A cricothyroid membrane puncture device and a method of using the same

Abstract

The present invention relates to the technical field of cricothyroid membrane puncture. Specifically, it relates to a cricothyroid membrane puncture device and a method of using the same. The device includes a syringe and a cannula. An airbag that can cooperate with the cannula is arranged on the inner side of the C-shaped sleeve, an airbag inflation valve is arranged on the C-shaped sleeve, an active piston activity chamber is provided on the handle, an active piston is slidably arranged in the active piston activity chamber, a button is arranged on the handle, a slave piston activity chamber connected to a second air path is also provided on the C-shaped sleeve, a slave piston is slidably arranged in the slave piston activity chamber, an airbag exhaust hole that is connected to the inner side of the airbag and passes through the slave piston activity chamber is provided on the C-shaped sleeve, and an annular groove that can be connected to the airbag exhaust hole is provided on the side of the slave piston. In the method of using the C-shaped sleeve, before the C-shaped sleeve is removed from the sleeve, the C-shaped sleeve and the airbag have been out of contact with the sleeve. It is beneficial to reduce the pain of the patient and improve the safety of operation.

Description

Technical Field

[0001] The invention relates to the technical field of cricothyroid membrane puncture.

[0002] Specifically, it relates to a cricothyroid membrane puncture device and a method of using the same. Background Art

[0003] Existing cricothyroid membrane puncture devices, such as Chinese patent CN216603021U, disclose a cricothyroid membrane puncture needle. The cricothyroid membrane puncture needle includes: a cannula, a needle tube, a first stopper and a second stopper. The needle tube can be inserted into the cannula; the first stopper is protrudingly arranged on the cannula; the second stopper is protrudingly arranged on the cannula, the second stopper is detachably connected to the cannula, and the second stopper is located on the distal side of the first stopper. When the distal end of the cannula enters the trachea, the depth of penetration of the cricothyroid membrane puncture needle is limited, and the needle tube is prevented from scraping the tracheal wall, thereby improving the safety of the puncture process and improving practicality. When the above scheme is used, when the cricothyroid membrane puncture needle is used to penetrate the trachea, the second stopper first contacts the patient's neck, and the distal end of the cannula is placed inside the trachea. At this time, the needle tube is pulled out, and the second stopper is removed, and the cannula continues to be sent into the trachea until the first stopper contacts the neck, and the cricothyroid membrane puncture process is completed.

[0004] The second stopper is C-shaped and is sleeved on the sleeve. The second stopper can be sleeved on the sleeve through the opening, and the sleeve can also be separated from the second stopper through the opening of the second stopper, so that the second stopper can be removed without pulling out the sleeve. A protrusion is provided on the outer wall of the second stopper, and the protrusion is provided to facilitate medical personnel to remove the second stopper from the sleeve through the protrusion.

[0005] The above technical solution has the following specific disadvantages: in the process of removing the second limiter, the medical staff pulls the protrusion, the second limiter is elastically deformed, and then detaches from the sleeve. During this process, the sleeve is subjected to greater force and is easily displaced, pulling the patient's trachea, increasing the patient's pain, and the operation safety is low. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the above-mentioned traditional technology and provide a cricothyroid membrane puncture device and a method of using the same. Before the C-shaped sleeve is removed from the sleeve, the C-shaped sleeve and the airbag have been out of contact with the sleeve.

