WO2020048087A1 - 一种撑开叶片、单向撑开装置和双向撑开装置 - Google Patents

一种撑开叶片、单向撑开装置和双向撑开装置 Download PDF

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Publication number
WO2020048087A1
WO2020048087A1 PCT/CN2019/073656 CN2019073656W WO2020048087A1 WO 2020048087 A1 WO2020048087 A1 WO 2020048087A1 CN 2019073656 W CN2019073656 W CN 2019073656W WO 2020048087 A1 WO2020048087 A1 WO 2020048087A1
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WO
WIPO (PCT)
Prior art keywords
spreading
fixed
movable
arm
clamping portion
Prior art date
Application number
PCT/CN2019/073656
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English (en)
French (fr)
Inventor
黄孝敏
Original Assignee
上海锐植医疗器械有限公司
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 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 EP19857381.8A priority Critical patent/EP3705053B1/en
Priority to US16/627,759 priority patent/US11045180B2/en
Publication of WO2020048087A1 publication Critical patent/WO2020048087A1/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
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0206—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
    • 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
    • A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • A61B2017/00407—Ratchet means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00473—Distal part, e.g. tip or head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00477—Coupling

Definitions

  • the invention relates to the field of medical instruments, and in particular to a spreading blade, a unidirectional spreading device and a bidirectional spreading device.
  • the purpose of the present invention is to provide a spreading blade, a unidirectional spreading device and a two-way spreading device.
  • the structure of the spreading blade is simple and easy to assemble and disassemble. It can be used in both the unidirectional spreading device and the
  • the two-way spreading device is convenient for the replacement of the spreading blades on the one-way spreading device or the two-way spreading device.
  • the present invention provides a spreading blade, which includes a first clamping portion, a second clamping portion, a fixing portion, a blocking plate and a hook edge, wherein:
  • the first clamping portion is columnar, and one side of the first clamping portion has an axial plane cut surface
  • the second card portion is columnar, one end of the second card portion is connected to the first card portion, and the other end is fixed to the fixing portion.
  • a protrusion is provided on a side wall of the second card portion.
  • One end of the baffle plate is connected to the fixed portion, and the other end is provided with the hook edge inclined outward, and the fixed portion and the hook edge are both placed on the same side of the baffle plate.
  • the top side surface of the first clamping portion is provided with an oblique cutting surface inclined to the flat cutting surface.
  • a convex ring is provided between the first and second clamping portions, and the diameters of the first and second clamping portions are both smaller than the convex ring.
  • a diameter is provided at a position where the second clamping portion is in contact with the fixing portion, and the diameter of the projection is larger than the diameter of the second clamping portion.
  • the baffle plate is arc-shaped, and the arching direction is opposite to the axis of the second clamping portion.
  • the hook edges are two triangular hook plates placed at the corners of the baffle panel, and arc-shaped transition edges are provided between the two hook plates.
  • the present invention proposes a one-way spreading device using the spreading blade described above, the spreading blade is buckled with a stretch-grip, and the stretch-grip includes an axially-connected buckle, a connecting rod, and a grip. Holding the arm, the bracing grip is clamped on the first clamping portion through the buckle ring, the inner diameter of the buckle ring matches the outer diameter of the first clamping portion, and the inner side wall of the buckle ring An abutment block is provided, and the abutment block abuts on the flat cut surface.
  • the present invention provides a two-way spreading device using the above-mentioned spreading blades, including a moving device, a fixed spreading arm, a movable spreading arm, and two said spreading blades, wherein:
  • the moving device includes a fixed base, a moving rack and a rotary gear knob.
  • the fixed base has a hollow cavity therethrough, the moving rack is placed in the cavity, and the rotary gear knob is rotatably fixed in the space.
  • the rotary knob is engaged with a tooth edge of the moving rack;
  • One end of the fixed support arm is provided with an opening slot, and the other end is connected with the fixed seat;
  • One end of the movable spreading arm is provided with another said slot, and the other end is connected with said moving rack;
  • the fixed spreading arm and the movable spreading arm are arranged in parallel, and the positions of the locking slots respectively provided on the fixed spreading arm and the movable spreading arm correspond to each other, and the two of the spreading blades are The bending directions of the hook edges are opposite to each other, and the retaining slot is clamped on the second clamping portion of the spreading blade;
  • the moving rack moves forward and backward in the cavity under the thrust of the meshing tooth blade to adjust the horizontal distance between the fixed and movable open arms, so that The two spreading blades which are clamped on the fixed spreading arm and the movable spreading arm are approaching or away from each other.
