A new bedpan

By using a ring-shaped PTC heating film and a temperature control chip working together in the toilet bowl, combined with a magnetic snap-on design and a ring-shaped flushing water path, the problems of low temperature discomfort, odor diffusion, and low cleaning efficiency of traditional toilet bowls are solved, achieving rapid heating, good sealing, convenient operation, and efficient cleaning.

CN224331174UActive Publication Date: 2026-06-09FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
Filing Date
2025-06-11
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional bedpans can cause muscle tension in cold environments, spread odors, and are inefficient to clean. Furthermore, existing heating or sealing functions fail to address the issues of safe temperature control and quick disassembly for cleaning.

Method used

The device employs a ring-shaped PTC heating film and a temperature control chip to work together to rapidly raise the surface temperature of the cushioning pad to the human comfort zone. The cushioning pad can be quickly removed via a magnetic snap. Combined with a ring-shaped flushing water channel and rotating water flow design, it is equipped with a knob-type sealing cap and a quick-connect water inlet to ensure sealing performance and ease of operation.

Benefits of technology

It enables rapid heating of the bedpan surface to a comfortable temperature range for the human body, improving cleaning efficiency, reducing the workload of caregivers, minimizing odor diffusion and bacterial growth, and features safe temperature control and quick disassembly for cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a novel bedpan, comprising a basin body, a recessed toilet bowl within the basin body, and a separate top cover that fits over the basin rim. A tilting spout extends outward from the bottom sidewall of the basin body, and a knob-type sealing cap is attached to the tilting spout. A water pipe is arranged in a ring around the inner side of the basin rim, with multiple spray holes distributed on the pipe, extending to the outer side of the basin body and connecting to a water inlet. An annular mounting groove is formed on the top surface of the basin rim, and a removable cushioning pad is installed within the groove. A heating element is embedded in the bottom surface of the cushioning pad, and the heating element is connected to a temperature sensor, a battery, and a temperature control chip. This bedpan utilizes a ring-shaped PTC heating film and a temperature control chip working together to rapidly raise the surface temperature of the cushioning pad to the human comfort zone of 35-40℃, completely solving the muscle tension problem caused by low-temperature contact in traditional bedpans. The cushioning pad can be quickly removed via a magnetic snap-on mechanism for rinsing and disinfection, making it easy to operate.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a novel bedpan. Background Technology

[0002] Patients hospitalized in hospitals, such as children, postpartum women, rehabilitation and elderly patients, paraplegic patients, long-term bedridden patients and other patients who are unable to take care of themselves, as well as patients after general anesthesia surgery, are not able to get out of bed to go to the toilet and need to use bedpans to solve their urination and defecation problems while lying in bed.

[0003] Traditional bedpans have three major drawbacks in use: (1) Low temperature discomfort: Especially in cold environments, patients’ buttocks come into contact with the cold edge of the bedpan, which can easily cause muscle tension or even spasms; (2) Odor diffusion: Existing bedpans rely on simple lids for sealing, and odors still leak from the gaps; (3) Cleaning efficiency: After emptying the excrement, manual scrubbing is required, and the cushioning pad and heating element cannot be separated, resulting in bacteria growing in the dead corners of cleaning.

[0004] Although some solutions have attempted to add heating or sealing functions, such as the heated toilet bowl disclosed in patent publication number CN221180902U, which has several sets of heating mechanisms between the cushion and the rim to heat the cushion, none of them have solved the systemic defects of safe temperature control (such as overheating and burns), quick disassembly and cleaning, and active flushing. Utility Model Content

[0005] This invention provides a novel toilet that is convenient to use, highly safe, and easy to clean.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A novel toilet bowl includes a bowl body, a recessed toilet bowl within the bowl body, and a separate top cover that fits over the rim of the bowl. A pouring spout extends outward from the bottom sidewall of the rear edge of the bowl body, and a knob-type sealing cap is attached to the outside of the pouring spout. A water pipe is arranged in a ring around the inner side of the bowl rim, with multiple spray holes distributed on the water pipe, extending to the outer side of the bowl body and connecting to a water inlet. An annular mounting groove is formed on the top surface of the bowl rim, and a removable buffer pad is installed within the annular mounting groove. A heating element is embedded in the bottom surface of the buffer pad, and the heating element is connected to a temperature sensor, a battery, and a temperature control chip.

[0008] Preferably, the heating element is an annular strip-shaped PTC heating film, covering at least 80% of the area of ​​the annular mounting groove.

