CN104323806A - Operation retractor provided with multi-claw adjusting function - Google Patents

Operation retractor provided with multi-claw adjusting function Download PDF

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Publication number
CN104323806A
CN104323806A CN201410588520.9A CN201410588520A CN104323806A CN 104323806 A CN104323806 A CN 104323806A CN 201410588520 A CN201410588520 A CN 201410588520A CN 104323806 A CN104323806 A CN 104323806A
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CN
China
Prior art keywords
retractor
worm
pawl
ratchet
pivoting support
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CN201410588520.9A
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Chinese (zh)
Inventor
刘广波
陈国勇
孙建军
汤高枫
赵会博
王维伟
朱少功
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郑州人民医院
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Priority to CN201410588520.9A priority Critical patent/CN104323806A/en
Publication of CN104323806A publication Critical patent/CN104323806A/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0206Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements

Abstract

The invention relates to a medical auxiliary tool, in particular to an operation retractor provided with a multi-claw adjusting function. The operation retractor is fixed on an operation table through a suspending frame, a rotating hand wheel is rotated by a hand to drive a worm to rotate, the worm rotates, moves downward and is in meshing transmission with a worm wheel, the worm wheel and a rocking arm are driven to drive retractor claws to move together, a ratchet wheel arranged at the upper end of each retractor claw and a ratchet claw arranged at the lower part of the rocking arm are meshed, the ratchet claw provides a restoring force through a reset spring and is still located in a tooth groove of the ratchet wheel, and the ratchet claw is clamped inside the tooth groove of the ratchet wheel and is locked. More than four retractor claws evenly distributed inside a hinged supporting base frame can realize the synchronous unfolding or synchronous contracting, the operation is simple, and the operation view can be effectively exposed. Meanwhile, the supporting inclined angle of any retractor claw can be manually and independently adjusted according to needs, all tissues can be conveniently and effectively retracted during an operation, and the adjusting is flexible.

Description

—种具有多爪调节功能的手术牵开器 - kind having a plurality of jaw adjustment function surgical retractor

技术领域 FIELD

[0001] 本发明涉及一种医疗辅助工具,具体涉及一种具有多爪调节功能的手术牵开器。 [0001] The present invention relates to a medical aid, particularly to a prong having a regulatory function surgical retractor.

背景技术 Background technique

[0002] 牵开器又称拉钩,用以牵开组织,显露手术野,便于探查和操作,可分为手持拉钩和自动拉钩两类。 [0002] Also known retractor retractor to retract tissue to expose the surgical field and facilitates probing operation can be divided into two types of hand-held retractor and automatic retractor. 有各种不同形状和大小的规格,可根据手术需要选择合适的拉钩。 There are a variety of different shapes and sizes of the specifications, you may be required to select the appropriate surgical retractors. 自动拉钩为自行固定牵开器,也称自持性拉钩,如二叶式、三叶式自动牵开器,腹腔、胸腔、盆腔、腰部、颅脑等部位的手术均可使用。 Automatic self-retractor is fixed to the retractor, retractor also known as self-sustaining, such as bicuspid, clover automatic retractor, abdominal, thoracic surgical site, pelvic, lumbar, brain and the like can be used. 全方位手术牵开器是一种新型自动拉钩,能充分显露手术野,可节省1-2名助手,并明显减轻手术助手的劳动强度,适用于上腹部、盆腔及腹膜后所有手术,如肝肾移植术、全胃切除术、胰十二指肠切除术、脾切除术、肝肿瘤切除术、贲门周围血管离断术及膀胱前列腺手术等。 A full range of surgical retractor is a new automatic retractors, can fully reveal the surgical field, can save 1-2 assistants, and significantly reduce labor intensity surgical assistant for the abdomen, pelvic peritoneum and all surgery, such as the liver renal transplantation, total gastrectomy, pancreatoduodenectomy, splenectomy, liver tumor resection, vascular pericardial prostate and bladder amputation surgery.

