Anti-side-leakage negative pressure adsorption type side-lying position excrement collector

Abstract

The invention discloses an anti-side-leakage negative pressure adsorption type side-lying position excrement collector, belongs to the field of medical nursing instruments, and aims to overcome the defects that when an existing device is used in a side-lying position, the side leakage rate is high, operation is tedious, the comfort degree of a patient is poor, and the occupational exposure risk of medical staff is large. The bathtub comprises a bathtub body, a hip sealing air bag, a negative pressure adsorption ring and an odor-resistant magnetic suction cover, the basin body is of a cavity structure with an opening end, an inclined face flow guide table is arranged on the rear side of the opening end to guide excrement in, and the basin body is provided with an arc-shaped working face matched with the sacrococcygeal curved face of a human body and an outwards-protruding arc-shaped operation face. The hip sealing air bag is fixed to the rear side of the open end and tightly attached to the hip of the human body after being inflated. The negative pressure adsorption rings are arranged on the arc-shaped working face in a bilateral symmetry mode and can be inflated to level the sacrococcygeal curved surface, and negative pressure is formed through air exhaust to achieve zero-hand-holding fixation. The lateral leakage risk of the lateral position is effectively reduced, operation is simplified, the comfort level of a patient is improved, peculiar smell and aerosol can be prevented from diffusing, the medical infection risk is reduced, and the device is suitable for multiple scenes of clinic, families and emergency rescue.

Description

Technical Field

[0001] This invention belongs to the field of medical and nursing device technology, specifically relating to a side-leaking negative pressure adsorption type fecal collector for lateral lying position. Background Technology

[0002] In clinical nursing, home care, and emergency rescue scenarios, collecting feces from patients in a lateral decubitus position (such as those who are bedridden after surgery, in intensive care, or have limited mobility) has long been a challenge for healthcare workers. Existing feces collection devices generally suffer from drawbacks such as high leakage rates, cumbersome operation, poor patient comfort, and high occupational exposure risks for healthcare workers, making it difficult to meet the needs for efficient and safe nursing care in various scenarios.

[0003] Specifically, traditional flat bedpans require assistance in placing the patient by lifting their hips, and cannot fit snugly against the gluteal cleft when the patient is in a lateral position, resulting in a leakage rate of >25% for loose stools; disposable bedpans have no support structure at the opening, requiring two people to work together to unfold and secure the bag, and the opening is prone to collapse, causing excrement to splash; adult diapers have a leakage rate of >30% when using high-volume enema solutions >300mL, and the leakage cannot be measured; the rigid rim of rigid anal collection cups can easily compress the sacrum and coccyx, and after 30 minutes of use, there is a risk of stage I pressure injury, resulting in poor patient comfort and reliance on manual support for fixation, making it impossible to achieve zero-hand support care, further increasing the workload of medical staff.

[0004] Furthermore, existing devices often lack odor control and aerosol filtration capabilities, leading to unpleasant odors from excrement and aerosol diffusion that can deteriorate the ward environment and increase the risk of occupational exposure for healthcare workers. While some devices do have metering functions, the readings require emptying the container, further increasing the risk of infection. Additionally, existing devices are generally large, heavy, and expensive, making it difficult to deploy them across multiple scenarios such as homes, field disaster relief, and more, thus failing to meet the rapid nursing needs during public health emergencies.

[0005] In summary, existing fecal collection devices have significant shortcomings in terms of sealing reliability, ease of operation, patient comfort, infection control, and scenario adaptability. There is an urgent need for a disposable fecal collection device that can reduce the risk of side leakage by enabling lateral decubitus positioning, achieve zero-hand support for fixation, and is easy to operate, prevents odor and aerosol diffusion, provides high patient comfort, and allows readings without tilting, in order to address the multidimensional clinical pain points in existing technologies. Summary of the Invention

[0006] In view of this, the purpose of this invention is to provide a side-leaking negative pressure adsorption type lateral decubitus fecal collector to solve the defects of existing fecal collection devices when used in the lateral decubitus position, such as high side leakage rate, cumbersome operation, poor patient comfort, high occupational exposure risk for medical staff, inability to measure some data, lack of odor prevention and aerosol filtration functions, and difficulty in multi-scenario one-time promotion. The invention achieves the effects of reducing side leakage risk, zero hand support for fixation, convenient operation, odor prevention and aerosol diffusion prevention, high patient comfort, and reading without tilting, making it suitable for multiple scenarios such as clinical, home and emergency rescue.

