CN114795332A - Heart operation wound supports dodges ware - Google Patents

Abstract

A cardiac operation wound support avoiding device effectively solves the problems of inconvenient effective opening, avoiding and traction on a patient wound; the surgical retractor comprises an upper axial circular ring and a lower axial circular ring, wherein a circular groove is coaxially formed in the circular ring, a ring gear is coaxially and rotatably connected in the circular groove, a plurality of arc plates uniformly distributed along the circumferential direction of the ring gear are arranged on the upper side of the ring gear, the distance between the plurality of arc plates and the circle center of the ring gear gradually decreases along the clockwise direction, a plurality of supporting plates in one-to-one correspondence with the arc plates are slidably connected in the circular groove, the outer ends of the supporting plates extend into the circular groove, the lower sides of the supporting plates are provided with abdicating grooves with downward openings, the inner ends of the supporting plates penetrate through the circular ring and are provided with rectangular grooves, supporting rods are hinged in the rectangular grooves through pin shafts, a plurality of connecting blocks which are in one-to-one correspondence with the supporting rods and can slide are arranged on the lower sides of the circular ring, the lower ends of the connecting blocks are hinged with the outer sides of the supporting rods on the corresponding sides of the connecting rods through connecting rods, and surgical retractor is arranged on the lower sides of the supporting rods; the invention has novel conception, ingenious structure, convenient operation and strong practicability.

Description

Translated fromChinese

一种心脏手术创口支撑避让器A kind of heart surgery wound support avoider

技术领域technical field

本发明涉及心脏手术辅助器械技术领域，特别是一种心脏手术创口支撑避让器。The invention relates to the technical field of cardiac surgery aids, in particular to a cardiac surgery wound support and avoider.

背景技术Background technique

心脏科是外科领域个分支中较年轻的一个学科，主要是以手术治疗心脏病，如心脏搭桥术、先天性心脏病手术、瓣膜置换术等。而所治疗的常见心脏病有：先天性心脏病、瓣膜性心脏病、冠心病、胸主动脉瘤、心包疾病、心脏肿瘤等，其中当对其找那个部分病种进行手术时，需要在人体胸部切出操作口，用以实现医护人员直接对心脏进行相关的操作，切开手术刀口时，往往需要对创口进行撑开避让和牵拉，然而现在一般都是辅助医护人员采用手术器具对创口进行撑开牵拉，不仅不便对创口更好的撑开和牵拉，也容易增大医护人员的工作负担，且心脏手术时间较长，一直人工撑开和牵拉容易对患者造成二次伤害。Cardiology is a relatively young discipline in the field of surgery. It mainly treats heart disease with surgery, such as heart bypass surgery, congenital heart disease surgery, and valve replacement surgery. The common heart diseases treated are: congenital heart disease, valvular heart disease, coronary heart disease, thoracic aortic aneurysm, pericardial disease, cardiac tumor, etc. Among them, when searching for that part of the disease, it is necessary to perform surgery on the human body. The operation port is cut out of the chest to enable medical staff to directly perform related operations on the heart. When incising the surgical incision, it is often necessary to stretch the wound to avoid and stretch it. It is not only inconvenient to stretch and stretch the wound better, but also easily increase the workload of medical staff, and the heart operation time is long, and manual stretching and stretching all the time can easily cause secondary injury to the patient .

发明内容SUMMARY OF THE INVENTION

针对上述情况，为克服现有技术之缺陷，本发明之目的就是提供一种心脏手术创口支撑避让器，有效的解决了不便对患者创口有效的撑开避让和牵拉的问题。In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a cardiac surgery wound support and avoider, which effectively solves the problem of inconvenience of effectively opening and pulling the patient's wound.

