CN111904557A - A puncture instrument for abdominal surgery - Google Patents

Abstract

Translated fromChinese

本发明涉及手术穿刺器械技术领域，尤其是一种腹腔手术用穿刺器械，包括管体，所述管体内插装有穿刺管，所述管体的上部连接底座，所述底座的截面呈圆形，所述底座的中部间隔设有两个相互平行的限位板，所述限位板呈环形，所述限位板的外缘与底座的内壁垂直连接，两个所述限位板之间夹持有多个扇形板，所述扇形板的上下表面分别与两个限位板滑动配合，相邻所述扇形板的侧边之间连接有弹力布，所述扇形板的外缘共同包围有弹性圈，所述弹性圈设在两个限位板之间，所述弹性圈的外缘与底座的内壁相抵，所述扇形板的内缘上部固定连接有斜块，所述斜块的内侧为倾斜面且倾斜方向为靠近扇形板内缘的一侧低于另一侧。本发明能够方便手术器械的置入操作。

The invention relates to the technical field of surgical puncture instruments, in particular to a puncture instrument for abdominal surgery, comprising a tube body with a puncture tube inserted in the tube body, the upper part of the tube body is connected to a base, and the cross-section of the base is circular , the middle of the base is spaced with two mutually parallel limit plates, the limit plates are annular, the outer edge of the limit plate is vertically connected with the inner wall of the base, and the space between the two limit plates A plurality of fan-shaped plates are clamped, the upper and lower surfaces of the fan-shaped plates are slidingly matched with the two limit plates respectively, elastic cloth is connected between the sides of the adjacent fan-shaped plates, and the outer edges of the fan-shaped plates are surrounded together. There is an elastic ring, the elastic ring is arranged between the two limit plates, the outer edge of the elastic ring is in contact with the inner wall of the base, and the upper part of the inner edge of the fan-shaped plate is fixedly connected with a slanted block. The inner side is an inclined surface and the inclined direction is that one side close to the inner edge of the fan-shaped plate is lower than the other side. The invention can facilitate the insertion operation of the surgical instrument.

Description

Translated fromChinese

一种腹腔手术用穿刺器械A puncture instrument for abdominal surgery

技术领域technical field

本发明涉及手术穿刺器械领域，尤其涉及一种腹腔手术用穿刺器械。The invention relates to the field of surgical puncture instruments, in particular to a puncture instrument for abdominal surgery.

背景技术Background technique

腹腔镜手术中，一般采用的是2～5个孔，一个放置腹腔镜，位置一般在下腹部的肚脐眼上，其余的孔用于放置手术器械。目前，广泛使用的腹腔镜手术器械规格，以外径来分有5mm、10mm、12mm等，需要配套使用于相应内径的穿刺套管上，以避免气腹漏气，影响手术的正常进行。在临床上，一台手术通常需要用到多种规格的手术器械，并在手术过程中交替使用。对于一个穿刺位置，固定好后的穿刺套管是不便更换的。在使用过程中，以10mm穿刺套管为例，当使用10mm规格的手术器械时，套管的顶盖内孔与器械之间的间隙较小(一般为0.5～2mm)，当器械左右摆动时，由于密封帽是弹性材质，其延展性可保证密封帽的内孔贴紧器械，因此密封性能良好；当使用5mm规格的手术器械时，套管的顶盖内孔与器械之间的间隙很大(一般为3～5mm)，当器械左右摆动时，密封帽的弹性变形不足以使其内孔贴紧器械，而产生了漏气。In laparoscopic surgery, 2 to 5 holes are generally used, one of which is used to place the laparoscope, usually on the navel of the lower abdomen, and the remaining holes are used to place surgical instruments. At present, the specifications of widely used laparoscopic surgical instruments are divided into 5mm, 10mm, 12mm, etc. in outer diameter, which need to be matched with the puncture cannula of the corresponding inner diameter to avoid air leakage in pneumoperitoneum and affect the normal operation of the operation. In clinical practice, an operation usually requires the use of surgical instruments of various specifications, which are used alternately during the operation. For a puncture position, the fixed puncture cannula is inconvenient to replace. During use, taking a 10mm puncture cannula as an example, when using a 10mm surgical instrument, the gap between the inner hole of the top cover of the cannula and the instrument is small (usually 0.5-2mm), and when the instrument swings left and right , Since the sealing cap is an elastic material, its ductility can ensure that the inner hole of the sealing cap is close to the instrument, so the sealing performance is good; when using 5mm surgical instruments, the gap between the inner hole of the top cover of the sleeve and the instrument is very large Large (generally 3-5mm), when the device swings left and right, the elastic deformation of the sealing cap is not enough to make the inner hole close to the device, resulting in air leakage.

