Dual-mode mechanical oxygen supply device for hospital first aid

Abstract

The invention discloses a dual-mode mechanical oxygen supply device for hospital first aid. The invention relates to the technical field of oxygen generation and oxygen supply medical equipment. The emergency oxygen supply system aims at solving the key technical problems that a traditional emergency oxygen supply system is low in oxygen utilization rate, frequent in steel cylinder replacement, high in system leakage rate, poor in space adaptability and the like. The direct current oxygen supply mode and the lung type oxygen supply mode are integrated, on-demand oxygen supply is achieved through the mode switching switch, the high-precision negative pressure sensing technology is combined in the lung type mode, the oxygen saving rate is larger than or equal to 67%, and the single-bottle oxygen supply duration is remarkably prolonged. A compact square structural design is adopted, the boundary dimension is accurately limited to be 120mm * 80mm * 60mm, the device perfectly adapts to the mounting space of an ambulance first-aid kit and an ICU equipment belt, and the leakage rate is controlled within 1% of the total oxygen supply amount through a sealing structure. And pressure reduction, high-precision flow regulation and a fluorescent identification system are integrated, so that the stability, safety and operation convenience of oxygen supply in a complex first-aid environment are ensured.

Description

Technical Field

[0001] This invention relates to the field of oxygen generation and supply medical equipment technology, specifically a dual-mode mechanical oxygen supply device for hospital emergency care. Background Technology

[0002] Emergency oxygen supply is a core component of critical care, especially in pre-hospital transport, emergency departments, and ICUs, where the immediacy, stability, and efficiency of oxygen supply directly impact patient outcomes. Currently, hospital emergency oxygen supply primarily relies on cylinder oxygen (portable but with limited capacity), liquid oxygen (large supply but requiring special storage), and centralized oxygen supply systems (stable but dependent on pipeline networks). However, emergency scenarios are characterized by their suddenness, complex environments, and high demand for equipment mobility, making cylinder oxygen supply the mainstream method for emergency care due to its flexibility and independence.

[0003] Existing emergency oxygen supply technologies and their shortcomings: (1) The core pain points of cylinder oxygen in emergency care Low oxygen utilization: Traditional nasal cannulas, masks, or balloon oxygen supply use a continuous airflow mode, and about 60% to 80% of the oxygen escapes directly into the environment without being inhaled by the patient, resulting in huge waste.

[0004] Frequent cylinder replacements: A standard 40L cylinder can only provide oxygen for about 40 minutes at a flow rate of 10L / min. However, emergency transport or prolonged rescue requires multiple interruptions of oxygen therapy to replace the cylinder, which delays treatment.

[0005] Transportation and management burden: The cylinders are heavy (about 60kg, about 50-60L), and handling requires special personnel and poses a high-pressure container safety risk; frequent procurement and testing further increase the hospital's operating costs.

[0006] (2) Limitations of existing energy-saving technologies Recirculating respiratory systems, such as the circulation loop of anesthesia machines, can reduce oxygen consumption, but the equipment is complex and requires CO2 adsorbents, making them unsuitable for rapid deployment in emergency situations.

[0007] Demand valves deliver oxygen only when the patient inhales, but the delayed response can lead to hypoxia and they are poorly suited for patients with weak breathing.

[0008] Portable liquid oxygen devices: Although they increase oxygen storage density, the ultra-low temperature storage requirements (-183°C) and evaporation loss limit their widespread use in emergency care.

[0009] (3) Systemic losses have not been resolved Studies have shown that emergency oxygen supply systems have multiple leak points (valves, interfaces, pipes), and traditional leak detection techniques (such as pressure decay tests) cannot quantify the amount of leakage, leading to hidden oxygen waste. According to clinical statistics, due to the complexity of the pipelines, the leakage of oxygen supply systems in ambulances can reach 15% to 30% of the total oxygen supply. Summary of the Invention

[0010] To address the aforementioned technical problems, this invention provides a dual-mode mechanical oxygen supply device for hospital emergency care.

[0011] Includes: oxygen supply control unit, connection components, flow regulation components, mode switching switch, and air outlet components.

[0012] Specifically, the oxygen supply control unit, as the integrated core of the equipment, integrates a voltage stabilizing component and a high-precision lung-type component to provide stable oxygen output in emergency situations.

[0013] Specifically, the connecting component is located on one side of the oxygen supply control body and is used to connect to the valve of the hospital's high-pressure steel cylinder or the vaporization interface of the liquid oxygen tank.

[0014] Specifically, the air outlet component is located on the other side of the oxygen supply control body and includes an oxygen outlet and a negative pressure sensing port.

[0015] Specifically, the flow regulation component is installed on the oxygen supply control body and is used to regulate the oxygen supply flow rate.

