技术领域Technical Field
本发明涉及一种远端带球囊的微导管，属于微导管技术领域。The invention relates to a microcatheter with a balloon at the distal end, belonging to the technical field of microcatheters.
背景技术Background technique
为了避免术中球囊经多次充盈回缩、显影试剂粘度高或是固化等原因使得充盈通道封堵，导致球囊回缩难甚至无法回缩的问题，公开号为CN112807553A的中国专利文件公开了一种球囊微导管，其通过加强筋结构使充盈腔形成U形连通设计，来解决上述的问题，但是U形连通设计会使加强筋结构两侧的充盈腔之间的压力相同，在使用的时候球囊整体会均匀的膨胀，微导管球囊的适应性会降低，为了解决上述问题本发明提供了一种远端带球囊的微导管。In order to avoid the problem that the balloon is difficult to retract or even cannot be retracted due to the filling channel being blocked due to multiple filling and retraction of the balloon during surgery, high viscosity or solidification of the developing agent, etc., a Chinese patent document with publication number CN112807553A discloses a balloon microcatheter, which solves the above problem by forming a U-shaped connecting design in the filling cavity through a reinforcing rib structure. However, the U-shaped connecting design makes the pressure between the filling cavities on both sides of the reinforcing rib structure the same. When in use, the balloon will expand evenly as a whole, and the adaptability of the microcatheter balloon will be reduced. In order to solve the above problem, the present invention provides a microcatheter with a balloon at the distal end.
发明内容Summary of the invention
针对上述现有技术存在的问题，本发明提供一种远端带球囊的微导管，在连接通道的内部设置了多个分隔杆，通过控制分隔杆远端的膨胀来控制连接通道以及球囊是否被分隔为多个独立的空腔，其可以在分隔杆远端收缩时保证球囊的回缩效果，在分隔杆远端膨胀时来分开控制两侧连接通道内的压力来使球囊径向膨胀程度不同，从而可以提高微导管球囊的适用性。In view of the problems existing in the above-mentioned prior art, the present invention provides a microcatheter with a balloon at the distal end, in which a plurality of partition rods are arranged inside the connecting channel, and whether the connecting channel and the balloon are divided into a plurality of independent cavities is controlled by controlling the expansion of the distal end of the partition rod. The retraction effect of the balloon can be ensured when the distal end of the partition rod contracts, and the pressure in the connecting channels on both sides can be separately controlled when the distal end of the partition rod expands to make the radial expansion degree of the balloon different, thereby improving the applicability of the microcatheter balloon.
为了实现上述目的，本发明采用如下技术方案：一种远端带球囊的微导管，包括微导管本体，所述微导管本体的近端安装有管座，远端安装有显影标记，且微导管本体的外侧设有亲水涂层，所述微导管本体包括内管和外管，外管套接在内管的外侧，所述外管的远端安装有球囊，近端安装有多个分支管，可以通过分支管向球囊的内部注入显影剂，使球囊膨胀，所述球囊通过内管和外管之间形成的连接通道与多个分支管相通，且连接通道的内部设有多个与分支管相对应的分隔杆，分隔杆和分支管的数量最低为两个，所述分隔杆的远端可控制膨胀，在分隔杆的远端膨胀时球囊和连接通道被分隔多个独立的腔体，且在分隔之后多个分支管分别与对应的独立的腔体相通，两个分隔杆的远端在同时膨胀之后，可以将球囊和连接通道分隔为两个独立的腔体，在分隔杆的远端收缩时球囊和连接通道形成一个腔体，在形成一个腔体的时候，可以从一个分支管向连接通道和球囊的内部注入显影液，所述分隔杆上开设有多个可控制开合的用于辅助球囊收缩的贯穿孔，在需要使球囊收缩的时候，可以向分隔杆的内部注入空气，从而可以使空气通过贯穿孔吹向球囊。In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a microcatheter with a balloon at the distal end, comprising a microcatheter body, a tube seat is installed at the proximal end of the microcatheter body, a developer mark is installed at the distal end, and a hydrophilic coating is provided on the outer side of the microcatheter body, the microcatheter body comprises an inner tube and an outer tube, the outer tube is sleeved on the outer side of the inner tube, a balloon is installed at the distal end of the outer tube, and a plurality of branch tubes are installed at the proximal end, a developer can be injected into the interior of the balloon through the branch tubes to expand the balloon, the balloon is communicated with the plurality of branch tubes through a connecting channel formed between the inner tube and the outer tube, and a plurality of partition rods corresponding to the branch tubes are provided inside the connecting channel, the number of the partition rods and the branch tubes is at least two, and the partition rods The distal end of the partition rod can be controlled to expand. When the distal end of the partition rod expands, the balloon and the connecting channel are divided into multiple independent cavities, and after the separation, the multiple branch tubes are respectively connected to the corresponding independent cavities. After the distal ends of the two partition rods expand at the same time, the balloon and the connecting channel can be divided into two independent cavities. When the distal end of the partition rod contracts, the balloon and the connecting channel form a cavity. When a cavity is formed, a developing solution can be injected into the interior of the connecting channel and the balloon from a branch tube. The partition rod is provided with multiple through holes that can be controlled to open and close and are used to assist the balloon in contraction. When the balloon needs to be contracted, air can be injected into the interior of the partition rod, so that the air can be blown toward the balloon through the through holes.
