A portable pediatric defibrillator

Abstract

This invention belongs to the field of cardiac defibrillator technology and discloses a portable pediatric cardiac emergency defibrillator. It includes a housing with a flip-top cover. A plug and electrode pads are respectively placed inside the housing cavity. A pair of electrode pads are provided. It also includes a protective mechanism connected to the inner cavity of the housing. This invention facilitates the rapid removal of the electrode pads through the cooperation of a squeezing rod and a push-pull rod. When the cover is opened, the push-pull rod pulls the limiting sleeve, rotating it at a certain angle so that the opening of the limiting sleeve is tilted upwards. The squeezing rod remains in contact with the groove wall and applies radial pressure, contracting towards the inner cavity of the limiting sleeve. Ultimately, this causes a pair of arc-shaped blocks to rotate away from the electrode pads, releasing the arc-shaped blocks from restricting the electrode pads. The release of the limiting blocks and the oblique positioning of the electrode pads allow rescuers to quickly remove a pair of electrode pads after opening the cover for cardiac defibrillation, effectively improving emergency rescue efficiency.

Description

Technical Field

[0001] This invention belongs to the field of cardiac defibrillator technology, specifically a portable pediatric cardiac emergency defibrillator. Background Art

[0002] While traditional portable defibrillators are small and portable, in order to suit the physiological characteristics of children and improve the safety and effectiveness of emergency treatment, it is necessary to design a portable pediatric defibrillator with a lower energy output range and weight, and smaller electrode pads.

[0003] A portable cardiac defibrillator for cardiac surgery, with prior art application number CN202411415897.4, includes a defibrillator body. A terminal block is provided on one side of the defibrillator body. A first receiving groove is formed on the surface of the defibrillator body, and a first door is rotatably connected to the first receiving groove. A first embedded handle is formed on the surface of the first receiving groove. A control panel is fixedly installed inside the first receiving groove, and a display is installed inside the first receiving groove. A second receiving groove is formed on the other side of the defibrillator body, and a shelf is installed inside the second receiving groove, enabling docking. The assembly opens the second door to facilitate the removal and use of the electrode pads. When carrying the device, the handle is rotated to move the grip out of the third receiving slot, thus facilitating the overall carrying of the defibrillator. Although the invention optimizes the defibrillator handle and facilitates electrode pad removal by quickly opening the door, the electrode pads are typically simply placed inside the housing. When the defibrillator is portable, the electrode pads are prone to collisions with the housing during movement, potentially causing scratches on the surface and reducing conductivity. Therefore, a better protection mechanism for the electrode pads is needed. Summary of the Invention

[0004] To address the problem mentioned in the background art that the electrode pads are prone to colliding with the internal cavity of the defibrillator during movement, the present invention provides a portable pediatric cardiac emergency defibrillator.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A portable pediatric cardiac defibrillator includes a housing with a flip cover on the top. A plug and electrode pads are respectively placed in the inner cavity of the housing. The electrode pads are arranged in pairs. The device also includes a protective mechanism and a self-energizing mechanism. The protective mechanism is connected to the inner cavity of the housing. The self-energizing mechanism is connected to both the housing and the protective mechanism. The protective mechanism includes a limiting member and an unlocking member.

[0007] The unlocking component includes a pair of pressing rods, and the inner cavity of the housing is provided with a pair of arc-shaped guide grooves. The ends of the pair of pressing rods slide against each other within the arc-shaped guide grooves.

[0008] Optionally, the limiting member includes a limiting sleeve rotatably connected to the inner cavity of the housing, a pair of push-pull rods rotatably connected to the side of the limiting sleeve facing the flip cover, and the side of the pair of push-pull rods away from the limiting sleeve rotatably connected to the flip cover.

[0009] Optionally, the limiting sleeve has a pair of opening slots on the side away from the push-pull rod, and the limiting sleeve is movably sleeved on the outer wall of the electrode sheet.

[0010] Optionally, each of the pair of opening slots is slidably connected with an arc-edge block, and the pair of arc-edge blocks are rotatably connected to the limiting sleeve via a rotating shaft.

[0011] Optionally, the limiting sleeve has extrusion grooves on both sides inside, and a pair of extrusion rods pass through the end of the limiting sleeve and are slidably connected in the extrusion grooves respectively. A return spring is elastically connected between the end of the extrusion rod extending into the extrusion groove and the inner wall of the extrusion groove.