对此专利号为CN201510268699.4的中国发明专利公开了变径腹腔穿刺器的制造方法及变径腹腔穿刺器，其通过旋转的方式来调节多个滑块进行移动，通过滑块的移动来实现对器械进行夹持，达到防止漏气的问题，其虽然能够一定程度上解决漏气的问题，并且能够改变内径，但是每次需要重新操作一次滑块才能进行限制，而滑块位于内部不能够直接观察其状态，因此也造成了操作上的不便，因此有必要进行改进。The Chinese invention patent with the patent number of CN201510268699.4 discloses a manufacturing method of a variable-diameter paracentesis device and a variable-diameter paracentesis device, which can adjust a plurality of sliders to move by rotating, and realize the movement of the sliders. The device is clamped to prevent air leakage. Although it can solve the problem of air leakage to a certain extent and can change the inner diameter, it needs to re-operate the slider each time to limit it, and the slider cannot be located inside. Direct observation of its state, therefore, also causes inconvenience in operation, so it is necessary to improve.

发明内容SUMMARY OF THE INVENTION

本发明的目的是为了解决现有技术中存在不方便操作的缺点，而提出的一种腹腔手术用穿刺器械。The purpose of the present invention is to propose a puncture instrument for abdominal surgery in order to solve the disadvantage of inconvenient operation in the prior art.

为达到以上目的，本发明采用的技术方案为：一种腹腔手术用穿刺器械，包括管体，所述管体内插装有穿刺管，所述管体的上部连接底座，所述底座的截面呈圆形，所述底座的中部间隔设有两个相互平行的限位板，所述限位板呈环形，所述限位板的外缘与底座的内壁垂直连接，两个所述限位板之间夹持有多个扇形板，所述扇形板的上下表面分别与两个限位板滑动配合，相邻所述扇形板的侧边之间连接有弹力布，所述扇形板的外缘共同包围有弹性圈，所述弹性圈设在两个限位板之间，所述弹性圈的外缘与底座的内壁相抵，所述扇形板的内缘上部固定连接有斜块，所述斜块的内侧为倾斜面且倾斜方向为靠近扇形板内缘的一侧低于另一侧。In order to achieve the above purpose, the technical scheme adopted in the present invention is: a puncture instrument for abdominal surgery, comprising a tube body, a puncture tube is inserted into the tube body, the upper part of the tube body is connected to a base, and the cross-section of the base is The middle part of the base is spaced with two mutually parallel limit plates, the limit plates are annular, the outer edge of the limit plate is vertically connected with the inner wall of the base, and the two limit plates A plurality of fan-shaped plates are clamped between them, the upper and lower surfaces of the fan-shaped plates are respectively slidably matched with two limit plates, elastic cloth is connected between the sides of the adjacent fan-shaped plates, and the outer edge of the fan-shaped plate is An elastic ring is surrounded together, the elastic ring is arranged between the two limit plates, the outer edge of the elastic ring is in contact with the inner wall of the base, the upper part of the inner edge of the fan-shaped plate is fixedly connected with an inclined block, the inclined block is The inner side of the block is an inclined surface and the inclined direction is that one side close to the inner edge of the fan-shaped plate is lower than the other side.

优选的，所述弹性圈上设有多个同心的环形槽，所述环形槽等距设置。Preferably, the elastic ring is provided with a plurality of concentric annular grooves, and the annular grooves are arranged at equal distances.

优选的，所述底座的上部螺纹连接有密封盖，所述穿刺管的上端连接有端盖，所述端盖的底面抵住密封盖的上端，所述端盖通过活动连接结构与端盖连接。Preferably, a sealing cap is threadedly connected to the upper part of the base, an end cap is connected to the upper end of the puncture tube, the bottom surface of the end cap is pressed against the upper end of the sealing cap, and the end cap is connected to the end cap through a movable connection structure .

