Backboard assembly and cardio-pulmonary resuscitation machine

Abstract

The invention discloses a back plate assembly and a cardio-pulmonary resuscitation machine. The back plate assembly comprises a main body, a first guide piece, a second guide piece, a first mounting seat and a second mounting seat; the main body is connected between the first guide piece and the second guide piece in the first direction; the first mounting seat is movably connected to the first guide part and is used for connecting a first support arm of the cardio-pulmonary resuscitation machine; the second mounting seat is movably connected to the second guide piece and is used for being connected with a second support arm of the cardio-pulmonary resuscitation machine; the first support arm and the second support arm can rotate relative to a main machine of the cardio-pulmonary resuscitation machine; the first mounting seat can reciprocate along a first direction under the action of external force so as to be close to or far away from the main body; the second mounting base can reciprocate in the first direction under the action of external force so as to be close to or away from the main body. The external chest compression device can adapt to the chest positions of patients with different body types, and the accuracy and stability of external chest compression are improved.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and particularly relates to a backplate assembly and a cardiopulmonary resuscitation machine. Background Technology

[0002] Currently, cardiopulmonary resuscitation (CPR) machines are emergency equipment for patients experiencing cardiac arrest. They help patients restore spontaneous breathing and circulation through external chest compressions, and some products use high-pressure gas to achieve precise compressions. However, due to individual differences in patient body size, the compression components of existing CPR machines are difficult to adapt to the chest position of patients of different body types, resulting in insufficient compression accuracy and affecting the effectiveness of emergency treatment. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the compression components of existing cardiopulmonary resuscitation (CPR) machines are difficult to adapt to the chest position of patients of different body types, resulting in insufficient compression accuracy and affecting the emergency treatment effect. The present invention provides a backplate assembly and a CPR machine.

[0004] To address the aforementioned problems, in one aspect, embodiments of the present invention provide a backplate assembly, including a main body, a first guide member, a second guide member, a first mounting base, and a second mounting base; The main body is connected between the first guide member and the second guide member along a first direction; The first mounting base is movably connected to the first guide member and is used to connect the first arm of the cardiopulmonary resuscitation machine; The second mounting base is movably connected to the second guide member and is used to connect the second arm of the cardiopulmonary resuscitation machine; both the first arm and the second arm are rotatable relative to the main body of the cardiopulmonary resuscitation machine. The first mounting base can reciprocate along the first direction under the action of an external force to move closer to or away from the main body; the second mounting base can reciprocate along the first direction under the action of an external force to move closer to or away from the main body.

[0005] Optionally, the first mounting base is slidably connected to the first guide member; The second mounting base is slidably connected to the second guide member.

[0006] Optionally, the first guide member includes a first guide rod and a second guide rod, the first guide rod and the second guide rod being spaced apart from each other along a second direction in the main body, and the first mounting base being slidably connected to the first guide rod and the second guide rod; The second guide member includes a third guide rod and a fourth guide rod, which are spaced apart from each other in the body along a second direction. The second mounting base is slidably connected to the third guide rod and the fourth guide rod.

[0007] Optionally, the first mounting base is provided with a first mounting hole, the first mounting hole penetrates the first mounting base along the first direction, and the first mounting base is sleeved on the first guide member through the first mounting hole; The second mounting base is provided with a second mounting hole, which penetrates the second mounting base along the first direction, and the second mounting base is sleeved on the second guide member through the second mounting hole.

[0008] Optionally, the first guide member is provided with a first stop member, the first mounting base is provided with a first limiting groove, the first limiting groove communicates with the first mounting hole, and the first stop member is located in the first limiting groove; the first limiting groove extends along the first direction, the end of the first limiting groove away from the main body passes through the first mounting base, and the end of the first limiting groove close to the main body has a first stopping surface, and the first stop member can stop on the first stopping surface. The second guide member is provided with a second stop member, and the second mounting base is provided with a second limiting groove. The second limiting groove communicates with the second mounting hole, and the second stop member is located in the second limiting groove. The second limiting groove extends along the first direction, and the end of the second limiting groove away from the main body passes through the second mounting base. The end of the second limiting groove near the main body has a second stop surface, and the second stop member can stop on the second stop surface.

[0009] Optionally, the first mounting base is provided with a first positioning member, which is used to temporarily position the first mounting base in a first desired position, and the first positioning member can release the positioning of the first mounting base under the action of external force. The second mounting base is provided with a second positioning member, which is used to temporarily position the second mounting base in a second desired position. The second positioning member can release the positioning of the second mounting base under the action of external force.

[0010] Optionally, the first positioning member includes a first plunger disposed on the first mounting base, the first plunger having a first spherical head at one end away from the first mounting base, and the first guide member having a plurality of mutually spaced first spherical grooves along the first direction, the first spherical head being able to be temporarily positioned in the first spherical groove; The second positioning member includes a second plunger disposed on the second mounting base. The end of the second plunger away from the second mounting base is provided with a second spherical head. The second guide member is provided with a plurality of mutually spaced second spherical grooves along the first direction. The second spherical head can be temporarily positioned in the second spherical groove.

