diameters of the third and fourth clamping grooves are larger than the diameter of the cavity.
  • the first clamping portion is a polygonal prism.
  • an end of the first clamping portion that is in contact with the screw head is provided with a raised annular abutting edge, and the annular abutting edge abuts against the screw.
  • the end surface of the sleeve has a diameter of the annular abutting edge larger than a diameter of the fourth clamping groove.
  • a plurality of grooves are provided on a side wall of the long rod.
  • a diameter of one end of the grip connected with the handle rod is smaller than a diameter of the other end, and the grip is provided with a plurality of slot holes.
  • the beneficial effects of the present invention are mainly reflected in the use of multiple card slot structures to ensure a strong connection relationship, the long rod of the screw member penetrates into the handle rod member, and the connection between the handle rod member and the screw member is strengthened.
  • the sleeve and the screw are axially fixed and fixed by a limiting clip, which is convenient for disassembly.
  • FIG. 1 is a schematic structural diagram of a screw driving device according to the present invention.
  • FIG. 2 is a schematic structural diagram of a handle lever in the present invention
  • FIG. 3 is a schematic view of a sleeve structure in the present invention.
  • FIG. 4 is a schematic cross-sectional structure diagram of FIG. 3;
  • FIG. 5 is a schematic structural diagram of a screw member in the present invention.
  • first and second are used for descriptive purposes only, they should not be interpreted as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "at least” is one or more unless specifically stated otherwise. The limit.
  • the terms “assembly”, “connected”, and “connected” should be understood in a broad sense. For example, they may be fixed connections, detachable connections, or integrated Ground connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, and the two components can communicate with each other internally.
  • the specific meanings of the above terms in the present utility model can be understood according to specific situations.
  • the "first" or “down” of the second feature may include direct contact between the first and second features, or may include the first feature and the second feature not directly The contact is made through another characteristic between them.
  • the first feature is “above”, “below”, and “above” the second feature, including the fact that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature is higher in level than the second feature. the height of.
  • the first feature is "above”, “below”, and “below” the second feature, including the fact that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower level than the second feature.
  • the present invention provides a screw driving device, which includes a grip, a handle rod, a sleeve, and a screw.
  • the sleeve has a hollow cavity therethrough, and a third clamping slot and a fourth clamping slot are respectively provided on the inner sides of the two ends of the cavity; a slot through the cavity is provided on the side wall of the sleeve;
  • the limiting clip is parallel to the surface of the side wall. One end of the limiting clip is connected to the side wall of the slot, and the other end is provided with a convex clamping edge facing the cavity.
  • the diameters of the third and fourth clamping grooves are larger than the diameter of the cavity.
  • the screw has a cylindrical long rod.
  • One end of the long rod is provided with a screw head.
  • a first clamping portion is provided at the junction of the long rod and the screw head.
  • the side wall of the long rod is provided with an annular groove.
  • a protruding annular abutting edge is provided at an end of the clamping portion that is in contact with the screw head, and the annular abutting edge abuts against the end face of the sleeve.
  • the first and second clamping grooves are respectively provided on the side walls of the two ends of the handle lever.
  • the handle lever is sleeved with the grip through the first clamping groove, and the other end is inserted into the third clamping groove of the sleeve.
  • the third card slot is provided with a second card portion matching and engaging with the second card slot.
  • the first card slot and the second card slot are each composed of a plurality of grooves, which can ensure that the lever member and the sleeve and the grip The connection relationship is firm, and it can rotate in the axial direction simultaneously without loosening due to the force in the direction of rotation.
  • An axial insertion hole is provided at one end of the handle rod and the sleeve, and the insertion hole communicates with the cavity of the sleeve.
  • a long rod penetrates the cavity and is inserted into the insertion hole.
  • the clamping part is engaged, and the first clamping part is a polygonal prism, which ensures that the screw member is synchronously rotated when the sleeve rotates.
  • the screw is inserted into the cavity of the sleeve, and the side wall of the long rod squeezes the convex card edge outward until the convex card edge is embedded in the annular groove edge, so that the long rod cannot be easily moved.
  • the card is connected firmly.
