Anus medicament feeder

By designing the valve seat and valve core structure of the anal medication delivery device, the problem of backflow of liquid drugs through the anus was solved, achieving accurate and wave-free drug delivery and clean delivery device, thus improving drug administration efficiency.

CN223731927UActive Publication Date: 2025-12-30ZHUJIANG HOSPITAL OF SOUTHERN MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202422846521.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-12-30
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

In the treatment of anorectal diseases, liquid medications are easily squeezed out by the sphincter when injected through the anus, leading to drug backflow and contamination of the delivery device, resulting in a reduction in the amount of medication injected.

Method used

An anal medication delivery device was designed, comprising an syringe, a delivery tube, a valve seat, a valve core, and an elastic element. The valve seat and valve core work together to achieve the sealing and encapsulation of the medication, preventing backflow and contamination.

Benefits of technology

This effectively prevents the medication from leaking out of the anus, ensures accurate and waste-free drug dosage, prevents contamination within the delivery tube, and improves drug administration efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of medical instruments, and particularly relates to an anus medicament feeder which comprises a syringe, a push rod is slidably connected in the syringe, a piston is mounted at one end, located in the syringe, of the push rod, and the inner diameter of the piston is equal to that of the syringe; the medicine feeding tube is fixedly connected to one end, far away from the push rod, of the syringe. Through mutual cooperation of the valve seat, the valve element, the elastic piece, the dosing head and other structures, the anus can be expanded through the dosing head firstly, the anus has an adaptation process, excessive sensitivity of sphincter is avoided, when the sphincter is not completely adapted, the dosing head can temporarily seal the anus, and the dosing head is prevented from blocking the anus when the sphincter is not completely adapted to the anus. Meanwhile, in the sealing process, the valve seat and the valve element can seal the flow guide channel, and the situation that the administration dosage is reduced and the interior of the medicine feeding pipe is polluted due to the fact that external medicine liquid flows back from the medicine outlet and enters the medicine feeding pipe again is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a kind of anus medicine medicine feeder. BACKGROUND

[0002] In clinical treatment, anorectal diseases often need to be internally sent medicine, need to be administered from anus, wherein a large part is inserted into anus in the form of suppository, tablet etc., and in some cases, liquid medicine also needs to be sent medicine, for example, Kaiselu, and when conveying liquid medicine, anus will have instinct rejection to the entry of foreign matter, under the extrusion of sphincter and intestinal tract, the medicine injected goes in is easily extruded, cause liquid backflow, not only cause medicine injection amount to decrease, and also will contaminate medicine feeder, for this, we propose a kind of anus medicine medicine feeder. UTILITY MODEL CONTENT

[0003] The utility model aims at solving one of the technical problems in prior art or related art.

[0004] Therefore, the technical scheme adopted by the utility model is as follows:

[0005] An anus medicine medicine feeder, comprising:

[0006] An injection cylinder, a push rod is slidably connected inside the injection cylinder, a piston is installed at one end of the push rod inside the injection cylinder, and the piston is equal in diameter to the injection cylinder;

[0007] A medicine delivery tube, the medicine delivery tube is fixedly connected at one end of the injection cylinder away from the push rod, a medicine delivery head is detachably installed at the end of the medicine delivery tube, a flow guide channel is formed inside the medicine delivery head, and the flow guide channel and the medicine delivery tube are mutually penetrated;

[0008] A support rod, the support rod is fixedly connected on the inner wall of the flow guide channel, a support plate is slidably connected on the support rod, a valve core is fixedly connected on the side wall of the support plate, a valve seat is fixedly connected on the inner wall of the flow guide channel, and the valve seat and the valve core are mutually adapted.

[0009] Based on the above technical scheme, its use principle and generated technical effects are as follows:

[0010] When the patient needs to be administered, the administration head is first removed, the push rod and the piston are pulled, a vacuum is formed inside the syringe, the medicine is sucked into the syringe for storage, then the administration head is installed on the medicine delivery pipe, the push rod is pushed to drive the piston to extrude the medicine in the syringe, the medicine will enter the flow guide channel through the medicine delivery pipe and extrude the valve seat, at this time the valve seat will be separated from the second opening formed on the valve core, then the medicine will flow into the first opening through the second opening and the third opening, and then be discharged through the medicine outlet, that is, the administration operation is completed, and after the administration is completed, the medicine stops extruding the valve core, at this time the elastic member applies an elastic force to the valve core, so that the valve core is clamped into the second opening of the valve seat, that is, the valve seat is sealed, so as to avoid the backflow of the discharged medicine from the medicine outlet into the medicine delivery pipe again, causing the dose of the medicine to be reduced and the inside of the medicine delivery pipe to be contaminated.

