Catheter system based on self-adaptive deformation and monitoring method thereof
By adopting the detachable structure and antibacterial and anti-scaling design of the adaptive deformation urinary catheter system, the problems of inconvenient disassembly and easy damage of the monitoring module are solved, achieving the effects of rapid disassembly, extended life and reduced risk of infection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MEI HOSPITAL UNIV OF CHINESE ACAD OF SCI
- Filing Date
- 2026-03-27
- Publication Date
- 2026-05-12
AI Technical Summary
Existing adaptive deformation catheter systems involve cumbersome disassembly of the monitoring module and are susceptible to damage to high-precision flow sensors from urine crystals and dirt, leading to inconvenient maintenance and infection risks.
A detachable structure for the monitoring components and the detection housing was designed, utilizing a combination of slides, inserts, and magnetic plates to achieve quick one-handed disassembly; the inner wall of the urinary catheter was treated with superhydrophobic coating, combined with a PVA/PLL blend film and a silver ion antibacterial cotton core to prevent scaling and bacterial growth; real-time monitoring was achieved using a thin-film pressure sensor and a high-precision flow sensor.
It enables quick disassembly of the monitoring module with one hand, reduces crystal and dirt accumulation, extends sensor life, reduces the risk of infection, and achieves 7 days of zero maintenance, zero crystallization, and zero infection.
Smart Images
Figure REF-OBJ-1774593497398-000004 
Figure REF-OBJ-1774593497398-000005 
Figure REF-OBJ-1774593497398-000006
Abstract
Description
Technical Field
[0001] This invention relates to the field of urinary catheter systems, specifically an adaptive deformation urinary catheter system and its monitoring method. Background Technology
[0002] Urinary catheters are used to drain urine and prevent bladder overdistension in postoperative patients who are temporarily unable to urinate due to anesthesia. They are also used for patients with urinary retention (inability to urinate independently) due to spinal cord injury, neurological diseases, etc., for long-term or short-term urine drainage to maintain bladder function. In critically ill patients requiring urine output monitoring, urinary catheters can accurately record urine output, aiding in condition assessment. The design of urinary catheters allows for safe insertion into the urethra and fixation within the bladder. Their functions encompass urine drainage, condition monitoring, and adjunctive therapy, making them an indispensable tool in clinical urological care.
[0003] Existing adaptive deformation-based urinary catheter systems replace or assist urination through physical drainage, helping patients unable to urinate independently to empty their bladders. While these methods achieve the goal of assisting in urine drainage, monitoring the system's operation requires the use of flow sensors to analyze the data. The monitoring module is bolted to the catheter system, and urine containing urea, inorganic salts, proteins, and cell debris is prone to crystallization, scaling, and biofilm formation when in contact with the high-precision flow sensor. Regular cleaning is necessary to prevent damage to the delicate sensor components from crystallization and fouling. Disassembling the monitoring module is cumbersome, cannot be done with one hand, and is time-consuming.
[0004] Therefore, there is an urgent need to develop an adaptive deformation catheter system and its monitoring method to solve the problems in the existing technology. Summary of the Invention
[0005] The purpose of this invention is to provide an adaptive deformation catheter system and its monitoring method, which enables easy single-handed disassembly and cleaning of the catheter system, avoiding damage to the high-precision flow sensor by crystals and dirt.
[0006] To achieve the above objectives, the present invention provides the following technical solution: An adaptive deformation urinary catheter system and its monitoring method are disclosed, including a monitoring component. One end of the monitoring component is connected to the main body of the urinary catheter via a three-way tube. A housing and a detection housing are installed on one side of the monitoring component. A detection housing is installed on one side of the monitoring component via a disassembly and assembly component. A monitoring module is installed inside the detection housing. The detection housing is connected to the operation panel via a wire.
[0007] By adopting the above technical solution, the monitoring components, together with the monitoring modules, facilitate real-time monitoring of the operation of the urinary catheter system, enabling real-time monitoring of the flow rate, pressure, and other parameters of the urinary catheter system, so as to adjust the operating threshold of the urinary catheter system based on the monitored data.
