技术领域technical field
本发明属于医疗器械技术领域，具有涉及一种腹腔镜冲洗吸引器。The invention belongs to the technical field of medical instruments, and relates to a laparoscopic flushing aspirator.
背景技术Background technique
随着科技的进步，腹腔镜手术有了很大的发展，具有微创效果的腹腔镜在腹腔疾病的治疗和诊断上发挥重大的作用。腹腔镜手术因其具有切口小、疼痛小、恢复快、术后瘢痕小等优点，深受患者的欢迎。在腹腔镜手术中，医务人员要完成一系列动作，包括切割剥离、电凝止血、冲洗、吸血等，其中，手术时必须进行腹腔冲洗，再将洗液吸引掉。With the advancement of science and technology, laparoscopic surgery has developed greatly, and laparoscopy with minimally invasive effects plays an important role in the treatment and diagnosis of celiac diseases. Laparoscopic surgery is popular among patients because of its advantages of small incision, less pain, faster recovery, and less postoperative scar. In laparoscopic surgery, medical personnel have to complete a series of actions, including cutting and stripping, electrocoagulation to stop bleeding, flushing, blood sucking, etc. Among them, peritoneal washing must be performed during the operation, and then the lotion is sucked away.
但是，现有技术中腹腔镜冲洗吸引器的通水管(吸引管和\或冲洗管)为一长直管，使用中存在如下问题：一是冲洗吸引器因拿持部位靠后，影响其前端管口与腹腔切口的对准，延长插入操作时间，且需双手配合拿持；二是插入或抽出时，迫使医护人员要走动移位，从而增加医护人员的工作强度，影响其他医护人员的站位；三是，由于操作开关设置在拿持部位，动刀医生不能兼顾使用该冲洗吸引器，只能由他人代为处理，影响手术进程和使用效率。上述这些情况均会给术中的医生带来了操作上的不便。However, in the prior art, the water pipe (suction tube and/or flushing tube) of the laparoscopic flushing aspirator is a long straight pipe, and there are the following problems in use: one is that the front end of the flushing aspirator is affected due to the rearward position of the flushing aspirator The alignment of the nozzle and the abdominal incision prolongs the insertion operation time, and both hands are required to hold it; the second is that when inserting or withdrawing, the medical staff is forced to move and shift, thereby increasing the work intensity of the medical staff and affecting the standing of other medical staff. The third is that because the operating switch is set at the holding position, the surgeon who operates the knife cannot use the flushing suction device at the same time, and can only be handled by others, which affects the operation process and use efficiency. Above-mentioned these situations all can bring operational inconvenience to the doctor in operation.
发明内容Contents of the invention
有鉴于此，本发明的目的在于提供一种腹腔镜冲洗吸引器，以实现冲洗吸引器具有可伸缩的功能，提高医务人员在术中的可操作性，具有结构简单易行，操作方便、可靠的优点。In view of this, the object of the present invention is to provide a laparoscopic flushing aspirator, so as to realize the retractable function of the flushing aspirator, improve the operability of medical personnel during the operation, and have the advantages of simple structure, convenient operation and reliability. The advantages.
为达到上述目的，本发明是通过以下技术方案来实现的：To achieve the above object, the present invention is achieved through the following technical solutions:
本发明提供一种腹腔镜冲洗吸引器，包括控制阀和通过连接管与控制阀连通的通水管，所述通水管包括有内管和套接在内管外的可伸缩的套管，所述内管通过张紧螺母与连接管固定相连；所述冲洗吸引器还包括套管尾端可与张紧螺母固定连接的定位机构Ⅰ和可与内管前端固定连接的定位机构Ⅱ；所述定位机构Ⅰ包括在张紧螺母上且与套管尾端相对一端端面设置有一圈组装密封件的容置凹槽，所述套管尾端被密封件密封连接在容置凹槽内。The invention provides a laparoscopic flushing aspirator, which includes a control valve and a water pipe connected to the control valve through a connecting pipe, the water pipe includes an inner tube and a telescopic sleeve sleeved outside the inner tube. The inner tube is fixedly connected with the connecting pipe through the tension nut; the flushing suction device also includes a positioning mechanism I which can be fixedly connected with the tension nut at the end of the casing and a positioning mechanism II which can be fixedly connected with the front end of the inner tube; the positioning Mechanism I includes an accommodating groove with a ring of assembled seals on the tension nut and on the end surface opposite to the tail end of the casing, and the tail end of the casing is sealed and connected in the accommodating groove by the seal.
