Anti-entrapment respirator

Abstract

The present application belongs to the technical field of medical devices, and particularly relates to a pressure injury prevention respirator, which comprises a mask body, an extendable corrugated sleeve, a patch and a plurality of adjusting air sacs I. The mask body has a rim portion, the patch is arranged along the rim portion of the mask body, the top end of the extendable corrugated sleeve and the top end of the plurality of adjusting air sacs I are fixedly connected with the rim portion of the mask body, the bottom end of the extendable corrugated sleeve and the bottom end of the plurality of adjusting air sacs I are fixedly connected with the patch, the plurality of adjusting air sacs I are arranged along the circumference of the mask body, each adjusting air sac I is communicated with a ventilation hose I, and the end of the ventilation hose I away from the adjusting air sac I is communicated with an inflation balloon I. In the present application, the alternating inflation of the adjusting air sacs I avoids the long-time compression of the mask body on the same part, thereby preventing pressure injury, and the extendable corrugated sleeve can prevent the massive leakage of oxygen and avoid the interruption of oxygen supply.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a pressure injury prevention respirator. Background Technology

[0002] Non-invasive ventilation, also known as non-invasive positive pressure ventilation, is used clinically to treat sleep apnea syndrome (SAS) and related diseases. When using a non-invasive ventilator, the machine is connected to the patient via a mouth / nose mask, and the machine provides pressure support for ventilation. Because the oxygen mask of a non-invasive ventilator is secured to the patient's face with straps, and the mask itself has its own weight, plus the weight of the oxygen tubing, prolonged wear can easily lead to pressure sores on the patient's face, causing pressure injuries.

[0003] Currently, common solutions to reduce pressure injury include loosening the oxygen mask every 4 hours for patients using non-invasive ventilators continuously, or using dressings to prevent pressure injury. Loosening the mask every 4 hours can lead to oxygen leakage and interruption of oxygen supply, making it unsuitable for patients with respiratory failure. Using dressings to prevent pressure injury requires frequent dressing changes, increasing patient costs and being more cumbersome. Summary of the Invention

[0004] The present invention aims to provide a pressure-resistant respirator to address the problem that oxygen masks in non-invasive ventilators can easily cause pressure injuries to the patient's face.

[0005] To achieve the above objectives, the present invention provides a respirator for preventing pressure injuries, comprising a mask body, a telescopic corrugated sleeve, a patch, and several adjustable airbags I. The mask body has an edge portion, the patch is disposed along the edge portion of the mask body, the top ends of the telescopic corrugated sleeve and the several adjustable airbags I are fixedly connected to the edge portion of the mask body, the bottom ends of the telescopic corrugated sleeve and the several adjustable airbags I are fixedly connected to the patch, the several adjustable airbags I are arranged circumferentially along the mask body, each adjustable airbag I is connected to a ventilation hose I, and the end of the ventilation hose I away from the adjustable airbag I is connected to an inflatable airbag I.

[0006] The working principle and beneficial effects of this solution are as follows: After the oxygen mask is worn, the patch adheres to the patient's facial skin. Adjustable airbag I and the telescopic corrugated sleeve are compressed between the patch and the edge of the oxygen mask. Squeezing inflatable airbag I causes the corresponding adjustable airbag I to expand and increase in volume, thereby pushing the corresponding part of the mask body upwards, relieving pressure on the patient's face. In this way, the adjustable airbags I expand alternately, lifting the corresponding parts of the mask body and adjustable airbag I, changing the pressure point on the patient's face, thus avoiding prolonged pressure on the same area and preventing pressure injuries. Furthermore, when the mask body is lifted, the telescopic corrugated sleeve changes length accordingly, preventing significant oxygen leakage and interruption of oxygen supply. This has minimal or no impact on the patient's blood oxygen saturation.

[0007] Optionally, it also includes a fixing strap. The mask body is provided with a D-ring for the fixing strap to pass through. The fixing strap is provided with a male hook and loop fastener and a female hook and loop fastener. After the fixing strap passes through the D-ring, the male hook and loop fastener and the female hook and loop fastener are attached together. The fixing strap is provided with a double-layer section. An adjustable airbag II is provided in the double-layer section. The adjustable airbag II is connected to a ventilation hose II. The end of the ventilation hose II away from the adjustable airbag II is connected to an inflatable airbag II. The inflatable airbag II is initially in a compressed state, and the adjustable airbag II is initially in an inflated state.

[0008] In this design, after the airbag II is deflated, the upper and lower layers of the double-layer section come closer together, the effective length of the double-layer section increases, the tension of the fixing strap on the mask body decreases, and in conjunction with the inflation of the airbag I, the mask body is more easily lifted by the airbag I.

