A leak-proof tubing assembly for an enema device

Abstract

This utility model discloses a leak-proof catheter assembly for an enema device, including a strap, an enema mechanism, an inlet tube, and a fixing member. The fixing member is connected to the strap, and the enema mechanism is supported by the fixing member and extends towards the inside of the strap. The enema mechanism has a positioning seat, which is movably mounted on the fixing member. The inlet tube communicates with the positioning seat, and the positioning seat has an outlet. A spring is provided between the fixing member and the positioning seat. The fixing member has a threaded adjustment seat, and the positioning seat is connected to an adjustment member. The adjustment member and the threaded adjustment seat are threaded together to adjust the axial position of the positioning seat relative to the fixing member and change the preload force applied to the positioning seat by the spring. This assembly forms external support through the strap and the fixing member, and keeps the positioning seat in place through the spring, reducing enema fluid leakage and the operational burden of continuous support and adjustment by medical staff.

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing device technology, specifically to a leak-proof catheter assembly for an enema device. Background Technology

[0002] Enema procedures typically involve delivering enema fluid into the intestines using an enema kit, inlet tubing, and enema inlet. During the procedure, healthcare professionals usually need to support the enema kit, inlet tubing, or inlet to maintain the insertion position of the inlet, the tubing angle, and the stability of the enema process.

[0003] To reduce leakage of enema fluid from the anus, existing enema devices often have a leak-proof structure such as a plug, sealing ring, or airbag on the outside of the inlet. The plug or sealing ring is usually fixed to the catheter or inlet and relies on its own elastic deformation to form a fit with the periphery of the anus.

[0004] However, the sealing pressure of existing occluders or balloon-type structures mainly depends on the size of the occluder itself, the elasticity of the material, the insertion position, or the inflation volume of the balloon. During the enema, involuntary contraction of the sphincter, irregular contact of the anal canal folds, short-term changes in abdominal pressure, and slight changes in the angle at which medical staff hold the catheter or enema device can all cause unstable contact between the occluder structure and the anal opening. When the contact pressure is insufficient, the enema fluid is prone to leaking out from local micro-gaps.

[0005] Existing enema kits' leak-proof structures struggle to provide a consistently stable, low-intensity adhesive force during the enema process. Medical staff still need to continuously operate and adjust the inlet position, tubing angle, and sealing adhesion, resulting in a significant operational burden. Therefore, existing enema kit leak-proof structures suffer from insufficient inlet support stability, difficulty in adjusting the sealing pre-tightening force, and a trade-off between sealing performance and comfort. Utility Model Content

[0006] The purpose of this invention is to provide a leak-proof catheter assembly for an enema device, which reduces the workload of medical staff in continuously supporting and repeatedly adjusting the inlet end, and reduces the risk of enema fluid leaking out from local micro-gap.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A leak-proof conduit assembly for an enema device includes a strap, an enema mechanism, an inlet tube, and a fixing member. The fixing member is connected to the strap, and the enema mechanism is supported by the fixing member and extends toward the inside of the strap. The enema mechanism has a positioning seat, which is movably mounted on the fixing member along the extension direction of the enema mechanism. The inlet tube communicates with the positioning seat, and the positioning seat has an outlet communicating with the inlet tube. A spring is provided between the fixing member and the positioning seat. The fixing member has a threaded adjustment seat, and the positioning seat is connected to an adjusting member. The adjusting member is threadedly engaged with the threaded adjustment seat to adjust the axial position of the positioning seat relative to the fixing member and change the compression of the spring, so that the spring applies an adjustable preload to the positioning seat.

[0008] Preferably, the positioning seat includes an insertion part, a necking part, and a limiting part connected sequentially from front to back along the insertion direction. The front end of the insertion part has a rounded and tapered structure. The necking part is connected between the insertion part and the limiting part. The radial dimension of the limiting part is larger than the radial dimension of the necking part.

[0009] Preferably, the fixing member is provided with a guide groove, the guide groove extends along the movement direction of the positioning seat, the spring is at least partially accommodated in the guide groove, and the guide groove is used to guide the extension and contraction direction of the spring.

