CN217828472U - Drainage tube - Google Patents

Abstract

The utility model provides a drainage tube, relating to the technical field of medical equipment; the drainage tube comprises an outer tube, an inner core, a supporting structure and a drainage joint; wherein the outer tube is a soft tube; the front end of the outer pipe is provided with a ventilation section, and the ventilation section is provided with a plurality of ventilation holes; the inner core is a pipe body with the diameter smaller than that of the outer pipe; the inner core is arranged in the outer tube; the support structure is arranged between the outer tube and the inner core, and the support structure is arranged in the ventilation section; the drainage joint is connected to the rear end of the inner core. The utility model provides a drainage tube sets up the bilayer structure into including soft outer tube and the less inner core of diameter through with the drainage tube to set up bearing structure in the section of ventilating of outer tube, make this drainage tube can not buckle when putting into, the during operation can not take place to return flat under the burden, avoids the air vent to take place to block up, thereby guarantees that the drainage is unblocked, guarantees the drainage effect.

Description

Drainage tube

Technical Field

The utility model belongs to the technical field of the medical equipment technique and specifically relates to a drainage tube.

Background

Gastrointestinal decompression is that a drainage tube is inserted from an oral cavity or a nasal cavity by utilizing the principle of negative pressure suction or siphon, and gas and liquid accumulated in the gastrointestinal tract are sucked out through the drainage tube, so that the pressure and the expansion degree in the gastrointestinal tract can be reduced. The inserted drainage tube can also be used as a supporter for gastrointestinal operations. In gastrointestinal surgery, a drainage tube is used to drain liquid or gas in the stomach and intestine. In order to reduce the stimulation to organs and relieve the pain of patients, the body of the existing drainage tube is generally a soft tube made of medical silica gel and the like.

In the drainage process, the drainage tube needs to be connected with a corresponding aspirator and other structures, so that the drainage tube works under negative pressure; because the drainage tube is the software pipe, easily by inhaling flat when the during operation under the negative pressure, cause the drainage tube to block up, influence drainage effect.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve current drainage tube when the during operation easily by inhaling flat under the negative pressure, influence the problem of drainage effect, the utility model provides a drainage tube sets up the double-deck structure into including outer tube and inner tube through with the drainage tube to set up bearing structure between outer tube and inner tube, effectively prevent in the drainage tube working process by inhaling flat, guarantee the drainage effect.

The utility model provides a technical scheme that its technical problem adopted is: a drainage tube comprises an outer tube, an inner core, a supporting structure and a drainage joint; wherein the content of the first and second substances,

the outer tube is a soft tube;

the front end of the outer pipe is provided with a ventilation section, and the ventilation section is provided with a plurality of ventilation holes;

the inner core is a pipe body with the diameter smaller than that of the outer pipe;

the inner core is arranged in the outer tube;

the support structure is arranged between the outer tube and the inner core, and the support structure is arranged in the ventilation section;

the drainage joint is connected to the rear end of the inner core.

Optionally, the support structure comprises a spring.

Optionally, the drainage connector comprises a first connector connected with the inner core, and the inner core is inserted into the first connector; the outer diameter of the inner core is suitable for being matched with the inner diameter of the first connector, so that the inner core is inserted into the first connector, and the inner core is connected with the first connector in an inserted mode.

Optionally, the outer diameter of the first joint is suitable for matching with the inner diameter of the outer pipe, so that the first joint is inserted into the outer pipe, and the first joint is plugged with the outer pipe.

Optionally, at least one annular protrusion is arranged on the outer side of the first joint; the annular bulge is suitable for being matched with the outer pipe, so that the first joint is inserted into the outer pipe; the rear end of the outer tube is provided with a V-shaped notch.

Optionally, a pressure adjusting structure is connected to the drainage joint; the pressure regulating structure is adapted to regulate a pressure within the inner core.

Optionally, the pressure regulating structure comprises a connecting tube in communication with the drain fitting.

Optionally, the pressure regulating structure further comprises a regulating plate; the adjusting plate is connected to the outer end of the connecting pipe; the adjusting plate is provided with an adjusting hole communicated with the connecting pipe.

Optionally, the adjusting plate is an arc-shaped plate, and the center of the arc-shaped plate is recessed toward the direction close to the connecting pipe.

Optionally, the pressure regulating structure further comprises a plugging cap adapted to plug the regulating hole; the plugging cap is connected with the adjusting plate through a connecting line.

