A leak-proof enema device
By designing a leak-proof enema device and utilizing a one-way valve structure between the piston and the piston hole, the problem of enema fluid leakage was solved, achieving effective sealing of the enema fluid, preventing contamination and inaccurate dosage, and improving the reliability of treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAOGAN FIRST PEOPLES HOSPITAL
- Filing Date
- 2024-12-06
- Publication Date
- 2026-05-26
AI Technical Summary
Existing enema methods often result in leakage of the enema solution, especially in elderly patients with relaxed anal sphincter function. This can lead to staining of bed sheets and perianal skin, increasing the risk of complications such as eczema.
Design a leak-proof enema device that uses a frustum-shaped shell, piston and spring structure. By utilizing the fit between the piston and piston hole and the baffle design, a one-way valve effect is formed, ensuring that the enema fluid can only enter the anus from the injection port side. After injection, the piston cannot flow back under the action of the baffle, preventing liquid leakage.
It effectively prevents the backflow of enema fluid, reduces environmental pollution, improves the leak-proof performance of the device, and ensures the standardization and accuracy of treatment.
Smart Images

Figure CN224269841U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a leak-proof enema device. Background Technology
[0002] Enema is a technique in which a certain amount of liquid is instilled into the colon through the rectum from the anus to help patients cleanse their intestines, defecate, expel gas, or deliver medication through the intestines, in order to achieve diagnostic and treatment purposes.
[0003] Current enema methods typically involve using an enema bag connected to an enema tube, which is inserted 10-15 cm into the patient's rectum. The patient is instructed to tighten their anus to prevent leakage of the enema solution. The goal is to achieve a certain pressure level within the rectum, causing the enema solution to flow back up to the descending colon level, thus cleansing the intestines and administering medication. However, some elderly patients with loose anal sphincter muscles have difficulty tightening their anus, leading to leakage of the enema solution, staining bed sheets and perianal skin, and potentially causing complications such as eczema.
[0004] Existing enema methods, which involve directly inserting the enema tube into the rectum, are prone to leakage of the enema fluid, resulting in poor leak-proof performance. Utility Model Content
[0005] This utility model provides a leak-proof enema device that solves the problem of poor leak prevention in existing technologies. The technical solution is as follows:
[0006] A leak-proof enema device includes: a housing, a piston, and a spring.
[0007] The outer shell has a frustum-shaped structure, including a top surface and a bottom surface, the area of which is smaller than that of the bottom surface. An enema port is provided on the top surface, and an injection port is provided on the bottom surface. A cavity is provided inside the outer shell, and both the enema port and the injection port are connected to the cavity. A horizontal partition is provided inside the cavity, and a piston hole is provided on the partition. The piston is slidably disposed in the piston hole. A baffle is provided at the bottom of the partition to prevent the piston from moving from the piston hole toward the side closer to the injection port. One end of the spring is connected to the bottom of the piston, and a bracket is provided inside the injection port. The other end of the spring is connected to the bracket.
[0008] Optionally, the bracket includes a support disk and a plurality of fixing rods. The support disk is arranged horizontally, and one end of each fixing rod is fixed to the side of the support disk, while the other end is fixed to the inner wall of the injection port. The plurality of fixing rods are evenly spaced along the circumference of the support disk.
[0009] Optionally, a leak-proof ring is provided between the piston and the piston bore, and the leak-proof ring is in contact with the piston bore.
[0010] Optionally, the baffle is provided with a limiting protrusion, and the bottom of the piston is provided with a limiting groove that matches the limiting protrusion.
[0011] Optionally, the side of the outer casing is an inwardly concave arc surface.
[0012] Optionally, the housing is provided with a wing-shaped handle on the side near the bottom surface.
[0013] Optionally, it also includes an enema bag, a regulating valve, a drip tube, a diffuser, and an infusion tube. The enema bag, the regulating valve, the drip tube, and the diffuser are connected in sequence via the infusion tube, and one end of the diffuser is detachably connected to the injection port.
[0014] Optionally, it also includes an end cap, which is detachably connected to the injection port.
