Toilet chair enabling repeated clean, waterless and odourless use

Abstract

The invention relates to a toilet chair (1) which enables repeated, clean, waterless and odorless use, wherein the toilet chair (1) comprises several support elements (2), a seat (3), two side armrests (4) and a backrest (5), wherein an opening (6) for bladder and / or bowel emptying is provided in the seat (3), which is characterized in that several bags (7) are provided for receiving urine and / or feces, wherein the respective bag openings are provided with retaining rings (8) which are inserted into the opening (6) of the seat (3) from the seat side and are fixed in the opening (6) by the retaining ring (8), wherein the retaining rings (8) are stackable, so that several retaining rings (8) with bags (7) arranged thereon can be inserted successively into the opening (6) of the seat (3).wherein, after each use of the toilet chair (1), a new bag (7) is inserted into the used bag (7) already present in the opening (6) of the toilet chair (1), so that the retaining rings (8) of the bags (7) lie on top of each other, thereby covering the contents of the used bag (7) with the new bag (7) to ensure the repeated, clean, waterless and odorless use of the toilet chair (1).

Description

[0001] The invention relates to a commode chair which enables repeated, clean, waterless, and odorless use. The commode chair is particularly suitable for use in home and / or care settings, especially for people with limited mobility.

[0002] Commode chairs are available in a wide variety of designs. In home and / or care settings, they are regularly used by individuals with severely limited mobility. Commode chairs are also used by people suffering from incontinence, particularly stress incontinence. The commode chair is typically placed in the bedroom or living room so that the user can access and use it quickly and easily. This is especially advantageous at night, as it eliminates the need for the user to go to the bathroom every time they need to use the toilet. For commode chairs to be accepted and used by their mostly elderly users, they should resemble a regular chair as closely as possible, be kept clean at all times, and reliably and odorlessly collect urine and feces.Furthermore, the toilet chair should be easy to clean and the excrement must be easy to dispose of.

[0003] The terms odorless and odorless are used synonymously in this revelation.

[0004] Portable toilets, such as those commonly used for camping, are unsuitable for this purpose because they look significantly different from a regular chair and would therefore be rejected by many older users. Furthermore, these camping toilets are usually small and not suitable for people with limited mobility, as getting up from a low camping toilet is virtually impossible for them. Additionally, the use and maintenance of camping toilets is complex, as they are typically filled with a chemical liquid that needs to be changed regularly.

[0005] German patent DE 202 06 063 U1 discloses a commode chair with a holder for a toilet bowl to be positioned under a toilet seat. However, the toilet bowl has the disadvantage that the waste inside is not stored in an odor-free manner. The bowl also requires regular cleaning. A comparable commode chair is known from German patent DE 297 03 161 U1, which can optionally be equipped with casters.

[0006] US Patent 6,523,187 B1 discloses a commode chair, specifically for toilet training young children. The commode chair has an opening in the seat, and several stacked collection bags for excrement are arranged within this opening. The individual bags are attached to a retaining ring and can be detached from the ring via perforations. Furthermore, the individual bags may contain absorbent material for the excrement. A disadvantage of this commode chair, however, is that the used bag must be removed from the opening after use before the commode chair can be used again. The removed bag must then be disposed of, which is not easily done for people with limited mobility, especially if the commode chair is used at night.Furthermore, the edges of the bag can become soiled by the user's excrement during use of the toilet chair, which can make the subsequent removal of the used bag unpleasant for the user.

[0007] US Patent 6,779,204 B1 discloses a conventional commode chair in which excrement is collected in a container. However, the excrement remains in the container until it is emptied, making repeated use unpleasant for many people. Furthermore, many people would not want the chair in the room, as it is immediately recognizable as a commode chair.

[0008] CN 110613562 B discloses a wheelchair with a toilet function. Even with this state of the art, excrement is collected in a container and remains there until the container is emptied.

