Cardiopulmonary and cerebral resuscitation device

Abstract

The present invention relates to a cardiopulmonary cerebral resuscitation device, the structure of which includes a back plate, a support adjustment frame installed on the back plate, a breathing arm and a circulation arm installed on the support adjustment frame, and an ice cap placed on the device. The cardiopulmonary cerebral resuscitation device has three major functions, namely chest compression, breathing support and hypothermic brain protection. The circulation arm is used for performing cardiac compression to achieve cardiac resuscitation, the breathing arm is used for ventilating the lungs to achieve pulmonary resuscitation, and the ice cap is used for cooling the brain to achieve brain protection. The three parts are used in combination, and with or without power supply and with or without air source conditions, appropriate chest compression, lung ventilation and brain cooling protection can be performed on patients, so that patients can resume oxygen supply and reduce the oxygen demand of the brain, reduce or even avoid damage caused by hypoxia, and maximize the survival rate of patients with cardiac arrest.

Description

Technical Field

[0001] The invention relates to a patient rescue device, in particular to a cardiopulmonary and cerebral resuscitation device. Background Art

[0002] When a person's heart and breathing suddenly stop, basic life position must be established within 4 to 8 minutes to ensure the basic blood and oxygen supply to the body's vital organs until advanced life support is established.

[0003] If CPR (cardiopulmonary resuscitation) is performed within 4 minutes after cardiac arrest, 32% of patients can be saved, while only 17% can be saved if CPR is performed after 4 minutes. Therefore, the first 4 minutes after cardiac arrest are called the golden 4 minutes. Once cardiac arrest occurs, if it is not rescued and resuscitated in time, it will cause irreversible damage to the patient's brain and other important organs and tissues after 4 to 6 minutes.

[0004] However, it is difficult for ordinary people to master professional CPR methods. Without professional training, manual CPR can hardly achieve effective compression, and it is impossible to provide effective CPR for patients. Waiting for an ambulance or professionals will delay the best rescue period. Now there are some devices for CPR, which can be pre-installed or placed in necessary places such as shopping malls, stations, buses and other public places. However, the existing CPR equipment is complex in structure, inconvenient to use and has limited functions. It is difficult for ordinary people to operate and it is also impossible to quickly and effectively perform CPR on patients.

[0005] For example, the existing encircling resuscitation device needs to be wrapped around the patient first, and then the chest compression is started. However, cardiopulmonary resuscitation needs to be coordinated with ventilation, that is, artificial respiration. Ordinary personnel still cannot effectively rescue the patient. Moreover, after cardiopulmonary resuscitation, the patient needs professional equipment on the ambulance for defibrillation. This encircling resuscitation device needs to be disassembled before defibrillation can be performed, resulting in a waste of time and affecting the possibility of rescuing the patient. There are also cardiopulmonary resuscitation devices that can perform chest compression and ventilation at the same time. Although there is a mask for ventilating the patient, in fact, a key step of professional artificial respiration is to open the patient's airway, because the patient's tongue will block the airway after coma, so artificial respiration can only be performed after the patient's airway is opened by the head tilting chin lifting method, the head tilting neck lifting method, the jaw lifting method, etc. Ordinary personnel basically do not understand this, and if the patient's airway is not opened when using the mask of the cardiopulmonary resuscitation device, its effect is also minimal.

[0006] Therefore, there is an urgent need for a resuscitation device that can be operated by ordinary personnel and can quickly and effectively rescue patients with cardiac arrest. Summary of the invention

[0007] The purpose of the present invention is to provide a cardiopulmonary and cerebral resuscitation device to solve the problem that the existing resuscitation devices are difficult for ordinary personnel to operate and cannot provide rapid and effective treatment for patients with cardiac arrest.

[0008] The present invention is implemented as follows: a cardiopulmonary cerebral resuscitation device, comprising:

[0009] The backboard, placed on the ground or bed board, is used to support the entire device and to place the patient.

[0010] The support adjustment frame is arranged on the back plate and is used for installing the breathing arm and the circulation arm and adjusting the positions of the breathing arm and the circulation arm.

[0011] Circulation arm, mounted on a support and adjustment frame, is used to perform chest compressions.

[0012] A breathing arm is installed on a support and adjustment frame and is used to ventilate a patient, comprising a breathing cantilever frame, on which a negative pressure suction device and a ventilation device are arranged, wherein the ventilation device comprises a first sealed cavity arranged in the breathing cantilever frame, an air inlet is opened on the first sealed cavity, a breathing piston is arranged in the first sealed cavity, the first sealed cavity is connected to a breathing mask through a hose, the breathing mask is connected to the breathing cantilever frame through a tightening mechanism, the breathing mask comprises an inverted U-shaped elastic frame, and a negative pressure suction device and a ventilation device are arranged on the inner side of the lower ends of the two side arms of the elastic frame. A hook plate is provided, a support rod is arranged between two side arms, a cover body is arranged on the support rod, an open ring is arranged at the lower port of the cover body, the open ring comprises a large annular sheet and a small annular sheet distributed up and down, the inner circle of the large annular sheet and the inner circle of the small annular sheet are connected by an annular wall, the edge of the large annular sheet is connected to the position corresponding to the mouth on the lower port of the cover body, a valve body is arranged at the upper port of the cover body, the valve body is connected to the hose, and hanging ears are arranged on both sides of the cover body, and the hanging ears, the support rod and the hook plate are connected by elastic ropes.

[0013] and an ice cap to cool the patient's brain.

[0014] The valve body includes a shell, a connecting port with a certain length is provided at a position where the shell is connected to the cover body, a floating one-way duckbill valve is placed in the shell, an upper end of the connecting port and the inner wall of the shell are connected by a connecting plate, a breathing hole is opened on the connecting plate, an observation cavity is provided on one side of the shell, the observation cavity and the breathing hole are connected, a float valve is provided in the observation cavity, a partition net is provided below the float valve, and an exhalation window is opened above the float valve.

[0015] The ice cap includes an earphone-type elastic clip, on which an inner liner and an outer layer are arranged, a water bag is arranged between the inner liner and the outer layer, the inner liner is filled with a layer of ice crystal powder, a connecting pipe is arranged on the water bag, the connecting pipe is connected to the inner liner directly or through a shunt pipe, and a water injection port and a one-way valve are arranged on the connecting pipe; the earphone-type elastic clip includes an arc-shaped portion for clamping on the forehead and clamping arms for clamping on both sides of the head, and earmuffs are arranged on the clamping arms.

[0016] The breathing piston is driven by a reciprocating mechanism arranged on the breathing cantilever frame, and the reciprocating mechanism includes a cylindrical breathing cam, and the breathing cam is driven by a breathing motor. A push rod is in contact with the surface of the breathing cam, and a gear is arranged on the push rod. A slider that moves along its length direction is arranged on the breathing cantilever frame, and a rack is arranged on the slider. The gear and the rack are meshed, and the push rod is driven to move along the central axis direction of the breathing cam by the rotation of the gear. The piston is connected to the pendulum block through a breathing connecting rod, and an adjustment hole is opened on the pendulum block. The end of the push rod is slidably connected to the adjustment hole.

