CN215821861U - Anti-backflow drainage bag capable of being connected with central venous catheter - Google Patents
Anti-backflow drainage bag capable of being connected with central venous catheter Download PDFInfo
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- CN215821861U CN215821861U CN202122068543.5U CN202122068543U CN215821861U CN 215821861 U CN215821861 U CN 215821861U CN 202122068543 U CN202122068543 U CN 202122068543U CN 215821861 U CN215821861 U CN 215821861U
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- drainage bag
- central venous
- venous catheter
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- catheter
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Abstract
The utility model relates to the technical field of medical instruments, and provides an anti-backflow drainage bag which can be connected with a central venous catheter, which comprises the central venous catheter and a drainage bag, wherein the central venous catheter comprises a main catheter and a branch catheter, one end of the pipe opening of the branch catheter is provided with a threaded pipe joint, a liquid inlet of the drainage bag is provided with an anti-backflow joint, the anti-backflow joint is connected with a three-way valve, the three-way valve is connected with a drainage pipe, and the pipe joint of the drainage pipe is in threaded connection with the threaded pipe joint; the backflow prevention joint comprises a large-diameter portion, a connecting portion and a small-diameter portion, the large-diameter portion is provided with a telescopic rod, the telescopic rod is fixedly connected with a floating ball, the floating ball can stretch into/withdraw from the small-diameter portion, the backflow prevention joint is sealed/opened, and a water storage bin is arranged on one side of the floating ball, facing the large-diameter portion. The central venous catheter is convenient to connect with the drainage bag, and effusion in the drainage bag can be prevented from flowing back.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an anti-backflow drainage bag which can be connected with a central venous catheter.
Background
In an abdominal cavity or thoracic cavity puncture operation, a central venous catheter is usually placed into an abdominal cavity or a thoracic cavity for drainage, but the current central venous catheter cannot be directly connected with a drainage bag, and the drainage bag does not have a backflow prevention structure.
Therefore, how to solve the above problems becomes a focus of research by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anti-backflow drainage bag which can be connected with a central venous catheter, and aims to solve the problem of the prior art.
The embodiment of the utility model is realized by the following technical scheme:
an anti-backflow drainage bag capable of being connected with a central venous catheter comprises the central venous catheter and a drainage bag, wherein the central venous catheter comprises a main catheter and a branch pipe, a screwed pipe joint is arranged at one end of the pipe opening of the branch pipe, an anti-backflow joint is arranged at a liquid inlet of the drainage bag, the anti-backflow joint is connected with a three-way valve, the three-way valve is connected with a drainage pipe, and the pipe joint of the drainage pipe is in threaded connection with the screwed pipe joint;
the backflow prevention joint comprises a large-diameter portion, a linking portion and a small-diameter portion, one end of the large-diameter portion is connected with the drainage bag, one end of the small-diameter portion is connected with the three-way valve, the linking portion is connected with the large-diameter portion and the small-diameter portion smoothly, the large-diameter portion is provided with a telescopic rod, the telescopic rod is fixedly connected with a floating ball, the floating ball can stretch into/withdraw from the small-diameter portion, the backflow prevention joint is sealed/opened, and the floating ball is provided with a water storage bin towards one side of the large-diameter portion.
Further, the three-way valve is also connected with a Y-shaped pipe, and the Y-shaped pipe is used for connecting the flushing device and the sample sampling device.
Further, a cross frame is arranged in the large-diameter section, and the telescopic rod is fixed on the cross frame.
Further, the outer diameter of the floating ball is the same as the inner diameter of the small-diameter section.
Furthermore, the main conduit and the branch conduits are connected through a connector, the branch conduits have three branches, and the middle branch is connected with the drainage conduit.
Furthermore, each branch pipe is provided with a flow stopping clamp.
Further, the floating ball is a hollow ball body.
