Rectal administration device
By designing a sponge absorbent component in the rectal delivery device, the problem of patients being unable to maintain a certain posture for extended periods was solved, enabling continuous release of the medication and preventing leakage, thus improving efficacy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, rectal administration is performed via retention enema, which makes it difficult for patients to maintain a specific posture for extended periods, leading to problems such as leakage of the medication and insufficient efficacy.
A rectal medication applicator was designed, using a sponge as an absorbent. Through the cooperation of a delivery tube and a push tube, the sponge is pushed into the rectum to absorb the medication and adhere to the intestinal wall, thereby achieving continuous release of the medication and preventing leakage.
It reduces the amount of medicine used, simplifies the operation, prevents leakage, and improves efficacy.
Smart Images
Figure CN224039769U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rectal administration technical field, especially rectal administration device. BACKGROUND
[0002] Radiation-induced rectal injury is a common complication, and the main treatment options include observation, drug therapy, hyperbaric oxygen therapy, endoscopic therapy, and surgical treatment. Drug therapy is a common treatment method, and the prevention effect of drug protection is also concerned in clinical practice.
[0003] The current common administration method in clinical practice is retention enema, using a syringe and an anal tube to inject the drug. The anal tube is about 20 cm long, and the nurse inserts it into the patient's anus and connects the syringe to inject the drug solution into the rectum. Retention enema using the anal tube requires the patient to lift the anus and maintain a lateral position for 15 to 30 minutes. It is usually difficult for patients to maintain the same position for a long time, and a large amount of drug solution can easily cause defecation reflex, resulting in drug solution leakage and insufficient drug effect.
[0004] Therefore, there are still shortcomings and deficiencies in the prior art. It is a technical problem for those skilled in the art to provide a rectal administration device that is convenient to operate and can reduce the amount of drug solution. UTILITY MODEL CONTENT
[0005] The utility model aims to provide a rectal administration device, which solves the technical problem of the current common administration method in clinical practice, which is retention enema, and the patient usually has difficulty maintaining the same position for a long time, and the drug solution is prone to leakage and the drug effect is insufficient.
[0006] To achieve the above-mentioned purpose, the utility model provides a rectal administration device, which comprises:
[0007] The delivery tube is hollow inside and has openings at both ends. At least part of the delivery tube is used to enter the patient's rectum.
[0008] The suction accessory is used to absorb the drug solution and is movably arranged in the delivery tube. The suction accessory is connected to a traction line.
[0009] The push tube is at least partially located in the delivery tube and is in sliding connection with the delivery tube. The traction line penetrates the push tube.
[0010] When the push tube is pushed from one end of the push tube, the other end of the push tube is in contact with the suction accessory to push the suction accessory into the patient's rectum from the delivery tube.
[0011] The suction accessory is a sponge, and the sponge is a polyvinyl alcohol sponge. The expansion coefficient of the sponge is greater than 2.
[0012] Preferably, the suction accessory is in the shape of a sheet, a cylinder or a cone.
[0013] Preferably, the delivery tube is a plastic hose, the length of the delivery tube is between 70 to 200 mm, the outer diameter of the push tube is smaller than the inner diameter of the delivery tube, and the length of the push tube is greater than the length of the delivery tube.
[0014] Preferably, the end of the delivery tube away from the push tube is rounded.
[0015] Preferably, the end of the delivery tube away from the push tube is in the shape of a bullet or a semicircle.
[0016] Preferably, the end of the delivery tube away from the push tube is provided with a plurality of connecting portions in the shape of petals.
[0017] Preferably, the push tube is externally provided with a dot-shaped or strip-shaped protrusion.
[0018] Preferably, the end of the push tube connected to the delivery tube is provided with a limiting portion for avoiding the push tube from falling off from the delivery tube.
[0019] Preferably, the end of the delivery tube connected to the push tube is externally provided with a holding portion.
