Bedside two-faeces nursing system

Abstract

This invention discloses a bedridden urination and defecation care system, belonging to the field of medical and nursing device technology. It includes a commode, which is connected to a water supply system via a purified water pipe. The commode is also connected to a waste suction system, which includes a waste tank connected to the commode and connected to a vacuum fan via a negative pressure pipeline. The commode is equipped with a return air vent and a warm air vent, both of which are connected to an air supply system. The air supply system includes a drying fan, and both the drying fan and the vacuum fan are connected to an air outlet pipeline. The air outlet pipeline is connected to the return air vent and the warm air vent. During the waste suction process, the vacuum fan operates, blowing air back towards the return air vent. Simultaneously, negative pressure suction provides positive pressure gas to the commode and preheats the air outlet pipeline.

Description

Technical Field

[0001] This invention belongs to the field of medical and nursing device technology, and specifically relates to a bedridden patient care system. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] The bedridden urination and defecation care system is an intelligent nursing device developed for disabled / semi-disabled individuals who are bedridden for short or long periods due to illness, old age, disability, or other reasons. It assists them in urination and defecation while in bed, greatly reduces the difficulty of urination and defecation care, reduces the workload of caregivers, improves the quality of life of bedridden individuals, and reduces the psychological burden on both parties.

[0004] While conventional bedpan and urination care systems can automatically collect and process waste from bedridden patients, they still have significant drawbacks in terms of practicality. These drawbacks are mainly as follows: ① Existing care systems use negative pressure to suction waste, which can also exert suction on the body's muscles, causing discomfort and even injury; ② In the initial stage of drying, cold air from the pipes in existing care systems blows directly onto the patient's skin, causing discomfort and even illness; ③ Existing care systems generally use activated carbon for deodorization, which often results in odor leakage. Furthermore, there is no suction treatment for odor at the commode end, preventing air circulation and causing odor to leak out, resulting in a noticeable unpleasant smell. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a bedridden urination and defecation care system that can greatly improve product performance and enhance user experience.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0007] In a first aspect, the present invention provides a bedridden urination and defecation care system, including a commode, which is connected to a water supply system via a purified water pipe; the commode is also connected to a sewage suction system, which includes a waste tank connected to the commode, and the waste tank is connected to a vacuum fan via a negative pressure pipeline; the commode is provided with a return air vent and a warm air vent, both of which are connected to an air supply system, which includes a drying fan, and both the drying fan and the vacuum fan are connected to an air outlet pipeline, which is connected to the return air vent and the warm air vent. During the sewage suction process, the vacuum fan operates, blowing air back towards the return air vent, providing positive pressure gas to the commode while simultaneously suctioning under negative pressure, and preheating the air outlet pipeline.

[0008] As a further technical solution, a three-way valve is installed at the connection between the drying fan, the vacuum fan, and the air outlet pipe. The three-way valve includes a valve body, in which a movable baffle is rotatably connected. The movable baffle is V-shaped, and the valve body has an air supply port connected to the air outlet pipe. When the air velocity from the drying fan side is greater than the air velocity from the vacuum fan side, the movable baffle turns to the right, and the air supply port becomes the air outlet of the drying fan. When the air velocity from the vacuum fan side is greater than the air velocity from the drying fan side, the movable baffle turns to the left, and the air supply port becomes the air outlet of the vacuum fan.

[0009] As a further technical solution, the air outlet duct is equipped with an air heater, which heats the airflow in the air outlet duct.

[0010] As a further technical solution, the air outlet duct is provided with a return air duct and a warm air duct, wherein the return air duct is connected to the return air outlet through a return air inlet, and the warm air duct is connected to the warm air outlet through a hot air inlet; a control valve plate is provided in the air outlet duct, the control valve plate is connected to a motor, and the motor drives the control valve plate to open one of the return air duct and the warm air duct.

[0011] As a further technical solution, the commode includes a detachable urinal cover and a commode base. The commode base includes a base body with a flat bottom and a commode section at the top. The upper part of the commode section is curved, and the top of the commode section is an inclined curved surface with a relatively low end and a relatively high end. The commode section gradually rises from the relatively low end to the relatively high end, and has a side stop at the relatively high end.

[0012] The toilet section is provided with a waste collection chamber, and the return air vent is located on the side of the waste collection chamber; the warm air vent is located on the side stop, and the warm air vent is a long hole, and multiple warm air vents are provided.

[0013] The toilet seat is equipped with a urine detection sensor and a feces detection sensor to sense the user's defecation status in real time; both the urine detection sensor and the feces detection sensor communicate with the control system.

[0014] As a further technical solution, the toilet seat is equipped with a flushing nozzle, which includes an upper nozzle and a lower nozzle. The upper nozzle is located above the side stop and flushes the urinary area at the front of the body; the lower nozzle is located below the side stop and flushes the anus. The waste collection chamber of the toilet seat is equipped with a flushing nozzle. The upper nozzle, lower nozzle, and flushing nozzle all communicate with the control system. The upper nozzle, lower nozzle, and flushing nozzle are all connected to a clean water pipe.