[0016] Specifically, the mode switching switch is located on the oxygen supply control unit and is used to switch between DC oxygen supply mode and lung oxygen supply mode.

[0017] Specifically, the humidification bottle is detachably installed on the oxygen supply control unit to humidify the output oxygen, so as to meet the respiratory care needs of long-term oxygen supply in emergency situations.

[0018] Specifically, the outer shell of the oxygen supply control unit is a high-strength square structure, and its length, width and height are limited to: length 120mm±10mm, width 80mm±10mm and height 60mm±10mm, in order to adapt to the standard equipment installation space and operating table layout in hospitals, reduce the space occupied by the equipment and prevent violent shaking during transportation.

[0019] Specifically, the lung-type component includes a diaphragm, a valve core, and a return spring. The negative pressure sensing port is connected to the air chamber on one side of the diaphragm. Under negative pressure, the diaphragm drives the valve core to open the oxygen supply path. After the negative pressure disappears, the return spring pushes the valve core to return to its original position and close the air path.

[0020] Specifically, the flow regulation component includes a float flow meter and a flow regulation knob.

[0021] Specifically, the float flow meter is equipped with a float inside, and the real-time flow rate is determined by the suspension height of the float in the conical tube.

[0022] Specifically, the flow rate adjustment knob is used to control the airway opening and closing and the flow rate. Its rotation angle is linearly related to the airway opening, achieving precise flow rate control over a wide range of 0 to 15 L / min to meet the high flow rate requirements during cardiopulmonary resuscitation or emergency resuscitation.

[0023] Specifically, the connection assembly includes a cylinder connector for connecting to the valve of a hospital high-pressure cylinder.

[0024] Specifically, a pressure reducer is provided between the connecting component and the oxygen supply control body to reduce the input pressure from 15MPa to a working pressure of 0.3-0.8MPa.

[0025] Specifically, the cylinder connector has a thread specification of G5 / 8 (approximately 22.911 mm) and is used to match the valve of a standard medical oxygen cylinder. Specifically, the interface of the connecting component is equipped with a leak-proof sealing structure to control the system interface leakage rate to within 1% of the total oxygen supply.

[0026] Specifically, the pressure reducer is integrated inside the oxygen supply control unit.

[0027] Specifically, the leak-proof sealing structure is a medical-grade O-ring that is installed on the joint end face between the connecting component and the oxygen supply control body.

[0028] Specifically, the mode switching switch is a knob-type structure, including two operating positions: DC oxygen supply and lung oxygen supply.

[0029] Specifically, in the DC oxygen supply mode, oxygen continuously flows out from the oxygen outlet, which is suitable for critical care emergency scenarios where breathing is weak or oxygen is required through a mask.

[0030] Specifically, in the lung-type oxygen supply mode, the airway is connected to the negative pressure sensing port, and the oxygen supply pulse is controlled by the respiratory negative pressure. High-concentration oxygen pulses are released only during the patient's inspiratory phase to achieve on-demand oxygen supply, and the oxygen saving rate is increased by ≥67%.

[0031] Specifically, in the gas outlet assembly, the oxygen outlet and the negative pressure sensing port are arranged side by side, and both are connected to corresponding conduit interfaces.

[0032] Specifically, the conduit interface connected to the oxygen outlet is a conical connector with an outer diameter of 10mm ± 0.5mm, used to connect to a standard oxygen delivery conduit or a breathing mask.

[0033] Specifically, the conduit interface connected to the negative pressure sensing port is a straight connector with an inner diameter of 4mm ± 0.3mm, used to connect the negative pressure sensing tube.

[0034] Specifically, the square outer shell is made of aerospace aluminum alloy or high-strength engineering plastic, and the surface is provided with anti-slip texture and visual marking area; the visual marking area is provided with fluorescent scale lines and mode indicator marks, which clearly mark the working mode, airflow status and safety warning information in low light environment, so as to comply with the clinical operation standards of hospitals and pre-hospital emergency care.

[0035] The beneficial effects of this invention are as follows: The present invention provides a dual-mode mechanical oxygen supply device for hospital emergency care, achieving an oxygen saving rate of ≥67% (i.e., 2 / 3) and significantly reducing the frequency of cylinder replacement. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 This is a front structural schematic diagram of a dual-mode mechanical oxygen supply device for hospital emergency care according to the present invention. Figure 2 This is a side view of a dual-mode mechanical oxygen supply device for hospital emergency care according to the present invention. Figure labels: Oxygen supply control body (1), flow adjustment knob (2), mode switching switch (3), oxygen outlet (4), negative pressure sensing port (5), humidification bottle (6), connecting assembly (7), float flow meter (8). Detailed Implementation

[0038] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0039] The following detailed description of the implementation method of the present invention is in conjunction with the accompanying drawings. The description is only a partial embodiment and not all embodiments. For clarity, representations and descriptions unrelated to the present invention are omitted in the drawings and description.

