Dual-purpose heart compression device

Abstract

A dual-purpose CPR device includes a manual support frame, a pressing lever, and a pressing head. The pressing head is connected to the pressing lever, which is connected to the manual support frame via a swing shaft extending longitudinally. The pressing lever swings up and down relative to the manual support frame around the swing shaft. The pressing lever also has a first grip for the rescuer to hold, with the first grip and the manual support frame located on opposite sides of the pressing head. The manual support frame has a foot-pressing component for the rescuer's legs to hold down. A transmission rod is also included, with a movable connection between the lower end of the transmission rod and the swinging end of the pressing lever. The upper end of the transmission rod has a second grip for the rescuer to hold. This invention is suitable for rescuers to perform CPR in either a standing or squatting position, and regardless of the position, it utilizes leverage to save effort.

Description

Technical Field

[0001] This utility model belongs to the technical field of medical emergency equipment, specifically relating to a dual-purpose heart compressor that allows rescuers to choose between standing or squatting / kneeling positions for chest compressions. Background Technology

[0002] Cardiac compressions (cardiopulmonary resuscitation) are an important measure for rescuing patients with sudden cardiac arrest. They can restore the patient's heart to contract and expand, temporarily establishing an effective artificial circulation, and providing the patient's heart, brain, and other vital organs with basic blood and oxygen supply, thus providing the possibility of resuscitation and even saving the patient's life.

[0003] However, manual chest compressions are physically demanding. Most people become fatigued and exhausted after more than two minutes of continuous manual compressions. In particular, most female nurses and doctors find it difficult to even last two minutes. After one or two minutes of compressions, they become weak and their compression depth becomes increasingly insufficient, resulting in a significant decrease in the quality of compressions. This can easily lead to insufficient blood flow to the patient and affect the effectiveness of the resuscitation.

[0004] To address the issues of compression depth and fatigue, lightweight heart compressors have been designed. These compressors utilize a lever structure, making compressions easier and preventing fatigue from hindering continued compressions or insufficient compression depth.

[0005] However, existing heart compression devices still have the following problems: when using the device, rescuers can only choose a squatting or kneeling position where the knees need to be bent significantly, and cannot choose a standing position (where the knees do not need to be bent significantly); when used in a patient's home, if only one or two people are at home to perform the rescue, and the person performing the compression cannot squat or kneel for a long time due to difficulty in bending their knees, then there are still problems of inconvenience in use and fatigue due to uncomfortable posture. Utility Model Content

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a dual-purpose heart compression device. It is suitable for rescuers to perform compressions in a standing position with their knees not bent, or in a squatting or kneeling position with their knees bent. Regardless of whether the rescuer chooses a standing or squatting / kneeling position, it can save effort by utilizing the lever principle.

[0007] The objective can be achieved as follows: A dual-purpose heart compressor includes a manual fixation bracket, a compression lever, and a compression head. The compression head is connected to the compression lever, and the compression lever is connected to the manual fixation bracket via a swing shaft. The swing shaft extends longitudinally, and the compression lever is perpendicular to the swing shaft. The compression lever swings up and down relative to the manual fixation bracket around the swing shaft. The compression lever also has a first grip for the rescuer to hold. The first grip and the manual fixation bracket are located on opposite sides of the compression head. The feature is that the manual fixation bracket has a foot pressure component for the rescuer's legs to press down on. It also has a transmission rod, with a movable connection structure between the lower end of the transmission rod and the swing end of the compression lever. The upper end of the transmission rod has a second grip for the rescuer to hold.

[0008] The movable connection structure between the lower end of the transmission rod and the swing end of the pressing swing rod refers to the fact that the lower end of the transmission rod is provided with a U-shaped fork, with the fork opening facing downwards; when the lower end of the transmission rod is connected to the swing end of the pressing swing rod, the swing end of the pressing swing rod is clamped in the fork opening of the U-shaped fork.

[0009] An anti-slip component is also formed at the swing end of the pressing swing arm to prevent the U-shaped fork from slipping off along the pressing swing arm.

[0010] The first grip is a handle perpendicularly connected to the pressing swing arm; when the lower end of the transmission rod is connected to the swing end of the pressing swing arm, the U-shaped fork is located inside the handle, and the handle forms an anti-slip component that prevents the U-shaped fork from slipping off the pressing swing arm. In this way, the handle has a dual function.