[0015] As a further technical solution, an air-water separator is installed between the negative pressure pipeline and the vacuum blower. The vacuum blower is also connected to a deodorization module. The deodorization module includes a deodorization filter module and a secondary deodorization module. The deodorization filter module is connected between the air-water separator and the air inlet side of the vacuum blower, and the secondary deodorization module is connected to the air outlet side of the vacuum blower.

[0016] The top of the waste bin is provided with an opening that connects to the suction pipe, which is connected to the toilet bowl; a liquid level sensor is installed inside the waste bin and is connected to the control system.

[0017] As a further technical solution, the deodorizing filter module includes a housing, with multiple filter boxes inside the housing. The filter boxes are filled with filter material, and adjacent filter boxes are separated by partitions. The partitions are partially perforated to restrict the gas filtration channels, and the partitions are arranged in multiple layers or columns.

[0018] As a further technical solution, the secondary deodorization module has a built-in plasma generator or negative ion generator; the gas-water separator includes a separation chamber, which is connected to an air inlet pipe. An air inlet is provided at the end of the air inlet pipe, an air outlet is provided at the top of the separation chamber, and a liquid outlet is provided at the bottom of the separation chamber. The air inlet of the gas-water separator is connected to a negative pressure pipeline, and the air outlet of the gas-water separator is connected to the deodorization filter module.

[0019] As a further technical solution, the water supply system includes a purified water tank and a storage tank, with a partition separating the two tanks. A solenoid valve is installed between the purified water tank and the storage tank, and the storage tank is connected to a purified water pipe. A heating module and a water electrolysis module are installed inside the storage tank. The heating module heats the water in the storage tank, and the water electrolysis module ionizes the water in the storage tank to generate hydrogen particles. A temperature sensor is installed inside the storage tank and is connected to a control system. Liquid level sensors are installed on the sides of both the purified water tank and the storage tank, and these sensors are connected to the control system, which is also connected to the solenoid valve.

[0020] The beneficial effects of the present invention are as follows:

[0021] The urination and defecation care system of the present invention is designed for disabled / semi-disabled individuals who are bedridden for short or long periods due to illness, old age, disability, or other reasons. It assists them with urination and defecation in bed by using vacuum suction, automatic flushing, drying, and deodorizing filtration to complete the user's urination and defecation tasks.

[0022] The two-way toilet care system of the present invention has a return air vent in the toilet and a vacuum fan supplies air to the return air vent. While performing negative pressure suction, air is blown from the air outlet to the return air vent. That is, while performing negative pressure suction, positive pressure gas is provided to the toilet, creating an air circuit effect inside the entire toilet. This can effectively circulate the air inside the toilet, expel odors in a timely manner, prevent them from spreading outwards, and avoid positive and negative pressure impact on the human body, thus improving human comfort.

[0023] In this invention's dual-use care system, a vacuum fan and a drying fan are connected to the air outlet duct via a three-way valve. The position of the movable baffle in the three-way valve is determined by the air output of the drying fan and the vacuum fan. During the vacuuming process, the vacuum fan operates while the drying fan does not. The air source in the air outlet duct is the air from the vacuum fan, which is supplied to the return air vent. This allows for preheating of the air outlet duct, solving the problem of cold air escaping during the initial drying stage in traditional dual-use care systems. During the drying process, the vacuum fan operates at low speed while the drying fan operates. The air source in the air outlet duct is the air from the drying fan, which is supplied to the warm air vent to dry the body.

[0024] The bedpan care system of this invention uses a vacuum fan to create a slight negative pressure zone inside the commode, drawing waste into the waste tank while simultaneously allowing odor to enter the suction system. The odor is separated into water molecules by an air-water separator, and then deodorized by a deodorizing filter module. Some of the gas is returned through the return air vent, while the rest is further deodorized by a secondary deodorizing module before being discharged. This effectively overcomes the problems of poor deodorization, odor emission, and odor leakage in traditional bedpan care systems, thus improving the user's bedpan defecation experience. Attached Figure Description

[0025] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] Figure 1 This is a schematic diagram of the bedridden urination and defecation care system of the present invention;

[0027] Figure 2 This is a schematic diagram of the water supply system of the present invention;

[0028] Figure 3 This is a schematic diagram of the sewage suction system of the present invention;

[0029] Figure 4 This is an external schematic diagram of the deodorizing filter module of the present invention;

[0030] Figure 5 This is a schematic diagram of the internal structure of the deodorizing filter module of the present invention;

[0031] Figure 6 This is a schematic diagram of the gas-water separator of the present invention;

[0032] Figure 7 This is a schematic diagram of the vacuum blower of the present invention;

[0033] Figure 8 This is a schematic diagram of the bottom base of the vacuum blower of the present invention;

[0034] Figure 9 This is another schematic diagram of the bottom base of the vacuum blower of the present invention;

[0035] Figure 10 This is a schematic diagram of the air supply system of the present invention;

[0036] Figure 11 This is a schematic diagram of the three-way valve of the present invention;

[0037] Figure 12 This is a schematic diagram of the toilet of the present invention;

[0038] Figure 13 This is a schematic diagram of the use of the toilet of the present invention;

[0039] Figure 14 This is a side view of the toilet seat of the present invention;

[0040] Figure 15 This is a top view of the toilet seat of the present invention;

[0041] Figure 16 This is a schematic diagram of the air outlet duct of the present invention;

[0042] Figure 17 This is a schematic diagram showing the connections of the various parts of the bedridden urination and defecation care system of the present invention;

[0043] In the diagram: the spacing or dimensions between parts have been exaggerated to show their positions; the diagram is for illustrative purposes only.