[0008] As a further aspect of the present invention: the inner wall of the urinary catheter body is treated with superhydrophobic anti-scaling treatment, and two extension plates are symmetrically arranged on both sides of the detection shell, with a sliding groove in the middle of the extension plate.
[0009] By adopting the above technical solution, the inner wall of the urine catheter body is treated with superhydrophobic anti-scaling material, facilitating rapid flushing. The sliding groove has a narrow middle and wide ends; the wide ends facilitate the limiting of the sliding plate. Compared with the fixed connection method in the prior art, the design of the extension plates, sliding groove, and insertion plate on both sides of the detection housing in this invention achieves a detachable structure for the detection housing by moving the sliding plate to insert the insertion plate into the slot. Combined with the magnetic attraction of the first and second magnetic plates, temporary fixation is provided during disassembly, thus facilitating one-handed operation and preventing the detection housing from falling. This structure makes the high-precision flow sensor easy to clean regularly, reducing crystal and dirt accumulation and extending the sensor's lifespan.
[0010] As a further embodiment of the present invention: a slide plate is provided in the slide groove, a pull plate is fixed at one end of the slide plate, an insert plate is fixed at the other end of the slide plate, and a slot is provided on the detection housing opposite to the insert plate.
[0011] By adopting the above technical solution, when the insert plate slide moves, the slide groove can limit the insertion plate, so that the insertion plate can be inserted into the slot to limit the two ends of the detection housing. At the same time, the insertion plate can be retracted into the slide groove, eliminating the limitation of the insertion plate on the detection housing. The single disassembly and assembly of the detection housing takes no more than 10 seconds, and the entire disassembly and assembly process can be operated by one person with one hand.
[0012] As a further aspect of the present invention: a first magnetic plate is provided around the slot, and a second magnetic plate is installed on the side of the insert plate near the slot. The magnetic attraction force of the second magnetic plate matches that of the first magnetic plate, and both surfaces are coated with polytetrafluoroethylene.
[0013] By adopting the above technical solution, the design of the first magnetic plate and the second magnetic plate, after eliminating the limiting of the slot by the insertion plate, can prevent the detection housing from falling directly from the detection component, and facilitates disassembly by one hand for the staff. This effectively ensures the staff's flexibility when disassembling the detection housing. The polytetrafluoroethylene coating on both surfaces is a corrosion-resistant coating, which can prevent the detection equipment from being corroded by long-term contact with urine and other substances.
[0014] As a further aspect of the present invention, the monitoring module includes a high-precision flow sensor, a Bluetooth module, and an alarm module.
[0015] By adopting the above technical solution, the high-precision flow sensor combined with the Bluetooth module design generates an induced electromotive force proportional to the average flow velocity when a conductive liquid flows through the magnetic field generated by the excitation coil inside the sensor. The flow rate can be calculated by detecting this signal through the electrodes. Then, the Bluetooth module of the TICC2340R5 series can send the measured digital signal to the operation panel so that the staff can view the monitoring data in real time.
[0016] As a further embodiment of the present invention: a miniature pump connector is provided at one end of the three-way tube, a single suction valve is fixed inside the miniature pump connector, a check valve is provided at the other end of the three-way tube, a sealing cap is provided at one end of the three-way tube, and a catheter is installed at the end of the three-way tube that is directly opposite the main body of the urinary catheter.
[0017] By adopting the above technical solution, the three-way tube design connects the adaptive deformation balloon to the pump device at one end, so as to deliver saline or air into the adaptive deformation balloon and fix the adaptive deformation balloon at the urethral opening. The other end connects to the flushing device, so as to facilitate the injection of drugs or cleaning solution into the urinary catheter body to avoid bacterial growth in the urinary catheter body. The single suction valve design can prevent the gas or saline in the adaptive deformation from being discharged on its own, and the check valve design can prevent the liquid injected into the urinary catheter body from flowing back.