[0003] 使用拉钓时,应掌握正确的持钩方法和使用方法,拉钩下方应衬垫盐水纱布垫或湿治疗巾,特别是在使用腹腔拉钩时更应注意。 [0003] When using pull catch, should have the correct support and methods for using the hook, the lower retractor liner should wet saline gauze towel or pad, particularly to be noted that when using more abdominal retractors. 敷料衬垫可以帮助显露手术野,保护周围器官及组织免受损伤。 Dressing pad can help expose the surgical field, protect the surrounding organs and tissues from damage. 使用手持拉钩时,牵引动作应轻柔,避免用力过猛,根据手术的意图及手术进程及时调整拉钩的位置,以达到最佳显露。 When using hand-held retractor, pulling action should be gentle, avoid too much force, to adjust the position of retractor according to the intention of surgery and surgical processes to achieve optimal revealed. 但现有的牵开器,结构复杂占据空间大,操作不方便,使用麻烦,不便于探查与操作,不能够有效显露手术野。 However, the conventional retractor, complex structures occupy a large space, operation is inconvenient, cumbersome to use, inconvenient probing operation, can not be effectively expose the surgical field.

发明内容 SUMMARY

[0004] 为克服上述缺陷,本发明的目的即在于提供一种操作方便、能有效显露手术野的具有多爪调节功能的手术牵开器。 [0004] In order to overcome the above drawbacks, i.e., that the object of the present invention to provide an easy to operate, can effectively reveal prong adjustment function having a surgical retractor surgical field.

[0005] 本发明的目的是通过以下技术方案来实现的: [0005] The object of the present invention is achieved by the following technical solution:

[0006] 本发明的一种具有多爪调节功能的手术牵开器,包括:悬吊架,旋转手轮,蜗杆,通孔,导向螺母,铰接支座架,铰接支座,蜗轮,摆臂,摆臂关节销轴,棘爪,复位扭簧,棘轮,棘爪销轴,牵开器爪;所述悬吊架呈倒立U形状,所述悬吊架下部与铰接支座架固定连接,所述铰接支座架中部开设有通孔,所述导向螺母对应通孔位置固定安装在铰接支座架上,所述蜗杆依次竖直安装在所述导向螺母、通孔内,所述旋转手轮设置在悬吊架内并与蜗杆的上端固定连接; [0006] A pawl according to the present invention having a multi-function surgical adjustment retractor, comprising: a suspension frame, the handwheel, a worm, a through hole, the guide nut, pivoting support frame, the pivoting support, the worm wheel, a swing arm swing arm joint pin, the pawl reset torsion spring, a ratchet, a pawl pin, the retractor pawl; the form of an inverted U-shaped suspension frame, the suspension frame and a lower hinge support bracket fixedly connected, the pivoting support frame defines a central through-hole, the through hole corresponding to the position of the guide nut fixedly mounted in the pivoting support frame, said worm in turn mounted on the vertical guide nut, the through-hole, said rotary hand wheel suspension holder disposed within and fixed to an upper end connected to the worm;

[0007] 所述铰接支座的数量为四个以上,以蜗杆为中心均布固定在铰接支座架内;所述铰接支座包括:平行设置的两根肋板,转动销轴;所述两根肋板通过转动销轴固定连接,所述蜗轮、摆臂及牵开器爪的数量均与铰接支座的数量相同,所述蜗轮套接在两根肋板之间的转动销轴上并与蜗杆相啮合,所述蜗杆的摩擦角小于蜗杆的螺旋升角;所述蜗轮的下部与摆臂固定连接,所述摆臂的另一端通过摆臂关节销轴与棘轮铰接连接;所述棘爪的一端通过棘爪销轴铰接安装在摆臂上,所述棘爪的另一端卡入在所述棘轮的齿槽内;所述复位扭簧的一端固定在摆臂上,所述复位扭簧的另一端固定在棘爪上;所述棘轮的下部与牵开器爪固定连接。 Quantity [0007] The hinge support is four or more, in order to uniform the worm support frame fixed in the hinge as the center; said pivoting support comprising: two ribs arranged in parallel, the rotation pin; the two ribs fixedly connected by rotation pins, the worm wheel, the retractor arm and the number of jaws associated with a number of identical pivoting support, the rotation of the worm wheel pin socket between the two ribs and engages with the worm, the worm is smaller than the friction angle of the worm helix angle; the worm wheel is fixedly connected to a lower portion of the swing arm, the other end of the swing arm via a joint pin and the ratchet arm is hinged; said One end of the ratchet pawl by a hinge pin mounted on the swing arm, the other end of the pawl snaps into the ratchet tooth groove within; the reset torsion spring having one end fixed on the swing arm, the reset the other end of the torsion spring is fixed on the pawl; and a lower portion of the ratchet pawl fixedly connected to the retractor.