优选的，所述活动连接结构包括端盖的外壁连接的多个限位块，所述限位块呈环形阵列分布，所述密封盖的上端固定连接有多个勾板，所述勾板呈环形阵列分布，所述勾板为L形，所述勾板的下端与密封盖的上端面垂直连接，所述限位块均卡在其中一个所述勾板的下部，所述勾板远离密封盖的一端下部连接有勾尖，所述勾尖呈等腰梯形，所述勾尖的底部为平行于密封盖上端面的平面。Preferably, the movable connection structure includes a plurality of limit blocks connected to the outer wall of the end cover, the limit blocks are distributed in an annular array, and a plurality of hook plates are fixedly connected to the upper end of the sealing cover, and the hook plates are in the shape of a ring. Circular array distribution, the hook plate is L-shaped, the lower end of the hook plate is vertically connected with the upper end surface of the sealing cover, the limit blocks are all clamped at the lower part of one of the hook plates, and the hook plate is far away from the seal A hook point is connected to the lower part of one end of the cover, the hook point is in the shape of an isosceles trapezoid, and the bottom of the hook point is a plane parallel to the upper end surface of the sealing cover.

优选的，所述端盖的上端外缘垂直连接有环形的端板，所述端板的外缘环形阵列有第一防滑齿，所述密封盖的侧壁上环形阵列有第二防滑齿。Preferably, the outer edge of the upper end of the end cover is vertically connected with an annular end plate, the outer edge of the end plate is annularly arrayed with first anti-skid teeth, and the side wall of the sealing cover is annularly arrayed with second anti-slip teeth.

优选的，所述底座的侧壁连接有通管，所述通管上设有控制阀，所述控制阀为两通阀。Preferably, a through pipe is connected to the side wall of the base, and a control valve is provided on the through pipe, and the control valve is a two-way valve.

优选的，所述穿刺管的下端内部通过安装座安装有摄像模组，所述摄像模组的外部罩设有透明罩，所述透明罩通过螺纹与穿刺管的下端连接。Preferably, a camera module is installed inside the lower end of the puncture tube through a mounting seat, an outer cover of the camera module is provided with a transparent cover, and the transparent cover is connected with the lower end of the puncture tube through threads.

优选的，所述透明罩的下端设有顶尖，所述顶尖为正锥形。Preferably, the lower end of the transparent cover is provided with a tip, and the tip is a positive cone.

优选的，所述扇形板共设有六片，所述扇形板的圆形角为55°。Preferably, the fan-shaped plate is provided with six pieces in total, and the circular angle of the fan-shaped plate is 55°.

与现有技术相比，本发明具有以下有益效果：本发明在套管的上端设置了底座，底座的内部设置了多个扇形板，扇形板与底座的内壁之间设置了弹性圈，通过弹性圈提供的弹力能够使得扇形板向中间靠拢，从而对手术器械进行夹紧，从而有效填充手术器械与底座内壁之间的间隙，且扇形板之间的弹力布以及弹性圈均具有一定的弹性形变的能力，从而能够适用于不同直径大小的手术器械，且扇形板的端部设置了斜块，利用斜块上的斜面能够在放入手术器械时自动对各个扇形板进行撑开而无需手动操作，解决了现有技术中操作不便的问题。Compared with the prior art, the present invention has the following beneficial effects: the present invention is provided with a base at the upper end of the sleeve, a plurality of sector-shaped plates are arranged inside the base, and an elastic ring is arranged between the sector-shaped plates and the inner wall of the base. The elastic force provided by the ring can make the fan-shaped plate close to the middle, so as to clamp the surgical instrument, so as to effectively fill the gap between the surgical instrument and the inner wall of the base, and the elastic cloth and elastic ring between the fan-shaped plates have certain elastic deformation. Therefore, it can be applied to surgical instruments of different diameters, and the end of the fan-shaped plate is provided with an inclined block. The inclined surface on the inclined block can automatically stretch each fan-shaped plate when the surgical instrument is put in without manual operation. , which solves the problem of inconvenient operation in the prior art.

附图说明Description of drawings

图1为本发明的结构示意图；Fig. 1 is the structural representation of the present invention;

图2为图1中A处的结构示意图；Fig. 2 is the structural representation at A place in Fig. 1;

图3为本发明的穿刺管的结构示意图；Fig. 3 is the structural representation of the puncture tube of the present invention;

图4为本发明的底座的剖视图；Fig. 4 is the sectional view of the base of the present invention;

图5为本发明的弹性圈的结构示意图。FIG. 5 is a schematic structural diagram of the elastic ring of the present invention.