[0020] With respect to the above background art, the rectal administration device provided by the present application is convenient to operate, and the patient does not need to keep a specific posture for a long time during use, thereby reducing the operation difficulty; the push tube pushes the suction accessory from the delivery tube into the rectum of the patient, and the suction accessory can contact the intestinal wall and continuously release the liquid medicine after absorbing the liquid medicine, so that the intestinal wall can be covered by only a small amount of liquid medicine, thereby effectively reducing the amount of liquid medicine; the suction accessory after expansion adheres to the intestinal wall to form a physical barrier, which can inhibit the flow of the liquid medicine, thereby preventing the liquid medicine from leaking out. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of the provided drawings.
[0022] Figure 1 FIG. 1 is a structural schematic diagram of a rectal administration device provided by one of the embodiments of the present application;
[0023] Figure 2 FIG. 2 is a front view of the rectal administration device shown in FIG. 1; Figure 1
[0024] Figure 3 FIG. 3 is a sectional view of the rectal administration device shown in FIG. 1; and Figure 1 A cross-sectional view of the rectal administration device shown in the figure;
[0025] Figure 4 As Figure 1 A structure diagram of a delivery tube in the rectal administration device shown in the figure;
[0026] Figure 5 As Figure 1 A structure diagram of a push tube in the rectal administration device shown in the figure;
[0027] Figure 6 As Figure 1 A structure diagram of a suction accessory in the rectal administration device shown in the figure;
[0028] Figure 7 A structure diagram of a rectal administration device provided by another embodiment of the present application;
[0029] Figure 8 As Figure 7 A front view of the rectal administration device shown in the figure;
[0030] Figure 9 As Figure 7 A cross-sectional view of the rectal administration device shown in the figure;
[0031] Figure 10 As Figure 7 A structure diagram of a suction accessory in the rectal administration device shown in the figure.
[0032] Figures 1 to 10 Reference signs: 10, delivery tube; 101, holding part; 102, connecting part; 20, push tube; 201, limiting part; 30, suction accessory; 301, traction line. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Apparently, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.
[0034] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0035] The rectal administration device provided by the present application uses a sponge as a carrier, and can reduce the use amount of liquid medicine and prevent the liquid medicine from leaking out when releasing the liquid medicine to the rectal mucosa.
[0036] Reference should also be made to Figures 1 to 10The rectal administration device comprises a delivery tube 10, a suction accessory 30 and a push tube 20.
[0037] The delivery tube 10 is internally hollow, and both ends of the delivery tube 10 are provided with openings.
[0038] The suction accessory 30 is used for adsorbing the medicine liquid, and is movably arranged in the delivery tube 10.
[0039] The push tube 20 is at least partially located in the delivery tube 10, and the push tube 20 is slidably connected with the delivery tube 10.
[0040] When the push tube 20 is pushed from one end, the other end of the push tube 20 is in contact with the suction accessory 30 to push the suction accessory 30 into the rectum of the patient from the delivery tube 10.
[0041] In use, the delivery tube 10 is first pushed to a specified position in the rectum of the patient, and then the push tube 20 is pushed from one end, the other end of the push tube 20 is in contact with the suction accessory 30 in the delivery tube 10, and the push tube 20 is continuously pushed, so that the suction accessory 30 is pushed into the rectum of the patient from the delivery tube 10.
[0042] In this way, the suction accessory 30 can continuously release the medicine liquid after adsorbing the medicine liquid, and only a small amount of medicine liquid is needed to cover the intestinal wall, thereby reducing the amount of medicine liquid.
[0043] The suction accessory 30 is a sponge, and the sponge is a polyvinyl alcohol sponge.
[0044] Please refer to Figure 3 、 Figure 6 、 Figure 9 and Figure 10The adsorbent 30 can be sheet-like, cylindrical, or conical, but its shape is not limited to these. Specifically, when the adsorbent 30 is cylindrical or conical, it can also be provided with concentric through holes. In addition, one end of the adsorbent 30 can be bullet-shaped or semi-circular. This design makes the end of the adsorbent 30 rounded and smooth, preventing it from puncturing the intestinal wall when it enters the patient's rectum.
