WO2019134365A1 - 一种双用钳 - Google Patents

一种双用钳 Download PDF

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Publication number
WO2019134365A1
WO2019134365A1 PCT/CN2018/100315 CN2018100315W WO2019134365A1 WO 2019134365 A1 WO2019134365 A1 WO 2019134365A1 CN 2018100315 W CN2018100315 W CN 2018100315W WO 2019134365 A1 WO2019134365 A1 WO 2019134365A1
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WO
WIPO (PCT)
Prior art keywords
function
function portion
caliper body
pressurizing
pressing
Prior art date
Application number
PCT/CN2018/100315
Other languages
English (en)
French (fr)
Inventor
罗卓荆
黄孝敏
Original Assignee
上海锐植医疗器械有限公司
中国人民解放军第四军医大学
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 上海锐植医疗器械有限公司, 中国人民解放军第四军医大学 filed Critical 上海锐植医疗器械有限公司
Priority to US16/628,010 priority Critical patent/US11090074B2/en
Priority to EP18898665.7A priority patent/EP3735924B1/en
Publication of WO2019134365A1 publication Critical patent/WO2019134365A1/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
    • A61B17/28—Surgical forceps
    • A61B17/2812—Surgical forceps with a single pivotal connection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/2812—Surgical forceps with a single pivotal connection
    • A61B17/2816—Pivots
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/2804—Surgical forceps with two or more pivotal connections
    • 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
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00353—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery one mechanical instrument performing multiple functions, e.g. cutting and grasping
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/025—Joint distractors
    • A61B2017/0256—Joint distractors for the spine
    • 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
    • A61B2017/564—Methods for bone or joint treatment
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0813—Accessories designed for easy sterilising, i.e. re-usable