[0044] Among them, 1 is a water supply system; 101 is a clean water tank; 102 is a water storage tank; 103 is a water tank partition; 104 is a heating module; 105 is an electrolytic water module; 106 is a liquid level sensor; and 107 is a solenoid valve.

[0045] 2. Air supply system; 201 Drying fan, 202 Air heater, 203 Air outlet duct, 204 Three-way valve, 2041 Valve body, 2042 Movable baffle, 2043 Air supply port, 205 Air outlet;

[0046] 3. Sewage suction system; 301 Vacuum blower, 3011 Noise reduction housing, 302 Sewage tank, 303 Deodorization module, 3031 Housing, 3032 Partition, 3033 Partition, 3034 Opening and closing door, 3035 Handle, 304 Air-water separator, 3041 Separation chamber, 3042 Air inlet, 3043 Air outlet, 3044 Liquid outlet, 305 Sewage suction pipeline, 306 External interface, 307 Negative pressure pipeline, 308 Base, 3081 Vacuum blower mounting port, 3082 Exhaust gas discharge port;

[0047] 4. Toilet, 401. Urinal cover, 402. Toilet base, 4021. Base body, 4022. Toilet section, 40221. Side stop section, 40222. Waste collection chamber, 403. Pipeline connection plug, 404. One-way valve, 405. Warm air vent, 406. Control valve plate, 407. Upper nozzle, 408. Lower nozzle, 409. Flushing nozzle, 4010. First return air vent, 4011. Second return air vent, 4012. Motor;

[0048] 5. Cabinet; 6. Casters; 7. Pipes. Detailed Implementation

[0049] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0050] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, the present invention proposes a bedridden urination and defecation care system.

[0051] In a typical embodiment of the present invention, such as Figure 1 As shown, a bedridden patient care system is proposed, which mainly consists of a water supply system 1, an air supply system 2, a sewage suction system 3, a control system, and a commode 4. The water supply system, air supply system, sewage suction system, and control system are all located in a cabinet 5, which is equipped with casters 6 at the bottom and is movable. The cabinet 5 is connected to the commode 4 via a pipe 7.

[0052] The water supply system 1 consists of a purified water tank 101, a water storage tank 102, and a water pump. The purified water tank 101 and the water storage tank 102 are separately installed, with a water tank partition 103 between them. A solenoid valve 107 is installed between the purified water tank 101 and the water storage tank 102, and the purified water tank supplies water to the water storage tank through the solenoid valve. The purified water tank supplies water to the water storage tank by gravity, and the water volume in the water storage tank is controlled by the solenoid valve to meet the water consumption for one working cycle.

[0053] The water storage tank 102 is equipped with a heating module 104 and a water electrolysis module 105. The heating module 104 heats the water in the water storage tank 102 to a specified temperature, and the temperature is controlled by both a temperature sensor and a temperature control switch. The temperature sensor is connected to the control system, which controls whether the heating module operates.

[0054] The heating module 104 can be a heating plate, an electric heating wire, etc.

[0055] The water electrolysis module 105 generates hydrogen particles by ionizing water in the storage tank, thereby sterilizing the rinsing water. The water electrolysis module can utilize existing electrical components.

[0056] A level sensor 106 is installed on the side of the purified water tank 101, and a level sensor 106 is also installed on the side of the storage tank 102, to monitor the water level in the purified water tank 101 and the storage tank 102, respectively. The level sensors are connected to the control system, which can be equipped with an alarm to alert the user when the water level information is displayed. This is existing technology and will not be described in detail here. The control system is also connected to a solenoid valve 107 to control the opening of the solenoid valve, so that the purified water tank supplies water to the storage tank.

[0057] The water storage tank 102 is connected to a high-pressure water pump and a reversing valve. The water storage tank is connected to the toilet bowl through a clean water pipe to supply water for flushing the toilet bowl. The clean water pipe is placed inside pipe 7.

[0058] In this embodiment, the water tank 101 has two water filling modes: one is to fill water directly through the rubber stopper on its top, and the other is to remove the water tank and fill it with water from the outside. The water tank and the cabinet are connected by a snap fastener.

[0059] The working process of the water supply system is as follows:

[0060] After one work cycle, the solenoid valve opens, and the purified water tank replenishes the storage tank. The control system controls the opening and closing of the solenoid valve to bring the water level in the storage tank to the specified height. The heating module then starts, heating the water to the specified temperature. Once the heating module shuts off, the system enters standby mode. Simultaneously, the heating module periodically restarts during standby to ensure the water temperature remains within the set range. The heating module does not operate continuously, ensuring water heating safety.

