Novel non-invasive breathing machine mask pressure-resistant pad

By designing a novel pressure-resistant pad for a non-invasive ventilator mask, which utilizes an inner and outer ring-shaped pad driven by an air-permeable pad and an inflatable airbag to alternately contact the face, the problem of pressure injury caused by prolonged wear of a non-invasive ventilator mask is solved, thus protecting facial muscles.

CN224207195UActive Publication Date: 2026-05-08THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL
Filing Date
2025-02-08
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing non-invasive ventilator masks can easily cause pressure injuries to the patient's face when worn for extended periods.

Method used

A novel non-invasive ventilator mask pressure pad has been designed, including a connecting pad and a cushioning pad. The cushioning pad is equipped with an air-permeable pad, an inner annular groove, and an outer annular groove. The inner and outer annular pads are alternately extended to contact the patient's face by an inflatable airbag, which avoids prolonged pressure on a certain muscle group.

Benefits of technology

This effectively prevents prolonged pressure on the patient's facial muscles and reduces the occurrence of pressure injuries.

✦ Generated by Eureka AI based on patent content.

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Abstract

A pad body comprises a connecting pad and a buffering pad which are integrally arranged, the connecting pad is provided with an installation opening groove in the circumferential direction, the connecting side edge of a breathing mask can be clamped in the installation opening groove, and the side, away from the connecting pad, of the buffering pad is provided with a buffering opening groove in the circumferential direction. A breathable cushion is arranged in the buffer open groove, the buffer cushion is provided with an inner annular groove and an outer annular groove in the circumferential direction, the inner annular groove and the outer annular groove are arranged around the buffer open groove, an inner annular cushion is arranged in the inner annular groove, an outer annular cushion is arranged in the outer annular groove, and an inflatable air bag is arranged in the buffer cushion. According to the novel non-invasive ventilator mask anti-pressure pad, the inflatable air bags can be inflated or deflated alternately, so that the breathable pad, the outer annular pad and the inner annular pad are sequentially staggered to be in contact with the face of a patient, and damage caused by the fact that muscles of a certain part of the face of the patient are in an extruded state for a long time is effectively avoided.
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Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and in particular to a novel non-invasive ventilator mask pressure pad. Background Technology

[0002] When critically ill patients face severe respiratory distress and ventilation disorders, they need to use non-invasive ventilators for assisted ventilation according to their condition. After the patient wears the non-invasive ventilator mask, the ventilator mask is in contact with the face for too long and the headband pressure is too high, which can cause facial sores and inevitably lead to mechanical pressure injury. Usually, when wearing a non-invasive ventilator mask, a cut edgeless foam dressing is used as a padding layer to prevent mechanical pressure injury.

[0003] There are also methods to avoid pressure injuries by placing pressure-resistant pads on the patient's face, such as the patent application with authorization publication number CN211357293U entitled "A Novel Non-invasive Ventilator Mask", which includes a ventilator mask, a first mask body, a second mask body, and a headband. The first and second mask bodies are openable and sealable masks located in the mouth and nose area of ​​the main body of the ventilator mask. The edges of the ventilator mask are provided with a sealing buffer layer. The mouth and nose area of ​​the ventilator mask is provided with an openable and closable first mask body. The upper end of the first mask body is provided with an openable and closable second mask body. The upper, left, and right edges of the first mask body are provided with tenons. The connection between the ventilator mask and the first mask body is provided with a mortise. The upper end of the first mask body is provided with a mortise. The upper edge of the second mask body is provided with a tenon. The first and second mask bodies can be opened downwards by 90°.