[0018] As a further aspect of the present invention: a urinary catheter inlet is provided at one end of the urinary catheter body, and an adaptive deformation airbag is installed at the end of the urinary catheter inlet near the three-way tube, with an air chamber provided in the middle of the adaptive deformation airbag.
[0019] By adopting the above technical solution, the design of the urinary catheter inlet allows accumulated urine to be discharged through the urinary catheter body and the catheter when the urinary catheterization system is working. The design of the air chamber facilitates the delivery of air or saline into the adaptive deformation balloon to support the adaptive deformation balloon.
[0020] As a further aspect of the present invention: an anti-inflammatory and antibacterial membrane is arranged around the outer wall of the adaptive deformation airbag, the anti-inflammatory and antibacterial membrane is a PVA / PLL blend film, a negative pressure tube is connected to one end of the adaptive deformation airbag, and a groove is opened in the middle of the urinary catheter body.
[0021] By adopting the above technical solution, the PVA / PLL blend film is a composite film prepared by blending two polymer materials, polyvinyl alcohol (PVA) and poly-L-lysine (PLL). It possesses good biocompatibility and antibacterial properties, effectively reducing bacterial infection problems during prolonged contact between the human body and the adaptive deformable airbag. PVA (polyvinyl alcohol) itself has virtually no antibacterial properties; the actual antibacterial agent is ε-polylysine (ε-PLL), a natural cationic polyamino acid and a recognized broad-spectrum, safe, food / medical-grade antibacterial agent. The PVA in the film is a hydrophilic polymer, and the film will react in humid environments, bacterial cultures, bodily fluids, and water vapor environments. 1. Slight water absorption and swelling 2. Formation of hydrophilic channels Allow the dispersed ε-PLL to be slowly released onto the surface. In other words, PVA, as the carrier matrix, is responsible for film formation, mechanical properties, and stability, while ε-PLL, as the antibacterial functional component, is responsible for killing bacteria.
[0022] Furthermore, the superhydrophobic anti-scaling treatment on the inner wall of the urinary catheter reduces urine crystal adhesion, preventing crystals from becoming a "carrier" for bacterial growth. This reduces the probability of bacterial reproduction from the source and improves the efficiency of the antibacterial membrane (if crystals adhere, the antibacterial agent cannot effectively contact the bacteria, and the antibacterial effect will decrease by more than 50%). The ε-PLL content is limited to 3%-7% (not the conventional content optimization), which is the optimal antibacterial agent release rate for the superhydrophobic coating: when the content is <3%, the antibacterial agent release is insufficient and cannot inhibit the reproduction of a small number of residual bacteria on the surface of the superhydrophobic coating; when the content is >7%, the antibacterial agent release is too fast, which can easily cause mucosal irritation and form an "excessive superposition of antibacterial agents" with the antibacterial cotton core of the sealing cap, increasing the risk of patient allergies. The silver ion antibacterial cotton core built into the sealing cap achieves "end-point antibacterial" at the three-way tube interface, preventing external bacteria from entering through the interface. Together with the antibacterial membrane and superhydrophobic coating of the main body of the urinary catheter, it forms a "closed loop of antibacterial and anti-fouling throughout the entire pipeline", ultimately reducing the urinary tract infection rate from more than 35% in the traditional structure to 5%. The following describes the synergistic anti-infection effect of anti-scaling, antibacterial, and sealing.
[0023] As a further aspect of the present invention: a thin-film pressure sensor is provided at the other end of the urinary catheter inlet, and a lead wire is connected to one end of the thin-film pressure sensor.
[0024] By adopting the above technical solution, the thin-film pressure sensor utilizes the piezoelectric effect. When the thin film is subjected to mechanical stress (such as bending or pressure), the internal charge distribution changes, generating a voltage or charge signal between the upper and lower electrodes that is proportional to the deformation. This enables the detection of dynamic pressure around the urinary catheter inlet. The lead wire design facilitates connection to the monitoring module, enabling the transmission of monitoring signals.