进一步，所述容置凹槽截面设置为梯形结构，所述密封件设置为U型或C型或门型密封圈且安装在容置凹槽内，所述套管尾端被包裹设置在U型或C型或门型密封圈的U型或C型或门型槽内。Further, the section of the accommodating groove is set as a trapezoidal structure, the seal is set as a U-shaped or C-shaped or door-shaped sealing ring and installed in the accommodating groove, and the tail end of the sleeve is wrapped and arranged in the U In the U-shaped or C-shaped or door-shaped groove of the type or C-type or door-type sealing ring.
进一步，所述定位机构Ⅱ包括设置在套管尾端内腔中固定连接内管前端的张紧片。Further, the positioning mechanism II includes a tension piece arranged in the lumen at the rear end of the sleeve and fixedly connected to the front end of the inner tube.
进一步，所述定位机构Ⅱ包括设置在套管尾端的锥形段和设置在内管前端的喇叭口段，所述锥形段内壁与喇叭口段外壁过盈配合。Further, the positioning mechanism II includes a tapered section arranged at the tail end of the casing and a bell mouth section arranged at the front end of the inner tube, the inner wall of the tapered section is in interference fit with the outer wall of the bell mouth section.
进一步，所述内管为两根，包括呈并排状且相互之间间隔一定距离相向设置的冲洗管和吸引管，所述冲洗管与控制阀的冲洗接口连通，所述吸引管与控制阀的吸引接口连通；所述冲洗管和吸引管具有相同的形状和大小，且其截面为D形结构，所述冲洗管和吸引管的D形结构截面的直线段相对布置。Further, there are two inner pipes, including flushing pipes and suction pipes arranged side by side and facing each other at a certain distance, the flushing pipes communicate with the flushing interface of the control valve, and the suction pipes communicate with the The suction interface is connected; the flushing tube and the suction tube have the same shape and size, and their cross-section is a D-shaped structure, and the straight sections of the D-shaped cross-sections of the flushing tube and the suction tube are arranged oppositely.
进一步，所述定位机构Ⅱ包括设置在套管尾端内腔中间的固定块，所述冲洗管和/或吸引管前端直线部外壁上设置有沿其轴向方向具有一定导向锥度且与固定块滑动配合的导向段，所述固定块在距套管尾端管口一定距离设置，所述导向段在其顶部的截面厚度大于在其根部的截面厚度。Further, the positioning mechanism II includes a fixed block arranged in the middle of the inner cavity of the tail end of the casing, and the outer wall of the straight part of the front end of the flushing tube and/or the suction tube is provided with a guide taper along its axial direction and aligned with the fixed block. As for the sliding fit guide section, the fixed block is set at a certain distance from the nozzle at the tail end of the casing, and the section thickness of the guide section at its top is greater than that at its root.
进一步，所述定位机构Ⅱ还包括设置在冲洗管和吸引管两端头间隙处的基座，所述固定块在与两个基座一一相对的一端端面上设有定位插销，所述定位插销通过螺纹与固定块相连，两个所述基座设有与两个所述定位插销分别相互插接配合的销孔，所述定位插销与销孔过盈配合。Further, the positioning mechanism II also includes a base arranged at the gap between the two ends of the flushing tube and the suction tube, and the fixed block is provided with a positioning pin on the end surface opposite to the two bases, and the positioning The bolts are connected to the fixed block through threads, and the two bases are provided with pin holes respectively inserted and matched with the two positioning bolts, and the positioning bolts are in interference fit with the pin holes.
进一步，所述套管中间通过隔板形成有两个半圆形结构的容置内腔，用于分别容纳冲洗管和吸引管；所述定位机构Ⅱ包括设置在冲洗管和/或吸引管前端直线部上的定位头Ⅰ和设置在套管尾端隔板上且卡合在定位头Ⅰ上的定位头Ⅱ，所述定位头Ⅰ设置有凹凸结构，所述定位头Ⅱ设置有与凹凸结构卡合配合的凸凹结构。Further, two semicircular accommodating cavities are formed in the middle of the sleeve through a partition for respectively accommodating the irrigation tube and the suction tube; the positioning mechanism II includes a The positioning head I on the straight line part and the positioning head II arranged on the casing tail end partition and snapped on the positioning head I, the positioning head I is provided with a concave-convex structure, and the positioning head II is provided with a concave-convex structure Concave-concave structure for a snap fit.
进一步，冲洗吸引器还包括设置在内管前段外壁上一组装密封圈的密封槽，所述密封圈为O型密封圈。Further, the flushing aspirator also includes a sealing groove for assembling a sealing ring arranged on the outer wall of the front section of the inner pipe, and the sealing ring is an O-ring.
