Leakage-proof colorectal administration device

Abstract

The invention discloses a leakage-proof colorectal administration device. The leakage-proof colorectal administration device comprises an administration tank, a dynamic sealing assembly and an administration plug, the dosing tank is used for storing liquid medicine and pushing the liquid medicine to be output through the matching effect of the piston plate and the plunger rod; the dynamic sealing assembly comprises a medicine injection box, a liquid feeding pipe and an abutting wheel, and the abutting wheel rotates when liquid medicine flows, guides the liquid medicine to smoothly enter the colorectum and is in a closed state when not used, so that the liquid medicine is prevented from flowing back; the dosing plug is inserted into a colorectum opening, a plug head body of the dosing plug is provided with an inner plug ball and a plug sealing part, double limiting and fixing are achieved through inflation and rotation of the expansion plug screw, the inner plug ball is located on the inner side of the colorectum to form internal limiting, the plug sealing part is located on the outer side of the colorectum to form external limiting, and therefore it is guaranteed that the device is stably positioned and effectively sealed, and liquid medicine leakage is prevented. The colorectal administration device is simple in structure and convenient to operate, can improve the safety and stability of colorectal administration, and has a good application prospect.

Description

Technical Field

[0001] The invention relates to the technical field of rectal drug administration, in particular to a leakage-proof rectal drug administration device. Background Art

[0002] Colorectal drug delivery is an important way to treat gastrointestinal diseases, inflammatory bowel disease and some systemic diseases, and is often used for local administration or systemic absorption. However, existing colorectal drug delivery devices have the following problems during use: Drug leakage: Due to the peristaltic characteristics of the intestine and individual differences among patients, traditional drug delivery devices are difficult to effectively fit the colorectal opening, which can easily cause drug leakage and affect drug absorption. In particular, during the delivery process of liquid drugs, affected by intestinal pressure or external environmental factors, reflux or leakage may occur, resulting in drug waste and reduced treatment effects.

[0003] Poor fixation stability: Traditional colorectal drug delivery devices usually use a single limiting structure (such as hard rings, flexible covers, etc.), which is easy to shift or slip due to intestinal movement or external operations during use, affecting the precise release of drugs. Especially when the patient is active or using it for a long time, it is difficult for the device to remain stable, increasing the patient's discomfort and difficulty of use.

[0004] Low efficiency of drug delivery and easy backflow: Some existing colorectal drug delivery devices lack an effective drug flow control mechanism. The drug may flow back into the drug tank under pressure, or the uniformity of drug delivery may be affected due to excessive intracavitary pressure. In particular, when the patient's intestinal peristalsis increases, the drug may not be able to enter the deep intestine smoothly, resulting in reduced drug delivery effect.

[0005] Poor adaptability and difficulty in meeting the needs of different patients: Due to the different physiological structures of individual patients (such as colorectal diameter, tightness, etc.), traditional fixed drug delivery devices are difficult to adjust according to the actual situation of the patients, causing some patients to feel uncomfortable during use, and even need to use additional auxiliary devices for adjustment, affecting the user experience.

[0006] Therefore, in response to the above problems, a leak-proof colorectal drug delivery device is proposed, which improves the sealing, stability and reliability of drug delivery by optimizing the structural design, so as to improve the deficiencies of the existing technology, ensure the accurate release of the drug in the colorectum, and improve the drug delivery effect and patient comfort. Summary of the invention

[0007] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0008] To this end, the technical solution adopted by the present invention is: a leak-proof colorectal drug delivery device, including a drug delivery can, a dynamic sealing component and a drug delivery plug, which is used to achieve precise drug delivery in the colorectum through an expansion sealing structure and a dynamic fluid control component, and effectively prevent the backflow or leakage of the drug solution, thereby improving the safety and stability of drug delivery.

[0009] 1. Medication can The medication tank is used to store liquid medicine, and the liquid medicine is discharged from the tank body through the pushing action of the piston plate.

[0010] A guide cover is arranged at the front end of the medication can, and a pressure wing is arranged on the outer side of the guide cover to provide fixed support during the medication process.

[0011] The plunger rod passes through the guide cover, and its front end is connected to the piston plate. When the plunger rod is pushed in along the axial direction, the piston plate is driven to move forward, thereby pushing the liquid medicine into the dynamic sealing assembly.

[0012] 2. Dynamic sealing components The dynamic sealing component is connected to the front end of the medication tank and is used to guide the medication solution into the medication plug.