[0011] The utility model discloses in a preferable example can be further configured as: the medicine delivery pipe and the syringe are mutually through.

[0012] The utility model discloses in a preferable example can be further configured as: the medicine delivery pipe adopts the plastic material quality to make, and the administration head adopts the rubber material quality to make.

[0013] The utility model discloses in a preferable example can be further configured as: the end of administration head is equipped with the medicine outlet, and the center position of support plate is equipped with the first opening that is matched with medicine outlet.

[0014] The utility model discloses in a preferable example can be further configured as: the end of valve core is set to the conical surface, and the center position of valve seat is equipped with the second opening that is matched with valve core.

[0015] The utility model discloses in a preferable example can be further configured as: the both sides of valve core are equipped with the third opening.

[0016] The utility model discloses in a preferable example can be further configured as: the outer surface of support rod is equipped with the elastic member, and one end of elastic member is connected with the lateral wall of flow guide channel, and the other end is connected with support plate.

[0017] The nouns, conjunctions or adjectives involved in the above technical solutions are explained as follows:

[0018] Fixed connection refers to the connection of parts or components after being fixed without any relative movement. It is divided into detachable connection and non-detachable connection.

[0019] (1) The detachable connection is to fix the parts together by using screws, splines, wedge pins, etc. This connection mode can be disassembled during maintenance and will not damage the parts. However, the specifications of the connecting parts used must be correct (such as the length of the bolt, key, wedge pin), and the fastening should be appropriate.

[0020] (2) Non-removable connections mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxy-acetylene cutting for repair or replacement, these parts generally cannot be reused. Furthermore, attention should be paid to process quality, technical inspection, and remedial measures (such as correction and polishing) during connection.

[0021] A movable connection refers to a connection in which parts or components are fixed but have relative motion.

[0022] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0023] In this invention, the coordinated structure of the valve seat, valve core, elastic element, and drug delivery head allows the anus to be dilated first, enabling an adaptation process and preventing oversensitivity of the sphincter. Before the sphincter has fully adapted, the drug delivery head can temporarily seal the anus, preventing the medication from flowing out and being wasted. Simultaneously, during the sealing process, the valve seat and valve core seal the flow channel, preventing external medication from flowing back into the delivery tube from the outlet, thus reducing the dosage and contaminating the inside of the delivery tube. Attached Figure Description

[0024] Figure 1 This is a first-view perspective three-dimensional schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a two-dimensional schematic diagram of the overall structure of this utility model from a second perspective;

[0026] Figure 3 This is a side view of the overall structure of this utility model;

[0027] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0028] Figure label:

[0029] 1. Syringe; 2. Push rod; 3. Piston; 4. Drug delivery tube; 5. Drug delivery head; 6. Flow guide channel; 7. Support rod; 8. Support plate; 9. Valve core; 10. Valve seat; 11. Drug outlet; 12. First opening; 13. Second opening; 14. Third opening; 15. Elastic element. Detailed Implementation

[0030] With reference to the drawings of the embodiments of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present disclosure. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0031] According to the concept of the present application, embodiments of an anal medicine delivery device for delivering anal medicine are described herein. Figures 1 to 4 Specifically, the anal medicine delivery device is configured as an integrated structure, which has three components, namely, an injection barrel 1, a medicine delivery tube 4, and a support rod 7. Through the cooperation of the valve seat 10, the valve core 9, the elastic member 15, the medicine delivery head 5, and other structures, the medicine delivery head 5 can first dilate the anus, allowing the anus to have an adaptation process, avoiding the over-sensitivity of the sphincter muscle. When the sphincter muscle has not fully adapted, the medicine delivery head 5 can temporarily seal the anus, avoiding the waste of medicine flowing out of the anus. At the same time, during the sealing process, the valve seat 10 and the valve core 9 seal the flow channel 6, preventing external medicine from flowing back into the medicine delivery tube 4 from the medicine outlet 11, reducing the medicine dose, and polluting the inside of the medicine delivery tube 4.

[0032] In combination with Figures 1-4 The anal medicine delivery device provided by the present disclosure comprises:

[0033] The injection barrel 1 is internally connected with a push rod 2. One end of the push rod 2 inside the injection barrel 1 is provided with a piston 3. The piston 3 has the same inner diameter as the injection barrel 1.