图中：管体1、底座2、密封盖3、端盖4、第一防滑齿5、端板6、环形槽7、控制阀8、通管9、勾板10、勾尖11、限位块12、第二防滑齿13、穿刺管14、摄像模组15、顶尖16、透明罩17、斜块18、限位板19、扇形板20、弹性圈21、弹力布22。In the figure:pipe body 1,base 2,sealing cover 3,end cover 4, firstanti-skid tooth 5,end plate 6,annular groove 7,control valve 8, throughpipe 9,hook plate 10,hook tip 11,limit Block 12 , secondanti-skid tooth 13 ,puncture tube 14 ,camera module 15 ,top 16 ,transparent cover 17 ,inclined block 18 ,limit plate 19 ,sector plate 20 ,elastic ring 21 ,elastic cloth 22 .

具体实施方式Detailed ways

以下描述用于揭露本发明以使本领域技术人员能够实现本发明。以下描述中的优选实施例只作为举例，本领域技术人员可以想到其他显而易见的变型。The following description serves to disclose the invention to enable those skilled in the art to practice the invention. The preferred embodiments described below are given by way of example only, and other obvious modifications will occur to those skilled in the art.

如图1-图5所示的一种腹腔手术用穿刺器械，包括管体1，管体1内插装有穿刺管14，管体1的上部连接底座2，底座2的截面呈圆形，底座2的中部间隔设有两个相互平行的限位板19，限位板19呈环形，限位板19的外缘与底座2的内壁垂直连接，两个限位板19之间夹持有多个扇形板20，扇形板20的上下表面分别与两个限位板19滑动配合，相邻扇形板20的侧边之间连接有弹力布22，扇形板20的外缘共同包围有弹性圈21，弹性圈21设在两个限位板19之间，弹性圈21的外缘与底座2的内壁相抵，扇形板20的内缘上部固定连接有斜块18，斜块18的内侧为倾斜面且倾斜方向为靠近扇形板20内缘的一侧低于另一侧。弹性圈21上设有多个同心的环形槽7，环形槽7等距设置。通过设置环形槽7能够增加弹性圈21的伸缩能力，提高其弹性形变的能力。As shown in Figures 1-5, a puncture instrument for abdominal surgery includes atube body 1, apuncture tube 14 is inserted in thetube body 1, the upper part of thetube body 1 is connected to abase 2, and the cross-section of thebase 2 is circular, The middle of thebase 2 is provided with two mutuallyparallel limit plates 19, thelimit plates 19 are annular, the outer edge of thelimit plate 19 is vertically connected with the inner wall of thebase 2, and the twolimit plates 19 are sandwiched between the twolimit plates 19. A plurality of fan-shaped plates 20, the upper and lower surfaces of the fan-shaped plates 20 are slidably matched with the twolimit plates 19, theelastic cloth 22 is connected between the sides of the adjacent fan-shaped plates 20, and the outer edges of the fan-shaped plates 20 are jointly surrounded by anelastic ring 21. Theelastic ring 21 is arranged between the twolimit plates 19, the outer edge of theelastic ring 21 is in contact with the inner wall of thebase 2, the upper part of the inner edge of thesector plate 20 is fixedly connected with theinclined block 18, and the inner side of theinclined block 18 is inclined. and the inclined direction is that one side close to the inner edge of thesector plate 20 is lower than the other side. Theelastic ring 21 is provided with a plurality of concentricannular grooves 7, and theannular grooves 7 are arranged at equal distances. By arranging theannular groove 7, the expansion and contraction capability of theelastic ring 21 can be increased, and the elastic deformation capability thereof can be improved.