[0007] The objective of the present invention is achieved through the following technical measures: a cricothyroid membrane puncture device, comprising a syringe and a sleeve, a limit piece is arranged on the sleeve, a C-shaped sleeve is arranged on the sleeve and is located in front of the limit piece, a handle is arranged on the upper part of the C-shaped sleeve, an air bag that can cooperate with the sleeve is arranged on the inner side of the C-shaped sleeve, an air bag inflation valve is arranged on the C-shaped sleeve, an active piston activity chamber is opened on the handle, an active piston is slidably arranged in the active piston activity chamber, a button is arranged on the handle, and a button that is connected to the active piston is also opened on the handle. A first air path is provided on the active cavity of the active piston, a second air path is provided on the C-shaped sleeve and is connected to the first air path, a slave piston active cavity is also provided on the C-shaped sleeve and is connected to the second air path, a slave piston is slidably arranged in the slave piston active cavity, an end of the slave piston active cavity away from the second air path is connected to the slave piston active cavity exhaust hole, an air bag exhaust hole is provided on the C-shaped sleeve and is connected to the inner side of the air bag and passes through the slave piston active cavity, and an annular groove that can be connected to the air bag exhaust hole is provided on the side of the slave piston.

[0008] As an improvement: the shape of the second air path is a semicircle arranged along the circumference of the C-shaped sleeve, the two ends of the second air path are respectively located on the left and right sides of the C-shaped sleeve, the two ends of the second air path are connected to the third air path arranged along the axial direction of the C-shaped sleeve, the two ends of the third air path are connected to a driven piston active chamber, and the driven piston active chamber is arranged along the axial direction of the C-shaped sleeve.

[0009] As an improvement: the exhaust holes of the active chamber of the driven piston are located on the side of the C-shaped sleeve, wherein two exhaust holes of the active chamber of the driven piston are located on the left side of the C-shaped sleeve, and two exhaust holes of the active chamber of the driven piston are located on the right side of the C-shaped sleeve.

[0010] As an improvement: the active piston activity chamber is arranged along the left and right directions, and an active piston is slidably arranged in both ends of the active piston activity chamber.

[0011] As an improvement: an active piston buffer spring is arranged between the active piston and the button, one end of the active piston buffer spring is connected to the active piston, and the other end is connected to the button.

[0012] As an improvement: the diameter of the active piston cavity is larger than the diameter of the first gas path, the diameter of the first gas path is larger than the diameter of the second gas path, and the diameter of the active piston cavity is larger than the diameter of the second gas path and smaller than the diameter of the first gas path.

[0013] As an improvement: the airbag includes an inner airbag membrane, an outer airbag membrane, a rear airbag membrane, a front airbag membrane and a lower airbag membrane, the outer airbag membrane is connected to the outer edge of the front end of the C-shaped sleeve, the rear airbag membrane is connected to the inner edge of the rear end of the C-shaped sleeve, the front airbag membrane is connected to the front end of the outer airbag membrane, the lower airbag membrane is connected to the inner edge of the lower end of the C-shaped sleeve, and the inner airbag membrane is connected to the rear airbag membrane, the front airbag membrane and the lower airbag membrane.

[0014] As an improvement: a side of the inner airbag membrane located inside the airbag is connected to a plurality of pull wires, and the pull wires are connected to the C-shaped sleeve.

[0015] As an improvement: the C-shaped sleeve is provided with a plurality of wire drawing holes for allowing the wires to pass through, and the outer ends of the wire drawing holes are provided with sealant filling grooves. After the wires pass through the wire drawing holes, they are fixed by the sealant filled in the sealant filling grooves.

[0016] A method for using the cricothyroid membrane puncture device as described above comprises the following steps:

[0017] When the C-shaped sleeve needs to be installed on the sleeve, air is inflated into the airbag through the airbag inflation valve, and the airbag expands. At this time, the diameter of the inner side of the C-shaped sleeve decreases, and the sleeve is fixed on the sleeve by friction;

[0018] When the C-shaped sleeve needs to be removed from the sleeve, pinch the handle and press the button to push the active piston to move. The active piston squeezes the gas in the active chamber of the active piston and enters the active chamber of the driven piston through the first gas path and the second gas path to push the driven piston to move. When the annular groove is connected to the airbag exhaust hole, the gas in the airbag is discharged. At this time, the diameter of the inner side of the C-shaped sleeve increases and breaks away from the sleeve. Then, the C-shaped sleeve can be removed from the sleeve.

