Radial artery compressor for critical patient in cardiology department

Abstract

The application provides a radial artery compressor for critical patients in a cardiology department, and belongs to the technical field of medical devices. The radial artery compressor comprises a fixing plate, a bandage is arranged on the outer side of the fixing plate, a pressing assembly is further arranged, the pressing assembly is used for pressing and stopping bleeding at a hemostatic point of a radial artery of a patient, and the pressing assembly is connected with the fixing plate. The pressing assembly comprises a knob rotatably connected in the fixing plate, a rotating rod is threadedly connected in the knob, a connecting plate is fixedly connected to the bottom end of the rotating rod, slide rods are symmetrically and slidably connected in the connecting plate, and the two ends of the slide rods penetrate through the connecting plate and are fixedly connected with compression heads. The application adds a pressing and rubbing assembly to the pressing assembly, intermittent compression and release of the hemostatic point can be realized, the position of the pressing and rubbing assembly does not need to be adjusted, the pressing and rubbing can be directly performed after release, the operation process is simplified, secondary wearing is avoided, the continuous pressing of the hemostatic point without an empty window period can be ensured, and risks such as thrombosis and vascular occlusion can be prevented.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a radial artery compressor for critically ill patients in the cardiology department. Background Technology

[0002] In the clinical diagnosis and treatment of cardiovascular diseases in modern times, percutaneous radial artery puncture has become the preferred approach for interventional cardiology due to its significant advantages such as minimal trauma and rapid postoperative recovery. However, hemostasis and care of the puncture site after the procedure are crucial to ensuring patient safety and avoiding complications.

[0003] Currently, the commonly used radial artery compressor is a spiral compression type arterial hemostat, which is fixed to the wrist with a strap and then rotated using a spiral handle to apply downward pressure to the puncture site of the radial artery to achieve hemostasis. Because the compressor is worn for a long time, continuous and complete occlusion of blood flow will significantly increase the risk of radial artery occlusion and thrombosis. Therefore, it is necessary to intermittently release the pressure on the radial artery to achieve effective hemostasis while minimizing the risk of thrombosis, vascular occlusion, and limb ischemia. Currently, when releasing the radial artery, the compressor must be removed first and then pressed with a finger. This method is not only cumbersome and requires re-wearing, but also has a window period during the operation, which affects the hemostatic effect. In addition, existing radial artery compressors do not have a massage function to prevent thrombosis or vascular occlusion. Therefore, this application provides a radial artery compressor for critically ill patients in the cardiology department to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by this invention is to provide a radial artery compressor for critically ill patients in the cardiology department. A kneading component is added to the compression component, allowing for intermittent compression and release of the hemostasis point without adjusting the position of the kneading component. After release, kneading can be performed directly, simplifying the operation process, avoiding secondary wearing, and ensuring continuous compression of the hemostasis point without a gap period. This also prevents risks such as thrombosis or vascular occlusion. This addresses the problems of existing compressors requiring disassembly and subsequent finger compression when released, which creates a gap period, and the lack of kneading function in existing radial artery compressors to prevent thrombosis or vascular occlusion.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A radial artery compressor for critically ill cardiology patients includes a fixation plate with a strap on its outer side; a compression assembly for applying pressure to the hemostasis point at the radial artery, the compression assembly being connected to the fixation plate; the compression assembly includes a knob rotatably connected inside the fixation plate, a rotating rod threaded inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, sliding rods symmetrically slidably connected to both ends of the connecting plate, and compression heads fixedly connected to both ends of the sliding rods through the connecting plate; a kneading assembly for kneading the hemostasis point after the compression assembly is released, the kneading assembly being connected to the rotating rod and the compression heads; and a locking assembly for switching between rotation and fixation of the kneading assembly, the locking assembly being connected to the rotating rod and the kneading assembly.

[0007] Optionally, the kneading assembly includes a plug rod rotatably connected inside the rotary rod, the top end of the plug rod extending to the outside of the knob and fixedly connected to a rotating cover, a connecting rod slidably connected inside the plug rod, and a cam plate fixedly connected to the bottom end of the connecting rod, and the cam plate abutting against the inner wall of the pressure head when rotating.

[0008] Optionally, a fixing sleeve is fixedly connected inside the pressing head and outside the connecting rod, and a tapered through hole is opened inside the fixing sleeve.

[0009] Optionally, a tapered plug is provided on the outer side of the plug rod, and the outer wall of the tapered plug fits against the side wall of the tapered through hole.

[0010] Optionally, the connecting rod has slots equidistantly spaced inside, and the insert rod has posts equidistantly fixedly connected inside, with the posts inserted into the slots.

