Rectal administration device for digestive system department

Abstract

The utility model discloses a rectal dosing device for digestive internal medicine, including injection needle cylinder, the end of injection needle cylinder is provided with dosing pipe, one end of dosing pipe is fixed with the connecting pipe, the connecting pipe is twisted and is connected with injection needle cylinder, the inside of connecting pipe is provided with dosing check valve mechanism, the surface of dosing pipe is equipped with lubricating mechanism, dosing check valve mechanism includes: check valve subassembly and resettable rotating subassembly, the utility model discloses when pushing injection liquid, pressure pushes check valve plate and opens the passageway around fixed plate, and injection liquid flows into dosing pipe through the connecting pipe, and after pushing injection ends, torsional spring drive check valve plate resets, sealing washer and connecting pipe inner wall closely fit, form seal, completely prevent injection liquid from dosing pipe backflow to injection needle cylinder, ensure that the predetermined dose medicine all acts on the intestinal tract, avoid the drug efficacy because of backflow loss.

Description

Technical Field

[0001] This utility model belongs to the field of rectal drug delivery technology in gastroenterology, and specifically relates to a rectal drug delivery device for gastroenterology. Background Technology

[0002] A rectal delivery device, commonly used in gastroenterology, is a medical device that delivers medication into the rectum or colon through the anus for local or systemic treatment. A rectal delivery device typically consists of a syringe and a delivery tube inserted into the rectum. Most existing rectal delivery devices have a hollow internal structure in the delivery tube to allow the medication to flow into the patient's rectum. However, because some patients cannot lie prone for administration, and when lying on their side, the lack of a check valve in the delivery tube can cause backflow after injection. This can prevent the medication from reaching the target site according to the intended dosage and route, thus affecting drug absorption and efficacy. Utility Model Content

[0003] The purpose of this invention is to provide a rectal medication applicator for gastroenterology, in order to solve the problem mentioned in the background art that the medication tube does not have a structure to prevent backflow of medication.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rectal medication applicator for gastroenterology, comprising an injection syringe, an administration tube at one end of the injection syringe, a connecting tube fixed at one end of the administration tube, the connecting tube being screwed into the injection syringe, an administration check mechanism inside the connecting tube, and a lubrication mechanism sleeved on the surface of the administration tube, the administration check mechanism comprising: a check component and a resettable rotatable component.

[0005] Preferably, the check valve assembly includes a fixing plate fixed inside the drug delivery tube and check valves symmetrically arranged at both ends of the fixing plate.

[0006] Preferably, the surface of the check plate is fixed with a sealing ring that fits against the inner wall of the connecting pipe.

[0007] Preferably, the resettable rotating assembly includes connecting slots symmetrically formed at both ends of the fixed plate and connecting blocks symmetrically fixed at the ends of the check plate, wherein the connecting blocks are engaged with the connecting slots.

[0008] Preferably, the inner wall of the connecting groove is symmetrically provided with a rotating groove, the two sides of the connecting block are symmetrically fixed with rotating blocks, the rotating blocks are rotatably connected to the rotating groove, and a torsion spring is provided in the end of the rotating block.

[0009] Preferably, the other end of the drug delivery tube has multiple leakage control holes.

[0010] Preferably, the lubrication mechanism includes a lubrication sleeve fitted onto the surface of the administration tube.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] When the medication is injected, the pressure pushes the check plate to rotate around the fixed plate to open the channel. The medication flows into the administration tube through the connecting tube. After the injection is completed, the torsion spring drives the check plate to reset. The sealing ring fits tightly against the inner wall of the connecting tube to form a seal, completely preventing the medication from flowing back from the administration tube to the syringe. This ensures that the predetermined dose of medication acts entirely on the intestine and avoids loss of efficacy due to backflow. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the connecting pipe of this utility model;

[0015] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0016] Figure 4 In this utility model Figure 1 Enlarged view of point B;

[0017] Figure 5 This is a schematic diagram of the lubrication sleeve structure of this utility model;

[0018] In the diagram: 1. Injection syringe; 2. Drug delivery tube; 3. Connecting tube; 100. Fixing plate; 101. Check valve; 200. Sealing ring; 300. Connecting groove; 301. Connecting block; 400. Rotary groove; 401. Rotary block; 402. Torsion spring; 500. Drainage control hole; 600. Lubrication sleeve. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 5 This utility model provides a technical solution: a rectal administration device for gastroenterology, including an injection syringe 1, an administration tube 2 at the end of the injection syringe 1, a connecting tube 3 fixed at one end of the administration tube 2, the connecting tube 3 being screwed into the injection syringe 1, an administration check mechanism inside the connecting tube 3, and a lubrication mechanism on the surface of the administration tube 2. The administration check mechanism includes a check component and a resettable rotating component.

[0021] In this embodiment, preferably, the check valve assembly includes a fixing plate 100 fixed inside the drug delivery tube 2 and check valves 101 symmetrically arranged at both ends of the fixing plate 100 to realize unidirectional flow of the drug solution.

[0022] In this embodiment, preferably, a sealing ring 200 that fits against the inner wall of the connecting pipe 3 is fixed on the surface of the check plate 101.

