WO2023010430A1 - 一种用于引流导管的引线安装结构和引流导管 - Google Patents

一种用于引流导管的引线安装结构和引流导管 Download PDF

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Publication number
WO2023010430A1
WO2023010430A1 PCT/CN2021/110945 CN2021110945W WO2023010430A1 WO 2023010430 A1 WO2023010430 A1 WO 2023010430A1 CN 2021110945 W CN2021110945 W CN 2021110945W WO 2023010430 A1 WO2023010430 A1 WO 2023010430A1
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WO
WIPO (PCT)
Prior art keywords
lead wire
catheter
hole
groove
handle
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PCT/CN2021/110945
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English (en)
French (fr)
Inventor
李坤
王沁
王宝中
朱瑜
顾伟
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苏州市立普医疗科技有限公司
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Application filed by 苏州市立普医疗科技有限公司 filed Critical 苏州市立普医疗科技有限公司
Priority to PCT/CN2021/110945 priority Critical patent/WO2023010430A1/zh
Publication of WO2023010430A1 publication Critical patent/WO2023010430A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters

Definitions

  • the invention relates to the technical field of medical devices, in particular to a lead wire installation structure for a drainage catheter and the drainage catheter.
  • Drainage catheter is a medical device used for clinical surgical drainage. It can guide pus, blood, and fluid accumulated between human tissues or body cavities to the outside of the body to prevent postoperative infection and promote wound healing.
  • Surgical drainage tubes are widely used clinically, some are used for catheterization, some are used for wounds, as well as the chest cavity, brain cavity, gastrointestinal tract, and biliary tract.
  • a positioning structure is usually provided at the tip of the drainage catheter.
  • the commonly used positioning structure is: after the tip enters the patient's cavity, use the lead wire passing through the handle end to bend the tip of the drainage tube into a "pig tail" shape, that is, the width of the tip of the drainage tube increases, and it is not easy to be adjusted by the drainage tube.
  • the insertion hole is pulled out, thereby realizing the positioning of the drainage catheter in the human body.
  • the two ends of the lead wire are exposed outside after passing through a rubber pad at the handle end, so as to facilitate the tightening operation, and the friction force between the rubber pad and the lead wire can prevent the lead wire from loosening.
  • the lead wire is cut off, and after the pulling force of the lead wire is eliminated, the tip of the drainage catheter automatically straightens, so that the drainage catheter can be taken out.
  • the part that needs to be cut on the lead wire is behind the rubber pad. Since the two lead wires are relatively close to each other, one of the two wires needs to be separated before one of them can be cut off, which makes the operation of cutting the lead wire more complicated; Although the operation mode of cutting the lead wires together is simple to operate, there may be a problem that the liquid in the drainage tube may flow out and contaminate the wound.
  • the existing drainage catheter is provided with a three-way joint at the handle end, and one joint of the three-way joint is provided with a lead wire separately.
  • the volume of the handle end of the drainage catheter is relatively large, so that the drainage catheter is easily touched and pulled.
  • the invention provides a lead wire installation structure for a drainage catheter and a drainage catheter.
  • the part of the lead wire to be cut is arranged on the notch of the first groove, and the part of the lead wire is suspended in the air. When the cutting operation is required, the suspended part can be cut. The operation is simple and fast.
  • One aspect of the present invention provides a lead wire installation structure for a drainage catheter, including a catheter handle, the catheter handle includes a perforation for communicating with the catheter; the side wall of the catheter handle is provided with a through hole for passing the lead wire, so that The free end and the fixed end of the lead wire pass through the catheter handle through the through hole and are connected with the outer wall of the catheter handle; the outer wall of the catheter handle is provided with a first groove, and a pair of opposite side walls of the first groove are respectively provided with a first through hole and a The second through hole is used to make the fixed end of the lead pass through the first through hole and the second through hole in turn, so that the lead part is suspended at the notch of the first groove.
