Cardiopulmonary resuscitation device for performing chest compressions

Abstract

This disclosure relates to a cardiopulmonary resuscitation (CPR) device for performing chest compressions, comprising: a compression device including a compression head; a fixation bandage capable of surrounding the chest cavity and having a first end segment and a second end segment opposite to the first end segment in its longitudinal extension; and a coupling assembly for connecting the compression head of the compression device to the first and second end segments of the fixation bandage, such that when the CPR device performs compressions, the first and second end segments of the fixation bandage are linked with the compression head of the compression device, the first and second end segments of the fixation bandage being able to move towards each other along their respective predetermined motion trajectories when the compression head is extended and away from each other when the compression head is retracted, so as to alternately achieve full-circumferential compression and full-circumferential release of the chest cavity through the linkage. The CPR device according to this disclosure can achieve improved chest compression effects and has improved CPR efficiency.

Description

Technical Field

[0001] This disclosure relates to the field of medical device technology, and more specifically, to a cardiopulmonary resuscitation device for performing chest compressions. Background Technology

[0002] Chest compressions are a crucial part of cardiopulmonary resuscitation (CPR) for patients, and the quality of these compressions can directly affect whether the patient can regain spontaneous breathing and circulation. In some cases, chest compressions can be performed using CPR equipment designed to perform chest compressions.

[0003] The inventors studied existing CPR devices on the market and discovered previously unknown technical flaws in these devices. These flaws include: 1) When performing chest compressions using a CPR device, the chest cavity may expand outward, at least locally, in the horizontal direction (or transverse direction), on both the left and right sides. This can lead to the following problems: During chest compression, a portion, or even most, of the compression energy supplied by the device is released outward due to the outward expansion of the chest cavity, hindering the formation of positive pressure. During chest release, the outwardly expanded portion of the chest cavity returns to its original position, which is detrimental to the formation of negative pressure. Therefore, using such a CPR device to perform chest compressions may not achieve the desired effect and could even lead to CPR failure.

[0004] 2) In some CPR devices, the compression device is typically placed on the patient's chest cavity. Due to its own weight, the device exerts pressure on the chest. This weight is often significant, which can lead to the following problems: Firstly, during chest compression, the device's weight compresses the chest cavity immediately after placement, even before compressions begin, potentially causing undesirable deformation or even static sternal displacement. Secondly, during chest release, the weight of the device hinders proper chest release or recoil. Both of these issues reduce the efficiency of the CPR device.

[0005] 3) In some cardiopulmonary resuscitation (CPR) devices, the compression device is usually fixed to the patient's chest cavity by a fixation bandage. This causes the fixation bandage to compress or bind the patient's chest cavity before the compression device begins to perform compressions, which is not conducive to the full release or full rebound of the patient's chest cavity during the chest cavity release phase.

[0006] 4) In some cardiopulmonary resuscitation (CPR) devices, the end of the fixation bandage may be lifted too high forward due to the extension and retraction of the compression head of the compression device. This may cause the patient's chest and back to be pulled up by the fixation bandage and detached from the support surface, which may therefore harm the patient's health. Summary of the Invention

[0007] Therefore, the purpose of this disclosure is to provide an improved cardiopulmonary resuscitation (CPR) device for performing chest compressions, wherein the improved chest compression effect can be achieved by the CPR device.

[0008] This disclosure relates to a cardiopulmonary resuscitation (CPR) device for performing chest compressions, the CPR device comprising: a compression device including a compression head; a fixation bandage capable of surrounding the chest cavity and having a first end segment and a second end segment opposite to the first end segment in its longitudinal extension; and a coupling assembly for connecting the compression head of the compression device to the first and second end segments of the fixation bandage, such that when the CPR device performs compressions, the first and second end segments of the fixation bandage are linked with the compression head of the compression device, wherein the first and second end segments of the fixation bandage are movable toward each other along their respective predetermined motion trajectories when the compression head is extended and away from each other when the compression head is retracted, so as to alternately achieve full circumferential compression and full circumferential release of the chest cavity through the linkage.

[0009] The beneficial technical effects of this disclosure include: by using a connecting component, the first and second end segments of the fixation bandage can move towards each other along their respective predetermined motion trajectories when the compression head is extended and away from each other when the compression head is retracted, enabling alternating full-circumferential compression and release of the chest cavity. Thus, during chest compression, the chest cavity can contract inwards circumferentially, which helps to create a relatively high positive pressure within the chest cavity, thereby creating a relatively large forward blood flow in the vessels; during chest release, the compression kinetic energy stored within the chest cavity and the elasticity of the chest cavity itself can simultaneously drive the chest cavity to expand outwards synchronously circumferentially, which helps to create a relatively high negative pressure within the chest cavity, thereby improving venous return and myocardial perfusion. An improved compression cycle can be achieved through alternating high positive and high negative pressure on the chest cavity, thereby improving the cardiopulmonary resuscitation efficiency of the cardiopulmonary resuscitation device.

[0010] In some embodiments, the connecting assembly may be configured such that the predetermined movement trajectories of the first and second end segments of the fixation bandage are symmetrical about the central axis of the pressure head, so that the first and second end segments of the fixation bandage can move synchronously and symmetrically about the central axis of the pressure head along their respective predetermined movement trajectories.

[0011] In some implementations, the connecting assembly may be configured to be symmetrical about the central axis of the press head.

[0012] In some embodiments, the connecting assembly may include a first link and a second link, the first link being connected to the pressing head on one side and to a first end section of the fixing bandage on the other side, and being directly or indirectly supported by the body of the pressing device, the second link being connected to the pressing head on one side and to a second end section of the fixing bandage on the other side, and being directly or indirectly supported by the body of the pressing device.

[0013] In some implementations, the first and second links can be connected to the pressing head by means of a common pin.

[0014] In some implementations, the first link and the second link are rotatable relative to the pressing head.

[0015] In some embodiments, the connecting assembly may include a retaining rod that is part of the body of the pressing device or is fixed to the body of the pressing device as a separate component.

[0016] In some embodiments, the fixed rod may be provided with a first sliding groove and a first sliding member that can slide in the first sliding groove, and a second sliding groove and a second sliding member that can slide in the second sliding groove, wherein 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.

[0017] In some embodiments, the first and second slides are configured to extend linearly in the lateral direction of the pressing device.

[0018] In some embodiments, the first and second slides are configured to extend in an arc shape, wherein the outer ends of the first and second slides are oriented toward the direction of extension of the pressing head.

