An integrated colonic administration device

Abstract

The utility model relates to the field of medical equipment, and specifically refers to an integrated colon drug delivery device, which integrates drug delivery, irrigation and air bag fixing functions, and contains a double-channel pipe body for precise drug delivery and efficient irrigation, with a porous structure at the front end to ensure uniform distribution of the drug, and an air bag that can be inflated and fixed to the target intestinal segment to prevent pipe body displacement; the innovative design includes: an anti-reflux valve to prevent reflux of intestinal contents, an adjustable silicone anal plug to adapt to different patient anatomical structures, and a standardized interface for easy operation. The device solves the problems of uneven drug distribution and difficulty in fixing in traditional methods, significantly improves the accuracy, safety and patient comfort of local treatment of colon diseases, and is suitable for various clinical scenarios such as ulcerative colitis and intestinal preparation.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to an integrated colonic drug delivery device. Background Technology

[0002] In the treatment of colonic diseases such as ulcerative colitis, Crohn's disease, intestinal infections or tumors, as well as in preoperative bowel preparation, local administration and irrigation are common treatment methods.

[0003] Traditional methods typically rely on enemas, suppositories, or oral medications, but have the following limitations:

[0004] Uneven drug distribution: Enemas or suppositories are difficult to apply precisely to the lesion site, such as the high rectum or sigmoid colon. The drug is easily diluted by intestinal fluid or excreted prematurely, affecting the efficacy.

[0005] Difficulty in fixation: Existing catheters lack a reliable fixation mechanism and are prone to displacement due to intestinal peristalsis or patient movement, requiring repeated adjustments to their position and increasing the complexity of the procedure;

[0006] Risk of cross-infection: If irrigation and drug administration share a single channel, it may cause retrograde contamination, especially in patients with weakened immune function.

[0007] Patient discomfort: Traditional anal tubes or enema devices lack adaptable design, which can easily cause damage to the anal sphincter or leakage.

[0008] While some colonic catheters in the current technology are equipped with balloon fixation, such as the modified Foley catheter, they lack integrated design and cannot simultaneously meet the needs of drug administration, irrigation, and reflux prevention. In addition, ordinary catheters lack a leak-proof structure at the anal opening, which can easily lead to leakage of medication or irrigation fluid.

[0009] Therefore, there is an urgent need for a multifunctional integrated device that can achieve precise drug delivery, controllable irrigation, stabilization, and backflow prevention to improve the efficiency and safety of colon disease treatment. Utility Model Content

[0010] The present invention aims to solve the technical problems existing in the prior art and provides an integrated colonic drug delivery device.

[0011] An integrated colonic drug delivery device includes a tube body and an air bladder disposed on the tube body. The tube body is provided with a drug delivery channel and an irrigation channel. The drug delivery channel and the irrigation channel are provided with several through holes communicating with the outside of the tube body at the front end of the tube body. The drug delivery channel and the irrigation channel are provided with connectors at the rear end of the tube body. The irrigation channel is also connected to a connector at the rear end of the tube body via a branch pipe.

[0012] The airbag has an outer side of the tube body, and the airbag is connected to a connector at the tail end of the tube body via an air pipe. The air pipe is located inside the drug delivery channel or irrigation channel.

[0013] Furthermore, an anal plug that can move on the tube is fitted on the tube body between the air bladder and the tail end of the tube body. The anal plug is made of elastic silicone material and has a cotton mesh on its surface.

[0014] Furthermore, an anti-backflow valve is provided at the through-hole position on the drug delivery channel.

[0015] Furthermore, each connector is equipped with a cap.

[0016] Compared with the prior art, the present invention has the following advantages: The present invention has a reasonable structure and integrates drug administration, irrigation and balloon fixation functions, which significantly improves the accuracy, safety and patient tolerance of colonic drug administration and has high clinical practical value.

[0017] This utility model device integrates drug delivery, irrigation and balloon fixation functions into one, reducing the need for multiple intubation operations, improving treatment efficiency and reducing patient discomfort;

[0018] The drug delivery channel and irrigation channel of this invention are designed independently to avoid cross-contamination and ensure accurate drug delivery and intestinal cleansing effect.

[0019] The airbag of this invention can be stably anchored in the target intestinal segment, such as the rectum or sigmoid colon, after inflation, to prevent tube displacement and ensure that the drug can be fully effective in the lesion area. Combined with the adjustable anal plug, it can adapt to different insertion length requirements.

[0020] The drug delivery anti-backflow design of this utility model has an anti-backflow valve at the through hole of the drug delivery channel that can prevent the reflux of intestinal contents, reduce the risk of infection, and also prevent the reflux of the administered drug. It is especially suitable for patients with low immune function and improves the safety of treatment.

