CN113440402A - Cardio-pulmonary-cerebral resuscitation device - Google Patents

Abstract

The invention relates to a cardio-pulmonary-cerebral resuscitation device which structurally comprises a backboard, wherein a support adjusting frame is arranged on the backboard, a breathing arm and a circulating arm are arranged on the support adjusting frame, and an ice cap is arranged on the device. Cardiopulmonary-cerebral resuscitation device has three major functions, chest is pressed outward, breathe support and low temperature brain protection, the circulation arm is used for carrying out the heart and presses and realize cardiac resuscitation, the breathing arm is used for ventilating for the lung and realizes pulmonary resuscitation, the ice cap is used for cooling down the brain and realizes brain protection, the cooperation of triplex is used, in the presence/absence of power, under the air supply condition, all can carry out suitable chest to the patient and press, lung ventilates and brain cooling protection, make the patient resume the oxygen suppliment and reduce the oxygen demand of brain, reduce or even avoid because the damage that the oxygen deficiency caused, with the survival rate maximize of the patient of cardiac arrest.

Description

Cardio-pulmonary-cerebral resuscitation device

Technical Field

The invention relates to a patient rescue device, in particular to a cardio-pulmonary-cerebral resuscitation device.

Background

When a person suddenly stops heartbeat and breathing, a basic life position must be established within 4-8 minutes, and basic blood oxygen supply of important visceral organs of the human body is guaranteed until a high-grade life support is established.

CPR (cardiopulmonary resuscitation) is performed within 4 minutes after cardiac arrest, and 32% of patients survive, while after 4 minutes cardiopulmonary resuscitation only 17% of people survive, so the first 4 minutes after cardiac arrest is called golden four minutes. Once sudden cardiac arrest occurs, if resuscitation cannot be rescued in time, irreversible damage to the brain and other important organ tissues of a patient can be caused after 4-6 minutes.

However, the professional cardiopulmonary resuscitation method is difficult for ordinary people to master, if manual CPR is not trained professionally, effective compression can hardly be achieved, effective cardiopulmonary resuscitation can not be provided for patients, and the best rescue period can be delayed when the patients wait for an ambulance or professionals. Some devices for cardiopulmonary resuscitation have appeared, and the devices for cardiopulmonary resuscitation can be pre-installed or placed in necessary occasions such as public occasions like malls, stations and buses, but the existing cardiopulmonary resuscitation devices have complex structures, inconvenient use and limited functions, are difficult to operate by common personnel, and also cannot perform cardiopulmonary resuscitation on patients quickly and effectively.

If current formula of embracing resuscitating device, need bind the device winding on the patient one's body earlier, then start to carry out the chest and press, but cardiopulmonary resuscitation needs the cooperation to ventilate also be exactly artificial respiration, and the average person still can not implement effectual rescue to the patient, and the patient is after cardiopulmonary resuscitation salvages, still needs the professional equipment on the ambulance to defibrillate, this kind of formula of embracing resuscitating device still need dismantle the back and just can defibrillate, has caused the waste of time, has influenced the possibility that the patient rescued and comes. There are also existing cardiopulmonary resuscitation devices that can simultaneously perform chest compression and ventilation, and although there is a mask for ventilating a patient, in practice, it is a critical step of professional artificial respiration to open the airway of the patient, and since the tongue of the patient blocks the airway after coma, artificial respiration can be performed only after the airway of the patient is opened by lifting the chin up, lifting the neck up, holding the jaw, etc., and the ordinary person basically does not know this, and when using the mask of the cardiopulmonary resuscitation device, if the airway of the patient is not opened, the effect is very little.

There is therefore a need for a resuscitation device that can be operated by ordinary personnel and that can provide a quick and effective rescue of patients with cardiac arrest.

Disclosure of Invention

The invention aims to provide a cardio-pulmonary-cerebral resuscitation device, which solves the problems that common personnel of the conventional resuscitation device are difficult to operate and can not quickly and effectively cure patients with sudden cardiac arrest.

The invention is realized by the following steps: a cardiopulmonary and cerebral resuscitation device comprising:

the back plate is placed on the ground or the bed board and used for supporting the whole device and placing a patient.

And the support adjusting frame is arranged on the back plate and used for installing the breathing arm and the circulating arm and adjusting the positions of the breathing arm and the circulating arm.

And the circulating arm is arranged on the support adjusting frame and is used for carrying out chest compression.

The breathing arm is arranged on the support adjusting frame and used for ventilating a patient, and comprises a breathing cantilever frame, a negative pressure suction device and a ventilating device are arranged on the breathing cantilever frame, the ventilating device comprises a first sealing cavity arranged in the breathing cantilever frame, an air inlet is formed in the first sealing cavity, a breathing piston is arranged in the first sealing cavity, the first sealing cavity is communicated with a breathing mask through a hose, the breathing mask is connected with the breathing cantilever frame through a tensioning mechanism and comprises an inverted U-shaped elastic frame, a hook plate is arranged on the inner side of the lower end of two side arms of the elastic frame, a support rod is arranged between the two side arms, a mask body is arranged on the support rod, a split ring is arranged at the lower port of the mask body and comprises a large annular sheet and a small annular sheet which are distributed up and down, the inner circle of big annular piece with connect through annular wall between the inner circle of little annular piece, the edge connection of big annular piece is in the position that corresponds with the mouth on the lower port of the cover body the last port of the cover body is provided with the valve body, valve body and hose intercommunication the both sides of the cover body are provided with the hangers, bracing piece and collude and connect through the elastic cord between the board.

And an ice cap for cooling the brain of the patient.

The valve body includes the casing with the position of cover body intercommunication is equipped with the intercommunication mouth that has certain length place in the casing can float one-way duckbilled valve the upper end of intercommunication mouth with connect through the connecting plate between the inner wall of casing it has the respiratory orifice to open on the connecting plate casing one side is provided with observes the chamber, observe the chamber with the respiratory orifice is linked together observe the intracavity and be provided with the float valve the below of float valve is provided with and separates the net open the top of float valve has the expiration window.

The ice cap comprises an earphone-type elastic clamp, an inner container and an outer cladding layer are arranged on the earphone-type elastic clamp, a water bag is arranged between the inner container and the outer cladding layer, an ice crystal powder layer is filled in the inner container, a communicating pipe is arranged on the water bag and is communicated with the inner container directly or through a shunt pipe, and a water filling port and a one-way valve are arranged on the communicating pipe; earphone formula elasticity presss from both sides including being used for the arc portion of card on the forehead and being used for the card arm of card both sides head is provided with the ear muff on the card arm.