[0019] In some embodiments, the axial center of the first slide and the axial center of the second slide may each be located in one-third, particularly one-quarter, or one-fifth of the segment of the fixed rod near its free end. In particular, the first slide and the second slide may each be completely located in one-third, particularly one-quarter, or one-fifth of the segment of the fixed rod near its free end.

[0020] In some embodiments, a third slide groove and a third sliding member that can slide in the third slide groove may be provided in the first link, the third sliding member being pivotally connected to the fixed rod, and a fourth slide groove and a fourth sliding member that can slide in the fourth slide groove are provided in the second link, the fourth sliding member being pivotally connected to the fixed rod.

[0021] In some embodiments, the first link may be hinged to the pressing head, and the second link may be hinged to the pressing head.

[0022] In some embodiments, the axial center of the third slide groove may be located in the middle one-third section, particularly the middle fifth section, of the first connecting rod, and / or the axial center of the fourth slide groove may be located in the middle one-third section, particularly the middle fifth section, of the second connecting rod. In particular, the third slide groove may be entirely located in the middle one-third section, particularly the middle fifth section, of the first connecting rod. In particular, the fourth slide groove may be entirely located in the middle one-third section, particularly the middle fifth section, of the second connecting rod.

[0023] In some embodiments, a fifth slide groove may be provided in the first link and a sixth slide groove may be provided in the second link, wherein a common pin passes through the fifth and sixth slide grooves and is slidable in the fifth and sixth slide grooves.

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

[0025] In some embodiments, a first end section of the fixing bandage may be connected to a first end of a first link, and a second end section of the fixing bandage may be connected to a first end of a second link.

[0026] In some embodiments, the length of the first link from its first end to the first section of its hinge point with the fixed link may not exceed 1 / 3 of the length of the first link, and the length of the second link from its first end to the first section of its hinge point with the fixed link may not exceed 1 / 3 of the length of the second link.

[0027] In some embodiments, the axial center of the fifth slide groove may be located in one-third, particularly one-quarter, or one-fifth of the section of the first connecting rod near the common pin. The axial center of the sixth slide groove may be located in one-third, particularly one-quarter, or one-fifth of the section of the second connecting rod near the common pin. In particular, the fifth slide groove may be entirely located in one-third, particularly one-quarter, or one-fifth of the section of the first connecting rod near the common pin. The sixth slide groove may be entirely located in one-third, particularly one-quarter, or one-fifth of the section of the second connecting rod near the common pin.

[0028] In some embodiments, when the pressing head retracts, the first link and the second link can cross to form an X shape.

[0029] In some embodiments, the cardiopulmonary resuscitation device may also include a support for holding the compression device to at least partially reduce the pressure on the chest cavity due to the weight of the compression device itself.

[0030] In some embodiments, the support is configured to hold the compression device in an adjustable position, thereby allowing adjustment of the distance between the free end of the compression head and the chest cavity. In particular, the support itself can be configured to be height-adjustable, thereby allowing adjustment of the distance between the free end of the compression head and the chest cavity. Specifically, the support can be configured to be adjustable in position relative to the holding device, thereby allowing adjustment of the distance between the free end of the compression head and the chest cavity.

[0031] In some embodiments, the support may have a single-pole structure, a table lamp structure, or an archway structure.

[0032] In some embodiments, the cardiopulmonary resuscitation device may include a support plate for supporting the chest cavity, the support plate being configured with channels through which a fixation bandage passes, such that a portion of the support plate can be positioned between the fixation bandage and the chest cavity to prevent the chest cavity from being pulled forward by the fixation bandage and detached from the support plate.

[0033] In some embodiments, a suction cup may be fitted onto the free end of the compression head, the suction cup being used to draw the chest cavity along the retraction direction during the retraction of the compression head, so as to facilitate the chest cavity returning to its static original position. Attached Figure Description

[0034] The present disclosure will now be described in more detail with reference to the accompanying drawings and specific embodiments. The schematic drawings are briefly described below: Figure 1 This is a schematic diagram of chest compressions performed using a cardiopulmonary resuscitation device according to some embodiments of the present disclosure, wherein the solid line L1 shows the static outline of the chest cavity when no compressions are applied, and the dashed line L1... The instantaneous outline of the chest cavity at the point of deepest compression is shown; Figure 2 yes Figure 1 Enlarged view of the compression device and connecting components of a cardiopulmonary resuscitation (CPR) device; Figure 3 This is a schematic diagram of chest compressions performed using a cardiopulmonary resuscitation (CPR) device according to other embodiments of the present disclosure, wherein the CPR device includes a support plate configured to prevent the back of the chest cavity from being lifted forward by a fixation bandage and detached from the support plate when the compression head is extended. Figure 4 yes Figure 3 A partial enlarged view of the support plate of the cardiopulmonary resuscitation equipment in the image; Figure 5 This is a schematic diagram of chest compressions performed using a cardiopulmonary resuscitation device according to other embodiments of this disclosure; Figure 6 yes Figure 5 Enlarged view of the compression device and connecting components of a cardiopulmonary resuscitation (CPR) device; Figure 7 This is a schematic diagram of chest compressions performed using a cardiopulmonary resuscitation device according to other embodiments of this disclosure; Figure 8 yes Figure 7 Enlarged view of the compression device and connecting components of a cardiopulmonary resuscitation (CPR) device; Figure 9 This is a schematic diagram of chest compressions performed using a cardiopulmonary resuscitation device according to other embodiments of this disclosure; Figure 10 yes Figure 9 Enlarged view of the compression device and connecting components of a cardiopulmonary resuscitation (CPR) device; Figure 11 This is a schematic diagram of chest compressions performed using a cardiopulmonary resuscitation device according to other embodiments of this disclosure; Figure 12 This is a schematic diagram of chest compressions performed using a cardiopulmonary resuscitation device according to other embodiments of the present disclosure. Detailed Implementation

[0035] The present disclosure will now be described 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 disclosure more complete and to 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 further additional embodiments.

[0036] It should be understood that the terminology used herein is for describing specific embodiments only and is not intended to limit the scope of this disclosure. All terms used herein (including technical and scientific terms) 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.

[0037] In this document, spatial relation terms such as "up," "down," "left," "right," "front," "back," "high," and "low" are used to describe the relationship between one feature and another in the accompanying drawings. It should be understood that spatial relation terms include not only the orientation shown in the drawings but also different orientations of the device during use or operation. For example, when the device in the drawings is inverted, a feature previously described as "below" other features can now be described as "above" other features. The device can also be oriented in other ways (rotated 90 degrees or in other orientations), in which case the relative spatial relationships will be interpreted accordingly.