优选地，所述分隔杆包括硬杆、软板和气囊，所述硬杆分别与内管和外管固定连接，所述软板分别与硬杆和球囊固定连接，软板可以在球囊膨胀的时候跟随球囊一起运动产生形变，且气囊通过硬杆内部开设有的空腔与安装在外管上的进气管相通，气囊位于硬杆的远端，在气囊膨胀的时候，可以将球囊和连接通道分隔为多个独立的腔体。Preferably, the separating rod comprises a hard rod, a soft plate and an airbag, the hard rod is fixedly connected to the inner tube and the outer tube respectively, the soft plate is fixedly connected to the hard rod and the balloon respectively, the soft plate can move with the balloon and deform when the balloon is inflated, and the airbag is connected to the air inlet pipe installed on the outer tube through a cavity opened inside the hard rod, the airbag is located at the distal end of the hard rod, and when the airbag is inflated, the balloon and the connecting channel can be separated into multiple independent cavities.
优选地，所述贯穿孔开设在硬杆上，所述贯穿孔为倾斜设置，且贯穿孔的外侧向外管的近端倾斜，从贯穿孔内部排出的气体会斜着喷出，继而可以更好的将显影液排出。Preferably, the through hole is opened on the hard rod, the through hole is inclined, and the outer side of the through hole is inclined toward the proximal end of the outer tube, and the gas discharged from the through hole will be sprayed out obliquely, thereby better discharging the developer.
优选地，所述贯穿孔的外侧设有弹片，且弹片的一侧与硬杆固定连接，弹片起到单向阀的作用。Preferably, a spring sheet is provided on the outer side of the through hole, and one side of the spring sheet is fixedly connected to the hard rod, and the spring sheet acts as a one-way valve.
优选地，所述弹片远离其与硬杆固定连接的一侧为中间凸起的弧面，硬杆内部的气体在将弹片顶开通过贯穿孔排出的时候，弹片的弧面会起到导向作用。Preferably, the side of the spring sheet away from the fixed connection with the hard rod is a curved surface with a central protrusion, and when the gas inside the hard rod pushes the spring sheet open and is discharged through the through hole, the curved surface of the spring sheet will play a guiding role.
优选地，所述气囊的外侧且位于外管的内侧壁上固定连接有与气囊相对应的凸条，凸条的设置，可以使气囊在鼓起的时候，气囊与外管内侧壁之间保持更好的密封性。Preferably, a convex strip corresponding to the airbag is fixedly connected to the outside of the airbag and located on the inner side wall of the outer tube. The provision of the convex strip can ensure better sealing between the airbag and the inner side wall of the outer tube when the airbag is inflated.
优选地，多个硬杆均与固定连接在内管近端外侧的固定管相通，所述固定管与进气管相通，通过向进气管内部泵入气体，即可通过固定管向所有的硬杆的内部泵入气体。Preferably, the multiple rigid rods are all connected to a fixed tube fixedly connected to the outer side of the proximal end of the inner tube, and the fixed tube is connected to the air inlet pipe. By pumping gas into the air inlet pipe, gas can be pumped into all the rigid rods through the fixed tube.