[0010] Preferably, the adjusting member is sleeved on the outside of the positioning seat and axially limited to the positioning seat. When the adjusting member is screwed in or out relative to the threaded adjusting seat, it drives the positioning seat to move relative to the fixing member along its axis, thereby changing the compression of the spring.

[0011] Preferably, an adjustment limiting structure is provided between the adjusting member and the threaded adjusting seat, the adjustment limiting structure being used to limit the maximum screwing distance of the adjusting member toward the positioning seat; an extension limiting structure is provided between the positioning seat and the fixing member, the extension limiting structure being used to limit the maximum extension distance of the positioning seat toward the insertion direction under the action of the spring.

[0012] Preferably, the strap has a hook side, a loop side, and an elastic pad. The loop side extends along the length of the strap, the hook side is located at one end of the strap and is bonded to the loop side, and the elastic pad is located on the inner side of the strap.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention provides external support for the enema mechanism through straps and fixing components, enabling the positioning seat to maintain a relatively stable support position during the enema process, reducing the workload of medical staff in continuously supporting and repeatedly adjusting the insertion end. The adjusting component engages with the threaded adjusting seat to adjust the axial position of the positioning seat relative to the fixing component, thereby changing the spring compression and applying an adjustable preload force to the positioning seat. This allows the positioning seat to conform to the anus with a relatively stable, low-intensity force, balancing leakage prevention and user comfort. A guide groove guides the spring, ensuring the spring's preload force acts on the positioning seat along its direction of movement, improving the stability of the preload effect. The insertion part, necking part, and limiting part of the positioning seat facilitate insertion and conformity to the anus while limiting excessive entry; the adjusting and extending limiting structures limit excessive displacement of the adjusting component and positioning seat, improving safety during use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a leak-proof tubing assembly for an enema device.

[0015] Figure 2 This is a schematic diagram of the overall structure of a leak-proof conduit assembly for an enema device from another angle.

[0016] Figure 3 This is an enlarged schematic diagram of the enema mechanism in an anti-leakage conduit assembly for an enema device.

[0017] Attached icon number 1. Strap; 11. Hooked strap; 12. Textured strap; 13. Elastic pad; 2. Enema mechanism; 21. Positioning seat; 211. Insertion part; 212. Limiting part; 22. Spring; 23. Liquid outlet; 24. Adjusting component; 3. Liquid inlet pipe; 4. Fixing component; 41. Guide groove; 42. Threaded adjustment seat. Detailed Implementation

[0018] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application.

[0019] like Figures 1 to 3As shown, this embodiment provides a leak-proof catheter assembly for an enema device, including a strap 1, an enema mechanism 2, an inlet tube 3, and a fixing member 4. The fixing member 4 is connected to the strap 1, the enema mechanism 2 is supported by the fixing member 4 and extends towards the inside of the strap 1, and the inlet tube 3 communicates with the enema mechanism 2. The strap 1 is used to fix the device to the outer side of the patient's buttocks, proximal thigh, or gluteal region, and the fixing member 4 is used to provide an external support base for the enema mechanism 2, so that the enema mechanism 2 maintains a support direction towards the anal region during the enema process.

[0020] The bandage 1 is a flexible strip structure. One end of the bandage 1 has a hook-and-loop side 11, and the other end has a textured side 12. The hook-and-loop side 11 and the textured side 12 are bonded together. The textured side 12 extends along the length of the bandage 1, and the hook-and-loop side 11 can be bonded to different positions on the textured side 12, allowing the bandage 1 to form different sizes of wrapping. The textured side 12 serves as a longer adjustment area to accommodate changes in the circumference of the patient's buttocks or proximal thigh. The hook-and-loop side 11 is located at the end of the bandage 1, and its length is shorter than that of the textured side 12 to reduce scratching caused by a large exposed area of ​​the hook-and-loop side 11.