[0038] In this document, the term “A or B” includes both “A and B” and “A or B”, rather than exclusively including only “A” or only “B”, unless otherwise specified.

[0039] In this document, the terms "illustrative" or "exemplary" mean "used as an example, instance, or illustration," and not as a "model" to be precisely copied. Any implementation described herein by example is not necessarily to be construed as preferred or advantageous over other implementations. Furthermore, this disclosure is not limited to any stated or implied theory given in the foregoing technical field, background art, summary of the invention, or detailed description.

[0040] In this document, the term “substantially” means any minor variation caused by defects in design or manufacturing, tolerances of devices or components, environmental influences and / or other factors.

[0041] In this article, the term "partially" can refer to any proportion. For example, it can be greater than 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or even 100%, i.e., all.

[0042] Additionally, terms such as “first,” “second,” etc., may be used in this document for reference purposes only and are not intended to be limiting. For example, unless the context clearly indicates otherwise, the words “first,” “second,” and other such numerical terms relating to structures or elements do not imply order or sequence.

[0043] This disclosure provides a cardiopulmonary resuscitation (CPR) device for performing chest compressions, the CPR device comprising: a compression device including a compression head; a fixation bandage capable of surrounding the chest cavity and having a first end segment and a second end segment opposite to the first end segment in its longitudinal extension; and a coupling assembly for connecting the compression head of the compression device to the first and second end segments of the fixation bandage, such that when the CPR device performs compressions, the first and second end segments of the fixation bandage are linked with the compression head of the compression device, wherein the first and second end segments of the fixation bandage are movable toward each other along their respective predetermined motion trajectories when the compression head is extended and away from each other when the compression head is retracted, so as to alternately achieve full-circumferential compression and full-circumferential release of the chest cavity through the linkage.

[0044] Compared to existing cardiopulmonary resuscitation (CPR) devices, the CPR device for chest compressions according to this disclosure offers the following technical advantages: By connecting components, the first and second end sections of the fixation bandage are linked to the compression head of the compression device, and the first and second end sections of the fixation bandage can contract and relax along their respective predetermined trajectories, achieving full-circumferential compression and release of the chest cavity. Thus, during chest compression, the chest cavity contracts inward around its entire circumference, which helps to create a relatively high positive pressure within the chest cavity, thereby facilitating a relatively large forward blood flow in the vessels; during chest release, the compression kinetic energy stored within the chest cavity and the chest cavity's own elasticity simultaneously drive the chest cavity to expand outward synchronously around its entire circumference, which helps to create a relatively high negative pressure within the chest cavity, thereby improving venous return and myocardial perfusion. An improved compression cycle can be achieved through alternating high positive and high negative pressure on the chest cavity, thereby improving the CPR efficiency of the CPR device.

[0045] This will be discussed below with the help of Figures 1 to 12 To elaborate further. It should be noted here that, for ease of explanation and understanding, in... Figures 1 to 12 In the accompanying drawings, the same reference numerals indicate the same parts or parts with the same function.

[0046] Figure 1 This diagram illustrates chest compressions performed on the chest cavity 2 using a cardiopulmonary resuscitation device 1 according to some embodiments of the present disclosure. The solid line L1 shows the static outline of the chest cavity 2 when no compressions are applied, while the dashed line L1... The instantaneous outline of the thoracic cavity at the point of deepest compression is shown. Figure 2 Show Figure 1 Enlarged view of the compression device and connecting component 50 of the cardiopulmonary resuscitation device 1.

[0047] like Figure 1 and Figure 2As shown, the cardiopulmonary resuscitation device 1 for performing chest compressions 2 according to this disclosure includes a compression device 10 and a fixation bandage 20. The fixation bandage 20 is capable of surrounding 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 disposed in the body 101, and a compression head 102 disposed in the body 101. Figure 1 The actuator is not shown in the diagram. The actuator can be electrically driven or driven by compressed gas, such as compressed air, and is capable of driving the pressing head 102 along the longitudinal direction of the body 101 (in this case, the forward direction) in an extended position (not shown) and a retracted position (in the extended position). Figure 1 The compression device 10 (shown in the diagram) extends and retracts between itself to perform single-point compressions on the chest cavity 2, thereby causing the fixation bandage 20 to move in tandem. For this purpose, the compression device 10 is equipped with a connecting assembly 50, which connects the compression head 102 of the compression device 10 to the first end section 201 and the second end section 202 of the fixation bandage 20, such that when compressions are performed by the cardiopulmonary resuscitation device 1, the first end section 201 and the second end section 202 of the fixation bandage 20 move in tandem with the compression head 102 of the compression device 10. The first end section 201 and the second end section 202 of the fixation bandage 20 can move towards each other along their respective predetermined trajectories when the compression head extends and away from each other when the compression head retracts, so as to alternately achieve full-circumference compression of the chest cavity 2 (as shown by the dotted line L1) through this linkage. (as shown) and full-cycle release (as shown by solid line L1).

[0048] In some implementations, such as Figure 1 and Figure 2 As shown, the connecting component 50 can be configured such that the predetermined movement trajectories of the first end segment 201 and the second end segment 202 of the fixing bandage 20 are symmetrical about the central axis L2 of the pressing head 102, so that the first end segment 201 and the second end segment 202 of the fixing bandage 20 can move synchronously and symmetrically about the central axis of the pressing head along their respective predetermined movement trajectories. For this purpose, the connecting component 50 can be configured to be symmetrical about the central axis L2 of the pressing head 102. In this 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.

[0049] In some embodiments, the connecting assembly 50 may include a first link 501 and a second link 502. The first link 501 is connected to the pressing head 102 on one side and to a first end section 201 of the fixing bandage 20 on the other side, and is directly or indirectly supported by the body of the pressing device 10. The second link 502 is connected to the pressing head 102 on one side and to a second end section 202 of the fixing bandage 20 on the other side, and is directly or indirectly supported by the body of the pressing device 10. In some embodiments, the first link 501 and the second link 502 may be connected to the pressing head 102 by means of a common pin 504. Alternatively, two pins 504 arranged side by side in the lateral direction may be provided on the pressing head 102, each pin 504 being assigned to one of the links of the first link 501 and the second link 502. In some embodiments, the first link 501 and the second link 502 are rotatable relative to the pressing head 102. The connecting assembly 50 may include a fixing rod 503, which is an integral part of the body of the pressing device 10 or fixed to the body of the pressing device 10 as a separate component. The first connecting rod 501 and the second connecting rod 502 may be supported by the fixing rod 503.