The beneficial effects of the utility model are that: the utility model provides a drainage tube sets up the bilayer structure into including soft outer tube and the less inner core of diameter through with the drainage tube to set up bearing structure in the section of ventilating of outer tube, make this drainage tube can not take place to return flat under the burden during operation, avoid the air vent to take place to block up, thereby guarantee that the drainage is unblocked, guarantee the drainage effect.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic view of the structure of a middle drainage tube of the present invention;

FIG. 2 is an exploded view of the middle drainage tube of the present invention;

fig. 3 is a schematic structural view of the drainage joint of the present invention.

In the figure: 1-an outer tube; 11-a vent hole; 12-a notch; 2-inner core; 3-a support structure; 4-a drainage joint; 41-a first joint; 411-annular projection; 42-a second linker; 43-a pressure regulating structure; 431-connecting pipe; 432-an adjusting plate; 4321-adjusting holes; 433-a plugging cap; 434-connecting line.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "first" and "second" are used merely for simplifying the description, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present disclosure, unless otherwise expressly stated or limited, a first feature "on" or "under" a first feature may comprise the first feature and a second feature in direct contact, or may comprise the first feature and the second feature not in direct contact but in contact with each other through another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lower level than the second feature.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In order to solve the problem that the existing drainage tube is easy to be shrunken when working under negative pressure, the utility model provides a drainage tube, which is shown in figures 1 and 2 and comprises an outer tube 1, an inner core 2, a supporting structure 3 and a drainage joint 4; wherein, because the outer tube 1 needs to contact with the organ in the use process, in order to reduce the stimulation to the organ, the outer tube 1 is preferably a soft body tube; specifically, the preferable material of the soft tube is medical TPU with high biocompatibility and flexibility; the front end of the outer tube 1 is provided with a ventilation section, and the ventilation section is provided with a plurality of ventilation holes 11, so that the drainage is realized by enabling the drainage tube to be communicated with the gastrointestinal tract through the ventilation holes 11.

It should be noted that, in the drainage tube of the present application, the end close to the organ is the front end, and the opposite end far from the organ is the back end.

The inner core 2 is a small-diameter pipe body, and particularly, the inner core 2 is preferably a pipe body with the diameter smaller than that of the outer pipe 1; in order to further improve the negative pressure resistance of the drainage tube, the support structure 3 is preferably arranged between the outer tube 1 and the inner core 2, namely, the outer tube 1, the support structure 3 and the inner core 2 are sequentially arranged from outside to inside; because the vent holes 11 of the outer tube 1 are arranged at the front end of the vent section, if the vent section collapses, the vent holes 11 at the position are blocked, and the drainage effect is affected; in order to avoid the blockage of the vent holes 11, the support structure 3 is preferably arranged in the vent section, on one hand, the vent section is supported by the support structure 3, and the vent section is prevented from being shriveled under the action of negative pressure to cause the blockage of the vent holes 11; on the other hand, because be provided with inner core 2 in the soft outer tube 1, through set up bearing structure 3 in the section of ventilating, can also guarantee to remain certain clearance throughout between section of ventilating and the inner core 2 of outer tube 1, avoid ventilating outer tube 1 of section department to paste under the negative pressure effect and cover on the outer wall of inner core 2 and lead to air vent 11 to block up to guarantee that the drainage is unobstructed.

The drainage joint 4 is used for connecting the drainage tube with a suction apparatus and other structures, and the drainage joint 4 is preferably connected to the rear end of the inner core 2.

In the working process of the drainage tube, one end of the drainage joint 4 is connected with the suction apparatus, and the other end is connected with the rear end of the inner core 2; after the front end of the drainage tube is arranged in the gastrointestinal tract, drainage is started through the suction apparatus, and negative pressure is generated in the inner core 2 and the outer tube 1; the inner core 2 has a smaller diameter, so that the inner core is not easy to deform under the action of negative pressure; simultaneously, under inner core 2 and bearing structure 3's supporting role, outer tube 1 can not take place to return flat, and the air vent 11 of the section of ventilating can not take place to block up, guarantees that air vent 11 communicates with each other with inner core 2 to guarantee that the drainage is unobstructed.

The inner core 2 can be a soft tube or a hard tube; the inner core 2 is arranged in the outer tube 1; the inner core 2 is preferably made of PVC; because inner core 2 sets up in outer tube 1, can not with organ direct contact in the use, even inner core 2 chooses for use hard pipe, can not arouse the patient discomfort because of increasing the stimulation to the organ to, have stronger holding power based on hard pipe, thereby be difficult for taking place deformation when bearing the negative pressure, and then can avoid the drainage tube to take place to block up when the work under the negative pressure, guarantee the drainage effect.

