Leakage-proof drainage tube

Abstract

The utility model relates to a leak-proof drainage tube which comprises an inner sleeve and an outer sleeve, the inner sleeve comprises an inner sleeve body inner section and an inner sleeve extending section, and the inner sleeve body inner section is inserted into the body of a patient. The leakage-proof drainage tube has the advantages that the inner sleeve with one end inserted into the body of a patient and the outer sleeve sleeved outside the inner sleeve are arranged, so that the end, connected with the patient, of the leakage-proof drainage tube forms a double-layer structure, and liquid leaked out of the inner sleeve flows downwards into the outer sleeve from an annular gap between the inner sleeve and the outer sleeve; the leakage of the liquid is effectively avoided; meanwhile, the size of the annular gap is gradually reduced, so that the leaked liquid collecting effect is improved; the pasting ring is arranged on the outer side of the top end of the outer sleeve, the end of the outer sleeve is fixed to the body surface of the patient through the pasting ring, use is convenient, the leaked liquid collecting effect of the outer sleeve is further improved, and the clinical dressing change frequency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular comprises a leak-proof drainage tube. Background Art

[0002] One end of an ordinary drainage tube is directly inserted into the chest and abdomen of the patient, and the other end can be connected to other external devices such as a drainage tube outside the body. It is used to drain pus, blood, and liquid accumulated in the body to the outside of the body through the action of pressure such as internal pressure, gravity, or negative pressure suction. However, the drainage tubes in the prior art often have the problem of leakage at the drainage tube mouth during use, which can easily lead to poor hygiene of the patient's injured area and inconvenience for medical staff to manage. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the prior art and provide a leak-proof drainage tube.

[0004] The leakproof drainage tube comprises: an inner sleeve and an outer sleeve, wherein the inner sleeve comprises an inner sleeve inner section and an inner sleeve extension section, and the inner sleeve inner section is inserted into the patient's body;

[0005] The inner diameter of the top end of the outer sleeve is larger than the opening size of the drainage tube on the patient's body surface, and an adhesive ring is provided on the outer side of the top end of the outer sleeve, which is adhered to the patient's body surface; the inner diameter of the outer sleeve is larger than the outer diameter of the inner sleeve extension section, and the inner sleeve extension section is inserted into the outer sleeve. There is an annular gap between the outer wall of the inner sleeve extension section and the inner wall of the outer sleeve, forming a flow space for the leaked liquid, and several inner and outer tube connecting parts are arranged at intervals in the annular gap for fixedly connecting the inner sleeve and the outer sleeve.

[0006] Preferably, the outer sleeve comprises an upper outer sleeve section and a lower outer sleeve section, the upper outer sleeve section is trumpet-shaped, and the inner diameter of the connecting end of the upper outer sleeve section and the adhesive ring is larger than the inner diameter of the connecting end of the upper outer sleeve section and the lower outer sleeve section.

[0007] Preferably, the outer diameter of the bottom end of the inner sleeve extension section is smaller than the inner diameter of the lower section of the outer sleeve, and the bottom end of the inner sleeve extension section extends into the lower section of the outer sleeve.

[0008] Preferably, the inner and outer tube connecting portion is arranged at the bottom end of the inner segment of the inner sleeve body, and the inner and outer tube connecting portion is arranged between the outer wall of the inner segment of the inner sleeve body and the inner wall of the lower segment of the outer sleeve.

[0009] Preferably, the size of the inner sleeve extension section away from one end of the inner sleeve body section is smaller than the size of the inner sleeve body section, and the size of the annular gap between the outer wall of the inner sleeve extension section and the inner wall of the outer sleeve gradually decreases.

[0010] The beneficial effects of the utility model are:

[0011] 1) The utility model provides an inner sleeve with one end inserted into the patient's body and an outer sleeve sleeved outside the inner sleeve, so that the end of the leak-proof drainage tube connected to the patient forms a double-layer structure, and the liquid leaked from the outside of the inner sleeve flows downward into the outer sleeve in the annular gap between the inner sleeve and the outer sleeve, effectively preventing the leakage of the liquid; at the same time, by gradually reducing the size of the annular gap, the effect of collecting the leaked liquid is improved.

[0012] 2) The utility model is provided with an adhesive ring on the outer side of the top of the outer sleeve, and the end of the outer sleeve is fixed to the patient's body surface through the adhesive ring, which is easy to use and further improves the effect of the outer sleeve in collecting leaked fluid, reducing the number of clinical dressing changes.

[0013] 3) In the annular gap between the outer wall of the inner sleeve and the inner wall of the outer sleeve of the utility model, an inner and outer tube connecting part is arranged at intervals, so that the inner sleeve and the outer sleeve are fixed. When in use, manual assembly is not required but the device can be put into use directly, which simplifies the use steps and improves hygiene. At the same time, the inner and outer tube connecting parts arranged at intervals will not affect the collection of leaked liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the leak-proof drainage tube;

[0015] Figure 2 A cross-sectional view showing the location of the outer tube connection portion in the leak-proof drainage tube;

[0016] Figure 3 A cross-sectional view of the leak-proof drainage tube without the connection between the inner and outer tubes;

[0017] Figure 4 It is a schematic diagram of the inner sleeve and the outer sleeve being connected through the inner and outer pipe connecting part.

