Apparatus and methods for supported mobile bathing

Abstract

Apparatus, methods, and devices for cleaning a human being including a chair-section to support the mass of the subject, a sprayer to deliver fluid to the skin of the subject, a freshwater tank to contain fluid, and a support with wheels to engage with the section and tank. Some devices may include a wastewater tank, a mobile tank cabinet, a drain in the base of the section, splash guards, a cabinet, a heater, a pump, a grab bar, a control system, or a combination thereof. The sprayer may include a push button, showerhead, or both. The support may include foot pedals that may control braking, heating, pumping, or a combination thereof. The control system may control for water flow, water temperature, volume of water in the freshwater tank, or a combination thereof.

Description

[0001] APPARATUS AND METHODS FOR SUPPORTED MOBIEE BATHING Priority Claim

[0002]

[0001] This application claims priority to and the benefit of United States Provisional Patent Application Serial Number 63 / 748,524, filed January 23, 2025, and entitled, “MobiBath.” The application is incorporated by reference herein in its entirety.

[0003] Background

[0004]

[0002] People with limited mobility, people undergoing decontamination after traumatic events, and bum survivors are forced to use sponge baths, inflatable tubs, mobile showers of sporadic stability that may be enclosed in tents or other temporary shelter, or other devices that are only partially effective and do not offer much patient comfort or caregiver ease. Traditional methods often require multiple caregivers and painful repositioning. Burn patients often experience extreme pain during hygiene care because the water temperature fluctuations can trigger nerve hypersensitivity, movement, repositioning, and friction worsens pain, and traditional showers or bed baths expose wounds to drafts and inconsistent water flow. Hydrotherapy rooms may help some patients, but they are often expensive, sporadically available, and difficult to access for non-ambulatory patients. A device and methods for controlled, reliable, and mobile human cleaning are needed.

[0005] Summary

[0006]

[0003] Apparatus, methods, and devices for cleaning a human being including a chair-section to support the mass of the subject, a sprayer to deliver fluid to the skin of the subject, a freshwater tank to contain fluid, and a support with wheels to engage with the section and tank. Some devices may include a wastewater tank, a mobile tank cabinet, a drain in the base of the section, splash guards, a cabinet, a heater, a pump, a grab bar, a control system, or a combination thereof. The sprayer may include a push button, showerhead, or both. The support may include foot pedals that may control braking, heating, pumping, or a combination thereof. The control system may control for water flow, water temperature, volume of water in the freshwater tank, or a combination thereof.

[0007] Figures

[0008]

[0004] Figure l is a sectional view of an embodiment of a device.

[0009]

[0005] Figure 2 is a sectional view from the side of an embodiment of a device to show how the device may lay horizontally.

[0006] Figure 3 is a schematic view of the fluid and pump systems of an embodiment of a device.

[0010]

[0007] Figure 4 is a three-dimensional view of a wheeled cabinet to house fluid storage tanks and main control panel of an embodiment of a device.

[0011]

[0008] Figure 5 is a schematic view of an embodiment of a chair section.

[0012]

[0009] Figure 6 is a schematic view of an embodiment of a mobile tank cabinet.

[0013]

[0010] Figure 7 is a sectional view of an embodiment of a chair section, mobile tank cabinet, and mobile tank cabinet after movement from the device.

[0014] Detailed Description

[0015]

[0011] The embodiments herein allow a care giver to administer a thorough and safe bathing operation that is more effective for patient cleanliness and hygiene than a sponge bath. This provides the patient with enhanced comfort and cleanliness.

[0016]

[0012] Figure 1 is a sectional view of an embodiment of a device. Roughly, embodiments herein feature three main components, a chair section 101 for patient support, a mobile tank cabinet 102 and a storage cabinet 103. The entire unit may be controlled by a push-button wireless remote (not shown in Figure 1) or control panel mounted on a wall 104 of the device within reach of the patient and caregiver.

[0017]

[0013] When not in use, the device will remain in the standard upright sitting position and may resemble a recliner mounted on top of a cabinet. Support for the bathing patient includes a chair section 101 that may be considered in four components - cushioned support for the back 105, seat 106, legs 107 and a sink base 107. The cushioned supports 105, 106, 107 may include a closed-cell thermoplastic elastomer such as polypropylene. In some embodiments, the material is a blend of plastic and rubber. Some embodiments may use a pillow (not shown in Figure 1) made of waterproof, durable, and mold and dust resistant material that is removeable by way of Velcro™ or a similar material. This will provide comfort and neck support during bathing.

[0018]

[0014] The chair section 101 may also have a magnetic, Velcro, or similar temporary adhesive function, a strip 105 that will run along the exterior side to allow for the hand-held shower sprayer (not shown in Figure 1) to be applied to it during the bathing process. Durning daily use or emergencies, since the exterior side is magnetic, the hand-held shower sprayer can stick to it to allow for a quick response. The chair section cushioning material to support the patient is selected to be semi-soft and can warm quickly to a patient’s temperature by spraying it withwarm water or have warm water flow through concealed warm-water channels hidden within the chair section upon activation of the unit. There may also be heating elements concealed within the chair section that warm the cushioning material upon activation.

[0019]

[0015] Figure 5 is a schematic view of a chair section 501 where a patient will be seated and bathed. It also shows drainage points 502, 503, splash guards 504, 505, a pivot point 506 to allow for the patient to recline, and a grab bar 508 for maneuverability. It also shows directions of recline 509, 510.