[0015] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:
[0016] This utility model provides a leak-proof enema device. The enema port side of the outer shell is inserted into the patient's anus, and enema fluid is injected from the injection port side. Under the pressure of the enema fluid, the spring stretches, and the piston slides towards the enema port side, causing the piston to separate from the piston hole and form a gap. At this time, the enema fluid can smoothly flow through the piston hole into the enema port side and enter the patient's anus. After the enema fluid injection is completed, the enema fluid in the patient's body will flow back. At this time, the piston returns to the piston hole under the pressure from the enema port side. Under the action of the baffle, the piston cannot continue to move towards the injection port side, preventing the enema fluid from flowing back to the injection port side. This prevents the enema fluid from leaking out of the outer shell and polluting the surrounding environment, effectively solving the problem of poor leak-proof performance in the prior art. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model;
[0019] Figure 2 This is a cross-sectional view of the overall structure provided in an embodiment of the present utility model;
[0020] Figure 3 This is provided by the embodiment of the present utility model. Figure 2Enlarged view of point A;
[0021] Figure 4 This is a cross-sectional schematic diagram of the shell provided in an embodiment of the present utility model;
[0022] Figure 5 This is a cross-sectional schematic diagram of the piston provided in an embodiment of the present invention.
[0023] In the diagram: 1-Outer shell; 11-Top surface; 111-Enema port; 12-Bottom surface; 121-Injection port; 13-Cavity; 14-Partition plate; 141-Piston hole; 15-Baffle plate; 151-Limiting protrusion; 16-Bracket; 161-Supporting disc; 162-Fixing rod; 2-Piston; 21-Limiting groove; 3-Spring; 4-Leak-proof ring; 5-Wing-shaped handle; 61-Enema bag; 62-Regulating valve; 63-Drip tube; 64-Expanding tube; 65-Infusion tube; 7-End cap. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0025] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model; Figure 2 This is a cross-sectional view of the overall structure provided in an embodiment of the present utility model; Figure 3 This is provided by the embodiment of the present utility model. Figure 2 Enlarged view of point A; Figure 4 This is a cross-sectional schematic diagram of the shell provided in an embodiment of the present utility model; Figure 5 This is a cross-sectional schematic diagram of the piston provided in an embodiment of this utility model. (See attached diagram.) Figures 1 to 5 The leak-proof enema device shown includes: a shell 1, a piston 2, and a spring 3. The shell 1 has a frustum-shaped structure and includes a top surface 11 and a bottom surface 12. The area of the top surface 11 is smaller than that of the bottom surface 12. An enema port 111 is provided on the top surface 11, and an injection port 121 is provided on the bottom surface 12. A cavity 13 is provided inside the shell 1. The enema port 111 and the injection port 121 are both connected to the cavity 13. A horizontal partition 14 is provided inside the cavity 13. A piston hole 141 is provided on the partition 14. The piston 2 is slidably disposed in the piston hole 141. A baffle 15 is provided at the bottom of the partition 14 to prevent the piston 2 from moving from the piston hole 141 to the side closer to the injection port 121. One end of the spring 3 is connected to the bottom of the piston 2. A bracket 16 is provided inside the injection port 121, and the other end of the spring 3 is connected to the bracket 16.
[0026] Exemplarily, in this embodiment of the invention, the outer shell 1 is made of soft silicone to prevent it from scratching the patient's skin, and the cavity 13 provides a delivery channel for the enema solution. The enema port side 111 of the outer shell 1 is inserted into the patient's anus, and the enema solution is injected through the injection port 121. The bracket 16 provides support for the bottom of the spring 3 and also provides a resetting force for the piston 2, preventing excessive pressure during enema injection that could cause the piston 2 to completely detach from the piston hole 141 and fail to reset. The cooperation between the piston 2 and the piston hole 141 functions as a valve. The addition of the baffle 15 creates a one-way valve between the piston 2 and the piston hole 141, allowing the enema solution to move only from the injection port 121 side to the enema port 111 side, preventing backflow. After the enema solution is injected, the entire device is attached to the patient's buttocks from the bottom 12 side using adhesive tape, allowing the enema solution to fully integrate within the patient's body. After the designated time, the device can be removed, and the patient can expel the enema solution, thus completing the treatment. By designing this structure, it is possible to prevent the enema fluid from flowing back from the injection port 121 after the enema fluid has been injected, thereby improving the leak-proof performance of the device.