[0009] Preferably, the temperature sensor is embedded at the contact interface between the bottom surface of the buffer pad and the heating element; the temperature control chip and the battery are integrated on the rear side of the buffer pad; and a groove for placing the temperature control chip and the battery is provided on the rear side of the annular mounting groove on the rim of the basin.

[0010] Preferably, the inner wall of the annular mounting groove is provided with a slot, and the side wall of the buffer pad is provided with a block that cooperates with the slot. The block and the slot are fixed together by magnetic attraction.

[0011] Preferably, the bottom of the upper cover is provided with an annular rib, and a silicone pad is bonded to the bottom surface of the annular rib; an annular boss matching the annular rib is provided above the water pipes arranged in annularly on the inner side of the basin.

[0012] Preferably, the water pipe is an annular silicone tube, embedded in the annular water channel inside the rim of the basin; the spray holes are pointed towards the center of the basin at an angle of 30°-45° and are evenly distributed circumferentially.

[0013] Preferably, the water inlet has a built-in one-way valve and is connected to a quick-connect interface, which is compatible with standard water pipe fittings.

[0014] Preferably, the knob-type sealing cover has an embedded compression sealing ring.

[0015] Preferably, the basin body is provided with a handle on the front side.

[0016] The above-mentioned technical solution of this utility model has the following beneficial effects:

[0017] This novel bedpan utilizes a ring-shaped PTC heating film and a temperature control chip working in tandem to rapidly raise the surface temperature of the cushioning pad to the human comfort zone of 35-40℃, completely resolving the muscle tension caused by low-temperature contact with traditional bedpans. The cushioning pad is easily detachable via magnetic snap-fit, allowing for rinsing and disinfection; its antibacterial silicone material ensures low bacterial residue. The bedpan's ring-shaped rinsing water path, combined with 30° angled spray nozzles, creates a rotating water flow that covers 95% of the inner wall in 5 seconds, significantly improving efficiency compared to manual scrubbing. A large-diameter side-mounted emptying spout supports one-handed emptying, reducing time; the quick-connect water inlet is compatible with standard water pipes, allowing for plug-and-play use and reducing the workload for caregivers. In summary, this product, with its four core advantages—safe temperature control, perfect sealing, instant cleaning, and efficient operation—solves long-standing pain points in the industry such as discomfort from low temperatures, odor pollution, cumbersome cleaning, and heavy caregiving burden. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the novel toilet bowl of this utility model;

[0019] Figure 2 This is a schematic diagram of the basin structure of an embodiment of the novel toilet bowl of this utility model.

[0020] Figure 3 This utility model Figure 2 A magnified view of part A;

[0021] Figure 4 This is a schematic diagram of the inner side structure of the top cover of this utility model. Detailed Implementation

[0022] The embodiments of the novel toilet bowl of this utility model will be described in detail below with reference to the accompanying drawings and examples.

[0023] Please see Figure 1-2 As shown, the present invention discloses a novel toilet bowl, including a bowl body 1, a toilet bowl groove 103 opened in the bowl body 1, and an independent upper cover 4 covering the rim of the bowl 101.

[0024] The core structure of this novel toilet includes a basin body 1, inside which a large-volume toilet bowl recess 103 is formed, creating a space to hold excrement. A 50-100mm diameter pouring spout 5 is provided along the bottom side wall of the basin body 1. This pouring spout 5 is externally connected to a knob-type sealing cap 501. The sealing cap 501 has an embedded compression sealing ring to achieve a leak-proof seal, and when tightened, it can withstand a pressure of 0.1MPa without leakage.

[0025] Figure 1 As shown, an 8mm deep annular mounting groove is formed on the top surface of the basin rim 101, and a removable buffer pad 2 is installed in the groove. The buffer pad 2 is made of medical-grade antibacterial silicone (8mm thick, Shore A hardness 40A), and an annular strip-shaped PTC heating film 202 (outer diameter 350mm, inner diameter 250mm) is embedded in its bottom surface. The heating film 202 covers 80-85% of the mounting groove area to achieve efficient heat conduction. A temperature sensor 203 is directly embedded at the contact interface between the bottom surface of the buffer pad 2 and the heating film 202, monitoring temperature changes in real time (accuracy ±0.3℃). A temperature control chip and a battery (12V / 2000mAh) are integrated on the rear side of the buffer pad 2, both encased in a plastic shell 201, which also has a heating switch. A groove for accommodating electronic components is provided on the rear side of the annular mounting groove of the basin rim 101. In practical applications, when a patient contacts the buffer pad 2, the system heats up to 38℃±1℃ within 45 seconds, with the temperature difference controlled within the human comfort zone.

