CN114373372B - Human chest cardio-pulmonary resuscitation simulation method - Google Patents

Abstract

The invention discloses a human thorax cardiopulmonary resuscitation simulation method, which comprises the following steps: anchoring an area as a central area of the cardiopulmonary resuscitation simulation, arranging a moving part which can move along a predetermined moving path after bearing external pressing force and/or squeezing force around the central area, providing the moving part with an elastic force directed away from the central area by using an elastic part providing the elastic force, and in an initial state, making the moving part abut against the stopping end points under the elastic force of the elastic part, and repeatedly applying and releasing the external pressing force and/or squeezing force for each moving part, thereby realizing the cardiopulmonary resuscitation simulation of the human thorax. The invention is designed aiming at the real scene of the cardio-pulmonary resuscitation of the human thorax, can perfectly simulate the outline of the human thorax, can accurately and intuitively simulate the change condition of the human thorax when being pressed and extruded, and can intuitively, reliably and effectively show and simulate the multidirectional cardio-pulmonary resuscitation pressing process of the human thorax.

Description

Human thorax cardiopulmonary resuscitation simulation method

Technical Field

The invention relates to simulation and test of the effect of compression such as cardiopulmonary resuscitation. In particular, the invention relates to a human chest cardiopulmonary resuscitation simulation method.

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. The cardiac arrest is the best time to rescue within 4 minutes, and is often too late when the physician or the rescue personnel are waiting to arrive outside the hospital. The traditional cardiopulmonary resuscitation mainly adopts a manual external chest compression mode (direct heart compression during thoracotomy is rare), but the method easily causes compression fatigue, inconsistent compression force degree, irregular compression rhythm and other characteristics, and particularly when long-time compression is needed, the success rate of rescue of a patient is easily reduced, and meanwhile, the sternum injury of the patient is easily caused due to incorrect operation method. It is urgent to equip electric cardiopulmonary resuscitation equipment in public places, places with large people flow, hospitals and other places requiring emergency treatment means.

The cardiopulmonary resuscitation machine products widely used in the market at present are roughly divided into three types, the first type of products is based on a heart pump theory mechanism and directly presses on the sternum outside the heart to realize the effect of pressing the heart at a single point, so that the heart generates pump blood, the first type of products can be applied to a device for resuscitating a patient disclosed in patent application document US20120238922A1, a plunger driving device with single-point pressing is adopted to press the chest of a human body, and the pressing depth of the plunger driving device must reach 50mm based on the requirement of the pressing effect, so that the chest ribs in the chest of the human body can be easily broken; the second type of products are based on a chest pump theory mechanism and squeeze the whole thorax of a patient to realize the purpose of generating heart pumping blood through the internal squeezing of the thorax, and the application of the second type of products can refer to an automatic chest compression device disclosed in patent application document CN 108430427A. The third type of product is that the theoretical mechanism of heart pump and chest pump have been combined, both contained the pressing that the single point was carried out and had also contained the extrusion to the thorax simultaneously, the application of second type of product can refer to patent application document US7060041B1 chest compression device who opens, the technical characterstic of the device is, existing pressing, the bandage still can produce the extrusion to the thorax when simultaneously pressing, also let the thorax carry out holistic shrink when the thorax is whole to pushing down, the effect of thorax shrink is good (blood flow perfusion is effectual, coronary artery perfusion pressure index), little to the human injury (be equivalent to wrap up the human body, press from the single point to the multiple spot parcel and apply pressure).

In the field of cardiopulmonary resuscitation, three indexes of detecting the good and bad effect of cardiopulmonary resuscitation are Coronary Perfusion Pressure (CPP), arterial diastolic pressure and end-tidal carbon dioxide concentration (ETCO 2), and in the process of realizing the indexes and needing external chest compression, a cardiopulmonary resuscitation machine carries out high-quality cardiopulmonary resuscitation to improve the survival chance of patients. Therefore, how to carry out performance test and performance research on the cardiopulmonary resuscitation machine product is very important; with the development of scientific technology and continuous research in the field of cardiopulmonary resuscitation, cardiopulmonary resuscitation machine products are continuously updated in an iterative manner, test equipment and test methods for testing and researching the cardiopulmonary resuscitation machine products are also continuously updated, the conventional cardiopulmonary resuscitation machine products are various in types and have different cardiopulmonary resuscitation effects, and a reliable mode is required for performing performance test and performance research on the cardiopulmonary resuscitation machine products. Most of the existing testing methods of cardiopulmonary resuscitation machine products only test single-point compression parameters, and diversified tests of cardiopulmonary resuscitation machine products cannot be met; particularly, in the research and test of the third kind of products, the prior art means is difficult to intuitively and effectively obtain the cardio-pulmonary resuscitation effect of the products.

In view of this, a method suitable for various cardiopulmonary resuscitation occasions and various cardiopulmonary resuscitation products, which can be used to simulate the actual situation of the chest of a human body, needs to be redesigned and researched to cooperate with the method for visually and effectively acquiring the test data of the cardiopulmonary resuscitation effect.

Disclosure of Invention

In order to achieve the purpose, the invention provides a human thorax cardiopulmonary resuscitation simulation method.

