External chest compression machine

Abstract

The utility model discloses an external chest compression machine, and relates to the field of cardio-pulmonary resuscitation equipment, the external chest compression machine comprises two linear driving mechanisms arranged on a bed body and an adjusting mechanism arranged on the two linear driving mechanisms, a supporting beam is arranged on the linear driving mechanisms, and a fixing seat is arranged in the middle of the supporting beam; the adjusting mechanism comprises a fixing cylinder fixedly arranged at the bottom of the fixing base, a plurality of annular grooves are formed in the middle of the surface of the fixing cylinder, a clamping shell is arranged around the positions, located at the annular grooves, of the surface of the fixing cylinder, a plurality of rotating plates are arranged around the outer side of the clamping shell, and a through hole is formed in the middle of the fixing cylinder; and moving columns are inserted into the through holes. The external chest compression machine has the advantages that the safe compression distance between the compression head and the chest of a patient is effectively kept, so that secondary damage caused by compression of the compression head is prevented, the linear driving mechanism is detachable on the bed body, and the external chest compression machine can be used in cooperation with various examination beds, operation beds and the like.

Description

Technical Field

[0001] This application relates to the field of cardiopulmonary resuscitation equipment, and in particular to an external chest compressors. Background Art

[0002] External chest compressions are an emergency method often used to restore the beating of the heart during cardiac arrest. When performing rescue in the wild without the conditions of various medical devices, for patients with a stopped heart, manual compression of the external chest heart area is usually used to perform compression to resuscitate the heart. However, due to the influence of human physical strength and other factors, the manual compression method cannot ensure that the amplitude (adult compression depth is 3.8 - 5 cm, minor is 2 - 3 cm) and frequency (100 times / min) of each compression are uniformly effective; and due to different pathologies of the patients being rescued, the compression cycles required are also different, ranging from a few minutes for the short ones to several hours for the long ones.

[0003] The method of manual external chest compressions has high requirements for the accuracy of the compression site and technique, and has a large labor intensity. Sometimes several medical staff need to take turns, and it is not easy to control the strength, amplitude, depth and speed of each compression, and consistency cannot be guaranteed. Therefore, it is of great significance to research and develop equipment that can be used for external chest compressions.

[0004] For example, in publication number CN202210267477.0, a thoracic cavity compression drive mechanism and an external chest compressor, the above device has the following deficiencies in actual use:

[0005] This device places the patient under the pressing head, and then the power shaft drives the pressing head to press down, so as to rescue the patient. However, the direct pressing of the power shaft leaves no safe pressing distance between the pressing head and the patient's chest, which is likely to cause secondary injury to the patient's chest and has poor practicability. Utility Model Content

[0006] In order to improve the problem that the existing conventional external chest compressors cannot maintain a safe pressing distance between the pressing head and the patient's chest, thus causing secondary damage, this application provides an external chest compressor.

[0007] The external chest compressor provided by this application adopts the following technical solutions:

[0008] An external chest compressor includes two linear drive mechanisms arranged on a bed body and an adjustment mechanism arranged on the two linear drive mechanisms. A support beam is movably arranged on one side of the surface of each of the two linear drive mechanisms, and a fixed seat is arranged in the middle of the support beam;

[0009] The adjusting mechanism includes a fixed cylinder fixedly arranged at the bottom of the fixed seat. A plurality of annular grooves are formed in the middle of the surface of the fixed cylinder. A clamping shell is arranged around the surface of the fixed cylinder at the position of the annular groove. A plurality of rotating plates are arranged around the outer side of the clamping shell. A through hole is formed in the middle of the fixed cylinder, and a moving column is inserted into the through hole.

[0010] By adopting the above technical solution, the adjusting mechanism is unfolded so that the moving column extends outward from the fixed cylinder, thereby adjusting the distance between the pressing head and the patient's chest. At the same time, the linear driving mechanism drives the adjusting mechanism to move up and down as a whole, thereby providing power for the downward pressing of the pressing head, facilitating the medical rescue of the patient.

[0011] Preferably, moving blocks are threadedly arranged on the screw rods of the two linear driving mechanisms. Transverse frames are fixedly arranged on the side surfaces of the two moving blocks. The inner walls of the two transverse frames are in contact with the support beam. First fixing bolts are threadedly arranged on the tops of the two transverse frames. Bellows are fixedly arranged on the surfaces of the two linear driving mechanisms and are hermetically connected to the moving blocks.