[0020]

[0016] The chair section may include linear drains running along the interior side wall of the chair section 511 as well as in the sink base 512. In the bottom of the sink base 512 and in the freshwater tank may also have pump assisted drainage. These pumps may be flow-activated pumps, using a flow switch that closes the electrical circuit only when water starts moving through a pipe, thus kicking the pump on. Some embodiments may benefit from a low-water cutoff or dry run protected cutoff for pumps that act as a safety device that stops a pump motor when water supply is lost. The primary purpose of sink base 512 is to prevent overflow by catching excess water. The chair section may also have an open seat or bowl 516 for the removal of solid waste, which will be transferred directly to the wastewater tank via a p-trap. Right before the p-trap there may be rim jets which are small, numerous holes found under the rim or seat that send water in a circular motion to rinse the bowl 516 or p-trap. These jets will be initiated after the user has been bathed and is no longer in the unit. This will help flush any solid waste that may have lodged in the drain components during bathing.

[0021]

[0017] The chair section may also be equipped with splash guards 504, 505. The splash or shower guards 504, 505 may be attached from within the interior of the cushioned supports 511 or externally, using clips (not shown in Figure 5). These splash guards 504, 505 may be retractable and fabricated from mildew-resistant, mold-proof, waterproof, and dust repellent materials.

[0022]

[0018] The alignment of the supports for the patient’s back 520, seat 521, legs 522, and sink base 512 may be adjusted from a standard sitting position to a reclined position using hydraulics or similarly robust and durable mechanisms by way of a foot pedal 519 located on the bottom of the device. The height adjustability will also operate in a similar fashion. The buttons to control the recline and height adjustability may be on a wireless remote or located on the side of the chair surface for easy access by the caregiver (similar to a hospital bed). The chair section may be ableto recline and be operated from a sitting position, a fully reclined position, or a position between sitting fully reclined.

[0023]

[0019] The device may also have a grab and push bar 508 for maneuverability located on the back of the chair section as seen in Figure 5. Also, in Figure 2, there is a pivot point 201 located just below center of the seat section 202 and where the seat and leg sections 202, 203 meet.

[0024]

[0020] Pivot point 201 may allow for the back and seat section to recline while pivot point 204 may work in conjunction with pivot point 201 to bring the legs and feet up in unison. There may also be hydraulic or electric arms installed on the cabinet or support 206 below the chair section and behind the leg and sink base sections 203, 205 to aid in recline mobility. The hydraulic and or electric arms (not pictured) may operate as follows: When the hydraulic or electric arms are not in use they will be in a vertical position behind the leg section 203.

[0025]

[0021] Returning to Figure 5, once activated, either by pressing a button on the wireless remote or by pressing down on the foot pedal 519, the arms 523 will gradually lower themselves in the direction of the sink base 512. These arms 523 will ride inside a track (not shown) that will be mounted on the back side of the leg base 525. These arms 523 will have wheels (not shown) at the ends to aid in movement as they travel along the track. As the height of the chair section is being adjusted, the arms 523 will extend in unison to compensate for the new adjusted height. Once the desired height is achieved, another button is pushed on the wireless remote or one that is located on the side of the chair or similar device to activate the arms 523 to begin their decent towards the sink base 512. As the arms 523 lower themselves, it gradually pushes the leg section 525 and sink base 512 out and upward, thus assisting and allowing the chair section to recline. These electric, hydraulic, or materials of similar use and durability will provide stability and support for the chair section. The number of arms 523 can be one or multiple depending on the weight of the patient.

[0026]

[0022] Figure 3 provides a dimensional view of a storage cabinet 330 that may house the mobile tank cabinet and support the chair section. The main control panel may be located on the inner wall of the storage cabinet, on the other side of the hydraulic or electric arms. The cabinet 330 may have a mobile caddy 333 positioned on either side of the frame 334 using magnets, Velcro™, or similar temporary adhesive support materials. This enhances usability and prevents accidental displacement of the caddy 333 during operation. This location helps with ease of use and reach for the caregiver. The caddy 333 may include a drying cubby for the handheld showersprayer 335, as well as additional compartments for storing personal hygiene items 336 such as body wash, a loofah, or bar soap. Some embodiments may also have a waste receptacle such as PPE disposal bins.

[0027]

[0023] Figure 3 is a schematic view of a mobile tank cabinet 301 that is removable and stands independently. A care giver may fdl and empty the tanks without moving the entire device. The cabinet 301 houses the fluid and pump systems. Figure 3 also shows a foot pedal 305 and pump 307, a rechargeable battery 308, and a nightlight 309. Additionally, the cabinet 301 may include a cabinet door 336 with a handle (not shown in Figure 3) to conceal the internal components and enhance aesthetic appeal. The cabinet door 336 may be secured with hinges and will snap shut securely. On the interior of the cabinet door there may be shelving 337. This shelving 337 provides extra storage space for cleaning materials 338 or other miscellaneous items. This door 336 may be attached using a strong durable material that is waterproof, low cost, good impact strength, high melting point and excellent tensile strength.

[0028]

[0024] Also, the cabinet 301 may also have the rechargeable battery 308, night light 309, and the wastewater pump 307 attached to the base 310. Wastewater pump 307 will remove excess water from the sink base and pump it directly into the wastewater tank 302 via line 339. The storage cabinet 301 rests on the base of the frame 310. This provides stability, support, and maneuverability. Figure 3 also shows storage for a retractable charging cord 311, a rear wheel 312, a wheel locking mechanism 313, and forward, central, and rear casters 314, 315, 316.

