Toilet chair that allows repeated, clean, waterless and odorless use

Abstract

Toilet chair (1) which allows repeated, clean, waterless and odorless use, wherein the toilet chair (1) comprises several standing 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), characterized in that several bags (7) are provided for collecting urine and / or faeces, wherein the respective bag openings are provided with retaining rings (8) which are inserted from the seat side into the opening (6) of the seat (3) and are fixed in the opening (6) by the retaining ring (8), wherein the retaining rings (8) are designed to be stackable, so that several retaining rings (8) with bags (7) arranged thereon can be inserted one after the other 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 one another, whereby the contents of the used bag (7) are covered by the new bag (7) in order to ensure repeated, clean, waterless and odorless use of the toilet chair (1).

Description

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

[0002] Commode chairs are available in a wide variety of designs and are available today. Commode chairs in homes and / or care settings are regularly used by individuals with severely limited mobility. Commode chairs are also used by individuals suffering from incontinence, particularly exertion-induced incontinence. Commode chairs are typically placed in bedrooms or living rooms so that users can reach and use the chair quickly and easily. This is particularly advantageous at night, as they eliminate the need to go to the bathroom every time they need to use the toilet. To ensure that these chairs are accepted and used by the mostly elderly, they should differ as little as possible from normal stools, be clean at all times, and absorb urine and stools safely and odor-free.The toilet chair should also be easy to clean and the excretions must be easy to dispose of.

[0003] The terms odorless and odor-free are used synonymously in this disclosure.

[0004] The portable toilets commonly found in camping, for example, are unsuitable for this purpose, as they look significantly different from a normal chair and would therefore be rejected by many older users. Furthermore, such camping toilets are usually small and unsuitable for use by people with limited mobility, as getting up from a low camping toilet is almost impossible for the intended users. Furthermore, the use and maintenance of camping toilets is complex, as they are usually filled with a chemical fluid that must be changed regularly.

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

[0006] US 6,523,187 B1 discloses a toilet chair, in particular for teaching small children how to use the toilet. The toilet chair has an opening in the seat, and in the opening are arranged several nested collection bags for excretions. The individual bags are attached together to a retaining ring and can be detached from the retaining ring using existing perforations. Furthermore, the individual bags can contain absorbents for the excretions. A disadvantage of this toilet chair, however, is that the used bag must be removed from the opening of the toilet chair after use so that the toilet chair can be used again. The removed bag must be disposed of after removal, which is not easy for people with limited mobility, especially if the toilet chair is used at night.Furthermore, the edges of the bag can become dirty during use of the toilet chair due to the user's excretions, which can make the subsequent removal of the used bag unpleasant for the user.

[0007] US Pat. No. 6,779,204 B1 discloses a conventional commode chair in which the excreta are collected in a container. However, the excreta remains in the container until it is emptied, making repeated use unpleasant for many people. Furthermore, many people will not want to have the chair standing in the room, as it is immediately recognizable as a commode chair.

[0008] CN 110613562 B discloses a wheelchair with a toilet function. This state-of-the-art technology also collects excreta in a container and remains there until the container is emptied.

[0009] Based on this prior art, the object of the invention is to provide a commode chair that is particularly suitable for use in the home and care sector. The commode chair must be easy to use in everyday life, in particular, it must allow for repeated, clean, waterless, and odorless use. To achieve this, the excreta must be collected safely and odorlessly and subsequently disposed of as easily as possible.

[0010] The object is achieved according to the invention by a toilet chair which enables repeated, clean, waterless and odorless use, wherein the toilet chair comprises several standing elements, a seat, two side armrests and a backrest, wherein an opening is provided in the seat for bladder and / or bowel emptying, which is characterized by the fact that several bags are provided for collecting urine and / or faeces, whereby the respective bag openings are provided 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 designed to be stackable, so that several retaining rings with bags arranged thereon can be inserted one after the other into the opening of the seat, and wherein after each use of the commode, a new bag is inserted into the used bag already present in the opening of the commode 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 repeated, clean, waterless and odorless use of the commode.