[0012] By adopting the above technical solution, the rotation of the screw rod drives the moving block to move up and down, thereby driving the connecting rod to move synchronously. With the movement of the moving rod, the fixed seat is driven to move up and down, transmitting power for the descent of the adjusting mechanism.

[0013] Preferably, the adjusting mechanism further includes a plurality of rotating grooves formed in the side surface of the clamping shell. Smooth rods are fixedly arranged in the plurality of rotating grooves, and the plurality of smooth rods are rotatably connected to the plurality of rotating plates one by one.

[0014] By adopting the above technical solution, the rotating plate rotates around the smooth rod as the center point in the rotating groove, thereby transmitting power for the subsequent rotation of the rotating rod and abutting and fixing the moving column.

[0015] Preferably, rotating rods are fixedly arranged on one side of the tops of the plurality of rotating plates. Linking plates are rotatably connected to the surfaces of the plurality of rotating rods, and adjacent two rotating rods are connected to each other through the linking plates one by one.

[0016] By adopting the above technical solution, the rotating plate rotates to apply a pushing and pulling force to the two connected linking plates. Cooperating with the linking plate to transmit the pushing and pulling force to the adjacent other rotating plate, a whole is formed, thereby keeping the plurality of rotating plates rotating synchronously.

[0017] Preferably, fixing blocks are fixedly arranged at one end of the side surfaces of the plurality of rotating plates close to the clamping shell.

[0018] By adopting the above technical solution, the fixing block is inserted into the through groove of the rotating groove and abuts against the surface of the moving column, thereby fixing the moving column in the fixed cylinder.

[0019] Preferably, slideways are fixedly provided on the opposite sides of the two linear drive mechanisms, support plates are abutted on the surfaces of the two slideways, and second fixing bolts are inserted into the two support plates.

[0020] By adopting the above technical solution, the linear drive mechanism is fixedly connected to the slideway, forming an integral fixed connection between the linear drive mechanism and the support plate. At the same time, the second fixing bolt controls the tightness of the connection between the linear drive mechanism and the support plate, enabling the support plate to move within the slideway, thereby flexibly adjusting the height of the support plate.

[0021] Preferably, longitudinal frames are fixedly provided on the opposite sides of the two support plates, and side sliders inserted and fixed to the longitudinal frames are fixedly provided on both sides of the bed body.

[0022] By adopting the above technical solution, the support plate connects the slideway and the longitudinal frame, enabling the longitudinal frame to clamp the side slider and drive the bed body to adjust the height, and assisting in reserving a safe pressing space.

[0023] Preferably, a connection block is fixedly provided at the bottom of the moving column, and a sucker-type pressing pad is fixedly provided at one end of the connection block away from the moving column.

[0024] By adopting the above technical solution, a screw is installed on one side of the sucker-type pressing pad to form a fixed connection with the connection block, thereby receiving the downward pressure transmitted by the moving column 69 to form a reciprocating lifting motion and performing pressing rescue on the patient's chest.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The rotating plate drives the rotating rod to rotate, thereby applying a pushing and pulling force to the adjacent linkage plate, enabling the three rotating plates to form an integral body, and enabling the fixing block to fix the moving column in three directions, so that the length of the moving column located outside can be flexibly extended, thereby adjusting and controlling the distance between the lower pressing plate and the patient's chest according to the actual situation, reserving a safe pressing space, preventing secondary injuries, and at the same time, the two linear drive mechanisms providing power for the lifting of the fixed cylinder are installed on both sides of the bed body, avoiding contact with the patient and X-rays involved in the interventional operation and causing influence. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall connection diagram of the present application;

[0028] Figure 2 is the connection diagram of the linear drive mechanism of the present application;

[0029] Figure 3 is the exploded view of the adjustment mechanism of the present application;

[0030] Figure 4 is the overall exploded view of the present application.

[0031] Reference numerals: 1, bed body; 2, linear drive mechanism; 3, moving block; 4, support beam; 5, fixed seat;

[0032] 6, adjusting mechanism; 61, fixed cylinder; 62, annular groove; 63, clamping housing; 64, rotating groove; 65, rotating plate; 66, rotating rod; 67, linkage plate; 68, fixed block; 69, moving column;

[0033] 7, connecting block; 8, suction cup pressing pad; 9, bellows; 10, transverse frame; 11, first fixing bolt; 12, slideway; 13, support plate; 14, second fixing bolt; 15, longitudinal frame; 16, side slider. Detailed implementation manners

[0034] The following further elaborates on this application Figures 1-4 in detail with reference to the accompanying drawings.