优选地，所述分支管为三通管，且一端固定连接在外管上，另外两端分别与外界的注射设备、抽吸设备相通，所述分支管与外界抽吸设备相通的一端外侧设有密封夹，密封夹的设置可以控制分支管是否与抽吸设备相通，从而可以方便医护人员操作。Preferably, the branch tube is a three-way tube, and one end is fixedly connected to the outer tube, and the other two ends are respectively connected to the external injection equipment and suction equipment. A sealing clamp is provided on the outer side of the end of the branch tube connected to the external suction equipment. The setting of the sealing clamp can control whether the branch tube is connected to the suction equipment, thereby facilitating the operation of medical staff.
优选地，所述密封夹包括夹座，所述夹座固定连接在分支管上，所述夹座上啮合连接有螺栓，所述螺栓的内端延伸至夹座的内部转动连接有夹板，通过转动螺栓可以控制夹板是否与夹座挤压分支管。Preferably, the sealing clamp includes a clamp seat, which is fixedly connected to the branch pipe. The clamp seat is meshingly connected with a bolt, and the inner end of the bolt extends to the inside of the clamp seat and is rotatably connected to a clamp plate. By rotating the bolt, it can be controlled whether the clamp plate and the clamp seat squeeze the branch pipe.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the present invention has the following beneficial effects:
1、在连接通道的内部设置分隔杆，通过控制分隔杆远端的膨胀收缩即可控制连接通道以及球囊是否被分隔为多个独立的空腔，从而可以保证球囊的回缩效果，还能根据需要来使球囊不同位置的径向膨胀程度不同；1. A partition rod is arranged inside the connecting channel. By controlling the expansion and contraction of the distal end of the partition rod, the connecting channel and the balloon can be controlled to be divided into multiple independent cavities, thereby ensuring the retraction effect of the balloon and making the radial expansion degree of different positions of the balloon different as needed;
2、在硬杆上设置了倾斜的贯穿孔，在使球囊缩回的时候，可以向硬杆的内部泵入气体，从而可以使气体通过贯穿孔吹向球囊的内侧壁，继而可以清理球囊内侧面上的显影试剂，使球囊可以更好的缩回；2. An inclined through hole is provided on the hard rod. When the balloon is retracted, gas can be pumped into the hard rod so that the gas can be blown to the inner wall of the balloon through the through hole, thereby cleaning the developing agent on the inner side of the balloon and making the balloon retract better.
3、在外管的内侧壁上固定连接有与气囊相适配的凸条，可以保证气囊在膨胀之后，气囊与外管内侧壁之间的密封性，从而可以保证球囊和连接通道被分隔的多个独立的腔体之间互不影响。3. A convex strip adapted to the airbag is fixedly connected to the inner wall of the outer tube, which can ensure the sealing between the airbag and the inner wall of the outer tube after the airbag is inflated, thereby ensuring that the multiple independent cavities separated by the balloon and the connecting channel do not affect each other.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明的结构示意图。FIG1 is a schematic structural diagram of the present invention.
图2为本发明内管与外管的爆炸图。FIG. 2 is an exploded view of the inner tube and the outer tube of the present invention.
图3为本发明贯穿孔的结构示意图。FIG. 3 is a schematic diagram of the structure of the through hole of the present invention.
图4为本发明分支管的剖视图。FIG. 4 is a cross-sectional view of a branch pipe of the present invention.
图5为本发明硬杆与固定管的连接示意图。FIG. 5 is a schematic diagram showing the connection between the rigid rod and the fixed tube of the present invention.
图6为本发明硬杆的剖视图。FIG. 6 is a cross-sectional view of the hard rod of the present invention.
图7为本发明弹片的结构示意图。FIG. 7 is a schematic diagram of the structure of the spring piece of the present invention.
图8为本发明螺栓与夹座的爆炸图。FIG. 8 is an exploded view of the bolt and the clamping seat of the present invention.