The invention provides a human chest cardiopulmonary resuscitation simulation method, comprising:

anchoring a region as a central region of a cardiopulmonary resuscitation simulation;

arranging a moving part which can bear external pressing force and/or squeezing force and move along a preset moving path around the central area, wherein the preset moving path realizes the change simulation of the human thorax through elastic action and guide support; in an initial state, all the moving parts are distributed on the positions of the annular curved surface or the annular outline in a surrounding way, and each moving part is provided with a stop end point used for limiting the moving range of the moving part at one end of the moving path of the moving part, which is far away from the central area;

providing an elastic action directed away from the central area to the moving part by using the elastic part providing the elastic action, and enabling the moving part to abut against the stopping end point under the elastic action of the elastic part in an initial state;

applying external pressing force and/or extrusion force to the moving parts, enabling the moving parts to approach or separate from the central area along respective moving paths when the moving parts bear the external pressing force and/or extrusion force, and enabling the moving paths of all the moving parts to radially surround the central area;

during the releasing process of the external pressing force and/or the squeezing force, the moving part is forced to be displaced towards a stop end point at one end of the moving path close to the central area by the elastic part until the moving part reaches the stop end point;

in the using state, the external pressing force and/or the squeezing force is repeatedly applied and released for each moving part, so that the simulation of the human thorax cardiopulmonary resuscitation is realized.

The invention is further described below in relation to:

1. through the implementation of the technical scheme, the cardiopulmonary resuscitation simulation method for the human thorax is designed and researched aiming at the real scene of the cardiopulmonary resuscitation of the human thorax, the arrangement of the moving part is adopted to provide the simulation method with the outline which can perfectly simulate the human thorax, the arrangement of the moving path and the arrangement of the limitation of the moving range, the change condition of the human thorax when being pressed and extruded can be accurately and intuitively simulated, the elastic part is used for providing an elastic action pointing to the moving part and away from the central area, and the elastic part is also used for simulating the elasticity of human tissues when the human thorax is pressed and extruded, and the action force of expanding the human thorax when the human thorax is pressed and extruded and the simulation with the expansion range; the simulation method of the invention can intuitively, reliably and effectively display and simulate the process of multidirectional cardiopulmonary resuscitation pressing of the human thorax, can intuitively reflect the contraction conditions of the human thorax, such as the total contraction amplitude of the thorax and the contraction amplitudes of different positions of the thorax, and can also obtain the information of displacement, acceleration, stress and the like of a plurality of structures by a test means through directly observing the moving part so as to form more effective and reliable test parameters.

2. In the above technical solution, the vertical direction of the chest contour when the human body lies on the back is defined as the up-down direction, and the direction from head to foot when the human body lies on the back is defined as the front-back direction.

3. In the above technical solution, in an initial state, all the moving parts are distributed around an annular curved surface or an annular contour, wherein:

when the moving parts are distributed around the annular curved surface, the annular curved surface is elliptic cylinder, cylindrical or the shape simulating the outline of the human thorax;

when the moving parts are distributed around the annular outline, the annular outline is an ellipse, a circle or an outline shape simulating the section of the human thorax;

the moving part arrangement mode in the simulation method enables the model application in the simulation process to be more fit with the appearance simulation and the elastic simulation of the human body structure.

4. In the technical scheme, in the process of repeatedly applying and releasing the external pressing force and/or the extrusion force, the data change information of the moving part and/or the elastic part is collected and observed; the data change information at least comprises one or more of the following data: displacement data of the moving part, force data of the moving part, relative displacement data between the moving part and the guide support part, force data of the elastic part, and continuous/interval image information of the moving part; the data change information may be acquired using a range sensor, motion sensor, force sensor, or visual acquisition mechanism, which may be an industrial camera, or the like.

5. In the above-described technical solution, when the moving portions receive the external pressing force or the pressing force and move closer to or farther from the central area along the respective moving paths, the moving portions have different moving distances according to a difference in the received external pressing force or a difference in the elastic force of the elastic portion.

6. In the above solution, the moving path is a path diverging from the central area toward the end point, and the shape of the path is at least one of the following or a combination of at least two of the following: the moving path can be determined by the structure of a guide support part, the guide support part providing the guide support is used for guiding and supporting the moving part along the moving path, the guide support part is a rigid member which can enable the moving part to be slidably coupled with the shape of the moving path, and the guide support part is positioned at the inner side or the outer side of the central area.

7. In the above technical solution, at least one adjacent two of the moving portions are hinged by a shaft, and the moving portions hinged by the shaft are connected in a sliding manner, so that at least one of the moving portions hinged by the shaft has a moving degree of freedom in a direction perpendicular to a moving path of the moving block approaching or departing from the central area; in another mode, at least one adjacent two moving parts are flexibly connected through a soft material; therefore, the situation of the side of the human chest cavity is simulated more truly.

8. In the above technical solution, in the process of using the elastic parts, the elastic coefficients of all the elastic parts can be matched, and it can be estimated at what position the pressing machine receives a large pressing force when acting on the human body; the elastic coefficients of the elastic parts can be set to be different, so that the elastic coefficient of each elastic part corresponds to the human body at different parts; the elastic coefficient of the elastic part at the front part can be larger than that of the elastic part at the rear part, so that the practical situation that the ribs at the front part are lower than the ribs at the rear part when the human body lies on the back can be simulated.