[0011] Optionally, the first mounting base is provided with a first accommodating space, and the first accommodating space is provided with a first connecting member; the first connecting member includes a first base plate, a first hanging plate, a first column, and a second column, the first base plate is connected to the first mounting base, the first hanging plate and the first base plate are arranged vertically opposite each other, the first column and the second column are spaced apart along a second direction, and the first column and the second column are both connected between the first base plate and the first hanging plate; the first base plate, the first hanging plate, the first column and the second column form a first suspension space, and the first support arm is provided with a first hook, the first hook extending into the first suspension space and detachably connected to the first hanging plate; The second mounting base is provided with a second accommodating space, and the second accommodating space is provided with a second connecting member; the second connecting member includes a second base plate, a second hanging plate, a third column, and a fourth column. The second base plate is connected to the second mounting base, the second hanging plate and the second base plate are arranged vertically opposite each other, and the third column and the fourth column are spaced apart along a second direction. The third column and the fourth column are both connected between the second base plate and the second hanging plate; the second base plate, the second hanging plate, the third column and the fourth column form a second suspension space, and the second support arm is provided with a second hook, which extends into the second suspension space and is detachably connected to the second hanging plate.

[0012] Optionally, the first column is provided with a first connecting hole, the second column is provided with a second connecting hole, the first hook is provided with a first mating component, the first mating component includes a first support frame, a first pin and a second pin, the first pin and the second pin are spaced apart on the first support frame along the second direction, the first support frame is rotatably connected to the first hook, the first pin is inserted into the first connecting hole, and the second pin is inserted into the second connecting hole; The third column is provided with a third connecting hole, the fourth column is provided with a fourth connecting hole, the second hook is provided with a second mating component, the second mating component includes a second support frame, a third pin and a fourth pin, the third pin and the fourth pin are spaced apart on the second support frame along the second direction, the second support frame is rotatably connected to the second hook, the third pin is inserted into the third connecting hole, and the fourth pin is inserted into the fourth connecting hole.

[0013] According to the backplate assembly provided in the embodiments of the present invention, by providing a first guide and a second guide on both sides of the main body, and movably mounting a first mounting seat and a second mounting seat on them respectively, the two mounting seats can reciprocate towards or away from the main body along a first direction (i.e., the length direction of the backplate). In use, after placing the patient on the backplate assembly, the operator can manually adjust the positions of the first and second mounting seats according to the patient's body size to fit the patient's shoulder width and chest width. Since both the first and second arms are rotatably connected to the main unit of the cardiopulmonary resuscitation machine, when the positions of the two mounting seats are adjusted, the arms can be extended or retracted accordingly, and smoothly connected to the corresponding mounting seats through a rotating connection structure, thereby ensuring that the compression device is accurately aligned with the lower middle segment of the patient's sternum, achieving efficient and accurate compression. The movable first and second mounting bases, along with the guide structure, enable flexible adjustment of the backplate assembly in the length direction, effectively adapting to the chest position of patients of different body types (especially obese or special body types). At the same time, the rotating connection design of the first and second arms relative to the main unit further enhances the freedom and fit of the overall machine alignment, significantly improving the accuracy and stability of chest compressions, avoiding compression deviation or failure due to mismatch between the equipment and the patient's body type, thereby enhancing the emergency treatment effect and clinical applicability of cardiopulmonary resuscitation.

[0014] The present invention provides a cardiopulmonary resuscitation machine, comprising a main unit, a first arm, a second arm, and the aforementioned backplate assembly; The main unit and the back panel assembly are arranged vertically opposite each other; The host has a first side and a second side opposite to each other along the first direction. The top end of the first support arm is rotatably connected to the first side of the host, and the bottom end of the first support arm is connected to the first mounting base. The top end of the second support arm is rotatably connected to the second side of the host, and the bottom end of the second support arm is connected to the second mounting base.

[0015] The cardiopulmonary resuscitation (CPR) machine provided by this invention significantly improves the adaptability and compression accuracy of the overall structure by vertically aligning the main unit and the adjustable backplate assembly, and by using a first arm and a second arm rotatably connected to both sides of the main unit and correspondingly connected at their bottom ends to movable first and second mounting seats on the backplate assembly. This ensures that the compression head of the main unit is always accurately aligned with the lower middle segment of the sternum. The overall structure is highly coordinated and easy to operate, avoiding compression deviation or failure caused by mismatch between the equipment and the patient's body size, thereby enhancing the emergency treatment effect and clinical applicability of CPR. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a backplane assembly provided in one embodiment of the present invention; Figure 2 for Figure 1 A magnified view of A; Figure 3 for Figure 1 Another perspective; Figure 4 for Figure 3 A schematic diagram of the internal structure cut along BB; Figure 5 for Figure 4 A magnified view of C; Figure 6 This is a schematic diagram of the cardiopulmonary resuscitation machine provided in one embodiment of the present invention; Figure 7 This is a partial structural schematic diagram provided in one embodiment of the present invention; Figure 8 This is a partial structural schematic diagram provided in another embodiment of the present invention; Figure 9 This is a partial structural schematic diagram provided in another embodiment of the present invention; Figure 10 This is a partial structural schematic diagram provided in another embodiment of the present invention.

