CN218833273U

CN218833273U - External circulation system of bile

Info

Publication number: CN218833273U
Application number: CN202221477957.1U
Authority: CN
Inventors: 胡慧; 孙慧伶; 马丹丹; 吴�荣; 汪敏; 龚琳玲; 童诗怡; 余晓甜
Original assignee: General Hospital of Central Theater Command of PLA
Current assignee: General Hospital of Central Theater Command of PLA
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2023-04-11
Anticipated expiration: 2032-06-14

Abstract

The application relates to the technical field of medical apparatus and instruments, and provides a bile extracorporeal circulation system which comprises a drainage tube, a drainage bag, a transition tube, a liquid storage bag and a return tube which are sequentially communicated; the drainage tube is provided with a one-way valve, a filter net film is arranged in the drainage bag, and the edge of the filter net film is hermetically connected with the inner wall of the drainage bag; be provided with the open and close valve on the transition pipe, the liquid storage bag pass through threaded connection head with the one end intercommunication of back flow, by being close to on the back flow the one end of liquid storage bag is to keeping away from the one end of liquid storage bag has set gradually notes liquid mouth, drip the kettle, flow control valve and three-way valve. The utility model has the advantages that: the whole process does not need to split the system or replace the pipeline, so that the infection risk is avoided, the operation is simple, and the filter net film can effectively filter impurities of liquid entering the drainage bag.

Description

External circulation system of bile

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to bile extracorporeal circulation system.

Background

Liver and gallbladder diseases are frequently encountered diseases. Biliary obstruction often occurs in the late stage of malignant tumor, which causes increased biliary pressure, yellow staining of skin sclera and liver cell swelling, and leads to liver cell function damage and even multiple organ dysfunction. At the moment, the biliary tract pressure can be reduced through bile drainage, the liver function is improved, the pain of a patient is relieved, and the living quality of the patient is improved. The common bile extracorporeal circulation system firstly leads bile out of the biliary tract of a patient through the drainage bag, the bile in the drainage bag is stored to a certain amount, the bile in the drainage bag is poured into the glass bottle, then the bile in the glass bottle is injected into the intestinal tract of the patient, the whole bile extracorporeal circulation process and the device structure are relatively complex, the operation steps are complex, and the infection risk exists. In addition, the prior bile drainage and reflux methods are also suitable for extracorporeal circulation of intestinal fluid, but the intestinal fluid or bile contains a large amount of impurities, so that the intestinal fluid or bile cannot be directly refluxed and must be subjected to appropriate filtration treatment. However, the current filtration treatment mode usually adopts simple sterile gauze for filtration, the filtration effect is poor, and the sterile gauze is easy to block, thereby affecting the filtration efficiency of intestinal juice or bile.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problems of inconvenient operation and poor filtering effect of the prior bile drainage reflux device and provide a bile external circulation system which comprises a drainage tube, a drainage bag, a transition tube, a liquid storage bag and a reflux tube which are sequentially communicated; the drainage tube is provided with a one-way valve, a filter net film is arranged in the drainage bag, and the edge of the filter net film is hermetically connected with the inner wall of the drainage bag; the transition pipe is provided with an on-off valve, the liquid storage bag is communicated with one end of the return pipe through a threaded connector, and the return pipe is sequentially provided with a liquid injection port, a drip cup, a flow regulating valve and a three-way valve from one end close to the liquid storage bag to one end far away from the liquid storage bag;

the filter net film comprises a filter net bag, a first filter support sheet and a second filter support sheet; the filter net bag is of an inwards concave hemispherical filter membrane structure, and the opposite inner walls of the filter net bag are respectively provided with the first filter support sheet and the second filter support sheet which extend oppositely; the first filtering support sheet and the second filtering support sheet are both arc-surface-shaped filtering membrane structures, and at least part of the area of the first filtering support sheet is positioned above the second filtering support sheet and keeps a distance in the height direction.

