CN221673136U - Drainage tube and drainage device - Google Patents

Abstract

The application relates to the field of medical equipment, and particularly provides a drainage tube and drainage equipment, which comprises a main tube, wherein the main tube is provided with a drainage section for being inserted into a thoracic cavity, a plurality of side holes are formed in the drainage section at intervals, and the main tube is provided with an internal end part and an external end part; the air bags are positioned in the main pipe; the air charging pipe extends into the main pipe and is communicated with the plurality of air bags and used for charging the plurality of air bags; the diameter of the main pipe is smaller than the maximum diameter of the inflated air bags, and when the air bags are in an inflated state, the main pipe is used for blocking the side holes in a one-to-one correspondence mode. The sealing of a plurality of side holes corresponding to the air bags in one-to-one mode through a plurality of inflatable states achieves the effect that when the drainage tube is pulled out of the chest of a patient, positive pressure air in the environment is prevented from entering the negative pressure chest through the side holes which come out of the side holes, and the risk of pneumothorax caused when the drainage tube is pulled out of the chest of the patient is greatly reduced.

Description

Drainage tube and drainage device

Technical Field

The present application relates to the field of medical equipment, and in particular to a drainage tube and drainage equipment.

Background Art

After thoracic surgery, a drainage tube needs to be placed in the chest cavity to drain pleural effusion and air to relieve the patient's discomfort and prevent further infection.

The structure of the existing drainage tube is often provided with multiple side holes on the side wall of the drainage tube to ensure smooth drainage. Although this allows smooth drainage of the drainage tube, the side holes are connected to each other. When the side hole that comes out first is connected to the ambient air during removal, the positive pressure air in the environment will enter the negative pressure chest cavity through the side hole, thereby causing pneumothorax. At present, in order to avoid the above phenomenon, when removing the drainage tube, the patient is often required to cooperate with inhalation and holding the breath, and the drainage tube is removed as quickly as possible to reduce the amount of gas entering the chest cavity. However, if the drainage tube is removed quickly, it will cause scratches on the chest wall tissue and cause bleeding, and the patient often cannot cooperate well with inhalation and holding the breath. Therefore, the structure of the existing drainage tube leads to the risk of pneumothorax during the removal of the drainage tube.

Therefore, the prior art has defects and shortcomings and needs further improvement and development.

Utility Model Content

In view of the deficiencies in the prior art, the present application aims to provide a drainage tube and a drainage device, aiming to solve the problem that the structure of the drainage tube in the prior art easily leads to pneumothorax during the removal of the drainage tube.

The technical solution adopted by the present application to solve the technical problem is as follows: A drainage tube for chest drainage, comprising:

A main pipe, wherein the main pipe is provided with a drainage section for inserting into the chest cavity, the drainage section is provided with a plurality of side holes at intervals, and the main pipe has an in-vivo end portion and an out-vivo end portion;

A plurality of air bags, wherein the plurality of air bags are located in the main pipe;

An inflation tube, the inflation tube extends into the main tube and is connected to the plurality of air bags, and is used to inflate the plurality of air bags;

Wherein, the diameter of the main pipe is smaller than the maximum diameter of the airbag after inflation, and when a plurality of the airbags are in an inflated state, they are used to block a plurality of the side holes in a one-to-one correspondence.

Optionally,

A plurality of the air bags are connected in series to the inflation tube;

The areas where the airbags are arranged are the areas between the side holes and the areas between the side holes and the inner end of the body.

Optionally, the drainage tube further comprises a first side tube disposed at the end portion outside the body, and the first side tube is connected to the main tube; the inflation tube extends from the first side tube into the main tube and seals the first side tube.

Optionally, the drainage tube further comprises a first annular sac arranged in the main pipe, and the first annular sac is located between the drainage section and the end portion outside the body; the diameter of the main pipe is smaller than the diameter of the first annular sac when it is in an inflated state, and the first annular sac is used to prevent the main pipe from displacing in a direction away from the chest cavity.

Optionally, the drainage tube further includes a second annular sac, which is disposed between the first annular sac and the end portion outside the body, and the diameter of the main tube is smaller than the diameter of the second annular sac when inflated, and the second annular sac is used to prevent the main tube from displacing in a direction entering the chest cavity.

Optionally, the drainage tube further comprises a ring-shaped balloon trachea, and the second ring-shaped balloon and the first ring-shaped balloon are connected in series to the ring-shaped balloon trachea.