[0050] In this disclosure, the term "fixed rod 503" can be broadly understood as a component that provides a support point for the first link 501 and the second link 502, and it can be configured as a rod-shaped component (such as...). Figures 1 to 12 As shown in the diagram, the fixing rod 503 can be fixed to the body of the pressing device 10 as a separate component. However, it should be understood that the fixing rod 503 can also be constructed as a non-rod-shaped component, for example, it can include two separate fixing sections, and can be an integral part of the body of the pressing device 10. In this disclosure, the term "connection" can be broadly understood as a connection that produces linkage, which can be a direct connection or an indirect connection.

[0051] Specifically, such as Figure 1 and Figure 2As shown, the connecting assembly 50 of the cardiopulmonary resuscitation device 1 may include a first link 501, a second link 502, and a fixing rod 503, which are pivotally connected to each other to form a closed structure, for example, a closed triangular structure. Here, the fixing rod 503 is fixed to the body of the compression device 10 and provides support for the first link 501 and the second link 502. The first link 501 connects the compression head 102 to the first end section 201 of the fixation bandage 20. The second link 502 connects the compression head 102 to the second end section 202 of the fixation bandage 20. The first link 501 and the second link 502 are connected to the compression head 102 by means of a common pin 504 (alternately, two pins 504 arranged side by side in the lateral direction may be provided on the compression head 102, each pin 504 being assigned to one of the links of the first link 501 and the second link 502). This causes the first link 501 and the second link 502 to pivot when compressions are performed by the cardiopulmonary resuscitation device 1, thereby causing the first end section 201 and the second end section 202 of the fixation bandage 20 to move toward each other along their respective predetermined motion trajectories when the compression head 102 is extended and away from each other when the compression head 102 is retracted. Therefore, a first slide groove 505 and a first sliding member 507 that can slide in the first slide groove 505 can be provided in the fixing rod 503 of the connecting assembly 50. A second slide groove 506 and a second sliding member 508 that can slide in the second slide groove 506 can also be provided. 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 constructed, for example, as sliders or pins that mate with the slide grooves, and these sliders or pins can be pivotally connected to the corresponding connecting rods. Furthermore, a common pin 504 can be provided on the central axis L2 of the pressing head 102.

[0052] In some implementations, the cardiopulmonary resuscitation device 1 may include multiple coupling components 50, such as two coupling components 50. For example, in Figure 1 and Figure 2 In the embodiment shown, the pressing device 10 is offset from... Figure 1Another connecting component 50 (not shown) may be provided on the other side of the connecting component 50 shown. These two connecting components 50 may be arranged opposite each other, particularly symmetrically, with respect to the radial direction of the pressing head 102, for example, with respect to the diameter of the pressing head 102. The first slider 507 may be configured as a common pin in one of the first grooves 505 of the two connecting components 50, and may slide synchronously in the first grooves 505 of the two connecting components 50. The second slider 508 may be configured as a common pin in one of the second grooves 506 of the two connecting components 50, and may slide synchronously in the second grooves 506 of the two connecting components 50. In this case, the first end section 201 of the fixing bandage 20 may be directly connected to the first slider 507 and indirectly connected to the first link 501, thereby enabling linkage with the pressing head 102. Similarly, the second end section 201 of the fixing bandage 20 may be directly connected to the second slider 508 and indirectly connected to the second link 502, thereby enabling linkage with the pressing head 102.

[0053] In some implementations, such as Figure 1 and Figure 2 As shown, the first groove 505 and the second groove 506 can be configured to extend linearly in the lateral direction x of the pressing device 10. Thus, the first end segment 201 and the second end segment 202 of the fixation bandage 20 can contract and expand along a predetermined linear motion trajectory. It should be noted that, as discovered by the inventors and confirmed through testing, if the first end segment 201 and the second end segment 202 of the fixation bandage 20 are lifted too high forward during the extension and retraction movement of the pressing head 102 due to excessive pivoting of the first link 501 and the second link 502, this could cause the patient's chest cavity 2 to be pulled up from its support surface by the fixation bandage 20. Therefore, as... Figure 1 and Figure 2 As shown, the inventors cleverly set the first groove 505 and the second groove 506 to extend in a straight line with respect to the lateral direction x of the pressing device 10. Thus, the contraction trajectory of the first end section 201 and the second end section 202 of the fixed bandage 20 is the lateral direction x of the pressing device 10, which is the horizontal direction. This can prevent the patient's chest cavity 2 back from being pulled forward too high by the fixed bandage 20 and detaching from its support surface.

[0054] In some embodiments, the axial center Z1 of the first groove 505 and the axial center Z2 of the second groove 506 may each be located in one-third, particularly one-quarter, or one-fifth of the segment of the fixed rod 503 near its free end. In particular, the first groove 505 and the second groove 506 may each be completely located in one-third, particularly one-quarter, or one-fifth of the segment of the fixed rod 503 near its free end.

[0055] 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 disposed on the support plate 30. The bracket 40 is configured to hold the compression device 10 to at least partially reduce the pressure on the chest cavity 2 due to the weight of the compression device 10 itself. By providing a bracket 40 for supporting the compression device 10, the pressure on the patient's chest cavity 2 due to 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 resulting potential static sternal displacement, but also helps the patient's chest cavity 2 to fully release or recoil, thereby improving the cardiopulmonary resuscitation efficiency of the cardiopulmonary resuscitation device 1.

[0056] In some embodiments, the support 40 can be configured to positionally hold the compression device 10, thereby enabling adjustment of the distance between the free end 103 of the compression head 102 of the compression device 10 and the chest cavity 2. In particular, the support 40 itself can be configured to be height-adjustable. Specifically, the support 40 can be configured to adjust its position relative to the compression device 10, thereby enabling adjustment of the distance between the free end 103 of the compression head 102 of the compression device 10 and the chest cavity 2. Figure 1As shown, the support 40 can have a single-bar structure. The single-bar structure includes a horizontal bar 42 for supporting the compression device 10 and two vertical bars 41 for supporting the horizontal bar 42. Here, the horizontal bar 42 is configured to be vertically height-adjustably fixed relative to the vertical bars 41, and / or configured to be adjustable in position relative to the compression device 10, thereby allowing adjustment of the distance between the compression head 102 of the compression device 10 and the chest cavity 2. With the support 40 of this disclosure, the compression device 10 of the cardiopulmonary resuscitation device 1 can be held at a desired distance in front of the patient's chest cavity 2 simply by means of the support 40; that is, it is no longer necessary to fix it to the patient's chest cavity 2 by means of a fixation bandage 20, and it is also no longer necessary to have a base for increasing the contact area between the compression device 10 and the chest cavity 2. This not only prevents the fixation bandage 20 from compressing or constricting the patient's chest cavity 2 before the compression device 10 begins compressions, but also simplifies the compression device 10 and thus reduces its weight and the resulting pressure on the patient's chest cavity, thereby facilitating full release or rebound of the chest cavity 2 during the release phase. Furthermore, by adjusting the distance between the compression head 102 of the compression device 10 and the chest cavity 2 using the bracket 40 according to this disclosure, the compression head 102 can be configured such that it contacts the chest cavity 2 when extended and separates from it when retracted. This substantially avoids pressure on the patient's chest cavity 2 due to the weight of the compression device 10. This not only helps reduce the risk of static sternal displacement in the patient but also facilitates full release of the chest cavity 2 during the release phase, thereby improving the cardiopulmonary resuscitation efficiency of the cardiopulmonary resuscitation device 1.

