An oxygen inhalation mask suitable for hyperbaric oxygen chamber

CN117205025BActive Publication Date: 2026-07-03CHENGDU MILITARY GENERAL HOSPITAL OF PLA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU MILITARY GENERAL HOSPITAL OF PLA
Filing Date
2023-10-12
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing hyperbaric oxygen chamber masks may cause skin redness and swelling when used by patients with sensitive skin, and lack oxygen flow rate regulation function, affecting the user experience of elderly patients.

Method used

An oxygen inhalation mask was designed, which includes an oxygen intake device and an exhaust device. By adjusting the oxygen concentration and flow rate, a gauze layer is provided to stabilize the skin condition. Temperature sensors and heating wires are used to keep the mask temperature consistent and prevent water vapor from forming.

Benefits of technology

It improves the practicality of the mask, adapts to the needs of different patients, stabilizes skin condition, prevents oxygen concentration from decreasing, and enhances the user experience for elderly patients.

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Abstract

This invention discloses an oxygen mask suitable for hyperbaric oxygen chambers, relating to the field of medical device technology. The mask includes a breathing mask with a nose clip fixedly connected to its outer surface and elastic bands fixedly connected to the sides of the outer surface. An exhaust device is fixedly connected to the inside of the mask, and an oxygen inlet device is fixedly connected to its bottom. An air inlet connector is fixedly connected to the bottom of the oxygen inlet device. Exhaust devices are symmetrically arranged on both sides of the oxygen inlet device. A heating layer is fixedly connected to the back of the mask, with a temperature sensor fixedly connected to the middle of the outer surface of the heating layer. A gauze layer is fixedly connected to the sides of the outer surface of the heating layer, and a water bladder is disposed inside the gauze layer. This product design allows for easier use by elderly patients with weak spontaneous breathing by slowing the oxygen flow rate, and also allows for the use of saline solution to stabilize the skin condition of patients with sensitive skin, thus facilitating use by these patients.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an oxygen mask suitable for use in hyperbaric oxygen chambers. Background Technology

[0002] A hyperbaric oxygen chamber is a specialized medical device for hyperbaric oxygen therapy. Based on the pressurization medium, it is divided into air-pressurized chambers and pure oxygen-pressurized chambers. Hyperbaric oxygen chambers have a wide range of applications, primarily used clinically for the treatment of anaerobic infections, carbon monoxide poisoning, air embolism, decompression sickness, hypoxic-ischemic encephalopathy, traumatic brain injury, and cerebrovascular diseases. An oxygen mask is a device that transfers oxygen from a storage tank to the lungs. There are various types, including medical oxygen masks and civilian aviation oxygen masks, which play an important role in assisting in disease treatment and protecting the safety of flight attendants. Hyperbaric oxygen therapy involves breathing pure oxygen in an environment exceeding one atmosphere of pressure. Ordinary oxygen inhalation occurs at one atmosphere of pressure, and the inhaled oxygen is not pure; the oxygen concentration and pressure are lower than in hyperbaric oxygen therapy, thus requiring the use of a hyperbaric oxygen chamber.

[0003] The existing oxygen masks for hyperbaric oxygen chambers are not very practical. When used by patients with sensitive skin, the contact area between the mask and the patient's skin may cause redness and swelling. When used by elderly patients, whose spontaneous breathing is weaker, the oxygen flow rate needs to be slowed down to facilitate breathing. However, the existing masks lack the function of adjusting the oxygen flow rate, which affects the use by patients. Therefore, we have proposed an oxygen mask suitable for hyperbaric oxygen chambers to solve the above-mentioned problems. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides an oxygen mask suitable for hyperbaric oxygen chambers. It is highly practical, increasing the oxygen intake under existing oxygen supply mechanisms to assist patients' breathing. It also slows down the oxygen flow rate, making it convenient for elderly patients with weak spontaneous breathing. Furthermore, it utilizes saline solution to stabilize the skin condition of patients with sensitive skin, thus facilitating their use.

