Urethral catheter
By designing a catheter structure with an integrally injection-molded front end tube and a flush connection with the balloon, the problems of complex production and patient pain of traditional catheters are solved, and efficient production and comfortable intubation and extubation are achieved.
Patent Information
- Application Number
- CN202422335035.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The production process of traditional integrated urinary catheters is complicated, costly, and inefficient. Intubation and extubation cause pain to patients, and the production efficiency is low.
A urinary catheter is designed, which includes a connecting tube body, a front end tube body and a balloon. The front end tube body is injection molded as an integral piece, and the balloon is arranged in a recessed area. The outer peripheral wall of the balloon is flush with the outer peripheral wall of the front end tube body, eliminating the gluing and punching processes. The connection between the balloon and the front end tube body is smooth, reducing steps, and improving production efficiency and patient comfort.
It simplifies the production process, reduces costs, improves production efficiency, reduces the pain of patients during intubation and extubation, and facilitates nurses' operation.
Smart Images
Figure CN223416506U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a urinary catheter. Background Art
[0002] In the healthcare field, urinary catheters are an important auxiliary device, widely used for patients who cannot urinate independently due to various reasons. Traditional urinary catheter designs often adopt a one-piece structure, that is, the entire catheter from the drainage end to the fixed end is a single unit. While this design ensures continuity and sealing to a certain extent, it also brings various limitations and challenges.
[0003] Due to the complexity and integration of the structure, one-piece catheters often require more steps and precise assembly during the manufacturing process, which not only increases production costs but also significantly reduces production efficiency. With the growing demand for medical care, higher requirements are placed on the supply efficiency of medical consumables such as catheters. In addition, the balloons of silicone and plastic catheters are glued to the tube body, and shrink film is used to transition to make the two sides of the balloon smooth. However, in reality, it is not smooth and has steps, which causes certain pain to the patient during intubation and extubation. In addition, the shrink film transition process is complicated during the production process. It is also necessary to glue the plug and flush the drainage hole. There are many steps and the production efficiency is relatively low. Utility Model Content
[0004] The purpose of the utility model is to provide a urinary catheter to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.
[0005] The technical solutions adopted to solve the above technical problems are:
[0006] The utility model provides a urinary catheter, comprising a connecting tube body, a front end tube body and a balloon, the connecting tube body is provided with a first drainage channel and a first inflation channel; the two ends of the front end tube body are respectively an insertion end and a connecting end, the insertion end is provided with a plug, the connecting end is connected to the connecting tube body, the insertion end is provided with at least one drainage hole, the insertion end is provided with a recessed area arranged in a ring on the front end tube body, the recessed area is provided with an inflation hole, the front end tube body is provided with a second inflation channel and a second drainage channel, the second drainage channel is communicated with the drainage hole and the first drainage channel, the second inflation channel is communicated with the inflation hole and the first inflation channel, the front end tube body is an integral injection molded component; the balloon is provided in the recessed area, the outer peripheral wall of the balloon is flush with the peripheral wall of the front end tube body, and the balloon is communicated with the second inflation channel through the inflation hole.
[0007] The beneficial effects of the utility model are:
[0008] The balloon-adhering portion of the front tube body has a recessed area, allowing the balloon to sit flush with the tube body. This requires only gluing to secure the balloon, eliminating the need for a smooth transition. Furthermore, the injection-molded front tube body has already been plugged and punched, eliminating the need for further punching and plugging. This eliminates the time-consuming transition, punching, and plugging processes, improving production efficiency and reducing costs. The front tube body is connected to the connecting tube body, and the balloon is sunken into the front tube, flush with the surface. This eliminates the need for steps, making intubation and extubation easier, reducing pain for patients and facilitating operations for nurses.
[0009] As a further improvement to the above technical solution, the connection end is provided with a plug-in head, the plug-in head is provided with multiple annular grooves, and glue is provided between the annular grooves and the connecting tube body. The glue is evenly distributed on the plug-in head, making the connection more secure and also providing better waterproofing.
