A rapid, automatic urine drainage device and specialized drainage materials

Abstract

This invention relates to a rapid, automatic response urine drainage device and a dedicated drainage material. The leak-proof outer shell 20 of the dedicated drainage material is equipped with an automatic trigger switch that automatically senses the patient's urination status and quickly initiates negative pressure suction. Upon completion of urination, the automatic trigger switch disconnects, and the urine drainage device 10 returns to standby or sleep mode. This technical solution not only results in lower-cost and more widely available nursing consumables, but also offers high sensitivity in urination status monitoring with an extremely low probability of distortion or false triggering. The fast negative pressure response time avoids urine leakage problems caused by delayed urine sensing or delayed negative pressure activation after urination.

Description

A rapid, automatic urine drainage device and specialized drainage materials Technical Field

[0001] This invention relates to a rapid and automatic urine drainage device and a special drainage material for urination care of bedridden patients, belonging to the field of medical devices or nursing supplies. Background Technology

[0002] With the advent of an aging society, the number of elderly patients bedridden for extended periods is constantly increasing. Urination care is a crucial aspect of elderly patient care. For elderly patients who are unable to urinate normally, methods such as bedpans, indwelling catheters, or adult diapers are commonly used. However, these methods have significant negative impacts. For instance, using bedpans for bed urination places a heavy workload on caregivers, requiring the placement and emptying of urine every few hours, especially inconvenient at night. For patients with long-term indwelling catheters, catheter-related urinary tract infections are a common complication. Prolonged use of adult diapers often leads to bedsores, and the high urine volume in adults necessitates frequent diaper changes, increasing the cost of diaper materials. Clearly, current techniques for urination care for long-term bedridden patients are inadequate, placing a heavy social burden on families and caregivers.

[0003] To address this, the inventors propose a rapid and automatic urine drainage device and a dedicated drainage material to fill the gaps in existing urination care for long-term bedridden patients.

[0004] This invention relates to a rapid and automatic urine drainage device and a special drainage material. The urine drainage device and the special drainage material are two relatively independent units that need to be used in combination.

[0005] A rapid and automatic urine drainage device mainly includes a control motherboard, a vacuum pump, a pressure sensor, a gravity sensor, a communication module, and a human-machine interface.

[0006] The control motherboard is an integrated circuit composed of components such as a core processor, memory, signal processor, and power module, and is manufactured using conventional integrated circuit soldering or surface mount technology.

[0007] The control motherboard also includes embedded software, which is a software program used for hardware driving, data monitoring, status prompts, and negative pressure drainage control. The embedded software is burned into the memory of the control motherboard.

[0008] A vacuum pump is a negative pressure device that provides a vacuum environment within a negative pressure drainage container and drainage tube. The vacuum pump is connected to the control main board. In typical applications, the operating pressure adjustment range of the vacuum pump is not narrower than -40 cmH2O to 0.

[0009] The pressure sensor is used to dynamically monitor the pressure created by the vacuum pump in the negative pressure drainage container and drainage tube. The pressure sensor's range is no narrower than -40 cmH2O to 0, and its measurement accuracy is no less than 1 cmH2O. The pressure sensor is connected to the control main board and sends the dynamically monitored pressure data to the core processor.

[0010] A gravity sensor dynamically monitors the amount of urine excreted by the patient within the negative pressure drainage container. The gravity sensor has a measurement range of no less than 0–2000g and a measurement accuracy of no less than 1g. The gravity sensor is connected to the control motherboard and sends the dynamically monitored urine volume data to the core processor.

[0011] The communication module uses WiFi or Bluetooth to communicate remotely with the user's monitoring terminal (including a computer, iPad, or mobile phone). During operation, the communication module sends equipment status and monitoring information to the client, and can send alerts or alarm signals when the negative pressure drainage container exceeds its limits.

[0012] The human-computer interaction interface includes a display screen, data interface, and operation function keys.

[0013] A rapid, automatic urine drainage device has a physical interface on its outer periphery for use with a dedicated drainage material. The physical interface includes a suspension component for suspending a negative pressure drainage container, which is positioned below a gravity sensor; a switch interface for connecting an automatic trigger switch, which is located on the outer periphery of a control board; a negative pressure interface connected to the negative pressure drainage container or drainage tube, which is connected to the negative pressure air path interface of a vacuum pump; and a pressure measuring interface connected to the negative pressure drainage container or drainage tube, which is connected to the pressure measuring port of a pressure sensor.

