CN203506775U - Turnover retractor - Google Patents

Turnover retractor Download PDF

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Publication number
CN203506775U
CN203506775U CN 201320499207 CN201320499207U CN203506775U CN 203506775 U CN203506775 U CN 203506775U CN 201320499207 CN201320499207 CN 201320499207 CN 201320499207 U CN201320499207 U CN 201320499207U CN 203506775 U CN203506775 U CN 203506775U
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China
Prior art keywords
bearing
arm
fixed
movable arm
beads
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CN 201320499207
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Chinese (zh)
Inventor
刘鸿箫
顾承雄
于洋
方颖
吴震
宋伟
孙东
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北京瑞克斡医疗科技有限公司
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Priority to CN 201320499207 priority Critical patent/CN203506775U/en
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Publication of CN203506775U publication Critical patent/CN203506775U/en

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Abstract

The utility model discloses a turnover retractor. Bearings are arranged on hinge pins in a sleeve mode and located on the two sides of a fixed arm blade connecting lug and a movable arm blade connecting lug, a fixed arm blade is connected with a fixed arm in a pivoting mode through one hinge pin, and a movable arm blade is connected with a movable arm in a pivoting mode through the other hinge pin. Each bearing comprises a bearing gasket and bearing beads. A pin hole is formed in the center of each bearing gasket and used for penetrating one hinge pin, square holes are formed in the periphery of each bearing gasket and used for embedding the bearing beads, first symmetrical axes, passing through the centers of the square holes, of the square holes are arranged in the radial direction of the pin holes, and the bearing beads are embedded into the square holes in the direction where the center lines of the bearing beads are basically in accordance with the first axles. The diameter of the bearing beads is larger than the thickness of the bearing gaskets, so that the surfaces of the bearing beads directly make contact with the end faces of the corresponding connecting lugs. The turnover retractor has the advantages of rotating smoothly and being safe in usage.

Description

—种可翻转牵开器技术领域 - reversible species retractor spreaders Field

[0001] 本实用新型涉及一种心外科手术中应用的手术器具,尤其涉及一种牵开器。 [0001] The present invention relates to a surgical instrument cardiac surgery applications, and particularly to a retractor.

背景技术 Background technique

[0002] 如图1所示,可翻转牵开器通常包括齿条板、可沿齿条板滑动的活动臂Ib和与齿条板相固接的固定臂la,其中的活动臂Ib通过旋转轴与齿板条的配合将活动臂Ib固定在调节后的位置上,使用者可通过扳动与旋转轴配合使用的旋转手柄实现活动臂Ib的锁定和解锁,该活动臂Ib和固定臂Ia分别设置有可相对各自转动的活动臂叶片2b和固定臂叶片2a,具体为:活动臂叶片2b和固定臂叶片2a各通过一根沿齿条板方向设置的销轴分别与活动臂Ib和固定臂Ia枢接。 [0002] As shown, the retractor 1 can be flipped typically comprises a rack plate slidably movable arm along the rack plate and the rack plate relative Ib affixed stationary arm La, wherein the movable arm by rotating Ib with the axis of the tooth strip is fixed to the movable arm Ib adjusted position, the user can rotate the handle by pulling the rotary shaft used in conjunction with the movable arm Ib achieve locking and unlocking, the movable arm and fixed arm Ia Ib are each provided with a relatively rotatable movable arm 2b and the fixed blade paddles 2a, specifically: a pin fixed to the movable arm and the blade 2b of each arm blade 2a is provided by a rack plate in the directions of the active arm and the stationary Ib Ia pivot arm. 现有的这种枢转结构存在旋转活动不畅、阻涩甚至转不动等情况,实际使用效果较差。 The presence of such a conventional rotary pivoting structure poor activity, barrier cases even astringent not turn like poor practical results. 实用新型内容 SUMMARY

[0003] 本实用新型的目的在于克服现有技术中的不足,提供一种可灵活转动的可翻转牵开器。 [0003] The object of the present invention is to overcome the disadvantages of the prior art, to provide a reversible rotatable flexible retractor.