[0007] To achieve the above-mentioned objectives, the technical solution adopted is as follows:

[0008] This invention discloses a side-leaking negative pressure adsorption type fecal collector for lateral lying position, comprising: a basin body, which is constructed as a cavity structure with an open end, forming a pelvic cavity for receiving excrement; a guide platform is provided on the rear edge of the open end of the basin body for guiding excrement into the pelvic cavity, the guide platform being constructed as a sloping structure with a preset angle; a buttock sealing airbag, which is disposed on the rear edge of the open end of the basin body and fixedly connected to the guide platform, and is constructed to be able to expand by inflating and fit tightly against the surface of the human buttocks; and a negative pressure adsorption ring, which is disposed on the rear surface of the basin body, and is constructed to be able to inflate by inflating to level the sacral and coccygeal curvature of the human body, and to be able to form a negative pressure adsorption state by deflating.

[0009] The term "posterior side" refers to the side closest to the patient, based on the relative position of the device when used by a patient in a lateral decubitus position.

[0010] In this invention, the synergistic design of the pelvis, the flow guide, the buttock sealing airbag, and the negative pressure adsorption ring achieves double sealing protection in the lateral position: the buttock sealing airbag conforms to the buttocks to form the first seal, and the negative pressure adsorption ring adsorbs and fixes to form the second seal, effectively solving the problem of high side leakage rate in existing devices; the inclined structure of the flow guide can guide excrement to flow smoothly into the pelvic cavity, avoiding splashing and contamination, and the overall side leakage risk is significantly reduced, achieving a nursing effect of zero hand support, greatly reducing the labor intensity of medical staff.

[0011] Furthermore, the basin has an arc-shaped working surface and an arc-shaped operating surface arranged circumferentially; the arc-shaped working surface is constructed to fit the curve of the human sacrum and coccyx, the arc-shaped operating surface is fixedly connected to the arc-shaped working surface, and extends outward in a direction away from the human body; the negative pressure adsorption rings are multiple ones set on the arc-shaped working surface, and are symmetrically distributed on the left and right sides relative to the arc-shaped working surface.

[0012] In this invention, the arc-shaped working surface is precisely adapted to the sacral and coccygeal curves of the human body. Combined with multiple negative pressure adsorption rings symmetrically distributed on the left and right, the device can fit more closely to the body and the force is more even, making it less likely to shift when the patient turns over. The outward convex design of the arc-shaped operating surface provides ample operating space for the operator, further improving the convenience of nursing care.

[0013] Furthermore, the arc-shaped operating surface is equipped with a handle for lifting the basin, an inflation valve for controlling the inflation of the buttock sealing airbag, and a negative pressure adsorption ring switch for controlling the inflation and de-inflation of the negative pressure adsorption ring; the inflation valve and the negative pressure adsorption ring switch are respectively connected to the buttock sealing airbag and the negative pressure adsorption ring through pipes configured inside the basin wall.

[0014] In this invention, the arc-shaped operating surface integrates a handle, an inflation valve, and a negative pressure adsorption ring switch, allowing a single person to complete the device placement, inflation, and negative pressure fixation operations, reducing nursing manpower and operation time; the built-in pipeline connects to the air circuit, avoiding external pipeline entanglement and improving operational safety and efficiency.

[0015] Furthermore, the negative pressure adsorption ring is made of medical-grade silicone or flexible rubber, and has a sealed chamber inside; the sealed chamber can be evacuated by a micro air pump to make the negative pressure adsorption ring form a negative pressure adsorption state.