其解决的技术方案是，本发明包括上下轴向的圆形环，圆形环内同轴开设有环形槽，环形槽内同轴转动连接有环形齿轮，环形齿轮上侧设有多个沿其圆周方向均布的弧形板，多个弧形板与环形齿轮圆心之间的距离沿顺时针方向逐渐变小，多个弧形板的高度沿逆时针方向逐渐变高，环形槽内滑动连接有多个与弧形板一一对应且镜像方向的支撑板，支撑板外端伸入环形槽内且其下侧开设有开口朝下的让位槽，弧形板位于其对应侧的让位槽内，支撑板可随环形齿轮的转动而上下滑动，支撑板内端贯穿圆形环且开设有上下贯通的矩形槽，矩形槽内经销轴铰接有上下方向的撑杆，圆形环下侧设有多个与撑杆一一对应且可滑动的连接块，连接块下端经连杆与其对应侧的撑杆外侧铰接连接，撑杆下侧设有上下方向的手术拉钩。Its technical solution is that the present invention includes a circular ring in the upper and lower axial directions, an annular groove is coaxially opened in the circular ring, a ring gear is coaxially rotatably connected in the annular groove, and the upper side of the ring gear is provided with a plurality of rings. The arc-shaped plates are evenly distributed in the circumferential direction. The distance between the plurality of arc-shaped plates and the center of the ring gear gradually decreases in the clockwise direction, and the height of the plurality of arc-shaped plates gradually increases in the counterclockwise direction. There are a plurality of support plates corresponding to the arc-shaped plates one-to-one and in the mirror image direction. The outer end of the support plate extends into the annular groove, and the lower side of the support plate is provided with a way-out groove with the opening facing downward, and the arc-shaped plate is located in the way of the corresponding side. In the groove, the support plate can slide up and down with the rotation of the ring gear. The inner end of the support plate penetrates the circular ring and is provided with a rectangular groove that runs through up and down. There are a plurality of slidable connecting blocks corresponding to the struts one-to-one. The lower ends of the connecting blocks are hingedly connected to the outer sides of the struts on the corresponding side through the connecting rods.

本发明构思新颖，结构巧妙，操作方便，实用性强，转动T形转帽便于带动手术拉钩向外并向上移动对患者创口更好的撑开避让和牵拉，充分暴露手术视野，便于医护人员更好的进行手术治疗。The invention has novel conception, ingenious structure, convenient operation and strong practicability. Rotating the T-shaped swivel cap is convenient for driving the surgical retractor to move outward and upward, so as to better spread, avoid and pull the patient's wound, fully expose the surgical field, and facilitate the medical staff. better surgical treatment.

附图说明Description of drawings

图1是本发明的轴测图。Figure 1 is an axonometric view of the present invention.

图2是本发明的全剖主视轴测图。FIG. 2 is a full-section front axonometric view of the present invention.

图3是本发明的全剖俯视轴测图。Figure 3 is a top isometric view of the present invention in full cutaway.

图4是本发明的环形齿轮的主视轴测图。Figure 4 is a front isometric view of the ring gear of the present invention.

图5是本发明的仰视轴测图。Figure 5 is a bottom axonometric view of the present invention.

图6是本发明的全剖仰视轴测图。Figure 6 is a bottom axonometric view of the present invention in full cutaway.

图7是本发明的全剖右视轴测图。Figure 7 is a full cut-away right axonometric view of the present invention.

图8是本发明图3中A的放大图。FIG. 8 is an enlarged view of A in FIG. 3 of the present invention.

图9是本发明图7中B的放大图。FIG. 9 is an enlarged view of B in FIG. 7 of the present invention.

具体实施方式Detailed ways

以下结合附图对本发明的具体实施方式作进一步详细说明。The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