[0009] Based on this prior art, the invention aims to provide a commode chair that is particularly suitable for use in home and care settings. The commode chair must be easy to use in everyday life, especially enabling repeated, clean, waterless, and odorless use. To this end, excrement must be collected safely and without odor and subsequently disposed of as easily as possible.

[0010] The object is solved according to the invention by a toilet chair which enables repeated, clean, waterless and odorless use, wherein the toilet chair comprises several support elements, a seat, two side armrests and a backrest, wherein an opening for bladder and / or bowel emptying is provided in the seat, which is characterized in that several bags for collecting urine and / or feces are provided, wherein the respective bag openings are equipped with retaining rings which are inserted into the opening of the seat from the seat side and are fixed in the opening by the retaining ring, wherein the retaining rings are stackable so that several retaining rings with bags arranged on them can be inserted successively into the opening of the seat, and wherein after each use of the toilet chair a new bag is inserted into the used bag already present in the opening of the toilet chair, so that the retaining rings of the bags lie on top of each other, whereby the contents of the used bag are covered by the new bag in order to ensure the repeated, clean, waterless and odorless use of the toilet chair.

[0011] The commode chair according to the invention is based on a commercially available chair, with, for example, four legs as support elements. However, other support elements are also possible, such as complete walls. The seat of the commode chair has a standard height, for example, between 30 cm and 60 cm, and in particular between 40 cm and 50 cm. The seat height is chosen so that the user can sit down and stand up from the commode chair as easily as possible. The two side armrests serve as support aids so that the user can brace themselves when sitting down and standing up. The backrest prevents the user from tipping backward when sitting down and standing up. Due to the aforementioned elements, the commode chair is particularly suitable for people with limited mobility or those who are weakened.

[0012] The user sits on the commode chair just like on a regular toilet, making it particularly easy to use. The waste is collected in the bag, which is secured in the opening of the seat by a retaining ring. After using the toilet, the user inserts a new bag with a retaining ring into the opening of the seat, so that the new bag is placed inside the existing one. The retaining ring of the new bag rests on top of the retaining ring of the existing bag, thus securing it in the opening of the seat. The waste in the existing bag is covered by the newly inserted bag, and because the retaining rings of the two bags are stacked on top of each other, the bag containing the waste is sealed. The waste in the older bag is thus isolated from the surroundings, effectively preventing unpleasant odors in the vicinity of the commode chair.

[0013] After inserting the new bag, the commode chair is ready for the next use. Since the new bag is only inserted into the used bag after the commode chair has been used, the cleanliness of the commode chair is guaranteed for the next use.

[0014] After a certain period of time, the used bags can be disposed of, for example, by caregivers, relatives, or even the user themselves, provided they are physically able to do so. To do this, the bags, along with their retaining rings, are removed from the opening in the seat and disposed of properly. A new retaining ring with a bag is then inserted into the opening in the seat, and the commode chair is ready for use again. The bags are conveniently designed as single-use items and are disposed of accordingly after use. Extensive cleaning of toilet bowls or similar containers is not necessary.

[0015] The toilet chair according to the invention is particularly simple in construction, and the use of the toilet chair is particularly simple and cost-effective due to the collection of excrement in disposable bags.

[0016] The commode chair can, for example, be placed near a user's bed, so that the user does not have to travel long distances to the toilet, especially at night. Bedridden people can also use the commode chair according to the invention as a full replacement for a normal toilet, provided they can use the commode chair next to the bed, if necessary with assistance. This avoids the use of bedpans or similar devices, which are usually perceived as unpleasant by bedridden people for psychological reasons.

[0017] In one embodiment of the invention, the retaining rings have the same shape and are flat or at least partially conical. For example, the retaining rings have a flat circular element which, when in use, rests on the seat of the commode chair or on the flat circular element of a bag with a retaining ring already inserted in the opening of the seat. The flat circular elements of the retaining rings are identical in shape. In another embodiment, a cylindrical, conical element can be arranged on each of the flat circular elements of the several bags, which project into the opening in the seat during use. The conical elements of the retaining rings allow several retaining rings to be easily stacked inside one another. The circular, flat element and, if applicable, theThe cylindrical, conical element ensures that the opening of a used bag is particularly well sealed by a newly inserted (unused) bag.