  • the outer wall of the catheter handle is provided with a second groove, the side wall of the second groove protrudes from the outer wall surface of the catheter handle, and the notch of the second groove is provided with a sealing cover; the through hole is arranged in the second groove The bottom of the groove, the first groove is arranged on the surface of the sealing cover; the side wall of the second groove is provided with a lead-out hole, which is used to make the free end of the lead wire pass through the catheter handle through the through hole and the lead-out hole in turn, and connect with the catheter handle
  • the outer wall is connected; the first through hole communicates with the second groove, and is used to make the fixed end of the lead wire go out of the catheter handle through the through hole and the first through hole in sequence.
  • a space is provided between the side wall of the sealing cover and the side wall of the second groove, thereby forming a cavity; the cavity is used for setting the fixed end of the lead wire in the cavity and fixedly connected with the inner wall of the cavity .
  • a sealing pad is also included, the sealing pad is filled in the second groove, and the sealing pad is provided with a hole for passing the free end and the fixed end of the lead wire.
  • the sealing cover is detachably connected to the second groove through a locking structure.
  • the locking structure includes a lock hole and a lock hook, the lock hole and the lock hook are detachably connected; the lock hole is arranged on the side wall of the sealing cover, and the lock hook is arranged on the side wall of the second groove, or the lock hook is arranged On the side wall of the sealing cover, the locking hole is arranged on the side wall of the second groove.
  • the clamp ring for being sleeved on the handle of the catheter; the clamp ring is provided with a connection hole for connecting the free end of the lead wire to the clamp ring through the connection hole.
  • a notch is provided on the snap ring, and the snap ring is detachably connected to the catheter handle through the notch.
  • the two free ends of the clamping ring are respectively provided with hooks
  • the catheter handle is cylindrical
  • the outer wall of the catheter handle is provided with a plurality of buckles at intervals along the circumference; the hooks are detachably connected to the buckles, and the buckles
  • the snap connection of the hook and different positions can make the snap ring and the catheter handle form different connection angles.
  • a handle is provided on the snap ring.
  • Another aspect of the present invention also provides a drainage catheter, including a catheter, a lead wire, and the above-mentioned lead wire installation structure for the drainage catheter.
  • the fixed end of the lead wire is suspended on the notch of the first groove.
  • This setting method can separate the fixed end of the lead wire from the free end.
  • the fixed end of the lead wire is suspended in the air.
  • the scissors are inserted into the first groove, and the leads are cut off.
  • the lead wire installation structure can quickly complete the operation of cutting the lead wire and pulling out the drainage catheter, and the operation is simple, fast, safe and reliable.
  • FIG. 1 is a schematic structural view of a lead wire installation structure for a drainage catheter provided in an embodiment of the present invention
  • Fig. 2 is an exploded view of the lead wire installation structure for the drainage catheter provided by the embodiment of the present invention
  • FIG. 3 is a cross-sectional view of a lead wire installation structure for a drainage catheter provided in an embodiment of the present invention
  • Fig. 4 is a partial enlarged view of the gasket in Fig. 3;
  • Fig. 5 is a schematic structural view of a drainage catheter provided by an embodiment of the present invention.
  • FIG. 1 is a schematic structural view of a lead wire installation structure for a drainage catheter provided by an embodiment of the present invention
  • Fig. 2 is an exploded view of a lead wire installation structure for a drainage catheter provided by an embodiment of the present invention
  • Fig. 3 is a schematic diagram of a lead wire installation structure provided by an embodiment of the present invention The cross-sectional view of the lead wire installation structure for the drainage catheter
  • FIG. 4 is a partial enlarged view of the gasket in FIG. 3 .
  • the lead wire installation structure includes a catheter handle 1, and the catheter handle 1 includes a perforation 11 for communicating with the catheter 4; the side wall of the catheter handle 1 is provided with a through hole 12 for passing the lead wire 2, so that The free end 21 and the fixed end 22 of the lead wire 2 pass through the catheter handle 1 through the through hole 12 and are connected with the outer wall of the catheter handle 1; the outer wall of the catheter handle 1 is provided with a first groove 13, and the first groove 13 is a pair of opposite The side walls are respectively provided with a first through hole 14 and a second through hole 15, which are used to make the fixed end 22 of the lead wire 2 pass through the first through hole 14 and the second through hole 15 in turn, so that the lead wire 2 is partly suspended in the first recess. At the notch of slot 13.
