A urinary surgery bladder irrigation device and method of use
By employing a pre-treatment mechanism with anti-clogging features such as swirl blades and a pulverizing roller, along with an automatic unblocking function, the problem of untimely clogging monitoring in bladder irrigation devices is solved. This enables automatic unblocking and efficient irrigation, reducing the burden on medical staff and patient discomfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LONGNAN FIRST PEOPLES HOSPITAL
- Filing Date
- 2026-05-16
- Publication Date
- 2026-07-14
Smart Images
Figure CN122376901A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, specifically to a bladder irrigation device for urology. Background Technology
[0002] Bladder irrigation is one of the most common postoperative treatments in urology, widely used after transurethral resection of the prostate (TURP) for conditions such as benign prostatic hyperplasia (BPH) and bladder tumors. Its main purpose is to remove blood clots and mucus from the bladder, maintain unobstructed urine drainage, and prevent complications such as urinary tract infections and bladder spasms. Continuous bladder irrigation typically uses a three-lumen catheter, with irrigation fluid continuously dripping through one lumen and drainage fluid draining through the other, achieving continuous bladder cleansing. Currently, the standard clinical procedure involves suspending a saline bag on an IV stand and connecting it to the irrigation lumen of the three-lumen catheter via tubing. The irrigation fluid flows into the bladder by gravity, while the drainage fluid flows from the catheter's drainage lumen into a drainage bag.
[0003] However, blood clots blocking the urinary catheter are one of the most common complications during bladder irrigation. The incidence of catheter blockage during bladder irrigation after transurethral resection of bladder tumors is relatively high and should not be ignored. Once blockage occurs, it not only affects the irrigation effect but can also lead to a sharp increase in intravesical pressure, bladder spasms, and even secondary bleeding and urinary tract infections.
[0004] Publication number CN118490925A discloses a bladder irrigation system, which mainly includes an irrigation fluid storage component, an irrigation pipeline, a drainage pipeline, a urinary catheter, and a control component. It can realize constant temperature control, flow rate adjustment, and irrigation mode switching of the irrigation fluid. By monitoring parameters such as temperature and flow rate of the irrigation fluid through the control component, the stability and comfort of irrigation are improved.
[0005] While the above solution addresses the inaccurate temperature and flow control issues of traditional flushing devices and optimizes the flushing experience, it still has significant technical drawbacks: the solution cannot monitor tube blockage in real time, and it is only detected when drainage is completely interrupted or the patient experiences severe discomfort. By this time, severe bladder tamponade has often already occurred. Currently, when dealing with tube blockage, a syringe is typically used to inject some flushing fluid into the drainage channel for backflushing. This operation not only fails to promptly determine whether the drainage channel has been restored to patency, but also causes a sharp increase in bladder pressure, resulting in severe discomfort for the patient. This not only increases the workload of medical staff but may also lead to related complications due to untimely unblocking. Summary of the Invention
[0006] To address the aforementioned problems, this invention aims to provide a bladder irrigation device for urology, which can pre-break up blood clots in the bladder, reducing the incidence of blockage from the source. At the same time, it can monitor the blockage status of the drainage channel in real time and automatically initiate a backflushing and unblocking operation when blockage occurs, without manual intervention, reducing the workload of medical staff and ensuring the safety, continuity and efficiency of the irrigation process.
[0007] The main idea of the technical solution adopted in this invention is as follows: This invention uses a pre-treatment mechanism with swirling blades and a crushing roller to pre-break up blood clots in the bladder, reducing the risk of blockage at the source. At the same time, an automatically responsive anti-blockage control mechanism monitors the status of the drainage channel in real time. When a blockage occurs, an automatic backflushing function is triggered by a preset pressure threshold to achieve autonomous unblocking. Overall, this invention achieves a full-process anti-blockage effect of "pre-prevention - real-time monitoring - automatic unblocking", which reduces the workload of medical staff and improves the safety and efficiency of bladder irrigation.