[0018] The reference numerals in the accompanying drawings are as follows: 1000, Back panel assembly; 2000, First support arm; 20001, First hook; 200011, First pull buckle; 200012, First connecting block; 200013, First rotating hook; 200014, First rotating shaft; 200015, Third rotating shaft; 3000, Second support arm; 30001, Second hook; 300011, Second pull buckle; 4000, Main unit; 5000, Fourth rotating shaft; 6000, Fifth rotating shaft; 1. Main body; 2. First guide member; 21. First guide rod; 22. Second guide rod; 3. Second guide member; 31. Third guide rod; 32. Fourth guide rod; 4. First mounting base; 41. First mounting hole; 42. First limiting groove; 421. First stop surface; 5. Second mounting base; 51. Second mounting hole; 52. Second limiting groove; 6. First stop member; 7. First positioning member; 71. First plunger; 72. First spherical head; 73. First spherical groove; 8. Second positioning member; 9. First accommodating space; 10. First connecting member; 101. First base plate; 102. 103. First hanging plate; 104. First column; 105. First connecting hole; 106. Second column; 107. Second connecting hole; 108. First hanging space; 19. Second accommodating space; 109. Second connecting piece; 100. Second base plate; 101. Second hanging plate; 102. Third column; 133. Third connecting hole; 14. Fourth column; 154. Fourth connecting hole; 16. Second hanging space; 17. First mating piece; 18. First support frame; 19. First pin; 100. Second pin; 101. Second mating piece; 102. Second stop piece. Detailed Implementation

[0019] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0020] In the description of this invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] like Figures 1 to 10 As shown, an embodiment of the present invention provides a backplate assembly 1000, including a main body 1, a first guide member 2, a second guide member 3, a first mounting base 4, and a second mounting base 5; The main body 1 is connected between the first guide member 2 and the second guide member 3 along the first direction; The first mounting base 4 is movably connected to the first guide member 2 and is used to connect the first arm 2000 of the cardiopulmonary resuscitation machine; The second mounting base 5 is movably connected to the second guide member 3 and is used to connect the second arm 3000 of the cardiopulmonary resuscitation machine; both the first arm 2000 and the second arm 3000 are rotatable relative to the main unit 4000 of the cardiopulmonary resuscitation machine. The first mounting base 4 can reciprocate along a first direction under the action of an external force, moving closer to or away from the main body 1; the second mounting base 5 can reciprocate along a first direction under the action of an external force, moving closer to or away from the main body 1. In this embodiment, the first direction is the auxiliary direction. Figure 1 The X-direction is defined in the first mounting base 4 and the second mounting base 5. By movably mounting the first mounting base 4 and the second mounting base 5 on the first guide member 2 and the second guide member 3 respectively, and enabling them to reciprocate along the first direction (i.e., the length direction of the main body 1, corresponding to the direction of the patient's shoulder width when lying flat), the distance between the two mounting bases can be flexibly adjusted according to the patient's body shape. In actual use, the operator can manually adjust the position of the first mounting base 4 and the second mounting base 5 to ensure that the backplate assembly 1000 can be well adapted to patients of different body shapes (especially those with significant differences in shoulder width). For patients with wider body shapes (such as obese individuals), the mounting bases can be stretched outward to increase the distance between the arms; for those with narrower body shapes, they can be pulled inward to reduce the distance. Since both the first arm 2000 and the second arm 3000 of the cardiopulmonary resuscitation machine can rotate relative to the main body 4000, this adjustable structure ensures that the compression device is always accurately aligned with the ideal compression position in the lower middle part of the sternum. This design not only significantly improves the device's versatility and fit for various patient types, but also effectively avoids problems such as low compression efficiency or rib injury caused by misaligned compression positions, thereby improving the quality of cardiopulmonary resuscitation and the success rate of emergency treatment. The overall structure is simple, reliable, and easy to operate, possessing outstanding clinical practical value and promising prospects for widespread application.

[0023] In one embodiment, the first mounting base 4 is slidably connected to the first guide member 2; The second mounting base 5 is slidably connected to the second guide member 3. This sliding connection allows the two mounting bases to move smoothly and steadily along the length of the main body 1 (i.e., the patient's shoulder width direction), enabling quick position adjustment without complex operations. Simultaneously, both the first guide member 2 and the second guide member 3 adopt a structure where one end is fixedly connected to the main body 1, and the other end extends along the first direction (i.e., the length of the main body 1, corresponding to the direction of the patient's shoulder width when lying flat). This ensures that the first guide member 2 and the second guide member 3 provide stable support while reserving a clear and reliable movement path for the sliding adjustment of the first mounting base 4 and the second mounting base 5.

[0024] In one embodiment, the first guide member 2 includes a first guide rod 21 and a second guide rod 22, which are spaced apart on the main body 1 along a second direction, and the first mounting base 4 is slidably connected to the first guide rod 21 and the second guide rod 22. The second guide member 3 includes a third guide rod 31 and a fourth guide rod 32, which are spaced apart on the main body 1 along a second direction. The second mounting base 5 is slidably connected to the third guide rod 31 and the fourth guide rod 32. In this embodiment, the second direction is the auxiliary direction. Figure 1 The first guide member 2 includes a first guide rod 21 and a second guide rod 22 spaced apart along the second direction (i.e., the width direction of the backplate, which is also the direction of the body height when the person is lying flat). The first mounting base 4 is slidably connected to these two guide rods. The second guide member 3 correspondingly includes a third guide rod 31 and a fourth guide rod 32 spaced apart along the second direction. The second mounting base 5 is slidably connected to it. Since the two sets of guide rods form a stable parallel support structure in the second direction, the lateral swaying, twisting or tilting of the mounting base during the sliding process is effectively limited, significantly improving the stability and positioning accuracy of the movement. This dual guide rod layout not only enhances the structural rigidity of the mounting base when subjected to high-frequency compression loads, but also ensures that the first arm 2000 and the second arm 3000 remain vertically aligned and force-balanced after the spacing is adjusted, thereby ensuring that the compression device always accurately acts on the middle and lower part of the patient's sternum.

