WO2022057090A1 - 开口器支撑装置 - Google Patents

开口器支撑装置 Download PDF

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Publication number
WO2022057090A1
WO2022057090A1 PCT/CN2020/132236 CN2020132236W WO2022057090A1 WO 2022057090 A1 WO2022057090 A1 WO 2022057090A1 CN 2020132236 W CN2020132236 W CN 2020132236W WO 2022057090 A1 WO2022057090 A1 WO 2022057090A1
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WO
WIPO (PCT)
Prior art keywords
eccentric
opening device
stud
rotating shaft
shaped
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Application number
PCT/CN2020/132236
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English (en)
French (fr)
Inventor
黄建民
杨仕明
Original Assignee
黄建民
福建医科大学附属协和医院
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Application filed by 黄建民, 福建医科大学附属协和医院 filed Critical 黄建民
Priority to EP20911305.9A priority Critical patent/EP3998039B1/en
Publication of WO2022057090A1 publication Critical patent/WO2022057090A1/zh

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Classifications

    • 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
    • A61B90/50—Supports for surgical instruments, e.g. articulated arms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00149—Holding or positioning arrangements using articulated arms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
    • 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
    • A61B90/10—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 for stereotaxic surgery, e.g. frame-based stereotaxis
    • A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
    • A61B90/16—Bite blocks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B13/00—Instruments for depressing the tongue
    • 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
    • A61B90/50—Supports for surgical instruments, e.g. articulated arms
    • A61B90/57—Accessory clamps
    • A61B2090/571—Accessory clamps for clamping a support arm to a bed or other supports