[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A urological bladder irrigation device, comprising: Piping system, including inlet piping assembly and drain assembly; The urinary catheter has an inner lumen divided into an independent inlet channel and an outlet channel. The distal end of the inlet channel is connected to the bladder, and the distal end of the outlet channel is connected to an anti-blockage pretreatment mechanism. The anti-blockage control mechanism is connected between the pipeline system and the catheter to monitor potential blockages in the drainage channel in real time and automatically clear the drainage channel.
[0009] Furthermore, based on the above technical solutions, the anti-blocking pretreatment mechanism includes: A conical pulverizing chamber is connected to the distal end of the drainage channel; The swirl blades are rotatably mounted inside the conical grinding chamber; The pulverizing roller is connected to the side of the swirl vanes away from the catheter.
[0010] Furthermore, the liquid inlet pipeline assembly includes a flushing fluid collection bag, a liquid inlet pipe, and a temperature regulating component, based on the above technical solutions.
[0011] Furthermore, the drainage component includes a waste liquid collection bag, a drainage pipe, and a flow regulating component, based on the above technical solutions.
[0012] Furthermore, based on the above technical solutions, the anti-blocking control mechanism includes: The control block has an internal adjustment cavity. One side of the adjustment cavity forms a first communication channel with the liquid inlet pipe and the liquid inlet channel, and the other side forms a second communication channel with the liquid outlet pipe and the liquid outlet channel. The blocking block is fixedly installed inside the regulating cavity via the regulating shaft; An adjusting plate is located at the bottom of the sealing block and is rotatably connected to the adjusting shaft, and an adjusting groove is provided on it; A torsion spring is embedded inside the adjustment groove, with one end connected to the adjustment plate and the other end connected to the control block; The limiting rod slides through the control block and the adjusting plate, and its top extends to the upper side of the control block.
[0013] Furthermore, through the above technical solution, the side wall of the first connecting channel is provided with a first locking groove, and the side wall of the second connecting channel is provided with a second locking groove.
[0014] Furthermore, through the above technical solution, one end of the regulating plate is provided with a backflow channel, and a pressure regulating one-way valve is provided inside the backflow channel. The conduction direction of the pressure regulating one-way valve is from the first connecting channel to the second connecting channel.
[0015] This application also discloses a method of using a bladder irrigation device for urology, including the following steps: S1. Insert the distal end of catheter 3 into the patient's bladder; S2. Inject flushing fluid, adjust the temperature and flow rate of flushing fluid, and insert the limiting rod 55 into the limiting groove 532 to fix the adjusting piece 53, so that the first connecting channel 512 and the second connecting channel 513 remain open. S3. After the flushing fluid and waste fluid have stabilized, pull out the limiting rod 55. During the flushing process, the waste fluid in the bladder carries the blood clot into the conical crushing chamber 41. The crushing roller 43 is driven to rotate by the swirl vane 42 to break up the blood clot. After the blood clot is broken up, it is discharged into the waste fluid collection bag 21 through the drainage channel 32 and the second connecting channel 513, thus achieving pre-blocking. S4. When the drain channel 32 is blocked, the torsion spring 54 drives the regulating plate 53 to rotate clockwise and lock into the locking groove, closing the main passage of the two connecting channels. After the pressure of the first connecting channel 512 reaches the threshold, the pressure regulating check valve 57 opens, and the flushing liquid flushes the blocked part in the reverse direction through the backflushing channel 56. After the blockage is cleared, the regulating plate 53 is reset, the pressure regulating check valve 57 is closed, and the device resumes normal flushing.
[0016] The beneficial effects of this invention are: 1. This invention, by setting up an anti-blockage pretreatment mechanism, pre-breaks up blood clots in the bladder, thereby preventing the accumulation of blood clots from causing pipeline blockage and effectively reducing the incidence of blockage.
[0017] 2. This invention, by setting up an anti-blockage control mechanism, can monitor the drainage status in real time. When a blockage occurs, it will automatically start backflushing to clear the blockage without manual intervention, which greatly reduces the workload of medical staff and avoids delays in treatment caused by untimely manual clearing.