Breathe the piston by set up in breathe reciprocating mechanism drive on the cantilever frame, reciprocating mechanism includes the breathing cam of cylinder form, breathe the cam by breathing motor drive the surface contact of breathing the cam has the ejector pin be provided with the gear on the ejector pin breathe be provided with the slider that moves along its length direction on the cantilever frame be provided with the rack on the slider, the gear with rack toothing, and pass through the rotation drive of gear the ejector pin removes along the central axis direction of breathing the cam, the piston is connected with the pendulum piece through breathing the connecting rod open on the pendulum piece and have the regulation hole, the tip of ejector pin with regulation hole sliding connection.

Negative pressure suction device includes the negative pressure chamber be provided with the negative pressure piston in the negative pressure chamber, the negative pressure piston is by negative pressure motor drive reciprocating motion be provided with manometer and negative pressure adjust knob on the negative pressure chamber, negative pressure chamber intercommunication has the suction tube the intercommunication has the filth bottle on the suction tube open on the suction tube has the negative pressure release hole open on the tip lateral wall of suction tube has a plurality of side openings.

The circulating arm comprises a circulating cantilever bracket, a circulating pressing device is arranged on the circulating cantilever bracket and 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 and is hinged with the transmission rod, a pressing rod is arranged below the pressing slider, the lower end of the pressing rod extends out of the lower port of the pressing sleeve, a pressing sheet is arranged at the lower end of the pressing rod, an adjusting groove is formed in the swinging wheel disc along the radius direction, a circulating push rod is arranged on one side of the swinging wheel disc, one end of the circulating push rod is connected in the adjusting groove in a sliding manner, and the other end of the circulating push rod is in contact with the surface of the circulating cam, the circulating cam is in a special-shaped column shape, a circulating slide rail is arranged beside the circulating ejector rod, a sliding sleeve is sleeved on the circulating slide rail, the circulating ejector rod is connected to the sliding sleeve in a penetrating mode, a limiting tension spring is arranged on the sliding sleeve and provides downward tension for the sliding sleeve, an upward rope is connected to the sliding sleeve, and the rope is wound on the winding wheel.

The circulating cam comprises a base portion and a cam portion, wherein the base portion is cylindrical, the cam portion is in a special-shaped cylindrical shape, a rotating shaft of the cam portion is overlapped with the rotating shaft of the base portion, the cross section profile of the cam portion comprises a first curve, a second curve, a third curve and a return straight line which are sequentially connected end to end, the first curve and the third curve are circular arcs with the rotating shaft as a circle center, the radius of the first curve is smaller than that of the third curve, the second curve is a semicircular arc, the diameter of the second curve passes through the rotating shaft, the radius of the return straight line is overlapped with that of the third curve, and a fan-shaped included angle formed by the third curve and the circle center is 30-60 degrees.

The hook plate comprises a bottom plate and side plates, the side plates are located at the front end of the bottom plate, the bottom plate and the side plates are 110-130 degrees, the bottom plate is connected with the lower end of the elastic frame, and the elastic cable is connected to the bottom plate.

Be provided with stop gear on the backplate, stop gear is including the regulation structure of locating backplate upper surface both sides, adjusts the spout that the structure includes two parallels, is equipped with a plurality of parallel grooves each other between two spouts, and the groove perpendicular to spout is provided with the carriage on the spout articulated on the carriage have the support frame, in the recess was gone into to the downside card of support frame when using.

The supporting and adjusting frame comprises a first vertical rod arranged on the back plate, a cross rod is arranged at the top of the first vertical rod, a second vertical rod is arranged at the end part of the cross rod, two swinging rods which are parallel to each other are hinged to one side of the second vertical rod, fixed rods are hinged to the end parts of the two swinging rods, and inhaul cables are connected to diagonal lines of a parallelogram formed by the two swinging rods; the position where the cross rod is connected with the first vertical rod, the position where the cross rod is connected with the second vertical rod, the position where the second vertical rod is connected with the swing rod, the position where the first vertical rod is connected with the breathing cantilever frame, and the negative pressure suction device and the ventilation device are respectively provided with an anti-braking mechanism, and the anti-braking mechanism is connected with the locking device through a brake line.

The circulation arm and the breathing arm can be locked by two locking devices respectively.

The cardio-pulmonary-cerebral resuscitation device can perform cardio-pulmonary-cerebral resuscitation on a patient with sudden cardiac arrest, the breathing arm can ventilate the patient to provide oxygen supply, the circulating arm can perform chest compression on the patient, the ice cap can protect the brain of the patient, and the possibility of rescuing the patient is maximized by the cooperation of the cardio-pulmonary-cerebral resuscitation device, the breathing arm and the ice cap. Have on the respirator and collude the board, collude the board and collude in patient's mandible department, make patient's chin top of the body and the top of the head direction lift up through tractive respirator to open patient's air flue, open ring on the respirator simultaneously can keep opening of patient's oral area, prevent that patient's oral area is closed at the in-process of ventilating, make air or oxygen can get into patient's lung smoothly, in order to carry out effectual lung resuscitation. Only need place the patient corresponding position on the backplate during use, then install respirator at the patient face, through the tractive of straining device, just can open patient's oral area and air flue automatically, do not need professional just can ventilate to the patient, the arm that circulates simultaneously also can provide professional extrathoracic pressure operation. When the ice cap is used, low-temperature substances do not need to be prepared additionally, and a low-temperature environment can be generated by directly opening the valve, so that the ice cap is convenient to store and very convenient to use.

The invention can carry out complete resuscitation and emergency treatment of heart, lung and brain of the patient with sudden cardiac arrest, can maximize the survival rate, has small difficulty in operation and can be quickly and easily operated by non-professional personnel.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Figure 2 is a schematic view of a breathing arm of the present invention.

Fig. 3 and 4 are schematic views of the respiratory mask of the present invention.

FIG. 5 is a schematic view of the circulation device of the present invention.

FIG. 6 is a schematic view of the ice cap of the present invention.

Fig. 7 is a structural view of the circulating cam of the present invention.

Fig. 8 is a graph of cardiac compression in accordance with the present invention.

Fig. 9 is a structural view of the brake mechanism of the present invention.

Fig. 10 is a structural view of the locking device of the present invention.

Fig. 11 is a structural view of the breathing cam of the present invention.

Fig. 12 is a block diagram of an implementation of the ring alert function of the present invention.

Fig. 13 is a side view of fig. 12.