[0014] A specialized drainage material includes a wearable urine collection device, an automatic trigger switch, a drainage tube, and a negative pressure drainage container.

[0015] Wearable urine collectors are devices worn around the urethral opening to dynamically collect and drain urine. They mainly consist of a leak-proof outer shell, absorbent material, a suction chamber, and a drainage port.

[0016] A leak-proof outer shell is an isolation device that is easy for patients to wear or secure, and prevents urine leakage to the periphery. The leak-proof outer shell is made of flexible materials including latex and silicone rubber. The specific shape of the leak-proof outer shell is not limited; preferably, based on the different shapes of the male and female external genitalia, and combining ergonomics and ease of wear, wearable urine collection devices are divided into male and female forms. For example, male wearable urine collection devices use a sleeve-like or bag-like structure, worn and secured around the penis, while female wearable urine collection devices use a bowl-like or disc-like structure, upside down and secured around the female urethral opening.

[0017] The absorbent material is used to cover or wrap around the periphery of the patient's urethral opening. When the patient urinates, the absorbent material can quickly absorb the urine and guide it into the suction cavity, preventing urine from overflowing from the periphery of the leak-proof shell. The absorbent material is located on the inside of the leak-proof shell and is fixed in a three-sided or ring-shaped encapsulation structure, but at least one side of the absorbent material should be exposed, and the exposed side should be connected to the patient's urinary opening.

[0018] The absorbent material is made of flexible materials including medical nonwoven fabrics (such as pure cotton spunlace fabric, perforated hot-air nonwoven fabric, and perforated spunbond nonwoven fabric), sponges, and synthetic fiber fabrics. Preferably, the absorbent material adopts a composite structure, with the surface layer in contact with the urethral opening made of medical nonwoven fabric and the inner layer made of sponge or synthetic fiber cotton, and the sponge or synthetic fiber cotton having drainage holes or drainage channels inside.

[0019] The suction chamber is located downstream of the leak-proof outer shell. Combined with the absorbent material, the suction chamber collects urine dynamically from the absorbent material. The shape of the suction chamber is not limited, but it must have an internal volume of at least 2ml-5ml. The suction chamber can be located independently downstream of the leak-proof outer shell or integrally molded with it. For example, in the manufacture of male products, the leak-proof outer shell uses a cylindrical pouch structure made of silicone material (similar to a condom structure). The pouch has an elastic band or elastic ring on its outer perimeter, and a cylindrical suction chamber is located at the bottom of the pouch. The absorbent material is positioned above the suction chamber, and the suction chamber has a volume of 3ml-5ml.

[0020] The suction chamber is equipped with a drainage port, which is combined with a drainage tube. Preferably, the drainage port is located at the bottom of the suction chamber and is connected to the drainage tube.

[0021] The automatic trigger switch consists of a positive electrode, a negative electrode, and a two-core extension wire. The positive and negative electrodes must not be short-circuited or touch each other. The tails of the positive and negative electrodes are respectively connected to one end of the extension wire. The positive and negative electrodes can be arranged horizontally or vertically, for example, with the positive and negative electrodes spaced apart horizontally, and the distance between the positive and negative electrodes should not be less than 1mm.

[0022] The automatic trigger switch is located inside the leak-proof housing and should be positioned where urine inevitably flows. Preferably, the positive and negative electrodes are located within the flow channels of the adsorbent material, or within the suction chamber. The extension wires of the positive and negative electrodes are connected to the device connection terminals, which communicate with the urine drainage device. The device connection terminals can include DC connectors, USB connectors, or audio connectors, and they communicate with the urine drainage device.

[0023] For disposable drainage materials, manufacturing cost directly determines the applicability and universality of this invention. To further optimize cost, a preferred method for manufacturing the automatic trigger switch is to use two exposed metal cores at the end of the extension wire as the positive and negative electrodes of the automatic trigger switch. The two metal cores of the extension wire are arranged with a gap between them, and the end of the extension wire is provided with a device connection terminal. For example, the extension wire uses a cross-section of 1mm². 2 -2.5mm 2 Two-core insulated wires with copper or aluminum cores, with 1mm-3mm of exposed metal core at the ends, serving as the positive and negative poles respectively, and the spacing between the two metal cores is not less than 1mm.

