CN113081777A

CN113081777A - Chest compression device

Info

Publication number: CN113081777A
Application number: CN202110412352.8A
Authority: CN
Inventors: 孔伟方; 章军辉; 陈贝利; 孟凡奎; 刘立嫱
Original assignee: Suzhou Shangling Medical Technology Co ltd
Current assignee: Suzhou Shangling Medical Technology Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-07-09

Abstract

The invention relates to a chest compression device, which comprises a pressing part and a belt, wherein a first rotating part and a second rotating part are respectively arranged on two sides of the pressing part, the first end part of the belt is connected with the first rotating part, the second end part of the belt is connected with the second rotating part, the chest compression device adopts the mode of pressing the whole pressing part to perform chest compression action, the mode that the existing pressing device adopts an air cylinder, a screw rod and other push-out pressing heads is completely abandoned, the swinging of the rotating part is converted into the pressing of the pressing part, and the mode is simple and convenient to carry.

Description

Chest compression device

Technical Field

The invention relates to the technical field of chest compression devices, in particular to a chest compression device.

Background

Sudden cardiac arrest refers to the sudden cessation of the ejection function of the heart, resulting in interruption of the blood circulation, cessation of breathing, and loss of consciousness throughout the body. According to related statistical data, about 180 million people die of sudden death in China every year, wherein the sudden death outside the hospital reaches 72% -80%, so timely and effective cardiopulmonary resuscitation is the first link for survival of patients with heart disease outbreak. Sudden cardiac arrest is best at a 4 minute time, often late outside the hospital if waiting for the doctor or rescuer to come. The traditional cardiopulmonary resuscitation mainly adopts a manual external chest compression mode (direct heart compression is rarely performed during an open chest operation), but the method has the characteristics of easy compression fatigue, inconsistent compression force, irregular compression rhythm and the like, and particularly, when long-time compression is needed, the success rate of rescue of a patient is easy to decrease, and meanwhile, the sternum injury of the patient is easy to cause due to incorrect operation manipulation. Therefore, the electric cardio-pulmonary resuscitation equipment is urgently equipped in public places and places with large people flow.

Currently, medical developed areas such as the united states, japan, etc. have been equipped with emergency equipment according to population density, and related mechanical emergency equipment is deployed in public places. At present, the heart emergency treatment device is installed in public places all over the country, and the public places are provided with external heart emergency treatment facilities for work. However, only AED defibrillation equipment is available at present, and no more important external chest compression equipment is available, and the main reason is that most of the existing portable cardiopulmonary resuscitation equipment used in public places adopts a structural form that a cylinder ejects a compression head, and the structural form is generally similar to the structural form that the volume of the equipment is large, the operation is inconvenient, and the popularization and the use in public places are difficult.

For example, patent document CN201356780Y relates to a miniaturized portable cardiopulmonary resuscitation assisting device, which comprises a compressed oxygen tank, wherein a pressure reducing valve is arranged at the end of the compressed oxygen tank, an input port of a two-position three-way emergency stop switch is connected with the pressure reducing valve, an output port of the two-position three-way emergency stop switch is connected with a cylinder assembly through a gas transmission pipe, a cylinder base plate is arranged at the bottom of the cylinder assembly, one end of a bandage is connected with the cylinder base plate, and the other end of the bandage is connected with a bandage. The thorax pressing type cardiac resuscitation device integrates a thorax pressing mode and a thorax pressing mode, so that the cardiac resuscitation is more effective;

patent application document CN108969339A discloses a cardiopulmonary resuscitation device and a cardiopulmonary resuscitation method thereof, belonging to the technical field of cardiopulmonary resuscitation, and comprising a vital sign monitoring bracelet, a sheath and a pressing belt; the sheath is sleeved on the human thorax, the sheath is provided with a lock catch, the sheath is provided with a pressing head, the lower end surface of the pressing head is an elastic pressing strip, and the elastic pressing strip is provided with a displacement sensor; a pressure control cavity is arranged in the pressing head, and an air inlet is arranged at one side of the pressure control cavity; a controller is fixedly connected to the pressing head, a pressure control unit is arranged in the controller, two sides of the pressure control unit are respectively connected with a tightening device, one end of the pressing belt is connected with the tightening device, and the other end of the pressing belt is connected with the sheath; the controller is respectively with vital sign monitoring bracelet, displacement sensor wireless connection.

