A multifunctional urinary catheter

The snap-fit ​​fixing device and sealing ring design solve the problems of laborious operation and leakage when connecting the urine catheter and urine bag, and realize convenient fixing and safe use of the urine bag.

CN224441802UActive Publication Date: 2026-07-03ANNING FIRST PEOPLES HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANNING FIRST PEOPLES HOSPITAL
Filing Date
2025-08-02
Publication Date
2026-07-03

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Abstract

The utility model relates to medical instrument technical field discloses a multifunctional urinary tract, including urinary tract body, fixing device and urine bag mouth, the two first grooves are established in the center place of urine bag mouth outer end, the fixing device includes the shell, the both sides of shell all are established with the second groove, two the second groove in bottom end one side all are fixedly set up with support rod, two support rod outer end all rotatoryly sleeve -seted with the clamping block, the both sides of shell near two second grooves upper end all are established with the third groove, two the third groove in bottom end all are fixedly set up with spring, two spring upper end all are fixedly set up with the sliding block, the second groove top of shell outer end is established with the sliding slot, the sliding ring is slidingly arranged in the sliding slot, the rotating ring is fixedly arranged on the outer end of the sliding ring, four grooves are arranged on the both sides of the lower end of the rotating ring. In the utility model, the urine bag mouth is fixed by the clamping mode, and the infection risk is conveniently and quickly avoided.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a multifunctional urinary catheter. Background Technology

[0002] A urinary catheter is a tubular medical device made of materials such as rubber, silicone rubber, or polyvinyl chloride (PVC), primarily used to help individuals unable to urinate independently drain urine from their bladders. It is inserted into the bladder to drain urine to a collection device and is suitable for various scenarios: for example, addressing urinary difficulties caused by conditions such as benign prostatic hyperplasia (BPH) or urethral stricture, preventing bladder overdistension and potential injury; assisting in bladder emptying during abdominal and pelvic surgeries to protect organs and monitor urine output; recording urine output for critically ill patients in coma or shock to aid in diagnosis; and collecting sterile urine samples, or supporting the urethra and promoting healing after urethral surgery or wound recovery. Strict aseptic technique must be maintained during use to minimize the risk of infection, and the catheter should be adjusted or removed promptly according to the patient's condition.

[0003] While threaded connections between urinary catheters and urine bags are common, they have several drawbacks: they require tightening during operation, which can be time-consuming and laborious in emergencies or when the operator's hands are not readily available; if the threads are not tightened, worn, or loosened due to patient movement, urine leakage can easily occur, contaminating clothing and bedding and increasing the risk of infection; contaminants can easily remain in the thread gaps, and repeated operations may disrupt the sterile environment, exacerbating the risk of infection.

[0004] Therefore, those skilled in the art have provided a multifunctional urinary catheter to address the problems mentioned in the background section. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multifunctional urine catheter that uses a snap-fit ​​method to fix the urine bag opening, making it convenient, quick, and avoiding the risk of infection.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A multifunctional urinary catheter includes a catheter body, a fixing device, and a urine bag opening, wherein two No. 1 grooves are formed at the center of the outer end of the urine bag opening;

[0008] The fixing device includes a housing. Two slots are formed on both sides of the housing. A support rod is fixedly installed on one side of the bottom of each of the two slots. A locking block is rotatably fitted onto the outer end of each of the two support rods. Three slots are formed on the upper ends of both sides of the housing near the two slots. Springs are fixedly installed at the bottom of each of the two slots. A slider is fixedly installed at the upper end of each of the springs. A sliding groove is formed above the two slots on the outer end of the housing. A sliding ring is slidably installed inside the sliding groove. A rotating ring is fixedly installed at the outer end of the sliding ring. Four slots are formed on both sides of the lower end of the rotating ring. Sliding rods are fixedly installed on both sides of the lower end of the rotating ring. A drain port is fixedly installed at the top of the inner end of the housing.