[0019] Due to the adoption of the above technical solution, compared with the prior art, the present invention has the advantages that before the C-shaped sleeve is removed from the sleeve, the C-shaped sleeve and the airbag have been out of contact with the sleeve, and in the process of removing the C-shaped sleeve from the sleeve, the force exerted by the C-shaped sleeve and the airbag on the sleeve is reduced, which is beneficial to reducing the pain of the patient and improving the safety of operation.

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Attached Figure 1 It is a schematic diagram of the three-dimensional structure of a cricothyroid membrane puncture device of the present invention.

[0022] Attached Figure 2 It is a side structural schematic diagram of a cricothyroid membrane puncture device of the present invention.

[0023] Attached Figure 3It is a three-dimensional structural schematic diagram of a C-shaped sleeve and the upper rear side of a handle in a cricothyroid membrane puncture device of the present invention.

[0024] Attached Figure 4 It is a three-dimensional structural schematic diagram of a C-shaped sleeve and the front lower side of a handle in a cricothyroid membrane puncture device of the present invention.

[0025] Attached Figure 5 It is a schematic diagram of the three-dimensional structure of an air bag in a cricothyroid membrane puncture device of the present invention.

[0026] Attached Figure 6 It is a side structural schematic diagram of a C-shaped sleeve and a handle in a cricothyroid membrane puncture device of the present invention.

[0027] Attached Figure 7 yes Figure 6 Schematic diagram of the structure of the middle section AA.

[0028] Attached Figure 8 yes Figure 7 Schematic diagram of the structure of the airbag in the deflated state.

[0029] Attached Fig. 9 yes Figure 6 Schematic diagram of the structure of the middle section BB.

[0030] Attached Fig.10 yes Fig. 9 Schematic diagram of the structure of the middle section CC.

[0031] Attached Fig.11 yes Figure 6 Schematic diagram of the structure of the middle section DD.

[0032] Attached Fig.12 yes Fig.11 Schematic diagram of the enlarged structure of local E in the figure.

[0033] Attached Fig.13 yes Fig.12 Schematic diagram of the structure of the airbag in the deflated state.

[0034] In the figure: 1-syringe; 2-casing; 3-limiting member; 4-C-shaped sleeve; 5-handle;

[0035] 6-airbag; 601-inner airbag membrane; 602-outer airbag membrane; 603-rear airbag membrane; 604-front airbag membrane; 605-lower airbag membrane;

[0036] 7-airbag exhaust hole; 8-sealant filling groove; 9-button; 10-airbag inflation valve; 11-pull wire; 12-button return spring; 13-active piston buffer spring; 14-active piston active chamber; 15-active piston; 16-first air path; 17-second air path; 18-third air path; 19-connecting rod; 20-pull wire through hole; 21-driven piston active chamber; 22-driven piston; 23-driven piston active chamber exhaust hole; 24-annular groove. DETAILED DESCRIPTION

[0037] Embodiment 1: As attached Figures 1 to 13 As shown, a cricothyroid membrane puncture device includes a syringe 1 and a sleeve 2. A limiter 3 is provided on the sleeve 2. A C-shaped sleeve 4 is provided on the sleeve 2 and is located in front of the limiter 3. Specifically, the curvature of the C-shaped sleeve 4 is greater than a semicircle. A handle 5 is provided on the upper part of the C-shaped sleeve 4. Specifically, a connecting rod 19 is provided between the handle 5 and the C-shaped sleeve 4. The dimensions of the connecting rod 19 in the left and right directions are smaller than the dimensions of the handle 5 in the left and right directions. The dimensions of the connecting rod 19 in the front and rear directions are equal to the dimensions of the handle 5 in the front and rear directions. This structure facilitates the operator to better identify the position of the handle 5 and facilitates operation. In actual use, the syringe 1 and sleeve 2 both need to be tilted at a certain angle. In this embodiment, the sleeve 2 side is the front, the syringe 1 side is the back, and the side away from the patient is the top for description.