Set up to the filter screen bag through filtering the nethike embrane, and set up first filtration backing sheet and second filtration backing sheet in the filter screen bag, realize the multiple filtration to partly bile, the filter effect is better, and filterable impurity deposits in the top of first filtration backing sheet and second filtration backing sheet, can not cause the jam to the filter screen bag, first filtration backing sheet and second filtration backing sheet keep the interval in the direction of height, make partial bile can directly filter through the filter screen bag, promote the filter velocity of bile, guarantee that at least partly filterable bile can be fast through filter screen bag to drainage bag bottom. In addition, the first filtering support sheet and the second filtering support sheet can also play a role in supporting the filtering net bag, so that the filtering net bag is prevented from being transversely extruded and deformed to reduce the effective filtering area.

Furthermore, ribs are arranged at the lower ends of the first filtering supporting sheet and the second filtering supporting sheet.

The beneficial effects of the above further scheme are: through the effect of rib, can improve the resistance to deformation of first filtration backing sheet and second filtration backing sheet, improve the bearing capacity, guarantee filter effect and to the supporting role of filtration string bag, guarantee great filter area.

Furthermore, scale marks are respectively arranged on the drainage bag and the liquid storage bag.

Furthermore, label patches are respectively arranged on the drainage bag and the liquid storage bag.

Furthermore, a hanging lug is arranged at one end of the liquid storage bag close to the drainage bag, and a first liquid inlet and outlet and a second liquid inlet and outlet are arranged at one end of the liquid storage bag far away from the drainage bag; and the first liquid inlet and outlet, the second liquid inlet and outlet and the liquid injection port are respectively provided with an openable sealing plug.

Furthermore, a pipe clamp is arranged on the return pipe.

The utility model has the advantages that: through the drainage tube that communicates in proper order, the drainage bag, the transition pipe, the effect of liquid storage bag and back flow, make the drainage tube can directly introduce drainage bag with bile or intestinal juice, can open the open and close valve as required, make bile or intestinal juice get into the liquid storage bag storage under the effect of transition pipe, and through the switching degree of adjusting the flow control valve, adjust the liquid flow of bile or intestinal juice that flows back to in the patient's intestinal, realize the adjustable of backward flow volume and be controllable, and whole process need not to carry out split or pipeline change to the system, the infection risk has been avoided, the operation is simple, the impurity that the net membrane can effective filtration got into the liquid in the drainage bag filters, it sets up in confined drainage bag to filter the net membrane, filter net membrane's edge and the inner wall sealing connection of drainage bag, the filter effect is good.

Drawings

Fig. 1 is a schematic view of the external circulation system of bile according to the present invention.

Fig. 2 is a schematic half-sectional perspective view of the filter net film of fig. 1.

Fig. 3 is a schematic front view of fig. 2.

In the figure, a drainage tube 1, a drainage bag 2, a transition tube 3, a liquid storage bag 4, a return pipe 5, a check valve 6, a filter net film 7, an opening and closing valve 8, a liquid filling port 9, a drip cup 10, a flow regulating valve 11, a three-way valve 12, a hanging lug 13, a first liquid inlet and outlet port 14, a second liquid inlet and outlet port 15, a pipe clamp 16, a filter screen pocket 17, a first filter support sheet 18, a second filter support sheet 19, ribs 20 and a threaded connector 21.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1 to 3 and the specific embodiments.

The bile extracorporeal circulation system as shown in fig. 1 comprises a drainage tube 1, a drainage bag 2, a transition tube 3, a liquid storage bag 4 and a return tube 5 which are communicated in sequence; the drainage tube 1 is provided with a one-way valve 6, the drainage bag 2 is internally provided with a filter net film 7, and the edge of the filter net film 7 is hermetically connected with the inner wall of the drainage bag 2. The transition pipe 3 is provided with an opening and closing valve 8, the liquid storage bag 4 is communicated with one end of a return pipe 5 through a threaded connector 21, and the return pipe 5 is sequentially provided with a liquid injection port 9, a drip cup 10, a flow regulating valve 11 and a three-way valve 12 from one end close to the liquid storage bag 4 to one end far away from the liquid storage bag 4.