[0017] The negative pressure suction device includes a negative pressure chamber, in which a negative pressure piston is arranged, and the negative pressure piston is driven to reciprocate by a negative pressure motor, and a pressure gauge and a negative pressure adjustment knob are arranged on the negative pressure chamber, the negative pressure chamber is connected to a suction tube, and the suction tube is connected to a dirt bottle, a negative pressure relief hole is opened on the suction tube, and a plurality of side holes are opened on the end side wall of the suction tube.

[0018] The circulation arm comprises a circulation cantilever frame, on which a circulation pressing device is arranged, the circulation pressing device comprises a pressing shell, a swinging wheel disc is arranged in the pressing shell, a transmission rod is hinged on the disc surface of the swinging wheel disc, a pressing sleeve is arranged at the lower end of the pressing shell, a pressing slider is arranged in the pressing sleeve, the pressing slider and the transmission rod are hinged, a pressing rod is arranged below the pressing slider, the lower end of the pressing rod extends out of the lower end of the pressing sleeve, a pressing sheet is arranged at the lower end of the pressing rod, and the swinging wheel disc is provided with a pressing sleeve. An adjustment groove is opened along the radial direction, and a circulating push rod is arranged on one side of the swinging wheel disc. One end of the circulating push rod can be slidably connected in the adjusting groove, and the other end of the circulating push rod contacts the surface of a circulating cam. The circulating cam is a special-shaped column. A circulating slide rail is arranged beside the circulating push rod, and a sliding sleeve is sleeved on the circulating slide rail. The circulating push rod is connected to the sliding sleeve, and a limiting tension spring is arranged on the sliding sleeve. The limiting tension spring provides a downward pulling force for the sliding sleeve. An upward rope is connected to the sliding sleeve, and the rope is wound around the winding wheel.

[0019] The circulating cam includes a base portion and a cam portion, the base portion is cylindrical, the cam portion is a special-shaped cylinder, the rotation axis of the cam portion coincides with the rotation axis of the base portion, the cross-sectional profile of the cam portion includes a first curve, a second curve, a third curve and a return straight line connected end to end, the first curve and the third curve are both arcs with the rotation axis as the center, the radius of the first curve is smaller than the radius of the third curve, the second curve is a semicircular arc, and the diameter of the second curve passes through the rotation axis, the radius of the return straight line and the radius of the third curve coincide, and the angle between the sector formed by the third curve and the center of the circle is 30~60°.

[0020] The hook plate includes a bottom plate and a side plate, the side plate is located at the front end of the bottom plate, the bottom plate and the side plate are at an angle of 110-130 degrees, the bottom plate is connected to the lower end of the elastic frame, and the elastic rope is connected to the bottom plate.

[0021] A limiting mechanism is arranged on the back plate, and the limiting mechanism includes an adjusting structure arranged on both sides of the upper surface of the back plate, the adjusting structure includes two parallel slide grooves, and a plurality of mutually parallel grooves are arranged between the two slide grooves, and the grooves are perpendicular to the slide grooves. A sliding frame is arranged on the slide groove, and a support frame is hinged on the sliding frame. When in use, the lower side of the support frame is stuck in the groove.

[0022] The support adjustment frame includes a first vertical rod arranged on a back plate, a cross rod is arranged on the top of the first vertical rod, a second vertical rod is arranged at the end of the cross rod, two parallel swing rods are hinged on one side of the second vertical rod, a fixed rod is hinged at the ends of the two swing rods, and a pull cable is connected to the diagonal line of the parallelogram formed by the two swing rods; a brake mechanism is respectively arranged at the position where the cross rod and the first vertical rod are connected, the position where the cross rod and the second vertical rod are connected, the position where the second vertical rod and a swing rod are connected, the position where the first vertical rod and the breathing cantilever frame are connected, and between the negative pressure suction device and the ventilation device, and the brake mechanism is connected through a brake line and a locking device.

[0023] The circulation arm and the breathing arm can be locked separately using two locking devices.

[0024] The present invention can perform cardiopulmonary and cerebral resuscitation on patients with cardiac arrest, the breathing arm can ventilate and provide oxygen supply to the patient, the circulation arm can perform chest compression on the patient, and the ice cap can protect the patient's brain, and the three cooperate with each other to maximize the possibility of resuscitating the patient. The breathing mask is provided with a hook plate, which is hooked on the patient's mandible. By pulling the breathing mask, the patient's chin is lifted upward and to the top of the head, thereby opening the patient's airway. At the same time, the opening ring on the breathing mask can keep the patient's mouth open, preventing the patient's mouth from closing during ventilation, so that air or oxygen can smoothly enter the patient's lungs for effective lung resuscitation. When in use, the patient only needs to be placed in the corresponding position on the backboard, and then the breathing mask is installed on the patient's face. By pulling the tightening mechanism, the patient's mouth and airway can be automatically opened, and the patient can be ventilated without the need for professionals. At the same time, the circulation arm can also provide professional chest compression operations. When using the ice cap, there is no need to prepare cryogenic materials separately. A low-temperature environment can be generated by directly opening the valve, which is convenient for storage and very convenient to use.

[0025] The present invention can provide comprehensive cardiopulmonary and cerebral resuscitation emergency treatment for patients with cardiac arrest, and can maximize the survival rate. Meanwhile, the operation difficulty is low, and non-professionals can also perform the operation quickly and easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a schematic diagram of the breathing arm of the present invention.

[0028] Figure 3 , 4 It is a schematic diagram of a breathing mask of the present invention.

[0029] Figure 5 It is a schematic diagram of the circulation device of the present invention.

[0030] Figure 6 Schematic diagram of the ice cap of the present invention.

[0031] Figure 7 It is a structural diagram of the circulating cam of the present invention.

[0032] Figure 8 It is a heart compression curve diagram of the present invention.

[0033] Fig. 9 It is a structural diagram of the brake mechanism of the present invention.

[0034] Fig.10 It is a structural diagram of the locking device of the present invention.

[0035] Fig.11 It is a structural diagram of the breathing cam of the present invention.

[0036] Fig.12 It is a structural diagram of the implementation of the ringing reminder function of the present invention.

[0037] Fig.13 yes Fig.12 Side view of.