[0004] However, existing non-invasive ventilator masks still have the following technical defects: when worn for extended periods, the contact surface between the mask and the patient's face can easily compress the face, potentially causing pressure injuries over time. Therefore, to meet the above-mentioned usage requirements, this invention designs a novel non-invasive ventilator mask anti-pressure pad to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a novel non-invasive ventilator mask pressure pad to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel non-invasive ventilator mask pressure-resistant pad includes a pad body. The pad body includes an integrally formed connecting pad and a buffer pad. The width of the connecting pad is smaller than the width of the buffer pad. The connecting pad has a mounting opening groove along its circumference, into which the connecting side of the ventilator mask can be snapped. The buffer pad has a buffer opening groove along its circumference on the side away from the connecting pad. A breathable pad is disposed within the buffer opening groove. The buffer pad has an inner annular groove and an outer annular groove along its circumference, surrounding the buffer opening groove. An inner annular pad is disposed within the inner annular groove, and an outer annular pad is disposed within the outer annular groove. An inflatable airbag is disposed within the buffer pad. The outer and inner annular pads are driven by the inflatable airbag to have an extended state and a retracted state. In the retracted state, the breathable pad is in contact with the wearer's face. In the extended state, the inner and outer annular pads are in contact with the wearer's face.

[0008] The aforementioned novel non-invasive ventilator mask pressure pad has multiple breathable pads, which are sequentially installed in the buffer opening groove.

[0009] The aforementioned novel non-invasive ventilator mask pressure pad has a bottom ventilation hole at the bottom of the breathable pad and side ventilation holes on both sides of the cushioning pad, with the bottom ventilation hole and the side ventilation hole connected together.

[0010] The aforementioned novel non-invasive ventilator mask pressure pad has multiple mounting holes in the buffer opening groove, which are arranged sequentially at intervals along the circumference of the buffer opening groove. An elastic ball is provided in each mounting hole, and part of the elastic ball extends out of the mounting hole.

[0011] The aforementioned novel non-invasive ventilator mask pressure pad has a connecting piece on the breathable pad, the connecting piece being located within the buffer opening groove, and the connecting piece being in contact with the elastic ball.

[0012] The aforementioned novel non-invasive ventilator mask pressure pad has an inflatable airbag disposed in both the inner and outer annular grooves, and an annular piece disposed on both the outer and inner annular pads. The annular piece is located in the inner or outer annular groove and is fixedly connected to the inflatable airbag.

[0013] The aforementioned novel non-invasive ventilator mask pressure pad has a first inflation port and a second inflation port on the cushioning pad. The first inflation port is connected to the inflatable airbag in the inner annular groove, and the second inflation port is connected to the inflatable airbag in the outer annular groove.

[0014] In the above technical solution, the novel non-invasive ventilator mask pressure-resistant pad provided by this utility model includes an integrally formed connecting pad and a buffer pad. The connecting pad has an installation opening groove along its circumference, and the connecting side of the breathing mask can be snapped into the installation opening groove, so that the breathing mask and the pad can be fixedly connected together, avoiding misalignment or displacement between the pad and the breathing mask. The buffer pad has a buffer opening groove along its circumference on the side away from the connecting pad, and a breathable pad is placed in the buffer opening groove. The buffer pad has an inner annular groove and an outer annular groove along its circumference, and the inner and outer annular grooves surround the buffer opening groove. An inner annular pad is placed in the inner annular groove, and an outer annular pad is placed in the outer annular groove. The outer and inner annular pads are driven by the inflation bag and have an extended state and a retracted state. In use, the inflation bag can be alternately inflated or deflated, so that the breathable pad, the outer annular pad, and the inner annular pad are in contact with the patient's face in an alternating manner, effectively avoiding damage to the muscles of a certain part of the patient's face caused by prolonged compression. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 Left view of the novel non-invasive ventilator mask pressure pad provided in this embodiment of the utility model;