  • the free end 21 of the lead wire 2 When the drainage catheter is in use, use the free end 21 of the lead wire 2 to tighten and bend the end of the catheter 4, and the fixed end 22 of the lead wire 2 remains in a fixed state. Terminal 22 is enough.
  • the part of the fixed end 22 of the lead wire 2 straddles the first groove 13, and this part is suspended in the air.
  • the suspended part of the lead wire 2 can be cut off.
  • the suspended part has sufficient reserved space and is separated from the free end 21 of the lead wire 2 .
  • the scissors are inserted into the first groove 13 to cut the lead wire 2 off.
  • the outer wall of the catheter handle 1 is provided with a second groove 16, the side wall of the second groove protrudes from the outer wall surface of the catheter handle 1, and the second groove 16
  • the notch is provided with a seal cover 17; the through hole 12 is located at the bottom of the second groove 16, and the first groove 13 is located on the surface of the seal cover 17; the side wall of the second groove 16 is provided with a lead-out hole 161, used
  • the free end 21 of the lead wire 2 passes through the catheter handle 1 through the through hole 12 and the outlet hole 161 in turn, and is connected with the outer wall of the catheter handle 1;
  • the fixed end 22 passes through the catheter handle 1 through the through hole 12 and the first through hole 14 in sequence.
  • the through hole 12 is blocked by the sealing cover 17 and the second groove 16 to realize the sealing setting of the through hole 12 .
  • the sealing gasket 19 is filled in the second groove 16, and the through hole 12 is further blocked by the sealing gasket 19 to ensure the sealing effect of the through hole 12, wherein the sealing gasket 19 is used to make the free end 21 of the lead wire 2 and the The hole through which the fixed end 22 passes, the sealing gasket 19 adopts a material with certain elasticity, such as rubber, even if the free end 21 and the fixed end 22 of the lead wire 2 pass through the sealing gasket 19, under the rebound effect of the material, the sealing gasket 19 can The hole of the lead wire is squeezed, so that the sealing gasket 19 is still in a closed state.
  • a space is provided between the side wall of the sealing cover 17 and the side wall of the second groove 16, thereby forming a cavity 18; the cavity 18 is used to make the fixed end 22 of the lead wire 2 be arranged in the cavity 18 Inside, and fixedly connected with the inner wall of the chamber 18.
  • the fixed end 22 of the lead wire 2 is arranged on the outer wall of the second groove 16 , and the fixed end 22 of the lead wire 2 is arranged on the second groove 16 , which does not affect the opening and closing of the sealing cover 17 .
  • the sealing cover 17 is detachably connected to the second groove 16 through a locking structure.
  • the locking structure includes a lock hole 171 and a lock hook 162, the lock hole 171 and the lock hook 162 are detachably connected; the lock hole 171 is located on the side wall of the sealing cover 17, and the lock hook 162 is located on the second Alternatively, the locking hook 162 is disposed on the side wall of the sealing cover 17 , and the locking hole 171 is disposed on the side wall of the second groove 16 .
  • the sealing cover 17 is set as a detachable structure to facilitate the operation of the lead wire 2 .
  • the lead wire installation structure also includes a clamp ring 3 for being sleeved on the catheter handle 1; the clamp ring 3 is provided with a connection hole 31 for allowing the free end 21 of the lead wire 2 to pass through
  • the connecting hole 31 is connected with the snap ring 3 .
  • the clamping ring 3 is used to tighten or loosen the lead wire 2. For example, when performing tightening and bending operations, the clamping ring 3 is pulled or rotated, and the clamping ring 3 drives the free end 21 of the lead wire 2 to move, and the lead wire 2 is pulled. Tighten the end of the conduit 4, and after reaching the designated position, fix the clamping ring 3 and get final product.
