Cardiopulmonary resuscitator for implementing chest compression

Abstract

A cardiopulmonary resuscitator (1) for implementing chest compression, comprising: a compression device (10), comprising a compression head (102); a fixing bandage (20), capable of surrounding the chest (2) and having a first end section (201) and a second end section (202) opposite to the first end section (201) in longitudinal extension; and a linking assembly (50), used for linking the compression head (102) of the compression device (10) to the first end section (201) and the second end section (202) of the fixing bandage (20), such that when the cardiopulmonary resuscitator (1) implements compression, the first end section (201) and the second end section (202) of the fixing bandage (20) can be linked with the compression head (102) of the compression device (10), wherein along respective predetermined movement trajectories, the first end section (201) and the second end section (202) of the fixing bandage (20) can move towards each other when the compression head (102) extends out and move away from each other when the compression head (102) retracts, so as to alternately achieve full-circumference compression and full-circumference release of the chest (2) by means of the linkage. The cardiopulmonary resuscitator (1) can improve the efficiency of cardiopulmonary resuscitation.

Description

Cardiopulmonary resuscitation equipment for chest compressions

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on August 14, 2023, with application number 202322181223.X and utility model name “Cardiopulmonary resuscitation device for chest compression”, and the Chinese patent application filed with the State Intellectual Property Office on August 14, 2023, with application number 202311020757.2 and invention name “Cardiopulmonary resuscitation device for chest compression”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the technical field of medical equipment, and more particularly, to a cardiopulmonary resuscitation device for performing chest compressions. Background Art

[0003] During the cardiopulmonary resuscitation (CPR) process, chest compressions are a crucial step in the treatment process. The quality of these compressions can even directly impact whether the patient can recover spontaneous breathing and circulation. In some cases, chest compressions can be performed using a CPR device designed to compress the patient's chest.

[0004] The inventors have studied cardiopulmonary resuscitation devices currently on the market and discovered previously unknown technical deficiencies in these devices. These deficiencies include:

[0005] 1) When using a cardiopulmonary resuscitation device to compress the chest cavity, the chest cavity may expand outward at least partially in the horizontal direction (or in the lateral direction) on the left and right sides of the chest cavity. This may lead to the following problems: during the chest compression period, part or even most of the compression kinetic energy provided by the pressing device to the chest cavity is released outward due to at least partial outward expansion of the chest cavity, which is not conducive to the formation of positive pressure in the chest cavity. During the chest release period, the part of the chest cavity that expanded outward will return inward to its original position, which is not conducive to the formation of negative pressure in the chest cavity. Therefore, using such a cardiopulmonary resuscitation device to compress the chest cavity may not achieve the desired compression effect, and may even cause cardiopulmonary resuscitation failure.

[0006] 2) In some cardiopulmonary resuscitation equipment, the pressing device is usually placed on the patient's chest, and the pressing device will put pressure on the patient's chest due to its own weight. The weight of the pressing device is usually large, which may lead to the following problems: On the one hand, during the chest compression period, when the pressing device is just placed on the patient's chest and has not yet started to perform compression, it will compress the patient's chest due to its own weight, which may cause the patient's chest to produce undesirable deformation and may even cause static sternal displacement; On the other hand, during the chest release period, since the weight of the pressing device is applied to the patient's chest, this is not conducive to the full release or rebound of the patient's chest. Both of these problems will reduce the cardiopulmonary resuscitation efficiency of the cardiopulmonary resuscitation equipment.

[0007] 3) In some cardiopulmonary resuscitation devices, the compression device of the cardiopulmonary resuscitation device usually needs to be fixed to the patient's chest by wrapping a fixing bandage around the patient's chest. This causes the fixing bandage to compress or restrain the patient's chest before the compression device starts to perform compression, which is not conducive to the full release or full rebound of the patient's chest during the chest release period.

[0008] 4) In some cardiopulmonary resuscitation devices, the end of the fixing bandage of the cardiopulmonary resuscitation device may be lifted too high forward due to the telescopic movement of the pressing head of the pressing device, which may cause the patient's chest and back to be pulled up by the fixing bandage and leave the support surface and thus may cause harm to the patient's health.

[0009] Summary of the Invention

[0010] Therefore, the object of the present disclosure is to provide an improved cardiopulmonary resuscitation device for compressing the chest cavity, wherein an improved compression effect on the chest cavity can be achieved by the cardiopulmonary resuscitation device.

[0011] The present disclosure relates to a cardiopulmonary resuscitation device for performing compression on a chest cavity, the cardiopulmonary resuscitation device comprising: a pressing device, the pressing device comprising a pressing head; a fixing bandage, the fixing bandage being capable of surrounding the chest cavity and having a first end section and a second end section opposite to the first end section in its longitudinal extension; and a connecting assembly, the connecting assembly being used to connect the pressing head of the pressing device with the first end section and the second end section of the fixing bandage, so that the first end section and the second end section of the fixing bandage can be linked with the pressing head of the pressing device when the cardiopulmonary resuscitation device performs compression, wherein the first end section and the second end section of the fixing bandage can move toward each other when the pressing head is extended and move away from each other along their respective predetermined motion trajectories when the pressing head is extended and when the pressing head is retracted, so as to alternately achieve full-circle compression and full-circle release of the chest cavity through the linkage.

[0012] The beneficial technical effects of the present disclosure may include: through the connection assembly, the first end section and the second end section of the fixing bandage can move toward each other along their respective predetermined motion trajectories when the pressing head is extended and move away from each other when the pressing head is retracted, so as to alternately achieve full-circle compression and full-circle release of the chest cavity. Thus, during the chest compression period, the chest cavity can contract inwardly throughout the entire circumference, which helps to form a relatively high positive pressure in the chest cavity so as to form a relatively large forward blood flow in the blood vessels; during the chest release period, the compression kinetic energy stored in the chest cavity and the elasticity of the chest cavity itself can simultaneously drive the chest cavity to expand outwardly throughout the entire circumference, which helps to form a relatively high negative pressure in the chest cavity, thereby improving venous return and myocardial perfusion. An improved compression cycle can be achieved by alternating higher positive pressure and higher negative pressure on the chest cavity, thereby improving the cardiopulmonary resuscitation efficiency of the cardiopulmonary resuscitation device.

[0013] In some embodiments, the connecting assembly can be configured so that the predetermined motion trajectories of the first end segment and the second end segment of the fixing bandage are symmetrical about the central axis of the pressing head, so that the first end segment and the second end segment of the fixing bandage can move symmetrically and synchronously along their respective predetermined motion trajectories about the central axis of the pressing head.

[0014] In some embodiments, the coupling assembly may be arranged symmetrically about a central axis of the pressing head.