[0017] Figure 2 A front view of the novel non-invasive ventilator mask pressure pad provided in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the buffer pad provided in an embodiment of the present utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Pad body; 11. Connecting pad; 12. Mounting opening groove; 2. Buffer pad; 21. Buffer opening groove; 22. Inner annular groove; 23. Outer annular groove; 24. Inflatable airbag; 25. Side vent; 26. Elastic ball; 27. First inflation port; 3. Ventilation pad; 31. Bottom vent; 32. Connecting piece; 4. Inner annular pad; 5. Outer annular pad; 6. Breathing mask; 61. Connecting side. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-3 As shown, this utility model provides a novel non-invasive ventilator mask pressure relief pad, including a pad body 1. The pad body 1 includes an integrally formed connecting pad 11 and a buffer pad 2. The width of the connecting pad 11 is smaller than the width of the buffer pad 2. The connecting pad 11 has a mounting opening groove 12 arranged circumferentially, and the connecting side 61 of the ventilator mask 6 can be snapped into the mounting opening groove 12. The buffer pad 2 has a buffer opening groove 21 arranged circumferentially on the side away from the connecting pad 11. An air-permeable pad 3 is disposed in the buffer opening groove 21. The buffer pad 2 is arranged circumferentially... It has an inner annular groove 22 and an outer annular groove 23, which surround the buffer opening groove 21. An inner annular pad 4 is provided in the inner annular groove 22, and an outer annular pad 5 is provided in the outer annular groove 23. An inflatable airbag 24 is provided in the buffer pad 2. The outer annular pad 5 and the inner annular pad 4 are driven by the inflatable airbag 24 and have an extended state and a retracted state. In the retracted state, the breathable pad 3 is in contact with the wearer's face. In the extended state, the inner annular pad 4 and the outer annular pad 5 are in contact with the wearer's face.

[0023] Specifically, the pad 1 is correspondingly set with the breathing mask 6, so that the breathing mask 6 can be installed on the pad 1. The pad 1 includes an integrally set connecting pad 11 and buffer pad 2. Both the connecting pad 11 and the buffer pad 2 are annular structures corresponding to the facial contour. The width of the connecting pad 11 is smaller than the width of the buffer pad 2. The side of the connecting pad 11 away from the buffer pad 2 is provided with a mounting opening groove 12 along the circumference. The mounting opening grooves 12 are arranged sequentially at intervals along the circumference of the connecting pad 11. The connecting side 61 of the breathing mask 6 is correspondingly set with the mounting opening groove 12. In use, the connecting side 61 of the breathing mask 6 can be inserted and fixed in the mounting opening groove 12 to realize the connection between the breathing mask 6 and the pad 1.

[0024] In this embodiment, a buffer opening groove 21 is provided on the side of the buffer pad 2 away from the connecting pad 11. The buffer opening groove 21 is arranged sequentially along the circumference of the buffer pad 2. Part of the breathable pad 3 is located inside the buffer opening groove 21, and another part is located outside the buffer opening groove 21. An inner annular groove 22 and an outer annular groove 23 are also provided on the side of the buffer pad 2 away from the connecting pad 11. Both the inner annular groove 22 and the outer annular groove 23 are arranged sequentially along the circumference of the buffer pad 2, with the inner annular groove 22 located on the innermost side. The buffer opening groove 21 is arranged around the inner annular groove 22, and the outer annular groove 23 is arranged around the buffer opening groove 21. An inner annular pad 4 is provided in the inner annular groove 22, and an outer annular pad 5 is provided in the outer annular groove 23. At the same time, an inflatable airbag 24 is provided in the buffer pad 2. The inflatable airbag 24 can be arranged in the inner annular groove 22 and the outer annular groove 23. The inflatable airbag 24 has an inflated state and a deflated state, corresponding to the extended state and the retracted state of the outer annular pad 5 and the inner annular pad 4. When the inflatable airbag 24 is in the deflated state, the outer annular pad 5 and the inner annular pad 4 are in the retracted state. In this state, the height of the inner annular pad 4 and the outer annular pad 5 outside the buffer pad 2 is less than the height of the breathable pad 3 outside the buffer pad 2. Thus, when the patient wears the breathing mask 6 and the pad body 1, the buffer pad 2 is in contact with the patient's face. When the inflatable airbag 24 is in the inflated state, the outer annular pad 5 and the inner annular pad 4 are in the extended state. In this state, the height of the inner annular pad 4 and the outer annular pad 5 outside the buffer pad 2 is greater than the height of the breathable pad 3 outside the buffer pad 2. Thus, when the patient wears the breathing mask 6 and the pad body 1, the patient's face is in contact with the inner annular pad 4 and the outer annular pad 5.