  • the catheter handle 1 is in the shape of a cylinder, and the clamping ring 3 is provided with a gap 32 , and the clamping ring 3 is detachably connected to the catheter handle 1 through the gap 32 .
  • the lead wire 2 is tightened or loosened, it is sufficient to rotate the clamp ring 3 on the catheter handle 1 .
  • the two free ends 21 of the clamp ring 3 are provided with hooks 33 respectively, and the outer wall of the catheter handle 1 is provided with a plurality of buckles 34 at intervals in the circumferential direction; the hooks 33 are detachably connected to the buckles 34, and The connection between the hook 33 and the buckle 34 at different positions can make the clamping ring 3 and the catheter handle 1 form different connection angles.
  • the hook 33 and the buckle 34 By setting the structure of the hook 33 and the buckle 34, when the clamping ring 3 rotates at a corresponding angle, it needs to be fixed. Just connect the hook 33 on the clamping ring 3 with the buckle 34 at the corresponding position.
  • a handle 35 is provided on the clamping ring 3, and the handle 35 is in the shape of a round cake.
  • the fixed end 22 of the lead wire 2 is suspended on the notch of the first groove 13.
  • This arrangement can separate the fixed end 22 of the lead wire 2 from the free end 21.
  • the fixing of the lead wire 2 The end 22 is suspended in the air, and when a cutting operation is required, the scissors are inserted into the first groove 13 to cut off the lead wire 2 .
  • the lead wire installation structure can quickly complete the cutting of the lead wire 2 and the pulling out of the drainage catheter, and the operation is simple, fast, safe and reliable.
  • Fig. 5 is a schematic structural view of a drainage catheter provided by an embodiment of the present invention.