[0009] Optionally, it also includes a compression assembly for compressing inflatable bladder I and / or inflatable bladder II. The compression assembly includes a housing with a partition plate inside the housing, which divides the internal space of the housing into several compression chambers. Each compression chamber is provided with a compression plate and a drive unit for driving the compression plate to rise and fall. The side wall of the compression chamber is provided with an insertion port for inserting inflatable bladder I or inflatable bladder II.

[0010] In this solution, a driving component is used to drive the compression plate to rise and fall, thereby compressing and releasing the inflatable balloon I and / or inflatable balloon II, and thus adjusting the volume of inflatable balloon I and / or inflatable balloon II. This avoids nurses or patients' family members from manually adjusting the volume of inflatable balloon I and / or inflatable balloon II, making the operation convenient.

[0011] Optionally, the extrusion assembly further includes a controller and a control panel. The control panel and several driving components are electrically connected to the controller. The control panel is used to input instructions to the controller, and the controller controls the driving components to work according to the received instructions.

[0012] In this solution, a start command is input on the control panel, and the controller controls the driving mechanism to operate periodically, for example, every 4 hours. During operation, in a specific sequence, the driving mechanism corresponding to inflatable balloon I drives the compression plate to move downwards, compressing inflatable balloon I. This causes the regulating balloon I to inflate according to a certain pattern (which can be set via the control panel), lifting the mask body and thus relieving the pressure of the mask body on the patient's face, thereby preventing pressure injuries. During this process, the driving mechanism corresponding to inflatable balloon II drives the compression plate to move upwards, allowing gas from the regulating balloon II to flow into it. This increases the effective length of the double-layer section, reducing the tension exerted by the fixing strap on the mask body and making it easier for the mask body to be lifted. After the mask body has been lifted for a certain period of time (which can be set via the control panel), nurses or patients' families can avoid manually controlling the driving mechanism periodically, reducing their workload and preventing situations where nurses or patients' families forget to control the driving mechanism.

[0013] Optionally, the patch is a flexible patch.

[0014] In this approach, the flexible patch is easily deformable, allowing it to better conform to the patient's face. Furthermore, after the flexible patch is applied to the patient's face, the nurse can use medical tape to secure it in place.

[0015] Optionally, the flexible patch has an adhesive layer on the side away from the telescopic corrugated sleeve.

[0016] In this approach, an adhesive layer is used to fix the flexible patch onto the patient's face.

[0017] Optionally, the mask body is provided with a connecting tube through which a cotton swab can pass, and a sealing cap is threaded to the end of the connecting tube away from the mask body.

[0018] In this procedure, the nurse or patient's family member removes the sealing cap, inserts a water-soaked cotton swab through the connecting tube into the mask body, and moistens the patient's lips, thereby relieving the patient's thirst. This avoids the need to remove and put on the mask body, minimizes oxygen leakage, and is easy to operate.

[0019] Optionally, it also includes a connecting tube, one end of which can be threaded to a connecting pipe, and the other end of the connecting tube is provided with a flexible sealing membrane. A through hole is opened in the middle of the flexible sealing membrane, and an elastic ring is fixedly connected at the through hole. The inner diameter of the elastic ring is smaller than the outer diameter of the cotton swab.

[0020] In this procedure, after removing the sealing cap, a cotton swab dipped in water is passed through the connecting tube, and the connecting tube is connected to the connecting tube. Thus, during the process of moistening the patient's lips, oxygen will not leak out through the connecting tube, further reducing the amount of oxygen leakage.

[0021] Optionally, it also includes a support balloon for supporting the oxygen tubing.

[0022] In this solution, a support balloon is used to support the oxygen tube, preventing the weight of the oxygen tube from pulling on the mask body, thereby reducing the pressure on the patient's face. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a pressure-resistant respirator according to Embodiment 1 of the present invention;

[0024] Figure 2 This is a side view of the mask body in Embodiment 1 of the present invention (when the adjustable airbag I at the top of the mask body is inflated);

[0025] Figure 3 This is a schematic diagram of the internal structure of the mask body in Embodiment 1 of the present invention;

[0026] Figure 4 This is a schematic diagram of the fixing strap in Embodiment 1 of the present invention;

[0027] Figure 5 This is a longitudinal sectional view of the box body in Embodiment 1 of the present invention;

[0028] Figure 6 This is a schematic diagram of the connecting pipe in Embodiment 1 of the present invention;