[0025] The novel non-invasive ventilator mask pressure-resistant pad provided by this utility model includes a pad body 1 comprising an integrally formed connecting pad 11 and a buffer pad 2. The connecting pad 11 has a mounting opening groove 12 along its circumference, and the connecting side 61 of the breathing mask 6 can be snapped into the mounting opening groove 12, thus fixing the breathing mask 6 and the pad body 1 together and preventing misalignment or displacement between the pad body 1 and the breathing mask 6. The buffer pad 2 has a buffer opening groove 21 along its circumference on the side away from the connecting pad 11, and a breathable pad 3 is disposed within the buffer opening groove 21. The connecting pad 11 has an inner annular shape along its circumference. The inner and outer annular grooves 22 and 23 surround the buffer opening groove 21. The inner annular groove 22 contains an inner annular pad 4, and the outer annular groove 23 contains an outer annular pad 5. The outer annular pad 5 and the inner annular pad 4 are driven by the inflatable airbag 24 and have extended and retracted states. During use, the inflatable airbag 24 can be inflated or deflated alternately. In this way, the breathable pad 3, the outer annular pad 5, and the inner annular pad 4 are alternately contacted with the patient's face, effectively preventing the muscles of a certain part of the patient's face from being compressed for a long time and causing damage.

[0026] In this embodiment, preferably, there are multiple breathable pads 3, which are sequentially installed in the buffer opening groove 21. The multiple breathable pads 3 are arranged sequentially along the buffer opening groove 21 to form an annular pad body 1 structure. With multiple breathable pads 3, when a certain breathable pad 3 is damaged during use, it can be replaced accordingly.

[0027] In this embodiment, preferably, the bottom of the breathable pad 3 is provided with a bottom vent 31, and the two sides of the buffer pad 2 are provided with side vents 25. The bottom vent 31 is connected to the side vents 25, and the side vents 25 are connected to the buffer opening groove 21. The bottom vent 31 penetrates the breathable pad 3. Thus, when the breathable pad 3 is installed in the buffer opening groove 21, the bottom vent 31 is connected to the buffer opening groove 21, and the buffer opening groove 21 is connected to the side vents 25, thereby forming a connected breathable structure and improving the breathability and heat dissipation effect of the breathable pad 3.

[0028] In this embodiment, preferably, the buffer opening groove 21 is provided with multiple mounting holes, which are arranged sequentially and spaced apart along the circumference of the buffer opening groove 21. An elastic ball 26 is provided in the mounting hole, with part of the elastic ball 26 extending out of the mounting hole. A connecting piece 32 is provided on the breathable pad 3, which is located in the buffer opening groove 21 and contacts the elastic ball 26. The elastic ball 26 is elastic, so during use, when the wearer's facial muscles move, the muscles will press against the breathable pad 3. The breathable pad 3 presses against the elastic ball 26 through the connecting piece 32. The elastic ball 26 is elastic, thus providing elastic cushioning for the breathable pad 3 and the connecting piece 32, thereby avoiding excessive pressure between the breathable pad 3 and the patient's facial muscles.

[0029] In this embodiment, preferably, an inflatable airbag 24 is provided in both the inner annular groove 22 and the outer annular groove 23, and an annular piece is provided on both the outer annular pad 5 and the inner annular pad 4. The annular piece is located in the inner annular groove 22 or the outer annular groove 23, and is fixedly connected to the inflatable airbag 24. When the inflatable airbag 24 is inflated, the inflatable airbag 24 pushes against the annular piece, thereby causing the outer annular pad 5 to extend out of the outer annular groove 23 and the inner annular pad 4 to extend out of the inner annular groove 22. Conversely, when the inflatable airbag 24 is deflated, the annular piece moves into the inner annular groove 22 and the outer annular groove 23, and the inner annular pad 4 slowly retracts into the inner annular groove 22, and the outer annular pad 5 slowly retracts into the outer annular groove 23. Thus, the height of the inner annular pad 4 and the outer annular pad 5 outside the buffer pad 2 is less than the height of the breathable pad 3 outside the buffer pad 2.

