Medical anesthesia air storage bag connection structure

By setting up oxygen and atomization channels in the anesthesia air reservoir connection structure and combining the nebulizer and Mapleson A system, the problems of coughing and wheezing caused by airway constriction and respiratory diseases during inhalation anesthesia are solved, the complexity and instability of atomization treatment are simplified, and rapid and effective supportive treatment is achieved.

CN117398555BActive Publication Date: 2025-10-03TIANJIN CHEST HOSPITAL
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Patent Information

Application Number
CN202311544170.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-17
Publication Date
2025-10-03
Estimated Expiration
2043-11-17

AI Technical Summary

Technical Problem

During inhalation anesthesia, patients may experience coughing and wheezing due to airway constriction or respiratory diseases. In the existing medical system, nebulization treatment is complex and the effect is unstable, and positive pressure ventilation operation is complicated, which affects patient safety.

Method used

A medical anesthesia air reservoir connection structure is designed, which includes an anesthesia machine connector, a connecting shaft, and an air reservoir. The connecting shaft is provided with an oxygen channel and an atomization channel. The channels are switched by rotating the connecting shaft. The structure is combined with a nebulizer and a Mapleson A system to achieve supportive treatment.

Benefits of technology

Without changing the original medical system, the complexity and instability of nebulization therapy are simplified, ensuring the effective delivery of nebulized drugs and ventilation support, quickly relieving bronchospasm and airway inflammation, and improving treatment effects.

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Abstract

The present invention discloses a medical anesthesia air storage bag connection structure, comprising an anesthesia machine connector, a connecting shaft and an air storage bag; the connecting shaft passes through the air storage bag and is sealedly connected to the anesthesia machine connector; the connecting shaft rotates radially within the anesthesia machine connector; an oxygen channel and an atomization channel are respectively arranged along the axial direction of the connecting shaft; the connecting shaft is provided with an air inlet and air outlet connected to the oxygen channel and the atomization channel; the anesthesia machine connector is provided with an air inlet and air outlet corresponding to the oxygen channel and the atomization channel. During the inhalation anesthesia process, if the patient experiences airway constriction due to stimulation by anesthetics, or if the patient's existing respiratory system disease is stimulated, leading to bronchospasm, coughing, and wheezing, supportive treatment can be given without changing the original medical system environment; the complexity and unstable effect of the atomizer introduced in the atomization treatment during the inhalation anesthesia stage are simplified and overcome; and the complexity of positive pressure ventilation in medicine is simplified.
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Description

Technical Field

[0001] The present invention relates to the technical field of medical anesthesia equipment, in particular to a medical anesthesia air storage bag connection structure. Background Art

[0002] In the current field of medical anesthesia equipment, anesthesia reservoir bags are ancillary equipment for anesthesia machines. They consist of an air bag and a gas reservoir. Their sole function is to store and regulate the gas produced by the anesthesia machine to provide the patient with anesthesia, ventilation, and respiratory needs. In manual mode, manual ventilation can be performed by pressing the anesthesia reservoir bag. Their structure and functionality are relatively simple.

[0003] Inhalation anesthesia achieves anesthesia by inhaling anesthetics through the respiratory system. During inhalation anesthesia surgery, the following three factors can trigger the body's emergency response during surgery, which can induce coughing and wheezing in patients. 1. Airway constriction, leading to bronchospasm: Anesthetics may cause bronchial smooth muscle contraction, leading to bronchial stenosis, sudden coughing or wheezing, and in severe cases, worsening the underlying condition. 2. Anesthetic irritation and effects on the airway: Anesthetics have an inhibitory effect on the central and peripheral nervous systems. If administered too rapidly, the body cannot tolerate them and may trigger a cough reflex, resulting in sudden choking and coughing during anesthesia. Additionally, some people may be allergic to anesthetics, triggering allergic reactions. Patients may experience laryngeal edema, difficulty breathing, choking, and other discomfort. Some anesthetics directly irritate the airways, causing airway irritation, inflammation and swelling of the patient's airways, difficulty breathing, coughing and wheezing, and even hypoxemia. For example, isoflurane may cause coughing or wheezing. 3. Others: If the body already has respiratory diseases, such as allergic asthma, pneumonia and other diseases, anesthesia, surgery and other factors may trigger the body's stress response. The above reasons will directly threaten the life of the surgical patient. Although the level of anesthesia has been greatly improved in the past decade, the incidence of intraoperative bronchospasm and anesthetic drug stimulation leading to respiratory inflammation in patients has not decreased significantly. Therefore, it is of great significance for physicians to prevent and treat the occurrence of perioperative bronchospasm and anesthetic drug stimulation leading to respiratory inflammation in patients. It is crucial for medical staff to respond quickly to problems encountered during inhalation anesthesia to ensure the safety of patients' lives. Summary of the Invention

