CN119732832A - Cardiopulmonary resuscitation device and control method thereof - Google Patents

Abstract

The invention provides a cardiopulmonary resuscitation device and a control method thereof, and relates to the technical field of medical appliances. The reciprocating driving module comprises a fixing frame, a driving assembly and a movable piece, wherein the driving assembly is fixed on the fixing frame and drives the movable piece to perform reciprocating motion, the adsorption module comprises an active sucker, the active sucker is arranged on the movable piece, the chest collapse detection module comprises a force sensor and a distance sensor, the force sensor is arranged on the movable piece, the distance sensor is arranged on the reciprocating driving module, and the reciprocating driving module, the adsorption module and the chest collapse detection module are electrically connected with the control module. The control module adjusts the working states of the driving assembly and the adsorption module according to the detection result, so that adaptability to different chest conditions is realized, secondary damage caused by excessive compression can be avoided especially for patients with chest fracture, and the effectiveness and safety of cardiopulmonary resuscitation are improved.

Description

Cardiopulmonary resuscitation device and control method thereof

Technical Field

The invention relates to the technical field of medical equipment, in particular to a cardiopulmonary resuscitation device and a control method thereof.

Background

Cardiopulmonary resuscitation (CPR) is a key measure for rescuing patients suffering from cardiac arrest. Traditional CPR methods perform artificial circulation by chest compressions, but for patients with chest fractures, there is a certain risk of this approach. The integrity of the thorax is compromised by fracture of the ribs or sternum, and conventional chest compressions tend to cause further damage, such as pneumothorax, haematocarcinoma, etc., and may even cause the broken ends of the bones to puncture internal organs. In addition, due to chest collapse, traditional CPR methods have difficulty in effectively performing chest compressions, resulting in poor resuscitation.

Most of the prior cardiopulmonary resuscitation devices are not specially designed for patients with chest fracture, and the compression depth and the compression force of the prior cardiopulmonary resuscitation devices are fixed and cannot be adjusted according to the specific conditions of the patients. This can easily cause secondary injury to patients with chest fracture, reducing the success rate of CPR.

Therefore, there is an urgent need for a cardiopulmonary resuscitation device that can adapt to the special needs of patients with chest fracture, and can effectively perform chest compressions on the premise of avoiding secondary injuries, thereby improving the success rate of CPR.

Disclosure of Invention

In order to solve the problems that when the prior cardiopulmonary resuscitation device in the related art is used for carrying out cardiopulmonary resuscitation on a patient, the compression depth and the force cannot be fixed, secondary damage is easy to cause, and the compression effect is poor due to chest cavity collapse, so that the success rate of cardiopulmonary resuscitation is reduced, one of the purposes of the invention is to provide the cardiopulmonary resuscitation device which integrates a reciprocating driving module, an adsorption module capable of adjusting negative pressure, a chest cavity collapse detection module and a control module. The control module dynamically adjusts the pressing depth and frequency of the reciprocating driving module and the adsorption force of the adsorption module according to the real-time data provided by the chest collapse detection module so as to solve the problems that secondary damage is easy to occur and the pressing effect is poor when cardiopulmonary resuscitation is carried out on a patient with chest fracture in the prior art, thereby improving the success rate of cardiopulmonary resuscitation.

A cardiopulmonary resuscitation device, comprising:

the reciprocating driving module comprises a fixed frame, a driving assembly and a movable piece, wherein the driving assembly is fixed on the fixed frame and drives the movable piece to perform reciprocating motion;

The adsorption module comprises an active sucking disc which is arranged on the movable piece;

The chest collapse detection module comprises a force sensor and a distance sensor, wherein the force sensor is arranged on the movable piece, and the distance sensor is arranged on the reciprocating driving module;

and the reciprocating driving module, the adsorption module and the chest collapse detection module are electrically connected with the control module.

Further, the chest collapse detection module monitors the pressing force and the pressing stroke through the force sensor and the distance sensor, and when the same force is used at the chest, the chest has a larger stroke or smaller force is acquired under the condition of the same stroke, namely the chest collapse is judged.

Further, the adsorption module further comprises a negative pressure pump and a control valve, the active sucker is connected with the negative pressure pump, the control valve is connected with the negative pressure pump, the negative pressure pump is used for generating negative pressure, and the control valve is used for adjusting the size of the negative pressure.

The suction force of the active sucker is controllable and adjustable by the negative pressure pump and the control valve. The control valve can accurately adjust the negative pressure generated by the negative pressure pump, thereby controlling the adsorption force of the active sucker. The device can adapt to the chest situation and the skin condition of different patients, provides proper adsorption force, ensures the adsorption effectiveness and avoids skin injury caused by overlarge adsorption force.