[0011] The first grip is a handle that is perpendicularly connected to the pressing lever, and the extension direction of the handle is longitudinal. The movable connection structure between the lower end of the transmission rod and the swing end of the pressing lever refers to the fact that the lower end of the transmission rod is fixedly connected to a bushing, the central axis of the bushing is perpendicular to the transmission rod, and the bushing can be rotatably fitted outside the handle. The lower end of the transmission rod is movably connected to the swing end of the pressing lever through the bushing, the handle, and the handle.

[0012] It also includes a transmission rod support mechanism that temporarily keeps the transmission rod and the pressing swing rod in a parallel position.

[0013] The second handshake is a pole handle that is vertically connected to the transmission pole, and the pole handle and the transmission pole form a T-shape.

[0014] The second handshake part and the transmission upright are on the same straight line.

[0015] The length of the transmission upright is 30 to 70 centimeters.

[0016] It is also equipped with a floating bottom-touching upright rod. The upper end of the floating bottom-touching upright rod is fixedly connected to the swing end of the pressing swing rod. The floating bottom-touching upright rod moves up and down with the pressing swing rod. The floating bottom-touching upright rod is not equipped with a fastening connection mechanism to the patient's back lying pressure component.

[0017] When a patient is undergoing cardiopulmonary resuscitation (chest compressions), they must be in a supine position. The so-called patient back support component refers to the component that contacts the patient's back when the patient is lying flat; when the patient is lying on a bed, the back support component refers to the bed board; when the patient's back is resting on a block board, the back support component refers to that block board.

[0018] When using this invention, the patient lies flat on the back-pressing component or the ground, while the rescuer's posture is not parallel to the patient's. For example, the rescuer may be positioned next to the patient's chest and facing the patient's chest. Therefore, the patient's left-right direction may correspond to the rescuer's front-back direction.

[0019] In this application, the definitions of the horizontal and vertical directions of a cardiac compression device are based on the orientation of the patient while the device is in use. The horizontal direction refers to the left-right direction, which is the direction of the patient's body width (i.e., chest width). The vertical direction refers to the front-back direction, which is the direction of the patient's height. The vertical direction refers to the direction of the patient's chest thickness.

[0020] The lateral side is the side that is horizontally away from the patient's heart. The lower lateral side is the side that is horizontally away from the patient's heart and vertically downward. The medial side is the side that is horizontally close to the patient's heart. The lower medial side is the side that is horizontally close to the patient's heart and vertically downward.

[0021] In this application document, the floating bottom-contacting upright is a strip-shaped component. Because it moves up and down during operation, it is named "floating". And because the bottom end of the pole stops moving when it reaches the limit position, it is named "bottom-contacting". The whole is named "floating bottom-contacting upright".

[0022] In this application, the manual fixing bracket is a bracket whose position is fixed by human power, hence the name "manual fixing bracket".

[0023] This utility model has the following advantages and effects: I. Because this utility model is equipped with a transmission rod, it is suitable for rescuers to perform chest compressions in a standing position (without bending their knees) or a squatting or kneeling position (with bending their knees) as well. The standing position is particularly suitable for rescuers whose knees are difficult to bend for a long time. Therefore, it greatly expands the applicable places of the product. Many families with heart disease patients can keep it on hand, without worrying that there is only one rescuer at home or that the rescuer's knees are difficult to bend and therefore cannot use it.

[0024] Second, regardless of whether you choose to stand or squat / kneel to press, you can use the lever principle to save effort, greatly reduce the difficulty of pressing, and make the movements light and not tiring.

[0025] Third, this utility model is suitable for both single-person and two-person joint rescue operations.

[0026] Fourth, since the lower end of the transmission upright is movably connected to the swing end of the pressing lever, the transmission upright can be moved to a position parallel to the pressing crossbar in the folded state. This facilitates storage and reduces the size in the folded state. Furthermore, both the transmission upright and the pressing crossbar can be designed as telescopic structures, further reducing the space occupied in the folded state.

[0027] 5. The floating bottom-contacting pole can control the pressing depth. As long as a measuring sleeve is loosely fitted on the lower section of the floating bottom-contacting pole, the pressing depth can be displayed intuitively. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of the first specific embodiment of this utility model.