[0021] The anal plug of this invention is made of elastic silicone material, which reduces pressure damage to the anal sphincter, and the surface cotton mesh enhances comfort. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an integrated colonic drug delivery device according to the present invention;

[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 yes Figure 1 Enlarged diagram of point B in the middle.

[0025] As shown in the figure: 1. Tube body; 2. Air bladder; 3. Drug delivery channel; 4. Irrigation channel; 5. Through hole; 6. Connector; 7. Branch tube; 8. Air pipe; 9. Anal plug; 10. Cotton mesh; 11. Plug cap. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In the description of the embodiments of this utility model, if a feature is referred to as "setting", "fixing", "connecting", or "installing" on another feature, it can be set, fixed, or connected directly to the other feature, or it can be set, fixed, connected, or installed indirectly on the other feature.

[0029] In the description of the embodiments of this utility model, the term "several" means one or more, and the term "multiple" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number, while the terms "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the number of indicated technical features, or the order of the indicated technical features.

[0030] The following description, with reference to the accompanying drawings, illustrates an embodiment of the present invention: an integrated colonic drug delivery device.

[0031] An integrated colonic drug delivery device includes a tube body 1 and an air bladder 2 disposed on the tube body 1. The tube body 1 is provided with a drug delivery channel 3 and an irrigation channel 4. The drug delivery channel 3 and the irrigation channel 4 are provided with several through holes 5 communicating with the outside of the tube body 1 at the front end of the tube body 1. The drug delivery channel 3 and the irrigation channel 4 are provided with connectors 6 at the rear end of the tube body 1. The irrigation channel 4 is also connected to a connector 6 at the rear end of the tube body 1 via a branch pipe 7.

[0032] The airbag 2 is located on the outside of the tube body 1. The airbag 2 is connected to the end of the tube body 1 via an air pipe 8 and a connector 6 is located in the drug delivery channel 3 or the irrigation channel 4.

[0033] An anal plug 9, which can move on the tube 1, is fitted on the tube 1 between the airbag 2 and the tail end of the tube 1. The anal plug 9 is made of elastic silicone material and has a cotton mesh 10 on its surface.

[0034] An anti-backflow valve is provided at the through hole 5 position on the drug delivery channel 3.

[0035] Each connector 6 is equipped with a cap 11. The standardized connector design, such as a Luer connector, facilitates connection to syringes or irrigation equipment. The cap seal effectively prevents contamination.

[0036] This invention features a dual-channel system: an independent drug delivery channel and an irrigation channel that can be operated simultaneously. The multi-porous design at the front end ensures uniform distribution of the drug / irrigation solution. For example, the irrigation channel can quickly clean the lesion area, while the drug delivery channel enables targeted drug delivery.

[0037] This invention features an airbag fixation mechanism: the airbag expands after being inflated through a built-in air tube and can be anchored in a narrow section of the colon, such as the rectosigmoid junction, to prevent displacement of the tube. When using this invention, it is important to note that the pressure should be adjusted according to the intestinal diameter to avoid the risk of ischemia.

[0038] This invention features an anti-reflux valve: a one-way valve at the through-hole of the drug delivery channel, designed like a duckbill, can prevent the reflux of intestinal contents, reducing the risk of infection. It is especially suitable for immunosuppressed patients or to prevent drug reflux. During drug injection, the connector of the irrigation channel is sealed.

[0039] This utility model features an adjustable anal plug made of elastic silicone material, which is easy to move on the tube. Combined with the surface cotton mesh, it reduces pressure damage to the anal sphincter and can be adjusted to accommodate different patients' anal canal lengths, which are typically 3-4 cm for adults.

[0040] This invention has wide clinical applications and is suitable for scenarios such as local drug administration for ulcerative colitis, preoperative bowel preparation, and radiation enteritis irrigation, thereby improving treatment efficacy and reducing complications.

[0041] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An integrated colonic drug delivery device, characterized in that: The device includes a tube body and an air bladder mounted on the tube body. The tube body is provided with a drug delivery channel and an irrigation channel. The drug delivery channel and the irrigation channel are both provided with several through holes communicating with the outside of the tube body at the front end of the tube body. The drug delivery channel and the irrigation channel are both provided with connectors at the rear end of the tube body. The irrigation channel is also connected to a connector at the rear end of the tube body via a branch pipe. The airbag has an outer side of the tube body, and the airbag is connected to a connector at the tail end of the tube body via an air pipe. The air pipe is located inside the drug delivery channel or irrigation channel.

2. The integrated colonic drug delivery device according to claim 1, characterized in that: An anal plug that can move on the tube is fitted on the tube body between the air bladder and the tail end of the tube body. The anal plug is made of elastic silicone material and has a cotton mesh on its surface.

3. The integrated colonic drug delivery device according to claim 1, characterized in that: The through-hole in the drug delivery channel is equipped with an anti-backflow valve.

4. The integrated colonic drug delivery device according to claim 1, characterized in that: Each connector is equipped with a plug.

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