Optionally, the drainage tube further comprises a second side tube at the end outside the body, and the second side tube is connected to the main tube; the annular balloon trachea extends from the second side tube into the main tube and seals the second side tube.

Optionally, the first annular bag and the second annular bag are both provided with an inflation portion and a drainage hole, and the inflation tube passes through the drainage hole.

Optionally, a safety limit line is provided on the main pipe corresponding to the second ring bag.

Another technical solution adopted by the present application to solve the technical problem is as follows: a drainage device, comprising the drainage tube as described above;

a drainage bag, the drainage bag being in communication with the external end portion and being used for receiving the accumulated gas and fluid drained from the chest cavity;

A pressure limiting valve is provided between the external end portion and the drainage bag, and is used to balance the pressure difference between the chest cavity and the drainage bag.

Beneficial effects:

The present application provides a drainage tube and a drainage device, wherein the drainage tube is provided with a main tube, a plurality of air bags and an inflation tube, wherein the main tube is provided with a plurality of side holes, and the inflation tube is used to inflate the plurality of air bags, and the plurality of side holes are blocked one by one by the air bags in an inflated state, thereby achieving isolation between the side holes and the side holes, so that when the drainage tube is removed from the patient's chest cavity, the side holes will not be connected to each other, causing the positive-pressure air in the environment to enter the negative-pressure chest cavity through the side holes that come out first, thereby avoiding the problem of pneumothorax and greatly reducing the risk of pneumothorax when the drainage tube is removed from the patient's chest cavity.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the drainage tube provided in the present application;

FIG2 is a cross-sectional schematic diagram of the drainage tube provided in the present application;

FIG3 is another schematic diagram of the three-dimensional structure of the drainage tube provided in the present application;

FIG4 is another cross-sectional schematic diagram of the drainage tube provided in the present application;

FIG5 is another schematic diagram of the three-dimensional structure of the drainage tube provided in the present application;

FIG6 is another cross-sectional schematic diagram of the drainage tube provided in the present application;

FIG7 is another cross-sectional schematic diagram of the drainage tube provided in the present application;

Description of reference numerals:

10. Drainage tube; 11. Main tube; 12. Air bag; 13. Inflatable tube; 14. First side tube; 15. First ring bag; 16. Second ring bag; 17. Ring bag air tube; 18. Second side tube; 19. Safety limit line; 111. Drainage section; 112. Side hole; 113. Internal end; 114. External end; 151. Inflatable part; 152. Drainage hole.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

Please refer to Figures 1 and 2. In the first embodiment of the present application, a drainage tube 10 is proposed, which includes a main tube 11, a plurality of air bags 12 and an inflation tube 13; the main tube 11 is provided with a drainage section 111 for inserting into the chest cavity, and a plurality of side holes 112 are arranged at intervals on the drainage section 111, and the accumulated gas and fluid in the chest cavity enter the main tube 11 through the side holes 112; the plurality of side holes 112 can not only improve the drainage efficiency, but also prevent the phenomenon that some side holes 112 are blocked by tissues and cannot be drained; the main tube 11 has an internal end portion 113 and an external end portion 114, and the drainage section 111 is arranged in the body The inner end portion 113, the inner end portion 113 and the drainage section 111 are used to be inserted into the chest cavity, and the outer end portion 114 is used to be arranged outside the body to facilitate the connection with other structures of the drainage device; the plurality of airbags 12 are all located in the main pipe 11, the inflation tube 13 extends into the main pipe 11, and the plurality of airbags 12 are connected to the inflation tube 13, and the inflation tube 13 is used to inflate or deflate the plurality of airbags 12; when it is necessary to pull out the drainage tube 10 to clean the tissue blocking the side hole 112, the inflation tube 13 first inflates the airbag 12, and then pulls out the drainage tube 10, and after cleaning, reinserts it into the patient's chest cavity, and the airbag 12 passes through The inflation tube 13 is deflated; wherein, the diameter of the main tube 11 is smaller than the maximum diameter of the airbag 12 after inflation, and when the plurality of airbags 12 are in the inflated state, the plurality of airbags 12 form an interference fit with the main tube 11, and then the plurality of airbags 12 can block the plurality of side holes 112 corresponding to each other; specifically, when it is necessary to remove the drainage tube 10 inserted into the patient's chest cavity, the plurality of airbags 12 are inflated through the inflation tube 13 first, and the airbags 12 are inflated. After the inflation is completed, the valve is closed, and at this time, the airbag 12 is inflated; the inflated airbag 12 blocks the plurality of side holes 112 corresponding to each other one by one; it can be understood that When the drainage tube 10 is in use, the air bag 12 in the main tube 11 is deflated and does not affect the normal drainage of the drainage tube 10. When the drainage tube 10 needs to be removed, several air bags 12 in the inflated state will block several corresponding side holes 112 one by one, and the side holes 112 are no longer connected. At this time, when the drainage tube 10 is removed, although the side hole 112 that comes out first is connected to the ambient air, it is not connected to the adjacent side hole 112, which will cause the positive pressure air in the environment to enter the negative pressure chest cavity through the side hole 112, thereby causing pneumothorax, which greatly reduces the risk of causing pneumothorax when the drainage tube 10 is removed from the patient's chest cavity.

