CN217772963U

CN217772963U - Anti-backflow drainage tube

Info

Publication number: CN217772963U
Application number: CN202220792860.3U
Authority: CN
Inventors: 顾硕
Original assignee: Hainan Women And Children Medical Center
Current assignee: Hainan Women And Children Medical Center
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-11-11
Anticipated expiration: 2032-04-07

Abstract

The application relates to the field of clinical surgery and discloses an anti-backflow drainage tube. The anti-backflow drainage tube is configured to have at least one hole at one end and at least two cracks at the other end, when liquid flows into one side of the drainage tube with the hole and the pressure of the liquid in the drainage tube is higher than the pressure of the liquid outside the drainage tube, the side of the drainage tube with the cracks is expanded, the cracks are opened, and the liquid can flow from the side of the drainage tube with the hole to the side of the drainage tube with the cracks; when the liquid pressure in the drainage tube is not higher than the liquid pressure outside the drainage tube, one side of the drainage tube with the gap is tightly closed, and the external liquid positioned on one side of the drainage tube with the gap can not enter the drainage tube, so that the liquid is prevented from flowing to one side of the drainage tube with the hole from one side of the drainage tube with the gap, the backflow resistance effect is achieved, and the liquid backflow is prevented from causing damage to a human body.

Description

Anti-backflow drainage tube

Technical Field

The application relates to the field of clinical surgery, in particular to a technology for preventing liquid in a drainage tube from flowing back.

Background

The drainage tube is a medical appliance for clinical surgery drainage, which guides pus, blood and liquid accumulated in human tissues or body cavities to the outside of the body, prevents postoperative infection and promotes wound healing. The clinical surgical drainage tubes have various types, some are used for catheterization, and some are used for wounds, thoracic cavities, brain cavities, gastrointestinal tracts, biliary tracts and the like. However, in the actual operation process, the body fluid to be guided out of the drainage tube may flow back into the human body again, which affects the treatment effect and wound healing, and some anti-reflux devices on the market at present have larger volume or complicated structures, which increases the medical cost and burden.

Disclosure of Invention

An object of this application is to provide an anti drainage tube that backflows, and this anti drainage tube simple structure that backflows can effectively prevent the interior liquid reflux of drainage tube, improves treatment effeciency.

An anti-reflux drainage tube configured at one end with at least one hole and at the other end with at least two slits;

when liquid flows into the side of the drainage tube with the hole, and the pressure of the liquid in the drainage tube is higher than the pressure of the liquid outside the drainage tube, the side of the drainage tube with the gap is expanded, the gap is opened, and the liquid can flow from the side of the drainage tube with the hole to the side of the drainage tube with the gap;

when the pressure of the liquid in the drainage tube is not higher than the pressure of the liquid outside the drainage tube, the side with the gap of the drainage tube is tightly closed to prevent the liquid from flowing from the side with the gap of the drainage tube to the side with the hole of the drainage tube.

In a preferred embodiment, the holes of the drainage tube are uniformly distributed along the axial direction of the drainage tube.

In a preferred embodiment, the slit of the drain tube is parallel to the axial direction of the drain tube.

In a preferred embodiment, the number of the cracks is 2-8.

In a preferred embodiment, the length of the slit is 5mm to 50mm.

In a preferred embodiment, the slits are uniformly distributed along the circumferential direction of the draft tube.

In a preferred embodiment, the length of the drainage tube is 2cm to 50cm.

In a preferred embodiment, the outer diameter of the drainage tube is 2mm-5mm.

In a preferred embodiment, the drainage tube is vertical when being wrapped by the outer sheath, and the two ends of the drainage tube naturally return to a J-shaped curve after leaving the outer sheath.

Compared with the prior art, the implementation mode of the application has the main differences and the effects that:

the anti-backflow drainage tube is simple in structure, only one end of the drainage tube is required to be cut into the cracks, and when the liquid pressure in the drainage tube is not higher than the liquid pressure outside the drainage tube, the side, with the cracks, of the drainage tube is tightly closed. The design can be widely applied, for example, the drainage tube is applied to the drainage tube for guiding the hydrocephalus of the fetus, when the hydrocephalus of the fetus exists, the hydrocephalus of the brain of the fetus can be guided into the amniotic fluid in the uterus of the mother, and because the amniotic fluid contains a lot of impurities, if the hydrocephalus returns to the brain of the fetus, adverse effects can be caused to the fetus.

The present specification describes a number of technical features distributed throughout the various technical aspects, and if all possible combinations of technical features (i.e. technical aspects) of the present specification are listed, the description is made excessively long. In order to avoid this problem, the respective technical features disclosed in the above summary of the invention of the present application, the respective technical features disclosed in the following embodiments and examples, and the respective technical features disclosed in the drawings may be freely combined with each other to constitute various new technical solutions (which are considered to have been described in the present specification) unless such a combination of the technical features is technically infeasible. For example, in one example, feature a + B + C is disclosed, in another example, feature a + B + D + E is disclosed, and features C and D are equivalent technical means that serve the same purpose, technically only one feature is used, but not both, and feature E may be technically combined with feature C, then the solution of a + B + C + D should not be considered as already described because the technology is not feasible, and the solution of a + B + C + E should be considered as already described.