[0018] 3. By incorporating temperature and flow rate regulators, this invention allows for the adjustment of the temperature and flow rate of the irrigation fluid and waste fluid according to the patient's postoperative recovery needs and actual clinical conditions. This reduces complications such as bladder spasms caused by temperature discomfort or improper flow, further enhancing patient comfort during treatment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the relationship between the tail end of the device and the bladder during use of the present invention; Figure 3 This is a schematic diagram showing the connection relationship between the liquid inlet pipeline assembly and the liquid drainage assembly of the present invention; Figure 4 This is a cross-sectional schematic diagram of the anti-clogging pretreatment mechanism of the present invention; Figure 5 This is a schematic diagram showing the connection relationship between the swirl blades and the crushing roller of the present invention; Figure 6 This is a schematic diagram of the anti-blocking control mechanism of the present invention; Figure 7 This is a schematic diagram showing the internal positional relationship of the control block in this invention; Figure 8 This is a first cross-sectional schematic diagram of the anti-blocking control mechanism of the present invention; Figure 9 This is a second cross-sectional schematic diagram of the anti-blocking control mechanism of the present invention; Figure 10 This is a schematic diagram of the adjustment plate structure of the present invention.
[0020] The components include: 1. Inlet pipe assembly; 11. Fluid collection bag; 12. Inlet pipe; 13. Temperature regulator; 2. Drainage assembly; 21. Waste collection bag; 22. Drain pipe; 23. Flow regulator; 3. Urinary catheter; 31. Inlet channel; 32. Drain channel; 4. Anti-clogging pretreatment mechanism; 41. Conical grinding chamber; 42. Swirl blade; 43. Grinding roller; 5. Anti-clogging control mechanism; 51. Control block; 511. Adjustment chamber; 512. First connecting channel; 513. Second connecting channel; 514. First locking groove; 515. Second locking groove; 52. Blocking block; 53. Adjusting plate; 531. Adjustment groove; 532. Limiting groove; 54. Torsion spring; 55. Limiting rod; 56. Backflush channel; 57. Pressure regulating check valve; 58. Control shaft. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] The inventors discovered that existing bladder irrigation systems cannot monitor tube blockage in real time. Blockage is only detected when drainage is completely interrupted or the patient experiences severe discomfort, by which time severe bladder tamponade has often occurred. Currently, when dealing with tube blockage, a syringe is typically used to inject some irrigation fluid into the drainage channel for backflushing. This operation cannot promptly determine whether the drainage channel has been restored to patency, and it also causes a sharp increase in bladder pressure, resulting in severe discomfort for the patient. This not only increases the workload of medical staff but may also lead to related complications due to untimely unblocking.
[0023] Based on the above findings, this application proposes a bladder irrigation device for urology. By configuring an anti-clogging pretreatment mechanism with swirling blades and a crushing roller, blood clots in the bladder are pre-crushed, reducing the risk of blockage at the source. Simultaneously, an automatically responsive anti-clogging control mechanism monitors the status of the drainage channel in real time. When blockage occurs, an automatic backflushing function is triggered by a preset pressure threshold to achieve autonomous unblocking. The overall process achieves a complete anti-clogging effect of "prevention-real-time monitoring-automatic unblocking," which reduces the workload of medical staff and improves the safety and efficiency of bladder irrigation. Example
[0024] See Figures 1-10 This application discloses a bladder irrigation device for urological surgery, used for postoperative bladder irrigation treatment in urological surgery. It enables pre-blockage prevention, real-time monitoring of blockage, and automatic unblocking, reducing the incidence of complications such as bladder spasms and urinary tract infections, alleviating the workload of medical staff, and improving the patient's treatment experience. The bladder irrigation device for urological surgery includes a tubing system, a catheter 3, an anti-blockage pretreatment mechanism 4, and an anti-blockage control mechanism 5.
[0025] The pipeline system serves as a carrier for the input of flushing fluid and the discharge of waste fluid. It includes an inlet pipeline assembly 1 and a draining and guiding assembly 2, which are independent of each other.