[0008] 进一步,所述铰接支座的数量为六个。 [0008] Further, the hinge support number is six.

[0009] 进一步,所述转动销轴上安装有深沟球轴承,所述蜗轮套接在所述深沟球轴承上。 [0009] Further, the deep groove ball bearings rotatably mounted on the pin, the worm gear is sleeved on the deep groove ball bearings.

[0010] 更进一步,所述牵开器爪上设置有盐水纱布垫或湿治疗巾。 [0010] Still further, the retractor is provided with a wet saline gauze towel or pad on the jaw unit.

[0011] 本发明提供的一种具有多爪调节功能的手术牵开器,该手术牵开器利用蜗轮蜗杆传动时具有自锁功能的特性,通过悬吊架固定在手术台上,用手转动旋转手轮带动蜗杆旋转,蜗杆通过导向螺母的导向,蜗杆旋转沿竖直方向向下移动并与蜗轮相啮合传动,带动蜗轮上的摆臂转动一定角度,摆臂带动牵开器爪一起移动,牵开器爪上端设置的棘轮和摆臂下部设置的棘爪相啮合,棘爪通过复位扭簧提供回复力始终处于棘轮的齿槽内,棘爪卡住棘轮的齿槽内止动,使牵开器爪只能沿一个方向转动,具有单向性。 [0011] The present invention provides an adjustable jaw having a function of multiple surgical retractor, the surgical retractor self-locking characteristic when opening utilizes a worm gear, rotation of the suspending frame secured to an operating table, hand rotation of the worm wheel to drive rotation of the hand, by a guide nut guide worm, the worm is rotated in a vertical downward direction and is engaged with the worm gear to drive the rotation of the swing angle on the worm wheel, a swing arm driven by the retractor claw moving together, retractor ratchet and pawl arm opening provided in the lower jaw is arranged to engage the upper end of the pawl is provided by the restoring force of the torsion spring is always reset the ratchet tooth groove, the stopper pawl stuck ratchet tooth groove of the pull spreaders pawl is rotated in one direction only, is unidirectional. 铰接支座架内均布的四个以上的牵开器爪能够实现同步展开或同步收缩,进而调节多个牵开器爪的支撑范围,操作简单并能有效显露手术野。 The pivoting support frame equispaced four or more can be achieved retractor pawl launched simultaneously or synchronous contraction, and thus the range of a plurality of adjustable support retractor pawl, easy to operate and can effectively expose the surgical field. 同时可以根据需要通过棘爪与棘轮配合手动单独调节任意一个牵开器爪的支撑夹角,使得在手术过程中能够方便有效牵开各个组织,调节灵活。 At the same time can be adjusted according to need with a manual ratchet pawl support either as a single angle of a pawl of the retractor, so that the procedure can be convenient and effective tissue retractor respective flexible adjustment. 将悬吊架设置成U形,可从两个对称方向手动操作旋转手轮,使用更加方便灵活。 The suspension frame in a U-shape is provided, symmetrically from two directions manually rotating the hand wheel, to use more convenient and flexible.

附图说明 BRIEF DESCRIPTION

[0012] 为了易于说明,本发明由下述的较佳实施例及附图作以详细描述。 [0012] For ease of description, the present invention consists of the following preferred embodiments and the accompanying drawings to be described in detail.