[0057] In some embodiments, a suction cup 108 may be fitted onto the free end 103 of the compression head 102. The suction cup 108 is used to draw the pleural cavity 2 along the retraction direction during the retraction of the compression head 102, so that the pleural cavity 2 returns to its static position. In this way, during the retraction of the compression head 102, the suction cup 108 fitted onto the free end 103 of the compression head 102 can draw the anterior part of the pleural cavity 2 up a distance along the retraction direction, which helps to create a relatively high negative pressure within the pleural cavity 2, thereby improving venous return and myocardial perfusion. Furthermore, instead of the suction cup 108, a protective pad 109 may also be fitted onto the free end 103 of the compression head 102 (see [link to relevant documentation]). Figure 11 ).

[0058] See also Figure 1 and Figure 2When the compression head 102 is in the retracted position, the first end section 201 and the second end section 202 of the fixation bandage 20 are spaced apart by a first distance D1 in the lateral direction x (here, the horizontal direction) of the compression device 10, and spaced apart by a second distance D2 in the longitudinal direction z (here, the forward direction) of the body 101 from the first end face S1 of the compression device 10 facing the chest cavity 2. By appropriately setting the data range of the first distance D1 and the second distance D2, such as the first to third sets of data ranges to be described below, the first end section 201 and the second end section 202 of the fixation bandage 20 can contract and relax along their respective predetermined motion trajectories when compressions are performed by the cardiopulmonary resuscitation device 1, so as to achieve successive full-circumferential compression and full-circumferential release around the chest cavity 2 during compressions.

[0059] In the first set of data ranges, the first distance D1 can be set between 100mm and 170mm, and the second distance D2 can be set between 35mm and 60mm. Preferably, the first distance D1 can be set between 100mm and 130mm, and / or the second distance D2 can be set between 40mm and 60mm. More preferably, the first distance D1 can be set between 114mm and 124mm, and / or the second distance D2 can be set between 37mm and 47mm. In the second set of data ranges, the first distance D1 can be set between 117mm and 121mm, and the second distance D2 can be set between 40mm and 44mm. Preferably, the first distance D1 can be set to 119mm, and / or the second distance D2 can be set to 42mm. In the third set of data ranges, the first distance D1 can be set between 105mm and 115mm, and the second distance D2 can be set between 50mm and 60mm. 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. Furthermore, a suction cup 108 or a protective pad 109 may be fitted onto 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.

[0060] It has been confirmed that when the first distance D1 and the second distance D2 are within the range of the first set of data, during the compressions performed by the cardiopulmonary resuscitation device 1, the chest cavity 2 will not exhibit localized outward expansion. In other words, the width of the chest cavity 2 in both the horizontal and forward directions does not increase; instead, it remains as if... Figure 1As shown, the width of the chest cavity 2 is reduced. In some cases, the width in the horizontal direction can be reduced by 5% to 8%, for example 6% or 7%, and / or the width in the forward direction 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 set of data ranges, the rate of change of the cross-sectional area of ​​the chest cavity 2 during chest 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 good compression effect. In this document, "cross-sectional area of ​​the chest cavity 2" can be understood as the cross-sectional area of ​​the chest cavity 2 in the direction of compressions performed by the cardiopulmonary resuscitation device 1. Figure 1 and Figure 2 The cross-sectional area of ​​the plane formed by the x-axis and z-axis shown, for example Figure 1 The solid line L1 or the dashed line L1 in the middle The cross-sectional area of ​​the pleural cavity 2 surrounding it.

[0061] like Figure 1 and Figure 2 As shown, in the retracted position of the compression head 102, the free end 103 of the compression head 102 can extend beyond the first end face S1 of the compression device 10 facing the chest cavity 2 by a first length T1. That is, in the retracted position of the compression head 102, the compression head 102 protrudes beyond the first end face S1 by a first length T1. The first length T1 can be between 4 mm and 6 mm. The purpose of the first length T1 is to allow it to adapt to the anterior contour of the patient's chest cavity 2 when the compression device 10 is placed on the anterior side of the patient's chest cavity 2, thereby reducing the ineffective compression stroke of the compression head 102. Furthermore, in the extended position of the compression head 102, the free end 103 of the compression head 102 can extend beyond the first end face S1 by a second length. The second length is greater than the first length. Here, the second length can be between 50 mm and 60 mm. In this document, the second length can also be understood as the compression depth of the compression head 102. Furthermore, a suction cup 108 or a protective pad 109 may be fitted onto 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 first length T1.

[0062] In some embodiments, the effective length of the fixation bandage 20 can be set to be between 50cm and 125cm, for example, between 45cm and 120cm, for example, between 60cm and 110cm, for example, approximately 80cm or approximately 90cm, and / or the width of the fixation bandage 20 can be set to be between 80mm and 100mm, for example, between 85mm and 95mm. Here, the effective length of the fixation bandage 20 can be understood as the longitudinal extension length between the first end segment 201 and the second end segment 202 of the fixation bandage 20. The total length of the fixation bandage 20 can be approximately equal to or greater than the effective length, for example, 30cm to 40cm greater than the effective length. That is, the total length of the fixation bandage 20 can be set to be between 90cm and 155cm, for example, between 95cm and 150cm, for example, between 100cm and 140cm, for example, approximately 110cm or approximately 120cm.

[0063] In some implementations, such as Figure 2 As shown, the connecting assembly 50 can be configured such that the angle α1 formed by the first end section 201 and the second end section 202 of the securing bandage 20 with the common pin 504 during the compression of the cardiopulmonary resuscitation device 1 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°.