[0038] The inner side of the C-shaped sleeve 4 is provided with an airbag 6 that can cooperate with the sleeve 2. The C-shaped sleeve 4 is provided with an airbag inflation valve 10. Specifically, the airbag inflation valve 10 is made of rubber. There is a pinhole in the middle of the airbag inflation valve 10. When it is necessary to inflate the airbag 6, the inflation needle is inserted into the pinhole. After the inflation is completed, the inflation needle is pulled out. The pinhole is closed under the action of the rubber elasticity to avoid leakage. The handle 5 is provided with an active piston activity chamber 14, and an active piston 15 is slidably arranged in the active piston activity chamber 14. The handle 5 is provided with a button 9. Specifically, a button return spring 12 is arranged between the button 9 and the handle 5. The handle 5 is also provided with a first air path 16 connected to the active piston chamber 14, the C-shaped sleeve 4 is provided with a second air path 17 connected to the first air path 16, the C-shaped sleeve 4 is also provided with a slave piston chamber 21 connected to the second air path 17, a slave piston 22 is slidably arranged in the slave piston chamber 21, and the end of the slave piston chamber 21 away from the second air path 17 is connected to the slave piston chamber exhaust hole 23, the C-shaped sleeve 4 is provided with an airbag exhaust hole 7 connected to the inner side of the airbag 6 and passing through the slave piston chamber 21, and the side of the slave piston 22 is provided with an annular groove 24 that can be connected to the airbag exhaust hole 7.

[0039] When the C-shaped sleeve 4 needs to be installed on the sleeve 2, air is inflated into the airbag 6 through the airbag inflation valve 10, and the airbag 6 expands. At this time, the inner diameter of the C-shaped sleeve 4 is reduced and fixed on the sleeve 2 by friction.

[0040] When the C-shaped sleeve 4 needs to be removed from the sleeve 2, pinch the handle 5 and press the button 9 to push the active piston 15 to move. The active piston 15 squeezes the gas in the active piston chamber 14 and enters the passive piston chamber 21 through the first gas path 16 and the second gas path 17 to push the passive piston 22 to move. When the annular groove 24 is connected to the airbag exhaust hole 7, the gas in the airbag 6 is discharged. At this time, the diameter of the inner side of the C-shaped sleeve 4 increases and breaks away from the sleeve 2. Then, the C-shaped sleeve 4 can be removed from the sleeve 2.

[0041] Before the C-shaped sleeve 4 is removed from the sleeve 2, the C-shaped sleeve 4 and the airbag 6 have been out of contact with the sleeve 2. During the process of removing the C-shaped sleeve 4 from the sleeve 2, the force exerted by the C-shaped sleeve 4 and the airbag 6 on the sleeve 2 is reduced, which is beneficial to reducing the patient's pain and improving the safety of operation.

[0042] As attached Figures 7 to 13 As shown, the shape of the second gas path 17 is a semicircle arranged along the circumference of the C-shaped sleeve 4, and the two ends of the second gas path 17 are respectively located on the left and right sides of the C-shaped sleeve 4, and the two ends of the second gas path 17 are connected to the third gas path 18 arranged along the axial direction of the C-shaped sleeve 4, and the two ends of the third gas path 18 are connected to a slave piston activity chamber 21, and the slave piston activity chamber 21 is arranged along the axial direction of the C-shaped sleeve 4. Specifically, the two ends of the second gas path 17 are symmetrically arranged on the left and right and are located on the same diameter line, the two third gas paths 18 are symmetrically arranged on the left and right, and the two slave piston activity chambers 21 on the left are symmetrically arranged with the two slave piston activity chambers 21 on the right.

[0043] During use, since the third gas path 18 and the driven piston active chamber 21 are located on the left and right sides of the C-shaped sleeve 4, the force on the C-shaped sleeve 4 is more balanced, further reducing the force on the sleeve 2, which is beneficial to reducing the pain of the patient and improving the safety of operation.