由图1至图9给出，包括上下轴向的圆形环1，圆形环1内同轴开设有环形槽2，环形槽2内同轴转动连接有环形齿轮3，环形齿轮3上侧设有多个沿其圆周方向均布的弧形板4，多个弧形板4与环形齿轮3圆心之间的距离沿顺时针方向逐渐变小，多个弧形板4的高度沿逆时针方向逐渐变高，环形槽2内滑动连接有多个与弧形板4一一对应且镜像方向的支撑板5，支撑板5外端伸入环形槽2内且其下侧开设有开口朝下的让位槽6，弧形板4位于其对应侧的让位槽6内，支撑板5可随环形齿轮3的转动而上下滑动，支撑板5内端贯穿圆形环1且开设有上下贯通的矩形槽7，矩形槽7内经销轴铰接有上下方向的撑杆8，圆形环1下侧设有多个与撑杆8一一对应且可滑动的连接块9，连接块9下端经连杆10与其对应侧的撑杆8外侧铰接连接，撑杆8下侧设有上下方向的手术拉钩11。1 to 9, it includes acircular ring 1 in the upper and lower axial directions, anannular groove 2 is coaxially opened in thecircular ring 1, and aring gear 3 is coaxially connected in theannular groove 2, and the upper side of thering gear 3 There are a plurality of arc-shaped plates 4 evenly distributed along its circumferential direction, the distance between the plurality of arc-shaped plates 4 and the center of thering gear 3 gradually decreases in the clockwise direction, and the height of the plurality of arc-shaped plates 4 is counterclockwise. The direction gradually becomes higher, and theannular groove 2 is slidably connected with a plurality of supportingplates 5 corresponding to the arc-shaped plates 4 one-to-one and in the mirror image direction. Thearc plate 4 is located in thegive way slot 6 on the corresponding side, thesupport plate 5 can slide up and down with the rotation of thering gear 3, and the inner end of thesupport plate 5 penetrates thecircular ring 1 and is provided with up and down through holes. Therectangular groove 7, thesupport rod 8 in the upper and lower directions is hinged in therectangular groove 7 through the pin shaft, and the lower side of thecircular ring 1 is provided with a plurality of connectingblocks 9 corresponding to thesupport rods 8 and slidable, and the lower end of the connectingblock 9 is The connectingrod 10 is hingedly connected to the outer side of thestrut 8 on the corresponding side, and the lower side of thestrut 8 is provided with asurgical retractor 11 in the up-down direction.

为了使支撑板5可随环形齿轮3的转动而上下滑动，所述的圆形环1上开设有多个与支撑板5一一对应且与环形槽2连通的辅助槽12，支撑板5位于其对应侧的辅助槽12内，环形槽2外侧壁上开设有多个与支撑板5一一对应且上下方向的导向槽13，导向槽13内滑动连接有导向板14，导向板14内端与其对应侧的支撑板5滑动连接。In order to enable thesupport plate 5 to slide up and down with the rotation of thering gear 3, thecircular ring 1 is provided with a plurality ofauxiliary grooves 12 corresponding to thesupport plate 5 one-to-one and communicated with theannular groove 2. Thesupport plate 5 is located at the In theauxiliary groove 12 on the corresponding side, the outer side wall of theannular groove 2 is provided with a plurality ofguide grooves 13 corresponding to thesupport plate 5 one-to-one and in the up and down direction. It is slidably connected to the supportingplate 5 on the corresponding side.

为了使连接块9能够更好的滑动，所述的圆形环1下侧设有多个与撑杆8一一对应且镜像方向的滑槽15，连接块9位于其对应侧的滑槽15内且与滑槽15滑动连接。In order to enable the connectingblock 9 to slide better, the lower side of thecircular ring 1 is provided with a plurality of slidinggrooves 15 corresponding to thestruts 8 one-to-one and in the mirror image direction, and the connectingblock 9 is located on thesliding groove 15 on the corresponding side. inside and slidingly connected with thechute 15 .

为了便于更好的转动环形齿轮3，所述的圆形环1右侧开设有与环形槽2连通的放置槽16，放置槽16内转动连接有上下轴向且开口朝上的导筒17，导筒17上同轴设有与环形齿轮3啮合的主动齿轮18，导筒17上端贯穿圆形环1且其内部套设有上下方向的T形转帽19，导筒17内同轴设有位于T形转帽19下侧的压簧。In order to facilitate better rotation of thering gear 3, the right side of thecircular ring 1 is provided with aplacement groove 16 that communicates with theannular groove 2. Theplacement groove 16 is rotatably connected with aguide cylinder 17 with an upper and lower axial direction and an upward opening. Theguide cylinder 17 is provided with adriving gear 18 that meshes with thering gear 3 coaxially. The upper end of theguide cylinder 17 penetrates thecircular ring 1 and is sleeved with a T-shaped rotatingcap 19 in the up-down direction. Theguide cylinder 17 is coaxially provided with The compression spring on the underside of the T-shapedrotary cap 19.

为了便于对导筒17的转动进行定位，所述的圆形环1上侧设有与导筒17同轴的导向环20，导向环20内下侧同轴开设有环形的转槽21，导向环20内侧开设有多个沿其圆周方向均布且上下方向的定位槽22，多个定位槽22均与转槽21上侧连通，T形转帽19外侧设有可沿定位槽22上下滑动且可沿转槽21转动的定位块23。In order to facilitate the positioning of the rotation of theguide cylinder 17, thecircular ring 1 is provided with aguide ring 20 coaxial with theguide cylinder 17 on the upper side. The inner side of thering 20 is provided with a plurality ofpositioning grooves 22 which are evenly distributed along its circumferential direction and in the up-down direction. The plurality ofpositioning grooves 22 are all connected with the upper side of theturning groove 21. And thepositioning block 23 can rotate along theturning slot 21 .