[0061] During the rinsing process, the water pump draws water from the storage tank to rinse the personnel and equipment. The clean water tank is not replenished during this period to ensure a constant water temperature.

[0062] In addition, before the nursing system performs a vacuuming cycle, the water pump operates at a low speed to draw warm water from the storage tank and slowly spray it out from the flushing nozzle. This drains the water in the pipeline and preheats the pipeline without contacting the human body, ensuring that the water that comes into contact with the human body during the flushing cycle meets the set temperature.

[0063] The sludge suction system 3 mainly consists of a vacuum blower 301, a sludge bin 302, a deodorization module 303, and an air-water separator 304.

[0064] The waste bin 302 has an opening at the top for waste to flow in. The top opening of the waste bin is connected to the suction pipe 305 and the negative pressure pipe 307. The suction pipe is connected to the external interface 306, which is connected to the pipe 7, thereby connecting to the toilet for vacuuming the toilet.

[0065] A liquid level sensor can also be installed inside the waste tank 1 to monitor the liquid level of the waste in the waste tank. The liquid level sensor is connected to the control system, and the control system can issue an alarm based on the liquid level information.

[0066] The negative pressure pipeline 307 is used to evacuate the internal space of the waste bin, creating a negative pressure inside. The negative pressure pipeline 307 is connected to the vacuum fan 301. A gas-water separator 304 is installed between the negative pressure pipeline 307 and the vacuum fan 301. The vacuum fan 301 is also connected to the deodorization module 303. In this embodiment, a high-speed brushless fan is used as the vacuum fan.

[0067] The vacuum blower provides a negative pressure source, the air-water separator separates water molecules from the air entering the vacuum blower, and the deodorization module treats the odor in the exhaust gas. An inspection port can be installed at the beginning of the suction system for easy replacement of the air-water separator, deodorization module, etc.

[0068] The deodorization module 303 comprises two parts: a deodorization filter module and a secondary deodorization module. The deodorization filter module is connected between the gas-water separator 304 and the air inlet side of the vacuum fan 301, while the secondary deodorization module is connected to the air outlet side of the vacuum fan 301 to further deodorize the exhaust gas.

[0069] The deodorizing filter module includes a housing 3031, within which multiple filter boxes are installed. Each filter box is filled with filter material and is detachable from the housing. Adjacent filter boxes are separated by partitions, with the partitions partially perforated to restrict the gas filtration path. The detachable filter boxes can be replaced after a set usage period to ensure filtration effectiveness. The partially perforated partitions effectively limit the gas flow path, extending the gas flow through the filter module and ensuring effective odor filtration.

[0070] An openable switch door 3034 is provided on one side of the housing 3031. The switch door 3034 is equipped with a handle 3035. The odorous gas drawn in by the vacuum fan enters through one side of the housing 3031. The switch door 3034 facilitates the installation and replacement of the filter box and the cleaning of the housing.

[0071] To fully filter odors, the partition is provided with multiple layers or multiple rows, so that multiple layers of filter boxes are arranged vertically or multiple rows of filter boxes are arranged horizontally inside the housing 3031. That is, when the partition is arranged with multiple layers horizontally, the filter boxes are arranged vertically inside the housing 3031; when the partition is arranged with multiple rows vertically, the filter boxes are arranged horizontally inside the housing 3031.

[0072] The housing 3031 has at least two layers of partitions, with at least two partitions at the top and bottom, allowing multiple filter boxes to be arranged in multiple rows and columns, resulting in at least four filter boxes inside the housing. In this embodiment, the housing 3031 has four layers of vertical partitions 3033 arranged vertically, and three layers of horizontal partitions 3032 arranged on each side of the vertical partitions 3033, allowing for the placement of eight filter boxes. The housing 3031 has an air inlet on one side of the top vertical partition 3033 and an air outlet on the other side, allowing odorous gas to enter the housing 3031 through the air inlet. The three vertical partitions near the top of the housing 3031 are solid (not perforated structures), while the bottom vertical partition is perforated, allowing gas to pass through each filter box from top to bottom to the other side of the housing, and then flow from bottom to top, avoiding repeated filtration of the gas. The filtered gas is then directly discharged through the air outlet on the solid side.

[0073] At least one filter material is provided in the filter box. The filter materials in two adjacent filter boxes in the housing 3031 are the same or different, or filter boxes with different filter materials are arranged alternately in sequence. By setting different filter materials, the filtration effect of the filter box on the gas is increased.

[0074] In this embodiment, the filter material is one or more of activated carbon, solid alkali, and bio-self-treatment materials. The combination of multiple different filter materials effectively ensures the filtration effect on odors. Solid alkali is a micro-nano, green material and a catalytic oxidation material that can efficiently remove formaldehyde. It has a strong killing effect on bacteria, fungi, and viruses, but is non-toxic to animals, plants, and humans. The bio-self-treatment material adopts existing bio-self-treatment materials, which decompose and oxidize malodorous gases through biological strains, decomposing the malodorous gases into CO2, H2O, and other harmless and odorless gases, and then releasing them.