[0012] Optionally, a grooved plate is fixedly connected to the lower end of the rotating shaft. The grooved plate has an elongated slot in its inner cavity. A sliding block is movably connected to the grooved plate via a sliding column. Both ends of the sliding column are fixedly connected to the inner cavity of the sliding block. The outer wall of the sliding column is slidably sleeved in the elongated slot. The outer wall of the sliding block is fixedly connected to the extrusion rod.

[0013] Optionally, the self-energizing mechanism includes a connecting rod, the side of the limiting sleeve away from the opening slot is rotatably connected to the connecting rod, the connecting rod is movably connected to a rotating plate via a ball joint, a support plate is rotatably connected to the middle of the rotating plate, and the bottom of the support plate is fixed to the inner cavity of the housing.

[0014] Optionally, a positioning sleeve is rotatably connected to the side of the rotating plate away from the ball axis, and the positioning sleeve is slidably fitted into the middle of the plug.

[0015] Optionally, the height of the support plate is set to H1, the thickness of the plug is set to H2, and H1>H2.

[0016] Optionally, a handle is fixed to the side wall of the housing, and the rotation angle range of the flip cover in the open state is 90 degrees to 180 degrees.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention improves the protection mechanism of the electrode pads by setting up a limiting sleeve and arc-edge blocks. The edge of the electrode pads is limited by a pair of arc-edge blocks, ensuring that the electrode pads are properly positioned in the inner cavity of the limiting sleeve. When the housing is closed, the limiting sleeves lie flat in the inner cavity of the housing. The limiting sleeves are kept relatively fixed by the abutment of the push-pull rod and the flip cover, preventing the electrode pads from colliding with the inner cavity when the defibrillator moves. This solves the problem of potential scratches on the electrode pad surface and reduced conductivity.

[0019] This invention facilitates the rapid retrieval of electrode pads by incorporating a combination of a squeezing rod and a push-pull rod. Simultaneously with opening the cover, the push-pull rod pulls the limiting sleeve, rotating it at a certain angle so that the opening of the limiting sleeve tilts upwards. Meanwhile, the squeezing rod remains in contact with the groove wall, applying radial pressure and contracting towards the inner cavity of the limiting sleeve. Ultimately, this causes a pair of arc-edged blocks to rotate away from the electrode pads, releasing the arc-edged blocks from restricting the electrode pads. This release and oblique positioning of the electrode pads allows rescuers to quickly remove a pair of electrode pads after opening the cover for defibrillation, effectively improving emergency response efficiency.

[0020] This invention saves rescue time by using a combination of linkage and rotating plate structures. During the rotation of the limiting sleeve, by pulling one side of the rotating plate upward, the other side of the rotating plate is pressed down under the action of the lever principle, so that the plug and interface are connected to each other, and the power supply to the electrode plate is turned on. The power is automatically plugged in when the cover is opened, without the need for the rescuer to plug in the power, simplifying the operation process. Furthermore, when the cover is closed, the plug and interface remain separated, which can extend the service life of the electrode plate and reduce safety risks. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the opening structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0023] Figure 3 This is a schematic diagram of the cover structure of the present invention;

[0024] Figure 4 This is a side-sectional three-dimensional structural diagram of the present invention;

[0025] Figure 5 This is a schematic diagram showing the structural fit between the limiting sleeve and the extrusion rod of the present invention;

[0026] Figure 6 This is a schematic diagram showing the structural fit between the limiting sleeve and the arc-edge block of the present invention;

[0027] Figure 7 This is a schematic diagram showing the structural fit between the extrusion rod and the rotating shaft of the present invention;

[0028] Figure 8 This is a schematic diagram showing the structural fit between the groove plate and the sliding block of the present invention;

[0029] Figure 9 This is a schematic diagram showing the positional relationship of the limiting sleeve in the open state of the present invention;

[0030] Figure 10 This is a schematic diagram showing the positional relationship of the limiting sleeve in the closed state of the present invention;

[0031] Figure 11 For the present invention Figure 10 A magnified schematic diagram of the structure at point B in the middle;

[0032] Figure 12 This is a schematic diagram showing the positional relationship of the plug in the closed state of the present invention.