Further, the force sensor comprises a pressure sensor and a tension sensor, the pressure sensor comprises, but is not limited to, a piezoresistive sensor, a capacity sensor, a piezoelectric sensor, a magnetoelectric sensor, a strain type pressure sensor, an optical fiber pressure sensor, a spoke type sensor and the like, the force sensor mainly has the effects of measuring whether the pressing force is enough or not, and is also linked with the negative pressure pump and the tension sensor, when the pressure sensor senses that the pressure exists, the negative pressure pump starts to work, negative pressure is generated to adsorb the chest of a patient, the tension sensor measures the adsorption force, and the working strength of the negative pressure pump is adjusted in real time according to the size of the adsorption force.

Further, negative pressure pumps include, but are not limited to, electric unidirectional pumps, electric bi-directional pumps, and backup manual pumps. When the electric one-way air pump is adopted, the air is pumped during operation, the edge of the active sucker is slightly moved to finish pressure relief after cardiopulmonary resuscitation is finished, and when the electric two-way air pump is adopted, the air is pumped during operation, and the air is discharged from the electric two-way air pump to finish pressure relief after cardiopulmonary resuscitation is finished. In addition, when the negative pressure air pressure is insufficient for some reasons, the pressure can be further increased by a manual air pump, so that the proper pressure can be obtained.

Further, the control module can monitor the chest rebound condition in real time through the feedback data of the tension sensor, when the rib is broken and the chest is difficult to rebound, the control module transmits signals to the negative pressure pump to increase the extraction quantity, form larger negative pressure and enable chest compression to be carried out smoothly.

Further, the device also comprises a ventilation module, wherein the ventilation module is connected with the control module.

The ventilation module enables the device to provide respiratory support for a patient while chest compressions are carried out, and the success rate of cardiopulmonary resuscitation is further improved.

Further, the ventilation module comprises a ventilation air bag, an air inlet and an air passage, wherein the ventilation air bag is arranged between the fixed frame and the movable piece, one end of the ventilation air bag is connected with the fixed frame, the other end of the ventilation air bag is connected with the movable piece, and the ventilation air bag is respectively connected with the air inlet and a patient through the air passage.

The ventilation air bag, the air inlet, the air passage and the movable piece are matched for use, positive pressure ventilation can be realized, air is effectively sent into the lung of a patient, and the oxygenation state of the patient is improved. When the movable piece moves, the stretching ventilation air bag inhales through the air inlet, the compression ventilation air bag ventilates to a patient through the air passage, the compression breathing ratio of 1:1 is realized, the ventilation volume and the ventilation pressure can be controlled more accurately, and the ventilation efficiency and the ventilation safety are improved.

Further, the structure of the ventilation balloon comprises, but is not limited to, an accordion bellows shape, an artificial lung shape, an ellipsoid balloon shape and the like, the ventilation balloon is compressible in the transverse and longitudinal directions, and the ventilation balloon is made of non-toxic and harmless materials including, but not limited to, natural rubber, silicon rubber, BOPP, HDPE, PP and the like.

Further, the ventilation module further comprises a one-way valve, a pressure regulating valve and a throttle valve, the high-frequency ventilation tidal volume is 1-6ml/kg, the ventilation pressure is controlled by the pressure regulating valve, the ventilation pressure is about 3-30cm H2O, and the one-way valve, the pressure regulating valve and the throttle valve are connected with the air passage through pipeline interfaces of 2 mm-10 mm.

Further, the ventilation module further includes a bladder width adjuster for adjusting the width of the ventilation bladder, the bladder width adjuster including, but not limited to, a three jaw chuck, a four jaw chuck, a universal joint chuck, a wedge clamping mechanism, a screw clamping mechanism, a pneumatic clamping, an eccentric clamping mechanism, a hinge clamping mechanism, and the like. The air bag width adjuster can change the cross section of the ventilation air bag so as to adjust the ventilation amount.

Further, in addition to the linkage cooperation of the ventilation air bag and the movable member, the ventilation module may further include a pressing assembly for pressing the ventilation air bag, and the pressing assembly is electrically connected with the control assembly.

Further, the ventilation module can also be composed of an air inlet, an air filter, an electromagnetic valve, a safety valve, a pressure regulating valve, a throttle valve and a cylinder. The electromagnetic valve, the safety valve, the pressure regulating valve, the throttle valve and the air cylinder are connected with the control module and controlled by the control module.

Further, the abdomen control device also comprises an abdomen lifting module, wherein the abdomen lifting module is electrically connected with the control module;

The abdomen is carried and is drawn the module and is included fixed chassis, altitude mixture control post and carry and draw the subassembly, fixed chassis is used for filling up to patient below, altitude mixture control post is fixed in on the fixed chassis, carry and draw the subassembly and draw driver and carry the face including carrying, carry the driver drive carry and draw the face and be close to or keep away from fixed chassis, carry and draw the face to be fixed in on the altitude mixture control post.

