Urethral catheterization device for pediatric urology department and use method thereof

By designing a pediatric urinary catheterization device, which employs a detachable structure for the diaphragm, catheter, connecting tubing, and valve, the discomfort and foreign body issues caused by prolonged catheterization in children are resolved, achieving the effect of unimpeded child activity and smooth urination.

CN121846482APending Publication Date: 2026-04-14ANHUI PROVINCIAL CHILDRENS HOSPITAL (ANHUI XINHUA HOSPITAL ANHUI INST OF PEDIATRIC MEDICINE FUDAN UNIV CHILDRENS HOSPITAL ANHUI HOSPITAL)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI PROVINCIAL CHILDRENS HOSPITAL (ANHUI XINHUA HOSPITAL ANHUI INST OF PEDIATRIC MEDICINE FUDAN UNIV CHILDRENS HOSPITAL ANHUI HOSPITAL)
Filing Date
2024-01-29
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Children have poor self-control, and wearing a urinary catheter for a long time can cause discomfort and aversion, affect their activities, and pose a risk of foreign objects entering the urinary tract.

Method used

A pediatric urological catheterization device was designed, including a diaphragm, a catheter, a connecting catheter, and a valve body. It adopts a detachable structure, the catheter can be separated, the valve body is normally closed, the connecting catheter is connected only when needed, and the protective cover protects the urethra to avoid secondary injury and displacement.

Benefits of technology

It reduces discomfort for children, ensures unimpeded activity, prevents foreign objects from entering the urinary tract, maintains unobstructed urination, protects the urethra, facilitates operation and replacement, and improves safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The urinary catheterization device for the pediatric urology department comprises pocket cloth, the two end sides of the pocket cloth are connected to form an underpants structure to be fixed below the waist, a containing cavity is formed in the position, corresponding to the private part, of the pocket cloth, and a protective cover is connected to the position, corresponding to the containing cavity, of the outer side of the pocket cloth; the input end of the catheter extends into the human body through the urethra; the input end of the connecting catheter is communicated with the output end of the catheter, the output end of the connecting catheter extends out through a via hole in the end face of the protective cover, and a limiting baffle is arranged on the connecting catheter and matched with the inner wall of the protective cover; and the valve body is positioned in the connecting catheter and is directly communicated with the output end of the catheter. The two end sides of the pocket cloth are connected to form the underpants structure, the legs do not need to make corresponding actions when the underpants are put on and taken off, discomfort caused by touching the urethral catheterization device is reduced, the corresponding length of the urethral catheter can be cut according to different patients, the urethral catheter located on the outer side of the urethra does not need to be kept too long, and influences on behavior actions are avoided.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to pediatric urological catheterization devices and methods of using pediatric urological catheterization devices. Background Technology

[0002] Urinary catheterization is a common clinical medical procedure, usually used to help patients collect urine or assist patients with limited mobility after surgery to urinate. During catheterization, a catheter is typically inserted into the bladder through the urethra to drain urine and achieve stable urination after surgery.

[0003] However, children have poor self-control, and wearing a urinary catheter for a long time can cause discomfort. Wearing a catheter with sampling and fluid collection functions for a long time will inevitably affect the child's activities, cause the child to feel disgusted, and may cause the child to pull out the catheter unconsciously. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a pediatric urological catheterization device and a method for using the device. The specific technical solution is as follows:

[0005] According to one aspect of the present invention, a pediatric urological catheterization device is provided, comprising:

[0006] The pocket has two ends joined together to form an underwear structure that is fixed below the waist. The pocket has a cavity corresponding to the genital area, and a cover is connected to the outside of the pocket corresponding to the cavity.

[0007] A urinary catheter, the input end of which is inserted into the human body through the urethra;

[0008] A connecting catheter, wherein the input end of the connecting catheter is connected to the output end of the urinary catheter, and the output end extends through a through-hole on the end face of the protective cover; the connecting catheter has a limiting baffle that is adapted to the inner wall of the protective cover; and

[0009] The valve body is located inside the connecting catheter and is directly connected to the output end of the urinary catheter. Normally, the valve body is in a closed state.