[0013] 图1为本发明一种具有多爪调节功能的手术牵开器未展开时的结构示意图; [0013] Figure 1 is a schematic view of a configuration of the invention, a multi-function surgical regulating pawl retractor having an undeployed;

[0014] 图2为本发明一种具有多爪调节功能的手术牵开器展开时的结构示意图; [0014] FIG. 2 is a schematic view of a structure in the invention prong adjustment function having a deployed surgical retractor;

[0015] 图3为本发明一种具有多爪调节功能的手术牵开器中蜗杆与蜗轮配合示意图; [0015] FIG. 3 is an adjustment function of a multi-jaw surgical retractor and the worm wheel with the worm having a schematic view;

[0016] 图4为本发明一种具有多爪调节功能的手术牵开器中摆臂与牵开器爪连接示意图; [0016] FIG. 4 of the present invention having a prong adjustment function surgical retractor and the retractor arm the pawl connection diagram;

[0017] 其中附图标记为:1、悬吊架;2、旋转手轮;3、蜗杆;4、导向螺母;5、铰接支座;6、铰接支座架;7、蜗轮;8、转动销轴;9、肋板;10、摆臂;11、棘爪;12、复位扭簧;13、棘轮;14、摆臂关节销轴;15、棘爪销轴;16、牵开器爪;17、通孔。 [0017] wherein reference numerals: 1, the suspension holder; 2, rotation of the hand wheel; 3, the worm; 4, guide nut; 5, pivoting support; 6, the pivoting support frame; 7, the worm wheel; 8, rotation pin; 9, rib; 10, swing arm; 11, a pawl; 12, reset torsion spring; 13, a ratchet; 14, arm joint pin; 15, pawl pin; 16, retractor pawl; 17, the through hole.

具体实施方式 Detailed ways

[0018] 为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。 [0018] To make the objectives, technical solutions and advantages of the present invention will become more apparent hereinafter in conjunction with the accompanying drawings and embodiments of the present invention will be further described in detail. 应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。 It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention.

[0019] 请参照图1-4,本发明的一种具有多爪调节功能的手术牵开器,包括:悬吊架1,旋转手轮2,蜗杆3,通孔17,导向螺母4,铰接支座架6,铰接支座5,蜗轮7,摆臂10,摆臂关节销轴14,棘爪11,复位扭簧12,棘轮13,棘爪销轴15,牵开器爪16。 [0019] Referring to FIGS. 1-4, the present invention has one kind prong adjustment function surgical retractor, comprising: a suspension frame 1, the rotary hand wheel 2, the worm 3, the through hole 17, the guide nut 4, the hinge support frame 6, pivoting support 5, the worm wheel 7, the swing arm 10, arm joint pin 14, the pawl 11, the reset torsion spring 12, ratchet 13, pawl pin 15, the pawl 16 of the retractor. 该悬吊架I呈倒立U形状,该悬吊架I下部与铰接支座架6固定连接,该铰接支座架6中部开设有通孔17,该导向螺母4对应通孔17位置固定安装在铰接支座架6上。 The suspension was inverted U shape I frame, the suspension frame and a lower hinge support I frame 6 is fixedly connected to the middle of the pivoting support frame 6 defines a through hole 17, the guide nut 4 position corresponding to the through hole 17 is fixedly mounted 6 the pivoting support frame. 该蜗杆3依次竖直安装在该导向螺母4、通孔17内,该导向螺母4具有导向作用,使得蜗杆3只能竖直进行上下移动。 The worm 3 are sequentially mounted in the vertical guide nut 4, the through hole 17, the guide nut 4 has a guiding effect, so that the worm 3 can move up and down vertically. 该旋转手轮2设置在悬吊架I内并与蜗杆3的上端固定连接,悬吊架I设置成U形,可从两个对称方向手动操作旋转手轮2,使用更加方便灵活。 The rotation of the hand wheel the suspension frame 2 is provided with an upper end of the worm and I 3 is fixedly connected to the suspending frame I is provided a U-shaped, manually rotatable hand wheel from two directions symmetrical operation 2, more convenient and flexible to use.