进一步，所述套管前端设有一个内部中空的圆弧状冲吸头，所述冲吸头顶端及侧壁设有多个冲吸孔，其尾端内壁与套管前端外壁螺纹连接。Further, the front end of the casing is provided with a hollow arc-shaped suction head, the top and side walls of the suction head are provided with a plurality of suction holes, and the inner wall of the tail end is threadedly connected with the outer wall of the front end of the casing.
本发明的优点在于：The advantages of the present invention are:
1、本发明根据需要决定是否对套管进行伸缩使用，其缩短和伸长简单、方便，且固定密封效果好，具有结构简单、易行、合理、巧妙，操作方便、可靠的优点。1. The present invention decides whether to stretch the casing according to the needs. Its shortening and elongation are simple and convenient, and the fixing and sealing effect is good. It has the advantages of simple structure, easy operation, reasonable and ingenious, convenient and reliable operation.
2、本发明套管在缩短状态可提高吸引效率，缩短冲洗吸引时间，进而缩短整个手术进程。2. In the shortened state, the cannula of the present invention can improve suction efficiency, shorten flushing and suction time, and shorten the entire operation process.
3、本发明加装此冲吸头后，可避免吸引过程中吸入组织，保持冲洗吸引器通畅，也避免将肠管等组织、脏器吸入管口，造成不必要的损伤、出血。3. After the present invention is equipped with the flushing suction head, it can avoid sucking tissue during the suction process, keep the flushing suction device unobstructed, and also avoid sucking tissues and organs such as intestines into the mouth of the nozzle, causing unnecessary damage and bleeding.
4、本发明套管可为一次性使用产品，不会给病人造成二次损伤，也不会对病人手术造成污染。4. The cannula of the present invention can be a one-time use product, which will not cause secondary damage to the patient and will not cause pollution to the patient's operation.
5、本发明可使套管前端管口与腹腔切口的快速对准，缩短插入操作时间；还能使插入或抽出时，医护人员不必走动移位，从而减轻医护人员的工作强度；另外，通过缩短操作，动刀医生能兼顾使用该冲洗吸引器，可不必由他人代为协助，提高手术进程和使用效率。5. The present invention can quickly align the front end of the cannula with the abdominal incision, shorten the insertion operation time; it can also prevent the medical staff from moving and shifting when inserting or withdrawing, thereby reducing the work intensity of the medical staff; in addition, through The operation is shortened, and the operating doctor can use the flushing suction device at the same time, without the assistance of others, so as to improve the operation process and use efficiency.
本发明的其他优点、目标和特征在某种程度上将在随后的说明书中进行阐述，并且在某种程度上，基于对下文的考察研究对本领域技术人员而言将是显而易见的，或者可以从本发明的实践中得到教导。本发明的目标和其他优点可以通过下面的说明书来实现和获得。Other advantages, objects and features of the present invention will be set forth in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the investigation and research below, or can be obtained from It is taught in the practice of the present invention. The objects and other advantages of the invention may be realized and attained by the following specification.
附图说明Description of drawings
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步的详细描述，其中：In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings, wherein:
图1为本发明冲洗吸引器结构一的示意图；Fig. 1 is the schematic diagram of structure one of flushing aspirator of the present invention;
图2为本发明冲洗吸引器结构二的示意图；Fig. 2 is the schematic diagram of structure two of the flushing aspirator of the present invention;
图3为图2中部分结构的分解示意图；Fig. 3 is an exploded schematic diagram of part of the structure in Fig. 2;
图4为本发明冲洗吸引器中具有两个内腔的套管在伸长状态下与冲洗管和吸引管前端连接的局部结构立体示意图；Fig. 4 is a three-dimensional schematic diagram of the partial structure of the sleeve tube with two inner cavities in the flushing aspirator of the present invention connected to the front end of the flushing tube and the suction tube in an elongated state;
附图标记：1-控制阀，101-冲洗接口，102-吸引接口；2-连接管；3-内管，301-冲洗管，302-吸引管；4-套管；5-张紧螺母，501-容置凹槽；6-张紧片；7-密封圈；8-冲吸头；9-冲吸孔；10-固定块；11-基座；12-定位插销；13-销孔；14-隔板；15-定位头Ⅰ；16-定位头Ⅱ。Reference signs: 1-control valve, 101-flushing interface, 102-suction interface; 2-connecting pipe; 3-inner pipe, 301-rinsing pipe, 302-suction pipe; 4-sleeve; 5-tension nut, 501-Accommodating groove; 6-Tension piece; 7-Sealing ring; 8-Punching suction head; 9-Punching suction hole; 10-Fixer block; 11-Base; 14-partition; 15-positioning head Ⅰ; 16-positioning head Ⅱ.
