Cardioangiographic compression device

Abstract

This invention discloses a cardiovascular angiography compression device, relating to the field of compression device technology. It includes a fixing strap, a support block, a connecting plate, a connecting rod, a compression rod, a vertical rod, and a first spring. The supporting block is connected to the connecting plate symmetrically arranged on the side away from the fixing strap. The connecting plate is slidably connected to the vertical rod, and the compression rod is connected to the side of the vertical rod closer to the compression strap. Through the cooperation between the pulling strap and the fixing strap, this invention can fix the cardiovascular angiography compression device to the patient's forearm. Under the elastic force of the first spring, the connecting rod and the compression rod remain in a downward moving state, allowing the compression strap to bring the cotton pad into close contact with the patient's puncture site for compression and hemostasis. This cardiovascular angiography compression device is fixed to the patient's forearm, allowing the patient to walk freely while using it.

Description

Technical Field

[0001] This invention relates to the field of compression device technology, and more particularly to a compression device for cardiovascular angiography. Background Technology

[0002] Cardiovascular angiography involves injecting a contrast agent into the heart chambers or blood vessels, allowing them to be quickly visualized under X-ray irradiation. This enables doctors to rapidly examine the internal condition of the heart chambers or blood vessels, playing a crucial role in the treatment of cardiovascular diseases. During the injection of the contrast agent, a puncture procedure is required. After the puncture, a compression device is used to apply pressure to the puncture site to prevent bleeding and achieve hemostasis. Many compression devices exist, such as the one disclosed in patent publication number CN215306338U, which describes a cardiovascular angiography compression device. This device includes a base, a support rod, a crossbar, a sleeve, a threaded rod, a bearing, a fixing block, a spring, a telescopic rod, and a compression block. The support rod is mounted on the base, and the crossbar is mounted on its upper end. The sleeve is mounted on the end of the crossbar furthest from the support rod. The upper end of the sleeve has a threaded hole, within which the threaded rod is located. The lower end of the telescopic rod extends out of the sleeve and connects to the compression block.

[0003] When applying pressure to the puncture site using the aforementioned patent, the lower and upper plates are first clamped onto the bed by rotating the threaded sleeve. After the patient lies on the bed, the puncture site is placed under the pressure block. Rotating the threaded rod drives the fixing block, which in turn presses the pressure block onto the patient's puncture site. As can be seen from the above operation, the patient needs to lie on the bed when using the aforementioned cardiovascular angiography pressure device. This is because the pressure on the puncture site needs to be applied for a relatively long time after cardiovascular angiography. However, the aforementioned cardiovascular angiography pressure device is not convenient to carry, so the patient cannot walk freely during this period, which is very inconvenient. Therefore, a cardiovascular angiography pressure device that is easy to carry and allows the patient to walk freely is now being developed. Summary of the Invention

[0004] This invention provides a portable cardiovascular angiography compression device that patients can use while walking freely, solving the problem that existing cardiovascular angiography compression devices are inconvenient to carry and prevent patients from using them while walking freely.

[0005] This invention provides a cardiovascular angiography compression device, comprising a fixing strap, a support block, an elastic plate, a compression band, and Velcro. The support block is connected to the fixing strap, the fixing strap is connected to symmetrically arranged Velcro, the fixing strap is connected to symmetrically arranged elastic plates, and the compression band is connected between the elastic plates. The device also includes a connecting plate, a connecting rod, a compression rod, a vertical rod, and a first spring. The supporting block is connected to the symmetrically arranged connecting plate on the side away from the fixing strap. The connecting plate is slidably connected to the vertical rod. The vertical rod is connected to the compression rod on the side closer to the compression band, and the compression rod and the compression band are in contact. The vertical rod is connected to the side away from the compression rod on the side further away from the compression rod, and the first spring is connected between the connecting rod and the connecting plate.

[0006] Furthermore, it also includes a guide block, a sliding frame, a second spring, and a wedge plate. The connecting plate is connected to the guide block, the sliding frame is slidably connected between the guide blocks, the second spring is connected between the sliding frame and the guide block, and the wedge plate is connected to the side of the sliding frame near the connecting rod. The wedge-shaped surface of the wedge plate and the connecting rod are pressed together.

[0007] Furthermore, it also includes an annular stop bar and a third spring. The annular stop bar is slidably connected to the sliding frame on the side away from the wedge plate, and the third spring is connected between the annular stop bar and the sliding frame.