[0020] 该铰接支座5的数量为四个以上,以蜗杆3为中心均布固定在铰接支座架6内,作为优选,该铰接支座5的数量为六个,具体参加图3。 [0020] The number of the hinge support 5 is four or more, in order to uniform the worm 3 is fixed in the pivoting support frame 6, preferably, the hinge support is six number 5, see FIG. 3 is a specific center. 该铰接支座5包括:平行设置的两根肋板9,转动销轴8。 The pivoting support 5 comprises: two parallel arranged ribs 9, the rotation pin 8. 该两根肋板9通过转动销轴8固定连接,该蜗轮7、摆臂10及牵开器爪16的数量均与铰接支座5的数量相同,该蜗轮7套接在两根肋板9之间的转动销轴8上并与蜗杆3相啮合,该转动销轴8上安装有深沟球轴承(未图示),该蜗轮7套接在该深沟球轴承上,使得蜗轮7转动更加灵活。 The two ribs 9 are connected by the rotation pin 8 is fixed, the number of the worm wheel 7, the retractor arm 10 and the jaws 16 are of the same number of hinge seat 5, the worm wheel 7 sleeved two ribs 9 rotation between the pin 8 and engages with the worm 3, which is mounted rotatably deep groove ball bearings (not shown) on the pin 8, the worm wheel 7 is sleeved on the deep groove ball bearings, such that rotation of the worm wheel 7 more flexible. 该蜗杆3的摩擦角小于蜗杆3的螺旋升角,当蜗杆3的摩擦角小于蜗杆3的螺旋升角时,具有自锁性,可实现反向自锁,即只能由蜗杆3带动蜗轮7,而不能由蜗轮7带动蜗杆3,同时蜗轮蜗杆传动可以得到很大的传动比,两啮合齿面间为线接触,其承载能力大,蜗杆传动相当于螺旋传动,为多齿啮合传动,故传动平稳、噪音很小。 The worm 3 is smaller than the friction angle of the worm helix angle of 3, when the friction angle of the worm 3 is smaller than the helix angle of the worm 3, having a self-locking, self-locking can be achieved reverse, i.e. only the worm wheel 7 driven by a worm 3 , but not driven by the worm wheel 7 of the worm 3, while the worm gear transmission ratio can be greatly between two meshing tooth surface is line contact, a large carrying capacity, the equivalent of a worm drive screw drive, gear transmission multidentate, so smooth transmission, noise is small. 该蜗轮7的下部与摆臂10固定连接,该摆臂10的另一端通过摆臂关节销轴14与棘轮13铰接连接。 The worm wheel 7 and the lower portion of the swing arm 10 is fixedly connected to the other end of the swing arm 10 by a pin joint 14 is connected with the ratchet wheel 13 is hinged. 该棘爪11的一端通过棘爪销轴15铰接安装在摆臂10上,该棘爪11的另一端卡入在该棘轮13的齿槽内。 One end of the detent pawl 11 is mounted by pin 15 on arm 10 is hinged, the other end of the card into the pawl 11 in the tooth groove 13 of the ratchet. 该复位扭簧12的一端固定在摆臂10上,该复位扭簧12的另一端固定在棘爪11上。 One end of the reset torsion spring 12 is fixed on the swing arm 10, the return of the torsion spring 12 the other end is fixed on the pawl 11. 该棘轮13的下部与牵开器爪16固定连接,通过摆臂关节销轴14使得牵开器爪16能够灵活转动一定角度,同时牵开器爪16上设置有盐水纱布垫或湿治疗巾(未图示),能够保护牵开器爪16支撑的周围器官及组织免受损伤。 The lower portion 13 of the ratchet and pawl of the retractor 16 is fixedly connected to the swing arm through a pin joint so that the pawl 16 of the retractor 14 can be flexible rotation angle, while saline gauze pad is provided with a wet towel or a retractor pawl 16 ( not shown), to protect organs and tissue surrounding the retractor pawl support 16 from damage.

