A multidirectional adjustable anal tube fixing device

The multi-directional adjustable anal cannula fixation device, using a combination of U-shaped sliders and adhesive tape, solves the problem of unstable anal cannula fixation, achieving a stable and comfortable anal cannula fixation effect, and facilitating tape replacement.

CN224573068UActive Publication Date: 2026-07-31RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
Filing Date
2025-04-25
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing anal canal fixation devices are not securely fixed to the patient's perianal area and buttocks, causing pain due to suture traction. Furthermore, the position of the adhesive tape or sutures is difficult to adjust according to the patient's condition, affecting the fixation effect and comfort.

Method used

Design a multi-directional adjustable anal tube fixation device, including an anal tube body, tail tube, head tube, limiting ring, U-shaped slider and medical tape. The position is adjusted by sliding the slider on the groove. Combined with a rubber sleeve and airway, the fixation stability and comfort are enhanced.

Benefits of technology

This design achieves stable fixation of the anal cannula in the buttocks, avoiding traction on the wound, improving comfort, and the tape is easy to replace, enhancing the safety and stability of the fixation device.

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    Figure CN224573068U_ABST
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Abstract

This utility model relates to a multi-directional adjustable anal cannula fixation device, which includes an anal cannula body, a tail tube, a head tube, a limiting ring, a U-shaped slider, and medical tape. The tail tube is connected to one end of the anal cannula body, and the head tube is connected to the other end of the anal cannula body. The limiting ring is connected to the outer wall of the tail tube. A groove is formed on the limiting ring, and the U-shaped slider is slidably connected to the groove. A connecting hole is formed on the U-shaped slider. The medical tape is connected to the connecting hole and is used to adhere to the buttocks to fix the multi-directional adjustable anal cannula fixation device. Compared with the prior art, this utility model, by setting the anal cannula body, tail tube, head tube, limiting ring, U-shaped slider, and medical tape, can be adhered to different positions on the buttocks, avoiding traction on wounds, providing convenient fixation, better comfort, and easy replacement of the medical tape.
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Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary technology, and in particular to a multi-directional adjustable anal canal fixation device. Background Technology

[0002] Anal canals are generally used for patients who need to maintain bowel patency after surgery, prevent anastomotic leakage, and promote healing of the intestinal junction, or for patients with chronic diarrhea or severe perianal skin damage. Due to the anatomical and physiological reasons of the anus, the anal canal cannot be designed as a double-lumen type like a urinary catheter, meaning it cannot be fixed with a water balloon. Therefore, in clinical practice, anal canal fixation is currently all done using external fixation methods.

[0003] Anal cannula placement refers to the insertion of a disposable silicone anal cannula using routine nursing procedures. Clinically, the anal cannula is usually fixed directly to the patient's buttocks with adhesive tape or sutures. However, due to conditions such as stoma or skin lesions around the anus, it may be difficult to securely attach the fixed anal cannula, resulting in weak adhesion and certain shortcomings. The traction of the sutures can also cause pain in the buttocks, increasing the patient's suffering. Therefore, an anal cannula fixation device that allows adjustment of the adhesive tape or suture position according to the patient's actual condition is needed to ensure that the adhesive tape or sutures are fixed in a suitable position for adhesion and fixation. CN112370635A discloses an anal canal fixing device and anal canal fixing method, including: a fixing tape and an anal canal connected to the fixing tape; the fixing tape includes a connecting part and a fixing part that are connected to each other; the fixing part includes at least three fixing legs for adhering to the human body; the connecting part cooperates with the anal canal, and when the connecting part is wound around the anal canal, at least three fixing legs are arranged along the circumferential direction of the anal canal; however, the anal canal fixing device in CN112370635A uses the connecting part of the fixing tape to be wound around the anal canal, which is not conducive to installing new fixing tape or removing used fixing tape. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the existing technology by providing a multi-directional adjustable anal tube fixation device. By setting up an anal tube body, tail tube, head tube, limiting ring, U-shaped slider, and medical tape, it can be attached to different positions on the buttocks, avoiding pulling on the wound, making fixation convenient, providing better comfort, and the medical tape is easy to replace.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] The purpose of this invention is to provide a multi-directional adjustable anal cannula fixation device, which includes an anal cannula body, a tail tube, a head tube, a limiting ring, a U-shaped slider, and medical tape. The tail tube is connected to one end of the anal cannula body, and the head tube is connected to the other end of the anal cannula body. The limiting ring is connected to the outer wall of the tail tube. A groove is provided on the limiting ring, and the U-shaped slider is slidably connected to the groove. A connecting hole is provided on the U-shaped slider. The medical tape is connected to the connecting hole and is used to adhere to the buttocks to fix the multi-directional adjustable anal cannula fixation device.

