A retractable drainage tube

Abstract

The utility model relates to the field of medical equipment, the utility model discloses a telescopic drainage tube, it includes the sheath tube for going into the wound and the drainage tube of wearing in the sheath tube, the sheath tube front end is equipped with the fixed component of clamping in the inside surface of wound, the back end of sheath tube is equipped with the adjusting component for holding the drainage tube, the sheath tube still is equipped with the sealing component of sticking to the outside surface of wound, the utility model has good stability in the wound, and its simple structure, convenient operation still have the advantage that reduce the infection risk of wound.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically a retractable drainage tube. Background Technology

[0002] As an indispensable medical device, drainage tubes are used in a wide range of scenarios, from routine care to post-operative care after complex surgeries. However, while traditional drainage tubes play an important role in promoting patient recovery, their inherent limitations are becoming increasingly apparent, posing a key factor affecting treatment outcomes and patient safety.

[0003] Specifically, traditional drainage tubes are often designed with a fixed length, lacking the ability to be flexibly adjusted. In complex medical procedures, the distribution of fluids within a patient's body may dynamically adjust due to changes in their condition. In such cases, a fixed drainage tube length becomes inadequate. If the drainage depth is insufficient to cover all the fluids that need to be drained, it may lead to inadequate drainage, prolonging the patient's recovery period, and even increasing the risk of complications. Furthermore, when the depth of the drainage tube needs to be adjusted to cope with new situations, because the external part is exposed to a non-sterile environment, traditional drainage tubes often can only be adjusted in a limited unidirectional manner. That is, to ensure the sterility of the drainage tube, the tube located inside the body can only be pulled out, which undoubtedly limits its flexible application in clinical practice.

[0004] More seriously, the shortcomings of traditional drainage tubes in terms of fixation and sealing also pose potential safety hazards. Ensuring the stable fixation and effective sealing of the drainage tube at the surgical incision site is a crucial step in preventing infection. However, the current market lacks dressings specifically designed for drainage tubes, and commonly used general-purpose dressings often fail to perfectly fit the shape of the drainage tube, increasing the risk of bacterial invasion and posing a potential threat to the patient's recovery. Utility Model Content

[0005] The purpose of this invention is to provide a retractable drainage tube that has good stability within the wound, and is simple in structure, easy to operate, and has the advantage of reducing the risk of wound infection.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A retractable drainage tube includes a sheath for inserting into a wound and a drainage tube inserted inside the sheath. The front end of the sheath is provided with a fixing component that engages with the inner side of the wound, and the rear end of the sheath is provided with an adjusting component for holding the drainage tube tightly. The sheath is also fitted with a sealing component that fits against the outer side of the wound.

[0008] Compared with the prior art, the advantages of this utility model are:

[0009] 1. By setting up corrugated sections, sealing components, and fixing components, the drainage tube can be moved synchronously when the corrugated sections are stretched or contracted and folded. This allows the drainage tube to be adjusted in a sterile environment, while preventing the drainage tube from falling out of the wound due to adjusting the drainage length or under the action of external force, thus ensuring the stability of the drainage process.

[0010] 2. By setting up a sealing dressing and a first elastic element, the front side of the sealing dressing first adheres to the skin around the wound, preventing external contaminants from entering the wound. Secondly, the first elastic element locks the sealing dressing onto the sheath, achieving double fixation of the sealing dressing. This not only increases the stability of the sealing dressing but also significantly improves the sealing performance and reduces the risk of infection. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a first embodiment of the retractable drainage tube of this utility model;

[0012] Figure 2 yes Figure 1 Schematic diagram of structural combination;

[0013] Figure 3 yes Figure 1 A simplified structural diagram of the sheath.

[0014] Figure 4 This is a simplified structural diagram of the sealing assembly of this utility model;

[0015] Figure 5 This is a simplified structural diagram of the first tensioning component of this utility model;

[0016] Figure 6 This is a simplified structural diagram of the second tensioning component of this utility model;

[0017] Figure 7 This is a simplified structural diagram of the drainage tube of this utility model;

[0018] Figure 8 This is a simplified structural diagram of the corrugated section of this utility model;

[0019] Figure 9 This is a partial structural diagram of a second embodiment of the retractable drainage tube of this utility model;

[0020] Figure 10 This is a simplified structural diagram of the inner sheath of a retractable drainage tube according to Embodiment 3 of this utility model.