Definitions

  • the invention relates to the technical field of orthopedic medical device tools, in particular to a dual-purpose forceps.
  • the problem to be solved by the present invention is to provide a dual-purpose pliers which is simple in structure, can be easily and quickly switched between the functions of distraction and pressurization.
  • the present invention relates to a dual-purpose pliers comprising: a first caliper body including a first hand-held portion, a first pressing function portion, and a first distracting function portion, a first pressing portion and a first expanding connecting portion are respectively disposed on the first pressing portion and the first expanding function portion transition region; and further includes a second caliper body, the second tong body includes a second hand-held portion and a second pressurizing function portion and a second distracting function portion respectively corresponding to the first pressurizing function portion and the first distracting function portion, the second hand-held portion and the second pressurizing function
  • the transition region of the portion and the second distracting function portion is respectively provided with a second pressurizing connection portion and a second distracting connecting portion.
  • the second pressurization connection portion and the second expansion connection portion are respectively disposed corresponding to the first pressure connection portion and the first expansion connection portion.
  • the dual-purpose plier provided by the invention has a simple structure, and in the actual operation process, the decoupling operation of the press-connecting portion and the distracting connecting portion respectively can be conveniently and quickly made free between the opening and pressing functions. Switch.
  • the first pressing function portion on the first caliper body is disposed in an arc shape
  • the first splaying function portion is disposed in an approximately linear shape
  • the second pressing function portion and the second opening function are provided.
  • the outer shape of the functional portion is symmetrically disposed with the outer shape of the first pressurizing function portion and the first distracting function portion.
  • the appropriate end profile allows for more efficient and quick control of the round bar.
  • first pressurizing connection portion and the second pressurizing connection portion and the first distracting connecting portion and the second distracting connecting portion are each connected by a hinge shaft.
  • the structure of the connecting body of the connecting body through the hinged shaft is simple, and the disassembly and assembly process is convenient and quick.
  • the outer edge of the head of the hinge shaft is disposed to be non-circular, and at least one of the two corresponding hinge holes connected by any hinge shaft has an outer edge disposed to be the outer edge of the head of the hinge shaft A non-circular shape that matches.
  • the outer edge of the head of the hinge shaft and the corresponding at least one hinge hole have a non-circular design and the two match.
  • the design makes the hinge shaft can be easily and quickly disengaged from the corresponding hinge hole during the function conversion of the pliers, and the hinge shaft is not easy to be ejected from the hinge hole during use and after disengagement.
  • the non-circular shape is preferably a diamond shape.
  • the inner wall of the hinge hole is provided with a wear layer.
  • the wear layer provided on the inner wall of the hinge hole effectively reduces the wear of the inner wall of the hinge hole, and ensures the service life and accuracy of the pliers.
  • the first pressurizing function portion and the first distracting function portion are respectively provided with a card slot perpendicular to the working surface of the functional portion, and the second pressurizing function portion and the second distracting function are provided.
  • a card slot corresponding to the same is also provided on the department.
  • the card slot is provided in a U shape.
  • the upper and lower corresponding card slots are arranged at the ends of the two tong body function portions, so that the control of the round bars by the pliers is more convenient and precise.
  • the first hand portion and the second hand portion are provided with a relief groove or a relief hole.
  • the mitigation groove or the mitigation hole provided on the hand-held portion of the tongs greatly reduces the weight of the operator and reduces the physical load and fatigue of the operator.
  • the first caliper body and the second caliper body are both medical ixef 1022 plastic.
  • Figure 1 is a schematic perspective view of the present invention.
  • Figure 2 is a schematic view showing the structure of the pressurized state of the present invention.
  • Figure 3 is a schematic view showing the structure of the expanded state of the present invention.
  • Figure 4 is a schematic view showing the structure of the hinge shaft of the present invention.
  • a schematic view of the three-dimensional structure of the dual-purpose forceps of the present invention is shown in Fig. 1.
  • the dual purpose pliers comprise two caliper bodies that are connected to each other and are freely movable by means of an articulated shaft 3, namely a first caliper body 1 and a second caliper body 2, respectively.
  • an articulated shaft 3 namely a first caliper body 1 and a second caliper body 2, respectively.
  • any other suitable form of connection can be used.
  • Both the first caliper body 1 and the second caliper body 2 are made of ixef 1022 plastic.
  • the damper body 1 and 2 can be provided with a mitigation groove or a mitigation hole, so that the weight of the tongs 1 and 2 can be greatly reduced, thereby reducing the physical load and fatigue of the operator.
  • a hinge hole is formed in each of the first pressure connection portion 14 and the first expansion connection portion 15 of the first caliper body 1 , and corresponding to the second pressure connection portion of the second caliper body 2 24 and the second expansion connecting portion 25 are respectively provided with hinge holes; the hinge holes on the first caliper body 1 and the hinge holes on the second tong body 2 are respectively in one-to-one correspondence, and the two clamping pieces are used by the hinge shaft 3 1, 2 perform the decoupling operation.
  • the outer edge of the head of the hinge shaft 3 is arranged to be non-circular, and at least one of the two corresponding hinge holes connected by the hinge shaft 3 is provided with a non-circular shape whose outer edge is matched with the outer edge of the head of the hinge shaft 3, A diamond shape is preferred, and any other suitable shape may of course be used.
  • the outer edge of the head of the hinge shaft 3 and the corresponding hinge hole are matched with a certain reasonable gap. Such a design enables the hinge shaft 3 to be inserted or separated conveniently and quickly with the corresponding hinge hole during the function conversion of the forceps, so that the forceps can be freely switched between the opening and pressing functions, and the hinge shaft 3 is in use.
  • a wear layer may be disposed on the inner wall thereof.
  • the first pressing function portion 12 on the first caliper body 1 is shaped in an arc shape, and the first opening function portion 13 is disposed in an approximately linear shape, and the second pressing function portion 22 is provided.
  • the outer shape of the second distracting function portion 23 and the first pressing function portion 12 and the first distracting function portion 13 are symmetrically arranged to facilitate pressurization and distraction control of the round bar.
  • the shape of the functional portion on the first caliper body 1 and the second caliper body 2 can also be set to any other shape that satisfies the function of its use.
  • Each of the first pressurizing function portion 12 and the first distracting function portion 13 is provided with a U-shaped card slot perpendicular to the working surface of the functional portion, and the second pressurizing function portion 22 and the second distracting function portion 23 are provided.
  • the upper side is also provided with a U-shaped card slot corresponding thereto.
  • the specific design form of the U-shaped card slot can also be determined according to the shape of the round bar, and can be any other suitable form.
  • the opening size of the U-shaped card slot can be determined according to the outer diameter of the specific round bar; in order to avoid the wear of the round bar to the U-shaped card slot, a wear layer can be coated on the U-shaped card slot wall.
  • Figure 2 is a schematic view showing the structure of the pressurized state of the present invention.
  • first pressurizing connecting portion 14 on the first caliper body 1 and the second pressurizing connecting portion 24 on the second caliper body 2 are freely rotatable by the hinge shaft 3, the first splicing connection portion 15 on the first caliper body 1
  • the second expansion joint portion 25 is disengaged from the second nipper 2
  • the first pressurizing function portion 12 and the second pressurizing function portion 22 can reduce the pitch of the screw by the U-shaped groove at the end thereof.
  • Figure 3 is a schematic view showing the structure of the expanded state of the present invention.

