Mixed oxygen treatment system

Abstract

The utility model relates to the technical field of ventilation treatment, and discloses an oxygen mixing treatment system which comprises an oxygen generator (1), an oxygen storage tank (2) and ventilation treatment equipment (3), and the oxygen storage tank (2) and the ventilation treatment equipment (3) are respectively connected with an oxygen outlet of the oxygen generator (1), so that an air-oxygen mixture can be conveyed to a patient (4) through the ventilation treatment equipment (3). And when the patient (4) exhales, oxygen generated by the oxygen generator (1) is stored in the oxygen storage tank (2). According to the oxygen mixing treatment system, the oxygen storage tank is connected to the oxygen outlet of the oxygen generator, when a patient inhales, a warm and humid air and oxygen mixture can be conveyed through the ventilation treatment equipment, when the patient exhales, oxygen generated by the oxygen generator is stored in the oxygen storage tank, and the stored oxygen can be conveyed to the patient together with the patient when the patient inhales; the oxygen flow supplied to a patient is increased, and the treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to a ventilation treatment technology, in particular to a mixed oxygen treatment system. Background Art

[0002] In modern clinical medicine, oxygen concentrators, ventilators and other ventilation therapy equipment are used to provide oxygen or air to patients with respiratory failure to maintain breathing and ensure ventilation, which plays a vital role in saving and prolonging patients' lives, performing respiratory support therapy and emergency resuscitation. For example, the oxygen outlet of an oxygen concentrator is connected to a patient for oxygen therapy, and the oxygen concentrator continuously supplies the patient with the oxygen needed for breathing.

[0003] However, existing oxygen concentrators are usually connected to the patient's nasal cavity through an oxygen inhalation tube, and output a constant flow of oxygen throughout the patient's entire breathing process (inhalation and exhalation). However, during the patient's exhalation process, oxygen supply is not required. At this time, if the oxygen concentrator is used to continuously supply oxygen, the oxygen will escape through the oxygen inhalation tube, resulting in a large amount of oxygen waste. Utility Model Content

[0004] The purpose of the utility model is to overcome the problem of a large amount of oxygen being wasted during use of an oxygen concentrator in the prior art, and to provide a mixed oxygen therapy system, which can deliver the required breathing gas to the patient when the patient inhales, and store the oxygen produced by the oxygen concentrator when the patient exhales, so as to avoid wasting oxygen.

[0005] In order to achieve the above-mentioned objectives, the utility model provides, on the one hand, a mixed oxygen therapy system, comprising an oxygen concentrator, an oxygen storage tank and a ventilation therapy device respectively connected to the oxygen outlet of the oxygen concentrator, so that an air-oxygen mixture can be delivered to a patient through the ventilation therapy device, and the oxygen generated by the oxygen concentrator is stored in the oxygen storage tank when the patient exhales.

[0006] Preferably, a first one-way valve with a positive gas outlet facing the oxygen storage tank is provided on the gas passage between the oxygen concentrator and the oxygen storage tank.

[0007] Preferably, the oxygen storage tank has an air inlet connected to an oxygen outlet of the oxygen concentrator and an air outlet connected to the ventilation therapy device, and the ventilation therapy device can receive oxygen from the oxygen storage tank to deliver an air-oxygen mixture to the patient.

[0008] Preferably, the ventilation pipeline of the oxygen concentrator connected to the ventilation therapy device and the oxygen storage tank are connected to the oxygen outlet of the oxygen concentrator through a common port.

[0009] Preferably, the ventilation pipeline of the oxygen concentrator connected to the ventilation therapy device and the oxygen storage tank are connected to the oxygen supply port of the ventilation therapy device through a common port.

[0010] Preferably, a portion of the ventilation circuit of the oxygen concentrator connected to the ventilation therapy device and connected in parallel with the oxygen storage tank is provided with a second one-way valve with a forward gas outlet facing the ventilation therapy device.

[0011] Preferably, an on-off switch is provided on the gas passage of the oxygen concentrator connected to the ventilation therapy device, so that an air-oxygen mixture is delivered to the patient when the on-off switch is in the on state, and the oxygen generated by the oxygen concentrator is stored in the oxygen storage tank when the on-off switch is in the off state.

[0012] Preferably, the ventilation therapy device has a respiratory state sensor for sensing the respiratory state of the patient, and the on-off switch signal is connected to the respiratory state sensor so that the on-off switch is switched to the closed state when the respiratory state sensor senses the patient's exhalation.

[0013] Preferably, the respiratory state sensor is a gas pressure sensor or a gas flow sensor provided on a delivery passage of the ventilation therapy device connected to the patient.