The patent document CN201356780Y adopts a form that a cylinder ejects a pressing head to press, and the patent application document CN108969339A performs mechanical cardiopulmonary resuscitation on a patient through the control of a controller and the combined action of the pressing head and a sheath; but the pressing structure and the pressing mode are complex and need further improvement.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the conventional portable cardio-pulmonary resuscitation pressing equipment, and further provides a brand-new chest pressing device which can also be a cardio-pulmonary resuscitation device.

The chest compression device comprises a compression part and a belt surrounding the chest, wherein a first rotating part and a second rotating part are respectively arranged on two sides of the compression part, the first end part of the belt is connected with the first rotating part, the first end part of the belt is connected with the second rotating part, and the belt surrounds the periphery of the chest.

Preferably, the pressing portion includes a driving device for driving the first rotating portion and the second rotating portion to rotate.

Preferably, the first rotating portion includes a first swing arm and a first rotating member, the first rotating member is connected to the first swing arm, the first rotating member drives the first swing arm to rotate, the second rotating portion includes a second swing arm and a second rotating member, the second rotating member is connected to the second swing arm, the second rotating member drives the second swing arm to rotate, the first end portion of the belt is connected to the first swing arm, and the second end portion of the belt is connected to the second swing arm.

Preferably, the driving device is used for driving the first rotating member and the second rotating member to rotate.

Preferably, the driving device is used for driving the first swing arm and the second swing arm to swing, the first swing arm can drive the first end portion to move, and the second swing arm can drive the second end portion to move. Specifically, after the pressing part is powered on, the driving device drives the first swing arm and the second swing arm to swing synchronously, and when the first swing arm and the second swing arm swing upwards, the belt is contracted, the circumference of the belt around the thoracic cavity is shortened, the cross section of the thoracic cavity of the patient is driven to be reduced, positive pressure in the thoracic cavity is generated, and three-dimensional extrusion contraction is formed on the heart; when the first swing arm and the second swing arm swing downwards to return to the original position, the driving belt surrounding the chest cavity is driven to actively return to the initial circumference, the cross section of the chest cavity of a patient is driven to restore the original size, negative pressure is formed in the chest cavity, the heart is relaxed under the action of the negative pressure, the negative pressure of the heart inner cavity is increased, and blood flows back to the heart.

Preferably, the first swing arm comprises a first swing rod and a first cross rod; the first swing rod is connected with the first cross rod, and the second swing arm comprises a second swing rod and a second cross rod; the second swing rod is connected with the second cross rod;

the first cross rod is connected with the first rotating piece through a first swing rod, the second cross rod is connected with the second rotating piece through a second swing rod, the first end portion of the belt is connected with the first cross rod, and the second end portion of the belt is connected with the second cross rod.

Preferably, the number of the first swing rods is 2, one end of the first rotating part is connected with one of the first swing rods, the other end of the first rotating part is connected with the other first swing rod, and a first cross rod is arranged between the 2 first swing rods; the number of the second swing rods is 2, one end of the second rotating piece is connected with one of the second swing rods, the other end of the second rotating piece is connected with the other 1 second swing rod, and second cross rods are arranged between the 2 second swing rods.

Preferably, the pressing part is of a cross-shaped structure, and the pressing surface of the pressing part is of a cross-shaped structure; the pressing portion comprises a first extension arm and a second extension arm, and the first rotating portion and the second rotating portion are arranged in the first extension arm and the second extension arm of the pressing portion respectively.

Preferably, the first rotating part is located inside the first extension arm, the 2 first swing rods are symmetrically arranged on two sides of the first extension arm respectively, the second rotating part is located inside the second extension arm, and the 2 second swing rods are symmetrically arranged on two sides of the second extension arm.

Preferably, the pressing part is of a rectangular structure, and the pressing surface of the pressing part is of a rectangular structure; the 2 first swing rods are symmetrically arranged on two sides of the short edge of the pressing part respectively, and the 2 second swing rods are symmetrically arranged on two sides of the other short edge of the pressing part respectively.

Preferably, the pressing part is of an oval structure, and the pressing surface of the pressing part is of an oval structure; the 2 first swing rods are symmetrically arranged on two sides of the pressing part short shaft respectively, and the 2 second swing rods are symmetrically arranged on two sides of the other pressing part short shaft respectively.

Preferably, the pressing portion includes a first portion and a second portion, the first portion is a convex portion, the first portion is located in the middle of the second portion, the 2 first swing rods are located on two sides of a short side of the second portion respectively, the 2 second swing rods are located on two sides of another short side of the second portion respectively, and the two sides of the convex portion are provided with 1 first swing rod and 1 second swing rod respectively.

