First-aid negative pressure suction device for airway foreign body obstruction

Abstract

The invention discloses an airway foreign matter obstruction first-aid negative pressure suction device in the technical field of medical instruments, which comprises a first driving box and a second driving box, a winch assembly is arranged in the first driving box, a first twisted rope is arranged between the winch assembly and the second driving box, a transmission assembly is arranged in the second driving box, and the first twisted rope is rotatably connected with the transmission assembly. The side, away from the first twisted rope, of the transmission assembly is provided with a hammering assembly used for hammering the chest and abdomen, one side of the first driving box is fixedly connected with a face first-aid box, a second twisted rope is arranged between the face first-aid box and the winch assembly, and the end, away from the winch assembly, of the second twisted rope is fixedly connected with a hook. A telescopic box assembly is arranged on the side, close to the first driving box, in the face first-aid box, a hanging hole is fixedly connected to the telescopic box assembly, and the hook is fixedly connected with the hanging hole. The negative pressure suction device is automatically operated and worn, and the hammering assembly is combined to conduct auxiliary impact on the chest and abdomen, so that the effect that a person sucks the foreign matter in the airway in a self-rescue mode is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular is a negative pressure suction device for emergency treatment of airway foreign body obstruction. Background Art

[0002] Airway foreign body obstruction is an emergency medical condition, usually caused by food, toys or other small objects accidentally entering the throat, trachea and bronchi. This obstruction can quickly lead to breathing difficulties, suffocation and even death, especially for susceptible groups such as children and the elderly. The negative pressure suction device is a medical device that creates a negative pressure state on the suction head and squeezes the material outside the suction head toward the suction head to achieve the "suction" effect. In the emergency treatment of airway foreign body obstruction, the negative pressure suction device can quickly form a vacuum negative pressure to suck out the obstruction in the airway to achieve the purpose of rapid treatment. It has the advantages of easy use, less pain, fewer complications, and easy to carry. It is an indispensable first aid tool in modern medicine.

[0003] Although negative pressure suction devices have shown great value in the first aid of foreign body obstruction in the airway, the existing technology still faces some significant problems. First, most negative pressure suction devices mainly rely on direct suction of the mouth, ignoring the auxiliary role of chest or abdominal impact in the first aid of foreign body obstruction in the airway. Chest or abdominal impact, such as the Heimlich maneuver, can help push the foreign body in the airway upward by increasing abdominal pressure and thoracic pressure, creating more favorable conditions for negative pressure suction. However, most of the existing negative pressure suction devices fail to effectively combine this mechanism, resulting in that in practical applications, it is difficult for patients to operate the negative pressure suction device and perform chest and abdominal impact at the same time when performing personal first aid, thus affecting the first aid effect. In addition, the existing negative pressure suction devices are large in size, inconvenient to carry and use quickly; some devices are complicated to operate and require high skills and strength to be used effectively, which is a major challenge for self-rescue in the weak or emergency situations. Therefore, it is urgent to develop a personal first aid negative pressure suction device that can be combined with chest or abdominal impact to assist in the suction of foreign bodies in the airway. Summary of the invention

[0004] In order to solve the above problems, the purpose of the present invention is to realize the role of self-rescue and airway foreign matter absorption by individuals through self-operation of wearing a negative pressure absorption device and combining it with the auxiliary impact of a hammering component on the chest and abdomen.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: comprising a first driving box and a second driving box, a fixing rod for limiting is fixedly connected between the first driving box and the second driving box, a winch assembly is arranged in the first driving box, a first rope is arranged between the winch assembly and the second driving box, a transmission assembly is arranged in the second driving box, the first rope is rotatably connected with the transmission assembly, a hammering assembly for hammering the chest and abdomen is arranged on a side of the transmission assembly away from the first rope, a hand crank assembly for driving the winch assembly is arranged at one end of the winch assembly, a clamping assembly is arranged between the hand crank assembly and the winch assembly, and an end of the hand crank assembly away from the winch assembly extends outside the first driving box;