[0014] Preferably, the oxygen concentrator is configured to output a constant flow of oxygen through the oxygen outlet.

[0015] Through the above technical scheme, the utility model connects an oxygen storage tank to the oxygen outlet of the oxygen concentrator, and when the patient inhales, the warm and humidified air-oxygen mixture can be delivered through the ventilation therapy equipment, and the oxygen generated by the oxygen concentrator is stored in the oxygen storage tank when the patient exhales. The stored oxygen can be delivered to the patient when the patient inhales, which is beneficial to increase the oxygen flow supplied to the patient and improve the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the principle of a mixed oxygen therapy system according to a preferred embodiment of the utility model.

[0017] Description of Reference Numerals

[0018] 1- oxygen concentrator; 2- oxygen storage tank; 3- ventilation therapy equipment; 4- patient; 5- first one-way valve; 6- second one-way valve. DETAILED DESCRIPTION

[0019] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0020] Reference Figure 1 As shown, a mixed oxygen therapy system according to a preferred embodiment of the utility model comprises an oxygen concentrator 1, an oxygen storage tank 2 and a ventilation therapy device 3, wherein the oxygen storage tank 2 and the ventilation therapy device 3 are respectively connected to the oxygen outlet of the oxygen concentrator 1 so as to respectively receive the oxygen generated by the oxygen concentrator 1. The oxygen storage tube 2 can be integrated in the oxygen concentrator 1, or separately arranged relative to the oxygen concentrator 1 and the ventilation therapy device 3. The ventilation therapy device 3 can be a ventilator or a high-flow humidified oxygen therapy device, with a humidification tank, and the oxygen generated by the oxygen concentrator 1 can be heated and humidified by the humidification tank and then delivered to the patient 4. In addition, the ventilation therapy device 3 itself can absorb air from the external space, and mix the heated and humidified air with the oxygen generated by the oxygen concentrator 1 to form an air-oxygen mixture and deliver it to the patient together for mixed oxygen therapy.

[0021] Thus, the patient 4 can obtain the gas required for breathing through the breathing mask, nasal oxygen tube, etc. connected to the ventilation therapy device 3. For example, when only the ventilation therapy device 3 is working, the ventilation therapy device 3 delivers air with suitable humidity and temperature to the patient 4; when the oxygen concentrator 1 and the ventilation therapy device 3 are working at the same time, the oxygen generated by the oxygen concentrator 1 is supplied to the ventilation therapy device 3, mixed with the air absorbed from the external space by the ventilation therapy device 3, and then delivered to the patient 4 after being heated and humidified.

[0022] In order to avoid the waste of oxygen generated by the oxygen concentrator 1, the oxygen outlet of the oxygen concentrator 1 can be connected to the ventilation therapy device 3 only during the inhalation process of the patient 4, and connected to the oxygen storage tank 2 during the exhalation process of the patient 4. In this way, the excess oxygen generated by the oxygen concentrator 1 during the exhalation process of the patient 4 can be stored in the oxygen storage tank 2, and the stored oxygen can be delivered to the patient 4 together with the oxygen generated by the oxygen concentrator 1 when the patient 4 inhales, thereby providing a sufficient oxygen flow when the patient 4 inhales. Compared with relying solely on the constant oxygen flow generated by the oxygen concentrator 1, it can not only avoid oxygen waste, but also effectively improve the treatment effect.

[0023] Although the oxygen storage tank 2 is connected to the ventilation therapy device 3 in the preferred embodiment shown in the figure, so that the stored oxygen can be delivered to the patient 4 when the patient 4 inhales, the present invention is not limited thereto. For example, in the case where the oxygen storage tank 2 is not connected to the ventilation therapy device 3, the oxygen generated by the oxygen concentrator 1 during the exhalation process of the patient 4 and stored in the oxygen storage tank 2 can also be used for other purposes, which can also achieve the purpose of avoiding oxygen waste.

[0024] In order to achieve a good mixed oxygen therapy control effect, appropriate detection and control components can be set in the mixed oxygen therapy system of the present invention to control the connection relationship between the oxygen generator 1, the oxygen storage tank 2 and the ventilation therapy equipment 3 at an appropriate time.