  • the opening directions of the latching slots respectively provided on the fixed spreading arms and the movable spreading arms are facing back.
  • the latching grooves are U-shaped, and are respectively arc-shaped groove bottoms and flush groove edges;
  • a positioning hole with a matching engagement with the positioning block is provided in the middle of the bottom of the groove;
  • a recessed movable cavity is provided on a wall surface of the groove side, and a limiting clip is provided in the movable cavity.
  • the limit clip is plate-shaped, and the plate surface is flush with the wall surface of the groove edge.
  • One end of the limiting clip is placed on a side wall of the opening of the movable cavity, and the other end is provided with a protruding abutment edge, and the abutment edge swings back and forth inside and outside the movable cavity under the action of an external force.
  • the moving device further includes a locking member, wherein one end of the locking member is provided with a bent buckle portion, and the other end is provided with a pressing portion.
  • a raised first connection portion is provided in the middle, and a raised second connection portion is provided on the fixing seat, and the first connection portion is rotatably connected to the second connection portion; when the buckle portion is pressed down to At the bottom end, the buckle portion is embedded between adjacent tooth edges of the moving rack, and the moving rack stops moving in the cavity; when the pressing portion is pressed down, the buckle The clamping portion moves upward due to the principle of lever, and the buckling portion that is engaged between adjacent tooth edges of the moving rack moves out, and the moving rack is in the cavity under the adjustment of the rotary knob. mobile.
  • the beneficial effects of the present invention are mainly reflected in: the proposed spreading blade is provided with two clamping structures, namely a first clamping portion and a second clamping portion, which can use different installations with different devices. Way card connection.
  • the one-way spreading device and two-way spreading device use the same type of spreading blades, reducing the use of instruments during surgery, reducing costs, and the connection methods are simple clamping methods, simple structure, easy disassembly and replacement .
  • FIG. 1 is a schematic view of a three-dimensional structure of a spreading blade in the present invention
  • FIG. 2 is a schematic front structural view of a spreading blade in the present invention
  • FIG. 3 is a schematic structural diagram of a unidirectional spreading device in the present invention.
  • FIG. 4 is an enlarged structural schematic view of a buckle of a stay grip in FIG. 5 according to the present invention.
  • FIG. 5 is a schematic structural diagram of a two-way spreading device in the present invention.
  • FIG. 6 is a schematic diagram of the explosion structure of FIG. 5 in the present invention.
  • FIG. 7 is an enlarged structure diagram of the latching slot in FIG. 6 according to 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 invention 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 spreading blade 1.
  • the spreading blade 1 includes a first clamping portion 11, a second clamping portion 12, a fixing portion 13, a blocking plate 14, and a hook edge 15. .
  • the first clamping portion 11 is columnar, one side of the first clamping portion 11 has an axial plane cutting surface 111, and a top side surface of the first clamping portion 11 is provided with an inclined plane 111.
  • the chamfered surface 112; the second clip portion 12 is cylindrical, one end of the second clip portion 12 is connected to the first clip portion 11, and the other end is fixed on the fixing portion 13, between the first clip portion 11 and the second clip portion 12.
  • a convex ring 121 is provided, and the diameters of the first and second clamping portions 11 and 12 are smaller than the diameter of the convex ring 121.
  • a projection 122 is provided at a point where the second clamping portion 12 and the fixing portion 13 meet.
  • the diameter of the second clamping portion 12 is greater than the diameter of the second clamping portion 12, that is, the first clamping portion 11 is restricted by the convex ring 121 on the bottom side, and the second clamping portion 12 is restricted by the convex ring 121 and the projection 122.
  • a protruding positioning block 123 is provided on a side wall of the second clamping portion 12 to facilitate positioning and fixing of the second clamping portion 12 and avoid misalignment of the installation angle.
  • one end of the baffle plate 14 is connected to the fixing portion 13, and the other end is provided with a hook edge 15 inclined outward.