为了便于将圆形环1更好固定在手术台上，所述的圆形环1左右两侧分别设有上下方向的固定板24，固定板24内侧开设有开口朝下的固定槽25，固定槽25侧壁上开设有上下方向的滑道26，固定槽25内设有左右方向且可上下滑动的T形夹板27，T形夹板27外端伸入其对应侧的滑道26内且与滑道26滑动连接，T形夹板27下侧经上下轴向的弹簧28与滑道26滑动连接。In order to better fix thecircular ring 1 on the operating table, the left and right sides of thecircular ring 1 are respectively provided withfixing plates 24 in the up and down direction, and the inner side of thefixing plate 24 is provided with afixing groove 25 with an opening facing downwards. The side wall of thegroove 25 is provided with aslideway 26 in the up and down direction, and thefixing groove 25 is provided with a T-shaped splint 27 which can slide up and down in the left and right directions. Theslideway 26 is slidably connected, and the lower side of the T-shaped splint 27 is slidably connected to theslideway 26 through the upper and loweraxial springs 28 .

为了使撑杆8在不受外力时能够保持竖直状态，所述的销轴上同轴设有位于矩形槽7内的扭簧29。In order to keep thestrut 8 in a vertical state when there is no external force, atorsion spring 29 located in therectangular groove 7 is coaxially provided on the pin shaft.

本发明在使用时，首先拉动T形夹板27沿滑道26向下滑动，弹簧28被压缩，随之将圆形环1经固定板24上的固定槽25卡接在手术台上，且使圆形环1位于患者创口处的正上方，随之不再拉动T形夹板27，此时在弹簧28的作用下，弹簧28带动T形夹板27沿滑道26向上滑动对手术台下侧进行挤压，便于将圆形环1稳定固定在手术台上，便于对患者的创口进行撑开避让，便于医护人员更好的进行手术；When the present invention is in use, first pull the T-shaped splint 27 to slide down along theslideway 26, thespring 28 is compressed, and then thecircular ring 1 is clamped on the operating table through thefixing groove 25 on thefixing plate 24, and the Thecircular ring 1 is located just above the wound of the patient, and then the T-shaped splint 27 is no longer pulled. At this time, under the action of thespring 28, thespring 28 drives the T-shaped splint 27 to slide upward along theslideway 26 to perform the operation on the underside of the operating table. Squeeze, it is convenient to stably fix thecircular ring 1 on the operating table, it is convenient to open and avoid the wound of the patient, and it is convenient for the medical staff to perform the operation better;

需要对患者创口进行撑开时，首先使多个手术拉钩11插入至患者的创口内，按压T形转帽19带动定位块23沿定位槽22向下移动插入至转槽21内，压簧被压缩，随之转动T形转帽19带动导筒17逆时针转动，导筒17经主动齿轮18带动环形齿轮3沿环形槽2顺时针转动，主动齿轮18顺时针转动经弧形板4和让位槽6带动多个支撑板5沿圆形环1向外滑动，促使支撑板5沿辅助槽12向外滑动并沿辅助槽12向上滑动，致使支撑板5带动导向板14沿导向槽13向上滑动，此时导向板14沿支撑板5向内滑动，促使支撑板5经撑杆8带动手术拉钩11向外并向上移动，促使手术拉钩11将患者的创口进行撑开，同时拉开患者的组织皮肤脱离器官组织，便于更好的进行手术，且撑杆8经连杆10推动连接块9沿滑槽15向外滑动，此时在扭簧29的作用下，能够使撑杆8保持竖直状态；When it is necessary to open the patient's wound, first insert a plurality ofsurgical retractors 11 into the patient's wound, press the T-shaped rotatingcap 19 to drive thepositioning block 23 to move down along thepositioning groove 22 and insert it into the rotatinggroove 21, and the compression spring is pressed. Compression, then turn the T-shaped rotatingcap 19 to drive theguide cylinder 17 to rotate counterclockwise, theguide cylinder 17 drives thering gear 3 to rotate clockwise along theannular groove 2 through thedriving gear 18, and thedriving gear 18 rotates clockwise through thearc plate 4 and let Theposition slot 6 drives the plurality ofsupport plates 5 to slide outward along thecircular ring 1 , which causes thesupport plates 5 to slide outward along theauxiliary groove 12 and slide upward along theauxiliary groove 12 , so that thesupport plate 5 drives theguide plate 14 upward along theguide groove 13 Sliding, at this time, theguide plate 14 slides inward along thesupport plate 5, so that thesupport plate 5 drives thesurgical retractor 11 to move outward and upward through thesupport rod 8, and thesurgical retractor 11 is urged to open the patient's wound and open the patient's wound. The tissue and skin are separated from the organ tissue, which is convenient for better operation, and thestrut 8 pushes the connectingblock 9 to slide outward along thechute 15 through the connectingrod 10. At this time, under the action of thetorsion spring 29, thestrut 8 can be kept vertical. straight state;