[0027] This utility model provides a leak-proof enema device. The enema port 111 side of the outer shell 1 is inserted into the patient's anus. Enema fluid is injected from the injection port 121 side. Under the pressure of the enema fluid, the spring 3 is stretched, and the piston 2 slides towards the enema port 111 side, causing the piston 2 to separate from the piston hole 141, forming a gap. At this time, the enema fluid can smoothly flow through the piston hole 141 into the enema port side and into the patient's anus. After the enema fluid injection is completed, the enema fluid in the patient's body will flow back. At this time, the piston 2 returns to the piston hole 141 under the pressure from the enema port 111 side. Under the action of the baffle 15, the piston 2 cannot continue to move towards the injection port 121 side, preventing the enema fluid from flowing back to the injection port 121 side. This prevents the enema fluid from leaking out of the outer shell 1 and polluting the surrounding environment, effectively solving the problem of poor leak-proof performance in the prior art.
[0028] Optionally, the bracket 16 includes a support disk 161 and a plurality of fixing rods 162. The support disk 161 is arranged horizontally, and one end of each fixing rod 162 is fixed to the side of the support disk 161, and the other end is fixed to the inner wall of the injection port 121. The plurality of fixing rods 162 are evenly spaced around the circumference of the support disk 161.
[0029] For example, in this embodiment of the present invention, four fixing rods 162 are provided. By setting the bracket 16 in this structure, it can provide a stable force point for the spring and allow the enema fluid to smoothly enter the cavity 13 from the injection port 121, thereby minimizing the obstruction of the enema fluid delivery by the bracket 16 and improving the stability of the device operation.
[0030] Optionally, a leak-proof ring 4 is provided between the piston 2 and the piston bore 141, and the leak-proof ring 4 is in contact with the piston bore 141.
[0031] For example, in this embodiment of the present invention, the anti-leakage ring 4 can be made of rubber material. By setting the anti-leakage ring 4, the enema fluid can be prevented from flowing back from the gap at the joint when the piston 2 and the piston hole 141 are engaged. By setting this structure, the anti-leakage performance of the device is further improved.
[0032] Optionally, the baffle 15 is provided with a limiting protrusion 151, and the bottom of the piston 2 is provided with a limiting groove 21 that matches the limiting protrusion 151.
[0033] For example, in this embodiment of the present invention, the baffle 15 can provide a vertical limit for the piston 2. By setting the limiting protrusion 151 and the limiting groove 21 to cooperate, the piston 2 cannot rotate in its circumference. By setting this structure, the piston 2 can be limited to rotate, preventing the enema fluid from leaking out due to the rotation of the piston 2, and further improving the leak-proof performance of the device.
[0034] Optionally, the side of the outer casing 1 is an inwardly concave arc surface.
[0035] For example, in this embodiment of the present invention, by setting the side of the outer shell 1 as an inwardly concave arc surface, the outer shell 1 can be made to fit the shape of the rectum and anal tube and fit tightly, thereby effectively preventing the enema fluid from leaking from the anus during the enema process, avoiding pollution to the surrounding environment, and also reducing the problem of inaccurate dosage of enema fluid due to leakage, ensuring the standardization and effectiveness of enema treatment, thereby further improving the leak-proof performance of the device.
[0036] Optionally, a wing-shaped handle 5 is provided on the side of the outer casing 1 near the bottom surface 12.
[0037] For example, in this embodiment of the present invention, by providing a wing-shaped handle 5, medical staff can easily operate the device by holding the handle 5. The shape of the wing-shaped handle 5 is also more in line with the structure of the human body, making it easier for the device to be lifted by the patient, thereby improving the ease of operation of the device.
[0038] Optionally, it also includes an enema bag 61, a regulating valve 62, a drip tube 63, a diffuser tube 64, and an infusion tube 65. The enema bag 61, the regulating valve 62, the drip tube 63, and the diffuser tube 64 are connected in sequence through the infusion tube 65. One end of the diffuser tube 64 is detachably connected to the injection port 121.
