Active exhaust saturated oxygen inhalation device
By combining an active exhaust structure with an elastic airbag, the problems of insufficient and uneven negative pressure in hyperbaric oxygen therapy are solved, achieving stable exhalation and a highly efficient oxygen therapy experience, thus expanding the application scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG CANTA MEDICAL TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-02
AI Technical Summary
In current hyperbaric oxygen therapy, the exhaust method relies on the pressure difference between the inside and outside of the chamber, resulting in insufficient negative pressure, unevenness, and insufficient instantaneous flow, which affects the user experience and exhalation efficiency.
It adopts an active exhaust structure, including a vacuum canister, a vacuum pump and an elastic airbag. The vacuum pump actively draws in gas to form a stable negative pressure, and the elastic airbag buffers the exhalation flow, eliminates uneven negative pressure, and ensures smooth exhalation.
Achieving stable exhalation in low-pressure or zero-pressure environments eliminates negative pressure differences, improves the breathing experience, reduces energy consumption, and broadens the application scenarios of hyperbaric oxygen therapy.
Smart Images
Figure CN224307648U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical equipment technology, specifically relating to an active exhaust saturated oxygen inhalation device. Background Technology
[0002] Regular oxygen therapy refers to oxygen inhalation via nasal cannula or open mask, which involves inhaling low-concentration (≤35%) or moderate-concentration (35%-50%) oxygen at atmospheric pressure, consistent with the surrounding environment. Saturation oxygen therapy refers to oxygen inhalation using a closed mask with a lung-type breathing valve, inhaling high-concentration (above 82%) or pure oxygen, consistent with the surrounding environment.
[0003] During hyperbaric oxygen therapy, saturation oxygen inhalation is typically required. The current exhaust method involves installing a balance tube inside the oxygen chamber, with one end open to the chamber and the other connected to the outside. Several ports on the balance tube connect to the exhaust pipe of a saturation oxygen mask. During hyperbaric oxygen therapy, when saturation oxygen is inhaled, positive pressure oxygen enters the saturation oxygen mask, the person inhales the oxygen, and then the exhaled air is expelled from the chamber through the exhaust port of the saturation oxygen mask and the balance tube. The core principle relies on the pressure difference between the inside and outside of the oxygen chamber to achieve exhalation; specifically, the Venturi effect generated when the high-pressure gas flows through the balance tube creates negative pressure at the exhaust port of the saturation oxygen mask, assisting the person in expelling their exhaled air.
[0004] However, existing technologies have the following drawbacks:
[0005] A certain pressure difference between the inside and outside of the chamber is required for its use. The strength of the Venturi effect generated at the interface between the balance tube and the saturation oxygen mask depends on the airflow within the balance tube. If the pressure difference between the inside and outside of the chamber is too small, the airflow will be weak, and the resulting negative pressure will be insufficient to meet the exhalation needs of the oxygen therapy personnel.
[0006] Poor uniformity of exhaust. The connection between the saturation oxygen mask and the balance tube is located at varying distances from both ends, resulting in an imbalance of negative pressure. Consequently, the expiratory resistance varies for each person at each point, leading to a poor user experience.
[0007] The instantaneous flow rate is insufficient to meet the instantaneous expiratory flow rate requirements of rapid exhalation. The flow rate at each point in the balance tube is fixed, usually set according to the average respiratory flow rate of most people. However, when there is a rapid exhalation, oxygen therapy patients may experience difficulty in exhaling. Utility Model Content
[0008] The present invention aims to solve at least one of the above-mentioned technical problems.
[0009] To address this, an active exhaust saturated oxygen inhalation device is proposed, comprising an oxygen source, an oxygen inhalation device, and an active exhaust structure connected sequentially via tubing; the oxygen inhalation device includes a respirator, a saturated oxygen inhalation mask, and an elastic airbag connected sequentially; the active exhaust structure includes a vacuum tank and a vacuum pump; the elastic airbag is provided with an inlet and an outlet, the saturated oxygen inhalation mask is connected to the inlet of the elastic airbag via tubing, the outlet of the elastic airbag is connected to one end of the vacuum tank via tubing, and the other end of the vacuum tank is connected to the vacuum pump; a vacuum pressure sensor is installed on the vacuum tank.
[0010] Preferably, the elastic airbag is provided with a shell on its exterior.
[0011] Preferably, the vacuum pressure sensor is electrically connected to the vacuum pump.
[0012] Preferably, the present invention also includes an oxygen chamber, wherein the oxygen inhalation device is disposed inside the oxygen chamber and the active exhaust structure is disposed outside the oxygen chamber.
[0013] Preferably, the number of oxygen inhalation devices is multiple sets, the multiple sets of oxygen inhalation devices are connected in parallel, and the multiple sets of oxygen inhalation devices are each connected to the vacuum tank through independent pipelines.