[0035] The embodiment of this application discloses an external chest compress device.

[0036] Embodiment 1

[0037] Referring to Figure 1 , 2 , an external chest compress device includes side sliders 16 fixedly arranged on both sides of the bed body 1. The bed body 1 is used for a patient to lie flat. Longitudinal frames 15 are inserted and fixed on the surfaces of both side sliders 16. The longitudinal frames 15 are integrally U-shaped, and the U-shaped inner walls of the longitudinal frames 15 are inserted into the surfaces of the side sliders 16. At the same time, through holes are opened at the tops of both longitudinal frames 15, and screws abutting against the tops of the side sliders 16 are threadedly connected in the through holes. Support plates 13 are fixedly arranged on the opposite surfaces of both longitudinal frames 15. Grooves are opened in the middles of the support plates 13, and second fixing bolts 14 are movably inserted in the grooves. Nuts are threadedly connected to partial surfaces of the second fixing bolts 14 on the side of the support plates 13 close to the longitudinal frames 15. At the same time, nuts are fixedly connected to partial surfaces of the second fixing bolts 14 on the side of the support plates 13 away from the longitudinal frames 15. At the same time, slideways 12 are inserted into partial surfaces of the nuts of the second fixing bolts 14.

[0038] Rotate the screws at the tops of the longitudinal frames 15 to apply a downward pressure on the tops of the side sliders 16, so that the side sliders 16 are fixed on the U-shaped inner walls of the longitudinal frames 15 and can be detachably moved. At the same time, rotate the nut parts of the second fixing bolts 14, so as to drive the screws to turn the nut parts of the second fixing bolts 14 outwards, thereby pushing the inner walls of the slideways 12 to move outwards synchronously, shortening the distance between the slideways 12 and the support plates 13. When the slideways 12 abut against the support plates 13, a complete fixation is formed, and the second fixing bolts 14 can be reversed to form a flexible disassembly, and the size of the auxiliary adjustment device can be adjusted according to the body types of different people.

[0039] Referring to Figure 1 , 2, 4. On the surfaces of opposite sides of the two slideways 12, linear drive mechanisms 2 are fixedly installed. A moving block 3 is threadedly connected to the screw rod surface of the linear drive mechanism 2. On the side of the moving block 3 away from the housing of the linear drive mechanism 2, a transverse frame 10 is fixedly installed by screws. The transverse frame 10 is integrally U-shaped. A support beam 4 is inserted into the U-shaped inner wall of the transverse frame 10. At the same time, through holes are provided at the top of the transverse frame 10, and a first fixing bolt 11 is threadedly connected in the through holes. A nut is threadedly connected to a part of the surface of the first fixing bolt 11 located at the top of the transverse frame 10. A nut is fixedly installed at the end of the part of the first fixing bolt 11 located inside the U-shaped inner wall of the transverse frame 10. The bottom of the nut abuts against the upper end surface of the support beam 4.

[0040] It should be noted that bellows 9 are adhesively fixed to the outer surface of the housing of the linear drive mechanism 2 at both the upper and lower ends of the moving block 3. The bellows 9 completely cover the screw rod of the linear drive mechanism 2 to form an internal seal. At the same time, a fixing seat 5 is inserted and fixed on the middle surface of the support beam 4. In this application, both the support beam 4 and the fixing seat 5 are made of acetal POM material, which realizes the lightweight of the equipment while meeting the material strength requirements.

[0041] The motor in the housing of the linear drive mechanism 2 drives the screw rod to rotate, causing the moving block 3 to move up and down on the screw rod surface. The moving block 3 drives the transverse frame 10 to move synchronously. At the same time, a support beam 4 is detachably fixed in the transverse frame 10 to form an overall fixation, so that the support beam 4 drives the fixing seat 5 to move up and down, thereby transmitting the power provided by the linear drive mechanism 2 to the subsequent adjustment mechanism 6.