[0005] The technical solution of this invention is:

[0006] An oxygen inhalation mask suitable for a hyperbaric oxygen chamber includes a breathing mask, a nose clip fixedly connected to the outer surface of the breathing mask, elastic bands fixedly connected to the sides of the outer surface of the breathing mask, an exhaust device fixedly connected to the inside of the breathing mask, an oxygen inlet device fixedly connected to the bottom of the breathing mask, an air inlet connector fixedly connected to the bottom end of the oxygen inlet device, exhaust devices symmetrically arranged on both sides of the oxygen inlet device, a heating layer fixedly connected to the back of the breathing mask, a temperature sensor fixedly connected to the middle of the outer surface of the heating layer, a gauze layer fixedly connected to the sides of the outer surface of the heating layer, and a water bladder disposed inside the gauze layer.

[0007] The working principle of the above technical solution is as follows:

[0008] When using the mask, place the elastic band around the patient's head, then put the mask on the patient's face, ensuring the gauze layer adheres to the patient's skin. After wearing the mask, open the air inlet connector to allow oxygen to enter the mask through the oxygen inlet device for the patient's breathing. The oxygen concentration can be adjusted using the oxygen inlet device to suit different patients' physical conditions. Exhaled air is expelled through the exhaust device to prevent outside air from entering the mask and affecting the oxygen concentration inside. If a patient with sensitive skin experiences skin discomfort after wearing the mask, puncture the water bladder inside the gauze layer. The water bladder contains saline solution, which is absorbed by the gauze layer, allowing the saline solution to penetrate and coat the area where the mask contacts the patient's skin, stabilizing the skin condition. When the mask is worn for an extended period, the temperature difference between the exhaled air and the mask can cause condensation. A temperature sensor detects the temperature of the exhaled air, and an electric heating wire inside the heating layer transmits the signal to the heating wire to heat the mask until the temperature matches that of the exhaled air, preventing condensation.

[0009] In a further technical solution, the oxygen supply device includes an oxygen supply pipe, the outer surface of which is fixedly connected to the inside of the breathing mask, a ventilation hose is fixedly connected to the middle of the inside of the oxygen supply pipe, and an oxygen concentration detector is fixedly connected to the inside of the oxygen supply pipe.

[0010] The ventilation hose is designed to increase the gas pressure inside the oxygen supply tube by squeezing it, thus facilitating assisted breathing for the patient.

[0011] In a further technical solution, a rotating ball is rotatably connected to the inner wall of the oxygen inlet pipe, an oxygen supply mechanism is fixedly connected inside the oxygen inlet pipe, and a first through hole is opened on the outer surface of the oxygen inlet pipe, the first through hole being linearly arranged along the outer surface of the oxygen inlet pipe.

[0012] Oxygen enters the oxygen inlet pipe through the rotating ball. The gas passes through the grooves on the surface of the rotating ball, and the gas flow drives the rotating ball to rotate, so that the oxygen enters the interior of the oxygen inlet pipe evenly.

[0013] In a further technical solution, a movable rod is slidably connected to the middle of the top of the oxygen inlet tube. The outer surface of the movable rod penetrates the oxygen inlet tube and extends into the inner cavity. A movable plate is fixedly connected to the bottom end of the movable rod. The outer surface of the movable plate is pressed and adapted to the inner surface of the oxygen inlet tube. A first spring is fixedly connected to the outer surface of the movable rod. The output end of the first spring is fixedly connected to the top of the oxygen inlet tube.

[0014] The first spring and the movable plate are installed. The movable plate moves upward under the action of air pressure, so that the movable plate moves above the first through hole. Oxygen enters the interior of the breathing mask through the first through hole and provides oxygen at the same time as the oxygen supply mechanism, increasing the amount of oxygen entering and helping the patient breathe.