[0021] An elastic pad 13 is provided on the inner side of the bandage 1. The elastic pad 13 is used to conform to the outer side of the patient's buttocks or gluteal region. The area of ​​the elastic pad 13 is larger than the area of ​​the connection between the fastener 4 and the bandage 1, so that the force transmitted from the fastener 4 to the bandage 1 can be distributed to the outer side of the buttocks or gluteal region through the elastic pad 13. The elastic pad 13 has a flexible pad-like structure, which can conform to the curvature of the patient's outer side of the buttocks or gluteal region, so that the bandage 1 forms a softer contact surface when it is wrapped around and fixed. The elastic pad 13 can be set on the inner side of the corresponding position of the fastener 4, or it can extend locally along the inner side of the bandage 1, so that both the area where the fastener 4 is located and the force-bearing area of ​​the bandage 1 have buffer support.

[0022] The fixing element 4 is mounted on the bandage 1, and is located on the side of the bandage 1 facing the anal region after it is worn. A stable connection is formed between the fixing element 4 and the bandage 1. The fixing element 4 can be connected to the bandage 1 by suturing, riveting, snapping, bonding, or overmolding. The fixing element 4 is used to mount and support the enema mechanism 2, ensuring that the enema mechanism 2 maintains a set extension direction relative to the bandage 1. When the bandage 1 is fixed to the patient's lateral buttock, proximal thigh, or gluteal region, the fixing element 4 is positioned facing the anal region, and the enema mechanism 2 extends from the fixing element 4 toward the inside of the bandage 1, so that the positioning seat 21 of the enema mechanism 2 corresponds to the anal opening.

[0023] The enema mechanism 2 includes a positioning seat 21, a spring 22, an outlet 23, and an adjusting member 24. The positioning seat 21 is movably mounted on the fixing member 4 along the extension direction of the enema mechanism 2. The positioning seat 21 is connected to the inlet pipe 3, and the outlet 23 is located on the positioning seat 21 and connected to the inlet pipe 3. After the enema fluid enters the positioning seat 21 through the inlet pipe 3, it flows out through the outlet 23. The outlet 23 is located on the insertion end of the positioning seat 21 or on the side wall near the insertion end. There can be one or more outlets 23. When multiple outlets 23 are arranged at intervals along the circumference or axial direction of the positioning seat 21, the enema fluid can be discharged from the front area of ​​the positioning seat 21, improving the dispersion of the enema fluid after entering the intestine.

[0024] The positioning seat 21 includes an insertion portion 211, a necking portion, and a limiting portion 212. The insertion portion 211 is located at the front end of the positioning seat 21 and is used to enter the inner side of the anus. The front end of the insertion portion 211 has a rounded, tapering structure, with its outer diameter gradually decreasing from back to front. This rounded front end reduces resistance during insertion. The necking portion connects the insertion portion 211 and the limiting portion 212. The radial dimension of the necking portion is smaller than that of the limiting portion 212. The necking portion is positioned at the anus and fits snugly against the periphery of the anus. The limiting portion 212 is located behind the necking portion. The radial dimension of the limiting portion 212 is larger than that of the necking portion. The limiting portion 212 abuts against the outer region of the anus to limit the overall excessive entry of the positioning seat 21 into the inner side of the anus. The positioning seat 21 is made of medical-grade silicone, thermoplastic elastomer, or other flexible medical materials, and the insertion portion 211, necking portion, and limiting portion 212 form a flexible contact structure.

[0025] The fixing member 4 is provided with a guide groove 41, which extends along the movement direction of the positioning seat 21. The spring 22 is at least partially accommodated within the guide groove 41, which guides the extension and retraction direction of the spring 22. The spring 22 is positioned between the fixing member 4 and the positioning seat 21, with one end acting on the positioning seat 21 and the other end supported by the adjusting structure containing the fixing member 4 or the adjusting member 24. When compressed, the spring 22 generates an elastic force along the movement direction of the positioning seat 21, which pushes the positioning seat 21 towards the insertion direction to form a continuous contact force. The guide groove 41 provides radial constraint to the spring 22, allowing the spring 22 to extend and retract axially along the positioning seat 21 during compression and rebound, reducing lateral deflection of the spring 22 and ensuring that the preload applied by the spring 22 to the positioning seat 21 is aligned with the movement direction of the positioning seat 21.