[0008] Furthermore, it also includes a pressing component, a sliding block, a sliding rod, a fourth spring, and a central pressing block. The supporting block is slidably connected to the sliding block, and the sliding block is slidably connected to the sliding rod. The pressing component for driving the sliding rod downward is provided between the annular blocking rod and the supporting block. The fourth spring is connected between the sliding rod and the sliding block, and the central pressing block is connected to the bottom of the sliding rod on the side away from the fourth spring.

[0009] Furthermore, the extrusion assembly includes a slider and an L-shaped rod. The annular blocking rod is slidably connected to the slider, the slider is in contact with the elastic band, and the support block is rotatably connected to the L-shaped rod near the slider. The L-shaped rod and the slider are in an extrusion fit, and the L-shaped rod near the fourth spring is in an extrusion fit with the slider.

[0010] Furthermore, it also includes a guide frame, a deceleration rod, a one-way shaft, a friction wheel, and a fifth spring. The guide frame is connected to the side of the support block away from the wedge plate. The guide frame is slidably connected to the symmetrically arranged deceleration rods. The fifth spring is connected between the deceleration rods and the guide frame. The one-way shaft is provided on the side of the deceleration rods near the wedge plate. The one-way shaft is connected to the friction wheel. The friction wheel and the wedge plate are in a pressing fit.

[0011] Furthermore, it also includes a fixed block, a sliding rod, an elastic element, and a locking tooth. The support block is connected to the fixed blocks arranged symmetrically. The fixed blocks are slidably connected to the sliding rods. The locking teeth are connected between the sliding rods and the side of the sliding blocks near the sliding blocks. The sliding blocks are uniformly provided with protruding teeth on the side near the locking teeth. The protruding teeth and the locking teeth mesh. The elastic element is connected between the locking teeth and the fixed blocks.

[0012] Furthermore, it also includes a pull strap, with the support block connected to a symmetrically arranged pull strap on the left, and the pull strap is also connected to the Velcro.

[0013] Furthermore, it also includes an elastic band, which is connected to the bottom of the annular stop bar.

[0014] Furthermore, the central pressing block is attached to the bottom of the sliding rod by adhesive bonding.

[0015] The beneficial effects are as follows: 1. With the cooperation of the pull belt and the fixing belt, the cardiovascular angiography compression device can be fixed on the patient's forearm. Under the elastic force of the first spring, the connecting rod and the pressing rod are kept in a downward moving state, so that the pressing belt drives the cotton pad to fit tightly with the patient's puncture site for pressing and hemostasis. With the cardiovascular angiography compression device fixed on the patient's forearm, the patient can walk freely and use it.

[0016] 2. When the patient's wrist bends and moves, it touches the sliding frame, which causes the sliding frame to move the wedge plate forward and press down the connecting rod, thereby driving the pressing rod to strengthen the pressure on the pressing band. This allows the pressing band to strengthen the pressure on the patient's puncture site to stop bleeding, avoiding the impact of the pressing band's hemostatic effect on the patient's wrist bending and moving.

[0017] 3. The present invention uses a third spring to drive the annular blocking rod and elastic band to press downward, so that the elastic band fits tightly against the patient's wrist, minimizing the possibility of the patient's wrist moving around and affecting the hemostasis effect.

[0018] 4. When the patient's wrist is bent and moving, the sliding component can be squeezed by the muscles, causing the sliding component to squeeze the L-shaped rod, which in turn drives the central pressing block to automatically press down to strengthen the pressure and stop the bleeding at the puncture site, avoiding the impact of the pressure and hemostasis effect caused by the patient's wrist bending and moving. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the components such as the fixing strap and support block of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the elastic plate and pressing belt components of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the fixing belt, elastic plate, and pressing belt of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the present invention used to apply pressure to the puncture site on a patient.

[0024] Figure 6 This is a three-dimensional structural diagram of the guide block, sliding frame, and second spring components of the present invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the annular blocking rod and the third spring of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the present invention used to apply stronger pressure to the puncture site on a patient.

[0027] Figure 9 This is a three-dimensional structural diagram of the annular blocking rod, sliding member, and elastic band of the present invention.

[0028] Figure 10 This is a three-dimensional structural diagram of the guide frame, deceleration rod, and one-way shaft of the present invention.

[0029] Figure 11 This is a three-dimensional structural diagram of the components such as the fixing block, sliding rod, and elastic element of the present invention.