具体实施方式Detailed ways
以下将对本发明的优选实施例进行详细的描述；应当理解，优选实施例仅为了说明本发明，而不是为了限制本发明的保护范围。The preferred embodiments of the present invention will be described in detail below; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.
实施例一：Embodiment one:
如图1所示，一种腹腔镜冲洗吸引器，包括控制阀1和通过连接管2与控制阀1连通的通水管，所述控制阀1分别设有冲洗接口101和吸引接口102，所述通水管包括内管3和套接在内管3外的可伸缩的套管4，这样可使套管4相对于内管3实施向外伸长或向内缩短的工作；所述内管3通过张紧螺母5与连接管2固定相连，这样只需旋转张紧螺母5即可将内管3与连接管2固接，操作方便可靠；所述冲洗吸引器还包括套管4尾端可与张紧螺母5固定连接的定位机构Ⅰ和可与内管3前端固定连接的定位机构Ⅱ；所述定位机构Ⅰ包括在张紧螺母5上且与套管4尾端相对一端端面上设置有一圈组装密封件(未画出)的容置凹槽501，这样只需前后插接套管4即可将其插接固定连接在张紧螺母5端面上，套管4尾端被密封件密封连接在容置凹槽501内，容置凹槽501截面设置为梯形结构且与套管4尾端过盈配合，这样不仅可方便套管4尾端插入梯形机构的容置凹槽501，且可在一定程度上保证其装配精度的情况下降低加工精度，还可保证套管4处于缩短状态时，整个通水管的密闭性，确保该冲洗吸引器能够正常冲洗或吸引；所述定位机构Ⅱ包括设置在套管4尾端内腔中固定连接内管3前端的张紧片6，这样只需旋转套管4即可将其旋转固定连接在内管3前端上，同时设置在内管3前段靠近其顶部的外壁上一圈组装密封圈7的密封槽(未画出)，所述密封圈7为O型密封圈，这样可进一步保证套管4处于伸长状态时整个通水管的密闭性，确保该冲洗吸引器能够正常冲洗或吸引。As shown in Figure 1, a laparoscopic flushing aspirator includes a control valve 1 and a water pipe connected to the control valve 1 through a connecting pipe 2, the control valve 1 is respectively provided with a flushing interface 101 and a suction interface 102, the The water pipe includes an inner tube 3 and a telescopic sleeve 4 sleeved outside the inner tube 3, so that the sleeve 4 can be extended or shortened relative to the inner tube 3; the inner tube 3 The tension nut 5 is fixedly connected with the connection pipe 2, so that the inner pipe 3 and the connection pipe 2 can be fixedly connected only by rotating the tension nut 5, and the operation is convenient and reliable; The positioning mechanism I fixedly connected with the tension nut 5 and the positioning mechanism II which can be fixedly connected with the front end of the inner tube 3; the positioning mechanism I is included on the tension nut 5 and is provided with a The accommodating groove 501 of the seal (not shown) is assembled with the ring, so that only the sleeve 4 needs to be plugged in front and back, and it can be plugged and fixedly connected to the end surface of the tension nut 5, and the tail end of the sleeve 4 is sealed by the seal Connected in the accommodating groove 501, the section of the accommodating groove 501 is set as a trapezoidal structure and interferes with the tail end of the sleeve 4, so that not only the tail end of the sleeve 4 can be easily inserted into the accommodating groove 501 of the trapezoidal mechanism, but also It can reduce the processing accuracy while ensuring its assembly accuracy to a certain extent, and can also ensure the airtightness of the entire water pipe when the casing 4 is in the shortened state, so as to ensure that the flushing suction device can flush or attract normally; the positioning mechanism II It includes a tension piece 6 fixedly connected to the front end of the inner tube 3, which is arranged in the inner cavity of the tail end of the sleeve tube 4, so that it can be rotated and fixedly connected to the front end of the inner tube 3 only by rotating the sleeve tube 4, and at the same time, it is arranged on the inner tube 3 On the outer wall of the front section near its top, there is a sealing groove (not shown) for assembling the sealing ring 7, and the sealing ring 7 is an O-shaped sealing ring, which can further ensure the airtightness of the whole water pipe when the sleeve pipe 4 is in the elongated state To ensure that the flushing suction device can flush or suction normally.