  • the diameter of one end of the grip connected to the handle bar is smaller than the diameter of the other end, and the grip is provided with a plurality of slotted holes, which is convenient for gripping or engaging with the machine.
  • the proposed screw driving device utilizes a plurality of card slot structures to ensure a strong connection relationship.
  • the long rod of the screw member penetrates into the handle rod member, and strengthens the connection between the handle rod member and the screw member.
  • the sleeve and the screw are axially fixed and fixed by a limiting clip, which is convenient for disassembly.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgical Instruments (AREA)
  • Clamps And Clips (AREA)
  • Prostheses (AREA)

Abstract

一种螺钉打入装置，包括握把（11）、手柄杆件（2）、套筒（3）和螺钉件，套筒（3）具有贯穿的空腔（31），空腔（31）两端均设有卡槽（32，33）；套筒（3）侧壁上设有贯通空腔（31）的槽口（34），槽口（34）内设有限位卡件（35），限位卡件（35）一端与槽口（34）相接，另一端设有凸卡边（36）；螺钉件具有长杆（41），长杆（41）一端设有螺钉钉头（46），长杆（41）与螺钉钉头（46）相接处设有第一卡部（44），长杆（41）的侧壁上设有环状槽边（43）；手柄杆件（2）一端套设握把（11），另一端插卡在套筒（3）的第三卡槽（32）内，手柄杆件（2）设有轴向的插孔（23），长杆（41）贯穿空腔（31），并插嵌在插孔（23）内，第四卡槽（33）与第一卡部（44）卡接，凸卡边（36）嵌卡在环状槽边（43）内。该螺钉打入装置利用卡槽结构确保连接关系牢固，螺钉件长杆（41）深入手柄杆件（2）内，加强手柄杆件（2）与螺钉件间连接处的强度，通过限位卡件（35）将套筒（3）与螺钉件轴向限位固定，拆卸方便。

Description

一种螺钉打入装置 技术领域
本发明涉及医疗器械领域，尤其涉及一种螺钉打入装置。
背景技术
脊柱手术开始时，需对脊柱进行固定，以方便对脊柱关节的拉伸分离，普通的钉入脊柱的螺钉常通过螺旋紧固或卡固与握柄处连接，其中螺旋紧固的螺钉不能与握柄直接拆卸，旋动拆卸在手术时耽误时间，不利于手术的进行。而卡固的螺钉与握柄不能确保在将螺钉打入脊柱时的旋紧。
发明内容
本发明的目的是为了提供一种螺钉打入装置，方便拆卸，避免螺钉旋入脊柱时转动或偏移。
为了实现上述目的，本发明提出一种螺钉打入装置，包括握把、手柄杆件、套筒和螺钉件，其中：
所述套筒具有贯穿的空腔，所述空腔的两端内侧分别设有第三卡槽和第四卡槽；所述套筒的侧壁上设有贯通所述空腔的槽口，所述槽口内设有一与侧壁表面平行的限位卡件，所述限位卡件的一端与所述槽口的侧壁相接，另一端设有正对所述空腔的凸卡边；
所述螺钉件具有圆柱状的长杆，所述长杆的一端设有螺钉钉头，所述长杆与所述螺钉钉头相接处设有第一卡部，所述长杆的侧壁上设有环状槽边；
所述手柄杆件一端套设所述握把，另一端插卡在所述套筒的所述第三卡槽内，所述手柄杆件与所述套筒相接的一端设有轴向的插孔，所述插孔与所述套 筒的空腔通连；所述长杆贯穿所述空腔，并插嵌在所述插孔内，所述第四卡槽与所述第一卡部卡接，所述凸卡边嵌卡在所述环状槽边内。