[0044] The exhaust holes 23 of the slave piston active chamber are located on the side of the C-shaped sleeve 4, wherein two exhaust holes 23 of the slave piston active chamber are located on the left side of the C-shaped sleeve 4, and two exhaust holes 23 of the slave piston active chamber are located on the right side of the C-shaped sleeve 4. Specifically, the two exhaust holes 23 of the slave piston active chamber on the left side are symmetrically arranged with the two exhaust holes 23 of the slave piston active chamber on the right side.

[0045] When in use, the two exhaust holes 23 of the driven piston active cavity are located on the left side of the C-shaped sleeve 4, and the two exhaust holes 23 of the driven piston active cavity are located on the right side of the C-shaped sleeve 4. During the exhaust process of the driven piston active cavity 21, the C-shaped sleeve 4 is subjected to a more balanced force, which further reduces the force on the sleeve 2, is beneficial to reducing the patient's pain and improving operational safety.

[0046] The active piston activity chamber 14 is arranged along the left and right directions, and an active piston 15 is slidably arranged in both ends of the active piston activity chamber 14. Specifically, there are two buttons 9, which are respectively located on the left and right sides of the handle 5.

[0047] When the C-shaped sleeve 4 needs to be installed on the sleeve 2, the operator can pinch the front and rear sides of the handle 5 to operate; when the C-shaped sleeve 4 needs to be removed from the sleeve 2, the operator can pinch the left and right sides of the handle 5 to operate. The operation is simple, the force on the C-shaped sleeve 4 is more balanced, and the force on the sleeve 2 is further reduced, which is beneficial to reducing the patient's pain and improving the safety of operation.

[0048] An active piston buffer spring 13 is disposed between the active piston 15 and the button 9 . One end of the active piston buffer spring 13 is connected to the active piston 15 , and the other end is connected to the button 9 .

[0049] When in use, the button 9 is pressed to compress the active piston buffer spring 13. At this time, the thrust received by the active piston 15 is the elastic force of the active piston buffer spring 13. Therefore, the upper limit of the thrust received by the active piston 15 is limited, thereby reducing the vibration of the C-shaped sleeve 4 caused by excessive air pressure in each air path caused by the operator pressing the button 9 too hard and at too fast a speed, further reducing the force acting on the sleeve 2, which is beneficial to reducing the patient's pain and improving operational safety.

[0050] The diameter of the active piston chamber 14 is larger than the diameter of the first gas path 16, the diameter of the first gas path 16 is larger than the diameter of the second gas path 17, and the diameter of the passive piston chamber 21 is larger than the diameter of the second gas path 17 and smaller than the diameter of the first gas path 16. Specifically, the diameter of the third gas path 18 is equal to the diameter of the second gas path 17.

[0051] When in use, pressing the button 9 for a short distance can cause the driven piston 21 to move a long distance, which is convenient to use.

[0052] As attached Figures 3 to 6As shown, the airbag 6 includes an inner airbag membrane 601, an outer airbag membrane 602, a rear airbag membrane 603, a front airbag membrane 604 and a lower airbag membrane 605, the outer airbag membrane 602 is connected to the outer edge of the front end of the C-shaped sleeve 4, the rear airbag membrane 603 is connected to the inner edge of the rear end of the C-shaped sleeve 4, the front airbag membrane 604 is connected to the front end of the outer airbag membrane 602, the lower airbag membrane 605 is connected to the inner edge of the lower end of the C-shaped sleeve 4, and the inner airbag membrane 601 is connected to the rear airbag membrane 603, the front airbag membrane 604 and the lower airbag membrane 605.

[0053] When in use, the inner airbag membrane 601 cooperates with the sleeve 2, and the front end of the inner airbag membrane 601 and the front airbag membrane 604 are in contact with the patient, reducing the impact of the C-shaped sleeve 4 on the patient.

[0054] A plurality of pull wires 11 are connected to one side of the inner airbag film 601 located inside the airbag 6 , and the pull wires 11 are connected to the C-shaped sleeve 4 . Specifically, the ends of the pull wires 11 are bonded to the inner airbag film 601 .