[0026] It should be noted that, to prevent moisture from seeping into the electrical connection surfaces and back of the heating element 202 during cleaning of the buffer pad 2 (especially the silicone part), which could lead to short circuits or damage, reliable waterproofing and insulation treatment is required for the non-working surfaces of the heating element 202 (i.e., the back and sides, and the parts outside the contact surface with the silicone substrate of the buffer pad 2). This is a common practice for integrating electronic components into washable parts. Before embedding the heating element 202 into the silicone substrate of the buffer pad 2, a selected insulating encapsulation layer should be applied to its non-working surfaces. Ensure complete coverage of all metal conductor parts, especially electrode solder joints and wire connections, and ensure proper edge sealing. The insulating encapsulation layer can be made of polyimide tape, thermally conductive insulating silicone, or epoxy resin potting compound.

[0027] During the manufacturing of the cushioning pad 2, the heating element 202 (with a pre-insulated back cover) is completely encapsulated in medical-grade antibacterial silicone material. A thinner contact layer of silicone is formed on the front (working surface) of the heating element 202 for heat conduction, while a thicker silicone layer (combined with the encapsulation layer from the above steps) is formed on the back and edges, together forming a second line of waterproof protection.

[0028] Furthermore, the wires connecting the heating element 202 and the temperature sensor 203 extend from the plastic housing 201 and connect to the components inside the buffer pad 2; this wire hole is a potential point of water ingress. A silicone sealing ring or sealant can be used to ensure a seal at the point where the wires exit the plastic housing 201.

[0029] The buffer pad 2 has a locking block 208a with a neodymium iron boron magnet on its side wall, and a corresponding locking groove 208b with magnetically conductive stainless steel is provided on the inner wall of the annular mounting groove. By grasping the plastic housing 201, which integrates the temperature control chip and battery, on the rear side of the buffer pad 2 and lifting it upwards, quick disassembly and cleaning can be achieved in just one second, significantly improving efficiency compared to traditional bolt fixing. After disassembly, the plastic housing can be rinsed vertically from below, making operation convenient.

[0030] Figure 3 As shown, a water pipe 6, composed of an annular silicone tube, is embedded inside the basin rim 101. The water pipe 6 is buried in an annular water channel 603 with a depth of 8 mm. Multiple spray holes 601 are evenly distributed along the circumference of the water pipe 6 at 12 mm intervals, with the spray holes 601 pointing towards the center of the basin at a 40° angle. The water inlet 602 is located on the outer front wall of the basin 1 and is connected to a quick-connect interface 605, which is compatible with standard water pipe fittings. When a water pipe is connected to the water inlet 602, a rotating water flow is formed under a water pressure of 0.1 MPa, covering the inner wall of the groove. This saves water compared to manual rinsing and avoids water splashing during manual rinsing. The water inlet 602 has a built-in silicone duckbill-type one-way valve to effectively prevent sewage backflow.

[0031] Figure 4 As shown, a 3mm high annular rib 404 extends from the bottom of the top cover 4. A 2mm thick silicone pad 406 is bonded to the bottom surface of the rib 404. An annular boss 405 with a height of 3.5mm is provided above the water pipe 6 arranged in a ring on the inner side of the basin rim 101. When closed, the rib 404 is engaged with the annular boss 405, and the silicone pad forms a certain seal.

[0032] The basin body 1 is provided with a handle 8 on the front side for carrying it to empty excrement and rinse with water. In addition, the top of the cover 4 is provided with an upper handle 400.

[0033] When using, place the bedpan under the patient's buttocks in a suitable position (usually with the assistance of a caregiver). Turn on the heating switch on the back of the cushion pad 2; the temperature control system will start, the PTC heating film 202 will begin working, and the temperature sensor 203 will monitor in real time. The system will automatically and rapidly raise the surface temperature of the cushion pad 2 to and stabilize it within the preset comfortable human temperature range (e.g., 35-40℃, usually 38℃±1℃ by default). The patient sits on the warm cushion pad 2 to defecate / urinate; excrement falls into the urinal recess 103. When emptying, simultaneously open the sealing cover 501 by holding the handle 8 to empty the bedpan.

[0034] If temporary storage or odor diffusion is required, the separate top cover 4 can be placed on the basin rim 101. The annular rib 404 and silicone pad 406 at the bottom of the top cover 4 are pressed tightly against the annular boss 405 on the basin rim 101 to form a preliminary seal.