[0029] Figure 7 This is a schematic diagram of the extrusion assembly in Embodiment 2 of the present invention. Detailed Implementation

[0030] The following detailed description illustrates the specific implementation method:

[0031] The markings in the accompanying drawings include: oxygen tube 1, mask body 2, edge 210, fixing strap 3, double-layer section 310, telescopic corrugated sleeve 4, patch 5, support balloon 6, adjusting airbag I 7, ventilation hose I 8, inflatable balloon I 9, D-ring 10, male side of Velcro 11, female side of Velcro 12, adjusting airbag II 13, ventilation hose II 14, inflatable balloon II 15, box body 16, partition plate 17, compression chamber 18, compression plate 19, drive component 20, connecting pipe 21, sealing cap 22, connecting pipe 23, flexible sealing membrane 24, elastic ring 25, cotton swab 26, controller 27, control panel 28.

[0032] Example 1

[0033] This embodiment is basically as follows: Figure 1 , Figure 2 and Figure 3As shown: A pressure-resistant respirator includes an oxygen tube 1, a mask body 2, a fixing strap 3, a telescopic corrugated sleeve 4, a patch 5, a support balloon 6, a compression assembly, and several adjustable airbags 1 7. The support balloon 6 supports the oxygen tube 1. Specifically, the support balloon 6 is placed on the patient's bed, the oxygen tube 1 is placed on the support balloon 6, and the oxygen tube 1 is fixed to the support balloon 6 using medical tape. In this way, the support balloon 6 supports the oxygen tube 1, preventing the oxygen tube 1 from pulling on the mask body 2, thereby reducing the pressure of the mask body 2 on the patient's face.

[0034] The mask body 2 has an edge portion 210, and a patch 5 is disposed along the edge portion 210 of the mask body 2. The patch 5 is a flexible patch 5; in this embodiment, the patch 5 is made of silicone. The top ends of the telescopic corrugated sleeve 4 and several adjustable airbags I7 are fixedly connected to the edge portion 210 of the mask body 2, and the bottom ends of the telescopic corrugated sleeve 4 and several adjustable airbags I7 are fixedly connected to the patch 5. Several adjustable airbags I7 are arranged circumferentially along the mask body 2; each adjustable airbag I7 is connected to a ventilation hose I8, and the end of the ventilation hose I8 away from the adjustable airbag I7 is connected to an inflatable airbag I9. In this embodiment, the number of adjustable airbags I7 is four; the telescopic corrugated sleeve 4 is made of silicone or rubber.

[0035] The mask body 2 has a D-ring buckle 10 through which the fixing strap 3 passes. The fixing strap 3 has a male hook and loop fastener 11 and a female hook and loop fastener 12 sewn onto it. After the fixing strap 3 passes through the D-ring buckle 10, the male hook and loop fastener 11 and the female hook and loop fastener 12 are adhered, thereby fixing the mask body 2 to the patient's face (the fixing strap 3 wraps around the patient's head). Figure 4 As shown, the fixing belt 3 has a double-layer section 310, and there are two double-layer sections 310 on each fixing belt 3. The double-layer section 310 includes an upper belt and a lower belt. An adjusting airbag II13 is provided between the upper belt and the lower belt. The adjusting airbag II13 is connected to a ventilation hose II14. The end of the ventilation hose II14 away from the adjusting airbag II13 is connected to an inflatable airbag II15. The inflatable airbag II15 is initially in a compressed state, and the adjusting airbag II13 is initially in an inflated state.

[0036] The extrusion assembly is used to extrude inflatable bladders I9 and II15. The extrusion assembly includes a housing 16, combined with... Figure 5As shown, the housing 16 is equipped with a partition plate 17, which divides the internal space of the housing 16 into several compression chambers 18. In this embodiment, there are eight compression chambers 18. Each compression chamber 18 is equipped with a compression plate 19 and a drive component 20 for driving the compression plate 19 to rise and fall. The side wall of the compression chamber 18 has an insertion port for inserting either the inflatable balloon I 9 or the inflatable balloon II 15. In this embodiment, the drive component 20 is an electric push rod. Initially, the compression plate 19 corresponding to the inflatable balloon II 15 is in a state of compressing the inflatable balloon II 15, thereby causing the regulating balloon II 13 to be in an inflated state.