[0038] In the figure: 1. back plate; 2. support adjustment frame; 3. breathing arm; 4. circulation arm; 5. swing rod; 6. cable; 7. fixed rod; 8. slide groove; 9. groove; 10. sliding frame; 11. support frame; 12. ice cap; 13. technical gear; 14. stepping gear; 15. horizontal shaft; 16. ratchet; 17. bell cam; 18. pawl; 19. metal spring; 20. hammer; 21. metal bell; 22. reset button; 23. reset spring; 24. limit tension spring; 2-1. first vertical rod; 2-2. cross rod; 2-3. second vertical rod; 2-4. rotating shaft; 2-5. brake pad; 2-6. swing member; 2-7. return spring; 2-8. limit plate; 2-9. brake line; 2-10. handle; 2-11. The first clamping plate; 2-12, the second clamping plate; 2-13, the brake tension spring; 2-14, the ridge; 3-1, the breathing cantilever frame; 3-2, the first sealing chamber; 3-3, the air inlet; 3-4, the breathing piston; 3-5, the hose; 3-6, the breathing mask; 3-7, the tensioning mechanism; 3-8, the breathing cam; 3-9, the breathing motor; 3-10, the push rod; 3-11, the slider; 3-12, the breathing slide rail; 3-13, the guide block; 3-14, the rack; 3-15, the gear; 3-16, the swing block; 3-17, the adjustment hole; 3-18, the breathing connecting rod; 3-19, the negative pressure chamber; 3-20, the negative pressure piston; 3-21, the negative pressure adjustment knob; 3-22, the pressure gauge; 3-23, the vent; 3-24, the suction tube; 3-25, waste bottle; 3-26, negative pressure release hole; 3-27, side hole; 3-28, negative pressure turntable; 3-29, negative pressure connecting rod; 3-30, negative pressure motor; 4-1, circulation pressing device; 4-2, pressing shell; 4-3, swinging wheel; 4-4, transmission rod; 4-5, pressing sleeve; 4-6, pressing slider; 4-7, pressing rod; 4-8, pressing sheet; 4-9, adjusting slot; 4-10, circulation push rod; 4-11, circulation cam; 4-12, circulation slide rail; 4-13, sliding sleeve; 4-14, limit tension spring; 4-15, rope; 4-16, winding wheel; 4-11-1, base; 4-11-2, cam; 4-11-3, first curve; 4-11-4, second curve; 4 -11-5, third curve; 4-11-6, return line; 12-1, earphone elastic clip; 12-2, liner; 12-3, water bag; 12-4, connecting pipe; 12-5, water inlet; 12-6, one-way valve; 12-7, shunt pipe; 12-8, arc-shaped part; 12-9, clamp arm; 12-10, earmuff; 3-6-1, elastic frame; 3-6-2, support rod; 3-6-3, cover body; 3-6-4, open ring; 3-6-5, large annular piece; 3-6-6, annular wall; 3-6-7, small annular piece; 3-6-8, hook plate; 3-6-9, hanging ear; 3-6-10, elastic rope; 3-6-11, valve body; 3-6-12, floating one-way duckbill valve; 3-6-13, connecting plate;3-6-14, breathing hole; 3-6-15, observation chamber; 3-6-16, partition net; 3-6-17, float valve; 3-6-18, exhalation window. ; DETAILED DESCRIPTION

[0039] like Figure 1 As shown, the cardiopulmonary cerebral resuscitation device of the present invention comprises a back plate 1, a support adjustment frame 2 is mounted on the back plate 1, a breathing arm 3 and a circulation arm 4 are mounted on the adjustment frame, and an ice cap 12 is placed on the device. The cardiopulmonary cerebral resuscitation device has three major functions, namely, chest compression, breathing support and hypothermic brain protection. The circulation arm 4 is used for performing cardiac compression to achieve cardiac resuscitation, the breathing arm 3 is used for ventilating the lungs to achieve pulmonary resuscitation, and the ice cap 12 is used for cooling the brain to achieve brain protection. The three parts are used in combination to perform appropriate chest compression, lung ventilation and brain cooling protection on the patient, so that the patient can resume oxygen supply and reduce the oxygen demand of the brain, reduce or even avoid damage caused by hypoxia, and maximize the survival rate of patients with cardiac arrest.

[0040] like Figure 2 As shown, the breathing arm 3 includes a breathing cantilever frame 3-1, which is divided into two parts, one part is used for ventilation and oxygen supply; the other part is used for negative pressure suction to suck out dirt in the patient's mouth or airway to ensure the patency of the patient's airway. The two parts of the breathing cantilever frame 3-1 are connected by a rotating shaft, and the two parts can rotate relative to each other.

[0041] As for the breathing cantilever frame 3-1 part used for ventilation and oxygen supply, a first sealed cavity 3-2 is formed inside the breathing cantilever frame 3-1, an air inlet 3-3 is opened on the first sealed cavity 3-2, a breathing piston 3-4 is installed in the first sealed cavity 3-2, and the breathing piston 3-4 reciprocates in the first sealed cavity 3-2 to realize the circulation of air supply to the patient's lungs. The first sealed cavity 3-2 is connected to a breathing mask 3-6 through a hose 3-5, and the breathing mask 3-6 is connected to the breathing cantilever frame 3-1 through a tensioning mechanism 3-7, and the tensioning mechanism 3-7 provides a pulling force in a specific direction for the breathing mask 3-6.

[0042] like Figure 3 , Figure 4 As shown, the breathing mask 3-6 includes an inverted U-shaped elastic frame 3-6-1, a tensioning mechanism 3-7 is connected to the elastic frame 3-6-1, and a hook plate 3-6-8 is arranged on the inner side of the lower end of the two side arms of the elastic frame 3-6-1, and the hook plate 3-6-8 is used to hook at the mandibular angle of the mandible. The breathing mask 3-6 is buckled on the patient's face, and the hook plate 3-6-8 is hooked at the mandibular angle of the mandible. The elastic frame 3-6-1 is pulled upward and toward the top of the head by the tensioning mechanism 3-7, so that the hook plate 3-6-8 drives the patient's chin to tilt up, and the patient's airway is fully opened, which is convenient for ventilation of the lungs.

[0043] A support rod 3-6-2 is fixed between the two side arms, and a mask body 3-6-3 is installed on the support rod 3-6-2. The mask body 3-6-3 can swing around the support rod 3-6-2, and the mask body 3-6-3 is kept buckled on the patient's face during the process of pulling the breathing mask 3-6.

[0044] An open ring 3-6-4 is provided at the lower port of the mask body 3-6-3, and a valve body 3-6-11 is provided at the upper port of the mask body 3-6-3, and the valve body 3-6-11 is connected to the hose 3-5. The gas in the first sealed cavity 3-2 enters the mask body 3-6-3 through the hose 3-5 and the valve body 3-6-11. In order to ensure that the patient's mouth is open, the open ring 3-6-4 is placed on the patient's mouth, and the gas enters the patient's oral cavity through the channel of the open ring 3-6-4, so that the mask body 3-6-3, the oral cavity, the airway and the lungs are interconnected, so that the patient's lungs can be effectively resuscitated.