[0030] In this embodiment, preferably, the annular pad is provided with a first inflation port 27 and a second inflation port. The first inflation port 27 is connected to the inflatable airbag 24 in the inner annular groove 22, and the second inflation port is connected to the inflatable airbag 24 in the outer annular groove 23. The first inflation port 27 can be used to inflate or deflate the inflatable airbag 24 in the inner annular groove 22, and the second inflation port can be used to inflate or deflate the inflatable airbag 24 in the outer annular groove 23. Thus, during use, the inflatable airbag 24 in the inner annular groove 22 and the inflatable airbag 24 in the outer annular groove 23 are inflated or deflated. The airbags 24 can be in the same or different states. For example, the airbags 24 in the inner annular groove 22 and the outer annular groove 23 can be inflated or deflated at the same time. Alternatively, the airbag 24 in the inner annular groove 22 can be inflated while the airbag 24 in the outer annular groove 23 can be deflated, in which case the patient's face is only in contact with the inner annular pad 4. Or, the airbag 24 in the inner annular groove 22 can be deflated while the airbag 24 in the outer annular groove 23 can be inflated, in which case the patient's face is only in contact with the outer annular pad 5.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel non-invasive ventilator mask pressure-resistant pad, comprising a pad body, characterized in that, The pad includes an integrally formed connecting pad and a buffer pad. The width of the connecting pad is smaller than the width of the buffer pad. The connecting pad has a mounting opening groove along its circumference, and the connecting side of the breathing mask can be snapped into the mounting opening groove. The buffer pad has a buffer opening groove along its circumference on the side away from the connecting pad. A breathable pad is disposed in the buffer opening groove. The buffer pad has an inner annular groove and an outer annular groove along its circumference, which surround the buffer opening groove. An inner annular pad is disposed in the inner annular groove, and an outer annular pad is disposed in the outer annular groove. An inflatable airbag is disposed in the buffer pad. The outer and inner annular pads are driven by the inflatable airbag to have an extended state and a retracted state. In the retracted state, the breathable pad is in contact with the wearer's face. In the extended state, the inner and outer annular pads are in contact with the wearer's face.

2. The novel non-invasive ventilator mask pressure-resistant pad according to claim 1, characterized in that, There are multiple breathable pads, and the multiple breathable pads are installed sequentially in the buffer opening groove.

3. The novel non-invasive ventilator mask pressure-resistant pad according to claim 1, characterized in that, The bottom of the breathable pad is provided with a bottom vent hole, and the two sides of the cushioning pad are provided with side vent holes. The bottom vent hole is connected to the side vent holes.

4. The novel non-invasive ventilator mask pressure-resistant pad according to claim 1, characterized in that, The buffer opening groove is provided with a plurality of mounting holes, which are arranged sequentially at intervals along the circumference of the buffer opening groove. An elastic ball is provided in each mounting hole, and part of the elastic ball extends out of the mounting hole.

5. The novel non-invasive ventilator mask pressure-resistant pad according to claim 4, characterized in that, The breathable pad is provided with a connecting piece, which is located in the buffer opening groove and is in contact with the elastic ball.

6. The novel non-invasive ventilator mask pressure-resistant pad according to claim 1, characterized in that, The inflatable airbags are provided in both the inner and outer annular grooves. Annular pieces are provided on both the outer and inner annular pads. The annular pieces are located within the inner or outer annular grooves and are fixedly connected to the inflatable airbags.

7. The novel non-invasive ventilator mask pressure-resistant pad according to claim 1, characterized in that, The buffer pad is provided with a first inflation port and a second inflation port. The first inflation port is connected to the inflatable airbag in the inner annular groove, and the second inflation port is connected to the inflatable airbag in the outer annular groove.

Citation Information

Patent Citations

  • Novel noninvasive ventilator mask

    CN211357293U