通过弹性圈21提供的弹力能够使得扇形板20向中间靠拢，从而对手术器械进行夹紧，从而有效填充手术器械与底座2内壁之间的间隙，且扇形板20之间的弹力布22以及弹性圈21均具有一定的弹性形变的能力，从而能够适用于不同直径大小的手术器械，且扇形板20的端部设置了斜块18，利用斜块18上的斜面能够在放入手术器械时自动对各个扇形板20进行撑开而无需手动操作，解决了现有技术中操作不便的问题，限位板19用来对扇形板20的移动进行导向，使得扇形板20能够保持垂直底座2内壁的状态。扇形板20共设有六片，扇形板20的圆形角为55°。扇形板20优选为六片，也可以采用其他数量的设计。The elastic force provided by theelastic ring 21 can make the fan-shaped plate 20 move toward the middle, so as to clamp the surgical instrument, thereby effectively filling the gap between the surgical instrument and the inner wall of thebase 2, and theelastic cloth 22 between the fan-shaped plates 20 and elastic Therings 21 all have a certain elastic deformation ability, so that they can be applied to surgical instruments of different diameters, and the end of the fan-shaped plate 20 is provided with aninclined block 18, and the inclined surface on theinclined block 18 can be used automatically when the surgical instrument is placed. Each fan-shaped plate 20 is stretched without manual operation, which solves the problem of inconvenient operation in the prior art. Thelimit plate 19 is used to guide the movement of the fan-shaped plate 20, so that the fan-shaped plate 20 can maintain the vertical direction of the inner wall of thebase 2. state. The fan-shaped plate 20 is provided with six pieces in total, and the rounded angle of the fan-shaped plate 20 is 55°. The number of fan-shaped plates 20 is preferably six, and other designs can also be used.

底座2的上部螺纹连接有密封盖3，穿刺管14的上端连接有端盖4，端盖4的底面抵住密封盖3的上端，端盖4通过活动连接结构与端盖4连接。活动连接结构包括端盖4的外壁连接的多个限位块12，限位块12呈环形阵列分布，密封盖3的上端固定连接有多个勾板10，勾板10呈环形阵列分布，勾板10为L形，勾板10的下端与密封盖3的上端面垂直连接，限位块12均卡在其中一个勾板10的下部，勾板10远离密封盖3的一端下部连接有勾尖11，勾尖11呈等腰梯形，勾尖11的底部为平行于密封盖3上端面的平面。Asealing cover 3 is threadedly connected to the upper part of thebase 2, and anend cover 4 is connected to the upper end of thepuncture tube 14. The movable connection structure includes a plurality oflimit blocks 12 connected to the outer wall of theend cover 4. Thelimit blocks 12 are distributed in an annular array. The upper end of the sealingcover 3 is fixedly connected with a plurality ofhook plates 10. Thehook plates 10 are distributed in an annular array. Theplate 10 is L-shaped, the lower end of thehook plate 10 is vertically connected with the upper end surface of thesealing cover 3, thelimit blocks 12 are all stuck in the lower part of one of thehook plates 10, and thehook plate 10 is connected to the lower part of the end of thehook plate 10 away from thesealing cover 3 with a hook tip. 11. Thehook tip 11 is an isosceles trapezoid, and the bottom of thehook tip 11 is a plane parallel to the upper end surface of thesealing cover 3 .

通过密封盖3实现对底座2上部的密封，密封盖3能够通过螺纹松开，方便手术中取出较大的样品，通过勾板10与限位块12的配合能够对端盖4进行连接限位，而通过旋转端盖4使得限位块12从而勾板10的底部脱出即可取下端盖4，勾板10端部设置的勾尖11设置为等腰梯形能够对限位块12的卡入和脱出进行引导，勾板10本身为具有一定弹性的结构，只需要用力旋转端盖4即可实现限位块12的卡入和脱出，操作方便。The upper part of thebase 2 is sealed by thesealing cover 3, and thesealing cover 3 can be loosened through the thread, which is convenient for taking out larger samples during the operation. , and theend cover 4 can be removed by rotating theend cover 4 to make thelimit block 12 so that the bottom of thehook plate 10 is released. Thehook plate 10 itself has a certain elastic structure, and only needs to forcefully rotate theend cover 4 to realize the locking and disengagement of thelimit block 12, and the operation is convenient.