[0025] In the preferred embodiment shown in the figure, a first one-way valve 5 with a forward gas outlet facing the oxygen storage tank 2 can be provided on the gas passage between the oxygen concentrator 1 and the oxygen storage tank 2, thereby preventing the oxygen in the oxygen storage tank 2 from flowing back to the oxygen concentrator 1 due to excessive pressure. It can be understood that the forward gas outlet mentioned here and below refers to the gas outlet when the one-way valve is opened in the forward direction, that is, the gas outlet when the one-way valve is opened under the action of the pressure difference between the two sides, and when the pressure at one end of the gas outlet is relatively large, the gas outlet is reversely closed. The provision of a one-way valve can be beneficial to the reliability of use when the patient's breathing ratio is too high, and avoid oxygen backflow caused by the patient's exhalation time being much longer than the inhalation time.

[0026] In the mixed oxygen therapy system of the present invention, the oxygen storage tank 2 may have an air inlet and an air outlet, wherein the air inlet is connected to the oxygen outlet of the oxygen concentrator 1, and the air outlet is connected to the ventilation therapy device 3, so that on the one hand, the air inlet can receive oxygen from the oxygen concentrator 1, and on the other hand, the stored oxygen can be delivered to the ventilation therapy device 3 through the air outlet. Through this arrangement, during the inhalation process of the patient 4, the oxygen generated by the oxygen concentrator 1 and the oxygen stored in the oxygen storage tank 2 can be delivered to the patient 4 together. At this time, the oxygen flow rate generated will be greater than the oxygen generated by the oxygen concentrator 1 alone, and the oxygen flow rate will be significantly improved, so as to facilitate obtaining a better treatment effect. In other alternatives, the oxygen storage tank 2 can also use a common port to connect the oxygen concentrator 1 and the ventilation therapy device 3, and control the valve so that the port selectively connects to either the oxygen concentrator 1 or the ventilation therapy device 3 to achieve oxygen storage and supply control.

[0027] In order to apply the mixed oxygen therapy system of the present invention to the existing oxygen concentrator and ventilation therapy equipment, a parallel gas flow path can be set between the oxygen concentrator 1 and the ventilation therapy equipment 3, and the two ends are respectively connected to the oxygen concentrator 1 and the ventilation therapy equipment 3 through a common port, and an oxygen storage tank 2 is set on one of the gas flow paths. Figure 1 As shown, the oxygen outlet of the oxygen concentrator 1 is connected to the ventilation therapy device 3 through a ventilation pipeline, and the ventilation pipeline is arranged in parallel with the oxygen storage tank 2, and is connected to the oxygen outlet of the oxygen concentrator 1 through a common port at one end; accordingly, it is connected to the oxygen supply port of the ventilation therapy device 3 through a common port at the other end, so that oxygen can be supplied to the ventilation therapy device 3 by the oxygen concentrator 1 and the oxygen storage tank 2.

[0028] In this case, the oxygen outputted by the oxygen storage tank 2 may flow back to the oxygen outlet of the oxygen concentrator 1 through the ventilation pipeline. To this end, a second one-way valve 6 with a positive gas outlet facing the ventilation therapy device 3 may be provided on the ventilation pipeline of the oxygen concentrator 1 connected to the ventilation therapy device 3 in parallel with the oxygen storage tank 2. The second one-way valve 2 only allows gas to flow from the oxygen concentrator 1 to the ventilation therapy device 3, and blocks the reverse direction.

[0029] During operation, it is necessary to timely cut off the connection between the oxygen concentrator 1 and the ventilation therapy device 3 so that the oxygen generated by the oxygen concentrator 1 can enter the oxygen storage tank 2 during the exhalation of the patient 4. To this end, an on-off switch can be provided on the gas passage of the oxygen concentrator 1 connected to the ventilation therapy device 3, so that the air-oxygen mixture is delivered to the patient 4 when the on-off switch is in the open state, and the oxygen generated by the oxygen concentrator 1 is stored in the oxygen storage tank 2 when the on-off switch is in the closed state. In the preferred embodiment shown in the figure, the on-off switch can be provided at a position close to the oxygen supply port of the ventilation therapy device 3, so that the connection relationship between the ventilation pipelines connected in parallel and the ventilation therapy device 3 can be simultaneously controlled, so that when the patient 4 inhales, the oxygen concentrator 1 and the oxygen storage tank 2 simultaneously supply oxygen to the patient, and when the patient exhales, the oxygen generated by the oxygen concentrator 1 enters the oxygen storage tank 2 for storage. The on-off switch described here can be a control element such as a proportional valve, or it can be a common switch device.