[0033] In the picture:

[0034] 1. Housing; 2. Handle; 3. Flip cover; 4. Plug; 5. Electrode plate; 6. Protective mechanism; 61. Limiting component; 611. Limiting sleeve; 612. Push-pull rod; 613. Opening slot; 62. Unlocking component; 621. Extrusion rod; 622. Arc edge block; 623. Rotating shaft; 624. Sliding block; 625. Return spring; 626. Sliding column; 627. Slot plate; 628. Extrusion groove; 629. Long waist hole slot; 7. Self-energizing mechanism; 71. Connecting rod; 72. Rotating plate; 73. Ball shaft; 74. Support plate; 75. Positioning sleeve. Detailed Implementation

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] like Figures 1 to 12 As shown, the present invention provides a portable pediatric cardiac defibrillator, including a housing 1, a flip cover 3 mounted on the top of the housing 1, a plug 4 and electrode pads 5 respectively placed in the inner cavity of the housing 1, the electrode pads 5 being provided in pairs, and further including:

[0037] Protective mechanism 6 is connected to the inner cavity of housing 1;

[0038] The self-energizing mechanism 7 is connected to both the housing 1 and the protective mechanism 6.

[0039] The protective mechanism 6 includes a limiting member 61 and an unlocking member 62; the unlocking member 62 includes a pair of pressing rods 621, and the inner cavity of the housing 1 is provided with a pair of arc-shaped guide grooves (such as...). Figure 5 As shown, the ends of a pair of extrusion rods 621 are both abutted and slid within the arc-shaped guide groove. A handle 2 is fixed to the side wall of the housing 1, and the rotation angle range of the flip cover 3 in the open state is 90 degrees to 180 degrees.

[0040] Using the above scheme: one side of the flip cover 3 is rotatably connected to the edge of the housing 1, and the other side of the flip cover 3 is snapped onto the housing 1 by a latch. The arrow on the outer wall of the flip cover 3 indicates the opening direction (e.g., Figure 3 As shown, a heart rate display screen is fixed to the side of the housing 1 near the handle 2. The plug 4 and electrode pads 5 are electrically connected to each other. Several function keys are installed on the side of the inner cavity of the housing 1 away from the handle 2, used for functions such as turning the defibrillator on and off, setting data, and voice broadcasting. An interface is provided on the side of the inner cavity of the housing 1 away from the limiting sleeve 611 for connecting the plug 4 to the power supply. Both the surface of the housing 1 and the flip cover 3 are covered with operation guide stickers. The above are all existing technologies and will not be described in detail here. When the limiting sleeve 611 rotates in the inner cavity of the housing 1, as... Figure 5 As shown, the arc-shaped guide groove inside the housing 1 causes the end wall of the extrusion rod 621 to slide under constraint. Since the sliding end of the extrusion rod 621 always maintains close contact with the wall of the arc-shaped guide groove and continuously applies radial pressure during the movement, this interaction force will generate an axial component force on the extrusion rod 621. In terms of mechanical principle, this component force can be decomposed into two components: radial and axial. The radial component ensures stable contact between the extrusion rod 621 and the groove wall, while the axial component pushes the extrusion rod 621 to move along its axial direction. As the limiting sleeve 611 continues to rotate, the extrusion rod 621 gradually contracts into the inner cavity of the limiting sleeve 611 under the constraint of the guide groove, completing the expected displacement action. The continuous contact pressure between the extrusion rod 621 and the groove wall enables it to automatically compensate for mechanical wear or assembly errors and maintain long-term stable working performance.

[0041] like Figure 4 and Figure 5 As shown, the limiting member 61 includes a limiting sleeve 611 rotatably connected to the inner cavity of the housing 1. A pair of push-pull rods 612 are rotatably connected to the side of the limiting sleeve 611 facing the flip cover. The side of the pair of push-pull rods 612 away from the limiting sleeve 611 is rotatably connected to the flip cover 3. A pair of open slots 613 are provided on the side of the limiting sleeve 611 away from the push-pull rods 612. The limiting sleeve 611 is movably sleeved on the outer wall of the electrode sheet 5.