The utility model provides a drainage tube sets up the double-deck structure of inner core 2 including soft outer tube 1 and minor diameter through with the drainage tube to set up bearing structure 3 in the section of ventilating of outer tube 1, make this drainage tube can not take place to return flat under the burden during operation, avoid air vent 11 to take place to block up, thereby guarantee that the drainage is unblocked, guarantee the drainage effect.

The supporting structure 3 in this application may be a plurality of supporting blocks (not shown in the figure) staggered on the inner wall of the outer tube 1; through the supporting shoe of a plurality of crisscross settings, when avoiding outer tube 1 to be inhaled flatly, can also guarantee that air vent 11 communicates with each other with inner core 2, guarantee the drainage effect.

Further, for when avoiding 11 clogs up of air vent, reduce the lower tube degree of difficulty of drainage tube, the preferred bearing structure 3 of this application includes the spring, promptly, outer tube 1, spring and inner core 2 set gradually from outside to inside, and the spring sets up in the section department of ventilating.

The supporting structure 3 is arranged as a spring, so that the front end of the outer tube 1 is not easy to bend, and the tube lowering difficulty is reduced; meanwhile, the spring is selected as the supporting structure 3, so that the manufacturing difficulty of the drainage tube is reduced.

To facilitate the connection of the drainage connector 1 to the core 2, the drainage connector 4 in this application comprises a first connector 41 connected to the core 2, as shown in fig. 3, the core 2 preferably being plugged into the first connector 41 in this application; specifically, the outer diameter of the inner core 2 is preferably adapted to match the inner diameter of the first connector 41, so that the inner core 2 is inserted into the first connector 41, and the inner core 2 is inserted into the first connector 41.

The outer diameter of the inner core 2 is preferably slightly larger than the inner diameter of the first joint 41, so that the inner core 2 and the first joint 41 are in interference fit, and the connection strength is improved.

To facilitate connection of the drainage connector 4 to an aspirator or the like, the drainage connector 4 herein further comprises a second connector 42; in the use process, the second joint 42 of the drainage joint 4 is connected with the aspirator, and the first joint 41 is connected with the inner core 2; the suction apparatus is started and is communicated with the inner core 2 through the through hole in the drainage joint 4, so that drainage is realized.

The rear end of the outer tube 1, namely one end close to the drainage joint 4, can be directly connected with the inner core 2 and can also be connected with the drainage joint 4; for reducing the assembly degree of difficulty, the rear end of the preferred outer tube 1 of this application links to each other with drainage joint 4 to the rear end of preferred outer tube 1 is pegged graft mutually with drainage joint 4.

Specifically, the preferred external diameter of first joint 41 of this application is suitable for and cooperatees with the internal diameter of outer tube 1 to make first joint 41 insert in outer tube 1, realize that first joint 41 pegs graft mutually with outer tube 1, form in inner core 2 inserts first joint 41, simultaneously, the connection structure in first joint inserts outer tube 1 realizes that drainage connects 4 pegs graft mutually with outer tube 1 and inner core 2 simultaneously, simple structure easily assembles.

To increase the strength of the connection between the first joint 41 and the outer tube 1, as shown in fig. 3, the present application preferably

The outer side of the first joint 41 is provided with at least one annular protrusion 411; the annular protrusion 411 is suitable for being matched with the outer pipe 1, so that the first connector 41 is inserted into the outer pipe 1; simultaneously, for the assembly of being convenient for, the rear end of outer tube 1 is provided with the breach 12 of V font to reduce the assembly degree of difficulty of outer tube 1 and drainage joint 4.

Furthermore, the drainage joint 4 is preferably connected with a pressure adjusting structure 43; this pressure adjustment structure 43 is suitable for and adjusts the pressure in the inner core 2 to enlarge the application scope of drainage tube, and can adjust according to the user demand, improve patient's comfort level.

The pressure adjusting structure 43 may be an adjusting hole formed in the side wall of the drainage connector 4, and the pressure can be adjusted by covering the adjusting hole with a finger during operation and changing the area covering the adjusting hole.

For convenience of operation, the pressure adjusting structure 43 preferably includes a connecting pipe 431 communicated with the drainage connector 4, and during operation, the outer end of the connecting pipe 431 is covered by fingers, and the pressure is adjusted by changing the area covering the connecting pipe 431; the length and the diameter of the connecting pipe 431 can be set according to the size of the drainage joint 4, and the position where the pressure is adjusted is led to an easy-to-operate place by setting the connecting pipe 431, so that the difficulty in operation is reduced.