[0024] To prevent short circuits between the positive and negative terminals of the automatic trigger switch under external pressure, preferably, a limiting device is provided between the positive and negative terminals of the automatic trigger switch, with the positive and negative terminals respectively fixed in a limiting groove or a limiting hole. For example, the positive and negative terminals of the automatic trigger switch are made into a two-pin or miniature plug structure, with an extension wire at the rear end of the positive and negative terminals, and a device connection terminal at the end of the extension wire.

[0025] The drainage tube is a flexible conduit connecting the suction cavity and the negative pressure drainage container. The head of the tube connects to the suction cavity, and the tail connects to the inner cavity of the negative pressure drainage container. The drainage tube is made of medical-grade soft polyvinyl chloride (PVC), and common technical parameters include an outer diameter of 5mm-8mm and a wall thickness of 0.5mm-0.8mm. It is required to withstand a negative pressure of ≥40cmH2O.

[0026] A negative pressure drainage container is a device for collecting and temporarily storing urine. It is equipped with an inlet, a negative pressure interface, and a urination discharge switch. The inlet and negative pressure interface are located at the top of the container. The inlet connects to the end of the drainage tube, and the negative pressure interface connects to the negative pressure port of a urine drainage device via a negative pressure tube. The urination discharge switch is located at the bottom of the container and is used to periodically discharge the urine collected within.

[0027] Since adults excrete approximately 1000ml-2000ml of urine daily, existing urine drainage bottles typically have a capacity of 2000ml. When using negative pressure technology for urine drainage, the vacuum pump usually needs several seconds to remove air from the negative pressure drainage container before applying sufficient negative pressure to the container and drainage tube to draw urine into it. Therefore, if a large-volume negative pressure drainage container is used, sufficient negative pressure cannot be generated in the container and drainage tube during the first few seconds after the vacuum pump starts, causing a mismatch between the patient's urination and the negative pressure drainage rate, which can easily lead to urine overflowing to the periphery. Preferably, the negative pressure drainage container adopts a mother-daughter combination structure, with the daughter drainage bottle positioned upstream and the mother drainage bottle downstream, and the inlet and negative pressure interface located above the daughter drainage bottle. The daughter drainage bottle and the mother drainage bottle are connected by an adapter or tubing. A one-way valve or check valve is installed at the connection point, allowing urine to flow from the daughter bottle into the mother bottle in one direction. Urine or air from the mother bottle cannot flow back or be aspirated into the daughter bottle. For example, to prepare a negative pressure drainage container with an effective volume of 2000ml, the volume of the daughter drainage bottle can be defined as 300ml-500ml, and the volume of the mother drainage bottle as 1500ml-1700ml. The daughter and mother drainage bottles are connected by a 6mm-10mm inner diameter tubing, and an anti-backflow diaphragm is installed at the connection point.

[0028] To further optimize costs, the negative pressure drainage container adopts a combined structure of a negative pressure drainage bottle and a urine collection bag. The negative pressure drainage bottle is positioned upstream of the urine collection bag, with the inlet and negative pressure interface located above the bottle. The negative pressure drainage bottle and urine collection bag are connected via an adapter or tubing, and an anti-backflow membrane is installed at the junction. The volume of the negative pressure drainage bottle is defined as 300ml-500ml, and the volume of the urine collection bag is defined as 1500ml-1700ml.

[0029] A rapid, automatic urine drainage device, used in combination with specialized drainage materials, employs a closed-loop feedback control circuit comprising an automatic trigger switch, a core processor, and a vacuum pump. The positive terminal of the automatic trigger switch is connected to one pin of the core processor, while the negative terminal is connected to the D-line within the control motherboard. The vacuum pump is controlled by the core processor. The start and stop of the vacuum pump are automatically controlled by the feedback control circuit. When the urine drainage device is in standby or sleep mode, the core processor applies a stable current (e.g., 3.3V) to the positive terminal of the automatic trigger switch and dynamically monitors the voltage value at the negative terminal connected to the D-line. When the patient begins urination, the absorbent material around the urethral opening draws in the urine and guides it into the leak-proof housing, flowing through the automatic trigger switch. Based on the excellent conductivity of urine, the positive and negative terminals of the automatic trigger switch are connected by urine. The core processor detects a significant increase in voltage at the D-line terminal (the negative terminal) compared to the initial voltage (e.g., from 0V to 2.2V-2.8V). The core processor immediately and automatically starts the vacuum pump, which operates according to a pre-set negative pressure value. During this process, a pressure sensor dynamically monitors the negative pressure value within the drainage container or tube and feeds it back to the core processor, enabling dynamic adjustment of the vacuum pump's output negative pressure. After the urine inside the leak-proof casing is emptied by the negative pressure, the positive and negative terminals of the automatic trigger switch return to the open state, the voltage at the D-line terminal returns to its initial state, and the vacuum pump automatically stops working or stops after a delay (e.g., after the automatic trigger switch returns to the open state, the vacuum pump stops working after a 1-5 minute delay). After this negative pressure drainage cycle is complete, the gravity sensor reads the measured volume of urine. When the gravity sensor detects that the amount of urine in the negative pressure drainage container exceeds the safe capacity, for example, exceeding 80% of the approved capacity, the human-machine interface will provide a prompt or warning message.