[0016] In this invention, the negative pressure adsorption ring is made of medical-grade silicone or flexible rubber, which has good flexibility and biocompatibility; the sealed chamber, combined with a micro air pump, can precisely control the negative pressure intensity, ensuring stable adsorption while avoiding skin pressure injury.

[0017] Furthermore, the buttock sealing airbag is a flexible airbag that extends from the rear edge of the pelvic opening towards the body; after inflation, the buttock sealing airbag is crescent-shaped and has a heat-retaining coating on its surface.

[0018] In this invention, the buttock sealing airbag is made of flexible material. After inflation, it takes the shape of a crescent and can completely conform to the curve of the buttock, sealing it without gaps. The heat-retaining coating on the surface can maintain a comfortable temperature and will not produce indentations even after long-term use, significantly improving patient comfort.

[0019] Furthermore, the inclined surface of the flow guide is arranged at an angle of 30° to 45° relative to the end face of the opening end of the basin.

[0020] In this invention, the inclined surface of the guide platform forms an angle of 30° to 45° with the opening of the basin. This angle design allows excrement to flow smoothly into the pelvic cavity by gravity, reducing residue and splashing, and further reducing the risk of cross-infection.

[0021] Furthermore, it also includes an odor-proof magnetic cover; the opening end of the basin is provided with a magnetic element, and the odor-proof magnetic cover is closed onto the basin through the magnetic element; the odor-proof magnetic cover is provided with a filter structure for deodorization, and can create a negative pressure environment in the basin cavity through continuous air extraction.

[0022] In this invention, the odor-proof magnetic cover closes quickly via a magnetic component, making it easy to operate; the filtration structure and continuous air extraction function create a negative pressure environment in the pelvic cavity, effectively adsorbing odors and aerosols, significantly improving the ward environment and reducing the occupational exposure risk for medical staff.

[0023] Furthermore, the odor-proof magnetic cover is a transparent cover; the inner wall of the front side of the basin is provided with a scale area, and the scale area is provided with scale lines that are easy to observe with the naked eye. The scale lines are provided with numerical markings for indicating the volume of excrement; a protrusion is provided below the scale area to assist in reading the volume at eye level.

[0024] In this invention, the transparent odor-proof magnetic cover makes it easy for medical staff to observe the characteristics of excrement; the scale area of ​​the basin, combined with the protrusion design, allows for reading at eye level, enabling rapid acquisition of volume data without the need for a tilting device, reducing exposure risk and improving the efficiency of disease monitoring.

[0025] Furthermore, the filtration structure is integrated into the top of the odor-proof magnetic cover, including activated carbon and HEPA filter windows; the odor-proof magnetic cover has an air extraction rate of 3L / min to 8L / min, so that the pelvic cavity forms a negative pressure environment within a preset time period.

[0026] In this invention, the composite filtration structure of activated carbon and HEPA filter window can efficiently adsorb odors and intercept aerosols. The air extraction rate of 3L / min to 8L / min is suitable for various scenarios and can quickly form a stable negative pressure environment to improve the comfort of the ward.

[0027] Furthermore, the magnetic component is a ring of soft magnetic strips embedded in the opening of the basin. The soft magnetic strips are made of TPU and magnetically attach to the odor-proof magnetic cover.

[0028] In this invention, the TPU-coated soft magnetic strip combines magnetic strength and durability, protecting the soft magnetic strip from wear and corrosion, while ensuring the stability of the magnetic attraction with the odor-proof magnetic cover, enhancing the sealing of the cover and preventing odor leakage.

[0029] The advantages of this invention compared to the prior art are as follows:

[0030] (1) After the buttock sealing airbag of the present invention is inflated, it fits tightly with the human buttock to form the first seal. The negative pressure adsorption ring draws air to form a negative pressure adsorption state to form the second seal. The double seal, together with the inclined guide platform at a preset angle, can guide the excrement to flow smoothly into the pelvic cavity and avoid splashing and side leakage. The side leakage rate was verified by an in vitro 300mL loose stool impact test. It was reduced from 25%-40% of the existing traditional flat toilet bowl (>25%) and adult diapers (>30% when enema liquid >300mL) to <1%, effectively solving the core problem of high side leakage rate of existing devices.