[0015] In a further technical solution, the oxygen supply mechanism includes an oxygen supply shell, the outer surface of which penetrates the oxygen inlet pipe and extends to the outside, and a second through hole is provided on the outer surface of the oxygen supply shell, the second through hole being linearly arranged along the outer surface of the oxygen supply shell.

[0016] Under normal patient use, oxygen enters the oxygen supply housing through the second through-hole and flows into the breathing mask at a normal oxygen flow rate to enable the patient to breathe.

[0017] In a further technical solution, a cylindrical shell is fixedly connected to the inner surface of the oxygen supply shell, and a plurality of sleeve holes are provided on the outer surface of the cylindrical shell. A sliding baffle is slidably connected to the inner surface of the sleeve holes, and an insert rod is sleeved inside the cylindrical shell. The outer surface of the insert rod is pressed and adapted to the outer surface of the sliding baffle.

[0018] The sliding baffle is pushed outward by the insert rod, and oxygen enters the oxygen supply housing through the second through hole. The oxygen flow rate is greatly slowed down by the obstruction of the sliding baffle, which makes it convenient for elderly patients to use.

[0019] In a further technical solution, the exhaust device includes an exhaust horn pipe, the outer surface of which penetrates the breathing mask, a fixed ventilating plate is fixedly connected to the inner surface of the exhaust horn pipe, a telescopic rod is fixedly connected to the middle of the outer surface of the fixed ventilating plate, and a second spring is sleeved on the outer surface of the telescopic rod.

[0020] With the addition of a second spring, after the patient completes an exhalation, the spring force can drive the conical column back to its original position, preventing outside air from entering the breathing mask and affecting the oxygen content inside the mask.

[0021] In a further technical solution, a tapered column is fixedly connected to the output end of the telescopic rod, the outer surface of the tapered column is pressed and adapted to the inner surface of the exhaust horn pipe, the end of the second spring is fixedly connected to the outer surface of the fixed vent plate, and the end of the second spring away from the fixed vent plate is fixedly connected to the outer surface of the tapered column.

[0022] During exhalation, the patient's exhaled air passes through the fixed breathable plate via the conical column. Because the air pressure inside the breathing mask is greater than the outside air pressure, the conical column moves outward, the telescopic rod and the second spring extend, and the exhaled air is discharged to the outside through the gap between the conical column and the exhaust horn.

[0023] The beneficial effects of this invention are:

[0024] 1. The oxygen supply device can, on the one hand, use the ventilation hose, moving plate, and first spring to allow oxygen to enter the oxygen mask through the first through hole, thereby increasing the amount of oxygen entering the mask under the original oxygen supply mechanism to help patients with assisted breathing. On the other hand, it can make it easier for elderly patients with weak spontaneous breathing to use by slowing down the oxygen flow rate.

[0025] 2. Through the exhaust device, the cooperation between the conical column, the second spring and the telescopic rod can prevent air from the outside environment from entering the inside of the breathing mask during breathing, thus preventing it from affecting the oxygen concentration inside the breathing mask and improving the effectiveness of the device.

[0026] 3. The device uses a temperature sensor and a heating wire to transmit a signal to the heating wire, which heats the mask until the temperature of the breathing mask matches the temperature of the exhaled air, thus preventing water mist from affecting the use of the mask. The gauze layer and water bladder allow for the use of saline solution to stabilize the skin condition of patients with sensitive skin, making the device more convenient for them and improving its practicality. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure as described in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall rear structure as described in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the oxygen supply device according to an embodiment of the present invention;

[0030] Figure 4This is a cross-sectional view of the oxygen supply device according to an embodiment of the present invention;

[0031] Figure 5 This is an enlarged structural schematic diagram of A according to an embodiment of the present invention;

[0032] Figure 6 This is a cross-sectional view of the oxygen supply mechanism described in an embodiment of the present invention;