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

[0012] The user sits on the commode chair like a normal toilet, which makes it particularly easy to use. The excreta are collected in the bag, which is secured in the opening in the seat by means of the retaining ring. After using the toilet, the user inserts a new bag with the retaining ring into the opening in the seat, so that the new bag is inserted into the existing bag. The retaining ring of the new bag rests on the retaining ring of the existing bag and is thereby secured in the opening in the seat. The excreta in the existing bag is covered by the newly inserted bag, and by stacking the retaining rings of the two bags on top of each other, the bag containing the excreta is sealed. The excreta in the older bag is thus isolated from the environment, effectively preventing unpleasant odors in the area around the commode chair.

[0013] After inserting the new bag, the commode is ready for the next use. Since the new bag is only inserted into the used bag after the commode has been used, the cleanliness of the commode 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 so, the bags and their retaining rings are removed from the opening in the seat and disposed of properly. A new retaining ring with the bag is inserted into the opening in the seat, and the commode is ready for use again. The bags are conveniently designed as disposable items and are disposed of accordingly after use. Time-consuming cleaning of toilet bowls or similar containers is not required.

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

[0016] The commode chair can, for example, be placed near a user's bed, so that the user doesn't 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-fledged replacement for a regular toilet, provided they can use the commode chair next to the bed with assistance if necessary. This avoids the use of bedpans or similar devices, which bedridden people often find unpleasant for psychological reasons.

[0017] In a variant according to 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, during use, rests on the seat of the toilet chair or the flat circular element of a bag with a retaining ring that is already inserted into the opening of the seat. The flat circular elements of the retaining rings are identically designed. In a further variant, a cylindrical, conical element can be arranged on the respective flat circular elements of the plurality of bags, which protrude into the opening in the seat during use. The conical elements of the retaining rings allow several retaining rings to be easily stacked inside each other. The circular, flat element and, if applicable,The cylindrical, conical element ensures that the opening of a used bag is particularly well closed by a newly inserted (unused) bag.

[0018] According to a particularly advantageous variant of the invention, the bags contain a liquid-absorbing agent. The liquid-absorbing agent solidifies the liquid components of the excretions, particularly urine, so that only solid components remain in the bag. This particularly simplifies the replacement and disposal of used bags, as bags filled with a solid material are significantly easier to handle than bags filled with liquid. Furthermore, the bags may usually only be disposed of with normal household waste if they do not contain any liquids. The liquid-absorbing agent can be, for example, granules and / or gel. A frequently 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 has highly hygroscopic properties.Preferably, the bags are already provided with a liquid-absorbing agent inside. However, it is also conceivable for the user to fill the liquid-absorbing agent themselves. The amount of liquid-absorbing agent is calculated such that the amount of liquid typically excreted during a toilet visit can be safely absorbed.

[0019] According to a variant of the invention, the commode includes a toilet seat, which is arranged above the opening in the seat. A toilet seat is a ring-shaped, usually foldable seat for a toilet. The toilet seat may also include a hinged lid. Such toilet seats are also colloquially referred to as WC seats or toilet seats. The opening of the ring-shaped toilet seat aligns with the opening in the seat of the commode.

[0020] In one variant according to the invention, the commode chair comprises an odor extractor, preferably with a fan and a filter device. The odor extractor serves in particular to extract and preferably eliminate odors during 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 extractor comprises, for example, a fan for sucking in air from the immediate vicinity of the commode chair, particularly in the area of ​​the seat opening. The sucked-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 means. The odor extractor is battery-operated and / or has a power cable for connection to a household power supply.

[0021] According to a practical variant of the invention, the commode comprises a switch or motion detector for activating the odor extractor when the commode is used. The switch is coupled, for example, to the optional toilet seat, in particular to a hinged lid of the toilet seat, so that opening the lid of the toilet seat automatically activates the odor extractor. The motion detector is expediently positioned on the commode so that it automatically activates the odor extractor when the commode is used for a toilet visit. After using the toilet, e.g., when the lid is closed, the odor extractor is deactivated again; a specific run-on time can also be provided.

[0022] According to an advantageous variant of the invention, the toilet chair comprises a separate seat cushion for the seat, which covers the opening. This allows the toilet 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 or the toilet seat at the opening is exposed for use. In particular, the seat cushion can cover the optional motion detector for activating the odor extractor, so that the motion detector only activates the odor extractor when the seat cushion is removed. Preferably, the seat cushion has a firm, stable underside to cover the opening in the seat. This is particularly advantageous if the opening does not include a toilet seat with a cover.