[0031] (2) The device can be placed without assisting the patient to lift their buttocks. The negative pressure suction ring is inflated and leveled to achieve stable fixation without the need for hand support. A single person can complete the basic operation without the need for two people to cooperate. The nursing time is reduced from 5-7 minutes to 1-2 minutes, significantly reducing nursing manpower input and operation time. It solves the drawbacks of traditional flat bedpans that require lifting the buttocks to place and rigid anal collection cups that rely on hand support for fixation.

[0032] (3) The flexible fit design of the buttock sealing airbag and the negative pressure adsorption ring avoids the problem of stage I pressure injury caused by the hard cup edge pressing on the sacrum and coccyx after 30 minutes. It adapts to the physiological curvature of the human body, reduces body position interference, and improves the comfort of long-term use.

[0033] (4) The inclined structure of the flow guide can prevent excrement from splashing and contaminating the bed unit and medical staff. Combined with double sealing, it reduces the exposure of excrement and alleviates the risk of cross-infection and occupational exposure caused by the collapse of the opening of the existing disposable pad bag and the need to tilt the device for reading. At the same time, the device of the present invention is integrally molded, with a total weight of <300g and a folding thickness of <30mm, reducing the cost by 18%. It is suitable for the hygiene needs of multiple scenarios such as clinical, home and emergency rescue, and is suitable for disposable promotion and use.

[0034] The following describes in detail, with reference to the embodiments and reference numerals in the accompanying drawings, a side-leaking negative pressure adsorption type lateral fecal collector of the present invention. Attached Figure Description

[0035] Figure 1 This is a simplified frontal view of the anti-leakage negative pressure adsorption lateral fecal collector of the present invention in the lateral position of a human body.

[0036] Figure 2 This is a top view of the anti-leakage negative pressure adsorption lateral fecal collector of the present invention;

[0037] Figure 3 This is a simplified structural diagram of the odor-proof magnetic suction cover of the anti-leakage negative pressure adsorption type lateral fecal collector of the present invention;

[0038] Figure 4 This is a diagram illustrating the negative pressure adsorption ring on the arc-shaped working surface of the anti-leakage negative pressure adsorption lateral fecal collector of the present invention.

[0039] Figure Labels

[0040] 1. Basin body; 2. Basin bottom; 3. Basin cavity; 4. Arc-shaped working surface; 5. Arc-shaped operating surface; 6. Flow guide platform;

[0041] 7. Buttock seal airbag; 8. Negative pressure adsorption ring; 9. Handle; 10. Inflation valve; 11. Negative pressure adsorption ring switch;

[0042] 12. Odor-proof magnetic cover; 13. Cover slot; 14. Soft magnetic strip; 15. Scale lines; 16. Boss; 17. Activated carbon; 18. HEPA filter window. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the present invention clearer, the following description will be provided in conjunction with the embodiments of the present invention and the accompanying drawings. Figures 1-4 The technical solution of the present invention will be clearly and completely described herein. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0044] like Figures 1-4 As shown, this invention discloses a disposable, leak-proof, negative pressure adsorption type fecal collector for lateral recumbent positions, belonging to the field of medical nursing devices. The core components include a basin body 1, a basin bottom 2, a pelvic cavity 3, a flow guide 6, a buttock-sealing airbag 7, and a negative pressure adsorption ring 8. The device features a one-piece molded design, with a total weight of <300g and a folded thickness of <30mm, reducing costs by 18% compared to existing devices. It is suitable for disposable hygiene use in various scenarios, including clinical settings, home use, and emergency rescue. The basin body 1 is a cavity structure with an open end, its bottom being the basin bottom 2, forming a pelvic cavity 3 for accommodating excrement. A flow guide 6 is integrally formed on the rear edge of the open end of the basin body 1. This flow guide 6 is a sloped structure with a preset angle, specifically designed to smoothly guide human excrement into the pelvic cavity 3. The buttock sealing airbag 7 is fixedly installed on the rear edge of the opening end of the pelvis 1 and is seamlessly connected to the guide platform 6. Its structure is an inflatable structure, which can achieve a close fit with the surface of the human buttocks by inflating and expanding. The negative pressure adsorption ring 8 is set on the rear surface of the pelvis 1. It can achieve a level fit with the sacral and coccygeal curve of the human body by inflating and expanding, and can also form a negative pressure adsorption state by deflating.

