CN219662430U - Liquid drainage tube and liquid drainage device - Google Patents

Abstract

The utility model discloses a liquid drainage tube and a liquid drainage device. The liquid discharging drainage tube comprises a tube body and a shrinkage and expansion structure. The pipe body is provided with a splicing end part and an outer row end part, a drainage channel is formed in the pipe body, the splicing end part of the pipe body is inserted into the pipeline, and the drainage channel is communicated with the pipeline. The shrinkage and expansion structure comprises at least one air bag and a pressure guiding pipe, wherein the air bag is arranged at the inserting end part, a contractible and expandable annular air chamber is formed in the peripheral wall of the inserting end part, the pressure guiding pipe is arranged at the pipe body, one end of the pressure guiding pipe is communicated with the annular air chamber, and the other end of the pressure guiding pipe is connected with an external pressure regulating part in a controllable opening and closing manner, so that when the pressure regulating part changes the pressure in the annular air chamber through the pressure guiding pipe, the air bag correspondingly contracts or expands.

Description

Liquid drainage tube and liquid drainage device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a liquid drainage tube and a liquid drainage device.

Background

In the case of a duodenal resection, it is often the case that the common hepatic duct is in an isolated state, but when it is necessary to anastomose the bile in the liver flows into the abdominal cavity of the patient through the fracture of the common hepatic duct, which may increase the risk of infection at the surgical site. Thus, during surgery, the fracture site of the patient's hepatic duct needs to be treated.

The prior technical scheme mainly has two kinds, one is that a black bifilar silk thread is adopted to bind and ligate the common bile duct, bile is prevented from flowing out of the common bile duct in a short time, the treatment method can bring cholestasis risk to the damaged liver, postoperative rehabilitation of a patient is affected, in addition, if the ligature force is too large in the process of ligating the common bile duct, the bile duct wall of the common bile duct is damaged, and healing of the later period of the common bile duct is affected. The other is to insert the nasal biliary drainage tube into the liver main tube to drain bile by means of the nasal biliary drainage tube, however, the nasal biliary drainage tube lacks a fixed structure, is easy to slip from the liver main tube, and has poor bile drainage effect. If the silk thread is adopted to bind and ligate the nasal biliary drainage tube and the common hepatic duct, the common hepatic duct is also easy to be damaged.

Disclosure of Invention

One advantage of the present utility model is to provide a fluid drainage catheter and a fluid drainage device in which the fluid drainage catheter can be stably inserted into the hepatic duct of a patient by inflation and deflation of a balloon without losing the hepatic duct of the patient.

The utility model has the advantages that the liquid drainage tube and the liquid drainage device are provided, wherein the end face of the air bag in the liquid drainage tube is level with the tube opening of the tube body, so that most bile in the liver main tube can be discharged.

The utility model has the advantages that the liquid drainage tube and the liquid drainage device are provided, wherein the tube opening of the tube body is provided with the flexible part, the flexible part is connected with the air bag, and when the air bag expands, the tube opening of the tube body can be enlarged, so that bile can smoothly enter the tube body.

To achieve at least one of the above advantages, the present utility model provides a liquid discharge drain tube inserted into a tube of a human organ and adapted to stably guide liquid discharge in the tube, the liquid discharge drain tube comprising:

a tube body having a plug end and an outer end, the tube body defining a drainage channel, the plug end of the tube body being inserted into the conduit, the drainage channel in communication with the conduit; and

the shrinkage and expansion structure comprises at least one air bag and a pressure guide pipe, wherein the air bag is arranged at the inserting end part, a contractible and expandable annular air chamber is formed in the peripheral wall of the inserting end part, the pressure guide pipe is arranged at the pipe body, one end of the pressure guide pipe is communicated with the annular air chamber, and the other end of the pressure guide pipe is connected with an external pressure regulating part in a controllable opening and closing manner, so that when the pressure regulating part changes the pressure in the annular air chamber through the pressure guide pipe, the air bag correspondingly contracts or expands.

According to one embodiment of the utility model, the impulse pipe is at least partially attached to the outer wall of the pipe body.