The abdomen lifting module can be matched with chest compression to carry out abdomen lifting, simulate diaphragm movement, assist respiration and improve ventilation effect. The height-adjustable lifting plate surface can adapt to the body types of different patients, the fixed chassis provides stable support, and the lifting driver can control the lifting time, frequency and amplitude, so that more accurate, more effective and more comfortable abdomen lifting is realized.

Further, the abdomen lifting module further comprises a pressing head and a lifting driver, and the initial position of the lifting plate surface is adjusted through the height adjusting column so as to work in cooperation with the lifting driver. The lifting assembly has two working modes, one is a fixed position mode and the other is a matched chest compression mode. The specific matching method for matching the chest compression mode is that when the chest is pressed down, the lifting plate surface is properly lifted, when the chest rebounds, the lifting plate is properly lowered, and the activity of diaphragm muscle is enhanced so as to achieve better cardiopulmonary resuscitation effect.

Furthermore, the pressing head can be made of silica gel materials, including but not limited to butyl rubber, polyurethane elastomer, chloroprene rubber, polysulfide rubber, nitrile rubber and other materials, and has the main effects of reducing local stress on the abdomen and preventing injury to patients during abdomen pressure rising.

Further, the pressing mode of the pressing head comprises a mode that the motor drives the screw rod to work in a forward and reverse rotation mode and also comprises a mode that the electromagnetic valve is controlled to open and close in a pneumatic mode to control pressing and the like.

Further, still include monitoring module, monitoring module with the control module electricity is connected, monitoring module is used for monitoring patient's vital sign to with monitoring data transmission to control module, monitoring module includes:

The blood oxygen sensor is used for monitoring blood oxygen saturation;

A blood pressure sensor for monitoring blood pressure;

a respiration sensor for monitoring respiration rate and tidal volume;

The monitoring module can monitor critical vital signs such as blood oxygen saturation, blood pressure and respiratory frequency of a patient in real time and transmit data to the control module. The control module can adjust the compression depth, frequency, ventilation volume and the like according to the monitoring data, so that more personalized CPR treatment is realized, and the effectiveness and safety of CPR are improved.

Further, the device can also comprise a display screen, the monitoring data is displayed on the display screen of the device in real time, so that the monitoring data is convenient for operators to observe, and the monitoring data can be stored in a memory of the device, so that the subsequent analysis and evaluation are convenient.

Further, the system further comprises a defibrillation module electrically connected with the control module, the defibrillation module comprising:

a pair of defibrillation electrode pads for connection with a patient;

An energy storage and release unit for storing and releasing defibrillation energy;

The defibrillation module is electrically connected with the control module, and the control module controls the defibrillation module to work according to the monitoring data.

The integrated defibrillation module enables the device to defibrillate immediately when needed without changing equipment, thereby saving valuable rescuing time and improving survival rate of patients. The control module can automatically judge whether defibrillation is needed according to the monitoring data and control the energy release unit to release defibrillation energy, thereby realizing automatic defibrillation and improving the efficiency and safety of defibrillation.

Further, the control module controls the operation of the defibrillation module according to the monitoring data. When the patient has poor state, such as heart arrest, rapid blood pressure reduction and the like, defibrillation work is automatically performed.

Further, the driving assembly comprises a motor and a nut, the movable piece comprises a screw rod, the motor is in transmission connection with the nut, the motor drives the nut to rotate, and the nut is in threaded fit with the screw rod.

By adopting the motor to drive the screw nut mechanism, the reciprocating motion of the movable piece can be accurately controlled, the accurate control of the pressing depth, the frequency and the waveform is realized, and the quality of CPR is improved. The motor drive also makes the device more automated, reducing operator's burden.

Further, the active suction cup is selected from a first suction cup, a second suction cup and a third suction cup;

the first sucker is a round sucker;

the second sucker is provided with at least two inner notches for avoiding breasts;

and a decompression assembly is arranged in the third sucker.

Because the chest difference of men and women is great, if all adopt unified circular sucking disc, the female can leave some gaps when using the sucking disc, leads to the negative pressure not enough even unable absorption. Three different types of suckers are provided, and patients with different sexes and ages can be better adapted. The circular sucking disc is applicable to standard body type, and the sucking disc with interior notch is applicable to female patient, and the decompression sucking disc is applicable to old person or the fragile patient of chest to improve the security of CPR, and avoid causing secondary damage.