[0055] Since the material of each part of the airbag 6 is relatively soft, when the airbag 6 is inflated, the surface of the inner airbag membrane 601 will bulge outward, making it difficult to maintain a predetermined shape. A plurality of pull lines 11 are connected to one side of the inner airbag membrane 601 located inside the airbag 6, which are used to limit the inner airbag membrane 601, thereby helping the inner airbag membrane 601 to maintain a predetermined shape.

[0056] The C-shaped sleeve 4 is provided with a plurality of wire holes 20 for allowing the wires 11 to pass through. The outer ends of the wire holes 20 are provided with sealant filling grooves 8. After the wires 11 pass through the wire holes 20, they are fixed by the sealant filled in the sealant filling grooves 8.

[0057] This structure facilitates the fixing of the pull wire 11 and is easy to process and manufacture.

[0058] Embodiment 2: A method for using the cricothyroid membrane puncture device as described in Embodiment 1, comprising the following steps:

[0059] When the C-shaped sleeve 4 needs to be installed on the sleeve 2, air is inflated into the airbag 6 through the airbag inflation valve 10, and the airbag 6 expands. At this time, the inner diameter of the C-shaped sleeve 4 is reduced and fixed on the sleeve 2 by friction.

[0060] When the C-shaped sleeve 4 needs to be removed from the sleeve 2, pinch the handle 5 and press the button 9 to push the active piston 15 to move. The active piston 15 squeezes the gas in the active piston chamber 14 and enters the passive piston chamber 21 through the first gas path 16 and the second gas path 17 to push the passive piston 22 to move. When the annular groove 24 is connected to the airbag exhaust hole 7, the gas in the airbag 6 is discharged. At this time, the diameter of the inner side of the C-shaped sleeve 4 increases and breaks away from the sleeve 2. Then, the C-shaped sleeve 4 can be removed from the sleeve 2.

[0061] Before the C-shaped sleeve 4 is removed from the sleeve 2, the C-shaped sleeve 4 and the airbag 6 have been out of contact with the sleeve 2. During the process of removing the C-shaped sleeve 4 from the sleeve 2, the force exerted by the C-shaped sleeve 4 and the airbag 6 on the sleeve 2 is reduced, which is beneficial to reducing the patient's pain and improving the safety of operation.

[0062] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should fall within the scope of the patent coverage of the present invention.

Claims

1. A cricothyroid membrane puncture device, comprising a syringe (1) and a cannula (2), wherein a limiter (3) is arranged on the cannula (2), a C-shaped sleeve (4) is arranged on the cannula (2) and is located in front of the limiter (3), and a handle (5) is arranged on the upper part of the C-shaped sleeve (4), characterized in that: An air bag (6) capable of cooperating with the sleeve (2) is arranged on the inner side of the C-shaped sleeve (4); an air bag inflation valve (10) is arranged on the C-shaped sleeve (4); an active piston activity chamber (14) is provided on the handle (5); an active piston (15) is slidably arranged in the active piston activity chamber (14); a button (9) is arranged on the handle (5); a first air path (16) connected to the active piston activity chamber (14) is also provided on the handle (5); a second air path (17) connected to the first air path (16) is provided on the C-shaped sleeve (4); The C-shaped sleeve (4) is also provided with a slave piston active chamber (21) which is in communication with the second air path (17); a slave piston (22) is slidably disposed in the slave piston active chamber (21); an end of the slave piston active chamber (21) away from the second air path (17) is in communication with a slave piston active chamber exhaust hole (23); an air bag exhaust hole (7) which is in communication with the inner side of the air bag (6) and passes through the slave piston active chamber (21) is provided on the C-shaped sleeve (4); and an annular groove (24) which can be in communication with the air bag exhaust hole (7) is provided on the side of the slave piston (22); The active piston activity chamber (14) is arranged along the left and right directions, and an active piston (15) is slidably arranged in both ends of the active piston activity chamber (14); An active piston buffer spring (13) is provided between the active piston (15) and the button (9); one end of the active piston buffer spring (13) is connected to the active piston (15) and the other end is connected to the button (9).