[0045] The open ring 3-6-4 includes a large annular sheet 3-6-5 and a small annular sheet 3-6-7 which are distributed up and down. The inner circle of the large annular sheet 3-6-5 and the inner circle of the small annular sheet 3-6-7 are connected by an annular wall 3-6-6. The edge of the large annular sheet 3-6-5 is connected to the position corresponding to the mouth on the air bag at the lower port of the mask body 3-6-3. After placing the open ring 3-6-4 on the patient's mouth, the mask can be buckled on the patient's face.

[0046] Ears 3-6-9 are provided on both sides of the mask body 3-6-3, and the ear 3-6-9, the support rod 3-6-2 and the hook plate 3-6-8 are connected by elastic ropes 3-6-10. The ear 3-6-9 is located away from the end provided with the open ring 3-6-4. After the hook plate 3-6-8 is hooked on the mandible and the mask body 3-6-3 is buckled on the patient's face, the ear 3-6-9 pulls the elastic rope 3-6-10 to deform the elastic rope 3-6-10 to generate tension, and the mask body 3-6-3 is buckled on the patient's face under the action of the tension.

[0047] The valve body has a spontaneous breathing monitoring function, the valve body includes a shell, a connecting port with a certain length is provided at the position where the shell and the cover body are connected, a floating one-way duckbill valve is placed in the shell, the upper end of the connecting port and the inner wall of the shell are connected by a connecting plate, a breathing hole is opened on the connecting plate, an observation chamber 3-6-15 is provided on one side of the shell, the observation chamber 3-6-15 is connected to the breathing hole, a float valve 3-6-17 is provided in the observation chamber 3-6-15, a partition net 3-6-16 is provided below the float valve 3-6-17, and an exhalation window 3-6-18 is opened above the float valve 3-6-17. The floating one-way duckbill valve 3-6-12 only allows air to flow from the valve body 3-6-11 to the mask body 3-6-3. The air drives the floating one-way duckbill valve 3-6-12 to move downward, thereby sealing the exhalation hole on the connecting plate 3-6-13. After the floating one-way duckbill valve 3-6-12 moves to the lowermost end, the gas opens the duckbill valve and injects fresh air or oxygen into the mask body 3-6-3. The gas exhausted from the lungs cannot pass through the floating one-way duckbill valve 3-6-12, but lifts the floating one-way duckbill valve 3-6-12. After the floating one-way duckbill valve 3-6-12 moves upward, the breathing hole 3-6-14 is opened, and the exhausted gas is discharged to the outside through the breathing hole 3-6-14.

[0048] When it is necessary to observe whether the patient has recovered spontaneous breathing, stop the movement of the breathing piston 3-4 and observe the float valve 3-6-17 in the observation chamber 3-6-15. If the patient has recovered spontaneous breathing, the float valve 3-6-17 will float up and down with the patient's exhalation. This is because after the breathing piston 3-4 stops moving, the airflow in the mask body cannot pass through the floating one-way duckbill valve, but enters the observation chamber 3-6-15 through the breathing hole. During exhalation, the airflow pushes the float valve 3-6-17 upward, and during inhalation, the airflow enters the mask body 3-6-3 through the hose 3-5. The float valve 3-6-17 loses buoyancy and falls onto the partition net 3-6-16 under the action of gravity. The up and down movement of the float valve 3-6-17 can intuitively determine whether the patient has recovered spontaneous breathing. Previously, professionals would put their ears close to the patient's mouth and nose to listen for breath, and observe whether the patient's chest and abdomen were rising and falling. However, the patient's breath is easily disturbed by the environment, and it is difficult to observe when the patient's chest and abdomen are rising and falling slightly. At the same time, listening to the patient's breath requires removing the breathing mask, which may delay the patient's normal treatment.

[0049] The breathing piston 3-4 is driven by a reciprocating mechanism arranged on the breathing cantilever frame 3-1, and the reciprocating mechanism includes a cylindrical breathing cam 3-8, and the breathing cam 3-8 is driven by a breathing motor 3-9. A breathing push rod 3-10 is in contact with the surface of the breathing cam 3-8, and a gear 3-15 is axially connected to the breathing push rod 3-10. A slider 3-11 that moves along its length direction is installed in the breathing cantilever frame 3-1, and a vertical rack 3-14 is installed on the slider 3-11. The gear 3-15 and the rack 3-14 are meshed, and the breathing push rod 3-10 is driven to move up and down by the rotation of the gear 3-15. The breathing push rod 3-10 is connected to the guide block 3-13, and the guide block 3-13 is slidably installed on the vertical breathing slide rail 3-12 on the slider 3-11. A fan-shaped pendulum block 3-16 is axially connected to the breathing cantilever frame 3-1, and the piston is connected to the pendulum block 3-16 through a breathing connecting rod 3-18. An adjustment hole 3-17 is opened on the pendulum block 3-16, and the length direction of the adjustment hole 3-17 is consistent with the radius direction of the pendulum block 3-16. The end of the breathing push rod 3-10 is slidably connected to the adjustment hole 3-17. By adjusting the up and down position of the breathing push rod 3-10, the distance from the end of the breathing push rod 3-10 to the swing axis of the pendulum block 3-16 is adjusted, thereby adjusting the swing amplitude of the pendulum block 3-16, so as to further adjust the stroke size of the breathing piston 3-4, thereby adjusting the ventilation volume to adapt to patients of different ages, genders and weights.

[0050] The structure of the breathing cam is as follows Fig.11 As shown, the inspiratory and expiratory time ratio is within the range of 1:1.5 to 1:2.5.

[0051] In addition to opening the patient's mouth and airway, it is also necessary to ensure that the patient's airway is not blocked. If there is dirt in the patient's mouth or airway, directly using the breathing mask 3-6 to ventilate the patient cannot achieve the desired effect and may also cause damage to the patient. Therefore, a negative pressure suction device is also provided on the breathing arm 3.

[0052] The negative pressure suction device includes a negative pressure chamber 3-19, which is located in the breathing cantilever frame 3-1, and a vent hole 3-23 is opened on the negative pressure chamber 3-19. The vent hole 3-23 is a one-way vent hole that only allows gas to enter the negative pressure chamber 3-19 through the vent hole 3-23. A negative pressure piston 3-20 is installed in the negative pressure chamber 3-19, and the negative pressure piston 3-20 is driven to reciprocate by a negative pressure motor 3-30. The pressure gauge 3-22 and the negative pressure regulating knob 3-26, the negative pressure chamber 3-19 is connected with a suction tube 3-24, a one-way valve flap is provided at the connecting port between the suction tube 3-24 and the negative pressure chamber 3-19, so that the gas can only flow from the suction tube into the negative pressure chamber 3-19, the suction tube 3-24 is connected with a dirt bottle 3-25, a negative pressure relief hole 3-26 is opened on the suction tube 3-24, and a plurality of side holes 3-27 are opened on the side wall at the end of the suction tube 3-24.