[0045] This invention, through the synergistic design of the above structures, constructs a dual-seal protection system for lateral decubitus positions: the buttock-sealing airbag 7 conforms to the buttocks to form the first sealing barrier, and the negative pressure adsorption ring 8 adsorbs the sacrum and coccyx to form the second fixed sealing barrier. Verified by an in vitro 300mL loose stool impact test, the side leakage rate can be reduced to <1%, effectively solving the technical pain point of high side leakage rate in existing fecal collection devices; at the same time, the inclined structure of the guide platform 6 can use gravity to guide the excrement smoothly into the pelvic cavity 3, avoiding the splashing and contamination of excrement from the source. Overall, it achieves a significantly reduced risk of side leakage and a nursing effect that does not require manual support, greatly reducing the labor intensity of medical staff.

[0046] like Figure 1 and Figure 4As shown, in a preferred embodiment of the present invention, the basin 1 has an arc-shaped working surface 4 and an arc-shaped operating surface 5 integrally arranged circumferentially. The arc-shaped working surface 4 is a curved surface structure adapted to the sacral and coccygeal curve of the human body, serving as the core contact surface of the basin 1 closest to the human body. The arc-shaped operating surface 5 is fixedly connected to the arc-shaped working surface 4 and extends outward in a direction away from the human body, providing ample space for medical operations. Multiple negative pressure suction rings 8 (preferably two) are evenly distributed on the arc-shaped working surface 4 and are symmetrically arranged relative to the arc-shaped working surface 4. This design allows the arc-shaped working surface 4 to precisely fit the sacral and coccygeal curve of the human body. Combined with the symmetrically distributed negative pressure suction rings 8, this results in a higher degree of fit between the device and the human body, and more even force distribution. Even if the patient turns over 15°, the device will not shift, further ensuring the anti-leakage effect and operational stability.

[0047] like Figure 1 As shown, in a preferred embodiment of the present invention, a handle 9, an inflation valve 10, and a negative pressure adsorption ring switch 11 are integrated on the arc-shaped operating surface 5. The handle 9 is used by medical personnel to quickly lift and move the basin 1; the inflation valve 10 is specifically used to control the inflation action of the buttock sealing airbag 7; the negative pressure adsorption ring switch 11 is a dual-control switch, which can control the inflation and de-inflation actions of the negative pressure adsorption ring 8 respectively. The inflation valve 10 and the negative pressure adsorption ring switch 11 are respectively connected to the internal chambers of the buttock sealing airbag 7 and the negative pressure adsorption ring 8 through air guide pipes pre-embedded in the wall of the basin 1. The air guide pipes are conventional pipeline structures and are not shown in the figure. This integrated design allows medical staff to complete the entire process of device placement, pelvic airbag inflation, and negative pressure adsorption ring fixation by a single person, reducing the traditional 5-7 minute nursing time for two people to 1-2 minutes for one person, significantly reducing nursing manpower and operation time; at the same time, the built-in pipeline design avoids the problems of external pipeline entanglement and detachment, improving the safety and efficiency of the operation process.

[0048] like Figure 4 As shown, in a preferred embodiment of the present invention, the negative pressure adsorption ring 8 is made of medical-grade silicone or flexible rubber, and has an independent sealed chamber inside. This sealed chamber can be connected to an external micro-pump, and by pumping air through the micro-pump, a negative pressure adsorption state is formed between the negative pressure adsorption ring 8 and the human skin. Its maximum adsorption pressure can be adjusted to about -5KP to -10KP, and the maximum load-bearing capacity can reach 3kg. The medical-grade silicone or flexible rubber material used in the negative pressure adsorption ring 8 has good flexibility, elasticity and biocompatibility, and will not irritate the human skin. The sealed chamber, combined with the precise control of the micro-pump, can ensure the stability of adsorption and avoid damage to the human skin due to excessive negative pressure, thus balancing the fixation effect and the safety of use, and solving the problem that existing rigid anal collection cups are prone to pressure injury to the sacrum and coccyx.