[0025] In one embodiment, the first mounting base 4 is provided with a first mounting hole 41, the first mounting hole 41 penetrates the first mounting base 4 along a first direction, and the first mounting base 4 is sleeved on the first guide member 2 through the first mounting hole 41; The second mounting base 5 is provided with a second mounting hole 51, which penetrates the second mounting base 5 along the first direction. The second mounting base 5 is fitted onto the second guide member 3 through the second mounting hole 51. Both the first mounting hole 41 and the second mounting hole 51 can be square blocks, and the cross-sections of the first guide member 2 and the second guide member 3 along the first direction can both be square sections. This allows the mounting base to slide smoothly along the guide member in the first direction, while effectively restricting its degrees of freedom in the vertical and torsional directions, ensuring accurate and stable motion trajectory.

[0026] In one embodiment, the first guide member 2 is provided with a first stop member 6, and the first mounting base 4 is provided with a first limiting groove 42. The first limiting groove 42 communicates with the first mounting hole 41, and the first stop member 6 is located in the first limiting groove 42. The first limiting groove 42 extends along a first direction, and the end of the first limiting groove 42 away from the main body 1 passes through the first mounting base 4. The end of the first limiting groove 42 close to the main body 1 has a first stop surface 421, and the first stop member 6 can stop on the first stop surface 421. The second guide member 3 is provided with a second stop member 17, and the second mounting base 5 is provided with a second limiting groove 52. The second limiting groove 52 communicates with the second mounting hole 51, and the second stop member 17 is located in the second limiting groove 52. The second limiting groove 52 extends along the first direction, and the end of the second limiting groove 52 away from the main body 1 passes through the second mounting base 5. The end of the second limiting groove 52 near the main body 1 has a second stop surface, and the second stop member 17 can stop on the second stop surface. The first stop member is provided at the end of the first guide member 2 away from the main body 1 or at other suitable positions. Since the first mounting hole 41 and the first limiting groove 42 are connected on the side away from the main body 1, the first guide member 2 can be directly inserted into the first mounting hole 41 from the open end during assembly, and the fixed end of the first guide member 2 can be connected to the main body 1 without disassembling other parts or using complex tooling, which significantly simplifies the overall assembly process. Meanwhile, the first stop 6 is located within the first limiting groove 42 and can abut against the first stop surface 421 of the first limiting groove 42 near the main body 1 when the mounting seat slides outward to its limit position, thereby effectively preventing the first mounting seat 4 from sliding excessively away from the main body 1 and falling off. The second mounting seat 5 and the second guide 3 adopt the same structure and have the same assembly convenience and anti-detachment safety.

[0027] In one embodiment, the first mounting base 4 is provided with a first positioning member 7, which is used to temporarily position the first mounting base 4 at a first desired position. The first positioning member 7 can release the positioning of the first mounting base 4 under the action of external force. The second mounting base 5 is equipped with a second positioning element 8, which temporarily positions the second mounting base 5 in the desired position. The second positioning element 8 can be released from its position under external force. After adjusting the positions of the first mounting base 4 and the second mounting base 5 according to the patient's body shape, the first positioning element 7 and the second positioning element 8 can reliably and temporarily lock them in the target position, preventing displacement of the mounting base due to vibration, reaction force, or accidental contact during the installation of the main unit 4000 arms or chest compressions. This ensures stable arm spacing and precise alignment of the compression point with the lower middle segment of the sternum. Furthermore, the positioning element adopts a "releaseable" design, allowing the operator to release the positioning with simple external force, enabling quick repositioning or refitting for different patients, balancing adjustment flexibility and operational stability.

[0028] In one embodiment, the first positioning member 7 includes a first plunger 71 disposed on the first mounting base 4, and a first spherical head 72 is provided at one end of the first plunger 71 away from the first mounting base 4. The first guide member 2 is provided with a plurality of mutually spaced first spherical grooves 73 along a first direction, and the first spherical head 72 can be temporarily positioned in the first spherical grooves 73. The second positioning component 8 includes a second plunger located on the second mounting base 5. A second spherical head is located at the end of the second plunger away from the second mounting base 5. The second guide component 3 has multiple spaced-apart second spherical grooves along a first direction, allowing the second spherical head to be temporarily positioned within these grooves. The first mounting base 4 and the second mounting base 5 achieve multi-position, releasable temporary positioning by engaging the plunger with the spherical head with the spaced-apart spherical grooves on the guide component along the first direction (i.e., the length direction of the backplate, corresponding to the patient's shoulder width). This design not only ensures the mounting base can be securely locked in the desired position to accommodate different patient shoulder widths after adjustment, preventing displacement during compression and ensuring compression accuracy, but also allows for easy unlocking and readjustment with minimal external force. The interlocking fit between the spherical head and the spherical grooves provides clear positioning feedback, enhancing the clarity of the operation and effectively resisting vibration and reaction forces during high-frequency compressions on the CPR machine, preventing accidental slippage of the mounting base. Furthermore, this compact and durable design reduces wear and extends service life. Overall, this positioning mechanism based on a spherical head and spherical groove significantly improves the clinical adaptability, safety of use, and overall reliability of the device, enabling the cardiopulmonary resuscitation machine to function more efficiently and stably in emergency situations.