[0053] The negative pressure piston 3-20 is eccentrically connected to the negative pressure turntable 3-28 through the negative pressure connecting rod 3-29. The negative pressure motor 3-30 drives the negative pressure turntable 3-28 to rotate. The rotation of the negative pressure turntable 3-28 drives the negative pressure connecting rod 3-29 to move back and forth, thereby driving the negative pressure piston 3-20 to move back and forth. By adjusting the negative pressure adjusting knob 3-21 and adjusting the rotation speed of the negative pressure turntable 3-28, the negative pressure in the negative pressure chamber 3-19 can be controlled.

[0054] When in use, the suction tube 3-24 is inserted into the patient's oral cavity or airway, and the waste is sucked out by negative pressure, and the sucked out waste flows into the waste bottle 3-25 for collection.

[0055] The effective and stable delivery of oxygen to the patient's lungs is the basis of the entire resuscitation process. Only when oxygen successfully enters the patient's lungs can the blood circulation be guaranteed to carry sufficient oxygen. Oxygen enters the blood in the lungs, and the oxygen in the blood needs to be pumped to various parts of the body through the beating of the heart, so the heart needs to be resuscitated to restore blood flow.

[0056] like Figure 5 As shown, cardiac resuscitation is performed by a circulation arm 4, which includes a circulation cantilever frame on which a circulation compression device 4-1 is installed.

[0057] The circulating pressing device 4-1 includes a pressing housing 4-2, in which a swinging wheel disc 4-3 is installed, the swinging wheel disc 4-3 swings around its center, a transmission rod 4-4 is hinged on the disc surface of the swinging wheel disc 4-3, a pressing sleeve 4-5 is installed at the lower end of the pressing housing 4-2, a pressing slider 4-6 is installed in the pressing sleeve 4-5, the top of the pressing slider 4-6 is hinged to the lower end of the transmission rod 4-4, a pressing rod 4-7 is installed at the lower end of the pressing slider 4-6, the lower end of the pressing rod 4-7 extends out of the lower end of the pressing sleeve 4-5, and a pressing sheet 4-8 is installed at the lower end of the pressing rod 4-7. The swinging of the swinging wheel disc 4-3 drives the pressing sheet 4-8 to move up and down, thereby performing chest compression on the patient.

[0058] An adjusting groove 4-9 is opened along the radial direction on the swing wheel 4-3, and a circulating push rod 4-10 is arranged on one side of the swing wheel 4-3. One end of the circulating push rod 4-10 can be slidably connected in the adjusting groove 4-9, and the other end of the circulating push rod 4-10 contacts the surface of the circulating cam 4-11. The circulating cam 4-11 is a special-shaped column. A circulating slide rail 4-12 is arranged next to the circulating push rod 4-10, and a sliding sleeve 4-13 is sleeved on the circulating slide rail 4-12. The circulating push rod 4-10 is connected to the sliding sleeve 4-13, and a limiting tension spring 244-14 is arranged on the sliding sleeve 4-13. The limiting tension spring 244-14 provides a downward pulling force for the sliding sleeve 4-13. An upward rope 4-15 is connected to the sliding sleeve 4-13, and the rope 4-15 is wound around the winding wheel 4-16.

[0059] The height of the circulating push rod 4-10 is adjusted by the winding wheel 4-16, thereby adjusting the distance between the end of the circulating push rod 4-10 and the center of the swing wheel 4-3 to adjust the swing amplitude of the swing wheel 4-3, thereby adjusting the pressing depth of the pressing plate 4-8.

[0060] like Figure 7 As shown, the circulating cam 4-11 includes a base portion 4-11-1 and a cam portion 4-11-2, the base portion 4-11-1 is cylindrical, the cam portion 4-11-2 is a special-shaped column, the rotation axis of the cam portion 4-11-2 coincides with the rotation axis of the base portion 4-11-1, and the cross-sectional profile of the cam portion 4-11-2 includes a first curve 4-11-3, a second curve 4-11-4, a third curve 4-11-5 and a return straight line 4-11-6 which are connected end to end in sequence, the first curve 4-11-3 and the third curve 4-11-5 are both arcs with the rotation axis as the center, the radius of the first curve 4-11-3 is smaller than the radius of the third curve 4-11-5, and the second curve 4-11- 4 is a semicircular arc, and the diameter of the second curve 4-11-4 passes through the rotation axis, the radius of the return straight line 4-11-6 and the third curve 4-11-5 coincide, and the angle between the fan formed by the third curve 4-11-5 and the center of the circle is 30~60°.

[0061] The rotating axis of the circulating cam 4-11 is in a vertical state. When the circulating push rod 4-10 moves up and down, the end of the circulating push rod 4-10 always keeps in contact with the cam portion 4-11-2, and the up and down movement of the circulating push rod 4-10 will not affect the ups and downs trend in the circumferential direction, ensuring that the horizontal movement law of the circulating push rod 4-10 at different heights is unchanged.

[0062] The first curve 4-11-3 corresponds to the highest point of the pressing plate 4-8, at which time the pressure in the chest cavity and the heart is the lowest, and the blood flows back to the heart. The second curve 4-11-4 corresponds to the pressing process of the pressing plate 4-8, at which time the volume of the heart gradually decreases. During the process of the decrease in the volume of the heart, the blood continues to flow back to the heart under the action of inertia at first. At a certain moment, the pressure in the heart increases so that the blood returns and then, as the volume of the heart continues to decrease, the pressure in the heart continues to increase, which will discharge the blood in the heart. The third curve 4-11-5 corresponds to the lowest point of the pressing plate 4-8, and the pressing plate 4-8 stays at the lowest point for a period of time, maintaining the pressing state on the heart, so that the blood in the heart is fully discharged. The return line 4-11-6 corresponds to the process of the pressing plate 4-8 returning to the highest point. This process is very short. After the heart has fully discharged the blood, it immediately returns to the state of maximum volume, and the negative pressure generated accelerates the return of blood.

[0063] The special structure of the cam portion 4-11-2 of the circulation cam 4-11 enables more blood to be discharged in one cycle, and then quickly generates negative pressure to accelerate the return of blood, thereby improving the blood supply capacity of the heart.

[0064] The cardiac congestion and blood discharge curve under the action of the cyclic pressing device 4-1 of the present invention is compared with the cardiac congestion and blood discharge curve of the traditional pressing method. Figure 8 , wherein the solid line represents the present invention, the dotted line represents the traditional pressing method, and the grid line area represents the increased cardiac output of the present invention.

[0065] The cyclic pressing device 4-1 of the present invention has an adjustable pressing depth, with an adjustment range of 4-6 cm, 4 cm for infants, 5 cm for children, and 5-6 cm for teenagers and adults. The structural design of the cam part 4-11-2 makes the pressing and lifting time longer than the traditional pressing / lifting time ratio of 1:1, and this design increases the pressing time.