[0010] Specifically, the diaper is designed to be easy for children to wear, with both ends joined together to form an underwear structure. This eliminates the need for leg movements when putting on or taking off the diaper, reducing discomfort caused by touching the catheter.

[0011] The catheter has not been significantly modified; it can be cut to the appropriate length for different patients to ensure it stays in place after the balloon is inflated. The catheter located outside the urethra does not need to be excessively long to avoid interfering with movement.

[0012] The connecting catheter serves two purposes: firstly, it acts as a connector for connecting and collecting urine, and is only connected when needed, not normally, to facilitate children's movement; secondly, it works in conjunction with a protective shield to protect the urethra, preventing secondary injury to the affected area, and also to limit the position of the catheter, preventing displacement of the catheter due to movement.

[0013] The valve body is used to protect the urinary tract under normal conditions. Since the valve body is closed under normal conditions, there is no risk of foreign objects entering the urinary tract, and urination is ensured to be unobstructed.

[0014] As an improvement to the above technical solution, the protective cover and the blouse are detachably fixedly connected, and the through hole is smaller than the maximum inner diameter of the protective cover.

[0015] When the protective cover and the diaphragm are detachably fixed, it is more convenient to operate the catheter, the connecting catheter, and the connection between the catheter and the connecting catheter even when the diaphragm is worn.

[0016] As an improvement to the above technical solution, the urinary catheter is fitted with an absorbent core, and the absorbent core is located at the connection between the urinary catheter and the connecting catheter. The side of the absorbent core away from the connecting catheter has an arc-shaped concave structure.

[0017] As an improvement to the above technical solution, the pocket cloth has a connector for connecting the corresponding ends of the pocket cloth.

[0018] As an improvement to the above technical solution, the urinary catheter and the connecting catheter are detachably fixedly connected.

[0019] According to another aspect of the present invention, a method of using a pediatric urological catheterization device is provided, comprising the following steps:

[0020] Step S100: Insert one end of the catheter into the human body through the urethra, and leave a certain length of the other end outside the urethra;

[0021] Step S200: Connect the input end of the urinary catheter to the connecting catheter, and fit an absorbent core onto the urinary catheter at the connection point between the urinary catheter and the connecting catheter;

[0022] Step S300: Connect and fix the protective cover to the tarpaulin, then place the connecting tube into the receiving cavity, and extend the output end of the connecting tube out from the through hole;

[0023] Step S400: Connect the connectors on the corresponding ends of the pocket fabric so that the pocket fabric forms an underwear structure and is fixed below the waist.

[0024] As an improvement to the above technical solution, in step S100, the urinary catheter and the connecting catheter are disinfected and sterilized before use, and the closing performance of the valve body is tested before the connecting catheter is used, and the connecting catheter that passes the test is used.

[0025] As an improvement to the above technical solution, the valve body closing performance testing method includes the following steps:

[0026] Step S110: Take any one of the connecting tubes and keep it vertical. Introduce a certain amount of liquid into the input end of the connecting tube. Stop adding liquid after the liquid passes through the valve body.

[0027] Step S120: After the liquid outlet of the valve body stops discharging liquid, observe whether there is any liquid remaining in the valve body.

[0028] If there is any residue, and the distance between the liquid level and the outlet port of the valve body is less than or equal to 5 mm, then the connecting conduit is qualified.

[0029] If there is no residue or the distance between the liquid level and the outlet port of the valve body is greater than 5mm, then the connecting conduit is unqualified.

[0030] As an improvement to the above technical solution, in step S400, after the diaphragm is put on, the liquid outlet port of the connecting conduit is not connected to the liquid collection bag or the sampling tube for sampling under normal conditions.

[0031] The beneficial effects of this invention are:

[0032] 1. In this invention, the diaper is designed for easy wear by children, with both ends joined together to form an underwear structure. This eliminates the need for leg movements during dressing and undressing, reducing discomfort caused by touching the catheterization device. The catheter itself remains largely unchanged; it is simply cut to the appropriate length for each patient to ensure the balloon stays in place after inflation. The catheter located outside the urethra does not need to be excessively long to avoid hindering movement. The connecting catheter serves two purposes: firstly, it acts as a connector for connecting and collecting urine, only connecting when needed and not maintaining a connection under normal circumstances to facilitate child movement; secondly, it works in conjunction with the protective shield to protect the urethra, preventing secondary injury to the affected area, and also limits the catheter's position to prevent displacement during activity.

