A medical surgical auxiliary breathing device for cricothyroid membrane puncture

CN122605056APending Publication Date: 2026-08-21QINGDAO SPLENDID MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202611023260.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-10
Publication Date
2026-08-21

AI Technical Summary

Technical Problem

[0003]目前临床普遍采用手动挤压呼吸气囊的方式为患者提供辅助呼吸,长时间操作易导致操作者疲劳,进而出现按压频率不稳、力度不均的问题,无法保证稳定的潮气量和通气频率,严重影响抢救效果;特别是在单人急救场景下,操作者需要同时兼顾穿刺部位固定、气道管理和气囊按压,难以做到三者兼顾,增加了抢救失败的风险;因此我们设计了一种便于操作的医用外科环甲膜穿刺辅助呼吸装置来解决以上问题

Benefits of technology

[0016]1、实现自动化呼吸支持:通过电机驱动的凸轮-摆臂机构自动按压呼吸气囊,替代了传统的人工手动按压,能够提供稳定、连续的呼吸支持,避免了操作者疲劳导致的按压频率和力度不稳定问题。步进电机配合控制面板可精确调节按压频率,能够满足不同年龄、不同体重患者的个性化呼吸需求。

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Abstract

The application discloses a medical surgical cricothyroid membrane puncture auxiliary breathing device convenient to operate, which comprises a puncture assembly, a sealing assembly, an automatic pressing air conveying mechanism and an air conveying assembly; the automatic pressing air conveying mechanism comprises a shell, a breathing air bag, a driving unit and a pressing unit, one end of the shell is fixedly connected with a supporting plate, and the breathing air bag is placed on the upper surface of the supporting plate; the driving unit comprises a motor fixedly installed on the shell, a cam is coaxially and fixedly connected with the tail end of the output shaft of the motor, and an oscillating arm is eccentrically and rotationally connected with the end face of the cam away from the motor. The automatic pressing air conveying mechanism replaces manual operation, can provide stable and continuous breathing support, reliable sealing and fixing between the puncture assembly and the air conveying assembly are realized through the sealing air bag, standard luer taper connectors are adopted to realize quick connection between the components, the emergency rescue time is greatly shortened, and a safety valve is additionally arranged to ensure safety.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an easy-to-operate medical surgical cricothyroid membrane puncture assisted breathing device. Background Technology

[0002] Cricothyroid membrane puncture is a crucial procedure in clinical emergency care to save the lives of patients with upper airway obstruction. Its core objective is to establish a temporary artificial airway by penetrating the cricothyroid membrane between the thyroid cartilage and cricoid cartilage, thus gaining valuable time for endotracheal intubation and tracheotomy. This technique is simple, quick, and effective, and is an important component of on-site emergency care and in-hospital emergency treatment.

[0003] Currently, the common clinical practice is to manually compress the breathing bag to provide assisted breathing for patients. However, prolonged operation can easily lead to operator fatigue, resulting in unstable compression frequency and uneven force, making it impossible to guarantee a stable tidal volume and ventilation rate, which seriously affects the resuscitation outcome. Especially in single-person emergency scenarios, the operator needs to simultaneously maintain puncture site fixation, airway management, and bag compression, making it difficult to manage all three simultaneously and increasing the risk of resuscitation failure. Therefore, we have designed an easy-to-use medical surgical cricothyroid membrane puncture assisted breathing device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an easy-to-operate medical surgical cricothyroid membrane puncture assisted breathing device. This device provides stable and continuous respiratory support by replacing manual operation with an automatic press-to-feed mechanism; it achieves reliable sealing and fixation between the puncture component and the feeding component through a sealing airbag; it uses a standardized Luer conical joint to achieve rapid connection between the components, significantly shortening emergency rescue time; and it is equipped with a safety valve to ensure safe use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An easy-to-operate medical surgical cricothyroid membrane puncture assisted breathing device includes a puncture assembly, a sealing assembly, an automatic compression and delivery mechanism, and a delivery assembly. The automatic compression and delivery mechanism includes a housing, a breathing bag, a drive unit, and a compression unit. A support plate is fixedly connected to one end of the housing, and the breathing bag is placed on the upper surface of the support plate. The drive unit includes a motor fixedly mounted on the housing. A cam is coaxially fixedly connected to the end of the motor's output shaft. A swing arm is eccentrically rotatably connected to the end face of the cam away from the motor, and a slider is fixedly connected to the end of the swing arm. The compression unit includes a rotating shaft rotatably connected to the housing. A pressure arm is fixedly connected to the outer wall of the rotating shaft. A sliding groove is formed through the pressure arm, and the slider passes through and is slidably connected to the sliding groove. The pressure plate is fixedly connected to the end of the pressure arm away from the rotation axis, and the pressure plate is located directly above the breathing bag; the puncture assembly includes a syringe and a needle, one end of the syringe is inserted into the needle, and the end of the syringe away from the needle has a groove communicating with the inside of the needle; the sealing assembly includes a first gas delivery tube, one end of the first gas delivery tube can be inserted into the groove and is sealed and communicated with the syringe, a sealing bag is fixedly sleeved on the outer wall of the first gas delivery tube, the sealing bag is fixedly connected to a connecting tube, a one-way valve and an exhaust valve are fixedly connected to the outer wall of the connecting tube respectively, an external connector is fixedly connected to the end of the connecting tube away from the sealing bag, and a first male connector is fixedly connected to the other end of the first gas delivery tube; the gas delivery assembly includes a first female connector, a rubber air tube and a second female connector fixedly connected in sequence.