Preferably, the belt includes a first contact surface, a second contact surface and an extension surface, the extension surface is disposed between the first contact surface and the second contact surface, the first contact surface is connected to the first rotating portion, and the second contact surface is connected to the second rotating portion.

Preferably, the belt further includes a third contact surface, a first extension surface is disposed between the first contact surface and the third contact surface, a second extension surface is disposed between the second contact surface and the third contact surface, the first extension surface, the third contact surface, the second extension surface and the extension surface are sequentially connected, and the third contact surface is connected with the pressing surface of the pressing portion.

Preferably, a rotation angle of the first rotation portion and the second rotation portion is 90 ° or less.

Preferably, said drive means comprises at least one motor.

Preferably, the first rotating part and the second rotating part are driven by the same motor or driven by two motors to rotate respectively.

In another aspect, the present invention provides a chest compression device, comprising a pressing portion and a strap, wherein a first rotating portion and a second rotating portion are respectively disposed at two sides of the pressing portion,

the belt comprises a first end and a second end, the first end of the belt is connected with the first rotating part, and the second end of the belt is connected with the second rotating part;

the pressing part also comprises a controller and a driving device,

the controller outputs a control signal, the driving device receives the control signal, and the controller drives the first rotating portion and the second rotating portion to swing according to the control signal.

In yet another aspect, the invention provides a method of chest compression comprising

Driving the first rotating part and the second rotating part to rotate;

the first rotating portion and the second rotating portion drive the belt to move, and the pressing portion presses.

Preferably, the controller controls the driving device to drive the first rotating portion and the second rotating portion to rotate.

Preferably, the pressing part and the belt are combined to surround the chest, the initial length of the pressing part is consistent with the circumference of the chest, the belt length surrounding the chest is reduced in the pressing period, the periphery of the chest is synchronously squeezed, and the pressing part presses the chest again.

Preferably, the controller controls the timer to output a fixed pulse to control the enable bit, and the first and second rotating parts are changed as the enable bit is changed.

The pressing depth of the pressing part provided by the invention is determined by the pulse width output by the singlechip (when the pulse width is 500 microseconds, the rotating angles of the first rotating part and the second rotating part correspond to-90 degrees, when the pulse width is 1000 microseconds, the rotating angles of the first rotating part and the second rotating part correspond to-45 degrees, and when the pulse width is 1500 microseconds, the rotating angles of the first rotating part and the second rotating part correspond to 0 degree).

Preferably, before the first rotating portion and the second rotating portion are driven to rotate, it is determined whether the enable bit is at a high level or a low level, if the enable bit is at the high level, the driving device drives the first rotating portion and the second rotating portion to rotate, the pressing portion performs a pressing operation, and if the enable bit is at the low level, the driving device is not started, the pressing portion does not start pressing.

Compared with the prior art, the invention has the following beneficial effects:

the chest compression device creatively adopts the form that the pressing part is integrally pressed to perform cardio-pulmonary resuscitation compression action, completely abandons the form that the existing cardio-pulmonary resuscitation compression device adopts a cylinder, a screw rod and the like to push out a compression head, only depends on the pressing part to press or bounce to perform the compression action during the compression action, and converts the swing of the swing arm into the compression of the pressing part, so that the electric cardio-pulmonary resuscitation machine has the advantages of smaller volume and convenient carrying, can be used by being tied to the position of the chest of a patient and then switching on a power supply without redundant operation steps, is more suitable for non-professional medical personnel to use, and achieves the purpose of emergency cardio-pulmonary resuscitation in public places.

Drawings

In order that the present invention may be more readily and clearly understood, reference is now made to the following detailed description taken in conjunction with the accompanying drawings, in which:

fig. 1a is a schematic structural view of a chest compression device of embodiment 1;

FIG. 1b is a front view of the chest compression device provided in FIG. 1a with the strap removed;

fig. 1c is a schematic view of another bandage path configuration for a chest compression device;

fig. 2a is a schematic structural view of the chest compression device provided in embodiment 2;

fig. 2b is a schematic top view of the chest compression device provided in fig. 2 a;

fig. 3a is a schematic structural view of the chest compression device provided in embodiment 3;

FIG. 3b is a schematic top view of the chest compression device provided in FIG. 3 a;

fig. 4a is a schematic structural view of a chest compression device provided in embodiment 4;

FIG. 4b is a schematic top view of the chest compression device provided in FIG. 4 a;

FIG. 5 is a schematic bottom view of the chest compression device of the present invention with the strap removed;

FIG. 6 is a schematic view of the configuration of the chest compression device of the present invention when not compressed on the chest cavity;

fig. 7 is a schematic view of the chest compression device of the present invention compressing the chest cavity to a maximum depth.