[0029]

[0025] Similarly, Figure 4 provides a three-dimensional view of a mobile tank cabinet 401. This embodiment features a vertically oriented freshwater tank 402 and wastewater tank 403. The main control panel 404 may also fit vertically within the cabinet 401.

[0030]

[0026] Figure 7 is a sectional view of an embodiment of a chair section 701, mobile tank cabinet 702, and mobile tank cabinet 703 after movement 720 from the device 704.

[0031]

[0027] The mobile tank cabinet 702 may be locked or snapped into place when being rolled in and out of the storage cabinet 705 for waste removal or refilling a freshwater tank 706. A distinct click may occur as the pins, latches, or a similar connection secures the mobile tank cabinet 702 in place. It may be necessary to squeeze, push, or lift a designated lever, handle, or button in order to release the mobile tank cabinet 702 from the storage cabinet 705. The mobile tank cabinet 702 may be held in place on a metal frame 707 and rest on undermount drawer slides with a locking mechanism. These slides may use small steel ball-bearings to assist with rollingthe mobile tank cabinet 702 in and out of the storage cabinet 705. The mobile tank cabinet 702 encompasses the wastewater tank 708, freshwater tank 706, wastewater pump 709, a screw-top immersion water heater with remote control functionality 710. The moved mobile tank cabinet 702 has a wastewater hose for disposal 711, a freshwater hose for filling 712, and a sealed compartment for controls (not shown in Figure 7). To maintain a fresh environment, the wastewater tank may use a deodorizer selected to break down organic waste, prevent clogs, and minimize odors. Some deodorizers may be selected for a pleasant scent. Compliance with wastewater disposal may include filtration or neutralization in-line cartridges.

[0032]

[0028] The mobile tank cabinet 703 after movement from the device 704 may be operated independently. The mobile tank cabinet 703 may position the freshwater and wastewater tanks 713, 714 and their hose configurations 711, 712. The retractable freshwater hose 712 and the wastewater hose 711 may be located either on the side or base of either tank as appropriate. The freshwater tank hose 712 is designed to accommodate a flexible, resilient silicone adapter 715 at its end that is compatible with various faucet dimensions. It will have the ability to be rolled over any style of faucet and create a tight seal that will prevent it from sliding off while filling. Once the tank is full, one may roll the silicone adapter off, towel dry, and put it away.

[0033]

[0029] The wastewater tank hose 711 will feature either a bell-shaped or cone-shaped terminal 716 to minimize splash back. Additionally, a cap located at the center of this end piece 716 may be affixed to the hose and equipped with a push-button mechanism to enable straightforward opening and closing, thereby facilitating controlled wastewater discharge and preventing accidental spills. The wastewater hose 711 will also come with a clip or other attachment to attach the wastewater hose to the toilet. This keeps the hose in place during the emptying process. The wastewater tank 714 may internally possess a slight slope. This slope will lead all the wastewater towards the entrance of the wastewater hose 711. This may allow it to be gravity fed and reduce or eliminate the need for a pump.

[0034]

[0030] Figure 6 shows a schematic view of the storage cabinet 601. It shows entry points 604, 605 of the wastewater pipe 606 and freshwater pipe 607. Both tanks will rest on a set of wheels 608, 609 independent of the storage cabinet 601 and may only be removed when the unit is powered off and disconnected from a power source such as an outlet. The wastewater tank 610 is positioned on top and freshwater tank 611 on the bottom because the wastewater tank 610 may be gravity fed or pumped out during the waste removal process. Also, there is an opening in thechair section to allow for solid waste removal. The tanks 610, 611 may be made of a UV protected high-density polyethylene (HDPE) and polypropylene (PP) plastic, or storage materials of similar structure and strength. These types of materials are known for their low cost, good impact strength, high melting point, and tensile strength. Some embodiments may use EPDM or Viton™ seals near heaters. Some embodiments may avoid PVC for tanks and seals exposed to sustained heat. Each tank may hold 3 to 6 gallons of fluid, or more. The pumps for each tank 610, 611 may be operated independently of each other. This will allow for emptying and or cleaning the wastewater tank and fdling the freshwater tank while the chair section is not in use.

[0035]

[0031] The freshwater tank's heating system may use zoning for temperature control. The immersion heater will heat water within a wide temperature range that will be based on personal needs. The possible temperature may be from 75-110 degrees Fahrenheit. The heating system may utilize a screw-top immersion water heater with temperature regulation managed via a waterproof, touch-operated, battery-powered, or rechargeable wireless remote. The immersion heater will heat water within a wide temperature range that will be based on personal needs. The heating element may have a screw-top to geometrically accommodate how the freshwater and wastewater tanks may be housed in a removeable cabinet. It will need to be removed for filling the freshwater tank, emptying the wastewater tank, and for maintenance purposes including cleaning and repairs. The screw-top immersible water heater may be unscrewed once the mobile cabinet tank system is removed from the storage cabinet. Some embodiments may be constructed of food-grade stainless and may include thermal cutoffs. It may have a guarded sheath in some embodiments. Some embodiments may wrap the freshwater tank with a radiantstyle heating loop with tight thermal coupling, robust insulation, and precise controls. Some embodiments may use silicone heat pads or band heaters bonded to the tank walls.

[0036]

[0032] Bonded pads with integrated thermostats may be selected and sized for some embodiments. Some embodiments may add high-R insulation such as closed-cell foam and reflective wrap and a thermal break under tanks. A loop type heating wrap may use electric heat cable routed in serpentine paths, bonded to the tank exterior with thermal epoxy and covered by insulation. Some wraps may be removable panels with quarter-turn fasteners for maintenance.