Please continue to refer to Figures 1 to 2. In some embodiments, several of the airbags 12 are connected in series to the inflation tube 13, and the inflation tube 13 extends into the main tube 11. After the airbags 12 are inflated, they will not squeeze the inflation tube 13. Compared with the parallel arrangement, the series arrangement can prevent the airbags 12 from squeezing the inflation tube 13 after being inflated, resulting in the phenomenon that other airbags 12 cannot be inflated normally; the arrangement area of several of the airbags 12 is the area between several of the side holes 112, and the area between the side holes 112 and the inner end portion 113 of the body; specifically, the airbags 12 are arranged between the side holes 112 and the side holes 112. When the airbags 12 are inflated, the main tube 11 between adjacent side holes 112 can be blocked. At this time When the drainage tube 10 is removed, although the side hole 112 that comes out first is connected to the ambient air, it is not connected to the adjacent side hole 112, which will cause the positive-pressure air in the environment to enter through the side hole 112, enter the main pipe 11, and then enter the negative-pressure chest cavity from other side holes 112; the area between the side hole 112 and the internal end portion 113 is also provided with an airbag 12, and similarly, it is used to prevent the positive-pressure air in the environment from entering through the side hole 112, entering the main pipe 11, and then entering the negative-pressure chest cavity from the internal end portion 113 even though the side hole 112 is connected to the ambient air; preferably, the internal end portion 113 is provided as a sealed end, and in this case, the area between the side hole 112 and the internal end portion 113 does not need to be provided with an airbag 12.

Please refer to Figures 3 and 4. In some embodiments, the drainage tube 10 also includes a first side tube 14 arranged at the external end 114, and the first side tube 14 is connected to the main tube 11, and the inflation tube 13 extends from the first side tube 14 into the main tube 11, and one end of the inflation tube 13 is reserved to the outside of the chest cavity through the first side tube 14; the diameter at the mouth of the first side tube 14 is smaller than the diameter of the inflation tube 13, and the inflation tube 13 can seal the first side tube 14 at the mouth of the first side tube 14 to prevent air from entering the main tube 11 from the mouth of the first side tube 14.

Please refer to Figures 5 to 7. In some embodiments, the drainage tube 10 further includes a first annular capsule 15 disposed in the main tube 11, and the first annular capsule 15 is located between the drainage section 111 and the external end 114, and the first annular capsule 15 is disposed close to the drainage section 111; the diameter of the main tube 11 is smaller than the diameter of the first annular capsule 15 when it is inflated, and the first annular capsule 15 forms an interference fit with the main tube 11, thereby preventing the main tube 11 from moving in a direction away from the chest cavity; in clinical medical treatment, when the drainage tube 10 is inserted into the patient's chest cavity, It is often necessary to use medical tape to adhere the drainage tube 10 to the patient's skin to prevent the drainage tube 10 from moving in a direction away from the chest cavity. However, over time and due to factors such as patient sweating, the medical tape may become loose or fall off. Specifically, the present application provides a first annular bag 15 between the drainage section 111 and the external end 114. After the drainage section 111 is inserted into the patient's chest cavity, the first annular bag 15 is inflated. The inflated first annular bag 15 forms an interference fit with the main tube 11, thereby limiting the drainage tube 10 and preventing the main tube 11 from moving in a direction away from the chest cavity.