该冲洗吸引器的操作方式是：先将套管4套接在内管3上，然后内管3通过张紧螺母5的旋接作用与连接管2固接，手动使套管4相对于内管3向外(即图1中向右方向)伸长并到底后，顺时针旋转套管4，使其上的张紧片6卡紧在内管3前端上，并通过密封圈7使其与内管3前端密封连接，这样就完成了套管4的伸长动作；当逆时针旋转套管4时，使其上的张紧片6从内管3前端脱开后，将套管4相对于内管3向内(即图1中向左方向)缩短到底后，使套管4尾端插接在张紧螺母5上的容置凹槽501内，并通过密封件5使其与容置凹槽501密封连接，这样就完成了套管4的缩短动作，若需再伸长套管4时，这时只需向外拉拔套管4，使其尾端从张紧螺母5上的容置凹槽501内脱离，重复之前的动作。本发明根据需要决定是否对套管进行伸缩使用，其缩短和伸长简单、方便，且固定、密封效果好，具有结构简单、易行、合理、巧妙，操作方便、可靠的优点；而套管在缩短状态可提高吸引效率，缩短冲洗吸引时间，进而缩短整个手术进程。The operation method of the flushing suction device is: first, sleeve the sleeve 4 on the inner tube 3, then the inner tube 3 is fixedly connected with the connecting tube 2 through the screwing action of the tension nut 5, and manually make the sleeve 4 relative to the inner tube. After the tube 3 is extended outward (that is, to the right in Figure 1) and reaches the end, rotate the sleeve 4 clockwise so that the tension piece 6 on it is clamped on the front end of the inner tube 3, and the sealing ring 7 is used to make it Sealed connection with the front end of the inner tube 3, thus completing the elongation of the sleeve 4; when the sleeve 4 is rotated counterclockwise, the tension piece 6 on it is disengaged from the front end of the inner tube 3, and the sleeve 4 After shortening to the inside relative to the inner tube 3 (that is, to the left in FIG. 1 ), the tail end of the casing 4 is inserted into the accommodation groove 501 on the tension nut 5, and the sealing member 5 is used to connect it with the inner tube 3. The accommodating groove 501 is sealed and connected, so that the shortening action of the sleeve pipe 4 is completed. When the sleeve pipe 4 needs to be extended again, at this moment, only the sleeve pipe 4 needs to be drawn outwards so that the tail end is separated from the tension nut 5. Disengage from the accommodating groove 501 on the top, and repeat the previous action. The present invention decides whether to telescopically use the casing according to needs, and its shortening and elongation are simple and convenient, and the fixing and sealing effects are good, and it has the advantages of simple structure, easy operation, reasonableness, ingenuity, convenient operation and reliability; The shortened state can improve suction efficiency, shorten flushing and suction time, and shorten the entire operation process.
需要特别说明的是，所述套管4和内管3可采用无毒PVC或医用304、316不锈钢材料制成。本实施例中套管4可由无毒PVC材料制成一次性使用产品，这样不会给病人造成二次损伤，也不会对病人手术处造成污染。It should be noted that the sleeve 4 and the inner tube 3 can be made of non-toxic PVC or medical 304, 316 stainless steel. In this embodiment, the sleeve 4 can be made of non-toxic PVC material as a disposable product, which will not cause secondary damage to the patient and will not pollute the patient's surgical site.
本实施例中，密封件采用U型密封圈且安装在容置凹槽501内，套管4尾端被包裹设置在U型密封圈的U型槽内。这样，该结构有利于使容置凹槽501与套管4尾端进行密封，结构简单、可靠、成本低。当然在不同的实施例中，所述密封件还可以采C型或门型密封圈，同样可以达到上述的目的。In this embodiment, the seal adopts a U-shaped sealing ring and is installed in the accommodating groove 501 , and the tail end of the sleeve 4 is wrapped and arranged in the U-shaped groove of the U-shaped sealing ring. In this way, this structure is beneficial to seal the accommodating groove 501 and the tail end of the casing 4, and has a simple, reliable and low cost structure. Of course, in different embodiments, the sealing member can also adopt a C-shaped or door-shaped sealing ring, which can also achieve the above-mentioned purpose.
本实施例中，所述套管4前端设有一个内部中空的圆弧状冲吸头8，所述冲吸头8顶端及侧壁设有多个冲吸孔9，其尾端内壁与套管4前端外壁螺纹连接。这样，加装此冲吸头8后，可避免吸引过程中吸入组织，保持冲洗吸引器通畅，也避免将肠管等组织、脏器吸入管口，造成不必要的损伤、出血。其螺纹连接使两者连接具有可拆装性，且连接稳定；当然在不同的实施例中还可以采用插接的方式也可实现上述的目的。In this embodiment, the front end of the casing 4 is provided with a hollow arc-shaped flushing head 8, and the top and side walls of the flushing head 8 are provided with a plurality of flushing holes 9, and the inner wall of the tail end is in contact with the casing. The outer wall of the front end of the pipe 4 is threaded. Like this, after installing this flushing suction head 8 additionally, can avoid inhaling tissue in the suction process, keep flushing aspirator unobstructed, also avoid tissue such as intestinal canal, viscera suction mouthpiece, cause unnecessary damage, hemorrhage. The threaded connection makes the two connections detachable and stable; of course, in different embodiments, the above-mentioned purpose can also be achieved by using a plug-in method.