[0021] 该手术牵开器的工作原理为:该手术牵开器利用蜗轮7蜗杆3传动时具有自锁功能的特性,即只能由蜗杆3带动蜗轮7,而不能由蜗轮7带动蜗杆3。 [0021] The working principle of open surgical retractor device is: a self-locking characteristic of the surgical retractor 3 worm gear worm wheel 7, i.e. only by the worm 3 drives worm gear 7, the worm wheel 7 can not be driven by the worm 3 . 通过悬吊架I固定在手术台上,用手转动旋转手轮2带动蜗杆3旋转,蜗杆3通过导向螺母4的导向,蜗杆3旋转沿竖直方向向下移动并与蜗轮7相啮合传动,带动蜗轮7上的摆臂10转动一定角度,摆臂10带动牵开器爪16 —起移动,牵开器爪16上端设置的棘轮13和摆臂10下部设置的棘爪11相啮合,棘爪11通过复位扭簧12提供回复力始终处于棘轮13的齿槽内,棘爪11卡住棘轮13的齿槽内止动,使牵开器爪16只能沿一个方向转动,具有单向性,参见图4。 I by suspending frame fixed on the operating table, by hand rotation of the rotary hand wheel 2 driven by the worm 3 is rotated, the worm 3 guided by the guide nut 4, rotation of the worm 3 is moved downward in the vertical direction and is engaged with the worm gear 7, drives worm gear 10 rotates the swing arm 7 at an angle, the retractor arm 10 drives the pawl 16-- move together, the ratchet pawl 13 and the retractor arm 10 is provided in the lower pawl 16 engages the upper end 11 is provided, the pawl 11 provides a restoring force is always within the detent 13 of the gullet tooth groove of the ratchet, the ratchet pawl 13 through 11 stuck reset torsion spring 12, so that the retractor pawl 16 is rotated in one direction only, is unidirectional, see Figure 4. 铰接支座架6内均布的牵开器爪16能够实现同步展开或同步收缩,进而调节多个牵开器爪16的支撑范围,操作简单并能有效显露手术野。 Pivoting support frame 6 uniform retractor pawl 16 can expand or synchronize synchronous contraction, and thus the range of a plurality of adjustable support retractor pawl 16, the operation is simple and can effectively expose the surgical field. 同时可以根据需要通过棘爪11与棘轮13配合手动单独调节任意一个牵开器爪16的支撑夹角,使得在手术过程中能够方便有效牵开各个组织,调节灵活。 At the same time can be adjusted as necessary by the ratchet pawl 11 and the support 13 with a manual single arbitrary angle a retractor pawl 16, so that the procedure can be convenient and effective tissue retractor respective flexible adjustment.

[0022] 以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。 [0022] The foregoing is only preferred embodiments of the present invention but are not intended to limit the present invention, any modifications within the spirit and principle of the present invention, equivalent substitutions and improvements should be included in the present within the scope of the invention.

Claims (4)