[0006] A facial first aid box is fixedly connected to a side of the first driving box away from the hand-cranked assembly, a second rope is provided between the facial first aid box and the winch assembly, a hook is fixedly connected to an end of the second rope away from the winch assembly, a telescopic box assembly that elastically stores force and generates a negative pressure environment after release is provided on the side of the facial first aid box close to the first driving box, a hanging hole is fixedly connected to the telescopic box assembly, the hook is fixedly connected to the hanging hole, a wearing assembly for fixing on the face is provided on a side of the telescopic box assembly away from the inner side wall of the facial first aid box, a first one-way valve is provided on the telescopic box assembly, the first one-way valve is connected to a telescopic ventilation pipe extending to the outside of the facial first aid box, a second one-way valve is connected between the telescopic box assembly and the wearing assembly, and a third one-way valve is provided on the side of the telescopic box assembly close to the first driving box.

[0007] The principle of the basic solution is: first, the winch assembly is rotated by the hand-cranked assembly, the first rope and the second rope on the winch assembly are both in a taut state, the second rope pulls the telescopic box assembly through the hook, so that the telescopic box assembly is in a retracted state under normal conditions, the transmission assembly is in an energy storage state under the tightening of the first rope, and the winch assembly and the hand-cranked assembly are clamped by the clamping assembly.

[0008] When the user has airway obstruction by foreign objects, the wearing component is aligned with the mouth area, and the clamping component is released. The rotation of the capstan component drives the first rope to be released, and then the rotational motion is converted into the reciprocating motion of the hammering component through the transmission component to exert a powerful impact on the chest and abdomen of the wearer. At the same time, after the second rope is released, the telescopic box assembly is in a released state under elastic force reset, and the air in the telescopic box assembly is discharged to the outside of the facial first aid box through the first one-way valve, the ventilation tube and the third one-way valve, forming a negative pressure environment in the telescopic box assembly. Since the second one-way air valve is used for external air to enter the interior, the airflow flows from the patient's trachea to the telescopic box assembly under suction, thereby helping the user to suck out the obstructing foreign objects from the airway.

[0009] The beneficial effects of the basic solution are: 1. The hand-cranked component and the winch component provide kinetic energy for the entire airway foreign body obstruction emergency negative pressure suction device, which does not require complicated operations or professional skills and is suitable for use by a wide range of people.

[0010] 2. The setting of the hand-cranked component and the winch component increases the kinetic energy effect of the device. The telescopic box component is driven from a contracted state to an extended state through the second twisted rope, so that the telescopic box component in the facial first aid box can generate negative pressure at the moment the clamping component is released, thereby achieving the purpose of first aid in the first time.

[0011] 3. The impact of the hammering component imitates the principle of the Heimlich maneuver. By increasing abdominal and thoracic pressure, it helps push foreign objects in the airway upward, creating favorable conditions for subsequent negative pressure absorption.

[0012] Furthermore, the hand crank assembly includes a lever arm, one end of which is fixedly connected to one side of the winch assembly, the other end of which is located outside the first drive box and fixedly connected to a telescopic rocker arm, and one end of the telescopic rocker arm away from the lever arm is fixedly connected to a handle.

[0013] The beneficial effect of the basic solution is that the user can adjust the length of the telescopic rocker arm according to actual needs, thereby changing the operating torque. When performing self-rescue, it is often necessary to repeatedly shake the handle to absorb negative pressure. At this time, the telescopic rocker arm can be extended to effectively save the user's effort in shaking the handle.

[0014] Furthermore, the winch assembly includes a first winch and a second winch fixedly connected to the inner bottom wall of the first drive box, one side of the first winch is rotatably connected to the force arm, a connecting shaft is fixedly connected between the first winch and the second winch, the first winch is fixedly connected to the first rope, and the second winch is fixedly connected to the second rope.

[0015] The beneficial effect of the basic solution is that the first capstan and the second capstan can be rotated simultaneously when the handle is turned through the connecting shaft, thereby driving the first and second ropes to perform different traction emergency work.

[0016] Furthermore, the clamping assembly includes a clamping clamp, which is located at the connection between the force arm and the first capstan, one end of the clamping clamp passes through the first drive box and extends to the outside of the first drive box, and the clamping clamp is slidably connected to the first drive box.