[0015] In some embodiments, the pressing device includes a pressing device body, the pressing head is fixed below the pressing device body, and the connecting assembly may include a first connecting rod and a second connecting rod, the first connecting rod is connected to the pressing head on the one hand, and is connected to the first end section of the fixed bandage on the other hand, and is directly or indirectly supported by the pressing device body, and the second connecting rod is connected to the pressing head on the one hand, and is connected to the second end section of the fixed bandage on the other hand, and is directly or indirectly supported by the pressing device body.

[0016] In some embodiments, the first connecting rod and the second connecting rod may be coupled to the pressing head via a common pin.

[0017] In some embodiments, the first link and the second link are respectively rotatable relative to the pressing head.

[0018] In some embodiments, the coupling assembly may include a fixing rod that is fixed to the compression device body as a separate component, or the fixing rod is an integral part of the compression device body.

[0019] In some embodiments, a first sliding groove and a first sliding member capable of sliding in the first sliding groove may be provided in the fixed rod, and a second sliding groove and a second sliding member capable of sliding in the second sliding groove may be provided, the first sliding member may be pivotally connected to the first connecting rod, and the second sliding member may be pivotally connected to the second connecting rod.

[0020] In some embodiments, the first sliding groove and the second sliding groove are configured to extend linearly in a transverse direction of the pressing device.

[0021] In some embodiments, the first sliding groove and the second sliding groove are configured to extend in an arc shape, wherein outer ends of the first sliding groove and the second sliding groove are oriented toward an extending direction of the pressing head.

[0022] In some embodiments, the axial center of the first sliding groove and the axial center of the second sliding groove may each be located within a third section, particularly a quarter section, or a fifth section of the fixing rod near the free end of the fixing rod. In particular, the first sliding groove and the second sliding groove may each be completely located within a third section, particularly a quarter section, or a fifth section of the fixing rod near the free end of the fixing rod.

[0023] In some embodiments, a third sliding groove and a third sliding member capable of sliding in the third sliding groove may be provided in the first connecting rod, and the third sliding member may be pivotally connected to the fixed rod, and a fourth sliding groove and a fourth sliding member capable of sliding in the fourth sliding groove may be provided in the second connecting rod, and the fourth sliding member may be pivotally connected to the fixed rod.

[0024] In some embodiments, the first link may be hinged to the pressing head, and the second link may be hinged to the pressing head.

[0025] In some embodiments, the axial center of the third chute may be located within the middle third, particularly one-fifth, of the first connecting rod, and / or the axial center of the fourth chute may be located within the middle third, particularly one-fifth, of the second connecting rod. In particular, the third chute may be located entirely within the middle third, particularly one-fifth, of the first connecting rod. In particular, the fourth chute may be located entirely within the middle third, particularly one-fifth, of the second connecting rod.

[0026] In some embodiments, a fifth sliding groove may be provided in the first connecting rod, and a sixth sliding groove may be provided in the second connecting rod, and the common pin shaft passes through the fifth sliding groove and the sixth sliding groove and is able to slide in the fifth sliding groove and the sixth sliding groove.

[0027] In some embodiments, the first link may be hingedly connected to the fixed rod, and the second link may be hingedly connected to the fixed rod.

[0028] In some embodiments, the first end section of the fixation bandage may be connected to the first end of the first link, and the second end section of the fixation bandage may be connected to the first end of the second link.

[0029] In some embodiments, the length of the first segment of the first link from its first end to its hinge point with the fixed rod may not exceed 1 / 3 of the length of the first link, and the length of the first segment of the second link from its first end to its hinge point with the fixed rod may not exceed 1 / 3 of the length of the second link.

[0030] In some embodiments, the axial center of the fifth chute can be located within a third, particularly a quarter, or a fifth, section of the first connecting rod near the common pin. The axial center of the sixth chute can be located within a third, particularly a quarter, or a fifth, section of the second connecting rod near the common pin. In particular, the fifth chute can be located entirely within a third, particularly a quarter, or a fifth, section of the first connecting rod near the common pin. The sixth chute can be located entirely within a third, particularly a quarter, or a fifth, section of the second connecting rod near the common pin.

[0031] In some embodiments, when the pressing head is retracted, the first link and the second link may cross to form an X shape.

[0032] In some embodiments, the cardiopulmonary resuscitation device may further include a bracket for holding the compression device to at least partially reduce the pressure on the chest cavity caused by the weight of the compression device itself.

[0033] In some embodiments, the support is configured to hold the compression device in an adjustable position, thereby enabling adjustment of the distance between the free end of the compression head of the compression device and the chest cavity. In particular, the support itself can be configured to be height-adjustable, thereby enabling adjustment of the distance between the free end of the compression head of the compression device and the chest cavity. In particular, the support can be configured to be positionally adjustable relative to the holding device, thereby enabling adjustment of the distance between the free end of the compression head of the compression device and the chest cavity.

[0034] In some embodiments, the bracket may have a single-pole structure, a desk lamp structure, or an arch structure.

[0035] In some embodiments, the cardiopulmonary resuscitation device may include a support plate 30 for supporting the chest cavity, and the support plate is configured with a channel for a fixing bandage to pass through, so that a portion of the support plate can be located between the fixing bandage and the chest cavity to prevent the chest cavity from being pulled forward by the fixing bandage and detaching from the support plate.

[0036] In some embodiments, a suction cup may be sleeved on the free end of the pressing head, and the suction cup is used to suck the chest cavity along the retraction direction during the retraction process of the pressing head, so that the chest cavity can return to its static original position. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present disclosure will be described in more detail below with reference to the accompanying drawings and specific embodiments. The schematic drawings are briefly described as follows:

[0038] FIG1 is a schematic diagram of chest compression using a cardiopulmonary resuscitation device according to some embodiments of the present disclosure, wherein the solid line L1 shows the static contour of the chest when the chest is not compressed, and the dotted line L1′ shows the instantaneous contour of the chest when the chest is compressed the deepest;

[0039] FIG2 is an enlarged view of the pressing device and the connecting assembly of the cardiopulmonary resuscitation device in FIG1 ;

[0040] FIG3 is a schematic diagram of chest compressions performed using a cardiopulmonary resuscitation device according to other embodiments of the present disclosure, wherein the cardiopulmonary resuscitation device includes a support plate configured to prevent the back of the chest from being lifted forward by a fixing bandage and detaching from the support plate when the compression head is extended;

[0041] FIG4 is a partial enlarged view of the support plate of the cardiopulmonary resuscitation device in FIG3 ;

[0042] FIG5 is a schematic diagram of chest compressions performed using cardiopulmonary resuscitation devices according to other embodiments of the present disclosure;

[0043] FIG6 is an enlarged view of the pressing device and the connecting assembly of the cardiopulmonary resuscitation device in FIG5 ;

[0044] FIG7 is a schematic diagram of chest compression using a cardiopulmonary resuscitation device according to other embodiments of the present disclosure;

[0045] FIG8 is an enlarged view of the pressing device and the connecting assembly of the cardiopulmonary resuscitation device in FIG7;

[0046] FIG9 is a schematic diagram of chest compressions performed using cardiopulmonary resuscitation devices according to other embodiments of the present disclosure;

[0047] FIG10 is an enlarged view of the pressing device and the connecting assembly of the cardiopulmonary resuscitation device in FIG9;

[0048] FIG11 is a schematic diagram of chest compressions performed using cardiopulmonary resuscitation devices according to other embodiments of the present disclosure;

[0049] FIG12 is a schematic diagram of chest compressions performed using cardiopulmonary resuscitation devices according to other embodiments of the present disclosure. DETAILED DESCRIPTION

[0050] The present disclosure will be described below with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the present disclosure more complete and fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide many additional embodiments.