[0018] According to a particularly advantageous embodiment of the invention, the bags contain a liquid-absorbing agent. This agent solidifies the liquid components of the excretions, especially urine, so that the bag contains only solid components. This significantly simplifies the exchange and disposal of used bags, as bags filled with a solid material are considerably easier to handle than those filled with liquid. Furthermore, bags containing no liquids may typically be disposed of with normal household waste. The liquid-absorbing agent is, for example, a granulate and / or gel. A commonly used liquid-absorbing material is silica gel (also called silicic acid gel or silica gel), which has a gel-like, rubbery to solid consistency and exhibits highly hygroscopic properties.Preferably, the bags are supplied pre-filled with absorbent material. However, it is also conceivable that the user adds the absorbent material themselves. The amount of absorbent material is measured to ensure that the typical amount of fluid excreted during a single bowel movement can be safely absorbed.

[0019] According to one embodiment of the invention, the commode chair includes a toilet seat arranged above the opening of the seat. A toilet seat is a usually hinged, ring-shaped seat for a toilet. The toilet seat may also include a hinged lid. Such toilet seats are also commonly referred to as toilet seats or toilet lids. The opening of the ring-shaped toilet seat coincides with the opening in the seat of the commode chair.

[0020] In one embodiment of the invention, the commode chair includes an odor extraction system, preferably with a fan and a filter device. The odor extraction system serves in particular to extract and preferably eliminate odors during the use of the commode chair according to the invention. This is advantageous because the commode chair is designed for use in the bedroom and / or living room and not in a separate toilet room. The odor extraction system includes, for example, a fan for drawing air from the immediate vicinity of the commode chair, particularly in the area of ​​the seat opening. The drawn-in air is expediently passed through a filter device to eliminate odors. The filter device is based, for example, on an activated carbon filter or similar materials. The odor extraction system is battery-operated and / or has a power cord for connection to a household electrical supply.

[0021] According to a preferred embodiment of the invention, the commode chair includes a switch or motion detector for activating the odor extraction system when the commode chair is used. The switch is, for example, coupled to the optional toilet seat, in particular a hinged lid, so that opening the lid automatically activates the odor extraction system. The motion detector is advantageously positioned on the commode chair in such a way that it automatically activates the odor extraction system when the commode chair is used for toileting. After using the toilet, e.g., after closing the lid, the odor extraction system is switched off again, and a specific delay time can also be provided.

[0022] According to an advantageous embodiment of the invention, the commode chair includes a separate seat cushion for the seat surface, which covers the opening. This allows the commode chair according to the invention to also be used as a normal chair. For use, the seat cushion is removed, and the opening in the seat surface or the toilet seat at the opening is exposed. In particular, the seat cushion can cover the optional motion sensor for activating the odor extraction system, so that the motion sensor only activates the odor extraction system when the seat cushion is removed. Preferably, the seat cushion has a firm, stable underside to cover the opening in the seat surface. This is particularly advantageous when the opening does not include a toilet seat with a cover.

[0023] In an advantageous embodiment of the invention, the commode chair includes a cover in its lower section, so that one or more bags inserted in the opening are not visible. This makes the commode chair according to the invention virtually indistinguishable from a conventional chair, which will significantly improve its acceptance. The chair can thus be seamlessly integrated into a living room or bedroom. Advantageously, the cover is detachably connected to the commode chair so that it can be removed for cleaning purposes. Furthermore, the cover can be easily replaced to adapt the design of the commode chair to the living room or bedroom.

[0024] According to one embodiment of the invention, the bags are detachably connected to the associated retaining rings. This allows, for example, the used bags to be detached from the retaining rings and disposed of, while the retaining rings can be fitted with new bags. The bags are thus disposed of as single-use items along with the excrement they contain, while the retaining rings can be reused. Alternatively, the retaining rings are also designed as single-use items, so that they can be disposed of together with the bags.