[0023] In an advantageous variant of the invention, the commode chair includes a cover in the lower area so that one or more bags inserted into the opening are not visible. This makes the commode chair according to the invention almost indistinguishable from a conventional chair, which will significantly improve its acceptance. The chair can thus be seamlessly integrated into a living room or bedroom. The cover is expediently 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 a variant of the invention, the bags are detachably connected to the associated retaining rings. This allows, for example, the used bags to be removed from the retaining rings and disposed of, while the retaining rings can be fitted with new bags. The bags are thus disposed of as disposable items along with the excreta, while the retaining rings can be reused. Alternatively, the retaining rings are also designed as disposable items, so they can be disposed of together with the bags.

[0025] In an advantageous variant of the invention, the retaining rings are made of cardboard or plastic, and the associated bags are preferably firmly connected to the retaining ring. The retaining ring and bag are thus disposed of together. This firm connection also ensures that the bag does not detach from the retaining ring, and the bags do not need to be connected 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.

[0026] According to a practical variant of the invention, the bag openings and the retaining rings are coordinated so that the bags can be inserted into the retaining rings and secured between the retaining ring and the seat 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 or the previously inserted retaining ring. This creates a secure, detachable connection between the bag and the retaining ring, which simultaneously provides a particularly good odor trap for the excretions in the used bag. In this variant, the retaining rings can be reused, which is particularly environmentally friendly because only the used bags and the excretions are disposed of, which in this variant can be easily detached from the associated retaining ring.

[0027] The bags for the toilet seat according to the invention are comparable to commercially available garbage bags, but may have a thicker wall thickness. The bags can also be provided with a drawstring similar to that found in commercially available garbage bags, which can be useful for connecting the retaining ring to the bag and can later seal the bag for disposal.

[0028] According to a variant 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, for example, so that they do not hinder 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 a further variant of the invention, the commode chair comprises casters, in particular lockable casters or casters that lock automatically when a load is applied. The casters enable easy movement of the commode chair. The locked casters ensure that the commode chair does not move during use, in particular when sitting down or standing up. The lockable casters must be operated, i.e. locked, by the user. The self-acting casters lock automatically when a load is applied, in particular a vertical load. However, during horizontal movement, i.e. when the commode chair rolls across a substantially horizontal floor, the self-acting casters do not lock.

[0030] According to a particularly advantageous variant of the invention, the toilet chair comprises at least one sensor for monitoring the use of the toilet chair. Monitoring fluid balance is particularly advantageous for older people, as older people tend to drink less than necessary for health reasons. Monitoring fluid balance is also useful in nursing care. In addition to recording the amount of fluid consumed, the amount of fluid excreted must also be determined when monitoring fluid balance. One indicator of the amount of fluid excreted is the frequency of toilet use. For this purpose, the toilet chair according to the invention is preferably equipped with a sensor for monitoring the use of the toilet chair.

[0031] According to a variant of the invention, the at least one sensor monitors the time and / or duration of use of the toilet chair. This can be used to determine, for example, the likely amount of fluid dispensed.

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

[0033] According to a variant 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 an expedient variant of the invention, the camera is arranged on the underside of the toilet seat, in particular the lid of the toilet seat, and automatically takes a picture of the bag inserted into the opening of the commode when the toilet seat, in particular the lid of the toilet seat, is opened. Since the toilet seat is folded onto the seat during use of the commode so that the opening of the toilet seat coincides with the opening in the seat of the commode, the camera attached to the underside of the toilet seat is covered by the seat of the commode, thereby preventing the camera from taking pictures during use of the commode. After use of the commode, a new bag is inserted into the opening of the seat, 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 waste it contains. This camera image can then be evaluated, for example, regarding the type and / or quantity of waste. Further details regarding the waste can also be recorded, such as consistency, color, or similar properties.

[0035] In a particularly advantageous variant of the invention, the toilet chair further comprises an evaluation and / or diagnostic unit for processing the information from the at least one sensor, in particular regarding the temporal use of the toilet chair and / or diagnosing the excretions released after use of the toilet chair. The evaluation and / or diagnostic unit can provide long-term information, in particular regarding the temporal use of the toilet chair, and / or information regarding current use, such as the amount of excretions, consistency of the excretions, color of the excretions, and so on.