[0026] The fixing member 4 is provided with a threaded adjusting seat 42. The adjusting member 24 is sleeved on the outside of the positioning seat 21 and is axially limited to the positioning seat 21. The adjusting member 24 is threadedly engaged with the threaded adjusting seat 42. The adjusting member 24 can be screwed in or out relative to the threaded adjusting seat 42, and during the screwing in or out process, it drives the positioning seat 21 to move axially relative to the fixing member 4. When the adjusting member 24 is screwed in relative to the threaded adjusting seat 42, the positioning seat 21 moves axially and changes its relative distance with the fixing member 4, so that the spring 22 provided between the fixing member 4 and the positioning seat 21 is compressed, and the preload force applied by the spring 22 to the positioning seat 21 increases. When the adjusting member 24 is screwed out relative to the threaded adjusting seat 42, the positioning seat 21 moves in the opposite direction, the compression of the spring 22 decreases, and the preload force applied by the spring 22 to the positioning seat 21 decreases.

[0027] The axial limiting fit between the adjusting member 24 and the positioning seat 21 can be achieved through an annular step, annular groove, flange, or snap-fit ​​portion provided on the outer periphery of the positioning seat 21. After the adjusting member 24 is sleeved on the outside of the positioning seat 21, it forms a limiting relationship with the positioning seat 21 in the axial direction, so that when the adjusting member 24 rotates, it can drive the positioning seat 21 to generate relative displacement in the axial direction. Relative rotation between the adjusting member 24 and the positioning seat 21 is allowed to reduce the torsional pull on the positioning seat 21 when the adjusting member 24 rotates; the positioning seat 21 moves axially under the action of the adjusting member 24, and the compression of the spring 22 changes with the position of the positioning seat 21. The threaded fit between the adjusting member 24 and the threaded adjusting seat 42 allows the axial position of the positioning seat 21 relative to the fixed member 4 to be gradually adjusted, so that the preload of the spring 22 can be set within the low-strength compensation range before use.

[0028] An adjustment limiting structure is provided between the adjusting member 24 and the threaded adjusting seat 42. This limiting structure restricts the maximum screwing distance of the adjusting member 24 toward the positioning seat 21. The limiting structure is formed by a limiting step, a limiting flange, or a stop end face provided on the adjusting member 24, or within the threaded adjusting seat 42. When the adjusting member 24 screws into the set position, the limiting step or limiting flange abuts against the stop end face, stopping the adjusting member 24 from moving further toward the positioning seat 21, thereby limiting the maximum adjustment displacement of the positioning seat 21 relative to the fixed member 4 and limiting the maximum compression of the spring 22. An extension limiting structure is provided between the positioning seat 21 and the fixed member 4. This extension limiting structure restricts the maximum extension distance of the positioning seat 21 in the insertion direction under the action of the spring 22. The extension limiting structure is formed by the step structure at the rear of the positioning seat 21 engaging with the groove wall or hole edge of the fixed member 4. The adjusting limit structure, the extension limit structure, and the limit part 212 together limit the working stroke of the positioning seat 21, so that the positioning seat 21 is kept within the set extension range under the action of the spring 22.

[0029] The inlet tube 3 is connected to the positioning seat 21. One end of the inlet tube 3 is connected to the positioning seat 21, and the other end is used to connect to the enema device or enema fluid supply structure. The inlet tube 3 is a flexible medical hose or a medical tube with bending and retaining capabilities. The inlet tube 3 is led out from near the fixing member 4 and communicates with the fluid passage chamber inside the positioning seat 21. After the enema fluid enters the positioning seat 21 from the inlet tube 3, it flows through the fluid passage chamber inside the positioning seat 21 to the outlet 23, and then is discharged from the outlet 23. When the inlet tube 3 forms a bend near the fixing member 4, the bend can adapt to the spatial position after the strap 1 is worn, reducing the direct pulling of the inlet tube 3 on the positioning seat 21.