[0018] Explanation of the reference numerals: inner sleeve 1, adhesive ring 2, outer sleeve upper section 3, inner sleeve lower section 4, inner and outer tube connecting portion 5, inner sleeve inner section 11, inner sleeve protruding section 12. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the embodiments. The description of the following embodiments is only used to help understand the utility model. It should be pointed out that for ordinary people in this technical field, the utility model can also be modified in some ways without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0020] As an example, Figures 1 to 4 As shown, the leak-proof drainage tube comprises: an inner sleeve 1 and an outer sleeve, wherein the inner sleeve 1 comprises an inner sleeve body section 11 and an inner sleeve extension section 12, and the inner sleeve body section 11 is inserted into the patient's body;

[0021] like Figure 1 As shown, the outer sleeve includes an outer sleeve upper section 3 and an outer sleeve lower section 4. The outer sleeve upper section 3 is trumpet-shaped, and the inner diameter of the top of the outer sleeve upper section 3 is larger than the inner diameter of the connecting end of the outer sleeve upper section 3 and the outer sleeve lower section 4. The inner diameter of the top of the outer sleeve upper section 3 is larger than the opening size of the patient's body surface drainage tube. An adhesive ring 2 is provided on the outer side of the top of the outer sleeve upper section 3. One side of the adhesive ring 2 is sticky and is used to be attached to the patient's body surface, so that the outer sleeve upper section 3 completely covers the patient's body surface drainage tube opening, so that when there is exudate or leakage, the liquid will not flow out of the outer sleeve.

[0022] like Figure 2 and Figure 3 As shown, the inner diameter of the outer sleeve is larger than the outer diameter of the inner sleeve extension section 12, and the inner sleeve extension section 12 is inserted into the outer sleeve. Specifically, the outer diameter of the bottom end of the inner sleeve extension section 12 is smaller than the inner diameter of the outer sleeve lower section 4, and the size of the inner sleeve extension section 12 away from the inner sleeve body section 11 is smaller than the size of the inner sleeve body section 11. The bottom end of the inner sleeve extension section 12 extends into the outer sleeve lower section 4, and there is an annular gap between the outer wall of the inner sleeve extension section 12 and the inner wall of the outer sleeve, forming a flow space for the leaked liquid, so that the liquid flowing out from the outside of the inner sleeve 1 flows downward between the outer wall of the inner sleeve extension section 12 and the inner wall of the outer sleeve.

[0023] At the same time, the size of the annular gap between the outer wall of the inner sleeve extension section 12 and the inner wall of the outer sleeve gradually decreases. Figure 3 As shown, the farther away from the inner sleeve body section 11, the size of the annular space gradually decreases until it reaches a certain level, making it easier for the liquid in the annular space to gather and flow downward.

[0024] like Figure 4 As shown, an inner and outer tube connecting portion 5 is provided in the annular gap between the outer wall of the inner segment 11 of the inner sleeve body and the inner wall of the lower segment 4 of the outer sleeve, which is used to fix the inner sleeve 1 and the outer sleeve. At the same time, the inner and outer tube connecting portions 5 are arranged at annular intervals in the annular gap, that is, there is a gap between the inner and outer tube connecting portions 5, through which liquid can pass. The inner and outer tube connecting portions 5 are arranged at the bottom end of the inner segment 11 of the inner sleeve body.

[0025] When using this leakproof drainage tube, after the patient's body surface is opened, the inner section 11 of the inner sleeve is inserted into the patient's body, and then the adhesive ring 2 is attached to the patient's body surface, so that the upper section 3 of the outer sleeve completely covers the opening of the drainage tube on the patient's body surface, and the installation is completed. The liquid flows out from the inner sleeve 1 and between the inner sleeve 1 and the outer sleeve, and the liquid in the inner sleeve 1 directly flows into the lower section 4 of the outer sleeve. The liquid between the inner sleeve 1 and the outer sleeve flows downward from the annular gap, completely flows into the lower section 4 of the outer sleeve through the gap between the outer tube connecting parts 5, and converges with the liquid flowing out of the inner sleeve 1, and finally flows into the drainage bag through the lower section 4 of the outer sleeve to complete the collection of the liquid.

Claims

1. A leak-proof drainage tube, characterized in that: include: An inner cannula and an outer cannula, wherein the inner cannula comprises an inner cannula inner section and an inner cannula extension section, and the inner cannula inner section is inserted into the patient's body; The inner diameter of the top end of the outer sleeve is larger than the opening size of the drainage tube on the patient's body surface, and an adhesive ring is provided on the outer side of the top end of the outer sleeve, which is adhered to the patient's body surface; the inner diameter of the outer sleeve is larger than the outer diameter of the inner sleeve extension section, and the inner sleeve extension section is inserted into the outer sleeve. There is an annular gap between the outer wall of the inner sleeve extension section and the inner wall of the outer sleeve, forming a flow space for the leaked liquid, and several inner and outer tube connecting parts are arranged at intervals in the annular gap for fixedly connecting the inner sleeve and the outer sleeve.

2. The leak-proof drainage tube according to claim 1, characterized in that: The outer sleeve comprises an upper outer sleeve section and a lower outer sleeve section. The upper outer sleeve section is trumpet-shaped. The inner diameter of the connecting end of the upper outer sleeve section and the adhesive ring is larger than the inner diameter of the connecting end of the upper outer sleeve section and the lower outer sleeve section.

3. The leak-proof drainage tube according to claim 2, characterized in that: The outer diameter of the bottom end of the inner sleeve extension section is smaller than the inner diameter of the lower section of the outer sleeve, and the bottom end of the inner sleeve extension section extends into the lower section of the outer sleeve.

4. The leak-proof drainage tube according to claim 2, characterized in that: The inner and outer pipe connecting part is arranged at the bottom end of the inner sleeve body section, and the inner and outer pipe connecting part is arranged between the outer wall of the inner sleeve body section and the inner wall of the outer sleeve lower section.

5. The leak-proof drainage tube according to claim 2, characterized in that: The size of the inner sleeve extension section away from one end of the inner sleeve body section is smaller than the size of the inner sleeve body section, and the size of the annular gap between the outer wall of the inner sleeve extension section and the inner wall of the outer sleeve gradually decreases.

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