[0037] The face mask body 2 is provided with a connecting tube 21, through which a cotton swab 26 can pass. A sealing cap 22 is threadedly connected to the end of the connecting tube 21 furthest from the face mask body 2. Additionally, the anti-pressure injury respirator in this embodiment also includes a connecting tube 23, combined with... Figure 6 As shown, one end of the connecting tube 23 can be threaded to the connecting tube 21, and the other end of the connecting tube 23 is provided with a flexible sealing membrane 24. A through hole is opened in the middle of the flexible sealing membrane 24, and an elastic ring 25 is bonded to the through hole. The inner diameter of the elastic ring 25 is smaller than the outer diameter of the cotton swab 26.

[0038] In use, first fasten the mask body 2 onto the patient's face, then lift the mask body 2 and use medical tape to fix the patch 5 to the patient's face. Next, wrap the fixing strap 3 around the patient's head and pass the end of the fixing strap 3 through the corresponding D-ring 10. Then, use the adhesion of the male side 11 and the female side 12 of the Velcro to press and fix the mask body 2 to the patient's face. At this time, the patch 5 is attached to the patient's facial skin, and the adjusting airbag I 7 and the telescopic corrugated sleeve 4 are compressed between the patch 5 and the edge 210 of the mask body 2. The mask body 2 has a good seal with the patient's facial skin. Oxygen is then supplied to the patient through the oxygen tube 1.

[0039] After a period of time, the nurse or a patient's family member activates the drive unit 20 corresponding to a certain adjusting airbag I7. The drive unit 20 drives the compression plate 19 to descend, and the compression plate 19 compresses the corresponding inflatable airbag I9. The gas inside the inflatable airbag I9 flows into the corresponding adjusting airbag I7 through the ventilation hose I8. The adjusting airbag I7 expands and its volume increases, lifting the corresponding part of the mask body 2. The mask body 2 is tilted, reducing the pressure area on the patient's face and allowing the corresponding part of the patient's face to relax. At the same time, the nurse or a patient's family member activates the drive unit 20 corresponding to adjusting airbag II13. The drive unit 20 drives the compression plate 19 to rise, and the compression plate 19 no longer compresses the inflatable airbag II15. The gas inside the adjusting airbag II13 flows into the corresponding inflatable airbag II15 through the ventilation hose II14. The volume of the adjusting airbag II13 decreases, the effective length of the double-layer section 310 of the fixing strap 3 increases, the tension on the mask body 2 decreases, and it is easier for the mask body 2 to be lifted. During the process of the mask body 2 being lifted, the telescopic corrugated sleeve 4 extends as the mask body 2 moves, thereby improving the sealing of the space between the mask body 2 and the patient's mouth and nose, and thus preventing a large amount of oxygen from leaking out of the mask body 2.

[0040] When a regulating airbag I7 inflates, its corresponding drive unit 20 causes the compression plate 19 to rise. The compression plate 19 then stops compressing the regulating airbag I7. Under the tension of the fixing strap 3, the edge 210 of the mask body 2 applies pressure to the regulating airbag I7, causing the gas inside the regulating airbag I7 to flow back into the corresponding inflatable airbag I9, and the regulating airbag I7 and inflatable airbag I9 return to their original positions. Then, the nurse or patient's family member activates the drive unit 20 corresponding to the next regulating airbag I7, causing all four regulating airbags I7 to inflate sequentially. This causes the four parts of the mask body 2 corresponding to the regulating airbags I7 to be lifted sequentially, changing the pressure points on the patient's face and preventing pressure injuries.

[0041] In this embodiment, the regulating airbags I7 inflate one by one; in another embodiment, the regulating airbags I7 can inflate in pairs. Essentially, both methods force a portion of the mask body 2 to suspend, thereby reducing the pressure area on the patient's face and allowing unpressed areas to relax, thus preventing pressure injuries. Furthermore, in this embodiment, the telescopic corrugated sleeve 4 prevents excessive oxygen leakage from the mask body 2, thus avoiding oxygen supply interruption. After the four regulating airbags I7 inflate in an orderly manner, the drive unit 20 corresponding to the regulating airbag II 13 is activated, the corresponding compression plate 19 descends, compressing the inflatable airbag II 15. The gas inside the inflatable airbag II 15 flows back into the corresponding regulating airbag II 13, the double-layer section 310 of the fixing strap 3 is supported, the effective length of the fixing strap 3 decreases, and the tension on the mask body 2 is restored.

[0042] When the patient's lips need to be moistened during the wearing of the mask body 2, the nurse or family member removes the sealing cap 22, then picks up the connecting tube 23 with a moistened cotton swab 26 attached. The cotton swab 26 is passed through the connecting tube 21, and the connecting tube 23 is threaded onto the connecting tube 21. The nurse or family member holds the end of the cotton swab 26 protruding from the mask body 2 and moves the cotton swab 26 to moisten the patient's lips. Thus, in this embodiment, the patient's lips can be moistened without removing the mask body 2, relieving the patient's thirst. The operation is simple and there is no significant oxygen leakage.