[0029] Figure 2 This is a partially exploded structural diagram of the first specific embodiment of this utility model.

[0030] Figure 3 This is a schematic diagram of a single-person usage method according to the first specific embodiment of this utility model.

[0031] Figure 4 This is a schematic diagram of another single-person use method according to the first specific embodiment of this utility model.

[0032] Figure 5 This is a schematic diagram of a two-person usage method according to the first specific embodiment of this utility model.

[0033] Figure 6 This is a schematic diagram of another two-person usage method according to the first specific embodiment of this utility model.

[0034] Figure 7 This is a three-dimensional structural diagram of the second specific embodiment of the present utility model.

[0035] Figure 8 This is a partially exploded structural diagram of the second specific embodiment of the present invention.

[0036] Figure 9 This is a front view structural diagram of the second specific embodiment of this utility model.

[0037] Figure 10This is a three-dimensional schematic diagram of the transmission upright in the third specific embodiment of this utility model.

[0038] Figure 11 This is a three-dimensional structural diagram of the fourth specific embodiment of the present utility model.

[0039] Figure 12 This is a schematic diagram of the split state of the fourth specific embodiment of this utility model.

[0040] Figure 13 This is a front view structural diagram of the fourth specific embodiment of this utility model.

[0041] Figure 14 This is a schematic diagram showing the changing state of the pressing swing arm and the transmission upright when they are parallel and side by side in the fourth specific embodiment of this utility model. Detailed Implementation Example 1

[0042] Figure 1 , Figure 2 , Figure 3 The dual-purpose CPR device shown includes a manual support frame 3, a pressing lever 2, and a pressing head 1. The pressing head 1 is connected to the middle part of the pressing lever 2. The pressing lever 2 includes a first section 21 and a second section 22, which are slidably connected to the first section 21, allowing the entire pressing lever 2 to extend and retract (i.e., extend when in use and retract when stored). The pressing lever 2 is connected to the manual support frame 3 by a pivot 30, which extends longitudinally. The pressing lever 2 is perpendicular to the swing axis 30, and the pressing lever 2 swings up and down relative to the manual support 3 around the swing axis 30. The pressing lever 2 also has a first grip for the rescuer to hold. The first grip is a lever handle 23 that is perpendicularly connected to the pressing lever 2. The lever handle 23 extends longitudinally and is connected to the swing end of the pressing lever 2 (i.e., the outer end of the second section 22 of the pressing lever). The lever handle 23 and the manual support 3 are located on opposite sides of the pressing head 1 in the lateral direction.

[0043] Figure 1 , Figure 2 , Figure 3 As shown, the bottom of the human-powered support 3 is also equipped with a foot pressure plate 6 for the rescuer's legs to hold down, such as... Figure 1 , Figure 3 As shown; the manual support frame 3 is also provided with a fixed handle 31 for the rescuer to hold with their wrist. The fixed handle 31 is fixedly installed in the middle of the manual support frame 3 and extends in the longitudinal direction.

[0044] Figure 1 , Figure 2 , Figure 3As shown, a transmission pole 8 is also provided. The transmission pole 8 includes a first section 81 and a second section 82. The first section 81 and the second section 82 are slidably connected so that the entire transmission pole 8 can extend and retract (i.e., it extends when in use and retracts when stored). The length of the transmission pole 8 after it is extended is 50 centimeters. The upper end of the first section 81 of the transmission pole has a second grip part 80 for the rescuer to hold. The second grip part 80 is located on the same straight line as the transmission pole 8. It can also be understood that the upper section of the transmission pole 8 serves as a handle for the rescuer to hold.