[0004] The present invention provides a medical anesthesia air storage bag structure that simplifies and overcomes the problems of complexity and unstable effect of atomizers introduced in atomization treatment during the inhalation anesthesia stage, simplifies the complexity of positive pressure ventilation in medical treatment, and provides timely supportive treatment without changing the original medical system environment, when the patient experiences airway constriction due to anesthetic stimulation or stimulates existing respiratory diseases in the body, resulting in bronchospasm and coughing and wheezing.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] The present technical solution is a medical anesthesia air storage bag connection structure, which includes an anesthesia machine connector, a connecting shaft and an air storage bag; the connecting shaft passes through the air storage bag and is sealed and connected to the anesthesia machine connector; the connecting shaft rotates radially within the anesthesia machine connector; an oxygen channel and an atomization channel are respectively arranged along the axial direction of the connecting shaft; an air inlet and air outlet connected to the oxygen channel and the atomization channel is provided on the connecting shaft; and the anesthesia machine connector is provided with air inlet and air outlet corresponding to the oxygen channel and the atomization channel.

[0007] As an optimization, the front end of the connecting shaft is a ball head structure, and the anesthesia machine connecting head is a ball seat structure.

[0008] As an optimization, a boss is provided on the ball head structure at the front end of the connecting shaft, and an annular groove that matches the boss is provided in the ball seat structure of the anesthesia machine connecting head; the connecting shaft is sealed and connected to the anesthesia machine connecting head through a connecting piece.

[0009] As an optimization, the atomizing channel on the connecting shaft is a variable diameter structure, and the diameter gradually decreases from the air inlet end to the exhaust end of the atomizing channel.

[0010] As an optimization, a spiral channel is provided at the exhaust end of the atomization channel on the connecting shaft.

[0011] As an optimization, the inclination angle of the spiral channel is 20°, and the radius of the turning point is 6 times the inner diameter of the spiral tube.

[0012] As an optimization, a polytetrafluoroethylene coating is provided on the contact surface between the ball head and the ball seat.

[0013] As an optimization, the oxygen channel and the atomization channel are arranged axially symmetrically along the connecting axis.

[0014] The beneficial technical effects of the present invention are:

[0015] During inhalation anesthesia, if the patient experiences airway constriction due to anesthetic stimulation, or if existing respiratory diseases are stimulated in the body, leading to bronchospasm, coughing, and wheezing, supportive treatment will be given without changing the original medical system.

[0016] The use of the present invention simplifies and overcomes the complexity and unstable effects of the nebulizer introduced during the inhalation anesthesia stage. Without disrupting the original medical method, the introduction speed and concentration of the mixed airflow of the nebulized liquid medicine and air can be ensured, and intervention can be performed in the Maplseon A system to provide supportive treatment while ensuring the patient's oxygen supply. The nebulizer normally introduces nebulized gas, which provides effective drug delivery and ventilation support through the variable diameter structure of the nebulization channel and the spiral channel at the end, providing a better option for the treatment of respiratory diseases such as airway constriction, bronchospasm or irritation and influence of anesthetic drugs on the airway, which induce coughing and wheezing.

[0017] The present invention simplifies the complexity of positive pressure ventilation in medical settings. On the one hand, the nebulizer, combined with the atomizing channel and the spiral channel, achieves positive pressure ventilation, ensuring inspiratory pressure and tidal volume, and respiratory rate can be monitored through fluctuations in the air reservoir. On the other hand, the present invention, when incorporated into the Mapleson A system, ensures effective delivery of atomized gas, achieving a therapeutic effect while maintaining normal respiratory volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0019] Figure 1 It is a schematic diagram of the system structure of the present invention placed in Mapleson A.

[0020] Figure 2 It is a schematic diagram of the main structure of the present invention.

[0021] Figure 3 is Figure 2 On the basis of the cross-sectional structural diagram, the front end of the connecting shaft is a ball head structure, and the anesthesia pipeline connecting head is a ball-concave structure.

[0022] Figure 4 is Figure 3 Based on the above, a schematic cross-sectional structure diagram of the split connection between the connecting shaft and the anesthesia pipeline connector is provided.