[0075] To further ensure that the emitted gas is odorless, the exhaust port of the vacuum fan is connected to a secondary deodorization module, which can further deodorize the gas. The secondary deodorization module has a built-in plasma generator or negative ion generator. Taking the plasma generator as an example, it continuously generates plasma to neutralize the odor throughout the working cycle. At the same time, it works periodically in standby mode to continuously clean the odor in the air and ensure the cleanliness of the living environment.

[0076] The gas-water separator 304 includes a separation chamber 3041, which is connected to an air inlet pipe. An air inlet 3042 is provided at the end of the air inlet pipe, an air outlet 3043 is provided at the top of the separation chamber 3041, and a liquid outlet 3044 is provided at the bottom of the separation chamber 3041. Moist air enters from the air inlet, circulates in the separation chamber, and is discharged from the air outlet, thereby leaving most of the water molecules in the separation chamber and finally discharging them from the liquid outlet, thus completing the gas-water separation.

[0077] The air inlet of the air-water separator 304 is connected to the negative pressure pipeline 307, and the air outlet of the air-water separator 304 is connected to the deodorizing filter module. The gas extracted from the sludge tank is first dehumidified by the air-water separator, and then deodorized by the deodorizing filter module.

[0078] The vacuum blower 301 is equipped with a noise-reducing housing 3011 to reduce the noise of the vacuum blower and ensure that it meets the usage requirements.

[0079] The vacuum blower 301 is mounted on the base 308 at the bottom. The base 308 has a vacuum blower mounting port 3081 at the top. The vacuum blower is fixed to the vacuum blower mounting port by bolts and fasteners. The deodorization module 303 and the gas-water separator 304 are also mounted on the base 308. The base 308 has an exhaust gas outlet 3082 at the bottom. The exhaust gas outlet is connected to the secondary deodorization module to discharge the deodorized exhaust gas.

[0080] The air supply system 2 consists of a drying fan 201, an air heater 202, connecting pipes, and other components. To increase the air supply for drying, the air supply system shares an air outlet pipe with the vacuum fan return air. The air source is controlled by a self-regulating three-way valve, which automatically adjusts the air source based on the air volume of the vacuum fan and the drying fan.

[0081] Specifically, both the drying fan 201 and the vacuum fan 301 are connected to the air outlet duct 203, and a three-way valve 204 is installed at the connection between the two and the air outlet duct. The vacuum fan 301 is provided with an air outlet 205 connected to the air outlet duct, and the air outlet 205 is connected to the three-way valve.

[0082] The three-way valve 204 includes a valve body 2041, with a movable baffle 2042 rotatably connected inside the valve body 2041. The movable baffle 2042 is V-shaped, and its opening size is adapted to the pipe diameter. The valve body 2041 is provided with an air supply port 2043 that is connected to the air outlet pipe 203. The air outlet pipe 203 is connected to the external interface 306, and the air outlet pipe 203 is connected to the warm air inlet and return air inlet of the toilet 4.

[0083] The position of the movable baffle 2042 is determined according to the air output of the drying fan and the vacuum fan. When the air velocity from the drying fan side is greater than that from the vacuum fan side, the movable baffle turns to the right, and the air supply port is the outlet of the drying fan. When the air velocity from the vacuum fan side is greater than that from the drying fan side, the movable baffle turns to the left, and the air supply port is the outlet of the vacuum fan.

[0084] The three-way valve in this embodiment can switch between two circulation loops. The three-way valve does not require power supply. Suction and drying can be flexibly switched through the three-way valve. They share a common toilet air supply pipeline, which makes the pipeline structure simpler. Two airflows are supplied at the same time. The stronger airflow can be allowed to pass through, while the other airflow is closed.

[0085] An air heater 202 is installed on the air outlet duct 203 to heat the airflow in the air outlet duct, ensuring that the air supplied to the toilet is hot air.

[0086] The air blower carries heat, which can preheat the pipes, so the air blown on the body is warm in the initial stage of drying.

[0087] The air supply system operates as follows: During the sewage suction cycle, the vacuum fan operates while the drying fan does not. The three-way valve supply port serves as the air source for the vacuum fan, which is also connected to the toilet's return air vent. The air heater operates at low power to heat the piping. When the drying cycle begins, the piping is heated. At this time, the drying fan speed is greater than the vacuum fan speed, and the air supply port serves as the air source for the drying fan. Simultaneously, the air supply port is connected to the toilet's warm air vent. Since the piping is preheated at this point, the air is hot immediately upon outlet.

[0088] The commode 4 is the part that comes into direct contact with the human body, including a urinal cover 401 and a commode base 402. The commode base 402 and the urinal cover 401 are detachably connected, and the urinal cover 401 can be removed from the commode base 402 for separate cleaning.