[0033] 2. In this invention, after the urinary catheter is inserted and fixed in the urethra, a longer portion remains outside the body. This portion is used to connect additional sampling and the fluid storage section. Since this portion primarily affects the child's activity, it is removed, ensuring a secure connection between this portion and the connecting catheter to maintain smooth urination. When urine sampling or storage is required, it is simply reconnected to the connecting catheter. Attached Figure Description

[0034] Figure 1 This is a front view of a pediatric urinary catheterization device;

[0035] Figure 2 This is a rear view of a pediatric urinary catheterization device;

[0036] Figure 3 This is a frontal view of a pediatric urology catheterization device with the catheter removed and the connecting tubing in place.

[0037] Figure 4 This is an assembly diagram of the protective cover, catheter, and connecting tubing in a pediatric urology catheterization device.

[0038] Figure 5 This is a cross-sectional view of the assembly of the protective cover, catheter, and connecting tubing in a pediatric urological catheterization device;

[0039] Figure 6 This is a flowchart illustrating the usage of a pediatric urinary catheterization device;

[0040] Figure 7 This is a flowchart of the valve body 400 closing performance testing method.

[0041] Reference numerals: 100, diaphragm; 110, receiving cavity; 120, protective cover; 130, through hole; 140, connector; 200, catheter; 210, absorbent core; 300, connecting catheter; 310, limiting baffle; 400, valve body. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0043] See Figures 1-5 ,in, Figure 1 This is a front view of a pediatric urinary catheterization device; Figure 2 This is a rear view of a pediatric urinary catheterization device; Figure 3 This is a frontal view of a pediatric urology catheterization device with the catheter removed and the connecting tubing in place. Figure 4 This is an assembly diagram of the protective cover, catheter, and connecting tubing in a pediatric urology catheterization device. Figure 5 This is a cross-sectional view of the assembly of the protective cover, catheter, and connecting tubing in a pediatric urological catheterization device.

[0044] Children have poor self-control, and wearing a urinary catheter for a long time can cause discomfort. Wearing a catheter with sampling and fluid collection functions for a long time will inevitably affect the child's activities, cause the child to feel disgusted, and may cause the child to pull out the catheter involuntarily.

[0045] To address the above issues, a pediatric urological catheterization device is provided, comprising:

[0046] The pocket 100 is connected at both ends to form an underwear structure and is fixed below the waist. The pocket 100 has a receiving cavity 110 at the position corresponding to the vulva. A protective cover 120 is connected to the outside of the pocket 100 at the receiving cavity 110.

[0047] The catheter 200 has its input end inserted into the human body through the urethra.

[0048] A connecting catheter 300 is provided, the input end of which is connected to the output end of the urinary catheter 200. The output end extends through a through hole 130 on the end face of the protective cover 120. The connecting catheter 300 has a limiting baffle 310, which is adapted to the inner wall of the protective cover 120.

[0049] The valve body 400 is located inside the connecting catheter 300 and is directly connected to the output end of the urinary catheter 200. Normally, the valve body 400 is in a closed state.

[0050] Specifically, to make it easier for children to wear, the Pocket 100 uses a two-sided connection to form an underwear structure, so that no leg movements are required when putting it on or taking it off, reducing discomfort caused by touching the urinary catheter.

[0051] The 200mm catheter has not undergone many changes; it can be cut to the appropriate length according to different patients to ensure that the balloon can be fixed in position after inflation. The 200mm catheter located on the outside of the urethra does not need to be left too long to avoid affecting movement.

[0052] The connecting catheter 300 serves two purposes: firstly, it acts as a connector for connecting and collecting urine, and it is only connected when needed, not normally, to facilitate children's activities; secondly, it works with the shield 120 to protect the urethra and prevent secondary injury to the affected area, while also limiting the position of the catheter 200 to prevent displacement of the catheter 200 due to activity.