[0010] As a further improvement to the above technical solution, the inner wall of the connecting tube body is provided with a boss, and the side wall of the insertion head is provided with a groove matching the boss, thereby improving the firmness of the connection between the connecting tube body and the front end tube body and preventing the two from rotating relative to each other.
[0011] As a further improvement to the above technical solution, the first inflation channel is provided on the boss and extends axially along the connecting tube body. The first inflation channel does not need to be provided within the first drainage channel, thereby increasing the transverse area of the first drainage channel, increasing the flow rate of the first drainage channel, and making the layout more reasonable and compact. Otherwise, the first inflation channel is provided within the first drainage channel, reducing the transverse area of the first drainage channel and occupying the flow rate of the first drainage channel.
[0012] As a further improvement of the above technical solution, the insertion head is provided with a drainage connection channel, and the drainage connection channel is communicated with the first drainage channel and the second drainage channel respectively.
[0013] As a further improvement of the above technical solution, the first inflation channel and the second inflation channel are provided correspondingly, so as to ensure the connectivity of each channel during installation.
[0014] As a further improvement of the above technical solution, the cross section of the first inflation channel is crescent-shaped.
[0015] As a further improvement to the above technical solution, the two sides of the recessed area are provided with annular steps arranged on the front end tube body, and the balloon is attached to the steps. After inflation, the spacing between the balloon and the tube wall of the front end tube body is more uniform.
[0016] As a further improvement of the above technical solution, the balloon is cylindrical, which makes the outer surface of the front-end tube smooth, reduces the pain of the patient during intubation and extubation, and facilitates the operation of the nurse.
[0017] As a further improvement of the above technical solution, the plug is conical, which plays a guiding role, reduces the pain of the patient during intubation and extubation, and facilitates the operation of the nurse. BRIEF DESCRIPTION OF DRAWINGS
[0018] The utility model will be further described below in combination with the drawings and examples;
[0019] Figure 1 is a catheter provided by the utility model, a structure schematic view of one embodiment thereof;
[0020] Figure 2 is a catheter provided by the utility model, an exploded structure schematic view of one embodiment thereof;
[0021] Figure 3 is a catheter provided by the utility model, a cross-sectional schematic view of the balloon of one embodiment thereof when not inflated;
[0022] Figure 4 is a catheter provided by the utility model, a cross-sectional schematic view of the balloon of one embodiment thereof after inflation;
[0023] Figure 5 is a catheter provided by the utility model, a structure schematic view of the front-end tube of another embodiment thereof;
[0024] Figure 6 is a catheter provided by the utility model, a cross-sectional schematic view of the front-end tube of another embodiment thereof. DETAILED DESCRIPTION
[0025] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings serve to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0026] In the description of the utility model, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0027] In the description of the present invention, if there are words such as "several", it means one or more, and "more" means more than two. Greater than, less than, and exceed are understood to exclude the number itself, and above, below, and within are understood to include the number itself.
[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0029] Reference Figures 1 to 6 The present invention relates to a urinary catheter and is provided in the following embodiments:
[0030] A urinary catheter comprises a connecting tube body 100, a front end tube body 200 and a balloon 300.
[0031] The connecting tube body 100 is provided with a first drainage channel 101 and a first inflation channel 102;
[0032] The two ends of the front end tube body 200 are respectively an insertion end and a connection end. The insertion end is provided with a plug 210. The plug 210 is conical and plays a guiding role, reducing the patient's pain during intubation and extubation, and also facilitating the nurse's operation.
[0033] The connecting end is connected to the connecting tube body 100, the insertion end is provided with at least one drainage hole 240, and the insertion end is provided with a concave area 220 arranged around the front end tube body 200. When not inflated, Figure 3 As shown, the balloon 300 is cylindrical, which makes the outer surface of the front end tube body 200 smooth, reduces the pain of the patient during intubation and extubation, and also facilitates the operation of the nurse.