进一步地，在所述的螺钉打入装置中，所述手柄杆件两端的侧壁上分别设有第一卡槽和第二卡槽，所述手柄杆件通过所述第一卡槽套设所述握把，所述第三卡槽内设有与所述第二卡槽匹配卡合的第二卡部。
进一步地，在所述的螺钉打入装置中，所述第三卡槽与第四卡槽的直径均大于所述空腔的直径。
进一步地，在所述的螺钉打入装置中，所述第一卡部为多边形棱柱。
进一步地，在所述的螺钉打入装置中，所述第一卡部与所述螺钉钉头相接的一端设有凸起的环状抵边，所述环状抵边抵卡在所述套筒的端面，所述环状抵边的直径大于所述第四卡槽的直径。
进一步地，在所述的螺钉打入装置中，所述长杆的侧壁上设有若干槽纹。
进一步地，在所述的螺钉打入装置中，所述握把与所述手柄杆件相接的一端直径小于另一端直径，所述握把上设有多个槽孔。
与现有技术相比，本发明的有益效果主要体现在：利用多个的卡槽结构确保连接关系牢固，螺钉件长杆深入到手柄杆件内，加强手柄杆件与螺钉件之间连接处的强度，同时通过限位卡件将套筒与螺钉件轴向限位固定，拆卸方便。
附图说明
图1为本发明中螺钉打入装置的结构示意图；
图2为本发明中手柄杆件的结构示意图；
图3为本发明中套筒结构示意图；
图4为图3的剖面结构示意图；
图5为本发明中螺钉件的结构示意图。
其中：握把11、槽孔12、手柄杆件2、第一卡槽21、第二卡槽22、插孔23、套筒3、空腔31、第三卡槽32、第四卡槽33、槽口34、限位卡件35、凸卡边36、长杆41、槽纹42、环状槽边43、第一卡部44、环状抵边45、螺钉钉头46。
具体实施方式
下面将结合示意图对本发明的螺钉打入装置进行更详细的描述，其中表示了本发明的优选实施例，应该理解本领域技术人员可以修改在此描述的本发明，而仍然实现本发明的有利效果。因此，下列描述应当被理解为对于本领域技术人员的广泛知道，而并不作为对本发明的限制。
为了清楚，不描述实际实施例的全部特征。在下列描述中，不详细描述公知的功能和结构，因为它们会使本发明由于不必要的细节而混乱。应当认为在任何实际实施例的开发中，必须做出大量实施细节以实现开发者的特定目标，例如按照有关系统或有关商业的限制，由一个实施例改变为另一个实施例。另外，应当认为这种开发工作可能是复杂和耗费时间的，但是对于本领域技术人员来说仅仅是常规工作。
在本发明的描述中，需要说明的是，对于方位词，如有术语“中心”，“横向”、“纵向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示方位和位置关系为基于附图所示的方位或位置关系，仅是为了便于叙述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定方位构造和操作，不能理解为限制本实用新型的具体保护范围。
此外，如有术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或隐含指明技术特征的数量。由此，限定有“第一”、“第二”特征可以明示或者隐含包括一个或者多个该特征，在本发明描述中，“至少”的含义是一个或一个以上，除非另有明确具体的限定。
在本发明中，除另有明确规定和限定，如有术语“组装”、“相连”、“连接”术语应作广义去理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；也可以是机械连接；可以是直接相连，也可以是通过中间媒介相连，可以是两个元件内部相连通。对于本领域普通技术人员而言，可以根据具体情况理解上述的术语在本实用新型中的具体含义。
在发明中，除非另有规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一特征和第二特征不是直接接触而是通过它们之间的另外特征接触。而且，第一特征在第二特征“之上”、“之下”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅是表示第一特征水平高度高于第二特征的高度。第一特征在第二特征“之上”、“之下”和“下面”包括第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度低于第二特征。