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

Abstract

一种双用钳，包括：第一钳体（1），第二钳体（2）。当第一钳体（1）与第二钳体（2）通过第一加压连接部（14）和第二加压连接部（24）连接时，第一手持部（11）和第二手持部（21）相对运动，第一加压功能部（12）和第二加压功能部（22）也相对运动，完成加压动作；当第一钳体（1）与第二钳体（2）通过第一撑开连接部（15）和第二撑开连接部（25）连接时，第一手持部（11）和第二手持部（21）相对运动，第一撑开功能部（13）和第二撑开功能部（23）做背向运动，完成撑开动作。双用钳结构简单，操作方便，使其方便、快捷地在撑开、加压功能之间自由的进行切换。

Description

一种双用钳 技术领域
本发明涉及骨科医疗器械工具技术领域，尤其涉及一种双用钳。
背景技术
随着脊柱内固定手术的发展，使用脊柱钉棒固定系统对脊柱损伤及脊柱疾病进行复位矫正得到越来越广泛的应用，在手术过程中需要使用大量椎弓根螺钉对脊椎进行固定，需借助医用钳对螺钉位置进行调整。现有的医用钳仅具有撑开或加压中某一项功能，而实际手术过程中需要不断的变换不同功能的医用钳来对螺钉位置进行调整。这样一来，不但使得操作繁琐，而且增加了手术中的医用钳数量，进而增加了医疗成本。
发明内容
本发明要解决的问题在于提供一种结构简单、可以方便、快捷地在撑开和加压两种功能之间进行自由切换的双用钳。
为了解决上述技术问题，本发明涉及了一种双用钳，包括：第一钳体，该第一钳体包括第一手持部、第一加压功能部和第一撑开功能部，在第一手持部与第一加压功能部和第一撑开功能部过渡区域分别设置有第一加压连接部和第一撑开连接部；还包括第二钳体，该第二钳体包括第二手持部、及与第一加压功能部和第一撑开功能部分别对应设置的第二加压功能部和第二撑开功能部，该第二手持部与第二加压功能部和第二撑开功能部的过渡区域分别设置有第二加压连接部和第二撑开连接部。第二加压连接部和第二撑开连接部分别与第一加压连接部和第一撑开连接部对应设置。当第一钳体与第二钳体通过第一加压连接部和第二加压连接部连接时，当第一手持部和第二手持部相对运动，第一加压功能部和第二加压功能部也相对运动，完成加压动作；当第一钳体与第二钳体通过第一撑开连接部和第二撑开连接部 连接时，当第一手持部和第二手持部相对运动，第一撑开功能部和第二撑开功能部做背向运动，完成撑开动作。
本发明提供的双用钳结构简单，在实际操作过程中，分别通过加压连接部、撑开连接部的脱合操作就可方便、快捷地使其在撑开、加压功能之间自由的进行切换。
作为本发明的进一步改进，位于第一钳体上的第一加压功能部外形设置为弧形，第一撑开功能部外形设置为近似直线形；第二加压功能部和第二撑开功能部外形与所述第一加压功能部和第一撑开功能部外形对称设置。
在钳子在撑开和加压功能间进行转换时，合适的端部外形能更有效、快捷地对圆棒进行控制。
作为本发明的进一步改进，第一加压连接部和第二加压连接部及第一撑开连接部和第二撑开连接部均通过铰接轴连接。
通过铰接轴连接钳体连接部结构形式简单，拆、装过程方便、快捷。
作为本发明的进一步改进，铰接轴的头部外缘设置为非圆形，通过任一铰接轴连接的两个相对应铰接孔中至少有一个其外缘设置为与铰接轴的头部外缘相吻合的非圆形。
铰接轴的头部外缘及与之相应的至少一个铰接孔采用非圆形设计，且二者相吻合。这样设计使得铰接轴在钳子进行功能转换过程中可方便、快捷地与相应铰接孔脱合，且铰接轴在使用过程中及脱合后不易从铰接孔中窜出。
作为本发明的进一步改进，非圆形优选菱形。
作为本发明的进一步改进，铰接孔内壁均设置有耐磨层。
铰接孔内壁设置的耐磨层有效地降低了铰接孔内壁的磨损，保证了钳子的使用寿命和精度。
作为本发明的进一步改进，在第一加压功能部、第一撑开功能部上均设置有与该功能部工作面相垂直的卡槽，且在第二加压功能部、第二撑开功能部上也均开设有与之相对应的卡槽。
作为本发明的进一步改进，卡槽设置为U形。