[0066] Under traditional manual compression, the chest rebound is resisted by the human arm during lifting and cannot rebound at its fastest speed. However, the improved cam design can quickly release the pressure applied to the chest wall, achieving rapid and complete chest rebound. Blood can flow back to the heart at a higher speed in the same time, thereby increasing the amount of blood returning to the heart, improving compression efficiency, and improving the success rate of treatment. (The previous manual compression / relaxation time ratio was 1:1, because at a high-frequency compression of no less than 100 times / minute, each compression time was less than 0.6 seconds. Even professionals who have received professional cardiothoracic compressions find it difficult to accurately grasp the time ratio of each compression to relaxation as a fixed value).

[0067] Normal ventricular filling is mainly due to the suction effect of the ventricular active energy consumption diastole and the compression caused by the contraction of the atrium. However, the diastolic function and the contraction of the atrium will inevitably be affected in patients with cardiac arrest, which slows down the ventricular filling speed and reduces the filling degree. The circulation power mainly comes from the change of chest pressure. The present invention makes adjustments within a compression cycle without changing the time length of a previous compression cycle, prolonging the time that the sternum is in the lowest position in order to increase the stroke volume. Although the relaxation time is shortened, this relaxation is a complete relaxation achieved at a faster speed, and the blood return speed is increased, which can achieve the return of an equal amount or even more blood in a shorter time.

[0068] In addition to ensuring oxygen supply, it is also critical to reduce the brain's oxygen demand. In the past, many patients had their hearts re-beat after resuscitation, but they suffered serious damage due to brain hypoxia, and the result was either death or being in a vegetative state, which was a pity. Therefore, modern medicine pays more and more attention to protecting the brain during resuscitation, and traditional cardiopulmonary resuscitation also needs to increase brain protection to become cardiopulmonary brain resuscitation. Because the brain is a highly oxygen-demanding organ, it has the worst tolerance to hypoxia. Under normal temperature, brain cells will undergo irreversible necrosis if there is no oxygen supply for more than 4 minutes. Another point must be pointed out: after the patient's heart stops, the degree of brain damage is proportional to the body temperature and ambient temperature. The higher the temperature, the faster the brain cell metabolism and the faster the necrosis. Conversely, the lower the temperature, the slower the necrosis of brain cells. Therefore, it is very important to cool the brain of patients with cardiac arrest, which can significantly improve the success rate of first aid and avoid serious sequelae.

[0069] like Figure 6As shown, the ice cap 12 includes an earphone-type elastic clip 12-1, on which an inner liner 12-2 and an outer layer are fixed, and both the inner liner 12-2 and the outer layer are curved structures for wrapping the head. A water bag 12-3 is fixed between the inner liner 12-2 and the outer layer, and the water bag 12-3 is used to store liquid water. The inner liner 12-2 is filled with a layer of ice crystal powder, and a connecting pipe 12-4 is provided on the water bag 12-3. The connecting pipe 12-4 is connected to the inner liner 12-2 directly or through a shunt pipe 12-7, and a water injection port 12-5 and a one-way valve 12-6 are provided on the connecting pipe 12-4. The water injection port 12-5 is used to add water to the water bag 12-3, and the one-way valve 12-6 is used to prevent liquid water mixed with ice crystal powder from flowing back into the water bag 12-3. The inner liner 12 - 2 is divided into a number of grids, and each grid structure is filled with ice crystal powder, which can prevent uneven distribution caused by the ice crystal powder flowing in the inner liner 12 - 2.

[0070] The earphone-type elastic clip 12-1 includes an arc-shaped portion 12-8 for clamping on the forehead and clamping arms 12-9 for clamping on both sides of the head, and earmuffs 12-10 are arranged on the clamping arms 12-9. When in use, the clamping arms 12-9 on both sides are located at the temples on both sides, the earmuffs 12-10 cover the ears, and the arc-shaped portion 12-8 is located on the forehead, so that the entire ice cap 12 is fixed on the head. This structure can be firmly fixed on the head, and avoids the installation position of the breathing mask 3-6, avoiding interference with the breathing mask 3-6.

[0071] The ingredients of ice crystal powder are anhydrous sodium carbonate and glycerin. After mixing with water, the ice crystal powder dissolves and absorbs heat, thereby reducing the ambient temperature. When the ice cap 12 is not in use, the ice crystal powder and water will not come into contact, and it can be stored for a long time. When the patient's brain needs to be protected, the one-way valve 12-6 is opened to press the water bag 12-3 to fully discharge the liquid water into the liner 12-2, and then the earphone-type elastic clip 12-1 is clamped on both sides of the patient's head, and the liner 12-2 covers the brain to cool the brain.

[0072] In order to prevent the patient from moving left and right after being placed on the backboard 1, resulting in an unstable pressing position, a limiting mechanism is provided on the backboard 1. The limiting mechanism includes adjustment structures provided on both sides of the upper surface of the backboard 1, and the patient is located between the two adjustment structures.

[0073] The adjustment structure includes two parallel slide grooves 8 opened on the surface of the back plate 1, and a plurality of mutually parallel grooves 9 are provided between the two slide grooves 8, and the grooves 9 are perpendicular to the slide grooves 8. A sliding frame 10 is provided on the slide groove 8, and the lower end of the sliding frame 10 is slidably connected in the slide groove 8, and a support frame 11 is hinged on the sliding frame 10. When in use, the positions of the two sliding frames 10 are first adjusted so that the sliding frames 10 just contact the two sides of the patient's body, and then the lower side of the support frame 11 is inserted into the groove, so that the sliding frame 10 is supported and fixed, and the patient's body is also fixed, ensuring that the patient's body will not move during the pressing process, thereby ensuring stable and accurate pressing.

[0074] The breathing arm 3 and the circulation arm 4 are both mounted on the support adjustment frame 2 and their positions are adjusted by the support adjustment frame 2. The support adjustment frame 2 includes a first vertical rod 2-1 vertically mounted on the back plate 1, a cross rod 2-2 is rotatably connected to the top of the first vertical rod 2-1, a second vertical rod 2-3 is rotatably connected to the end of the cross rod 2-2, two mutually parallel swing rods 5 are hinged on one side of the second vertical rod 2-3, a fixed rod 7 is hinged at the ends of the two swing rods 5, and a cable 6 is connected to the diagonal line of the parallelogram formed by the two swing rods 5. The circulation arm 4 is mounted on the fixed rod 7, and the breathing arm 3 is mounted on the first vertical rod 2-1. Braking mechanisms are respectively installed on the rotating shaft 2-4 connecting the horizontal bar 2-2 and the first vertical bar 2-1, the rotating shaft 2-4 connecting the horizontal bar 2-2 and the second vertical bar 2-3, the part where a swing bar 5 is connected to the second vertical bar 2-3, the rotating shaft 2-4 connecting the first vertical bar 2-1 and the breathing cantilever frame 3-1, and the rotating shaft 2-4 connecting the negative pressure suction section and the ventilation and oxygen supply section of the breathing cantilever frame 3-1. The braking mechanism is connected to the locking device through a brake line 2-9. After adjusting the positions of the breathing arm 3 and the circulation arm 4, the braking mechanism can be pulled by two independent locking devices to fix the positions respectively.