[0026] Specifically, the inlet tubing assembly 1 includes a flushing fluid collection bag 11, an inlet pipe 12, and a temperature regulator 13. The flushing fluid collection bag 11 is made of transparent, soft PVC material, with liquid level markings on the bag body. A filling port with a sealing cap is located at the top of the bag for adding flushing fluids such as saline. An outlet port is located at the bottom of the bag body, which is detachably connected to one end of the inlet pipe 12 via a Luer connector for easy disassembly, replacement, and disinfection. The other end of the inlet pipe 12 is connected to an anti-clogging control mechanism 5 for conveying the flushing fluid. The temperature regulator 13 is connected in series with the inlet pipe 12 near the flushing fluid collection bag 11. It uses a small PTC heating element (specifically, the Warm520 model) with an external insulation layer. The temperature adjustment range is 32-37℃, allowing real-time adjustment of the flushing fluid temperature within the inlet pipe 12 to prevent low-temperature flushing fluid from irritating the bladder mucosa and reduce the incidence of bladder spasms.
[0027] The drainage assembly 2 includes a waste fluid collection bag 21, a drainage pipe 22, and a flow regulator 23. The waste fluid collection bag 21 is made of transparent, soft PVC material and has liquid level markings for easy observation of waste fluid discharge by medical staff. An inlet port is located at the top of the bag, which is detachably connected to one end of the drainage pipe 22 via a Luer connector. A drainage valve is located at the bottom of the bag for periodic waste fluid discharge. The other end of the drainage pipe 22 is connected to an anti-clogging control mechanism 5 for waste fluid drainage. The flow regulator 23 is connected in series with the drainage pipe 22 and the inlet pipe 12. It is a knob-type flow regulator valve, specifically model CXG661F-10P, which can monitor the flow rate of the irrigation fluid and waste fluid in real time. It allows manual adjustment of the flow rate of the irrigation fluid in the inlet pipe 12 and the drainage flow rate of the waste fluid in the drainage pipe 22, adapting to different patients' postoperative recovery conditions and preventing excessively fast or slow flow rates from affecting treatment outcomes.
[0028] Furthermore, the inner lumen of the catheter 3 is divided into an independent inlet channel 31 and an outlet channel 32. The distal end of the inlet channel 31 is connected to the bladder, and the distal end of the outlet channel 32 is connected to an anti-blocking pretreatment mechanism 4. The catheter 3 is made of medical-grade silicone, which is soft and has a certain degree of toughness to avoid damaging the bladder mucosa. The inner lumen of the catheter 3 is divided into an independent inlet channel 31 and an outlet channel 32 by a partition plate. The two channels are not connected to each other and realize the input of flushing fluid and the discharge of waste fluid, respectively. The proximal end of the inlet channel 31 is connected to the first connecting channel 512 of the anti-blocking control mechanism 5, and the distal end extends to the end of the catheter 3. The distal port is opened on the side wall of the catheter 3 near the bladder to facilitate the uniform flow of flushing fluid into the bladder. The proximal end of the outlet channel 32 is connected to the second connecting channel 513 of the anti-blocking control mechanism 5, and the distal end extends to the end of the catheter 3. The distal port is connected to the anti-blocking pretreatment mechanism 4, so that waste fluid and blood clots in the bladder can smoothly enter the anti-blocking pretreatment mechanism 4 for pretreatment.
[0029] Next, the anti-blockage pretreatment mechanism 4 is located at the far end of the drainage channel 32 to treat blood clots and debris in the bladder from the source, control their size, and prevent them from entering the drainage channel 32 and causing blockage. It is a pre-blockage prevention structure, including a conical pulverizing chamber 41, a swirl vane 42, and a pulverizing roller 43.
[0030] Specifically, the conical grinding chamber 41 is generally conical, with its small end coaxially and fixedly connected to the distal end of the drainage channel 32, and its large end facing the inside of the bladder. The conical structure facilitates the smooth entry of waste fluid and blood clots from the bladder into the chamber, while simultaneously reducing the channel diameter for subsequent grinding. Furthermore, the inner wall of the conical grinding chamber 41 is smooth and has several protrusions to assist in breaking up blood clots and improve the grinding effect.