  • the fixing portion 13 and the hook edge 15 are both placed on the same side of the baffle plate 14.
  • the design of the hook edge 15 facilitates the hooking of the skin and prevents the skin from slipping.
  • the baffle panel 14 is arc-shaped, and the arching direction is opposite to the axis of the second clamping portion 12.
  • the baffle-shaped baffle panel 14 can better fit the surface of the skin, avoiding the edges of the flat panel to contact the skin, causing skin And damage.
  • the hook edge 15 is two triangular hook plates 151 placed at the corners of the baffle panel 14. An arc-shaped transition edge 152 is provided between the two hook plates 151.
  • the present invention proposes a unidirectional spreading device, which includes a spreading blade 1 and a spreading grip 2 which is fastened to the spreading blade 1.
  • the buckle ring 21, the connecting rod 23 and the holding arm 24 are connected, and the grip 2 is sleeved on the first clip portion 11 through the buckle ring 21.
  • the inner diameter of the buckle ring 21 matches the outer diameter of the first clip portion 11,
  • An abutment block 22 is provided on the inner side wall of the buckle ring 21, and the abutment block 22 is caught on the flat cut surface 111.
  • the diameter of one end of the holding arm 24 and the connecting rod 23 is smaller than the diameter of the other end.
  • the holding arm 24 is provided with a plurality of slot holes 25.
  • the chamfered surface 112 is directly opposite the block 22, so that the pressing of the abutment block 22 is exactly against the flat cut surface 111, and the bottom side of the buckle 21 is pressed.
  • the convex ring 121 To the convex ring 121.
  • the abutment block 22 is placed on the bottom side of the buckle ring 21, which is convenient for the abutment block 22 to first contact the first card portion 11 when the card is set, and the abutment block 22 is closely attached to the bottom side of the first card portion 11 to avoid buckle.
  • the ring 21 loosens easily.
  • the present invention provides a two-way spreading device, which includes a moving device, a fixed spreading arm 41, a movable spreading arm 42, and two spreading blades 1.
  • the mobile device includes a fixed base 31, a moving rack 32, and a rotary knob 33.
  • the surface of the fixed base 31 is provided with a button hole 314 that opens into the cavity 311.
  • the fixed base 31 has Through the cavity 311, the moving rack 32 is placed in the cavity 311, the rotary knob 33 is rotatably fixed on the fixed seat 31, and the rotary knob 33 is engaged with the tooth edge of the moving rack 32.
  • the fixed seat 31 is provided with a penetrating cylindrical rotation cavity 312 which is adjacent to and communicates with the cavity 311, and the axis direction of the rotation cavity 312 and the axis direction of the cavity 311 are perpendicular to each other, and the rotation position A rotary tooth button 33 is provided in the cavity 312 to facilitate the meshing of the rotary tooth button 33 with the tooth edge of the moving rack 32.
  • one end of the fixed support arm 41 is provided with an opening slot, and the other end is connected to the fixed seat 31; one end of the movable support arm 42 is provided with another locking slot 5, and the other end It is connected with the moving rack 32; the fixed support arm 41 and the movable support arm 42 are arranged in parallel, and the positions of the locking slots 5 respectively provided on the fixed support arm 41 and the movable support arm 42 correspond to each other, and the two supports
  • the bending directions of the hook edges 15 of the opening blade 1 are opposite to each other, and the clamping slot 5 is clamped on the second clamping portion 12 of the opening blade 1;
  • the opening direction of the bit groove 5 faces back.
  • the fixed spreader arm 41 and the movable spreader arm 42 are both multi-segment connecting arms, which can be extended according to actual needs, and the multi-segment connecting arm can be turned and turned through the connection port, which is convenient for folding and storage.
  • the rotary knob 33 rotates, and the moving rack 32 moves forward and backward in the cavity 311 under the thrust of the engaged tooth blade to adjust the fixed spreading arm 41 and the movable spreading arm.
  • the horizontal distance between 42 makes the two spreading blades 1 which are respectively fixed on the fixed spreading arm 41 and the movable spreading arm 42 approach or move away.