[0042] Using the above scheme: The size of the limiting sleeve 611 can be adapted to the actual internal cavity size of the shell 1 and the size of the electrode pad 5. As long as the flip cover 3 is closed, the limiting sleeve 611 is placed flat in the internal cavity of the shell 1 under the push of the push-pull rod 612. At this time, the limiting sleeve 611 will not be displaced even if the defibrillator is moved arbitrarily by the handle 2. With the help of a pair of arc-shaped blocks 622, the edge of the electrode pad 5 is abutted, so that the electrode pad 5 located in the internal cavity of the limiting sleeve 611 is doubly protected by the shell 1 and the limiting sleeve 611, and will not be accidentally collided during the movement of the defibrillator. When the flip cover 3 is opened, the push-pull rod 612 pulls and rotates the limiting sleeve 611 to a tilted state. The electrode pad 5 is also in a tilted state. Through the groove set at the opening of the limiting sleeve 611, the edge of the electrode pad 5 can be exposed, making it easy for rescuers to remove the electrode pad 5 from the limiting sleeve 611. The opening slots 613 symmetrically opened on both sides of the limiting sleeve 611 of the closed structure form a precise fit with the rotation trajectory of the arc edge block 622. The slot adopts a bidirectional opening design, and the slot width extends to the edge of the limiting sleeve 611 and communicates with its inner cavity, ensuring that the arc edge block 622 obtains radial movement margin in the initial position. In addition, this slot design supports the replacement of arc edge blocks 622 of different specifications to adapt to electrode plates 5 of different lengths. It can be combined with surface hardening treatment process to improve the wear resistance of key contact surfaces and extend the overhaul cycle of the device.

[0043] like Figure 6 and Figure 7 As shown, an arc-shaped block 622 is slidably connected to each of the two open slots 613. A rotating shaft 623 is connected to the inner side of the two arc-shaped blocks 622. The end of the rotating shaft 623 is rotatably mounted on the limiting sleeve 611. An extrusion groove 628 is provided on both sides of the inner side of the limiting sleeve 611. A pair of extrusion rods 621 pass through the end of the limiting sleeve 611 and are slidably mounted in the extrusion grooves 628 respectively. A return spring 625 is connected between the end of the extrusion rod 621 extending into the extrusion groove 628 and the inner wall of the extrusion groove 628. The two ends of the return spring 625 are respectively connected to the inner wall of the extrusion groove 628 and the extrusion rod 621.

[0044] like Figure 7 and Figure 8 As shown, a grooved plate 627 is fixedly connected to the lower end of the rotating shaft 623. The inner cavity of the grooved plate 627 is provided with an elongated slot 629. The grooved plate 627 is movably connected to a sliding block 624 via a sliding column 626. The two ends of the sliding column 626 are fixedly connected to the inner cavity of the sliding block 624. The outer wall of the sliding column 626 is slidably sleeved in the elongated slot 629. The outer wall of the sliding block 624 is fixedly connected to the extrusion rod 621.

[0045] Using the above scheme: When the extrusion rod 621 drives the sliding block 624 to move smoothly along the axial direction, the sliding column 626 embedded at its front end applies a continuous extrusion force to the groove plate 627, causing the sliding column 626 to form rolling friction in the inner cavity of the groove plate 627. This pressure transmission mechanism drives the double-sided arc-shaped blocks 622 to rotate synchronously around the rotating shaft 623. The contact angle between the arc-shaped working surface of the blocks 622 and the electrode plate 5 near the electrode plate 5 gradually decreases, eventually achieving a zero-interference limit release state. During this process, the extrusion rod 621 is always located below the rotating shaft 623 and does not obstruct the rotating shaft 623. The rotation of 23 causes the arc-edge block 622 to rotate within the cavity of the limiting sleeve 611 via the upper end of the rotating shaft 623, thereby facilitating the application of pressure from the sliding block 624 to the slot plate 627. The offset layout of the sliding column 626 near the electrode plate 5 (8mm from the center line of the rotating shaft) compresses the operating space by 30% while maintaining mechanical balance, making it particularly suitable for compact device designs. The rotation trajectory of the arc-edge block 622 is topologically optimized, and its centroid projection always falls within the support surface of the limiting sleeve 611, effectively suppressing high-frequency vibration (measured vibration attenuation rate > 75%).

[0046] like Figure 10 and 11 As shown, the self-energizing mechanism 7 includes a connecting rod 71. One end of the connecting rod 71 is rotatably connected to the side of the limiting sleeve 611 away from the opening slot 613. The connecting rod 71 is movably connected to the rotating plate 72 via the ball shaft 73. The middle part of the rotating plate 72 is rotatably connected to the support plate 74 via the connecting plate rotating shaft 721. The bottom of the support plate 74 is fixed to the inner cavity of the housing 1.