FIG. 8 is a schematic illustration of the strap path of the present invention;

FIG. 9 is another schematic of the belt path of the present invention;

FIG. 10 is a circuit diagram of a driver chip of the present invention;

FIG. 11 is a diagram of a voltage regulator circuit according to the present invention;

FIG. 12 is a filter circuit diagram of the present invention;

FIG. 13 is a switch circuit diagram of the present invention;

FIG. 14 is a circuit diagram of the LED indicator light of the present invention;

FIG. 15 is a circuit diagram of the start-up of the drive apparatus of the present invention;

fig. 16 is a circuit diagram of a pulse modulation circuit provided by the present invention.

The reference numerals are represented as:

1-pressing part; 11-a first rotating member; 12-a second rotating member; 13-a first extension arm; 14-a first extension arm; 2-a first swing arm; 21-a first swing link; 22-a first cross-bar; 3-a second swing arm; 31-a second swing link; 32-a second cross bar; 4-band; 41: a first contact surface; 42: a second contact surface; 43: an extension plane; 44: a third contact surface; 45: a first extension surface; 46: a second extension surface; 5-a switch; 6-chest cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, the chest compression device includes a compression part 1 and a belt 4, wherein a first rotation part and a second rotation part are respectively arranged at two sides of the compression part 1; the belt comprises a first end and a second end, the first end of the belt is connected with the first rotating part, and the second end of the belt is connected with the second rotating part; the pressing part 1 is suitable for being placed on the chest cavity of a patient;

specifically, the first rotating portion provided by the invention comprises a first swing arm 2 and a first rotating member 11, the first rotating member 11 is connected with the first swing arm 2, the first rotating member 11 drives the first swing arm 2 to rotate, the second rotating portion comprises a second swing arm 3 and a second rotating member 12, the second rotating member 12 is connected with the second swing arm 3, and an output shaft of the second rotating member 12 is connected with the second swing arm 3; the second rotates piece 12 and drives second swing arm 3 and rotate, the swing end of first swing arm 2 is connected with area 4, the first end of taking 4 is connected with first swing arm 2, the second end of taking 4 is connected with second swing arm 3. The swinging end of the first swinging arm is connected with a belt 4, and the belt 4 is wound out of the back of the patient and then is connected with the swinging end of the second swinging arm 3 so as to fix the pressing part 1 at the position of the chest cavity of the patient; the pressing part 1 provided by the invention comprises a driving device, and the driving device is used for driving the first rotating part 11 and the second rotating part 12 to rotate.

More specifically, the first swing arm 2 provided by the invention comprises a first swing rod 21 and a first cross rod 22; the first swing rod 21 is connected with the first cross rod 22, and the second swing arm 3 comprises a second swing rod 31 and a second cross rod 32; the second swing rod 31 is connected with the second cross rod 32;

the first cross bar 22 is connected with the first rotating member 11 through a first swing link 21, the second cross bar 32 is connected with the second rotating member 12 through a second swing link 31, the first end portion of the belt 4 is connected with the first cross bar 22, and the second end portion of the belt 4 is connected with the second cross bar 32.

The number of the first swing rods 21 is 2, one end of the first rotating part is connected with one of the first swing rods, the other end of the first rotating part is connected with the other first swing rod, and a first cross rod is arranged between the 2 first swing rods; the number of the second swing rods is 2, one end of the second rotating piece is connected with one of the second swing rods, the other end of the second rotating piece is connected with the other 1 second swing rod, and second cross rods are arranged between the 2 second swing rods.

The chest pressing device of the invention adopts the form that the pressing part is pressed integrally to perform cardio-pulmonary resuscitation pressing action, completely abandons the form that the existing cardio-pulmonary resuscitation pressing device adopts a cylinder, a screw rod and the like to push out a pressing head, only depends on the pressing part to press or bounce to perform pressing action when performing pressing action, and converts the swing of the swing arm into the pressing of the pressing part, so that the electric cardio-pulmonary resuscitation machine of the invention has smaller volume and is convenient to carry, and can be connected with a power supply after being tied to the position of the chest of a patient by a belt when in use, no redundant operation steps are needed, and the electric cardio-pulmonary resuscitation machine is more suitable for non-professional medical personnel to use, thereby achieving the purpose of emergency cardio-pulmonary resuscitation.