[0004] 本实用新型采用的技术方案为:一种可翻转牵开器,包括固定臂、活动臂、固定臂叶片和活动臂叶片,所述固定臂的自由端及活动臂的自由端分别设置一对在齿条板方向上相对的固定臂和活动臂连接耳,所述固定臂叶片和活动臂叶片上分别设置有固定臂和活动臂叶片连接耳,所述固定臂和活动臂叶片连接耳分别嵌入一对固定臂连接耳和一对活动臂连接耳之间,并通过第一销轴穿过一对固定臂连接耳和固定臂叶片连接耳实现固定臂叶片与固定臂间的枢接,及通过第二销轴穿过一对活动臂连接耳和活动臂叶片连接耳实现活动臂叶片与活动臂间的枢接; [0004] The technical solution of the present invention is employed: A reversible retractor, comprising a fixed arm, the movable arm, the movable arm and fixed arm blade leaf, the free end of the free end of said movable arm and fixed arm are provided a pair of fixed and moveable arms in the opposite direction of the connecting lug rack plate, respectively provided on said fixed arm and the movable arm vane blade and moveable arms with fixed blades engaging lugs, the fixed and moveable arms blade engaging lugs a pair of fixed arms are fitted and connected to a pair of movable arms lugs the connection between the ear and the ear and connected to the fixed arm pivoting blade engaging lugs achieved between stationary blades and the fixed arm through a pair of arms fixed arm by a first pin, and a connecting lug and the movable arm pivoting blade engaging lugs achieved between the movable arm and the blade moving arm through a pair of movable arm by a second pin;

[0005] 所述第一销轴上套设有两个分别夹设于固定臂叶片连接耳的两个端面和与各自相对的固定臂连接耳的内端面之间的轴承,所述第二销轴上套设有另外两个分别夹设于活动臂叶片连接耳的两个端面和与各自相对的活动臂连接耳的内端面之间的轴承; [0005] The first pin is provided on the bearing sleeve are interposed between the two blades are connected to the fixed arm and the two end faces of the lug connected to a fixed arm of the respective opposite end faces of the ear, said second pin Further shaft bearing sleeve is provided between the two end faces are interposed two blades are connected to the movable arm and the active arm of the ear opposite the respective connection end faces of the inner ear;

[0006] 所述轴承包括轴承垫,所述轴承垫的中心设置有供对应的销轴穿过的轴孔,所述轴承垫在轴孔的外周设置有多个贯穿轴承垫的方孔,所述方孔的过方孔中心的第一对称轴线沿轴孔的径向设置,所述轴承还包括设置于各方孔内的圆柱形的轴承珠,所述轴承珠以其中心线与对应方孔的第一轴线基本一致的方向嵌入方孔中,所述轴承珠的直径大于轴承垫的厚度,使轴承珠的表面与对应的连接耳的端面直接接触,所述轴承的材质为医用级不锈钢。 [0006] The bearing includes a bearing pad, the bearing pad is provided with a central axial bore therethrough for the corresponding pin, the bearing pads around the shaft through-hole is provided with a plurality of square holes of the bearing pad, the radially through the center of the square hole of said first symmetric square hole along the axis of the bore axis, said bearing further comprising a cylindrical bore disposed in the bearing parties beads, the beads bearing centerline and the counterparts thereof the first axis direction of the hole substantially uniform square hole fitted in the bearing bead diameter greater than the thickness of the bearing pad, the end face of the connecting lug corresponding to the bearing surface of the beads in direct contact with the bearing material of a medical grade stainless steel .

[0007] 优选的是,所述轴承珠的直径与轴承垫的厚度的差为0.05mm±0.01mm。 [0007] Preferably, the difference between the thickness and the diameter of the bearing pads of the bearing bead is 0.05mm ± 0.01mm.

[0008] 优选的是,所述轴承垫的各方孔的中心位于与轴孔同心的同一圆周上。 [0008] Preferably, the parties to the central hole of the bearing pads are located on the same circumference concentric with the shaft hole.

[0009] 优选的是,各方孔围绕轴孔的中心均匀分布。 [0009] Preferably, evenly distributed around the central shaft hole bore parties.

[0010] 本实用新型的有益效果为:本实用新型通过分别在叶片连接耳的两侧加设轴承克服了现有可翻转牵开器存在的转动不畅的问题,另外,由于采用了轴承垫设计,当轴承珠磨损使直径变小后,轴承珠也不会脱落出来,这样可以避免轴承珠落入手术区域内,而且轴承珠直径变小后会与轴承垫同时着力,致使助力加大,这样可以明确的提示医生该器械应进行维修,从而可尽量避免该器械在手术中出现问题,降低了使用风险。 [0010] The beneficial effects of the present invention is: respectively connected to two opposite sides of the ear set bearing can overcome the existing problems of poor rotatable flip open by the retractor blades of the present invention, further, the use of the bearing pads design, when worn bearing bead diameter becomes smaller, the bearing beads will not fall out, to avoid bearing beads fall within the surgical field, and after bearing bead diameter smaller at the same time and will focus on the bearing pads, resulting in increased power, this clearly prompts the physician to the instrument should be repaired in order to avoid problems that can occur during surgery instruments, reducing the use of risk.