[0047] like Figure 2 and Figure 12 As shown, a positioning sleeve 75 is rotatably connected to the side of the rotating plate 72 away from the ball shaft 73, and the positioning sleeve 75 is slidably sleeved in the middle of the plug 4; the height of the support plate 74 is set to H1, the thickness of the plug 4 is set to H2, and H1>H2.

[0048] The above scheme is adopted: a sliding groove 711 is provided on the connecting rod 71 corresponding to the position of the ball shaft 73. The ball shaft 73 is composed of a ball 731 and a sliding rod 732. One end of the sliding rod 732 is connected to the ball 731, and the other end is connected to the rotating plate 72. When the connecting rod 71 pulls the rotating plate 72 through the ball shaft 73, since the sliding rod 732 can slide in the sliding groove 711, the lateral tension of the rotational displacement of the connecting rod 71 cannot be applied to the rotating plate 72. The remaining radial tension can pull one side of the rotating plate 72 upward, causing the rotating plate 72 to produce a vertical displacement, thereby performing the insertion and removal operation of the plug 4. When the rotating plate 72 is kept in a horizontal state, such as Figure 11 H1>H2 indicates that the support plate 74 is higher than the plug 4, and the specific height range is the insertion thickness of the plug 4. It can be adapted according to the actual thickness of the plug 4, ensuring that the plug 4 is located above the interface and is in a power-off state so that it can be plugged in and used immediately.

[0049] Working principle and usage process of this invention:

[0050] First, when not in use, the flip cover 3 is snapped onto the top of the housing 1, and a pair of electrode plates 5 are stacked on the inner wall of the limiting sleeve 611. The edges of the electrode plates 5 are limited by a pair of arc-edge blocks 622, ensuring that the electrode plates 5 are precisely snapped into the inner cavity of the limiting sleeve 611. When the housing 1 is closed, the limiting sleeve 611 is laid flat in the inner cavity of the housing 1. The limiting sleeve 611 is kept relatively fixed by the abutment of the push-pull rod 612 and the flip cover 3, and will not move up and down, thereby improving the protection of the electrode plates 5 and preventing the electrode plates 5 from being damaged by collision.

[0051] Secondly, when a child experiences cardiac arrest requiring emergency treatment, the rescuer holds handle 2 and places the defibrillator next to the child. By opening the flip cover 3, the push-pull rod 612 moves synchronously with the flip cover 3, simultaneously pulling the limiting sleeve 611 and rotating it at a certain angle so that the opening of the limiting sleeve 611 tilts upward. When the limiting sleeve 611 rotates around a fixed axis, the end of the compression rod 621 slides along the arc guide groove. Because the compression rod 621 always maintains contact with the groove wall and applies radial pressure, it causes axial displacement, resulting in the compression rod 621 contracting into the inner cavity of the limiting sleeve 611, thereby compressing it. The internal return spring 625, at this time, the sliding block 624 fixed on the compression rod 621 also moves axially, and the sliding column 626 applies axial compression force to the groove plate 627, causing the sliding column 626 to slide in the inner cavity of the groove plate 627, and drive the groove plate 627 to rotate around the axis 623, so that the arc edge block 622 also rotates around the axis 623, and finally causes the pair of arc edge blocks 622 to rotate away from the electrode plate 5, releasing the arc edge block 622 from the electrode plate 5. At this time, the limiting sleeve 611 and the electrode plate 5 are tilted upward, so that the rescuer can quickly remove the pair of electrode plates 5 and perform cardiac defibrillation.

[0052] Furthermore, during the rotation of the limiting sleeve 611, the connecting rod 71 on the side wall can also be pulled. The connecting rod 71 is displaced by the radial tension of the rotation. Part of the radial tension drives the ball shaft 73 to slide in the groove of the connecting rod 71. The remaining radial tension can pull one side of the rotating plate 72 upward. With the support of the support plate 74, under the action of the lever principle, the other side of the rotating plate 72 is pressed down, which simultaneously presses down the positioning sleeve 75 and the plug 4 inside, so that the plug 4 is plugged into the interface, and the power supply of the electrode plate 5 is connected. The power is automatically plugged in when the cover is opened, without the rescuer having to perform the power-plugging operation, saving rescue time. Moreover, after the rescue is completed, when the flip cover 3 is closed, the operation is reversed according to the above principle, so that the plug 4 is automatically pulled out from the interface and is located above the interface, always in a ready-to-plug state, which is convenient for the next power-plugging use.