The present invention provides several advantages over the prior art, including:

1. in some embodiments, a human thorax cardiopulmonary resuscitation simulation method is designed and researched aiming at a real scene of human thorax cardiopulmonary resuscitation, the arrangement of a moving part is used for providing a contour capable of perfectly simulating the human thorax for a simulation process, the setting of a moving path and the setting of movement range limitation can accurately and intuitively simulate the change condition of the human thorax when being pressed and extruded, an elastic part is used for providing an elastic action pointing to a far-away central area for the moving part, and the elastic part is also used for simulating the elasticity of human tissues when the human thorax is pressed and extruded and is contracted downwards and inwards, and the action force of the expansion of the human thorax when the pressing and extruding are released and the simulation with an expansion range; the simulation method of the invention can intuitively, reliably and effectively show and simulate the multidirectional cardio-pulmonary resuscitation pressing process of the human thorax.

2. In some embodiments, by implementing the simulation method in the technical solution of the present invention, the contraction condition of the human thorax, such as the total contraction amplitude of the thorax and the contraction amplitudes of different positions of the thorax, can be intuitively reflected by directly observing the moving part, so as to intuitively and reliably display the most intuitive contraction condition of the simulated human thorax when being subjected to pressing force or squeezing force.

3. The test method in the prior art is based on single-point compression, and the technical scheme of the invention considers that the chest cavity of a human body can be compressed in multiple directions by adopting a mode of adding a bandage on a pressing machine, so that the simulation effect of the chest cavity of the human body when the chest cavity is pressed/extruded by multiple points is simulated to the maximum extent, and the method is stable and reliable and is suitable for various cardio-pulmonary resuscitation scenes of the chest cavity of the human body.

Drawings

Fig. 1A to 1C are respective views according to a first embodiment of the present invention;

fig. 2A to 2C are respective views of a second embodiment according to the present invention;

fig. 3A to 3D are respective views according to a third embodiment of the present invention;

fig. 4A to 4C are respective views according to a fourth embodiment of the present invention;

FIG. 5A is a view of a fifth embodiment according to the present invention;

FIG. 6A is a view according to a sixth embodiment of the present invention;

fig. 7A is a view according to a seventh embodiment of the present invention;

fig. 8A is a view according to an eighth embodiment of the present invention;

FIG. 9A is a view of a ninth embodiment according to the present invention;

fig. 10A is a view according to a tenth embodiment of the present invention;

fig. 11A is a view according to an eleventh embodiment of the present invention;

fig. 12A is a view according to a twelfth embodiment of the present invention.

The components in the figure are as follows:

101. central region

1. Moving part

11. Metal sheet

12. Contact surface

13. Observed surface

11. Connecting body

12. Adaptive body

13. Extension block

14. Shaft hinge joint

15. Flexible connection

2. Elastic part

3. Guide support part

31. Center block

312. Mounting hole

3122. Movable space

3123. Connecting rotating shaft

32. Guide post

33. Inner frame

34. Outer frame

35. Connecting block

36. Slideway block

361. Slide way

362. Reset spring

37. Turning block

4. Data acquisition part

5. Limiting structure

51. Linear bearing

52. Fixing nut

6. Cardio-pulmonary resuscitation machine

61. Press aircraft nose

62. A bandage.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the embodiments disclosed below.

The invention aims to design and research a human chest cardio-pulmonary resuscitation simulation method aiming at a real scene of human chest cardio-pulmonary resuscitation, in the simulation method, the contraction conditions of the human chest, including the total contraction amplitude of the chest, the contraction amplitudes of different positions of the chest and other parameters in the human cardio-pulmonary resuscitation process, can be intuitively reflected by observing and detecting the change of parameters such as the displacement of an action part in a simulator, and therefore, the contraction conditions of various presses with bandages on the market can be tested.

An important feature of the present invention is its ability to simulate parameters such as the amplitude of contraction at different locations in the human thorax. In essence, the method mentioned provides effective pressure on the moving part by the bandage and the pressure head, so that a better, more realistic contraction situation is obtained, while an equilibrium position can be found for the application of the method to achieve a better contact. This is particularly advantageous when considering the variability of the shape of human thoracic tissue and the need for better engagement for more effective, accurate testing. Meanwhile, the vertical direction of the outline of the chest cavity is defined as the up-and-down direction when the human body is supine, and the direction from head to feet is defined as the front-and-back direction when the human body is supine.

The invention relates to a human chest cardiopulmonary resuscitation simulation method, which is used for simulation and test of a cardiopulmonary resuscitation machine or a simulated human when external pressing force and extrusion force are applied, in particular to observation and detection of the using effect of the cardiopulmonary resuscitation machine, and comprises the following steps:

anchoring a region as a central region of a cardiopulmonary resuscitation simulation;

arranging a moving part which can bear external pressing force and/or squeezing force and move along a preset moving path around the central area, wherein the preset moving path realizes the change simulation of the human thorax through elastic action and guide support; in an initial state, all the moving parts are distributed on the positions of the annular curved surface or the annular outline in a surrounding way, and each moving part is provided with a stop end point used for limiting the moving range of the moving part at one end of the moving path far away from the central area;

providing an elastic action directed away from the central area to the moving part by using the elastic part providing the elastic action, and enabling the moving part to abut against the stop end point under the elastic action of the elastic part in an initial state;

applying external pressing force and/or extrusion force to the moving parts, enabling the moving parts to approach or separate from the central area along respective moving paths when the moving parts bear the external pressing force and/or extrusion force, and enabling the moving paths of all the moving parts to radially surround the central area;

during the releasing process of the external pressing force and/or the squeezing force, the moving part is forced to be displaced towards a stop end point at one end of the moving path close to the central area by the elastic part until the moving part reaches the stop end point;

under the using state, the external pressing force and/or the squeezing force is repeatedly applied and released for each moving part, so that the human thorax cardiopulmonary resuscitation simulation is realized.