当连接块9向外滑动与滑槽15的外侧接触时，支撑板5继续沿辅助槽12向外滑动，此时连接块9经连杆10推动撑杆8沿矩形槽7向内摆动，扭簧29收缩，促使撑杆8下端带动手术拉钩11下端向内摆动对患者的创口组织进行有效的分离，便于充分暴露手术部位进行手术治疗，将患者手术创口撑开牵拉完毕后，不再转动T形转帽19，此时在压簧的作用下，压簧推动T形转帽19带动定位块23沿转槽21向上移动插入至对应侧的定位槽22内，能够使导筒17处于稳定位置，便于使手术拉钩11保持稳定位置，便于对患者手术创口进行更好的撑开避让，便于患者医护人员进行手术；When the connectingblock 9 slides outward and contacts the outside of thechute 15, thesupport plate 5 continues to slide outward along theauxiliary groove 12. At this time, the connectingblock 9 pushes thestrut 8 through the connectingrod 10 to swing inward along therectangular groove 7, twisting Thespring 29 shrinks, and the lower end of thestrut 8 drives the lower end of thesurgical retractor 11 to swing inward to effectively separate the wound tissue of the patient, which is convenient for fully exposing the surgical site for surgical treatment. At this time, under the action of the compression spring, the T-shapedrotating cap 19 pushes the T-shapedrotating cap 19 to drive thepositioning block 23 to move upward along the rotatinggroove 21 and insert it into thepositioning groove 22 on the corresponding side, so that theguide cylinder 17 can be stabilized It is convenient to keep thesurgical retractor 11 in a stable position, to better spread and avoid the surgical wound of the patient, and to facilitate the operation of the patient's medical staff;

对患者手术完毕后，首先推动T形转帽19带动定位块23沿定位槽22向下移动插入至转槽21内，压簧被压缩，随之顺时针转动T形转帽19，T形转帽19经导筒17和主动齿轮18带动环形齿轮3逆时针转动，主动齿轮18逆时针转动经弧形板4和让位槽6带动多个支撑板5沿圆形环1向内滑动，促使支撑板5沿辅助槽12向内滑动并沿辅助槽12向下滑动，致使支撑板5带动导向板14沿导向槽13向下滑动，此时导向板14沿支撑板5向外滑动，促使支撑板5经撑杆8带动手术拉钩11向内并向下移动，促使手术拉钩11不再对患者的创口进行撑开和牵连，同时在扭簧29和支撑板5的作用下，促使手术拉钩11从倾斜状态摆动至竖直状态，随之将手术拉钩11从患者的创口处取出；After the operation on the patient, first push the T-shapedrotating cap 19 to drive thepositioning block 23 to move down along thepositioning groove 22 and insert it into the rotatinggroove 21, the compression spring is compressed, and then the T-shapedrotating cap 19 is rotated clockwise, and the T-shapedrotating cap 19 is rotated. Thecap 19 drives thering gear 3 to rotate counterclockwise through theguide cylinder 17 and thedriving gear 18, and thedriving gear 18 rotates counterclockwise to drive the plurality ofsupport plates 5 to slide inward along thecircular ring 1 through the arc-shapedplate 4 and theabdication groove 6, so as to promote Thesupport plate 5 slides inward along theauxiliary groove 12 and slides down along theauxiliary groove 12, so that thesupport plate 5 drives theguide plate 14 to slide down along theguide groove 13. At this time, theguide plate 14 slides outward along thesupport plate 5 to promote the support Theplate 5 drives thesurgical retractor 11 to move inward and downward through thesupport rod 8, so that thesurgical retractor 11 no longer stretches and implicates the patient's wound. At the same time, under the action of thetorsion spring 29 and thesupport plate 5, thesurgical retractor 11 is urged Swing from the inclined state to the vertical state, and then take out thesurgical retractor 11 from the wound of the patient;

