Pressure damage prevention monitoring device and use method

Abstract

The invention discloses an anti-pressure injury monitoring device and a use method, and belongs to the technical field of nursing surgery, the anti-pressure injury monitoring device comprises an air bag supporting layer, and the air bag supporting layer is used for bearing a human body; the pressure sensor layer is arranged above the air bag supporting layer and used for sensing multi-point pressure data of a human body and a contact surface in real time, the device has a monitoring protection mode and an active ventilation mode, and in the monitoring protection mode, when the control assembly judges that the risk level reaches a preset threshold value, an alarm mechanism is triggered; in the active ventilation mode, the control assembly intermittently relieves pressure of the multiple rows of air bag units, the corresponding area of the air path mechanism is driven, and directional air flow pointing to the body surface of the patient is generated. Local pressure is physically reduced through deflation of the air bag unit, and more innovatively, directional airflow is actively conveyed to the corresponding body surface through a designed air path while pressure reduction is conducted, the airflow can directly take away moisture and redundant heat on the skin surface, and the pressed local skin is effectively dried and cooled.

Description

Technical Field

[0001] This invention belongs to the field of nursing surgical technology, and more specifically, relates to a pressure injury monitoring device and its usage method. Background Technology

[0002] Pressure injuries, also known as bedsores, are a common and serious complication in patients who are bedridden or sedentary for extended periods, especially the elderly, frail, paralyzed, or post-operatively ill. The root cause lies in the prolonged and continuous pressure on local tissues, such as bony prominences, which obstructs blood circulation, leading to tissue ischemia, hypoxia, malnutrition, and ultimately ulceration and necrosis.

[0003] In addition to stress, localized dampness can also significantly reduce skin tolerance, causing tissue to break down in a shorter time and under less pressure. Summary of the Invention

[0004] To solve the above problems, the present invention adopts the following technical solution: A pressure damage monitoring device, comprising: An airbag support layer is used to support the human body. The airbag support layer includes multiple independent airbag units and has at least one row of ventilation holes that communicate with the external environment. A pressure sensor layer is provided above the airbag support layer to sense multi-point pressure data between the human body and the contact surface in real time. An airway control mechanism is provided below the airbag support layer and is used to inflate, depressurize and ventilate each airbag unit. A control component, which is electrically connected to both the pressure sensor layer and the pneumatic control mechanism; The device has a monitoring and protection mode and an active ventilation mode. In monitoring and protection mode, the control component receives and analyzes the pressure data transmitted by the pressure sensor and determines whether there is a risk of pressure injury to the patient's local tissues. When the risk level is determined to reach a preset threshold, an alarm mechanism is triggered. In active ventilation mode, the control component intermittently depressurizes multiple airbag units. When depressurizing a target airbag unit, it synchronously drives the airway mechanism in the corresponding area of ​​the target airbag unit to generate a directional airflow directed towards the patient's body surface.

[0005] Furthermore, the airbag support layer includes an upper and lower airbag layer and a support plate, multiple rows of airbag units constitute the airbag layer, multiple rows of ventilation holes and multiple rows of airbag units are alternately arranged, and the bottom of the support plate is also provided with multiple ventilation channels communicating with the outside, and the lower ends of the ventilation holes located in the same row are connected through a ventilation channel.

[0006] Furthermore, each airbag unit is provided with an air intake channel that runs vertically through it. The air intake end of the air intake channel is connected to an air source, and the air outlet end is oriented towards the human body.

[0007] Furthermore, the gas path mechanism includes: An air source is provided at the lower end of the airbag support layer and is electrically connected to the control component. An inflation manifold, wherein the air inlet of the inflation manifold is connected to the air outlet of the air source, and a first solenoid valve is provided on the inflation manifold, the first solenoid valve being electrically connected to the control component; Multiple inflation branch pipes are provided, and the air inlet of each inflation branch pipe is connected to the air outlet of the main inflation pipe. The multiple inflation branch pipes are correspondingly arranged with multiple rows of airbag units, and each inflation branch pipe is connected to the corresponding airbag unit through multiple inflation risers. A venting main pipe, wherein the air inlet end of the venting main pipe, the air outlet end of the air source and the air inlet end of the inflation main pipe are connected by a T-junction, and a second solenoid valve is provided on the venting main pipe, the second solenoid valve being electrically connected to the control component; Multiple ventilation branch pipes are provided, and the air inlet end of each ventilation branch pipe is connected to the air outlet end of the main ventilation pipe. The multiple ventilation branch pipes are correspondingly arranged with multiple rows of airbag units. Each ventilation branch pipe is connected to the air inlet end of the corresponding air inlet channel through multiple ventilation risers. Each airbag unit is equipped with an exhaust valve, and each ventilation branch pipe and inflation branch pipe is equipped with a third solenoid valve.