[0049] like Figure 1 and Figure 2 As shown, in a preferred embodiment of the present invention, the buttock-sealing airbag 7 is a flexible airbag structure that extends from the rear edge of the opening end of the pelvis 1 towards the human body, with an initial extension width of 2 cm. After inflation, the buttock-sealing airbag 7 forms a crescent shape that conforms to the curve of the human buttocks, completely fitting the lower edge of the buttocks for a seamless seal. Simultaneously, the surface of the buttock-sealing airbag 7 is coated with a 0.2 mm thick heat-retaining coating, which maintains the contact temperature within the comfortable range of 32-34°C. Even if the patient uses it continuously for 30 minutes, the design of this flexible airbag combined with the heat-retaining coating will not cause harm to the skin, significantly improving patient comfort.

[0050] like Figure 2 As shown, in a preferred embodiment of the present invention, the inclined surface of the guide platform 6 is arranged at an angle of 30° to 45° relative to the end face of the opening end of the basin 1, preferably 30°. This angle and range is the optimal design verified by multiple tests. Within this angle range, excrement can flow quickly and smoothly into the pelvic cavity 3 by its own gravity. The 30° angle design can maximize the avoidance of splashing caused by excessively fast excrement flow. It will not cause excrement to remain on the surface of the guide platform 6 due to the angle being too small, nor will it cause excrement to splash out of the pelvic cavity 3 due to the excessively large angle, further reducing the risk of cross-infection.

[0051] like Figure 1 and Figure 3 As shown, in a preferred embodiment of the present invention, the fecal collector further includes an odor-proof magnetic cover 12. A magnetic element is circumferentially embedded at the open end of the basin 1, allowing the odor-proof magnetic cover 12 to quickly close at the open end of the basin 1 via this magnetic element. The odor-proof magnetic cover 12 integrates a filter structure for deodorization and filtration, and can be connected to a micro-vacuum assembly to create a stable negative pressure environment within the pelvic cavity 3 through continuous vacuuming. The quick magnetic closure design of the odor-proof magnetic cover 12 eliminates the need for additional clips, making operation convenient and efficient. The combination of the filter structure and the continuous vacuuming function creates negative pressure within the pelvic cavity 3, actively adsorbing odors and aerosols within the pelvic cavity 3, significantly improving the ward environment and fundamentally reducing the occupational exposure risk for medical staff.

[0052] In a preferred embodiment of the present invention, the odor-proof magnetic cover 12 is a cover body made of transparent plastic, which facilitates medical staff to directly observe the color and properties of excreta in the pelvic cavity 3 without opening the cover body. A scale area is provided on the inner wall of the front side of the basin body 1, and scale lines 15 that are convenient for visual observation are engraved in the scale area. The minimum scale value of the scale lines 15 is 25 mL, the maximum range is 1000 mL, and numerical identifiers for indicating the volume of excreta are correspondingly provided beside the scale lines 15; the line width of the scale lines 15 is 0.3 mm, and the color contrast with the color of the basin body 1 is ≥ 70%, and can be clearly recognized within a distance of 1 m under natural light. A convex platform 16 with a height of 2 mm (not shown in the figure) is integrally formed below the scale area. This convex platform 16 forms a "line-of-sight horizontal groove". After medical staff squat down, they can achieve a horizontal reading through this convex platform 16, and can quickly obtain the excreta volume data without pouring the basin body 1, completely eliminating the occupational exposure risk brought by the pouring operation, and at the same time improving the efficiency of disease monitoring.