图中：1、微导管本体，101、内管，102、外管，2、管座，3、显影标记，4、球囊，5、分支管，6、连接通道，7、分隔杆，701、硬杆，702、软板，703、气囊，704、空腔，705、固定管，8、贯穿孔，9、进气管，10、凸条，11、密封夹，110、夹座，111、螺栓，112、夹板，12、弹片。In the figure: 1. microcatheter body, 101. inner tube, 102. outer tube, 2. tube seat, 3. developing mark, 4. balloon, 5. branch tube, 6. connecting channel, 7. dividing rod, 701. hard rod, 702. soft board, 703. airbag, 704. cavity, 705. fixing tube, 8. through hole, 9. air inlet pipe, 10. convex strip, 11. sealing clamp, 110. clamp seat, 111. bolt, 112. splint, 12. shrapnel.
具体实施方式Detailed ways
下面用具体实施例说明本发明，但并不是对发明的限制。The present invention is described below with specific embodiments, but they are not intended to be limiting of the invention.
实施例一Embodiment 1
本实施例中，提供的一种远端带球囊的微导管，如图1、图2、图3和图4所示，包括微导管本体1，微导管本体1的近端安装有管座2，远端安装有显影标记3，且微导管本体1的外侧设有亲水涂层，微导管本体1包括内管101和外管102，外管102套接在内管101的外侧，且外管102的轴线与内管101的轴线处于同一位置，外管102的远端安装有球囊4，近端安装有多个分支管5，可以通过分支管5向球囊4的内部注入显影剂，使球囊4膨胀，或者使通过分支管5将球囊4内部的显影剂抽出，从而使球囊4收缩，球囊4通过内管101和外管102之间形成的连接通道6与多个分支管5相通，且连接通道6的内部设有多个与分支管5相对应的分隔杆7，分隔杆7的数量与分支管5的数量相同，分隔杆7和分支管5的数量最低为两个，分隔杆7的远端可控制膨胀，在分隔杆7的远端膨胀时球囊4和连接通道6被分隔多个独立的腔体，且在分隔之后多个分支管5分别与对应的独立的腔体相通，两个分隔杆7的远端在同时膨胀之后，可以将球囊4和连接通道6分隔为两个独立的腔体，此时两个分支管5分别与分隔后的两个独立的腔体相通，此时可以通过控制两个独立的腔体内部的气压来控制球囊4对应角度的径向膨胀程度，使球囊4两侧的径向膨胀程度不同，继而可以使本发明适用于更多种情况，提高本发明的适用性，在分隔杆7的远端收缩时球囊4和连接通道6形成一个腔体，在形成一个腔体的时候，可以从一个分支管5向连接通道6和球囊4的内部注入显影液，此时球囊4和连接通道6内部的空气会经过另一个分支管5排出，避免空气残留在球囊4和连接通道6的内部，从而使球囊4的膨胀更容易被控制，分隔杆7上开设有多个可控制开合的用于辅助球囊4收缩的贯穿孔8，在需要使球囊4收缩的时候，可以向分隔杆7的内部注入空气，从而可以使空气通过贯穿孔8吹向球囊4，同时可以通过分支管5抽取球囊4和连接通道6内部的显影液(抽取显影液的流量大于注入空气的流量)，空气吹向球囊4的时候能够辅助球囊4内部显影液的排空，使球囊4的收缩效果更好。In the present embodiment, a microcatheter with a balloon at the distal end is provided, as shown in FIGS. 1, 2, 3 and 4, comprising a microcatheter body 1, a tube seat 2 is installed at the proximal end of the microcatheter body 1, a developing mark 3 is installed at the distal end, and a hydrophilic coating is provided on the outer side of the microcatheter body 1, the microcatheter body 1 comprises an inner tube 101 and an outer tube 102, the outer tube 102 is sleeved on the outer side of the inner tube 101, and the axis of the outer tube 102 is in the same position as the axis of the inner tube 101, a balloon 4 is installed at the distal end of the outer tube 102, and a plurality of branch tubes 5 are installed at the proximal end, and a developer can be injected into the interior of the balloon 4 through the branch tubes 5 to expand the balloon 4, or a developer can be injected into the balloon 4 through the branch tubes 5 to expand the balloon 4. The branch tube 5 draws out the developer inside the balloon 4, thereby shrinking the balloon 4. The balloon 4 is connected to multiple branch tubes 5 through a connecting channel 6 formed between the inner tube 101 and the outer tube 102, and multiple partition rods 7 corresponding to the branch tubes 5 are arranged inside the connecting channel 6. The number of partition rods 7 is the same as the number of branch tubes 5. The number of partition rods 7 and branch tubes 5 is at least two. The distal end of the partition rod 7 can be controlled to expand. When the distal end of the partition rod 7 expands, the balloon 4 and the connecting channel 6 are divided into multiple independent cavities, and after the separation, the multiple branch tubes 5 are respectively connected to the corresponding