[0008] Furthermore, each airbag unit is provided with multiple exhaust channels, the lower end of which passes through the support plate and communicates with the outside.

[0009] Furthermore, the outlet end of the air intake channel has a tapered structure.

[0010] A method of using a pressure damage prevention monitoring device, employing any of the pressure damage prevention monitoring devices described above, the method comprising the following steps: S1. Inflate the airbag unit; S2. The pressure data of each contact point on the patient's body is monitored in real time through the pressure sensor layer and transmitted to the control component; S3. In the monitoring and protection mode, the control component receives and analyzes the pressure data, determines the risk level of pressure injury to the patient's local tissues, and triggers an alarm when the risk level reaches a preset threshold. S4. Medical staff depressurize the airbag unit accordingly. S5. In active ventilation mode, the control component controls the airway mechanism to intermittently depressurize multiple airbag units, and when performing depressurization operation on the target airbag unit, it synchronously drives the airway mechanism to generate a directional airflow pointing towards the patient's body surface in the area corresponding to the target airbag unit to ventilate the human body.

[0011] The beneficial effects of this invention are: This invention not only physically reduces local pressure by deflating the airbag unit, but also innovatively delivers directional airflow to the corresponding body surface simultaneously with decompression through a designed air path. This airflow directly removes moisture and excess heat from the skin surface, effectively drying and cooling the pressure-affected area.

[0012] Based on real-time data from the pressure sensor layer, the control component of this invention can accurately locate the specific airbag unit with abnormally high pressure and depressurize it. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a pressure damage monitoring device according to the present invention; Figure 2 This is a schematic diagram of the air circuit structure of a pressure damage monitoring device according to the present invention; Figure 3 This is a partial schematic diagram of a pressure damage monitoring device according to the present invention.

[0014] In the diagram: 1. Airbag unit; 2. Airbag layer; 3. Support plate; 4. Pressure sensor layer; 5. Pressure sensor; 6. Vent hole; 7. Vent channel; 8. Inlet channel; 9. Inflation main pipe; 10. Vent main pipe; 11. First solenoid valve; 12. Second solenoid valve; 13. Exhaust channel; 14. Air source; 15. Inflation branch pipe; 16. Inflation riser pipe; 17. Vent branch pipe; 18. Vent riser pipe. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0017] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0018] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0020] Example 1

[0021] refer to Figures 1 to 3 A pressure damage monitoring device, comprising: Airbag support layer 3, which is used to support the human body, includes multiple independent and independently controllable airbag units 1, and at least one row of ventilation holes 6 communicating with the external environment is provided on the airbag support layer 3. In practice, the airbag units are usually arranged in a rectangular array to cover the main weight-bearing area of ​​the mattress.

[0022] Pressure sensor layer 4 is located above airbag support layer 3 and is used to sense multi-point pressure data between the human body and the contact surface in real time. In practice, a flexible thin-film pressure sensor array can be laid on top of the airbag support layer 3 and fixed with straps.

[0023] An airway control mechanism is located below the airbag support layer 3 and is used to inflate, depressurize, and ventilate each airbag unit 1. The control component is electrically connected to the pressure sensor layer 4 and the gas path control mechanism, respectively. The device features both a monitoring and protection mode and an active ventilation mode. In monitoring and protection mode, the control component receives and analyzes the pressure data transmitted from the pressure sensor 5, and determines whether there is a risk of pressure injury to the patient's local tissues. When the risk level is determined to reach a preset threshold, an alarm mechanism is triggered. In active ventilation mode, the control component intermittently depressurizes the multi-stage airbag unit 1. When depressurizing the target airbag unit 1, the airway mechanism is synchronously driven to generate a directional airflow toward the patient's body surface in the corresponding area of ​​the target airbag unit 1.

[0024] In this embodiment, the airbag support layer 3 includes an airbag layer 2 and a support plate 3 arranged vertically. Multiple airbag units 1 constitute the airbag layer 2. The bottom of the support plate 3 is also provided with multiple ventilation channels 7 that communicate with the outside. The lower ends of the ventilation holes 6 located in the same row are connected through a ventilation channel 7 to form an airflow path.

[0025] In this embodiment, each airbag unit 1 is provided with an air intake channel 8 that runs vertically through it. The air intake end of the air intake channel 8 is connected to the air source 14, and the air outlet end is set towards the human body.