[0045] Figure 1 , Figure 2 , Figure 3 As shown, a movable connection structure is provided between the lower end of the transmission rod and the swing end of the pressing swing rod (i.e., the outer end of the second section 22 of the pressing swing rod). This movable connection structure refers to the fact that the lower end of the second section 82 of the transmission rod has a U-shaped fork 9, with the fork opening 90 of the U-shaped fork 9 facing downwards. When the lower end of the transmission rod 8 is connected to the swing end of the pressing swing rod 2, the swing end of the pressing swing rod (i.e., the outer end of the second section 22 of the pressing swing rod) is clamped in the fork opening 90 of the U-shaped fork. The U-shaped fork 9 is located on the lateral inner side of the swing rod handle 23. The swing rod handle 23 also serves as an anti-slip component to prevent the U-shaped fork 9 from slipping outwards along the pressing swing rod. When pressing, it can prevent the U-shaped fork 9 from slipping outwards along the pressing swing rod. Figure 3 The arrow in the middle slips out and disengages from the pressing lever 2 in the direction of arrow a.

[0046] Figure 1 , Figure 2 , Figure 3 As shown, a floating bottom-reaching support rod 4 is also provided. The floating bottom-reaching support rod 4 includes an upper section 41 and a lower section 42. The upper section 41 and the lower section 42 are slidably connected so that the entire floating bottom-reaching support rod 4 can move and extend before pressing to adapt to the needs of patients with different chest thicknesses. In addition, a length fixing mechanism is provided to temporarily fix the length of the entire floating bottom-reaching support rod. The upper end of the upper section 41 of the floating bottom-reaching support rod is fixedly connected to the swing end of the pressing swing rod 2 (i.e., the outer end of the second section 22 of the pressing swing rod). The entire floating bottom-reaching support rod 4 moves up and down with the pressing swing rod 2. The floating bottom-reaching support rod 4 is not provided with a fastening connection mechanism for fastening to the patient's back pressing component.

[0047] The above embodiment 1 is suitable for rescuers to perform chest compressions in a standing position where the knees do not need to be bent, or in a squatting or kneeling position where the knees need to be bent; it can be used by two people for joint rescue or by one person for individual rescue.

[0048] When performing CPR by a single person, with the compression head 1 aligned with the patient's heart, the rescuer 73 has two positions to choose from: In the first single-person position, the lower end of the transmission rod 8 is movably connected to the swing end of the compression lever 2. The rescuer 73 straddles the patient's chest, with both feet positioned on either side of the patient's chest. One foot is placed on the foot plate 6 of the manual support, and the rescuer's hand grasps the second grip 80 of the transmission rod 8. This drives the transmission rod 8 to move up and down, thereby moving the compression lever 2 and the compression head 1 up and down. Figure 3 As shown; in the above process, when the transmission rod 8 is pressed down, the U-shaped fork 9 drives the pressing lever 2 to swing downwards, and when the transmission rod 8 returns upwards after being pressed down, the elasticity of the chest causes the pressing lever 2 to swing upwards. That is, the main force for the upward swing of the pressing lever 2 can be the elasticity of the patient's chest, so the pressing head 1 will not detach from the patient's chest. In the second posture of single-person rescue compression, the transmission rod 8 is separated from the pressing lever 2 (that is, the transmission rod 8 is removed), the rescuer 73 kneels down, uses his knees to press down on the foot pressure plate 6, leans his torso forward, and holds the lever handle 23 of the pressing lever 2 with both hands. In this way, the pressing lever 2 can be moved up and down, which in turn drives the pressing head 1 to move up and down. Figure 4 As shown. The two methods of single-person rescue described above make full use of the rescuer's weight 73 pressing on the human-supported frame 3, and can also utilize the lever principle to make the rescuer's pressing action less strenuous.

[0049] When two people work together to perform the rescue, the compression head 1 should be aimed at the patient 71's heart. One person, acting as the assistant rescuer 72, is responsible for securing the manual fixation brace 3, while the other person, acting as the compression rescuer 73, performs chest compressions. There are several options for the assistant rescuer 72 to secure the manual fixation brace 3. One option is for the assistant rescuer 72 to stand and use their feet to press down on the foot plate 6 of the manual fixation brace, such as... Figure 6 As shown, the second posture involves the rescuer 72 squatting down and using their hands to press down the fixing handle 31 of the human-powered fixing bracket 3, as shown. Figure 5 As shown. There are two pressing postures for the rescuer 73 to drive the pressing lever 2. The first posture involves connecting the transmission rod 8 to the pressing lever 2, with the rescuer 73 standing and gripping the second handgrip 80 of the transmission rod 8. This drives the transmission rod 8 to move up and down, thereby causing the pressing lever 2 and the pressing head 1 to move up and down. Figure 5 As shown; the second posture is to separate the transmission rod 8 from the pressing lever 2 (that is, to remove the transmission rod 8), and the rescuer 73 squats down and holds the lever handle 23 of the pressing lever 2. The rescuer 73's arm drives the lever handle 23, the pressing lever 2, and the pressing head 1 to move up and down, as shown. Figure 6 As shown.