[0007] Preferably, the tail end of the breathing bag is fixedly connected to an air inlet tube and an insertion tube, and the outer wall of the air inlet tube is fixedly connected to a first one-way valve; the head end of the breathing bag is fixedly connected to a connecting tube, and the outer wall of the connecting tube is fixedly connected to a second one-way valve, a safety valve and a breathing valve respectively, and the connecting tube and the second female connector can be inserted and sealed.

[0008] Preferably, the sealing airbag is an annular elastic medical airbag, and the sealing airbag is isolated from the first air delivery tube.

[0009] Preferably, a control panel is fixedly connected to the side wall of the housing, and the motor is a stepper motor, which is electrically connected to the control panel.

[0010] Preferably, the upper surface contour of the support plate is adapted to the lower surface contour of the breathing bag, and the pressure plate is an arc-shaped pressure plate, the curvature of the lower surface of the pressure plate matching the curvature of the upper surface of the breathing bag.

[0011] Preferably, the first one-way valve is unidirectionally directed from the air inlet pipe to the inside of the breathing bag, and the second one-way valve is unidirectionally directed from the inside of the breathing bag to the connecting pipe.

[0012] Preferably, the first female connector and the first male connector can be plugged into and sealed together.

[0013] Preferably, the connection ends of the first male connector and the first female connector, and the second female connector and the connecting pipe are all medical Luer conical connectors.

[0014] Preferably, a medical silicone anti-slip pad is fixedly connected to the upper surface of the support plate, and the medical silicone anti-slip pad is in close contact with the lower surface of the breathing bag.

[0015] Compared with the prior art, the beneficial effects of this invention are as follows:

[0016] 1. Automated Respiratory Support: A motor-driven cam-arm mechanism automatically compresses the breathing bag, replacing traditional manual compression. This provides stable and continuous respiratory support, avoiding instability in compression frequency and force due to operator fatigue. The stepper motor, combined with the control panel, allows for precise adjustment of the compression frequency, meeting the personalized respiratory needs of patients of different ages and weights.

[0017] 2. A ring-shaped sealing airbag is used to seal and fix the puncture needle and the first air delivery tube. The inflated sealing airbag can fit tightly against the inner wall of the needle groove, which can not only effectively prevent respiratory gas leakage, but also play a dual role in axial and radial fixation of the first air delivery tube, preventing it from falling off during patient agitation or transportation.

[0018] 3. All components are connected using standardized medical Luer conical connectors, which have excellent sealing performance and can be quickly plugged in and unplugged, reducing the time from successful puncture to establishing an effective airway to less than 1 minute, greatly improving the efficiency of emergency rescue.

[0019] 4. A safety valve is installed on the connecting tube of the breathing bag, which can monitor the airway pressure in real time. When the pressure exceeds the preset safety threshold, it will automatically open to release pressure and avoid damage to the patient's airway mucosa due to excessive air pressure.

[0020] In summary, this invention provides stable and continuous respiratory support by replacing manual operation with an automatic press-to-feed mechanism; it achieves reliable sealing and fixation between the puncture and delivery components through a sealing airbag; it uses a standardized Luer conical connector to achieve rapid connection between the components, significantly shortening emergency rescue time; and it is equipped with a safety valve to ensure safe use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the first structure of a medical surgical cricothyroid membrane puncture assisted breathing device that is easy to operate, as proposed in this invention.

