CN215081971U

CN215081971U - Chest compression device

Info

Publication number: CN215081971U
Application number: CN202120783758.2U
Authority: CN
Inventors: 孔伟方; 章军辉; 陈贝利; 孟凡奎; 刘立嫱
Original assignee: Sunlife Science (suzhou) Inc
Current assignee: Sunlife Science (suzhou) Inc
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-12-10
Anticipated expiration: 2031-04-16

Abstract

The utility model relates to a chest compression device, including pressing splenium and area, press splenium both sides to be provided with first rotation portion and second rotation portion respectively, the first end and the first rotation portion of area are connected, the second tip and the second rotation portion of area are connected, and it adopts to press the whole form of pressing the splenium and press the action of carrying out the chest, has given up the form that current presser adopted ejecting pressers such as cylinder, lead screw completely, the utility model discloses change the swing of rotation portion into pressing the pressure of splenium, the mode is simple, portable.

Description

Chest compression device

Technical Field

The utility model relates to a chest compression device technical field especially relates 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 base plate. 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.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the above-mentioned not enough of current portable cardiopulmonary resuscitation press device existence, and then provide a brand-new chest press device, also can be cardiopulmonary resuscitation device.

Specifically, the utility model provides a chest compression device, include and press splenium and encircle the area of thorax, press splenium both sides to be provided with first rotation portion and second rotation portion respectively, the first end and the first rotation portion in area are connected, the first end and the second rotation portion in area are connected, the thorax periphery is encircleed in the area.

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.

On the other hand, the utility model provides 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 at the two sides of the pressing part,

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 another aspect, the present invention provides a chest compression method, 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 utility model provides a press the degree of depth of pressing according to the splenium is decided by the pulse width of singlechip output (pulse width is when 500 microseconds, first rotation portion and second rotation portion turned angle correspond-90, when 1000 microseconds, first rotation portion and second rotation portion turned angle correspond-45, when 1500 microseconds, first rotation portion and second rotation portion turned angle correspond 0 °).

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 utility model discloses produced beneficial effect is:

the utility model discloses a chest press device creatively adopts to press the whole form of pressing down of splenium to carry out cardiopulmonary resuscitation and presses down the action, has abandoned the form that current cardiopulmonary resuscitation press device adopted cylinder, ejecting pressing head such as lead screw completely, only relies on pressing down of splenium or bounce to press down the action when pressing down the action, converts the swing of swing arm into pressing down the pressure of splenium, consequently the utility model discloses an electronic cardiopulmonary resuscitation machine's volume can be designed into littleer, portable, and tie up patient thorax position during the use through the area after the switch-on can, need not unnecessary operating procedure, be suitable for non-professional medical personnel's use more to reach the emergent cardiopulmonary resuscitation rescue purpose in public place.

Drawings

In order that the present invention may be more readily and clearly understood, reference is now made to the following detailed description of the invention 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 belt removed;

FIG. 6 is a schematic view of the chest compression device of the present invention shown in a non-compressed state on the chest cavity;

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

Fig. 8 is a schematic diagram of the strap path of the present invention;

fig. 9 is a schematic view of another belt path of the present invention;

fig. 10 is a circuit diagram of the driving 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 switching circuit diagram of the present invention;

fig. 14 is a circuit diagram of the LED indicator lamp of the present invention;

fig. 15 is a starting circuit diagram of the driving device of the present invention;

fig. 16 is a circuit diagram of a pulse modulation circuit according to 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 utility model provides a first rotation portion includes first swing arm 2 and first rotating member 11, and first rotating member 11 is connected with first swing arm 2, and first rotating member 11 drives first swing arm 2 and rotates, the second rotation portion includes second swing arm 3 and second rotating member 12, and second rotating member 12 is connected with second swing arm 3, be connected with second swing arm 3 on the output shaft of second rotating member 12; 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; wherein, the utility model provides a press splenium 1 includes drive arrangement, drive arrangement is used for driving first rotation piece 11 and second rotation piece 12 and rotates.