[0009] Furthermore, a sealing ring is fixedly provided at the outer end of the drainage port, and the sealing ring is fixedly provided at the inner top of the outer shell.

[0010] Furthermore, the two fourth slots are located in the middle between the two slide rods, and the two slide rods are movably disposed at the inner ends of the two second slots.

[0011] Furthermore, the two slide bars are movably disposed between the housing and the two locking blocks, and the two sliders are movably disposed at the inner ends of the two fourth slots.

[0012] Furthermore, the outer shell is fixedly installed at the outlet of the urinary catheter body, and the opening of the urinary bag is movably installed at the outer end of the drainage port.

[0013] Furthermore, each of the two card blocks has two protrusions fixedly provided at one end opposite to the other, and all four protrusions are movably provided inside the two No. 1 slots.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model proposes a multifunctional urine catheter. The urine bag opening is secured using a convenient snap-fit ​​design, making operation extremely simple. When the urine bag needs to be disassembled, simply rotate the rotating ring to move the two locking blocks, allowing the urine bag opening to easily detach from the fixing device. Fixing the urine bag is equally simple: insert the urine bag opening, then rotate the rotating ring in the opposite direction to precisely insert the slider into the third groove at its lower end. The locking blocks will then lock in place, firmly securing the urine bag opening to the first groove, thus achieving a stable fixation. This design not only provides reliable fixation but also greatly simplifies the loading and unloading process of the urine bag, bringing convenience to users.

[0016] 2. This utility model proposes a multifunctional urine catheter, in which a drainage port and a sealing ring are fixedly provided on the inner side of the outer shell. The drainage port is inserted into the opening of the urine bag, and the sealing ring is tightly fitted to the upper end of the opening of the urine bag. This double sealing structure can effectively block the leakage path of urine, ensuring cleanliness and hygiene during use, and reducing the risk of infection caused by urine leakage from the source, further improving the safety and reliability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 This is an enlarged schematic diagram of the fixing device of this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the fixing device of this utility model;

[0020] Figure 4 This is a cross-sectional view of the lower part of the outer shell of this utility model;

[0021] Figure 5 This is a cross-sectional view of the upper part of the outer shell of this utility model;

[0022] Figure 6 This is a schematic diagram of the rotating part of this utility model;

[0023] Figure 7 This is a schematic diagram of the urine bag opening of this utility model;

[0024] Figure 8 This is a cross-sectional view of the present invention during fixing;

[0025] Figure 9 This is a schematic diagram of the overall outer shell of this utility model.

[0026] Legend:

[0027] 1. Urinary catheter body; 2. Fixing device; 201. Support rod; 202. Locking block; 203. No. 2 groove; 204. No. 3 groove; 205. Spring; 206. Slider; 207. Outer shell; 208. Slide groove; 209. Sealing ring; 210. Drainage port; 211. Slip ring; 212. Rotating ring; 213. No. 4 groove; 214. Slide rod; 3. Urinary bag opening; 4. No. 1 groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1 and Figure 7 One embodiment of this utility model is a multifunctional urinary catheter, including a urinary catheter body 1, a fixing device 2 and a urinary bag opening 3, with two No. 1 grooves 4 opened at the center of the outer end of the urinary bag opening 3;

[0030] Specifically, the urinary catheter body 1 is a three-line urinary catheter. A three-line urinary catheter is a specialized instrument designed for complex urinary tract care needs in clinical practice. Its core feature is the integration of three independent channels: the main channel is responsible for urine drainage, ensuring smooth drainage of urine from the bladder to the urine bag; the balloon channel inflates the balloon at the tip by injecting water or air, achieving stable fixation of the catheter within the bladder and preventing displacement; the irrigation / irrigation channel allows direct injection of saline solution into the bladder for irrigation or infusion of therapeutic drugs, which not only cleanses the bladder and prevents blockage and infection but also improves the effectiveness of local drug administration. It is especially suitable for patients requiring continuous postoperative care, bladder infections, or local drug treatment, reducing the risk of injury from repeated intubation and significantly improving nursing efficiency and safety. The urine bag opening 3 is the interface on the urine bag used for connecting to the urinary catheter.