[0021] Labeling Explanation: 1 Sheath, 100, Abdominal Wall Surface, 11 Internal Sheath, 110 Corrugated Section, 12 External Sheath, 120 Support Rib, 2 Drainage Tube, 200 Drainage Hole, 3 Fixation Component, 31 Annular Airbag, 32 Inflation Port, 4 Sealing Component, 41 Sealing Adhesive, 42 First Clamping Ring, 420 First Notch, 43 First Elastic Component, 431 First Elastic Band, 432 First Mating Seat, 44 Relief Groove, 5 Adjustment Component, 51 Second Clamping Ring, 510 Second Notch, 52 Second Elastic Component, 521 Second Elastic Band, 522 Second Mating Seat. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0023] like Figure 1-8 The diagram shown is a schematic representation of one embodiment of the retractable drainage tube provided by this utility model. Embodiment 1:

[0024] A retractable drainage tube includes a sheath 1 for inserting into a wound and a drainage tube 2 inserted inside the sheath 1. The front end of the sheath 1 is provided with a fixing component 3 that is snapped onto the inner side of the wound. The rear end of the sheath 1 is provided with an adjusting component 5 for holding the drainage tube 2 tightly. The sheath 1 is also fitted with a sealing component 4 that fits against the outer side of the wound.

[0025] The fixing component 3 includes an annular airbag 31 located at the front end of the sheath tube 1 and an inflation port 32 located in the middle and rear section of the sheath tube 1. An air passage is connected between the annular airbag 31 and the inflation port 32. A one-way air valve is also provided in the inflation port 32.

[0026] The sealing assembly 4 includes a sealing dressing 41 that fits into the wound, a first retaining ring 42 fixed to the rear side of the sealing dressing 41, and a first elastic member 43. The sealing dressing 41 is also provided with a groove 44 for easy installation.

[0027] The first retaining ring 42 has a first notch 420 to facilitate its deformation, and the first fastening member 43 is connected to both sides of the first notch 420 to lock the first retaining ring 42 onto the sheath tube 1.

[0028] Specifically, the front side of the sealing patch 41 is adhesive, and the front side of the sealing patch 41 is also provided with release paper.

[0029] The adjustment assembly 5 includes a second retaining ring 51 and a second tensioning member 52 fixed to the rear end of the sheath tube 1;

[0030] The drainage tube 2 is inserted into the sheath tube 1 through the second retaining ring 51, and the second retaining ring 51 is provided with a second notch 510 to facilitate its deformation. The second fastening member 52 is connected to both sides of the second notch 510 to lock the second retaining ring 51 onto the drainage tube 2.

[0031] The first elastic member 43 includes a first elastic band 431 and a first mating seat 432 that engages with the first elastic band 431;

[0032] The first mating seat 432 and the first elastic band 431 are respectively located on both sides of the first notch 420. The first mating seat 432 is provided with a first locking hole for the first elastic band 431 to pass through.

[0033] The second elastic member 52 includes a second elastic band 521 and a second mating seat 522 that engages with the second elastic band 521;

[0034] The second mating seat 522 and the second elastic band 521 are respectively located on both sides of the second notch 510. The second mating seat 522 is provided with a second locking hole for the second elastic band 521 to pass through.

[0035] The front end of the drainage tube 2 is provided with a plurality of drainage holes 200, and the plurality of drainage holes 200 are arranged in a ring array.

[0036] The middle and rear section of the sheath 1 is a retractable and foldable corrugated section 110.

[0037] Example 2: A retractable drainage tube

[0038] like Figure 9 As shown, the basic structure of this second embodiment is generally similar to that of the first embodiment. The difference between the second embodiment and the first embodiment is that the sheath 1 includes an inner sheath 11 that penetrates into the wound and an outer sheath 12 connected to the rear end of the inner sheath 11. The inner sheath 11 and the outer sheath 12 are fitted together with an interference fit. Specifically, the front end of the outer sheath 12 is inserted into the inner side of the inner sheath 11 with an interference fit, or the rear end of the inner sheath 11 is inserted into the inner side of the outer sheath 12 with an interference fit.

[0039] Furthermore, the inner sheath 11 and the outer sheath 12 can be made of elastic materials such as silicone or rubber.

[0040] Example 3: A retractable drainage tube

[0041] like Figure 10 As shown, the basic structure of this embodiment 3 is generally similar to that of embodiment 2. The difference between the two embodiments is that a number of supporting ribs 120 are provided on the outer peripheral wall of the inner sheath 11. The supporting ribs 120 are used to increase the contact area between the inner sheath 11 and the wound, so as to increase the friction and further improve the stability of the inner sheath 11 entering the wound.

[0042] The general method of using this utility model is as follows:

[0043] Step S1: The inner sheath 11 and the outer sheath 12 are fitted together with an interference fit to form an integral sheath 1 (this step is not required for Example 1).