  • the latching slot 5 is U-shaped, which is an arc-shaped slot bottom and a flush slot edge; a middle of the slot bottom is provided with a positioning hole 51 that matches and engages with the positioning block 123. ;
  • the recessed movable cavity 52 is provided on the wall surface of the groove side, and the limiting cavity 53 is provided in the movable cavity 52.
  • the limit clamping member 53 is plate-shaped, and the plate surface is flush with the wall surface of the groove edge, and the limit clamping member One end of 53 is placed on the side wall of the opening of the movable cavity 52, and the other end is provided with a protruding abutment edge 54.
  • the abutment edge 54 swings inside and outside the movable cavity 52 under the action of an external force.
  • the mobile device further includes a locking member 34.
  • One end of the locking member 34 is provided with a bent buckle portion 341, the other end is provided with a pressing portion 343, and the lock member 34 is provided in the middle.
  • a convex first connecting portion 342 is provided on the fixing base 31 with a convex second connecting portion 313, and the first connecting portion 342 and the second connecting portion 313 are rotationally connected; when the buckle portion 341 is pushed down to the bottom end
  • the buckle portion 341 is embedded between the adjacent tooth edges of the moving rack 32, and the moving rack 32 stops moving in the cavity 311.
  • the pressing portion 343 is pressed down, the buckle portion 341 moves upward due to the principle of leverage.
  • the latching portions 341 engaged between adjacent tooth edges of the moving rack 32 are moved out, and the moving rack 32 is moved in the cavity 311 under the adjustment of the rotary knob 33.
  • the buckling portion 341 of the locking member 34 is directly opposite the buckling hole 314 on the surface of the fixing seat 31.
  • the tooth edge of the moving rack 32 is exposed by the buckling hole 314 outside the fixing seat 31, which is convenient for the buckling portion 341 of the locking member 34 to buckle. card.