[0050] In the first embodiment described above, the length of the transmission rod 8 can be changed to 30 cm, 40 cm, 60 cm, or 70 cm. For telescopic transmission rods, the length of the transmission rod is considered based on its length in the fully extended state (i.e., in the use state). Example 2

[0051] Figure 7 , Figure 8 , Figure 9 As shown, in Embodiment 2, the first grip portion 23 extends laterally, and the first grip portion 23 and the pressing lever 2 are on the same straight line. This can also be understood as the section of the pressing lever 2 near the swing end serving as a handle for the rescuer to grip. In Embodiment 2, the swing end of the pressing lever 2 also has an upwardly protruding anti-slip member 93. This anti-slip member 93 prevents the U-shaped fork 9 from slipping outwards along the pressing lever 2, i.e., prevents the U-shaped fork 9 from slipping outwards during forceful pressing. Figure 9 Arrow b in the figure slips out and disengages from the pressing lever 2; in addition, in embodiment two, the length of the transmission rod 8 is 35 cm, which is relatively short, so it does not need to be set as two retractable sections, but only a fixed section.

[0052] The remaining aspects of the structure of Example 2 are the same as those of Example 1. Example 3

[0053] In embodiment three, the second grip is a pole handle 80 that is perpendicularly connected to the transmission pole 8. The pole handle 80 and the transmission pole 8 form a T-shape, as shown below. Figure 10 As shown. The cross-section of the transmission rod 8 is circular. The first section 81 and the second section 82 of the transmission rod can rotate relative to each other, so that the extension direction of the rod handle 80 can be freely selected according to the rescuer's orientation (adjusted by rotating around the central axis of the transmission rod 8).

[0054] The remaining aspects of the structure of Example 3 are the same as those of Example 1. Example 4

[0055] Figure 11 , Figure 12 , Figure 13As shown, in Embodiment 4, the second grip is a handle 80 perpendicularly connected to the transmission rod 8, forming a T-shape with the transmission rod 8. The transmission rod 8 has a circular cross-section, and the first segment 81 and the second segment of the transmission rod can rotate relative to each other. Furthermore, in Embodiment 4, the movable connection between the lower end of the transmission rod 8 and the swing end of the pressing swing rod refers to a bushing 5 fixedly connected to the lower end of the transmission rod 8. The central axis of the bushing 5 is perpendicular to the transmission rod 8, and the bushing 5 can rotatably fit around the handle 23 of the swing rod (i.e., the inner diameter of the bushing 5 and the outer diameter of the handle 23 of the swing rod form a loose fit). The lower end of the transmission rod 8 is movably connected to the swing end of the pressing swing rod 2 through the bushing 5 and the handle 23. Moreover, in Embodiment 4, the floating bottom-touching rod 4 is not divided into two segments; it is only one segment and its length cannot be extended or retracted. Figure 11 As shown. In embodiment four, a short pin 51 is fixedly connected to the second section 22 of the pressing swing arm. This short pin 51 forms a transmission pole support mechanism that temporarily keeps the transmission pole 8 and the pressing swing arm 2 in a parallel position, as shown. Figure 12 , Figure 13 , Figure 14 As shown.

[0056] The remaining aspects of the structure of Example 4 are the same as those of Example 1.

[0057] In the fourth embodiment described above, modular pads 40 can be placed below the floating bottom-reaching support 4. This allows for adjustment of the stacking height of the modular pads 40 to accommodate patients with varying chest thicknesses, ensuring that the compression depth meets requirements and can be precisely controlled. Figure 11 , Figure 13 As shown.

[0058] In the fourth embodiment described above, if the rescuer 73 wants to squat down and grasp the first handshake 23 to drive the pressing head to swing up and down, the bushing 5 can be removed from the swing arm handle 23 to move the transmission rod 8 away. Figure 12 As shown; alternatively, the transmission rod 8 can be rotated to a position parallel to the pressing swing arm 2, and the short pin 51 can be used to temporarily fix the transmission rod 8 and the pressing swing arm 2 parallel and side by side, as shown. Figure 14 As shown.