Further, the third sucker is provided with a damping device in the conventional sucker, and the damping device comprises but is not limited to structures such as a small sucker and a spring decompression device, so that the risk of rib fracture and injury after fracture are reduced.

Another object of the present invention is to provide a method for controlling a cardiopulmonary resuscitation device, which is applied to the cardiopulmonary resuscitation device, and includes the following steps:

Adsorbing the chest of the patient by an adsorption module;

performing cardiopulmonary compression by a reciprocating drive module;

detecting the chest collapse degree through the chest collapse detection module;

And adjusting working parameters of the driving assembly and negative pressure adsorption force of the active sucker according to the chest collapse degree.

The beneficial effects of the invention are as follows:

The invention provides a cardiopulmonary resuscitation device which comprises a reciprocating driving module, an adsorption module, a chest collapse detection module and a control module. The driving component drives the movable piece to reciprocate, so that the artificial cardiopulmonary resuscitation pressing action is simulated. Meanwhile, the active sucking disc adsorbs the chest of a patient and provides supporting force, and the chest collapse degree is detected in real time by matching with the force sensor and the distance sensor. The control module adjusts the working states of the driving assembly and the adsorption module according to the detection result, so that adaptability to different chest conditions is realized, secondary damage caused by excessive compression can be avoided especially for patients with chest fracture, and the effectiveness and safety of cardiopulmonary resuscitation are improved. The control module can adjust pressing and adsorbing parameters in real time according to the chest collapse degree, and further damage to the collapsed chest can be avoided.

Drawings

FIG. 1 is a schematic view of a cardiopulmonary resuscitation device provided by example 1 of the present application for use on a person;

FIG. 2 is a schematic view of three active suction cups provided in example 1 of the present application;

FIG. 3 is a connection diagram of the ventilation module provided in example 1 of the present application;

FIG. 4 is a schematic view of an abdomen lifting module provided in the present application;

FIG. 5 is a schematic diagram at the ventilation module and reciprocating drive module provided in embodiment 2 of the present application;

FIG. 6 is a schematic diagram at the reciprocating drive module and the adsorption module provided in embodiment 2 of the present application;

fig. 7 is a schematic diagram of the control module, monitoring module and defibrillation module provided in embodiment 2 of the present application.

Reference numerals:

100. A reciprocating drive module; 110, a driving component 120, a movable piece;

200. Suction module, 210, active suction cup, 211, first suction cup, 212, second suction cup, 2121, inner notch, 213, third suction cup, 2131, pressure reducing component;

310. A pressure sensor;

400. a control module;

501. An air bag 502, an air inlet 503, an air passage 504, a one-way valve 505, a pressure regulating valve 506, a throttle valve 507, an air bag width regulator 508, an air filter 509, an electromagnetic valve 510, a safety valve 511 and a cylinder;

600. abdomen lifting module, 610, fixed chassis, 620, height adjusting column, 630, lifting component, 631, lifting driver, 632, lifting board surface, 633, pressing head;

710. blood oxygen sensor, 720, blood pressure sensor, 730, respiration sensor;

810. A pair of defibrillation electrode pads;

Detailed Description

Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Example 1

As shown in fig. 1 to 4, the present embodiment provides a cardiopulmonary resuscitation device applied to first aid in hospitals, which is pneumatically driven to perform compression using a high-pressure air source driving cylinder 511 of the hospital. Connect with the central oxygen supply system of the hospital or use the high-capacity oxygen bottle. The cardiopulmonary resuscitation device, as shown in fig. 1, includes:

The chest compression device comprises a ventilation module, a reciprocating driving module 100, an adsorption module 200, a chest collapse detection module, a control module 400, a monitoring module, a defibrillation module and an abdomen lifting module 600.

As shown in fig. 3, the ventilation module includes an intake port 502, an air filter 508, a solenoid valve 509, a relief valve 510, a pressure regulating valve 505, a throttle valve 506, and a cylinder 511.

When the air is pushed down, the solenoid valve 509 is energized to operate in the upper position, and the air is taken in from the air inlet 502, passes through the air filter 508, and then the pressure regulating valve 505 and the throttle valve 506 are adjusted to control the pressing force and the pressing depth of the air cylinder 511.

When the solenoid valve 509 is pulled upward, the solenoid valve 509 is operated in the lower position, and the cylinder 511 is returned by a spring.

The reciprocating driving module 100 includes a fixed frame, a driving assembly 110, and a movable member 120.

The fixing frame is used for fixing the whole device.

The driving assembly 110 is used for driving the movable member 120 to reciprocate. In this embodiment, the drive assembly 110 is a pneumatic system, using a hospital high pressure air source to drive the cylinder 511.

The movable member 120 is coupled to the driving assembly 110 to perform a reciprocating motion. In this embodiment, the movable member 120 is a piston of a cylinder 511.