The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:
1. the utility model replaces the branch pipe joint of the central venous catheter with the threaded pipe joint, and simultaneously modifies the pipe joint of the drainage pipe to be matched with the threaded pipe joint, thereby facilitating the connection of the central venous catheter and the drainage bag.
2. One side of the liquid inlet of the drainage bag is provided with an anti-backflow joint, so that the liquid in the drainage bag is effectively prevented from flowing back into the abdominal cavity or the thoracic cavity.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of an anti-reflux drainage bag which can be connected with a central venous catheter and is provided by the embodiment 1 of the utility model;
FIG. 2 is a cross-sectional view of the backflow prevention fitting;
fig. 3 is a sectional view taken along a-a in fig. 2.
Icon: 1-central venous catheter, 101-main catheter, 102-branch catheter, 103-flow stopping clamp, 104-connector, 2-screwed pipe joint, 3-drainage tube, 4-three-way valve, 5-Y-shaped pipe, 6-backflow prevention joint, 601-large diameter part, 602-joining part, 603-small diameter part, 604-cross frame, 605-telescopic rod, 606-floating ball, 607-water storage bin and 7-drainage bag.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 3, the present embodiment provides a backflow-preventing drainage bag 7 connectable to a central venous catheter 1, including the central venous catheter 1 and the drainage bag 7, where the central venous catheter 1 includes a main catheter 101 and branch catheters 102, the main catheter 101 and the branch catheters 102 are connected by a coupler 104, the branch catheters 102 include three branches, each branch catheter 102 is provided with a flow-stopping clamp 103, a threaded pipe joint 2 is integrally formed on the branch catheter 102 in the middle, and the threaded pipe joint 2 is of an internal threaded type.
The inlet of drainage bag 7 is provided with anti-return joint 6, anti-return joint 6 is connected with three-way valve 4, three-way valve 4 is connected with drainage tube 3 and Y type pipe 5 respectively, and wherein Y type pipe 5 is used for connecting washing unit and sample sampling device, and the coupling of drainage tube 3 with screwed pipe connects 2 threaded connection to solve drainage bag 7 and central venous catheter 1 and be connected inconvenient problem.
The backflow prevention joint 6 comprises a large-diameter portion 601, a connection portion 602 and a small-diameter portion 603, one end of the large-diameter portion 601 is connected with a drainage bag 7, one end of the small-diameter portion 603 is connected with a three-way valve 4, the connection portion 602 is smoothly connected with the large-diameter portion 601 and the small-diameter portion 603, a cross frame 604 is integrally formed inside the large-diameter portion 601, a telescopic rod 605 is fixedly mounted on the cross frame 604, the telescopic rod 605 is composed of a plurality of telescopic joints sliding mutually, the telescopic rod 605 faces one side of the small-diameter portion 603, a floating ball 606 is arranged at the end portion of the telescopic rod 605, a jack is arranged on the outer wall of the floating ball 606, the telescopic rod 605 is inserted into the jack in an interference mode, the floating ball 606 is a hollow sphere, and a water storage bin 607 is arranged on one side of the large-diameter portion 601 facing the floating ball 606.
As can be seen from the above, the present embodiment provides a backflow-preventing drainage bag 7 connectable to the central venous catheter 1, and the usage method and principle thereof are as follows:
one end of a main catheter 101 of the central venous catheter 1 is placed into an abdominal cavity or a thoracic cavity, the middle branch pipe 102 is in threaded connection with the drainage tube 3, the flow stopping clamps 103 of the other two branch pipes 102 are closed, the flow stopping clamps 103 of the middle branch pipe 102 are opened, effusion in the abdominal cavity or the thoracic cavity enters the backflow preventing joint 6 through the drainage tube 3 and the three-way valve 4 from the central venous catheter 1, and at the moment, the pressure of the effusion gradually pushes the floating ball 606 out of the small-diameter part 603, so that the effusion enters the drainage bag 7 to complete drainage.