Definitions

  • the utility model relates to an opening device supporting device.
  • the patient's mouth In clinical practice of general anesthesia for the pharynx and oral cavity, the patient's mouth must be kept open with an opener. In order to fully expose the deep oral cavity and pharyngeal cavity, the assistant needs to continuously lift the tongue depressor handle during the operation. The process is not only labor-intensive, but also takes up space, or the handle of the spatula is propped up with instruments such as bowls and plates, but this method is unstable and easy to slip off.
  • the utility model provides an opening device supporting device, which solves the problems that the existing opening device supporting device is inconvenient to use, cannot precisely adjust the angle and strength during the operation, and is prone to tissue damage.
  • an opening device supporting device includes a holding structure and an eccentric rotating shaft structure, the holding structure is connected to the opening device, and the eccentric rotating shaft structure is composed of an eccentric structure and a rotating shaft structure,
  • the eccentric structure is fixed on the holding structure, the eccentric structure is provided with a U-shaped slot, the end of the rotating shaft structure is eccentrically hinged in the U-shaped slot, and the eccentric rotating shaft structure is locked by a nut fastening structure.
  • the holding structure is L-shaped, the horizontal part is on the bottom, the vertical part is on the top, and the horizontal part is provided with a C-shaped slot for connecting and fixing the opener.
  • the end of the vertical portion of the holding structure is integrally formed with the eccentric structure, and the two parallel arc legs of the U-shaped slot are provided with eccentric holes opposite to each other.
  • the eccentric structure is inserted into the end of the vertical part of the holding structure, the two parallel arc legs of the U-shaped slot are provided with eccentric holes opposite to each other, and the U-shaped slot is connected to two parallel arcs.
  • the connecting part of the arc foot is fixed on the vertical part of the holding structure through a bolt.
  • an adjusting screw for adjusting the movement of the latch is provided on the side wall of the vertical part of the holding structure.
  • the rotating shaft structure includes a stud and an extension sleeve, one end of the stud is rotatably connected between the eccentric holes on the two parallel arc feet through an eccentric bolt, and the other end of the stud is fixedly connected with the extension sleeve.
  • an extension rod is fixed in the extension sleeve by bolts.
  • one end of the extension rod is fixed in the extension sleeve, and the other end is provided with a stable support structure.
  • the utility model has the following beneficial effects: the structure is light, the installation is convenient, the support is stable, the support angle and strength can be adjusted infinitely and finely within the range of ⁇ 90°, and the oral cavity can be stably and effectively exposed during the operation. and pharynx.
  • Fig. 1 is a structural schematic diagram of Embodiment 1 of the present utility model
  • FIG. 2 Explosion diagram of Embodiment 1 of the present utility model
  • FIG. 1 Schematic diagram of the extension rod structure
  • Embodiment 2 is a schematic structural diagram of Embodiment 2 of the present utility model
  • FIG. 5 Explosion diagram of embodiment 2 of the present utility model
  • Figure 6 is a schematic view of the structure of the C-shaped card slot on the side of the horizontal part.
  • Figure 7 is a state diagram of the utility model
  • Opening device support device 2- Existing opening device with tongue depressor; 3- Holding structure; 4- U-shaped slot; 5- Stud; 6- Fastening nut; 7- Extension sleeve Cylinder; 8-bolt; 9-C-shaped slot; 10-eccentric hole; 11-eccentric bolt; 12-smooth hole; 13-bolt; 14-horizontal seat plate; 15-bolt; 16-vertical jack; 17 - Adjusting screw; 19 - extension rod; 20 - stabilizing support structure.
  • an opener support device 1 comprising a holding structure 3 and an eccentric shaft structure, the holding structure is connected to the opener, and the eccentric rotating shaft structure is composed of an eccentric structure and a rotating shaft
  • the eccentric structure is fixed on the holding structure, the eccentric structure is provided with a U-shaped slot 4, the end of the rotating shaft structure is eccentrically hinged in the U-shaped slot, and the eccentric rotating shaft structure is locked by a fastening structure.
  • the holding structure is L-shaped, the horizontal part is at the bottom, the vertical part is at the top, and the horizontal part is provided with a C-shaped slot 9 for connecting and fixing the opening device 2, and the C-shaped slot can be set At the bottom of the horizontal part or the side of the horizontal part, and then on the top surface of the horizontal part, there are bolts 8 for locking the opener in the C-shaped slot.
  • the outer side of the end of the vertical portion of the holding structure is integrally formed with the eccentric structure, and the two parallel arc legs of the U-shaped slot are provided with eccentric holes 10 opposite to each other.
  • the ends of the two parallel arc legs of the slot are arc-shaped, and the eccentric hole is a hole that does not coincide with the center of the arc at the ends of the two parallel arc legs of the U-shaped slot, and the eccentric hole can only be used. Below the center of the circle.
  • the rotating shaft structure includes a stud 5 and an extension sleeve 7.
  • One end of the stud is rotatably connected between the eccentric holes on the two parallel arc feet through an eccentric bolt, and the other end of the stud is connected to the eccentric holes on the two parallel arc feet.
  • the extension sleeve is fixed or the other end of the stud is directly integrally formed into the extension sleeve, and the extension rod 19 is fixed in the extension sleeve through the bolt 13;
  • the ends of the studs are provided with optical holes 12 for the eccentric bolts to pass through.
  • the eccentric bolts are provided with threads on the side away from the bolt head, and the side close to the bolt head is the bolt with the optical axis.
  • the length of the optical axis Equal to the distance between the two parallel arc feet of the U-shaped slot, through the eccentric bolts in turn through the eccentric hole on one side of the parallel arc foot, the light hole, the eccentric hole on the other side of the parallel arc foot, and then By locking the nut, the stud is rotated and connected to the optical axis.
  • the stud is screwed with a tightening nut 6; when the tightening nut is fixed to a certain position on the end arc of the parallel arc foot (tangent line), the rotating shaft is locked in the positive direction
  • the oral cavity with an opener with a spatula, lift the handle of the spatula to the required angle and strength, and tighten the nut to fix the shaft, which produces a stable support effect. It can be adjusted by tightening the nut to realize the stepless diameter change of the eccentric shaft, and it can lift and support at any angle within the range of ⁇ 90°.
  • one end of the extension rod is fixed in the extension sleeve by screws, and the other end is provided with a stable support structure 20.
  • the extension rod is a solid metal rod with a diameter of 7.0mm-8.0mm and a length of 300mm-400mm.
  • the stable support structure is a triangular or circular structure, and the support and stability function is achieved by the stable support structure seat leaning against the instrument table.
  • the above-mentioned embodiment is an integrated holding structure. Now, a second combined holding structure is provided.
  • Example 2 because other structures are the same as those in Example 1, they will not be repeated here.
  • the eccentric structure is inserted into the end of the vertical part of the structure, the two parallel arc feet of the U-shaped card slot on the eccentric structure are provided with eccentric holes opposite to each other, and the U-shaped card groove is connected to the two parallel arc feet.
  • the lower end face of the connecting portion is fixed on the vertical portion of the holding structure through a latch;
  • the holding structure is L-shaped, the horizontal part is at the bottom and the vertical part is at the top.
  • the end face is provided with a plug 15, one end of the plug is connected to the connecting part on the U-shaped card slot, and the other end is inserted into the vertical jack.
  • an adjusting screw 17 for adjusting the movement of the latch is provided on the side wall of the horizontal seat plate on the vertical portion of the holding structure, for locking the latch.
  • the combined holding structure can realize the horizontal movement of the support rod, and can also achieve stable support when the surgical patient's head position deviates from the midline.
  • fixed connection can be understood as: detachable fixed connection (for example, using bolts or screws), can also be understood as : Non-removable fixed connection (such as riveting, welding), of course, the mutual fixed connection can also be replaced by a one-piece structure (for example, using a casting process to integrally form) (except that it is obviously impossible to use an integral forming process).
  • any of the above-mentioned technical solutions disclosed in the present utility model is used to represent positional relationships such as “vertical”, “horizontal”, “upper”, “lower”, “front”, “rear”, “left”, The orientation or positional relationship indicated by “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, etc.
  • Any component provided by the present invention may be assembled from a plurality of individual components, or may be a single component manufactured by an integral molding process.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Optics & Photonics (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Dentistry (AREA)
  • Neurosurgery (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Surgical Instruments (AREA)
  • Prostheses (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