[0017] The beneficial effect of the basic scheme is that the clamping clamp can clamp the first capstan and the second capstan, so that when there is no need to attract foreign objects in the airway, the first rope and the second rope are tightened, and the clamping clamp clamps the force arm and the first capstan. When emergency suction is needed, the clamping clamp is released to immediately achieve the effect of negative pressure suction and thumping the chest and abdomen.

[0018] Furthermore, the transmission assembly includes a rotating shaft, both ends of which are rotatably connected to the inner top wall and the inner bottom wall of the second drive box respectively, one end of the first rope away from the first capstan is fixedly connected to the rotating shaft, a coil spring is sleeved on the rotating shaft, and an eccentric wheel is fixedly connected to the side of the rotating shaft away from the first rope.

[0019] The beneficial effect of the basic scheme is that the coil spring stores energy when the first rope is tightened, and when the first rope on the first capstan is loosened, the coil spring releases energy to drive the rotating shaft to rotate, thereby driving the eccentric wheel to rotate, thereby achieving the transmission effect of the transmission assembly.

[0020] Furthermore, the hammering assembly includes a connecting rod sleeve and a hammering connecting rod. The outer side wall of the second driving box away from the rotating shaft is fixedly connected to the connecting rod sleeve. The connecting rod sleeve is sleeved on the hammering connecting rod. One end of the hammering connecting rod extends into the second driving box and is rotatably connected to the eccentric wheel. The other end of the hammering connecting rod passes through the connecting rod sleeve and extends to the outside. One end of the hammering connecting rod located outside the connecting rod sleeve is fixedly connected to a hammering head. An elastic member is fixedly connected between the hammering head and the connecting rod sleeve. The elastic member is coaxially sleeved on the hammering connecting rod.

[0021] The beneficial effects of the basic scheme are: the rotation of the eccentric wheel can convert the rotational kinetic energy into the linear reciprocating kinetic energy of the hammer connecting rod, and through the external fixation of the connecting rod sleeve, the hammer connecting rod always pushes the hammer head outward in the direction of the coaxial fixation of the connecting rod sleeve, and the hammer head and the hammer connecting rod can be reset by the elastic part, thereby realizing the impact force of the hammer head on the chest and abdomen of the user.

[0022] Furthermore, the telescopic box assembly includes an exhaust pipe and a telescopic sleeve, the outer wall of the sleeve is fixedly connected to a telescopic sleeve, one side of the sleeve is fixedly connected to the inner wall of the second drive box, the exhaust pipe is sleeved on the sleeve, and a plurality of locking bolts are fixedly connected at the connection between the sleeve and the exhaust pipe, and the hanging hole and the first one-way valve are fixedly connected to the side wall of the exhaust pipe.

[0023] The beneficial effects of the basic scheme are: the telescopic sleeve allows the entire sleeve to shrink when the second rope is tightened, and a number of locking bolts between the sleeve and the exhaust pipe prevent the side walls of the sleeve and the exhaust pipe from forming a negative pressure environment due to air leakage. The air can be discharged from the exhaust pipe and the sleeve to the outside of the facial first aid box through the first one-way valve, forming a low-pressure environment inside the sleeve, and then forming a negative pressure that can attract foreign matter.

[0024] Furthermore, a telescopic rod is fixedly connected to one side of the sleeve, and a piston plate is fixedly connected to the end of the telescopic rod away from the side wall of the sleeve. The piston plate is slidably connected to the inner wall of the sleeve, and a spring is coaxially sleeved on the telescopic rod. The two ends of the spring are respectively fixedly connected to the piston plate and the inner wall of the sleeve. The third one-way valve is fixedly connected to the side wall of the sleeve close to the first drive box.

[0025] The beneficial effect of the basic solution is that the telescopic rod and the spring will shrink as the sleeve shrinks, and after the second rope is loosened, the spring provides a restoring elastic force, and the air away from the side of the first exhaust cylinder is discharged to the outside of the facial first aid box through the third one-way valve, thereby maintaining the airtightness of the air inside the sleeve and forming a good negative pressure environment.

[0026] Furthermore, the wearing component includes a mouth mask and a recovery bag, the second one-way valve is connected to the side wall of the exhaust pipe close to the recovery bag, the side of the recovery bag away from the exhaust pipe is fixedly connected to the inner wall of the first drive box and connected to the mouth mask, and the end of the mouth mask with a small diameter is fixedly connected to the side of the facial first aid box away from the first drive box.