[0023] Figure 5 yes Figure 2 On the basis of the cross-sectional structural diagram, the front end of the connecting shaft is a ball-like head structure, and the anesthesia pipeline connecting head is a ball-like concave structure.

[0024] Figure 6 This is a schematic diagram of the main structure of the present invention, in which the exhaust end of the atomization channel has a spiral channel.

[0025] Figure 7 is Figure 6On the basis of the cross-sectional structural diagram, the front end of the spiral channel on the connecting shaft is a ball head structure, and the anesthesia pipeline connecting head is a ball-concave structure.

[0026] Figure 8 is Figure 6 Based on the above, a schematic cross-sectional structure diagram of the split connection between the connecting shaft and the anesthesia pipeline connector is provided.

[0027] Reference numerals: fresh gas flow FGF, air reservoir structure RB, adjustable pressure limiting valve APL, patient Pt;

[0028] Anesthesia pipeline connector 1, connecting shaft 2, air storage bag 3, oxygen channel 4, atomization channel 5, air inlet and exhaust port 6, air inlet and exhaust channel 7, boss 8, annular groove 9, spiral channel 10, connecting piece 11. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings.

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] Example 1, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 ,and Figure 5As shown in FIG, the present invention is a medical anesthesia air reservoir connection structure. This system is schematically shown as being incorporated into a Mapleson A system. The Mapleson A is a semi-closed breathing loop system, in which the adjustable pressure limiting valve (APL) is open, allowing excess gas to escape from the system, thereby reducing the risk of barotrauma. The air reservoir structure RB of the present invention is located within the Mapleson A system. The present invention connects to the anesthesia machine via an anesthesia machine connector 1. The structure comprises the anesthesia machine connector 1, a connecting shaft 2, and an air reservoir 3. The connecting shaft 2 passes through the air reservoir 3 and is sealedly connected to the anesthesia machine connector 1. The air reservoir 3 is integrally fixed to the connecting shaft 2. The connecting shaft 2 rotates radially within the anesthesia machine connector 1. An oxygen channel 4 and an atomization channel 5 are axially disposed along the connecting shaft 2. The connecting shaft 2 is provided with an inlet and outlet port 6 communicating with the oxygen channel 4 and the atomization channel 5. The anesthesia machine connector 1 is provided with inlet and outlet channels 7 corresponding to the oxygen channel 4 and the atomization channel 5. The front end of the connecting shaft 2 is a spherical head structure, while the anesthesia machine connector 1 is a spherical seat structure. A boss 8 is provided on the ball head structure at the front end of the connecting shaft 2, and an annular groove 9 is provided in the ball seat structure of the anesthesia machine connector 1, which is concave-convex matched with the boss 8; the connecting shaft 2 is threadedly sealed with the anesthesia machine connector 1 through a connector 11, and an annular sealing ring can be provided on the threaded connection to enhance the sealing performance.

[0032] Based on this embodiment, a polytetrafluoroethylene (PTFE) coating is applied to the contact surface between the ball head at the front end of the connecting shaft 2 and the ball seat on the anesthesia machine connector 1. This coating improves the rotational efficiency and safety of the contact surface between the ball head and the ball seat. The oxygen passage 4 and the atomization passage 5 are arranged symmetrically along the axis of the connecting shaft 2.

[0033] The medical anesthesia air reservoir connection structure of the present invention is used during inhalation anesthesia surgery. It is threaded and sealed with the anesthesia machine connector 1 via a connector 11, and is integrated into the Mapleson A breathing system circuit. Before preparing for anesthesia, medical personnel manually rotate the connecting shaft 2 to connect the oxygen channel 4 on the connecting shaft 2 with the inlet and exhaust channels 7. The air reservoir 3 is then connected to the gas inlet of the anesthesia machine via the connector 11, the anesthesia machine connector 1, and the pipeline. The anesthesia air reservoir is in normal operating condition. At this time, the left channel of the atomization channel 5 is closed, and the atomization channel 5 is not in operation.