  • the specific use in surgery is as follows: a small incision is made after the skin is cut, and the incision is pulled apart using a unidirectional spreading device. After being opened to an appropriate degree, the bidirectional spreading device is used to continue to expand the incision area smoothly.
  • the proposed spreading blade is provided with two clamping structures, namely a first clamping portion and a second clamping portion, which can be engaged with different devices in different installation manners.
  • the one-way spreading device and two-way spreading device use the same type of spreading blades, reducing the use of instruments during surgery, reducing costs, and the connection methods are simple clamping methods, simple structure, easy disassembly and replacement .

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

Abstract

提出一种撑开叶片（1），包括第一卡部（11）、第二卡部（12）、固定部（13）、挡面板（14）和钩边（15）。第一卡部（11）一侧具有轴向的平切面（111）。第二卡部（12）一端与第一卡部（11）相接，另一端固定在固定部（13）上，第二卡部（12）的侧壁上设有凸起的定位块（123）。挡面板（14）一端与固定部（13）相接，另一端设有向外倾斜的钩边（15），固定部（13）和钩边（15）均置于挡面板（14）的同一侧。还提出了一种使用上述撑开叶片（1）的单向撑开装置和双向撑开装置。本撑开叶片（1）设有两个卡固结构能与不同的装置利用不同的安装方式卡接。同时，单向撑开装置和双向撑开装置使用的都是同一种撑开叶片（1），减少手术时使用的器具，降低成本，且连接方式均为简单的卡固方式，结构简单，拆装更换方便。

Description

一种撑开叶片、单向撑开装置和双向撑开装置 技术领域
本发明涉及医疗器械领域，尤其涉及一种撑开叶片、单向撑开装置和双向撑开装置。
背景技术
脊柱手术开始时，皮肤上先切下一个小的切口，利用装置将皮肤拉开，显露出脊柱。而将皮肤拉开的撑开装置一般为双向拉伸的，这使得皮肤的小切口需要用手或另一个小型的撑开装置拉伸到足够大，才能适用双向的撑开装置。如果使用手动拉开容易因拉伸力度不均匀或方向有偏而对皮肤造成损伤，如果使用另一小型的撑开装置，替换使用麻烦，且其叶片和装置固连，更换不易。
发明内容
本发明的目的是为了提供一种撑开叶片、单向撑开装置和双向撑开装置，撑开叶片的结构简单，拆装方便，既能用在单向撑开装置上，又能装在双向撑开装置上，便于单向撑开装置或双向撑开装置上撑开叶片的更换。
为了实现上述目的，本发明提出一种撑开叶片，一种撑开叶片，包括第一卡部、第二卡部、固定部、挡面板和钩边，其中：
所述第一卡部为柱状，所述第一卡部的一侧具有轴向的平切面；
所述第二卡部为柱状，所述第二卡部的一端与所述第一卡部相接，另一端固定在所述固定部上，所述第二卡部的侧壁上设有凸起的定位块；
所述挡面板一端与所述固定部相接，另一端设有向外倾斜的所述钩边，所述固定部和所述钩边均置于所述挡面板的同一侧。
进一步地，在所述的撑开叶片中，所述第一卡部顶侧面设有向所述平切面倾斜的斜切面。
进一步地，在所述的撑开叶片中，所述第一卡部和第二卡部之间设有凸环，所述第一卡部和第二卡部的直径均小与所述凸环的直径；所述第二卡部与所述固定部相接处设有凸台，所述凸台直径大于所述第二卡部的直径。
进一步地，在所述的撑开叶片中，所述挡面板呈弧拱状，拱起方向正对所述第二卡部的轴线。
进一步地，在所述的撑开叶片中，所述钩边为两个置于所述挡面板边角处的三角状钩板，两个所述钩板之间具有弧状的过渡边。