[0030] The beneficial effects of this invention are that the leak-proof outer shell of the specialized drainage material is equipped with an automatic trigger switch. This automatic trigger switch, along with the core processor and vacuum pump, forms a closed-loop feedback control circuit that automatically senses the patient's urination status and quickly initiates negative pressure suction. Once urination is complete, the automatic trigger switch automatically disconnects, and the urine drainage device returns to standby or sleep mode. Compared to technologies that use sensors such as level sensors, temperature sensors, and humidity sensors to detect urine, this technical solution not only produces lower-cost and more universally applicable nursing consumables, but also offers high sensitivity in urination status monitoring with an extremely low probability of distortion or false triggering. The fast response time for initiating negative pressure avoids urine overflow problems caused by delayed urine sensing or delayed negative pressure initiation after urination. This technical solution fills a gap in this field and has significant potential for widespread application. Attached Figure Description

[0031] Figure 1 is a block diagram illustrating the working principle of the urine drainage device of the present invention.

[0032] Figure 2 is a schematic diagram of the structure of a urine drainage device combined with a male-specific drainage material according to an embodiment of the present invention.

[0033] Figure 3 is a schematic diagram of an embodiment of a special drainage material for women according to the present invention.

[0034] Figure 4 is a schematic diagram of an embodiment of an automatic trigger switch according to the present invention.

[0035] Figure 5 is a schematic diagram of an embodiment of the negative pressure drainage container of the present invention, which adopts a combination structure of a negative pressure drainage bottle and a urine collection bag.

[0036] As shown in the figure:

[0037] 10. Urine drainage device; 11. Vacuum pump interface; 12. Gravity sensor suspension component; 14. Switch interface; 20. Leak-proof housing; 21. Adsorbent material; 22. Suction chamber; 23. Drainage port; 24. Positive terminal of automatic trigger switch; 25. Negative terminal of automatic trigger switch; 26. Extension wire; 27. Drainage tube; 28. Negative pressure drainage container; 29. ​​Inlet; 30. Negative pressure interface; 31. Negative pressure tube; 33. Negative pressure drainage bottle; 34. Urine collection bag; 35. Anti-backflow diaphragm; 36. Urine discharge switch; 37. Equipment connection terminal. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] Example 1: A method for preparing the urine drainage device 10 of the present invention

[0040] 1. As shown in Figure 1, design the schematic diagram and PCB layout of the urine drainage device 10.

[0041] 2. The list of main components used is as follows:

[0042] The core processor (MCU) uses the STC89C52 microcontroller (STC Corporation).

[0043] The pressure sensor used is model GZP6847 (Wuxi), with a range of -100KPa to 0KPa;

[0044] The gravity sensor used is model SBT620 (Guangzhou), with a maximum error of ±0.2% and a measuring range of 0~3kg;

[0045] The communication module uses a WiFi module, model QCA9377 (Qualcomm).

[0046] The storage module uses a Samsung HY27US08561A chip with a storage capacity of 32MB.

[0047] The human-computer interaction interface uses a 2.1-inch LCD screen with a working voltage of DC3.0V; the sound prompt uses a conventional buzzer.

[0048] The power supply uses an internal power source and is a 10000mA, 3.7V rechargeable lithium battery (EVE).

[0049] 3. Design the PCB according to conventional integrated circuit technology, and use electronic surface mount or soldering processes to prepare the control motherboard. The control motherboard is 50mm long and 40mm wide.