[0053] Finally, whenever the flip cover 3 is opened, the electrode pad 5 can be rotated to the tilted position, and the power supply to the electrode pad 5 is automatically turned on. The rescuer uses the electrode pad 5 to attach it to the correct position on the child's body and delivers an electric shock through the function key on the housing 1. This is combined with chest compressions to perform defibrillation. After the operation is completed, a new electrode pad 5 needs to be replaced to ensure that the defibrillator is always ready. After the flip cover 3 is closed, the limiting sleeve 611 is pushed and rotated to reset by the push-pull rod 612. The squeezing rod 621 is reset by the elastic force of the reset spring 625, causing the arc edge block 622 to rotate in the opposite direction to reset, limiting the new electrode pad 5 and ensuring the fit of the electrode pad 5 in the inner cavity of the housing 1. This effectively prevents the electrode pad 5 from moving and colliding. The plug 4 is also returned to the ready-to-connect state so that the device can be used for the next emergency operation at any time.

[0054] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A portable pediatric cardiac defibrillator, comprising a housing, a flip-top mounted on the top of the housing, and a plug and electrode pads respectively placed in the inner cavity of the housing, wherein a pair of electrode pads are provided, characterized in that: It also includes a protective mechanism, which is connected to the inner cavity of the housing, and the protective mechanism includes a limiting member and an unlocking member; The unlocking component includes a pair of pressing rods, and the inner cavity of the housing is provided with a pair of arc-shaped guide grooves. The ends of the pair of pressing rods are both abutted and slid within the arc-shaped guide grooves. The limiting component includes a limiting sleeve rotatably connected to the inner cavity of the housing. A pair of push-pull rods are rotatably connected to the side of the limiting sleeve facing the flip cover, and the side of the pair of push-pull rods away from the limiting sleeve is rotatably connected to the flip cover. The limiting sleeve has a pair of opening slots on the side away from the push-pull rod, and the limiting sleeve is movably sleeved on the outer wall of the electrode sheet; Each pair of opening slots is slidably connected with an arc-edge block, and the pair of arc-edge blocks are rotatably connected to the limiting sleeve via a rotating shaft; Both sides of the inner side of the limiting sleeve are provided with extrusion grooves. A pair of extrusion rods pass through the end of the limiting sleeve and are slidably connected in the extrusion grooves respectively. A return spring is elastically connected between the end of the extrusion rod extending into the extrusion groove and the inner wall of the extrusion groove. The lower end of the rotating shaft is fixedly connected to a groove plate, and the inner cavity of the groove plate is provided with an elongated slot. The groove plate is movably connected to a sliding block via a sliding column. The two ends of the sliding column are fixedly connected to the inner cavity of the sliding block, and the outer wall of the sliding column is slidably sleeved in the elongated slot. The outer wall of the sliding block is fixedly connected to the extrusion rod.

2. The portable pediatric cardiac defibrillator according to claim 1, characterized in that: The portable pediatric cardiac defibrillator also includes a self-energizing mechanism. The self-energizing mechanism is connected to both the housing and the protective mechanism. The self-energizing mechanism includes a connecting rod. The connecting rod is rotatably connected to the side of the limiting sleeve away from the opening slot. The connecting rod is movably connected to a rotating plate via a ball joint. A support plate is rotatably connected to the middle of the rotating plate. The bottom of the support plate is fixed to the inner cavity of the housing.

3. The portable pediatric cardiac defibrillator according to claim 2, characterized in that: A positioning sleeve is rotatably connected to the side of the rotating plate away from the ball shaft, and the positioning sleeve is slidably fitted into the middle of the plug.

4. The portable pediatric cardiac defibrillator according to claim 2, characterized in that: The height of the support plate is set to H1, and the thickness of the plug is set to H2, where H1 > H2.

5. The portable pediatric cardiac defibrillator according to claim 1, characterized in that: The side wall of the housing is fixed with a handle, and the rotation angle of the flip cover in the open state ranges from 90 degrees to 180 degrees.

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