本发明提出一种单向撑开装置，使用上述的撑开叶片，所述撑开叶片与撑拉握把扣接，所述撑拉握把包括依次轴向相接扣环、连接杆和握持臂，所述撑拉握把通过所述扣环套卡在所述第一卡部上，所述扣环的内径与所述第一卡部的外径匹配，所述扣环内侧壁上设有一抵块，所述抵块卡抵在所述平切面上。
本发明提出一种双向撑开装置，使用上述的撑开叶片，包括移动装置、固定撑开臂、活动撑开臂和两个所述撑开叶片，其中：
所述移动装置包括固定座、移动齿条和旋齿钮，所述固定座具有贯穿的空腔，所述移动齿条置于所述空腔内，所述旋齿钮可旋转的固定在所述固定座上，所述旋齿钮与所述移动齿条的齿刃啮合；
所述固定撑开臂的一端设有开口槽，另一端与所述固定座相接；
所述活动撑开臂的一端设有另一个所述卡位槽，另一端与所述移动齿条相接；
所述固定撑开臂和活动撑开臂平行设置，所述固定撑开臂和活动撑开臂上分别设有的所述卡位槽的位置对应，且两个所述撑开叶片的所述钩边的弯折方 向相背，所述卡位槽夹卡在所述撑开叶片的所述第二卡部上；
所述旋齿钮转动，所述移动齿条在啮合的齿刃的推力下在所述空腔内前后移动，以调节所述固定撑开臂和活动撑开臂之间的水平距离，使分别卡固在所述固定撑开臂和活动撑开臂上的两个所述撑开叶片靠近或远离。
进一步地，在所述的双向撑开装置中，所述固定撑开臂和活动撑开臂上分别设有的所述卡位槽的开口方向向背。
进一步地，在所述的双向撑开装置中，所述卡位槽呈U形，分别为弧状的槽底和齐平的槽边；
所述槽底正中位置设有内设有与所述定位块匹配卡合的定位孔；
所述槽边的壁面上设有内陷的活动腔，所述活动腔内设有限位卡件，所述限位卡件为板状，且板面与所述槽边的壁面齐平，所述限位卡件的一端置于所述活动腔开口处的侧壁上，另一端设有凸起的抵边，所述抵边在外力的作用下于所述活动腔内、外来回摆动。
进一步地，在所述的双向撑开装置中，所述移动装置还包括锁扣件，所述锁扣件一端设有弯折的扣卡部，另一端设有按压部，所述锁扣件中间设有凸起的第一连接部，所述固定座上设有凸起的第二连接部，所述第一连接部与所述第二连接部旋转连接；当所述扣卡部下压至底端时，所述扣卡部卡嵌在所述移动齿条的相邻齿刃之间，所述移动齿条停止在所述空腔内移动；当所述按压部下压时，所述扣卡部因杠杆原理向上移动，所述移动齿条的相邻齿刃之间卡嵌的所述扣卡部移出，所述移动齿条在所述旋齿钮的调节下在所述空腔内移动。
与现有技术相比，本发明的有益效果主要体现在：提出的撑开叶片，设有两个卡固结构分别为第一卡部和第二卡部，能与不同的装置利用不同的安装方式卡接。同时，单向撑开装置和双向撑开装置使用的都是同一种撑开叶片，减 少手术时使用的器具，降低成本，且连接方式均为简单的卡固方式，结构简单，拆装更换方便。
附图说明
图1为本发明中撑开叶片的立体结构示意图；
图2为本发明中撑开叶片的主视结构示意图；
图3为本发明中单向撑开装置的结构示意图；
图4为本发明中图5中撑拉握把的扣环的放大结构示意图；
图5为本发明中双向撑开装置的结构示意图；
图6为本发明中图5的爆炸结构示意图；
图7为本发明中图6中卡位槽的放大结构示意图。
其中：撑开叶片1、第一卡部11、平切面111、斜切面112、第二卡部12、凸环121、凸台122、定位块123、固定部13、挡面板14、钩边15、钩板151、过渡边152、撑拉握把2、扣环21、抵块22、连接杆23、握持臂24、槽孔25、固定座31、空腔311、旋位腔312、第二连接部313、扣孔314、移动齿条32、旋齿钮33、锁扣件34、扣卡部341、第一连接部342、按压部343、固定撑开臂41、活动撑开臂42、卡位槽5、定位孔51、活动腔52、限位卡件53、抵边54。
具体实施方式
下面将结合示意图对本发明的撑开叶片进行更详细的描述，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。
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发明和简化描述，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，不能理解为限制本发明的具体保护范围。
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发明中的具体含义。
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至图2所示，本发明提出一种撑开叶片1，一种撑开叶片1，包括第一卡部11、第二卡部12、固定部13、挡面板14和钩边15。