Please continue to refer to Figures 5 to 7. In some embodiments, the drainage tube 10 further includes a second annular sac 16, which is disposed between the first annular sac 15 and the external end 114. The diameter of the main tube 11 is smaller than the diameter of the second annular sac 16 when it is inflated. The second annular sac 16 forms an interference fit with the main tube 11, thereby preventing the main tube 11 from moving in the direction of entering the chest cavity. In clinical medicine, after the drainage tube 10 is inserted into the patient's chest cavity, it is often necessary to use medical tape to bond the drainage tube 10. The medical tape is placed on the patient's skin to prevent the drainage tube 10 from shifting in the direction of entering the chest cavity and scratching the patient's organs. However, over time and due to factors such as patient sweating, the medical tape will loosen or fall off. Specifically, the present application provides a first annular bag 15 between the drainage section 111 and the external end 114. When the drainage section 111 is inserted into the patient's chest cavity, the second annular bag 16 is inflated. The first annular bag 15 in the inflated state forms an interference fit with the main pipe 11, which limits the drainage tube 10 and prevents the main pipe 11 from shifting in the direction of entering the chest cavity.

Please continue to refer to Figures 5 to 7. In some embodiments, the drainage tube 10 also includes a ring balloon air tube 17, which is used to inflate the second ring balloon 16 and the first ring balloon 15. The ring balloon air tube 17 extends into the main pipe 11, and the second ring balloon 16 and the first ring balloon 15 are connected in series to the ring balloon air tube 17. The second ring balloon 16 will not squeeze the inflation tube 13 after being inflated. Compared with the parallel setting, the series setting can prevent the second ring balloon 16 from squeezing the inflation tube 13 after being inflated, resulting in the first ring balloon 15 being unable to be inflated normally.

Please continue to refer to Figures 5 to 7. In some embodiments, the drainage tube 10 also includes a second side tube 18 at the external end 114, and the second side tube 18 is connected to the main tube 11; the annular balloon trachea 17 extends from the second side tube 18 into the main tube 11, and one end of the annular balloon trachea 17 is reserved to the outside of the chest cavity through the second side tube 18; the diameter at the mouth of the second side tube 18 is smaller than the diameter of the annular balloon trachea 17, and the annular balloon trachea 17 can seal the second side tube 18 at the mouth of the second side tube 18 to prevent air from entering the main tube 11 from the mouth of the second side tube 18.

Please continue to refer to Figures 5 to 7. In some embodiments, the first annular bag 15 and the second annular bag 16 are both provided with an inflation portion 151 and a drainage hole 152. The inflation portion 151 and the drainage hole 152 form a circular ring structure, the inflation portion 151 is an outer ring, and the drainage hole 152 is an inner ring. After the inflation portion 151 is inflated, an interference fit is formed with the inflation tube 13 of the main pipe 11 passing through the drainage hole 152. When the first annular bag 15 and the second annular bag 16 are in an inflated state, the inflation tube 13 will not be squeezed, and the inflation of the airbag 12 will not be affected. A safety limit line 19 is provided at the main pipe 11 corresponding to the second annular bag 16. The safety limit line 19 is used to remind medical staff that the drainage section 111 and the first annular bag 15 and the second annular bag 16 have entered the patient's chest cavity, and no more excess main pipe 11 can be inserted into the patient's chest cavity.

Specifically, when the drainage tube 10 is inserted into the patient's body, the safety limit line 19 can prompt the medical staff that the drainage section 111 and the first and second annular bags 15 and 16 have entered the patient's chest cavity; when the drainage tube 10 is inserted into place, the first and second annular bags 15 and 16 are inflated through the annular bag trachea 17, and the first and second annular bags 15 and 16 in the inflated state limit the main pipe 11 to prevent the main pipe 11 from displacement; when the drainage tube 10 needs to be removed, the air bag 12 is first inflated through the inflation tube 13, the adjacent side holes 112 are blocked, and the side holes 112 and the end portion 113 in the body are blocked, and then, the first and second annular bags 15 and 16 are deflated through the annular bag trachea 17, and the drainage tube 10 is removed from the patient's chest cavity.