[0029] In one embodiment, the first plunger 71 is disposed at one end of the first mounting base 4 near the main body 1, the first stop is disposed at one end of the first guide 2 away from the main body 1, the first spherical groove 73 is disposed on the bottom surface of the first guide 2, and the first stop is disposed on the top surface of the first guide 2. The second plunger is located at the end of the second mounting base 5 near the main body 1, the second stop is located at the end of the second guide 3 away from the main body 1, the second spherical groove is located on the bottom surface of the second guide 3, and the first stop is located on the top surface of the second guide 3. By arranging the spherical groove and plunger on the bottom surface of the guide and the inner side of the mounting base near the main body 1, the positioning structure is hidden inside the backplate assembly 1000, avoiding external interference and reducing the risk of dust accumulation or collision damage, thus improving the cleanliness and reliability of the equipment. Simultaneously, the stop is located on the top surface of the guide at the end away from the main body 1, forming a staggered arrangement with the spherical groove on the bottom surface. This effectively prevents the mounting base from sliding away from the main body 1 (anti-detachment) while not hindering the insertion and release of the spherical head within the bottom groove.

[0030] In one embodiment, the first mounting base 4 is provided with a first accommodating space 9, and the first accommodating space 9 is provided with a first connecting member 10; the first connecting member 10 includes a first base plate 101, a first hanging plate 102, a first column 103, and a second column 104. The first base plate 101 is connected to the first mounting base 4, the first hanging plate 102 is vertically opposite to the first base plate 101, and the first column 103 and the second column 104 are spaced apart along a second direction. The first column 103 and the second column 104 are both connected between the first base plate 101 and the first hanging plate 102; the first base plate 101, the first hanging plate 102, the first column 103, and the second column 104 form a first suspension space 11, and the first support arm 2000 is provided with a first hook 20001, which extends into the first suspension space 11 and is detachably connected to the first hanging plate 102. By integrating rigid connectors and forming a suspension space within the first mounting base 4, a highly stable and high-load-bearing connection interface is provided for the first arm 2000, effectively bearing the dynamic load generated during high-frequency chest compressions of the cardiopulmonary resuscitation machine and preventing loosening or failure of the connection. Simultaneously, the first hook 20001 can rotate relative to the first arm 2000. This degree of rotational freedom is existing technology, and this application will not elaborate on its structure and connection method. For example, the structure and connection relationship of the first hook 20001 in this application can be the same as the pull-button snap-fit ​​plate (hook) in some published patents. The first hook 20001 of this application may include a first pull buckle 200011, a first connecting block 200012, a first rotating hook 200013, and a first rotating shaft 200014. The first rotating shaft 200014 is disposed on the first connecting block 200012. The first rotating hook 200013 is rotatably connected to the first rotating shaft 200014. One end of the first connecting block 200012 away from the first rotating hook 200013 is connected to the first pull buckle 200011. The first pull buckle 200011 is movably connected to the first support arm 2000. By moving the first pull buckle 200011 up and down, the first connecting block 200012 can be moved, so that the first rotating hook 200013 rotates relative to the first rotating shaft 200014, thereby realizing the engagement or disengagement of the first rotating hook 200013 with the first hanging plate 102. It is understandable that the structure and connection relationship of the first hook 20001 are already well-designed in the prior art, and this application does not make any improvements to the corresponding structure and connection relationship of the first hook 20001, so it will not be described in detail here. Alternatively, the first hook 20001 of this application is hinged to the end of the first support arm 2000 by a torsion spring, pin, or pivot, so that it can swing within a certain angle range. The first hook 20001 can automatically adjust its posture when docking with the first hanging plate 102. Even if the position of the first mounting seat 4 changes due to adapting to patients of different body sizes, it can still be smoothly and reliably hooked into the suspension space and connected with the first hanging plate 102, which significantly improves the assembly tolerance and ease of operation.

[0031] The second mounting base 5 is provided with a second accommodating space 12, and the second accommodating space 12 is provided with a second connecting member 13; the second connecting member 13 includes a second base plate 131, a second hanging plate 132, a third column 133, and a fourth column 134. The second base plate 131 is connected to the second mounting base 5. The second hanging plate 132 and the second base plate 131 are arranged vertically opposite each other. The third column 133 and the fourth column 134 are spaced apart along a second direction. The third column 133 and the fourth column 134 are both connected between the second base plate 131 and the second hanging plate 132. The second base plate 131, the second hanging plate 132, the third column 133, and the fourth column 134 form a second suspension space 14. The second support arm 3000 is provided with a second hook 30001. The second hook 30001 extends into the second suspension space 14 and is detachably connected to the second hanging plate 132. By integrating rigid connectors and forming a suspension space within the second mounting base 5, a highly stable and high-load-bearing connection interface is provided for the second arm 3000, effectively withstanding the dynamic load generated during high-frequency chest compressions of the cardiopulmonary resuscitation machine and preventing loosening or failure of the connection. Simultaneously, the second hook 30001 can rotate relative to the second arm 3000; this rotational freedom is prior art, and this application will not elaborate on its structure and connection method. For example, the structure and connection relationship of the second hook 30001 in this application can be the same as the pull-button snap-fit ​​plate (hook) in some published patents. The structure of the second hook 30001 is the same as that of the first hook 20001. The second hook 30001 of this application may include a second pull buckle 300011, a second connecting block, a second rotating hook, and a second rotating shaft. The second rotating shaft is disposed on the second connecting block, and the second rotating hook is rotatably connected to the second rotating shaft. The end of the second connecting block away from the second rotating hook is connected to the second pull buckle 300011. The second pull buckle 300011 is movably connected to the second support arm 3000. By moving the second pull buckle 300011 up and down, the second connecting block can be moved, causing the second rotating hook to rotate relative to the second rotating shaft, thereby achieving engagement or disengagement between the second rotating hook and the second hanging plate 132. Alternatively, the second hook 30001 of this application may be hinged to the end of the second support arm 3000 via a torsion spring, pin, or rotating shaft, allowing it to swing within a certain angle range. The second hook 30001 can automatically adjust its posture when engaging the hanging plate. Even if the position of the second mounting seat 5 changes due to adapting to patients of different body types, it can still be smoothly and reliably hooked into the suspension space and connected to the second hanging plate 132, significantly improving assembly tolerance and ease of operation.