[0043] Example 2

[0044] The difference between this embodiment and Embodiment 1 is that: Figure 7 As shown, the extrusion assembly in this embodiment also includes a controller 27 and a control panel 28. The control panel 28 and the eight drive units 20 are all electrically connected to the controller 27. The control panel 28 is used to input instructions to the controller 27, and the controller 27 controls the drive units 20 to work according to the received instructions.

[0045] In this embodiment, the nurse can input instructions such as the working interval and working sequence of the drive unit 20 on the control panel 28. The controller 27 controls the corresponding drive unit 20 to work according to the above instructions, thereby realizing the automatic inflation and deflation of the regulating airbag I 7 and the regulating airbag II 13, reducing the workload of the nurse.

[0046] Example 3

[0047] The difference between this embodiment and Embodiment 1 is that in this embodiment, the bottom surface of the patch 5 is provided with an adhesive layer, and a release paper is covered on the adhesive layer. In use, the release paper is removed, and the patch 5 is adhered to the patient's facial skin using the adhesive layer, preventing air leakage due to gaps between the patch 5 and the patient's facial skin.

[0048] The above are merely embodiments of the present invention. The invention is not limited to the fields covered by these embodiments. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can improve and implement this solution based on the guidance provided in this application and their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness or practicality of the invention. The scope of protection claimed in this application should be determined by the content of its claims. The specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A respirator for preventing pressure injuries, comprising a mask body, characterized in that: It also includes a telescopic corrugated sleeve, a patch, and several adjustable airbags I. The mask body has an edge portion, the patch is provided along the edge portion of the mask body, the top of the telescopic corrugated sleeve and several adjustable airbags I are fixedly connected to the edge portion of the mask body, the bottom of the telescopic corrugated sleeve and several adjustable airbags I are fixedly connected to the patch, and several adjustable airbags I are arranged circumferentially along the mask body. Each adjustable airbag I is connected to a ventilation hose I, and the end of the ventilation hose I away from the adjustable airbag I is connected to an inflatable airbag I. It also includes a fixing strap. The mask body is provided with a D-shaped buckle for the fixing strap to pass through. The fixing strap is provided with a male hook and loop fastener and a female hook and loop fastener. After the fixing strap passes through the D-shaped buckle, the male hook and loop fastener and the female hook and loop fastener are attached together. The fixing strap is provided with a double-layer section. An adjustable airbag II is provided in the double-layer section. The adjustable airbag II is connected to a ventilation hose II. The end of the ventilation hose II away from the adjustable airbag II is connected to an inflatable airbag II. The inflatable airbag II is initially in a compressed state, and the adjustable airbag II is initially in an inflated state.

2. The anti-pressure injury respirator according to claim 1, characterized in that: It also includes a compression assembly for compressing inflatable bladder I and / or inflatable bladder II. The compression assembly includes a housing with a partition plate inside the housing. The partition plate divides the internal space of the housing into several compression chambers. Each compression chamber is equipped with a compression plate and a drive unit for driving the compression plate to rise and fall. The side wall of the compression chamber is provided with an insertion port for inserting inflatable bladder I or inflatable bladder II.

3. The anti-pressure injury respirator according to claim 2, characterized in that: The extrusion assembly also includes a controller and a control panel. The control panel and several driving components are electrically connected to the controller. The control panel is used to input instructions to the controller, and the controller controls the driving components to work according to the received instructions.

4. The anti-pressure injury respirator according to claim 1, characterized in that: The patch is a flexible patch.

5. The anti-pressure injury respirator according to claim 4, characterized in that: An adhesive layer is provided on the side of the flexible patch away from the telescopic corrugated sleeve.

6. The anti-pressure injury respirator according to claim 1, characterized in that: The face mask body is provided with a connecting tube through which a cotton swab can pass, and a sealing cap is threaded to the end of the connecting tube away from the face mask body.

7. The anti-pressure injury respirator according to claim 6, characterized in that: It also includes a connecting tube, one end of which can be threaded to a connecting pipe, and the other end of the connecting tube is provided with a flexible sealing membrane. A through hole is opened in the middle of the flexible sealing membrane, and an elastic ring is fixedly connected to the through hole. The inner diameter of the elastic ring is smaller than the outer diameter of the cotton swab.

8. The anti-pressure injury respirator according to claim 1, characterized in that: It also includes a support balloon for supporting the oxygen tubing.

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