[0051] It should be understood that the terms used herein are only used to describe specific embodiments and are not intended to limit the scope of the present disclosure. All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail.

[0052] As used herein, spatially relative terms such as "upper," "lower," "left," "right," "front," "back," "higher," and "lower" may describe the relationship of one feature to another feature in the accompanying drawings. It should be understood that these spatially relative terms encompass different orientations of the device in use or operation, in addition to the orientation shown in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, a feature previously described as "below" another feature may now be described as "above" the other feature. The device may also be otherwise oriented (rotated 90 degrees or in other orientations), and the relative spatial relationships will be interpreted accordingly.

[0053] Herein, the term "A or B" includes "A and B" and "A or B" rather than exclusively including "A" or only "B" unless specifically stated otherwise.

[0054] As used herein, the terms "illustrative" or "exemplary" mean "serving as an example, instance, or illustration," rather than as a "model" to be precisely copied. Any implementation described as exemplary herein is not necessarily to be construed as preferred or advantageous over other implementations. Furthermore, the present disclosure is not to be bound by any expressed or implied theory presented in the preceding technical field, background, summary, or detailed description.

[0055] As used herein, the term "substantially" is intended to include any minor variations due to design or manufacturing imperfections, device or component tolerances, environmental influences, and / or other factors.

[0056] In this document, the term "partially" may refer to any proportion, for example, greater than 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or even 100%, i.e., all.

[0057] Additionally, terms such as "first," "second," and the like may also be used herein for reference purposes only and are not intended to be limiting. For example, the terms "first," "second," and other numerical terms referring to structures or elements do not imply a sequence or order unless the context clearly indicates otherwise.

[0058] The present disclosure provides a cardiopulmonary resuscitation device for performing compression on the chest cavity, the cardiopulmonary resuscitation device comprising: a pressing device, the pressing device comprising a pressing head; a fixing bandage, the fixing bandage being able to surround the chest cavity and having a first end section and a second end section opposite to the first end section in its longitudinal extension; and a connecting assembly, the connecting assembly being used to connect the pressing head of the pressing device with the first end section and the second end section of the fixing bandage, so that the first end section and the second end section of the fixing bandage can be linked with the pressing head of the pressing device when the cardiopulmonary resuscitation device performs compression, wherein the first end section and the second end section of the fixing bandage can move toward each other when the pressing head is extended and move away from each other along their respective predetermined motion trajectories when the pressing head is extended and when the pressing head is retracted, so as to alternately achieve full-circle compression and full-circle release of the chest cavity through the linkage.

[0059] Compared with the cardiopulmonary resuscitation devices according to the prior art, the cardiopulmonary resuscitation device for compressing the chest cavity according to the present disclosure can have the following technical advantages: the first end segment and the second end segment of the fixing bandage are linked to the pressing head of the pressing device through the connecting assembly, and the first end segment and the second end segment of the fixing bandage can contract and relax along their respective predetermined motion trajectories, thereby achieving full-circle compression and full-circle release of the chest cavity. As a result, during the chest compression period, the chest cavity can contract inwardly throughout the entire circumference, which helps to form a relatively high positive pressure in the chest cavity so as to form a relatively large forward blood flow in the blood vessels; during the chest release period, the compression kinetic energy stored in the chest cavity and the elasticity of the chest cavity itself can simultaneously drive the chest cavity to expand outward synchronously throughout the entire circumference, which helps to form a relatively high negative pressure in the chest cavity, thereby improving venous return and myocardial perfusion. By alternating high positive pressure and high negative pressure on the chest cavity, an improved compression cycle can be achieved, thereby improving the cardiopulmonary resuscitation efficiency of the cardiopulmonary resuscitation device.

[0060] This will be explained in more detail below with reference to Figures 1 to 12. It should be noted that, for the purpose of ease of description and understanding, in Figures 1 to 12, the same reference numerals represent the same components or components with the same functions.

[0061] Figure 1 shows a schematic diagram of chest compressions performed on a chest cavity 2 using a cardiopulmonary resuscitation device 1 according to some embodiments of the present disclosure, wherein the solid line L1 shows the static contour of the chest cavity 2 when it is not compressed, and the dashed line L1′ shows the instantaneous contour of the chest cavity 2 when it is compressed to its deepest point. Figure 2 shows an enlarged view of the compression device and coupling assembly 50 of the cardiopulmonary resuscitation device 1 in Figure 1.

[0062] As shown in Figures 1 and 2, the cardiopulmonary resuscitation device 1 for performing compression on the chest cavity 2 according to the present disclosure includes a compression device 10 and a fixation bandage 20. The fixation bandage 20 can surround the chest cavity 2 and has a first end section 201 and a second end section 202 opposite to the first end section 201 in its longitudinal extension. The compression device 10 may include a body 101, a compression head 102 arranged in the body 101, and a driver not shown in Figure 1. The driver can be driven by electricity or by compressed gas, such as compressed air, and can drive the compression head 102 to perform telescopic movement between an extended position (not shown) and a retracted position (shown in Figure 1) along the longitudinal direction of the body 101 (here, the forward direction) so as to perform single-point compression on the chest cavity 2 and thereby cause the fixation bandage 20 to be linked. To this end, the pressing device 10 is equipped with a connecting component 50, which is used to connect the pressing head 102 of the pressing device 10 with the first end section 201 and the second end section 202 of the fixing bandage 20, so that when the cardiopulmonary resuscitation device 1 performs compression, the first end section 201 and the second end section 202 of the fixing bandage 20 are linked with the pressing head 102 of the pressing device 10, wherein the first end section 201 and the second end section 202 of the fixing bandage 20 can move toward each other along their respective predetermined motion trajectories when the pressing head is extended and move away from each other when the pressing head is retracted, so as to alternately achieve full-circle compression (as shown by the dotted line L1′) and full-circle release (as shown by the solid line L1) of the chest cavity 2 through the linkage.