实施例二：Embodiment two:
本实施例与实施例一不同之处在于：所述定位机构Ⅱ包括设置在套管4尾端的锥形段(未画出)和设置在内管3前端的喇叭口段(未画出)，锥形段内壁具有与喇叭口段外壁相同的横截面，且两者之间通过过盈配合。这样只需套管4相对于内管3向外用力伸长即可使其锥形段内壁与内管3喇叭口段外壁配合定位，从而使其固定连接在内管3前端上，操作方便快捷，无需旋转套管4，同时配合定位机构Ⅰ可实现套管4在内管3外伸缩时作直线运动。The difference between this embodiment and Embodiment 1 is that the positioning mechanism II includes a tapered section (not shown) arranged at the tail end of the casing 4 and a bell mouth section (not shown) arranged at the front end of the inner tube 3, The inner wall of the tapered section has the same cross section as that of the outer wall of the bell mouth section, and the two are through interference fit. In this way, only the sleeve pipe 4 needs to be stretched outward relative to the inner pipe 3, so that the inner wall of the tapered section can be matched with the outer wall of the bell mouth section of the inner pipe 3, so that it is fixedly connected to the front end of the inner pipe 3, and the operation is convenient and fast. , there is no need to rotate the casing 4, and at the same time cooperate with the positioning mechanism I to realize the linear movement of the casing 4 when the inner tube 3 expands and contracts.
实施例三：Embodiment three:
如图2所示，本实施例与上述的实施例不同之处在于：所述内管3为两根，包括呈并排状且相互之间间隔一定距离设置的冲洗管301和吸引管302，冲洗管301与控制阀1的冲洗接口101连通，吸引管302与控制阀1的吸引接口102连通；冲洗管301和吸引管302具有相同的形状、大小，且其截面为D形结构，冲洗管301和吸引管302的D形结构截面的直线段相对布置，D形结构不仅可使冲洗管301和吸引管302被套装在套管4内，还可以在套管4内腔容量一定情况下最大化增大冲洗管301和吸引管302的管径，确保该冲洗吸引器获得良好的冲洗和吸引能力；所述定位机构Ⅱ包括设置在套管4尾端内腔中间的固定块10，所述固定块10在距套管4尾端管口一定距离通过螺接或铆接或焊接的方式设置，这样避免固定块10干涉套管4尾端与张紧螺母5上的容置凹槽501的定位连接和密封效果，而密封圈7同时套接在冲洗管301和吸引管302上，所述冲洗管301前端直线部外壁上设置有沿其轴向方向具有一定导向锥度且与固定块10滑动配合的导向段(未画出)，所述导向段在其顶部的截面厚度大于在其根部的截面厚度，且固定块10在与该密封圈7相对一端设有锥形结构，这样固定块10在随套管4向外伸长动作时方便其穿进密封圈7并利用固定块10与冲洗管301前端导向段滑动配合，使冲洗管301向外张开，使得冲洗管301、固定块10和吸引管302涨紧套管4内壁并压迫住密封圈7，从而使套管4在冲洗管301和吸引管302前端定位连接的同时具有良好密闭性。当然不同的实施例中，该导向段还可以设置在吸引管302前端或者同时在冲洗管301和吸引管302前端设置，同样可以达到上述的目的。As shown in Figure 2, the difference between this embodiment and the above-mentioned embodiment is that: the inner tube 3 is two, including a flushing tube 301 and a suction tube 302 arranged side by side and at a certain distance from each other. The pipe 301 communicates with the flushing port 101 of the control valve 1, and the suction pipe 302 communicates with the suction port 102 of the control valve 1; the flushing pipe 301 and the suction pipe 302 have the same shape and size, and their cross-section is a D-shaped structure, and the flushing pipe 301 Arranged opposite to the straight section of the D-shaped structural section of the suction tube 302, the D-shaped structure not only enables the flushing tube 301 and the suction tube 302 to be placed in the cannula 4, but also maximizes the inner cavity capacity of the cannula 4 under certain conditions Increase the diameter of the flushing tube 301 and the suction tube 302 to ensure that the flushing aspirator obtains good flushing and suction capabilities; the positioning mechanism II includes a fixed block 10 arranged in the middle of the inner cavity at the tail end of the casing 4, and the fixed The block 10 is set at a certain distance from the nozzle of the tail end of the casing 4 by screwing, riveting or welding, so as to prevent the fixed block 10 from interfering with the positioning connection between the tail end of the casing 4 and the accommodation groove 501 on the tension nut 5 and the sealing effect, and the sealing ring 7 is sleeved on the flushing pipe 301 and the suction pipe 302 at the same time, and the outer wall of the straight part of the front end of the flushing pipe 301 is provided with a guide taper along its axial direction and slidingly matched with the fixed block 10 Guide segment (not shown), the cross-sectional thickness of the guide segment at its top is greater than the cross-sectional thickness at its root, and the fixed block 10 is provided with a tapered structure at the end opposite to the sealing ring 7, so that the fixed block 10 is When the sleeve pipe 4 is extended outwards, it is convenient for it to penetrate the seal ring 7 and utilize the fixed block 10 to slide and cooperate with the front end guide section of the flushing pipe 301, so that the flushing pipe 301 is opened outwards, so that the flushing pipe 301, the fixed block 10 and the suction The tube 302 tightens the inner wall of the sleeve 4 and presses the sealing ring 7, so that the sleeve 4 has a good airtightness while the flushing tube 301 and the front end of the suction tube 302 are positioned and connected. Of course, in different embodiments, the guide section can also be arranged at the front end of the suction tube 302 or at the front ends of the irrigation tube 301 and the suction tube 302 at the same time, which can also achieve the above purpose.