[0053] As Figure 3 shown, in a preferred embodiment of the present invention, the filtering structure is integrated at the center of the cover top of the odor-proof magnetic cover 12, and specifically includes activated carbon 17 and a HEPA filter window 18, which are arranged in an upper and lower stacked manner. The activated carbon 17 is used to adsorb odor molecules, and the HEPA filter window 18 is used to intercept aerosol particles. The air extraction rate of the micro air extraction component配套 to the odor-proof magnetic cover 12 is 3 L / min to 8 L / min. Under this air extraction rate, a negative pressure environment of -5 mmHg can be formed in the pelvic cavity 3 within 30 seconds. The composite filtering structure of the activated carbon 17 and the HEPA filter window 18 can achieve an odor and aerosol filtration rate > 99%; the air extraction rate of 3 L / min to 8 L / min meets the use requirements of multiple scenarios such as hospitals, families, and field post-disaster rescue, can quickly form and maintain a stable negative pressure environment, effectively avoid the leakage of odor and aerosol, and improve the comfort of the ward and the use scenario.

[0054] As Figure 2 and Figure 3As shown, in a preferred embodiment of the present invention, the magnetic element embedded in the opening end of the basin 1 is a soft magnetic strip 14. The soft magnetic strip 14 is integrally molded using TPU material. A cover slot 13 is correspondingly provided at the opening end of the basin 1. The cover slot 13 is an embedded and adapted structure for the soft magnetic strip 14, improving the connection stability between the soft magnetic strip 14 and the basin 1. After the soft magnetic strip 14 is embedded in the cover slot 13, it achieves a stable magnetic attraction with the odor-proof magnetic cover 12. The TPU material has good wear resistance, corrosion resistance, and flexibility. Its encapsulation design for the soft magnetic strip 14 can protect the soft magnetic strip 14 from corrosion and wear of excrement, extending its service life, and can also improve the connection firmness between the soft magnetic strip 14 and the basin 1. At the same time, the magnetic attraction between the encapsulated soft magnetic strip 14 and the odor-proof magnetic cover 12 is tighter, which can enhance the closure and sealing between the odor-proof magnetic cover 12 and the basin 1, further preventing odor and aerosol leakage.

[0055] The device of this invention is designed for single use, and a single person can complete the entire operation. The specific usage process and principle are as follows: Medical staff hold the handle 9 and place the arc-shaped working surface 4 against the sacral and coccygeal curve of the patient in a lateral decubitus position, so that the guide platform 6 is aligned with the excretion site. The fit and positioning can be completed without assisting the patient to lift their buttocks. Press the inflation valve 10 to inflate the buttock sealing airbag 7 to form the first seal. Then operate the negative pressure adsorption ring switch 11 to first inflate the negative pressure adsorption ring 8 to level the sacral and coccygeal curve, and then de-inflate to form negative pressure adsorption to achieve zero-hand support fixation. When the patient excretes, the excrement flows into the pelvic cavity through the 30° to 45° guide platform 6 by gravity. 3. Effectively avoids splashing and residue. Medical staff can observe the characteristics of excrement through the transparent odor-proof magnetic cover 12 and read the volume at eye level using the scale lines 15 and protrusions 16, without needing to tilt the device. During use, the miniature suction component of the odor-proof magnetic cover 12 continuously draws air, creating negative pressure in the pelvic cavity 3. Odors and aerosols are purified by activated carbon 17 and HEPA filter window 18 before being discharged, reducing the occupational exposure risk for medical staff. After use, first release the negative pressure adsorption, then deflate the buttock seal airbag 7, and remove the device by holding the handle 9. It can be directly disposed of according to medical waste regulations without cleaning or disinfection. The entire process relies on the core principles of ergonomic adaptation, double sealing protection, negative pressure adsorption fixation, gravity guidance, and composite filtration to achieve the effects of preventing side leakage, high comfort, and low exposure. Moreover, the device is lightweight and easy to fold, suitable for disposable use in multiple scenarios such as clinical, home, and emergency rescue.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment includes only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A side-leaking negative pressure adsorption type fecal collector for lateral lying positions, characterized in that, include: The pelvis is a cavity structure with an open end, forming an internal cavity for containing excrement. The rear edge of the opening end of the basin is provided with a guide platform for guiding excrement into the pelvic cavity. The guide platform is constructed as a sloping structure with a preset angle. The buttock-sealing airbag is located on the rear edge of the opening end of the pelvis and is fixedly connected to the guide platform. It is designed to be able to expand by inflation and fit tightly against the surface of the human buttocks. The negative pressure adsorption ring is set on the rear surface of the basin and is constructed to be able to flatten the human sacral and coccygeal curvature by inflating and to form a negative pressure adsorption state by evacuating.