[0050] 4. Design and control the mold for a protective shell that matches the motherboard size. The protective shell should be manufactured using polycarbonate (PC) injection molding. Requirements:

[0051] The protective housing has a switch interface 14 on the left side and a vacuum pump interface 11 on the right side, which is connected to the internal vacuum pump; the protective housing also has a DC charging interface on the right side.

[0052] The protective casing has an observation window with an LCD screen on the front. Below the observation window are function keys, including a power button and a negative pressure setting button.

[0053] The bottom of the protective housing is provided with a gravity sensor mounting position, and a gravity sensor suspension component 12 is provided below the gravity sensor sensing port.

[0054] 5. Install and secure all components inside the protective casing, power on and test; if successful, it is ready.

[0055] Example 2: Preparation of a female-specific drainage material

[0056] 1. As shown in Figure 3, a molding die for the leak-proof housing 20 is designed and developed, using medical-grade silicone rubber as the material. To improve the integration of the components, the suction cavity 22 is integrally molded with the leak-proof housing 20, and the overall shape of the leak-proof housing 20 is an inverted pear shape. The suction cavity 22 is located at the bottom of the leak-proof housing 20, and the bottom of the suction cavity 22 has a drainage port 23 and a mounting position for an automatic trigger switch.

[0057] 2. Design and develop extrusion molds for drainage tube 27 and negative pressure tube 31, using medical-grade soft polyvinyl chloride (PVC) as the material. Drainage tube 27 has an inner diameter of 6mm and an outer diameter of 8mm, and is produced using an extrusion process, cut into 900mm segments. Negative pressure tube 31 has an inner diameter of 2mm and an outer diameter of 3.5mm, and is produced using an extrusion process, cut into 200mm segments.

[0058] 3. Prepare a blow molding mold for the negative pressure drainage bottle 33. The suitable material is polyethylene terephthalate (PET), with an internal volume of 400ml. The negative pressure drainage bottle 33 has a liquid inlet 29 on the left side, a negative pressure interface 30 on the top, and a guide hole at the bottom for connection with the urine collection bag 34.

[0059] 4. The urine collection bag 34 is manufactured using a high-frequency heat-sealing process with soft polyethylene film, and has a capacity of 2000ml. The top of the urine collection bag 34 is provided with an interface for connecting to the negative pressure drainage bottle 33, and the bottom of the urine collection bag 34 is provided with a urine discharge switch 36.

[0060] 5. The negative pressure drainage bottle 33 and the urine collection bag 34 are connected by an adapter or a tubing. An anti-backflow membrane 35 is installed at the junction of the negative pressure drainage bottle 33 and the urine collection bag 34. The anti-backflow membrane 35 is a silicone membrane.

[0061] 6. The adsorbent material 21 is made of polyurethane sponge. According to the internal shape of the leak-proof shell 20, it is cut by die-cutting. The adsorbent material 21 is required to fit and be installed inside the leak-proof shell 20 and not easily fall out.

[0062] 7. As shown in Figure 4, prepare an injection mold for the automatic trigger switch chassis. The applicable material is medical grade polypropylene (PP).

[0063] The base is circular, 3mm thick, and 9mm in outer diameter. A 3.5mm diameter urine drainage hole is located in the center of the base. 1.5mm diameter circular electrode mounting holes are located on both the left and right sides of the base, and these holes are positioned close to the inside of the urine drainage hole.

[0064] Using copper wire with an outer diameter of 1.5mm, cut into 6mm long segments, and using a metal part inlay injection molding process, the positive and negative terminals of the automatic trigger switch are injection molded with the chassis.

[0065] A two-core extension wire 26 is used. The head of the extension wire 26 is soldered to the positive terminal 24 and the negative terminal of the automatic trigger switch, respectively. The end of the extension wire 26 is soldered to the equipment connection terminal 37 and combined.

[0066] 8. As shown in Figure 3, install the automatic trigger switch at the junction of the leak-proof housing 20 and the suction cavity 22, extend the extension wire 26, and seal it with glue.

[0067] 9. Assemble all components using medical-grade polymer bonding technology. The tensile strength of the bonded joints should not be less than 10N. Check the sealing performance of the joints; there should be no leakage. After passing inspection, package for later use.

[0068] 10. Based on the characteristics of the special drainage material, indicate the applicable negative pressure value for drainage on the outer packaging of the product.