[0025] A monitoring method based on an adaptive deformation catheter system, employing the aforementioned adaptive deformation catheter system, includes the following steps: S1: The catheter body needs to be inserted to install the catheter system in the patient's urethra; S2: Connect the miniature pump connector to the miniature water pump / air pump. After one end of the urinary catheter enters the human body, saline or air is delivered into the adaptive deformation balloon, which inflates the adaptive deformation balloon to fix the urinary catheter inlet at the urethral opening. S3: When the urethral system is working, the pressure value at the inlet of the urethra is monitored in real time by a thin-film pressure sensor. Through the design of the Bluetooth module, a real-time signal is transmitted to the operation panel to determine whether the detected pressure value exceeds the preset threshold. If the threshold is exceeded, the micro pump can be controlled by the preset program to work, realizing the removal of saline or air in the adaptive deformation balloon and realizing the adaptive adjustment of pressure. If the threshold is not exceeded, the detection work continues. S4: At the same time, the high-precision flow sensor will monitor the flow rate through the catheter in real time and determine whether the flow rate exceeds the preset threshold. If the threshold is exceeded, the alarm module will control the warning light to flash to alert the staff of the abnormal situation so that the staff can react in time; if the threshold is not exceeded, the detection work will continue. S5: Designed in conjunction with the urinary catheter and the main body of the catheter, it helps patients who cannot urinate independently to drain urine from their bladder by physically draining the urine, and continuously drains the urine to avoid bladder overdistension. S6: The design of the control panel enables real-time viewing of data monitored by the urinary catheter system, allowing staff to promptly detect changes in the monitoring data; S7: The design of the disassembly and assembly components facilitates quick disassembly and installation of the monitoring module, enabling regular cleaning of the high-precision flow sensor.
[0026] By adopting the above technical solution and designing thin-film pressure sensors and high-precision flow sensors, the monitoring module can monitor pressure and catheter flow in real time, enabling accurate monitoring of various values during the use of the catheter system, so that the system can react or record in a timely manner.
[0027] This invention discovers the interconnected patterns of core technical pain points in the clinical application of urinary catheters: urine crystallization → becoming a carrier for bacterial growth → accelerating the failure of antibacterial materials → sensor scaling leading to abnormal monitoring → requiring frequent manual maintenance → increasing the risk of urethral injury / infection during maintenance. Based on this pattern, the feature ag is designed to block the entire process of this interconnected pattern. Each feature corresponds to a key link in "scaling prevention - bacterial inhibition - material life extension - monitoring and early warning - maintenance burden reduction - infection control". The effect of each subsequent link is directly determined by the feature of the preceding link, forming an inseparable technical whole. Ultimately, it achieves the unexpected effect of zero maintenance, zero crystallization, and zero infection in 7 days of clinical use.
[0028] Compared with existing technologies, the beneficial effects of this invention are as follows: Addressing the problems of inconvenient disassembly of existing urinary catheter systems and the susceptibility of high-precision flow sensors to damage from crystallized dirt, the design of the extension plates on both sides of the detection housing allows the monitoring module to be used by pulling out or pressing back the pull plate, enabling the insertion plate to be inserted into the slot. This achieves the limiting of the insertion plate on both sides of the detection housing. Furthermore, the design of the first and second magnetic suction plates prevents the detection housing from falling directly during installation or disassembly, facilitating quick one-handed disassembly by operators. Compared to existing technologies that require bolt fixing and time-consuming disassembly, this invention, through its sliding groove, insertion plate, and magnetic suction plate design, allows users to quickly disassemble the detection housing with one hand, facilitating regular cleaning, reducing crystal and dirt accumulation, and effectively extending the sensor's lifespan.
[0029] Other features and advantages of the present invention will be disclosed in detail in the following detailed description and accompanying drawings. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of a structure of an adaptive deformation-based urinary catheter system according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of an adaptive deformation catheter system according to an embodiment of the present invention; Figure 3 This is a front sectional view of the main body of the urinary catheter in an adaptive deformation urinary catheter system according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the detection shell structure in an adaptive deformation urinary catheter system according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of a detection module in an adaptive deformation catheter system according to an embodiment of the present invention.