实施例四：Embodiment four:
如图3所示，本实施例作为实施例三的进一步改进，所述定位机构Ⅱ还包括设置在冲洗管301和吸引管302两端头间隙处的基座11，靠近连接管2的基座11通过张紧螺母5的作用被卡固在冲洗管301和吸引管302端头之间间隙处，当然也可以通过螺接或焊接或铆接的方式使其固定设置在连接管2管口内腔的中间，而远离连接管2的基座11通过螺接的方式与冲洗管301和吸引管302固接；所述固定块10在与两个所述基座11一一相对的一端端面上设有定位插销12，定位插销12通过螺纹与固定块10相连，可方便拆卸；两个所述基座11设有与两个所述定位插销12分别相互插接配合的销孔13，定位插销12与销孔13过盈配合，这样套管4在伸长和缩短动作时，可由套管4上的固定块10与两端的基座11插接定位固接，达到进一步使套管4在冲洗管301和吸引管302两端头锁定连接的目的。进一步，所述定位插销12位锥形结构，这样方便插入和固定，优选的，所述锥形结构的外表面设置有防滑螺纹，以增强定位插销12余销孔13之间的摩擦力，增强两者的固定端连接。As shown in Figure 3, this embodiment is a further improvement of the third embodiment, the positioning mechanism II also includes a base 11 arranged at the gap between the two ends of the flushing tube 301 and the suction tube 302, close to the base of the connecting tube 2 11 is clamped in the gap between the flushing tube 301 and the end of the suction tube 302 through the action of the tension nut 5, of course, it can also be fixedly arranged in the inner cavity of the nozzle of the connecting tube 2 by screwing, welding or riveting. In the middle, the base 11 away from the connecting pipe 2 is affixed to the flushing tube 301 and the suction tube 302 by screwing; the fixed block 10 is provided with a Locating pin 12, locating pin 12 is connected with fixed block 10 by screw thread, can be easily disassembled; The pin hole 13 has an interference fit, so that when the casing 4 is stretched and shortened, the fixed block 10 on the casing 4 can be plugged and fixed with the bases 11 at both ends, so that the casing 4 can be positioned and fixed in the flushing pipe 301 further. The purpose of locking connection with the two ends of the suction tube 302. Further, the locating pin has a 12-bit conical structure, which is convenient for insertion and fixing. Preferably, the outer surface of the conical structure is provided with anti-slip threads to enhance the friction between the remaining pin holes 13 of the locating pin 12 and enhance The fixed ends of the two are connected.