1.一种具有多爪调节功能的手术牵开器,其特征在于,包括:悬吊架,旋转手轮,蜗杆,通孔,导向螺母,铰接支座架,铰接支座,蜗轮,摆臂,摆臂关节销轴,棘爪,复位扭簧,棘轮,棘爪销轴,牵开器爪;所述悬吊架呈倒立U形状,所述悬吊架下部与铰接支座架固定连接,所述铰接支座架中部开设有通孔,所述导向螺母对应通孔位置固定安装在铰接支座架上,所述蜗杆依次竖直安装在所述导向螺母、通孔内,所述旋转手轮设置在悬吊架内并与蜗杆的上端固定连接; 所述铰接支座的数量为四个以上,以蜗杆为中心均布固定在铰接支座架内;所述铰接支座包括:平行设置的两根肋板,转动销轴;所述两根肋板通过转动销轴固定连接,所述蜗轮、摆臂及牵开器爪的数量均与铰接支座的数量相同,所述蜗轮套接在两根肋板之间的转动销轴上并与蜗杆相啮合 A pawl having a plurality of adjustable retractor surgical function, characterized by comprising: a suspension frame, the handwheel, a worm, a through hole, the guide nut, pivoting support frame, the pivoting support, the worm wheel, a swing arm swing arm joint pin, the pawl reset torsion spring, a ratchet, a pawl pin, the retractor pawl; the form of an inverted U-shaped suspension frame, the suspension frame and a lower hinge support bracket fixedly connected, the pivoting support frame defines a central through-hole, the through hole corresponding to the position of the guide nut fixedly mounted in the pivoting support frame, said worm in turn mounted on the vertical guide nut, the through-hole, said rotary hand wheel suspension holder disposed within and fixed to an upper end connected to the worm; the number is four or more pivoting support to the worm uniform pivoting support frame fixed in the center; the pivoting support comprises: disposed in parallel the two ribs, the rotation pin; said two ribs fixedly connected by rotation pins, the worm wheel, the retractor arm and the number of spreaders are the same as the number of pawls pivoting support of said worm gear socket and engages with the worm on a rotating pin between the two ribs 所述蜗杆的摩擦角小于蜗杆的螺旋升角;所述蜗轮的下部与摆臂固定连接,所述摆臂的另一端通过摆臂关节销轴与棘轮铰接连接;所述棘爪的一端通过棘爪销轴铰接安装在摆臂上,所述棘爪的另一端卡入在所述棘轮的齿槽内;所述复位扭簧的一端固定在摆臂上,所述复位扭簧的另一端固定在棘爪上;所述棘轮的下部与牵开器爪固定连接。 Is smaller than the friction angle of the worm of the worm helix angle; lower the worm wheel is fixedly connected with the swing arm, the other end of said swing arm through the joint pin and the ratchet arm hingedly connected; end of the ratchet pawl by pawl pin hingedly mounted on the swing arm, the other end of the pawl snaps into the ratchet tooth groove within; the reset torsion spring having one end fixed on the swing arm, said torsion spring other end is fixed reset on the pawl; and a lower portion of the ratchet pawl fixedly connected to the retractor.
2.根据权利要求1所述的一种具有多爪调节功能的手术牵开器,其特征在于,所述铰接支座的数量为六个。 2. A method according to claim 1 having a prong adjustment function surgical retractor, characterized in that the pivoting support number is six.
3.根据权利要求1或2所述的一种具有多爪调节功能的手术牵开器,其特征在于,所述转动销轴上安装有深沟球轴承,所述蜗轮套接在所述深沟球轴承上。 3. According to one of claim 1 or claim 2 having a prong adjustment function surgical retractor, characterized in that said pin is rotatably mounted on the deep groove ball bearings, said worm gear sleeved on said deep the groove ball bearings.
4.根据权利要求3所述的一种具有多爪调节功能的手术牵开器,其特征在于,所述牵开器爪上设置有盐水纱布垫或湿治疗巾。 According to claim 3, wherein one of said adjustable jaw having a plurality of retractor surgical function, characterized in that said retractor is provided with an opening on the pawl wet saline gauze pad or towel.
CN201410588520.9A 2014-10-20 2014-10-20 Operation retractor provided with multi-claw adjusting function CN104323806A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105559835A (en) * 2016-02-06 2016-05-11 贺新宁 Incision tissue retractor
CN105769262A (en) * 2016-01-25 2016-07-20 许加友 Auxiliary instrument for gastrointestinal surgical operation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003017847A1 (en) * 2001-08-23 2003-03-06 Maged Hussien Surgical retractor
CN2649022Y (en) * 2003-09-29 2004-10-20 王善杰 Multi-foot big S abdominal cavity drag hook
CN201101551Y (en) * 2007-09-12 2008-08-20 兰州兰飞医疗器械有限公司 Multifunctional surgical retractor
US20110224496A1 (en) * 2010-03-11 2011-09-15 Mark Weiman Tissue Retractor and Method of Use
US8602984B2 (en) * 2003-12-18 2013-12-10 DePuy Synthes Products, LLC Surgical retractor systems and illuminated cannulae
CN204147073U (en) * 2014-10-20 2015-02-11 郑州人民医院 Operation retractor with multiple-claw regulating function

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003017847A1 (en) * 2001-08-23 2003-03-06 Maged Hussien Surgical retractor
CN2649022Y (en) * 2003-09-29 2004-10-20 王善杰 Multi-foot big S abdominal cavity drag hook
US8602984B2 (en) * 2003-12-18 2013-12-10 DePuy Synthes Products, LLC Surgical retractor systems and illuminated cannulae
CN201101551Y (en) * 2007-09-12 2008-08-20 兰州兰飞医疗器械有限公司 Multifunctional surgical retractor
US20110224496A1 (en) * 2010-03-11 2011-09-15 Mark Weiman Tissue Retractor and Method of Use
CN204147073U (en) * 2014-10-20 2015-02-11 郑州人民医院 Operation retractor with multiple-claw regulating function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105769262A (en) * 2016-01-25 2016-07-20 许加友 Auxiliary instrument for gastrointestinal surgical operation
CN105769262B (en) * 2016-01-25 2018-02-09 许加友 One kind of gastrointestinal surgical assist devices
CN105559835A (en) * 2016-02-06 2016-05-11 贺新宁 Incision tissue retractor

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