[0064] Figure 3 A schematic diagram is shown of chest compressions performed 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 fixation bandage 20 and dislodging from the support plate 30 when the compression head 102 is extended. Figure 4 Show Figure 3 A partial enlarged view of the support plate 30 of the cardiopulmonary resuscitation device 1.

[0065] exist Figure 3 and Figure 4 In the embodiments shown, with Figure 1 and Figure 2 The implementation method differs from that in the previous one. The support plate 30 of the cardiopulmonary resuscitation device 1, used to support the chest cavity 2, is constructed with a channel 33 through which the fixation bandage 20 passes, allowing a portion of the support plate 30 to be positioned between the fixation bandage 20 and the chest cavity 2, thus preventing the chest cavity 2 from being pulled forward by the fixation bandage 20 and detaching from the support plate 30. Specifically, as... Figure 4As shown more clearly, the support plate 30 may include a flat plate 31 for supporting the thoracic cavity 2 and a base 32 for supporting the flat plate 31. A channel 33 is formed between the flat plate 31 and the base 32 for the fixation bandage 20 to pass through, and the fixation bandage 20 can extend through the channel 33. Thus, the flat plate 31 of the support plate 30 can be positioned between the fixation bandage 20 and the thoracic cavity 2 to prevent the thoracic cavity 2 from being pulled forward by the fixation bandage 20 and detached from the support plate 30.

[0066] Figure 5 A schematic diagram is shown of chest compressions performed on the chest cavity 2 using a cardiopulmonary resuscitation device 1 according to other embodiments of the present disclosure. Figure 6 Show Figure 5 Enlarged view of the compression device 10 and the connecting component 50 of the cardiopulmonary resuscitation device 1.

[0067] exist Figure 5 and Figure 6 In the embodiments shown, with Figure 1 and Figure 2 The implementation differs from the previous one in that the first groove 505 and the second groove 506 are configured to extend in an arc shape, with the outer ends of the first groove and the second groove oriented toward the direction of extension of the pressing head. It should be understood that the outer ends of the first groove 505 and the second groove 506 can also be oriented in another direction as needed. Thus, the first end section 201 and the second end section 202 of the fixing bandage 20 can contract and expand along a predetermined arc-shaped movement trajectory. For this purpose, the fixing rod 503 can, for example, be constructed as an arc-shaped rod. The degree of curvature of the arc-shaped rod can be set and adjusted according to the actual pressing requirements. In particular, the angle α2 formed by the axial tangent of the outer contour of the arc-shaped rod and the transverse direction x of the pressing device 10 can be set between 0° and 60°, especially 0° to 55°, 0° to 50°, or 0° to 45°. By configuring the first groove 505 and the second groove 506 to extend in an arc shape, compared to... Figures 1 to 4 In the embodiment, the linearly extending first groove 505 and second groove 506 allow the first sliding member 507 and the second sliding member 508 to slide relatively smoothly within their respective grooves when the cardiopulmonary resuscitation device 1 performs chest compressions. Furthermore, in the extended position of the compression head 102, the sliding members can slide to a position relatively far from the front of the chest cavity 2, which facilitates the formation of a relatively large positive pressure within the chest cavity 2. Additionally, as... Figure 3 and Figure 4 As shown, the arrangement of other components of the cardiopulmonary resuscitation device 1 can be similar to that of other devices. Figure 1 and Figure 2 The arrangement and implementation methods will not be described in detail here.

[0068] Figure 7A schematic diagram is shown of chest compressions performed on the chest cavity 2 using a cardiopulmonary resuscitation device 1 according to other embodiments of the present disclosure. Figure 8 Show Figure 7 Enlarged view of the compression device 10 and the connecting component 50 of the cardiopulmonary resuscitation device 1.

[0069] exist Figure 7 and Figure 8 In the embodiments shown, with Figure 1 and Figure 2 The implementation differs in that a third slide groove 513 and a third sliding member 523 that can slide in the third slide groove 513 are provided in the first connecting rod 501. The third sliding member 523 is pivotally connected to the fixed rod 503. A fourth slide groove 514 and a fourth sliding member 524 that can slide in the fourth slide groove 514 are provided in the second connecting rod 502. The fourth sliding member 524 is 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 slide groove 513 and the fourth slide groove 514 can be configured symmetrically about the central axis L2 of the pressing head 102. The third sliding member 523 and the fourth sliding member 524 can, for example, be constructed as sliders or pins that mate with the corresponding slide grooves, and the sliders or pins can be pivotally connected to the fixed rod 503. Furthermore, the fixing rod 503 can be constructed as a connecting rod and can be configured to extend linearly in the lateral direction x about the pressing device 10.

[0070] In some embodiments, the axial center Z3 of the third slide groove 513 may be located in the middle one-third section, particularly the middle fifth section, of the first connecting rod 501, and / or the axial center Z4 of the fourth slide groove 514 may be located in the middle one-third section, particularly the middle fifth section, of the second connecting rod 502. In particular, the third slide groove 513 may be entirely located in the middle one-third section, particularly the middle fifth section, of the first connecting rod 501. In particular, the fourth slide groove 514 may be entirely located in the middle one-third section, particularly the middle fifth section, of the second connecting rod 502.

[0071] In addition, such as Figure 7 and Figure 8 As shown, the arrangement of other components of the cardiopulmonary resuscitation device 1 can be similar to that of other devices. Figure 1 and Figure 2 The arrangement and implementation methods will not be described in detail here.

[0072] Figure 9 A schematic diagram is shown of chest compressions performed on the chest cavity 2 using a cardiopulmonary resuscitation device 1 according to other embodiments of the present disclosure. Figure 10 Show Figure 9Enlarged view of the compression device 10 and the connecting component 50 of the cardiopulmonary resuscitation device 1.

[0073] exist Figure 9 and Figure 10 In the embodiments shown, with Figure 1 and Figure 2 The implementation differs in that a fifth slide groove is provided in the first link 501, and a sixth slide groove can be provided in the second link 502. A common pin 504 passes through the fifth and sixth slide grooves and can slide in the fifth slide groove 515 and the sixth slide groove 516. Here, the first link 501 and the second link 502 can intersect to form an X shape. The fifth slide groove 515 and the sixth slide groove 516 can be configured symmetrically about the central axis L2 of the pressing head 102. Furthermore, the fixing rod 503 can be constructed as a connecting rod and can be configured to extend linearly in the lateral direction x about the pressing device 10.