[0030] Reference numerals: 1_Fixing belt, 11_Support block, 12_Pull belt, 13_Elastic plate, 14_Pressing belt, 15_Hook and loop fastener, 2_Connecting plate, 21_Connecting rod, 22_Pressing rod, 23_Vertical rod, 24_First spring, 3_Guide block, 31_Sliding frame, 32_Second spring, 33_Wedge plate, 4_Annular blocking rod, 41_Third spring, 42_Elastic belt, 5_Sliding element, 51_L-shaped rod, 52_Sliding block, 53_Sliding rod, 54_Fourth spring, 55_Central pressing block, 6_Guide frame, 61_Deceleration rod, 62_One-way shaft, 63_Friction wheel, 64_Fifth spring, 7_Fixing block, 71_Sliding rod, 72_Elastic element, 73_Clamping tooth. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings.

[0032] Example 1: A cardiovascular angiography compression device, such as Figures 1-5 As shown, the device includes a fixing strap 1, a support block 11, an elastic plate 13, a pressure strap 14, Velcro 15, a connecting plate 2, a connecting rod 21, a pressure rod 22, a vertical rod 23, and a first spring 24. The bottom of the support block 11 is connected to the fixing strap 1, and Velcro 15 is connected to both the lower left and right sides of the fixing strap 1. Pull straps 12 are connected to both the left and right sides of the support block 11, and Velcro 15 is also connected to the lower part of the pull straps 12. The support block 11 can be fixed to the patient's forearm by the binding of the fixing strap 1 and the pull straps 12. Elastic plates 13 are connected to both the lower left and right sides of the fixing strap 1, and the pressure strap 14 is connected between the bottom of the elastic plates 13. 4. The compression band 14 is attached to the puncture site on the forearm. The support block 11 is connected to the connecting plates 2 on both sides. The connecting plates 2 are slidably connected to the middle of the vertical rods 23. The bottom of the vertical rods 23 is connected to the compression rods 22. The bottom of the compression rods 22 is attached to the top of the compression band 14. The top of the vertical rods 23 is fixedly connected to the connecting rods 23. The bottom left and right sides of the connecting rods 21 are connected to the top of the connecting plates 24. The first springs 24 are wound around the vertical rods 23. The first springs 24 provide the compression rods 22 with downward pressure. The compression rods 22 will press the compression band 14, so that the compression band 14 presses the puncture site of the patient to stop bleeding.

[0033] When using this cardiovascular angiography compression device, firstly, attach a disposable cotton pad to the bottom of the compression band 14 using adhesive. Then, use the fixing strap 1 to tie the support block 11 to the patient's forearm using Velcro 15. Use Velcro 15 to tie the pull strap 12 to the patient's forearm as well. The pull strap 12 reinforces the support block 11, making it stable. After the cardiovascular angiography compression device is fixed, the connecting rod 21 and the compression rod 22 remain in a downward moving state under the elastic force of the first spring 24, while the compression rod 22 presses down on the compression band 1. 4. When the compression band 14 is pressed down, the cotton pad will adhere tightly to the patient's puncture site, thus applying pressure to stop bleeding at the puncture site. During the compression process, the compression band 14 will pull the elastic plate 13, which can adapt to deformation. The elastic plate 13 can fix both ends of the compression band 14. This cardiovascular angiography compression device is fixed on the patient's forearm, allowing the patient to walk freely and use it. It is also convenient to carry this cardiovascular angiography compression device. After the compression hemostasis is completed, the Velcro 15 on the pull band 12 and the fixing band 1 can be separated, and the cardiovascular angiography compression device can be removed.

[0034] Example 2: Based on Example 1, such as Figure 6As shown, it also includes a guide block 3, a sliding frame 31, a second spring 32, and a wedge plate 33. The top rear side of the connecting plate 2 is connected to the guide block 3. The sliding frame 31 is slidably connected between the guide blocks 3. The second spring 32 is connected between the front left and right sides of the sliding frame 31 and the front of the guide block 3. The second spring 32 is wound around the sliding frame 31. The wedge plate 33 is fixed in the middle of the front of the sliding frame 31. The wedge-shaped surface of the wedge plate 33 and the connecting rod 21 are pressed together. When the patient's wrist is bent, the muscles in the patient's wrist will push the sliding frame 31 forward. The sliding frame 31 will drive the wedge plate 33 to move forward. The wedge plate 33 will automatically press the connecting rod 21 downward.