[0089] The toilet base 402 connects to the pipe connection plug 403, which in turn connects to the pipe 7. The pipe connection plug allows for a plug-and-play connection, facilitating user operation and post-use cleaning. The pipe connection plug 403 is equipped with a one-way valve 404 to ensure that waste is only drawn into the suction system from within the toilet. During operation, the one-way valve opens under vacuum to collect waste; in standby mode, the one-way valve closes to prevent odor leakage.

[0090] The toilet seat 402 includes a base body 4021, the bottom of which is flat and remains stable when placed on a bed; the top of the base body 4021 is provided with a toilet part 4022, which contacts the user's buttocks. The upper part of the toilet part 4022 is designed in a curved shape, and the upper curve of the toilet part 4022 is adapted to the position of the human buttocks, which meets the design requirements of ergonomics and is comfortable to wear.

[0091] The top of the commode 4022 is set as an inclined curved surface, which has a relatively low end and a relatively high end. The commode gradually rises from the relatively low end to the relatively high end. At the relatively high end, there is a side stop 40221, which can block the urination and defecation. When it is in contact with the human body, the relatively low end is in contact with the waist, the relatively high end is in contact with the buttocks, and the highest point of the commode is in contact with the sacrum. This inclined setting allows the legs to be raised slightly at a certain angle (such as 60°), which can increase the degree of the rectoanal angle and make defecation easier.

[0092] This commode features a sloping support design, with an elevated end that supports the user's thighs, making it more suitable for users to urinate and defecate while in bed, and facilitating defecation while in bed.

[0093] The commode unit 4022 is equipped with a waste collection chamber 40222, where feces and urine are temporarily stored, and then suctioned out by a vacuum system. The waste collection chamber 40222 can be configured as a U-shaped structure with protruding sides to ensure that feces and urine are stored in the collection chamber and to prevent them from flowing out and contaminating other parts.

[0094] One end of the urinal cover 401 is connected to the toilet base 402, and the other end is fitted against the human abdomen; the two sides of the urinal cover 401 can be connected to the toilet base through breathable bandages, thus making it in close contact with the human body.

[0095] The part of the commode base that comes into contact with the human body can be made of medical-grade flexible material, which has good breathability and waterproofness. When in use, it comes into contact with the soft skin of the human body, making people feel comfortable, avoiding water accumulation, and preventing bedsores caused by contact with the skin of the commode. The urinal cover can also be made of soft material.

[0096] The toilet seat 402 is equipped with urine and feces detection sensors to sense the user's defecation status in real time. Both the urine and feces detection sensors communicate with the control system.

[0097] The toilet seat 402 has a toilet section 4022 equipped with a flushing nozzle. Specifically, the flushing nozzle includes an upper nozzle 407 and a lower nozzle 408, both of which can be located on the side stop section 40221 of the toilet section 4022. The upper nozzle 407 is located at the upper part of the side stop section 40221 and flushes the front of the body where urine is applied. The lower nozzle 408 is located at the lower part of the side stop section 40221 and flushes the anus.

[0098] The waste collection chamber 4022 of the toilet 4022 is equipped with a flushing nozzle 409, which can be located at the U-shaped protrusion of the waste collection chamber 40222 to flush urine and feces on the toilet.

[0099] The upper nozzle 407, lower nozzle 408, and flushing nozzle 409 all communicate with the control system and control the nozzles to perform a flushing action when urine or feces are detected.

[0100] The upper nozzle 407 and lower nozzle 408 of the flushing nozzle, as well as the toilet flushing nozzle 409, are all connected to the water storage tank 102 of the water supply system 1 through a clean water pipe. The water storage tank provides water to the nozzles for flushing.

[0101] The nozzles of this toilet are arranged in a reasonable position, which can effectively flush the inner cavity of the toilet without dead corners; the nozzles for washing the human body have a wide spray coverage and appropriate pressure, which will not cause discomfort to the human body during washing, and can effectively wash away dirt.

[0102] The toilet unit 4022 is also equipped with a suction pipe that connects to the waste tank 302 of the suction system 3 to suck the excrement from the toilet unit into the waste tank.

[0103] The waste collection chamber 4022 of the toilet section 4022 is provided with a return air vent on the side. In this embodiment, there are two return air vents, namely the first return air vent 4010 and the second return air vent 4011. The first and second return air vents are symmetrically arranged on both sides of the flushing nozzle 409.

[0104] Both the first return air vent 4010 and the second return air vent 4011 are connected to the air outlet duct 203 of the air supply system 2 via pipes. When the toilet is subjected to negative pressure suction, air is blown from the air outlet duct to the two return air vents. At the same time as the negative pressure suction, positive pressure gas is provided to the toilet, creating an air loop effect inside the entire toilet. This effectively circulates the air inside the toilet, promptly expelling odors and preventing them from spreading outwards. Furthermore, there is no positive or negative pressure impact on the human body, thus improving human comfort.