[0027] The beneficial effects of the basic solution are: the mouth mask covers the user's mouth, which can maintain the air tightness of the facial first aid kit and the mouth mask, and only air is sucked out of the user's airway through the second one-way valve, and the air in the facial first aid kit will not be discharged into the user's trachea, and foreign matter sucked out from the user's trachea can be collected through the recovery bag.

[0028] Furthermore, a plurality of straps are fixedly connected to the mouth mask.

[0029] The beneficial effect of the basic solution is that the mouth mask can be stably fixed to the patient's mouth by the strap to perform a stable negative pressure suction operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an axonometric schematic diagram of a negative pressure suction device for emergency treatment of airway foreign body obstruction in an embodiment of the present invention.

[0031] Figure 2 It is a front cross-sectional view of part A of the negative pressure suction device for emergency treatment of airway foreign body obstruction in an embodiment of the present invention.

[0032] Figure 3 It is a front cross-sectional view of part B of the negative pressure suction device for emergency treatment of airway foreign body obstruction in an embodiment of the present invention.

[0033] The figure marks in the drawings of the specification include: 1, handle; 2, telescopic rocker arm; 3, first drive box; 4, facial first aid box; 5, mouth mask; 6, first rope; 7, second drive box; 8, connecting rod sleeve; 9, hammer connecting rod; 10, hammer head; 11, force arm; 12, first capstan; 13, coil spring; 14, rotating shaft; 15, eccentric wheel; 16, connecting shaft; 17, second capstan; 18, second rope; 19, spring; 20, telescopic rod; 21, telescopic sleeve; 22, piston plate; 23, hook; 24, hanging hole; 25, sleeve; 26, exhaust pipe; 27, recovery bag; 28, locking bolt; 29, binding strap; 30, clamping clamp; 31, vent pipe; 32, first one-way valve; 33, second one-way valve; 34, elastic member; 35, fixing rod; 36, third one-way valve. DETAILED DESCRIPTION

[0034] The following is further described in detail through specific implementation methods:

[0035] The embodiment is basically as shown in the attached Figure 1 , Figure 2 and Figure 3 As shown: an emergency negative pressure suction device for airway foreign body obstruction, including a first drive box 3 and a second drive box 7, a fixing rod 35 for limiting is welded between the first drive box 3 and the second drive box 7, a winch assembly is provided on the inner bottom wall of the first drive box 3, the winch assembly includes a first winch 12 and a second winch 17 bolted to the inner bottom wall of the first drive box 3, a connecting shaft 16 is welded between the first winch 12 and the second winch 17, one end of the first winch 12 is rotatably connected to a hand crank assembly, the hand crank assembly includes a lever arm 11, one side of the first winch 12 is rotatably connected to the lever arm 11, the other end of the lever arm 11 is located outside the first drive box 3 and is bolted to a telescopic rocker arm 2, and the end of the telescopic rocker arm 2 away from the lever arm 11 is bolted to a handle 1.

[0036] A clamping assembly is provided between the force arm 11 and the first capstan 12, and the clamping assembly includes a clamping clamp 30. The clamping clamp 30 is located at the connection between the force arm 11 and the first capstan 12, and one end of the clamping clamp 30 extends through the first drive box 3 to the outside of the first drive box 3, and the clamping clamp 30 is slidably connected to the first drive box 3.

[0037] A first rope 6 is provided between the first capstan 12 and the second drive box 7, the first capstan 12 is connected with the first rope 6 by a buckle, a transmission assembly is provided in the second drive box 7, the transmission assembly includes a rotating shaft 14, both ends of the rotating shaft 14 are respectively connected to the inner top wall and the inner bottom wall of the second drive box 7 for rotation, one end of the first rope 6 away from the first capstan 12 is connected with the rotating shaft 14 by a buckle, a coil spring 13 is sleeved on the rotating shaft 14, an eccentric wheel 15 is welded on the side of the rotating shaft 14 away from the first rope 6, and a hammer is provided on the side of the rotating shaft 14 away from the first rope 6. A hammering assembly for striking the chest and abdomen comprises a connecting rod sleeve 8 and a hammering connecting rod 9. The outer wall of the second driving box 7 away from the rotating shaft 14 is welded to the connecting rod sleeve 8. The connecting rod sleeve 8 is sleeved on the hammering connecting rod 9. One end of the hammering connecting rod 9 extends into the second driving box 7 and is rotatably connected to the eccentric wheel 15. The other end of the hammering connecting rod 9 passes through the connecting rod sleeve 8 and extends to the outside. A hammering head 10 is welded to the end of the hammering connecting rod outside the connecting rod sleeve 8, and an elastic member 34 is welded between the hammering head 10 and the connecting rod sleeve 8. The elastic member 34 is coaxially sleeved on the hammering connecting rod 9.

