A pressure sore prevention bedpan device for ICU patients

By designing an anti-pressure ulcer bedpan device for ICU patients, and utilizing elastic components and bidirectional drive components to disperse pressure, the risk of pressure ulcers caused by traditional bedpans for ICU patients is solved, and the prevention of pressure ulcers and the convenience of excrement cleaning are achieved.

CN224523496UActive Publication Date: 2026-07-21THE SECOND AFFILIATED HOSPITAL TO NANCHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE SECOND AFFILIATED HOSPITAL TO NANCHANG UNIV
Filing Date
2025-08-15
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

ICU patients are at high risk of pressure ulcers due to prolonged bed rest, limited mobility, and poor nutritional status. Traditional hard bedpans cause pressure concentration at bony prominences, friction/shear force damages the skin, and excrement seepage causes skin maceration, weakening the barrier function.

Method used

Design an anti-pressure ulcer bedpan device for ICU patients, comprising a support, a receiving slot, a bidirectional drive assembly, and a seat cushion assembly. The device utilizes elastic components to conform to the buttocks, and the bidirectional drive assembly allows for fine adjustment of the support platform's tilt to distribute pressure. The bedpan structure is also detachable to prevent the fecal bag from falling off.

Benefits of technology

It effectively disperses pressure on the sacrum, coccyx, and ischial tuberosity, reducing the concentration of pressure on one side of the buttocks when bedridden patients use the toilet, preventing pressure sores, maintaining patient comfort and balance, and preventing skin maceration caused by incomplete cleaning of excrement.

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Abstract

The utility model provides a kind of anti-pressure sore bedpan device for ICU patient, including support, the accommodating groove recessed in the support, and be equipped in the accommodating groove two-way drive assembly and cushioning component, the cushioning component includes the support platform connected with the two-way drive assembly, the bedpan placement slot recessed in the support platform, and detachably equipped in the bedpan placement slot bedpan, the bedpan includes rigid body part, and be equipped on the rigid body part elastic part, the bionic curved surface for adhering human body hip is formed on the elastic part.The anti-pressure sore bedpan device for ICU patient in the utility model, the pressure of sacrococcygeal part and ischial tuberosity is dispersed by the elastic part on bedpan, and the unilateral pressure concentration of hip when long-term bedridden patient is in toilet is reduced by two-way drive assembly, to avoid pressure sore.
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Description

Technical Field

[0001] This utility model relates to the field of patient equipment technology, and in particular to an anti-pressure ulcer bedpan device for ICU patients. Background Technology

[0002] Hemorrhoids are a common vascular disease of the anal canal and rectum, mainly caused by the downward displacement of anal cushions or the dilation of venous plexus due to congestion. Typical symptoms include rectal bleeding, prolapse of anal masses, pain, and itching, which seriously affect the patient's quality of life.

[0003] In the current technology, for critically ill ICU patients suffering from hemorrhoids, the long-term bed rest, limited mobility, poor nutritional status, impaired perception, and fragile skin make the risk of pressure ulcers extremely high. They need to use bedpans frequently, and traditional rigid plastic bedpans have the following defects: the rigid material causes pressure concentration at bony prominences, and friction / shear force damages the skin; excrement seeps into the seams or the interior of the material, causing skin maceration and weakening the barrier function. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a slope protection structure to deal with the hazards of debris flow, and to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] An anti-pressure ulcer bedpan device for ICU patients includes a support, a recessed receiving groove on the support, a bidirectional drive assembly and a seat cushion assembly disposed in the receiving groove. The seat cushion assembly includes a support platform connected to the bidirectional drive assembly, a bedpan placement groove recessed in the support platform, and a bedpan detachably disposed in the bedpan placement groove. The bedpan includes a rigid body part and an elastic part disposed on the rigid body part. The elastic part has a biomimetic curved surface for conforming to the human buttocks.

[0007] According to one aspect of the above technical solution, the bidirectional drive assembly includes two transverse drive structures and two longitudinal drive structures disposed in the receiving groove, wherein the two transverse drive structures are disposed opposite each other in the transverse direction and the two longitudinal drive structures are disposed opposite each other in the longitudinal direction.

[0008] According to one aspect of the above technical solution, the transverse drive structure includes a first motor disposed in the placement slot, a first worm gear connected to the first motor, a first worm wheel rotatably connected to the wall of the placement slot via a first bearing, two first guide rods disposed in the wall of the placement slot, a first support column slidably connected to the two first guide rods, and a first universal ball disposed on the first support column. The first worm wheel and the first worm gear mesh, the first support column is located in the first worm wheel and threadedly connected to the first worm wheel, and a first universal bearing that cooperates with the first universal ball is provided below the support platform.