In the above method of the present invention, the external pressing force or squeezing force may be generated by a pressing head 61 and a bandage 62 in a cardiopulmonary resuscitation machine 6, for example, the arrangement includes at least one moving part 1 located at the top and at least two moving parts 1 located at two sides below the top, the pressing head 61 in the cardiopulmonary resuscitation machine 6 is installed at the moving part located at the top, the bandage 62 is wrapped on the moving parts located at two sides or the rest, when the pressing head 61 applies the pressing force, the pressing head 61 drives the bandage 62 to apply a certain pressing force and squeezing force to the moving part, or may be generated by the pressing force or squeezing force received by a dummy when receiving the cardiopulmonary resuscitation, the central area 101 may be regarded as a main part for simulating the actual squeezing action in the human thorax or an area simulating the central part of the human thorax, and the central area 101 is located approximately at the inner center of the moving part; the stop end point is a limit point for limiting the moving range of the moving part 1, and the stop end point can be regarded as a natural relaxed state when the human tissue is not subjected to the pressing operation of cardiopulmonary resuscitation, the human thorax is naturally supported and unfolded, and the stop end point can be limited by the limit structure 5.

In embodiments of the invention, for the application of the method, there are an initial state and a use state, and the following is described in connection with two states in which the method is actually applied:

initial state

In the initial state, no external pressing force and/or squeezing force is applied to the moving part 1, the moving part 1 is pressed against or pulled to the stop end point by the elastic part 2 under the action of the elastic part 2, and the moving part 1 is restrained by the elastic part 2 and the stop end point and is located at a position far away from the central region 101 and at the farthest point.

State of use

Under the using state, external pressing force and/or squeezing force is repeatedly applied and released for each moving part, so that the simulation of human chest cardiopulmonary resuscitation is realized; for example, the simulator may be sleeved on a cardiopulmonary resuscitation machine or a human simulator, when an external pressing force and/or squeezing force is applied to the simulator from the outside, each moving part 1 approaches the central region 101 along the moving path under the combined action of the pressing force and/or squeezing force and the elastic force of the elastic part 2, and at this time, the moving part 1 is in a contracted state and is located at a position near the proximal end of the central region 101; during the application and release of the pressing and/or squeezing force, the simulator has a transition from the contracted state to the initial state, in which the mobile part 1 assumes an intermediate position at the end point of the cut-off and in a tendency to move closer to or further away from the central region 101.

When the simulator is in an initial state, all the moving parts 1 are distributed around the annular curved surface or the annular outline. When the moving part 1 is distributed around the annular curved surface, the annular curved surface is in an elliptic cylinder shape, a cylinder shape or a shape simulating the outline of the human thorax, and when the annular curved surface is in an elliptic cylinder shape, the elliptic cylinder-shaped annular curved surface is divided into infinite elliptic cross sections along one axial direction, and infinite ellipses form a continuous and smooth annular curved surface along the axial direction; the cylindrical annular curved surface is divided into infinite circular sections along an axial direction, and the infinite circles form a continuous and smooth annular curved surface along the axial direction; the simulation of the outline shape of the human thorax means that the movable part 1 is arranged into a curved surface shape similar to the outline structure of the human thorax according to the shape of the human thorax; when the moving part 1 is distributed around the annular outline, the annular outline is an ellipse, a circle or an outline shape simulating the section of the human thorax.

In the above method of the present invention, the moving part 1 is a structure for generating movement after receiving an external pressing force or squeezing force, and a plurality of moving parts 1 are arranged around the central region 101; when each moving part 1 is subjected to external pressing force or extrusion force, each moving part can approach or separate from the central area 101 along the respective moving path, and the moving paths of all the moving parts 1 radially surround the central area 101; each moving part 1 is provided with a cut-off end point for limiting the moving range of the moving part 1 at one end of the moving path far away from the central area 101; the elastic part 2 is a structure for providing the moving part 1 with an elastic force directed away from the central area 101; the elastic part 2 elastically acts on the moving part 1, and in an initial state, the moving part 1 abuts against a stop end point under the action of the elastic force of the elastic part 2.

Taking the application of the simulation method to the moving part 1, the elastic part 2, the guiding and supporting part 3 and the set of data collecting part 4 as an example, in order to apply the moving part 1 and the elastic part 2 to the simulation method for cardiopulmonary resuscitation of the chest of the human body, the various embodiments of the present invention include:

1. a cardiopulmonary resuscitation simulation method which is provided with a plurality of moving parts 1, elastic parts 2, guide supporting parts 3 and a set of data acquisition parts 4 (without force sensors);

2. a cardiopulmonary resuscitation simulation method which is provided with a plurality of moving parts 1, elastic parts 2, guiding and supporting parts 3 and a set of data acquisition parts 4 and can change characteristics in a self-adaptive manner is applied;

3. the cardiopulmonary resuscitation simulation method is applied, wherein the cardiopulmonary resuscitation simulation method is provided with a plurality of moving parts 1, elastic parts 2, guide supporting parts 3 and a set of data acquisition parts 4, has the characteristic of self-adaptive change and is beneficial to better simulating human thoracic tissues;