[0105] The air outlet duct 203 has two ducts: a return air duct and a warm air duct. The return air duct connects to the first and second return air inlets via a return air inlet, while the warm air duct connects to the warm air outlet 405 via a hot air inlet. A control valve plate 406 is installed in the air outlet duct 203, and the control valve plate 406 is connected to a motor 4012. The motor can drive the control valve plate to open and close the two ducts of the air outlet duct. Specifically, the return air duct and the warm air duct are connected, and a motor is installed at the connection point of the two ducts. The motor can drive the control valve plate to rotate to block / open the return air duct and the warm air duct. When the control valve plate blocks the return air duct, the warm air duct is opened; when the control valve plate blocks the warm air duct, the return air duct is opened.

[0106] The warm air vent 405 is located on the side stop 40221 of the urinal section 4022. The warm air vent is a long strip hole, which is set vertically and multiple vents are evenly distributed on the upper and lower parts of the side stop to maximize the area and air volume of the warm air vent. The position of the warm air vent covers the urinal and anal areas, which helps to shorten the drying time.

[0107] This commode is ready to use immediately, suitable for short-term bedridden individuals and those who are aware of their own bowel and bladder functions. It is quickly put on when the user needs to defecate and can be removed afterward, without affecting the user's normal bedridden life. This commode can also be worn long-term for long-term bedridden individuals.

[0108] When using this commode, it can be worn in a side-lying position. First, the user lies on their side, then the commode is placed diagonally under the user's buttocks, and then the user is placed in a flat position. After fine-tuning it to a suitable position, it is tied with a breathable bandage to complete the wearing. Alternatively, it can be inserted under the user's buttocks from the front.

[0109] The commode is easy for users to put on and take off, allowing caregivers or patients with suitable physical conditions to put it on themselves. During use, the parts that fit the body are designed to fit snugly, ensuring a good seal within the commode cavity. It is comfortable to wear and provides good protection for the user's private parts. Furthermore, the commode has a compact structure and simple connection method, making it easy to assemble and disassemble. The overall external structure is suitable for patients to wear while lying in bed, without causing discomfort.

[0110] The working principle of the bedridden urination and defecation care system of this invention is as follows:

[0111] The entire nursing system's workflow is as follows: pre-start-rinse cycle-vacuum cycle-drying cycle.

[0112] The pre-start process is as follows: when the user defecates, the toilet automatically senses this through the urination and defecation detection sensor, and the control system starts the workflow. At the same time, the water pump of the water supply system runs at a low speed, so that the warm water in the water storage tank is slowly sprayed out from the flushing nozzle to pre-drain the cold water and ensure that the water is hot as soon as it comes out.

[0113] The flushing cycle is as follows: the water pump draws warm water from the storage tank and supplies it to the flushing nozzles and toilet flushing nozzles through the clean water pipe. The upper nozzle flushes the urinary area in front of the body, the lower nozzle flushes the anus, and the toilet flushing nozzles flush away urine and feces from the toilet. The upper nozzle, lower nozzle, and toilet flushing nozzles alternately operate to flush the equipment and the body.

[0114] The sewage circulation process is as follows: the vacuum fan operates, generating high-speed negative pressure air, which sucks the toilet waste into the sewage tank through the suction pipe. At the same time, the water vapor entering the sewage tank enters the negative pressure pipe under the action of the vacuum fan. It first flows through the air-water separator and becomes dry air. Then, the dry air flows through the deodorization filter module of the deodorization module. The exhaust gas from the vacuum fan is divided into two paths. One path enters the air outlet pipe through the three-way valve and finally reaches the toilet return air vent. The other path is further deodorized by the secondary deodorization module of the deodorization module before finally being discharged from the system.

[0115] During the vacuum cycle operation, the vacuum fan returns air into the outlet duct, and the air supply port of the three-way valve is the vacuum fan outlet. The vacuum fan return air can preheat the outlet duct. The warm air duct of the outlet duct is closed, the return air duct is opened, and the vacuum fan returns air into the toilet's return air port. Then, it re-enters the vacuum cycle through the suction duct. Because the air volume entering the toilet is always less than the air volume being sucked, the toilet is always under a slight negative pressure, ensuring that odor does not escape. At the same time, the odor flows repeatedly in the vacuum cycle, improving deodorization efficiency.

[0116] The drying cycle is as follows: the drying fan operates, and the drying pipeline has already been preheated in the sewage suction cycle to ensure that the air contacting the human body is at a suitable temperature. At this time, the air speed of the drying fan is greater than that of the vacuum fan, the air supply port of the three-way valve is the air source for the drying fan, the warm air pipe of the outlet pipe is open, and the return air pipe is closed. The air from the drying fan is heated by the air heater and then enters the warm air inlet of the toilet bowl to dry the urinary area and anus. Excess air is discharged through the sewage suction pipe at the exhaust port.

[0117] When the drying fan is working, the vacuum fan moves at a low speed to ensure that the gas inside the toilet bowl is in a flowing state, thus ensuring drying efficiency.