[0022] Figure 2This is a schematic diagram of the second structure of a medical surgical cricothyroid membrane puncture assisted breathing device that is easy to operate, as proposed in this invention.

[0023] Figure 3 This is a schematic diagram of the puncture component, sealing component, and gas delivery component in a medical surgical cricothyroid membrane puncture assisted breathing device that is easy to operate according to the present invention.

[0024] Figure 4 This is a schematic diagram of the puncture component in a medical surgical cricothyroid membrane puncture-assisted breathing device that is easy to operate according to the present invention.

[0025] Figure 5 This is a schematic diagram of the sealing component in a medical surgical cricothyroid membrane puncture assisted breathing device that is easy to operate according to the present invention;

[0026] Figure 6 This is a schematic diagram of the automatic pressure-operated gas delivery mechanism in a medical surgical cricothyroid membrane puncture assisted breathing device proposed in this invention;

[0027] Figure 7 This is a schematic diagram of the breathing bag structure in a medical surgical cricothyroid membrane puncture assisted breathing device that is easy to operate according to the present invention.

[0028] Figure 8 This is a first structural schematic diagram of the drive unit and pressing unit in a medical surgical cricothyroid membrane puncture assisted breathing device that is easy to operate according to the present invention.

[0029] Figure 9 This is a second structural schematic diagram of the drive unit and pressing unit in a medical surgical cricothyroid membrane puncture assisted breathing device that is easy to operate according to the present invention.

[0030] In the diagram: 1 Syringe, 2 Needle, 3 Groove, 4 First air supply tube, 5 Sealing airbag, 6 Connecting tube, 7 External connector, 8 One-way valve, 9 Exhaust valve, 10 First male connector, 11 First female connector, 12 Rubber air tube, 13 Second female connector, 14 Air inlet tube, 15 First one-way valve, 16 Insertion tube, 17 Connecting tube, 18 Safety valve, 19 Breathing valve, 20 Second one-way valve, 21 Control panel, 22 Motor, 23 Cam, 24 Swing arm, 25 Slider, 26 Pressure arm, 27 Sliding groove, 28 Rotating shaft, 29 Pressure plate, 30 Support plate, 31 Breathing airbag, 32 Housing. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] Reference Figures 1-9 An easy-to-use medical surgical cricothyroid membrane puncture assisted breathing device includes a puncture assembly, a sealing assembly, an automatic press-to-feed gas mechanism, and a gas delivery assembly. The puncture assembly includes a syringe 1 and a needle 2. One end of the syringe 1 is inserted into the needle 2 for easy and quick replacement and removal of the needle 2. Different sized needles 2 can accommodate the puncture needs of patients of different ages. The end of the syringe 1 away from the needle 2 has a groove 3 that communicates with the inside of the needle 2, for docking with the sealing assembly to form a continuous gas delivery channel.

[0033] The sealing assembly includes a first gas delivery tube 4, one end of which can be inserted into a groove 3 and sealed and connected to a syringe 1. A sealing airbag 5 is fixedly sleeved on the outer wall of the first gas delivery tube 4. The sealing airbag 5 is an annular elastic medical airbag, and the sealing airbag 5 is isolated from the first gas delivery tube 4 to prevent cross-mixing of the sealing gas and the breathing gas, thus ensuring the cleanliness of the breathing gas. A connecting tube 6 is fixedly connected to the sealing airbag 5. A one-way valve 8 and an exhaust valve 9 are fixedly connected to the outer wall of the connecting tube 6. The one-way valve 8 is used to prevent the gas in the sealing airbag 5 from flowing back and to maintain a stable sealing pressure. The exhaust valve 9 is used to quickly release the gas in the sealing airbag 5 after surgery, so that the device can be safely removed. An external connector 7 is fixedly connected to the end of the connecting tube 6 away from the sealing airbag 5 for connecting an external syringe to inflate the sealing airbag 5. A first male connector 10 is fixedly connected to the other end of the first gas delivery tube 4.

[0034] The gas delivery assembly includes a first female connector 11, a rubber air tube 12, and a second female connector 13 that are fixedly connected in sequence. The first female connector 11 and the first male connector 10 can be plugged in and sealed. The connection ends of the first male connector 10 and the first female connector 11, and the second female connector 13 and the connecting tube 17 are all medical Luer conical connectors, which have excellent sealing performance and can achieve quick plugging and unplugging connection, greatly shortening the device assembly time during emergency rescue.