4. the cardiopulmonary resuscitation simulation method is applied to a cardiopulmonary resuscitation simulation method which is provided with a plurality of moving parts 1, elastic parts 2, guide supporting parts 3 and a set of data acquisition parts 4, wherein the guide supporting parts are positioned at the center, and the cardiopulmonary resuscitation simulation method comprises the characteristics of self-adaptive change, better simulation of human thoracic tissues and prevention of mutual interference when the moving parts 1 contract;

5. a cardiopulmonary resuscitation simulation method which is provided with a plurality of moving parts 1, elastic parts 2, guide supporting parts 3 and a set of data acquisition parts 4, wherein the guide supporting parts are positioned at the center, and part of the guide and moving parts 1 have the characteristic of rotational freedom in the direction vertical to the guide;

6. a cardiopulmonary resuscitation simulation method which is provided with a plurality of moving parts 1, elastic parts 2, a guide support part 3 and a set of data acquisition parts 4 and is positioned on an outer frame 34 in a guide support way;

7. and other various embodiments that may exist.

First embodiment

In view of certain embodiments of the present invention, a first embodiment is shown in fig. 1A to 1C.

Here, as shown in fig. 1A to 1C, there is provided a first embodiment in which the human thorax cardiopulmonary resuscitation simulation method is applied to a moving part 1, an elastic part 2, and a guide support part 3 that surround in accordance with the contour of the human thorax. The guide support 3 comprises a central block 31 located in the central area 101 and a guide post 32 positioned and mounted on the central block 31 and extending towards the moving part 1;

the moving part 1 is used for being tightly attached to a bandage or a pressing head of a cardio-pulmonary resuscitation machine and used for simulating the chest of a human body, and the method for simulating the cardio-pulmonary resuscitation of the chest of the human body is at least applied to one moving part 1 positioned at the top and at least two moving parts 1 positioned at two sides below the top. The mobile part 1 is arranged to surround a contour of a human thorax or a central region 101, an inner position of the contour is defined as the central region 101, and the mobile part 1 is contracted toward inside the central region 101. Each of the moving parts 1 has a stop end point for limiting the moving range of the moving part 1 at one end of the moving path far away from the central region 101, and the stop end point is a limiting mechanism arranged at the top of the guide column 32, and the limiting mechanism limits the range of the moving part 1 moving outwards. The limiting mechanism is applied to a linear bearing 51 which is sleeved on the guide post 32 and can slide along the guide post 32 and a fixing nut 52 which is sleeved on the top of the guide post 32 and fixed, the moving part 1 is assembled on the linear bearing 51, the linear bearing 51 is provided with a limiting part which is used for keeping the moving part 1 away from the central area 101, and the fixing nut 52 is provided with a limiting surface which is in limiting fit with the limiting part, but the invention is not limited to the limiting mechanism, the limiting direction can be the axial direction of the guide post 32, and meanwhile, other structures which can realize the movement limiting of the moving part 1 are equivalent replacements of the limiting structure 5.

The elastic part 2 applied in the present simulation method is configured to provide at least an elastic displacement of the mobile part 1 when changing between the contracted state and the initial state, in which case the elastic part 2 can also be used to measure the force situation.

The guide support 3 applied in the present simulation method is used to provide a guiding and supporting function for the moving part 1 during contraction, which is directed towards the inside of the central area 101, and during expansion, which is directed towards the outside of the central area 101.

The data acquisition part 4 applied in the simulation method is arranged on at least one corresponding position of the moving part 1, the elastic part 2 and the guide support part 3, and the data acquisition part 4 is configured to acquire data information of the moving part 1 when moving along a moving path. The data acquisition part 4 comprises one or more of a distance measurement sensor, a motion sensor and a force sensor; the data information acquired by the data acquisition part 4 at least comprises one or more of the following data: displacement data of the moving part 1, force data of the moving part 1, relative displacement data between the moving part 1 and the guide support part 3, and force data of the elastic part 2. The data acquisition unit 4 may be mounted on the moving unit 1, or may be mounted on the elastic unit 2 or the guide support unit 3. In the application of the simulation method, the contraction condition of the human chest, such as the total contraction amplitude of the chest and the contraction amplitudes of different positions of the chest, can be reflected intuitively through direct observation of the moving part, so that the most intuitive contraction condition of the human chest under the action of pressing force or extrusion force can be displayed intuitively and reliably, the contraction condition of the simulator during the resuscitation of the heart and the lung of the human chest can be simulated by collecting various data, and the data processing is facilitated for further research.

It should be noted that the number of the moving parts 1 in the simulation method is plural, and in the first embodiment, the moving parts 1 are symmetrically distributed (or in an elliptic cylinder shape) around the contour of the human thorax, the number of the moving parts 1 is 6, and the moving parts 1 are respectively located at the upper, lower, upper left, lower left, upper right, and lower right positions, the 6 moving parts 1 are located around the periphery of the contour of the human thorax formed by the central region 101, and the moving parts 1 have the contact surface 12 facing the outside of the central region 101, and the contact surface 12 is used for being attached to the pressing action part of the cardiopulmonary resuscitator. Specifically, the moving part 1 is a metal sheet 11, a contact surface 12 for contacting with the cardiopulmonary resuscitation machine is disposed on the outer side of the metal sheet 11, the contact surfaces 12 of the metal sheets 11 located at the upper and lower positions are flat surfaces, and the contact surfaces 12 of the metal sheets 11 located at the upper left, lower left, upper right and lower right positions are arc surfaces. The moving part 1 may be made of various materials such as metal, plastic, and polymer material as a member simulating the contour of a human body.