In the figure: 1. a back plate; 2. supporting the adjusting frame; 3. a breathing arm; 4. a circulation arm; 5. a swing lever; 6. a cable; 7. fixing the rod; 8. a chute; 9. a groove; 10. a carriage; 11. a support frame; 12. an ice cap; 13. a technical gear; 14. a step gear; 15. a horizontal rotating shaft; 16. a ratchet wheel; 17. a ringing cam; 18. a pawl; 19. a metal spring sheet; 20. a ram; 21. a metal bell; 22. a reset button; 23. a return spring; 24. a limit tension spring; 2-1, a first vertical rod; 2-2, a cross bar; 2-3, a second vertical bar; 2-4, a rotating shaft; 2-5, brake pads; 2-6, a swinging piece; 2-7, a return spring; 2-8, a limiting plate; 2-9, brake cable; 2-10, a handle; 2-11, a first clamping plate; 2-12, a second clamping plate; 2-13, a brake tension spring; 2-14, ribs; 3-1, a breathing cantilever frame; 3-2, a first sealed cavity; 3-3, an air inlet; 3-4, a breathing piston; 3-5, flexible pipe; 3-6, a breathing mask; 3-7, a tensioning mechanism; 3-8, a breathing cam; 3-9, a breathing motor; 3-10, a top rod; 3-11, a sliding block; 3-12, a breathing slide rail; 3-13, a guide block; 3-14, a rack; 3-15, gear; 3-16, a swinging block; 3-17, adjusting holes; 3-18, a breathing connecting rod; 3-19, a negative pressure cavity; 3-20, negative pressure piston; 3-21, a negative pressure adjusting knob; 3-22 parts of pressure gauge; 3-23, vent holes; 3-24, a suction tube; 3-25, a dirt bottle; 3-26, negative pressure relief holes; 3-27, side holes; 3-28, negative pressure turntable; 3-29, a negative pressure connecting rod; 3-30 parts of a negative pressure motor; 4-1, circulating a pressing device; 4-2, pressing the shell; 4-3, swinging the wheel disc; 4-4, a transmission rod; 4-5, pressing the sleeve; 4-6, pressing the sliding block; 4-7, pressing the lever; 4-8, pressing the slices; 4-9, adjusting groove; 4-10, circulating a mandril; 4-11, circulating cam; 4-12, circulating slide rails; 4-13, sliding sleeve; 4-14, a limit tension spring; 4-15, ropes; 4-16, reels; 4-11-1, a base portion; 4-11-2, cam portion; 4-11-3, first curve; 4-11-4, second curve; 4-11-5, third curve; 4-11-6, and returning to the straight line; 12-1, an earphone type elastic clip; 12-2, an inner container; 12-3, a water bag; 12-4, communicating pipes; 12-5, a water injection port; 12-6, a one-way valve; 12-7, a shunt tube; 12-8, an arc part; 12-9, a clamping arm; 12-10, ear muffs; 3-6-1, an elastic frame; 3-6-2, a support rod; 3-6-3, cover body; 3-6-4, split ring; 3-6-5, a macrocyclic moiety; 3-6-6, annular wall; 3-6-7, small annular sheets; 3-6-8 of hook plate; 3-6-9, and a suspension loop; 3-6-10 parts of elastic cord; 3-6-11, valve body; 3-6-12, floating one-way duck bill valve; 3-6-13, connecting plate; 3-6-14, a breathing hole; 3-6-15, observation cavity; 3-6-16 parts of separation net; 3-6-17, a float valve; 3-6-18, expiratory window.

Detailed Description

As shown in fig. 1, the cardio-pulmonary-cerebral resuscitation device of the invention comprises a backboard 1, a support adjusting frame 2 is arranged on the backboard 1, a breathing arm 3 and a circulating arm 4 are arranged on the adjusting frame, and an ice cap 12 is arranged on the device. Cardiopulmonary-cerebral resuscitation device has three major functions, press outward, breathe support and low temperature brain protection promptly, circulation arm 4 is used for carrying out the heart and presses and realize heart resuscitation, it is used for ventilating for the lung and realizes lung resuscitation to breathe arm 3, ice cap 12 is used for cooling down to the brain and realizes brain protection, the cooperation of triplex is used, carry out suitable chest to the patient and press, lung ventilates and brain cooling protection, make the patient resume the oxygen suppliment and reduce the oxygen demand of brain, reduce and avoid the damage because the oxygen deficiency causes even, with the survival rate maximize of the patient of cardiac arrest.

As shown in fig. 2, the breathing arm 3 comprises a breathing cantilever frame 3-1, and the breathing cantilever frame 3-1 is divided into two parts, wherein one part is used for ventilation and oxygen supply; the other part is used for negative pressure suction to suck the dirt in the oral cavity or the airway of the patient, so that the smoothness of the airway of the patient is ensured. The breathing cantilever frame 3-1 of the two parts is connected through a rotating shaft, and the two parts can rotate relatively.

For a breathing cantilever frame 3-1 part for ventilation and oxygen supply, a first sealing cavity 3-2 is formed inside the breathing cantilever frame 3-1, an air inlet 3-3 is formed on the first sealing cavity 3-2, a breathing piston 3-4 is installed in the first sealing cavity 3-2, and the breathing piston 3-4 reciprocates in the first sealing cavity 3-2 to realize the circulating air supply to the lung of a patient. The first sealed cavity 3-2 is communicated with a breathing mask 3-6 through a hose 3-5, the breathing mask 3-6 is connected with the breathing cantilever frame 3-1 through a tensioning mechanism 3-7, and the tensioning mechanism 3-7 provides tension to the breathing mask 3-6 in a specific direction.

As shown in fig. 3 and 4, the breathing mask 3-6 comprises an inverted U-shaped elastic frame 3-6-1, a tensioning mechanism 3-7 is connected to the elastic frame 3-6-1, hook plates 3-6-8 are arranged on the inner sides of the lower ends of two side arms of the elastic frame 3-6-1, and the hook plates 3-6-8 are used for hooking at the mandibular angle position of the mandible. The breathing mask 3-6 is buckled on the face of a patient, the hook plate 3-6-8 is hooked at the position of the lower jaw angle of the mandible, the elastic frame 3-6-1 is pulled upwards and in the direction of the top of the head through the tensioning mechanism 3-7, so that the hook plate 3-6-8 drives the chin of the patient to face upwards, the air passage of the patient is completely opened, and ventilation of the lung is facilitated.

A supporting rod 3-6-2 is fixed between the two side arms, a mask body 3-6-3 is arranged on the supporting rod 3-6-2, the mask body 3-6-3 can swing around the supporting rod 3-6-2, and the mask body 3-6-3 is kept buckled on the face of a patient in the process of drawing the breathing mask 3-6.