independent cavities. After the distal ends of the two partition rods 7 are expanded at the same time, The balloon 4 and the connecting channel 6 can be separated into two independent cavities. At this time, the two branch tubes 5 are respectively connected to the two independent cavities after separation. At this time, the radial expansion degree of the balloon 4 corresponding to the angle can be controlled by controlling the air pressure inside the two independent cavities, so that the radial expansion degrees on both sides of the balloon 4 are different, and then the present invention can be applied to more situations, improving the applicability of the present invention. When the distal end of the partition rod 7 is contracted, the balloon 4 and the connecting channel 6 form a cavity. When a cavity is formed, a developing solution can be injected into the connecting channel 6 and the balloon 4 from a branch tube 5. At this time, the air inside the balloon 4 and the connecting channel 6 It will be discharged through another branch tube 5 to prevent air from remaining inside the balloon 4 and the connecting channel 6, thereby making it easier to control the expansion of the balloon 4. A plurality of through holes 8 that can be controlled to open and close are provided on the partition rod 7 to assist the contraction of the balloon 4. When the balloon 4 needs to be contracted, air can be injected into the interior of the partition rod 7 so that the air can be blown toward the balloon 4 through the through holes 8. At the same time, the developer inside the balloon 4 and the connecting channel 6 can be extracted through the branch tube 5 (the flow rate of the extracted developer is greater than the flow rate of the injected air). When the air is blown toward the balloon 4, it can assist in the emptying of the developer inside the balloon 4, thereby making the contraction effect of the balloon 4 better.
如图5和图6，分隔杆7包括硬杆701、软板702和气囊703，硬杆701分别与内管101和外管102固定连接，软板702分别与硬杆701和球囊4固定连接，软板702可以在球囊4膨胀的时候跟随球囊4一起运动产生形变，从而可以保证分隔杆7在球囊4膨胀的时候也能够将球囊4分隔为多个独立的腔体，且气囊703通过硬杆701内部开设有的空腔704与安装在外管102上的进气管9相通，气囊703位于硬杆701的远端，在气囊703膨胀的时候，可以将球囊4和连接通道6分隔为多个独立的腔体，在气囊703收缩的时候可以使球囊4和连接通道6形成相通的一个腔体，通过向进气管9泵入或抽出气体即可控制气囊703的膨胀和收缩。As shown in Figures 5 and 6, the separating rod 7 includes a hard rod 701, a soft plate 702 and an airbag 703. The hard rod 701 is fixedly connected to the inner tube 101 and the outer tube 102 respectively, and the soft plate 702 is fixedly connected to the hard rod 701 and the balloon 4 respectively. The soft plate 702 can move and deform along with the balloon 4 when the balloon 4 expands, thereby ensuring that the separating rod 7 can also separate the balloon 4 into a plurality of independent cavities when the balloon 4 expands, and the airbag 703 is connected to the air inlet pipe 9 installed on the outer tube 102 through the cavity 704 opened inside the hard rod 701. The airbag 703 is located at the distal end of the hard rod 701. When the airbag 703 expands, the balloon 4 and the connecting channel 6 can be separated into a plurality of independent cavities. When the airbag 703 contracts, the balloon 4 and the connecting channel 6 can form a connected cavity. The expansion and contraction of the airbag 703 can be controlled by pumping gas into or out of the air inlet pipe 9.