[0063] In some embodiments, as shown in Figures 1 and 2, the coupling assembly 50 can be configured so that the predetermined motion trajectories of the first end section 201 and the second end section 202 of the fixing bandage 20 are symmetrical about the central axis L2 of the pressing head 102, so that the first end section 201 and the second end section 202 of the fixing bandage 20 can move symmetrically and synchronously along their respective predetermined motion trajectories about the central axis of the pressing head. To this end, the coupling assembly 50 can be configured to be symmetrical about the central axis L2 of the pressing head 102. In the present disclosure, the central axis L2 of the pressing head 102 can be understood as an axis passing through the geometric center of the pressing head 102 along the longitudinal direction (here, the forward direction) of the body 101 of the pressing device 10.

[0064] In some embodiments, the coupling assembly 50 may include a first link 501 and a second link 502. The first link 501 is coupled to the pressing head 102 on one hand and to the first end section 201 of the fixing bandage 20 on the other hand, and is directly or indirectly supported by the main body 101 of the pressing device 10. The second link 502 is coupled to the pressing head 102 on one hand and to the second end section 202 of the fixing bandage 20 on the other hand, and is directly or indirectly supported by the main body 101 of the pressing device 10. In some embodiments, the first link 501 and the second link 502 may be coupled to the pressing head 102 via a common pin 504. Alternatively, two pins 504 may be provided on the pressing head 102, side by side in a transverse direction, with each pin 504 assigned to one of the first and second links 501, 502. In some embodiments, the first and second links 501, 502 are each rotatable relative to the pressing head 102. The coupling assembly 50 may include a fixing rod 503 fixed to the body 101 of the pressing device 10 as a separate component, or the fixing rod 503 may be an integral part of the body 101 of the pressing device 10. The first link 501 and the second link 502 may be supported by the fixing rod 503.

[0065] In the present disclosure, the term "fixing rod 503" can be broadly understood as a component that provides a support point for the first connecting rod 501 and the second connecting rod 502, which can be configured as a rod-shaped component (as shown in Figures 1 to 12), and in particular, can be fixed to the main body 101 of the pressing device 10 as a separate component. However, it should be understood that the fixing rod 503 can also be configured as a non-rod-shaped component, for example, can include two separate fixing sections, and in particular can be an integral part of the main body 101 of the pressing device 10. In the present disclosure, the term "connection" can be broadly understood as a connection method that can produce linkage, which can be a direct connection or an indirect connection.

[0066] Specifically, as shown in Figures 1 and 2, the connecting assembly 50 of the cardiopulmonary resuscitation device 1 may include a first connecting rod 501, a second connecting rod 502, and a fixed rod 503. The first connecting rod, the second connecting rod, and the fixed rod 503 are pivotally connected to each other to form a closed structure, for example, a closed triangular structure. Here, the fixed rod 503 is fixed to the body 101 of the pressing device 10 and is used to provide support for the first connecting rod 501 and the second connecting rod 502. The first connecting rod 501 is used to connect the pressing head 102 to the first end section 201 of the fixing bandage 20. The second connecting rod 502 is used to connect the pressing head 102 to the second end section 202 of the fixing bandage 20. The first link 501 and the second link 502 are connected to the pressing head 102 by means of a common pin 504 (alternatively, two pins 504 arranged side by side in the transverse direction can be provided on the pressing head 102, each pin 504 being assigned to one of the first link 501 and the second link 502), so that when the cardiopulmonary resuscitation device 1 performs compression, the first link 501 and the second link 502 pivot, thereby driving the first end section 201 and the second end section 202 of the fixing bandage 20 to move toward each other along their respective predetermined motion trajectories when the pressing head 102 is extended and move away from each other when the pressing head 102 is retracted. To this end, the fixed rod 503 of the coupling assembly 50 may be provided with a first chute 505 and a first sliding member 507 capable of sliding in the first chute 505, and a second chute 506 and a second sliding member 508 capable of sliding in the second chute 506. The first sliding member 507 is pivotally connected to the first connecting rod 501, and the second sliding member 508 is pivotally connected to the second connecting rod 502. Here, the first sliding member 507 and the second sliding member 508 can be configured as sliders or pins that match the chute, and the sliders or pins can be pivotally connected to the corresponding connecting rods. In addition, the common pin 504 can be disposed on the central axis L2 of the pressing head 102.

[0067] In some embodiments, the cardiopulmonary resuscitation device 1 may include multiple coupling assemblies 50, for example, two coupling assemblies 50. For example, in the embodiment shown in Figures 1 and 2, another coupling assembly 50 (not shown) may be provided on the other side of the compression device 10 facing away from the coupling assembly 50 shown in Figure 1. These two coupling assemblies 50 may be arranged opposite each other, particularly symmetrically, with respect to the radial direction of the compression head 102, for example, with respect to the diameter of the compression head 102. The first slider 507 may be configured as a common pin in the first slots 505 of the two coupling assemblies 50 and may slide synchronously in the first slots 505 of the two coupling assemblies 50. The second slider 508 may be configured as a common pin in the second slots 506 of the two coupling assemblies 50 and may slide synchronously in the second slots 506 of the two coupling assemblies 50. In this case, the first end section 201 of the fixation bandage 20 may be directly connected to the first slider 507 and indirectly coupled to the first connecting rod 501, thereby enabling linkage with the compression head 102. Similarly, the second end section 201 of the fixing bandage 20 can be directly connected to the first sliding member 507 and indirectly coupled to the first connecting rod 501 , so as to be able to be linked with the pressing head 102 .

[0068] In some embodiments, as shown in Figures 1 and 2, the first chute 505 and the second chute 506 can be configured to extend in a straight line in the transverse direction x of the pressing device 10. As a result, the first end section 201 and the second end section 202 of the fixing bandage 20 can contract and expand along a predetermined linear motion trajectory. It should be noted that, through research and testing by the inventors, it has been discovered that if the first end section 201 and the second end section 202 of the fixing bandage 20 are lifted forward too high due to excessive pivoting of the first connecting rod 501 and the second connecting rod 502 during the telescopic movement of the pressing head 102, this may cause the back of the patient's chest 2 to be pulled up by the fixing bandage 20 and detached from its support surface. To this end, as shown in Figures 1 and 2, the inventor cleverly sets the first slide groove 505 and the second slide groove 506 to extend in a straight line with respect to the lateral direction x of the pressing device 10, so that the contraction trajectory of the first end section 201 and the second end section 202 of the fixing bandage 20 is the lateral direction x of the pressing device 10, which is the horizontal direction here. This can prevent the back of the patient's chest 2 from being pulled forward too high by the fixing bandage 20 and leaving its support surface.