[0007] Furthermore, at least three circumferentially distributed U-shaped sliders are slidably mounted on the groove.

[0008] Furthermore, the two opposite surfaces of the outer wall of the limiting ring are provided with sliding grooves, and the two sliding grooves are symmetrically arranged; two symmetrically arranged connecting sliders that are adapted to the sliding grooves are fixedly installed on the two opposite surfaces of the inner wall of the U-shaped slider, and the connecting sliders are engaged in the sliding grooves.

[0009] Furthermore, the maximum outer diameter of both the tail tube and the head tube is greater than the maximum outer diameter of the anal tube body.

[0010] Furthermore, the anal canal body is cylindrical; the tail tube is cylindrical; the head tube is frustoconical, and the diameter of the head tube gradually decreases from the end near the anal canal body to the end away from the anal canal body.

[0011] Furthermore, the multi-directional adjustable anal tube fixing device also includes an anti-slip mechanism; the anti-slip mechanism includes a rubber sleeve, which is fitted onto the outside of the anal tube body; the two ends of the rubber sleeve abut against the tail tube and the head tube, respectively.

[0012] Furthermore, the multi-directional adjustable anal tube fixing device also includes an air passage; the air passage is opened inside the anal tube body and the tail tube; the two outlets of the air passage are respectively opened on the outer side wall of the anal tube body and the outer side wall of the tail tube.

[0013] Furthermore, an air sac cavity is formed on the inner wall of the rubber sleeve at a location corresponding to the airway outside the anal tube body.

[0014] Furthermore, the outlet of the venting channel located on the outer wall of the tailpipe is connected to an air nozzle; the air nozzle is connected to the venting channel.

[0015] Furthermore, a one-way valve is inserted into the air nozzle.

[0016] Furthermore, multi-directional adjustability refers to the setting of three circumferentially distributed U-shaped sliders, with the U-shaped sliders slidably connected to the slide grooves, allowing for adjustment.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The multi-directional adjustable anal tube fixing device provided by this utility model inserts the anal tube body into the anus from one end of the head tube until it reaches the limiting ring on the tail tube, so as to avoid the anal tube body being inserted too deeply and making it safer. Then, the medical tape is attached to the connecting hole on the U-shaped slider. Then, the U-shaped slider is pulled so that the U-shaped slider slides circumferentially on the slide groove to adjust the position. The medical tape is attached to different positions on the buttocks to avoid pulling on the wound. It is easy to fix and more comfortable. The medical tape is also easy to replace.

[0019] (2) The multi-directional adjustable anal tube fixing device provided by this utility model further allows the anal tube body with a rubber sleeve to be inserted into the anus and rectum. Gas is injected through the air passage, and the enclosed air bladder cavity bulges up, causing the outer wall of the rubber sleeve to bulge and contact the inner wall of the rectum. This makes the bulging part larger than the contraction size of the anal sphincter, so that the anal tube body will not easily slip off. Moreover, the soft rubber sleeve has less discomfort when in contact with the inner wall of the rectum and has good stability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a multi-directional adjustable anal canal fixing device according to an embodiment of the present utility model;

[0021] Figure 2 This is an exploded structural diagram of a multi-directional adjustable anal canal fixing device according to an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional structural schematic diagram of a multi-directional adjustable anal canal fixing device according to an embodiment of the present utility model;

[0023] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 5 for Figure 3 Enlarged diagram of point B in the middle.

[0025] The numbers in the diagram are as follows:

[0026] 1. Anal tube body; 11. Tail tube; 12. Head tube; 13. Limiting ring; 14. Slide groove; 15. U-shaped slider; 16. Connecting slider; 17. Connecting hole; 18. Medical tape; 2. Anti-slip mechanism; 21. Rubber sleeve; 22. Air passage; 23. Air bladder cavity; 24. Air nozzle; 25. One-way rubber valve. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Any component models, material names, connection structures, control methods, etc., not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0028] It should be noted that the orientations or positional relationships indicated by terms such as "front," "rear," "left," "right," "up," "down," "inner," and "outer" in this application are based on the orientations or positional relationships indicated in the accompanying drawings. They are used for the purpose of making the description of this application more concise and clear, and do not imply that the connecting parts or components must have definite positional limitations. Therefore, they should not be considered as limitations on this application. Furthermore, the embodiments described in this application are only a part of the embodiments of this utility model and cannot represent all embodiments. Other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0031] Example 1

[0032] This embodiment provides a multi-directional adjustable anal canal fixing device, such as Figure 1-5 As shown, the fixing device includes an anal tube body 1, a tail tube 11 fixedly installed at one end of the anal tube body 1, and a head tube 12 fixedly installed at the other end of the anal tube body 1. In this embodiment, the anal tube body 1, the tail tube 11, and the head tube 12 are integrally formed.