[0025] In an advantageous embodiment of the invention, the retaining rings are made of cardboard or plastic, and the associated bags are preferably permanently attached to the retaining ring. The retaining ring and the bag are thus disposed of together. This secure attachment also ensures that the bag does not detach from the retaining ring, and the bags do not need to be attached to the respective bag by the user or another person. The use of cardboard or plastic is preferred because the retaining rings can be manufactured cost-effectively using these materials.

[0026] According to a practical embodiment of the invention, the bag openings and the retaining rings are matched so that the bags can be inserted into the retaining rings and fixed between the retaining ring and the seat surface or a previously inserted retaining ring. The retaining ring is thus folded over by the edge of the bag, so that the edge of the bag is clamped between the retaining ring and the seat surface or the already inserted retaining ring. This creates a secure, releasable connection between the bag and the retaining ring, which simultaneously provides a particularly good odor seal for the excrement in the used bag. In In this variant, the retaining rings can be reused, which is particularly ecological, as only the used bags containing the excrement are disposed of, which in this variant can be easily detached from the corresponding retaining ring.

[0027] The bags for the toilet chair according to the invention are comparable to commercially available garbage bags, but may have a thicker wall. The bags may also be equipped with a drawstring similar to those found on commercially available garbage bags, which can be useful for connecting the retaining ring to the bag and for later sealing the bag for disposal.

[0028] According to one embodiment of the invention, the two armrests are designed to be foldable or pivotable. This allows the armrests to be folded away or pivoted out of the user's range of motion, so that they do not obstruct the user's movements. This is particularly advantageous when a caregiver or another person assists a user of the commode chair, for example, when standing up or sitting down.

[0029] In In another embodiment of the invention, the commode chair comprises casters, in particular lockable casters or casters that lock automatically when loaded. The casters allow the commode chair to be moved easily. The locked casters ensure that the commode chair does not move during use, especially when sitting down or standing up. The lockable casters must be engaged, i.e., locked, by the user. The automatic casters lock automatically when loaded, particularly when subjected to vertical load. However, the automatic casters do not lock during horizontal movement, i.e., when the commode chair is rolled across a substantially horizontal floor.

[0030] According to a particularly advantageous embodiment of the invention, the commode chair comprises at least one sensor for monitoring its use. Monitoring fluid balance is particularly beneficial for elderly people, as they tend to drink less than their health requires. Monitoring fluid balance is also useful in care settings. In addition to recording the amount of fluid ingested, monitoring fluid balance also requires determining the amount of fluid excreted. The frequency of toilet use is one indicator of the amount of fluid excreted. For this purpose, the commode chair according to the invention is preferably equipped with a sensor for monitoring its use.

[0031] According to one embodiment of the invention, at least one sensor monitors the time and / or duration of use of the toilet chair. From this, for example, the likely amount of liquid expelled can be determined.

[0032] In a preferred embodiment of the invention, at least one sensor monitors the result of using the commode chair, in particular the amount of excrement ingested. Based on the amount of excrement ingested during each use, it can be determined whether only urine or both urine and feces were ingested. From this, it can be deduced how much fluid was excreted during the respective use. Thus, the user's fluid balance can be monitored even more precisely.

[0033] According to one embodiment of the invention, the at least one sensor is a weight sensor, a camera, an odor sensor, a motion sensor or a comparable sensor, which is designed to detect the use and preferably further details about the excretions during use.

[0034] According to a convenient embodiment of the invention, the camera is arranged on the underside of the toilet seat, in particular the seat itself, and automatically takes a picture of the bag inserted in the opening of the commode when the toilet seat, in particular the seat itself, is opened. Since the toilet seat is folded down onto the seat surface during use, so that the opening of the toilet seat coincides with the opening in the seat surface, the camera attached to the underside of the toilet seat is obscured by the seat surface, thus preventing the camera from taking pictures during use. After use, a new bag is inserted into the opening in the seat surface, for which the toilet seat must first be folded up.At this point, the camera on the underside of the toilet seat takes a picture of the contents of the bag, specifically the excrement it contains. This camera image can then be analyzed, for example, to determine the type and / or quantity of the excrement. Further details about the excrement, such as consistency, color, or similar properties, can also be recorded.