In the present simulation method, for the arrangement of the elastic parts 2 and the guide support parts 3, the elastic parts 2 are arranged to act on each moving part 1 individually, or a plurality of elastic parts 2 may act on one moving part 1, and the guide support parts 3 are arranged to act on the guide of the moving parts 1 individually and are arranged to support all the elastic parts 2. The spring upper position is the elastic part 2, the elastic part 2 can be applied to other elastic part 2 components besides the spring, and can be an elastic sheet, an airbag spring, a plate spring, a tension spring and the like, and the adopted spring can be a cylindrical spiral spring, a conical spiral spring, a wave spring and the like.

In the simulation method, under the action of the elastic part 2, the movable parts 1 are influenced by the elastic part 2 in the state that the external cardiopulmonary resuscitation machine is not operated, the plurality of movable parts 1 are unfolded to be in an initial state, and the movable parts 1 are attached to the installation of the cardiopulmonary resuscitation machine in a manner of being in close contact with the contact surface 12 of the bandage (in one cardiopulmonary resuscitation machine, the contact position is applied to the pressing head of the cardiopulmonary resuscitation machine and the bandage linked with the pressing head).

Second embodiment

Fig. 2A to 2C show a further method of simulating cardiopulmonary resuscitation of the chest of a human being, in accordance with an embodiment of the present invention, as a second embodiment. The second embodiment is substantially similar to the first embodiment in other application manners and steps, except that in the second embodiment, the member for applying external pressing force and the contact surface 12 are adaptive to various shape changes of the contacted part, at least one of the moving parts 1 can move along the tangential direction of the cross-sectional profile of the annular profile or the annular curved surface, and the moving part 1 can have one degree of freedom of rotation; the moving portions 1 located on both sides below the top portion have a degree of freedom of rotation along the front-rear axis while being displaced in the guide direction of the guide support portion 3.

In the second embodiment, when six moving units 1 are arranged in the present simulation method, four moving units 1, i.e., upper left, upper right, lower left, and lower right, may be provided with rotational degrees of freedom. The moving parts 1 located at two sides below the top part are applied to a connecting body 11 and an adaptive body 12, the connecting body 11 is matched and connected with the guide supporting part 3, the adaptive body 12 can be rotated and positioned and installed on the assembly body, and the connecting body 11 and the adaptive body 12 are provided with axes arranged along the front and back directions of the guide direction displacement of the guide supporting part 3. The purpose of this is to make the mobile part 1 self-adaptive to the bandage, more realistically simulating the deformation of the human body assembly in the human thorax that occurs when it is pressed.

Third embodiment

Fig. 3A to 3D show another simulation method for cardiopulmonary resuscitation of a chest of a human being according to an embodiment of the present invention, as a third embodiment. The third embodiment is substantially similar to the second embodiment in other applications and steps, except that in this third embodiment, at least one of the moving parts 1 is rotatable along a rotation axis perpendicular to its moving path and substantially parallel to the central region 101, specifically, wherein the guide rods on the upper left and right are rotatable with respect to the connection with the central block 31, the guide support part 3 is applied to the central block 31 located at the center of the central region 101 and the guide posts 32 positionally mounted on the central block 31 and extending toward the moving part 1, the central block 31 is provided with a guide mounting surface 311 in a direction toward each moving part 1, mounting holes 312 are opened in a direction perpendicular to the guide mounting surface 311, the mounting holes 312 are used for positionally mounting the guide posts 32, the mounting holes 312 on the upper left and right have movable spaces 3122 for rotation of the guide posts 32, wherein the guide posts 32 on both sides are rotatably positionally connected with the central block 31 (the connecting rotation axis 3123 is provided at the positions where the guide posts 32 protrude into the mounting holes 312), one of which is also for better simulation of a human body's true situation.

Fourth embodiment

Fig. 4A to 4C show a further method of simulating cardiopulmonary resuscitation of a human thorax in accordance with an embodiment of the present invention, as a fourth embodiment. The fourth embodiment is substantially similar to the other application manners and steps of the first embodiment, except that in this fourth embodiment, the hinge 14 is used between at least one adjacent two of the moving parts 1 applied in the simulation method, as shown in fig. 4A, wherein the hinge 14 is used between two moving parts 1 located at the upper right and lower right and between two moving parts 1 located at the upper left and lower left.

In order to avoid mutual interference when the hinged moving parts 1 contract and influence the smoothness of sliding, a certain avoiding space is allowed for the moving parts 1 at the upper left and the upper right; specifically, the number of the moving parts 1 positioned at two sides below the top part is two, the extending block 13 extends from the moving part 1 positioned above the top part, the guide supporting part 3 is applied to the connecting block 35, the slide block 36 and the guide post 32, the connecting block 35 is slidably arranged on the guide post 32, the slide block 36 is rotatably connected with the connecting block 35, the slide is arranged on the slide block 36, the extending block 13 is slidably arranged on the slide of the slide block 36, and the reset spring 362 for resetting is arranged in the slide; the lower moving part 1 and the upper moving part 1 are hinged 14 through a shaft, the guide support part 3 is applied to a rotating block 37 and a guide column 32, the lower moving part 1 is rotatably connected with the rotating block 37, and the rotating block 37 is arranged on the guide column 32 in a sliding mode.