[0040] To provide a clearer understanding of the technical features, objectives, and beneficial effects of this invention, the following detailed description of the technical solution is provided. Obviously, the described embodiments are only a portion of the embodiments of this invention, not all of them, and should not be construed as limiting the scope of implementation of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the protection scope of this invention.

[0041] Example 1 This embodiment provides a dual-mode mechanical oxygen supply device for hospital emergency care, including: an oxygen supply control body 1, a connection component 7, a flow regulation component, a mode switching switch 3, and an air outlet component.

[0042] In this embodiment, the oxygen supply control unit 1 serves as the integrated core of the device, and internally integrates a pressure stabilizing component and a lung-type component.

[0043] In this embodiment, the connecting component 7 is disposed on one side of the oxygen supply control body 1 and is used to connect to the hospital cylinder valve or the hospital bed oxygen supply interface.

[0044] In this embodiment, the air outlet component is located on the other side of the oxygen supply control body 1, and includes an oxygen outlet 4 and a negative pressure sensing port 5.

[0045] In this embodiment, the flow rate adjustment component is disposed on the oxygen supply control body 1 and is used to adjust the oxygen supply flow rate.

[0046] In this embodiment, the mode switching switch 3 is disposed on the oxygen supply control body 1 and is used to switch between DC oxygen supply mode and lung oxygen supply mode.

[0047] In this embodiment, the humidification bottle 6 is detachably mounted on the oxygen supply control body 1.

[0048] In this embodiment, the outer shell of the oxygen supply control body 1 is a square structure, and its length, width and height are limited to: length 120mm±10mm, width 80mm±10mm and height 60mm±10mm, so as to adapt to the standard equipment installation space and operating table layout of the hospital.

[0049] In this embodiment, the lung-type component includes a diaphragm, a valve core, and a return spring. The negative pressure sensing port 5 is connected to the air chamber on one side of the diaphragm. Under negative pressure, the diaphragm drives the valve core to open the oxygen supply path. After the negative pressure disappears, the return spring pushes the valve core to reset and close the air path.

[0050] In this embodiment, the flow regulation component includes a float flow meter 8 and a flow regulation knob 2.

[0051] In this embodiment, the float flow meter 8 is equipped with a float, and the flow rate is determined by the height of the float.

[0052] In this embodiment, the flow rate adjustment knob 2 is used to control the opening and closing of the air passage and the flow rate.

[0053] In this embodiment, the connecting component 7 includes a cylinder connector for connecting to the valve of a hospital cylinder, or a pipe connector for connecting to the oxygen supply pipeline of a hospital bed.

[0054] In this embodiment, a pressure reducer is provided between the connecting component 7 and the oxygen supply control body 1 to reduce the input pressure from 15MPa to below 1MPa.

[0055] In this embodiment, the pressure reducer is integrated inside the oxygen supply control unit 1.

[0056] In this embodiment, the leak-proof sealing structure is a medical-grade O-ring that is disposed on the joint end face of the connecting component 7 and the oxygen supply control body 1.

[0057] In this embodiment, the mode switching switch 3 is a knob-type structure used to control the switching of the internal airway; in the DC oxygen supply mode, oxygen flows out continuously; in the lung oxygen supply mode, the negative pressure sensing port 5 controls the opening and closing of the lung component by sensing the negative pressure of the patient's breathing, and only supplies oxygen when the patient inhales, thereby achieving an oxygen saving rate of ≥67%; and realizing on-demand oxygen supply.

[0058] In this embodiment, in the gas outlet assembly, the oxygen outlet 4 and the negative pressure sensing port 5 are arranged side by side, and both are connected to corresponding conduit interfaces.

[0059] In this embodiment, the square outer shell is made of aluminum alloy and has anti-slip texture and visual marking area on the surface to clearly mark the working mode, airflow status and safety warning information, so as to comply with the hospital's clinical operation specifications.