[0031] Figure 6 This is a schematic diagram of the workflow structure of a detection method based on an adaptive deformation catheter system in an embodiment of the present invention; Figure 7 This is a schematic diagram of the workflow structure of a detection method based on an adaptive deformation catheter system in an embodiment of the present invention.
[0032] The labels for the attached figures are as follows: 1. Monitoring components; 2. Urine catheter body; 3. Control panel; 4. Detection housing; 5. Adaptive deformation airbag; 501. Air cavity; 502. Anti-inflammatory and antibacterial membrane; 503. Groove; 504. Negative pressure tube; 6. Monitoring module; 601. Thin-film pressure sensor; 602. Lead wire; 603. Bluetooth module; 604. Alarm module; 605. High-precision flow sensor; 606. Warning light; 7. Urinary catheter inlet; 8. T-joint; 9. Check valve; 10. Sealing cap; 11. Single suction valve; 12. Miniature pump connector; 13. Urinary catheter; 14. Assembly and disassembly components; 1401. Extension plate; 1402. Slide plate; 1403. Pull plate; 1404. Insert plate; 1405. Slide groove; 1406. First magnetic suction plate; 1407. Second magnetic suction plate; 1408. Slot. Detailed Implementation
[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0034] In this embodiment of the invention, an adaptive deformation-based urinary catheter system and its monitoring method are described below. Figure 1-5 As shown, it includes a monitoring component 1. One end of the monitoring component 1 is connected to the urine catheter body 2 through a three-way tube 8. A detection housing 4 is installed on one side of the monitoring component 1 through a disassembly and assembly component 14. A monitoring module 6 is installed inside the detection housing 4. The detection housing 4 is connected to the operation panel 3 through a wire.
[0035] In this embodiment, two extension plates 1401 are symmetrically arranged on both sides of the detection housing 4. A groove 1405 is provided in the middle of the extension plate 1401. The groove 1405 has a structure that is narrow in the middle and wide at both ends. The design of the groove 1405 being wide at both ends facilitates the limiting of the slide plate 1402.
[0036] In this embodiment, a slide plate 1402 is provided in the slide groove 1405. A pull plate 1403 is fixed to one end of the slide plate 1402, and an insert plate 1404 is fixed to the other end of the slide plate 1402. A slot 1408 is provided on the detection housing 4 opposite to the insert plate 1404. When the slide plate 1402 moves, the slide groove 1405 can limit the insert plate 1404, so that the insert plate 1404 can be inserted into the slot 1408 to limit both ends of the detection housing 4. At the same time, the insert plate 1404 can be retracted into the slide groove 1405, and the limitation of the insert plate 1404 on the detection housing 4 is removed.
[0037] In this embodiment, a first magnetic suction plate 1406 is provided around the slot 1408, and a second magnetic suction plate 1407 is installed on the side of the insert plate 1404 near the slot 1408. The design of the first magnetic suction plate 1406 and the second magnetic suction plate 1407 can prevent the detection housing 4 from falling directly from the detection component after the insertion plate 1404 is removed from the slot 1408. It also makes it convenient for the staff to disassemble with one hand, effectively ensuring the flexibility of the staff when disassembling the detection housing 4.
[0038] In this embodiment, the monitoring module 6 includes a high-precision flow sensor 605, a Bluetooth module 603, and an alarm module 604. The high-precision flow sensor 605, in conjunction with the Bluetooth module 603, generates an induced electromotive force proportional to the average flow velocity when a conductive liquid flows through the magnetic field generated by the excitation coil inside the sensor. The flow rate can be calculated by detecting this signal through electrodes. Then, the Bluetooth module 603 can send the measured digital signal to the operation panel 3 so that the staff can view the monitoring data in real time.