[0059] In the stored state of the above embodiment four, the transmission rod 8 and the bushing 5 can be rotated around the rocker handle 23 so that the transmission rod 8 and the pressing rocker 2 are parallel and side by side. This can save space occupied by the appliance in the stored state, and the conversion between the stored state and the use state is very convenient and fast.

[0060] In the above embodiment four, the transmission pole support mechanism can also be a bushing limiting mechanism that limits the rotation angle of the bushing 5 around the swing arm handle 23. When the transmission pole 8 rotates to be parallel to the pressing swing arm 2, the bushing limiting mechanism limits the bushing 5 to continue rotating around the swing arm handle 23, so the transmission pole 8 maintains a posture parallel to the pressing swing arm 2.

Claims

1. A dual-purpose chest compression device, comprising a manual fixation bracket, a compression lever, and a compression head, wherein the compression head is connected to the compression lever, the compression lever is connected to the manual fixation bracket via a swing shaft, the swing shaft extends longitudinally, the compression lever is perpendicular to the swing shaft, and the compression lever swings up and down relative to the manual fixation bracket around the swing shaft; the compression lever also has a first grip for the rescuer to hold, the first grip and the manual fixation bracket being located on opposite sides of the compression head laterally; characterized in that: The manual support frame is equipped with a foot-pressing component that can be pressed down by the rescuer's legs; it is also equipped with a transmission upright, the upper end of which has a second hand grip that can be held by the rescuer, and the lower end of the transmission upright is connected to the swing end of the pressing swing arm by a movable connection structure.

2. The dual purpose cardiac compressor of claim 1, wherein: The movable connection structure between the lower end of the transmission rod and the swing end of the pressing swing rod refers to the fact that the lower end of the transmission rod is provided with a U-shaped fork, with the fork opening facing downwards; when the lower end of the transmission rod is connected to the swing end of the pressing swing rod, the swing end of the pressing swing rod is clamped in the fork opening of the U-shaped fork.

3. The dual purpose cardiac compressor of claim 2, wherein: The swing end of the pressing lever also has an anti-slip component to prevent the U-shaped fork from slipping off along the pressing lever.

4. The dual purpose cardiac compressor of claim 3, wherein: The first grip is a lever handle that is vertically connected to the pressing lever. This lever handle also serves as an anti-slip component to prevent the blocking U-shaped fork from slipping off the pressing lever.

5. The dual purpose cardiac compressor of claim 1, wherein: The first grip is a handle that is perpendicularly connected to the pressing lever, and the extension direction of the handle is longitudinal. The movable connection structure between the lower end of the transmission rod and the swing end of the pressing lever refers to the fact that the lower end of the transmission rod is fixedly connected to a bushing, the central axis of the bushing is perpendicular to the transmission rod, and the bushing can be rotatably fitted outside the handle. The lower end of the transmission rod is movably connected to the swing end of the pressing lever through the bushing, the handle, and the handle.

6. The dual purpose cardiac compressor of claim 5, wherein: It also includes a transmission rod support mechanism that temporarily keeps the transmission rod and the pressing swing rod in a parallel position.

7. A dual purpose cardiac compressor according to any one of claims 1 to 6, characterised in that: The second handshake is a pole handle that is vertically connected to the transmission pole, and the pole handle and the transmission pole form a T-shape.

8. The dual purpose cardiac compressor according to any one of claims 1 to 6, characterized in that: The second handshake part and the transmission upright are on the same straight line.

9. The dual purpose cardiac compressor according to any one of claims 1 to 6, wherein: The length of the transmission upright is 30 to 70 centimeters.

10. The dual purpose cardiac compressor according to any one of claims 1 to 6, characterized in that: It is also equipped with a floating bottom-touching upright rod. The upper end of the floating bottom-touching upright rod is fixedly connected to the swing end of the pressing swing rod. The floating bottom-touching upright rod moves up and down with the pressing swing rod. The floating bottom-touching upright rod is not equipped with a fastening connection mechanism to the patient's back lying pressure component.

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