According to one embodiment of the utility model, an end part of the impulse pipe, which is far away from the air bag, is provided with a switch valve, and the switch valve is used for controlling the on-off of the impulse pipe and the air bag.

According to an embodiment of the utility model, the number of air bags is embodied as one, and the end surface of the air bag far away from the pipe body is flush with the pipe mouth of the plugging end part.

According to an embodiment of the present utility model, the air bag includes a shaping area and a deformation area, the compressive deformation amount of the shaping area is smaller than the compressive deformation amount of the deformation area, the shaping area is annularly disposed on the outer peripheral wall of the plugging end, the deformation area is disposed in the shaping area, and the deformation area is close to the pipe orifice of the plugging end.

According to an embodiment of the utility model, the plug end has an annular flexible portion at the nozzle, which flexible portion at least partially coincides with the deformation zone.

According to an embodiment of the present utility model, the deformation region is provided in a circular shape, the deformation region has a small diameter side and a large diameter side, and a region of the deformation region near the small diameter side coincides with the flexible portion.

According to an embodiment of the utility model, a side of the deformation zone near the large diameter side is provided as a plane.

According to one embodiment of the utility model, the outer end of the tube body is communicated with a storage piece, and the storage piece is used for collecting and storing liquid.

To achieve at least one of the above advantages, the present utility model provides a liquid drainage device comprising:

a storage member; and

the liquid discharge draft tube according to the above embodiment, said storage member is connected to the discharge end of said liquid discharge draft tube.

Drawings

FIG. 1 shows a perspective view of a liquid drainage tube according to the present utility model.

Fig. 2 shows a schematic view of the partial insertion of the fluid drainage device of the present utility model into the hepatic duct.

FIG. 3 shows a cross-sectional view of the plug end of the liquid drainage tube of the present utility model.

FIG. 4 shows a perspective view of the deformation zone of the liquid evacuation drainage tube according to the present utility model.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Referring to fig. 1 to 4, a liquid discharge drainage device according to a preferred embodiment of the present utility model will be described in detail below. The liquid discharge drainage device comprises a liquid discharge drainage tube, a storage piece 30 and a pressure regulating piece 40.

The liquid drainage tube is flexible, and is suitable for being inserted into a pipeline of an organ of a human body after being bent. For example, the fluid drainage tube is inserted into a hepatic duct 900 and is used to guide bile drainage from the hepatic duct 900.

The liquid drainage tube comprises a tube body 10 and a shrinkage and expansion structure 20.

The two ends of the tube body 10 respectively form a plugging end 11 and an outer row end 12, the tube body 10 forms a drainage channel 101, and the plugging end 11 is suitable for being plugged into the liver manifold 900, so that the drainage channel 101 is communicated with the liver manifold 900. The discharge end 12 is connected to the storage element 30, so that bile can flow from the discharge end 12 into the storage element 30 when bile enters the drainage channel 101 from the insertion end 11.

The collapsing structure 20 comprises at least one air bag 21 and a pressure guiding tube 22, wherein the air bag 21 is arranged at the plugging end 11, and a collapsible annular air chamber 2101 is formed on the outer peripheral wall of the plugging end 11, the pressure guiding tube 22 is arranged at the tube body 10, one end of the pressure guiding tube 22 is communicated with the annular air chamber 2101 of the air bag 21, and the other end of the pressure guiding tube 22 is connected with an external pressure regulating member 40 in a controllable opening and closing manner. When the pressure regulator 40 changes the pressure in the annular air chamber 2101 through the impulse pipe 22, the air bag 21 is correspondingly contracted or expanded. When the pressure regulator 40 introduces pressure into the inside of the annular air chamber 2101 through the pressure guide pipe 22, the annular air chamber 2101 expands, and the outer diameter of the annular air chamber 2101 increases; when the pressure regulator 40 reduces the pressure in the annular plenum 2101, the bladder 21 collapses and the outer diameter decreases.

Specifically, the tube body 10 and the impulse tube 22 are both implemented as flexible tubes, and the flexible tube body 10 and the flexible impulse tube 22 can be bent at will, so that the insertion end 11 can be inserted into the hepatic duct 900 smoothly.