[0031] The swirling blade 42 is fixedly installed inside the conical crushing chamber 41. The blade width of the swirling blade 42 is adapted to the inner wall of the conical crushing chamber 41 to ensure that the swirling blade 42 can rotate flexibly. The center of the swirling blade 42 is provided with a shaft hole for connecting with the crushing roller 43.
[0032] The crushing roller 43 is inverted conical in shape. One end is rotatably connected to the side of the swirl vane 42 away from the catheter 3 via a bearing, and the other end extends to the large end of the conical crushing chamber 41. A gradually decreasing crushing gap is formed between the outer diameter of the crushing roller 43 and the inner wall of the conical crushing chamber 41. This gap gradually narrows from the large end to the small end of the conical crushing chamber 41, and is used to grade and crush the blood clots entering the conical crushing chamber 41. At the same time, it guides the waste liquid and blood clots to flow along the gap to the small end of the conical crushing chamber 41, ensuring that the size of the crushed blood clot particles meets the flow requirements of the drainage channel 32, thus preventing the drainage channel 32 from being blocked at the source and strengthening the pre-blocking function of the anti-blocking pretreatment mechanism 4. Preferably, the surface of the crushing roller 43 is provided with several evenly distributed crushing teeth to enhance the crushing effect on the blood clots.
[0033] When the waste liquid carries blood clots into the conical grinding chamber 41, the impact force generated by the flow of waste liquid drives the swirl vanes 42 to rotate. The swirl vanes 42 simultaneously drive the grinding roller 43 to rotate. Larger blood clots are stuck between the grinding roller 43 and the inner wall of the conical grinding chamber 41, and are squeezed and broken into fine particles by the grinding teeth. Then, they enter the drainage channel 32 along with the waste liquid, thus achieving pre-blockage prevention.
[0034] Next, the anti-blocking control mechanism 5 is connected between the pipeline mechanism and the catheter 3. It is used to monitor the potential blockage of the drainage channel 32 in real time and automatically start the unblocking operation when a blockage or potential blockage is detected. It is an automatic intervention structure, including a control block 51, a blocking block 52, an adjusting plate 53, a torsion spring 54, a limit rod 55, a backflow channel 56, a pressure regulating one-way valve 57, and a control shaft 58.
[0035] Specifically, the control block 51 has a rectangular parallelepiped structure and an adjustment cavity 511 inside. The control block 51 has two connecting holes on the side wall near the pipeline mechanism, which are connected to the inlet pipe 12 and the outlet pipe 22 respectively through Luer connectors. The control block 51 has a connecting hole on the side near the catheter 3, which is connected to the catheter 3 through a Luer connector.
[0036] The inlet pipe 12 connects to the inlet channel 31 via one side of the regulating chamber 511, forming a first connecting channel 512 for the flow of flushing fluid; the outlet pipe 22 connects to the outlet channel 32 via the other side of the regulating chamber 511, forming a second connecting channel 513 for the flow of waste liquid. The first connecting channel 512 and the second connecting channel 513 are symmetrically and independently arranged to ensure smooth flow of flushing fluid and waste liquid.
[0037] The side wall of the first connecting channel 512 is provided with a first locking groove 514 that is adapted to the blocking block 52, and the side wall of the second connecting channel 513 is provided with a second locking groove 515 that is adapted to the blocking block 52. Both the first locking groove 514 and the second locking groove 515 are arc-shaped locking grooves that fit the shape of the blocking block 52. They are used to limit and position the rotation of the adjusting piece 53 during the operation of the anti-blocking control mechanism 5, so as to ensure that the adjusting piece 53 can be accurately locked into the corresponding locking groove, thereby achieving reliable blocking of the first connecting channel 512 and the second connecting channel 513.