[0030] Before use, medical personnel first adjust the adjusting component 24 externally. The adjusting component 24 screws in or out relative to the threaded adjusting seat 42, causing the positioning seat 21 to move axially relative to the fixed component 4, thus placing the spring 22 in a preset compressed state. The preset compression of the spring 22 is controlled within a low-intensity compensation range. After the adjusting component 24 is adjusted, the adjusting limit structure restricts the adjusting component 24 from further excessively screwing towards the positioning seat 21, and the extension limit structure restricts the maximum extension distance of the positioning seat 21 in the insertion direction, ensuring that the positioning seat 21 is in a controllable extension state before use. This preset compressed state provides a low-intensity contact compensation force, and the adjusting limit structure and the extension limit structure jointly control the maximum extension amount of the positioning seat 21.

[0031] The patient assumes a left lateral decubitus position with the lower limb on the side closest to the bed naturally extended or slightly flexed, and the lower limb on the side furthest from the bed flexed at the hip and knee, exposing the anal area. The binding strap 1 is wrapped around the proximal thigh or buttock area on the side furthest from the bed, with the elastic pad 13 conforming to the outer buttock or buttock area, and the fixing element 4 positioned towards the anal area. Medical staff attach the hook-and-loop strap 11 to the loop strap 12, ensuring a stable, encircling position for the binding strap 1. The tightness of the binding strap 1 is adjusted so that the fixing element 4 stably supports the enema mechanism 2, and the elastic pad 13 flexibly conforms to the outer buttock or buttock area. After the binding strap 1 is worn, the position of the fixing element 4 corresponds to the anal area, and the positioning seat 21 is positioned for easy insertion.

[0032] After the strap 1 is secured, the positioning seat 21 remains in its extended position under the preset low-intensity pre-tightening force of the spring 22. Medical personnel align the insertion part 211 of the positioning seat 21 with the anus, allowing the rounded, tapering tip of the insertion part 211 to enter the inside of the anus. After insertion, the neck of the insertion part 211 is positioned at the anus, while the limiting part 212 is located outside the anus and abuts against the outer region of the anus. The limiting part 212 restricts the positioning seat 21 from further inward insertion, the extension limiting structure restricts the positioning seat 21 from continuing to extend relative to the fixing member 4 in the insertion direction, and the adjusting limiting structure prevents the spring 22 from generating excessive pre-tightening force. With the positioning seat 21 inserted, the adjusting member 24 remains in the pre-set position, and the positioning seat 21 remains flexibly fitted under the preset low-intensity pre-tightening force of the spring 22.

[0033] After the positioning seat 21 is inserted, the spring 22 only compresses or rebounds within a preset compression range. When the positioning seat 21 is subjected to a reverse force from the anus, the spring 22 compresses along the guide groove 41 with a small stroke; when the contact pressure between the positioning seat 21 and the anus decreases, the spring 22 rebounds and maintains the positioning seat 21 in contact. The function of the spring 22 is to compensate for fluctuations in contact pressure. The insertion depth of the positioning seat 21 is limited by both the limiting part 212 and the extension limiting structure. When the positioning seat 21 maintains a flexible fit, the necked part is located at the anus, the limiting part 212 is located outside the anus, and the insertion part 211 is located inside the anus.

[0034] The enema fluid enters the positioning seat 21 through the inlet tube 3 and flows out through the outlet 23. During the enema, the strap 1 and the fixing element 4 provide external support for the enema mechanism 2, and the spring 22 provides a continuous contact force to the positioning seat 21 within a preset low strength range. Medical staff can hold the enema device or the inlet tube 3 to control the enema process. The fixing element 4 and the spring 22 maintain the support and contact state of the positioning seat 21, reducing the need for continuous support of the positioning seat 21 and repeated adjustments to the position of the inlet end.