[0035] After fixing the cardiovascular angiography compression device to the patient's forearm, the sliding frame 31 is positioned close to the patient's wrist. During the patient's movement, the wrist inevitably bends and moves. If the wrist bends and moves, the muscles in the wrist and forearm will also move. This forearm muscle movement makes it difficult for the compression band 14 to press firmly on the puncture site. Therefore, to prevent muscle movement from affecting the compression band 14's hemostatic effect on the puncture site, a wedge plate 33 is provided. If the patient's wrist bends and moves, the wrist will push the sliding frame 31 forward, stretching the second spring 32. The sliding frame 31 moves forward, driving the wedge plate. When wedge plate 33 moves forward, it will cause connecting rod 21 to move downward through the wedge surface. The downward movement of connecting rod 21 will cause pressing rod 22 to move downward. This allows pressing rod 22 to press more firmly on pressing band 14, thereby strengthening the pressure of pressing band 14 on the patient's puncture site to stop bleeding. This avoids affecting the hemostatic effect of pressing band 14 due to the patient's wrist bending and moving. If the patient's wrist relaxes, sliding frame 31 will be released. Under the action of second spring 32, sliding frame 31 and wedge plate 33 will move backward to reset. Connecting rod 21 will be released, and then first spring 24 will drive connecting rod 21 and pressing rod 22 to move upward to reset.

[0036] like Figure 7 As shown, it also includes an annular blocking rod 4, a third spring 41, and an elastic band 42. The annular blocking rod 4 is slidably connected to the middle of the rear part of the sliding frame 31. The bottom of the annular blocking rod 4 is placed at the patient's wrist position. The third spring 41 is connected between the upper part of the annular blocking rod 4 and the top of the sliding frame 31. The third spring 41 is wound around the upper part of the annular blocking rod 4. The bottom of the annular blocking rod 4 is connected to the elastic band 42, which is close to the patient's wrist position.

[0037] To prevent the patient's wrist from moving around and affecting the hemostasis effect, a ring-shaped blocking rod 4, a third spring 41, and an elastic band 42 are installed. After the cardiovascular angiography compression device is fixed to the patient's forearm, the elastic band 42 is pressed tightly against the patient's wrist. Under the action of the third spring 41, the ring-shaped blocking rod 4 and the elastic band 42 are kept in a downward moving state. The ring-shaped blocking rod 4 and the elastic band 42 can restrict the patient's wrist and keep the patient's wrist in a straight position as much as possible.

[0038] like Figures 8-9 As shown, it also includes a squeezing assembly, a sliding block 52, a sliding rod 53, a fourth spring 54, and a central pressing block 55. The support block 11 is slidably connected to the sliding block 52, and the sliding rod 53 is slidably connected to the sliding block 52. A squeezing assembly is provided between the annular blocking rod 4 and the rear of the support block 11. The squeezing assembly can squeeze the sliding rod 53 downward. The fourth spring 54 is connected between the upper part of the sliding rod 53 and the top of the sliding block 52. The bottom of the sliding rod 53 is connected to a central pressing block for concentrated pressure on the patient's puncture site. The pressure block 55 and the center pressing block 55 are glued to the bottom of the sliding rod 53 by adhesive, which makes it easy to replace the center pressing block 55; the extrusion assembly includes a sliding member 5 and an L-shaped rod 51. The sliding member 5 is slidably connected to the middle of the annular blocking rod 4. The bottom of the sliding member 5 is located above the elastic band 42, and the top of the sliding member 5 and the elastic band 42 are in contact. The L-shaped rod 51 is rotatably connected to the rear of the support block 11. The rear of the L-shaped rod 51 is pressed and engaged with the lower part of the sliding member 5, and the front of the L-shaped rod 51 is pressed and engaged with the top of the sliding rod 53.

[0039] If the patient's wrist bends or moves erratically, the muscles in the wrist will compress the elastic band 42, deforming it. When the muscles compress the slider 5 through the elastic band 42, the slider 5 will move upward. When the slider 5 moves upward and contacts the rear of the L-shaped rod 51, it will cause the L-shaped rod 51 to rotate clockwise. The front of the L-shaped rod 51 will then swing downward, compressing the sliding rod 53. The fourth spring 54 will be compressed, and the sliding rod 53 will move downward under pressure, causing the central pressing block 55 to move downward, thus strengthening the pressure on the patient's puncture site. This further prevents the patient's wrist from bending and moving, which could affect the hemostasis effect. After the patient's wrist relaxes, the muscles no longer compress the sliding member 5. Under the action of the fourth spring 54, the sliding rod 53 and the central pressing block 55 move upward and reset. The upward movement of the sliding rod 53 will cause the L-shaped rod 51 to rotate counterclockwise and reset. The rear of the L-shaped rod 51 swings downward and causes the sliding member 5 to move downward and reset. In summary, by compressing the sliding member 5 with the muscles in the wrist, the central pressing block 55 automatically presses down to strengthen the hemostasis at the puncture site.