The adsorption module 200 includes an active suction cup 210, a negative pressure pump, and a control valve.

The active suction cup 210 is disposed on the movable member 120 for sucking the chest of the patient. In this embodiment, the active suction cup 210 is selected from the group consisting of a first suction cup 211, a second suction cup 212, and a third suction cup 213, as shown in FIG. 2.

The first suction cup 211 is a circular suction cup and is suitable for standard body types.

The second suction cup 212 is provided with at least two inner recesses 2121 for avoiding the breast, adapted for female patients.

The third sucker 213 is provided with a decompression assembly 2131 therein, and the damping device comprises but is not limited to structures such as a small sucker, a spring decompression and the like, so that the risk of rib fracture and injury after fracture are reduced. In this embodiment, a small suction cup is provided within the third suction cup 213.

The negative pressure pump may include an electric unidirectional air pump, an electric bidirectional air pump, and a backup manual air pump. Is used for generating negative pressure and adsorbing the chest of a patient.

The control valve is connected with the negative pressure pump and used for adjusting the magnitude of negative pressure.

The chest collapse detection module comprises a force sensor and a distance sensor.

The force sensor is provided on the movable member 120 for measuring the pressing force. In this embodiment, the force sensors include a pressure sensor 310 and a tension sensor. Specifically, the pressure sensor 310 is a spoke sensor.

The distance sensor is provided on the reciprocating driving module 100 for measuring a pressing stroke. In this embodiment, a laser ranging sensor.

The control module 400 may use a single chip microcomputer, an embedded system, a microprocessor, etc., and configure corresponding sensor interfaces, drive interfaces, and communication interfaces as needed.

The control module 400 receives signals from the chest collapse detection module, the monitoring module, and the abdomen lifting module 600, and controls the operating states of the reciprocating drive module 100, the adsorption module 200, the ventilation module, and the defibrillation module according to the signals.

The control module 400 controls the operation of the defibrillation module based on the monitoring data. When the patient has poor state, such as heart arrest, rapid blood pressure reduction and the like, defibrillation work is automatically performed.

The monitoring module includes an oxygen sensor 710, a blood pressure sensor 720, and a respiration sensor 730.

The blood oxygen sensor 710 is used to monitor blood oxygen saturation.

The blood pressure sensor 720 is used to monitor blood pressure.

Respiration sensor 730 is used to monitor respiratory rate and tidal volume.

The defibrillation module includes a pair of defibrillation electrode pads 810 and an energy storage and release unit.

A pair of defibrillation electrode pads 810 are used for connection with the patient.

The energy storage and release unit is used for storing and releasing defibrillation energy.

As shown in fig. 4, the belly lifting module 600 includes a stationary chassis 610, a height adjustment post 620 and a lifting assembly 630.

The stationary chassis 610 is used to cushion under the patient.

The height adjustment posts 620 are fixed to the fixed chassis 610 for adjusting the initial position of the lift plate face 632.

The lifting assembly 630 includes a lifting driver 631, a lifting plate surface 632 and a pressing head 633, wherein the lifting driver 631 drives the lifting plate surface 632 to be close to or far from the fixed chassis 610, and the pressing head 633 is disposed on the lifting plate surface 632.

The pressing head 633 may be made of a silicone material, and more specifically, the silicone material may include butyl rubber, polyurethane elastomer, neoprene, polysulfide rubber, nitrile rubber, etc., which has a main function of reducing local stress on the abdomen and preventing injury to the patient when the abdomen is lifted.

The lifting driver 631 cooperates with the pressing head 633 to control the movement of the lifting plate face 632 in two modes, a fixed position mode and an external chest compression mode.

In the hospital, medical staff medical knowledge is more comprehensive, and the operator can be through setting up the abdomen and carry suitable frequency, cooperates chest to press in order to reach better cardiopulmonary resuscitation effect.

Working principle:

the appropriate active suction cup 210 is selected as needed and the suction module 200 is used to suction the patient's chest.

Chest compressions are performed using the reciprocating drive module 100 and the compression depth, frequency and suction force are adjusted in real time by the control module 400 according to the signals provided by the chest collapse detection module.

Ventilation is performed using the ventilation module and ventilation parameters are adjusted by the control module 400 based on vital sign data provided by the monitoring module.

When the monitoring module detects that defibrillation is required, the control module 400 initiates the defibrillation module to defibrillate.

The abdomen lifting module 600 can be started as required, and can be matched with chest compression to perform abdomen lifting, simulate diaphragm movement and assist breathing.