具体地，如图1至图2所示，第一卡部11为柱状，第一卡部11的一侧具有轴向的平切面111，第一卡部11顶侧面设有向平切面111倾斜的斜切面112；第二卡部12为柱状，第二卡部12的一端与第一卡部11相接，另一端固定在固定部13上，第一卡部11和第二卡部12之间设有凸环121，第一卡部11和第二卡部12的直径均小与凸环121的直径，第二卡部12与固定部13相接处设有凸台122，凸台122直径大于第二卡部12的直径，即第一卡部11由凸环121进行底侧的限位，第二卡部12由凸环121和凸台122结合限位。第二卡部12的侧壁上设有凸起的定位块123，方便第二卡部12定位卡固，避免安装角度的错位。
同时，如图1至图2所示，挡面板14一端与固定部13相接，另一端设有向外倾斜的钩边15，固定部13和钩边15均置于挡面板14的同一侧，钩边15的设计方便皮肤的钩卡，避免皮肤滑落。挡面板14呈弧拱状，拱起方向正对第二卡部12的轴线，弧拱状的挡面板14能更好与皮肤表面贴合，避免平直面板的棱边与皮肤接触，造成皮肤而成损伤。钩边15为两个置于挡面板14边角处的三角状钩板151，两个钩板151之间具有弧状的过渡边152。
如图3至图4所示，本发明提出一种单向撑开装置，包括撑开叶片1和扣接在撑开叶片1上的撑拉握把2，撑拉握把2包括依次轴向相接扣环21、连接杆23和握持臂24，撑拉握把2通过扣环21套卡在第一卡部11上，扣环21的内径与第一卡部11的外径匹配，扣环21内侧壁上设有一抵块22，抵块22卡抵在平切面111上。握持臂24与连接杆23相接的一端直径小于另一端直径，握 持臂24上设有多个槽孔25。撑拉握把2通过扣环21套设在第一卡部11上时，斜切面112正对抵块22，方便抵块22下压正好抵在平切面111上，扣环21的底侧面压至凸环121上。其中，抵块22置于扣环21的底侧，方便在套卡时抵块22最先与第一卡部11接触，最终抵块22紧贴第一卡部11的底侧边，避免扣环21轻易松脱。
如图5至图7所示，本发明提出一种双向撑开装置，包括移动装置、固定撑开臂41、活动撑开臂42和两个撑开叶片1。
具体地，如图5至图6所示，移动装置包括固定座31、移动齿条32和旋齿钮33，固定座31表面设有通至空腔311内的扣孔314，固定座31具有贯穿的空腔311，移动齿条32置于空腔311内，旋齿钮33可旋转的固定在固定座31上，旋齿钮33与移动齿条32的齿刃啮合。同时，固定座31上设有贯穿的圆柱状旋位腔312，所述旋位腔312毗邻空腔311且通连，旋位腔312的轴线方向与空腔311的轴线方向互相垂直，旋位腔312内设有旋齿钮33，方便旋齿钮33与移动齿条32齿刃啮合。
同时，如图5至图7所示，固定撑开臂41的一端设有开口槽，另一端与固定座31相接；活动撑开臂42的一端设有另一个卡位槽5，另一端与移动齿条32相接；固定撑开臂41和活动撑开臂42平行设置，固定撑开臂41和活动撑开臂42上分别设有的卡位槽5的位置对应，且两个撑开叶片1的钩边15的弯折方向相背，卡位槽5夹卡在撑开叶片1的第二卡部12上；固定撑开臂41和活动撑开臂42上分别设有的卡位槽5的开口方向向背。进一步地，固定撑开臂41和活动撑开臂42均为多段式连接臂，可根据实际需求进行加段延长，且多段式连接臂能通过连接口翻折转动，方便折叠收纳
综上，如图5至图6所示，旋齿钮33转动，移动齿条32在啮合的齿刃的 推力下在空腔311内前后移动，以调节固定撑开臂41和活动撑开臂42之间的水平距离，使分别卡固在固定撑开臂41和活动撑开臂42上的两个撑开叶片1靠近或远离。
具体地，如图7所示，卡位槽5呈U形，分别为弧状的槽底和齐平的槽边；槽底正中位置设有内设有与定位块123匹配卡合的定位孔51；槽边的壁面上设有内陷的活动腔52，活动腔52内设有限位卡件53，限位卡件53为板状，且板面与槽边的壁面齐平，限位卡件53的一端置于活动腔52开口处的侧壁上，另一端设有凸起的抵边54，抵边54在外力的作用下于活动腔52内、外来回摆动。
进一步地，如图5至图6所示，移动装置还包括锁扣件34，锁扣件34一端设有弯折的扣卡部341，另一端设有按压部343，锁扣件34中间设有凸起的第一连接部342，固定座31上设有凸起的第二连接部313，第一连接部342与第二连接部313旋转连接；当扣卡部341下压至底端时，扣卡部341卡嵌在移动齿条32的相邻齿刃之间，移动齿条32停止在空腔311内移动；当按压部343下压时，扣卡部341因杠杆原理向上移动，移动齿条32的相邻齿刃之间卡嵌的扣卡部341移出，移动齿条32在旋齿钮33的调节下在空腔311内移动。锁扣件34的扣卡部341正对固定座31表面的扣孔314，移动齿条32的齿刃由扣孔314暴露在固定座31外，方便锁扣件34的扣卡部341进行扣卡。
手术中具体使用情况如下：皮肤划开后一个小切口，使用单向撑开装置将切口拉开，拉开到适当程度后替换使用双向撑开装置继续平稳扩张切口区域。