[0039] In this embodiment, a miniature pump connector 12 is provided at one end of the three-way tube 8, and a single-suction valve 11 is fixed inside the miniature pump connector 12. A check valve 9 is provided at the other end of the three-way tube 8. A sealing cap 10 is provided at one end of the three-way tube 8. A catheter 13 is installed at the end of the three-way tube 8 that is directly opposite the urinary catheter body 2. The design of the three-way tube 8 enables the connection between the adaptive deformation balloon 5 and the pump device at one end, so as to deliver saline or air into the adaptive deformation balloon 5 and fix the adaptive deformation balloon 5 at the urethral opening. The other end enables the connection with the flushing device, so as to conveniently inject drugs or cleaning solutions into the urinary catheter body 2 to avoid the problem of bacterial proliferation in the urinary catheter body.
[0040] In this embodiment, a urinary catheter inlet 7 is provided at one end of the urinary catheter body 2. An adaptive deformation airbag 5 is installed at the end of the urinary catheter inlet 7 near the three-way tube 8. An air chamber 501 is provided in the middle of the adaptive deformation airbag 5. The design of the urinary catheter inlet 7 allows the accumulated urine to be discharged through the urinary catheter body and the urinary catheter 13 when the urinary catheter system is working.
[0041] In this embodiment, an anti-inflammatory and antibacterial membrane 502 is arranged around the outer wall of the adaptive deformable airbag 5. The anti-inflammatory and antibacterial membrane 502 is a PVA / PLL blend film. One end of the adaptive deformable airbag 5 is connected to a negative pressure tube 504. A groove 503 is opened in the middle of the urinary catheter body. The PVA / PLL blend film is a composite film prepared by blending two polymer materials, polyvinyl alcohol (PVA) and poly-L-lysine (PLL), which has good biocompatibility and antibacterial properties and can effectively reduce the problem of bacterial infection when the human body is in long-term contact with the adaptive deformable airbag 5.
[0042] Furthermore, the superhydrophobic anti-scaling treatment on the inner wall of the urinary catheter reduces urine crystal adhesion, preventing crystals from becoming a "carrier" for bacterial growth. This reduces the probability of bacterial reproduction from the source and improves the efficiency of the antibacterial membrane (if crystals adhere, the antibacterial agent cannot effectively contact the bacteria, and the antibacterial effect will decrease by more than 50%). The ε-PLL content is limited to 3%-7% (not the conventional content optimization), which is the optimal antibacterial agent release rate for the superhydrophobic coating: when the content is <3%, the antibacterial agent release is insufficient and cannot inhibit the reproduction of a small number of residual bacteria on the surface of the superhydrophobic coating; when the content is >7%, the antibacterial agent release is too fast, which can easily cause mucosal irritation and form an "excessive superposition of antibacterial agents" with the antibacterial cotton core of the sealing cap, increasing the risk of patient allergies. The silver ion antibacterial cotton core built into the sealing cap achieves "end-point antibacterial" at the three-way tube interface, preventing external bacteria from entering through the interface. Together with the antibacterial membrane and superhydrophobic coating of the main body of the urinary catheter, it forms a "closed loop of antibacterial and anti-fouling throughout the entire pipeline", ultimately reducing the urinary tract infection rate from more than 35% in the traditional structure to 5%. The following describes the synergistic infection prevention effect of anti-scaling, antibacterial, and sealing.
[0043] Comparison Test 1: Comparative Test 2: Comparative Test 3: Comparison Test 4: In this embodiment, a thin-film pressure sensor 601 is provided at the other end of the urinary catheter inlet 7. One end of the thin-film pressure sensor 601 is connected to a lead wire 602. The thin-film pressure sensor 601 utilizes the piezoelectric effect. When the thin film is subjected to mechanical stress such as bending or pressure, the internal charge distribution changes, generating a voltage or charge signal between the upper and lower electrodes that is proportional to the deformation, thereby realizing the detection of dynamic pressure around the urinary catheter inlet 7.