[0032] In one embodiment, the first column 103 is provided with a first connecting hole 1031, the second column 104 is provided with a second connecting hole 1041, and the first hook 20001 is provided with a first mating component 15. The first mating component 15 includes a first support frame 151, a first pin 152, and a second pin 153. The first pin 152 and the second pin 153 are spaced apart along a second direction on the first support frame 151. The first support frame 151 is rotatably connected to the first hook 20001. The first pin 152 is inserted into the first connecting hole 1031, and the second pin 153 is inserted into the second connecting hole 1041. By providing a first mating component 15 with double pins on the first hook 20001 and making it engage with the connecting holes on the first column 103 and the second column 104, a stable connection structure with two-point positioning and span support is formed, which significantly improves the connection rigidity and torsional resistance between the support arm and the mounting base, and effectively prevents shaking or displacement caused by single-point force during high-frequency pressing. Meanwhile, the first support frame 151 and the first hook 20001 are rotatably connected (e.g., via a pivot or hinge structure), allowing the entire mating component to swing within a certain angle range. This automatically adapts to positional deviations of the mounting base during installation, improving assembly tolerance and operational smoothness. For example, the first hook 200013 is equipped with a third pivot 200015, and the first support frame 151 is rotatably connected to the third pivot 200015, enabling the first support frame 151 to rotate relative to the first hook 20001. The central axis of the first pivot 200014 is parallel to the central axis of the third pivot 200015. Furthermore, the double pins are spaced apart along the second direction, which not only enhances the uniformity of the load-bearing capacity of the connection but also restricts the rotational freedom of the mating component in the vertical plane, ensuring the stability of the hook under stress. Without altering the existing rotational connection between the hook and the support arm (which is existing technology), the overall structure achieves a balance of high reliability, ease of assembly, and dynamic stability by optimizing the mechanical fit of the docking interface, further ensuring the accuracy of chest compressions and the safety of the cardiopulmonary resuscitation machine during emergency treatment of patients of different body sizes.

[0033] The third column 133 has a third connecting hole 1331, the fourth column 134 has a fourth connecting hole 1341, and the second hook 30001 has a second mating component 16. The second mating component 16 includes a second support frame, a third pin, and a fourth pin. The third pin and the fourth pin are spaced apart along a second direction on the second support frame. The second support frame is rotatably connected to the second hook 30001. The third pin is inserted into the third connecting hole 1331, and the fourth pin is inserted into the fourth connecting hole 1341. By setting the second mating component 16 with double pins on the second hook 30001 and forming a two-point span insertion fit with the connecting holes on the third and fourth columns 134, a high-rigidity and torsional-resistant mechanical connection interface is constructed, effectively dispersing the dynamic load generated by the cardiopulmonary resuscitation machine during high-frequency compressions and avoiding the problem of loosening or deformation of single-point connections. Meanwhile, the second support frame and the second hook 30001 are connected by a rotating joint (such as a hinge or pin joint), giving the mating parts a certain degree of angular self-adaptation. Even after the second mounting seat 5 is repositioned to accommodate patients of different body types, it can still smoothly and reliably complete the docking, significantly improving assembly tolerance and ease of operation. The double pins are spaced apart along the second direction, which not only enhances the stability and uniformity of the connection but also limits the swaying of the mating parts in the vertical plane, ensuring that the arm is accurately positioned and without deviation when under force. This design works symmetrically and collaboratively with the first side structure to ensure that the arms on both sides of the main unit 4000 are synchronously and stably connected to the backplate assembly 1000, thereby maintaining the ideal position of the compression head always aligned with the middle and lower part of the sternum.