2. The anti-leakage negative pressure adsorption type lateral fecal collector according to claim 1, characterized in that, The basin has an arc-shaped working surface and an arc-shaped operating surface arranged circumferentially; the arc-shaped working surface is constructed to conform to the curvature of the human sacrum and coccyx, the arc-shaped operating surface is fixedly connected to the arc-shaped working surface and extends outward in a direction away from the human body; the negative pressure adsorption rings are multiple rings disposed on the arc-shaped working surface and are symmetrically distributed on the left and right sides relative to the arc-shaped working surface.

3. The anti-leakage negative pressure adsorption type lateral fecal collector according to claim 2, characterized in that, The arc-shaped operating surface is provided with a handle for lifting the basin, an inflation valve for controlling the inflation of the buttock sealing airbag, and a negative pressure adsorption ring switch for controlling the inflation and de-inflation of the negative pressure adsorption ring; the inflation valve and the negative pressure adsorption ring switch are respectively connected to the buttock sealing airbag and the negative pressure adsorption ring through pipes arranged inside the basin wall.

4. The anti-leakage negative pressure adsorption type lateral fecal collector according to claim 3, characterized in that, The negative pressure adsorption ring is made of medical silicone or flexible rubber and has a sealed chamber inside. The sealed chamber can be evacuated by a micro air pump to make the negative pressure adsorption ring form a negative pressure adsorption state.

5. The anti-leakage negative pressure adsorption type lateral fecal collector according to claim 1, characterized in that, The buttock sealing airbag is a flexible airbag that extends from the rear edge of the pelvic opening towards the human body; the buttock sealing airbag is crescent-shaped after inflation and has a heat-retaining coating on its surface.

6. The anti-leakage negative pressure adsorption type lateral fecal collector according to claim 1, characterized in that, The inclined surface of the flow guide is arranged at an angle of 30° to 45° relative to the end face of the opening end of the basin.

7. The anti-leakage negative pressure adsorption type lateral fecal collector according to claim 1, characterized in that, It also includes an odor-proof magnetic cover; the opening end of the basin is provided with a magnetic element, and the odor-proof magnetic cover is closed onto the basin through the magnetic element; the odor-proof magnetic cover is provided with a filter structure for deodorization, and can create a negative pressure environment in the basin cavity by continuously pumping air.

8. The anti-leakage negative pressure adsorption type lateral fecal collector according to claim 7, characterized in that, The odor-proof magnetic cover is a transparent cover; the inner wall of the front side of the basin is provided with a scale area, the scale area is provided with scale lines that are easy to observe with the naked eye, and the scale lines are provided with numerical markings for indicating the volume of excrement; a protrusion is provided below the scale area for assisting in reading the volume at eye level.

9. The anti-leakage negative pressure adsorption type lateral fecal collector according to claim 7, characterized in that, The filtration structure is integrated into the top of the odor-proof magnetic cover and includes activated carbon and a HEPA filter window; the air extraction rate of the odor-proof magnetic cover is 3L / min to 8L / min, so that the pelvic cavity forms a negative pressure environment within a preset time period.

10. The anti-leakage negative pressure adsorption type lateral fecal collector according to claim 7, characterized in that, The magnetic component is a ring of soft magnetic strips embedded in the opening of the basin. The soft magnetic strips are made of TPU and magnetically attach to the odor-proof magnetic cover.

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