[0044] In this embodiment, the following steps are included: S1: The catheter body needs to be inserted to install the catheter system in the patient's urethra; S2: Connect the miniature pump connector 12 to the miniature water pump / air pump. After one end of the urinary catheter enters the human body, deliver saline or air into the adaptive deformation airbag 5 to support the adaptive deformation airbag 5 and fix the urinary catheter inlet 7 at the urethral opening. S3: When the urethral system is working, the pressure value at the urethral inlet 7 is monitored in real time by the thin-film pressure sensor 601. Through the design of the Bluetooth module 603, a real-time signal is transmitted to the operation panel 3 to determine whether the detected pressure value exceeds the preset threshold. If it exceeds the threshold, the micro pump can be controlled by the preset program to work, realizing the removal of saline or air in the adaptive deformation balloon 5 and realizing the adaptive adjustment of pressure. If it does not exceed the threshold, the detection work continues. S4: At the same time, the high-precision flow sensor 605 will monitor the flow rate through the catheter 13 in real time and determine whether the flow rate exceeds the preset threshold. If the threshold is exceeded, the alarm module 604 will control the warning light 606 to flash to alert the staff of the abnormal situation so that the staff can react in time. If the threshold is not exceeded, the detection work will continue. S5: Designed in conjunction with the urinary catheter 13 and the main body of the catheter 2, it helps patients who cannot urinate independently to drain urine from their bladder by physically draining the urine, and continuously drains the urine to avoid bladder overdistension. S6: The design of the operation panel 3 enables real-time viewing of the data monitored by the urinary catheter system, so that staff can promptly detect changes in the monitoring data; S7: The design of the disassembly and assembly component 14 facilitates the quick disassembly and installation of the monitoring module 6, enabling regular cleaning of the high-precision flow sensor 605.
[0045] Through the design of thin-film pressure sensor 601 and high-precision flow sensor 605, the monitoring module 6 realizes real-time monitoring of pressure and catheter flow, enabling accurate monitoring of various values during the use of the catheter system, so that the system can react or record in a timely manner.
[0046] This invention provides an adaptive deformation catheter system and its monitoring method, which enables the rapid installation or removal of the monitoring module 6, so as to facilitate the regular cleaning of the delicate sensors on the monitoring module 6, thereby avoiding damage to the working life of the monitoring module 6 caused by crystals, dirt, etc.
[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A urinary catheter system based on adaptive deformation, characterized in that, The device includes a monitoring component (1), one end of which is connected to a urine catheter body (2) via a three-way tube (8). A detection housing (4) is installed on one side of the monitoring component (1) via a disassembly and assembly component (14). A monitoring module (6) is installed inside the detection housing (4). The detection housing (4) is connected to the operation panel (3) via a wire.
2. The adaptive deformation-based urinary catheter system according to claim 1, characterized in that, The inner wall of the urinary catheter body (2) is treated with superhydrophobic anti-scaling treatment. Two extension plates (1401) are symmetrically arranged on both sides of the detection housing (4). A sliding groove (1405) is opened in the middle of the extension plate (1401).
3. The adaptive deformation-based urinary catheter system according to claim 2, characterized in that, A slide plate (1402) is provided in the slide groove (1405). A pull plate (1403) is fixed at one end of the slide plate (1402), and an insert plate (1404) is fixed at the other end of the slide plate (1402). A slot (1408) is provided on the detection housing (4) opposite to the insert plate (1404).
4. The adaptive deformation-based urinary catheter system according to claim 3, characterized in that, A first magnetic plate (1406) is provided around the slot (1408), and a second magnetic plate (1407) is installed on the side of the insert plate (1404) near the slot (1408). The magnetic attraction force of the second magnetic plate (1407) matches that of the first magnetic plate (1406), and both surfaces are coated with tetrafluoroethylene.
5. The adaptive deformation-based urinary catheter system according to claim 1, characterized in that, The monitoring module (6) includes a high-precision flow sensor (605), a Bluetooth module (603), and an alarm module (604). An alarm light (606) is provided on one side of the alarm module (604).