[0014] Preferably, the active exhaust structure further includes an exhaust muffler, and the vacuum pump is connected to the exhaust muffler.
[0015] Preferably, the oxygen source is an oxygen cylinder or an oxygen generator.
[0016] The beneficial effects of this utility model are:
[0017] This invention eliminates the balance tube design found in existing technologies, achieving stable operation of the device in low-pressure or zero-pressure environments through an active exhaust structure, thus broadening the application scenarios of hyperbaric oxygen therapy. The elastic airbag in this invention has a buffering function, effectively handling sudden large-flow exhalation, avoiding suffocation, and improving the breathing experience for oxygen therapy users. The elastic airbag also has a sealing function. This invention eliminates differences in exhalation resistance between oxygen inhalation points within the oxygen chamber through unified negative pressure control. This invention installs a vacuum pressure sensor on the vacuum tank, which is electrically connected to the vacuum pump, enabling the vacuum pump to operate on demand, reducing energy consumption, and aligning with the trend of green design in medical equipment. Attached Figure Description
[0018] Figure 1 This is a structural block diagram of an active exhaust saturated oxygen absorption device according to the present invention.
[0019] Figure 2 This is a schematic diagram of the structure of an active exhaust saturated oxygen absorption device according to the present invention.
[0020] Figure 3This is one of the usage states of the elastic airbag in this utility model.
[0021] Figure 4 This is the second diagram showing the usage state of the elastic airbag in this utility model.
[0022] Figure 5 This is a schematic diagram of the external housing of the elastic airbag in this utility model.
[0023] Marked in the image:
[0024] 1 is an oxygen source; 2 is a respirator; 3 is a saturated oxygen mask; 4 is an elastic airbag; 5 is a vacuum tank; 6 is a vacuum pressure sensor; 7 is a vacuum pump; 8 is an exhaust silencer; 9 is an oxygen chamber; 201 is the first respirator; 301 is the first saturated oxygen mask; 401 is the first elastic airbag; 202 is the second respirator; 302 is the second saturated oxygen mask; 402 is the second elastic airbag; 203 is the third respirator; 303 is the third saturated oxygen mask; 403 is the third elastic airbag. Detailed Implementation
[0025] To make the technical problems solved, the technical solutions, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] Combination Figures 1 to 5 As shown, an active exhaust saturated oxygen inhalation device includes an oxygen source 1, an oxygen inhalation device, and an active exhaust structure connected in sequence via pipelines; the oxygen inhalation device includes a respirator 2, a saturated oxygen inhalation mask 3, and an elastic airbag 4 connected in sequence; the active exhaust structure includes a vacuum tank 5 and a vacuum pump 7; the elastic airbag 4 is provided with an air inlet and an air outlet, the saturated oxygen inhalation mask 3 is connected to the air inlet of the elastic airbag 4 via pipelines, the air outlet of the elastic airbag 4 is connected to one end of the vacuum tank 5 via pipelines, and the other end of the vacuum tank 5 is connected to the vacuum pump 7; a vacuum pressure sensor 6 is installed on the vacuum tank 5.
[0027] Specifically, such as Figure 5 As shown, the elastic airbag 4 has an outer shell. The shell can be a rectangular or elliptical cavity. The two ends of the shell are fixed to the air inlet and outlet of the elastic airbag 4. The shell serves two functions: ① ensuring sufficient expansion space for the elastic airbag 4 and protecting it from punctures or scratches by sharp objects; ② limiting the two ends of the elastic airbag 4 to prevent twisting during deflation and subsequent abnormal repositioning.
[0028] Specifically, the pipeline connecting the elastic airbag 4 and the vacuum tank 5 uses a pipeline with anti-collapse design to ensure that the function of this utility model can be used normally.
[0029] Specifically, the vacuum pressure sensor 6 is electrically connected to the vacuum pump 7. The vacuum pressure sensor 6 monitors the vacuum pump 7 in real time and controls the displacement or start / stop of the vacuum pump 7, so that the vacuum pump 7 can work as needed.
[0030] Specifically, this utility model is used in conjunction with the oxygen chamber 9, such as... Figure 1 and Figure 2 As shown, the oxygen supply device is installed inside the oxygen chamber 9, and the active exhaust structure is installed outside the oxygen chamber 9.