[0075] like Fig. 9 As shown, the brake mechanism includes an arc-shaped brake piece 2-5, which surrounds the rotating shaft 2-4. A swinging piece 2-6 is connected to the end of the brake piece 2-5, and the swinging piece 2-6 can swing around its mounting axis. A brake wire 2-9 is connected to the end of the swinging piece 2-6. A limit plate 2-8 is fixed on one side of the rotating shaft. The brake wire 2-9 passes through the limit plate 2-8. A return spring 2-7 is sleeved on the brake wire 2-9 between the brake piece 2-5 and the limit plate 2-8. Pulling the brake wire 2-9 makes the brake piece 2-5 abut against the rotating shaft 2-4, and the rotation of the rotating shaft 2-4 is limited by friction, while compressing the return spring 2-7. When the brake wire 2-9 is released, the brake piece 2-5 is pushed back to its original position under the drive of the elastic restoring force of the return spring 2-7, so that the breathing arm 3 and the circulation arm 4 can adjust the height and angle to adapt to different patients.

[0076] like Fig.10As shown, the locking device includes a handle 2-10 hinged on the first vertical rod 2-1, a first clamping plate 2-11 and a second clamping plate 2-12 are respectively arranged on the side wall of the first vertical rod 2-1 and the handle 2-10, the second clamping plate 2-12 is hinged on the handle 2-10, the second clamping plate 2-12 and the handle 2-10 are connected by a brake tension spring 2-13, and convex ridges 2-14 are respectively arranged on the first clamping plate 2-11 and the second clamping plate 2-12. Pressing the handle 2-10, the convex ridges 2-14 of the first clamping plate 2-11 and the second clamping plate 2-12 are mutually clamped, thereby locking the brake line 2-9. When the brake mechanism needs to be released, the second clamping plate 2-12 is moved to make the convex ridges 2-14 on the second clamping plate 2-12 detach from the convex ridges 2-14 on the first clamping plate 2-11, so that the brake line 2-9 can be released.

[0077] A tension spring is arranged on one side of the end of the circulation cam 4-11, and the tension spring is located on one side of the third curve 4-11-5. The initial position of the circulation push rod 4-10 contacts the surface where the first curve 4-11-3 is located, so that the pressing rod 4-7 is located at the highest point each time it is used.

[0078] A tension spring is connected to one side of the end of the breathing cam 3-8, so that the initial position of the breathing push rod 3-10 is the lowest point of the cam. When the breathing cam 3-8 rotates, the breathing push rod 3-10 is immediately lifted, so that the breathing mask 3-6 immediately delivers air.

[0079] In addition to being driven by a motor, the breathing cam 3-8, the negative pressure turntable 3-28 and the circulation cam 4-11 are also connected to a manual crank. When the power supply cannot be connected or there is a power outage, the manual crank can be used to drive the circulation arm 4 and the breathing arm 3. When driven by manual cranking, it is necessary to determine the frequency of the cranking to determine the compression and ventilation frequency. A compression frequency meter and a breathing frequency meter are installed on the equipment. After adjusting the compression frequency meter and the breathing frequency meter according to the age of the patient, the operator only needs to shake the hand crank according to the frequency of the compression frequency meter and the breathing frequency meter; by shaking the hand crank of the negative pressure suction device at different speeds, a certain negative pressure suction can be generated, thereby achieving effective cardiopulmonary resuscitation without electricity and driving gas source.

[0080] like Fig.12 , Fig.13As shown, the present invention also includes a counting ringing reminder function and a reset reminder function. When the manual crank is used to drive the circulation arm, it can ring once every 30 compressions to remind that a group of compressions is completed. At this time, ventilation is required, and the breathing cam is immediately driven to rotate by the manual crank to ventilate the patient, and then the next group of compressions is performed. This function is realized by the following structure: including a counting gear 13, the counting gear 13 and the circulation cam rotate synchronously, and a stepping gear 14 is arranged next to the counting gear 13. The counting gear 13 has only one tooth, and the stepping gear 14 is provided with 30 teeth. The counting gear 13 drives the stepping gear 14 to rotate by one tooth angle every time the counting gear 13 rotates one circle. When the counting gear 13 rotates 30 circles, the stepping gear 14 rotates one circle. The stepping gear 14 is installed on the horizontal rotating shaft 15, and a ratchet 16 and a ringing cam 17 are also installed on the horizontal rotating shaft 15. The ratchet 16 is in contact with the pawl 18. A metal spring 19 is arranged next to the ringing cam 17. One end of the metal spring 19 is fixed and the other end is suspended and close to the ringing cam 17. A hammer 20 is fixed on the metal spring 19, and a metal bell 21 is arranged next to the hammer 20. When the ringing cam 17 rotates one circle with the stepping gear 14, the hammer 20 on the metal spring 19 hits the metal bell 21 once.

[0081] The horizontal rotating shaft 15 is mounted on the mounting frame, and the horizontal rotating shaft 15 can move along the length direction on the mounting frame. A reset button 22 is connected to the end of the horizontal rotating shaft 15, a reset spring 23 is installed between the reset button 22 and the mounting frame, and a limited tension spring 24 is connected to the ringing cam 17. When the circulation arm starts to press, it is possible that the ringing cam 17 is not in the initial position, which will cause premature ringing. When in use, the reset button 22 needs to be pressed first, and the horizontal axis drives the stepping gear 14, the ratchet 16 and the ringing cam 17 to move along the horizontal axis. After the movement, the ratchet 16 and the pawl 18 are disengaged from each other, and the stepping gear 14 and the counting gear 13 are disengaged. The stepping gear 14, the ratchet 16 and the ringing cam 17 rotate back to the initial position under the pull of the limited tension spring 24, and the reset button 22 is released, and the ratchet 16 and the pawl 18 are restored to contact, and the stepping gear 14 and the counting gear 13 are restored to contact. In this way, each time the ringing reminder starts from the initial position, it avoids premature ringing.