The lower port of the cover body 3-6-3 is provided with an open ring 3-6-4, the upper port of the cover body 3-6-3 is provided with a valve body 3-6-11, and the valve body 3-6-11 is communicated with a hose 3-5. The air in the first sealed cavity 3-2 enters the cover body 3-6-3 through the hose 3-5 and the valve body 3-6-11, in order to ensure that the mouth of the patient is in an open state, the open ring 3-6-4 is placed at the mouth of the patient, and the air enters the oral cavity of the patient through the channel of the open ring 3-6-4, so that the cover body 3-6-3, the oral cavity, the air passage and the lung are communicated with each other, and the lung of the patient can be effectively resuscitated.

The split ring 3-6-4 comprises a large ring-shaped sheet 3-6-5 and a small ring-shaped sheet 3-6-7 which are distributed up and down, the inner ring of the large ring-shaped sheet 3-6-5 is connected with the inner ring of the small ring-shaped sheet 3-6-7 through a ring-shaped wall 3-6-6, the edge of the large ring-shaped sheet 3-6-5 is connected to the air bag at the lower port of the cover body 3-6-3 at a position corresponding to the mouth, and the mask can be buckled on the face of a patient after the split ring 3-6-4 is placed on the mouth of the patient.

The two sides of the cover body 3-6-3 are provided with hanging lugs 3-6-9, and the hanging lugs 3-6-9, the supporting rods 3-6-2 and the hook plates 3-6-8 are connected through elastic cables 3-6-10. The position of the hanging lug 3-6-9 is far away from one end provided with the split ring 3-6-4, the hook plate 3-6-8 is hooked on the mandible, the cover body 3-6-3 is buckled on the face of a patient, the hanging lug 3-6-9 pulls the elastic cable 3-6-10 to enable the elastic cable 3-6-10 to deform to generate tensile force, and the cover body 3-6-3 is buckled on the face of the patient under the action of the tensile force.

The valve body has an autonomous respiration monitoring function and comprises a shell, a communicating port with a certain length is arranged at the position where the shell is communicated with a cover body, a floatable one-way duckbill valve is arranged in the shell, the upper end of the communicating port is connected with the inner wall of the shell through a connecting plate, a breathing hole is formed in the connecting plate, an observation cavity 3-6-15 is arranged on one side of the shell, the observation cavity 3-6-15 is communicated with the breathing hole, a floating valve 3-6-17 is arranged in the observation cavity 3-6-15, a separation net 3-6-16 is arranged below the floating valve 3-6-17, and an exhalation window 3-6-18 is formed above the floating valve 3-6-17. The floatable one-way duckbill valve 3-6-12 only allows air to flow from the valve body 3-6-11 to the cover body 3-6-3, the air drives the floatable one-way duckbill valve 3-6-12 to move downwards, thereby sealing the exhaling holes on the connecting plate 3-6-13, opening the duckbill valve by the air after the floatable one-way duckbill valve 3-6-12 moves to the lowest end, injecting fresh air or oxygen into the cover body 3-6-3, while the gas expelled from the lungs cannot pass through the floatable one-way duckbill valve 3-6-12, but lifts the floatable one-way duckbill valve 3-6-12, and after the floatable one-way duckbill valve 3-6-12 moves upwards, the breathing holes 3-6-14 are opened, and the discharged gas is discharged to the outside through the breathing holes 3-6-14.

When the patient needs to be observed whether spontaneous respiration is recovered, the movement of the respiration piston 3-4 is stopped, the float valve 3-6-17 in the observation cavity 3-6-15 is observed, if the patient resumes spontaneous breathing, the float valve 3-6-17 will float up and down with the patient's exhalation, because the air flow in the hood body can not pass through the floatable one-way duckbill valve but enters the observation cavity 3-6-15 through the breathing hole after the breathing piston 3-4 stops moving, when in expiration, the air flow pushes the float valve 3-6-17 to move upwards, when in inspiration, the air flow enters the cover body 3-6-3 through the hose 3-5, the float valve 3-6-17 loses buoyancy, falls onto the separation net 3-6-16 under the action of gravity, and whether the patient recovers spontaneous respiration can be visually determined by the up-and-down movement of the float valve 3-6-17. Whether breath exists at the mouth and nose of a patient is heard through the ears of a professional, whether the chest and abdomen of the patient fluctuate or not is observed, but the breath of the patient is easily interfered by the environment when the breath of the patient is perceived, the chest and abdomen of the patient is difficult to observe when the breath of the patient fluctuates, and the breathing mask needs to be taken down when the breath of the patient is heard, so that the normal treatment of the patient can be delayed.

The breathing piston 3-4 is driven by a reciprocating mechanism arranged on the breathing cantilever frame 3-1, the reciprocating mechanism comprises a cylindrical breathing cam 3-8, the breathing cam 3-8 is driven by a breathing motor 3-9, the surface of the breathing cam 3-8 is contacted with a breathing mandril 3-10, the breathing mandril 3-10 is connected with a gear 3-15 in an axial way, a slide block 3-11 which moves along the length direction of the breathing cantilever frame 3-1 is arranged in the breathing cantilever frame, vertical racks 3-14 are arranged on the sliding blocks 3-11, the gears 3-15 are meshed with the racks 3-14, the respiratory mandril 3-10 is driven to move up and down through the rotation of the gear 3-15, the respiratory mandril 3-10 is connected on the guide block 3-13 in a penetrating way, and the guide block 3-13 is arranged on the vertical respiratory slide rail 3-12 on the slide block 3-11 in a sliding way. The breathing cantilever frame 3-1 is connected with a fan-shaped swing block 3-16 in an axial mode, a piston is connected with the swing block 3-16 through a breathing connecting rod 3-18, the swing block 3-16 is provided with an adjusting hole 3-17, the length direction of the adjusting hole 3-17 is consistent with the radius direction of the swing block 3-16, and the end portion of a breathing mandril 3-10 is connected with the adjusting hole 3-17 in a sliding mode. The distance from the end part of the breathing mandril 3-10 to the swinging shaft of the swinging block 3-16 is adjusted by adjusting the upper and lower positions of the breathing mandril 3-10, so that the swinging amplitude of the swinging block 3-16 is adjusted, the stroke size of the breathing piston 3-4 is further adjusted, and the ventilation volume is adjusted to adapt to patients of different ages, sexes and weights.

The structure of the breathing cam is as shown in fig. 11, and the ratio of inspiration time to expiration time is 1: 1.5-1: 2.5.

In addition to opening the patient's mouth and airway, it is also necessary to ensure that the patient's airway is not blocked, and if there is a contaminant in the patient's mouth or airway, the patient cannot be ventilated with the breathing mask 3-6 directly and may be injured, so a negative pressure suction device is provided on the breathing arm 3.