2. The cricothyroid membrane puncture device according to claim 1, characterized in that: The second gas path (17) is in the shape of a semicircle arranged along the circumference of the C-shaped sleeve (4), and the two ends of the second gas path (17) are respectively located on the left and right sides of the C-shaped sleeve (4), and both ends of the second gas path (17) are connected to a third gas path (18) arranged along the axial direction of the C-shaped sleeve (4), and both ends of the third gas path (18) are connected to a driven piston activity chamber (21), and the driven piston activity chamber (21) is arranged along the axial direction of the C-shaped sleeve (4).

3. The cricothyroid membrane puncture device according to claim 2, characterized in that: The driven piston active chamber exhaust holes (23) are located on the side of the C-shaped sleeve (4), wherein two driven piston active chamber exhaust holes (23) are located on the left side of the C-shaped sleeve (4), and two driven piston active chamber exhaust holes (23) are located on the right side of the C-shaped sleeve (4).

4. The cricothyroid membrane puncture device according to claim 1, characterized in that: The diameter of the active piston chamber (14) is greater than the diameter of the first gas path (16), the diameter of the first gas path (16) is greater than the diameter of the second gas path (17), and the diameter of the passive piston chamber (21) is greater than the diameter of the second gas path (17) and smaller than the diameter of the first gas path (16).

5. The cricothyroid membrane puncture device according to any one of claims 1 to 4, characterized in that: The airbag (6) comprises an inner airbag membrane (601), an outer airbag membrane (602), a rear airbag membrane (603), a front airbag membrane (604) and a lower airbag membrane (605); the outer airbag membrane (602) is connected to the outer edge of the front end of the C-shaped sleeve (4); the rear airbag membrane (603) is connected to the inner edge of the rear end of the C-shaped sleeve (4); the front airbag membrane (604) is connected to the front end of the outer airbag membrane (602); the lower airbag membrane (605) is connected to the inner edge of the lower end of the C-shaped sleeve (4); the inner airbag membrane (601) is connected to the rear airbag membrane (603), the front airbag membrane (604) and the lower airbag membrane (605).

6. The cricothyroid membrane puncture device according to claim 5, characterized in that: A side of the inner airbag membrane (601) located inside the airbag (6) is connected to a plurality of pull wires (11), and the pull wires (11) are connected to the C-shaped sleeve (4).

7. The cricothyroid membrane puncture device according to claim 6, characterized in that: The C-shaped sleeve (4) is provided with a plurality of wire drawing holes (20) for allowing the wire drawing wires (11) to pass through, and the outer ends of the wire drawing holes (20) are provided with sealant filling grooves (8). After the wire drawing wires (11) pass through the wire drawing holes (20), they are fixed by the sealant filled in the sealant filling grooves (8).

8. A method for using the cricothyroid membrane puncture device as claimed in claim 1, characterized in that: The following steps are involved: When the C-shaped sleeve (4) needs to be installed on the sleeve (2), air is inflated into the airbag (6) through the airbag inflation valve (10), and the airbag (6) expands. At this time, the diameter of the inner side of the C-shaped sleeve (4) decreases, and the sleeve is fixed on the sleeve (2) by friction force; When it is necessary to remove the C-shaped sleeve (4) from the sleeve (2), the handle (5) is pinched and the button (9) is pressed to push the active piston (15) to move. The active piston (15) squeezes the gas in the active piston activity chamber (14) and enters the passive piston activity chamber (21) through the first gas path (16) and the second gas path (17), pushing the passive piston (22) to move. When the annular groove (24) is connected to the airbag exhaust hole (7), the gas in the airbag (6) is discharged. At this time, the diameter of the inner side of the C-shaped sleeve (4) increases and is out of contact with the sleeve (2). Then, the C-shaped sleeve (4) can be removed from the sleeve (2).

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