将手术拉钩11从患者的创口处取出完毕后，首先拉动T形夹板27沿滑道26向下滑动，弹簧28被压缩，促使T形夹板27不再对手术台的下侧进行挤压固定，随之通过固定板24将圆形环1上的手术拉钩11从患者的身体上方移走，便于医护人员对患者手术后的创口进行缝合治疗，同时便于提高医护人员的工作效率。After removing thesurgical retractor 11 from the patient's wound, first pull the T-shapedsplint 27 to slide down along theslideway 26, and thespring 28 is compressed, so that the T-shapedsplint 27 is no longer squeezed and fixed to the lower side of the operating table, Subsequently, thesurgical retractor 11 on thecircular ring 1 is removed from the top of the patient's body through the fixingplate 24, which is convenient for the medical staff to sew the wound of the patient after the operation, and at the same time, it is convenient to improve the work efficiency of the medical staff.

本发明构思新颖，结构巧妙，操作方便，实用性强，设置的环形齿轮、弧形板、让位槽、支撑板、撑杆和手术拉钩，不仅便于通过环形齿轮的转动带动支撑板的内外滑动和上下滑动，从而便于通过撑杆带动手术拉钩对患者的创口进行撑开避让，同时也便于牵拉患者的组织皮肤脱离患者组织器官，便于更好的暴露手术视野，设有的连接块、连杆和扭簧，便于使手术拉钩能够进行倾斜，便于更好的暴露手术视野，设有的主动齿轮、导筒、定位块、转槽、定位槽和T形转帽，便于对手术拉钩的位置和角度进行限位，便于更好的对患者的创口进行撑开和避让，暴露手术视野，不仅提高了医护人员的工作效率，也便于对患者进行更好的手术治疗。The invention has novel conception, ingenious structure, convenient operation and strong practicability. The provided ring gear, arc-shaped plate, giving way slot, support plate, support rod and surgical hook are not only convenient for driving the support plate to slide inside and outside through the rotation of the ring gear and sliding up and down, so that the surgical retractor can be driven by the strut to open and avoid the patient's wound, and it is also convenient to pull the patient's tissue and skin away from the patient's tissue and organs, so as to better expose the surgical field. The rod and torsion spring are convenient for the surgical retractor to be tilted, which is convenient for better exposure of the surgical field. The drive gear, guide cylinder, positioning block, turning groove, positioning groove and T-shaped turning cap are provided to facilitate the positioning of the surgical retractor. And the angle is limited to facilitate better opening and avoidance of the patient's wound, exposing the surgical field of vision, which not only improves the work efficiency of medical staff, but also facilitates better surgical treatment of patients.

可见，利用本发明所提供的一种心脏手术创口支撑避让器，可以有效解决不便对患者创口有效的撑开避免和牵拉的问题，此结构操作简单，使用方便，便于对患者手术创口撑开避让，便于更好的手术治疗。It can be seen that the use of the heart surgery wound support and avoider provided by the present invention can effectively solve the problem of inconvenience to effectively open and stretch the patient's wound. Avoidance to facilitate better surgical treatment.