The drainage bag 2 and the liquid storage bag 4 are respectively provided with scale marks. The volume of the liquid in the drainage bag 2 and the liquid storage bag 4 can be clearly known through the scale marks.

Label patches are respectively arranged on the drainage bag 2 and the liquid storage bag 4.

For example, in this embodiment, the label patch of the drainage bag 2 is marked with a date, time, and signature. IO, name and time are marked on the label sticker of the liquid storage bag 4. Of course, other indicia may be provided on the label patch.

In addition, the drainage bag 2 and the liquid storage bag 4 are both provided with at least one part of transparent structure so as to be convenient for observing the color of the liquid inside or the condition of impurities.

For example, one side of the bag body of the drainage bag 2 in this embodiment is a white film layer, and the other side is a transparent film layer, so that the color or impurity condition of bile or intestinal juice in the bag body can be clearly seen through the transparent film layer, and especially the filtering condition of the filter net film 7 can be observed.

One end of the liquid storage bag 4 close to the drainage bag 2 is provided with two hanging lugs 13, the hanging lugs 13 are arranged, the liquid storage bag 4 placed vertically is taken as an example, and the distance between the two hanging lugs 13 is symmetrically arranged on the top end of the liquid storage bag 4.

One end of the liquid storage bag 4 far away from the drainage bag 2 is provided with a first liquid inlet and outlet 14 and a second liquid inlet and outlet 15. The first and

second ports

14 and 15 are adapted to communicate with different types or different needs of syringes for injecting or withdrawing fluids.

The first liquid inlet and outlet 14, the second liquid inlet and outlet 15 and the liquid injection port 9 are respectively provided with an openable sealing plug. The sealing plug is preferably a rubber plug, for example, when it is necessary to inject a medicine into the return tube 5 from the injection port 9, the syringe pierces the sealing plug at the injection port 9, the medicine is injected into the return tube 5, the syringe is pulled out, and the sealing plug automatically closes the puncture hole formed by the syringe piercing on the sealing plug due to the elastic action of the rubber material.

The return pipe 5 is also provided with a pipe clamp 16. The pipe clamp 16 adopts a conventional structure, and the return pipe 5 can be closed by the pipe clamp 16, so that the liquid in the liquid storage bag 4 is prevented from entering the return pipe 5.

The threaded connector 21 in this embodiment includes a first threaded pipe having an external thread and one end of which is communicated with the outlet of the liquid storage bag 4, and a second threaded pipe having an internal thread and the internal thread is engaged with the external thread of the first threaded pipe, and the second threaded pipe is communicated with the return pipe 5. Obviously, the outer diameter of the second threaded pipe is larger than the outer diameter of the first threaded pipe. The return pipe 5 is in threaded connection with the first threaded pipe on the liquid storage bag 4 through the second threaded pipe on the return pipe, so that the detachable connection of the liquid storage bag 4 and the return pipe 5 can be realized, and the return pipe 5 can be conveniently replaced. In addition, the threaded connector 21 further includes a nut, which is connected to the first threaded pipe in a threaded manner and is used for sealing the first threaded pipe, so that when the second threaded pipe is separated from the first threaded pipe, the first threaded pipe can be sealed by the nut and the first threaded pipe, and the liquid in the liquid storage bag 4 can be prevented from flowing outwards.

Referring to fig. 2 and 3, the filter net film 7 of the present embodiment includes a filter net pocket 17, a first filter support sheet 18 and a second filter support sheet 19; the filter net bag 17 is of a concave hemispherical filter membrane structure, and the opposite inner walls of the filter net bag 17 are respectively provided with a first filter support sheet 18 and a second filter support sheet 19 which extend oppositely; the first filtering support sheet 18 and the second filtering support sheet 19 are both in a cambered surface-shaped filtering membrane structure, and at least part of the area of the first filtering support sheet 18 is positioned above the second filtering support sheet 19, and the distance is kept in the height direction.