[0040] like Figure 10As shown, it also includes a guide frame 6, a deceleration rod 61, a one-way shaft 62, a friction wheel 63, and a fifth spring 64. The guide frame 6 is connected to the front top of the support block 11. The deceleration rod 61 is slidably connected to both sides of the guide frame 6. The fifth spring 64 is connected between the inner side of the deceleration rod 61 and the guide frame 6. The one-way shaft 62 is provided at the rear of the deceleration rod 61. The friction wheel 63 for decelerating the wedge plate 33 is connected to the one-way shaft 62. The friction wheel 63 and the wedge plate 33 are in a pressing fit.

[0041] When the patient's wrist is bent and squeezed against the sliding frame 31, the sliding frame 31 moves the wedge plate 33 forward, thereby strengthening the pressure band 14 to apply pressure to the puncture site for hemostasis. During the forward movement of the wedge plate 33, the elastic force of the fifth spring 64 causes the deceleration lever 61 to move the one-way shaft 62 and the friction wheel 63 inward, keeping the friction wheel 63 in close contact with the wedge plate 33. This forward movement of the wedge plate 33 generates friction with the friction wheel 63, causing the friction wheel 63 to rotate. However, the rotation of the friction wheel 63 does not affect the movement of the wedge plate 33. The influence of the sliding frame 31 is that when the patient's wrist stops bending, the sliding frame 31 will move the wedge plate 33 backward. At this time, under the action of the one-way shaft 62, the friction wheel 63 cannot rotate in the opposite direction. The inability of the friction wheel 63 to rotate will increase the friction between it and the wedge plate 33, thereby slowing down the backward movement of the wedge plate 33. This also allows the wedge plate 33 to slowly release the connecting rod 21. Slowly releasing the connecting rod 21 will also allow the pressure band 14 to relax a little. If the pressure band 14 relaxes the puncture site quickly, the patient will inevitably feel discomfort.

[0042] like Figure 11 As shown, it also includes a fixing block 7, a sliding rod 71, an elastic element 72, and a locking tooth 73. The front and rear sides of the upper right part of the support block 11 are connected to the fixing block 7. The sliding rod 71 is slidably connected to the fixing block 7. The left side of the sliding rod 71 is connected to the locking tooth 73. The right side of the sliding block 52 is evenly provided with protruding teeth, which mesh with the locking tooth 73. The front and rear sides of the right side of the locking tooth 73 are connected to the fixing block 7, and the elastic element 72 is connected to the fixing block 7.

[0043] After the cardiovascular angiography compression device is installed, the central compression block 55 can be adjusted back and forth to position it at the puncture site. This allows the central compression block 55 to focus pressure on the puncture site for hemostasis. When adjusting the position of the central compression block 55, first move the locking tooth 73 to the right, causing the sliding rod 71 to move to the right. The elastic element 72 is compressed, and the locking tooth 73 separates from the protruding tooth. Then, the central compression block 55 and the sliding block 52 can be moved back and forth to the puncture position. After adjustment, release the locking tooth 73. Under the action of the elastic element 72, the locking tooth 73 moves to the left to reset and re-engage with the protruding tooth. In this way, the position of the sliding block 52 and the central compression block 55 can be fixed by the cooperation between the protruding tooth and the locking tooth 73.