Drawings

FIG. 1 is a schematic view of the anti-reflux catheter in a relaxed state after it exits the sheath;

FIG. 2 is a schematic view of the structure of the anti-reflux drain in a squeezed state in the sheath.

Detailed Description

In the following description, numerous technical details are set forth in order to provide a better understanding of the present application. However, it will be understood by those of ordinary skill in the art that the claimed embodiments may be practiced without these specific details and with various changes and modifications based on the following embodiments.

A first embodiment of the present application relates to an anti-reflux drain, as shown in fig. 1, comprising: drainage tube 1, hole 2, slit 3, sheath (not shown in the figure).

The length of the drainage tube 1 is 2cm to 50cm, and the outer diameter is 2mm to 5mm.

One end of the drainage tube 1 is configured to be provided with at least one hole 2, and the number of the holes 2 can be increased according to the operation requirement and the length of the drainage tube; the holes 2 are evenly distributed along the axial direction of the drainage tube 1.

The other end of the drainage tube 1 is configured to have 2 to 8 slits 3, the number of the slits 3 can be increased according to the operation requirement and the length of the drainage tube; the slit 3 is parallel to the axial direction of the drainage tube 1 and is uniformly distributed along the circumferential direction of the drainage tube 1; the length of the slit 3 is 5mm to 50mm.

The width of the slit 3 is negligible, and is only a slit, and the slit 3 is obtained by cutting with a blade or any other sharp instrument.

When the drainage tube is required to be introduced into a human body in a straight state, the outer sheath can be wrapped outside the drainage tube, and the straight state is formed under the pressure extrusion of the outer sheath, as shown in FIG. 2; after exiting the sheath, the two ends of the drainage tube naturally return to the J-shaped curve shape, as shown in FIG. 1.

In this embodiment, the side of the drainage tube 1 having the hole 2 is filled with liquid, when the pressure of the liquid in the drainage tube 1 is higher than the pressure of the liquid outside the drainage tube 1, the side of the drainage tube 1 having the slit 3 is expanded, the slit 3 is opened, and the liquid can flow from the side of the drainage tube 1 having the hole 2 to the side of the drainage tube 1 having the slit 3;

when the liquid pressure in the drainage tube 1 is not higher than the liquid pressure outside the drainage tube 1, the side of the drainage tube 1 having the slit 3 is tightly closed, and the external liquid at the side of the drainage tube 1 having the slit 3 does not enter the drainage tube 1, i.e. the liquid is prevented from flowing from the side of the drainage tube 1 having the slit 3 to the side of the drainage tube 1 having the hole 2.

The position of the hole is not limited at the left end of the drainage tube, but also can be at the right end, and the hole and the slit are respectively positioned at the two ends of the drainage tube; the position of the slit is not limited at the right end of the drainage tube, and can be at the left end as long as the slit and the hole are respectively positioned at the two ends of the drainage tube.

It is noted that, in the present patent application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In the present patent application, if it is mentioned that a certain action is executed according to a certain element, it means that the action is executed according to at least the element, and two cases are included: performing the action based only on the element, and performing the action based on the element and other elements. The expression of a plurality of, a plurality of and the like includes 2, 2 and more than 2, more than 2 and more than 2.

All documents mentioned in this application are to be considered as being incorporated in their entirety into the disclosure of this application so as to be subject to modification as necessary. Further, it is understood that various changes or modifications may be made to the present application by those skilled in the art after reading the above disclosure of the present application, and such equivalents are also within the scope of the present application as claimed.

Claims

1. An anti-reflux drain tube, wherein one end of the drain tube is configured with at least one hole and the other end is configured with at least two slits;

2. An anti-reflux draft tube according to claim 1 wherein the holes of said draft tube are uniformly distributed along the axial direction of said draft tube.

3. An anti-reflux drain tube according to claim 1, wherein said slit of said drain tube is parallel to the axial direction of said drain tube.

4. The anti-reflux drain tube of claim 1, wherein said number of said slits is 2-8.

5. An anti-reflux drainage tube according to claim 1, wherein said slit has a length of 5mm to 50mm.

6. An anti-reflux draft tube according to claim 1, wherein said slits are evenly distributed along a circumferential direction of said draft tube.

7. An anti-reflux draft tube according to claim 1, wherein the length of said draft tube is 2cm to 50cm.

8. An anti-reflux draft tube according to claim 1, wherein an outer diameter of said draft tube is 2mm to 5mm.

9. The anti-reflux drainage tube of claim 1, wherein said tube is substantially vertical when wrapped by said sheath, and wherein said tube ends return to a "J" shape after exiting said sheath.