  • the drainage catheter includes a catheter 4 , a lead wire 2 and the lead wire installation structure in the above embodiment.
  • the lead wire 2 is arranged in the perforation 11 of the catheter 4 and the catheter handle 1, the lead wire 2 is one or two, the lead wire 2 located in the wire is fixedly connected with the front end of the catheter 4, and the lead wire 2 located in the perforation 11 includes two ends , one is the free end 21 of the lead wire 2, and the other is the fixed end 22 of the lead wire 2.
  • the free end 21 of the lead wire 2 is tightened so that the end of the conduit 4 is tightened and bent.
  • the catheter 4 returns to straight, cut off the fixed end 22 of the lead wire 2, and after eliminating the pulling force of the lead wire 2, the catheter 4 returns to a straight tube shape, and the catheter 4 can be taken out.
  • the free end 21 and the fixed end 22 of the lead wire 2 are separated, and the fixed end 22 is partly arranged on the first groove, which is convenient for cutting, and the operation is simple, fast, safe and reliable.

Abstract

一种用于引流导管的引线安装结构和引流导管，该引线安装结构包括导管手柄（1），导管手柄（1）包括用于与导管（4）连通的穿孔（11）；导管手柄（1）的侧壁设有用于穿出引线（2）的通孔（12），引线（2）的自由端（21）和固定端（22）经由通孔（12）穿出导管手柄（1）并与导管手柄（1）的外壁连接；导管手柄（1）的外壁设有第一凹槽（13），第一凹槽（13）一对相对的侧壁分别设有第一穿孔（14）和第二穿孔（15），用于使引线（2）的固定端（22）用于依次穿过第一穿孔（14）和第二穿孔（15），从而使引线（2）部分悬空设置在第一凹槽（13）的槽口处。该用于引流导管的引线安装结构可快速完成引线（2）剪断、以及引流导管的拔出操作，操作简单快捷，安全可靠。

Description

一种用于引流导管的引线安装结构和引流导管 技术领域
本发明涉及医疗器械技术领域，特别地涉及一种用于引流导管的引线安装结构和引流导管。
背景技术
引流导管是一种供临床外科引流使用的医疗器械，其可将人体组织间或体腔中积聚的脓、血、液体导引至体外，以防止术后感染、促进伤口愈合。临床上外科引流管的应用较为广泛，有的用于导尿，有的用于伤口，以及胸腔、脑腔、胃肠道、胆道等都有应用。
为了将引流导管固定在人体内防止被外力拉扯出，通常引流管的尖端部会设有定位结构。目前常用的定位结构为：在尖端进入患者的腔体后，用穿过手柄端的引线将引流管的尖端拉弯呈“猪尾巴”状，即引流管的尖端宽度增大，不易由引流管的穿入孔拔出，从而实现引流导管在人体中的定位。其中，引线的两端穿过手柄端的一个橡胶垫后露出在外，以方便拉紧操作，橡胶垫与引线之间的摩擦力可以防止引线的松动。需要拆下引流导管时，将引线剪断，消除引线拉力后，引流导管的尖端自动回直，从而可将引流导管取出。
引线上需要剪断的部分在橡胶垫后，由于两根引线的位置较为靠近，需要将两根线分开后才能将其中的一根剪断，使得剪断引线操作较为复杂；或者，还可采用将导管和引线一同剪断的操作方式，虽然操作简单，但是可能出现引流管内的液体流出而污染伤口的问题。