[0038] A facial first aid box 4 is welded to a side of the first drive box 3 away from the force arm 11, a second rope 18 is provided between the facial first aid box 4 and the second winch 17, the second winch 17 is snap-connected to the second rope 18, and a hook 23 is snap-connected to one end of the second rope 18 away from the second winch 17, a telescopic box assembly that elastically stores force and generates a negative pressure environment after release is provided on the side of the facial first aid box 4 close to the first drive box 3, the telescopic box assembly includes an exhaust pipe 26 and a telescopic sleeve 25, a telescopic sleeve 21 is welded to the outer wall of the sleeve 25, one side of the sleeve 25 is welded to the inner wall of the second drive box 7, a telescopic rod 20 is welded to one side of the sleeve 25, and the telescopic rod 20 is away from the sleeve 2 A piston plate 22 is welded to one end of the side wall, and the piston plate 22 is slidably connected to the inner wall of the sleeve 25. A spring 19 is coaxially sleeved on the telescopic rod 20, and the two ends of the spring 19 are respectively welded to the piston plate 22 and the inner wall of the sleeve 25. The exhaust cylinder 26 is sleeved on the sleeve 25, and a plurality of locking bolts 28 are bolted to the connection between the sleeve 25 and the exhaust cylinder 26. A hanging hole 24 is welded to the exhaust cylinder 26, and the hook 23 is snap-connected with the hanging hole 24. A first one-way valve 32 is provided on the side wall of the exhaust cylinder 26, and the first one-way valve 32 is connected to a telescopic ventilation pipe 31 extending to the outside of the facial first aid box 4. A third one-way valve 36 is provided on the side wall of the sleeve 25 close to the first driving box 3.

[0039] A wearing assembly for fixing on the face is provided on the side of the exhaust pipe 26 away from the inner wall of the facial first aid box 4, and the wearing assembly includes a mouth mask 5 and a recovery bag 27. A second one-way valve 33 is connected on the side wall of the exhaust pipe 26 close to the recovery bag 27. A side of the recovery bag 27 away from the exhaust pipe 26 is snap-connected to the inner wall of the first drive box 3 and is connected to the mouth mask 5. An end of the mouth mask 5 with a small diameter is welded to the side of the facial first aid box 4 away from the first drive box 3, and a plurality of straps 29 are bonded to the mouth mask 5.

[0040] The specific implementation process is as follows: when the airway foreign body obstruction emergency negative pressure suction device is not used, first pull out the telescopic rocker arm 2, the user shakes the handle 1 to rotate the first capstan 12, and drives the second capstan 17 to rotate at the same time through the connecting shaft, tightening the first rope 6 and the second rope 18. At this time, the first rope 6 pulls the rotating shaft 14 to shrink the coil spring 13 to store energy, and the second rope 18 pulls the exhaust pipe 26 to move toward the first drive box 3 through the hook 23, and the sleeve 25 shrinks with the movement of the exhaust pipe 26. After the first rope 6 and the second rope 18 are in a taut state, retract the telescopic rocker arm 2 to a distance, and push the clamp 30 to clamp the telescopic rocker arm 2 and the first capstan 12.