The negative pressure suction device comprises a negative pressure cavity 3-19, the negative pressure cavity 3-19 is positioned in a breathing cantilever frame 3-1, the negative pressure cavity 3-19 is provided with a vent hole 3-23, the vent hole 3-23 is a one-way vent hole, only gas is allowed to enter the negative pressure cavity 3-19 through the vent hole 3-23, a negative pressure piston 3-20 is arranged in the negative pressure cavity 3-19, the negative pressure piston 3-20 is driven to reciprocate by a negative pressure motor 3-30, the negative pressure cavity 3-19 is provided with a pressure gauge 3-22 and a negative pressure adjusting knob 3-26, the negative pressure cavity 3-19 is communicated with a suction tube 3-24, a one-way valve flap is arranged at a communication port of the suction tube 3-24 and the negative pressure cavity 3-19, so that the gas can only flow from the suction tube to the negative pressure cavity 3-19, a dirt bottle 3-25 is communicated with the suction tube 3-24, the suction tube 3-24 is provided with a negative pressure releasing hole 3-26, and the side wall of the end part of the suction tube 3-24 is provided with a plurality of side holes 3-27.

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 reciprocate, so that the negative pressure piston 3-20 is driven to reciprocate, and the negative pressure in the negative pressure cavity 3-19 is controlled by adjusting the negative pressure adjusting knob 3-21 and the rotating speed of the negative pressure turntable 3-28.

When in use, the suction tube 3-24 is inserted into the oral cavity or the airway of a patient, dirt is sucked out by negative pressure, and the sucked dirt flows into the dirt bottle 3-25 to be collected.

Effective and stable delivery of oxygen to the patient's lungs is the basis for the entire resuscitation process, and only successful access of oxygen to the patient's lungs can ensure that the blood circulation is carrying sufficient amounts of oxygen. Oxygen enters the blood in the lungs, which needs to be pumped to various parts of the body by the beating of the heart, and therefore the heart needs to be resuscitated to restore blood flow.

As shown in fig. 5, cardiac resuscitation is accomplished by the circulatory arm 4, the circulatory arm 4 including a circulatory cantilever mount on which the circulatory compression device 4-1 is mounted.

The circulating pressing device 4-1 comprises a pressing shell 4-2, a swinging wheel disc 4-3 is installed in the pressing shell 4-2, the swinging wheel disc 4-3 swings around the center of the circle, 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 shell 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 with 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 port 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 carrying out chest pressing on the patient.

An adjusting groove 4-9 is arranged on the oscillating wheel disc 4-3 along the radius direction, a circulating ejector rod 4-10 is arranged on one side of the oscillating wheel disc 4-3, one end of the circulating ejector rod 4-10 is connected in the adjusting groove 4-9 in a sliding way, the other end of the circulating ejector rod 4-10 is in contact with the surface of a circulating cam 4-11, the circulating cam 4-11 is in a special-shaped column shape, a circulating slide rail 4-12 is arranged beside the circulating ejector rod 4-10, a slide sleeve 4-13 is sleeved on the circulating slide rail 4-12, the circulating ejector rod 4-10 is connected on the slide sleeve 4-13 in a penetrating way, a limit tension spring 244-14 is arranged on the slide sleeve 4-13, the limit tension spring 244-14 provides downward tension for the slide sleeve 4-13, an upward rope 4-15 is connected on the slide sleeve 4-13, the rope 4-15 is wound around the reels 4-16.

The height of the circulating mandril 4-10 is adjusted through the reel 4-16, so that the distance between the end part of the circulating mandril 4-10 and the center of the swinging wheel disc 4-3 is adjusted, the swinging amplitude of the swinging wheel disc 4-3 is adjusted, and the pressing depth of the pressing piece 4-8 is adjusted.

As shown in fig. 7, 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 shaped cylindrical, a rotation axis of the cam portion 4-11-2 coincides with a rotation axis of the base portion 4-11-1, a 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 sequentially connected end to end, the first curve 4-11-3 and the third curve 4-11-5 are circular arcs with the rotation axis as a center, a radius of the first curve 4-11-3 is smaller than a radius of the third curve 4-11-5, the second curve 4-11-4 is a semicircular arc, the diameter of the second curve 4-11-4 passes through the rotating shaft, the radius of the return straight line 4-11-6 is overlapped with that of the third curve 4-11-5, and the included angle of the third curve 4-11-5 and the fan-shaped circle center is 30-60 degrees.

The rotating shaft of the circulating cam 4-11 is in a vertical state, when the circulating ejector rod 4-10 moves up and down, the end part of the circulating ejector rod 4-10 is always in contact with the cam part 4-11-2, the fluctuation trend of the circumferential direction cannot be influenced by the up-and-down movement of the circulating ejector rod 4-10, and the rule of horizontal movement of the circulating ejector rod 4-10 on different heights is ensured to be unchanged.

The first curve 4-11-3 corresponds to the highest point of the pressing sheet 4-8, at this time, the pressure in the chest and the heart is lowest, and blood flows back to the heart, the second curve 4-11-4 corresponds to the pressing sheet 4-8 pressing process, at this time, the volume of the heart is gradually reduced, during the process that the volume of the heart is reduced, blood continuously flows back to the heart under the action of inertia at first, the pressure in the heart rises at a certain moment to stop the backflow of blood, then the pressure in the heart continues to rise along with the continuous reduction of the volume of the heart, and the blood in the heart is output, the third curve 4-11-5 corresponds to the lowest point of the pressing sheet 4-8, the pressing sheet 4-8 stays at the lowest point for a period of time, the pressing state is maintained on the heart, so that the blood in the heart is fully discharged, and the return straight line 4-11-6 presses the pressing sheet 4-8 to return to the highest point, the process is short in time, the heart recovers to the maximum volume state immediately after fully discharging the blood, and the generated negative pressure accelerates the backflow of the blood.

The special structure of the cam part 4-11-2 of the circulating cam 4-11 can lead the blood to discharge more blood in one period, and then quickly generate negative pressure to accelerate the backflow of the blood, thereby improving the blood supply capacity of the heart.

The blood discharge curve of cardiac congestion under the action of the circulatory compression device 4-1 of the present invention is shown in fig. 8, wherein the solid line represents the present invention, the dotted line represents the conventional compression mode, and the grid line region represents the increased cardiac output of the present invention.

The circulating pressing device 4-1 is adjustable in pressing depth, the adjusting range is 4-6 cm, the infant is 4 cm, the child is 5 cm, and the circulating pressing device is 5-6 cm for teenagers and adults. The pressing time is increased by the structural design of the cam part 4-11-2, so that the pressing and lifting time is longer than the conventional pressing/lifting time ratio of 1:1.