[0045] Please refer to this as well. Figures 1 to 10 The delivery tube 10 is a plastic flexible tube with a length between 70 and 200 mm. The outer diameter of the push tube 20 is smaller than the inner diameter of the delivery tube 10, and the length of the push tube 20 is greater than the length of the delivery tube 10, specifically, the length of the push tube 20 is 15-30 mm longer than the length of the delivery tube 10. Additionally, the outer diameter of the delivery tube 10 is no greater than 15 mm, and the length of the sponge is between 50 and 100 mm. After absorbing the medicine, the outer diameter of the sponge can expand to between 20 and 30 mm.
[0046] Please refer to this as well. Figures 1 to 4 , Figures 7 to 9 The end of the delivery tube 10 away from the push tube 20 is rounded. When in use, the end of the delivery tube 10 away from the push tube 20 enters the patient's rectum. The rounded and smooth end of the delivery tube 10 can avoid damage to the inner wall of the patient's rectum when the delivery tube 10 enters the patient's rectum, and the delivery tube 10 is easier to enter the patient's rectum.
[0047] Please refer to this as well. Figures 1 to 4 In one specific embodiment, the end of the conveying pipe 10 away from the push pipe 20 is provided with a plurality of connecting portions 102, which are petal-shaped. The plurality of connecting portions 102 are evenly distributed, and the connecting portions 102 and the conveying pipe 10 form a petal-shaped opening.
[0048] Please refer to this as well. Figures 7 to 9 In another specific embodiment, the end of the delivery pipe 10 away from the push pipe 20 is bullet-shaped or semi-circular.
[0049] Preferably, based on any of the above embodiments, the push tube 20 is provided with dot-shaped or strip-shaped protrusions. Specifically, the dot-shaped or strip-shaped protrusions are located at the tail of the push tube 20, that is, on the side of the push tube 20 away from the delivery tube 10. By providing dot-shaped or strip-shaped protrusions, the friction between the push tube 20 and the palm of the medical staff can be enhanced, preventing slippage and facilitating the operation of pushing the push tube 20.
[0050] Preferably, based on the above embodiments, please also refer to... Figures 1 to 6 The end of the push tube 20 connected to the conveying tube 10 is provided with a limiting part 201 to prevent the push tube 20 from falling out of the conveying tube 10.
[0051] By setting the limiting portion 201, when the push tube 20 slides along the conveying tube 10, the limiting portion 201 can abut against the inner wall of the end portion of the conveying tube 10 to form a limit, thereby avoiding the push tube 20 from separating from the inside of the conveying tube 10.
[0052] Specifically, the limiting portion 201 is connected with the push tube 20, and the diameter of the limiting portion 201 is greater than that of the push tube 20, so that when the push tube 20 slides along the conveying tube 10, the limiting portion 201 can abut against the inner wall of the end portion of the conveying tube 10 to form a limit.
[0053] Preferably, on the basis of the above embodiment, please refer to Figures 1 to 6 The end portion of the conveying tube 10 connected with the push tube 20 is externally provided with a holding portion 101, and the holding portion 101 facilitates the operation of medical staff.
[0054] Specifically, the holding portion 101 is tubular, and the holding portion 101 is concentrically arranged with the conveying tube 10, and the diameter of the holding portion 101 is less than that of the conveying tube 10, so that a stepped portion is formed at the connection between the holding portion 101 and the conveying tube 10, and when the push tube 20 slides along the conveying tube 10, the limiting portion 201 of the push tube 20 can abut against the stepped portion to limit the push tube 20, thereby avoiding the push tube 20 from separating from the inside of the conveying tube 10.