[0034] The recessed area 220 is provided with an inflation hole 221, and the front end tube body 200 is provided with a second inflation channel and a second drainage channel. The second drainage channel is connected to the drainage hole 240 and the first drainage channel 101, and the second inflation channel is connected to the inflation hole 221 and the first inflation channel 102. The balloon 300 is provided in the recessed area 220, and the outer peripheral wall of the balloon 300 is flush with the outer peripheral wall of the front end tube body 200. The balloon 300 is connected to the second inflation channel through the inflation hole 221.
[0035] During insertion, the outer wall of the balloon 300 is flush with the outer wall of the front end tube 200. The balloon 300 is designed to be recessed, flush with the surface of the front end tube 200, eliminating the step 222. This makes intubation and extubation easier, reducing pain for patients and facilitating the nurse's operation. The balloon 300 only requires adhesive fixation, eliminating the need for a smooth transition, thus eliminating the time-consuming transition process, thereby improving production efficiency and reducing costs.
[0036] After insertion, the balloon 300 is inflated and fixed in the bladder through the inflation hole 221, connecting the second inflation channel and the first inflation channel 102 to prevent the catheter from falling out. The second drainage channel and the first drainage channel 101 connect to the excretion cavity and the excretion hole, and then connect to the excretion cavity connector of the front tube body 200 and the drainage bag for urination.
[0037] The front end tube body 200 is an integral injection-molded component. The injection-molded front end tube body 200 has already been completed with a plug 210 and punched holes, eliminating the need for punching and plugging 210 again. This eliminates the time-consuming process of punching and gluing the plug 210, thereby improving production efficiency and reducing costs. The urinary catheter includes an injection-molded front end tube body 200 with punched holes and a plug 210. The injection-molded front end tube body 200 has high production efficiency. The portion of the front end tube body 200 where the balloon 300 is glued has a recessed area 220, so that the balloon 300 can be flush with the tube body. The balloon 300 only needs to be glued and fixed, without the need for a smooth transition. In addition, the injection-molded front end tube body 200 has already been completed with a plug 210 and punched holes, eliminating the need for punching and plugging 210 again. This eliminates the time-consuming process of transition, punching, and gluing the plug 210, thereby improving production efficiency and reducing costs. The front end tube body 200 is connected to the connecting tube body 100, and the balloon 300 is sunken into the front end tube and is flush with the surface of the front end tube. In this way, there is no step 222. During the process of intubating and extubating the patient, intubation and extubation are easier, reducing the patient's pain during intubation and extubation, and also facilitating the nurse's operation.
[0038] The main part of the catheter is usually made of materials such as rubber, silicone rubber or polyvinyl chloride. These materials have good biocompatibility and flexibility to reduce irritation and damage to the urethra.
[0039] Further improvement, the connection end is provided with an insert head 230, the insert head 230 is provided with a plurality of annular grooves 231, and glue is provided between the annular grooves 231 and the connecting tube body 100. The glue is evenly distributed on the insert head 230, the connection is more firm, and it can also play a better waterproof role. In another embodiment, referring to Figure 5 and Figure 6 The insertion head 230 is not provided with a plurality of annular grooves 231 , and can be inserted into the connecting pipe body 100 by means of interference fit.
[0040] As a further improvement, the inner wall of the connecting tube body 100 is provided with a boss 110, and the insert head 230 is provided with a groove 232 that matches the boss 110. This improves the firmness of the connection between the connecting tube body 100 and the front end tube body 200 and prevents them from rotating relative to each other. The cross-section of the first inflation channel 102 is crescent-shaped.
[0041] The first inflation channel 102 is provided on the boss 110 and extends axially along the connecting tube body 100. The insertion head 230 is provided with a drainage connection channel, which communicates with the first drainage channel 101 and the second drainage channel, respectively. The first inflation channel 102 and the second inflation channel are provided in a corresponding manner. This ensures connectivity between the channels during installation.