[0044] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A cardiovascular angiography compression device, comprising a fixing strap (1), a support block (11), an elastic plate (13), a compression strap (14), and Velcro (15), wherein the support block (11) is connected to the bottom of the fixing strap (1), the Velcro (15) is symmetrically connected to the lower left and right sides of the fixing strap (1), the elastic plate (13) is symmetrically arranged on the lower left and right sides of the fixing strap (1), the compression strap (14) is connected between the bottoms of the elastic plates (13), and the compression strap (14) is attached to the puncture site of the forearm, characterized in that: It also includes a connecting plate (2), a connecting rod (21), a pressing rod (22), a vertical rod (23), and a first spring (24). The supporting block (11) is connected to the connecting plate (2) which is symmetrically arranged on the side away from the fixing band (1). The vertical rod (23) is slidably connected to the middle of the connecting plate (2). The pressing rod (22) is connected to the bottom of the vertical rod (23) on the side close to the pressing band (14). The bottom of the pressing rod (22) is in contact with the top of the pressing band (14). The connecting rod (21) is fixed between the top of the vertical rod (23). The first spring (24) is connected between the bottom left and right sides of the connecting rod (21) and the top of the connecting plate (2). The support block (11) is connected to a pull strap (12) on both sides. The lower part of the pull strap (12) is also connected to a Velcro (15). By binding the fixing strap (1) and the pull strap (12), the support block (11) can be fixed to the patient's forearm. The first spring (24) is wrapped around the vertical rod (23). The first spring (24) provides a downward force for the pressing rod (22). The pressing rod (22) will press the pressing strap (14), so that the pressing strap (14) presses the patient's puncture site to stop bleeding. It also includes a guide block (3), a sliding frame (31), a second spring (32) and a wedge plate (33). The connecting plate (2) is connected to the guide block (3). The sliding frame (31) is slidably connected between the guide blocks (3). The second spring (32) is connected between the sliding frame (31) and the guide block (3). The wedge plate (33) is connected to the side of the sliding frame (31) near the connecting rod (21). The wedge-shaped surface of the wedge plate (33) and the connecting rod (21) are pressed together.

2. The cardiovascular angiography compression device as described in claim 1, characterized in that: It also includes an annular stop bar (4) and a third spring (41). The sliding frame (31) is slidably connected to the annular stop bar (4) on the side away from the wedge plate (33). The third spring (41) is connected between the annular stop bar (4) and the sliding frame (31). It also includes an elastic band (42), and the bottom of the annular stop bar (4) is connected to the elastic band (42).

3. The cardiovascular angiography compression device as described in claim 2, characterized in that: It also includes a squeezing assembly, a sliding block (52), a sliding rod (53), a fourth spring (54), and a center pressing block (55). The support block (11) is slidably connected to the sliding block (52), and the sliding block (52) is slidably connected to the sliding rod (53). The squeezing assembly for driving the sliding rod (53) to move downward is provided between the annular blocking rod (4) and the support block (11). The fourth spring (54) is connected between the sliding rod (53) and the sliding block (52). The center pressing block (55) is connected to the bottom of the sliding rod (53) on the side away from the fourth spring (54).

4. The cardiovascular angiography compression device as described in claim 3, characterized in that: The extrusion assembly includes a slider (5) and an L-shaped rod (51). The annular blocking rod (4) is slidably connected to the slider (5). The slider (5) is in contact with the elastic band (42). The support block (11) is rotatably connected to the L-shaped rod (51) on the side near the slider (5). The L-shaped rod (51) and the slider (5) are in an extrusion fit. The L-shaped rod (51) is in an extrusion fit with the slider (53) on the side near the fourth spring (54).

5. A cardiovascular angiography compression device as described in claim 4, characterized in that: It also includes a guide frame (6), a deceleration rod (61), a one-way shaft (62), a friction wheel (63), and a fifth spring (64). The support block (11) is connected to the guide frame (6) on the side away from the wedge plate (33). The guide frame (6) is slidably connected to the symmetrically arranged deceleration rod (61). The fifth spring (64) is connected between the deceleration rod (61) and the guide frame (6). The one-way shaft (62) is provided on the side of the deceleration rod (61) close to the wedge plate (33). The one-way shaft (62) is connected to the friction wheel (63). The friction wheel (63) and the wedge plate (33) are pressed together.

6. The cardiovascular angiography compression device as described in claim 5, characterized in that: It also includes a fixing block (7), a sliding rod (71), an elastic element (72), and a locking tooth (73). The support block (11) is connected to the symmetrically arranged fixing block (7). The fixing block (7) is slidably connected to the sliding rod (71). The sliding rod (71) is connected to the locking tooth (73) on the side near the sliding block (52). The sliding block (52) is evenly provided with protruding teeth on the side near the locking tooth (73). The protruding teeth and the locking tooth (73) mesh. The locking tooth (73) and the fixing block (7) are connected to the elastic element (72).

7. A cardiovascular angiography compression device as described in claim 5, characterized in that: The central pressing block (55) is glued to the bottom of the sliding rod (53) by adhesive bonding.

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