Referring to fig. 5-7, the working principle of the chest compression device of the present invention is: after the pressing part 1 is placed at the position of the chest cavity 6 of the patient, the belt 4 is wound around the back of the patient and the two ends of the belt are respectively connected with the first swing arm and the second swing arm, and simultaneously, the belt is tightened to lead the pressing part 1 to be tightly attached to the position of the chest cavity 6 of the patient, then the power is switched on, the first rotating part and the second rotating part start to rotate, because the two ends of the belt respectively connect the swinging ends of the first swinging arm and the second swinging arm and the ductility of the belt is extremely small, when the first rotating part and the second rotating part swing towards the center of the thorax of the patient, the belt tightly pulls the swing ends of the first swing arm and the second swing arm, so that the swing ends cannot be normally swung up, under the twisting action of the swing arms, the belt rotates by taking the connecting positions of the belt and the first swing arm and the second swing arm as fulcrums, and the whole pressing part presses the chest cavity 6 downwards under the rotating torsion of the first rotating part and the second rotating part, so that the pressing action of cardio-pulmonary resuscitation is realized; and when first rotation portion and second rotation portion swung to the both sides direction of patient's thorax, then the pressure of pressing the portion to the thorax reduces to zero gradually, and the thorax then upwards resets thereupon and bounces, and then realizes the action that resets of thorax 6.

The first rotating part and the second rotating part provided by the invention rotate synchronously, the rotating directions are opposite, the rotating amplitudes are consistent, the pressing action of the pressing part can be ensured to be stable, the stress of the first swing arm and the second swing arm is uniform, and the pressing quality is improved.

In this embodiment, the first rotating portion and the second rotating portion are driven by the same motor, and the motor may be connected to the first rotating portion and the second rotating portion through a coupling mechanism such as a gear or a lead screw. Of course, in other embodiments, two motors may be used to drive the first and second rotating portions, respectively.

The pressing surface of the pressing part provided by the invention is a plane, and can be in the shape of a cross, an ellipse, a rectangle and the like. Wherein the belt is made of soft or semi-soft material, and can be flat nylon belt, non-woven fabric belt or plastic belt;

the driving device provided by the invention further comprises a power supply, wherein the power supply is a battery, the battery is arranged in the pressing part 1, the battery is connected with the first rotating part and the second rotating part through conducting wires, and the switch 5 is arranged on the front surface of the pressing part 1 so as to be convenient for switching off or on the power supply.

Of course, in other embodiments, a power interface may be further disposed on the body of the pressing portion 1, and the power interface is connected to the mains supply through a power line. Therefore, the power supply of the electric cardiopulmonary resuscitator can be further ensured, and the working safety and the stability of the equipment are further improved.

Specifically, the rotation angle of the first rotation part and the second rotation part provided by the invention is less than or equal to 90 degrees, preferably 45-60 degrees, and the arrangement mode can ensure that the action amplitude of the whole equipment is not too large when the pressing part swings along with the first swing arm and the second swing arm above the chest of the patient and moves up and down, so that the stability and the safety of the equipment are improved.

The path of the tape is as follows: as shown in fig. 1c and 8, the belt 4 includes a first contact surface 41, a second contact surface 42 and an extension surface 43, the extension surface 43 is disposed between the first contact surface 41 and the second contact surface 42, the first contact surface 41 is connected with the first rotating portion, the second contact surface 42 is connected with the second rotating portion, and the extension surface 43 surrounds the thoracic cavity.

Specifically, as shown in fig. 1a and 9, the belt 4 further includes a third contact surface 44, a first extending surface 45 is disposed between the first contact surface and the third contact surface, a second extending surface 46 is disposed between the second contact surface and the third contact surface, the first contact surface 41, the first extending surface 45, the third contact surface 44, the second extending surface 46 and the extending surface are sequentially connected by 43, and the third contact surface 44 is connected with the pressing surface of the pressing portion.

Example 1

Referring to fig. 1a,1b and 5-9, a cardiopulmonary resuscitation device comprises a pressing portion 1 and a belt 4 surrounding the chest, wherein the pressing portion 1 is suitable for being placed on the chest of a patient, a first rotating portion and a second rotating portion are respectively arranged on two sides of the pressing portion 1, a first end portion of the belt 4 is connected with the first rotating portion, a first end portion of the belt 4 is connected with the second rotating portion, and the belt surrounds the periphery of the chest 6.

Specifically, the swinging end of the first swing arm is connected with a belt 4, and the belt 4 is connected with the swinging end of the second swing arm 3 after being wound out from the back of the patient so as to fix the pressing part 1 at the position of the chest of the patient. The first rotating part and the second rotating part are powered on and then rotate in a reciprocating way and drive the pressing part 1 to perform the cardio-pulmonary resuscitation pressing action at the position of the chest of the patient.