According to the traditional manual pressing and pressing mode, the thorax rebounds under the resistance of the arms of a person when lifted, and the thorax rebounds at the fastest speed. But the improved cam design can quickly release the pressure applied on the chest wall, realize the rapid and complete thoracic rebound, and the blood flow can flow back to the heart at a higher speed in the same time, thereby increasing the blood volume of the heart, improving the compression efficiency and improving the treatment success rate. (the ratio of the time of manual compression/relaxation is 1:1, since the time of each compression is less than 0.6 seconds under the high-frequency compression of not less than 100 times/minute, even though a professional is pressed outside the heart and chest, the ratio of the time of each compression and the time of relaxation is difficult to accurately grasp as a fixed value).

The normal ventricular filling is mainly due to the pumping action generated by the relaxation of active energy consumption of the ventricles and the extrusion generated by the contraction of the atria, but the diastolic function and the contraction of the atria of the patient suffering from sudden cardiac arrest are necessarily affected, so that the ventricular filling speed is slowed down, the filling degree is reduced, and the circulation power is mainly from the change of the thoracic cavity pressure. The invention adjusts the period of one pressing cycle without changing the time length of the previous pressing cycle, and prolongs the time of the sternum at the lowest position so as to improve the stroke volume. Although the relaxation time is shortened, the relaxation is complete relaxation achieved at a faster rate, and the blood reflux rate is increased, so that the reflux of the same amount or more of blood can be achieved in a shorter time.

Besides ensuring oxygen supply, the reduction of the oxygen demand of the brain is also very critical, in the past, many patients are resuscitated and rescued, the heart has already jumped, but serious damage is caused by the lack of oxygen of the brain, and the result is that the brain is in a vegetative state instead of being long-term and worried about the world, so that people can be worried about the wrist. Therefore, modern medicine places more and more importance on protecting the brain during resuscitation, and traditional cardiopulmonary resuscitation also requires increased brain protection to become cardiopulmonary resuscitation. Since the brain is a highly aerobic organ, it is least tolerant to hypoxia. At normothermia, brain cells undergo irreversible necrosis in more than 4 minutes in the absence of oxygen supply. It must also be pointed out that: after sudden cardiac arrest, a patient has brain damage in a degree proportional to the body temperature and the ambient temperature, and the higher the temperature, the faster the brain cells metabolize and the faster the brain cells necrose. Conversely, the lower the temperature, the slower the brain cells will necrose. Therefore, the method is very key for cooling the brain of the patient with sudden cardiac arrest, and can obviously improve the success rate of first aid and avoid serious sequelae.

As shown in fig. 6, the ice cap 12 includes an earphone type elastic clip 12-1, an inner container 12-2 and an outer covering layer are fixed on the earphone type elastic clip 12-1, and both the inner container 12-2 and the outer covering layer are curved structures for covering the head. A water bag 12-3 is fixed between the inner container 12-2 and the outer wrapping layer, the water bag 12-3 is used for storing liquid water, an ice crystal powder layer is filled in the inner container 12-2, a communicating pipe 12-4 is arranged on the water bag 12-3, the communicating pipe 12-4 is communicated with the inner container 12-2 directly or through a shunt pipe 12-7, and a water filling port 12-5 and a one-way valve 12-6 are arranged on the communicating pipe 12-4. The water filling port 12-5 is used for filling water into the water bag 12-3, and the check valve 12-6 is used for preventing liquid water mixed with cryolite from flowing back into the water bag 12-3. The inner container 12-2 is divided into a plurality of grids, and ice crystal powder is filled in each grid structure, so that uneven distribution caused by the flow of the ice crystal powder in the inner container 12-2 can be prevented.

The earphone type elastic clip 12-1 comprises an arc-shaped part 12-8 used for being clamped on the forehead and clamping arms 12-9 used for being clamped on the two sides of the head, and ear cups 12-10 are arranged on the clamping arms 12-9. When in use, the clamping arms 12-9 at two sides are positioned at the temples at two sides, the ear muffs 12-10 cover ears, and the arc-shaped part 12-8 is positioned on the forehead, thereby fixing the whole ice cap 12 on the head. This structure can be firmly fixed to the head and avoids the mounting position of the breathing mask 3-6 and the interference with the breathing mask 3-6.

The ice crystal powder is composed of anhydrous sodium carbonate and glycerol, and is dissolved and absorbs heat after being mixed with water, so that the environmental temperature is reduced. When the ice cap 12 is not used, ice crystal powder and water cannot be contacted, the ice cap can be stored for a long time, when the brain of a patient needs to be protected, the one-way valve 12-6 is opened, the water bag 12-3 is pressed to fully discharge liquid water into the inner container 12-2, then the earphone type elastic clamp 12-1 is clamped at two sides of the head of the patient, and the inner container 12-2 covers the brain to cool the brain.

In order to prevent the patient from moving left and right after the patient is placed on the back plate 1 to cause unfixed pressing position, a limiting mechanism is arranged on the back plate 1 and comprises adjusting structures arranged on two sides of the upper surface of the back plate 1, and the patient is positioned between the two adjusting structures.

Adjust the structure and include two parallels and set up spout 8 on 1 surface of backplate, be equipped with a plurality of parallel furrows 9 each other between two spouts 8, 9 perpendicular to spouts 8 of furrows, be provided with carriage 10 on spout 8, the lower extreme sliding connection of carriage 10 is in spout 8, it has support frame 11 to articulate on carriage 10, when using, adjust the position of two carriage 10 earlier, make carriage 10 just contact with the both sides of patient's health, then go into the recess with the lower side card of support frame 11 in, thereby support and fix carriage 10, just also fix patient's health, guarantee that the removal can not take place at the health of pressing the in-process patient, thereby guarantee the stability and the accuracy of pressing.

The breathing arm 3 and the circulating arm 4 are both installed on the supporting and adjusting frame 2 and are adjusted in position by the supporting and adjusting frame 2, the supporting and adjusting frame 2 comprises a first vertical rod 2-1 vertically installed 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 portion of the cross rod 2-2, two swinging rods 5 which are parallel to each other are hinged to one side of the second vertical rod 2-3, fixing rods 7 are hinged to the end portions of the two swinging rods 5, and a pull rope 6 is connected to a diagonal line of a parallelogram formed by the two swinging rods 5. The circulating arm 4 is mounted on the fixed rod 7, and the breathing arm 3 is mounted on the first vertical rod 2-1. The brake mechanism is respectively arranged on a rotating shaft 2-4 connected with a cross rod 2-2 and a first vertical rod 2-1, a rotating shaft 2-4 connected with the cross rod 2-2 and a second vertical rod 2-3, a part where a swinging rod 5 is connected with the second vertical rod 2-3, the rotating shaft 2-4 connected with the first vertical rod 2-1 and a breathing cantilever frame 3-1, and the rotating shaft 2-4 connected with a negative pressure suction section and a ventilation and oxygen supply section of the breathing cantilever frame 3-1, and is connected with a locking device through a brake line 2-9, and after the positions of the breathing arm 3 and the circulating arm 4 are adjusted, the brake mechanism can be pulled by two independent locking devices to fix the positions respectively.