[0026] In practice, the interior of each airbag unit 1 is not solid, but has an air intake channel 8 that runs vertically through it. The air intake end of the air intake channel 8 is connected to the air path control mechanism, and its air outlet is set towards the human body.

[0027] Preferably, the outlet end of the air intake channel 8 is designed with a tapering structure to accelerate the outflow of air and form a more concentrated and powerful directional airflow.

[0028] In this embodiment, the pneumatic circuit mechanism includes: Air source 14 is located at the lower end of airbag support layer 3 and is electrically connected to control components. In practice, the air source 14 is a miniature silent air pump.

[0029] The inflation manifold 9 is connected to the outlet of the air source 14. A first solenoid valve 11 is installed on the inflation manifold 9 and is electrically connected to the control component. Multiple inflation branch pipes 15 are provided, and multiple inflation branch pipes 15 are correspondingly provided with multiple airbag units 1. Each inflation branch pipe 15 is connected to multiple airbag units 1 through multiple inflation riser pipes 16. The main ventilation pipe 10, the outlet end of the air source 14 and the inflation main pipe 9 are connected by a tee. A second solenoid valve 12 is installed on the main ventilation pipe 10 and is electrically connected to the control component. Multiple ventilation branch pipes 17 are provided, and multiple ventilation branch pipes 17 are correspondingly provided with multiple air bag units 1. Each ventilation branch pipe 17 is connected to the air intake end of the air intake channel 8 through multiple ventilation risers 18. The airbag unit 1 is equipped with an exhaust valve, and each ventilation branch pipe 17 and inflation branch pipe 15 is equipped with a third solenoid valve, which is electrically connected to the control component.

[0030] In practice, the control components are the brain of the device, such as the main control board with an integrated microprocessor (MCU).

[0031] In practice, the first solenoid valve and the second solenoid valve are used to switch the main working pipeline of the system.

[0032] In practice, each airbag unit 1 is also equipped with an exhaust valve (such as an electromagnetic exhaust valve) for independent pressure relief.

[0033] In this embodiment, each airbag unit 1 is also provided with multiple exhaust channels 13, the lower end of which passes through the support plate and communicates with the outside.

[0034] In this embodiment, the outlet end of the air intake channel 8 has a tapered structure.

[0035] Example 2

[0036] This embodiment provides a method for using a pressure damage prevention monitoring device, employing the pressure damage prevention monitoring device of Embodiment 1. The method includes the following steps: S1. Inflate airbag unit 1; S2. Pressure data of each contact point on the patient's body is monitored in real time through pressure sensor layer 4 and transmitted to the control component; S3. In monitoring and protection mode, the control component receives and analyzes pressure data, determines the risk level of pressure injury to the patient's local tissues, and triggers an alarm when the risk level reaches a preset threshold. S4. Medical staff depressurize the corresponding airbag unit 1. In this mode, the control component continuously receives pressure data from pressure sensor layer 4 and performs real-time analysis. Using built-in algorithm models (such as a pressure-time threshold-based model), the control component can determine whether there is a risk of pressure injury to the patient's local tissues. When the analysis determines that the risk level of a certain area reaches a preset threshold, the control component immediately triggers an alarm mechanism. The alarm can take the form of an audible and visual alarm, sending electronic information to the nurses' station, or highlighting the risk location on the device's display screen, thereby guiding medical staff to perform precise intervention.

[0037] S5. In active ventilation mode, the control component controls the airway mechanism to intermittently depressurize the multiple airbag units 1, and when performing depressurization operation on the target airbag unit 1, it synchronously drives the airway mechanism to generate a directional airflow pointing towards the patient's body surface in the area corresponding to the target airbag unit 1, so as to ventilate the human body.

[0038] In practice, the control component does not operate all airbag units 1 uniformly, but selectively depressurizes multiple airbag units 1 intermittently and alternately.