Press the splenium including drive arrangement and power, drive arrangement is used for driving first swing arm and the swing of second swing arm, drives the area shrink or relax, this embodiment the power is the battery, the battery sets up press the inside of splenium 1, the battery with first rotation portion with the second rotation portion passes through the wire and connects, and its switch 5 sets up press the front of splenium 1 to be convenient for break off or switch on power.

Specifically, after the pressing part 1 is powered on, the driving device drives the first swing arm and the second swing arm to swing synchronously, and when the first swing arm and the second swing arm swing upwards, the belt is contracted, the belt circumference around the thoracic cavity is shortened, the cross section of the thoracic cavity of a patient is driven to be reduced, positive pressure in the thoracic cavity is generated, and three-dimensional extrusion contraction is formed on the heart; when the first swing arm and the second swing arm swing downwards to return to the original position, the belt surrounding the thoracic cavity is driven to actively return to the initial circumference, the cross section of the thoracic cavity of the patient is driven to restore the original size, negative pressure is formed in the thoracic cavity, the heart is dilated under the action of the negative pressure, the negative pressure of the heart inner cavity is increased, and blood flows back to the heart; wherein, the driving device in this embodiment is a motor.

Specifically, the first swing arm 2 provided by this embodiment includes a first swing link 21 and a first cross bar 22; the first swing rod is connected with the first cross rod, and the second swing arm 3 comprises a second swing rod 31 and a second cross rod 32; the second swing rod is connected with the second cross rod;

The number of the first swing rods is 2, one end of the first rotating part is connected with one of the first swing rods, the other end of the first rotating part is connected with the other first swing rod, and a first cross rod is arranged between the 2 first swing rods; the number of the second swing rods is 2, one end of the second rotating piece is connected with one of the second swing rods, the other end of the second rotating piece is connected with the other 1 second swing rod, and second cross rods are arranged between the 2 second swing rods.

Referring to fig. 1a, the pressing portion of this embodiment includes a pressing surface, the pressing surface is a plane, the pressing portion has a cross-shaped structure, the pressing portion includes a first extension arm and a second extension arm, and the first rotating portion and the second rotating portion are respectively disposed in the first extension arm and the second extension arm of the pressing portion. Adopt this kind of structural style, the normal swing of first swing arm and second swing arm can be guaranteed on the one hand, avoids appearing the phenomenon that the mechanism motion is interfered, and on the other hand then is favorable to further suitably increasing the area of pressing according to the portion, improves the effect of pressing to the thorax, reduces the injury of pressing to patient's thorax.

The first rotating part is located inside the first extension arm, the 2 first swing rods are symmetrically arranged on two sides of the first extension arm respectively, the second rotating part is located inside the second extension arm, and the 2 second swing rods are symmetrically arranged on two sides of the second extension arm.

The first swing arm comprises a first swing rod and a first cross rod; the first swing rod is connected with the first cross rod, and the second swing arm comprises a second swing rod and a second cross rod; the second swing rod is connected with the second cross rod; the first cross rod is connected with the first rotating piece through a first swing rod, the second cross rod is connected with the second rotating piece through a second swing rod, the first end portion of the belt is connected with the first cross rod, and the second end portion of the belt is connected with the second cross rod.

In this embodiment, first rotation portion with the synchronous rotation of second rotation portion, and turn to opposite, rotation amplitude is unanimous to guarantee to press the splenium to press and move can be steady, and the atress of first swing arm and second swing arm is even, improves and presses the quality.

Referring to fig. 1a, in the present embodiment, the first swing arm 2 and the right swing arm 3 are both in a "]" -shaped structure, and

swing rods

21 and 31 at two ends of the first swing arm 2 and the second swing arm 3 are respectively connected to two ends of an output shaft of the first rotating portion 11 and the second rotating portion 12; the ends of the belt 4 are connected with the first cross bar 22 and the second cross bar 32 on the first swing arm 2 and the second swing arm 3.

Referring to fig. 9, the path of the belt in this embodiment is as follows: the belt comprises a first contact surface, a second contact surface and a third contact surface, a first extension surface is arranged between the first contact surface and the third contact surface, a second extension surface is arranged between the second contact surface and the third contact surface, the first extension surface, the third contact surface, the second extension surface and the extension surface are sequentially connected, and the third contact surface is connected with the pressing surface of the pressing part.