[0038] The sealing block 52 is cylindrical, and its outer diameter is adapted to the inner diameter of the regulating cavity 511. It is fixedly installed inside the regulating cavity 511. A through hole is opened in the center of the sealing block 52, and the regulating shaft 58 passes through the through hole and is fixedly installed in the center position inside the regulating cavity 511. The sealing block 52 is fixedly connected to the regulating shaft 58.
[0039] The adjusting plate 53 is rotatably disposed between the first connecting channel 512 and the second connecting channel 513, and is used to open and close the first connecting channel 512 and the second connecting channel 513. The adjusting plate 53 is rotatably disposed at the bottom of the blocking block 52 and is coaxially rotatably sleeved on the outside of the control shaft 58. An adjusting groove 531 is formed on the upper surface of the adjusting plate 53, and a torsion spring 54 is embedded in the adjusting groove 531. One end of the torsion spring 54 is fixedly connected to the adjusting plate 53, and the other end is fixedly connected to the control block 51.
[0040] It is worth noting that, in the initial state, a preset preload is applied to the torsion spring 54. This preload forms a clockwise elastic constraint force on the adjusting plate 53. The magnitude of this elastic force is equal to and opposite to the magnitude of the counterclockwise thrust exerted on the adjusting plate 53 by the flushing fluid entering the first connecting channel 512 and the counterclockwise thrust exerted on the adjusting plate 53 by the waste liquid exiting the second connecting channel 513. This allows the adjusting plate 53 to achieve a steady-state balance between the dynamic liquid flow force and the elastic preload, ensuring that the channel is in the normal flow position.
[0041] The limiting rod 55 is cylindrical and slides through the control block 51 and the adjusting plate 53, with its top extending to the upper side of the control block 51. A limiting groove 532 is formed on the adjusting plate 53. The limiting rod 55 passes through the control block 51 and inserts into the limiting groove 532 to restrict the rotational freedom of the adjusting plate 53. When the limiting rod 55 is inserted into the limiting groove 532, the adjusting plate 53 cannot rotate. When the limiting rod 55 is pulled out, the adjusting plate 53 can rotate under the action of the torsion spring 54 and the liquid impact force.
[0042] Furthermore, the regulating plate 53 has a backflow channel 56 on the side near the pipeline mechanism, one end of which is connected to the first connecting channel 512 and the other end is connected to the second connecting channel 513. The pressure regulating check valve 57 is fixedly installed inside the backflow channel 56, and its conduction direction is from the first connecting channel 512 to the second connecting channel 513.
[0043] It is worth noting that the initial pressure regulating check valve 57 is set with a threshold value, preferably 0.1-0.2 MPa. When the pressure in the first connecting channel 512 reaches this threshold value, the pressure regulating check valve 57 opens, and the flushing fluid in the first connecting channel 512 can enter the second connecting channel 513 through the backwash channel 56, realizing reverse flushing of the second connecting channel 513; when the pressure is lower than the threshold value, the pressure regulating check valve 57 closes, and the first connecting channel 512 and the second connecting channel 513 are in a closed state. Working principle of anti-blocking and control mechanism 5: Before performing bladder irrigation, the limiting rod 55 must be inserted into the limiting groove 532 to restrict the rotational freedom of the adjusting plate 53, ensuring that the adjusting plate 53 is kept in the middle position and maintaining the open state of the first connecting channel 512 and the second connecting channel 513, thus preparing for the subsequent irrigation operation.
[0044] Once the bladder irrigation system is started and enters a stable operating state, the limit rod 55 can be pulled out to release the rotation restriction on the adjusting plate 53. At this time, the irrigation fluid in the first connecting channel 512 and the waste fluid in the second connecting channel 513 form a bidirectional liquid flow impact force, which balances each other and forms a dynamic balance with the elastic force of the torsion spring 54, stabilizing the adjusting plate 53 in the middle position, ensuring the normal flow of irrigation fluid and waste fluid, and realizing the regular irrigation cycle.