[0009] According to one aspect of the above technical solution, the longitudinal drive structure includes a second motor disposed in the placement slot, a second worm gear connected to the second motor, a second worm wheel rotatably connected to the wall of the placement slot via a second bearing, two second guide rods disposed in the wall of the placement slot, a second support column slidably connected to the two second guide rods, and a second universal ball disposed on the second support column. The second worm wheel and the second worm gear mesh, the second support column is located in the second worm wheel and threadedly connected to the second worm wheel, and a second universal bearing that cooperates with the second universal ball is provided below the support platform.

[0010] According to one aspect of the above technical solution, the placement groove is provided with an annular support seat, the lower end of the support platform is provided with a clearance groove for avoiding the annular support seat, and a first annular support pad is provided between the support platform and the annular support seat, the first annular support pad being made of elastic material.

[0011] According to one aspect of the above technical solution, a second annular support pad is provided between the support platform and the support, and the second annular support pad is made of elastic material.

[0012] According to one aspect of the above technical solution, the edge of the support platform is provided with multiple spring pieces, which abut against the support platform in the reset state.

[0013] According to one aspect of the above technical solution, a clearance hole is provided on one side of the support platform.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By incorporating a receiving groove within the support, and housing a bidirectional drive assembly and a seat cushion assembly within that groove, when a frail ICU patient needs to use the toilet, caregivers can assist the patient to sit on the bedpan. The patient can then use the bedpan directly or have a fecal bag placed over it. The biomimetic curved surface on the elastic section better adapts to the shape of the buttocks, and this elastic section, made of medical-grade silicone, helps to distribute pressure on the sacrum, coccyx, and ischial tuberosities. For bedridden patients, prolonged fixed posture can lead to muscle atrophy on one side, resulting in uneven hip development. The bidirectional drive assembly allows for a 10° adjustment of the support platform's tilt. The minor adjustments allow for raising the support platform on the side with the smaller buttock flap and lowering the other side to maintain body balance, reduce unilateral pressure concentration, and prevent pressure sores. The platform's tilt can also be adjusted forward and backward according to individual comfort, preventing patients from straining excessively to maintain comfort and balance. Caregivers can adjust the platform based on the patient's sensations. Additionally, a fecal bag can be placed on the support platform to prevent it from falling off, or a bedpan can be used directly. After use, the bedpan can be removed from the support platform for easy cleaning, as well as cleaning the placement tray, preventing incomplete removal of excrement and subsequent skin maceration.

[0016] This invention uses an elastic part on the bedpan to distribute pressure on the sacrum, coccyx, and ischial tuberosity, and uses a bidirectional drive component to reduce unilateral pressure concentration on the buttocks when bedridden patients use the toilet, thus preventing pressure sores. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the anti-pressure ulcer bedpan device for ICU patients in the first embodiment of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the center seat cushion assembly from a first-person perspective;

[0019] Figure 3 for Figure 1 A schematic diagram of the center seat cushion assembly from a second-view perspective;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure inside the middle support;

[0021] Figure 5 for Figure 4 Exploded view of the structure inside the central support;

[0022] Figure 6 for Figure 4 A schematic diagram of the transverse drive structure in the middle;

[0023] Figure 7 for Figure 6 Exploded view of the transverse drive structure in the middle;

[0024] Explanation of key component symbols:

[0025]

[0026]

[0027] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figures 1 to 7 The image shows an anti-pressure ulcer bedpan device for ICU patients according to the first embodiment of the present invention. It includes a support 10, a receiving groove 12 recessed in the support 10, a bidirectional drive assembly and a seat cushion assembly 20 disposed in the receiving groove 12. The seat cushion assembly 20 includes a support platform 21 connected to the bidirectional drive assembly, a bedpan placement groove 23 recessed in the support platform 21, and a bedpan detachably disposed in the bedpan placement groove 23. The bedpan includes a rigid body part 24 and an elastic part 25 disposed on the rigid body part 24. The elastic part 25 has a biomimetic curved surface for conforming to the human buttocks.

