Abdominal cavity drainage tube device
The design of the outer tube and inner balloon solves the problems of unstable fixation and difficult position adjustment of the abdominal drainage tube, achieving firm fixation and position adjustment of the drainage tube on the abdominal wall, preventing fluid leakage, and simplifying operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SECOND AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIV
- Filing Date
- 2025-01-20
- Publication Date
- 2026-05-19
AI Technical Summary
The existing methods of fixing abdominal drainage tubes have problems such as instability and difficulty in adjusting the fixing position.
The design employs an outer tube and an inner air bladder. The outer and inner air bladders are inflated or filled with water through the air bladder inflation/deflation connector. The outer air bladder is positioned inside the abdominal wall, while the outer tube is fixed to the outer side of the abdominal wall by a limiting ring. The inner air bladder is inflated between the outer tube and the drainage tube, achieving a secure fixation. It is further secured by the limiting ring and tape.
It enables the adjustment and secure fixation of the drainage tube on the abdominal wall, preventing fluid leakage, and is simple and convenient to operate.
Smart Images
Figure CN224251854U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to an abdominal drainage tube device. Background Technology
[0002] An abdominal drainage tube is a widely used medical device in gastrointestinal surgery to drain fluids, gases, or other substances from the abdominal cavity. It is crucial for ensuring postoperative recovery and monitoring changes in the patient's condition. When inserting an abdominal drainage tube into the abdominal cavity, it must be secured to the abdominal wall to prevent it from dislodging.
[0003] The traditional method of fixing abdominal drainage tubes is to suture them with needle and thread after insertion and then fix them with a catheter fixation tape for secondary fixation. This method has the drawbacks of being troublesome and not very secure.
[0004] Chinese utility model patent CN205683383U discloses an abdominal drainage tube with a fixing patch. This patent involves placing an air bladder on the drainage tube. After insertion, the air bladder is inflated or filled with liquid, causing it to inflate and position itself on the inner side of the abdominal wall. The drainage tube is then fixed to the outer side of the abdominal wall with a patch, thus achieving tube fixation. While this method makes fixing the abdominal drainage tube more convenient and secure, it has limitations because the depth of insertion into the abdominal cavity affects the position of the drainage tube on the abdominal wall. The fixed position of the air bladder on the drainage tube means the position of the drainage tube on the abdominal wall cannot be adjusted, presenting certain limitations. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an abdominal drainage tube device that facilitates the adjustment of the position of the drainage tube fixed on the abdominal wall, and has a simple structure and is easy to operate.
[0006] This utility model provides an abdominal drainage tube device, comprising:
[0007] Drainage tube;
[0008] The outer tube is fitted over the drainage tube, and the inner wall of the outer tube is provided with an airbag channel extending along its length.
[0009] An external airbag surrounds the outside of the proximal end of the outer sleeve and communicates with the airbag channel;
[0010] An inner airbag surrounds the inside of the proximal end of the outer tube and between it and the drainage tube, and communicates with the airbag channel.
[0011] An airbag inflation / deflation connector is connected to the outside of the distal end of the outer sleeve and communicates with the airbag channel;
[0012] And a limiting ring, which is located outside the outer sleeve and at the distal end of the external air bladder, forming an area between the limiting ring and the external air bladder for limiting the abdominal wall.
[0013] Furthermore, the inner and outer circumferential surfaces of the proximal end of the outer sleeve are provided with recessed areas, and the outer and inner airbags are respectively housed in the corresponding recessed areas when they contract.
[0014] Furthermore, the outer sleeve is provided with an external thread, and the limiting ring is provided with an internal thread that mates with the external thread.
[0015] Furthermore, the limiting ring includes a convex ring portion opposite to the external airbag and a ring sleeve portion extending distally from the convex ring portion.
[0016] Furthermore, the end of the airbag inflation / deflation connector is provided with an injection valve core.
[0017] Furthermore, the injection valve core is made of rubber.
[0018] Furthermore, the distal end of the outer sleeve is secured to the outside of the drainage tube by wrapping it with adhesive tape.