Claims

1. A cardiopulmonary cerebral resuscitation device, characterized in that: include: A backboard, placed on the ground or bed board, used to support the entire device and to place the patient; A support adjustment frame is arranged on the back plate and is used for installing the breathing arm and the circulation arm and adjusting the positions of the breathing arm and the circulation arm; A circulation arm, mounted on a support and adjustment frame, is used for chest compressions; The circulation arm comprises a circulation cantilever frame, on which a circulation pressing device is arranged, the circulation pressing device comprises a pressing shell, a swinging wheel disc is arranged in the pressing shell, a transmission rod is hinged on the disc surface of the swinging wheel disc, a pressing sleeve is arranged at the lower end of the pressing shell, a pressing slider is arranged in the pressing sleeve, the pressing slider and the transmission rod are hinged, a pressing rod is arranged below the pressing slider, the lower end of the pressing rod extends out of the lower end of the pressing sleeve, a pressing sheet is arranged at the lower end of the pressing rod, and the swinging wheel disc is provided with a pressing sleeve. An adjusting groove is opened along the upper edge in the radial direction, a circulating push rod is arranged on one side of the swing wheel disc, one end of the circulating push rod can be slidably connected in the adjusting groove, the other end of the circulating push rod contacts the surface of a circulating cam, the circulating cam is a special-shaped column, a circulating slide rail is arranged beside the circulating push rod, a sliding sleeve is sleeved on the circulating slide rail, the circulating push rod is connected to the sliding sleeve, a limited tension spring is arranged on the sliding sleeve, the limited tension spring provides a downward pulling force for the sliding sleeve, an upward rope is connected to the sliding sleeve, and the rope is wound on the winding wheel; A breathing arm is installed on a support and adjustment frame and is used to ventilate a patient, comprising a breathing cantilever frame, on which a negative pressure suction device and a ventilation device are arranged, wherein the ventilation device comprises a first sealed cavity arranged in the breathing cantilever frame, an air inlet is opened on the first sealed cavity, a breathing piston is arranged in the first sealed cavity, the first sealed cavity is connected to a breathing mask through a hose, the breathing mask is connected to the breathing cantilever frame through a tightening mechanism, the breathing mask comprises an inverted U-shaped elastic frame, and a A hook plate, a support rod is arranged between two side arms, a cover body is arranged on the support rod, an open ring is arranged at the lower end of the cover body, the open ring comprises a large annular sheet and a small annular sheet distributed up and down, the inner ring of the large annular sheet and the inner ring of the small annular sheet are connected by an annular wall, the edge of the large annular sheet is connected to the position corresponding to the mouth on the lower end of the cover body, a valve body is arranged at the upper end of the cover body, the valve body is connected to the hose, hanging ears are arranged on both sides of the cover body, and the hanging ears, the support rod and the hook plate are connected by elastic ropes; and An ice cap is used to cool the patient's brain.

2. The cardiopulmonary cerebral resuscitation device according to claim 1, characterized in that: The valve body includes a shell, a connecting port with a certain length is provided at a position where the shell is connected to the cover body, a floating one-way duckbill valve is placed in the shell, an upper end of the connecting port and the inner wall of the shell are connected by a connecting plate, a breathing hole is opened on the connecting plate, an observation cavity is provided on one side of the shell, the observation cavity and the breathing hole are connected, a float valve is provided in the observation cavity, a partition net is provided below the float valve, and an exhalation window is opened above the float valve.

3. The cardiopulmonary cerebral resuscitation device according to claim 1, characterized in that: The ice cap includes an earphone-type elastic clip, on which an inner liner and an outer layer are arranged, a water bag is arranged between the inner liner and the outer layer, the inner liner is filled with a layer of ice crystal powder, a connecting pipe is arranged on the water bag, the connecting pipe is connected to the inner liner directly or through a shunt pipe, and a water injection port and a one-way valve are arranged on the connecting pipe; the earphone-type elastic clip includes an arc-shaped portion for clamping on the forehead and clamping arms for clamping on both sides of the head, and earmuffs are arranged on the clamping arms.

4. The cardiopulmonary cerebral resuscitation device according to claim 1, characterized in that: The breathing piston is driven by a reciprocating mechanism arranged on the breathing cantilever frame, and the reciprocating mechanism includes a cylindrical breathing cam, and the breathing cam is driven by a breathing motor. A push rod is in contact with the surface of the breathing cam, and a gear is arranged on the push rod. A slider that moves along its length direction is arranged on the breathing cantilever frame, and a rack is arranged on the slider. The gear and the rack are meshed, and the push rod is driven to move along the central axis direction of the breathing cam by the rotation of the gear. The piston is connected to the pendulum block through a breathing connecting rod, and an adjustment hole is opened on the pendulum block. The end of the push rod is slidably connected to the adjustment hole.

5. The cardiopulmonary cerebral resuscitation device according to claim 1, characterized in that: The negative pressure suction device includes a negative pressure chamber, in which a negative pressure piston is arranged, and the negative pressure piston is driven to reciprocate by a negative pressure motor, and a pressure gauge and a negative pressure adjustment knob are arranged on the negative pressure chamber, the negative pressure chamber is connected to a suction tube, and the suction tube is connected to a dirt bottle, a negative pressure relief hole is opened on the suction tube, and a plurality of side holes are opened on the end side wall of the suction tube.

6. The cardiopulmonary cerebral resuscitation device according to claim 1, characterized in that: The circulating cam includes a base portion and a cam portion, the base portion is cylindrical, the cam portion is a special-shaped cylinder, the rotation axis of the cam portion coincides with the rotation axis of the base portion, the cross-sectional profile of the cam portion includes a first curve, a second curve, a third curve and a return straight line connected end to end, the first curve and the third curve are both arcs with the rotation axis as the center, the radius of the first curve is smaller than the radius of the third curve, the second curve is a semicircular arc, and the diameter of the second curve passes through the rotation axis, the radius of the return straight line and the radius of the third curve coincide, and the angle between the sector formed by the third curve and the center of the circle is 30~60°.

7. The cardiopulmonary cerebral resuscitation device according to claim 1, characterized in that: The hook plate includes a bottom plate and a side plate, the side plate is located at the front end of the bottom plate, the bottom plate and the side plate are at an angle of 110-130 degrees, the bottom plate is connected to the lower end of the elastic frame, and the elastic rope is connected to the bottom plate.

8. The cardiopulmonary cerebral resuscitation device according to claim 1, characterized in that: A limiting mechanism is arranged on the back plate, and the limiting mechanism includes an adjusting structure arranged on both sides of the upper surface of the back plate, the adjusting structure includes two parallel slide grooves, and a plurality of mutually parallel grooves are arranged between the two slide grooves, and the grooves are perpendicular to the slide grooves. A sliding frame is arranged on the slide groove, and a support frame is hinged on the sliding frame. When in use, the lower side of the support frame is stuck in the groove.

9. The cardiopulmonary cerebral resuscitation device according to claim 1, characterized in that: The support adjustment frame includes a first vertical rod arranged on a back plate, a cross rod is arranged on the top of the first vertical rod, a second vertical rod is arranged at the end of the cross rod, two parallel swing rods are hinged on one side of the second vertical rod, a fixed rod is hinged at the ends of the two swing rods, and a pull cable is connected to the diagonal line of the parallelogram formed by the two swing rods; a brake mechanism is respectively arranged at the position where the cross rod and the first vertical rod are connected, the position where the cross rod and the second vertical rod are connected, the position where the second vertical rod and a swing rod are connected, the position where the first vertical rod and the breathing cantilever frame are connected, and between the negative pressure suction device and the ventilation device, and the brake mechanism is connected through a brake line and a locking device.

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