[0069] In some embodiments, the axial center Z1 of the first sliding groove 505 and the axial center Z2 of the second sliding groove 506 may each be located in a third section, particularly a quarter section, or a fifth section of the fixing rod 503 near the free end of the fixing rod 503. In particular, the first sliding groove 505 and the second sliding groove 506 may each be completely located in a third section, particularly a quarter section, or a fifth section of the fixing rod 503 near the free end of the fixing rod 503.

[0070] In some embodiments, the cardiopulmonary resuscitation device 1 may further include a support plate 30 for supporting the chest cavity 2 and / or a bracket 40 for holding the compression device 10. The bracket 40 may be provided on the support plate 30. The bracket 40 is configured to hold the compression device 10 so as to at least partially reduce the pressure on the chest cavity 2 caused by the weight of the compression device 10. By providing the bracket 40 for supporting the compression device 10, the pressure on the patient's chest cavity 2 caused by the weight of the compression device 10 can be reduced. This not only helps to avoid undesirable deformation of the patient's chest cavity 2 and the static sternal displacement that may result therefrom, but also helps the patient's chest cavity 2 to fully release or fully rebound, thereby improving the cardiopulmonary resuscitation efficiency of the cardiopulmonary resuscitation device 1.

[0071] In some embodiments, the support 40 can be constructed to hold the pressing device 10 in an adjustable position, thereby enabling adjustment of the distance between the free end 103 of the pressing head 102 of the pressing device 10 and the chest cavity 2. In particular, the support 40 itself can be constructed to be height-adjustable. In particular, the support 40 can be constructed to be able to adjust its position relative to the pressing device 10, thereby enabling adjustment of the distance between the free end 103 of the pressing head 102 of the pressing device 10 and the chest cavity 2. Specifically, as shown in FIG1 , the support 40 can have a single-rod structure. The single-rod structure includes a crossbar 42 for supporting the pressing device 10 and two vertical rods 41 for supporting the crossbar 42. Here, the crossbar 42 is constructed to be fixed relative to the vertical rod 41 in an adjustable height in the vertical direction, and / or is constructed to be able to adjust its position relative to the pressing device 10, thereby enabling adjustment of the distance between the pressing head 102 of the pressing device 10 and the chest cavity 2. By means of the bracket 40 disclosed herein, the compression device 10 of the cardiopulmonary resuscitation apparatus 1 can be maintained at a desired distance in front of the patient's chest cavity 2 solely by means of the bracket 40. This means that the compression device 10 no longer needs to be fixed to the patient's chest cavity 2 by means of the fixing bandage 20 that is wrapped around and constrained around the patient's chest cavity 2, and a base that increases the contact area between the compression device 10 and the chest cavity 2 is no longer required. This not only prevents the fixing bandage 20 from compressing or constraining the patient's chest cavity 2 before the compression device 10 begins to perform compressions, but also simplifies the compression device 10 and thereby reduces the weight of the compression device 10 and the resulting pressure on the patient's chest cavity, thereby facilitating the full release or full rebound of the patient's chest cavity 2 during the release phase of the chest cavity 2. Furthermore, by means of the bracket 40 disclosed herein, the distance of the compression head 102 of the compression device 10 relative to the chest cavity 2 can be adjusted, and the compression head 102 of the compression device 10 can be configured such that the compression head 102 can contact the chest cavity 2 when it is extended, and can separate from the chest cavity 2 when it is retracted. As a result, the compression device 10 can be substantially prevented from exerting pressure on the patient's chest cavity 2 due to its own weight. This not only helps reduce the risk of static sternal displacement in the patient, but also helps the patient's chest cavity 2 fully release during the chest cavity 2 release phase, thereby improving the cardiopulmonary resuscitation efficiency of the cardiopulmonary resuscitation device 1.

[0072] In some embodiments, a suction cup 108 can be mounted on the free end 103 of the pressing head 102. The suction cup 108 is used to suck the thoracic cavity 2 along the retraction direction during the retraction of the pressing head 102, so that the thoracic cavity 2 can return to its static original position. In this way, during the retraction of the pressing head 102, the suction cup 108 mounted on the free end 103 of the pressing head 102 can suck the front of the thoracic cavity 2 up a distance along the retraction direction, which helps to form a relatively high negative pressure in the thoracic cavity 2, thereby improving venous return and myocardial perfusion. In addition, instead of the suction cup 108, a protective pad 109 can be mounted on the free end 103 of the pressing head 102 (see Figure 11).

[0073] Continuing to refer to Figures 1 and 2, when the compression head 102 is in the retracted position, the first end section 201 and the second end section 202 of the fixing bandage 20 are spaced apart from each other by a first distance D1 in the transverse direction x (here, the horizontal direction) of the compression device 10, and are spaced apart from the first end surface S1 of the compression device 10 facing the chest cavity 2 in the longitudinal direction z (here, the forward direction) of the body 101 by a second distance D2. By appropriately setting the data ranges of the first distance D1 and the second distance D2, such as the first to third groups of data ranges to be described below, the first end section 201 and the second end section 202 of the fixing bandage 20 can contract and expand along their respective predetermined motion trajectories when the cardiopulmonary resuscitation device 1 performs compressions, so as to achieve successive full-circle compression and full-circle release around the chest cavity 2 when compressions are performed.

[0074] In the first data range, the first distance D1 can be set to between 100 mm and 170 mm, and the second distance D2 can be set to between 35 mm and 60 mm. Preferably, the first distance D1 can be set to between 100 mm and 130 mm, and / or the second distance D2 can be set to between 40 mm and 60 mm. Further preferably, the first distance D1 can be set to between 114 mm and 124 mm, and / or the second distance D2 can be set to between 37 mm and 47 mm. In the second data range, the first distance D1 can be set to between 117 mm and 121 mm, and the second distance D2 can be set to between 40 mm and 44 mm. Preferably, the first distance D1 can be set to 119 mm, and / or the second distance D2 can be set to 42 mm. In the third data range, the first distance D1 can be set between 105 mm and 115 mm, and the second distance D2 can be set between 50 mm and 60 mm. Preferably, the first distance D1 can be set between 108 mm and 112 mm, and / or the second distance D2 can be set between 53 mm and 57 mm. In addition, a suction cup 108 or a protective pad 109 can be mounted on the free end 103 of the pressing head 102. The thickness of the suction cup 108 or the protective pad 109 can be calculated within the second distance D2.