[0034] During inhalation anesthesia surgery, when a patient coughs and wheezes, the anesthesiologist diagnoses that the patient's cough and wheezing are caused by the stimulation and influence of the anesthetic on the patient's airway, resulting in airway constriction and bronchospasm, based on the patient's condition, depth of anesthesia, respiratory condition, oxygen saturation, blood pressure and other indicators, as well as the effects of anesthetic drugs. In this case, the anesthesia machine anesthesia administration is stopped in time, and supportive treatment measures are taken. The medical staff manually rotates the connecting shaft 2 to connect the atomization channel 5 on the connecting shaft 2 with the inlet and exhaust channels 7. The atomization channel 5 is connected to the inside of the air storage bag 3 through the inlet and exhaust ports 6. The left end of the atomization channel 5 on the connecting shaft 2 is connected to the medical nebulizer through a quick connector. The oxygen supply of the anesthesia machine is stopped, and the nebulizer is connected to perform positive pressure atomization ventilation. In combination with the patient's oral and facial breathing mask, it directly acts on the respiratory tract and lungs. On the basis of not destroying or interfering with existing medical technical means, relevant treatment measures are introduced to complement the original medical means and provide supportive treatment to the patient. The fast onset of effect is very important for relieving acute bronchospasm and airway inflammation. During the patient's nebulized inhalation treatment, the patient's spontaneous breathing state is observed and judged by the fluctuations of the air storage bag 3. Bronchodilators, such as salbutamol, are used in medical nebulizers to dilate the bronchi; drugs such as aminophylline can also be used to relieve bronchospasm. Through the structure of the present invention, timely access to the nebulizer for treatment is quick and easy to use, and no invasive injection treatment measures are required, which is particularly important for children, the elderly, or patients with more serious conditions. In addition, during the anesthesia process, oral medications or intravenous drips cannot achieve fast and accurate medical treatment.

[0035] Example 2, as Figure 1 、 Figure 6 、 Figure 7 and Figure 8As shown in the figure, a medical anesthesia air storage bag connection structure includes an anesthesia machine connector 1, a connecting shaft 2, and an air storage bag 3. The connecting shaft 2 passes through the air storage bag 3 and is sealedly connected to the anesthesia machine connector 1. The structure of the present invention is connected to the anesthesia machine via the anesthesia machine connector 1. The connecting shaft 2 rotates radially within the anesthesia machine connector 1. An oxygen channel 4 and an atomization channel 5 are respectively arranged along the axial direction of the connecting shaft 2. The connecting shaft 2 is provided with an inlet and outlet port 6 connected to the oxygen channel 4 and the atomization channel 5. The anesthesia machine connector 1 is provided with an inlet and outlet channel 7 corresponding to the oxygen channel 4 and the atomization channel 5. The front end of the connecting shaft is a ball head structure, and the anesthesia machine connector 1 is a ball seat structure. The ball head structure at the front end of the connecting shaft 2 is provided with a boss 8, and the ball seat structure of the anesthesia machine connector 1 is provided with an annular groove 9 that matches the boss 8. The connecting shaft 2 is threaded and sealed to the anesthesia machine connector 1 via a connector 11. An annular sealing ring may be provided at the threaded connection to enhance sealing. The atomizing channel 5 on the connecting shaft 2 is a variable diameter structure, with the diameter gradually decreasing from the air inlet end to the air outlet end of the atomizing channel 5. A spiral channel 10 is provided at the air outlet end of the atomizing channel 5 on the connecting shaft 2. The spiral channel 10 has an inclination angle of 20° and a radius at the turning point of 6 times the inner diameter of the spiral tube.

[0036] The medical anesthesia air reservoir connection structure of the present invention is used during inhalation anesthesia surgery. It is threaded and sealed with the anesthesia machine connector 1 via a connector 11, and is integrated into the Mapleson A breathing system circuit. Before preparing for anesthesia, medical personnel manually rotate the connecting shaft 2 to connect the oxygen channel 4 on the connecting shaft 2 with the inlet and exhaust channels 7. The air reservoir 3 is then connected to the gas inlet of the anesthesia machine via the connector 11, the anesthesia machine connector 1, and the pipeline. The anesthesia air reservoir is in normal operating condition. At this time, the left channel of the atomization channel 5 is closed, and the atomization channel 5 is not in operation.