[0031] Specifically, there are multiple sets of oxygen supply devices, which are installed in parallel inside the oxygen chamber 9. The outlets of the elastic airbags 4 are connected to the vacuum tanks 5 outside the oxygen chamber 9 via independent pipelines. Figure 1 As shown, there are three sets of oxygen supply devices. The first set consists of a first respirator 201, a first saturated oxygen mask 301, and a first elastic airbag 401 connected in sequence. The second set consists of a second respirator 202, a second saturated oxygen mask 302, and a second elastic airbag 402. The third set consists of a third respirator 203, a third saturated oxygen mask 303, and a third elastic airbag 403. In use, the three independent oxygen supply points operate in parallel within the oxygen chamber 9. The negative pressure at each oxygen supply point is uniformly controlled by the same active exhaust structure, eliminating the problem of uneven negative pressure caused by differences in pipeline positions.
[0032] Specifically, the active exhaust structure also includes an exhaust muffler 8, with the vacuum pump 7 connected to the exhaust muffler 8. The exhaust muffler 8 effectively reduces noise, improving the user experience for oxygen therapy personnel.
[0033] Specifically, oxygen source 1 is an oxygen tank or oxygen generator.
[0034] The vacuum pump 7 of this invention is preferably an oil-free vacuum pump.
[0035] The elastic airbag 4 of this invention is a cavity structure made of elastic material, and the elastic airbag 4 is expandable and contractible. Figure 4 As shown, when there is no exhalation, the elastic airbag 4 contracts under vacuum negative pressure, thus blocking the exhaust passage and preventing leakage of positive pressure oxygen from the saturated oxygen mask 3. In contrast, traditional balance tubes, due to the continuous airflow, cannot prevent oxygen loss with the exhaled air. Figure 3 As shown, during exhalation, the elastic airbag 4 inflates. When the oxygen therapy user exhales deeply, the elastic airbag 4 can store the instantaneously generated high flow rate of gas, preventing expiratory obstruction caused by tubing flow limitations, balancing the fluctuations in the expiratory flow rate of the oxygen therapy device, and buffering the expiratory gas flow rate. Therefore, the elastic airbag 4 structure of this invention serves to seal and buffer the expiratory flow rate.
[0036] This invention eliminates the passive exhaust method found in existing technologies. Instead, it actively extracts gas from the vacuum tank 5 using an external vacuum pump 7, thereby creating a stable negative pressure at the exhaust end of the saturated oxygen mask 3. The vacuum level within the vacuum tank 5 is monitored in real time by a vacuum pressure sensor 6 and maintained constant by controlling the flow rate or start / stop of the vacuum pump 7. This allows for sufficient negative pressure during exhalation in low-pressure environments, such as near-atmospheric pressure or zero-pressure environments, overcoming the pressure differential limitations of traditional systems.
[0037] Multiple oxygen supply devices are installed inside the oxygen chamber 9. These devices are connected in parallel and are connected to the active exhaust structure through independent pipelines for unified control, eliminating the problem of uneven negative pressure caused by differences in pipeline location.
[0038] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.
Claims
1. A saturated oxygen absorbing device actively venting, characterized by: The system includes an oxygen source (1), an oxygen inhalation device, and an active exhaust structure connected in sequence via pipelines. The oxygen inhalation device includes a respirator (2), a saturated oxygen inhalation mask (3), and an elastic airbag (4) connected in sequence. The active exhaust structure includes a vacuum tank (5) and a vacuum pump (7). The elastic airbag (4) is provided with an air inlet and an air outlet. The saturated oxygen inhalation mask (3) is connected to the air inlet of the elastic airbag (4) via pipelines. The air outlet of the elastic airbag (4) is connected to one end of the vacuum tank (5) via pipelines. The other end of the vacuum tank (5) is connected to the vacuum pump (7). A vacuum pressure sensor (6) is installed on the vacuum tank (5).
2. The actively vented, saturated oxygen catheter of claim 1, wherein: The elastic airbag (4) has an outer shell.
3. The active exhaust saturated oxygen intake device according to claim 1, characterized in that: The vacuum pressure sensor (6) is electrically connected to the vacuum pump (7).
4. The active exhaust saturated oxygen intake device according to claim 1, characterized in that: It also includes an oxygen chamber (9), the oxygen inhalation device is installed inside the oxygen chamber (9), and the active exhaust structure is installed outside the oxygen chamber (9).
5. The active exhaust saturated oxygen intake device according to claim 1, characterized in that: The number of oxygen inhalation devices is multiple sets, and the multiple sets of oxygen inhalation devices are connected in parallel. The multiple sets of oxygen inhalation devices are respectively connected to the vacuum tank (5) through pipelines.
6. The active exhaust saturated oxygen intake device according to claim 1, characterized in that: The active exhaust structure also includes an exhaust muffler (8), and the vacuum pump (7) is connected to the exhaust muffler (8).
7. The active exhaust saturated oxygen absorption device according to claim 1, characterized in that: The oxygen source (1) is an oxygen tank or an oxygen generator.