[0053] The valve body 400 is used to protect the urinary tract under normal conditions. Since the valve body 400 is normally closed, there is no risk of foreign objects entering the urinary tract, and urination is ensured to be unobstructed.

[0054] See appendix Figure 5 In one embodiment, the cover 120 is detachably fixed to the blouse 100, and the through hole 130 is smaller than the maximum inner diameter of the cover 120.

[0055] When the protective cover 120 and the diaphragm 100 are detachably fixedly connected, even when the diaphragm 100 is worn, it is more convenient to operate the catheter 200, the connecting catheter 300, and the connection relationship between the catheter 200 and the connecting catheter 300 by removing the protective cover 120.

[0056] At the same time, different protective covers 120 can be used to meet different needs. For example, a transparent protective cover 120 can be used to facilitate observation of the urinary catheter 200, the connecting catheter 300, the connection between the urinary catheter 200 and the connecting catheter 300, and the urinary catheterization status.

[0057] See appendix for further details. Figure 5 In one embodiment, an absorbent core 210 is fitted onto the urinary catheter 200, and the absorbent core 210 is located at the connection between the urinary catheter 200 and the connecting catheter 300. The side of the absorbent core 210 away from the connecting catheter 300 has an arc-shaped concave structure.

[0058] The absorbent core 210 prevents leakage and infection of the affected area caused by urine seeping from the outer wall of the catheter 200, thus improving safety during use. Furthermore, the absorbent status of the core 210 can be observed by opening the cover 120, allowing for timely replacement.

[0059] See appendix Figure 1 In one embodiment, the quilt 100 has a connector 140 for connecting to the corresponding end of the quilt 100.

[0060] To make it easier for children to wear, the Pocket 100 uses a two-end side-joint structure to form an underwear structure, so that no leg movements are required when putting it on or taking it off, reducing discomfort caused by touching the urinary catheter.

[0061] Preferably, the connector 140 is a Velcro or snap fastener for easy opening or closing.

[0062] Preferably, the urinary catheter 200 and the connecting catheter 300 are detachably fixedly connected.

[0063] It facilitates the replacement of the connecting conduit 300 and the absorbent core 210.

[0064] According to another aspect of the present invention, a method of using a pediatric urological catheterization device is provided, comprising the following steps:

[0065] Step S100: Insert one end of the catheter 200 into the human body through the urethra, and leave a certain length of the other end outside the urethra;

[0066] The catheter 200 and the connecting catheter 300 are disinfected and sterilized before use. The closing performance of the valve body 400 is tested before the connecting catheter 300 is used, and the connecting catheter 300 that passes the test is used.

[0067] Step S200: Connect the urinary catheter 200 to the input end of the connecting catheter 300, and fit an absorbent core 210 on the urinary catheter 200 at the connection between the urinary catheter 200 and the connecting catheter 300.

[0068] Step S300: Connect and fix the protective cover 120 to the blouse 100, then place the connecting conduit 300 in the receiving cavity 110, and extend the output of the connecting conduit 300 from the through hole 130;

[0069] In step S400, the connecting pieces 140 on the corresponding ends of the pocket 100 are connected, so that the pocket 100 forms an underwear structure and is fixed below the waist.

[0070] After the urinary catheter 200 is inserted and secured in the urethra, a longer portion remains outside the body. This portion is used to connect additional sampling and to collect urine. Since this portion primarily affects the child's activity, it is removed, ensuring a secure connection between this portion and the connecting catheter 300 to maintain unobstructed urination. When urine sampling or storage is required, it can be reconnected to the connecting catheter 300.

[0071] After the catheter is put on, you can wear pants to cover it up, so as to avoid the psychological harm caused by other children staring at the catheter if it is exposed.

[0072] In one embodiment, the method for testing the closing performance of the valve body 400 includes the following steps:

[0073] Step S110: Take any one of the connecting conduits 300 and keep it in a vertical position. Introduce a certain amount of liquid into the input end of the connecting conduit 300. Stop adding liquid after the liquid passes through the valve body 400.

[0074] Step S120: After the liquid outlet of the valve body 400 stops discharging liquid, observe whether there is any liquid remaining in the valve body 400.

[0075] If there is any residue, and the distance between the liquid level and the outlet port of the valve body 400 is less than or equal to 5 mm, then the connecting conduit 300 is qualified.