[0069] Due to differences in airtightness caused by different structures for male and female devices, as well as the influence of the length of the drainage tube 27 and the volume of the negative pressure drainage container 28, different specifications of specialized drainage materials require different drainage negative pressure values. One type of specialized drainage material is suitable for drainage negative pressure values ​​between -20cmH2O and -100cmH2O. Based on the required negative pressure value of the selected specialized drainage material, the working negative pressure is set on the human-machine interface of the urine drainage device 10.

[0070] Example 3: Application of a urine drainage device 10 combined with a male-specific drainage material

[0071] 1. As shown in Figure 2, the negative pressure drainage container 28 is vertically suspended on the gravity sensor suspension component 12 below the urine drainage device 10.

[0072] 2. Insert the device connection terminal 37 of the automatic trigger switch into the switch interface 14 on the left side of the urine drainage device 10, and connect the tapered connector of the negative pressure tube 31 to the vacuum pump interface 11 on the right side of the urine drainage device 10.

[0073] 3. After fixing the wearable urine collection device to the periphery of the patient's urethra, turn on the urine drainage device 10, set the drainage negative pressure value to -40cmH2O on the human-machine interface, and the urine drainage device 10 enters the working standby state.

[0074] 4. During standby, if the patient urinates, the absorbent material 21 quickly absorbs the urine and guides it into the suction chamber 22. When the urine flows through the automatic trigger switch, the positive and negative terminals of the automatic trigger switch are connected by the urine, and the core processor instructs the vacuum pump to start working, drawing the urine expelled by the patient into the negative pressure drainage container 28 under negative pressure. During this period, the pressure sensor dynamically monitors the negative pressure value in the negative pressure drainage container 28 or the drainage tube 27 and feeds it back to the core processor. Based on the changes in the negative pressure value, the core processor instructs the vacuum pump to dynamically adjust the working pressure, so that the negative pressure value is stably maintained within the set drainage negative pressure value range.

[0075] 5. After the patient stops urinating, the positive and negative terminals of the automatic trigger switch are returned to the open state, and the vacuum pump stops working. This process is repeated.

[0076] Preferably, to facilitate the continued absorption of urine from the adsorbent material 21 into the negative pressure drainage container 28, and to keep the adsorbent material 21 dry, the vacuum pump continues to operate for 3-5 minutes after the positive and negative terminals of the automatic trigger switch are disconnected when the patient stops urinating.

[0077] 6. After the vacuum pump stops working, the gravity sensor measures the amount of urine expelled by the patient and the total amount of urine in the negative pressure drainage container 28, and displays the urine volume data and urination time on the human-machine interface, while simultaneously sending it to the customer's monitoring terminal. If abnormal conditions such as oliguria or polyuria occur, or if the urine volume in the negative pressure drainage container 28 exceeds 1600 ml, an alert or prompt message will be given.

[0078] The above figures and embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention. All such modifications or substitutions should be covered within the scope of the claims of the present invention and do not constitute any limitation on the protection scope of the present invention.

Claims

1. A rapid, automatic urine drainage device and a dedicated drainage material, characterized in that: The urine drainage device 10 and the special drainage material are two relatively independent units that need to be used together. The control method for rapid automatic response to clear the patient's urine is as follows: a closed-loop feedback control circuit is used, consisting of an automatic trigger switch, a core processor, and a vacuum pump. The positive terminal 24 of the automatic trigger switch is connected to one of the pins of the core processor, and the negative terminal is connected to the D line in the control motherboard. The vacuum pump is controlled by the core processor. The start or stop of the vacuum pump is automatically controlled by the feedback control circuit. When the urine drainage device 10 is in standby or sleep mode, the core processor applies a stable current to the positive terminal 24 of the automatic trigger switch and dynamically monitors the voltage value of the negative terminal connected to the D line. When the patient begins to urinate, the absorbent material 21 around the urethral opening absorbs the urine. The urine enters and is guided into the leak-proof housing 20, flowing through the automatic trigger switch. Based on the excellent conductivity of urine, the positive and negative terminals of the automatic trigger switch are connected by the urine. The core processor detects a significant voltage increase at the D-line terminal where the negative terminal is located compared to the initial voltage, and immediately starts the vacuum pump. The vacuum pump operates according to a preset negative pressure value. During this period, the pressure sensor dynamically monitors the negative pressure value in the negative pressure drainage container 28 or drainage tube 27 and feeds it back to the core processor, realizing dynamic adjustment of the negative pressure output by the vacuum pump. After the urine inside the leak-proof housing 20 is emptied by the negative pressure, the positive and negative terminals of the automatic trigger switch return to the disconnected state, the voltage at the D-line terminal returns to its initial state, and the vacuum pump automatically stops working or stops working after a delay.