[0031] Reference Figures 2 to 6 , Figure 8 and Figure 9 The fixing device 2 includes a housing 207. Two slots 203 are provided on both sides of the housing 207. A support rod 201 is fixedly installed on one side of the bottom end of each of the two slots 203. A locking block 202 is rotatably fitted onto the outer end of each of the two support rods 201. Three slots 204 are provided on the upper ends of both sides of the housing 207 near the two slots 203. Springs 205 are fixedly installed at the bottom end of each of the two slots 204. A slider 206 is fixedly installed at the upper end of each of the two springs 205. A sliding groove 208 is provided above the two slots 203 at the outer end of the housing 207. A sliding ring 211 is slidably installed at the inner end of the sliding groove 208. A rotating ring 212 is fixedly installed at the outer end of the sliding ring 211. Four slots 213 are provided on both sides of the lower end of the rotating ring 212. Sliding rods 214 are fixedly installed on both sides of the lower end of the rotating ring 212. A drain port 210 is fixedly installed at the top end of the housing 207.

[0032] Specifically, the protrusions at opposite ends of the two locking blocks 202 are shaped and sized to precisely fit into slot 4. The exposed portion of the slider 206 is semi-circular, fitting perfectly into slot 213, thus securely locking the rotating ring 212 and effectively preventing the urine bag opening 3 from detaching due to slight contact. Simultaneously, the semi-circular design at the upper end of the slider 206 allows for easy disassembly by applying only slight force to rotate the rotating ring 212. The rotating ring 212 is slightly smaller than the outer shell 207, providing some protection against accidental contact. The slip ring 211 and the slide groove 208 employ a T-shaped design to prevent detachment. When the rotating ring 212 is rotated, the slip ring 211 slides and rotates synchronously within the slide groove 208, thereby driving the sliding rod 214 and other components at the lower end of the rotating ring 212 to move and reset the locking blocks 202 in conjunction with other structures. This ultimately completes the fixing and disassembly of the urine bag opening 3, forming the core component combination for operational transmission in the fixing device 2. When the slide bar 214 rotates to the inner wall of the second slot 203 near the support rod 201, the two locking blocks 202 are in an active state. However, when the two locking blocks 202 rotate toward the inner end of the outer casing 207, the end of the locking block 202 away from the support rod 201 will stick to the inner wall of the second slot 203 away from the support rod 201.

[0033] Reference Figures 1 to 9 A sealing ring 209 is fixedly installed at the outer end of the drainage port 210. The sealing ring 209 is fixedly installed at the inner top of the outer shell 207. Two fourth grooves 213 are opened in the middle between the two slide rods 214. The two slide rods 214 are movably installed at the inner ends of the two second grooves 203. The two slide rods 214 are movably installed between the outer shell 207 and the two locking blocks 202. Two sliders 206 are movably installed at the inner ends of the two fourth grooves 213. The outer shell 207 is fixedly installed at the urine outlet of the urine catheter body 1. The urine bag opening 3 is movably installed at the outer end of the drainage port 210. Two protrusions are fixedly installed at opposite ends of the two locking blocks 202. The four protrusions are movably installed at the inner ends of the two first grooves 4.