一种开口器支撑装置（1），包括握持结构（3）、偏心转轴结构，握持结构（3）连接开口器（2），偏心转轴结构由偏心结构和转轴结构组成，偏心结构固连于握持结构（3）上，偏心结构上设有U形卡槽（4），转轴结构的端部偏心铰接于U形卡槽（4）内，且偏心转轴结构通过一螺母紧固结构锁固，握持结构（3）呈L形，水平部在下，竖直部在上，水平部上设置用于连接固定开口器（2）的C形槽（9），转轴结构包括螺柱（5）、延伸套筒（7），螺柱（5）的一端通过偏心螺栓（11）连接于两个平行圆弧脚上的偏心孔（10）之间，螺柱（5）的另一端与延伸套筒（7）固连，延伸套筒（7）内通过螺栓（13）固定有延伸杆（19）。开口器支撑装置（1）结构轻巧，安装方便，支撑稳妥，可在±90°范围内对支撑角度和力度进行无级精细调节，能在手术过程中稳定有效显露口腔及咽腔。

Description

开口器支撑装置 技术领域
本实用新型涉及一种开口器支撑装置。
 背景技术
临床上进行咽部和口腔全麻手术时，须用开口器将患者的口腔保持张开状态，为了充分显露口腔深部及咽腔，在手术过程中需助手持续抬起压舌板手柄，这一过程既耗费人力，又占用空间，或用碗盘等器械把压舌板手柄垫起，但该方法支撑不稳，容易滑脱。
 技术问题
根据挂钩悬吊原理设计了现有多种开口器支撑装置，但现有的开口器支撑装置结构粗简，使用不便，手术过程中不能精确调整角度与力度，且易产生组织损伤。
 技术解决方案
本实用新型提出一种开口器支撑装置，解决现有的开口器支撑装置使用不便，手术过程中不能精确调整角度与力度，且易产生组织损伤的问题。
本发明解决技术问题所采用的方案是，一种开口器支撑装置：包括握持结构、偏心转轴结构，所述的握持结构连接开口器，所述偏心转轴结构由偏心结构和转轴结构组成，偏心结构固连于握持结构上，偏心结构上设有U形卡槽，转轴结构的端部偏心铰接于U形卡槽内，且偏心转轴结构通过一螺母紧固结构锁固。
进一步的，所述的握持结构呈L形，水平部在下，竖直部在上，水平部上设置有用于连接固定开口器的C形卡槽。
进一步的，所述的握持结构的竖直部的端部与偏心结构一体成型， U形卡槽的两个平行圆弧脚上均相对开设有偏心孔。
进一步的，所述的握持结构的竖直部的端部上插固偏心结构，U形卡槽的两个平行圆弧脚上均相对开设有偏心孔，U形卡槽上连接两个平行圆弧脚的连接部通过插销固定在握持结构的竖直部。
进一步的，所述的握持结构的竖直部的侧壁上设置有用于调节插销活动的调节螺丝。
进一步的，所述的转轴结构包括螺柱、延伸套筒，螺柱的一端通过偏心螺栓转动连接于两个平行圆弧脚上的偏心孔之间，螺柱的另一端与延伸套筒固连，延伸套筒内通过螺栓固定有延伸杆。
进一步的，所述的螺柱上螺接有紧固螺母。
进一步的，所述的延伸杆的一端固定于延伸套筒内，另一端设置有稳定支撑结构。
 有益效果
与现有技术相比，本实用新型具有以下有益效果：结构轻巧，安装方便，支撑稳妥，可在±90°范围内对支撑角度和力度进行无极精细调节，能在手术过程中稳定有效显露口腔及咽腔。
 附图说明
下面结合附图对本实用新型专利进一步说明。
图1  本实用新型实施例1结构示意图；
图2  本实用新型实施例1爆炸图；
图3  延伸杆结构示意图；
图4  本实用新型实施例2结构示意图；
图5  本实用新型实施例2爆炸图；
图6  C形卡槽位于水平部侧部的结构示意图。
图7  本实用新型使用状态图；
图中：1-开口器支撑装置；2-现有带压舌板的开口器；3-握持结构；4-U形卡槽；5-螺柱；6-紧固螺母；7-延伸套筒；8-螺栓；9-C形卡槽；10-偏心孔；11-偏心螺栓；12-光孔；13-螺栓；14-水平座板；15-插销；16-竖直插孔；17-调节螺丝；19-延伸杆；20-稳定支撑结构。
 本发明的实施方式
下面结合附图和具体实施方式对本实用新型进一步说明。
如图1-7所示，实施例1，一种开口器支撑装置1：包括握持结构3、偏心转轴结构，所述的握持结构连接开口器，所述偏心转轴结构由偏心结构和转轴结构组成，偏心结构固连于握持结构上，偏心结构上设有U形卡槽4，转轴结构的端部偏心铰接于U形卡槽内且偏心转轴结构通过一紧固结构锁固。
在本实施例中，所述的握持结构呈L形，水平部在下，竖直部在上，水平部上设置有用于连接固定开口器2的C形卡槽9,C形卡槽可设置在水平部的底部或水平部的侧部,然后水平部的顶面上贯穿有用于锁固C形卡槽内的开口器的螺栓8。
