A blocked line early warning device for bladder irrigation
By designing a regulating tube and a fixed cap, combined with a flow meter and an alarm, the problem of early detection of catheter blockage is solved, enabling early warning and unblocking, and improving the safety and patient comfort of bladder irrigation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-16
- Publication Date
- 2026-04-07
AI Technical Summary
Existing urinary catheters are prone to blockage during bladder irrigation due to blood clots or tissue fragments, making early detection difficult. This leads to continuous infusion of irrigation fluid, causing swelling in the patient, and there is a lack of effective early warning and anti-blockage measures.
A bladder irrigation tube blockage early warning device was designed. By controlling the movement of the regulating tube and the fixed cap, the connection between the infusion pipeline and the drainage passage is controlled. Combined with a flow meter and an alarm, it can realize early warning and clearing of blockage and prevent the occurrence of blockage.
It enables early warning and unblocking of urinary catheters, reduces the severity of blockage, and improves patient comfort and treatment outcomes.
Smart Images

Figure CN117085191B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and more specifically to a bladder irrigation tube blockage warning device. Background Technology
[0002] Bladder irrigation refers to the process of using a catheter to instill irrigation fluid into the patient's bladder and then draining it through the outlet on the catheter to clear blood clots, mucus, bacteria, and other foreign objects from the patient's bladder.
[0003] During the flushing process, existing urinary catheters are prone to blockage due to blood clots or tissue fragments that may be present in the patient's bladder. Because the catheter is located inside the body, it is difficult to detect the blockage in its early stages. As a result, even when the catheter is already blocked, the infusion end continues to deliver flushing fluid until the patient experiences significant swelling, which alerts medical staff to the potential blockage. Therefore, there is a need for a bladder flushing catheter blockage warning device that can provide early warning of blockage and prevent further blockage. Summary of the Invention
[0004] To address the shortcomings of existing technologies, the present invention aims to provide a bladder irrigation catheter blockage early warning device. This device can effectively provide early warning of catheter blockage and clear the blockage after it occurs, thereby improving the patient's treatment outcome.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a bladder irrigation tube blockage early warning device, comprising a tube body, one end of which forms a plug for insertion into the urethra, and the other end being a connecting end fitted with a fixing cap. The tube body has a drainage passage and an infusion passage surrounding the drainage passage. The fixing cap has a first chamber and a second chamber, which are respectively connected to the drainage passage and the infusion passage. The outer wall of the fixing cap has a first opening and a second opening arranged vertically along the axis of the fixing cap, which are respectively connected to the first chamber and the second chamber. The device also includes a regulating tube and an infusion pipe. The regulating tube is fitted with the fixing cap, and its inner wall has a regulating chamber. The infusion pipe is connected to the regulating chamber. When the regulating tube moves along the axis of the fixing cap, the regulating chamber is connected to the first opening and the second opening. The device also includes a drainage pipe, one end of which is connected to the drainage passage, and the other end is connected to a flow meter. The fixing cap has an alarm; when the flow meter detects that the drainage volume in the drainage passage is lower than a predetermined flow rate, the alarm sounds.
[0006] The control tube has a first position and a second position:
[0007] When in the first position, the control chamber is connected to the second opening, so that the infusion tubing is connected to the infusion passage through the control chamber, the second opening and the second chamber, for the purpose of infusing flushing fluid into the bladder;
[0008] When in the second position, the control chamber is connected to the first opening, so that the infusion pipeline is connected to the drainage passage through the control chamber, the first opening and the first chamber, for introducing flushing fluid into the drainage passage to clear blockage.
[0009] As a further improvement of the present invention, the tube body includes a first tube and a second tube that are sequentially sleeved together. One end of the first tube and the second tube is provided with an annular fixing card. The fixing cover is provided with a slot corresponding to the fixing card. The slot is used to engage with the fixing card.
[0010] As a further improvement of the present invention, the second chamber is arranged around the first chamber.
[0011] As a further improvement of the present invention, an inspection port is formed at the end of the first chamber away from the tube body, and a cover is provided at the inspection port, the cover being detachably connected to the inspection port.
[0012] As a further improvement of the present invention, the fixing cover and / or the fixing cover and / or the regulating tube are made of transparent material.
[0013] As a further improvement of the present invention, the number of control chambers is two and they are arranged vertically along the axis of the control tube. The two control chambers are used to connect to the first opening and the second opening respectively. The control tube is provided with connection ports that connect to the two control chambers respectively. The infusion pipe and the drainage pipe are respectively connected to the two connection ports.