[0037]

[0033] Some embodiments may use an inline heater on the freshwater line. It heats only the water in use, reducing energy waste. Some embodiments may pair it with a recirculation loop to pre-warm the first liters. Some embodiments in remote, isolated, or emergency situations mayuse a plate heat exchanger with an external heat source such as when a vehicle or generator heat is available to recover waste heat efficiently. Some embodiments may use a modular heater harness with quick disconnects and a fused distribution panel. Some embodiments use a low-power band heater primarily for temperature maintenance, not aggressive heating.

[0038]

[0034] An internal pump within a freshwater tank will facilitate the flow of water to the handheld shower sprayer. The sprayer will incorporate a button style shower head shut-off valve with a retractable hose to regulate water flow and enhance usability. Additionally, the sprayer may feature an extended hose and magnetic handle, enabling usage from either side of the chair section. This flexibility allows for effective patient bathing when both caregiver hands are necessary. Some sprays may have an adjustable water flow rate of 1.5 to 2.5 gallons per minute and a spray pressure of 30 to 60 psi to provide a fine mist to medium spray. The handheld sprayer may have a sprayer that is designed to produce fine, aerosol-like mist or air-enriched droplets, often called “nebulizing mist” or “air-infused” heads. These heads create a softer, fuller feeling while using less water.

[0039]

[0035] Each tank may have a tempered glass window. It may be about as wide as an ink pen, and it may possibly be around 6 to 10 inches long. This window may indicate when the wastewater tank is empty, half full, and full. There may also be an alarm or flashing indicator light located somewhere on the device to alert the user that the wastewater tank is almost full, when it is full, and when it needs to be emptied. When the tanks are half full the indicator light may flash yellow and when it is full the indicator light may flash red. Similarly, when the freshwater tank is less than half empty there may be an indicator light that flashes blue with a water symbol as the indicator. There may also be a buzzer or Al voice alerting you that the freshwater is almost empty and the wastewater tank is almost full.

[0040]

[0036] The system may be powered in two separate ways, with a rechargeable battery with a 12-hour battery life and a long power cord that is retractable. The length of the power cord will be specified according to current safety standards and appropriate practices for using water in proximity to electrical sources. Exceeding 6 ft in length may provide a safe splash distance.

[0041]

[0037] The rechargeable battery allows the unit to be used while not being directly connected to an electrical socket. This facilitates mobility and helps prevent accidental electrocution and tripping hazards. The device may be plugged in and allowed to charge for 24 hours prior to use or other time period as needed by battery type. The battery type may be informed by the pumps,heater, and control loads. Some embodiments may use battery packs that are ruggedized, swappable modules for continuous operation. Some embodiments may use LiFePO4 (lithium ferrophosphate) batteries for their safety, cycle life, stability across temperatures, and lower fire risk than nickel, manganese, and cobalt batteries. The control panel may include a state of charge display and low voltage cutoff to protect cells.

[0042]

[0038] The remote control may recharge wirelessly, either while the unit is plugged into an outlet or by way of a rechargeable battery. In some embodiments, it may run off Double A, Triple A, C, or D batteries. This remote or control panel or both may be waterproof and control a heating element, a night light On / Oflf switch, recline, and both freshwater and wastewater discharge pumps. The wireless remote may have magnetic attachment elements, allowing it to be placed along the side of the chair section or on the side of the storage cabinet for ease of access. Upon placing the wireless remote onto the magnetic strip, it leaves the caregiver hands free in order to bathe a patient.

[0043]

[0039] The base of the device may include a nightlight, ensuring the devices functionality during power outages and offering a softer lighting option for individuals who are sensitive to bright light. The nightlight can be operated either by a push button located on the wireless remote, or it may automatically activate when the unit is turned on. Additionally, the nightlight may turn on automatically in dark conditions and switch off when a room’s lights are restored.

[0044]

[0040] A device may also have features that will integrate or work with health aid devices like Life Alert and other technologies to track body temperature, blood pressure and so on.

[0045]

[0041] Before introducing the unit, it is important to assess the user's mobility. This assessment helps determine whether the user needs only minimal assistance — such as walking to the unit with support from a caregiver, using transfer benches, or requiring wheelchair help — or if they require maximum assistance, including the use of bath lifts, hoists, and or being manually moved by caregivers. Regardless of what device is used to get into the unit, with height adjustability, the ability to recline, and a wide chair section, entry should accommodate the patient’s characteristics and the caregiver’s skill.

[0046]

[0042] The device is adjusted and placed as needed using the ergonomic grab bar that is on the back of the chair section. Before the patient is placed into the chair ensure the wheels of the unit are locked securely in place. This prevents the unit from moving and minimizes caregiver back strain. Also, confirm the support pillow for the head and neck is secured. The device may then beactivated to allow the screw-top immersible water heater to warm the water in the freshwater tank to a predetermined temperature. The chair section cushioning material is selected to be semi-soft and can warm quickly to a person’s temperature by rinsing it with warm water or have warm water flow through concealed warm-water channels hidden within the chair section upon activation of the device. There may also be heating elements or other heat sources concealed within the chair section that engages upon device activation. While the device is warming up, all the needed supplies to bathe the patient may be collected and stored in a cubby or within the caregiver’s reach. Also, the caregiver may confirm the patient is undressed and ready to bathe.