[0060] Example 2 Table 1 shows a comparison between the use of the dual-mode mechanical oxygen supply device for hospital emergency care according to the present invention and a traditional oxygen supply device. Table 1 The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A dual-mode mechanical oxygen supply device for hospital emergency care, comprising an oxygen supply control body (1), a connecting assembly (7), a flow regulation assembly, a mode switching switch (3), and an air outlet assembly, characterized in that, The oxygen supply control unit (1), as the integrated core of the equipment, integrates a pressure stabilizing component and a high-precision lung-type component to provide stable oxygen output in emergency situations; the connecting component (7) is located on one side of the oxygen supply control unit (1) and connects to the valve of a hospital high-pressure steel cylinder or the vaporization interface of a liquid oxygen tank; the gas outlet component is located on the other side of the oxygen supply control unit (1) and includes an oxygen outlet (4) and a negative pressure sensing port (5); the flow rate adjustment component is located on the oxygen supply control unit (1) to adjust the oxygen supply flow rate; the mode switching switch (3) is located on the oxygen supply control unit (1). The upper part is used to switch between DC oxygen supply mode and lung oxygen supply mode; the humidification bottle (6) is detachably installed on the oxygen supply control body (1) to humidify the output oxygen to meet the respiratory care needs of long-term oxygen supply in emergency situations; wherein, the outer shell of the oxygen supply control body (1) is a high-strength square structure, and the length, width and height dimensions are limited to: length 120mm±10mm, width 80mm±10mm, height 60mm±10mm, so as to adapt to the standard equipment installation space and operating table layout in the hospital, reduce the space occupied by the equipment and prevent violent shaking during the transport process.

2. The dual-mode mechanical oxygen supply device for hospital emergency care according to claim 1, characterized in that: The lung-type component includes a diaphragm, a valve core, and a reset spring. The negative pressure sensing port (5) is connected to the air chamber on one side of the diaphragm. Under the action of negative pressure, the diaphragm drives the valve core to open the oxygen supply path. After the negative pressure disappears, the reset spring pushes the valve core to reset and close the air path.

3. A dual-mode mechanical oxygen supply device for hospital emergency care according to claim 1, characterized in that: The flow regulation component includes a float flow meter (8) and a flow regulation knob (2); the float flow meter (8) has a float inside, and the real-time flow rate is determined by the suspension height of the float in the conical tube; the flow regulation knob (2) is used to control the airway opening and closing and the flow rate, and its rotation angle is linearly related to the airway opening, so as to achieve precise control of the wide range of flow rate from 0 to 15 L / min to meet the high flow rate requirements during cardiopulmonary resuscitation or emergency resuscitation.

4. A dual-mode mechanical oxygen supply device for hospital emergency care according to claim 1, characterized in that: The connecting assembly (7) includes a cylinder connector for connecting to the valve of a hospital high-pressure cylinder; a pressure reducer is provided between the connecting assembly (7) and the oxygen supply control body (1) to reduce the input pressure from 15MPa to a working pressure of 0.3-0.8MPa; the cylinder connector has a thread specification of G5 / 8 (approximately 22.911 mm) to match a standard medical oxygen cylinder valve; the interface of the connecting assembly (7) is provided with a leak-proof sealing structure to control the system interface leakage rate to within 1% of the total oxygen supply.

5. A dual-mode mechanical oxygen supply device for hospital emergency care according to claim 4, characterized in that: The pressure reducer is integrated inside the oxygen supply control unit (1).

6. A dual-mode mechanical oxygen supply device for hospital emergency care according to claim 4, characterized in that: The leak-proof sealing structure is a medical-grade O-ring seal set on the joint end face of the connecting component (7) and the oxygen supply control body (1).

7. A dual-mode mechanical oxygen supply device for hospital emergency care according to claim 1, characterized in that: The mode switching switch (3) is a knob-type structure, including two operation positions: DC oxygen supply and lung oxygen supply. In the DC oxygen supply mode, oxygen continuously flows out from the oxygen outlet (4), which is suitable for critical care emergency scenarios where breathing is weak or oxygen is required from a mask. In the lung oxygen supply mode, the airway is connected to the negative pressure sensing port (5), and the oxygen supply pulse is controlled by the respiratory negative pressure. High-concentration oxygen pulses are released only during the patient's inhalation phase to achieve on-demand oxygen supply, and the oxygen saving rate is increased by ≥67%.

8. A dual-mode mechanical oxygen supply device for hospital emergency care according to claim 1, characterized in that: In the gas outlet assembly, the oxygen outlet (4) and the negative pressure sensing port (5) are arranged side by side and are both connected to corresponding conduit interfaces; the conduit interface connected to the oxygen outlet (4) is a conical connector with an outer diameter of 10mm ± 0.5mm, used to connect to a standard oxygen delivery conduit or a breathing mask; the conduit interface connected to the negative pressure sensing port (5) is a straight connector with an inner diameter of 4mm ± 0.3mm, used to connect to a negative pressure sensing tube.

9. A dual-mode mechanical oxygen supply device for hospital emergency care according to claim 1, characterized in that: The square outer shell is made of aerospace aluminum alloy or high-strength engineering plastic, and the surface is provided with anti-slip texture and visual marking area; the visual marking area is provided with fluorescent scale lines and mode indicator marks, which clearly mark the working mode, airflow status and safety warning information in low light environment, so as to comply with the clinical operation standards of hospitals and pre-hospital emergency care.

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