[0014] As a further improvement of the present invention, the tube body is provided with a first annular groove on both the upper and lower sides corresponding to the first opening and the second opening. An elastic sealing ring is provided in the first annular groove. The control tube is provided with a second annular groove corresponding to the first annular groove. When the second annular groove and the first annular groove correspond to each other, the sealing ring is respectively engaged with the first annular groove and the second annular groove. The relative positions of the control tube and the tube body are fixed.
[0015] As a further improvement of the present invention, the drainage passage and the infusion passage have the same projected area.
[0016] The beneficial effects of this invention are:
[0017] This invention achieves control over the connection between the infusion pipeline and the drainage channel and the infusion passage by using the relative movement of the regulating tube and the fixed cover. In the event of a blockage in the drainage pipeline, the infusion pipeline can be connected to the drainage passage to clear the blockage and achieve an anti-blockage effect.
[0018] By setting up flow meters and alarms, the amount of fluid discharged through the drainage pathway can be monitored in real time, thereby providing early warning of bladder irrigation tube blockage and allowing for early intervention. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall invention;
[0020] Figure 2 This is a schematic cross-sectional view of the overall installation of the present invention;
[0021] Figure 3 This is a schematic diagram of the card slot of the present invention;
[0022] Figure 4 for Figure 2 Enlarged view of a portion of point A in the middle;
[0023] Figure 5 This is a schematic diagram of the first opening and the second opening of the present invention;
[0024] Figure 6 This is a schematic cross-sectional view of the installation of the fixed cover and the regulating pipe of the present invention.
[0025] Reference numerals: 1. Tube body; 2. Plug; 3. Fixing cap; 4. Drainage passage; 5. Infusion passage; 6. First chamber; 7. Second chamber; 8. First opening; 9. Second opening; 10. Control tube; 11. Infusion pipeline; 12. Control chamber; 13. Drainage pipeline; 14. Flow meter; 15. Alarm; 16. First fitting; 17. Second fitting; 18. Third fitting; 19. Fixing clip; 20. Slot; 21. Bag body; 22. Water injection passage; 23. Inspection port; 24. Cap; 25. Connection port; 26. First annular groove; 27. Sealing ring; 28. Second annular groove. Detailed Implementation
[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals.
[0027] like Figure 1-6As shown, a bladder irrigation tube blockage warning device includes a tube body 1. One end of the tube body 1 forms a plug 2 for insertion into the urethra, and the other end is a connecting end fitted with a fixing cap 3. The tube body 1 has a drainage passage 4 and an infusion passage 5 arranged around the drainage passage 4. The surrounding infusion passage 5 allows the drainage passage 4 to have a sufficiently large size to facilitate the passage of blood clots or tissue fragments. The fixing cap 3 has a first chamber 6 and a second chamber 7, which are respectively connected to the drainage passage 4 and the infusion passage 5. The outer wall of the fixing cap 3 has a first opening 8 and a second opening 9 arranged vertically along the axis of the fixing cap 3. The first opening 8 and the second opening 9 are respectively connected to the first chamber 6 and the second chamber 7. In order to increase the flow rate of the first opening 8 and the second opening 9, the first opening 8 and the second opening 9 are both multiple annular grooves arranged intermittently.
[0028] Preferably, it also includes a control tube 10 and an infusion pipeline 11. The control tube 10 is fitted with a fixed cover 3. The inner wall of the control tube 10 has a control chamber 12, which is annular. The infusion pipeline 11 is connected to the control chamber 12. When the control tube 10 moves along the axis of the fixed cover 3, the control chamber 12 is connected to the first opening 8 and the second opening 9 respectively.
[0029] Preferably, it also includes a drain pipe 13, one end of which is connected to the drain passage 4, and the other end is connected to a flow meter 14. An alarm 15 is provided on the fixed cover 3. When the flow meter 14 detects that the amount of liquid discharged in the drain passage 4 is lower than the predetermined flow rate, the alarm 15 will sound an alarm. The flow rate detected by the flow meter 14 is the flow rate per minute. The preferred model of the flow meter 14 is M2.1AL / M2.1SS.