[0034] Specifically, when rotating the rotating ring 212, the slide rod 214 moves between the locking block 202 and the outer shell 207. When the slide rod 214 rotates to the inner wall of the side near the support rod 201 at the inner end of the second groove 203, the urine bag opening 3 is pulled out, and the protrusion is pushed to make the locking block 202 rotate backward and stick to the outer shell 207. At this time, the protrusion at the upper end of the locking block 202 will not block the urine bag opening 3. The drainage port 210 can just enter the inner end of the urine bag opening 3. When the urine bag opening 3 is movably set at the outer end of the drainage port 210, the sealing ring 209 will fit tightly with the upper end of the urine bag opening 3. This design can form a reliable sealing structure, effectively preventing urine from leaking out from the connection between the drainage port 210 and the urine bag opening 3, ensuring cleanliness and hygiene during use, reducing the risk of infection caused by urine leakage, and enhancing the safety of the device. The sealing ring 209 is usually made of medical-grade silicone. Medical-grade silicone has excellent elasticity and sealing properties, which can fit tightly to the opening of the urine bag 3, ensuring a stable sealing effect. In addition, medical-grade silicone is also resistant to aging and liquid corrosion, which can maintain stable performance during long-term use and extend the service life of the device.

[0035] Working principle: When fixing the urine bag, first rotate the rotating ring 212. The rotating ring 212 moves in a circular motion along the sliding groove 208 against the outer shell 207 via the sliding ring 211. At this time, the two sliders 206 are compressed by the spring 205 and retract into the third groove 204. Rotate the rotating ring 212 until the two sliding rods 214 move to the inner wall of the second groove 203 near the support rod 201. At this time, the locking block 202 is in an active state. Then insert the urine bag opening 3 so that the drainage port 210 extends into the inner end of the urine bag opening 3, and the upper end of the urine bag opening 3 is tightly fitted with the sealing ring 209. Then rotate the rotating ring 212 in the opposite direction, driving the two sliding rods 214 to move. During the movement, the sliding rods 214 compress and push the locking block 202, so that its protrusion is completely locked into the first groove 4. Once slot 3 204 and slot 4 213 are aligned, spring 205 pushes slider 206 into slot 4 213, fixing rotating ring 212 and completing the installation of the urine bag. For replacement, simply rotate rotating ring 212 again and pull out the urine bag opening 3.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 multifunctional urinary catheter, comprising a catheter body (1), a fixing device (2), and a urine bag opening (3), characterized in that: Two slots (4) are provided at the center of the outer end of the urine bag opening (3); The fixing device (2) includes a housing (207), on both sides of the housing (207) are provided with second slots (203), and a support rod (201) is fixedly installed on one side of the bottom end of each of the two second slots (203). A locking block (202) is rotatably sleeved on the outer end of each of the two support rods (201). A third slot (204) is provided on the upper ends of both sides of the housing (207) near the two second slots (203), and a spring (205) is fixedly installed at the bottom end of each of the two third slots (204). 05) A slider (206) is fixedly installed at the upper end. A sliding groove (208) is opened above the second groove (203) at the outer end of the outer shell (207). A sliding ring (211) is slidably installed at the inner end of the sliding groove (208). A rotating ring (212) is fixedly installed at the outer end of the sliding ring (211). A fourth groove (213) is opened on both sides of the lower end of the rotating ring (212). A sliding rod (214) is fixedly installed on both sides of the lower end of the rotating ring (212). A drain port (210) is fixedly installed at the top of the inner shell (207).

2. The multi-functional urinary catheter according to claim 1, wherein: A sealing ring (209) is fixedly provided at the outer end of the drainage port (210), and the sealing ring (209) is fixedly provided at the inner top of the outer shell (207).

3. The multi-functional urinary catheter according to claim 1, wherein: The two fourth slots (213) are located in the middle between the two slide rods (214), and the two slide rods (214) are movably arranged inside the two second slots (203).

4. The multi-functional urinary catheter according to claim 3, wherein: The two slide bars (214) are movably disposed between the housing (207) and the two locking blocks (202), and the two sliders (206) are movably disposed at the inner ends of the two slots (213).

5. The multi-functional urinary catheter according to claim 1, wherein: The outer shell (207) is fixedly installed at the outlet of the urine tube body (1), and the urine bag opening (3) is movably installed at the outer end of the drainage port (210).

6. The multi-functional urinary catheter according to claim 1, wherein: Each of the two card blocks (202) has two protrusions fixedly arranged at one end, and the four protrusions are movably arranged in the inner ends of the two slots (4).