[0034] The medicine delivery tube 4 is fixedly connected to one end of the injection barrel 1 away from the push rod 2. The end of the medicine delivery tube 4 is detachably provided with a medicine delivery head 5. The medicine delivery head 5 is internally provided with a flow channel 6, which is in communication with the medicine delivery tube 4.

[0035] The support rod 7 is fixedly connected to the inner wall of the flow channel 6. The support rod 7 is slidably connected with a support plate 8. The support plate 8 is fixedly connected with a valve core 9 on the side wall. The inner wall of the flow channel 6 is fixedly connected with a valve seat 10. The valve seat 10 and the valve core 9 are adapted to each other.

[0036] According to the technical scheme of the embodiment, the medicine delivery tube 4 and the medicine delivery head 5 are detachably connected through threads, and the embodiment is not limited in this regard, and the medicine delivery tube 4 and the injection cylinder 1 are in communication with each other, and when the medicine delivery head 5 is removed, the push rod 2 and the piston 3 are pulled to form a vacuum in the injection cylinder 1, so that the medicine is sucked into the injection cylinder 1 for storage.

[0037] Further, the medicine delivery tube 4 is made of plastic, the medicine delivery head 5 is made of rubber, and the two ends of the medicine delivery head 5 are chamfered to make the medicine delivery head 5 smooth, avoiding damage to the patient during medicine delivery.

[0038] According to the technical scheme of the embodiment, the end of the medicine delivery head 5 is provided with a medicine outlet 11, and the center of the support plate 8 is provided with a first opening 12 matched with the medicine outlet 11, and the medicine flows out of the first opening 12 and is discharged from the medicine outlet 11.

[0039] According to the technical scheme of the embodiment, the end of the valve core 9 is provided with a tapered surface, and the center of the valve seat 10 is provided with a second opening 13 matched with the valve core 9, and the two sides of the valve core 9 are provided with third openings 14, when the push rod 2 is pushed to extrude the medicine in the injection cylinder 1, the medicine enters the flow channel 6 through the medicine delivery tube 4 and extrudes the valve seat 10, at this time the valve seat 10 is separated from the second opening 13 of the valve core 9, then the medicine flows into the first opening 12 through the second opening 13 and the third opening 14, and is discharged through the medicine outlet 11.

[0040] According to the technical scheme of the embodiment, the outer surface of the support rod 7 is provided with an elastic member 15, one end of the elastic member 15 is connected with the side wall of the flow channel 6, and the other end is connected with the support plate 8, the elastic member 15 is used to provide elastic potential energy for the support plate 8 and the valve core 9, when the medicine stops extruding the valve core 9 after the medicine delivery is completed, the elastic member 15 applies elastic force to the valve core 9, so as to drive the valve core 9 to be clamped into the second opening 13 of the valve seat 10, so as to realize sealing with the valve seat 10, avoiding backflow of the discharged medicine from the medicine outlet 11 into the medicine delivery tube 4.

[0041] Specifically, when the patient needs to be dosed, first remove the dosing head 5, pull the push rod 2 and the piston 3, so that the inside of the syringe 1 forms a vacuum, that is, the liquid medicine is sucked into the syringe 1 for storage, then the dosing head 5 is installed on the medicine delivery tube 4, the push rod 2 is pushed to drive the piston 3 to extrude the liquid medicine in the syringe 1, the liquid medicine will enter the flow channel 6 through the medicine delivery tube 4 and extrude the valve seat 10, at this time the valve seat 10 will be separated from the second opening 13 on the valve core 9, then the liquid medicine will flow into the first opening 12 through the second opening 13 and the third opening 14, and then be discharged through the medicine outlet 11, that is, the dosing operation is completed, and after the dosing is completed, the liquid medicine stops extruding the valve core 9, at this time the elastic member 15 will exert an elastic force on the valve core 9, thereby driving the valve core 9 to be clamped into the second opening 13 of the valve seat 10, that is, the valve core 9 and the valve seat 10 are sealed, so as to avoid the discharged liquid medicine from flowing back into the medicine delivery tube 4 from the medicine outlet 11 position, causing the dosing dose to be reduced and the inside of the medicine delivery tube 4 to be contaminated.

[0042] The anus medicine delivery device provided by the present application will be further described below in combination with the drawings and embodiments.