[0030] In the initial state, the control chamber 12 is connected to the second opening 9. At this time, the infusion tubing 11 introduces flushing fluid into the infusion passage 5, and the flushing fluid in the bladder is drawn out through the drainage tubing 13 connected to the drainage passage 4. Meanwhile, the flow meter 14 detects whether the flow rate per unit minute is normal. When the flow meter 14 detects that the flow rate per unit time is lower than a predetermined value, the alarm 15 sounds an alarm. Medical staff adjust the control tube 10 so that the control chamber 12 is connected to the first opening 8, that is, the infusion tubing 11 is connected to the drainage passage 4, and then the flushing fluid is drawn out through the infusion tubing 11. Fluid is introduced into the drainage passage 4 to flush out any blockages. After flushing, the control tube 10 is moved again to connect the infusion pipeline 11 and the infusion passage 5, returning them to normal operation. The control tube 10 enables the connection between the infusion pipeline 11 and the drainage passage 4 or the infusion passage 5, thereby achieving the infusion and flushing / anti-blockage functions of the infusion pipeline 11. At the same time, the flow meter 14 and the alarm 15 can provide an alarm for the early stages of blockage, thereby reducing the severity of subsequent blockages and improving patient comfort and treatment effectiveness.
[0031] Preferably, the tube body 1 includes a first tube 16, a second tube 17, and a third tube 18 sequentially sleeved. Each of the first tube 16, the second tube 17, and the third tube 18 has an annular fixing clip 19 at one end. The fixing cap 3 has a slot 20 corresponding to the fixing clip 19, which is used to engage with the fixing clip 19. The drainage passage 4 is located inside the first tube 16, and the infusion passage 5 is the gap between the first tube 16 and the second tube 17. One end of the third tube 18 forms a spherical sac 21. The gap between the third tube 18 and the second tube 17 forms a water injection passage 22, through which water is injected into the sac 21 so that the sac 21 is expanded and fixed in the human body. The fixing clip 19 and the slot 20 enable the fixing cap 3 to be adapted to most catheters, making it widely applicable.
[0032] Preferably, in order to accommodate the infusion passage 5 and the drainage passage 4, the second chamber 7 is arranged around the first chamber 6, thereby ensuring that the drainage line has a sufficient cross-section to discharge blood clots or tissue fragments.
[0033] Preferably, an inspection port 23 is formed at the end of the first chamber 6 away from the tube body 1. A cover 24 is provided at the inspection port 23. The cover 24 is detachably connected to the inspection port 23. The detachable connection includes snap-fit, threaded connection and interference fit. Threaded connection is preferred. In use, when the area around the first chamber 6 is blocked, the area can be cleaned by opening the inspection port 23. The cover 24 ensures that the first opening 8 is the only outlet of the first chamber 6 under normal conditions, thereby preventing the flushing fluid from leaking out.
[0034] Preferably, in order to facilitate medical staff to observe the location of the blockage, the fixing cover 3 and / or the fixing cover 3 and / or the regulating tube 10 are made of transparent material. It is possible to choose one or two of the fixing cover 3, the fixing cover 3 and the regulating tube 10 to be made of transparent material, or the fixing cover 3, the fixing cover 3 and the regulating tube 10 can all be made of transparent material.
[0035] Preferably, there are two control chambers 12 arranged vertically along the axis of the control tube 10. The two control chambers 12 are used to connect the first opening 8 and the second opening 9 respectively. The control tube 10 is provided with connection ports 25 for connecting the two control chambers 12 respectively. The infusion pipeline 11 and the drainage pipeline 13 are respectively connected to the two connection ports 25. By setting the two control chambers 12, the infusion pipeline 11 and the drainage passage 4 can be connected separately after the control tube 10 moves, thereby ensuring the impact force of the infusion pipeline 11 on the blockage of the drainage passage 4.
[0036] Preferably, the tube body 1 has a first annular groove 26 on both the upper and lower sides corresponding to the first opening 8 and the second opening 9. An elastic sealing ring 27 is provided in the first annular groove 26. The control tube 10 has a second annular groove 28 corresponding to the first annular groove 26. When the second annular groove 28 and the first annular groove 26 correspond to each other, the sealing ring 27 is respectively engaged with the first annular groove 26 and the second annular groove 28. The relative position of the control tube 10 and the tube body 1 is fixed. The sealing effect is ensured by the setting of the sealing ring 27, and it can also cooperate with the engagement of the first annular groove 26 and the second annular groove 28. When the control tube 10 moves, the operator can judge the position of the control tube 10 by the tactile feeling brought by the engagement of the sealing ring 27, thereby improving practicality.