[0035] The automatic compression and air delivery mechanism includes a housing 32, a breathing bag 31, a drive unit, and a compression unit. A support plate 30 is fixedly connected to one end of the housing 32. The upper surface contour of the support plate 30 matches the lower surface contour of the breathing bag 31, and a medical silicone anti-slip pad is fixedly connected to the upper surface of the support plate 30. The medical silicone anti-slip pad is in close contact with the lower surface of the breathing bag 31, effectively preventing the breathing bag 31 from shifting during compression. The breathing bag 31 is placed on the upper surface of the support plate 30. An air inlet pipe 14 and an insertion pipe 16 are fixedly connected to the tail end of the breathing bag 31. A first... One-way valve 15, the first one-way valve 15 conducts unidirectionally from the air inlet pipe 14 to the inside of the breathing bag 31. The head end of the breathing bag 31 is fixedly connected to the connecting pipe 17. The outer wall of the connecting pipe 17 is fixedly connected to the second one-way valve 20, the safety valve 18 and the breathing valve 19 respectively. The second one-way valve 20 conducts unidirectionally from the inside of the breathing bag 31 to the connecting pipe 17. The safety valve 18 is used to limit the maximum air pressure output by the breathing bag 31 to avoid damage to the patient's airway mucosa due to excessive air pressure. The breathing valve 19 is used to unidirectionally expel the waste gas exhaled by the patient. The connecting pipe 17 and the second female connector 13 can be plugged in and sealed.

[0036] The drive unit includes a motor 22 fixedly mounted on the housing 32. The motor 22 is a stepper motor. A rechargeable lithium battery pack is installed inside the housing 32 to power the motor 22 and the control panel 21. The control panel 21 is fixedly connected to the side wall of the housing 32. The motor 22 is electrically connected to the control panel 21. The speed and start / stop of the motor 22 can be adjusted through the control panel 21, thereby controlling the frequency of assisted breathing to meet the needs of patients with different conditions. A cam 23 is fixedly connected to the end of the output shaft of the motor 22. A swing arm 24 is eccentrically rotatably connected to the end face of the cam 23 away from the motor 22 (a pin is fixedly connected to the eccentric position of the end face of the cam 23 away from the motor 22, and one end of the swing arm 24 is rotatably connected to the cam 23 through the pin). A slider 25 is fixedly connected to the end of the swing arm 24.

[0037] The pressing unit includes a rotating shaft 28 rotatably connected to the housing 32. A pressing arm 26 is fixedly connected to the outer wall of the rotating shaft 28. A sliding groove 27 is provided through the pressing arm 26. A slider 25 passes through the sliding groove 27 and is slidably connected to the sliding groove 27. A pressing plate 29 is fixedly connected to the end of the pressing arm 26 away from the rotating shaft 28. The pressing plate 29 is an arc-shaped pressing plate. The curvature of the lower surface of the pressing plate 29 matches the curvature of the upper surface of the breathing bag 31. It can press the upper surface of the breathing bag 31 to ensure that the gas output is stable and consistent with each press. The pressing plate 29 is located directly above the breathing bag 31.

[0038] Surgical steps:

[0039] 1. First, locate the puncture point. The operator uses the index finger of the left hand to touch the patient's neck and find the depression between the lower edge of the thyroid cartilage and the upper edge of the cricoid cartilage arch, which is the cricothyroid membrane. The midpoint is determined as the puncture point. For patients with short and thick necks or obesity, careful palpation or ultrasound-assisted positioning can be used to improve the accuracy of puncture.

[0040] 2. Then disinfect and anesthetize. Using iodine solution as the center, routinely disinfect the neck skin with a diameter of ≥10cm, and disinfect at least twice. If time permits, use 2% lidocaine for local infiltration anesthesia at the puncture site. In case of emergency or loss of patient consciousness, the anesthesia step can be omitted.

[0041] 3. Next, perform the puncture procedure. The operator wears sterile gloves, uses the left thumb and middle finger to fix the skin on both sides of the puncture point, and the index finger to confirm the position of the cricothyroid membrane again. The operator holds the syringe 1, needle 2 and piston handle with piston in the right hand and inserts it into the cricothyroid membrane perpendicular to the skin of the neck. When inserting the needle, slowly feel the change in resistance. When there is a clear feeling of loss of resistance, it means that the needle tip has passed through the cricothyroid membrane and entered the laryngeal cavity. The needle depth for adults is about 1-2 cm, and the depth for children should be reduced accordingly. Avoid excessive force to avoid damaging the posterior wall of the trachea or esophagus.