[0011] Optionally, the locking assembly includes clips symmetrically fixed to the outside of the insert rod, and the inside of the rotating rod is symmetrically provided with positioning grooves for accommodating the clips. An annular groove is provided inside the rotating rod above the positioning groove, and an annular protrusion is provided inside the rotating rod below the annular groove.

[0012] Optionally, the knob extends through the outside of the fixed plate and is fixedly connected to multiple paddles at equal intervals below the rotating cover.

[0013] Optionally, elastic elements are symmetrically fixedly connected to the outer side of the connecting plate, and the end of the elastic element away from the connecting plate is fixedly connected to the inner wall of the pressing head.

[0014] Optionally, a silicone pad is fixedly connected to the bottom of the fixing plate, and a recess is provided on the side of the fixing plate away from the silicone pad.

[0015] Optionally, a soft insulating sleeve is fitted over the outside of the compression head.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above-mentioned solution, the radial artery compressor for critically ill cardiology patients provided in this application achieves intermittent compression and release of the hemostasis point by adding a kneading component to the compression component. This design does not require adjustment of the position of the kneading component, and kneading can be performed directly after the compressor releases the hemostasis point. This not only simplifies the operation process and avoids the need for secondary wearing of the compressor, but also ensures continuous and uninterrupted compression of the hemostasis point. In addition, using the kneading component to knead the hemostasis point can effectively prevent potential risks such as thrombosis or vascular occlusion.

[0018] The locking components on the rotating rod and the insertion rod allow for flexible switching between the rotation and fixed states of the massage component. This design not only effectively prevents the pressure head from swinging due to accidental touch by the patient, but also makes locking and unlocking operations simple, requiring only insertion and removal, which greatly facilitates the operation of medical staff.

[0019] By setting an elastic element between the compression head and the connecting plate, an auxiliary force can be provided for the repositioning of the compression head after kneading. At the same time, with the cooperation of the conical plug and the conical barrel, the compression head can be further pressed and repositioned, ensuring that the compression head can be accurately repositioned directly above the hemostasis point after kneading, thereby ensuring the subsequent compression effect on the radial artery. Attached Figure Description

[0020] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0021] Figure 1 This is a schematic diagram of the overall structure of the radial artery compressor of the present invention;

[0022] Figure 2 This is a schematic diagram showing the connection between the pressing component and the kneading component;

[0023] Figure 3 This is an exploded view of the pressing and kneading components;

[0024] Figure 4 This is a cross-sectional schematic diagram of the pressing component and the kneading component;

[0025] Figure 5 This is a schematic diagram of the kneading component;

[0026] Figure 6 This is a schematic diagram showing the connection between the insertion rod and the connecting rod;

[0027] Figure 7 for Figure 4Enlarged structural diagram at point A;

[0028] Figure 8 for Figure 4 Enlarged structural diagram at point B;

[0029] Figure 9 This is a schematic diagram of the internal structure of the rotor.

[0030] Figure label:

[0031] 1. Fixing plate; 101. Strap; 102. Recessed part; 103. Silicone pad; 2. Knob; 201. Paddle; 202. Rotating rod; 203. Connecting plate; 204. Slide rod; 205. Pressure head; 3. Elastic element; 4. Rotating cover; 401. Insert rod; 402. Conical plug; 403. Connecting rod; 404. Cam plate; 405. Slot; 406. Insert post; 5. Fixing sleeve; 601. Clamping element; 602. Positioning groove; 603. Annular groove; 604. Annular protrusion.

[0032] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0033] The radial artery compressor for critically ill cardiology patients provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0034] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0035] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0036] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0037] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0038] like Figures 1 to 4 As shown, an embodiment of the present invention provides a radial artery compressor for critically ill cardiology patients, including a fixation plate 1. A strap 101 is provided on the outer side of the fixation plate 1, and a silicone pad 103 is fixedly connected to the bottom of the fixation plate 1. A concave portion 102 is provided on the side of the fixation plate 1 away from the silicone pad 103. With the cooperation of the concave portion 102 and the silicone pad 103, the wearing position of the fixation plate 1 can be assisted. The concave portion 102 is arc-shaped, which can improve the fit with the wrist. The fixation plate 1 can be pre-fixed to the wrist by the strap 101, which facilitates subsequent adjustment of tightening or loosening. The fixation plate 1 is also provided with multiple through slots to facilitate heat dissipation and improve wearing comfort.