When bile in the liver manifold 900 needs to be discharged, the pressure in the annular air chamber 2101 is reduced by adopting the pressure regulating piece 40 in advance, so that the air bag 21 can be inserted into the liver manifold 900, after the air bag 21 enters the liver manifold 900, the pressure in the air bag 21 is increased by virtue of the pressure regulating piece 40, so that the outer diameter of the annular air chamber 2101 is increased, the outer wall of the air bag 21 is contacted with the inner wall of the liver manifold 900, the tube body 10 is fixed in the liver manifold 900, the drainage channel 101 of the tube body 10 is communicated with the liver manifold 900, and bile in the liver manifold 900 can enter the drainage channel 101.

The tube body 10 and the hepatic duct 900 are connected from the inside by adopting the inflation mode of the air bag 21, and compared with the ligation mode of the traditional silk thread, the contact area between the air bag 21 and the hepatic duct 900 is larger, so that the hepatic duct 900 is not damaged.

In addition, since the balloon 21 is in contact with the hepatic duct 900 by being inflated, the balloon 21 can be in stable contact with the inner wall of the hepatic duct 900, so that no gap exists between the balloon 21 and the hepatic duct 900, a stable passage can be ensured between the drainage passage 101 and the hepatic duct 900, bile can smoothly flow into the drainage passage 101, and can be discharged from the discharge end 12. Therefore, when a doctor performs an operation on a patient, the liquid drainage tube is inserted into the cut-off part of the liver main tube 900, so that bile can be smoothly and stably drained outwards, and bile is prevented from flowing into the abdominal cavity of the patient, and the doctor is facilitated to perform the operation on the patient.

The number of the air bags 21 may be plural, the plural air bags 21 are sequentially sleeved on the outer wall of the insertion end portion 11 in the axial direction of the insertion end portion 11, and the plural air bags 21 are simultaneously communicated with one impulse pipe 22. By expanding the plurality of the balloons 21 inside the hepatic duct 900, the contact area between the balloons 21 and the hepatic duct 900 can be increased, and the stability of the fixation of the tubular body 10 in the hepatic duct 900 can be improved.

Specifically, the present utility model is described by taking one of the airbags 21 as an example. The air bag 21 is arranged at the plug end 11, and the end face of the air bag 21 facing away from the plug end 11 is flush with the pipe orifice of the plug end 11. When the tube body 10 is positioned in the liver common tube 900, since the air bag 21 is flush with the orifice of the tube body 10, bile of the liver common tube 900 can smoothly flow into the drainage channel 101 through the orifice of the tube body 10, can smoothly drain the liver common tube 900 through the tube body 10, and ensures that most of the bile is drained out of the liver common tube 900. Defining the position of the balloon 21 in the tube 10 can avoid part of bile from remaining in the hepatic duct 900, ensuring that most of the bile is expelled.

The impulse pipe 22 is at least partially attached to the outer wall of the pipe body 10, and the impulse pipe 22 and the pipe body 10 are integrated together, so that the two can be effectively prevented from being wound.

The liquid drainage tube further comprises a switch valve 50, wherein the switch valve 50 is arranged on the pressure guiding tube 22 and is used for controlling the on-off state of the pressure guiding tube 22 and the external pressure regulating member 40. When the pipe orifice of the pressure guide pipe 22 is communicated with the pressure regulating part 40 outside, the switch valve 50 is opened, the pressure regulating part 40 can guide pressure into the air bag 21, after the pressure inside the air bag 21 reaches a preset value, the switch valve 50 is closed, the pressure regulating part 40 is disconnected, the pressure inside the air bag 21 can be maintained by means of the switch valve 50, and the plugging end 11 can be ensured to be fixed in the liver main pipe 900 for a long time. When the tube body 10 is required to be removed from the liver manifold 900, the on-off valve 50 is opened to allow the air bag 21 to communicate with the atmospheric pressure, and the pressure release is completed, so that the insertion end 11 can be removed from the liver manifold 900.