[0041] When the user has airway obstruction by foreign matter, the mouth mask 5 is aligned with the mouth area and fixed to the face by the strap 29. At this time, the clamping clip 30 is released, and the first capstan 12 rotates to drive the first rope 6 to be released. At this time, the coil spring 13 is reset, and the coil spring 13 releases energy to drive the rotating shaft 14 to rotate, thereby driving the eccentric wheel 15 to rotate, and then pushing the hammer connecting rod 9 to make a reciprocating motion to impact the chest and abdomen of the wearer. At this time, the impact of the hammer connecting rod 9 and the hammer head 10 imitates the principle of the Heimlich first aid method, and helps to push the foreign matter in the airway to move upward by increasing the abdominal pressure and the chest pressure, thereby creating favorable conditions for the subsequent negative pressure absorption.

[0042] At the same time, the second capstan 17 rotates to drive the second rope 18 to be released. At this time, the sleeve 25 is pushed to reset under the action of the telescopic sleeve 21, and the spring 19 inside the sleeve 25 also pushes the piston plate 22 to slide in the sleeve 25, and the air in the sleeve 25 is discharged into the exhaust pipe 26, and then the air is discharged to the outside of the facial first aid kit 4 through the first one-way valve 32 and the ventilation pipe 31. At the same time, the third one-way valve 36 will also discharge the air away from the side of the exhaust pipe 26 to the outside of the facial first aid kit 4, so that a negative pressure environment can be formed in the exhaust pipe 26 at the moment the clamping clamp 30 is released, so as to achieve the purpose of first aid in the first time.

[0043] At this time, the air pressure in the user's airway is higher than the air pressure in the exhaust cylinder 26, and the airflow enters the exhaust cylinder 26 from the user's airway through the second one-way valve 33, thereby sucking out the foreign matter. If the foreign matter is not completely sucked out by a single negative pressure suction, the user can continue to suck out the foreign matter by shaking the handle 1 to retract the first capstan 12 and release it again, and the foreign matter is sucked out and enters the recovery bag 27. The mouth mask 5 and the recovery bag 27 are disassembled for cleaning and disinfection, so as to facilitate the next use.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A negative pressure suction device for emergency treatment of airway foreign body obstruction, characterized in that: The invention comprises a first drive box (3) and a second drive box (7), wherein a fixing rod (35) for limiting position is fixedly connected between the first drive box (3) and the second drive box (7), a winch assembly is arranged in the first drive box (3), a first rope (6) is arranged between the winch assembly and the second drive box (7), a transmission assembly is arranged in the second drive box (7), the first rope (6) is rotatably connected to the transmission assembly, a hammering assembly for hammering the chest and abdomen is arranged on a side of the transmission assembly away from the first rope (6), a hand crank assembly for driving the winch assembly is arranged at one end of the winch assembly, a clamping assembly is arranged between the hand crank assembly and the winch assembly, and an end of the hand crank assembly away from the winch assembly extends to the outside of the first drive box (3); A facial first aid box (4) is fixedly connected to a side of the first drive box (3) away from the hand crank assembly, a second rope (18) is provided between the facial first aid box (4) and the winch assembly, a hook (23) is fixedly connected to one end of the second rope (18) away from the winch assembly, a telescopic box assembly that elastically stores force and generates a negative pressure environment after release is provided on a side of the facial first aid box (4) close to the first drive box (3), a hanging hole (24) is fixedly connected to the telescopic box assembly, the hook (23) is fixedly connected to the hanging hole (24), a wearing assembly for fixing on the face is provided on a side of the telescopic box assembly away from the inner side wall of the facial first aid box (4), a first one-way valve (32) is provided on the telescopic box assembly, the first one-way valve (32) is connected to a telescopic vent pipe (31) extending to the outside of the facial first aid box (4), a second one-way valve (33) is connected between the telescopic box assembly and the wearing assembly, and a third one-way valve (36) is provided on a side of the telescopic box assembly close to the first drive box (3).

2. The negative pressure suction device for emergency treatment of airway foreign body obstruction according to claim 1, characterized in that: The hand crank assembly comprises a lever arm (11), one end of the lever arm (11) is fixedly connected to one side of the winch assembly, the other end of the lever arm (11) is located outside the first drive box (3) and is fixedly connected to a telescopic rocker arm (2), and one end of the telescopic rocker arm (2) away from the lever arm (11) is fixedly connected to a handle (1).