[0033] Figure 7 This is a cross-sectional structural schematic diagram of the exhaust device described in an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Breathing mask; 2. Nasal clip; 3. Elastic band; 4. Oxygen supply device; 41. Oxygen supply tube; 42. Ventilation hose; 43. Oxygen concentration detector; 44. First through hole; 45. Oxygen supply mechanism; 451. Oxygen supply sleeve; 452. Second through hole; 453. Cylindrical sleeve; 454. Insert rod; 455. Sliding baffle; 456. Sleeve hole; 46. Rotating ball; 47. Movable rod; 48. First spring; 49. Moving plate; 5. Air inlet connector; 6. Exhaust device; 61. Exhaust horn pipe; 62. Fixed ventilated plate; 63. Telescopic rod; 64. Second spring; 65. Conical column; 7. Heating layer; 8. Temperature sensor; 9. Gauze layer; 10. Water bag. Detailed Implementation

[0036] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0037] Example 1:

[0038] like Figures 1-7 As shown, an oxygen inhalation mask suitable for a hyperbaric oxygen chamber includes a breathing mask 1, a nose clip 2 fixedly connected to the outer surface of the breathing mask 1, an elastic band 3 fixedly connected to the side of the outer surface of the breathing mask 1, an exhaust device 6 fixedly connected to the inside of the breathing mask 1, an oxygen inlet device 4 fixedly connected to the bottom of the breathing mask 1, an air inlet connector 5 fixedly connected to the bottom end of the oxygen inlet device 4, exhaust devices 6 symmetrically arranged on both sides of the oxygen inlet device 4, a heating layer 7 fixedly connected to the back of the breathing mask 1, a temperature sensor 8 fixedly connected to the middle of the outer surface of the heating layer 7, a gauze layer 9 fixedly connected to the side of the outer surface of the heating layer 7, and a water bladder 10 disposed inside the gauze layer 9.

[0039] The working principle of the above technical solution is as follows:

[0040] When using, place the elastic band 3 around the patient's head, then put the breathing mask 1 on the patient's face, with the gauze layer 9 fitting snugly against the patient's skin. After putting it on, open the air inlet connector 5 to allow oxygen to enter the breathing mask 1 through the oxygen inlet device 4 for the patient to breathe. Use the oxygen inlet device 4 to adjust the oxygen concentration to suit patients with different physical conditions. The patient's exhaled air is discharged through the exhaust device 6, which prevents outside air from entering the breathing mask 1 and affecting the oxygen concentration inside. If a patient with sensitive skin experiences skin discomfort after wearing the breathing mask 1, adjust the gauze layer 9. When the water bladder 10 is ruptured, the inside of the water bladder 10 contains physiological saline. The saline solution is absorbed into the gauze layer 9 by utilizing its absorbency, thus applying physiological saline solution to the contact area between the breathing mask 1 and the patient's skin, which can stabilize the skin condition. When the patient wears the breathing mask 1 for a long time, water mist will be generated due to the temperature difference between the exhaled air and the breathing mask 1. The temperature sensor 8 senses the temperature of the exhaled air, and the heating layer 7 contains an electric heating wire. The temperature sensor 8 transmits the signal to the electric heating wire to heat it until the temperature of the breathing mask 1 is consistent with the temperature of the exhaled air, thus preventing the generation of water mist.

[0041] Example 2:

[0042] The other structures of this embodiment 2 are the same as those of embodiment 1, except that the oxygen supply device 4 includes an oxygen supply pipe 41. The outer surface of the oxygen supply pipe 41 is fixedly connected to the inside of the breathing mask 1. A ventilation hose 42 is fixedly connected to the middle of the inside of the oxygen supply pipe 41. An oxygen concentration detector 43 is fixedly connected to the inside of the oxygen supply pipe 41.

[0043] A rotating ball 46 is rotatably connected to the inner wall of the oxygen inlet pipe 41, and an oxygen supply mechanism 45 is fixedly connected inside the oxygen inlet pipe 41. A first through hole 44 is opened on the outer surface of the oxygen inlet pipe 41, and the first through hole 44 is linearly arranged along the outer surface of the oxygen inlet pipe 41.