[0042] The first inflation channel 102 does not need to be arranged in the first drainage channel 101, which increases the cross-street area of the first drainage channel 101, making the flow of the first drainage channel 101 larger and the layout more reasonable and compact; otherwise, the first inflation channel 102 is arranged in the first drainage channel 101, reducing the cross-street area of the first drainage channel 101 and occupying the flow of the first drainage channel 101.
[0043] As a further improvement, the two sides of the recessed area 220 are provided with annular steps 222 arranged on the front end tube body 200, and the balloon 300 is attached to the steps 222. After inflation, the spacing between the balloon 300 and the tube wall of the front end tube body 200 is more uniform.
[0044] In this embodiment, the first drainage channel 101 and the first inflation channel 102 are arranged on the same front end tube body 200. In some other embodiments, the first inflation channel 102 can also be a separate thin tube arranged inside the drainage channel, and the balloon 300 can be inflated by injecting saline or air.
[0045] In some other implementations, the front end tube body 200 can be threadedly connected to the connecting tube body 100, and the sealing performance can be controlled: through the precisely designed thread structure and sealing materials, a good sealing effect can be achieved to prevent fluid or gas leakage and ensure the safety and effectiveness of the operation.
[0046] Alternatively, the front tube body 200 and the connecting tube body 100 can be integrated to enhance structural strength: the integrated design eliminates gaps between components, improving the strength and stability of the overall structure, making it particularly suitable for high-pressure, high-speed, or high-stress working environments. The integrated design reduces leakage risk: the lack of connection gaps significantly reduces the risk of leakage, improving product safety and reliability; and simplifies the production process: the integrated design simplifies assembly steps during the production process, improving production efficiency and product quality consistency.
[0047] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A urinary catheter, characterized in that: include: The connecting tube body is provided with a first drainage channel and a first inflation channel; The front end tube body has an insertion end and a connection end at both ends, the insertion end is provided with a plug, the connection end is connected to the connection tube body, the insertion end is provided with at least one drainage hole, the insertion end is provided with a recessed area arranged in an annular manner on the front end tube body, the recessed area is provided with an inflation hole, the front end tube body is provided with a second inflation channel and a second drainage channel, the second drainage channel is connected to the drainage hole and the first drainage channel, the second inflation channel is connected to the inflation hole and the first inflation channel, and the front end tube body is an integral injection molded component; The balloon is arranged in the recessed area, the outer peripheral wall of the balloon is flush with the outer peripheral wall of the front end tube body, and the balloon is connected with the second inflation channel through the inflation hole.
2. A urinary catheter according to claim 1, characterized in that: The connecting end is provided with an inserting head, the inserting head is provided with a plurality of annular grooves, and glue is provided between the annular grooves and the connecting pipe body.
3. A urinary catheter according to claim 2, characterized in that: A boss is provided on the inner wall of the connecting tube body, and a groove matching the boss is provided on the side wall of the insertion head.
4. A urinary catheter according to claim 3, characterized in that: The first air-inflating channel is provided on the boss, and the first air-inflating channel is extended along the axial direction of the connecting tube body.
5. A urinary catheter according to claim 4, characterized in that: The insertion head is provided with a drainage connection channel, and the drainage connection channel is communicated with the first drainage channel and the second drainage channel respectively.
6. A urinary catheter according to claim 4, characterized in that: The first inflation channel and the second inflation channel are arranged correspondingly.
7. A urinary catheter according to claim 6, characterized in that: The cross section of the first inflation channel is crescent-shaped.
8. The urinary catheter according to claim 1, characterized in that: Both sides of the recessed area are provided with an annular step arranged on the front end tube body, and the balloon is adhered to the step.
9. The urinary catheter according to claim 1, characterized in that: The balloon is cylindrical.
10. The urinary catheter according to claim 1, characterized in that: The plug is cone-shaped.