The cardiopulmonary resuscitation device provided by the embodiment is suitable for a hospital emergency scene, and can provide more accurate, more effective and safer CPR treatment. The existing high-pressure air source and central oxygen supply system of the hospital are utilized, and powerful power and accurate ventilation control are provided through pneumatic driving and high-frequency jet ventilation. The integrated multiple functional modules, including the monitoring module, defibrillation module and belly carry and draw the module 600, can be according to patient's specific condition, real-time adjustment presses degree of depth, frequency, adsorption affinity, ventilation parameter etc. realize more individualized CPR treatment to improve rescue efficiency through automatic defibrillation function.

Example 2

As shown in fig. 4 to 7, the present embodiment provides a cardiopulmonary resuscitation device applied to home emergency treatment, which is pressed by using a motor-driven screw nut mechanism, and supplied with air using a small oxygen cylinder. The cardiopulmonary resuscitation device includes:

1. Ventilation module (as shown in fig. 5):

The structure of the ventilation balloon 501 includes, but is not limited to, an accordion bellows shape, an artificial lung shape, an ellipsoid balloon shape, etc., which is compressible in the transverse and longitudinal directions, and the material thereof is a nontoxic and harmless material including, but not limited to, natural rubber, silicone rubber, BOPP, HDPE, PP, etc. In this embodiment, a compressible ellipsoidal balloon shape is used, and the material is medical grade silicone rubber. The width regulators are arranged on two sides of the air bag, and the ventilation amount is controlled by regulating the width of the air bag. The width adjuster employs a pneumatic clamping mechanism, controlled by the control module 400. An oxygen bottle is connected to deliver oxygen to the ventilation bladder 501.

The bladder width adjuster 507 may include a three-jaw chuck, a four-jaw chuck, a universal joint chuck, a wedge clamping mechanism, a screw clamping mechanism, a pneumatic clamping, an eccentric clamping mechanism, a hinge clamping mechanism, and the like. For adjusting the width of the ventilation air bag 501, and changing the cross section of the ventilation air bag 501, thereby adjusting the ventilation amount.

The airway 503 connects the ventilation air bag 501 with the patient, and adopts a soft and difficult-to-bend silica gel tube to ensure smooth ventilation.

Check valve 504 to prevent gas from flowing back and ensure uniform ventilation direction.

Pressure regulating valve 505, for regulating the ventilation pressure, is maintained within a safe range of 3-30cmH 2O.

Throttle valve 506 for controlling the ventilation flow and adjusting the ventilation rate as required. The throttle valve 506 is connected with the air passage 503 by a 5mm pipeline interface.

2. Reciprocating drive module 100:

The fixing frame is made of metal material, is stable and firm and is used for fixing the whole device.

The driving assembly 110 adopts a direct current motor to drive the nut to rotate. The motor reduces the rotation speed through a speed reducer and converts the rotary motion into linear motion through a screw nut mechanism.

The screw rod is made of wear-resistant metal, is matched with the nut to realize linear motion, and is connected to the pressing head 633.

And the nut is matched with the screw thread of the screw rod to realize the conversion from rotation to linear motion.

The pressing head 633 is connected with the screw rod, is made of wear-resistant silica gel, is designed according to ergonomics, ensures comfortable pressing experience, and avoids hurting the chest of a patient.

When the device is used for carrying out cardiopulmonary resuscitation on a patient, the motor is rotated positively and negatively to drive the nut to rotate, and the nut rotates to drive the screw rod to move back and forth along the axis direction, namely, to move up and down. When the screw rod moves downwards, the chest cavity is pressed, the ventilation air bag 501 is stretched and inflated, when the screw rod moves upwards, the chest cavity is stretched, the ventilation air bag 501 is compressed, gas is pumped into a patient body, and the high-frequency injection method is utilized to pump gases such as oxygen into the lung, so that better oxygen supply is achieved compared with the traditional pressing ventilation ratio of 30:2.

3. Adsorption module 200 (shown in fig. 6):

The active suction cup 210 is detachably connected to the movable member 120 and different suction cups are selected as required. The suction cup type includes a first suction cup 211, a second suction cup 212, and a third suction cup 213. The first suction cup 211 is a circular suction cup and is suitable for standard-sized patients. The second suction cup 212 is provided with at least two inner recesses 2121 for avoiding the breast, adapted for female patients. The third sucker 213 is a special sucker for the aged, and a damping device is added in the conventional sucker, and is of a spring decompression structure, so that the risk of rib fracture and injury after fracture are reduced. Further, an adhesive layer of a colloid material may be disposed on the acting surface of the colloid material, so that the active suction cup 210 can be further guaranteed to be closely attached to the skin surface.

The negative pressure pump adopts an electric unidirectional air pump, and the negative pressure is regulated by a control valve.

And the control valve is used for controlling the negative pressure of the negative pressure pump and is provided with a safety valve 510 for preventing the negative pressure from being excessive and avoiding damaging the skin of a patient.