In the second embodiment of the present application, a drainage device is proposed, which includes the drainage tube 10 as described above, as well as a drainage bag and a pressure-limiting valve; the drainage bag is connected to the external end 114, and is used to accommodate the accumulated gas and fluid drained from the chest cavity, and the pressure-limiting valve is arranged between the external end 114 and the drainage bag, and is used to balance the pressure difference between the chest cavity and the drainage bag; it can be seen that the drainage device is not easy to be displaced when in use, and can balance the pressure difference between the chest cavity and the drainage bag, and no additional air will enter the chest cavity. When the device is removed, the risk of causing pneumothorax is significantly reduced.

In summary, the present application provides a drainage tube and a drainage device, wherein the drainage tube includes a main pipe, the main pipe is provided with a drainage section for inserting into the chest cavity, a plurality of side holes are arranged at intervals on the drainage section, the main pipe has an internal end portion and an external end portion; a plurality of airbags, wherein the plurality of airbags are all located in the main pipe; an inflation tube, the inflation tube extends into the main pipe and is connected to the plurality of airbags, and is used to inflate the plurality of airbags; wherein the diameter of the main pipe is smaller than the maximum diameter of the airbag after inflation, and when the plurality of airbags are in an inflated state, the main pipe is used to block the plurality of side holes one by one. The present application provides a drainage tube and a drainage device, wherein the drainage tube is provided with a main tube, a plurality of air bags and an inflation tube, wherein the main tube is provided with a plurality of side holes, and the inflation tube is used to inflate the plurality of air bags, and the plurality of side holes are blocked one by one by the air bags in an inflated state, thereby achieving isolation between the side holes and the side holes, so that when the drainage tube is removed from the patient's chest cavity, the side holes will not be connected to each other, causing the positive-pressure air in the environment to enter the negative-pressure chest cavity through the side holes that come out first, thereby avoiding the problem of pneumothorax and greatly reducing the risk of pneumothorax when the drainage tube is removed from the patient's chest cavity.

It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims (10)

1. A drainage tube for thoracic drainage, comprising:

the main tube is provided with a drainage section for being inserted into the thoracic cavity, a plurality of side holes are formed in the drainage section at intervals, and the main tube is provided with an inner end part and an outer end part;

the air bags are positioned in the main pipe;

The inflation tube extends into the main tube and is communicated with the plurality of air bags and is used for inflating the plurality of air bags;

The diameter of the main pipe is smaller than the maximum diameter of the inflated air bags, and when a plurality of air bags are in an inflated state, the main pipe is used for blocking a plurality of side holes in one-to-one correspondence.

2. The drainage tube of claim 1 wherein,

The air bags are connected in series on the inflation tube;

The arrangement areas of the plurality of air bags are areas among the plurality of side holes and areas among the side holes and the inner end part of the body.

3. The drain tube of claim 1, further comprising a first side tube disposed at the extracorporeal end, and the first side tube is in communication with a main tube; the inflation tube extends from the first side tube into the main tube and seals the first side tube.

4. The drainage tube of claim 1 further comprising a first cuff disposed within the main tube, the first cuff being located between the drainage segment and the extracorporeal end; the diameter of the main pipe is smaller than that of the first annular sac when the first annular sac is in an inflated state, and the first annular sac is used for preventing the main pipe from being displaced in a direction of separating from the chest.

5. The drain tube of claim 4, further comprising a second cuff disposed between the first cuff and the outer end, the main tube having a diameter smaller than a diameter of the second cuff when in an inflated state, the second cuff for preventing displacement of the main tube in a direction into the chest cavity.

6. The drain tube of claim 5, further comprising an annular cuff trachea, the second annular cuff and the first annular cuff being connected in series on the annular cuff trachea.

7. The drain tube of claim 6, further comprising a second side tube at the extracorporeal end, and the second side tube is in communication with a main tube; the annular sac trachea extends into the main tube from the second side tube and seals the second side tube.

8. The drainage tube of claim 7 wherein the first and second cuffs are each provided with an inflation portion and a drainage aperture, the inflation tube passing through the drainage aperture.

9. The drainage tube of any one of claims 1 to 8, wherein a safety limit line is provided at a position of the main tube corresponding to the second annular sac.

10. A drainage device, comprising: the drain tube according to any one of claims 1-9;

The drainage bag is communicated with the external end part and is used for accommodating the accumulated air and the accumulated liquid which flow out of the chest cavity through drainage;

the pressure limiting valve is arranged between the external end part and the drainage bag and used for balancing the pressure difference between the chest cavity and the drainage bag.