[0047]

[0043] When switching on the device, the freshwater and wastewater pumps may be activated. The wastewater tank may have a flow-activated pump which uses a flow switch that closes the electrical circuit only when water starts moving through the pipe, thus turning the pump on. It may be a low-water cutoff or dry run protected for pumps that act as a safety device that stops a pump motor when water supply is lost. These types of pumps stand ready for when they are needed. The subject may then be covered with a bath blanket, bath towel, or left nude as determined by the patient’s comfort level. The patient is moved from their current position, whether standing, sitting, or lying down, and placed into the unit using standard medical mobility aids. Once the subject is in a seated upright position, the caregiver will ensure the user is comfortable and supported. A bath blanket, also called a bath sheet, or bath towel may be useful to keep within reach of the caregiver. It is significantly larger than standard bath towels. They offer full-body coverage and high absorbency for a spa-like feel. A standard bath towel is smaller, more versatile, dries quickly, is easier to store and better for everyday tasks like drying hair.

[0048]

[0044] The caregiver will raise the splash guards into place using the wireless remote or manually. The device may be used while the patient is sitting in an upright position with knees bent at a 90-degree angle and feet resting in the sink base or in a reclined position.

[0049]

[0045] The height of the device may be adjusted by using the foot pedal that is located at the base of the device. To adjust the height, the caregiver may press down or pump the pedal which may be located to the left of the pedals. This may gradually increase the height of the chair section while it is still in its upright sitting position. Once the desired height is achieved, the caregiver may remove the foot off the pedal or stop pumping. If the patient is not comfortable remaining in the upright sitting position for the duration of their hygiene maintenance, thecaregiver may press down or pump the pedal on to the right of the pedals. This will cause the chair section to recline. Once the desired recline is reached, the caregiver may remove their foot from the pedal or stop pumping.

[0050]

[0046] Both foot pedals may be located next to each other for easier access and use. The pedals may be placed on either side of the unit depending on functionality. The left pedal may operate the height adjustability, and the right foot pedal may adjust the ability to recline. The controls may also be located on the wireless remote. Touch-operated buttons located on the wireless remote, such as with arrows pointing up or down, may control the recline of the chair section. The height of the device can be adjusted by using the foot pedal at the base of the device or arrows located on the wireless remote.

[0051]

[0047] If the water temperature requires adjustment, the caregiver may utilize the controls on the wireless remote or control panel to set it to a more comfortable temperature. Once the desired temperature is reached, the caregiver may begin bathing the user.

[0052]

[0048] The caregiver will activate the handheld shower sprayer by pressing the push button control valve, or a similar flow control device located on the neck of the sprayer. Heated water will be delivered to the shower sprayer via a pump situated within the freshwater tank. The caregiver will wet the hair while protecting the eyes and ears. Shampoo is applied with a gentle scalp massage. Once done, the hair is rinsed efficiently without splashing or pooling and the hand-held shower sprayer will be shut off. The water from the handheld shower sprayer will flow downward and be collected by the linear drains located on both sides of the chair section with any excess water captured by the sink base. The wastewater may then be pumped into the wastewater tank by the wastewater pump located below the sink base.

[0053]

[0049] The caregiver may then reposition a bath blanket to expose the patient’s upper body and extremities. The caregiver may use the hand-held shower sprayer by activating the push-button control valve and wet the exposed skin. Next, using bar soap or bodywash, lather a washcloth or loofah and wash the patient’s face, torso, and upper extremities. Be sure to use long, firm strokes to promote circulation.

[0054]

[0050] Once the upper body and extremities have been thoroughly cleaned, the caregiver may use the hand-held shower sprayer to rinse the user. Cover the patient’s upper body with the bath blanket or towel and assist them or ask them to roll onto their side using their own power.This will provide access to the patient’s back and bottom. Use the hand-held shower sprayer once again and wet the patient's back and bottom. Perform the same steps that were used to wash the upper body and extremities. Also, the patient is in a helpful position for the care giver to wash away any excess fecal matter if a bowel movement occurs during bathing. After cleaning the user’s back and bottom, use the hand-held shower sprayer to rinse away any fecal matter and soap residue down the drain and into the p-trap.

[0055]

[0051] Next, assist or roll the patient onto their back and remove the bath blanket or towel from the patient’s lower extremities. Cover the upper extremities with the bath blanket or towel to maintain warmth. Additional warmth will be provided by the warm -water channels or heating elements hidden within the chair section that will continue to circulate while the device is in use. The water may circulate from the freshwater tank into and through the warm-water channels and back down into the tank. This prevents the device from exhausting the freshwater tank before the caregiver completes the patient’s bath.

[0056]

[0052] Use the hand-held shower sprayer to rinse the legs and genitalia in preparation for being washed. Perform the same steps that were used to wash the upper body and extremities. Be sure to pay special attention to interdigital spaces (between toes and fingers), heels (pressure injury prevention), and skin folds. If the patient can maneuver and handle a washcloth or loofah, allow them to clean their genital area. If assistance is required and the user is a female, apply a clean pair of gloves and assist the patient into the dorsal recumbent position. This position is when the user is laying on their back with their knees bent and their feet are resting flat on the leg section of the chair section. This position provides access to the genital area as well as the legs and feet. Rinse the genital area and extremities thoroughly and cover with the bath blanket or towel.

[0057]

[0053] If the patient is male, he will be placed in the supine position. This is when the patient is lying flat on their back facing the ceiling. After a fresh pair of gloves are applied, carefully wash the genitals by having the user spread his legs apart. Once complete, rinse the patient and cover with the bath blanket or towel.