[0044] A movable rod 47 is slidably connected to the middle of the top of the oxygen inlet tube 41. The outer surface of the movable rod 47 penetrates the oxygen inlet tube 41 and extends into the inner cavity. A movable plate 49 is fixedly connected to the bottom end of the movable rod 47. The outer surface of the movable plate 49 is pressed and adapted to the inner surface of the oxygen inlet tube 41. A first spring 48 is fixedly connected to the outer surface of the movable rod 47. The output end of the first spring 48 is fixedly connected to the top of the oxygen inlet tube 41.

[0045] The oxygen supply mechanism 45 includes an oxygen supply housing 451. The outer surface of the oxygen supply housing 451 extends through the oxygen inlet pipe 41 and outwards. A second through hole 452 is provided on the outer surface of the oxygen supply housing 451. The second through hole 452 is arranged linearly along the outer surface of the oxygen supply housing 451.

[0046] A cylindrical sleeve 453 is fixedly connected to the inner surface of the oxygen supply sleeve 451. The outer surface of the cylindrical sleeve 453 is provided with a sleeve hole 456. There are several sleeve holes 456. A sliding baffle 455 is slidably connected to the inner surface of the sleeve hole 456. An insert rod 454 is sleeved inside the cylindrical sleeve 453. The outer surface of the insert rod 454 is squeezed and adapted to the outer surface of the sliding baffle 455.

[0047] Oxygen enters the oxygen inlet tube 41 through the oxygen inlet device 4. The gas passes through the groove on the surface of the rotating ball 46, and the gas flow drives the rotating ball 46 to rotate, so that the oxygen enters the interior of the oxygen inlet tube 41 evenly. The oxygen concentration inside the oxygen inlet tube 41 is detected by the oxygen concentration detector 43. The oxygen inlet device 4 is adjusted according to the patient's physical condition. If the patient needs assisted breathing, the ventilation hose 42 is squeezed to increase the gas pressure inside the oxygen inlet tube 41. The moving plate 49 moves upward under the action of air pressure, so that the moving plate 49 moves up above the first through hole 44. Oxygen enters the interior of the breathing mask 1 through the first through hole 44, and oxygen is provided at the same time as the oxygen supply mechanism 45, increasing the amount of oxygen entering to help the patient breathe.

[0048] When the device is used by elderly patients, who have weaker spontaneous breathing and require low-flow oxygen, the insertion rod 454 is inserted into the cylindrical housing 453. The end of the insertion rod 454 is conical and can pass through the middle of the component consisting of the sliding baffle 455, pushing the sliding baffle 455 outward. Oxygen enters the oxygen supply housing 451 through the second through hole 452. The oxygen flow rate is greatly slowed down by the obstruction of the sliding baffle 455, making it easier for elderly patients to control the oxygen flow rate.

[0049] Example 3:

[0050] The other structures of this embodiment 3 are the same as those of embodiments 1 and 2, except that the exhaust device 6 includes an exhaust horn pipe 61, the outer surface of the exhaust horn pipe 61 penetrates the breathing mask 1, a fixed ventilating plate 62 is fixedly connected to the inner surface of the exhaust horn pipe 61, a telescopic rod 63 is fixedly connected to the middle of the outer surface of the fixed ventilating plate 62, and a second spring 64 is sleeved on the outer surface of the telescopic rod 63.

[0051] The output end of the telescopic rod 63 is fixedly connected to a tapered column 65. The outer surface of the tapered column 65 is pressed and adapted to the inner surface of the exhaust horn pipe 61. The end of the second spring 64 is fixedly connected to the outer surface of the fixed vent plate 62, and the end of the second spring 64 away from the fixed vent plate 62 is fixedly connected to the outer surface of the tapered column 65.