[0042] The longitudinal frame 15 is detachable on the slider 16, so that the two linear drive mechanisms 2 are detachable on the bed body 1, which is convenient for the chest compressors to cooperate with various inspection beds, transfer beds, etc. Using a U-shaped longitudinal frame 15 fixed on the slider 16 enables the chest compressors to perform chest compressions stably when cooperating with various inspection beds, transfer beds, etc.

[0043] Refer to Figure 1 , 3, 4. The adjusting mechanism 6 includes a fixed cylinder 61 welded and fixed to the bottom of the fixed seat 5. A through hole is opened in the middle of the fixed cylinder 61, and a movable column 69 is movably inserted in the through hole. A plurality of annular grooves 62 are opened in the middle of the outer surface of the fixed cylinder 61 around the through hole. An annular clamping shell 63 is fixed on the outer surface of the fixed cylinder 61 at the position where the plurality of annular grooves 62 are located, and a rotation groove 64 is opened at the protrusions on the outer surface of the clamping shell 63. A smooth rod is fixed in the middle of the inner wall of the plurality of rotation grooves 64, and the surfaces of the plurality of smooth rods are rotatably connected to the rotating plates 65. The side walls of the plurality of rotating plates 65 are fixed with fixed blocks 68 at one end close to the fixed cylinder 61, and the upper end surfaces of the plurality of rotating plates 65 are fixed with rotating rods 66 on the side away from the rotating groove 64. The surfaces of the plurality of rotating rods 66 are rotatably connected to linkage plates 67, and the other end of the plurality of linkage plates 67 away from the current rotating rod 66 is rotatably connected to the surface of the adjacent rotating rod 66, forming a one-to-one connection and finally realizing a closed loop.

[0044] It should be noted that there is a movable gap between the movable column 69 and the inner wall of the through hole, and the number of the annular groove 62, the rotating groove 64, the rotating plate 65 and the rotating rod 66 is the same, and the number is at least three. At the same time, the annular groove 62 passes through the side wall to communicate with the through hole of the fixed cylinder 61, and the rotating groove 64 passes through the side wall to communicate with the through hole of the fixed cylinder 61. The annular groove 62 and the rotating groove 64 are in a one-to-one alignment, thereby maintaining communication. Under normal circumstances, the fixed block 68 and the through-opening of the rotating groove 64 are in an aligned state, and the end face of the fixed block 68 abuts against the surface of the movable column 69. A connecting block 7 is welded and fixed to the bottom of the movable column 69, and a suction cup type pressing pad 8 is plugged and fixed to the bottom of the connecting block 7. The bottom surface of the suction cup type pressing pad 8 is cotton wool or felt, and a screw is threaded on one side of the suction cup type pressing pad 8. The screw passes through the suction cup type pressing pad 8 and the connecting block 7 to form a whole fixed at the same time, which can be flexibly disassembled.

[0045] When a person rotates one of the multiple rotating plates 65, the rotating plate 65 rotates with the smooth rod in the middle of the rotating groove 64 as the center, thereby driving the rotating rod 66 to rotate. As the rotating rod 66 rotates, pushing and pulling forces are respectively applied to the two linkage plates 67 on the surface, thereby transferring the force from the current rotating rod 66 to the two adjacent rotating rods 66, and then the two adjacent rotating plates 65 rotate in the same direction as the initial rotating plate 65. As the three rotating rods 66 rotate, the fixed block 68 is driven to rotate and move out of the opening of the rotating groove 64, so that the fixed block 68 cancels the fixation of the moving column 69. At this time, the moving column 69 is in an active state. Then the person can extend the length of the moving column 69 at the outside according to the patient's body shape, thereby maintaining a good pressing distance.

[0046] Conventional chest compression machines are large in size, which will affect the use of detection equipment during interventional surgery. This application uses two linear drive mechanisms 2 on both sides of the bed 1 to drive the suction cup type pressing pad 8 to move, thereby reducing the overall equipment height. At the same time, the support beam 4 and the fixing seat 5 are both made of Saigang POM material, thereby reducing the impact of metal on interventional surgery detection.

[0047] Among them, the linear drive mechanism 2 and the structures such as the lead screw, slider, motor, etc. contained therein are all existing technologies, and their structural principles will not be described in detail.