[0035] In a particularly advantageous embodiment of the invention, the commode chair further comprises an evaluation and / or diagnostic unit for processing the information from the at least one sensor, in particular regarding the duration of use of the commode chair and / or the diagnosis of the excrement after use of the commode chair. The evaluation and / or diagnostic unit can provide long-term information, in particular regarding the duration of use of the commode chair, and / or information regarding current use, such as the quantity, consistency, and color of the excrement, and so on.

[0036] Furthermore, the bag may contain specific diagnostic substances that react with certain components in the excretions. For example, a diagnostic substance might change color, and this change would be detected by a camera. This allows for the immediate identification of specific components in the excretions, such as the detection of blood.

[0037] According to a preferred embodiment of the invention, the evaluation and / or diagnostic unit further comprises communication means for transmitting information or alarms to a central monitoring station, particularly in the event of unusual usage patterns or a complete lack of use. For example, if the commode chair is not used for a predetermined period or is in continuous use, direct contact can be made with the user. If this is unsuccessful, an on-site inspection can be arranged. Furthermore, recorded information regarding the analysis of excrement could be promptly transmitted to a central monitoring station, and a medical examination could be conducted if necessary.

[0038] According to a preferred embodiment of the invention, the evaluation and / or diagnostic unit can be controlled by means of a mobile device, in particular an app on the mobile device. The app can provide a clear graphical user interface and, for example, additionally display the evaluation and / or diagnostic data graphically in a simple manner.

[0039] In a further advantageous embodiment of the invention, the toilet chair includes an alarm button for manually triggering an alarm to at least one contact person and / or a central emergency response team. This allows a user of the toilet chair to easily and quickly call for help in an emergency.

[0040] According to another embodiment, the toilet chair can include a voice input and / or voice output unit, in particular to give instructions to the user or to receive inputs such as voice-activated alarms from the user. The voice input and / or voice output unit simplifies the use of the toilet chair according to the invention.

[0041] The invention further relates to a method for using a toilet chair, in particular a toilet chair according to the invention. The method comprises the following steps: Inserting a first bag into an opening in the seat of the toilet chair, wherein the bag opening is provided with a retaining ring and the bag is inserted into the opening of the seat from the seat side and is fixed in the opening by the retaining ring; inserting another bag into the opening in the seat of the toilet chair and into the bag already therein, so that the further bag closes the opening of the first bag, wherein the bag opening of the further bag is provided with a retaining ring and the further bag is inserted into the opening of the seat from the seat side and is fixed in the opening by the retaining ring.

[0042] The user sits on the commode chair just like on a regular toilet, making it particularly easy to use. The waste is collected in the bag inserted into the opening of the seat, which is secured by a retaining ring. After using the toilet, the user inserts a new bag with a retaining ring into the opening of the seat, so that the new bag is placed inside the existing one. The retaining ring of the new bag rests on top of the retaining ring of the existing bag, thus securing it in the opening of the seat. The waste in the existing bag is covered by the newly inserted bag, and the stacking of the retaining rings of the two bags seals the bag containing the waste.The excrement in the older bag is thus isolated from the surroundings, effectively preventing odor nuisance in the vicinity of the toilet chair.

[0043] After inserting the new bag, the commode chair is ready for the next use. Since the new bag is only inserted into the used bag after the commode chair has been used, the cleanliness of the commode chair is guaranteed for the next use.

[0044] After a certain period of time, the used bags can be disposed of, for example, by caregivers, relatives, or even the user themselves, provided they are physically able to do so. To do this, the bags, along with their retaining rings, are removed from the opening in the seat and disposed of properly. A new retaining ring with a bag is then inserted into the opening in the seat, and the commode chair is ready for use again. The bags are conveniently designed as single-use items and are disposed of accordingly after use. Extensive cleaning of toilet bowls or similar containers is not necessary.