Preferably, the impulse pipe 22 is separated from the pipe body 10 only at an end thereof remote from the air bag 21, so that the impulse pipe 22 is connected to the external pressure regulator 40. The on-off valve 50 may be implemented as a rubber stopper that may directly block a nozzle at a separate end of the impulse pipe 22 from the pipe body 10. When the pressure guide pipe 22 needs to be communicated with the pressure regulating part 40, the rubber plug is pulled out of the pressure guide pipe 22, then the pressure guide pipe 22 is communicated with the pressure regulating part 40, so that the pressure can be guided into the air bag 21 by the pressure regulating part 40, after the pressure in the air bag 21 reaches a preset value, the pressure guide pipe 22 is pinched, the pressure guide pipe 22 is separated from the pressure regulating part 40, and finally the rubber plug is plugged into the pressure guide pipe 22, so that the pressure in the air bag 21 is maintained.

The bladder 21 includes a shaped area 211 and a deformation area 212, wherein the deformation amount of the shaped area 211 is smaller than the deformation amount of the deformation area 212, and as will be understood by those skilled in the art, the deformation amount of the deformation area 212 is larger than the deformation amount of the shaped area 211 when the bladder 21 is pressurized. The shaping zone 211 is arranged on the outer circumferential wall of the plug end 11, wherein the deformation zone 212 is arranged on the shaping zone 211 and near the orifice of the plug end 11. Thus, when pressure is introduced into the inside of the annular air chamber 2101, both the shaping area 211 and the deformation area 212 are subjected to pressure and deformed at the same time, but the expansion of the air bag 21 mainly deforms from the deformation area 212.

In addition, because the deformation area 212 is close to the orifice of the insertion end 11, the deformation area 212 extends and expands in a direction away from the tube body 10, so that the contact position of the deformation area 212 and the liver manifold 900 is located above the orifice of the insertion end 11, the contact outer wall of the air bag 21 and the liver manifold 900 is not located below the orifice of the insertion end 11, a detention space is avoided between the air bag 21 and the inner wall of the liver manifold 900, and bile is prevented from being detention space, and most bile is ensured to be discharged.

The insertion end 11 has an annular flexible portion 111 at its mouth, which flexible portion 111 coincides with the deformation zone 212. When the deformation area 212 is compressed and expanded, the air bag 21 can drive the flexible portion 111 to expand together. In other words, when the outer diameter of the balloon 21 changes, the outer diameter of the flexible portion 111 changes together, so that the inner diameter of the flexible portion 111 can be increased, and the inner diameter of the orifice of the tube body 10 can be enlarged, thereby facilitating the bile in the liver manifold 900 to flow into the drainage channel 101 and facilitating the discharge of the bile.

Preferably, the deformation region 212 is configured as a ring shape, the ring-shaped deformation region 212 has a small diameter edge 2121 and a large diameter edge 2122, and a region of the deformation region 212 near the small diameter edge 2121 coincides with the ring-shaped flexible portion 111. When the deformation area 212 is deformed under pressure, the flexible portion 111 and the deformation area 212 are deformed at the same time, so that the inner diameter of the nozzle of the pipe body 10 is increased.

As shown in fig. 4, the side of the deformation zone 212 near the large diameter side 2122 is provided as a plane. When the deformation zone 212 expands, the deformation zone 212 can contact with the inner wall of the liver common pipe 900 by means of its own plane, and the contact area between the deformation zone 212 and the liver common pipe 900 can be increased by adopting the plane, so as to avoid overlarge pressure on a certain part of the liver common pipe 900 and improve the protection of the liver common pipe 900.

The outer end 12 of the tube body 10 is connected to a storage member 30, and the storage member 30 is used for storing bile discharged from the outer end 12, so as to collect and temporarily store bile, and avoid bile overflow. Preferably, the storage member 30 is implemented as a transparent material to facilitate the health care provider's view of the flow of liquid within the storage member 30.

Specifically, the storage member 30 is implemented as a plastic drainage bottle, which is low in cost and strong in versatility, and can be adapted to various occasions for use. The regulator 40 may be implemented as a syringe capable of introducing gas into the interior of the airbag 21 or sucking the gas in the airbag 21. Since the syringe is also capable of sucking the gas in the balloon 21, the pressure in the balloon 21 can be reduced, so that the balloon 21 is contracted, the insertion end 11 is conveniently taken out from the liver manifold 900, the balloon 21 is prevented from contacting the liver manifold 900, and the liver manifold 900 is prevented from being scratched due to the movement of the balloon 21.