实施例五：Embodiment five:
如图4所示，本实施例与上述实例不同之处在于，所述套管4中间通过隔板14形成有两个半圆形结构的容置内腔，用于分别容纳冲洗管301和吸引管302，这样无论是套管4相对于内管3是否处于伸缩状态时均可使冲洗和吸引具有单独的流通通道，同时还可在套管4的两个容置内腔的前端设置单向阀(未画出)，进一步保证冲洗和吸引的单向流动，避免冲洗管和吸引管之间的污染，符合无菌操作的要求；所述隔板14在距套管4尾端管口一定距离留有让位缺口，这样避免隔板14干涉到套管4尾端与张紧螺母5上的容置凹槽的定位连接和密封效果；所述定位机构Ⅱ包括设置在冲洗管301前端直线部上的定位头Ⅰ15和设置在套管4尾端隔板14上且卡合在定位头Ⅰ15上的定位头Ⅱ16，所述定位头Ⅰ15设置有凹凸结构，所述定位头Ⅱ16设置有与凹凸结构卡合配合的凸凹结构；当套管4伸长时，其尾端定位头Ⅰ15在冲洗管301前端定位头Ⅱ16定位连接时，将定位头Ⅰ15的凹凸结构与定位头Ⅱ16的凸凹结构交错对齐并完成卡合即可实现装配和密封，从而将套管4尾端和冲洗管301前端牢固的固定在一起，并配合冲洗管301和吸引管302前端外壁上分别设置的密封圈7完成套管4在伸长状态下的密闭性。所示凹凸结构或凸凹结构的外形轮廓可以是方形或梯形或三角形；为进一步便于定位头Ⅰ15和定位头Ⅱ16卡合装配和密封，可在定位头I15和定位头Ⅱ16上并在其厚度方向交错分布的台阶(未标记)，定位头I15和定位头Ⅱ16上所述台阶的端部设置有相同导向锥度，可使定位头I15和定位头Ⅱ16的贴合度一致，使两者之间脱离阻力相同，增强固定和密封效果。当然在不同的实施例中，该定位头Ⅰ15还可以设置在吸引管302前端或者同时在冲洗管301和吸引管302前端设置，同样可以达到上述的目的。As shown in FIG. 4 , the difference between this embodiment and the above-mentioned example is that two semicircular accommodating inner cavities are formed in the middle of the sleeve 4 through a partition 14 for respectively accommodating the flushing tube 301 and the suction tube 301 . Tube 302, so that no matter whether the sleeve tube 4 is in a telescopic state relative to the inner tube 3, flushing and suction can have separate flow passages, and at the same time, a one-way channel can also be set at the front ends of the two accommodating lumens of the sleeve tube 4. The valve (not shown) further ensures the one-way flow of flushing and suction, avoids contamination between the flushing tube and the suction tube, and meets the requirements of aseptic operation; There is a gap in the distance, so as to prevent the partition plate 14 from interfering with the positioning connection and sealing effect of the accommodating groove on the tail end of the casing 4 and the tension nut 5; the positioning mechanism II includes a straight line arranged at the front end of the flushing pipe 301 The positioning head I15 on the upper part and the positioning head II16 which is arranged on the partition plate 14 at the end of the casing 4 and snapped on the positioning head I15, the positioning head I15 is provided with a concave-convex structure, and the positioning head II16 is provided with a concave-convex structure The convex-concave structure of the structural snap fit; when the casing 4 is extended, the positioning head I15 at the tail end is positioned and connected with the positioning head II16 at the front end of the flushing tube 301, and the concave-convex structure of the positioning head I15 is staggered with the convex-concave structure of the positioning head II16 After the snap-fitting is completed, the assembly and sealing can be realized, so that the tail end of the sleeve tube 4 and the front end of the flushing tube 301 are firmly fixed together, and the sealing ring 7 respectively arranged on the outer walls of the front end of the flushing tube 301 and the suction tube 302 is used to complete the sleeve tube. 4 Sealability in stretched state. The concave-convex structure or the profile of the concave-convex structure shown can be square, trapezoidal or triangular; in order to further facilitate the fitting and sealing of the positioning head I15 and the positioning head II16, it can be staggered on the positioning head I15 and the positioning head II16 in the thickness direction Distributed steps (unmarked), the ends of the steps on the positioning head I15 and the positioning head II16 are provided with the same guide taper, so that the fitting degree of the positioning head I15 and the positioning head II16 is consistent, and the resistance between the two is separated Same, enhanced hold and seal. Of course, in different embodiments, the positioning head I15 can also be set at the front end of the suction tube 302 or at the front ends of both the irrigation tube 301 and the suction tube 302 , which can also achieve the above purpose.
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements, without departing from the spirit and scope of the technical solution, should be included in the scope of the claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245035.0ACN105854093B (en) | 2016-04-19 | 2016-04-19 | Laparoscope flushing aspirator |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245035.0ACN105854093B (en) | 2016-04-19 | 2016-04-19 | Laparoscope flushing aspirator |
| Publication Number | Publication Date |
|---|---|
| CN105854093A CN105854093A (en) | 2016-08-17 |
| CN105854093Btrue CN105854093B (en) | 2018-09-28 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610245035.0AExpired - Fee RelatedCN105854093B (en) | 2016-04-19 | 2016-04-19 | Laparoscope flushing aspirator |
| Country | Link |
|---|---|
| CN (1) | CN105854093B (en) |
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| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20180928 Termination date:20190419 | |
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