[0075] It has been demonstrated that when the first distance D1 and the second distance D2 are within the first data range, the chest cavity 2 does not experience localized outward expansion during compressions performed by the cardiopulmonary resuscitation device 1. That is, the horizontal and forward widths of the chest cavity 2 do not increase, but rather can decrease, as shown in FIG1 . In some cases, the horizontal width of the chest cavity 2 can be reduced by 5% to 8%, for example, 6% or 7%, and / or the forward width of the chest cavity 2 can be reduced by 5% to 10%, for example, 5% to 8%. Furthermore, when the first distance D1 and the second distance D2 are within the second or third data ranges, the rate of change in the cross-sectional area of ​​the chest cavity 2 during compressions performed by the cardiopulmonary resuscitation device 1 can reach a relatively large value, for example, between 16% and 20%. This allows for a relatively effective compression effect. In this article, the "cross-sectional area of ​​the thoracic cavity 2" can be understood as the cross-sectional area of ​​the thoracic cavity 2 in the plane composed of the x-axis and z-axis shown in Figures 1 and 2, such as the cross-sectional area of ​​the thoracic cavity 2 surrounded by the solid line L1 or the dotted line L1' in Figure 1.

[0076] As shown in Figures 1 and 2, when the pressing head 102 is in the retracted position, the free end 103 of the pressing head 102 can extend a first length T1 beyond the first end surface S1 of the pressing device 10 facing the chest cavity 2. In other words, when the pressing head 102 is in the retracted position, the pressing head 102 protrudes a first length T1 relative to the first end surface S1. The first length T1 can be between 4mm and 6mm. The purpose of the first length T1 is to enable the pressing device 10 to adapt to the front contour of the patient's chest cavity 2 when placed on the front side of the patient's chest cavity 2, thereby reducing the ineffective compression stroke of the pressing head 102. In addition, when the pressing head 102 is in the extended position, the free end 103 of the pressing head 102 can extend a second length beyond the first end surface S1. The second length is greater than the first length. Here, the second length can be between 50mm and 60mm. In this article, the second length can also be understood as the compression depth of the pressing head 102. In addition, a suction cup 108 or a protection pad 109 may be sleeved on the free end 103 of the pressing head 102. The thickness of the suction cup 108 or the protection pad 109 may be calculated within the first length T1.

[0077] In some embodiments, the effective length of the fixing bandage 20 can be set to between 50 cm and 125 cm, for example, between 45 cm and 120 cm, for example, between 60 cm and 110 cm, for example, approximately 80 cm or approximately 90 cm, and / or the width of the fixing bandage 20 can be set to between 80 mm and 100 mm, for example, between 85 mm and 95 mm. Here, the effective length of the fixing bandage 20 can be understood as the longitudinal extension between the first end section 201 and the second end section 202 of the fixing bandage 20. The overall length of the fixing bandage 20 can be approximately equal to the effective length, or greater than the effective length, for example, 30 cm to 40 cm greater than the effective length. In other words, the overall length of the fixing bandage 20 can be set to between 90 cm and 155 cm, for example, between 95 cm and 150 cm, for example, between 100 cm and 140 cm, for example, approximately 110 cm or approximately 120 cm.

[0078] In some embodiments, as shown in Figure 2, the connecting assembly 50 can be configured so that during the compression process of the cardiopulmonary resuscitation device 1, the angle a1 formed by the first end segment 201 and the second end segment 202 of the fixing bandage 20 and the common pin 504 is between 30° and 150°, for example, between 33° and 148°, for example, between 35° and 145°, for example, between 40° and 140°, for example, between 43° and 138°, for example, between 45° and 135°, for example, between 50° and 130°, for example, between 53° and 128°, for example, between 55° and 125°, or for example, between 60° and 120°.

[0079] FIG3 shows a schematic diagram of applying compressions to the chest cavity 2 using a cardiopulmonary resuscitation device 1 according to other embodiments of the present disclosure, wherein the cardiopulmonary resuscitation device 1 includes a support plate 30 configured to prevent the back of the chest cavity 2 from being lifted forward by the fixing bandage 20 and detaching from the support plate 30 when the compression head 102 is extended. FIG4 shows an enlarged partial view of the support plate 30 of the cardiopulmonary resuscitation device 1 in FIG3 .

[0080] In the embodiment shown in Figures 3 and 4 , unlike the embodiment shown in Figures 1 and 2 , the support plate 30 of the cardiopulmonary resuscitation device 1 for supporting the chest cavity 2 is configured with a passage 33 for the fixing bandage 20 to pass through, so that a portion of the support plate 30 can be positioned between the fixing bandage 20 and the chest cavity 2, thereby preventing the chest cavity 2 from being pulled forward by the fixing bandage 20 and detaching from the support plate 30. Specifically, as more clearly shown in Figure 4 , the support plate 30 can include a flat plate 31 for supporting the chest cavity 2 and a base 32 for supporting the flat plate 31. A passage 33 for the fixing bandage 20 to pass through is configured between the flat plate 31 and the base 32, and the fixing bandage 20 can extend through the passage 33. As a result, the flat plate 31 of the support plate 30 can be positioned between the fixing bandage 20 and the chest cavity 2, thereby preventing the chest cavity 2 from being pulled forward by the fixing bandage 20 and detaching from the support plate 30.

[0081] Figure 5 shows a schematic diagram of using the cardiopulmonary resuscitation device 1 according to some other embodiments of the present disclosure to compress the chest cavity 2. Figure 6 shows an enlarged view of the compression device 10 and the coupling assembly 50 of the cardiopulmonary resuscitation device 1 in Figure 5.

[0082] In the embodiment shown in Figures 5 and 6 , unlike the embodiment shown in Figures 1 and 2 , the first and second chutes 505 and 506 are configured to extend in an arc, with their outer ends oriented toward the direction of extension of the pressing head. It should be understood that the outer ends of the first and second chutes 505 and 506 may also be oriented in other directions depending on actual needs. This allows the first and second end sections 201 and 202 of the fixation bandage 20 to contract and expand along a predetermined arc-shaped motion trajectory. To this end, the fixing rod 503 may be configured, for example, as a curved rod. The degree of curvature of the curved rod may be set and adjusted based on the desired compression requirements. In particular, the angle a2 formed by the axial tangent of the outer contour of the curved rod and the transverse direction x of the pressing device 10 may be set to between 0° and 60°, particularly between 0° and 55°, 0° and 50°, or 0° and 45°. By configuring the first and second chutes 505, 506 to extend in an arcuate shape, compared to the straight-line first and second chutes 505, 506 in the embodiments of Figures 1 to 4, when the cardiopulmonary resuscitation device 1 performs compressions, the first and second sliders 507, 508 can slide relatively smoothly in their respective chutes, and when the compression head 102 is in the extended position, the sliders can slide to a position relatively far from the front of the chest cavity 2, which is conducive to forming a relatively large positive pressure in the chest cavity 2. In addition, as shown in Figures 3 and 4, the arrangement of other components of the cardiopulmonary resuscitation device 1 can be similar to that of Figures 1 and 2, and will not be repeated here.

[0083] Figure 7 shows a schematic diagram of using the cardiopulmonary resuscitation device 1 according to some other embodiments of the present disclosure to compress the chest cavity 2. Figure 8 shows an enlarged view of the compression device 10 and the coupling assembly 50 of the cardiopulmonary resuscitation device 1 in Figure 7.