贯穿孔8开设在硬杆701上，贯穿孔8为倾斜设置，且贯穿孔8的外侧向外管102的近端倾斜，从贯穿孔8内部排出的气体会斜着喷出，从而可以将显影液向分支管5的方向吹去，继而可以更好的将显影液排出。The through hole 8 is opened on the hard rod 701. The through hole 8 is inclined, and the outer side of the through hole 8 is inclined toward the proximal end of the outer tube 102. The gas discharged from the through hole 8 will be sprayed out obliquely, so that the developer can be blown toward the direction of the branch tube 5, and then the developer can be better discharged.
贯穿孔8的外侧设有弹片12，且弹片12的一侧与硬杆701固定连接，弹片12起到单向阀的作用，弹片12的弹力大于气囊703的弹力，在使用的时候先向连接通道6的内部注入显影液，此时向硬杆701的内部注入空气，可以使气囊703鼓起，此时在显影液的压力以及弹片12弹力的作用下，弹片12仍然会将贯穿孔8堵住，需要将显影液排出的时候增加输入硬杆701内部的气压和气体的流量，同时通过分支管5将显影液抽出，此时硬杆701内部的气体会将弹片12顶开，同时将显影液吹出。A spring piece 12 is provided on the outside of the through hole 8, and one side of the spring piece 12 is fixedly connected to the hard rod 701. The spring piece 12 acts as a one-way valve. The elastic force of the spring piece 12 is greater than the elastic force of the airbag 703. When in use, the developer is first injected into the inside of the connecting channel 6, and then air is injected into the inside of the hard rod 701 to make the airbag 703 swell. At this time, under the pressure of the developer and the elastic force of the spring piece 12, the spring piece 12 will still block the through hole 8. When the developer needs to be discharged, the air pressure and gas flow rate input into the hard rod 701 are increased, and the developer is extracted through the branch pipe 5 at the same time. At this time, the gas inside the hard rod 701 will push the spring piece 12 open and blow out the developer at the same time.
如图7所示，弹片12远离其与硬杆701固定连接的一侧为中间凸起的弧面，硬杆701内部的气体在将弹片12顶开通过贯穿孔8排出的时候，弹片12的弧面会起到导向作用，使气体呈扇形吹出，从而可以使气体吹动更大面积的气囊内侧壁，使显影液可以更好的排出。As shown in FIG7 , the side of the spring piece 12 away from the fixed connection with the hard rod 701 is a curved surface with a middle protrusion. When the gas inside the hard rod 701 pushes the spring piece 12 open and is discharged through the through hole 8, the curved surface of the spring piece 12 will play a guiding role, causing the gas to be blown out in a fan shape, thereby allowing the gas to blow a larger area of the inner wall of the airbag, allowing the developer to be better discharged.
气囊703的外侧且位于外管102的内侧壁上固定连接有与气囊703相对应的凸条10，凸条10的设置，可以使气囊703在鼓起的时候，气囊703与外管102内侧壁之间保持更好的密封性。A convex strip 10 corresponding to the airbag 703 is fixedly connected to the outside of the airbag 703 and located on the inner wall of the outer tube 102. The setting of the convex strip 10 can ensure better sealing between the airbag 703 and the inner wall of the outer tube 102 when the airbag 703 is inflated.
多个硬杆701均与固定连接在内管101近端外侧的固定管705相通，固定管705与进气管9相通，通过向进气管9内部泵入气体，即可通过固定管705向所有的硬杆701的内部泵入气体，控制所有的分隔杆7远端是否膨胀。Multiple hard rods 701 are all connected to a fixed tube 705 fixedly connected to the outer side of the proximal end of the inner tube 101. The fixed tube 705 is connected to the air inlet pipe 9. By pumping gas into the air inlet pipe 9, gas can be pumped into all the hard rods 701 through the fixed tube 705 to control whether the distal ends of all the partition rods 7 are expanded.