[0035] During an enema, involuntary sphincter contractions, changes in the folds of the anal canal, short-term changes in abdominal pressure, and slight changes in the angle at which medical staff support the enema kit or inlet tube 3 can all alter the contact state between the positioning seat 21 and the anus. A spring 22 is positioned between the fixing member 4 and the positioning seat 21. When the positioning seat 21 is subjected to a reverse force, the spring 22 compresses slightly within the guide groove 41. When the contact pressure between the positioning seat 21 and the anus decreases, the spring 22 rebounds and pushes the positioning seat 21 to maintain contact. Through the compression and rebound of the spring 22, a relatively stable low-intensity contact state is maintained between the positioning seat 21 and the anus, reducing the possibility of enema fluid leakage from local micro-gaps.

[0036] The insertion portion 211, the necking portion, and the limiting portion 212 of the positioning seat 21 respectively perform the functions of insertion, fitting, and limiting during use. The rounded and tapered structure of the insertion portion 211 reduces insertion resistance; the necking portion fits against the periphery of the anus; and the limiting portion 212 is located outside the anus and restricts the overall excessive entry of the positioning seat 21. The micro-preload provided by the spring 22 is transmitted to the necking portion and the limiting portion 212 via the positioning seat 21. The adjusting member 24 is used to change the preload of the spring 22 externally. The amount of adjustment of the adjusting member 24 is limited by the adjusting limiting structure, the amount of extension of the positioning seat 21 is limited by the extension limiting structure, and the limiting portion 212 forms an external limit on the actual insertion depth of the positioning seat 21.

[0037] The textured surface 12 of the bandage 1 is arranged along the length of the bandage 1, allowing the bandage 1 to be adjusted according to the circumference of the proximal thigh or buttock area of ​​the patient. A hook-and-loop surface 11 is located at one end of the bandage 1; after the bandage 1 is wrapped around, the hook-and-loop surface 11 is adhered to the corresponding position of the textured surface 12. A fastener 4 is provided on the bandage 1. When the fastener 4 is subjected to a force from the enema mechanism 2, the bandage 1 disperses the force by wrapping around and fixing it, and the elastic pad 13 further disperses the local pressure. The bandage 1, elastic pad 13, and fastener 4 together form an external support structure, enabling the enema mechanism 2 to maintain a support direction towards the anal region.

[0038] In this embodiment, the strap 1 is made of flexible fabric, medical elastic band, or composite flexible material. The elastic pad 13 is made of sponge, silicone pad, foam material, or flexible rubber pad. The fixing member 4 is made of plastic, medical polymer material, or lightweight metal material. The positioning seat 21 is made of medical silicone, latex, thermoplastic elastomer, or other flexible medical material. The spring 22 is a stainless steel spring or medical elastic element. The inlet tube 3 is a medical flexible tube. The above material combination is used to form flexible contact, external support, and enema fluid delivery.

[0039] During assembly, the fastener 4 is mounted on the strap 1, and the threaded adjusting seat 42 is formed on or mounted on the fastener 4. The positioning seat 21 is installed along the guide direction of the fastener 4, and the spring 22 is placed in the guide groove 41 and cooperates with the positioning seat 21. The adjusting element 24 is connected to the positioning seat 21 and threadedly connected to the threaded adjusting seat 42. The liquid inlet pipe 3 communicates with the positioning seat 21. After assembly, turning the adjusting element 24 can drive the positioning seat 21 to move relative to the fastener 4 along its axial direction, thereby changing the compression of the spring 22. The positioning seat 21 can move slightly along its axial direction under the action of the spring 22.

[0040] Figure 1 The overall structure of this embodiment is shown. The strap 1 is in a loop-like unfolded state, with the hook-and-loop side 11 and the rough-around-the-edge side 12 respectively positioned at corresponding locations on the strap 1, and the elastic pad 13 located inside the strap 1. The enema mechanism 2 is located in the middle region of the strap 1, and the inlet pipe 3 extends from near the enema mechanism 2. Figure 2 The overall structure is shown from another angle. The fastener 4 is located on the strap 1, the enema mechanism 2 is supported by the fastener 4 and extends into the strap 1, and the positioning seat 21 is located at the front end of the enema mechanism 2. Figure 3 An enlarged view of the enema mechanism 2 is shown. The spring 22 is located on the outside of the positioning seat 21. The adjusting member 24 cooperates with the threaded adjusting seat 42. The liquid inlet pipe 3 is connected to the positioning seat 21. The liquid outlet 23 is located at the front of the positioning seat 21.