[0074] In some embodiments, the first link 501 may be hinged to the fixed rod 503, and the second link 502 may be hinged to the fixed rod 503. The first end segment 201 of the fixing bandage 20 may be connected to the first end of the first link 501, and the second end segment 202 of the fixing bandage 20 may be connected to the first end of the second link 502. Furthermore, the length of the first segment of the first link 501 from its first end to its hinge point with the fixed rod 503 may not exceed one-third of the length of the first link 501, and the length of the first segment of the second link 502 from its first end to its hinge point with the fixed rod 503 may not exceed one-third of the length of the second link 502.

[0075] In some embodiments, the axial center Z5 of the fifth groove 515 may be located in one-third, particularly one-quarter, or one-fifth of the first connecting rod 501 near the common pin 504. The axial center Z6 of the sixth groove 516 may be located in one-third, particularly one-quarter, or one-fifth of the second connecting rod 502 near the common pin 504. In particular, the fifth groove 515 may be entirely located in one-third, particularly one-quarter, or one-fifth of the first connecting rod 501 near the common pin 504. The sixth groove 516 may be entirely located in one-third, particularly one-quarter, or one-fifth of the second connecting rod 502 near the common pin 504.

[0076] In addition, such as Figure 9 and Figure 10 As shown, the arrangement of other components of the cardiopulmonary resuscitation device 1 can be similar to that of other devices. Figure 1 and Figure 2 The arrangement and implementation methods will not be described in detail here.

[0077] Figure 11 A schematic diagram illustrates chest compressions performed on the chest cavity 2 using a cardiopulmonary resuscitation device 1 according to other embodiments of this disclosure. Figure 11 In the embodiments shown, with Figures 1 to 10 Unlike the previous implementation, the support 40 is not a single-bar structure, but a lamp-type structure. The lamp-type structure includes a horizontal bar 42 for supporting the compression device 10 and a vertical bar 41 for supporting the horizontal bar 42. Here, the horizontal bar 42 is configured to be vertically height-adjustably fixed relative to the vertical bar 41, and / or configured to be adjustable in position relative to the compression device 10, thereby allowing adjustment of the distance between the compression head 102 of the compression device 10 and the chest cavity 2. Furthermore, instead of the suction cup 108, a protective pad 109 is fitted onto the free end 103 of the compression head 102. Additionally, as... Figure 11 As shown, the arrangement of other components of the cardiopulmonary resuscitation device 1 can be similar to that of other devices. Figure 1 and Figure 2 The arrangement and implementation methods will not be described in detail here.

[0078] Figure 12 This is a schematic diagram illustrating chest compressions performed using a cardiopulmonary resuscitation device 1 according to other embodiments of this disclosure. Figure 12 In the embodiments shown, with Figures 1 to 11 The implementation differs in that the support 40 does not have a single-bar structure, but rather an arch-shaped structure. The arch-shaped structure includes an arch-shaped support rod for supporting the compression device 10. Here, the arch-shaped support rod is configured to be adjustable in position relative to the compression device 10, thereby allowing adjustment of the distance between the compression head 102 of the compression device 10 and the chest cavity 2. Furthermore, as... Figure 12 As shown, the arrangement of other components of the cardiopulmonary resuscitation device 1 can be similar to that of other devices. Figure 1 and Figure 2 The arrangement and implementation methods will not be described in detail here.

[0079] While exemplary embodiments of this disclosure have been described, those skilled in the art will understand that various changes and modifications can be made to the exemplary embodiments of this disclosure without departing from the spirit and scope thereof. Therefore, all changes and modifications are included within the scope of protection of this disclosure as defined by the claims. This disclosure is defined by the appended claims, and equivalents of those claims are also included.

Claims

1. A cardiopulmonary resuscitation (CPR) device for performing chest compressions, the CPR device comprising: The pressing device includes a body, a pressing head disposed in the body, and a driver, the driver being able to drive the pressing head to extend and retract along the longitudinal direction of the body between an extended position and a retracted position. and A fixation bandage, the fixation bandage being able to wrap around the chest cavity and having a first end segment and a second end segment opposite to the first end segment in its longitudinal extension; The cardiopulmonary resuscitation device is characterized in that it further includes: A connecting assembly is provided for connecting the compression head of the compression device to a first end section and a second end section of the fixation bandage, such that when compressions are performed by the cardiopulmonary resuscitation device, the first end section and the second end section of the fixation bandage can be linked with the compression head of the compression device, wherein the first end section and the second end section of the fixation bandage can move towards each other along their respective predetermined movement trajectories when the compression head is extended and move away from each other when the compression head is retracted, so as to achieve full-circumferential compression and full-circumferential release of the chest cavity through the linkage. The connecting assembly includes a first link and a second link. The first link is connected to the pressing head on one side and to the first end section of the fixing bandage on the other side, and is directly or indirectly supported by the body of the pressing device. The second link is connected to the pressing head on one side and to the second end section of the fixing bandage on the other side, and is directly or indirectly supported by the body of the pressing device. The connecting assembly includes a fixing rod, which is an integral part of the body of the pressing device or is fixed to the body of the pressing device as a separate component; The fixing rod is provided with a first sliding groove and a first sliding member that can slide in the first sliding groove, and a second sliding groove and a second sliding member that can slide in the second sliding groove are also provided. The first sliding member is pivotally connected to the first connecting rod. The first end section of the fixing bandage is directly connected to the first sliding member, and the second sliding member is pivotally connected to the second connecting rod. The second end section of the fixing bandage is directly connected to the second sliding member.

2. The cardiopulmonary resuscitation device for performing chest compressions according to claim 1, characterized in that, The connecting component is configured such that the predetermined movement trajectories of the first and second end segments of the fixation bandage are symmetrical about the central axis of the pressure head, so that the first and second end segments of the fixation bandage can move synchronously and symmetrically about the central axis of the pressure head along their respective predetermined movement trajectories.

3. The cardiopulmonary resuscitation device for performing chest compressions according to claim 2, characterized in that, The connecting assembly is configured to be symmetrical about the central axis of the press head.

4. The cardiopulmonary resuscitation device for performing chest compressions according to any one of claims 1 to 3, characterized in that, The first and second links are connected to the press head via a common pin.

5. The cardiopulmonary resuscitation device for performing chest compressions according to any one of claims 1 to 3, characterized in that, The first link and the second link can rotate relative to the pressing head, respectively.

6. The cardiopulmonary resuscitation device for performing chest compressions according to any one of claims 1 to 3, characterized in that, The first and second slides are configured to extend in a straight line in the lateral direction of the pressing device.