When the drainage tube 1 introduces bile or intestinal juice into the drainage bag 2, the bile or intestinal juice firstly passes through the one-way valve 6 and then enters the bottom of the drainage bag 2 after passing through the filter net film 7. In this embodiment, the one-way valve 6 may allow bile or intestinal fluid to enter the drainage bag 2 from the drainage tube 1, but not allow the fluid of the drainage bag 2 to flow back into the drainage tube 1.

The filter net film 7 and the inner wall of the drainage bag 2 are enclosed to form a filter space, liquid of the drainage tube 1 firstly enters the filter space, particularly, most of the liquid firstly passes through the first filter support sheet 18 or the second filter support sheet 19 for filtration and then enters the bottom of the drainage bag 2 under the filtration action of the filter net bag 17, and a small part of the liquid of the drainage tube 1 entering the filter space directly enters the area between the first filter support sheet 18 and the filter net bag 17 and the area between the second filter support sheet 19 and the filter net bag 17 from the gap between the first filter support sheet 18 and the second filter support sheet 19, and then enters the bottom of the drainage bag 2 after being filtered by the filter net bag 17. The structural design of the filter net film 7 can ensure that most of liquid is filtered twice, has better filtering effect, can also ensure that a small part of liquid rapidly enters the bottom of the drainage bag 2 after being filtered once, provides liquid for the liquid storage bag 4, and ensures sufficient liquid supply, thereby not only having good filtering effect, but also ensuring the normal operation of bile or intestinal liquid extracorporeal circulation.

In order to prevent deformation of first filter support sheet 18 and second filter support sheet 19, the lower ends of first filter support sheet 18 and second filter support sheet 19 are provided with ribs 20.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that a person skilled in the art should also recognize that several modifications and decorations can be made without departing from the principle of the present invention, and the protection scope of the present invention is also covered.

Claims

1. A bile extracorporeal circulation system is characterized by comprising a drainage tube, a drainage bag, a transition tube, a liquid storage bag and a return tube which are communicated in sequence; the drainage tube is provided with a one-way valve, a filter net film is arranged in the drainage bag, and the edge of the filter net film is hermetically connected with the inner wall of the drainage bag; the transition pipe is provided with an on-off valve, the liquid storage bag is communicated with one end of the return pipe through a threaded connector, and the return pipe is sequentially provided with a liquid injection port, a drip cup, a flow regulating valve and a three-way valve from one end close to the liquid storage bag to one end far away from the liquid storage bag; the filter net film comprises a filter net bag, a first filter support sheet and a second filter support sheet; the filter net bag is of an inwards concave hemispherical filter membrane structure, and the opposite inner walls of the filter net bag are respectively provided with the first filter support sheet and the second filter support sheet which extend oppositely; the first filtering support sheet and the second filtering support sheet are both arc-surface-shaped filtering membrane structures, and at least part of the area of the first filtering support sheet is positioned above the second filtering support sheet and keeps a distance in the height direction.

2. The bile extracorporeal circulation system of claim 1, wherein the lower ends of the first and second filter support plates are provided with ribs.

3. The bile extracorporeal circulation system of claim 1, wherein the drainage bag and the reservoir bag are provided with graduation marks, respectively.

4. The bile extracorporeal circulation system of claim 1, wherein label patches are disposed on the drainage bag and the reservoir bag, respectively.

5. The bile extracorporeal circulation system of claim 1, wherein a hanging lug is provided at one end of the liquid storage bag close to the drainage bag, and a first liquid inlet and outlet and a second liquid inlet and outlet are provided at one end of the liquid storage bag far from the drainage bag; and the first liquid inlet and outlet, the second liquid inlet and outlet and the liquid injection port are respectively provided with an openable sealing plug.

6. The extracorporeal circulation system of bile of claim 1, wherein a tube clamp is further provided on the return tube.