[0039] This embodiment of the invention also includes a pressing component, which is used to apply pressure to the hemostasis point at the radial artery of the patient to stop bleeding. The pressing component is connected to the fixing plate 1. The pressing component includes a knob 2 rotatably connected inside the fixing plate 1. The knob 2 has an internal thread. The knob 2 extends through the outside of the fixing plate 1 and is located below the rotating cover 4. Multiple paddles 201 are fixedly connected at equal intervals. The paddles 201 facilitate the rotation of the knob 2, improving the smoothness of the rotation. A rotating rod 202 is threadedly connected inside the knob 2. A connecting plate 203 is fixedly connected to the bottom end. Slide rods 204 are symmetrically slidably connected to both ends of the connecting plate 203. Both ends of the slide rods 204 pass through the connecting plate 203 and are fixedly connected to the compression head 205. By rotating the knob 2, the rotating rod 202 can be driven to move up and down, thereby enabling the rotating rod 202 to move the connecting plate 203, slide rods 204 and compression head 205 to achieve the compression or release operation of the radial artery hemostasis point, thereby reducing the risk of radial artery occlusion and thrombosis while satisfying the pressure hemostasis.

[0040] The compression head 205 is covered with a soft isolation sleeve. The soft isolation sleeve not only protects the compression head 205 from direct contact with blood and facilitates subsequent cleaning, but also conforms better to the skin and improves the patient's wearing comfort. Elastic elements 3 are symmetrically fixed to the outside of the connecting plate 203, and the end of the elastic element 3 away from the connecting plate 203 is fixedly connected to the inner wall of the compression head 205. The elastic element 3 can provide an auxiliary force for repositioning after the compression head 205 is massaged, making it convenient to reposition the compression head 205 directly above the hemostasis point.

[0041] The kneading component is used to knead the hemostatic point after the pressing component is released. The kneading component is connected to the rotating rod 202 and the pressure head 205. The locking component is used to switch between rotating and fixing the kneading component. The locking component is connected to the rotating rod 202 and the kneading component.

[0042] like Figures 2 to 8As shown, the kneading assembly includes an insert rod 401 rotatably connected inside the rotary rod 202. The top end of the insert rod 401 extends to the outside of the knob 2 and is fixedly connected to a rotating cover 4. A connecting rod 403 is slidably connected inside the insert rod 401. Slots 405 are equidistantly provided inside the connecting rod 403. Insert pins 406 are fixedly connected equidistantly inside the insert rod 401 and are inserted into the slots 405. A cam plate 404 is fixedly connected to the bottom end of the connecting rod 403. When the cam plate 404 rotates, it abuts against the inner wall of the pressure head 205. The cam plate 404 includes a disc and three protrusions provided on the disc. This design enables... The cam plate 404 can drive the compression head 205 to swing three times with one rotation, which not only makes it convenient for medical staff to operate, but also increases the swing speed of the compression head 205. The rotating cover 4 can drive the insertion rod 401 to rotate. Since there are interlocking slots 405 and insertion posts 406 between the insertion rod 401 and the connecting rod 403, it will not affect the sliding of the insertion rod 401 on the connecting rod 403. When the insertion rod 401 rotates, it can also drive the connecting rod 403 and the cam plate 404 to rotate, thereby causing the cam plate 404 to drive the compression head 205 to swing, so as to achieve the massage relief of the radial artery hemostasis point.

[0043] like Figure 2 and Figure 4 As shown, a fixed sleeve 5 is fixedly connected inside the compression head 205 and outside the connecting rod 403. A tapered through hole is opened inside the fixed sleeve 5. A tapered plug 402 is provided on the outside of the insertion rod 401, and the outer wall of the tapered plug 402 fits against the side wall of the tapered through hole. Since the tapered plug 402 is adapted to the inclined surface of the tapered through hole, when the tapered plug 402 moves downward, it can drive the fixed sleeve 5 to move accordingly, thereby enabling the fixed sleeve 5 to drive the compression head 205 to reset, so that the compression head 205 moves again to directly above the hemostasis point, which facilitates subsequent hemostasis compression.

[0044] like Figure 7 and Figure 9As shown, the locking assembly includes two clamping members 601 symmetrically fixed to the outside of the insert rod 401. Each clamping member 601 is an elastic component. Two positioning grooves 602 are symmetrically formed inside the rotating rod 202 to accommodate the clamping members 601. An annular groove 603 is formed inside the rotating rod 202 above the positioning grooves 602, and an annular protrusion 604 is formed inside the rotating rod 202 below the annular groove 603. Moving the insert rod 401 downwards can cause the clamping members 601 to move downwards, thereby engaging the clamping members 601 in the positioning grooves. Inside the groove 602, the insertion rod 401 can be positioned to prevent accidental contact that could cause the cam plate 404 to rotate, thereby ensuring the stability of the pressure head 205 on the hemostasis point. The insertion rod 401 can drive the clamp 601 to move upward into the annular groove 603. Under the action of the annular protrusion 604, the clamp 601 and the insertion rod 401 can be kept in their current positions, making it convenient for medical staff to rotate the cover 4 to drive the insertion rod 401, the connecting rod 403 and the cam plate 404 to rotate continuously, so that the pressure head 205 can fully massage the hemostasis point.