[0019] Furthermore, the drainage tube is made of silicone, while the outer sleeve and the limiting ring are made of hard plastic.
[0020] The beneficial effects of this utility model are reflected in:
[0021] When inserting a drainage tube into the abdominal cavity, the drainage tube and the outer sheath covering it can be passed through the abdominal wall together. The depth and position of the drainage tube are then adjusted. After insertion, the outer and inner air bladders are inflated or filled with water through the air bladder inflation / deflation connector. The inflated outer air bladder is confined to the inner side of the abdominal wall, while the retaining ring on the outer sheath confines it to the outer side of the abdominal wall, thus achieving confinement between the outer sheath and the abdominal wall. The inflated inner air bladder tightens between the outer sheath and the drainage tube, thus securing them together. This method not only secures the drainage tube but also prevents fluid from leaking out between the outer sheath and the abdominal wall, and between the outer sheath and the drainage tube. This method of securing the drainage tube allows for easy adjustment of its position against the abdominal wall and is simple in structure and convenient to operate. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0023] Figure 1 This is a perspective view of an embodiment of the present utility model;
[0024] Figure 2 This is a longitudinal sectional view of an embodiment of the present utility model;
[0025] Figure 3 for Figure 2 A magnified view of a portion of the image.
[0026] In the attached diagram, 100-drainage tube; 200-outer tube; 210-airbag channel; 220-recessed area; 230-external thread; 300-outer airbag; 400-inner airbag; 500-airbag inflation / deflation connector; 510-injection valve core; 600-limiting ring; 610-internal thread; 620-convex ring; 630-ring sleeve; 700-adhesive tape. Detailed Implementation
[0027] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0028] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
[0029] like Figures 1-3 As shown, this utility model embodiment provides an abdominal drainage tube device, including a drainage tube 100, an outer tube 200, an outer air bladder 300, an inner air bladder 400, an air bladder inflation / deflation connector 500, and a limiting ring 600.
[0030] In this embodiment, the drainage tube 100 may be made of silicone, and the outer tube 200 and the limiting ring 600 may be made of rigid plastic.
[0031] The outer tube 200 is fitted over the drainage tube 100, and the inner wall of the outer tube 200 is provided with an airbag channel 210 extending along its length.
[0032] The external airbag 300 surrounds the outside of the proximal end of the outer sleeve 200 and communicates with the airbag channel 210.
[0033] The inner airbag 400 surrounds the inside of the proximal end of the outer tube 200 and the drainage tube 100, and is connected to the airbag channel 210.
[0034] The airbag inflation / deflation connector 500 is connected to the outside of the outer sleeve 200 and communicates with the airbag channel 210.
[0035] The limiting ring 600 is located outside the outer tube 200 and at the distal end of the external air bladder 300, forming an area between the limiting ring 600 and the external air bladder 300 for limiting the abdominal wall.
[0036] When the drainage tube 100 is inserted into the abdominal cavity, the drainage tube 100 and the outer sleeve 200 covering the drainage tube 100 can be passed through the abdominal wall together. Then, the depth and position of the drainage tube 100 in the abdominal cavity are adjusted. After the drainage tube 100 is inserted, the outer balloon 300 and the inner balloon 400 are inflated or filled with water through the balloon inflation / deflation connector 500, causing the outer balloon 300 and the inner balloon 400 to expand. After the outer balloon 300 expands, it is confined to the inner side of the abdominal wall, while the outer sleeve... The limiting ring 600 outside the outer tube 200 is positioned on the outer side of the abdominal wall, thus limiting the connection between the outer tube 200 and the abdominal wall. The inner balloon 400 inflates and tightens between the outer tube 200 and the drainage tube 100, thus securing them together. This method not only secures the drainage tube 100 but also prevents leakage of intra-abdominal fluid from between the outer tube 200 and the abdominal wall, and between the outer tube 200 and the drainage tube 100. This method of securing the drainage tube 100 allows for easy adjustment of its position on the abdominal wall, and is simple in structure and convenient to operate.