[0041] After the enema is completed, stop the fluid infusion. Medical staff should stabilize the fixation piece 4 or the enema mechanism 2, and reverse the rotation of the adjusting piece 24 so that it unscrews relative to the threaded adjusting seat 42. This moves the positioning seat 21 relative to the fixation piece 4, reducing the compression of the spring 22 and lowering the pre-tension force on the positioning seat 21. After the pre-tension force decreases, remove the positioning seat 21 from the anus. Then, release the adhesive between the hook-and-loop strap 11 and the looped strap 12, allowing the bandage 1 to be removed from the patient's outer buttock, proximal thigh, or gluteal region. During disassembly, the force exerted when the positioning seat 21 is removed is reduced, and the bandage 1 does not pull on the anal area when it is removed.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A leak-proof catheter assembly for an enema device, characterized in that, The enema includes a strap (1), an enema mechanism (2), an inlet tube (3), and a fastener (4). The fastener (4) is connected to the strap (1). The enema mechanism (2) is supported by the fastener (4) and extends toward the inside of the strap (1). The enema mechanism (2) has a positioning seat (21), which is movably mounted on the fastener (4) along the extension direction of the enema mechanism (2). The inlet tube (3) communicates with the positioning seat (21), and the positioning seat (21) is provided with a connection to the inlet tube. The pipe (3) is connected to the outlet (23); a spring (22) is provided between the fixing member (4) and the positioning seat (21), the fixing member (4) is provided with a threaded adjustment seat (42), the positioning seat (21) is connected to an adjustment member (24), the adjustment member (24) is threadedly engaged with the threaded adjustment seat (42) to adjust the axial position of the positioning seat (21) relative to the fixing member (4) and change the compression of the spring (22) so that the spring (22) applies an adjustable preload to the positioning seat (21).

2. The leak-resistant catheter assembly for an enema applicator of claim 1, wherein, The positioning seat (21) includes an insertion part (211), a necking part, and a limiting part (212) connected sequentially from front to back along the insertion direction. The front end of the insertion part (211) is a rounded and tapered structure. The necking part is connected between the insertion part (211) and the limiting part (212). The radial dimension of the limiting part (212) is greater than the radial dimension of the necking part.

3. The leak-resistant catheter assembly for an enema applicator of claim 2, wherein, The fixing member (4) is provided with a guide groove (41), which extends along the movement direction of the positioning seat (21). The spring (22) is at least partially accommodated in the guide groove (41), which is used to guide the extension and retraction direction of the spring (22).

4. The leak-resistant catheter assembly for an enema applicator of claim 3, wherein, The adjusting member (24) is sleeved on the outside of the positioning seat (21) and is axially limited to the positioning seat (21). When the adjusting member (24) is screwed in or out relative to the threaded adjusting seat (42), it drives the positioning seat (21) to move relative to the fixing member (4) along its axis, so as to change the compression of the spring (22).

5. The anti-leakage conduit assembly for an enema device according to claim 4, characterized in that, An adjustment limiting structure is provided between the adjusting member (24) and the threaded adjusting seat (42), the adjustment limiting structure being used to limit the maximum screwing distance of the adjusting member (24) toward the positioning seat (21); an extension limiting structure is provided between the positioning seat (21) and the fixing member (4), the extension limiting structure being used to limit the maximum extension distance of the positioning seat (21) toward the insertion direction under the action of the spring (22).

6. The anti-leakage conduit assembly for an enema device according to claim 1, characterized in that, The strap (1) is provided with a hook-and-loop side (11), a loop side (12) and an elastic pad (13). The loop side (12) extends along the length of the strap (1). The hook-and-loop side (11) is located at one end of the strap (1) and is bonded to the loop side (12). The elastic pad (13) is located on the inner side of the strap (1).

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