[0030] According to the above, the mixed oxygen therapy system of the utility model needs to control the interconnection relationship between the oxygen generator 1, the oxygen storage tank 2, and the ventilation therapy device 3 according to the different respiratory states of the patient. In a preferred embodiment, a respiratory state sensor for sensing the respiratory state of the patient 4 can be set in the ventilation therapy device 3, and the on-off switch signal is connected to the respiratory state sensor, so that when the respiratory state sensor senses that the patient 4 exhales, the on-off switch is switched to the closed state, and the oxygen generated by the oxygen generator 1 enters the oxygen storage tank 2 for storage; when it senses that the patient 4 inhales, the on-off switch is switched to the open state, and the oxygen generated by the oxygen generator 1 (and stored in the oxygen storage tank 2) is delivered to the ventilation therapy device 3, and then delivered to the patient 4.

[0031] The respiratory state sensor can be arranged on the delivery path of the ventilation therapy equipment 3 connected to the patient 4, such as inside a humidification tank, on a ventilation pipeline, etc. It can be specifically selected as a gas pressure sensor or a gas flow sensor to present different waveform changes under different respiratory states of the patient 4, and serve as a basis for controlling the on-off state of the on-off switch on the gas path between the oxygen generator 1 and the ventilation therapy equipment 3.

[0032] The oxygen generator 1 is directly connected to the patient 4, and the oxygen supply mode is relatively simple. It does not supply and stop oxygen with the breathing of the patient 4, which causes a large amount of oxygen waste, and usually can only output oxygen at a constant flow rate. The utility model combines the oxygen generator 1 with the ventilation treatment device 3, and an oxygen storage tank 2 is installed in the middle, which can save the wasted oxygen and indirectly increase the oxygen flow rate of the patient 4 when inhaling, so as to obtain a better treatment effect.

[0033] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A mixed oxygen therapy system, characterized in that: The invention comprises an oxygen concentrator (1), an oxygen storage tank (2) and a ventilation therapy device (3) respectively connected to the oxygen outlet of the oxygen concentrator (1), so that an air-oxygen mixture can be delivered to a patient (4) through the ventilation therapy device (3), and the oxygen generated by the oxygen concentrator (1) is stored in the oxygen storage tank (2) when the patient (4) exhales. An on-off switch is provided on the gas passage of the oxygen concentrator (1) connected to the ventilation therapy device (3), so that the air-oxygen mixture can be delivered to the patient (4) when the on-off switch is in the on state, and the oxygen generated by the oxygen concentrator (1) is stored in the oxygen storage tank (2) when the on-off switch is in the off state.

2. The mixed oxygen therapy system according to claim 1, characterized in that: A first one-way valve (5) with a positive gas outlet facing the oxygen storage tank (2) is provided on the gas passage between the oxygen generator (1) and the oxygen storage tank (2).

3. The mixed oxygen therapy system according to claim 1, characterized in that: The oxygen storage tank (2) has an air inlet connected to the oxygen outlet of the oxygen concentrator (1) and an air outlet connected to the ventilation therapy device (3), and the ventilation therapy device (3) is capable of receiving oxygen from the oxygen storage tank (2) to deliver an air-oxygen mixture to the patient (4).

4. The mixed oxygen therapy system according to claim 3, characterized in that: The oxygen concentrator (1) is connected to the ventilation pipeline of the ventilation therapy device (3) and the oxygen storage tank (2) is connected to the oxygen outlet of the oxygen concentrator (1) through a common port.

5. The mixed oxygen therapy system according to claim 3, characterized in that: The oxygen concentrator (1) is connected to the ventilation pipeline of the ventilation therapy device (3) and the oxygen storage tank (2) is connected to the oxygen supply port of the ventilation therapy device (3) through a common port.

6. The mixed oxygen therapy system according to claim 5, characterized in that: The portion of the ventilation pipeline of the oxygen concentrator (1) connected to the ventilation therapy device (3) and connected in parallel with the oxygen storage tank (2) is provided with a second one-way valve (6) with a forward gas outlet facing the ventilation therapy device (3).

7. The mixed oxygen therapy system according to claim 1, characterized in that: The ventilation therapy device (3) has a respiratory state sensor for sensing the respiratory state of the patient (4), and the on-off switch signal is connected to the respiratory state sensor so that the on-off switch is switched to the off state when the respiratory state sensor senses that the patient (4) is exhaling.

8. The mixed oxygen therapy system according to claim 7, characterized in that: The respiratory state sensor is a gas pressure sensor or a gas flow sensor provided on a delivery passage of the ventilation therapy device (3) connected to the patient (4).

9. The mixed oxygen therapy system according to claim 1, characterized in that: The oxygen concentrator (1) is configured to be able to output a constant flow of oxygen through the oxygen outlet.

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