综上，在本实施例中，提出的撑开叶片，设有两个卡固结构分别为第一卡部和第二卡部，能与不同的装置利用不同的安装方式卡接。同时，单向撑开装置和双向撑开装置使用的都是同一种撑开叶片，减少手术时使用的器具，降低成本，且连接方式均为简单的卡固方式，结构简单，拆装更换方便。
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 (10)

  1. 一种撑开叶片，其特征在于，包括第一卡部、第二卡部、固定部、挡面板和钩边，其中：
    所述第一卡部为柱状，所述第一卡部的一侧具有轴向的平切面；
    所述第二卡部为柱状，所述第二卡部的一端与所述第一卡部相接，另一端固定在所述固定部上，所述第二卡部的侧壁上设有凸起的定位块；
    所述挡面板一端与所述固定部相接，另一端设有向外倾斜的所述钩边，所述固定部和所述钩边均置于所述挡面板的同一侧。
  2. 根据权利要求1所述的撑开叶片，其特征在于，所述第一卡部顶侧面设有向所述平切面倾斜的斜切面。
  3. 根据权利要求1所述的撑开叶片，其特征在于，所述第一卡部和第二卡部之间设有凸环，所述第一卡部和第二卡部的直径均小与所述凸环的直径；所述第二卡部与所述固定部相接处设有凸台，所述凸台直径大于所述第二卡部的直径。
  4. 根据权利要求1所述的撑开叶片，其特征在于，所述挡面板呈弧拱状，拱起方向正对所述第二卡部的轴线。
  5. 根据权利要求1所述的撑开叶片，其特征在于，所述钩边为两个置于所述挡面板边角处的三角状钩板，两个所述钩板之间具有弧状的过渡边。
  6. 一种单向撑开装置，使用如权利要求1至5中任意一项所述的撑开叶片，其特征在于，所述撑开叶片与撑拉握把扣接，所述撑拉握把包括依次轴向相接扣环、连接杆和握持臂，所述撑拉握把通过所述扣环套卡在所述第一卡部上，所述扣环的内径与所述第一卡部的外径匹配，所述扣环内侧壁上设有一抵块，所述抵块卡抵在所述平切面上。
  7. 一种双向撑开装置，使用如权利要求1至5中任意一项所述的撑开叶片， 其特征在于，包括移动装置、固定撑开臂、活动撑开臂和两个所述撑开叶片，其中：
    所述移动装置包括固定座、移动齿条和旋齿钮，所述固定座具有贯穿的空腔，所述移动齿条置于所述空腔内，所述旋齿钮可旋转的固定在所述固定座上，所述旋齿钮与所述移动齿条的齿刃啮合；
    所述固定撑开臂的一端设有开口槽，另一端与所述固定座相接；
    所述活动撑开臂的一端设有另一个所述卡位槽，另一端与所述移动齿条相接；
    所述固定撑开臂和活动撑开臂平行设置，所述固定撑开臂和活动撑开臂上分别设有的所述卡位槽的位置对应，且两个所述撑开叶片的所述钩边的弯折方向相背，所述卡位槽夹卡在所述撑开叶片的所述第二卡部上；
    所述旋齿钮转动，所述移动齿条在啮合的齿刃的推力下在所述空腔内前后移动，以调节所述固定撑开臂和活动撑开臂之间的水平距离，使分别卡固在所述固定撑开臂和活动撑开臂上的两个所述撑开叶片靠近或远离。
  8. 根据权利要求7所述的双向撑开装置，其特征在于，所述固定撑开臂和活动撑开臂上分别设有的所述卡位槽的开口方向向背。
  9. 根据权利要求8所述的双向撑开装置，其特征在于，所述卡位槽呈U形，分别为弧状的槽底和齐平的槽边；
    所述槽底正中位置设有内设有与所述定位块匹配卡合的定位孔；
    所述槽边的壁面上设有内陷的活动腔，所述活动腔内设有限位卡件，所述限位卡件为板状，且板面与所述槽边的壁面齐平，所述限位卡件的一端置于所述活动腔开口处的侧壁上，另一端设有凸起的抵边，所述抵边在外力的作用下于所述活动腔内、外来回摆动。
  10. 根据权利要求7所述的双向撑开装置，其特征在于，所述移动装置还包括锁扣件，所述锁扣件一端设有弯折的扣卡部，另一端设有按压部，所述锁扣件中间设有凸起的第一连接部，所述固定座上设有凸起的第二连接部，所述第一连接部与所述第二连接部旋转连接；当所述扣卡部下压至底端时，所述扣卡部卡嵌在所述移动齿条的相邻齿刃之间，所述移动齿条停止在所述空腔内移动；当所述按压部下压时，所述扣卡部因杠杆原理向上移动，所述移动齿条的相邻齿刃之间卡嵌的所述扣卡部移出，所述移动齿条在所述旋齿钮的调节下在所述空腔内移动。
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EP3705053A1 (en) 2020-09-09
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US11045180B2 (en) 2021-06-29
EP3705053B1 (en) 2024-02-28
US20200367874A1 (en) 2020-11-26
EP3705053A4 (en) 2021-07-28

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