[0035] Disassembling the cushion: Caregivers or patients should grasp the plastic housing 201 on the back of the cushion 2 and lift it upwards. Note that the magnetic attraction between the locking block 208a and the slot 208b is relatively weak; a little force is sufficient to quickly remove the entire cushion 2 assembly (including the heating element 202, sensor 203, temperature control chip, and battery). Cleaning the cushion assembly: The removed cushion 2 assembly, specifically the main body (silicone part), can be directly rinsed with water or even cleaned with a mild disinfectant without worrying about water damage to electronic components. The outer side of the plastic housing 201 covering the electronic components (temperature control chip, battery) can be wiped clean with a damp cloth. After cleaning and drying, align the cushion 2 assembly with the annular mounting groove on the basin rim 101 and gently press down. This will cause the locking block 208a on the side wall of the cushion 2 to automatically engage and secure with the slot 208b on the inner wall of the mounting groove via magnetic attraction.

[0036] Flushing the toilet bowl body: Unscrew the knob-type sealing cap 501, tilt the toilet bowl using the handle 8, and pour the wastewater from the large-diameter pouring spout 5 into the toilet or waste tank. Connect an external water source (such as a water pipe) to the water inlet 602 via the quick-connect interface 605. The one-way valve inside the water inlet 602 prevents wastewater backflow. Turn on the water source (water pressure approximately 0.1 MPa). Water flows through the water pipe 6 and sprays out from multiple nozzles 601 angled at 30°-45° towards the center of the bowl, forming a rotating water flow that efficiently flushes the inner wall of the toilet bowl recess 103. Flushing for approximately 5-10 seconds is sufficient to cover most of the inner wall. After flushing, turn off the water source and disconnect the quick-connect interface 605.

[0037] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A novel chamber pot, comprising a pot body (1) and a urinal recess (103) formed within the pot body (1), characterized in that, It also includes an independent top cover (4) that covers the rim (101); the basin (1) has a pouring spout (5) extending outward along the bottom side wall, and the pouring spout (5) is connected to a knob-type sealing cap (501); a water pipe (6) is arranged in a ring on the inner side of the rim (101), and multiple spray holes (601) are distributed on the water pipe (6), and the water pipe (6) extends to the outside of the basin (1) to connect to the water inlet (602); an annular mounting groove is provided on the top surface of the rim (101), and a removable buffer pad (2) is installed in the annular mounting groove. A heating element (202) is embedded on the bottom surface of the buffer pad (2), and the heating element (202) is connected to a temperature sensor (203), a battery and a temperature control chip.

2. The novel chamber pot as described in claim 1, characterized in that, The heating element (202) is an annular strip-shaped PTC heating film that covers at least 80% of the area of ​​the annular mounting groove.

3. The novel chamber pot as described in claim 1, characterized in that, The temperature sensor (203) is embedded at the contact interface between the bottom surface of the buffer pad (2) and the heating element (202); the temperature control chip and the battery are integrated on the rear side of the buffer pad (2); The annular mounting groove on the rim (101) of the basin is provided with a groove for placing the temperature control chip and the storage battery.

4. The novel chamber pot as described in claim 1, characterized in that, The inner wall of the annular mounting groove is provided with a slot (208b), and the side wall of the buffer pad (2) is provided with a block (208a) that cooperates with the slot (208b). The block (208a) and the slot (208b) are fixed together by magnetic attraction.

5. The novel chamber pot as described in claim 1, characterized in that, The bottom of the upper cover (4) is provided with an annular rib (404), and a silicone pad (406) is bonded to the bottom surface of the annular rib (404); an annular boss (405) matching the annular rib (404) is provided above the water pipe (6) arranged in annularly on the inner side of the basin rim (101).

6. The novel chamber pot as described in claim 1, characterized in that, The water pipe (6) is an annular silicone tube, which is embedded in the annular water channel (603) inside the basin rim (101); the spray holes (601) are pointed at the center of the basin at an angle of 30°-45° and are evenly distributed along the circumference.

7. The novel chamber pot as described in claim 1, characterized in that, The water inlet (602) has a built-in one-way valve and is connected to a quick-connect interface (605), which is compatible with standard water pipe fittings.

8. The novel chamber pot as described in claim 1, characterized in that, The knob-type sealing cover (501) has an embedded compression sealing ring.

9. The novel chamber pot as described in claim 1, characterized in that, The basin (1) is provided with a handle (8) on the front side.