More specifically, the present invention provides that the first swing arm 2 includes a first swing link 21 and a first cross bar 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 utility model discloses a chest press device adopts and presses the whole form of pressing down of splenium to carry out cardiopulmonary resuscitation and press the action, has abandoned the form that current cardiopulmonary resuscitation press device adopted cylinder, ejecting pressing heads such as lead screw completely, only relies on pressing down of splenium or bounce to press down the action when pressing down the action, converts the swing of swing arm into pressing down the pressure of splenium, consequently the utility model discloses an electronic cardiopulmonary resuscitation machine's volume can design into littleer, portable, and tie up patient thorax position during the use through the area after the switch-on power can, need not unnecessary operating procedure, be suitable for non-professional medical personnel's use more to reach the emergent cardiopulmonary resuscitation purpose in public place.

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.

Wherein, the utility model provides a first rotation portion with second rotation portion rotates in step, and turns to opposite, rotation range is unanimous to guarantee to press the splenium to press and press the action can be steady, and the atress of first swing arm and second swing arm is even, improves and presses the quality.

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.

Wherein, the utility model provides a press the pressing surface of splenium for the plane, it can be for shapes such as cross, ellipse, rectangle. 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 utility model provides a drive arrangement still includes the power, wherein 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 in disconnection or switch-on.

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 utility model provides a first rotation portion with the turned angle less than or equal to 90 degrees of second rotation portion, preferred turned angle are 45-60 degrees, and this kind of mode of setting can guarantee press the splenium when first swing arm and the swing of second swing arm and then up-and-down motion along with of patient's thorax top, the action range of whole equipment is unlikely to too big to improve equipment's stability and security.

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 utility model provides a band 4 still includes third contact surface 44, be provided with first extension face 45 between first contact surface and the third contact surface, be provided with second extension face 46 between second contact surface and the third contact surface, first contact surface 41, first extension face 45, third contact surface 44, second extension face 46 and extension face 43 connect gradually, third contact surface 44 is connected with the press surface of pressing the 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, including a pressing portion and a belt surrounding the thoracic cavity, the pressing portion includes a controller and a driving device, the pressing portion and a first rotating portion and a second rotating portion are provided, a first swing arm is provided on an output shaft of the first rotating portion, a second swing arm is provided on an output shaft of the second rotating portion, 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, when the first swing arm and the second swing arm swing upwards, the belt is contracted, the belt perimeter surrounding the thoracic cavity is shortened, the cross section of a thoracic cavity patient is driven to be reduced, the intrathoracic positive pressure is generated, and the heart is subjected to three-dimensional extrusion contraction; 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 above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The chest compression device is characterized by comprising 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, a first end part of the belt is connected with the first rotating part, and a second end part of the belt is connected with the second rotating part.

2. The chest compression device of claim 1 wherein the pressing portion includes a drive means for driving the first and second rotating portions to rotate.

3. The chest compression device of claim 1 wherein the first rotating portion comprises a first swing arm and a first rotating member, the first rotating member coupled to the first swing arm, the first rotating member driving the first swing arm to rotate, the second rotating portion comprises a second swing arm and a second rotating member, the second rotating member coupled to the second swing arm, the second rotating member driving the second swing arm to rotate, the first end of the strap coupled to the first swing arm, the second end of the strap coupled to the second swing arm.

4. The chest compression device of claim 3 wherein said first swing arm comprises a first swing link and a first cross bar, said first swing link and first cross bar being connected; the second swing arm comprises a second swing rod and a second cross rod, and the second swing rod is connected with the second cross rod;

5. The chest compression device of claim 4 wherein there are 2 first rocker levers, one end of the first rotating member is connected to one of the first rocker levers, the other end of the first rotating member is connected to the other first rocker lever, and there is a first cross bar between the 2 first rocker levers; 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.

6. The chest compression device of claim 1 wherein the strap includes a first contact surface, a second contact surface and an extension surface, the extension surface being disposed between the first contact surface and the second contact surface, the first contact surface being connected to the first rotating portion and the second contact surface being connected to the second rotating portion.

7. The chest compression device of claim 6 wherein the strap further comprises a third contact surface, a first extending surface is disposed between the first contact surface and the third contact surface, a second extending surface is disposed between the second contact surface and the third contact surface, the first extending surface, the third contact surface, the second extending surface and the extending surface are connected in series, and the third contact surface is connected to the compression surface of the compression portion.

8. The chest compression device of claim 1 wherein the angle of rotation of the first rotating portion and the second rotating portion is 90 ° or less.

9. The chest compression device of claim 2 wherein said drive means comprises at least one motor.

10. The chest compression device of claim 9 wherein the first rotating portion and the second rotating portion are driven to rotate by the same motor or by two motors separately.