[0058]

[0054] Once the caregiver completes bathing the patient, they will use the push button shower control valve to shut off the water to the shower sprayer. Then the chair section is lowered and is readjusted back into the sitting position. Once bathing is complete, the patient may exit the device independently, with the assistance of a medical mobility device, or with support from acaregiver. Drying and dressing may then take place in an appropriate location. Tn some embodiments, the patient may also be dried and dressed while still in the device.

[0059]

[0055] Once the patient is removed from the device, it may be cleaned and emptied. The caregiver can use the shower sprayer to wash down any debris or human waste that may be sitting in the p-trap. The caregiver may use a plant-based, hypoallergenic cleaning spray along with a microfiber towel in some embodiments. Microfiber cloth possesses fine fibers that trap dirt, grease, bacteria and have a high absorbency. They are reusable, durable, and washing machine safe. Saturate the chair section with a cleaning spray and wipe down thoroughly. Next, use a toilet brush and the p-trap drain cleaner. This cleaner may have a goose neck bottle and have a higher concentration of cleaning agent because it does not come in contact with human skin. This cleaner will have a similar consistency to Soft Scrub™ with a pleasant scent. Apply a generous amount around the inside of the open seat of the chair section and use the toilet brush to scrub the area thoroughly. Once these steps are completed, use the hand-held shower sprayer and the rim jets to rinse the unit and allow it to air dry.

[0060]

[0056] Prior to removing the mobile tank cabinet, the chair section may be lowered and placed back into the upright sitting position. The chair section may not be reclined or lifted during the removal of the mobile tank cabinet due to interference with the cabinet’s ability to disengage from the unit.

[0061]

[0057] Next, the caregiver must remove the mobile tank cabinet from the storage cabinet to be emptied and refilled. This may use a slide latch lock to open the door of the storage cabinet. Then the care giver may press, pull, or push a release lever, handle, or button to disengage the freshwater, wastewater, and electrical connections. Once disengaged, the care giver may use the handle that may be built into the frame of the mobile tank cabinet’s frame. The unit is designed to be moved in and out of the storage cabinet using materials engineered for enhanced strength and durability, surpassing the performance of standard side or undermounted drawer slides commonly used in residential cabinetry.

[0062]

[0058] Slowly pull out the mobile tank cabinet and take it to the nearest drainage point. The drainage point can be a toilet, deep sink, or drain. Remove the wastewater tank’s hose and use its flexible clip that is attached to the bottom of the hose just before the bell or cone end and clip it onto the drainage point.

[0059] Once clipped, press the button labeled EMPTY that may be located on the neck of the wastewater tank hose, on the opposite side of the clip. This button will open the cap that may be in the center of the bell or cone shaped splash guard.

[0063] Once pressed, the cap will pop open and allow the wastewater tank to slowly empty. The wastewater tank’s waste may also be emptied by way of a pump. If there is a need to facilitate drainage in the wastewater tank, the caregiver may use a pitcher with a spout or a comparable vessel. Fill the selected container with water from the faucet. Carefully pour the water into the top access opening of the wastewater tank, ensure that the process is conducted slowly to minimize splashing and prevent abrupt surges at the drainage point.

[0064]

[0060] When the wastewater tank is empty, the center cap on the wastewater hose may be snapped shut when done. Use a bleach-based cleaning solution for the bell or cone splash guards as well as the cap, when wiping them down during clean up. The clip that attaches the wastewater hose to the drainage point, allows the caregiver to continue with other duties while it empties itself. The retractable hose may be replaced once it has been cleaned.

[0065]

[0061] Remove the freshwater hose and attach it to a nearby faucet or other water source. The end of the hose has a silicone adapter at the end that can be attached to any style of faucet. The silicone adapter creates a watertight seal that will allow unattended filling of the freshwater tank. Once the freshwater tank is filled, the retractable hose may be dried and replaced.

[0066]

[0062] Each wastewater and freshwater tank may feature a transparent window indicator. Eash window indicator may display empty, half-full, and refill levels for the freshwater tank, as well as half-full and maximum fill levels for the wastewater tank. An additional indicator may guide the caregiver on the appropriate quantity of blue, formaldehyde-free chemical solution — containing biocides (to eliminate bacteria), surfactants (to break down waste), fragrances, and dyes (to mask odors and conceal waste) — required to maintain optimal operation. The caregiver should introduce this pre-mixed liquid deodorizer into the wastewater tank via the top access opening, which may also serve as the connection point for the chair section p-trap. The precise volume of chemical solution may vary.

[0067]

[0063] The caregiver will roll the mobile tank cabinet back into the storage cabinet and lock it in place. The device will then be turned off either by the wireless remote or the control panel. To shut off the device hold the power button down until the power light goes off. Finally, the device will then be rolled back into its storage location.

[0064] Embodiments of the portable bathing system may enable rapid water decontamination. Aspects of the device may help with decontaminating water during emergencies. To begin, first fill the freshwater tank with water. Then, replace the freshwater hose and return the mobile tank cabinet to its designated location in the unit.

[0068]

[0065] The unit may have a button, such as a green button, located either on the rechargeable wireless remote or on the waterproof control panel that may be located on either side of the device. This option cannot be activated while the unit is in use for cleaning a patient. This option may be able to operate while the device is plugged in and or run off battery power.