[0084] The embodiment shown in Figures 7 and 8 differs from the embodiment shown in Figures 1 and 2 in that a third sliding groove 513 and a third sliding member 523 capable of sliding in the third sliding groove 513 are provided in the first connecting rod 501, and the third sliding member 523 is pivotally connected to the fixed rod 503. Furthermore, a fourth sliding groove 514 and a fourth sliding member 524 capable of sliding in the fourth sliding groove 514 are pivotally connected to the fixed rod 503. Here, the first connecting rod 501 can be hinged to the pressing head 102, and the second connecting rod 502 can be hinged to the pressing head 102. Here, the third sliding groove 513 and the fourth sliding groove 514 can be arranged symmetrically about the central axis L2 of the pressing head 102. The third sliding member 523 and the fourth sliding member 524 can be configured, for example, as sliders or pins that match the corresponding sliding grooves and are pivotally connected to the fixed rod 503. Furthermore, the fixing rod 503 may be configured as a connecting rod, and may be provided to extend linearly with respect to the transverse direction x of the pressing device 10 .

[0085] In some embodiments, the axial center Z3 of the third chute 513 may be located within the middle third section, particularly the middle fifth section, of the first connecting rod 501, and / or the axial center Z4 of the fourth chute 514 may be located within the middle third section, particularly the middle fifth section, of the second connecting rod 502. In particular, the third chute 513 may be entirely located within the middle third section, particularly the middle fifth section, of the first connecting rod 501. In particular, the fourth chute 514 may be entirely located within the middle third section, particularly the middle fifth section, of the second connecting rod 502.

[0086] In addition, as shown in FIG7 and FIG8 , the arrangement of other components of the cardiopulmonary resuscitation device 1 may be similar to that of FIG1 and FIG2 , and will not be described in detail here.

[0087] Figure 9 shows a schematic diagram of using the cardiopulmonary resuscitation device 1 according to other embodiments of the present disclosure to compress the chest cavity 2. Figure 10 shows an enlarged view of the compression device 10 and the coupling assembly 50 of the cardiopulmonary resuscitation device 1 in Figure 9.

[0088] In the embodiment shown in Figures 9 and 10, unlike the embodiment shown in Figures 1 and 2, a fifth sliding groove 515 is provided in the first connecting rod 501, and a sixth sliding groove 516 may be provided in the second connecting rod 502. The common pin 504 passes through the fifth sliding groove 515 and the sixth sliding groove 516 and is able to slide in the fifth sliding groove 515 and the sixth sliding groove 516. Here, the first connecting rod 501 and the second connecting rod 502 can intersect to form an X shape. The fifth sliding groove 515 and the sixth sliding groove 516 can be arranged symmetrically about the central axis L2 of the pressing head 102. In addition, the fixing rod 503 can be configured as a connecting rod and can be arranged to extend linearly with respect to the transverse direction x of the pressing device 10.

[0089] In some embodiments, the first link 501 may be hinged to the fixing rod 503, and the second link 502 may be hinged to the fixing rod 503. The first end section 201 of the fixing bandage 20 may be connected to the first end of the first link 501, and the second end section 202 of the fixing bandage 20 may be connected to the first end of the second link 502. In addition, the length of the first section of the first link 501 from its first end to its hinge point with the fixing rod 503 may not exceed 1 / 3 of the length of the first link 501, and the length of the first section of the second link 502 from its first end to its hinge point with the fixing rod 503 may not exceed 1 / 3 of the length of the second link 502.

[0090] In some embodiments, the axial center Z5 of the fifth slide 515 can be located within a third section, particularly a quarter section, or a fifth section, of the first connecting rod 501 near the common pin 504. The axial center Z6 of the sixth slide 516 can be located within a third section, particularly a quarter section, or a fifth section, of the second connecting rod 502 near the common pin 504. In particular, the fifth slide 515 can be completely located within a third section, particularly a quarter section, or a fifth section, of the first connecting rod 501 near the common pin 504. The sixth slide 516 can be completely located within a third section, particularly a quarter section, or a fifth section, of the second connecting rod 502 near the common pin 504.

[0091] In addition, as shown in FIG9 and FIG10 , the arrangement of other components of the cardiopulmonary resuscitation device 1 may be similar to that of FIG1 and FIG2 , and will not be described in detail here.

[0092] Figure 11 shows a schematic diagram of applying compression to the chest cavity 2 using a cardiopulmonary resuscitation device 1 according to other embodiments of the present disclosure. In the embodiment shown in Figure 11 , unlike the embodiments shown in Figures 1 to 10 , the support 40 has a desk lamp-like structure, rather than a single-rod structure. The desk lamp-like structure includes a horizontal rod 42 for supporting the compression device 10 and a vertical rod 41 for supporting the horizontal rod 42. The horizontal rod 42 is configured to be vertically fixed relative to the vertical rod 41 and / or to be adjustable relative to the compression device 10, thereby adjusting the distance of the compression head 102 of the compression device 10 from the chest cavity 2. Furthermore, a protective pad 109 is provided on the free end 103 of the compression head 102, instead of a suction cup 108. As shown in Figure 11 , the arrangement of the other components of the cardiopulmonary resuscitation device 1 can be similar to that of Figures 1 and 2 , and will not be further described here.

[0093] Figure 12 is a schematic diagram of using the cardiopulmonary resuscitation device 1 according to other embodiments of the present disclosure to press the chest cavity 2. In the embodiment shown in Figure 12, unlike the embodiments in Figures 1 to 11, the bracket 40 does not have a single-rod structure, but has an arch structure. The arch structure includes an arch-shaped support rod for supporting the pressing device 10. Here, the arch-shaped support rod is constructed to be able to adjust its position relative to the pressing device 10, so that the distance between the pressing head 102 of the pressing device 10 and the chest cavity 2 can be adjusted. In addition, as shown in Figure 12, the arrangement of other components of the cardiopulmonary resuscitation device 1 can be similar to the arrangement of Figures 1 and 2, and will not be repeated here.

[0094] Although exemplary embodiments of the present disclosure have been described, it will be understood by those skilled in the art that various changes and modifications may be made to the exemplary embodiments of the present disclosure without departing substantially from the spirit and scope of the present disclosure. Therefore, all such changes and modifications are intended to be within the scope of protection of the present disclosure as defined by the appended claims. The present disclosure is defined by the appended claims, and equivalents of these claims are intended to be included therein.