为解决上述问题，现有的引流导管在手柄端设置三通接头，将三通接头的一个接头单独设置引线。但是，设置三通接头后，导致引流导管手柄 端的体积较大，从而使引流导管容易被碰触到，易出现被拉扯的现象。
发明内容
本发明提供了一种用于引流导管的引线安装结构和引流导管，将待剪断的引线部分设置在第一凹槽的槽口上，引线部分悬空设置，需要剪断操作时，剪断悬空部分即可，操作简单快捷。
本发明的一个方面，提供了一种用于引流导管的引线安装结构，包括导管手柄，导管手柄包括用于与导管连通的穿孔；导管手柄的侧壁设有用于穿出引线的通孔，使引线的自由端和固定端经由通孔穿出导管手柄并与导管手柄的外壁连接；导管手柄的外壁设有第一凹槽，第一凹槽一对相对的侧壁分别设有第一穿孔和第二穿孔，用于使引线的固定端用于依次穿过第一穿孔和第二穿孔，从而使引线部分悬空设置在第一凹槽的槽口处。
可选地，导管手柄的外壁设有第二凹槽，第二凹槽的侧壁凸出于导管手柄的外壁表面，第二凹槽的槽口上设有密封盖；通孔设于第二凹槽的底部，第一凹槽设于密封盖的表面；第二凹槽的侧壁设有导出孔，用于使引线的自由端依次经由通孔和导出孔穿出导管手柄，并与导管手柄的外壁连接；第一穿孔与第二凹槽连通，用于使引线的固定端依次经由通孔和第一穿孔穿出导管手柄。
可选地，密封盖的侧壁与第二凹槽的侧壁之间设有间隔，从而形成腔室；腔室用于使引线的固定端设于腔室内，并与腔室的内壁固定连接。
可选地，还包括密封垫，密封垫填充于第二凹槽内，密封垫设有用于使引线的自由端和固定端穿过的孔。
可选地，密封盖与第二凹槽通过锁紧结构可拆卸连接。
可选地，锁紧结构包括锁孔和锁钩，锁孔和锁钩可拆卸连接；锁孔设于密封盖的侧壁，锁钩设于第二凹槽的侧壁，或者，锁钩设于密封盖的侧 壁，锁孔设于第二凹槽的侧壁。
可选地，还包括用于套设于导管手柄上的卡线环；卡线环上设有连接孔，用于使引线的自由端通过连接孔与卡线环连接。
可选地，卡线环上设有缺口，卡线环通过缺口与导管手柄可拆卸连接。
可选地，卡线环的两个自由端分别设有卡钩，导管手柄呈圆柱状，导管手柄的外壁沿周向间隔设有多个卡扣；卡钩与卡扣可拆卸连接，并且卡钩与不同位置的卡扣连接能使卡线环和导管手柄形成不同的连接角度。
可选地，卡线环上设有手柄。
本发明的另一个方面，还提供了一种引流导管，包括导管、引线和上述用于引流导管的引线安装结构。
根据本发明提供的技术方案，将引线的固定端悬空设置在第一凹槽的槽口上，此设置方式，既能将引线的固定端和自由端分离，同时，引线的固定端悬空设置，需要剪断操作时，剪刀插入第一凹槽，将引线剪断即可。此引线安装结构，可快速完成引线剪断、以及引流导管的拔出操作，操作简单快捷，安全可靠。
附图说明
为了说明而非限制的目的，现在将根据本发明的优选实施例、特别是参考附图来描述本发明，其中：
图1是本发明实施方式提供的用于引流导管的引线安装结构的结构示意图；
图2是本发明实施方式提供的用于引流导管的引线安装结构的爆炸图；
图3是本发明实施方式提供的用于引流导管的引线安装结构的剖视图；
图4是图3中密封垫处的局部放大图；
图5是本发明实施方式提供的引流导管的结构示意图。
图中：
1：导管手柄；2：引线；3：卡线环；4：导管；
11：穿孔；12：通孔；13：第一凹槽；14：第一穿孔；15：第二穿孔；16：第二凹槽；161：导出孔；162：锁钩；17：密封盖；171：锁孔；18：腔室；19：密封垫；
21：自由端；22：固定端；
31：连接孔；32：缺口；33：卡钩；34：卡扣；35：手柄。
具体实施方式
下面结合附图和实施方式对本申请作进一步的详细说明。可以理解的是，此处所描述的具体实施方式仅用于解释相关内容，而非对本申请的限制。为简明起见，在本申请各实施方式的描述中，对于相同或者类似的装置/方法步骤，使用相同或者相似的附图标记。
需要说明的是，在不冲突的情况下，本申请中的实施方式及实施方式中的特征可以相互组合。
图1是本发明实施方式提供的用于引流导管的引线安装结构的结构示意图；图2是本发明实施方式提供的用于引流导管的引线安装结构的爆炸图；图3是本发明实施方式提供的用于引流导管的引线安装结构的剖视图；图4是图3中密封垫处的局部放大图。如图1至图4所示，引线安装结构包括导管手柄1，导管手柄1包括用于与导管4连通的穿孔11；导管手柄1的侧壁设有用于穿出引线2的通孔12，使引线2的自由端21和固定端22经由通孔12穿出导管手柄1并与导管手柄1的外壁连接；导管手柄1的外壁设有第一凹槽13，第一凹槽13一对相对的侧壁分别设有第一穿孔14和第二穿孔15，用于使引线2的固定端22用于依次穿过第一穿孔14和第二穿孔15，从而使引线2部分悬空设置在第一凹槽13的槽口处。