[0033] A limiting ring 13 is fixedly installed on the outer side wall of the tail tube 11. The limiting ring 13 is arranged circumferentially along the outer side wall of the tail tube 11 and protrudes outward relative to the outer side wall of the tail tube 11. A sliding groove 14 is provided on two opposing surfaces of the outer side wall of the limiting ring 13. The two sliding grooves 14 are symmetrically arranged. At least three circumferentially distributed U-shaped sliders 15 are slidably installed on the sliding grooves 14. A connecting hole 17 is provided at one end of the U-shaped slider 15 away from the sliding groove 14. A medical tape 18 is fixedly inserted into the connecting hole 17. Specifically, after one end of the medical tape 18 passes through the connecting hole 17, the end of the medical tape 18 is bonded to the adhesive surface of the medical tape 18 that does not pass through the connecting hole 17 to form a connecting ring. The end of the U-shaped slider 15 is surrounded in the connecting ring.

[0034] In use, insert the anal tube body 1 into the anus from the head tube 12 until it reaches the limiting ring 13 on the tail tube 11 to prevent the anal tube body 1 from being inserted too deeply, thus ensuring safety. Then, attach the medical tape 18 into the connecting hole 17 on the U-shaped slider 15. Pull the U-shaped slider 15 to make it slide circumferentially on the slide groove 14 to adjust its position and attach the medical tape 18 to different locations on the buttocks. This avoids pulling on the wound, makes it easy to fix, and provides better comfort. Disassembly is simple: just peel the medical tape 18 off from different locations on the buttocks, separate the end of the medical tape 18 from the adhesive surface that has not passed through the connecting hole 17, or directly cut the connecting ring to remove the used medical tape 18 for later replacement with new medical tape 18.

[0035] Two symmetrically arranged connecting sliders 16, adapted to the slide groove 14, are fixedly installed on two opposite surfaces of the inner sidewall of the U-shaped slider 15. The connecting sliders 16 are engaged within the slide groove 14. In use, the connecting sliders 16 on the U-shaped slider 15 are engaged into the slide groove 14. Under a certain external force, the connecting sliders 16 can move circumferentially on the slide groove 14, ensuring that the U-shaped slider 15 does not detach and operates stably. However, when the external force is small, the friction between the connecting sliders 16 and the slide groove 14 can ensure that the connecting sliders 16 will not slide freely within the slide groove 14.

[0036] The maximum outer diameter of both the tail tube 11 and the head tube 12 is greater than the maximum outer diameter of the anal tube body 1. The inner walls of both the tail tube 11 and the head tube 12 are connected to the inner wall of the anal tube body 1, and the maximum inner diameter of both the tail tube 11 and the head tube 12 is the same as the maximum inner diameter of the anal tube body 1.

[0037] The anal canal body 1 is a hollow cylinder; the tail tube 11 is a hollow cylinder; the head tube 12 is a hollow frustum (cone, i.e., truncated cone), with the diameter of the head tube 12 gradually decreasing from the end near the anal canal body 1 to the end away from the anal canal body 1. The ends of the tail tube 11, the anal canal body 1, and the head tube 12 are connected.

[0038] When in use, insert the anal tube body 1 into the anus through one end of the head tube 12. The cone-shaped head tube 12 provides less resistance during insertion, making it easier to enter and causing less stimulation to the anus.

[0039] Example 2

[0040] This embodiment provides a multi-directional adjustable anal canal fixing device, which, based on embodiment 1, further includes the following features:

[0041] The smooth anal canal body 1 may accidentally slip out in the rectum due to secreted intestinal fluid. Therefore, the fixing device also includes an anti-slip mechanism 2.

[0042] The anti-slip mechanism 2 includes a rubber sleeve 21 fitted onto the outer wall of the anal tube body 1. The inner wall of the rubber sleeve 21 is bonded to the outer wall of the anal tube body 1 (only the inner wall of the rubber sleeve 21 corresponding to the air bladder 23 is not bonded to the corresponding outer wall of the anal tube body 1; the inner wall of the rubber sleeve 21 corresponding to the air bladder 23 is formed by the corresponding outer wall of the anal tube body 1). The two ends are respectively abutted against the tail tube 11 and the head tube 12. A ventilation channel 22 is opened in the tail tube 11 and the anal tube body 1, extending from the outer wall of the tail tube 11 toward the outer wall of the anal tube body 1. The two outlets of the ventilation channel 22 are respectively opened on the outer wall of the anal tube body 1 and the outer wall of the tail tube 11. The outlet of the ventilation channel 22 opened on the outer wall of the tail tube 11 is round, while the outlet of the ventilation channel 22 opened on the outer wall of the anal tube body 1 is annular and surrounds the anal tube body 1. An air sac cavity 23 is provided on the inner wall of the rubber sleeve 21 at a position corresponding to the air passage 22 on the outside of the anal tube body 1. The air sac cavity 23 is also annular and corresponds to the outlet of the air passage 22 on the outer wall of the anal tube body 1.