端盖4的上端外缘垂直连接有环形的端板6，端板6的外缘环形阵列有第一防滑齿5，密封盖3的侧壁上环形阵列有第二防滑齿13。底座2的侧壁连接有通管9，通管9上设有控制阀8，控制阀8为两通阀。穿刺管14的下端内部通过安装座安装有摄像模组15，摄像模组15的外部罩设有透明罩17，透明罩17通过螺纹与穿刺管14的下端连接。透明罩17的下端设有顶尖16，顶尖16为正锥形。通过设置摄像模组15能够方便对穿刺器械的置入进行准确的控制。Anannular end plate 6 is vertically connected to the outer edge of the upper end of theend cover 4 , the outer edge of theend plate 6 is annularly arrayed with firstanti-skid teeth 5 , and the side wall of thesealing cover 3 is annularly arrayed with secondanti-slip teeth 13 . A throughpipe 9 is connected to the side wall of thebase 2, and acontrol valve 8 is arranged on thethrough pipe 9, and thecontrol valve 8 is a two-way valve. Thecamera module 15 is installed inside the lower end of thepuncture tube 14 through the mounting seat. The outer cover of thecamera module 15 is provided with atransparent cover 17 which is connected to the lower end of thepuncture tube 14 through threads. The lower end of thetransparent cover 17 is provided with a top 16, and the top 16 is a positive cone. By arranging thecamera module 15, the insertion of the puncture instrument can be conveniently and accurately controlled.

以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是本发明的原理，在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明的范围内。本发明要求的保护范围由所附的权利要求书及其等同物界定。The foregoing has shown and described the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions describe only the principles of the present invention. Without departing from the spirit and scope of the present invention, there are various Variations and improvements are intended to fall within the scope of the claimed invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims (9)