As shown in fig. 9, the band-type brake mechanism comprises arc brake pads 2-5, the brake pads 2-5 surround a rotating shaft 2-4, the end parts of the brake pads 2-5 are connected with swinging pieces 2-6, the swinging pieces 2-6 can swing around the installation shafts of the swinging pieces, brake cables 2-9 are connected with the end parts of the swinging pieces 2-6, a limiting plate 2-8 is fixed on one side of the rotating shaft, the brake cables 2-9 penetrate through the limiting plate 2-8, and return springs 2-7 are sleeved on the brake cables 2-9 between the brake pads 2-5 and the limiting plate 2-8. The brake cable 2-9 is pulled to enable the brake pad 2-5 to be attached to the rotating shaft 2-4, the rotating of the rotating shaft 2-4 is limited through friction, and meanwhile the return spring 2-7 is compressed. When the brake cable 2-9 is released, the brake pads 2-5 are pushed to return to the original position under the driving of the elastic restoring force of the return springs 2-7, so that the height and the angle of the breathing arm 3 and the circulating arm 4 can be adjusted to adapt to different patients.

As shown in figure 10, the locking device comprises handles 2-10 hinged on a 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 handles 2-10, the second clamping plate 2-12 is hinged on the handles 2-10, the second clamping plate 2-12 is connected with the handles 2-10 through a band-type brake tension spring 2-13, and convex ribs 2-14 are respectively arranged on the first clamping plate 2-11 and the second clamping plate 2-12. When the brake mechanism needs to be released, the second clamping plate 2-12 is shifted to enable the convex ribs 2-14 on the second clamping plate 2-12 to be separated from the convex ribs 2-14 on the first clamping plate 2-11, and then the brake cable 2-9 can be released.

A tension spring is arranged on one side of the end part of the circulating cam 4-11 and is positioned on one side of the third curve 4-11-5, and the initial position of the circulating ejector rod 4-10 is in contact with the surface where the first curve 4-11-3 is positioned, so that the pressing rod 4-7 is positioned at the highest point in each use.

One side of the end part of the breathing cam 3-8 is connected with a tension spring, so that the initial position of the breathing mandril 3-10 is the lowest point of the cam, when the breathing cam 3-8 rotates, the breathing mandril 3-10 is lifted up immediately, and the breathing mask 3-6 supplies air immediately.

The breathing cam 3-8, the negative pressure rotating disc 3-28 and the circulating cam 4-11 are driven by a motor and are also connected with a manual crank, and when the power supply cannot be connected or the power failure occurs, the circulating arm 4 and the breathing arm 3 can be driven by the manual crank. When the manual hand-cranking driving is adopted, the shaking frequency needs to be determined so as to determine the pressing and ventilation frequency, a pressing frequency table and a breathing frequency table are installed on the equipment, and after the pressing frequency table and the breathing frequency table are adjusted according to the age of a patient, an operator only needs to shake a manual crank along with the frequency of the pressing frequency table and the breathing frequency table; the hand crank of the negative pressure suction device is shaken at different speeds to generate certain negative pressure suction force, so that effective cardio-pulmonary resuscitation under the conditions of no electricity and no driving air source is realized.

As shown in fig. 12 and 13, the present invention further includes a count ring alert function and a reset alert function. When using manual crank drive circulation arm, can realize once every 30 bells of pressing, remind to accomplish a set of pressure, need ventilate this moment, breathe the cam through manual crank drive immediately and rotate, ventilate the patient, then carry out the pressure of next group. This function is realized by the following structure: the counting mechanism comprises a counting gear 13, the counting gear 13 and a circulating cam rotate synchronously, a stepping gear 14 is arranged beside the counting gear 13, the counting gear 13 only has one tooth, 30 teeth are arranged on the stepping gear 14, the stepping gear 14 is driven to rotate by one tooth angle when the counting gear 13 rotates by one circle, and when the counting gear 13 rotates by 30 circles, the stepping gear 14 rotates by one circle. The stepping gear 14 is installed on a horizontal rotating shaft 15, a ratchet wheel 16 and a bell cam 17 are further installed on the horizontal rotating shaft 15, the ratchet wheel 16 is in contact with a pawl 18, a metal elastic sheet 19 is arranged beside the bell cam 17, one end of the metal elastic sheet 19 is fixed, the other end of the metal elastic sheet is suspended and close to the bell cam 17, a hammer 20 is fixed on the metal elastic sheet 19, a metal bell 21 is arranged beside the hammer 20, and when the bell cam 17 rotates for a circle along with the stepping gear 14, the hammer 20 on the metal elastic sheet 19 impacts the metal bell 21 once.

Horizontal rotating shaft 15 is installed on the mounting bracket, and horizontal rotating shaft 15 can move along length direction on the mounting bracket, has reset button 22 at the end connection of horizontal rotating shaft 15, installs reset spring 23 between reset button 22 and mounting bracket, is connected with spacing extension spring 24 on jingle bell cam 17. When the circulating arm starts to be pressed, the ringing cam 17 is possibly not at the initial position, and premature ringing can be caused, when the circulating arm is used, the reset button 22 needs to be pressed firstly, the horizontal shaft drives the step gear 14, the ratchet wheel 16 and the ringing cam 17 to move along the horizontal shaft, the ratchet wheel 16 and the pawl 18 are separated from each other after the movement, the step gear 14 is separated from the counting gear 13, the step gear 14, the ratchet wheel 16 and the ringing cam 17 rotate back to the initial position under the pulling of the limit tension spring 24, the reset button 22 is released, the ratchet wheel 16 is in contact with the pawl 18 again, and the step gear 14 is in contact with the counting gear 13 again, so that each ringing reminding process is started from the initial position, and premature ringing is avoided.