[0023] In this embodiment, preferably, the reversible rotating component includes connecting grooves 300 symmetrically opened at both ends of the fixed plate 100 and connecting blocks 301 symmetrically fixed at the ends of the check plate 101, with the connecting blocks 301 engaging with the connecting grooves 300.

[0024] In this embodiment, preferably, the inner wall of the connecting groove 300 is symmetrically provided with a rotating groove 400, and the two sides of the connecting block 301 are symmetrically fixed with rotating blocks 401. The rotating blocks 401 are rotatably connected to the rotating groove 400. A torsion spring 402 is provided in the end of the rotating block 401 so that the check plate 101 can automatically open and close according to the pressure of the liquid medicine.

[0025] In this embodiment, preferably, the other end of the drug delivery tube 2 is provided with multiple flow control holes 500. The drug solution flows out through the multiple holes in a dispersed manner, reducing the flow rate by 30%-50% and avoiding the impact of traditional single-hole direct injection on the rectal mucosa. The multi-directional diversion allows the drug solution to be evenly coated on the intestinal wall, expanding the contact area. For example, when treating hemorrhoids, it can more comprehensively cover the lesion, while reducing the feeling of heaviness and drug overflow.

[0026] In this embodiment, preferably, the lubrication mechanism includes a lubrication sleeve 600 fitted onto the surface of the administration tube 2. The lubrication sleeve 600 is made of skin-friendly medical silicone material and pre-coated with lubricant. When inserted, it reduces the frictional resistance of the anal sphincter, significantly reducing patient pain and resistance. It is especially suitable for children, patients with sensitive anus, or postoperative patients.

[0027] The working principle and usage process of this utility model are as follows: First, the medication is drawn into the syringe 1. Then, the connecting tube 3 and the administration tube 2 are screwed together with the syringe 1. Next, a lubricating sleeve 600 is placed on the surface of the administration tube 2. The administration tube 2 is then inserted into the patient's rectum, with the lubricating sleeve 600 providing lubrication for smoother insertion and reduced pain. Then, the plunger of the syringe 1 is pushed, causing the medication inside to be forced into the connecting tube 3 under pressure. The medication is blocked when it is released from the fixing plate 100 and the check plate 101, preventing it from entering the administration tube 2. Continuing to push the syringe 1 causes the check plate 101 to be pushed open under the pressure of the medication, causing the check plate 101 to move the connecting block 301. Inside the connecting groove 300, the rotating block 401 rotates within the groove 400, compressing the torsion spring 402 to deform, thus removing the obstruction and allowing the medication to flow through the connecting tube 3 into the administration tube 2. The outflow control hole 500 at the end of the administration tube 2 limits the outflow rate of the medication to prevent excessive flow from irritating the intestinal mucosa and causing patient discomfort. After all the medication has flowed from the syringe 1 into the administration tube 2 through the connecting tube 3, the rotating block 401, under the action of the torsion spring 402, rotates and resets within the groove 400, causing the check plate 101 to rotate and reset, closing the tube. This also allows the sealing ring 200 to adhere to the inner wall of the connecting tube 3, providing a seal and preventing the medication from flowing back into the connecting tube 3, thus achieving a check valve function.

[0028] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rectal medication applicator for gastroenterology, comprising an injection syringe (1), wherein an administration tube (2) is provided at one end of the injection syringe (1), and a connecting tube (3) is fixed to one end of the administration tube (2), wherein the connecting tube (3) is screwed into the injection syringe (1), characterized in that: The connecting tube (3) is provided with a drug delivery check mechanism inside, and the surface of the drug delivery tube (2) is provided with a lubrication mechanism. The drug delivery check mechanism includes a check component and a resettable rotating component.

2. The rectal medication applicator for gastroenterology according to claim 1, characterized in that: The check valve assembly includes a fixing plate (100) fixed inside the administration tube (2) and check valve plates (101) symmetrically arranged at both ends of the fixing plate (100).

3. A rectal medication applicator for gastroenterology according to claim 2, characterized in that: The surface of the check plate (101) is fixed with a sealing ring (200) that fits against the inner wall of the connecting pipe (3).

4. A rectal medication applicator for gastroenterology according to claim 3, characterized in that: The resettable rotating assembly includes connecting grooves (300) symmetrically opened at both ends of the fixed plate (100) and connecting blocks (301) symmetrically fixed at the ends of the check plate (101), wherein the connecting blocks (301) are engaged with the connecting grooves (300).

5. A rectal medication applicator for gastroenterology according to claim 4, characterized in that: The inner wall of the connecting groove (300) is symmetrically provided with a rotating groove (400), and the two sides of the connecting block (301) are symmetrically fixed with rotating blocks (401). The rotating blocks (401) are rotatably connected to the rotating groove (400), and a torsion spring (402) is provided in the end of the rotating block (401).

6. A rectal medication applicator for gastroenterology according to claim 5, characterized in that: The other end of the drug delivery tube (2) is provided with multiple leakage control holes (500).

7. A rectal medication applicator for gastroenterology according to claim 1, characterized in that: The lubrication mechanism includes a lubrication sleeve (600) fitted onto the surface of the administration tube (2).

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