实施例二Embodiment 2
如图1和图8所示，分支管5为三通管，且一端固定连接在外管102上，另外两端分别与外界的注射设备、抽吸设备相通，分支管5与外界抽吸设备相通的一端外侧设有密封夹11，密封夹11的设置可以控制分支管5是否与抽吸设备相通，当通过一个分支管5向球囊4的内部注入显影液的时候，可以启动抽吸设备将从球囊4和连接通道6内部排出的气体抽出，在气体排出干净之后可以通过全部密封夹11使全部的分支管5均不与抽吸设备相通，此时即可逐渐加压使球囊4膨胀；As shown in Fig. 1 and Fig. 8, the branch tube 5 is a three-way tube, and one end is fixedly connected to the outer tube 102, and the other two ends are respectively connected to the external injection device and the suction device. A sealing clamp 11 is provided on the outer side of the end of the branch tube 5 connected to the external suction device. The setting of the sealing clamp 11 can control whether the branch tube 5 is connected to the suction device. When the developer is injected into the interior of the balloon 4 through a branch tube 5, the suction device can be started to extract the gas discharged from the balloon 4 and the connecting channel 6. After the gas is completely discharged, all the branch tubes 5 can be disconnected from the suction device through all the sealing clamps 11. At this time, the balloon 4 can be gradually pressurized to expand.
当需要抽出显影液的时候可以使分支管5与外界的抽吸设备相通，通过抽吸设备将显影液抽出；When it is necessary to extract the developer, the branch pipe 5 can be connected to an external suction device to extract the developer through the suction device.
密封夹11的设置可以方便医护人员操作。The provision of the sealing clamp 11 can facilitate operation by medical personnel.
密封夹11包括夹座110，夹座110固定连接在分支管5上，夹座110上啮合连接有螺栓111，螺栓111的内端延伸至夹座110的内部转动连接有夹板112(螺栓111上固定连接有横截面为“T”形的连接轴，夹板112上开设有与连接轴对应的连接槽)，通过转动螺栓111可以控制夹板112在夹座110的内部滑动，从而控制夹板112是否与夹座110挤压分支管5，当夹板112与夹座110相互配合挤压分支管5的时候，可以使分支管5不在与外界的抽吸设备相通，反之分支管5会与外界的抽吸设备相通。The sealing clamp 11 includes a clamp seat 110, which is fixedly connected to the branch pipe 5. The clamp seat 110 is meshed with a bolt 111, and the inner end of the bolt 111 extends to the inside of the clamp seat 110 and is rotatably connected with a clamp plate 112 (a connecting shaft with a "T"-shaped cross-section is fixedly connected to the bolt 111, and a connecting groove corresponding to the connecting shaft is provided on the clamp plate 112). By rotating the bolt 111, the clamp plate 112 can be controlled to slide inside the clamp seat 110, thereby controlling whether the clamp plate 112 and the clamp seat 110 squeeze the branch pipe 5. When the clamp plate 112 and the clamp seat 110 cooperate with each other to squeeze the branch pipe 5, the branch pipe 5 can no longer be communicated with the external suction equipment, otherwise the branch pipe 5 will be communicated with the external suction equipment.
最后应说明的是，以上实施例仅用以说明而非限制本发明的技术方案，尽管参照上述实施例对本发明进行了详细说明，本领域技术人员应当理解，依然可以对本发明进行修改或者等同替换，而不脱离本发明的精神和范围的任何修改或局部替换，其均应涵盖在本发明的权利要求范围中。Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410204950.XACN118079200B (en) | 2024-02-26 | 2024-02-26 | A microcatheter with a balloon at the distal end |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410204950.XACN118079200B (en) | 2024-02-26 | 2024-02-26 | A microcatheter with a balloon at the distal end |
| Publication Number | Publication Date |
|---|---|
| CN118079200Atrue CN118079200A (en) | 2024-05-28 |
| CN118079200B CN118079200B (en) | 2025-03-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410204950.XAActiveCN118079200B (en) | 2024-02-26 | 2024-02-26 | A microcatheter with a balloon at the distal end |
| Country | Link |
|---|---|
| CN (1) | CN118079200B (en) |
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| US20030014007A1 (en)* | 2001-07-11 | 2003-01-16 | Eidenschink Tracee E.J. | Conformable balloon |
| CN105311730A (en)* | 2014-07-31 | 2016-02-10 | 微创神通医疗科技（上海）有限公司 | Guiding catheter |
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| CN118079200B (en) | 2025-03-25 |
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