[0043] When in use, the anal tube body 1 with the rubber sleeve 21 is inserted into the anus and rectum. Gas is injected through the air passage 22, and the enclosed air bladder 23 inflates, causing the outer wall of the rubber sleeve 21 to bulge and contact the inner wall of the rectum. This makes the bulge larger than the contraction size of the anal sphincter, so that the anal tube body 1 will not easily slip off. In addition, the soft rubber sleeve 21 causes less discomfort when in contact with the inner wall of the rectum and has good stability.

[0044] A nozzle 24 connected to the vent 22 is fixedly installed on the tailpipe 11 at the port of the vent 22, and a one-way valve 25 is inserted into the nozzle 24.

[0045] The rubber sleeve 21 is an elastic rubber sleeve.

[0046] In use, gas is injected into or extracted from the airway 22 by inserting a syringe into the one-way rubber valve 25, thereby causing the airbag cavity 23 to inflate or deflate (since the inner wall of the rubber sleeve 21 corresponding to the airbag cavity 23 is not bonded to the outer wall of the corresponding anal tube body 1, while the other parts of the rubber sleeve 21 are bonded to the anal tube body 1, and the rubber sleeve 21 has a certain elasticity, the airbag cavity 23 can inflate or deflate), which is convenient to operate.

[0047] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A multi-directional adjustable anal canal fixing device, characterized in that, The multi-directional adjustable anal canal fixing device includes an anal canal body (1), a tail tube (11), a head tube (12), a limiting ring (13), a U-shaped slider (15), and medical tape (18). The tail tube (11) is connected to one end of the anal tube body (1), and the head tube (12) is connected to the other end of the anal tube body (1); The limiting ring (13) is connected to the outer wall of the tail tube (11); The limiting ring (13) is provided with a sliding groove (14), and the U-shaped slider (15) is slidably connected to the sliding groove (14); The U-shaped slider (15) has a connecting hole (17); The medical tape (18) is connected to the connecting hole (17), and the medical tape (18) is used to adhere to the buttocks to fix the multi-directional adjustable anal canal fixation device; The multi-directional adjustable anal canal fixing device also includes an anti-slip mechanism (2); The anti-slip mechanism (2) includes a rubber sleeve (21), which is fitted on the outside of the anal canal body (1); The ends of the rubber sleeve (21) abut against the tail tube (11) and the head tube (12) respectively.

2. The multi-directional adjustable anal canal fixing device according to claim 1, characterized in that, At least three U-shaped sliders (15) arranged in a circumferential direction are slidably connected to the groove (14).

3. The multi-directional adjustable anal canal fixing device according to claim 1, characterized in that, The limiting ring (13) has two opposite surfaces on its outer side wall with sliding grooves (14) provided, and the two sliding grooves (14) are symmetrically arranged. Two symmetrically arranged connecting sliders (16) that are adapted to the slide groove (14) are connected to the two opposite surfaces of the inner sidewall of the U-shaped slider (15). The connecting sliders (16) are engaged in the slide groove (14).

4. The multi-directional adjustable anal canal fixing device according to claim 1, characterized in that, The maximum outer diameter of the tail tube (11) and head tube (12) is greater than the maximum outer diameter of the anal tube body (1).

5. The multi-directional adjustable anal canal fixing device according to claim 1, characterized in that, The anal canal body (1) is cylindrical; The tail tube (11) is cylindrical; The head tube (12) is frustoconical in shape, and the diameter of the head tube (12) gradually decreases from the end near the anal canal body (1) to the end away from the anal canal body (1).

6. The multi-directional adjustable anal canal fixing device according to claim 1, characterized in that, The multi-directional adjustable anal canal fixation device also includes an airway (22); The ventilation duct (22) is located within the anal canal body (1) and the tail tube (11); The two outlets of the ventilation channel (22) are respectively located on the outer side wall of the anal tube body (1) and the outer side wall of the tail tube (11).

7. The multi-directional adjustable anal canal fixing device according to claim 6, characterized in that, An air bladder cavity (23) is provided on the inner wall of the rubber sleeve (21) at a location corresponding to the air passage (22).

8. The multi-directional adjustable anal canal fixing device according to claim 6, characterized in that, The outlet of the vent (22) located on the outer side wall of the tailpipe (11) is connected to a nozzle (24). The air nozzle (24) is connected to the air passage (22).

9. The multi-directional adjustable anal canal fixing device according to claim 8, characterized in that, A one-way valve (25) is connected to the air nozzle (24).