Claims (7)

1. A wound support avoiding device for cardiac surgery comprises an upper and a lower axial circular rings (1), and is characterized in that a circular groove (2) is coaxially arranged in the circular ring (1), a ring gear (3) is coaxially connected in the circular groove (2) in a rotating manner, a plurality of arc plates (4) uniformly distributed along the circumferential direction of the circular ring (3) are arranged on the upper side of the ring gear (3), the distance between the arc plates (4) and the circle center of the ring gear (3) gradually decreases along the clockwise direction, the heights of the arc plates (4) gradually increase along the counterclockwise direction, a plurality of supporting plates (5) which correspond to the arc plates (4) in a one-to-one manner and are in the mirror image direction are slidably connected in the circular groove (2), the outer ends of the supporting plates (5) extend into the circular groove (2), a yielding groove (6) with an opening facing downwards is arranged on the lower side of the supporting plates (4), and the arc plates (4) are positioned in the yielding grooves (6) on the corresponding sides of the supporting plates, backup pad (5) can be along with the rotation of ring gear (3) and slide from top to bottom, backup pad (5) inner runs through circular ring (1) and sets up rectangular channel (7) that link up from top to bottom, it has vaulting pole (8) of upper and lower direction to distribute the axis hinge in rectangular channel (7), circular ring (1) downside is equipped with a plurality ofly and vaulting pole (8) one-to-one and slidable connecting block (9), connecting block (9) lower extreme is connected rather than vaulting pole (8) outside of corresponding the side is articulated through connecting rod (10), vaulting pole (8) downside is equipped with operation drag hook (11) of upper and lower direction.

2. The heart operation wound supporting and avoiding device according to claim 1, wherein a plurality of auxiliary grooves (12) which correspond to the supporting plates (5) in a one-to-one manner and are communicated with the annular groove (2) are formed in the circular ring (1), the supporting plates (5) are positioned in the auxiliary grooves (12) on the corresponding sides of the circular ring, a plurality of guide grooves (13) which correspond to the supporting plates (5) in a one-to-one manner and are in the vertical direction are formed in the outer side wall of the annular groove (2), guide plates (14) are connected in the guide grooves (13) in a sliding manner, and the inner ends of the guide plates (14) are connected with the supporting plates (5) on the corresponding sides of the guide grooves in a sliding manner.

3. A cardiac operation wound support and avoidance device according to claim 1, wherein the lower side of the circular ring (1) is provided with a plurality of slide grooves (15) which correspond to the support rods (8) one by one and have mirror image directions, and the connecting blocks (9) are positioned in the slide grooves (15) on the corresponding sides and are slidably connected with the slide grooves (15).

4. The heart operation wound supporting and avoiding device according to claim 1, wherein a placing groove (16) communicated with the annular groove (2) is formed in the right side of the circular ring (1), a guide cylinder (17) which is axially upward and downward and has an upward opening is rotatably connected in the placing groove (16), a driving gear (18) meshed with the annular gear (3) is coaxially arranged on the guide cylinder (17), the upper end of the guide cylinder (17) penetrates through the circular ring (1) and is internally sleeved with a T-shaped rotating cap (19) in the vertical direction, and a pressure spring located on the lower side of the T-shaped rotating cap (19) is coaxially arranged in the guide cylinder (17).

5. The heart operation wound supporting and avoiding device is characterized in that a guide ring (20) coaxial with the guide cylinder (17) is arranged on the upper side of the circular ring (1), an annular rotary groove (21) is coaxially formed in the inner lower side of the guide ring (20), a plurality of positioning grooves (22) which are uniformly distributed along the circumferential direction of the guide ring (20) in the vertical direction are formed in the inner side of the guide ring (20), the plurality of positioning grooves (22) are communicated with the upper side of the rotary groove (21), and a positioning block (23) which can slide up and down along the positioning grooves (22) and can rotate along the rotary groove (21) is arranged on the outer side of the T-shaped rotary cap (19).

6. The heart operation wound supporting and avoiding device according to claim 1, wherein fixing plates (24) in the vertical direction are respectively arranged on the left side and the right side of the circular ring (1), fixing grooves (25) with downward openings are formed in the inner sides of the fixing plates (24), slide ways (26) in the vertical direction are formed in the side walls of the fixing grooves (25), T-shaped clamping plates (27) which can slide in the vertical direction are arranged in the fixing grooves (25), the outer ends of the T-shaped clamping plates (27) extend into the slide ways (26) on the corresponding sides of the T-shaped clamping plates and are connected with the slide ways (26) in a sliding mode, and the lower sides of the T-shaped clamping plates (27) are connected with the slide ways (26) in a sliding mode through springs (28) in the vertical axial direction.

7. A cardiac surgery wound support and avoidance device according to claim 1, characterized in that a torsion spring (29) is coaxially arranged on the pin shaft and located in the rectangular groove (7).

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