引流导管使用时，利用引线2的自由端21使导管4的端部收紧拉弯，引线2的固定端22始终保持固定状态，需要剪断操作(导管4回直)时，剪断引线2的固定端22即可。本发明实施方式中，将引线2的固定端22 部分横跨在第一凹槽13上，使该部分悬空设置，需要剪断操作时，剪断引线2的悬空部分即可。悬空部分具有充足的预留空间，并且与引线2的自由端21分隔设置，操作时，剪刀插入第一凹槽13，将引线2剪断即可。
如图1至图4所示，本发明实施方式中，导管手柄1的外壁设有第二凹槽16，第二凹槽的侧壁凸出于导管手柄1的外壁表面，第二凹槽16的槽口上设有密封盖17；通孔12设于第二凹槽16的底部，第一凹槽13设于密封盖17的表面；第二凹槽16的侧壁设有导出孔161，用于使引线2的自由端21依次经由通孔12和导出孔161穿出导管手柄1，并与导管手柄1的外壁连接；第一穿孔14与第二凹槽16连通，用于使引线2的固定端22依次经由通孔12和第一穿孔14穿出导管手柄1。利用密封盖17和第二凹槽16，将通孔12封挡，实现通孔12的密封设置。优选地，在第二凹槽16内填充密封垫19，利用密封垫19进一步将通孔12封堵，确保通孔12的密封效果，其中，密封垫19有用于使引线2的自由端21和固定端22穿过的孔，密封垫19采用具有一定弹性的材质，如橡胶，即使引线2的自由端21和固定端22穿过密封垫19，在材质回弹作用下，密封垫19能将引线的孔挤压，从而使密封垫19仍处于封闭状态。
本发明实施方式中，密封盖17的侧壁与第二凹槽16的侧壁之间设有间隔，从而形成腔室18；腔室18用于使引线2的固定端22设于腔室18内，并与腔室18的内壁固定连接。作为更优的实施例，将引线2的固定端22设置在第二凹槽16的外壁，将引线2的固定端22设置在第二凹槽16上，此方式不影响密封盖17的开关。
本发明实施方式中，密封盖17与第二凹槽16通过锁紧结构可拆卸连接。如图1和图2所示，锁紧结构包括锁孔171和锁钩162，锁孔171和锁钩162可拆卸连接；锁孔171设于密封盖17的侧壁，锁钩162设于第二凹槽16的侧壁，或者，锁钩162设于密封盖17的侧壁，锁孔171设于第二凹槽16的侧壁。将密封盖17设置为可拆卸结构方便对引线2进行操作。
如图1和图2所示，引线安装结构还包括用于套设于导管手柄1上的卡线环3；卡线环3上设有连接孔31，用于使引线2的自由端21通过连接孔31与卡线环3连接。卡线环3用于对引线2进行收紧或放松操作，如在进行收紧拉弯操作时，拉动或转动卡线环3，卡线环3带动引线2的自由端21移动，引线2拉紧导管4的端部，到达指定位置后，将卡线环3固定即可。
作为本发明的优选实施方式，导管手柄1呈圆柱状，卡线环3上设有缺口32，卡线环3通过缺口32与导管手柄1可拆卸连接。在对引线2进行收紧或放松操作时，在导管手柄1上转动卡线环3即可。优选地，卡线环3的两个自由端21分别设有卡钩33，导管手柄1的外壁沿周向间隔设有多个卡扣34；卡钩33与卡扣34可拆卸连接，并且卡钩33与不同位置的卡扣34连接能使卡线环3和导管手柄1形成不同的连接角度，通过设置卡钩33和卡扣34结构，当卡线环3转动相应角度后，需要固定时，将卡线环3上的卡钩33与对应位置的卡扣34卡接即可。
如图1至图4所示，卡线环3上设有手柄35，手柄35呈圆饼状，操作卡线环3时，手持手柄35进行相应的操作即可。
本发明实施方式中，将引线2的固定端22悬空设置在第一凹槽13的槽口上，此设置方式，既能将引线2的固定端22和自由端21分离，同时，引线2的固定端22悬空设置，需要剪断操作时，剪刀插入第一凹槽13，将引线2剪断即可。此引线安装结构，可快速完成引线2剪断、以及引流导管的拔出操作，操作简单快捷，安全可靠。
图5是本发明实施方式提供的引流导管的结构示意图。如图5所示，引流导管包括导管4、引线2和上述实施方式中的引线安装结构。引线2设置在导管4和导管手柄1的穿孔11内，引线2为一根或两根，位于导线内的引线2与导管4的前端固定连接，位于穿孔11内的引线2包括两个端头，一个为引线2的自由端21，一个为引线2的固定端22，需要拉弯导管4端头时，拉紧引线2的自由端21，使导管4的端部收紧拉弯，需 要时导管4回直时，剪断引线2的固定端22，消除引线2的拉力后，导管4恢复成直管状，取出导管4即可。