在下列段落中参照附图以举例方式更具体地描述本发明。根据下面说明，本发明的优点和特征将更清楚。需说明的是，附图均采用非常简化的形式且均使用非精准的比例，仅用以方便、明晰地辅助说明本发明实施例的目的。
如图1所示，本发明提出一种螺钉打入装置，包括握把、手柄杆件、套筒和螺钉件。
具体地，套筒具有贯穿的空腔，空腔的两端内侧分别设有第三卡槽和第四卡槽；套筒的侧壁上设有贯通空腔的槽口，槽口内设有一与侧壁表面平行的限 位卡件，限位卡件的一端与槽口的侧壁相接，另一端设有正对空腔的凸卡边。第三卡槽与第四卡槽的直径均大于空腔的直径。
螺钉件具有圆柱状的长杆，长杆的一端设有螺钉钉头，长杆与螺钉钉头相接处设有第一卡部，长杆的侧壁上设有环状槽边；第一卡部与螺钉钉头相接的一端设有凸起的环状抵边，环状抵边抵卡在套筒的端面，环状抵边的直径大于第四卡槽的直径。长杆的侧壁上设有若干槽纹，加强了长杆的强度，避免其轻易折弯。
其中，手柄杆件两端的侧壁上分别设有第一卡槽和第二卡槽，手柄杆件通过第一卡槽套设握把，另一端插卡在套筒的第三卡槽内，第三卡槽内设有与第二卡槽匹配卡合的第二卡部，第一卡槽和第二卡槽均由多个凹槽组成，能确保手柄杆件与套筒和握把的连接关系牢固，能同步轴向转动，不回因旋转方向的力而松脱。手柄杆件与套筒相接的一端设有轴向的插孔，插孔与套筒的空腔通连；长杆贯穿空腔，并插嵌在插孔内，第四卡槽与第一卡部卡接，第一卡部为多边形棱柱，确保套筒转动时带动螺钉件同步转动。螺钉件插入套筒的空腔内，长杆的侧壁将凸卡边向外挤压，直至凸卡边嵌卡在环状槽边内，使长杆不能轻易移动，将套筒与螺钉件卡接固连。
此外，握把与手柄杆件相接的一端直径小于另一端直径，握把上设有多个槽孔，方便握持或与机械卡接。
综上，在本实施例中，提出的螺钉打入装置，利用多个的卡槽结构确保连接关系牢固，螺钉件长杆深入到手柄杆件内，加强手柄杆件与螺钉件之间连接处的强度，同时通过限位卡件将套筒与螺钉件轴向限位固定，拆卸方便。
上述仅为本发明的优选实施例而已，并不对本发明起到任何限制作用。任何所属技术领域的技术人员，在不脱离本发明的技术方案的范围内，对本发明 揭露的技术方案和技术内容做任何形式的等同替换或修改等变动，均属未脱离本发明的技术方案的内容，仍属于本发明的保护范围之内。

Claims (7)

  1. 一种螺钉打入装置，其特征在于，包括握把、手柄杆件、套筒和螺钉件，其中：
    所述套筒具有贯穿的空腔，所述空腔的两端内侧分别设有第三卡槽和第四卡槽；所述套筒的侧壁上设有贯通所述空腔的槽口，所述槽口内设有一与侧壁表面平行的限位卡件，所述限位卡件的一端与所述槽口的侧壁相接，另一端设有正对所述空腔的凸卡边；
    所述螺钉件具有圆柱状的长杆，所述长杆的一端设有螺钉钉头，所述长杆与所述螺钉钉头相接处设有第一卡部，所述长杆的侧壁上设有环状槽边；
    所述手柄杆件一端套设所述握把，另一端插卡在所述套筒的所述第三卡槽内，所述手柄杆件与所述套筒相接的一端设有轴向的插孔，所述插孔与所述套筒的空腔通连；所述长杆贯穿所述空腔，并插嵌在所述插孔内，所述第四卡槽与所述第一卡部卡接，所述凸卡边嵌卡在所述环状槽边内。
  2. 根据权利要求1所述的螺钉打入装置，其特征在于，所述手柄杆件两端的侧壁上分别设有第一卡槽和第二卡槽，所述手柄杆件通过所述第一卡槽套设所述握把，所述第三卡槽内设有与所述第二卡槽匹配卡合的第二卡部。
  3. 根据权利要求1所述的螺钉打入装置，其特征在于，所述第三卡槽与第四卡槽的直径均大于所述空腔的直径。
  4. 根据权利要求1所述的螺钉打入装置，其特征在于，所述第一卡部为多边形棱柱。
  5. 根据权利要求1所述的螺钉打入装置，其特征在于，所述第一卡部与所述螺钉钉头相接的一端设有凸起的环状抵边，所述环状抵边抵卡在所述套筒的端面，所述环状抵边的直径大于所述第四卡槽的直径。
  6. 根据权利要求1所述的螺钉打入装置，其特征在于，所述长杆的侧壁上 设有若干槽纹。
  7. 根据权利要求1所述的螺钉打入装置，其特征在于，所述握把与所述手柄杆件相接的一端直径小于另一端直径，所述握把上设有多个槽孔。
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