[0039] In practice, the third solenoid valve on the inflation branch pipe 15 corresponding to the target airbag unit 1 is closed to cut off inflation. The second solenoid valve on the main ventilation pipe is opened, and the third solenoid valve on the ventilation branch pipe corresponding to the target airbag unit is also opened. The air source 14 is then activated. At this time, the airflow generated by the air source no longer enters the main inflation pipe, but is guided to the main ventilation pipe, and then flows into the air intake channel inside the target airbag unit 1 through the corresponding ventilation branch pipe and ventilation riser pipe. The airflow is ejected at high speed from the converging outlet end, ultimately forming a directional airflow pointing towards the patient's body surface, directly acting on the body parts that need decompression, and is discharged through the ventilation holes on the airbag support layer, forming a circulating ventilation effect.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A pressure injury prevention monitoring device, characterized by, The device comprises: an airbag support layer for bearing a human body, the airbag support layer comprising a plurality of independent airbag units, and at least one row of air holes being arranged on the airbag support layer and being in communication with the external environment; a pressure sensor layer arranged above the airbag support layer and used for sensing the multi-point pressure data of the human body and the contact surface in real time; an air path control mechanism arranged below the airbag support layer and used for inflating, depressurizing and ventilating each airbag unit; a control assembly electrically connected with the pressure sensor layer and the air path control mechanism; wherein the device has a monitoring protection mode and an active ventilation mode: in the monitoring protection mode, the control assembly receives and analyzes the pressure data transmitted by the pressure sensor, and judges whether the local tissue of the patient has the risk of pressure injury, and when the risk level reaches the preset threshold, an alarm mechanism is triggered; in the active ventilation mode, the control assembly intermittently depressurizes the multiple rows of airbag units, and when the target airbag unit is depressurized, the air path mechanism is synchronously driven to generate a directional air flow directed to the patient's body surface in the corresponding area of the target airbag unit.

2. A pressure ulcer prevention monitoring apparatus according to claim 1, wherein The airbag support layer comprises an airbag layer and a support plate arranged above and below, a plurality of rows of airbag units constitute the airbag layer, a plurality of rows of air holes are arranged alternately with a plurality of rows of airbag units, and a plurality of ventilation channels in communication with the external environment are further arranged on the bottom of the support plate. The lower ends of the air holes in the same row are communicated through one ventilation channel.

3. A pressure ulcer prevention monitoring apparatus according to claim 2, wherein An air inlet channel penetrating through the airbag unit is arranged in each airbag unit, the air inlet end of the air inlet channel is connected with the air source, and the air outlet end is arranged towards the human body.

4. A pressure ulcer prevention monitoring apparatus according to claim 3, wherein The air path mechanism comprises: an air source arranged at the lower end of the airbag support layer, the air source being electrically connected with the control assembly; an inflation main pipe, the air inlet end of the inflation main pipe being in communication with the air outlet end of the air source, a first electromagnetic valve being arranged on the inflation main pipe, and the first electromagnetic valve being electrically connected with the control assembly; a plurality of inflation branch pipes, the air inlet ends of the plurality of inflation branch pipes being in communication with the air outlet end of the inflation main pipe, the plurality of inflation branch pipes being correspondingly arranged with the plurality of rows of airbag units, and each inflation branch pipe being communicated with the corresponding airbag unit through a plurality of inflation risers; a ventilation main pipe, the air inlet end of the ventilation main pipe, the air outlet end of the air source and the air inlet end of the inflation main pipe being communicated through a tee joint, a second electromagnetic valve being arranged on the ventilation main pipe, and the second electromagnetic valve being electrically connected with the control assembly; a plurality of ventilation branch pipes, the air inlet ends of the plurality of ventilation branch pipes being in communication with the air outlet end of the ventilation main pipe, the plurality of ventilation branch pipes being correspondingly arranged with the plurality of rows of airbag units, and each ventilation branch pipe being communicated with the air inlet end of the corresponding air inlet channel through a plurality of ventilation risers; wherein an exhaust valve is arranged on each airbag unit, and a third electromagnetic valve is arranged on each ventilation branch pipe and inflation branch pipe.

5. The pressure ulcer prevention monitoring apparatus of claim 3, wherein, A plurality of exhaust passages are arranged in each of the airbag units, and the lower ends of the exhaust passages penetrate the support plate and communicate with the outside.

6. The pressure ulcer prevention monitoring apparatus of claim 3, wherein, The outlet end of the air inlet passage is tapered.

7. A method of using a pressure injury prevention monitoring device, comprising: The method comprises the following steps by using the pressure injury monitoring device according to any one of claims 1 to 6: S1, inflating the airbag unit; S2, monitoring the pressure data of each contact part of the patient's body in real time through the pressure sensor layer and transmitting the pressure data to the control assembly; S3, in the monitoring protection mode, the control assembly receives and analyzes the pressure data, judges the risk level of the local tissue of the patient to suffer from pressure injury, and triggers an alarm when the risk level reaches a preset threshold; S4, the medical staff releases pressure through the corresponding airbag unit; S5, in the active ventilation mode, the control assembly controls the air path mechanism to intermittently release pressure on multiple airbag units, and synchronously drives the air path mechanism to generate directional air flow directed to the patient's body surface in the area corresponding to the target airbag unit when performing the pressure release operation on the target airbag unit, and ventilates the human body.

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