[0036] Furthermore, the bag can contain certain diagnostic substances that react with specific components in the excreta. For example, a diagnostic substance could change color, with the change in color being recorded by a camera. This allows for immediate detection, for example, of the presence of certain components in the excreta. One example of this is the detection of blood in the excreta.

[0037] According to an expedient variant of the invention, the evaluation and / or diagnostic unit further comprises communication means for transmitting information or alarms to a central monitoring center, particularly in the event of unusual usage behavior or a lack of use. For example, if the commode chair is not used for a predetermined period of time or if the commode chair is used continuously, direct contact can be made with the user of the commode chair. If this is unsuccessful, a personal on-site inspection can be arranged. Collected information regarding the evaluation of the excretions could also be promptly transmitted to a central monitoring center, and a medical examination could be conducted if necessary.

[0038] According to a suitable variant 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 variant of the invention, the commode includes an alarm button for manually sending an alarm to at least one contact person and / or a central alarm system. This allows a commode user to quickly and easily call for help in an emergency.

[0040] According to a further variant, the toilet chair can comprise a voice input and / or voice output unit, in particular for giving instructions to the user or receiving 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 is explained in more detail below with reference to exemplary embodiments illustrated in the accompanying figures. They 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 Fig. 1, Fig. Figure 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 an odor extractor of the toilet chair from Fig. 1, and Fig. 5 a perspective view of the toilet chair from Fig. 1 with a seat cushion on the seat.

[0042] Fig. Figure 1 shows a perspective view of a toilet chair 1 according to the invention, which allows for repeated, clean, waterless, and odorless use. The toilet chair 1 comprises several base elements 2, more precisely four chair legs.

[0043] Furthermore, the toilet chair 1 comprises a seat 3, two armrests 4 and a backrest 5.

[0044] An opening 6 for bladder and / or bowel emptying is provided in the seat 3. According to the present invention, the toilet chair 1 comprises several bags 7 for collecting urine and / or feces, wherein Fig. 1 only one bag 7 is shown. The bag openings each have a retaining ring 8, wherein a bag 6 is inserted from the seat side into the opening 6 of the seat 3 and is fixed in the opening 6 of the seat 3 by the retaining ring 8.

[0045] According to the present invention, the retaining rings 8 are designed to be stackable, so that several retaining rings 8 with bags 7 arranged thereon can be inserted one after the other 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 one another or inside one another.

[0046] Again Fig. As can be seen from Figure 1, the toilet chair 1 comprises a toilet seat 10, which is arranged above the opening 6 of the seat 3. The toilet seat 10 is preferably a commercially available toilet seat, which is usually mounted on known toilet bowls. The toilet seat 10 is expediently designed to be foldable, meaning it can be folded down onto the opening 6 of the seat or folded up towards the backrest 5. According to the Fig. In the embodiment shown in Figure 1, the toilet seat 10 does not include a cover. However, it is also possible for the toilet chair 1 according to the invention to include a toilet seat 10 with a toilet seat and cover. Fig. 1, the toilet seat 10 is folded down, i.e. positioned above the edge of the opening 6 of the seat 3. In Fig. 2, the toilet seat 10 is folded up and the opening 6 in the seat 3 with the bag 7 arranged therein with retaining ring 8 is exposed.

[0047] Fig. Figure 3 shows a detailed view of a bag 7 with a retaining ring 8. The bag 7 is expediently detachably connected to the retaining ring 8. Specifically, 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 outward around the retaining ring 8, so that the bag opening preferably wraps around the entire retaining ring 8. Alternatively, the bag 7 is firmly connected to the retaining ring 8, and both are disposed of together after use.

[0048] Fig. Figure 6a shows in detail how the retaining rings 8 with the bags 7 attached to them can be stacked inside each other. The upper section of the retaining rings is flat, allowing them to be stacked one on top of the other to save space. The part of the retaining rings 8 that faces downwards in the use position is conical, allowing these sections 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 shows a side view of two retaining rings 8 during stacking. In particular, Fig. 6c the conical lower part of the retaining ring 8 can be seen. Fig. 6d shows in detail how the bag 7 is wrapped around the retaining ring 8. The bag openings and the retaining rings 8 are thus coordinated with one another, so that the bag 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 a variant of the invention, the bag 7 can also be elastically designed 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 can be inserted into the bag opening, whereby the bag is fixed in the retaining ring 8 by the elastic forces.