[0037] During the inhalation anesthesia surgery, when the patient coughs and wheezes, the anesthesiologist diagnoses that the patient's cough and wheezing are caused by the stimulation and influence of the anesthetic on the patient's airway, resulting in airway constriction and bronchospasm, based on the patient's condition, anesthesia depth, respiratory condition, oxygen saturation, blood pressure and other indicators, as well as the effects of anesthetic drugs. In this case, the anesthesia machine anesthesia administration is stopped in time and supportive treatment measures are taken. The medical staff manually rotates the connecting shaft 2 to connect the atomization channel 5 on the connecting shaft 2 with the inlet and exhaust channels 7. The atomization channel 5 is connected to the inside of the air storage bag 3 through the inlet and exhaust ports 6. The left end of the atomization channel 5 on the connecting shaft 2 is connected to the medical nebulizer through a quick connector. The tidal volume, respiratory rate and positive end-inspiratory pressure are adjusted. The nebulizer converts the drug solution into tiny mist particles. The mixed gas of the atomized drug and air passes through the atomization channel 5. The mixed gas passes through the atomization channel 5 with a diameter gradually decreasing from the inlet end to the exhaust end, and then passes through the spiral channel 10. The mixed gas forms a vortex and enters the Mapleson The A breathing circuit system, combined with a patient's oral and facial breathing mask, directly targets the respiratory tract and lungs. Without disrupting or interfering with existing medical technologies, it introduces relevant treatments, complementing existing treatments and providing timely supportive care. Its rapid onset of action is crucial for alleviating acute bronchospasm and airway inflammation. During nebulized inhalation therapy, medical staff can observe and assess the patient's spontaneous breathing status by observing the fluctuations in the air reservoir 3. The variable diameter structure of the atomizing channel 5, located within the connecting shaft 2, combined with the external spiral channel 10, reduces the nebulizer's input pressure, ensuring that a small nebulizer can meet positive pressure nebulization ventilation requirements while also improving drug delivery efficiency. The atomized mixed gas enters the Mapleson A breathing circuit system, is inhaled by the patient through the oral and facial breathing mask, and directly targets the respiratory tract and lungs, improving drug absorption and targeting the affected area, enhancing the therapeutic effect.

[0038] Current medical practices using nebulizers during inhalation anesthesia present challenges: The technical complexity of the device; correctly connecting the nebulizer to the anesthesia machine or ventilator; and adjusting the nebulizer's airflow rate and concentration. Unstable results: The effectiveness of nebulized medication delivery is affected by multiple factors, including the nebulizer's airflow rate and concentration, the condition of the respiratory tract, and the patient's breathing pattern. These variations can cause fluctuations in the concentration of the inhaled nebulized medication, thus affecting the stability of the nebulization effect.

[0039] In the present invention, in the Mapleson A system, when the patient begins to exhale, the dead space gas is exhaled first. Because the dead space gas does not undergo gas exchange, its gas composition is the same as the gas composition inhaled by the patient. These gases enter the threaded tube, and at the same time, the mixed air flow of atomized liquid and air produced by the nebulizer fills the remaining threaded tube and the air storage bag. When the pressure in the circuit increases, the patient continues to exhale, and the alveolar gas that has undergone gas exchange is discharged through the APL valve. When the patient takes the next breath, the dead space gas in the previous breath is inhaled, and then the mixed gas of atomized liquid and air that is positively pressure-delivered from the nebulizer through the atomization channel 5 and the spiral channel 10 is inhaled. On the atomization channel 5, from the air inlet end to the exhaust end, the channel diameter gradually decreases and the spiral channel 10 is set at an inclination angle of 20°, which increases the atomized gas airflow velocity and vortex effect, increases the mixed gas pressure, and helps to improve the atomization effect. The radius of the turning point of the spiral channel 10 is 6 times that of the inner diameter of the spiral tube, which reduces the airflow resistance, allows the atomized mixed airflow to pass through the turning point more smoothly, reduces energy loss, and allows a larger flow of gas to pass through the turning point smoothly without causing blockage or reducing the atomization effect. The atomized mixed airflow is accelerated after passing through the turning point, further increasing the airflow speed and increasing the vortex effect, ensuring the introduction concentration and introduction speed of the atomized liquid medicine, thereby improving the atomization treatment effect and meeting the atomization treatment needs of the patient. The use of the present invention simplifies and overcomes the complexity and unstable effect of the atomizer introduced in the atomization treatment during the inhalation anesthesia stage. Without destroying the original medical method, the introduction speed and concentration of the mixed airflow of the atomized liquid medicine and air can be ensured, intervention is performed in the Maplseon A system, and when the anesthesia machine stops supplying oxygen, supportive treatment is given while ensuring the patient's oxygen supply. The nebulizer normally introduces atomized gas, which, through the variable diameter structure of the atomization channel and the spiral channel at the end, provides effective drug delivery and ventilation support. This provides a better option for the treatment of respiratory diseases such as cough and wheezing caused by airway constriction, bronchospasm, or irritation and effects of anesthetic drugs on the airway. Rapid drug delivery and ventilation support improve the patient's condition.