本发明实施方式中，引线2的自由端21和固定端22分离，并且固定端22部分设置在第一凹槽上，方便进行剪断，操作简单快捷，安全可靠。
上述具体实施方式，并不构成对本发明保护范围的限制。本领域技术人员应该明白的是，取决于设计要求和其他因素，可以发生各种各样的修改、组合、子组合和替代。任何在本发明的精神和原则之内所作的修改、等同替换和改进等，均应包含在本发明保护范围之内。

Claims (11)

  1. 一种用于引流导管的引线安装结构，其特征在于，包括导管手柄(1)，导管手柄(1)包括用于与导管(4)连通的穿孔(11)；
    导管手柄(1)的侧壁设有用于穿出引线(2)的通孔(12)，使引线(2)的自由端(21)和固定端(22)经由通孔(12)穿出导管手柄(1)并与导管手柄(1)的外壁连接；
    导管手柄(1)的外壁设有第一凹槽(13)，第一凹槽(13)一组相对的侧壁分别设有第一穿孔(14)和第二穿孔(15)，用于使引线(2)的固定端(22)用于依次穿过第一穿孔(14)和第二穿孔(15)，从而使引线(2)部分悬空设置在第一凹槽(13)的槽口处。
  2. 根据权利要求1所述的用于引流导管的引线安装结构，其特征在于，导管手柄(1)的外壁设有第二凹槽(16)，第二凹槽的侧壁凸出于导管手柄(1)的外壁表面，第二凹槽(16)的槽口上设有密封盖(17)；
    通孔(12)设于第二凹槽(16)的底部，第一凹槽(13)设于密封盖(17)的表面；
    第二凹槽(16)的侧壁设有导出孔(161)，用于使引线(2)的自由端(21)依次经由通孔(12)和导出孔(161)穿出导管手柄(1)，并与导管手柄(1)的外壁连接；
    第一穿孔(14)与第二凹槽(17)连通，用于使引线(2)的固定端(22)依次经由通孔(12)和第一穿孔(14)穿出导管手柄(1)。
  3. 根据权利要求2所述的用于引流导管的引线安装结构，其特征在于，密封盖(17)的侧壁与第二凹槽(16)的侧壁之间设有间隔，从而形成腔室(18)；
    腔室(18)用于使引线(2)的固定端(22)设于腔室(18)内，并与腔室(18)的内壁固定连接。
  4. 根据权利要求2所述的用于引流导管的引线安装结构，其特征在 于，还包括密封垫(19)，密封垫(19)填充于第二凹槽(16)内，密封垫(19)设有用于使引线(2)的自由端(21)和固定端(22)穿过的孔。
  5. 根据权利要求2至4中任一项所述的用于引流导管的引线安装结构，其特征在于，密封盖(17)与第二凹槽(16)通过锁紧结构可拆卸连接。
  6. 根据权利要求5所述的用于引流导管的引线安装结构，其特征在于，锁紧结构包括锁孔(171)和锁钩(162)，锁孔(171)和锁钩(162)可拆卸连接；
    锁孔(171)设于密封盖(17)的侧壁，锁钩(162)设于第二凹槽(16)的侧壁，
    或者，
    锁钩(162)设于密封盖(17)的侧壁，锁孔(171)设于第二凹槽(16)的侧壁。
  7. 根据权利要求1至4中任一项所述的用于引流导管的引线安装结构，其特征在于，还包括用于套设于导管手柄(1)上的卡线环(3)；
    卡线环(3)上设有连接孔(31)，用于使引线(2)的自由端(21)通过连接孔(31)与卡线环(3)连接。
  8. 根据权利要求7所述的用于引流导管的引线安装结构，其特征在于，卡线环(3)上设有缺口(32)，卡线环(3)通过缺口(32)与导管手柄(1)可拆卸连接。
  9. 根据权利要求8所述的用于引流导管的引线安装结构，其特征在于，卡线环(3)的两个自由端分别设有卡钩(33)，导管手柄(1)呈圆柱状，导管手柄(1)的外壁沿周向间隔设有多个卡扣(34)；
    卡钩(33)与卡扣(34)可拆卸连接，并且卡钩(33)与不同位置的卡扣(34)连接能使卡线环(3)和导管手柄(1)形成不同的连接角度。
  10. 根据权利要求7所述的用于引流导管的引线安装结构，其特征在于，卡线环(3)上设有手柄(35)。
  11. 一种引流导管，其特征在于，包括导管(4)、引线(2)和如权利要求1至10中任一项所述的用于引流导管的引线安装结构。
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