Example 2

Referring to fig. 2a,2b and 5-7, the cardiopulmonary resuscitation device comprises a pressing portion 1 and a belt 4 surrounding the thoracic cavity, wherein the pressing portion 1 comprises a pressing surface which is a plane and is suitable for being placed on the thoracic cavity of a patient, a first rotating portion 11 and a second rotating portion 12 are respectively arranged at two sides of the pressing portion 1, a first end portion of the belt 4 is connected with the first rotating portion 11, a first end portion of the belt 4 is connected with the second rotating portion 12, and the bandage 6 surrounds the periphery of the thoracic cavity 6.

The present embodiment 2 differs from embodiment 1 in the shape of the pressing part, the first swing arm, and the second swing arm, wherein the shape of the pressing part in embodiment 2 is rectangular; the 2 first swing rods 21 are respectively symmetrically arranged on two sides of the short side of the rectangular pressing portion, and the 2 second swing rods 31 are respectively symmetrically arranged on two sides of the other short side of the rectangular pressing portion.

Example 3

Referring to fig. 3a,3b and 5-7, the cardiopulmonary resuscitation device comprises a pressing portion 1 and a belt 4 surrounding the thoracic cavity, wherein the pressing portion 1 comprises a pressing surface which is a plane and is suitable for being placed on the thoracic cavity of a patient, a first rotating portion and a second rotating portion are respectively arranged on two sides of the pressing portion 1, a first end portion of the belt 4 is connected with the first rotating portion, a first end portion of the belt 4 is connected with the second rotating portion, and the binding belt 6 surrounds the periphery of the thoracic cavity 6.

The difference between this embodiment 3 and embodiment 1 lies in the shape of the pressing portion, the first swing arm, and the second swing arm, wherein in embodiment 2, the pressing portion 1 is in an elliptical shape, 2 first swing links are respectively symmetrically disposed on two sides of the short axis of the pressing portion, and 2 second swing links are respectively symmetrically disposed on two sides of the other short axis of the pressing portion.

Example 4

Referring to fig. 4a,4b, 5-7, a cardiopulmonary resuscitation device includes a pressing portion 1 and a belt 4 surrounding a thoracic cavity, wherein the pressing portion 1 includes a pressing surface, the pressing surface is a flat surface, the pressing surface is suitable for being placed on the thoracic cavity of a patient, a first rotating portion 11 and a second rotating portion 12 are respectively disposed on two sides of the pressing portion 1, a first end portion of the belt 4 is connected to the first rotating portion 11, a first end portion of the belt 4 is connected to the second rotating portion 12, and the belt 6 surrounds the periphery of the thoracic cavity 6.

The present embodiment 4 differs from embodiment 1 in the shape of the pressing part, the first swing arm and the second swing arm, wherein the shape of the pressing part in embodiment 5 is shown in fig. 4a-4 b. The pressing portion comprises a first portion and a second portion, the first portion is a convex portion, the first portion is located in the middle of the second portion, the 2 first swing rods are located on two sides of a short edge of the second portion respectively, the 2 second swing rods are located on two sides of the other short edge of the second portion respectively, and the two sides of the convex portion are provided with 1 first swing rod and 1 second swing rod respectively.

As shown in fig. 10-16, in particular, the present invention provides a cardiopulmonary resuscitation device, which includes a pressing portion and a belt surrounding a thoracic cavity, wherein the pressing portion includes a controller and a driving device, the pressing portion, a first rotating portion and a second rotating portion are provided, an output shaft of the first rotating portion is provided with a first swing arm, an output shaft of the second rotating portion is provided with a second swing arm, the controller outputs a control signal to drive and receive the control signal, the driving device drives the first rotating portion and the second rotating portion to rotate according to the control signal, so as to drive the first swing arm and the second swing arm to swing synchronously, and when the first swing arm and the second swing arm swing upwards, the belt is contracted, so that a circumference of the belt surrounding the thoracic cavity is shortened, a cross section of the thoracic cavity of a patient is reduced, a positive pressure in the thoracic cavity is generated, and a; when the first swing arm and the second swing arm swing downwards to return to the original position, the driving belt surrounding the chest cavity is driven to actively return to the initial circumference, the cross section of the chest cavity of a patient is driven to restore the original size, negative pressure is formed in the chest cavity, the heart is relaxed under the action of the negative pressure, the negative pressure of the heart inner cavity is increased, and blood flows back to the heart.