[0032] Understandably, by setting a receiving groove 12 in the support 10, and setting a bidirectional drive component and a seat cushion component 20 in the receiving groove 12, when a weak ICU patient needs to use the toilet, the caregiver helps the patient sit on the bedpan and uses the bedpan directly or by placing a fecal bag on the bedpan. The biomimetic curved surface on the elastic part 25 better adapts to the shape of the buttocks, and the elastic part 25 is elastic and can be made of medical-grade silicone material to distribute the pressure on the sacrum, coccyx, and ischial tuberosity. Bedridden patients may experience muscle atrophy on one side due to long-term fixed posture, resulting in unevenness on both sides of the buttocks. The bidirectional drive component can adjust the tilt of the support platform 21. Make minor adjustments of less than 10° to raise the support platform 21 on the side with the smaller buttock flap and lower the other side to maintain body balance, reduce unilateral pressure concentration, and prevent pressure sores. At the same time, the tilt of the support platform 21 can be adjusted forward and backward according to each person's comfort to prevent the patient from exerting excessive force to maintain comfort and balance. Caregivers can adjust according to the patient's feelings. At the same time, a fecal bag can be placed on the support platform 21 to prevent the fecal bag from falling off, or a bedpan can be used directly for defecation. After defecation, the bedpan can be removed from the support platform 21 for easy cleaning, and it is also easy to clean the placement tank to prevent skin maceration caused by incomplete cleaning of excrement.

[0033] This invention uses the elastic part 25 on the bedpan to distribute pressure on the sacrum, coccyx and ischial tuberosity, and uses a bidirectional drive component to reduce the unilateral pressure concentration on the buttocks when long-term bedridden patients use the toilet, thus avoiding pressure sores.

[0034] Specifically, in this embodiment, the bidirectional drive assembly includes two transverse drive structures 30 and two longitudinal drive structures 31 disposed in the receiving groove 12. The two transverse drive structures 30 are arranged opposite each other in the transverse direction, and the two longitudinal drive structures 31 are arranged opposite each other in the longitudinal direction. The transverse drive structure 30 includes a first motor 41 disposed in the placement groove, a first worm gear 42 connected to the first motor 41, a first worm wheel 43 rotatably connected to the groove wall of the placement groove through a first bearing 47, two first guide rods 46 disposed in the groove wall of the placement groove, a first support column 44 slidably connected to the two first guide rods 46, and a first universal ball 45 disposed on the first support column 44. The first worm wheel 43 and the first worm gear 42 mesh, and the first support column 44... 4 is located in and threadedly connected to the first worm gear 43. A first universal bearing 28 is provided below the support platform 21 to cooperate with the first universal ball 45. The longitudinal drive structure 31 includes a second motor in the placement groove, a second worm connected to the second motor, a second worm gear rotatably connected to the groove wall of the placement groove through a second bearing, two second guide rods in the groove wall of the placement groove, a second support column slidably connected to the two second guide rods, and a second universal ball on the second support column. The second worm gear and the second worm mesh. The second support column is located in the second worm gear and threadedly connected to the second worm gear. A second universal bearing 27 is provided below the support platform 21 to cooperate with the second universal ball.

[0035] Understandably, when we need to tilt the support platform 21 slightly to the left, we can adjust it using the control button 11 on the support 10. The first motor 41 on the left receives the command and starts to rotate, causing the first worm gear 42 to drive the first worm wheel 43 to rotate. The rotation of the first worm wheel 43 will cause the first support column 44, which is threaded to it, to move downward a short distance along the first guide rod 46, so that the left side of the support platform 21 tilts slightly downward to reduce the height of the buttocks. The first motor 41 on the right will move in the opposite direction, causing the right side of the support platform 21 to tilt slightly upward to increase the height of the buttocks, thus achieving balance and reducing the unilateral pressure concentration on the buttocks, reducing the risk of pressure sores. When the first support columns 44 on the left and right sides rise and fall accordingly, the second motors on the front and rear sides will also drive the second support columns to adjust their height accordingly to adapt to the left and right tilt of the support platform 21. Similarly, the support platform 21 can be tilted forward and backward in the same way, so that the first support columns 44 on the left and right sides adjust their height accordingly to adapt to the forward and backward tilt of the support platform 21. These first motors 41 and second motors are pre-programmed, and the tilt amount is determined by the corresponding number of rotations. The first universal bearing 28 and the first universal ball bearing 45, as well as the second universal bearing 27 and the second universal ball bearing, can adaptively adapt to the tilt of the support platform 21. The first motor 41 and the second motor can be powered by battery charging.

[0036] Furthermore, the placement groove is provided with an annular support seat 13, and the lower end of the support platform 21 is provided with a clearance groove 26 for avoiding the annular support seat 13. A first annular support pad 32 is provided between the support platform 21 and the annular support seat 13. The first annular support pad 32 is made of elastic material. A second annular support pad 33 is provided between the support platform 21 and the support 10. The second annular support pad 33 is made of elastic material.