在两钳体功能部的端部设置有上、下对应的卡槽，使得钳子对圆棒的控制更加方便、精准。
作为本发明的进一步改进，第一手持部与第二手持部上均设置有减轻槽或减轻孔。
在钳体手持部上设置的减轻槽或减轻孔在满足其使用强度的前提下，大大降低了其自身重量，从而降低了操作人员的体力负荷及疲劳感。
作为本发明的进一步改进，第一钳体与第二钳体材质均为医用ixef 1022塑料。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明的立体结构示意图。
图2是本发明的加压状态结构示意图。
图3是本发明的撑开状态结构示意图。
图4是本发明的铰接轴结构示意图。
1-第一钳体；11-第一手持部；12-第一加压功能部；13-第一撑开功能部；14-第一加压连接部；15-第一撑开连接部；2-第二钳体；21-第二手持部；22-第二加压功能部；23-第二撑开功能部；24-第二加压连接部；25-第二撑开连接部；3-铰接轴。
具体实施方式
下面结合具体实施例，对本发明的内容做进一步的详细说明：
为了达到本发明的目的，图1中示出了本发明双用钳的立体结构 示意图。该双用钳包括两个通过铰接轴3相互连接且可自由活动的钳体，分别为第一钳体1和第二钳体2。除了采用铰接轴连接的方式，当然，也可采用其他一切适合的连接形式。第一钳体1和第二钳体2均采用ixef 1022塑料制成。在钳体1、2上可设置减轻槽或减轻孔，这样一来，在满足其使用强度的前提下，大大降低了其自身重量，从而降低了操作人员的体力负荷及疲劳感。在上述第一钳体1的第一加压连接部14和第一撑开连接部15上均开设有铰接孔，与之相对应的，在上述第二钳体2的第二加压连接部24和第二撑开连接部25上均开设有铰接孔；第一钳体1上的铰接孔与第二钳体2上的铰接孔的位置分别一一对应，使用铰接轴3对两钳片1、2进行脱、合操作。上述铰接轴3头部外缘设置为非圆形，通过铰接轴3连接的两个相对应铰接孔中至少有一个其外缘设置为与铰接轴3头部外缘相吻合的非圆形，优选菱形，当然也可选用其他任何适合的形状。铰接轴3头部外缘及与之相应的铰接孔二者相吻合且具有一定的合理间隙。这样的设计使得铰接轴3在钳子进行功能转换过程中，可以方便、快捷地与相应铰接孔进行插入或分离，便于钳子在撑开、加压功能之间进行自由切换，且铰接轴3在使用过程中及脱合后不易从铰接孔中窜出。为了防止铰接孔在长时间使用过程中发生磨损，进而降低钳子的使用寿命和精度，在其内壁上可设置耐磨层。为了对圆棒的控制更加方便，第一钳体1上的第一加压功能部12外形设置为弧形，第一撑开功能部13外形设置为近似直线形，第二加压功能部22和第二撑开功能部23外形与所述第一加压功能部12和第一撑开功能部13外形对称设置，以便于对圆棒分别进行加压、撑开控制。当然，第一钳体1与第二钳体2上的功能部外形也可以设置为其他满足其使用功能的其他任何形状。在第一加压功能部12、第一撑开功能部13上均设置有与该功能部工作面相垂直的U形卡槽，且在第二加压功能部22、第二撑开功能部23上也均开设有与之相对应的U形卡槽。当然，U形卡槽的具体设计形式也可根据圆棒的外形进行确定，可为其他适合的任何形式。上述U形卡槽的开口尺寸可根据具体圆棒外径确定；为了避免圆棒对U 形卡槽的磨损，可在U形卡槽壁上涂覆耐磨层。
图2是本发明的加压状态结构示意图。当第一钳体1上第一加压连接部14与第二钳体2上第二加压连接部24通过铰接轴3可自由转动，而第一钳体1上第一撑开连接部15与第二钳体2上第二撑开连接部25脱开时，第一加压功能部12与第二加压功能部22就可通过其末端的U型槽使得螺钉的间距减小。
图3是本发明的撑开状态结构示意图。当第一钳体1上第一撑开连接部15与第二钳体2上第二撑开连接部25通过铰接轴3可自由转动，而第一钳体1上第一加压连接部14与第二钳体2上第二加压连接部24脱开时，便可通过其末端U型槽来使得螺钉的间距增大。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