[0045] When the drainage channel 32 becomes blocked, the discharge of waste liquid is obstructed, and the impact force of the liquid flow in the second connecting channel 513 is significantly reduced, while the inlet pressure remains unchanged. Therefore, the overall impact force of the inlet and outlet liquids on the regulating plate 53 is reduced, and the elastic force of the torsion spring 54 is greater than the impact force. The torsion spring 54 drives the regulating plate 53 to rotate clockwise, gradually closing the main channel, thereby increasing the pressure in the first connecting channel 512. When the pressure reaches the preset threshold, the pressure regulating check valve 57 opens, and the flushing fluid is injected into the second connecting channel 513 through the backflushing channel 56, flushing the blocked area in the reverse direction along the drainage channel 32, dispersing the blocked blood clots or debris, and realizing the automatic unblocking of the blocked channel.
[0046] Once the blockage is cleared, the fluid flow in the first connecting channel 512 and the second connecting channel 513 returns to normal, the fluid flow impact force is rebalanced, causing the regulating plate 53 to rotate counterclockwise to the middle position, the pressure regulating check valve 57 closes, the backflush channel 56 stops working, and the device returns to normal flushing status, ensuring a continuous and uninterrupted flushing process. This process achieves automatic identification and clearing of blockages without manual intervention, while avoiding abnormal increases in bladder pressure caused by blockages, significantly reducing the intensity of manual operation, and ensuring the safety and stability of the flushing process, thus meeting the needs of clinical applications. Application Examples
[0047] This application example uses bladder irrigation treatment for patients after transurethral resection of the prostate (TURP) in urology to achieve postoperative bladder irrigation, pre-emptive fragmentation of blood clots, and automatic unblocking of obstructions. The specific application process is as follows: 1. Preoperative preparation and adjustment: Inject physiological saline into the irrigation fluid collection bag 11 as irrigation fluid, insert the limiting rod 55 into the limiting groove 532 of the adjusting plate 53, fix the adjusting plate 53, and keep the first connecting channel 512 and the second connecting channel 513 open; start the temperature regulating component 13 to adjust the irrigation fluid temperature to 36℃, and adjust the inflow flow rate to 80ml / min through the flow regulating component 23, and adjust the outflow flow rate synchronously.
[0048] 2. Clinical application procedure: After the patient has recovered from anesthesia, the distal end of the urinary catheter 3 is slowly inserted into the patient's bladder, with the anti-blockage pretreatment mechanism 4 located inside the bladder; after the inflow and outflow of fluid tend to be stable, the limiting rod 55 is pulled out to release the rotation restriction on the adjusting plate 53, and the device enters the normal flushing state.
[0049] 3. Pre-blockage prevention: During normal flushing, the waste fluid in the bladder carries the blood clots generated after surgery into the conical crushing chamber 41. The impact force generated by the flow of waste fluid drives the swirl vanes 42 and the crushing rollers 43 to rotate, which crushes the blood clots in stages. The crushed fine particles flow into the waste fluid collection bag 21 through the drainage channel 32 and the second connecting channel 513 for collection.
[0050] 4. Automatic Unblocking After Blockage: When the drainage channel 32 is blocked, the flow rate and impact force of the waste liquid in the second connecting channel 513 are significantly reduced. The clockwise pre-tightening force of the torsion spring 54 drives the adjusting plate 53 to rotate and engage with the first locking groove 514 and the second locking groove 515, closing the main passage of the two connecting channels. At this time, the flushing fluid pressure in the first connecting channel 512 continues to rise. When the pressure reaches the threshold, the pressure regulating one-way valve 57 automatically opens, and the flushing fluid flows into the second connecting channel 513 through the backflushing channel 56 and flushes the blocked part in the opposite direction along the drainage channel 32, dispersing the blocked blood clot. After the blockage is cleared, the impact force of the liquid flow in the second connecting channel 513 is restored, the adjusting plate 53 is reset, the pressure regulating one-way valve 57 is closed, and the device automatically resumes normal flushing.