6. The adaptive deformation-based urinary catheter system according to claim 1, characterized in that, One end of the three-way tube (8) is provided with a micro pump connector (12), and a single suction valve (11) is fixed inside the micro pump connector (12). The other end of the three-way tube (8) is provided with a check valve (9). One end of the three-way tube (8) is provided with a sealing cap (10). The sealing cap (10) adopts a double sealing structure of thread and sealing ring, and the sealing cap has a replaceable silver ion antibacterial cotton core inside. The end of the three-way tube (8) that is directly opposite to the urinary catheter body (2) is provided with a urinary catheter (13).
7. The adaptive deformation-based urinary catheter system according to claim 1, characterized in that, The main body of the urinary catheter (2) is provided with a urinary catheter inlet (7) at one end. An adaptive deformation airbag (5) is installed at the end of the urinary catheter inlet (7) near the three-way tube (8). An air chamber (501) is provided in the middle of the adaptive deformation airbag (5).
8. The adaptive deformation-based urinary catheter system according to claim 7, characterized in that, An anti-inflammatory and antibacterial membrane (502) is arranged around the outer wall of the adaptive deformation airbag (5). The anti-inflammatory and antibacterial membrane (502) is a PVA / PLL blend film with an ε-PLL content of 3%-7%. One end of the adaptive deformation airbag (5) is connected to a negative pressure tube (504), and a groove (503) is opened in the middle of the urinary catheter body.
9. A urinary catheter system based on adaptive deformation according to claim 7, characterized in that, A thin-film pressure sensor (601) is provided at the other end of the urinary catheter inlet (7), and a lead wire (602) is connected to one end of the thin-film pressure sensor (601).
10. A monitoring method based on an adaptive deformation catheter system, employing an adaptive deformation catheter system as described in any one of claims 1 to 9, characterized in that, The monitoring method further includes the following steps: S1: After sterilizing the main body (2) of the urinary catheter, insert it into the patient's urethra so that the inlet (7) of the urinary catheter reaches the designated position in the bladder and complete the clinical installation of the system; S2: Connect the micro pump connector (12) of the three-way tube (8) to the intelligent micro water pump / air pump, and deliver saline or air into the air chamber (501) of the adaptive deformation airbag (5) to initially inflate the airbag, so as to fix the urinary catheter inlet (7) at the urethral opening. S3: When the urethral system is working, the pressure value at the urethral inlet (7) is monitored in real time by the thin-film pressure sensor (601). Through the design of the Bluetooth module (603), a real-time signal is sent to the operation panel (3) to determine whether the detected pressure value exceeds the preset threshold. If the threshold is exceeded, the micro pump can be controlled by the preset program to work, thereby realizing the removal of saline or air from the adaptive deformation airbag (5) and realizing adaptive adjustment of pressure. If the threshold is not exceeded, the detection work continues. S4: At the same time, the high-precision flow sensor (605) will monitor the flow rate through the catheter (13) in real time and determine whether the flow rate exceeds the preset threshold. If the threshold is exceeded, the alarm module (604) controls the warning light (606) to flash to alert the staff of the abnormal situation so that the staff can react in time. If the threshold is not exceeded, the detection work continues. S5: In conjunction with the design of the catheter (13) and the catheter body (2), physical drainage is used to replace or assist the urination function, helping patients who cannot urinate on their own to drain urine from their bladder, and continuous drainage is used to avoid bladder overfilling. S6: The design of the operation panel (3) enables real-time viewing of the data monitored by the catheterization system, so that staff can promptly detect changes in the monitoring data; S7: With the design of the disassembly and assembly component (14), it is convenient to quickly disassemble and install the monitoring module (6) so as to realize the regular cleaning of the high-precision flow sensor (605). With the design of strong magnetic attraction, the shell is prevented from falling off during disassembly, adapting to the humid and corrosive clinical environment and greatly improving the efficiency of nursing and maintenance.