[0069]

[0066] This may require the cabinet unit to have a small back-up battery that will only be accessed for this purpose. Once the device is instructed to engage in water decontamination, it may only activate the immersion water heater. The immersion water heater may heat the water up to 1 0 degrees Fahrenheit, or higher, for 1 to 5 minutes. The duration of time may vary due to elevation. 150 degrees Fahrenheit will quickly inactivate many common waterborne pathogens like Giardia, Salmonella, E. coli, and viruses. These are common elements found in water during power outages and boil water advisories. The freshwater tank may have an internal thermometer to ensure the proper boiling temperature is achieved and maintained for the duration of the decontamination process. It may also have a timer to ensure the water is heated to a boil for the desired duration.

[0070]

[0067] Once the desired time is reached, the immersion water heater will automatically shut off. There may be a buzzer, a chime, or other noise-making device, that will sound once the water is deemed cool and safe to drink. If the freshwater tank needs to be refdled, open the storage cabinet and remove the mobile tank cabinet. Attach the end of the freshwater hose to a faucet, refdl the tank and reinsert the mobile tank cabinet back into the cabinet. The temperature sensor will automatically sense the temperature of the water and begin the decontamination process again. As long as the control system is instructed to decontaminate water, i.e. the green button remains pressed in, the unit will stay in emergency mode. The water temperature may be displayed on a small screen on the control panel or on the wireless remote. After the buzzer sounds, the freshwater pump will activate, so that the newly decontaminated water can be dispensed into a jug or any other item by way of the handheld shower sprayer. The pump may operate in a low-power state to conserve battery life if there is no other power source available. The freshwater pump may be activated until the end of the emergency decontamination mode. Toend the emergency decontamination mode, the green decontamination button is pushed for a second time. The hand-held shower sprayer may remain at the end of the hose to dispense the water, or it may be removed to facilitate rapid water flow, etc., depending on the situation.

[0071] During the decontamination mode, a smaller back-up battery may be used to power both the immersion water heater and the freshwater pump.

[0072]

[0068] To reset the unit for daily use, engage the control system such as pressing and holding the main power button on the wireless remote or on the control panel until the controls change such as the power button flashes three times. The unit is now ready for daily use. During the reset process, power is diverted from the rechargeable back-up battery, back to the main rechargeable battery and or alternate power source.

[0073]

[0069] Embodiments of the portable bathing system may enable rapid, safe decontamination of individuals exposed to hazardous materials. Aspects of the device may help improve the risks associated with chemical, nuclear, and biological exposure in field operations, healthcare, disaster zones, first responders exposed to hazardous materials, pandemics, industrial accidents, and emergency preparedness such as aid in chemical exposure, floodwater contamination, or infectious disease outbreaks. Industrial and lab safety activities may benefit from using the device as a mobile rinse station for chemical spills or hazardous material exposure. Some embodiments may integrate with PPE removal protocols for clean transitions. The device may be made of thermoplastic elastomer or a similar rugged, resilient material. It may be determined based on specific decontamination agents that will be used and the type of contaminants that the device may be exposed to. The device’s mobility and relatively small stature in comparison to other decontamination gear may allow it to readily combine with rapid deployment kits for field medics.

[0074]

[0070] Embodiments useful as a decontamination unit may need three fluid storage tanks including fresh water (heated / not heated), decontamination solution, and wastewater. There may be a type of mixing valve that will be either before or after the freshwater and decontamination tanks. This can be calibrated to ensure proper, safe, and effective mixing of both solutions.

[0075] Drainage hoses may need to use open-loop drainage or connect into other decontamination systems. Drainage filters or neutralization cartridges may be needed. The power system may require more power, a larger rechargeable battery, a way to plug into generators, and modified controls. The base of the device may need ruggedization including wheel modifications such asthicker rubber or larger tires. The device may also possess tires that are heavy-duty pneumatic (air-filled), or solid / cushion types that are made from materials like rubber, polyurethane (PU), or polyamide (PA) for durability, chemical resistance, load-bearing or non-marking properties. Some embodiments may need more than one sprayer such as one for decontamination fluid and another for disinfecting the unit or one for the upper region and one for the lower region of the subject. Some embodiments may have more than one wastewater storage tank and may use color-coding to separate biohazardous runoff from standard rinse water.

[0076]

[0071] In some embodiments, the wastewater run-off, which may include contaminants, may travel through a floor sump or liner, coarse strainer, treatment cartridge, non-retum valve, containment hose, or decontamination bag or tank. Backflow prevention valves may be used in several places across the device to prevent backflow into fresh water or wastewater storage systems. Some embodiments may use an enclosure such as a tent that may attach to rails at the base of the device and may include an optional exhaust port ready for a negative pressure module.

[0077]

[0072] The controls may include a foot switch to minimize hand contact to trigger the freshwater, decontamination, or wastewater fluid pump, temperature control for the freshwater and decontamination fluid tanks, fluid flow to the handheld spray er / mister, or a combination thereof. The controls may also include lights to indicate status such as “rinse,” “agent,” “neutralize,” and “drain.”

[0078]

[0073] Several chemicals may be selected individually or in combination to facilitate decontamination including chlorine compounds such as bleach, quaternary ammonium compounds, phenolic compounds, iodophors (iodine-based compounds), alcohols such as ethanol, isopropanol, aldehydes such as formaldehyde and glutaraldehyde (toxic and requires ventilation), oxidizing agents such as hydrogen peroxide, peracetic acid, super-oxidized water, and chlorine dioxide, strong bases such as sodium hydroxide and calcium hydroxide (appropriate dilution and other safety precautions may be needed), detergents, and surfactants. The chemical or combination may inform the material selection for the device components including storage tanks, tubing, connections, cushioning material, splash shields, etc. Temperature control may be tailored for selected chemicals. Some of the selected materials may not require heating or heating may nullify the effectiveness of the decontamination compounds. If not needed, the heating element will not be added. It will vary on a case-by-case basis. Waste disposal may also requiredilution, combination with some other chemicals to neutralize the waste stream, solids fdtering or treatment, etc.