[0051] The basic principles, main features, and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A bladder irrigation device for urological use, characterized in that, include: The piping system includes an inlet piping assembly (1) and a drain assembly (2). The catheter (3) has its inner lumen divided into an independent inlet channel (31) and an outlet channel (32). The distal end of the inlet channel (31) is connected to the bladder, and the distal end of the outlet channel (32) is connected to an anti-blockage pretreatment mechanism (4). The anti-blocking control mechanism (5) is connected between the pipeline mechanism and the catheter (3) to monitor the potential blockage of the drainage channel (32) in real time and automatically clear the drainage channel (32).
2. The bladder irrigation device for urology according to claim 1, characterized in that, The anti-blocking pretreatment mechanism (4) includes: A conical grinding chamber (41) is connected to the distal end of the drainage channel (32); The swirl blades (42) are rotatably disposed inside the conical grinding chamber (41); The pulverizing roller (43) is connected to the side of the swirl vane (42) away from the catheter (3).
3. A bladder irrigation device for urology according to claim 2, characterized in that, The inlet pipeline assembly (1) includes a flushing fluid collection bag (11), an inlet pipe (12), and a temperature regulating component (13).
4. A bladder irrigation device for urology according to claim 3, characterized in that, The drainage assembly (2) includes a waste liquid collection bag (21), a drainage pipe (22), and a flow regulator (23).
5. A bladder irrigation device for urology according to claim 4, characterized in that, The anti-blocking control mechanism (5) includes: The control block (51) has an internal adjustment cavity (511). One side of the adjustment cavity (511) is connected to the liquid inlet pipe (12) and the liquid inlet channel (31) to form a first communication channel (512), and the other side is connected to the liquid outlet pipe (22) and the liquid outlet channel (32) to form a second communication channel (513). The blocking block (52) is fixedly installed inside the regulating cavity (511) via the regulating shaft (58); An adjusting plate (53) is located at the bottom of the sealing block (52) and is rotatably connected to the adjusting shaft (58), and an adjusting groove (531) is provided on it. A torsion spring (54) is embedded in the adjustment groove (531), with one end connected to the adjustment plate (53) and the other end connected to the control block (51); The limiting rod (55) slides through the control block (51) and the adjusting plate (53), and its top extends to the upper side of the control block (51).
6. A bladder irrigation device for urology according to claim 5, characterized in that, The first connecting channel (512) has a first slot (514) on its side wall, and the second connecting channel (513) has a second slot (515) on its side wall.
7. A bladder irrigation device for urology according to claim 6, characterized in that, One end of the regulating plate (53) is provided with a backflow channel (56), and a pressure regulating check valve (57) is provided inside the backflow channel (56). The conduction direction of the pressure regulating check valve (57) is from the first connecting channel (512) to the second connecting channel (513).
8. A method of using a bladder irrigation device for urology, characterized in that, The bladder irrigation device for urology according to any one of claims 1-7 is obtained, and the method includes the following steps: S1. Insert the distal end of the urinary catheter (3) into the patient's bladder; S2. Inject flushing fluid, adjust the flushing fluid temperature and flow rate, and insert the limiting rod (55) into the limiting groove (532) to fix the adjusting plate (53), so that the first connecting channel (512) and the second connecting channel (513) remain open. S3. After the flushing fluid and waste fluid have stabilized, pull out the limiting rod (55). During the flushing process, the waste fluid in the bladder carries the blood clot into the cone-shaped crushing chamber (41). The crushing roller (43) is driven to rotate by the swirl blade (42) to crush the blood clot. After the blood clot is crushed, it is discharged into the waste fluid collection bag (21) through the drainage channel (32) and the second connecting channel (513) to achieve pre-blocking. S4. When the drain channel (32) is blocked, the torsion spring (54) drives the regulating plate (53) to rotate clockwise and lock into the locking groove, closing the main passage of the two connecting channels. After the pressure of the first connecting channel (512) reaches the threshold, the pressure regulating check valve (57) opens, and the flushing liquid flushes the blocked part in the reverse direction through the backflushing channel (56). After the blockage is cleared, the regulating plate (53) resets, the pressure regulating check valve (57) closes, and the device resumes normal flushing.