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CN-122006033-A - Dual-mode mechanical oxygen supply device for hospital emergency

CN122006033ACN 122006033 ACN122006033 ACN 122006033ACN-122006033-A

Abstract

The invention discloses a dual-mode mechanical oxygen supply device for hospital emergency. The invention relates to the technical field of oxygen-making and oxygen-supplying medical equipment. The system aims to solve the key technical problems of low oxygen utilization rate, frequent steel cylinder replacement, high system leakage rate, poor space adaptability and the like of the traditional emergency oxygen supply system. The integrated direct current oxygen supply and lung type oxygen supply dual mode realizes oxygen supply according to needs through a mode change-over switch, and combines a high-precision negative pressure sensing technology under the lung type mode to realize that the oxygen saving rate is more than or equal to 67 percent and obviously prolong the oxygen supply duration of a single bottle. The compact square structural design is adopted, the external dimension is precisely limited to 120mm multiplied by 80mm multiplied by 60mm, the device is perfectly matched with the installation space of the ambulance first-aid kit and ICU equipment, and the leakage rate is controlled within 1% of the total oxygen supply through the sealing structure. And the integrated decompression, high-precision flow regulation and fluorescent identification system ensures the stability, safety and operation convenience of oxygen supply in a complex emergency environment.

Inventors

  • WEN WEI
  • TENG JIA
  • LI YU
  • LI GANG

Assignees

  • 北京医院
  • 成都洛子科技有限公司

Dates

Publication Date
20260512
Application Date
20260320

Claims (9)

  1. 1. The dual-mode mechanical oxygen supply device for hospital emergency comprises an oxygen supply control main body (1), a connecting component (7), a flow regulating component, a mode change-over switch (3) and an air outlet component, and is characterized in that the oxygen supply control main body (1) is used as an integrated core of equipment, is internally integrated with a pressure stabilizing component and a high-precision lung component, and provides stable oxygen output in an emergency environment; the connecting component (7) is arranged on one side of the oxygen supply control main body (1) and is connected with a high-pressure steel bottle valve or a liquid oxygen tank vaporization interface of a hospital, the air outlet component is arranged on the other side of the oxygen supply control main body (1) and comprises an oxygen outlet (4) and a negative pressure sensing port (5), the flow regulating component is arranged on the oxygen supply control main body (1) and is used for regulating the oxygen supply flow, the mode switching switch (3) is arranged on the oxygen supply control main body (1) and is used for switching between a direct current oxygen supply mode and a lung type oxygen supply mode, the humidifying bottle (6) is detachably arranged on the oxygen supply control main body (1) and is used for humidifying output oxygen so as to adapt to the respiratory tract nursing requirement of long-time oxygen supply in emergency treatment, wherein the shell of the oxygen supply control main body (1) is of a high-strength square structure, the length, the width and the height dimensions are limited to 120 mm+/-10 mm, the width 80 mm+/-10 mm, and the height 60+/-10 mm so as to adapt to the installation space and the layout of standard equipment of a hospital, reduces the occupied space of the equipment and prevents violent shaking in the transferring process.
  2. 2. The dual-mode mechanical oxygen supply device for hospital emergency treatment according to claim 1, wherein the lung type component comprises a diaphragm, a valve core and a reset spring, the negative pressure sensing port (5) is communicated with an air chamber on one side of the diaphragm, the diaphragm drives the valve core to open an oxygen supply air passage under the action of negative pressure, and the reset spring pushes the valve core to reset and close the air passage after the negative pressure disappears.
  3. 3. The dual-mode mechanical oxygen supply device for hospital emergency treatment, which is disclosed in claim 1, is characterized in that the flow regulating assembly comprises a floating ball flowmeter (8) and a flow regulating knob (2), wherein a floating ball is arranged in the floating ball flowmeter (8), the real-time flow is judged through the suspension height of the floating ball in a conical tube, the flow regulating knob (2) is used for controlling the on-off of an air passage and the flow, the rotation angle of the flow regulating knob is in a linear relation with the opening of the air passage, and the wide-range accurate flow regulation and control of 0-15L/min is realized, so that the high flow requirement during cardiopulmonary resuscitation or emergency resuscitation is met.
  4. 4. The dual-mode mechanical oxygen supply device for hospital emergency treatment according to claim 1, wherein the connecting component (7) comprises a steel bottle connector for connecting a high-pressure steel bottle valve of a hospital, a pressure reducer is arranged between the connecting component (7) and the oxygen supply control main body (1) and used for reducing the input pressure from 15MPa to the working pressure of 0.3-0.8 MPa, the screw thread specification of the steel bottle connector is G5/8 (about 22.911 mm) and used for matching a standard medical oxygen steel bottle valve, and a leakage-proof sealing structure is arranged at an interface of the connecting component (7) and used for controlling the leakage rate of a system interface to be within 1% of the total oxygen supply.
  5. 5. A dual mode mechanical oxygen supply for hospital emergency according to claim 4, characterized in that said pressure reducer is integrated inside the oxygen supply control body (1).
  6. 6. A dual mode mechanical oxygen supply for hospital emergency according to claim 4, wherein said leak-proof sealing structure is a medical grade O-ring provided at the joint end face of the connection assembly (7) and the oxygen supply control body (1).
  7. 7. The dual-mode mechanical oxygen supply device for hospital emergency according to claim 1, wherein the mode switch (3) is of a knob type structure and comprises two operation gears of direct current oxygen supply and lung type oxygen supply, oxygen continuously flows out of the oxygen outlet (4) in the direct current oxygen supply mode, the dual-mode mechanical oxygen supply device is suitable for critical emergency scenes with weak breathing or oxygen supply by a mask, the air circuit is communicated with the negative pressure sensing port (5) in the lung type oxygen supply mode, oxygen supply pulses are controlled by breathing negative pressure, high-concentration oxygen pulses are released only in an inhalation phase of a patient, oxygen supply is achieved according to needs, and the oxygen saving rate is improved by more than or equal to 67%.
  8. 8. The dual-mode mechanical oxygen supply device for hospital emergency treatment according to claim 1, wherein in the air outlet assembly, an oxygen outlet (4) and a negative pressure sensing port (5) are arranged side by side and are connected with corresponding conduit connectors, the conduit connectors connected with the oxygen outlet (4) are conical connectors with the outer diameter of 10mm plus or minus 0.5mm and are used for connecting standard oxygen delivery conduits or breathing masks, and the conduit connectors connected with the negative pressure sensing port (5) are straight connectors with the inner diameter of 4mm plus or minus 0.3mm and are used for connecting negative pressure sensing pipes.
  9. 9. The dual-mode mechanical oxygen supply device for hospital emergency treatment according to claim 1, wherein the square shell is made of aviation aluminum alloy or high-strength engineering plastic, an anti-slip texture and a visual identification area are arranged on the surface of the square shell, fluorescent scale marks and mode indication marks are arranged on the visual identification area, and working modes, airflow states and safety warning information are clearly marked in a low-illumination environment so as to meet clinical operation specifications of hospitals and pre-hospital emergency treatment.