3. The negative pressure suction device for emergency treatment of airway foreign body obstruction according to claim 2, characterized in that: The winch assembly comprises a first winch (12) and a second winch (17) fixedly connected to the inner bottom wall of the first drive box (3); a connecting shaft (16) is fixedly connected between the first winch (12) and the second winch (17); the first winch (12) is fixedly connected to a first rope (6); and the second winch (17) is fixedly connected to a second rope (18).

4. The negative pressure suction device for emergency treatment of airway foreign body obstruction according to claim 3, characterized in that: The clamping assembly comprises a clamping clamp (30), the clamping clamp (30) being located at the connection between the force arm (11) and the first capstan (12), one end of the clamping clamp (30) passing through the first drive box (3) and extending to the outside of the first drive box (3), and the clamping clamp (30) being slidably connected to the first drive box (3).

5. The negative pressure suction device for emergency treatment of airway foreign body obstruction according to claim 4, characterized in that: The transmission assembly comprises a rotating shaft (14), two ends of the rotating shaft (14) are respectively rotatably connected to the inner top wall and the inner bottom wall of the second driving box (7), one end of the first rope (6) away from the first capstan (12) is fixedly connected to the rotating shaft (14), a coil spring (13) is sleeved on the rotating shaft (14), and an eccentric wheel (15) is fixedly connected to the side of the rotating shaft (14) away from the first rope (6).

6. The negative pressure suction device for emergency treatment of airway foreign body obstruction according to claim 5, characterized in that: The hammering assembly comprises a connecting rod sleeve (8) and a hammering connecting rod (9); an outer side wall of the second driving box (7) away from the rotating shaft (14) is fixedly connected to the connecting rod sleeve (8); the connecting rod sleeve (8) is sleeved on the hammering connecting rod (9); one end of the hammering connecting rod (9) extends into the second driving box (7) and is rotatably connected to the eccentric wheel (15); the other end of the hammering connecting rod (9) penetrates the connecting rod sleeve (8) and extends to the outside; one end of the hammering connecting rod located outside the connecting rod sleeve (8) is fixedly connected to a hammering head (10); an elastic member (34) is fixedly connected between the hammering head (10) and the connecting rod sleeve (8); and the elastic member (34) is coaxially sleeved on the hammering connecting rod (9).

7. The negative pressure suction device for emergency treatment of airway foreign body obstruction according to claim 6, characterized in that: The telescopic box assembly comprises an exhaust pipe (26) and a telescopic sleeve (25), the outer wall of the sleeve (25) is fixedly connected with a telescopic sleeve (21), one side of the sleeve (25) is fixedly connected to the inner wall of the second driving box (7), the exhaust pipe (26) is sleeved on the sleeve (25), a plurality of locking bolts (28) are fixedly connected at the connection between the sleeve (25) and the exhaust pipe (26), and the hanging hole (24) and the first one-way valve (32) are both fixedly connected to the side wall of the exhaust pipe (26).

8. The negative pressure suction device for emergency treatment of airway foreign body obstruction according to claim 7, characterized in that: A telescopic rod (20) is fixedly connected to one side of the sleeve (25); an end of the telescopic rod (20) away from the side wall of the sleeve (25) is fixedly connected to a piston plate (22); the piston plate (22) is slidably connected to the inner wall of the sleeve (25); a spring (19) is coaxially sleeved on the telescopic rod (20); two ends of the spring (19) are respectively fixedly connected to the piston plate (22) and the inner wall of the sleeve (25); and a third one-way valve (36) is fixedly connected to the side wall of the sleeve (25) close to the first drive box (3).

9. The negative pressure suction device for emergency treatment of airway foreign body obstruction according to claim 8, characterized in that: The wearing assembly comprises a mouth mask (5) and a recovery bag (27); a second one-way valve (33) is connected to a side wall of an exhaust pipe (26) close to the recovery bag (27); a side of the recovery bag (27) away from the exhaust pipe (26) is fixedly connected to an inner side wall of a first drive box (3) and is connected to the mouth mask (5); an end of the mouth mask (5) with a smaller diameter is fixedly connected to a side of a facial first aid box (4) away from the first drive box (3).

10. The negative pressure suction device for emergency treatment of airway foreign body obstruction according to claim 9, characterized in that: A plurality of straps (29) are fixedly connected to the mouth mask (5).

Images