[0079]

[0074] Some embodiments may also benefit from using physical decontaminants supplied independently of the fluids in the freshwater and decontamination tanks such as hot air, Fuller’s earth, sunlight, and time.

[0080]

[0075] Embodiments described herein may be advantageous for bum survivors, patients with large regions of skin disturbances, or patients who are of such limited mobility that showering is not feasible. The chair section may be made of a medical-grade closed-cell thermoplastic elastomers such as polypropylene. This material combines rubber-like flexibility with thermoplastic strength, which makes it ideal for gentle, supportive surfaces that reduce pressure points and friction on hypersensitive burnt skin. There will also be a pillow made of waterproof, durable, mold and dust resistant material that is removeable by way of Velcro or a similar material. This will provide comfort and neck support during bathing.

[0081]

[0076] When the device is used for this purpose, its operation is similar to bathing a user. A variation may be the type of hand-held shower sprayer that is used. It may use a nebulizing mist (creates a very fine spray similar to fog), air-infused or oxygenated (air and water mix), airenriched (uses air to plump up droplets), and H2O kinetic sprayer (sculpts water into wave patterns giving the sensation of more water, warmth, and coverage without increasing flow rate).

[0082]

[0077] The type of rechargeable battery and pumps may change due to energy requirements. Some embodiments may benefit from single-patient-use liners to reduce cross-contamination, prevent the spread of infection, and protect fragile skin. It will also reduce clean-up time between users.

[0083]

[0078] Embodiments described herein may help with atraumatic cleansing and pain reduction through controlled, gentle bathing. The device may have a controlled water temperature, provide a stable environment, and gentle immersion due to hand-held shower mister versus sprayer. Warm, consistent water provided via a handheld mister helps soothe nerve endings, reduces muscle guarding, minimizes the shock of cold air exposure, and allows caregivers to clean without excessive manipulation. Wound cleansing without excessive handling may help when a patient is undergoing debridement, removal of slough and exudate, and cleansing before dressing changes.

[0079] Embodiments described herein allow caregivers to cleanse wounds while the patient remains supported and still. Also, due to its height adjustability and the ability to recline, it will reduce back strain on the caregiver and provide deeper comfort for the patient. It also reduces shear forces, skin pulling, repeated turning, and reduces risks of tearing fragile new tissue. The unit’s ergonomic support mirrors the goals of low trauma wound care.

[0084]

[0080] Embodiments described herein help with infection control by using a closed-loop drainage system that prevents contaminated water from pooling, reducing splashing and aerosolization compared to open showers, and minimizing the number of surfaces the patient must contact. Some embodiments may use single-patient-use liners or easy-to-disinfect surfaces which align with hospital infection prevention protocols for isolation and wound care.

[0085]

[0081] The device may help patients experience a reduced Need for Painful Transfers. That is, the device’s portable, bedside-ready design may mean for some patient’s fewer transfers, less friction on wounds, lower fall risk, and reduced caregiver strain. This supports safe patient handling and protects fragile skin.

[0086]

[0082] Further, the device may bring hydrotherapy-like benefits to the bedside such as softening eschar (thick, dark, leathery patch of dead tissue), preparing wounds for debridement, improving circulation, and reducing edema. This makes such benefits accessible in hospitals, rehabilitation centers, long-term care facilities, and home settings.

[0087]

[0083] Patients may experience emotional comfort and trauma-informed care during their use of the device because it provides a private, enclosed (splash guards), and warm environment, reduces exposure and vulnerability, helps caregivers to maintain the patient’s dignity and modesty, creates a predictable, calm bathing routine, and aligns with trauma-informed nursing care.

[0088]

[0084] The device provides support for long-term rehabilitation including gentle cleansing and patient placement for facilitating moisturizing routines and scar management, and range-of-motion support. The device’s warm immersion may loosen tight scar tissue, reduce stiffness, make stretching less painful, support ongoing hygiene needs, and transition from hospital to home with dignity and independence.

Claims

im:

1. A device for cleaning a human being, comprising:a chair section to support the mass of the subject;a sprayer to deliver fluid to the skin of the subject;a freshwater tank to contain fluid; anda support with wheels to engage with the section and tank.

2. The device of claim 1, further comprising a wastewater tank.

3. The device of claim 2, further comprising a mobile tank cabinet.

4. The device of claim 1, further comprising a drain in the base of the section.

5. The device of claim 1, wherein the chair section further comprises splash guards.

6. The device of claim 1, wherein the support comprises a cabinet.

7. The device of claim 1, wherein the freshwater tank comprises a heater.

8. The device of claim 1, wherein the freshwater tank comprises a pump.

9. The device of claim 1, wherein the sprayer comprises a push button.

10. The device of claim 1, wherein the sprayer comprises a shower head.

11. The device of claim 1, wherein the support comprises foot pedals.

12. The device of claim 11, wherein the foot pedals control braking, heating, pumping, or a combination thereof.

13. The device of claim 1, further comprises a grab bar.

14. The device of claim 1, further comprising a control system.

15. The device of claim 14, wherein the control system controls for water flow, water temperature, volume of water in the freshwater tank, or a combination thereof.

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