[0042] 4. After the puncture is completed and confirmed to be successful, pull back the piston handle with the piston. If air is drawn out and the air goes in and out with the patient's breathing, that is, the piston moves passively outward during inhalation and inward during exhalation, it indicates that the puncture was successful.

[0043] 5. Finally, establish an oxygen supply channel. After confirming that the needle tip is in the trachea, fix the position of the syringe 1 and needle 2 with medical tape to prevent them from shifting. Pull out the piston handle with the piston and insert the first gas delivery tube 4 along with the sealing air bag 5 into the groove 3 of the syringe 1. Connect the syringe to the external connector 7 and inject air into the sealing air bag 5 through the connecting tube 6 to inflate the sealing air bag 5 until the outer wall of the sealing air bag 5 is tightly against the inner wall of the groove 3 on the syringe 1, thus completing the sealing and fixing between the syringe 1 and the first gas delivery tube 4. Then, connect and fix the first male connector 10 and the first female connector 11, and connect and fix the second female connector 13 to the connecting tube 17. Place the breathing bag 31 on the support plate 30 and between the pressure plate 29 and the support plate 30. Connect and fix the insertion tube 16 to the air sealing bag. Start the motor 22 to realize automatic auxiliary oxygen supply.

[0044] 6. If it is necessary to provide the patient with high concentration of oxygen, the air-sealed bag that is connected to the intubation tube 16 can be removed, connected to the medical oxygen supply machine and sealed, so that the air and oxygen are mixed and injected into the patient's body together.

[0045] The working principle of this device is as follows: When the motor 22 is started through the control panel 21, the output shaft of the motor 22 drives the cam 23 to rotate synchronously. Since the swing arm 24 is eccentrically connected to the end face of the cam 23, the rotation of the cam 23 will drive the swing arm 24 to make eccentric circular motion, which in turn drives the slider 25 to slide back and forth in the sliding groove 27 of the pressure arm 26, and at the same time pushes the pressure arm 26 to swing back and forth around the rotation axis 28, so that the pressure plate 29 periodically presses down and releases the breathing bag 31 upward. When the pressure plate 29 presses down on the breathing bag 31, the internal volume of the breathing bag 31 decreases and the air pressure increases. At this time, the first one-way valve 15 automatically closes to prevent gas from flowing back to the outside from the inlet tube 14, and the second one-way valve 20 automatically opens. The gas in the breathing bag 31 enters the syringe 1 through the connecting tube 17, the second female connector 13, the rubber air tube 12, the first female connector 11, the first male connector 10, and the first air delivery tube 4, and is finally injected into the patient's airway through the needle 2 to complete the air supply. When the pressure plate 29 is lifted up to release the breathing bag, the gas is released. When the air bag 31 is in use, the air bag 31 rebounds due to its own elastic potential energy, increasing its internal volume and decreasing its air pressure. At this time, the second one-way valve 20 automatically closes to prevent gas in the patient's airway from flowing back into the air bag 31, and the first one-way valve 15 automatically opens, allowing outside air to enter the air bag 31 through the air inlet tube 14 to complete the replenishment of air. When the patient exhales, the waste gas in the airway flows back along the above-mentioned air supply path to the connecting tube 17, and is discharged to the outside through the breathing valve 19, thereby realizing a complete inspiratory-expiratory assisted breathing cycle.

[0046] During this process, the safety valve 18 monitors the gas pressure in the connecting tube 17 in real time. When the pressure exceeds the preset safety threshold, it automatically opens to release pressure, preventing excessive air pressure from damaging the patient's airway. After the sealing airbag 5 expands, it can not only achieve a reliable seal between the syringe 1 and the first gas delivery tube 4 to prevent leakage of breathing gas, but also play a dual role in axial and radial fixation of the first gas delivery tube 4 to prevent it from falling off during use. The stepper motor 22, together with the control panel 21, can realize the adjustment of the pressing frequency to meet the personalized breathing needs of patients of different ages and weights. The standardized design of the medical Luer conical connector can realize a quick sealing connection between the components, and the connection strength and sealing performance are high, which can meet the rapid operation requirements in emergency rescue scenarios.