Fifth embodiment

Fig. 5A shows another method for simulating cardiopulmonary resuscitation of the chest of a human being, according to an embodiment of the present invention, as a fifth embodiment. The fifth embodiment is substantially similar to the other application manners and steps of the first embodiment, except that in the fifth embodiment, the flexible connection 15 made of soft material is used between at least one adjacent two of the moving parts 1 applied in the simulation method, as shown in fig. 5A, wherein the flexible connection 15 made of soft material is used between the two moving parts 1 positioned at the upper right and the lower right and between the two moving parts 1 positioned at the upper left and the lower left, so as to simulate the skin tissue of the thoracic cavity of the human body more realistically.

Sixth embodiment

Fig. 6A shows another method of simulating cardiopulmonary resuscitation from a chest of a human being, according to an embodiment of the present invention, as a sixth embodiment. The sixth embodiment is substantially similar to the third embodiment or other application manners and steps of the first embodiment, except that in the sixth embodiment, all the moving parts 1 applied in the simulation method are flexibly connected by a soft material 15, and the moving parts 1 are acted by the soft material to cause the moving parts 1 to be linked.

When the sixth embodiment adopts other application manners and steps which are substantially similar to the third embodiment, the external pressing and squeezing force applying component and the contact surface 12 are adaptive to fit various shape changes of the contacted part, at least one of the moving parts 1 can move along the tangential direction of the cross-sectional profile of the annular profile or the annular curved surface, the moving part 1 can have one degree of freedom of rotation, and at least one of the moving parts 1 can rotate along a rotation axis which is perpendicular to the moving path and is substantially parallel to the central area 101, in particular, the guide rods positioned at the upper left and the upper right can rotate relative to the connection part with the central block 31, and all the moving parts 1 are flexibly connected through the soft material 15.

In the fifth and sixth embodiments, the flexible material may be leather, cloth, elastic or slightly elastic, and is used to simulate the flesh and skin of a human body. Or flexible connections 15 or hinges, a plurality of moving parts 1 or every two adjacent moving parts 1 can be connected, depending on the specific requirements. The effects of the soft connection and the shaft hinge connection and the moving part with the characteristics of rotation and tangential movement are that the movement of the human thorax is simulated more truly, so that the reliability and the accuracy of the cardio-pulmonary resuscitation simulation of the human thorax are further improved.

Seventh embodiment

Fig. 7A shows another method for simulating cardiopulmonary resuscitation of the chest of a human being, according to an embodiment of the present invention, as a seventh embodiment.

In the seventh embodiment, the simulation method is applied to a moving part 1, an elastic part 2, and a guide support part 3, the guide support part 3 is a mechanism for limiting the moving path of the moving part 1, one end of the elastic part 2 acts on the moving part 1, the other end acts on the guide support part 3, the guide support part 3 is applied to an inner frame 33 surrounding the inner side of the moving part 1, a guide post 32 is provided on the periphery of the inner frame 33, the stop end point is provided on the guide post 32, the moving part 1 is set up between the stop end point (the limiting mechanism 5) and the inner frame 33, the elastic part 2 is sleeved on the guide post 32 and abuts against between the moving part 1 and the inner frame 33, the elastic part 2 is a compression spring, and the elastic action direction applied by the moving part 1 is the direction in which the guide post 32 axially faces outward, i.e. the direction away from the central area.

Eighth embodiment

Fig. 8A shows another method for simulating cardiopulmonary resuscitation of the chest of a human being, according to an embodiment of the present invention, as an eighth embodiment.

In this eighth embodiment, the simulation method is applied to a moving part 1, an elastic part 2, and a guiding support part 3, the guiding support part 3 is applied to an outer frame 34 surrounding the moving part 1, the inner wall of the outer frame 34 is provided with a guiding post 32 facing the inside of the central region 101, the guiding post 32 is provided with the stopping end point, the stopping end point (limiting mechanism 5) is set between the moving part 1 and the outer frame 34, the elastic part 2 is sleeved on the guiding post 32, the elastic part 2 is a tension spring, one end of the elastic part 2 is connected with the outer frame 34, the other end is connected with the moving part 1, and the elastic part 2 is a direction in which the elastic action applied by the moving part 1 is an axially outward direction of the guiding post 32, i.e., a direction away from the central region.

Ninth embodiment

Fig. 9A shows another method for simulating cardiopulmonary resuscitation of the chest of a human being, according to an embodiment of the present invention, as a ninth embodiment.

The ninth embodiment is substantially similar to the other application modes and steps of the first embodiment, except that in the ninth embodiment, the moving part 1 to which the simulation method is applied has an observed surface 13 facing forward or backward, and the data acquisition part 4 is a visual acquisition unit, and continuous/interval image information of the observed surface 13 is acquired by the visual acquisition unit, or changes of the simulated human body contour are directly observed by naked eyes.

Tenth embodiment

Fig. 10A shows another method of simulating cardiopulmonary resuscitation from a chest of a human being, according to an embodiment of the present invention, as a tenth embodiment.

The tenth embodiment is substantially similar to the other application and steps of the first embodiment, and the simulation method is applied to the moving part 1, the elastic part 2, and the guide support part 3, except that in this tenth embodiment, the first embodiment uses one spring as viewed from an annular profile, and in the ninth embodiment, two springs are used to elastically act on the moving part 1 of an annular profile.

Eleventh embodiment

Fig. 11A shows another method for simulating cardiopulmonary resuscitation of the chest of a human being, according to an embodiment of the present invention, as an eleventh embodiment.