Claims

1. A cardiopulmonary resuscitation device for chest compression, characterized in that: The cardiopulmonary resuscitation equipment comprises: A pressing device, the pressing device comprising a pressing head; a fixation bandage which can surround the thorax and has in its longitudinal extension a first end section and a second end section opposite the first end section; and A connecting assembly, wherein the connecting assembly is used to connect the pressing head of the pressing device and the first end section and the second end section of the fixing bandage, so that when the cardiopulmonary resuscitation device performs compression, the first end section and the second end section of the fixing bandage can be linked with the pressing head of the pressing device, wherein the first end section and the second end section of the fixing bandage can move toward each other when the pressing head is extended and move away from each other when the pressing head is retracted along their respective predetermined motion trajectories, so as to alternately achieve full-circle compression and full-circle release of the chest cavity through the linkage.

2. The cardiopulmonary resuscitation device for chest compression according to claim 1, characterized in that: The connecting assembly is configured so that the predetermined movement trajectories of the first end section and the second end section of the fixing bandage are symmetrical about the central axis of the pressing head, so that the first end section and the second end section of the fixing bandage can move symmetrically and synchronously along their respective predetermined movement trajectories about the central axis of the pressing head.

3. The cardiopulmonary resuscitation device for chest compression according to claim 2, characterized in that: The coupling assembly is arranged symmetrically with respect to a central axis of the pressing head.

4. A cardiopulmonary resuscitation device for chest compression according to any one of claims 1 to 3, characterized in that: The pressing device includes a pressing device body, and the pressing head is fixed below the pressing device body. The connecting assembly includes a first connecting rod and a second connecting rod. The first connecting rod is connected to the pressing head on the one hand, and is connected to the first end section of the fixing bandage on the other hand, and is directly or indirectly supported by the pressing device body. The second connecting rod is connected to the pressing head on the one hand, and is connected to the second end section of the fixing bandage on the other hand, and is directly or indirectly supported by the pressing device body.

5. The cardiopulmonary resuscitation device for chest compression according to claim 4, characterized in that: The first connecting rod and the second connecting rod are connected to the pressing head by means of a common pin.

6. The cardiopulmonary resuscitation device for chest compression according to claim 4, characterized in that: The first connecting rod and the second connecting rod can rotate relative to the pressing head respectively.

7. The cardiopulmonary resuscitation device for chest compression according to claim 4, characterized in that: The coupling assembly comprises a fixing rod which is fixed to the pressing device body as a separate component, or the fixing rod is an integral part of the pressing device body.

8. The cardiopulmonary resuscitation device for chest compression according to claim 7, characterized in that: A first sliding groove and a first sliding member capable of sliding in the first sliding groove are provided in the fixed rod, and a second sliding groove and a second sliding member capable of sliding in the second sliding groove are provided, the first sliding member is pivotally connected to the first connecting rod, and the second sliding member is pivotally connected to the second connecting rod.

9. The cardiopulmonary resuscitation device for chest compression according to claim 8, characterized in that: The first sliding groove and the second sliding groove are configured to extend linearly in a lateral direction of the pressing device.

10. The cardiopulmonary resuscitation device for chest compression according to claim 8, characterized in that: The first sliding groove and the second sliding groove are arranged to extend in an arc shape, wherein outer ends of the first sliding groove and the second sliding groove are oriented toward the extending direction of the pressing head.

11. A cardiopulmonary resuscitation device for chest compression according to any one of claims 8 to 10, characterized in that: The axial center of the first sliding groove and the axial center of the second sliding groove are respectively located in a third section of the fixing rod close to the free end of the fixing rod.

12. The cardiopulmonary resuscitation device for chest compression according to claim 7, characterized in that: A third sliding groove and a third sliding member capable of sliding in the third sliding groove are provided in the first connecting rod, and the third sliding member is pivotally connected to the fixed rod. A fourth sliding groove and a fourth sliding member capable of sliding in the fourth sliding groove are provided in the second connecting rod, and the fourth sliding member is pivotally connected to the fixed rod.

13. The cardiopulmonary resuscitation device for chest compression according to claim 12, characterized in that: The first connecting rod is hinged to the pressing head, and the second connecting rod is hinged to the pressing head.

14. The cardiopulmonary resuscitation device for chest compression according to claim 12, characterized in that: The axial center of the third link is located in the middle one-third section of the first connecting rod, and / or the axial center of the fourth link is located in the middle one-third section of the second connecting rod.

15. The cardiopulmonary resuscitation device for chest compression according to claim 7, characterized in that: A fifth sliding groove is provided in the first connecting rod, and a sixth sliding groove is provided in the second connecting rod. A common pin passes through the fifth sliding groove and the sixth sliding groove and can slide in the fifth sliding groove and the sixth sliding groove.

16. The cardiopulmonary resuscitation device for chest compression according to claim 15, characterized in that: The first connecting rod is hinged to the fixing rod, and the second connecting rod is hinged to the fixing rod.

17. The cardiopulmonary resuscitation device for chest compression according to claim 16, characterized in that: The length of the first section of the first link from its first end to its hinge point with the fixed rod does not exceed 1 / 3 of the length of the first link, and the length of the first section of the second link from its first end to its hinge point with the fixed rod does not exceed 1 / 3 of the length of the second link.

18. The cardiopulmonary resuscitation device for chest compression according to claim 15, characterized in that: The axial center of the fifth guide groove is located in a third section of the first connecting rod close to the common pin shaft, and / or the axial center of the sixth guide groove is located in a third section of the second connecting rod close to the common pin shaft.

19. A cardiopulmonary resuscitation device for chest compression according to any one of claims 15 to 18, characterized in that When the pressing head is in the retracted position, the first link and the second link cross to form an X shape.

20. The cardiopulmonary resuscitation device for chest compression according to any one of claims 1 to 3, characterized in that: The cardiopulmonary resuscitation device further comprises a support for holding the compression device so as to at least partially reduce the pressure on the chest cavity caused by the weight of the compression device itself.

21. The cardiopulmonary resuscitation device for chest compression according to claim 20, characterized in that: The support is configured to hold the pressing device in a positionally adjustable manner, so that the distance between the free end of the pressing head of the pressing device and the chest cavity can be adjusted.

22. The cardiopulmonary resuscitation device for chest compression according to claim 20, characterized in that: The bracket has a single-rod structure, a table lamp structure or an arch structure.

23. A cardiopulmonary resuscitation device for chest compression according to any one of claims 1 to 3, characterized in that: The cardiopulmonary resuscitation device includes a support plate for supporting the chest cavity, wherein the support plate is configured with a channel for a fixing bandage to pass through, so that a portion of the support plate can be located between the fixing bandage and the chest cavity to prevent the chest cavity from being pulled forward by the fixing bandage and detaching from the support plate.

24. A cardiopulmonary resuscitation device for chest compression according to any one of claims 1 to 3, characterized in that: A suction cup is sleeved on the free end of the pressing head, and the suction cup is used to attract the chest cavity along the retraction direction during the retraction process of the pressing head, so as to facilitate the chest cavity to return to its static original position.

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