[0076] If there is no residue or the distance between the liquid level and the outlet port of the valve body 400 is greater than 5mm, then the connecting conduit 300 is unqualified.

[0077] Preferably, in step S400, after the diaphragm 100 is put on, the outlet port of the connecting conduit 300 is not connected to a collection bag for collecting liquid or a sampling tube for sampling under normal conditions.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pediatric urological catheterization device, characterized in that, include: The pocket (100) is formed by connecting the two ends of the pocket (100) to form an underwear structure and fixed below the waist. The pocket (100) has a receiving cavity (110) at the position corresponding to the vulva. A protective cover (120) is connected to the outside of the pocket (100) at the receiving cavity (110). A urinary catheter (200), the input end of which extends into the human body through the urethra; A connecting catheter (300) is provided, the input end of which is connected to the output end of a urinary catheter (200), and the output end extends through a through hole (130) on the end face of the protective cover (120). The connecting catheter (300) has a limiting baffle (310) that is adapted to the inner wall of the protective cover (120). The valve body (400) is located inside the connecting catheter (300) and is directly connected to the output end of the urinary catheter (200). Normally, the valve body (400) is in a closed state.

2. The pediatric urological catheterization device according to claim 1, characterized in that: The protective cover (120) is detachably and fixedly connected to the blouse (100), and the through hole (130) is smaller than the maximum inner diameter of the protective cover (120).

3. The pediatric urological catheterization device according to claim 1, characterized in that: The catheter (200) is fitted with an absorbent core (210), and the absorbent core (210) is located at the connection between the catheter (200) and the connecting catheter (300). The side of the absorbent core (210) away from the connecting catheter (300) has a concave arc structure.

4. The pediatric urological catheterization device according to claim 1, characterized in that: The pocket (100) has a connector (140) for connecting the corresponding ends of the pocket (100).

5. The pediatric urological catheterization device according to claim 3, characterized in that: The urinary catheter (200) and the connecting catheter (300) are detachably fixedly connected.

6. A method of using a pediatric urinary catheterization device, applied to the device described in any one of claims 1-5, characterized in that, Includes the following steps: Step S100: Insert one end of the catheter (200) into the human body through the urethra, and leave a certain length of the other end outside the urethra; Step S200: Connect the urinary catheter (200) to the input end of the connecting catheter (300), and fit an absorbent core (210) on the urinary catheter (200) at the connection between the urinary catheter (200) and the connecting catheter (300); Step S300: Connect and fix the protective cover (120) to the blouse (100), then place the connecting tube (300) in the receiving cavity (110), and extend the output end of the connecting tube (300) from the through hole (130); In step S400, the connectors (140) on the corresponding ends of the pocket fabric (100) are connected so that the pocket fabric (100) forms an underwear structure and is fixed below the waist.

7. The method of using the pediatric urinary catheterization device according to claim 6, characterized in that: In step S100, the urinary catheter (200) and the connecting catheter (300) are disinfected and sterilized before use, and the closing performance of the valve body (400) is tested before the connecting catheter (300) is used. The connecting catheter (300) that passes the test is used.

8. The method of using the pediatric urological catheterization device according to claim 7, characterized in that: The valve body (400) closing performance testing method includes the following steps: Step S110: Take any one of the connecting conduits (300) and keep it in a vertical position. Introduce a certain amount of liquid into the input end of the connecting conduit (300). Stop adding liquid after the liquid passes through the valve body (400). Step S120: After the liquid outlet of the valve body (400) stops discharging liquid, observe whether there is any liquid remaining in the valve body (400); If there is any residue, and the distance between the liquid level and the outlet port of the valve body (400) is less than or equal to 5 mm, then the connecting conduit (300) is qualified. If there is no residue or the distance between the liquid level and the outlet port of the valve body (400) is greater than 5 mm, then the connecting conduit (300) is unqualified.

9. The method of using the pediatric urological catheterization device according to claim 6, characterized in that: In step S400, after the hood (100) is put on, the liquid outlet port of the connecting conduit (300) is not connected to the liquid collection bag or the sampling tube for sampling under normal conditions.