2. The rapid automatic response urine drainage device according to claim 1 mainly includes a control motherboard, a vacuum pump, a pressure sensor, a gravity sensor, a communication module, and a human-machine interface; characterized in that: The outer periphery is provided with a physical interface for combining with a special drainage material. The physical interface includes a suspension component for suspending the negative pressure drainage container 28, which is located below the gravity sensor; a switch interface 14 for connecting an automatic trigger switch, which is located on the outer periphery of the control board; a negative pressure interface 30 that communicates with the negative pressure drainage container 28 or the drainage tube 27, and the negative pressure interface 30 is connected to the negative pressure gas path interface of the vacuum pump; and a pressure measuring interface that communicates with the negative pressure drainage container 28 or the drainage tube 27, which is connected to the pressure measuring port of the pressure sensor.

3. A special drainage material, comprising a wearable urine collection device, an automatic trigger switch, a drainage tube 27, and a negative pressure drainage container 28; characterized in that: The adsorbent material 21 is disposed inside the leak-proof housing 20, and the suction chamber 22 is disposed downstream of the leak-proof housing 20. The suction chamber 22 is combined with the adsorbent material 21 to collect the urine dynamically collected by the adsorbent material 21 into the suction chamber 22. The automatic trigger switch is disposed inside the leak-proof housing 20 and should be disposed in the part through which the urine will inevitably flow. The head end of the drainage tube 27 is connected to the suction chamber 22, and the end end of the drainage tube 27 is connected to the inner cavity of the negative pressure drainage container 28.

4. The special drainage material according to claim 3, characterized in that: The automatic trigger switch consists of a positive electrode, a negative electrode, and a two-core extension wire 26. The positive and negative electrodes must not be short-circuited or touch each other. The tails of the positive and negative electrodes are respectively connected to one end of the extension wire 26.

5. The special drainage material according to claim 3, characterized in that: The positive and negative electrode plates are placed in the flow channel inside the adsorption material 21, or the positive and negative electrode plates are placed in the suction cavity 22. The extension wires 26 of the positive and negative electrode plates are connected to the device connection terminal 37, and the device connection terminal 37 communicates with the urine drainage device 10.

6. The special drainage material according to claim 3, characterized in that: The two exposed metal cores at the head end of the extension wire 26 serve as the positive and negative terminals of the automatic trigger switch. The two metal cores of the extension wire 26 are arranged in a spaced manner, and the end of the extension wire 26 is provided with a device connection terminal 37.

7. The special drainage material according to claim 3, characterized in that: A limiting device is provided between the positive terminal 24 and the negative terminal of the automatic trigger switch, with the positive and negative terminals respectively fixed in the limiting groove or the limiting hole.

8. The special drainage material according to claim 3, characterized in that: The adsorbent material 21 adopts a composite structure. The surface layer that comes into contact with the urethral opening is made of medical non-woven fabric, and the inner layer is made of sponge or chemical fiber cotton. The sponge or chemical fiber cotton has drainage holes or drainage grooves inside.

9. A special drainage material according to claim 3, characterized in that: The negative pressure drainage container 28 is provided with an inlet 29, a negative pressure interface 30, and a urination switch 36. The inlet 29 and the negative pressure interface 30 are respectively located on the top of the negative pressure drainage container 28. The inlet 29 is connected to the end of the drainage tube 27. The negative pressure interface 30 is connected to the negative pressure port of the urine drainage device 10 through a negative pressure tube 31. The urination switch 36 is located at the bottom of the negative pressure drainage container 28.

10. A special drainage material according to claim 3, characterized in that: The negative pressure drainage container 28 adopts a combination structure of negative pressure drainage bottle 33 and urine collection bag 34. The negative pressure drainage bottle 33 is located upstream of the urine collection bag 34. The inlet 29 and negative pressure interface 30 are respectively located above the negative pressure drainage bottle 33. The negative pressure drainage bottle 33 and urine collection bag 34 are connected by an adapter or a conduit. An anti-backflow membrane 35 is provided at the combination of the negative pressure drainage bottle 33 and urine collection bag 34.

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