[0052] During exhalation via the exhaust device 6, the patient's exhaled air passes through the fixed breathable plate 62. Because the air pressure inside the breathing mask 1 is greater than the external air pressure, the conical column 65 moves outward, the telescopic rod 63 extends, and the second spring 64 extends. The exhaled air is discharged to the outside through the gap between the conical column 65 and the exhaust horn tube 61. During inhalation, the elasticity of the second spring 64 causes the telescopic rod 63 to contract, allowing the conical column 65 to return to its original position.

[0053] The embodiments described above are merely illustrative of specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An oxygen inhalation mask suitable for hyperbaric oxygen chambers, comprising a breathing mask, characterized in that: A nose clip is fixedly connected to the outer surface of the breathing mask, an elastic band is fixedly connected to the side of the outer surface of the breathing mask, an exhaust device is fixedly connected to the inside of the breathing mask, an oxygen inlet device is fixedly connected to the bottom of the breathing mask, an air inlet connector is fixedly connected to the bottom end of the oxygen inlet device, the exhaust devices are symmetrically arranged on both sides of the oxygen inlet device, a heating layer is fixedly connected to the back of the breathing mask, a temperature sensor is fixedly connected to the middle of the outer surface of the heating layer, a gauze layer is fixedly connected to the side of the outer surface of the heating layer, and a water bladder is provided inside the gauze layer. The oxygen supply device includes an oxygen supply tube, the outer surface of which is fixedly connected to the inside of the breathing mask, a ventilation hose is fixedly connected to the middle of the inside of the oxygen supply tube, and an oxygen concentration detector is fixedly connected to the inside of the oxygen supply tube. The inner wall of the oxygen inlet pipe is rotatably connected to a rotating ball, and the inside of the oxygen inlet pipe is fixedly connected to an oxygen supply mechanism. The outer surface of the oxygen inlet pipe is provided with a first through hole, and the first through hole is linearly arranged along the outer surface of the oxygen inlet pipe. A movable rod is slidably connected to the middle of the top of the oxygen inlet pipe. The outer surface of the movable rod penetrates the oxygen inlet pipe and extends into the inner cavity. A movable plate is fixedly connected to the bottom end of the movable rod. The outer surface of the movable plate is pressed and adapted to the inner surface of the oxygen inlet pipe. A first spring is fixedly connected to the outer surface of the movable rod. The output end of the first spring is fixedly connected to the top of the oxygen inlet pipe. The oxygen supply mechanism includes an oxygen supply shell. The outer surface of the oxygen supply shell penetrates the oxygen inlet pipe and extends to the outside. A second through hole is opened on the outer surface of the oxygen supply shell. The second through hole is linearly arranged along the outer surface of the oxygen supply shell. A cylindrical shell is fixedly connected to the inner surface of the oxygen supply shell. A sleeve hole is opened on the outer surface of the cylindrical shell. The number of sleeve holes is several. A sliding baffle is slidably connected to the inner surface of the sleeve hole. An insert rod is sleeved inside the cylindrical shell. The outer surface of the insert rod is pressed and adapted to the outer surface of the sliding baffle.

2. The oxygen inhalation mask suitable for a hyperbaric oxygen chamber according to claim 1, characterized in that: The exhaust device includes an exhaust horn tube, the outer surface of which penetrates the breathing mask. A fixed ventilated plate is fixedly connected to the inner surface of the exhaust horn tube. A telescopic rod is fixedly connected to the middle of the outer surface of the fixed ventilated plate. A second spring is sleeved on the outer surface of the telescopic rod.

3. The oxygen inhalation mask suitable for a hyperbaric oxygen chamber according to claim 2, characterized in that: The output end of the telescopic rod is fixedly connected to a tapered column. The outer surface of the tapered column is pressed and adapted to the inner surface of the exhaust horn pipe. The end of the second spring is fixedly connected to the outer surface of the fixed vent plate, and the end of the second spring away from the fixed vent plate is fixedly connected to the outer surface of the tapered column.