[0037] In some embodiments, refer to Figure 3 The inner and outer circumferential surfaces of the proximal end of the outer tube 200 are provided with recessed areas 220. When the outer air bladder 300 and the inner air bladder 400 are contracted, they are respectively housed in the corresponding recessed areas 220. When the outer air bladder 300 is contracted, it will not prevent the outer tube 200 from penetrating the abdominal wall. When the inner air bladder 400 is contracted, it will not affect the sliding of the outer tube 200 along the drainage tube 100.
[0038] In some embodiments, refer to Figure 3 The outer sleeve 200 has an external thread 230, and the limiting ring 600 has an internal thread 610 that mates with the external thread 230. During the fixation of the drainage tube 100, after the external air bladder 300 is inflated, the outer sleeve 200 can be pulled outward so that the external air bladder 300 is tightly against the inner side of the abdominal wall. This ensures that the fluid in the abdominal cavity will not leak out between the outer sleeve 200 and the abdominal wall. After the external air bladder 300 is tightly against the abdominal wall, the limiting ring 600 is rotated so that the limiting ring 600 is pressed against the outer side of the abdominal wall.
[0039] Optionally, the limiting ring 600 includes a convex ring portion 620 opposite to the external airbag 300 and a sleeve portion 630 extending distally from the convex ring portion 620. When rotating the limiting ring 600, one can hold the distal end of the outer sleeve 200 with one hand and the sleeve portion 630 of the limiting ring 600 with the other hand to twist it, making the twisting operation more convenient.
[0040] In some embodiments, refer to Figure 1 and Figure 2 The airbag inflation / deflation connector 500 has an injection valve core 510 at its end, preferably made of rubber. In this embodiment, gas or liquid can be injected into the outer airbag 300 and the inner airbag 400 using a syringe. During injection, the syringe needle is inserted into the injection valve core 510, and after inflation or liquid filling is completed, the syringe needle is pulled out.
[0041] In some embodiments, refer to Figure 1 and Figure 2 The distal end of the outer tube 200 is secured to the outside of the drainage tube 100 by wrapping it with tape 700. The proximal ends of the drainage tube 100 and the outer tube 200 are compressed and secured by the inner air bladder 400, while the distal ends of the drainage tube 100 and the outer tube 200 are secured by wrapping with tape 700. This further improves the firmness of the fixation between the drainage tube 100 and the outer tube 200 and further prevents slippage between the drainage tube 100 and the outer tube 200 during the drainage process.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. An abdominal drainage tube device, characterized in that, include: Drainage tube; The outer tube is fitted over the drainage tube, and the inner wall of the outer tube is provided with an airbag channel extending along its length. An external airbag surrounds the outside of the proximal end of the outer sleeve and communicates with the airbag channel; An inner airbag surrounds the inside of the proximal end of the outer tube and between it and the drainage tube, and communicates with the airbag channel. An airbag inflation / deflation connector is connected to the outside of the distal end of the outer sleeve and communicates with the airbag channel; And a limiting ring, which is located outside the outer sleeve and at the distal end of the external air bladder, forming an area between the limiting ring and the external air bladder for limiting the abdominal wall.
2. The abdominal drainage tube device according to claim 1, characterized in that, The inner and outer circumferential surfaces of the proximal end of the outer sleeve are both provided with recessed areas, and the outer and inner airbags are respectively housed in the corresponding recessed areas when they contract.
3. The abdominal drainage tube device according to claim 1, characterized in that, The outer sleeve has an external thread, and the limiting ring has an internal thread that mates with the external thread.
4. The abdominal drainage tube device according to claim 3, characterized in that, The limiting ring includes a convex ring portion opposite to the external airbag and a loop portion extending distally from the convex ring portion.
5. The abdominal drainage tube device according to claim 1, characterized in that, The airbag inflation / deflation connector is equipped with an injection valve core at its end.
6. The abdominal drainage tube device according to claim 5, characterized in that, The injection valve core is made of rubber.
7. The abdominal drainage tube device according to claim 1, characterized in that, The distal end of the outer sleeve is secured to the outside of the drainage tube by wrapping it with tape.
8. The abdominal drainage tube device according to claim 1, characterized in that, The drainage tube is made of silicone, while the outer tube and the limiting ring are made of hard plastic.