[0013] Medicine injection box: connected to the liquid outlet end of the medicine tank to form a medicine liquid channel.

[0014] Liquid feeding tube: one end is connected to the injection box, and the other end leads to the dosing plug, which is used for transferring the liquid medicine. The surface of the liquid feeding tube is provided with screw threads.

[0015] The wheel is set inside the medicine injection box and rotates when the medicine liquid passes through, so as to guide the flow direction of the medicine liquid. At the same time, it forms a closed state when not in use to prevent the medicine liquid from flowing back.

[0016] Injection head: Located at the end of the feeding tube, connected to the dosing plug to ensure that the drug solution enters the colorectum smoothly.

[0017] 3. Drug delivery plug The medication plug is inserted into the colorectal opening and forms a seal to ensure that the medication does not leak out.

[0018] Plug body: used to be inserted into the colorectal opening, with an inner plug ball at the front end, which is positioned inside the colorectum through expansion.

[0019] Sealing part: Located on the outside of the plug body, it can expand and deform by twisting the expansion screw to fit and seal with the colorectal opening.

[0020] Limiting part: It is arranged at the proximal end of the sealing part and fits against the outside of the colorectum after the drug-delivery plug is inserted, forming a limiting effect to prevent the drug-delivery plug from being inserted too deep or slipping out.

[0021] Inflation nozzle: used to inflate and expand the inner plug ball to achieve stable fixation inside the colorectum.

[0022] Connecting pipe: used to connect the inflation system to connect the inside of the inflation structure with the outside to control the inflation state.

[0023] Catheter: Connects the liquid feeding tube and the liquid outlet to allow the liquid to flow from the dynamic sealing component to the colorectum.

[0024] Expansion screw plug: adjust the expansion state of the sealing part by rotating it so that it fits tightly and seals with the colorectal opening, further improving the leak-proof effect.

[0025] Convex screw ridge: set on the outer surface of the expansion screw plug to provide friction for rotation adjustment, making it easy to manually adjust the sealing state.

[0026] Through the above structure, the present invention achieves the accuracy, safety and leakage-proof effect of colorectal drug administration, improves the comfort of patients, and reduces the risk of drug solution backflow.

[0027] The beneficial effects achieved by the present invention are: 1. In the present invention, the inner plug ball expands on the inner side of the colorectum to form an internal limit, and the sealing part expands on the outer side of the colorectum to form an external limit, thereby achieving double positioning, preventing the drug plug from shifting or slipping, and ensuring the complete release of the drug solution. By rotating the expansion screw plug, the sealing part expands and fits the colorectal opening to form an efficient seal, avoid leakage of the drug solution, and improve the safety of drug administration.

[0028] 2. In the present invention, a dynamic sealing component is adopted, in which the wheel rotates when the medicine liquid flows, so that the medicine liquid enters the colorectum smoothly, and at the same time forms a seal on the feeding tube in the non-working state to prevent the excessive pressure in the cavity from causing the medicine liquid to flow back; the fluid guiding structure of the feeding tube and the injection box ensures that the medicine liquid flows in a single direction, thereby improving the stability of the medicine liquid delivery.

[0029] 3. In the present invention, the expansion degree of the inner plug ball is adjusted by the inflation nozzle, so that the medication plug can adapt to the physiological structure of different patients, improve the comfort of use, and adjust the sealing effect by rotation: by twisting the expansion screw plug, the expansion degree of the sealing part can be accurately controlled to ensure reliable sealing and easy adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a dynamic sealing assembly according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a drug delivery plug according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of a drug delivery plug according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the exploded structure of a drug delivery plug according to an embodiment of the present invention.

[0031] Reference numerals: 100, medication tank; 110, guide cover; 120, plunger rod; 111, pressure wing; 121, piston plate; 200, dynamic sealing assembly; 210, injection box; 220, stop wheel; 230, liquid feeding tube; 231, injection head; 300, medication plug; 310, plug body; 320, liquid guide tube; 330, expansion screw plug; 311, inner plug ball; 312, sealing part; 313, limiting part; 314, inflation nozzle; 315, connecting tube; 321, screw thread; 331, convex screw edge. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0033] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0034] The following is combined with Figure 1-Figure 6 A leak-proof colorectal drug delivery device provided by some embodiments of the present invention is described.

[0035] The present invention provides a leakage-proof colorectal medication device, which mainly comprises a medication tank 100, a dynamic sealing component 200 and a medication plug 300.