[0045] The workflow of the technical solution of this invention is as follows:

[0046] In use, first, place the fixing plate 1 and the strap 101 on the patient's wrist, and precisely adjust the position of the compression head 205 so that it is aligned with the hemostasis point of the radial artery. Then, tighten the strap 101 to initially fix the compressor to the patient's wrist. With the synergistic action of the concave part 102 and the silicone pad 103, the position of the compressor can be assisted in positioning, effectively preventing it from shifting at the wrist. By turning the lever 201, the knob 2 is driven to rotate, and the knob 2 in turn drives the rotating rod 202 to move downward. When the rotating rod 202 moves, it drives the connecting plate 203, the sliding rod 204 and the compression head 205 to move downward together, so that the compression head 205 applies pressure to the hemostasis point. Since the compression of the radial artery needs to be intermittent, when it is necessary to release the pressure on the radial artery, simply reverse the knob 2. The knob 2 will drive the rotating rod 202, the connecting plate 203 and the compression head 205 to move upward, thereby releasing the pressure on the hemostasis point.

[0047] Subsequently, the rotating cover 4 is pulled upwards, causing the insert rod 401 and the clamp 601 to move upwards together. During this process, the insert rod 401 slides outside the connecting rod 403. At the same time, the insert rod 401 causes the insert post 406 to slide upwards inside the slot 405, while the clamp 601 moves out from inside the positioning groove 602. When the clamp 601 moves into the annular groove 603, it is restricted within the annular groove 603 due to the resistance of the annular groove 603. At this time, the rotating cover 4 causes the insert rod 401 to rotate, and the insert rod 401, in conjunction with the connecting rod 403, causes the cam plate 404 to rotate. When the cam plate 404 rotates, it contacts the inner wall of the compression head 205 and causes the compression head 205 to slide. At this time, the compression head 205 causes the slide rod 204 to slide back and forth inside the connecting plate 203, thereby realizing the kneading action of the compression head 205 on the hemostasis point, which helps to prevent the risk of thrombosis or vascular occlusion.

[0048] When it is necessary to apply pressure to the hemostasis point again, press down on the rotating cover 4. The rotating cover 4 will move the insert rod 401 and the clamping piece 601 downwards, moving the clamping piece 601 out of the annular groove 603 and back to the horizontal position of the positioning groove 602. Rotating the insert rod 401 will move the clamping piece 601 into the positioning groove 602, thus locking the kneading component. The elastic members 3 on both sides of the connecting plate 203 can push the pressure head 205 to move in the center, assisting the pressure head 205 to reset towards the hemostasis point. At the same time, the insert rod 401 will move downwards. During the movement, the conical plug 402 is moved downwards. When the conical plug 402 is in contact with the side wall of the conical through hole inside the fixed sleeve 5, the conical plug 402 moves the fixed sleeve 5, which in turn forces the fixed sleeve 5 to move the compression head 205 again. When the conical plug 402 is completely in contact with the conical through hole inside the fixed sleeve 5, the compression head 205 can be accurately reset. Then, the knob 2 is turned again, causing the rotating rod 202 to move the connecting plate 203 and the compression head 205 downwards, thereby pressing the compression head 205 tightly onto the hemostasis point.

[0049] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0050] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A radial artery compressor for a critical patient in a cardiology department, comprising a fixing plate, the outer side of the fixing plate being provided with a bandage, characterized in that, Also include pressing assembly for pressing hemostasis point at the radial artery of the patient, the pressing assembly is connected with the fixed plate; The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate.

2. The radial artery compressor for critical patients in a cardiology department according to claim 1, wherein The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate.

3. The radial artery compressor for critical patients in a cardiology department according to claim 2, characterized by, The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate.

4. The radial artery compressor for critical patients in a cardiology department according to claim 1, wherein The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate.

5. The radial artery compressor for critical patients in a cardiology department according to claim 1, wherein The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate.

6. The radial artery compressor for critical patients in a cardiology department according to claim 1, wherein The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate.

7. The radial artery compressor for critical patients in a cardiology department according to claim 1, wherein The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate.

8. The radial artery compressor for critical patients in a cardiology department according to claim 1, wherein The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide rods slidably connected inside the connecting plate at both ends, and a compression head fixedly connected to both ends of the slide rod penetrating through the connecting plate. The pressing assembly comprises a knob rotatably connected inside the fixed plate, a rotating rod threadedly connected inside the knob, a connecting plate fixedly connected to the bottom end of the rotating rod, two symmetrical slide

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