[0040] The complexity of implementing positive pressure ventilation in current medical practice includes the following aspects: Equipment selection and setup. Select a positive pressure ventilation device that suits the patient's condition and needs, and perform the correct setup and adjustments. Different devices have different functions and parameters, and medical staff need to be familiar with the device's operation and adjustment methods. Monitoring and adjustment: Positive pressure ventilation requires real-time monitoring and adjustment of the patient's ventilator parameters, such as respiratory rate, inspiratory pressure, and tidal volume. Medical staff need to understand the patient's respiratory condition and make timely adjustments to avoid harm to the patient due to over-ventilation or under-ventilation.

[0041] The present invention is incorporated into the Mapleson A system. The required nebulization gas volume per minute is calculated based on the calculations. Based on body weight, the required nebulization gas volume per minute is 1-2 ml / kg. For example, for a patient weighing 70 kg, the required nebulization gas volume per minute is 70-140 ml / min. The nebulizer generates a mixture of aerosolized medication and air, which enters the gas reservoir 3 through the aerosol channel 5 and the spiral channel 10. The Mapleson A system consists of a gas reservoir and an APL valve near the patient end. During exhalation, the patient's exhaled gas enters the gas reservoir 3. During inhalation, the gas reservoir 3 deflates and provides fresh nebulized gas and air to the patient. The APL valve, located between the gas reservoir 3 and the patient end, adjusts resistance as needed to control gas flow and end-expiratory pressure. During exhalation, the APL valve opens, allowing some exhaled gas to pass through while also allowing the mixture of aerosolized gas and air to enter the gas reservoir 3. This ensures that the patient is provided with sufficient nebulized gas during exhalation, minimizing the risk of re-inhalation. This invention simplifies the complexity of positive pressure ventilation in medical settings. On the one hand, the nebulizer, combined with the atomizing channel and spiral channel, achieves positive pressure ventilation, ensuring inspiratory pressure and tidal volume, and respiratory rate can be monitored through fluctuations in the air reservoir. On the other hand, the invention, incorporated into the Mapleson A system, ensures effective delivery of atomized gas, achieving a therapeutic effect while maintaining normal respiratory volume.

[0042] Connecting shaft 2 can be equipped with clear markings and indicators for oxygen channel 4 and atomization channel 5, allowing medical staff to accurately switch between them in different scenarios. This improves operational convenience and allows for timely supportive treatment. Medical staff should be able to quickly and accurately switch from manual airbag supply mode to atomization therapy mode, improving medical operation efficiency.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A medical anesthesia air storage bag connection structure, characterized in that: The anesthesia machine comprises an anesthesia machine connector, a connecting shaft and an air storage bag; the connecting shaft passes through the air storage bag and is sealed and connected to the anesthesia machine connector; the connecting shaft radially rotates in the anesthesia machine connector; an oxygen channel and an atomization channel are respectively arranged along the axial direction of the connecting shaft; an inlet and exhaust port connected to the oxygen channel and the atomization channel is provided on the connecting shaft; and the anesthesia machine connector is provided with an inlet and exhaust channel corresponding to the oxygen channel and the atomization channel.

2. The medical anesthesia air storage bag connection structure according to claim 1, characterized in that: The front end of the connecting shaft is a ball head structure, and the anesthesia machine connecting head is a ball seat structure.

3. The medical anesthesia air storage bag connection structure according to claim 2, characterized in that: A boss is provided on the ball head structure at the front end of the connecting shaft, and an annular groove that matches the boss is provided in the ball seat structure of the anesthesia machine connecting head; the connecting shaft is sealed and connected to the anesthesia machine connecting head through a connecting piece.

4. The medical anesthesia air storage bag connection structure according to any one of claims 1, 2 or 3, characterized in that: The atomizing channel on the connecting shaft is a variable diameter structure, and the diameter gradually decreases from the air inlet end to the air outlet end of the atomizing channel.

5. The medical anesthesia air storage bag connection structure according to claim 4, characterized in that: A spiral channel is provided on the exhaust end of the atomization channel on the connecting shaft.

6. The medical anesthesia air storage bag connection structure according to claim 5, characterized in that: The inclination angle of the spiral channel is 20°, and the radius of the turning point is 6 times the inner diameter of the spiral channel.

7. The medical anesthesia air storage bag connection structure according to claim 2 or 3, characterized in that: A polytetrafluoroethylene coating is provided on the contact surface between the ball head and the ball seat.

8. The medical anesthesia air storage bag connection structure according to claim 1, characterized in that: The oxygen channel and the atomization channel are axially symmetrically arranged along the connecting axis.

Citation Information

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