[0049] For example, the Fig. 3, the bags 7 each contain a liquid-absorbing agent 9 in order to absorb and bind the liquid components of the excretions through bladder and / or bowel emptying.

[0050] According to an expedient variant of the invention, the toilet chair 1 comprises an odor extractor 11. The odor extractor 11 is shown in detail, for example, in the Fig. 4. The odor extractor 11 comprises, for example, a fan and a filter device. The ventilation system draws in air from the area surrounding the opening 6 of the seat surface 3 and removes odors via the filter device, such as an activated carbon filter.

[0051] In an advantageous variant of the invention, the toilet chair 1 comprises a switch or motion detector 12 for activating the odor extractor 11 when using the toilet chair 1. According to the embodiment of 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 power plug.

[0052] As in Fig. 5, 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. The seat cushion 13 is expediently designed to be rigid 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 the like. In particular, the seat cushion 13 can at least partially cover the motion detector 12 (not shown). Fig. 5), 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 extractor 11 from being activated when someone sits on the seat cushion 13, i.e., does not use the toilet chair 1 to empty the bladder and / or bowels.

[0053] Again Fig. 5 can still be removed, the toilet chair 1 according to the invention comprises, for example, covers 14 between the chair legs to conceal the bags 7 inserted in the opening 6 of the seat 3. With the seat cushion 13 and covers 14, the toilet chair 1 according to the invention can hardly be distinguished from a conventional chair. The toilet chair can thus be integrated into a bedroom or living room without being particularly conspicuous. List of reference symbols 1 toilet chair 2 stand elements 3 Seat 4 armrest 5 Backrest 6 Opening (seat) 7 bags 8 Retaining ring 9 liquid absorbing agent 10 toilet seat 11 Odor extractor 12 motion detectors 13 seat cushions 14 Cover QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 202 06 063 U1

[0005] DE 297 03 161 U1

[0005] US 6,523,187 B1

[0006] US 6,779,204 B1

[0007] CN 110613562 B

[0008]

Claims

[1] Toilet chair (1) which allows repeated, clean, waterless and odourless use, the toilet chair (1) comprising several standing 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), characterized by , that several bags (7) are provided for collecting urine and / or faeces, wherein the respective bag openings are provided with retaining rings (8) which are inserted from the seat side into the opening (6) of the seat (3) and are fixed in the opening (6) by the retaining ring (8), wherein the retaining rings (8) are designed to be stackable, so that several retaining rings (8) with bags (7) arranged thereon can be inserted one after the other 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 one another, whereby the contents of the used bag (7) are covered by the new bag (7) in order to ensure repeated, clean, waterless and odorless use of the toilet chair (1). [2] Toilet chair (1) according to claim 1, characterized by that the 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 that the bags (7) contain a liquid-absorbing agent (9). [4] Toilet chair (1) according to one of claims 1 to 3, characterized bythat the toilet chair (1) comprises an odor extractor (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 extractor (11) when the toilet chair (1) is used. [5] Toilet chair (1) according to one of claims 1 to 4, characterized by that the bags (7) are detachably connected to the associated retaining rings (8) or the retaining rings are designed as disposable articles. [6] Toilet chair (1) according to claim 5, characterized by that the retaining rings (8) are made of cardboard or plastic and the associated bags (7) are preferably firmly connected to the retaining ring (8). [7] Toilet chair (1) according to claim 5, characterized bythat the bag openings and the retaining rings (8) are matched to one another in such a way that the bags (7) can be inserted into the retaining rings (8) and are 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 that the two armrests (4) are designed to be foldable or pivotable. [9] Toilet chair (1) according to one of claims 1 to 8, characterized by that the toilet chair further comprises at least one sensor for monitoring the use of the toilet chair, wherein the sensor monitors in particular the time and / or duration of use of the toilet chair (1). [10] Toilet chair (1) according to claim 9, characterized by that the at least one sensor monitors the result of the use of the toilet chair (1), in particular the amount of excretions absorbed. [11] Toilet chair (1) according to one of claims 9 to 10, characterized by that the at least one sensor is a weight sensor, a camera, an odor sensor or a motion sensor. [12] Toilet chair (1) according to claim 11, characterized by 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 that the 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 temporal 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 one of claims 1 to 13, characterized by that the toilet chair (1) comprises an alarm button for sending a manual alarm to at least one contact person and / or a central alarm station.

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