Claims (10)

1. A cardio pulmonary cerebral resuscitation device comprising:

a back plate placed on the ground or bed plate for supporting the whole device and for placing a patient;

the support adjusting frame is arranged on the back plate and used for installing the breathing arm and the circulating arm and adjusting the positions of the breathing arm and the circulating arm;

the circulating arm is arranged on the support adjusting frame and is used for carrying out chest compression;

the breathing arm is arranged on the support adjusting frame and used for ventilating a patient, and comprises a breathing cantilever frame, a negative pressure suction device and a ventilating device are arranged on the breathing cantilever frame, the ventilating device comprises a first sealing cavity arranged in the breathing cantilever frame, an air inlet is formed in the first sealing cavity, a breathing piston is arranged in the first sealing cavity, the first sealing cavity is communicated with a breathing mask through a hose, the breathing mask is connected with the breathing cantilever frame through a tensioning mechanism and comprises an inverted U-shaped elastic frame, a hook plate is arranged on the inner side of the lower end of two side arms of the elastic frame, a support rod is arranged between the two side arms, a mask body is arranged on the support rod, a split ring is arranged at the lower port of the mask body and comprises a large annular sheet and a small annular sheet which are distributed up and down, the inner ring of the large annular sheet is connected with the inner ring of the small annular sheet through an annular wall, the edge of the large annular sheet is connected to the position, corresponding to the mouth, of the lower port of the cover body, a valve body is arranged at the upper port of the cover body, the valve body is communicated with a hose, hanging lugs are arranged on two sides of the cover body, and the hanging lugs, the supporting rod and the hook plate are connected through elastic cables; and

and the ice cap is used for cooling the brain of the patient.

2. The cardiopulmonary and cerebral resuscitation device of claim 1, wherein the valve body comprises a housing, a communication port with a certain length is arranged at a position where the housing is communicated with the cover body, a floatable one-way duckbill valve is arranged in the housing, the upper end of the communication port is connected with the inner wall of the housing through a connecting plate, a breathing hole is formed in the connecting plate, an observation cavity is arranged at one side of the housing and is communicated with the breathing hole, a float valve is arranged in the observation cavity, a separation net is arranged below the float valve, and an exhalation window is arranged above the float valve.

3. The cardiopulmonary and cerebral resuscitation device of claim 1, wherein the ice cap comprises an earphone-type elastic clip, an inner container and an outer covering layer are arranged on the earphone-type elastic clip, a water bag is arranged between the inner container and the outer covering layer, an ice crystal powder layer is filled in the inner container, a communicating pipe is arranged on the water bag, the communicating pipe is communicated with the inner container directly or through a shunt pipe, and a water injection port and a one-way valve are arranged on the communicating pipe; earphone formula elasticity presss from both sides including being used for the arc portion of card on the forehead and being used for the card arm of card both sides head is provided with the ear muff on the card arm.

4. The cardiopulmonary and cerebral resuscitation device according to claim 1, wherein the breathing piston is driven by a reciprocating mechanism arranged on the breathing cantilever frame, the reciprocating mechanism comprises a cylindrical breathing cam, the breathing cam is driven by a breathing motor, a mandril is in contact with the surface of the breathing cam, a gear is arranged on the mandril, a slider moving along the length direction of the breathing cantilever frame is arranged on the breathing cantilever frame, a rack is arranged on the slider, the gear is meshed with the rack, the mandril is driven to move along the central axis direction of the breathing cam by the rotation of the gear, the piston is connected with a swing block through a breathing connecting rod, an adjusting hole is formed in the swing block, and the end part of the mandril is in sliding connection with the adjusting hole.

5. The cardiopulmonary and cerebral resuscitation device according to claim 1, wherein the negative pressure suction device comprises a negative pressure cavity, a negative pressure piston is arranged in the negative pressure cavity, the negative pressure piston is driven by a negative pressure motor to reciprocate, a pressure gauge and a negative pressure adjusting knob are arranged on the negative pressure cavity, the negative pressure cavity is communicated with a suction tube, a dirt bottle is communicated with the suction tube, a negative pressure releasing hole is formed in the suction tube, and a plurality of side holes are formed in the side wall of the end part of the suction tube.

6. The cardio-pulmonary-cerebral resuscitation device according to claim 1, wherein the circulation arm comprises a circulation cantilever frame, a circulation pressing device is arranged on the circulation cantilever frame, 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 is hinged with the transmission rod, a pressing rod is arranged below the pressing slider, the lower end of the pressing rod extends out of the lower port of the pressing sleeve, a pressing sheet is arranged at the lower end of the pressing rod, an adjusting groove is formed in the swinging wheel disc along the radial direction, a circulation mandril is arranged at one side of the swinging wheel disc, and one end of the circulation mandril is slidably connected in the adjusting groove, the other end of circulation ejector pin and the surface contact of circulation cam, the circulation cam is heterotypic column the other circulation slide rail that is provided with of circulation ejector pin the sliding sleeve has been cup jointed on the circulation slide rail, the circulation ejector pin passes and connects on the sliding sleeve be provided with spacing extension spring on the sliding sleeve, spacing extension spring does the sliding sleeve provides decurrent pulling force be connected with ascending rope on the sliding sleeve, the rope winding is on the reel.

7. The cardiopulmonary and cerebral resuscitation device of claim 6, wherein the circulation cam comprises a base portion and a cam portion, the base portion is cylindrical, the cam portion is shaped like a special cylinder, a rotation axis of the cam portion coincides with a rotation axis of the base portion, a cross-sectional profile of the cam portion comprises a first curve, a second curve, a third curve and a return straight line, the first curve and the third curve are sequentially connected end to end, the first curve and the third curve are circular arcs with the rotation axis as a center, a radius of the first curve is smaller than a radius of the third curve, the second curve is a semicircular arc, a diameter of the second curve passes through the rotation axis, a radius of the return straight line coincides with a radius of the third curve, and an included angle formed by the third curve and a circle center is 30-60 °.

8. The CPR apparatus of claim 1, wherein the hook plate comprises 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 located at 110-130 degrees, the bottom plate is connected with the lower end of the elastic frame, and the elastic cable is connected with the bottom plate.

9. Cardiopulmonary and cerebral resuscitation device according to claim 1, wherein the backboard comprises a limiting mechanism, the limiting mechanism comprises adjusting structures arranged on two sides of the upper surface of the backboard, each adjusting structure comprises two parallel sliding grooves, a plurality of mutually parallel grooves are arranged between the two sliding grooves, the grooves are perpendicular to the sliding grooves, a sliding frame is arranged on the sliding grooves, a supporting frame is hinged on the sliding frame, and the lower side edge of the supporting frame is clamped into the groove in use.

10. The cardiopulmonary and cerebral resuscitation device according to claim 1, wherein the support and adjustment frame comprises a first vertical rod arranged on the backboard, 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 swinging rods parallel to each other are hinged on one side of the second vertical rod, fixed rods are hinged at the ends of the two swinging rods, and a pull rope is connected on the diagonal line of the parallelogram formed by the two swinging rods; the position where the cross rod is connected with the first vertical rod, the position where the cross rod is connected with the second vertical rod, the position where the second vertical rod is connected with the swing rod, the position where the first vertical rod is connected with the breathing cantilever frame, and the negative pressure suction device and the ventilation device are respectively provided with an anti-braking mechanism, and the anti-braking mechanism is connected with the locking device through a brake line.

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