在本实施例中，所述的握持结构的竖直部的端部外侧上与偏心结构一体成型，U形卡槽的两个平行圆弧脚上均相对开设有偏心孔10, U形卡槽的两个平行圆弧脚的端部为圆弧形,偏心孔为不与U形卡槽的两个平行圆弧脚的端部的圆弧的圆心位置重合的孔，且偏心孔只能设在圆心位置的下方。
在本实施例中，所述的转轴结构包括螺柱5、延伸套筒7，螺柱的一端通过偏心螺栓转动连接于两个平行圆弧脚上的偏心孔之间，螺柱的另一端与延伸套筒固连或螺柱的另一端直接一体成型延伸套筒，延伸套筒内通过螺栓13固定有延伸杆19；螺柱的一端通过偏心螺栓11转动连接于两个平行圆弧脚上的偏心孔之间，螺柱的端部设置有供偏心螺栓穿过的光孔12，偏心螺栓为远离螺栓头一侧上设置螺纹，靠近螺栓头的一侧为光轴的螺栓，光轴的长度等于U形卡槽的两个平行圆弧脚之间的距离，通过偏心螺栓依次穿过一侧平行圆弧脚上的偏心孔、光孔、另一侧平行圆弧脚上的偏心孔，然后通过螺母锁固，将螺柱转动连接于光轴上。
在本实施例中，所述的螺柱上螺接有紧固螺母6；通过调节紧固螺母固定于平行圆弧脚的端部圆弧上（切线）某一位置时，转轴即正向锁定于该偏心半径端点处，手术时，用带压舌板的开口器打开口腔，抬起压舌板手柄至所需角度及力度，紧固螺母使转轴固定，即产生稳定支撑效果。可通过紧固螺母调节，实现偏心转轴无极变径，在±90°范围内的任一角度产生提举支撑作用。
在本实施例中，所述的延伸杆的一端通过螺丝固定于延伸套筒内，另一端设置有稳定支撑结构20，延伸杆为实心金属杆，直径7.0mm～8.0mm,长度300mm～400mm，稳定支撑结构为三角形或圆环形结构，通过稳定支撑结构座靠于器械台面起支撑稳定功能。
上述实施例为一种一体式的握持结构，现提供第二种组合式的握持结构，实施例2，因为其他结构与实施例1相同，所以此处不再赘述，所述的握持结构的竖直部的端部上插固偏心结构，偏心结构上的U形卡槽的两个平行圆弧脚上均相对开设有偏心孔，U形卡槽上连接两个平行圆弧脚的连接部下端面通过插销固定在握持结构的竖直部；
握持结构呈L形，水平部在下，竖直部在上，竖直部上设置有水平座板14，水平座板上设置有竖直插孔16，U形卡槽上的连接部的下端面设置有插销15，插销一端连接于U形卡槽上的连接部上，另一端插入竖直插孔中。
在本实施例中，所述的握持结构的竖直部上的水平座板的侧壁上设置有用于调节插销活动的调节螺丝17，用于锁固插销。
在本实施例中，组合式的握持结构可实现支撑杆的水平移动，在手术患者头位偏离中线时也可实现稳定支撑作用。
上述本实用新型所公开的任一技术方案除另有声明外，如果其公开了数值范围，那么公开的数值范围均为优选的数值范围，任何本领域的技术人员应该理解：优选的数值范围仅仅是诸多可实施的数值中技术效果比较明显或具有代表性的数值。由于数值较多，无法穷举，所以本实用新型才公开部分数值以举例说明本实用新型的技术方案，并且，上述列举的数值不应构成对本实用新型创造保护范围的限制。
如果本文中使用了“第一”、“第二”等词语来限定零部件的话，本领域技术人员应该知晓：“第一”、“第二”的使用仅仅是为了便于描述上对零部件进行区别如没有另行声明外，上述词语并没有特殊的含义。
本实用新型如果公开或涉及了互相固定连接的零部件或结构件，那么，除另有声明外，固定连接可以理解为：能够拆卸地固定连接( 例如使用螺栓或螺钉连接)，也可以理解为：不可拆卸的固定连接(例如铆接、焊接)，当然，互相固定连接也可以为一体式结构( 例如使用铸造工艺一体成形制造出来) 所取代(明显无法采用一体成形工艺除外)。
另外，上述本实用新型公开的任一技术方案中所应用的用于表示位置关系例如“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本专利，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、以特定的方位构造和操作，因此不能理解为对本专利的限制，且上述本实用新型公开的任一技术方案中所应用的用于表示形状的术语除另有声明外其含义包括与其近似、类似或接近的形状。
本实用新型提供的任一部件既可以是由多个单独的组成部分组装而成，也可以为一体成形工艺制造出来的单独部件。
最后应当说明的是:以上实施例仅用以说明本实用新型的技术方案而非对其限制；尽管参照较佳实施例对本实用新型进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本实用新型的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本实用新型技术方案的精神，其均应涵盖在本实用新型请求保护的技术方案范围当中。