[0118] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A bedridden patient care system, characterized in that, The device includes a toilet bowl connected to a water supply system via a purified water pipe. The toilet bowl is also connected to a waste collection system, which includes a waste tank connected to the toilet bowl and connected to a vacuum fan via a negative pressure pipeline. The toilet bowl is equipped with a return air vent and a warm air vent, both connected to an air supply system. The air supply system includes a drying fan and a vacuum fan, both connected to an air outlet pipeline. The air outlet pipeline is connected to the return air vent and the warm air vent. During waste collection, the vacuum fan operates, blowing air back towards the return air vent. Simultaneously, negative pressure suction provides positive pressure gas to the toilet bowl and preheats the air outlet pipeline. A three-way valve is installed at the connection between the drying fan, the vacuum fan, and the air outlet pipe. The three-way valve includes a valve body, in which a movable baffle is rotatably connected. The movable baffle is V-shaped. The valve body has an air supply port connected to the air outlet pipe. When the air velocity from the drying fan side is greater than that from the vacuum fan side, the movable baffle turns to the right, and the air supply port is for the drying fan outlet. When the air velocity from the vacuum fan side is greater than that from the drying fan side, the movable baffle turns to the left, and the air supply port is for the vacuum fan outlet.

2. The bedridden urination and defecation care system as described in claim 1, characterized in that, An air heater is installed in the air outlet duct to heat the airflow in the air outlet duct.

3. The bedridden urination and defecation care system as described in claim 1, characterized in that, The air outlet duct is equipped with a return air duct and a warm air duct. The return air duct is connected to the return air outlet through a return air inlet, and the warm air duct is connected to the warm air outlet through a hot air inlet. A control valve plate is installed in the air outlet duct. The control valve plate is connected to a motor. The motor drives the control valve plate to open one of the return air duct and the warm air duct.

4. The bedridden urination and defecation care system as described in claim 1, characterized in that, The commode includes a detachable urinal cover and a commode base. The commode base includes a base body with a flat bottom and a commode section at the top. The upper part of the commode section is curved, and the top of the commode section is an inclined curved surface with a relatively low end and a relatively high end. The commode section gradually rises from the relatively low end to the relatively high end, and has a side stop at the relatively high end. The toilet section is equipped with a waste collection chamber, and the return air vent is located on the side of the waste collection chamber; the warm air vent is located on the side stop, and the warm air vent is an elongated hole, and multiple warm air vents are provided. The toilet seat is equipped with a urine detection sensor and a feces detection sensor to sense the user's defecation status in real time; both the urine detection sensor and the feces detection sensor communicate with the control system.

5. The bedridden urination and defecation care system as described in claim 4, characterized in that, The commode is equipped with a flushing nozzle, which includes an upper nozzle and a lower nozzle. The upper nozzle is located above the side stop and flushes the urinary area at the front of the body. The lower nozzle is located below the side stop and flushes the anus. The waste collection chamber of the commode is equipped with a flushing nozzle. The upper nozzle, lower nozzle, and flushing nozzle all communicate with the control system. The upper nozzle, lower nozzle, and flushing nozzle are all connected to a clean water pipe.

6. The bedridden urination and defecation care system as described in claim 1, characterized in that, A gas-water separator is installed between the negative pressure pipeline and the vacuum blower. The vacuum blower is also connected to the deodorization module, which includes a deodorization filter module and a secondary deodorization module. The deodorization filter module is connected between the gas-water separator and the air inlet side of the vacuum blower, and the secondary deodorization module is connected to the air outlet side of the vacuum blower. The top of the waste bin is provided with an opening that connects to the suction pipe, which is connected to the toilet bowl; a liquid level sensor is installed inside the waste bin and is connected to the control system.

7. The bedridden urination and defecation care system as described in claim 6, characterized in that, The deodorizing filter module includes a housing, inside which multiple filter boxes are arranged. The filter boxes are filled with filter material, and adjacent filter boxes are separated by partitions. The partitions are partially perforated to restrict the gas filtration channels, and the partitions are arranged in multiple layers or columns.

8. The bedridden urination and defecation care system as described in claim 6, characterized in that, The secondary deodorization module has a built-in plasma generator or negative ion generator; the gas-water separator includes a separation chamber, which is connected to an air inlet pipe. An air inlet is provided at the end of the air inlet pipe, an air outlet is provided at the top of the separation chamber, and a liquid outlet is provided at the bottom of the separation chamber. The air inlet of the gas-water separator is connected to a negative pressure pipeline, and the air outlet of the gas-water separator is connected to the deodorization filter module.

9. The bedridden urination and defecation care system as described in claim 1, characterized in that, The water supply system includes a purified water tank and a storage tank, with a partition separating them. A solenoid valve connects the purified water tank and the storage tank, and the storage tank is connected to a purified water pipe. A heating module and a water electrolysis module are installed inside the storage tank. The heating module heats the water in the storage tank, and the water electrolysis module ionizes the water to produce hydrogen particles. A temperature sensor is installed inside the storage tank and connected to a control system. Liquid level sensors are installed on the sides of both the purified water tank and the storage tank, and these sensors are also connected to the control system, which is further connected to the solenoid valve.

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