[0036] 1. Medication tank 100 The medication tank 100 is used to store liquid medicine, and the liquid medicine is discharged from the tank body through the pushing action of the piston plate 121 .

[0037] The front end of the medication tank 100 is provided with a guide cover 110, and the outer side of the guide cover 110 is provided with a pressure wing 111 for providing fixed support during medication. The plunger rod 120 passes through the guide cover 110, and its front end is connected to the piston plate 121. When the plunger rod 120 is pushed in along the axial direction, the piston plate 121 is driven to move forward, thereby pushing the drug solution into the dynamic sealing assembly 200.

[0038] 2. Dynamic seal assembly 200 The dynamic sealing assembly 200 is connected to the front end of the medication can 100 and is used to guide the drug solution into the medication plug 300 .

[0039] Medicine injection box 210: connected to the liquid outlet end of medication tank 100 to form a medicine liquid channel.

[0040] Liquid feeding tube 230: one end is connected to the injection box 210, and the other end leads to the drug delivery plug 300, which is used for transferring the liquid medicine.

[0041] The wheel 220 is arranged inside the injection box 210 and rotates when the liquid medicine passes through, so as to guide the flow direction of the liquid medicine. At the same time, it forms a closed state when not in use to prevent the liquid medicine from flowing back. The injection head 231 is located at the end of the liquid feeding tube 230 and is connected to the drug delivery plug 300 to ensure that the liquid medicine enters the colorectum smoothly.

[0042] 3. Drug delivery plug 300 The medication plug 300 is used to be inserted into the colorectal opening and form a seal to ensure that the drug solution does not leak out. The plug body 310 is used to be inserted into the colorectal opening, and the front end is provided with an inner plug ball 311, which is positioned inside the colorectum through expansion. The sealing part 312 is located outside the plug body 310, and can be expanded and deformed by twisting the expansion screw 330 to fit and seal with the colorectal opening.

[0043] Limiting portion 313: It is arranged at the proximal end of the sealing portion 312, and after the drug delivery plug 300 is inserted, it fits against the outside of the colorectum to form a limiting effect, preventing the drug delivery plug 300 from being inserted too deep or slipping out. Inflation nozzle 314: It is used to inflate, so that the inner plug ball 311 expands, and achieves stable fixation inside the colorectum. Connecting tube 315: It is used to connect the inflation system, so that the inside of the inflation structure is connected with the outside, so as to control the inflation state.

[0044] Liquid feeding tube 230: The liquid feeding tube 230 is connected to the liquid medicine outlet so that the liquid medicine flows from the dynamic sealing component 200 into the colorectum. The surface of the liquid feeding tube 230 is provided with screw threads 321.

[0045] Expansion screw plug 330: By rotating and adjusting the expansion state of the sealing part 312, it can be sealed with the colorectal opening to further improve the leakage prevention effect. Convex screw ridge 331: It is arranged on the outer surface of the expansion screw plug 330 to provide friction for rotation adjustment, so as to facilitate manual adjustment of the sealing state.

[0046] The working principle and use process of the present invention: The present invention relates to a leak-proof colorectal drug delivery device, the core purpose of which is to ensure the stable release of drug solution in the colorectum while preventing leakage. The device mainly includes a drug delivery tank 100, a dynamic sealing component 200, a drug delivery plug 300 and other structures. Through scientific design and precise matching between the components, efficient and safe drug delivery function is achieved.

[0047] Preparation stage: Take out the device and check whether the components are firmly connected; inject the required liquid medicine into the medication tank 100, and ensure that the piston plate 121 is in the initial position.

[0048] Insertion of the medication plug 300: After selecting a suitable position, insert the medication plug 300 into the colorectal opening; inflate the medication plug 300 by connecting the inflation pump to the inflation nozzle 314, so that the inner plug ball 311 expands in the colorectal opening, and at the same time, the limiting part 313 forms a support on the outside of the colorectal opening to achieve stable positioning and prevent the medication plug 300 from falling out.

[0049] Sealing adjustment: by twisting the liquid feeding tube 230, the sealing part 312 expands and fits tightly with the colorectal opening to form a seal to prevent leakage of the liquid medicine.

[0050] Release of liquid medicine: By pushing the plunger rod 120, the piston plate 121 moves forward, so that the liquid medicine enters the liquid feeding tube 230 through the injection box 210; the movement of the liquid medicine drives the wheel 220 to rotate, so that the liquid medicine is released at a uniform speed. At the same time, the wheel 220 forms a sealing effect on the liquid feeding tube 230 to prevent the liquid medicine from flowing back.