[0045] The toilet chair according to the invention is particularly simple in construction and, by collecting the excrement in bags, especially disposable bags, the use of the toilet chair is particularly simple and cost-effective.

[0046] The commode chair can, for example, be placed near a user's bed, so that the user does not have to travel long distances to the toilet, especially at night. Bedridden people can also use the commode chair according to the invention as a full replacement for a normal toilet, provided they can use the commode chair next to the bed, if necessary with assistance. This avoids the use of bedpans or similar devices, which are usually perceived as unpleasant by bedridden people for psychological reasons.

[0047] The invention will now be explained in more detail with reference to exemplary embodiments illustrated in the accompanying figures. These show: Fig. 1 a perspective view of a toilet chair according to the invention, Fig. 2 a detailed view of the opening in the seat of the toilet chair made of Fig. 1 Fig. 3 shows a detailed view of a bag 7 with retaining ring 8 for a toilet chair according to Fig. 1 , Fig. 4 a detailed view of a toilet chair odor vent made of Fig. 1 , and Fig. 5 a perspective view of the toilet chair made of Fig. 1 with a seat cushion on the seat.

[0048] Fig. 1 Figure 1 shows a perspective view of a toilet chair 1 according to the invention, which enables repeated, clean, waterless and odorless use. The toilet chair 1 comprises several support elements 2, specifically four chair legs. Furthermore, the toilet chair 1 comprises a seat 3, two armrests 4 and a backrest 5.

[0049] In The seat 3 has an opening 6 for bladder and / or bowel emptying. According to the present invention, the toilet chair 1 comprises several bags 7 for collecting urine and / or feces, wherein in the Fig. 1 Only one bag 7 is shown. The bag openings each have a retaining ring 8, whereby a bag 6 is inserted from the seat surface side into the opening 6 of the seat surface 3 and is fixed in the opening 6 of the seat surface 3 by the retaining ring 8.

[0050] According to the present invention, the retaining rings 8 are stackable, so that several retaining rings 8 with bags 7 attached to them can be inserted successively into the opening 6 of the seat surface 3. In particular, the retaining rings 8 have the same shape and are flat or at least partially conical. The flat or partially conical retaining rings 8 can be stacked on top of or inside each other.

[0051] Again Fig. 1 As can be seen, the toilet chair 1 comprises a toilet seat 10, which is arranged above the opening 6 of the seat surface 3. The toilet seat 10 is preferably a commercially available toilet seat, which is usually mounted on the known toilet bowls. Advantageously, the toilet seat 10 is designed to be foldable, i.e., it can be folded down onto the opening 6 of the seat surface or folded up towards the backrest 5. According to the Fig. 1 In the illustrated embodiment, the toilet seat 10 does not include a cover. However, it is also possible, in principle, for the toilet chair 1 according to the invention to comprise a toilet seat 10 with a toilet lid and a cover. In Fig. 1 The toilet seat 10 is folded down, i.e. positioned above the edge of the opening 6 of the seat surface 3. In Fig. 2 The toilet seat 10 is folded up and the opening 6 in the seat surface 3 with the bag 7 with retaining ring 8 arranged therein is exposed.

[0052] Fig. 3 Figure 1 shows a detailed view of a bag 7 with a retaining ring 8. Advantageously, the bag 7 is detachably connected to the retaining ring 8. In particular, the bag 7 is inserted into the retaining ring 8, and the bag opening, i.e., the edge of the bag opening, is wrapped radially outwards around the retaining ring 8, so that preferably the entire retaining ring 8 is enclosed by the bag opening. Alternatively, the bag 7 is permanently attached to the retaining ring 8, and both are disposed of together after use.