  1. 一种双用钳，其特征在于，其包括：
    第一钳体，所述第一钳体包括第一手持部、第一加压功能部和第一撑开功能部，在所述第一手持部与第一撑开功能部过渡区域设置有第一撑开连接部，所述第一手持部与第一加压功能部过渡区域设置有第一加压连接部；
    还包括第二钳体，所述第二钳体包括第二手持部、及与第一加压功能部和第一撑开功能部分别对应设置的第二加压功能部和第二撑开功能部，所述第二手持部与第二撑开功能部过渡区域设置有第二撑开连接部，所述第二手持部与第二加压功能部过渡区域设置有第二加压连接部；所述第二加压连接部和第二撑开连接部分别与第一加压连接部和第一撑开连接部对应设置；
    当所述第一钳体与第二钳体通过第一加压连接部和第二加压连接部连接时，第一手持部和第二手持部相对运动，第一加压功能部和第二加压功能部也相对运动，完成加压动作；当所述第一钳体与第二钳体通过第一撑开连接部和第二撑开连接部连接时，第一手持部和第二手持部相对运动，第一撑开功能部和第二撑开功能部做背向运动，完成撑开动作。
  2. 根据权利要求1所述的双用钳，其特征在于，位于所述第一钳体上的第一加压功能部外形设置为弧形，第一撑开功能部外形设置为近似直线形；所述第二加压功能部和第二撑开功能部外形与所述第一加压功能部和第一撑开功能部外形对称设置。
  3. 根据权利要求1所述的双用钳，其特征在于，所述第一加压连接部和第二加压连接部及所述第一撑开连接部和第二撑开连接部均通过铰接轴连接。
  4. 根据权利要求3所述的双用钳，其特征在于，所述铰接轴的头部外缘设置为非圆形，通过所述铰接轴连接的两个相对应铰接孔中至少有一个其外缘设置为与铰接轴的头部外缘相吻合的非圆形。
  5. 根据权利要求4所述的双用钳，其特征在于，所述非圆形优选菱形。
  6. 根据权利要求4所述的双用钳，其特征在于，所述铰接孔的内壁均设置有耐磨层。
  7. 根根据权利要求1所述的双用钳，其特征在于，在所述第一加压功能部、所述第一撑开功能部上均设置有与该功能部工作面相垂直的卡槽，且在所述第二加压功能部、所述第二撑开功能部上也均开设有与之相对应的卡槽。
  8. 根据权利要求7所述的双用钳，其特征在于，所述卡槽设置为U形。
  9. 根据权利要求1-8任一项中所述的双用钳，其特征在于，所述第一手持部与第二手持部上均设置有减轻槽或减轻孔。
  10. 根据权利要求9所述的双用钳，其特征在于，所述第一钳体与第二钳体材质均为ixef 1022塑料。
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