Claims (8)

  1. 一种开口器支撑装置，其特征在于：包括握持结构、偏心转轴结构，所述的握持结构连接开口器，所述偏心转轴结构由偏心结构和转轴结构组成，偏心结构固连于握持结构上，偏心结构上设有U形卡槽，转轴结构的端部偏心铰接于U形卡槽内，且偏心转轴结构通过一螺母紧固结构锁固。
  2. 根据权利要求1所述的开口器支撑装置,其特征在于：所述的握持结构呈L形，水平部在下，竖直部在上，水平部上设置有用于连接开口器的C形卡槽。
  3. 根据权利要求2所述的开口器支撑装置,其特征在于：所述的握持结构的竖直部的端部与偏心结构一体成型， U形卡槽的两个平行圆弧脚上均相对开设有偏心孔。
  4. 根据权利要求2所述的开口器支撑装置,其特征在于：所述的握持结构的竖直部的端部上插固偏心结构，U形卡槽的两个平行圆弧脚上均相对开设有偏心孔，U形卡槽上连接两个平行圆弧脚的连接部通过插销固定在握持结构的竖直部。
  5. 根据权利要求4所述的开口器支撑装置,其特征在于：所述的握持结构的竖直部的侧壁上设置有用于调节插销活动的调节螺丝。
  6. 根据权利要求3或5所述的开口器支撑装置,其特征在于：所述的转轴结构包括螺柱、延伸套筒，螺柱的一端通过偏心螺栓转动连接于两个平行圆弧脚上的偏心孔之间，螺柱的另一端与延伸套筒固连，延伸套筒内通过螺栓固定有延伸杆。
  7. 根据权利要求6所述的开口器支撑装置,其特征在于：所述的螺柱上螺接有紧固螺母。
  8. 根据权利要求7所述的开口器支撑装置,其特征在于：所述的延伸杆的一端固定于延伸套筒内，另一端设置有稳定支撑结构。
PCT/CN2020/132236 2020-09-17 2020-11-27 开口器支撑装置 WO2022057090A1 (zh)

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