Description

Dual-mode mechanical oxygen supply device for hospital emergency Technical Field The invention relates to the technical field of oxygen-making and oxygen-supplying medical equipment, in particular to a dual-mode mechanical oxygen supply device for hospital emergency. Background The emergency oxygen supply is one of the key links of critical patient treatment, especially in the scenes of pre-hospital transportation, emergency department, ICU and the like, the instantaneity, stability and high efficiency of oxygen supply are directly related to the treatment effect of patients. Current hospital emergency oxygen supply mainly depends on steel cylinder oxygen (portable but limited in capacity), liquid oxygen (large in oxygen supply but special in storage), and central oxygen supply system (stable but dependent on pipeline network). However, the emergency scene has the characteristics of strong burst, complex environment, high equipment movement requirement and the like, and the oxygen supply of the steel bottle becomes the main flow oxygen supply mode of emergency due to the flexibility and independence. Existing emergency oxygen supply technology and defects: (1) Core pain point of steel cylinder oxygen in emergency The oxygen utilization rate is low, the oxygen supply of the traditional nasal oxygen tube, mask or saccule adopts a continuous airflow mode, and about 60% -80% of oxygen is directly dissipated into the environment without being inhaled by a patient, so that huge waste is caused. The steel cylinder is frequently replaced, the standard 40L steel cylinder can continuously supply oxygen for about 40 minutes at the flow of 10L/min, and the first-aid transportation or long-time rescue needs to interrupt oxygen treatment for many times to replace the steel cylinder, thereby delaying the treatment. The transportation and management load is that the steel cylinders are heavy (about 60kg, about 50-60L), the transportation needs special personnel to operate, the safety risk of the high-pressure container exists, and the frequent purchasing and detection further increases the operation cost of the hospital. (2) Limitations of existing energy saving technology The recycling type respiratory system, such as a circulation loop of an anesthesia machine, can reduce oxygen consumption, but has complex equipment and needs CO 2 adsorbent, and is not suitable for rapid deployment in emergency situations. On-demand ventilation valve (DEMAND VALVE) that ventilates only when the patient inhales, but the response delay may lead to hypoxia and poor compliance for patients with weak breathing. Liquid oxygen portable equipment, although increasing oxygen storage density, has limited its popularity in first aid due to ultra low temperature storage requirements (-183 ℃) and evaporation loss problems. (3) Systematic losses are not resolved Research shows that multiple leakage points (valves, interfaces and pipelines) exist in the emergency oxygen supply system, the leakage amount cannot be quantified by the traditional leakage detection technology (such as pressure attenuation test), so that hidden oxygen is wasted according to clinical statistics, and the leakage amount of the ambulance oxygen supply system can reach 15% -30% of the total oxygen supply amount due to complex pipelines. Disclosure of Invention In order to solve the technical problems, the invention provides a dual-mode mechanical oxygen supply device for hospital emergency. Comprises an oxygen supply control main body, a connecting component, a flow regulating component, a mode change-over switch and an air outlet component. Specifically, the oxygen supply control main body is used as an integrated core of equipment, and is internally integrated with a voltage stabilizing component and a high-precision lung type component and used for providing stable oxygen output in an emergency environment. Specifically, the connecting component is arranged on one side of the oxygen supply control main body and is used for connecting a high-pressure steel bottle valve or a liquid oxygen tank vaporization interface of a hospital. Specifically, the air outlet assembly is arranged on the other side of the oxygen supply control main body and comprises an oxygen outlet and a negative pressure sensing port. Specifically, the flow regulating assembly is arranged on the oxygen supply control main body and is used for regulating the oxygen supply flow. Specifically, the mode switch is disposed on the oxygen supply control body, and is used for switching between a direct current oxygen supply mode and a lung type oxygen supply mode. Specifically, the humidification bottle is detachably arranged on the oxygen supply control main body and is used for carrying out humidification treatment on output oxygen so as to adapt to the respiratory tract nursing requirement of long-time oxygen supply in emergency treatment. Specifically, the outer shell of the oxygen supply control main body is of