4. Chest collapse detection module:

The force sensor is a strain gauge sensor and is arranged on the pressing head 633 for measuring pressing force.

The distance sensor adopts an ultrasonic distance measuring sensor and is arranged on the fixing frame and used for measuring the distance between the pressing head 633 and the chest.

When the rib is intact, the human chest can rebound normally, the active sucker 210 can meet the requirement of external chest compression only with lower adsorption force, and when the rib is fractured in a large area, the chest collapses, the normal rebound cannot be realized, the negative pressure pump works, the negative pressure is enhanced, and the adsorption chest rebounds. Can reduce the side injury caused by chest compression as much as possible.

5. Control module 400:

the control module 400 is implemented by a single chip microcomputer and is responsible for coordinating the work of each module.

The control module 400 receives signals from the chest collapse detection module, the monitoring module, and the abdomen lifting module 600, and controls the operating states of the reciprocating drive module 100, the adsorption module 200, the ventilation module, and the defibrillation module according to the signals.

The control module 400 controls the operation of the defibrillation module based on the monitoring data. When the patient has poor state, such as heart arrest, rapid blood pressure reduction and the like, defibrillation work is automatically performed.

6. Monitoring module (as shown in fig. 7):

Blood oxygen sensor 710 for monitoring blood oxygen saturation.

A blood pressure sensor 720 for monitoring blood pressure.

Respiration sensor 730 for monitoring respiratory rate and tidal volume. In this embodiment an end-tidal carbon dioxide sensor.

7. Defibrillation module (as shown in fig. 7):

A pair of defibrillation electrode pads 810 for connection to a patient.

An energy storage and release unit for storing and releasing defibrillation energy.

During cardiopulmonary resuscitation, vital signs of the patient need to be monitored in real time to give different procedures, and the average person lacks sufficient medical knowledge, so that in this embodiment professional procedures are built into the device in advance. Through monitoring of end-of-breath carbon dioxide, blood pressure and blood oxygen, when the vital signs of a patient are poor, the patient can automatically defibrillate without stopping pressing ventilation, and meanwhile, as the chest collapse condition can be detected, the pressing force can be reduced when the chest collapses in the embodiment, so that unnecessary damage to the patient is avoided.

8. Abdomen lifting module 600:

The chassis 610 is fixed and used for being padded below a patient, and the bottom is made of anti-slip materials, so that stability is ensured.

The height adjusting pole 620 is fixed on the fixed chassis 610 and is adjusted in height by a handle or a motor so as to adapt to the body types of different patients.

The pulling assembly 630 includes a pulling driver 631, a pulling plate face 632, and a pressing head 633. The lift driver 631 is driven by a motor to control the speed and magnitude of movement of the lift plate 632.

The lifting plate surface 632 is made of soft and wear-resistant materials and is fixed on the height adjusting column 620, and the position can be adjusted according to the requirement.

The pressing head 633 is positioned on the lifting plate surface 632, and is made of soft silica gel material so as to avoid injuring the abdomen of a patient.

The lifting driver 631 is connected with the control module 400 and controls the movement of the lifting plate surface 632, and has two modes, namely a fixed position mode and a matched chest compression mode.

In the home, the abdomen lifting device can be installed for achieving better cardiopulmonary resuscitation. If the operator does not know the abdomen lifting principle, the operator only needs to adjust the lifting device to a proper height to lightly press the abdomen of the patient.

Working principle:

Suction, selecting a proper active suction cup 210 according to the specific situation of the patient, mounting the active suction cup 210 on the movable member 120, placing the active suction cup 210 on the chest of the patient, and sucking the active suction cup 210 on the chest of the patient by using the suction module 200.

The pressing-starting device controls the reciprocating driving module 100 through the control module 400, and adjusts the pressing depth, frequency and adsorption force according to the detected chest collapse degree.

Ventilation based on the monitored blood oxygen saturation and respiratory rate, the control module 400 adjusts ventilation parameters to provide appropriate respiratory support for the patient.

Defibrillation when the monitoring module detects arrhythmia or cardiac arrest of the patient, the control module 400 automatically starts the defibrillation module to defibrillate.

Abdomen lifting, namely, the abdomen lifting module 600 is started as required, the movement of the lifting plate face 632 is controlled through the control module 400, the movement of diaphragm muscles is simulated, and breathing is assisted.