附图说明 BRIEF DESCRIPTION

[0011] 图1为根据现有可翻转牵开器的局部结构示意图; [0011] FIG. 1 is a schematic partial structure according to the prior invertible retractor;

[0012] 图2为根据本实用新型所述可翻转牵开器的一种实施结构的主视图; [0012] FIG. 2 is a front view of the retractor of an embodiment of the present invention, the structure of the reversible;

[0013] 图3图2所示可翻转牵开器的分解示意图; [0013] Figures 2 and 3 may be inverted exploded view of the retractor shown;

[0014] 图4为图2中固定臂部分的局部结构示意图; [0014] FIG. 4 is a partial schematic view of the fixed arm portion in FIG 2;

[0015] 图5为图4中AA向的剖视图; [0015] FIG. 5 is a sectional view taken along line AA of Figure 4;

[0016] 图6为图2和3中的轴承的分解示意图。 [0016] FIG. 6 is an exploded view of the bearing of FIG. 2 and 3.

具体实施方式 Detailed ways

[0017] 下面结合附图和具体实施方式对本实用新型做进一步详细的说明: [0017] The following detailed description of the present invention further in conjunction with the accompanying drawings and specific embodiments:

[0018] 如图2和3所示,本实用新型的可翻转牵开器包括固定臂la、活动臂lb、固定臂叶片2a和活动臂叶片2b,该固定臂Ia固定安装于齿条板3上,活动臂Ib可沿齿条板3滑动,其中的活动臂Ib通过旋转轴4与齿板条3的配合将活动臂Ib固定在调节后的位置上,使用者可通过扳动与旋转轴4配合使用的旋转手柄5实现活动臂Ib的锁定和解锁。 [0018] Figures 2 and 3, the present invention comprises a reversible retractor La fixed arm, the movable arm LB, the fixed arm and the movable arm blade 2a the blade 2B, which is fixedly mounted to the fixed arm Ia rack plate 3 on the movable arm 3 Ib can slide along the rack plate, wherein the movable arm Ib by fitting the rotary shaft 4 and the teeth of the slat 3 is fixed to the movable arm Ib adjusted position on the user by pulling the rotary shaft 4 in conjunction with rotation of the handle of the movable arm 5 to achieve locking and unlocking Ib.

[0019] 如图2至6所示,固定臂Ia的自由端及活动臂Ib的自由端分别设置一对在齿条板3方向上相对的固定臂连接耳Ila和活动臂连接耳11b,固定臂叶片2a和活动臂叶片2b上分别设置有固定臂叶片连接耳21a和活动臂叶片连接耳21b,固定臂和活动臂叶片连接耳21a、21b分别嵌入一对固定臂连接耳Ila和一对活动臂连接耳Ilb之间,并通过第一销轴6a穿过一对固定臂连接耳Ila和固定臂叶片连接耳21a实现固定臂叶片2a与固定臂Ia间的枢接,及通过第二销轴6b穿过一对活动臂连接耳Ilb和活动臂叶片连接耳21b实现活动臂叶片2b与活动臂Ib间的枢接;第一销轴6a上套设有两个分别夹设于固定臂叶片连接耳21a的两个端面和与各自相对的固定臂连接耳Ila的内端面之间的轴承7,同理,第二销轴6b上套设有另外两个分别夹设于活动臂叶片连接耳21b的两个端面和与各自相对的活动臂连接耳Ilb的 [0019] 2 to 6, the free end of the free end of the movable arm and fixed arm Ia, Ib, are provided a pair of arms fixed to opposite direction of the rack plate 3 in the connecting lug Ila and moveable arm engaging lugs 11b, fixed are provided on the arm blade 2a and the movable arm blades 2b fixed paddles engaging lugs 21a and the movable arm blade engaging lugs 21b, fixed and moveable arms blade engaging lugs 21a, 21b are fitted in a pair of fixed arms engaging lugs Ila and a pair of movable arm is connected between the ears Ilb, Ila and ears and connected to the fixed arm blades are connected through a pair of lugs fixed arm by a first pin 6a 21a to achieve a fixed blade 2a arm pivotally connected between the fixed arm and Ia, and the second pin 6b is connected through a pair of movable arm and the movable arm blades Ilb ear ear 21b to achieve pivotal connection between the vane 2b of the movable arm and the movable arm Ib; a first pin 6a provided on the sleeve are interposed two fixing arm connected to the blade bearing 7. Similarly, the second sleeve pin 6b between the two end faces 21a and the connecting lugs and the lugs fixed arm Ila respective opposite end faces of the other two is provided to the movable arm interposed blade engaging lugs 21b the two opposing end surfaces and a movable arm connected to a respective ear of Ilb 端面之间的轴承7。 Between the end surface of the bearing 7.