[0053] Fig. 6a Figure 1 shows in detail how the retaining rings 8 with attached bags 7 can be stacked inside one another. The upper part of the retaining rings is flat, allowing them to be stacked on top of each other to save space. The downward-facing part of the retaining rings 8, which is used in the desired position, is conical, allowing these parts of the retaining rings 8 to be stacked inside each other. Fig. 6b shows a detailed view of two stacked retaining rings 8 and Fig. 6c A side view of two retaining rings 8 during stacking. In particular, Fig. 6c to remove the conical lower part of the retaining ring 8. Fig. 6d Figure 1 shows in detail how the bag 7 is wrapped around the retaining ring 8. The bag openings and the retaining rings 8 are thus matched so that the bags 7 can be inserted into the retaining rings 8 and fixed between the retaining ring 8 and the seat surface 3 or a previously inserted retaining ring 8. According to an embodiment of the invention, the bag 7 can also be elastic, with a bag opening that is smaller than the retaining ring 8. Due to the elasticity, the bag opening can be widened and the retaining ring 8 inserted into the bag opening, with the bag being fixed in the retaining ring 8 by the elastic forces.

[0054] For example, the Figur 3 As can be seen, the bags 7 each contain a fluid-absorbing agent 9 to absorb and bind the liquid components of the excretions through bladder and / or bowel emptying.

[0055] According to a convenient embodiment of the invention, the toilet chair 1 includes an odor vent 11. The odor vent 11 is described in detail, for example, in the Fig. 4 The odor extraction system 11, for example, includes a fan and a filter device. Air is drawn in from the area around the opening 6 of the seat 3 by means of the fan and purified of odors by the filter device, such as an activated carbon filter.

[0056] In an advantageous embodiment of the invention, the toilet chair 1 comprises a switch or motion detector 12 for activating the odor extraction system 11 when the toilet chair 1 is used. According to the embodiment shown in Fig. 1 The odor extractor 11 is connected to a motion detector 12, which activates the odor extractor 11 as soon as the user sits on the toilet seat 10. The odor extractor 11 can be powered by batteries or a rechargeable battery, or via a mains adapter.

[0057] As in Fig. 5 As shown, the toilet chair 1 according to the invention can further comprise a separate seat cushion 13, which is arranged on the seat surface 3 and covers the opening 6. Advantageously, the seat cushion 13 is rigidly formed on the underside in order to securely cover the opening 6 in the seat surface 3. For example, the underside of the seat cushion 13 is provided with a wooden board or similar material. In particular, the seat cushion 13 can at least partially cover the motion detector 12 (not in Fig. 5 (as shown), so that the motion detector 12 is only activated when there is no seat cushion 13 on the seat 3 of the toilet chair 1. This prevents the odor vent 11 from being activated when someone sits on the seat cushion 13, i.e., when they are not using the toilet chair 1 for bladder and / or bowel emptying.

[0058] Again Figur 5The toilet chair 1 according to the invention, which can be further removed, includes, for example, covers 14 between the chair legs to conceal the bags 7 inserted in the opening 6 of the seat 3. With seat cushions 13 and covers 14, the toilet chair 1 according to the invention is hardly distinguishable from a commercially available chair. The toilet chair can thus be integrated into a bedroom or living room without being particularly conspicuous. Reference symbol list

[0059] 1. Toilet chair 2. Base 3. Seat 4. Armrest 5. Backrest 6. Opening (seat) 7. Bag 8. Retaining ring 9. Liquid-absorbing agent 10. Toilet seat 11. Odor vent 12. Motion sensor 13. Seat cushion 14. Cover

Claims

1. Toilet chair (1) which enables repeated, clean, waterless and odorless use, wherein the toilet chair (1) comprises several support elements (2), a seat (3), two side armrests (4) and a backrest (5), wherein the seat (3) has an opening (6) for bladder and / or bowel emptying, characterized by the fact thatSeveral bags (7) are provided for collecting urine and / or feces, the respective bag openings being equipped with retaining rings (8) which are inserted from the seat surface into the opening (6) of the seat surface (3) and are fixed in the opening (6) by the retaining ring (8), the retaining rings (8) being stackable so that several retaining rings (8) with bags (7) attached to them can be inserted successively into the opening (6) of the seat surface (3), after each use of the toilet chair (1) a new bag (7) is inserted into the used bag (7) already in the opening (6) of the toilet chair (1) so that the retaining rings (8) of the bags (7) lie on top of each other, thereby covering the contents of the used bag (7) by the new bag (7) to ensure the repeated, clean, waterless and odorless use of the toilet chair (1).