Further, it is preferable that the pressure adjusting structure 43 further includes an adjusting plate 432; the adjusting plate 432 is connected to the outer end of the connecting pipe 431; the adjusting plate 432 is provided with an adjusting hole 4321 communicated with the connecting pipe 431; in the operation process, the forefinger and the middle finger clamp the connecting pipe 431, meanwhile, the thumb covers the adjusting hole 4321, and the area covering the adjusting hole 4321 is changed by moving the position of the thumb, so that the pressure can be adjusted, and the operation difficulty is further reduced.

In order to improve the comfort level of the operation, it is further preferable that the adjusting plate 432 is an arc-shaped plate, and the center of the arc-shaped plate is recessed toward the direction close to the connecting pipe 431, so that the shape of the adjusting plate 432 is matched with the shape of the thumb of the human body, and the comfort level of the operation is improved.

Further, the pressure adjusting structure 43 preferably further includes a blocking cap 433 adapted to block the adjusting hole 4321, on one hand, when the pressure is not required to be adjusted, the blocking cap 433 is only required to block the adjusting hole 4321; on the other hand, before the drainage tube is used, the adjusting hole 4321 is blocked by the blocking cap 433, so that foreign matters such as dust are prevented from entering the drainage tube, and the drainage tube is kept clean.

Further, since the plugging cap 433 is generally small in size, in order to prevent the plugging cap 433 from being lost, it is preferable that the plugging cap 433 is connected to the adjusting plate 432 through a connecting line 434; when the adjusting hole 4321 needs to be plugged by the plugging cap 433, the connecting line 434 is bent, and the plugging cap 433 is inserted into the adjusting hole 4321.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present disclosure.

Claims (10)

1. A drainage tube is characterized by comprising an outer tube (1), an inner core (2), a supporting structure (3) and a drainage joint (4); wherein, the first and the second end of the pipe are connected with each other,

the outer pipe (1) is a soft pipe;

the front end of the outer pipe (1) is provided with a ventilation section, and the ventilation section is provided with a plurality of ventilation holes (11);

the inner core (2) is a pipe body with the diameter smaller than that of the outer pipe (1);

the inner core (2) is arranged in the outer tube (1);

the supporting structure (3) is arranged between the outer pipe (1) and the inner core (2), and the supporting structure (3) is arranged in the ventilation section;

the drainage joint (4) is connected to the rear end of the inner core (2).

2. Drainage tube according to claim 1, characterized in that the support structure (3) comprises a spring.

3. The drain tube according to claim 1, characterized in that the drain connector (4) comprises a first connector (41) connected to the inner core (2), the inner core (2) being plugged with the first connector (41); the outer diameter of the inner core (2) is suitable for being matched with the inner diameter of the first joint (41), so that the inner core (2) is inserted into the first joint (41) to realize the insertion connection of the inner core (2) and the first joint (41).

4. A drain tube according to claim 3, characterized in that the outer diameter of the first connector (41) is adapted to fit the inner diameter of the outer tube (1) so that the first connector (41) is inserted into the outer tube (1) for plugging the first connector (41) with the outer tube (1).

5. The drain tube according to claim 4, characterized in that the outside of the first adapter (41) is provided with at least one annular projection (411); the annular protrusion (411) is suitable for being matched with the outer pipe (1) to realize the insertion connection of the first connector (41) and the outer pipe (1); the rear end of the outer tube (1) is provided with a V-shaped notch (12).

6. The drainage tube according to any of claims 1 to 5, characterized in that a pressure regulating structure (43) is connected to the drainage connector (4); the pressure regulating structure (43) is adapted to regulate the pressure within the inner core (2).

7. The drain tube according to claim 6, characterized in that said pressure regulating structure (43) comprises a connection tube (431) communicating with said drain fitting (4).

8. The draft tube according to claim 7, wherein said pressure regulating structure (43) further comprises a regulating plate (432); the adjusting plate (432) is connected to the outer end of the connecting pipe (431); the adjusting plate (432) is provided with an adjusting hole (4321) communicated with the connecting pipe (431).

9. The draft tube according to claim 8, wherein the adjusting plate (432) is an arc-shaped plate, and the center of the arc-shaped plate is depressed in a direction approaching the connection pipe (431).

10. The drainage tube according to claim 9, characterized in that said pressure regulating structure (43) further comprises a plugging cap (433) adapted to plug said regulating hole (4321); the blocking cap (433) is connected with the adjusting plate (432) through a connecting wire (434).

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