When the drainage bag 7 appears the backward flow, the partial fluid of backward flow flows into water storage bin 607, forms pressure to water storage bin 607, promotes floater 606 and enters into path portion 603 again, with the shutoff of anti-return joint 6 to avoid the hydrops backward flow.
In conclusion, the anti-backflow drainage bag which can be connected with the central venous catheter provided by the utility model has the following advantages:
1. the branch pipe joint of the central venous catheter is replaced by a threaded pipe joint, and the pipe joint of the drainage pipe is modified to be matched with the threaded pipe joint, so that the central venous catheter is conveniently connected with the drainage bag.
2. One side of the liquid inlet of the drainage bag is provided with an anti-backflow joint, so that the liquid in the drainage bag is effectively prevented from flowing back into the abdominal cavity or the thoracic cavity.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A backflow-preventing drainage bag (7) connectable to a central venous catheter (1), comprising a central venous catheter (1) and a drainage bag (7), characterized in that: the central venous catheter (1) comprises a main catheter (101) and a branch catheter (102), wherein a threaded pipe joint (2) is arranged at one end of a pipe opening of the branch catheter (102), an anti-backflow joint (6) is arranged at a liquid inlet of the drainage bag (7), the anti-backflow joint (6) is connected with a three-way valve (4), the three-way valve (4) is connected with a drainage pipe (3), and a pipe joint of the drainage pipe (3) is in threaded connection with the threaded pipe joint (2);
anti-return joint (6) are including major diameter portion (601), link up portion (602) and path portion (603), and drainage bag (7) are connected to major diameter portion (601) one end, and three-way valve (4) are connected to path portion (603) one end, link up the smooth connection of portion (602) major diameter portion (601) and path portion (603), major diameter portion (601) is provided with telescopic link (605), telescopic link (605) fixedly connected with floater (606), floater (606) can stretch into/withdraw from the path portion section, seals/opens anti-return joint (6), floater (606) are provided with water storage bin (607) towards major diameter portion (601) one side.
2. The anti-reflux drainage bag (7) connectable to a central venous catheter (1) according to claim 1, characterized in that: the three-way valve (4) is also connected with a Y-shaped pipe (5), and the Y-shaped pipe (5) is used for connecting a flushing device and a sample sampling device.
3. The anti-reflux drainage bag (7) connectable to a central venous catheter (1) according to claim 1, characterized in that: a cross frame (604) is arranged in the large-diameter part, and the telescopic rod (605) is fixed on the cross frame (604).
4. The anti-reflux drainage bag (7) connectable to a central venous catheter (1) according to claim 1, characterized in that: the outer diameter of the floating ball (606) is the same as the inner diameter of the small-diameter section.
5. The anti-reflux drainage bag (7) connectable to a central venous catheter (1) according to claim 1, characterized in that: the main conduit (101) and the branch conduit (102) are connected through a coupler (104), the branch conduit (102) has three branches, and the middle branch is connected with the drainage conduit (3).
6. The anti-reflux drainage bag (7) connectable to a central venous catheter (1) according to claim 5, characterized in that: each branch pipe (102) is provided with a flow stopping clip (103).
7. The anti-reflux drainage bag (7) connectable to a central venous catheter (1) according to claim 1, characterized in that: the floating ball (606) is a hollow sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122068543.5U CN215821861U (en) | 2021-08-30 | 2021-08-30 | Anti-backflow drainage bag capable of being connected with central venous catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122068543.5U CN215821861U (en) | 2021-08-30 | 2021-08-30 | Anti-backflow drainage bag capable of being connected with central venous catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215821861U true CN215821861U (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122068543.5U Active CN215821861U (en) | 2021-08-30 | 2021-08-30 | Anti-backflow drainage bag capable of being connected with central venous catheter |
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| Country | Link |
|---|---|
| CN (1) | CN215821861U (en) |
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2021
- 2021-08-30 CN CN202122068543.5U patent/CN215821861U/en active Active
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