[0047] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A user-friendly medical surgical cricothyroid membrane puncture-assisted breathing device, characterized in that, Includes a puncture assembly, a sealing assembly, an automatic pressure-operated gas delivery mechanism, and a gas delivery assembly; The automatic press-to-feed mechanism includes a housing (32), a breathing bag (31), a drive unit, and a pressing unit. One end of the housing (32) is fixedly connected to a support plate (30), and the breathing bag (31) is placed on the upper surface of the support plate (30). The drive unit includes a motor (22) fixedly mounted on the housing (32). The output shaft of the motor (22) is coaxially fixedly connected to a cam (23). The end face of the cam (23) away from the motor (22) is eccentrically rotatably connected to a swing arm (24). (24) has a slider (25) fixedly connected to its end; the pressing unit includes a rotating shaft (28) rotatably connected to the housing (32), a pressure arm (26) fixedly connected to the outer wall of the rotating shaft (28), a sliding groove (27) is provided through the pressure arm (26), the slider (25) passes through the sliding groove (27) and is slidably connected to the sliding groove (27), and a pressure plate (29) is fixedly connected to the end of the pressure arm (26) away from the rotating shaft (28), the pressure plate (29) is located directly above the breathing bag (31); The puncture assembly includes a syringe (1) and a needle (2). One end of the syringe (1) is inserted into the needle (2), and the end of the syringe (1) away from the needle (2) has a groove (3) that communicates with the inside of the needle (2). The sealing assembly includes a first gas delivery tube (4), one end of which can be inserted into a groove (3) and sealed and connected to a syringe (1). A sealing airbag (5) is fixedly sleeved on the outer wall of the first gas delivery tube (4). A connecting tube (6) is fixedly connected to the sealing airbag (5). A one-way valve (8) and an exhaust valve (9) are fixedly connected to the outer wall of the connecting tube (6). An external connector (7) is fixedly connected to one end of the connecting tube (6) away from the sealing airbag (5). A first male connector (10) is fixedly connected to the other end of the first gas delivery tube (4). The gas delivery assembly includes a first female connector (11), a rubber air tube (12), and a second female connector (13) that are fixedly connected in sequence.

2. The easy-to-operate medical surgical cricothyroid membrane puncture assisted breathing device according to claim 1, characterized in that, The tail end of the breathing bag (31) is fixedly connected to an air inlet pipe (14) and an insertion pipe (16), and the outer wall of the air inlet pipe (14) is fixedly connected to a first one-way valve (15); the head end of the breathing bag (31) is fixedly connected to a connecting pipe (17), and the outer wall of the connecting pipe (17) is fixedly connected to a second one-way valve (20), a safety valve (18) and a breathing valve (19), respectively. The connecting pipe (17) and the second female connector (13) can be inserted and sealed.

3. The easy-to-operate medical surgical cricothyroid membrane puncture assisted breathing device according to claim 1, characterized in that, The sealing airbag (5) is an annular elastic medical airbag, and the sealing airbag (5) is isolated from the first air supply tube (4).

4. The easy-to-operate medical surgical cricothyroid membrane puncture assisted breathing device according to claim 1, characterized in that, The control panel (21) is fixedly connected to the side wall of the housing (32), and the motor (22) is a stepper motor. The motor (22) is electrically connected to the control panel (21).

5. The easy-to-operate medical surgical cricothyroid membrane puncture auxiliary breathing device according to claim 1, characterized in that, The upper surface contour of the support plate (30) is adapted to the lower surface contour of the breathing bag (31), and the pressure plate (29) is an arc-shaped pressure plate, the curvature of the lower surface of the pressure plate (29) matches the curvature of the upper surface of the breathing bag (31).

6. The easy-to-operate medical surgical cricothyroid membrane puncture assisted breathing device according to claim 2, characterized in that, The first one-way valve (15) is unidirectionally connected from the air inlet pipe (14) to the inside of the breathing bag (31), and the second one-way valve (20) is unidirectionally connected from the inside of the breathing bag (31) to the connecting pipe (17).

7. The easy-to-operate medical surgical cricothyroid membrane puncture assisted breathing device according to claim 1, characterized in that, The first female connector (11) and the first male connector (10) can be plugged in and sealed together.

8. The easy-to-operate medical surgical cricothyroid membrane puncture assisted breathing device according to claim 7, characterized in that, The connection ends of the first male connector (10) and the first female connector (11), and the second female connector (13) and the connecting pipe (17) are all medical Luer conical connectors.

9. The easy-to-operate medical surgical cricothyroid membrane puncture assisted breathing device according to claim 7, characterized in that, A medical silicone anti-slip pad is fixedly connected to the upper surface of the support plate (30), and the medical silicone anti-slip pad is in close contact with the lower surface of the breathing bag (31).