[0020] 如图5和6所示,该轴承7采用医用级不锈钢制成,其包括轴承垫71和轴承珠72,轴承垫71的中心设置有供对应的销轴穿过的轴孔711,轴承垫71在轴孔711的外周设置有多个贯穿轴承垫71的用于安装轴承珠72的方孔712,本实施例中共设置六个方孔712,该方孔712的过方孔中心的第一轴线沿轴孔711的径向设置,以使嵌入其内的轴承珠72可与叶片同步转动,该轴承珠72以中心线与对应方孔712的第一轴线基本一致的方向嵌入方孔712中,此处所指的基本一致为同轴度公差在q>0.05mm范围内,所述轴承珠72的直径大于轴承垫71的厚度,使轴承珠72的表面可与对应的连接耳的端面直接接触,进而将滑动摩擦改为滚动摩擦。 As shown in [0020] Figures 5 and 6, the bearing 7 using medical grade stainless steel, which includes a bearing pad 71 and the bearing bead 72, the bearing pads 71 ​​is provided with a central hole 711 corresponding to the shaft pin passes, bearing pad 71 provided on the outer periphery of the shaft hole 711 through a plurality of bearing pads 71 ​​for mounting a bearing 712 beads square hole 72, the present embodiment is provided CCP six square hole 712 through the center of the square hole 712 in the square hole the first shaft hole 711 along the axis disposed radially, such that the bearing bead embedded therein can be synchronous rotation with the blade 72, the bearing bead 72 in a substantially uniform direction of the first axis corresponding to the center line of the square hole 712 of the square hole fitted 712, referred to herein as a substantially uniform within tolerance of concentricity q> 0.05mm range, the diameter of the bearing bead 72 greater than the thickness 71 of the bearing pads so that the bearing surface of the bead 72 may be connected to the corresponding ear direct contact with the end face, and thus the sliding friction to rolling friction.

[0021] 以上轴承珠的直径与轴承垫的厚度的差优选为0.05mm±0.0lmm,差值过大一方面会影响美观,另一方面会使轴承易藏污垢,差值过小转动效果相对差一些。 [0021] than the diameter of the beads bearing the bearing pads difference in thickness is preferably 0.05mm ± 0.0lmm, on the one hand too large a difference will affect the appearance, on the other hand is easy to make the bearing reservoirs dirt, the difference is too small relative to the rotation effect Worse.

[0022] 另外,轴承垫71的各方孔712的中心可位于与轴孔711同心的同一圆周上,这样可使轴承7的受力更加合理。 Parties central bore 712 [0022] Further, the bearing pad 71 may be located on the same circumference concentric with the shaft hole 711, so that the bearing 7 can force more reasonable. 如使各方孔712围绕轴孔711的中心均匀分布,则可使受力更加均匀。 The holes are evenly distributed so that the parties about the central axis 712 of the bore 711, the force will enable more uniform.

[0023] 综上所述仅为本实用新型较佳的实施例,并非用来限定本实用新型的实施范围。 [0023] In summary the present invention is only the preferred embodiments do not limit the scope of the present invention. 即凡依本实用新型申请专利范围的内容所作的等效变化及修饰,皆应属于本实用新型的技术范畴。 I.e. all equivalent variations and modifications under this patent disclosure range of applications by, all should belong to the technical scope of the present invention.

Claims (4)