[0034] According to the backplate assembly 1000 provided in the embodiment of the present invention, by providing a first guide member 2 and a second guide member 3 on both sides of the main body 1, and respectively movably mounting a first mounting seat 4 and a second mounting seat 5 on them, the two mounting seats can reciprocate along a first direction (i.e., the length direction of the backplate) relative to the main body 1, moving closer or further away. In use, after placing the patient on the backplate assembly 1000, the operator can manually adjust the positions of the first mounting seat 4 and the second mounting seat 5 according to the patient's body size to fit the patient's shoulder width and chest width. Since both the first arm 2000 and the second arm 3000 are rotatably connected to the main unit 4000 of the cardiopulmonary resuscitation machine, when the positions of the two mounting seats are adjusted to the correct positions, the arms can be extended or retracted accordingly, and smoothly connected to the corresponding mounting seats through a rotating connection structure, thereby ensuring that the compression device is accurately aligned with the lower middle segment of the patient's sternum, achieving efficient and accurate compression. The movable first mounting base 4 and second mounting base 5, in conjunction with the guide structure, enable flexible adjustment of the backplate assembly 1000 in the length direction, effectively adapting to the chest position of patients of different body types (especially obese or special body types). At the same time, the rotating connection design of the first arm 2000 and the second arm 3000 relative to the main unit 4000 further enhances the freedom and fit of the overall machine alignment, significantly improving the accuracy and stability of chest compressions, avoiding compression deviation or failure due to mismatch between the equipment and the patient's body type, thereby enhancing the emergency treatment effect and clinical applicability of cardiopulmonary resuscitation.

[0035] The cardiopulmonary resuscitation machine provided in this embodiment of the invention includes a main unit 4000, a first arm 2000, a second arm 3000 and the aforementioned backplate assembly 1000; The main unit 4000 and the back panel assembly 1000 are arranged vertically opposite each other; The main unit 4000 has a first side and a second side opposite to each other along a first direction. The top end of the first support arm 2000 is rotatably connected to the first side of the main unit 4000, and the bottom end of the first support arm 2000 is connected to the first mounting base 4. The top end of the second support arm 3000 is rotatably connected to the second side of the main unit 4000, and the bottom end of the second support arm 3000 is connected to the second mounting base 5. In this embodiment, the vertical direction is the attachment. Figure 1The Z-axis of the device is used. By rotatably connecting the first arm 2000 and the second arm 3000 to both sides of the main unit 4000, the arms have the swing freedom required for compression in the vertical plane. Simultaneously, in conjunction with the first mounting base 4 and the second mounting base 5 in the backplate assembly 1000, which can slide and adjust along the first direction, the distance between the bottom ends of the two arms can be flexibly adjusted according to the patient's body shape, ensuring that the compression component is always accurately aligned with the lower middle segment of the sternum. This "rotatable upper end + adjustable lower end" linkage design significantly improves the device's adaptability to different body types (especially obese or thin patients), avoiding the risk of compression deviation, decreased efficiency, or rib injury caused by a fixed arm spacing, thereby improving the quality and safety of cardiopulmonary resuscitation. The first arm 2000 and the second arm 3000 can be rotatably connected to both sides of the main unit 4000 via pins. Understandably, both pivot pins extend along the second direction, allowing the bottom ends of the first arm 2000 and the second arm 3000 to be at the same height, and the horizontal distance between the bottom ends of the first arm 2000 and the second arm 3000 can be increased or decreased. For example, a fourth pivot 5000 is provided on the first side of the main unit 4000, to which the first arm 2000 is rotatably connected; a fifth pivot 6000 is provided on the second side of the main unit 4000, to which the second arm 3000 is rotatably connected; and the central axis of the fourth pivot 5000 is parallel to the central axis of the fifth pivot 6000. It should be noted that the main unit 4000 itself is existing technology, and its structure, including the machine cover, display screen assembly, alarm light cover, interface cover, and pressing assembly, are all standard components of current cardiopulmonary resuscitation machines; its internal control system, high-pressure gas drive mechanism, human-machine interaction module, and other functional units also use existing mature technical solutions. For example, a chest compression assembly typically consists of a cylinder and a compression head. The cylinder is connected to an external high-pressure air source via a pipeline, and drives the compression head to perform high-frequency, constant-depth chest compressions under the command of the control system. This application does not make substantial improvements to the main unit 4000 or its internal functional modules, nor is it intended to be a patented object. Instead, it focuses on the innovation of the backplate assembly 1000, aiming to solve the problem of insufficient adaptability caused by the fixed size of the backplate in existing equipment. Therefore, this invention, while maintaining compatibility with the existing main unit 4000 platform, achieves a wider range of clinical applicability and higher reliability in emergency care by optimizing the mechanical interface and support structure.

[0036] The cardiopulmonary resuscitation (CPR) machine provided by this invention significantly improves the adaptability and compression accuracy of the overall structure by vertically aligning the main unit 4000 and the adjustable backplate assembly 1000, and by using a first arm 2000 and a second arm 3000 rotatably connected to both sides of the main unit 4000 and correspondingly connected at their bottom ends to movable first mounting seats 4 and second mounting seats 5 on the backplate assembly 1000. This ensures that the compression head of the main unit 4000 is always accurately aligned with the lower middle segment of the sternum. The overall structure is highly coordinated and easy to operate, avoiding compression deviation or failure caused by mismatch between the equipment and the patient's body size, thereby enhancing the emergency treatment effect and clinical applicability of CPR.

[0037] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A backplane assembly, characterized in that, Includes a main body, a first guide member, a second guide member, a first mounting base, and a second mounting base; The main body is connected between the first guide member and the second guide member along a first direction; The first mounting base is movably connected to the first guide member and is used to connect the first arm of the cardiopulmonary resuscitation machine; The second mounting base is movably connected to the second guide member and is used to connect the second arm of the cardiopulmonary resuscitation machine; both the first arm and the second arm are rotatable relative to the main body of the cardiopulmonary resuscitation machine. The first mounting base can reciprocate along the first direction under the action of an external force to move closer to or away from the main body; the second mounting base can reciprocate along the first direction under the action of an external force to move closer to or away from the main body.