The cardiopulmonary resuscitation device provided by the embodiment is specially designed for home first aid, adopts motor drive and a small-sized oxygen bottle for air supply, and is more convenient and easier to use. The monitoring module, the defibrillation module and the abdomen lifting module 600 are integrated, can be intelligently controlled according to the condition of a patient, and adapt to patients with different sexes and ages through different suckers. The portability, the safety and the adaptability to different patients are more emphasized, and reliable guarantee is provided for home emergency treatment.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

It should be noted that the terms "first", "second", and the like are used for convenience of distinction, and the terms are not specifically defined unless otherwise stated, and thus should not be construed as limiting the scope of the present application.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A cardiopulmonary resuscitation device, comprising:

The reciprocating driving module (100) comprises a fixed frame, a driving assembly (110) and a movable piece (120), wherein the driving assembly (110) is fixed on the fixed frame, and the driving assembly (110) drives the movable piece (120) to reciprocate;

the adsorption module (200) comprises an active sucker (210), and the active sucker (210) is arranged on the movable piece (120);

The chest collapse detection module comprises a force sensor and a distance sensor, wherein the force sensor is arranged on the movable piece (120), and the distance sensor is arranged on the reciprocating driving module (100);

And the reciprocating driving module (100), the adsorption module (200) and the chest collapse detection module are electrically connected with the control module (400).

2. Cardiopulmonary resuscitation device according to claim 1, wherein:

the adsorption module (200) further comprises a negative pressure pump and a control valve, the active sucker (210) is connected with the negative pressure pump, the control valve is connected with the negative pressure pump, the negative pressure pump is used for generating negative pressure, and the control valve is used for adjusting the magnitude of the negative pressure.

3. Cardiopulmonary resuscitation device according to claim 1, wherein:

the system further comprises a ventilation module, wherein the ventilation module is connected with the control module (400).

4. Cardiopulmonary resuscitation device according to claim 1, wherein:

The abdomen control device further comprises an abdomen lifting module (600), wherein the abdomen lifting module (600) is electrically connected with the control module (400);

The abdomen lifting module (600) comprises a fixed chassis (610), a height adjusting column (620) and a lifting assembly (630), wherein the fixed chassis (610) is used for being padded below a patient, the height adjusting column (620) is fixed on the fixed chassis (610), the lifting assembly (630) comprises a lifting driver (631) and a lifting plate surface (632), the lifting driver (631) drives the lifting plate surface (632) to be close to or far away from the fixed chassis (610), and the lifting plate surface (632) is fixed on the height adjusting column (620).

5. Cardiopulmonary resuscitation device according to claim 1, wherein:

Still include monitoring module, monitoring module with control module (400) electricity is connected, monitoring module is used for monitoring patient's vital sign to with monitoring data transmission to control module (400), monitoring module includes:

An blood oxygen sensor (710) for monitoring blood oxygen saturation;

a blood pressure sensor (720) for monitoring blood pressure;

a respiration sensor (730) for monitoring the respiration rate and tidal volume.

6. The cardiopulmonary resuscitation device of claim 5, wherein:

also included is a defibrillation module electrically connected with the control module (400), the defibrillation module comprising:

a pair of defibrillation electrode pads (810) for connection to a patient;

An energy storage and release unit for storing and releasing defibrillation energy;

the defibrillation module is electrically connected with the control module (400), and the control module (400) controls the defibrillation module to work according to the monitoring data.

7. Cardiopulmonary resuscitation device according to claim 1, wherein:

The driving assembly (110) comprises a motor and a nut, the movable piece (120) comprises a screw rod, the motor is in transmission connection with the nut, the motor drives the nut to rotate, and the nut is in threaded fit with the screw rod.

8. Cardiopulmonary resuscitation device according to claim 1, wherein:

The active suction cup (210) is selected from a first suction cup (211), a second suction cup (212) and a third suction cup (213);

the first sucker (211) is a round sucker;

The second sucker (212) is provided with at least two inner notches (2121) for avoiding the breast;

a decompression assembly (2131) is arranged in the third sucker (213).

9. A cardiopulmonary resuscitation device according to claim 3, wherein:

The ventilation module comprises a ventilation air bag (501), an air inlet (502) and an air channel (503), wherein the ventilation air bag (501) is arranged between the fixed frame and the movable piece (120), one end of the ventilation air bag (501) is connected with the fixed frame, the other end of the ventilation air bag is connected with the movable piece (120), and the ventilation air bag (501) is respectively connected with the air inlet (502) and a patient through the air channel (503).

10. A method of controlling a cardiopulmonary resuscitation device according to any one of claims 1-9, applied to a cardiopulmonary resuscitation device, comprising the steps of:

adsorbing the chest of the patient by an adsorption module (200);

Cardiopulmonary compression by a reciprocating drive module (100);

detecting the chest collapse degree through the chest collapse detection module;

and adjusting the working parameters of the driving assembly (110) and the negative pressure adsorption force of the active sucker (210) according to the chest collapse degree.