[0051] End and take out: After the liquid medicine is released, release the liquid feeding tube 230 to release the sealing state; Release gas through the inflation nozzle 314 to restore the inner plug ball 311 to its original state, making it easy to remove; gently pull out the medication plug 300, clean the equipment and store it properly.

[0052] The present invention ensures effective absorption of the drug solution in the colorectum through the above sealing structure, dynamic fluid guidance and anti-backflow design, while avoiding leakage of the drug solution, thereby improving the safety and stability of drug administration.

[0053] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A leak-proof colorectal drug delivery device, characterized in that: include: A medication tank (100), a dynamic sealing assembly (200) and a medication plug (300), wherein the dynamic sealing assembly (200) is detachably mounted on one end of the medication tank (100) and the other end of the dynamic sealing assembly (200) is detachably connected to the end of the medication plug (300), a guide cover (110) is threadedly connected to the surface of the medication tank (100), a plunger rod (120) is slidably mounted on the inner side of the guide cover (110), and the end of the plunger rod (120) is connected to a piston plate (120) slidably mounted on the inner side of the medication tank (100). 1), a pressure wing (111) is provided on the surface of the guide cover (110), the dynamic sealing assembly (200) comprises a medicine injection box (210), a stopper wheel (220), and a liquid feeding tube (230) located inside the medicine injection box (210) and having two ends connected to the medicine dispensing tank (100) and the medicine dispensing plug (300), the stopper wheel (220) is rotatably mounted on the inside of the medicine injection box (210) and is in sliding contact with the surface of the liquid feeding tube (230), and one end of the liquid feeding tube (230) is connected to a dispensing head (231) fixed to the surface of the medicine injection box (210); The medication plug (300) comprises a plug body (310), a liquid guiding tube (320), and an expansion screw plug (330) rotatably sleeved on the surface of the liquid guiding tube (320); the plug body (310) is an integrally formed structure and comprises an inner plug ball (311), a sealing portion (312), and a limiting portion (313) connected in sequence; the inner sides of the inner plug ball (311) and the limiting portion (313) are both hollow structures, and the inner side of the sealing portion (312) is provided with a plurality of connecting tubes (315) for connecting the inner cavities of the inner plug ball (311) and the limiting portion (313); an inflation nozzle (314) is provided on the surface of the limiting portion (313); a screw thread (321) is provided on the surface of the liquid guiding tube (320); and a convex screw ridge (331) is provided on the surface of the expansion screw plug (330) and is embedded in the inner side of the sealing portion (312).

2. A leak-proof colorectal drug delivery device according to claim 1, characterized in that: A position indicating disk connected to the stop wheel (220) is rotatably mounted on the surface of the medicine injection box (210), and an indicating needle is provided on the surface of the position indicating disk for determining the dosage of medicine according to the rotation amount of the position indicating disk.

3. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: One end of the plunger rod (120) is provided with a pressure plate, and the other end is rotatably connected to the surface of a piston plate (121), and the piston plate (121) is slidably mounted on the inner side of the medication tank (100).

4. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: The outer periphery of the wheel (220) is in interference fit with the surface of the liquid feeding tube (230); the liquid feeding tube (230) is a medical silicone hose structure; and the distance between the outer periphery of the wheel (220) and the inner wall of the injection box (210) is less than or equal to twice the wall thickness of the liquid feeding tube (230).

5. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: A quick-connection port is provided between the injection head (231) port and one end of the liquid guiding tube (320), and is used for quick disassembly and assembly between the liquid guiding tube (320) and the injection head (231).

6. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: The plug body (310) is a rubber material component, and the inner plug ball (311) and the limit portion (313) are expanded by injecting air through an inflation nozzle (314), and a one-way valve core structure is provided inside the inflation nozzle (314).

7. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: The inner side of the sealing portion (312) is provided with a sleeve groove that matches the outer periphery of the expansion screw plug (330) and the convex screw ridge (331), and the inner sleeve groove of the sealing portion (312) is provided with a screw groove that matches the convex screw ridge (331). The expansion screw plug (330) is a conical structure, and the expansion deformation of the sealing portion (312) is achieved by screwing the expansion screw plug (330) in.

8. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: The pitch of the screw thread (321) is the same as the pitch of the convex screw ridge (331); one end of the screw thread (321) penetrates the plug body (310) and is fixedly connected to one side of the inner plug ball (311).

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