[0037] Understandably, the function of the first annular support pad 32 and the second annular support pad 33 is to properly support the support platform 21, so that it is not only supported by the combination of universal bearings and universal balls. The first annular support pad 32 and the second annular support pad 33 can be made of TPU material, which has a certain degree of support but also elasticity. In this way, when the tilt direction of the support platform 21 is changed, the patient's comfort can be improved, and they can feel the support and wrapping sensation.

[0038] Furthermore, the edge of the support platform 21 is provided with a plurality of spring pieces 29, which abut against the support platform 21 in the reset state; and a clearance hole 22 is provided on one side of the support platform 21.

[0039] Understandably, the purpose of setting the spring clip 29 is to make it easy to clamp the fecal bag and prevent it from falling off when using the toilet. The purpose of the clearance hole 22 is to allow the patient's thigh to be directly supported on the support 10 and not to change position with the movement of the support platform 21. Only the position of the buttocks changes with the support platform 21, because there is rarely uneven muscle development in the thigh. If the thigh also moves with the support platform 21, it will not make the patient feel comfortable.

[0040] In summary, the ICU patient pressure ulcer prevention bedpan device in the above embodiments of this utility model disperses pressure on the sacrum, coccyx, and ischial tuberosity through the elastic part on the bedpan, and reduces the unilateral pressure concentration on the buttocks of long-term bedridden patients when using the toilet through the bidirectional drive component, thereby avoiding pressure ulcers.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pressure ulcer prevention bedpan device for ICU patients, characterized in that, The device includes a support, a recessed receiving groove on the support, a bidirectional drive assembly and a seat assembly disposed in the receiving groove. The seat assembly includes a support platform connected to the bidirectional drive assembly, a toilet bowl placement groove recessed in the support platform, and a toilet bowl detachably disposed in the toilet bowl placement groove. The toilet bowl includes a rigid body portion and an elastic portion disposed on the rigid body portion. The elastic portion has a biomimetic curved surface for conforming to the human buttocks.

2. The ICU patient pressure ulcer prevention bedpan device according to claim 1, characterized in that, The bidirectional drive assembly includes two lateral drive structures and two longitudinal drive structures disposed in the receiving slot. The two lateral drive structures are disposed opposite each other in the lateral direction, and the two longitudinal drive structures are disposed opposite each other in the longitudinal direction.

3. The ICU patient pressure ulcer prevention bedpan device according to claim 2, characterized in that, The lateral drive structure includes a first motor disposed in the placement slot, a first worm gear connected to the first motor, a first worm wheel rotatably connected to the wall of the placement slot via a first bearing, two first guide rods disposed in the wall of the placement slot, a first support column slidably connected to the two first guide rods, and a first universal ball disposed on the first support column. The first worm wheel and the first worm gear mesh, the first support column is located in the first worm wheel and is threadedly connected to the first worm wheel, and a first universal bearing that cooperates with the first universal ball is provided below the support platform.

4. The ICU patient pressure ulcer prevention bedpan device according to claim 2, characterized in that, The longitudinal drive structure includes a second motor disposed in the placement slot, a second worm gear connected to the second motor, a second worm wheel rotatably connected to the wall of the placement slot via a second bearing, two second guide rods disposed in the wall of the placement slot, a second support column slidably connected to the two second guide rods, and a second universal ball disposed on the second support column. The second worm wheel and the second worm gear mesh, the second support column is located in the second worm wheel and is threadedly connected to the second worm wheel, and a second universal bearing that cooperates with the second universal ball is provided below the support platform.

5. The ICU patient pressure ulcer prevention bedpan device according to claim 1, characterized in that, The placement slot is provided with an annular support seat, and the lower end of the support platform is provided with a clearance groove for avoiding the annular support seat. A first annular support pad is provided between the support platform and the annular support seat. The first annular support pad is made of elastic material.

6. The ICU patient pressure ulcer prevention bedpan device according to claim 1, characterized in that, A second annular support pad is provided between the support platform and the support, and the second annular support pad is made of elastic material.

7. The ICU patient pressure ulcer prevention bedpan device according to claim 1, characterized in that, The edge of the support platform is provided with multiple spring clips, which abut against the support platform in the reset state.

8. The ICU patient pressure ulcer prevention bedpan device according to claim 1, characterized in that, One side of the support platform is provided with a clearance hole.