[0043] An anus medicine delivery device, comprising:

[0044] A syringe 1, a push rod 2 is slidably connected inside the syringe 1, one end of the push rod 2 inside the syringe 1 is provided with a piston 3, and the piston 3 is equal in diameter to the syringe 1;

[0045] A medicine delivery tube 4, the medicine delivery tube 4 is fixedly connected to one end of the syringe 1 away from the push rod 2, and a dosing head 5 is detachably installed at the end of the medicine delivery tube 4, the inside of the dosing head 5 is provided with a flow channel 6, and the flow channel 6 and the medicine delivery tube 4 are mutually penetrated;

[0046] A support rod 7, the support rod 7 is fixedly connected to the inner wall of the flow channel 6, a support plate 8 is slidably connected to the support rod 7, a valve core 9 is fixedly connected to the side wall of the support plate 8, a valve seat 10 is fixedly connected to the inner wall of the flow channel 6, and the valve seat 10 and the valve core 9 are mutually adapted.

[0047] The working principle and use process of the utility model: when it is needed to give medicine to the patient, first, the medicine giving head 5 is taken off, the push rod 2 and the piston 3 are pulled, a vacuum is formed in the injection cylinder 1, the medicine liquid can be sucked into the injection cylinder 1 for storage, then the medicine giving head 5 is installed on the medicine sending pipe 4, the push rod 2 drives the piston 3 to extrude the medicine liquid in the injection cylinder 1, the medicine liquid will enter the flow guide channel 6 through the medicine sending pipe 4 and extrude the valve seat 10, at this time, the valve seat 10 will be separated from the second opening 13 on the valve core 9, then the medicine liquid will flow into the first opening 12 through the second opening 13 and the third opening 14, then is discharged through the medicine outlet 11, the medicine giving operation can be completed, and after the medicine giving is completed, the medicine liquid stops extruding the valve core 9, at this time, the elastic member 15 will apply elastic force to the valve core 9, so as to drive the valve core 9 to be clamped into the second opening 13 of the valve seat 10, that is, the valve core 9 can realize sealing with the valve seat 10, so that the backflow of the discharged medicine liquid from the medicine outlet 11 into the medicine sending pipe 4 again is avoided, the medicine dose is reduced and the inside of the medicine sending pipe 4 is polluted.

[0048] In the utility model, the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited. The term "and / or" used in this paper includes any and all combinations of one or more related listed items. The terms "mounting", "connection", "connection", "fixing" and other terms should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0049] It should be noted that when an element is referred to as "assembled", "mounted", "fixed" or "provided" to another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or a middle element can exist at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this paper are only for illustrative purposes, not the only embodiment.

[0050] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like 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 utility model. In this specification, the illustrative description 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.

[0051] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. An anal medicine administering device characterized by comprising: Include: Injection cylinder (1), the inside sliding connection of injection cylinder (1) has push rod (2), push rod (2) is installed with piston (3) at one end inside injection cylinder (1), and piston (3) is equal with the inside diameter of injection cylinder (1); Send medicine pipe (4), send medicine pipe (4) fixedly connected at the end of injection cylinder (1) away from push rod (2), the end of send medicine pipe (4) can be detachably installed with administration head (5), the inside of administration head (5) is provided with flow guide channel (6), and flow guide channel (6) and send medicine pipe (4) are mutually penetrated; Supporting rod (7), supporting rod (7) is fixedly connected on the inner wall of flow guide channel (6), the sliding connection of supporting rod (7) has supporting plate (8), the fixed connection of supporting plate (8) side wall has valve core (9), the fixed connection of flow guide channel (6) inner wall has valve seat (10), valve seat (10) and valve core (9) are mutually adapted.

2. The rectal medicine administering device according to claim 1, wherein The send medicine pipe (4) and injection cylinder (1) are mutually penetrated.

3. The anal medicine administering device according to claim 2, wherein The send medicine pipe (4) is made of plastic material, and the administration head (5) is made of rubber material.

4. The rectal medicine administering device according to claim 2, wherein The end of the administration head (5) is provided with a medicine outlet (11), and the center of the supporting plate (8) is provided with a first opening (12) matched with the medicine outlet (11).

5. The anal medicine administering device according to claim 4, wherein The end of the valve core (9) is provided with a tapered surface, and the center of the valve seat (10) is provided with a second opening (13) matched with the valve core (9).

6. The anal medicine administering device according to claim 5, wherein The two sides of the valve core (9) are provided with third openings (14).

7. The anal medicine administering device according to claim 1, wherein The outer surface of the supporting rod (7) is provided with an elastic member (15), one end of the elastic member (15) is connected with the side wall of the flow guide channel (6), and the other end is connected with the supporting plate (8).