[0055] The detailed use process of the rectal drug delivery device is as follows: medical staff first pushes the conveying tube 10 to a specified position in the rectum of a patient, then holds the rear end of the conveying tube 10 with one hand, holds the rear end of the push tube 20 and fixes the traction line 301 with the other hand, pushes the push tube 20 from one end of the push tube 20, the other end of the push tube 20 contacts and abuts against the suction accessory 30 in the conveying tube 10, continues to push the push tube 20, and the suction accessory 30 is pushed into the rectum of the patient from the inside of the conveying tube 10. After the suction accessory 30 is moved out of the conveying tube 10, the conveying tube 10 and the push tube 20 are discarded, at this time, the traction line 301 of the suction accessory 30 is left outside the body, the anal tube is inserted to start drug delivery, and after the liquid medicine fills the intestinal wall, the suction accessory 30 is wetted to swell and contact the intestinal wall, and after the drug delivery is completed, the sponge can be withdrawn using the traction line 301.
[0056] The rectal drug delivery device is convenient to operate, does not require the patient to maintain a specific posture for a long time during use, and can reduce the operation difficulty; after the suction accessory 30 absorbs the liquid medicine, the suction accessory 30 can contact the intestinal wall and continuously release the liquid medicine, and only a small amount of liquid medicine is needed to cover the intestinal wall, thereby effectively reducing the amount of liquid medicine; the swollen suction accessory 30 adheres to the intestinal wall to form a physical barrier, which can inhibit the flow of liquid medicine, thereby preventing the liquid medicine from leaking out.
[0057] It should be noted that in the present specification, relational terms such as first and second are used only to differentiate one entity from another entity, and do not necessarily require or imply that there is any such actual relationship or order between these entities.
[0058] The principles and implementation modes of the present application are described herein by using specific examples. The above examples are only used to help understand the method and core idea of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application.
Claims
1. A rectal applicator, characterized in that The application relates to a rectal delivery device. The device comprises: a delivery tube (10) which is internally hollow and provided with openings at both ends, and is used at least partially for entering a patient's rectum; a suction accessory (30) which is used for sucking liquid medicine and is movably arranged in the delivery tube (10), and is connected with a traction line (301); a push tube (20) which is arranged at least partially in the delivery tube (10) and is in sliding connection with the delivery tube (10), and the traction line (301) penetrates the push tube (20); 2. The rectal applicator according to claim 1, characterized in that wherein when the push tube (20) is pushed from one end of the push tube (20), the other end of the push tube (20) is in contact with the suction accessory (30) to push the suction accessory (30) from the delivery tube (10) into the patient's rectum.
3. A rectal applicator according to claim 2, characterised in that The suction accessory (30) is a sponge, the sponge is a polyvinyl alcohol sponge, and the expansion coefficient of the sponge is greater than 2.
4. A rectal applicator according to claim 3, characterised in that The suction accessory (30) is in the shape of a sheet, a cylinder or a cone.
5. A rectal applicator according to claim 4, characterised in that The delivery tube (10) is a plastic hose, the length of the delivery tube (10) is between 70 and 200 mm, the outer diameter of the push tube (20) is smaller than the inner diameter of the delivery tube (10), and the length of the push tube (20) is greater than the length of the delivery tube (10).
6. A rectal applicator according to claim 5, characterised in that The end of the delivery tube (10) away from the push tube (20) is roundly arranged.
7. The rectal applicator of claim 5, wherein The end of the delivery tube (10) away from the push tube (20) is in the shape of a bullet head or a semicircle.
8. A rectal applicator according to any one of claims 1 to 7, characterised in that, The end of the delivery tube (10) away from the push tube (20) is provided with a plurality of connecting portions (102), and the connecting portions (102) are in the shape of petals.
9. A rectal applicator according to claim 8, characterised in that The push tube (20) is externally provided with a point-shaped or strip-shaped protrusion.
10. A rectal applicator according to claim 9, characterised in that The end of the push tube (20) connected with the delivery tube (10) is provided with a limiting portion (201) for avoiding the push tube (20) from falling off the delivery tube (10). The end of the delivery tube (10) connected with the push tube (20) is externally provided with a holding portion (101).