[0044] Step S2: Pass the drainage tube 2 through the sheath 1, and fix the drainage tube 2 on the sheath 1 at a suitable position using the adjusting component 5. At this time, pull the retractable and foldable corrugated section 110 of the sheath 1 to drive the drainage tube 2 to move synchronously.

[0045] Step S3: Insert the front end of the drainage tube 2 into the wound in the skin or other tissue (e.g., the abdominal wall surface 100) until the annular air bladder 31 on the front end fixation component 3 of the sheath 1 enters the inner side of the abdominal wall surface 100. At this time, the annular air bladder 31 is not injected with air and is in a contracted state.

[0046] Step S4: Inject air into the annular airbag 31 through the air inlet 32, causing the annular airbag 31 on the inner side of the abdominal wall 100 to inflate. At this time, even if the corrugated section 110 is pulled, the drainage tube 2 cannot be pulled out of the wound.

[0047] Step S5: By inserting the sealing dressing 41 from the side of the sheath 1 through the groove 44, and sliding the sealing dressing 41 to the outer side of the abdominal wall surface 100, the sealing dressing 41 is adhered to the skin around the wound on the abdominal wall surface 100.

[0048] Step S6: Secure the sealing dressing 41 to the sheath 1 using the first elastic member 43. Since the front side of the sealing dressing 41 is bonded to the abdominal wall surface 100, and the sealing dressing 41 is secured to the sheath 1 by the first elastic member 43, the sealing dressing 41 is double-fixed, which not only increases the stability of the sealing dressing 41, but also ensures that the wound is not contaminated by external bacteria.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A retractable drainage tube, comprising a sheath (1) for insertion into a wound and a drainage tube (2) inserted within the sheath (1), characterized in that: The sheath (1) has a fixing component (3) at the front end that is snapped into the inner side of the wound, and an adjustment component (5) at the rear end of the sheath (1) for holding the drainage tube (2). The sheath (1) is also fitted with a sealing component (4) that fits into the outer side of the wound.

2. The retractable drainage tube according to claim 1, characterized in that: The fixing component (3) includes an annular airbag (31) located at the front end of the sheath (1) and an inflation port (32) located in the middle and rear section of the sheath (1). An air passage is connected between the annular airbag (31) and the inflation port (32). A one-way air valve is also provided in the inflation port (32).

3. The retractable drainage tube according to claim 1, characterized in that: The sealing assembly (4) includes a sealing dressing (41) that fits against the wound, a first retaining ring (42) fixed to the rear side of the sealing dressing (41), and a first elastic member (43). The sealing dressing (41) also has a groove (44) for easy installation. The first retaining ring (42) has a first notch (420) to facilitate its deformation, and the first fastening member (43) is connected to both sides of the first notch (420) to lock the first retaining ring (42) onto the sheath (1).

4. The retractable drainage tube according to claim 1, characterized in that: The adjustment assembly (5) includes a second retaining ring (51) and a second tensioning member (52) fixed to the rear end of the sheath (1); The drainage tube (2) is inserted into the sheath tube (1) through the second retaining ring (51), and the second retaining ring (51) is provided with a second notch (510) to facilitate its deformation. The second fastening member (52) is connected to both sides of the second notch (510) to lock the second retaining ring (51) onto the drainage tube (2).

5. The retractable drainage tube according to claim 3, characterized in that: The first elastic member (43) includes a first elastic band (431) and a first mating seat (432) that engages with the first elastic band (431); The first mating seat (432) and the first elastic band (431) are respectively located on both sides of the first notch (420), and the first mating seat (432) is provided with a first locking hole for the first elastic band (431) to pass through.

6. The retractable drainage tube according to claim 4, characterized in that: The second elastic member (52) includes a second elastic band (521) and a second mating seat (522) that engages with the second elastic band (521); The second mating seat (522) and the second elastic band (521) are respectively located on both sides of the second notch (510). The second mating seat (522) is provided with a second locking hole for the second elastic band (521) to pass through.

7. The retractable drainage tube according to claim 1, characterized in that: The front end of the drainage tube (2) is provided with several drainage holes (200), and the several drainage holes (200) are arranged in a ring array.

8. The retractable drainage tube according to any one of claims 1 to 7, characterized in that: The middle and rear section of the sheath (1) is a retractable and foldable corrugated section (110).

9. The retractable drainage tube according to claim 8, characterized in that: The sheath (1) includes an inner sheath (11) that penetrates the wound and an outer sheath (12) connected to the rear end of the inner sheath (11), with the inner sheath (11) and the outer sheath (12) being fitted together by an interference fit.

10. The retractable drainage tube according to claim 9, characterized in that: The outer peripheral wall of the inner sheath (11) is provided with a number of supporting ribs (120).

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