7. The cardiopulmonary resuscitation device for performing chest compressions according to any one of claims 1 to 3, characterized in that, The first and second slides are configured to extend in an arc shape, wherein the outer ends of the first and second slides are oriented toward the direction of extension of the pressing head.

8. The cardiopulmonary resuscitation device for performing chest compressions according to any one of claims 1 to 3, characterized in that, The axial center of the first groove and the axial center of the second groove are each located in one-third of the section of the fixed rod near the free end of the fixed rod.

9. A cardiopulmonary resuscitation (CPR) device for performing chest compressions, the CPR device comprising: The pressing device includes a body, a pressing head disposed in the body, and a driver, the driver being able to drive the pressing head to extend and retract along the longitudinal direction of the body between an extended position and a retracted position. and A fixation bandage, the fixation bandage being able to wrap around the chest cavity and having a first end segment and a second end segment opposite to the first end segment in its longitudinal extension; The cardiopulmonary resuscitation device is characterized in that it further includes: A connecting assembly is provided for connecting the compression head of the compression device to a first end section and a second end section of the fixation bandage, such that when compressions are performed by the cardiopulmonary resuscitation device, the first end section and the second end section of the fixation bandage can be linked with the compression head of the compression device, wherein the first end section and the second end section of the fixation bandage can move towards each other along their respective predetermined movement trajectories when the compression head is extended and move away from each other when the compression head is retracted, so as to achieve full-circumferential compression and full-circumferential release of the chest cavity through the linkage. The connecting assembly includes a first link and a second link. The first link is connected to the pressing head on one side and to the first end section of the fixing bandage on the other side, and is directly or indirectly supported by the body of the pressing device. The second link is connected to the pressing head on one side and to the second end section of the fixing bandage on the other side, and is directly or indirectly supported by the body of the pressing device. The connecting assembly includes a fixing rod, which is an integral part of the body of the pressing device or is fixed to the body of the pressing device as a separate component; The first connecting rod is provided with a third sliding groove and a third sliding member that can slide in the third sliding groove. The third sliding member is pivotally connected to the fixed rod. The second connecting rod is provided with a fourth sliding groove and a fourth sliding member that can slide in the fourth sliding groove. The fourth sliding member is pivotally connected to the fixed rod.

10. The cardiopulmonary resuscitation device for performing chest compressions according to claim 9, characterized in that, The first link is hinged to the pressing head, and the second link is hinged to the pressing head.

11. The cardiopulmonary resuscitation device for performing chest compressions according to claim 9, characterized in that, The axial center of the third slide is located in the middle third section of the first connecting rod, and / or the axial center of the fourth slide is located in the middle third section of the second connecting rod.

12. A cardiopulmonary resuscitation (CPR) device for performing chest compressions, the CPR device comprising: The pressing device includes a body, a pressing head disposed in the body, and a driver, the driver being able to drive the pressing head to extend and retract along the longitudinal direction of the body between an extended position and a retracted position. and A fixation bandage, the fixation bandage being able to wrap around the chest cavity and having a first end segment and a second end segment opposite to the first end segment in its longitudinal extension; The cardiopulmonary resuscitation device is characterized in that it further includes: A connecting assembly is provided for connecting the compression head of the compression device to a first end section and a second end section of the fixation bandage, such that when compressions are performed by the cardiopulmonary resuscitation device, the first end section and the second end section of the fixation bandage can be linked with the compression head of the compression device, wherein the first end section and the second end section of the fixation bandage can move towards each other along their respective predetermined movement trajectories when the compression head is extended and move away from each other when the compression head is retracted, so as to achieve full-circumferential compression and full-circumferential release of the chest cavity through the linkage. The connecting assembly includes a first link and a second link. The first link is connected to the pressing head on one side and to the first end section of the fixing bandage on the other side, and is directly or indirectly supported by the body of the pressing device. The second link is connected to the pressing head on one side and to the second end section of the fixing bandage on the other side, and is directly or indirectly supported by the body of the pressing device. The connecting assembly includes a fixing rod, which is an integral part of the body of the pressing device or is fixed to the body of the pressing device as a separate component; 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 and sixth sliding grooves and is able to slide in the fifth and sixth sliding grooves. The first link is hinged to the fixed link, and the second link is hinged to the fixed link.

13. The cardiopulmonary resuscitation device for performing chest compressions according to claim 12, characterized in that, The first end section of the fixing bandage is connected to the first end of the first link, and the second end section of the fixing bandage is connected to the first end of the second link.

14. The cardiopulmonary resuscitation device for performing chest compressions according to claim 13, characterized in that, The length of the first link from its first end to its hinge point with the fixed rod is no more than 1 / 3 of the length of the first link, and the length of the second link from its first end to its hinge point with the fixed rod is no more than 1 / 3 of the length of the second link.

15. The cardiopulmonary resuscitation device for performing chest compressions according to claim 12, characterized in that, The axial center of the fifth slide groove is located in one-third of the section of the first connecting rod near the common pin, and / or the axial center of the sixth slide groove is located in one-third of the section of the second connecting rod near the common pin.

16. The cardiopulmonary resuscitation device for performing chest compressions according to any one of claims 12 to 15, 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.

17. The cardiopulmonary resuscitation device for performing chest compressions according to claim 1, 9, or 12, characterized in that, The cardiopulmonary resuscitation device also includes a support for holding the compression device to at least partially reduce the pressure on the chest cavity due to the weight of the compression device itself.

18. The cardiopulmonary resuscitation device for performing chest compressions according to claim 17, characterized in that, The support is configured to hold the compression device in an adjustable position, thereby allowing adjustment of the distance between the free end of the compression head of the compression device and the chest cavity.

19. The cardiopulmonary resuscitation device for performing chest compressions according to claim 17, characterized in that, The support structure can be a single-pole structure, a table lamp structure, or an archway structure.

20. The cardiopulmonary resuscitation device for performing chest compressions according to claim 1, 9, or 12, characterized in that, The cardiopulmonary resuscitation device includes a support plate for supporting the chest cavity, the support plate being configured with a channel for a fixation bandage to pass through, such that a portion of the support plate can be positioned between the fixation bandage and the chest cavity to prevent the chest cavity from being pulled forward by the fixation bandage and detached from the support plate.

21. The cardiopulmonary resuscitation device for performing chest compressions according to claim 1, 9, or 12, characterized in that, A suction cup is fitted onto the free end of the pressing head. The suction cup is used to draw the chest cavity along the retraction direction during the retraction of the pressing head, so that the chest cavity can return to its static original position.

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