2. Toilet chair (1) according to claim 1, characterized by the fact thatthe retaining rings (8) have the same shape and are flat or at least partially conical.

3. Toilet chair (1) according to claim 1 or claim 2, characterized by the fact that the bags (7) contain a liquid-absorbing agent (9).

4. Toilet chair (1) according to one of claims 1 to 3, characterized by the fact that the toilet chair (1) comprises an odor vent (11), preferably with a fan and a filter device, wherein the toilet chair (1) preferably comprises a switch or motion detector (12) for activating the odor vent (11) when the toilet chair (1) is used.

5. Toilet chair (1) according to one of claims 1 to 4, characterized by the fact that the bags (7) are detachably connected to the associated retaining rings (8) or the retaining rings are designed as disposable items.

6. Toilet chair (1) according to claim 5, characterized by the fact thatthe retaining rings (8) are made of cardboard or plastic and the associated bags (7) are preferably firmly attached to the retaining ring (8).

7. Toilet chair (1) according to claim 5, characterized by the fact that the bag openings and the retaining rings (8) are aligned so that the bags (7) can be inserted into the retaining rings (8) and fixed between the retaining ring (8) and the seat surface (3) or a previously inserted retaining ring (8).

8. Toilet chair (1) according to one of claims 1 to 7, characterized by the fact that the two armrests (4) are designed to be foldable or swiveling.

9. Toilet chair (1) according to one of claims 1 to 8, characterized by the fact that the toilet chair further comprises at least one sensor for monitoring the use of the toilet chair, wherein the sensor in particular monitors the time and / or duration of the use of the toilet chair (1).

10. Toilet chair (1) according to claim 9, characterized by the fact thatwhich at least one sensor monitors the result of the use of the toilet chair (1), in particular the amount of excrement ingested.

11. Toilet chair (1) according to one of claims 9 to 10, characterized by the fact that which includes at least one sensor, such as a weight sensor, a camera, a smell sensor, or a motion sensor.

12. Toilet chair (1) according to claim 11, characterized by the fact that the camera is arranged on the underside of the toilet seat (10), in particular the seat of a toilet seat (10), and automatically takes a picture of the bag (7) inserted in the opening (6) of the toilet chair (1) when the toilet seat (10), in particular the seat of the toilet seat (10), is opened.

13. Toilet chair (1) according to one of claims 9 to 12, characterized by the fact thatthe toilet chair (1) further comprises an evaluation and / or diagnostic unit for processing the information from the at least one sensor, in particular with regard to the time of use of the toilet chair and / or diagnosis of the excretions released after use of the toilet chair (1).

14. Toilet chair (1) according to any one of claims 1 to 13, characterized by the fact that the toilet chair (1) includes an alarm button to send a manual alarm to at least one contact person and / or a central alarm system.

15. Method for using a toilet chair (1), in particular a toilet chair according to any one of claims 1 to 14, comprising the steps: inserting a first bag (7) into an opening (6) in a seat surface (3) of the toilet chair (1), wherein the bag opening is provided with a retaining ring (8) and the bag (6) is inserted from the seat surface side into the opening (6) of the seat surface (3) and is fixed in the opening (6) by the retaining ring (8); Inserting another bag (7) into the opening (6) in the seat (3) of the toilet chair (1) and into the bag (7) already in it, so that the further bag (7) closes the opening of the first bag (7), wherein the bag opening of the further bag (7) is provided with a retaining ring (8) and the further bag (6) is inserted from the seat side into the opening (6) of the seat (3) and into the first bag (7) and is fixed in the opening (6) by the retaining ring (8).

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