1.一种可翻转牵开器,包括固定臂、活动臂、固定臂叶片和活动臂叶片,所述固定臂的自由端及活动臂的自由端分别设置一对在齿条板方向上相对的固定臂和活动臂连接耳,所述固定臂叶片和活动臂叶片上分别设置有固定臂和活动臂叶片连接耳,所述固定臂和活动臂叶片连接耳分别嵌入一对固定臂连接耳和一对活动臂连接耳之间,并通过第一销轴穿过一对固定臂连接耳和固定臂叶片连接耳实现固定臂叶片与固定臂间的枢接,及通过第二销轴穿过一对活动臂连接耳和活动臂叶片连接耳实现活动臂叶片与活动臂间的枢接;其特征在于: 所述第一销轴上套设有两个分别夹设于固定臂叶片连接耳的两个端面和与各自相对的固定臂连接耳的内端面之间的轴承,所述第二销轴上套设有另外两个分别夹设于活动臂叶片连接耳的两个端面和与各自相对的活动臂连接耳 1. A reversible retractor, comprising a fixed arm, the movable arm, the movable arm and fixed arm blade leaf, the free end of the free end of said movable arm and fixed arm are respectively provided on the pair of rack plate in the opposite direction the fixed and moveable arms engaging lugs are provided on the stationary blade arm and the movable arm has a fixed blade and moveable arms engaging lugs blades, the blades fixed and moveable arms connecting lug fitted a pair of fixed arms and a connecting lug, respectively the connection between the lugs on the movable arm and fixed arm connected to the ear and ear achieve pivotal blades are connected between the fixed arm and the fixed blade arm through a pair of fixed arms through a first pin and the second pin through a pair of engaging lugs moving arm and movable arm pivoting blade engaging lugs achieved between the movable arm and the movable arm blades; wherein: said first upper pin is provided with two sets of fixed arm are interposed two blade engaging lugs bearing between the end and the fixed arm connected to respective opposite end faces of the inner ear, the second pin provided on the other two sets of interposed connecting ear blades moveable arm and two end faces opposite to the respective activities arm connecting lug 的内端面之间的轴承; 所述轴承包括轴承垫,所述轴承垫的中心设置有供对应的销轴穿过的轴孔,所述轴承垫在轴孔的外周设置有多个贯穿轴承垫的方孔,所述方孔的过方孔中心的第一对称轴线沿轴孔的径向设置,所述轴承还包括设置于各方孔内的圆柱形的轴承珠,所述轴承珠以其中心线与对应方孔的第一轴线基本一致的方向嵌入方孔中,所述轴承珠的直径大于轴承垫的厚度,使轴承珠的表面与对应的连接耳的端面直接接触,所述轴承的材质为医用级不锈钢。 Bearing between the inner end surface; the bearing includes a bearing pad, the bearing pad is provided with a central hole corresponding to the shaft through a pin, the bearing pad in the outer periphery of the shaft hole of the bearing pads provided with a plurality of through- square hole, square hole radially through the center of the square hole of the first shaft hole along the axis of symmetry, further comprising a bearing disposed in the bore of the cylindrical bearing parties beads, the beads bearing its a first centerline axis and a substantially uniform direction corresponding square hole fitted in the square hole, the bearing bead diameter is greater than the thickness of the bearing pads, the end surfaces in direct contact with the corresponding connection lug surface bearing the beads, the bearing made of medical grade stainless steel.
2.根据权利要求1所述的可翻转牵开器,其特征在于:所述轴承珠的直径与轴承垫的厚度的差为0.05mm±0.01mm。 According to claim 1, said reversible retractor, characterized in that: said differential bearing beads with a diameter of the bearing pad thickness is 0.05mm ± 0.01mm.
3.根据权利要求1或2所述的可翻开牵开器,其特征在于:所述轴承垫的各方孔的中心位于与轴孔同心的同一圆周上。 According to claim 1 or 2, the retractor may be open, as claimed in claim wherein: the bearing mat parties hole center is located on the same circumference concentric with the shaft hole.
4.根据权利要求1或2所述的可翻开牵开器,其特征在于:各方孔围绕轴孔的中心均匀分布。 The retractor can be opened to claim 1 or 2, characterized in that claim: parties evenly distributed around the central hole of the shaft hole.
CN 201320499207 2013-08-15 2013-08-15 Turnover retractor CN203506775U (en)

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US9066701B1 (en) 2012-02-06 2015-06-30 Nuvasive, Inc. Systems and methods for performing neurophysiologic monitoring during spine surgery
US9486133B2 (en) 2010-08-23 2016-11-08 Nuvasive, Inc. Surgical access system and related methods
US9655505B1 (en) 2012-02-06 2017-05-23 Nuvasive, Inc. Systems and methods for performing neurophysiologic monitoring during spine surgery
US9757067B1 (en) 2012-11-09 2017-09-12 Nuvasive, Inc. Systems and methods for performing neurophysiologic monitoring during spine surgery
US9795370B2 (en) 2014-08-13 2017-10-24 Nuvasive, Inc. Minimally disruptive retractor and associated methods for spinal surgery
US9795367B1 (en) 2003-10-17 2017-10-24 Nuvasive, Inc. Surgical access system and related methods

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US9795367B1 (en) 2003-10-17 2017-10-24 Nuvasive, Inc. Surgical access system and related methods
US9924859B2 (en) 2010-08-23 2018-03-27 Nuvasive, Inc. Surgical access system and related methods
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