Specifically, the controller may be a driving chip, the driving chip includes a pin 3, a pin 13, a pin 15, a pin 16, and a pin 17, the pin 3 is respectively connected with C9, C10, and R10, C9, C10, and R10 are connected in parallel and then connected with R6, R6 is connected with a power supply, the pin 13 is connected with a capacitor C5, C6, and C5 is connected with C6 in parallel; pin 15 is connected to pin 3 of the ISP for receiving data, and pin 16 is connected to pin 2 of the ISP; the 17 pin is connected with R9, R9 is respectively connected with C7 and R11, C7 and R11 are connected with S1 after being connected in parallel, and S1 is connected with R5.

Specifically, the driving chip further comprises 22 pins connected with R1 and R2, respectively, R2 is connected with pin 1 of J3, pin 2 of J3 is connected with a power supply, pin 3 of J3 is grounded, R1 is connected with pin 1 of J1, pin 2 and pin 3 of J2 are both connected with D3, and D3 is grounded.

Specifically, the driving chip further comprises a pin 21 and a pin 20, wherein the pin 21 is connected with one end of the R8, the other end of the R8 is connected with the D5, and the D5 is grounded; the 20 pins are connected with one end of R7, the other end of R7 is connected with D4, and D4 is grounded.

Specifically, the driving chip further comprises a pin 23, the pin 23 is connected with one end of the R13, the other end of the R13 is connected with the R14, the R14 is grounded, the other end of the R13 is connected with the Q3, the Q3 is respectively connected with the R15 and the R12, the R12 is connected with the power supply, and the R15 is connected with the Q1.

Those of ordinary skill in the art will understand that: the invention is not to be considered as limited to the specific embodiments thereof, but is to be understood as being modified in all respects, all changes and equivalents that come within the spirit and scope of the invention.

Claims

1. A chest pressing device, characterized in that it comprises a pressing portion and a belt, a first rotating portion and a second rotating portion are respectively provided on both sides of the pressing portion, and the first end of the belt is connected to the first rotating portion. connected, the second end of the belt is connected with the second rotating part.

2 . The chest pressing device according to claim 1 , wherein the pressing part comprises a driving device, and the driving device is used for driving the first rotating part and the second rotating part to rotate. 3 .

3 . The chest compression device according to claim 1 , wherein the first rotating part comprises a first swing arm and a first rotating member, the first rotating member is connected to the first swing arm, and the first rotating member is connected to the first swing arm. 4 . The second rotating part drives the first swing arm to rotate, the second rotating part includes a second swing arm and a second rotating part, the second rotating part is connected with the second swing arm, and the second rotating part drives the second swing arm to rotate, so The first end of the strap is connected to the first swing arm, and the second end of the strap is connected to the second swing arm.

4. The chest compression device according to claim 3, wherein the first swing arm comprises a first swing bar and a first cross bar, the first swing bar and the first cross bar are connected; the first swing bar is connected to the first cross bar; The second swing arm includes a second swing bar and a second cross bar, the second swing bar and the second cross bar are connected;

The first crossbar is connected to the first rotating member through a first swing rod, the second crossbar is connected to the second rotating member through a second swing rod, and the first end of the belt is connected to the second rotating member. A crossbar is attached to which the second end of the strap is connected.

5 . The chest pressing device according to claim 4 , wherein there are two first swing rods, one end of the first rotating member is connected to one of the first swing rods, and the other end of the first rotating member is connected to the other one. 6 . The first swing rods are connected, and there is a first cross rod between the two first swing rods; the number of the second swing rods is two, one end of the second rotating member is connected with one of the second swing rods, and the other end of the second rotating member is connected to one of the second swing rods. It is connected with another second swing bar, and there is a second cross bar between the two second swing bars.

6. The chest compression device according to claim 1, wherein the strap comprises a first contact surface, a second contact surface and an extension surface, and an extension surface is disposed between the first contact surface and the second contact surface , the first contact surface is connected with the first rotating part, and the second contact surface is connected with the second rotating part.

7. The chest compression device according to claim 6, wherein the belt further comprises a third contact surface, a first extension surface is provided between the first contact surface and the third contact surface, and the first contact surface is provided with a first extension surface. A second extension surface is provided between the second contact surface and the third contact surface, the first contact surface, the first extension surface, the third contact surface, the second extension surface and the extension surface are connected in sequence, and the third contact surface Connect to the pressing surface of the pressing part.

8 . The chest pressing device according to claim 1 , wherein the rotation angle of the first rotating part and the second rotating part is less than or equal to 90°. 9 .

9. The chest compression device of claim 3, wherein the driving device comprises at least one motor.

10 . The chest compression device according to claim 9 , wherein the first rotating part and the second rotating part are driven by the same motor or driven to rotate by two motors respectively. 11 .