2. The backplane assembly according to claim 1, characterized in that, The first mounting base is slidably connected to the first guide member; The second mounting base is slidably connected to the second guide member.

3. The backsheet assembly according to claim 2, characterized in that, The first guide member includes a first guide rod and a second guide rod, which are spaced apart from each other in the body along a second direction. The first mounting base is slidably connected to the first guide rod and the second guide rod. The second guide member includes a third guide rod and a fourth guide rod, which are spaced apart from each other in the body along a second direction. The second mounting base is slidably connected to the third guide rod and the fourth guide rod.

4. The backplane assembly according to claim 2, characterized in that, The first mounting base is provided with a first mounting hole, which penetrates the first mounting base along the first direction, and the first mounting base is sleeved on the first guide member through the first mounting hole; The second mounting base is provided with a second mounting hole, which penetrates the second mounting base along the first direction, and the second mounting base is sleeved on the second guide member through the second mounting hole.

5. The backplane assembly according to claim 4, characterized in that, The first guide member is provided with a first stop member, the first mounting base is provided with a first limiting groove, the first limiting groove is connected to the first mounting hole, and the first stop member is located in the first limiting groove; the first limiting groove extends along the first direction, the end of the first limiting groove away from the main body passes through the first mounting base, and the end of the first limiting groove close to the main body has a first stopping surface, and the first stop member can stop on the first stopping surface. The second guide member is provided with a second stop member, and the second mounting base is provided with a second limiting groove. The second limiting groove communicates with the second mounting hole, and the second stop member is located in the second limiting groove. The second limiting groove extends along the first direction, and the end of the second limiting groove away from the main body passes through the second mounting base. The end of the second limiting groove near the main body has a second stop surface, and the second stop member can stop on the second stop surface.

6. The backplane assembly according to claim 1, characterized in that, The first mounting base is provided with a first positioning member, which is used to temporarily position the first mounting base in a first desired position. The first positioning member can release the positioning of the first mounting base under the action of external force. The second mounting base is provided with a second positioning member, which is used to temporarily position the second mounting base in a second desired position. The second positioning member can release the positioning of the second mounting base under the action of external force.

7. The backplane assembly according to claim 6, characterized in that, The first positioning member includes a first plunger disposed on the first mounting base, a first spherical head disposed at one end of the first plunger away from the first mounting base, and a plurality of mutually spaced first spherical grooves disposed along the first direction, wherein the first spherical head can be temporarily positioned in the first spherical groove; The second positioning member includes a second plunger disposed on the second mounting base. The end of the second plunger away from the second mounting base is provided with a second spherical head. The second guide member is provided with a plurality of mutually spaced second spherical grooves along the first direction. The second spherical head can be temporarily positioned in the second spherical groove.

8. The backplane assembly according to claim 1, characterized in that, The first mounting base is provided with a first accommodating space, and the first accommodating space is provided with a first connecting member; the first connecting member includes a first base plate, a first hanging plate, a first column, and a second column. The first base plate is connected to the first mounting base, the first hanging plate and the first base plate are arranged vertically opposite each other, and the first column and the second column are spaced apart along a second direction. The first column and the second column are both connected between the first base plate and the first hanging plate; the first base plate, the first hanging plate, the first column, and the second column form a first suspension space, and the first support arm is provided with a first hook, which extends into the first suspension space and is detachably connected to the first hanging plate; The second mounting base is provided with a second accommodating space, and the second accommodating space is provided with a second connecting member; the second connecting member includes a second base plate, a second hanging plate, a third column, and a fourth column. The second base plate is connected to the second mounting base, the second hanging plate and the second base plate are arranged vertically opposite each other, and the third column and the fourth column are spaced apart along a second direction. The third column and the fourth column are both connected between the second base plate and the second hanging plate; the second base plate, the second hanging plate, the third column and the fourth column form a second suspension space, and the second support arm is provided with a second hook, which extends into the second suspension space and is detachably connected to the second hanging plate.

9. The backplane assembly according to claim 8, characterized in that, The first column is provided with a first connecting hole, the second column is provided with a second connecting hole, the first hook is provided with a first mating component, the first mating component includes a first support frame, a first pin and a second pin, the first pin and the second pin are spaced apart on the first support frame along the second direction, the first support frame is rotatably connected to the first hook, the first pin is inserted into the first connecting hole, and the second pin is inserted into the second connecting hole; The third column is provided with a third connecting hole, the fourth column is provided with a fourth connecting hole, the second hook is provided with a second mating component, the second mating component includes a second support frame, a third pin and a fourth pin, the third pin and the fourth pin are spaced apart on the second support frame along the second direction, the second support frame is rotatably connected to the second hook, the third pin is inserted into the third connecting hole, and the fourth pin is inserted into the fourth connecting hole.

10. A cardiopulmonary resuscitation machine, characterized in that, Includes a main unit, a first arm, a second arm, and a backplate assembly as described in any one of claims 1 to 9; The main unit and the back panel assembly are arranged vertically opposite each other; The host has a first side and a second side opposite to each other along the first direction. The top end of the first support arm is rotatably connected to the first side of the host, and the bottom end of the first support arm is connected to the first mounting base. The top end of the second support arm is rotatably connected to the second side of the host, and the bottom end of the second support arm is connected to the second mounting base.

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