The eleventh embodiment is substantially similar to the first embodiment in other application modes and steps, and the simulation method is applied to the moving part 1, the elastic part 2 and the guide support part 3, except that the first embodiment uses one spring as viewed from an annular profile, and in the eleventh embodiment, three springs are used to elastically act on the moving part 1 of an annular profile.

Twelfth embodiment

Fig. 12A shows another method for simulating cardiopulmonary resuscitation of the chest of a human being, according to an embodiment of the present invention, as a twelfth embodiment.

The twelfth embodiment is substantially similar to the other application and steps of the first embodiment, and the simulation method is applied to the moving part 1, the elastic part 2, and the guide support part 3, and has a difference that the first embodiment uses a spring as the elastic part 2, and the twelfth embodiment uses a deformed elastic piece as the elastic part 2.

In each of the above embodiments, the elastic coefficients of all the elastic portions 2 used are the same, and it can be estimated at what position the pressing force is applied when the pressing machine acts on the human body; the elastic coefficients of the elastic parts 2 can be set to be different, so that the elastic coefficient of each elastic part 2 corresponds to the human body at different parts; the elastic coefficient of the elastic part 2 at the front can be larger than that of the elastic part at the back to simulate the actual situation that the ribs at the front are lower than the ribs at the back when the human body lies on the back.

The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (11)

1. A simulation method for cardiopulmonary resuscitation of a chest of a human body, the simulation method comprising:

anchoring a region as a central region of a cardiopulmonary resuscitation simulation;

arranging a moving part which can be used for bearing external pressing force and/or squeezing force and then moves along a preset moving path around the central area, wherein the preset moving path realizes the change simulation of the human thorax through the elastic action and the guide support; in an initial state, all the moving parts are distributed on the positions of the annular curved surface or the annular outline in a surrounding way, and each moving part is provided with a stop end point used for limiting the moving range of the moving part at one end of the moving path far away from the central area;

providing an elastic action directed away from the central area to the moving part by using the elastic part providing the elastic action, and enabling the moving part to abut against the stopping end point under the elastic action of the elastic part in an initial state;

applying external pressing force and/or extrusion force to the moving parts, enabling the moving parts to approach or separate from the central area along respective moving paths when the moving parts bear the external pressing force and/or extrusion force, and enabling the moving paths of all the moving parts to radially surround the central area;

during the releasing process of the external pressing force and/or the squeezing force, the moving part is forced to be displaced towards a stop end point at one end of the moving path close to the central area by the elastic part until the moving part reaches the stop end point;

under the using state, the external pressing force and/or the squeezing force is repeatedly applied and released for each moving part, so that the human thorax cardiopulmonary resuscitation simulation is realized.

2. The method for simulating cardiopulmonary resuscitation from a chest of a human being of claim 1, wherein: in an initial state, all the moving parts are distributed on the annular curved surface or the annular outline in a surrounding mode;

when the moving parts are distributed around the annular curved surface, the annular curved surface is arranged into an elliptic cylinder shape, a cylindrical shape or a shape simulating the outline of the human thorax;

when the moving parts are distributed around the annular outline, the annular outline is arranged to be an ellipse, a circle or an outline shape simulating the section of the human thorax.

3. The method for simulating cardiopulmonary resuscitation from a chest of a human being of claim 1, wherein: data change information of the moving part and/or the elastic part is collected and observed during the repeated application and release of the external pressing force and/or the pressing force.

4. The method for simulating cardiopulmonary resuscitation from a chest of a human body according to claim 3, wherein: the data change information at least comprises one or more of the following data: displacement data of the moving part, force data of the elastic part, and continuous/interval image information of the moving part.

5. The method for simulating cardiopulmonary resuscitation from a chest of a human being of claim 3, wherein: and acquiring the data change information by adopting a distance measuring sensor, a motion sensor, a force sensor or a visual acquisition mechanism.

6. The method for simulating cardiopulmonary resuscitation from a chest of a human body according to claim 1, wherein: the movement path is a path diverging from the central region towards the cut-off end point, and the shape of the path is at least one of the following or a combination of at least two of the following: straight lines, curved lines, broken lines.

7. The method for simulating cardiopulmonary resuscitation from a chest of a human body according to claim 1, wherein: when the moving portions are moved closer to or farther from the central region along the respective moving paths by receiving an external pressing force or pressing force, the moving portions have different moving distances according to the difference in the received external pressing force or the difference in the elastic force of the elastic portions.

8. The method for simulating cardiopulmonary resuscitation from a chest of a human body according to claim 1, wherein: at least one of the moving parts is allowed to rotate along a rotation axis perpendicular to its moving path and substantially parallel to the central area.

9. The method for simulating cardiopulmonary resuscitation from a chest of a human being of claim 2, wherein: at least one of the moving portions is movable in a tangential direction of a cross-sectional profile of the annular profile or the annular curved surface.

10. The method for simulating cardiopulmonary resuscitation from a chest of a human being of claim 1, wherein: and a guide support part for providing the guide support is used for guiding and supporting the moving part along the moving path, and the guide support part is a rigid member which can enable the moving part to be slidably coupled with the shape of the moving path, so that the guide support part is positioned at the inner side or the outer side of the central area.

11. The method for simulating cardiopulmonary resuscitation from a chest of a human being of claim 1, wherein: when the moving parts are arranged around the central area, at least one adjacent two moving parts are hinged through a shaft or flexibly connected through soft materials.

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