More specifically, the volume of the injector is limited, so that the volume of the gas injected into the air bag 21 at one time by the injector is a fixed value, thereby being capable of limiting the air bag 21 to receive too much gas, limiting the air pressure in the air bag 21 to be too large, avoiding the air bag 21 from being excessively inflated, avoiding the liver manifold 900 from being excessively enlarged by the air bag 21, and avoiding the liver manifold 900 from being damaged.

It should be noted that the tube body 10, the storage member 30 and the pressure regulator 40 may be made of plastic, that is, medical plastic devices commonly used in the market, and the air bag 21 and the pressure guide tube 22 may be made of rubber products conforming to medical standards. Therefore, the liquid drainage device has low manufacturing cost, easily obtained materials and simpler use, can be produced in large quantity and used as a disposable product, and can effectively ensure the cleanliness of the liquid drainage device during use.

In addition, the storage member 30 is detachably connected with the pipe body 10 in a plugging manner. For different patients, when the internal and external discharge of bile of part of the patients is larger, the storage piece 30 is full, at this time, the storage piece 30 to be saturated can be replaced, and another new storage piece 30 is connected, so that bile of the patients can be smoothly discharged out of the body.

The liquid drainage device has a simple structure, adopts the way of expanding the air bag 21 to ensure that the plug end 11 is stably connected with the liver main pipe 900, and also can ensure that the plug end 11 and the liver main pipe 900 form good seal, thereby smoothly draining bile in the liver main pipe 900 outwards.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present utility model have been fully and effectively realized. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims (8)

1. A liquid discharge drain tube inserted into a tube of a human organ and adapted to stably guide liquid discharge in the tube, the liquid discharge drain tube comprising:

a tube body having a plug end and an outer end, the tube body defining a drainage channel, the plug end of the tube body being inserted into the conduit, the drainage channel in communication with the conduit; and

the compression and expansion structure comprises at least one air bag and a pressure guide pipe, the air bag is arranged at the insertion end part, a contractible and expandable annular air chamber is formed on the peripheral wall of the insertion end part, the pressure guide pipe is arranged on the pipe body, one end of the pressure guide pipe is communicated with the annular air chamber, and the other end of the pressure guide pipe is connected with an external pressure regulating part in a controllable opening and closing manner, so that when the pressure in the annular air chamber is changed by the pressure regulating part through the pressure guide pipe, the air bag correspondingly contracts or expands;

the pressure guide pipe is at least partially attached to the outer wall of the pipe body;

and a switch valve is arranged at one end part of the pressure guide pipe, which is far away from the air bag, and is used for controlling the on-off of the pressure guide pipe and the pressure regulating piece.

2. The liquid drainage catheter of claim 1, wherein the number of air bags is embodied as one, and the end surface of the air bag away from the catheter body is flush with the nozzle of the insertion end.

3. The drainage tube of claim 2, wherein the balloon comprises a shaping region and a deformation region, wherein the deformation region is less in compression than the deformation region, the shaping region is annularly arranged on the outer peripheral wall of the insertion end, the deformation region is arranged in the shaping region, and the deformation region is close to the orifice of the insertion end.

4. The liquid drainage tube of claim 3 wherein said plug end has an annular flexible portion at the orifice, said flexible portion at least partially coinciding with said deformation zone.

5. The liquid drainage tube of claim 4, wherein said deformation zone is provided in the shape of a circle, said deformation zone having a small diameter side and a large diameter side, and a region of said deformation zone adjacent to said small diameter side being coincident with said flexible portion.

6. The liquid evacuation drainage tube of claim 5, wherein a side of said deformation zone adjacent said large diameter side is configured as a planar surface.

7. The drain tube of claim 1, wherein the outer end of the tube body is in communication with a storage member for collecting and storing liquid.

8. The liquid drainage device that arranges outward, its characterized in that, liquid drainage device includes:

a storage member; and

the liquid discharge draft tube according to any one of claims 1 to 5, said storage member being connected to a discharge end of said liquid discharge draft tube.