[0039] Exemplarily, in this embodiment of the invention, the infusion tube 65 serves as the delivery channel for the enema fluid. Its material possesses good flexibility and corrosion resistance, enabling it to adapt to various usage environments. The enema bag 61 serves as a storage container for the enema fluid, and it has graduations to accurately control the volume of enema fluid to be injected. The regulating valve 62 precisely controls the flow rate of the enema fluid within the infusion tube 65. The drip tube 63 visually displays the flow rate and volume of the enema fluid. The diffuser 64 has external threads on its top and corresponding threads on the inner side of the injection port 121. The diffuser 64 can be threadedly connected to the injection port 121 for easy disassembly, thereby further improving the ease of operation of the device.
[0040] Optionally, it also includes an end cap 7, which is detachably connected to the injection port 121.
[0041] Exemplary, in this embodiment of the invention, the end cap 7 can be fixed to the bottom surface 12 by a fixing buckle to prevent the end cap 7 from being lost. The end cap 7 is also provided with threads that match the inner wall of the injection port 121, so that the end cap 7 and the injection port 121 can be threadedly connected. After the enema fluid is injected, the diffuser 64 is disassembled from the injection port 121, and then the end cap 7 is threadedly connected to the injection port 121, thereby providing secondary protection against backflow of the enema fluid, thus further improving the leak-proof performance of the device.
[0042] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0043] The above description is only an optional embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A leak-proof enema device, characterized by, include: The outer casing (1), piston (2), and spring (3) are all components of the outer casing. The outer shell (1) has a frustum-shaped structure. The outer shell (1) includes a top surface (11) and a bottom surface (12). The area of the top surface (11) is smaller than the area of the bottom surface (12). An enema port (111) is provided on the top surface (11), and an injection port (121) is provided on the bottom surface (12). A cavity (13) is provided inside the outer shell (1). The enema port (111) and the injection port (121) are both connected to the cavity (13). A horizontal partition (14) is provided inside the cavity (13). A piston hole (141) is provided on the partition (14). The piston (2) is slidably disposed in the piston hole (141). A leak-proof ring (4) is provided between the piston (2) and the piston hole (141). The leak-proof ring (4) is connected to the piston hole. (141) Contact connection, the bottom of the partition (14) is provided with a baffle (15), the baffle (15) is used to block the piston (2) from moving from the piston hole (141) to the side close to the injection port (121), the piston (2) and the piston hole (141) cooperate to form a one-way valve, so that the enema fluid can only move from the injection port (121) side to the enema port (111) side and cannot flow back, the baffle (15) is provided with a limiting protrusion (151), the bottom of the piston (2) is provided with a limiting groove (21) that matches the limiting protrusion (151), one end of the spring (3) is connected to the bottom of the piston (2), a bracket (16) is provided in the injection port (121), and the other end of the spring (3) is connected to the bracket (16).
2. A leak-proof enema device according to claim 1, wherein The bracket (16) includes a support disc (161) and a plurality of fixing rods (162). The support disc (161) is arranged horizontally. One end of the fixing rod (162) is fixed to the side of the support disc (161), and the other end is fixed to the inner wall of the injection port (121). The plurality of fixing rods (162) are evenly spaced along the circumference of the support disc (161).
3. The leak-proof enema device according to claim 1, characterized in that, The side of the outer shell (1) is an inwardly concave arc surface.
4. The leak-proof enema device according to claim 1, characterized in that, The outer shell (1) is provided with a wing-shaped handle (5) on the side near the bottom surface (12).
5. The leak-proof enema device according to claim 1, characterized in that, It also includes an enema bag (61), a regulating valve (62), a drip tube (63), a diffuser tube (64), and an infusion tube (65). The enema bag (61), the regulating valve (62), the drip tube (63), and the diffuser tube (64) are connected in sequence through the infusion tube (65). One end of the diffuser tube (64) is detachably connected to the injection port (121).
6. The leak-proof enema device according to claim 1, characterized in that, It also includes an end cap (7), which is detachably connected to the injection port (121).