Translated fromChinese

1.一种腹腔手术用穿刺器械，包括管体(1)，所述管体(1)内插装有穿刺管(14)，其特征在于，所述管体(1)的上部连接底座(2)，所述底座(2)的截面呈圆形，所述底座(2)的中部间隔设有两个相互平行的限位板(19)，所述限位板(19)呈环形，所述限位板(19)的外缘与底座(2)的内壁垂直连接，两个所述限位板(19)之间夹持有多个扇形板(20)，所述扇形板(20)的上下表面分别与两个限位板(19)滑动配合，相邻所述扇形板(20)的侧边之间连接有弹力布(22)，所述扇形板(20)的外缘共同包围有弹性圈(21)，所述弹性圈(21)设在两个限位板(19)之间，所述弹性圈(21)的外缘与底座(2)的内壁相抵，所述扇形板(20)的内缘上部固定连接有斜块(18)，所述斜块(18)的内侧为倾斜面且倾斜方向为靠近扇形板(20)内缘的一侧低于另一侧。1. A puncture instrument for abdominal surgery, comprising a tube body (1), wherein a puncture tube (14) is inserted in the tube body (1), wherein the upper part of the tube body (1) is connected to a base ( 2), the cross section of the base (2) is circular, the middle of the base (2) is spaced with two mutually parallel limit plates (19), the limit plates (19) are annular, so The outer edge of the limit plate (19) is vertically connected with the inner wall of the base (2), and a plurality of sector plates (20) are clamped between the two limit plates (19). The upper and lower surfaces of the fan-shaped plates (20) are respectively slidably matched with the two limit plates (19), elastic cloths (22) are connected between the sides of the adjacent fan-shaped plates (20), and the outer edges of the fan-shaped plates (20) are jointly surrounded by There is an elastic ring (21), the elastic ring (21) is arranged between two limit plates (19), the outer edge of the elastic ring (21) is in contact with the inner wall of the base (2), and the fan-shaped plate An inclined block (18) is fixedly connected to the upper part of the inner edge of the (20), the inner side of the inclined block (18) is an inclined surface and the inclined direction is that one side close to the inner edge of the sector plate (20) is lower than the other side.2.根据权利要求1所述的一种腹腔手术用穿刺器械，其特征在于，所述弹性圈(21)上设有多个同心的环形槽(7)，所述环形槽(7)等距设置。2 . The puncture instrument for abdominal surgery according to claim 1 , wherein a plurality of concentric annular grooves ( 7 ) are provided on the elastic ring ( 21 ), and the annular grooves ( 7 ) are equidistant. 3 . set up.3.根据权利要求1所述的一种腹腔手术用穿刺器械，其特征在于，所述底座(2)的上部螺纹连接有密封盖(3)，所述穿刺管(14)的上端连接有端盖(4)，所述端盖(4)的底面抵住密封盖(3)的上端，所述端盖(4)通过活动连接结构与端盖(4)连接。3. A puncture instrument for abdominal surgery according to claim 1, wherein a sealing cover (3) is threadedly connected to the upper part of the base (2), and an end is connected to the upper end of the puncture tube (14). A cover (4), the bottom surface of the end cover (4) is pressed against the upper end of the sealing cover (3), and the end cover (4) is connected with the end cover (4) through a movable connection structure.4.根据权利要求3所述的一种腹腔手术用穿刺器械，其特征在于，所述活动连接结构包括端盖(4)的外壁连接的多个限位块(12)，所述限位块(12)呈环形阵列分布，所述密封盖(3)的上端固定连接有多个勾板(10)，所述勾板(10)呈环形阵列分布，所述勾板(10)为L形，所述勾板(10)的下端与密封盖(3)的上端面垂直连接，所述限位块(12)均卡在其中一个所述勾板(10)的下部，所述勾板(10)远离密封盖(3)的一端下部连接有勾尖(11)，所述勾尖(11)呈等腰梯形，所述勾尖(11)的底部为平行于密封盖(3)上端面的平面。4. A puncture instrument for abdominal surgery according to claim 3, characterized in that the movable connection structure comprises a plurality of limit blocks (12) connected to the outer walls of the end caps (4), the limit blocks (12) distributed in an annular array, the upper end of the sealing cover (3) is fixedly connected with a plurality of hook plates (10), the hook plates (10) are distributed in an annular array, and the hook plates (10) are L-shaped , the lower end of the hook plate (10) is vertically connected with the upper end surface of the sealing cover (3), and the limit blocks (12) are all stuck at the lower part of one of the hook plates (10), and the hook plate ( 10) A hook tip (11) is connected to the lower part of one end away from the sealing cover (3), the hook tip (11) is in the shape of an isosceles trapezoid, and the bottom of the hook tip (11) is parallel to the upper end face of the sealing cover (3). plane.5.根据权利要求3所述的一种腹腔手术用穿刺器械，其特征在于，所述端盖(4)的上端外缘垂直连接有环形的端板(6)，所述端板(6)的外缘环形阵列有第一防滑齿(5)，所述密封盖(3)的侧壁上环形阵列有第二防滑齿(13)。5. A puncture instrument for abdominal surgery according to claim 3, characterized in that an annular end plate (6) is vertically connected to the outer edge of the upper end of the end cover (4), and the end plate (6) There are first anti-skid teeth (5) in an annular array on the outer edge of the sealing cover (3), and second anti-skid teeth (13) in an annular array on the side wall of the sealing cover (3).6.根据权利要求1所述的一种腹腔手术用穿刺器械，其特征在于，所述底座(2)的侧壁连接有通管(9)，所述通管(9)上设有控制阀(8)，所述控制阀(8)为两通阀。6. A puncture instrument for abdominal surgery according to claim 1, characterized in that a through pipe (9) is connected to the side wall of the base (2), and a control valve is provided on the through pipe (9). (8), the control valve (8) is a two-way valve.7.根据权利要求1所述的一种腹腔手术用穿刺器械，其特征在于，所述穿刺管(14)的下端内部通过安装座安装有摄像模组(15)，所述摄像模组(15)的外部罩设有透明罩(17)，所述透明罩(17)通过螺纹与穿刺管(14)的下端连接。7. A puncture instrument for abdominal surgery according to claim 1, wherein a camera module (15) is installed inside the lower end of the puncture tube (14) through a mounting seat, and the camera module (15) ) is provided with a transparent cover (17), the transparent cover (17) is connected with the lower end of the puncture tube (14) through threads.8.根据权利要求7所述的一种腹腔手术用穿刺器械，其特征在于，所述透明罩(17)的下端设有顶尖(16)，所述顶尖(16)为正锥形。8 . The puncture instrument for abdominal surgery according to claim 7 , wherein the lower end of the transparent cover ( 17 ) is provided with a tip ( 16 ), and the tip ( 16 ) is a positive cone. 9 .9.根据权利要求7所述的一种腹腔手术用穿刺器械，其特征在于，所述扇形板(20)共设有六片，所述扇形板(20)的圆形角为55°。9 . The puncture instrument for abdominal surgery according to claim 7 , wherein the fan-shaped plate ( 20 ) is provided with six pieces in total, and the circular angle of the fan-shaped plate ( 20 ) is 55°. 10 .

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