[0048] The implementation principle of the chest compression machine of the embodiment of the present application is as follows: when using the device, the patient needs to lie flat on the bed 1 with the chest facing the bottom of the suction cup type pressing pad 8, and then the person rotates one of the rotating plates 65, and the rotating plate 65 rotates with the smooth rod in the middle of the rotating groove 64 as the center point, thereby driving the rotating rod 66 to rotate synchronously. As the rotating rod 66 rotates, the two linkage plates 67 connected on the surface are respectively applied with push and pull forces, and then the two linkage plates 67 respectively apply push and pull forces to the two ends of the adjacent linkage plate 67, thereby forming an overall linkage;

[0049] When one of the rotating plates 65 rotates, it drives the other two rotating plates 65 to rotate in the same direction. As the three rotating plates 65 rotate, the fixed block 68 rotates out from the through hole at the bottom of the rotating groove 64, and then staggered with the movable column 69. At this time, the movable column 69 is located in the fixed cylinder 61 and is in an active state, thereby adjusting the length of the movable column 69 located outside, thereby extending it, so that the horizontal height of the lower pressing plate 71 is lowered to the patient's chest surface, and reserving sufficient pressing distance.

[0050] At the same time, the second fixing bolt 14 can be rotated to loosen the longitudinal frame 15 and the slideway 12, thereby facilitating personnel to adjust the height of the bed 1 according to the patient's body shape, thereby assisting in rescue.

[0051] The microcomputer sends a signal to control the start-up of the two linear drive mechanisms 2. The motor in the linear drive mechanism 2 drives the two lead screws to rotate. As the two lead screws rotate, the two moving blocks 3 translate along the surface of the lead screws, thereby driving the support beam 4 to make the fixed seat 5 perform a cyclic descending and ascending action. At the same time, the fixed seat 5 is integrally connected to the fixed cylinder 61, thereby transmitting downward pressure to make the suction cup type pressing pad 8 press the patient's chest.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An external chest compression machine, characterized in that: It includes two linear drive mechanisms (2) arranged on the bed body (1) and an adjustment mechanism (6) arranged on the two linear drive mechanisms (2). On one side of the surface of each of the two linear drive mechanisms (2), a support beam (4) is movably arranged, and a fixed seat (5) is arranged in the middle of the support beam (4); The adjustment mechanism (6) includes a fixed cylinder (61) fixed to the bottom of the fixed seat (5). A plurality of annular grooves (62) are formed in the middle of the surface of the fixed cylinder (61). A clamping shell (63) is arranged around the surface of the fixed cylinder (61) at the position of the annular groove (62). A plurality of rotating plates (65) are arranged around the outside of the clamping shell (63). A through hole is formed in the middle of the fixed cylinder (61), and a moving column (69) is inserted into the through hole. A connecting block (7) is fixed to the bottom of the moving column (69), and a suction cup pressing pad (8) is fixed to one end of the connecting block (7) away from the moving column (69); The adjustment mechanism (6) further includes a plurality of rotating grooves (64) formed in the side surface of the clamping shell (63). Smooth rods are fixed in the grooves of the plurality of rotating grooves (64), and the plurality of smooth rods are rotatably connected to the plurality of rotating plates (65) one by one; One side of the top of each of the plurality of rotating plates (65) is fixed with a rotating rod (66). Linkage plates (67) are rotatably connected to the surfaces of the plurality of rotating rods (66), and adjacent two rotating rods (66) are connected to each other through the linkage plates (67) one by one. Fixed blocks (68) are fixed to one ends of the side surfaces of the plurality of rotating plates (65) close to the clamping shell (63).

2. The external chest compressions machine according to claim 1, wherein: Moving blocks (3) are threadedly arranged on the lead screws of the two linear drive mechanisms (2). Transverse frames (10) are fixed to the side surfaces of the two moving blocks (3). The inner walls of the two transverse frames (10) are in contact with the support beam (4). First fixing bolts (11) are threadedly arranged on the tops of the two transverse frames (10). Bellows (9) hermetically connected to the moving blocks (3) are fixed to the surfaces of the two linear drive mechanisms (2).

3. The chest compress machine according to claim 1, characterized in that: Sliding ways (12) are fixed to the opposite sides of the two linear drive mechanisms (2). Support plates (13) are arranged in contact with the surfaces of the two sliding ways (12). Second fixing bolts (14) are inserted into the two support plates (13).

4. The external chest compression machine according to claim 3, characterized in that: Longitudinal frames (15) are fixed to the opposite sides of the two support plates (13). Side sliders (16) inserted and fixed to the longitudinal frames (15) are fixed to both sides of the bed body (1).

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