[0037] Preferably, in order to make the flow rates of the drainage passage 4 and the infusion passage 5 similar, so as to avoid excessive retention of the flushing fluid in the bladder, the projected areas of the drainage passage 4 and the infusion passage 5 are the same.
[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A bladder irrigation tube blockage warning device, characterized in that: The tube (1) includes a tube body (1), one end of which forms a plug (2) for insertion into the urethra, and the other end is a connecting end and fitted with a fixing cap (3). The tube body (1) has a drainage passage (4) and an infusion passage (5) arranged around the drainage passage (4). The fixing cap (3) has a first chamber (6) and a second chamber (7). The first chamber (6) and the second chamber (7) are respectively connected to the drainage passage (4) and the infusion passage (5). The outer wall of the fixing cap (3) has a first opening (8) and a second opening (9) arranged vertically along the axis of the fixing cap (3). The first opening (8) and the second opening (9) are respectively connected to the first chamber (6) and the second chamber (7). It also includes a control tube (10) and an infusion pipeline (11). The control tube (10) is fitted with a fixed cover (3). The inner wall of the control tube (10) is provided with a control chamber (12). The infusion pipeline (11) is connected to the control chamber (12). When the control tube (10) moves along the axis of the fixed cover (3), the control chamber (12) is connected to the first opening (8) and the second opening (9) respectively. It also includes a drain pipe (13), one end of which is connected to the drain passage (4), and the other end is connected to a flow meter (14). An alarm (15) is provided on the fixed cover (3). When the flow meter (14) detects that the amount of liquid discharged in the drain passage (4) is lower than the predetermined flow rate, the alarm (15) will sound an alarm. The control tube (10) has a first position and a second position: When in the first position, the control chamber (12) is connected to the second opening (9), so that the infusion tubing (11) is connected to the infusion passage (5) through the control chamber (12), the second opening (9) and the second chamber (7) for injecting flushing fluid into the bladder; When in the second position, the control chamber (12) is connected to the first opening (8), so that the infusion pipeline (11) is connected to the drainage passage (4) through the control chamber (12), the first opening (8) and the first chamber (6), for inputting flushing fluid into the drainage passage (4) to clear blockage.
2. The bladder irrigation tube blockage early warning device according to claim 1, characterized in that: The tube body (1) includes a first tube fitting (16) and a second tube fitting (17) that are sequentially fitted together. One end of the first tube fitting (16) and the second tube fitting (17) is provided with an annular fixing card (19). The fixing cover (3) is provided with a card slot (20) corresponding to the fixing card (19). The card slot (20) is used to engage with the fixing card (19).
3. The bladder irrigation tube blockage early warning device according to claim 2, characterized in that: The second chamber (7) is arranged around the first chamber (6).
4. A bladder irrigation tube blockage early warning device according to claim 3, characterized in that: An inspection port (23) is formed at the end of the first chamber (6) away from the tube body (1). A cover (24) is provided at the inspection port (23), and the cover (24) is detachably connected to the inspection port (23).
5. A bladder irrigation tube blockage early warning device according to claim 1, characterized in that: The fixing cover (3) and / or the fixing cover (3) and / or the regulating tube (10) are made of transparent material.
6. A bladder irrigation tube blockage early warning device according to claim 1, characterized in that: The number of control chambers (12) is 2 and they are arranged up and down along the axis of the control tube (10). The two control chambers (12) are used to connect the first opening (8) and the second opening (9) respectively. The control tube (10) is provided with connection ports (25) for connecting the two control chambers (12) respectively. The infusion pipe (11) and the drainage pipe (13) are connected to the two connection ports (25) respectively.
7. A bladder irrigation tube blockage early warning device according to claim 1, characterized in that: The tube body (1) is provided with a first annular groove (26) on both the upper and lower sides corresponding to the first opening (8) and the second opening (9). An elastic sealing ring (27) is provided in the first annular groove (26). The control tube (10) is provided with a second annular groove (28) corresponding to the first annular groove (26). When the second annular groove (28) and the first annular groove (26) correspond to each other, the sealing ring (27) is respectively engaged with the first annular groove (26) and the second annular groove (28). The relative positions of the control tube (10) and the tube body (1) are fixed.
8. A bladder irrigation tube blockage early warning device according to claim 1, characterized in that: The drainage passage (4) and the infusion passage (5) have the same projected area.
Citation Information
Patent Citations
Automatic urinary sediment rinsing machine with negative pressure decompression protection function and application method
CN107670132A
Anti-blocking bladder irrigator
CN213642486U