Visual mechanical compression class with stage decompression function vascular closure device

Abstract

This invention discloses a visual mechanical compression vascular closure device with a phased decompression function, belonging to the field of medical device technology. The device includes a protective cover with a mounting plate at its upper end. Inside the mounting plate is a mounting block, and inside the mounting block is an adjusting post that threadedly engages with the mounting block. This invention solves the problem that existing vascular closure devices cannot gradually reduce the pressure intensity during compression, resulting in reduced vascular repositioning and closure effectiveness. This invention uses three inner silicone capsules inflated, with the outer silicone capsules compressing the lower movable rod and hemostatic plate. A timed solenoid valve sequentially releases gas from the inner silicone capsules, gradually reducing the compression intensity of the movable rod and hemostatic plate, thus improving vascular closure effectiveness.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a visual mechanical compression type vascular closure device with staged decompression function. Background Technology

[0002] Mechanical compression vascular closure device is a medical device specifically designed for hemostasis at the puncture site after interventional surgery. It quickly and effectively closes the vascular puncture site through mechanical compression, reducing the risk of bleeding and significantly shortening the hemostasis time and the time for the patient to lie down and immobilize the limb. This device is easy to operate, can reduce the incidence of complications such as bleeding and hematoma, and improve patient comfort. The application of mechanical compression vascular closure device marks a major advancement in hemostasis technology after vascular interventional surgery.

[0003] Chinese patent CN222899217U discloses a detachable vascular closure device, including a mounting plate and a mounting assembly. The mounting plate has a quick-installation groove in the middle for quick installation. The easily detachable mounting assembly is located inside the quick-installation groove. The mounting assembly includes a side mounting groove, a quick-installation block, an internally threaded barrel, a hemostatic plate, and a mounting cap. The quick-installation groove is used for quick installation of the mounting assembly to compress and stop bleeding in blood vessels. The quick-installation block slides into the side mounting groove for easy installation. The internally threaded barrel is used for installing the hemostatic plate. The hemostatic plate can be adjusted in position within the internally threaded barrel by its own rotation, thus adjusting the pressure for hemostasis. The operation is simple.

[0004] During the pressing process of the aforementioned patented vascular closure device, the hemostatic plate is fixed by the rotation of the upper threaded engagement position. Adjustment of the hemostatic plate can only be done manually. The pressing intensity cannot be gradually reduced during the pressing process, which would reduce the restoration of the vascular position and the closure effect. Summary of the Invention

[0005] The purpose of this invention is to provide a visual mechanical compression vascular closure device with a phased decompression function. It uses three inner silicone capsules that are inflated, and the outer silicone capsules compress the lower movable rod and hemostatic plate, thereby compressing the blood vessel at the lower end of the hemostatic plate. During the compression process, a programmable logic controller sequentially opens solenoid valves at timed intervals. These timed valves release gas from the inner silicone capsules, gradually reducing the compression intensity of the movable rod and hemostatic plate, thus improving the vascular closure effect and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a visual mechanical compression type vascular closure device with staged decompression function, comprising a protective cover, an upper end of the protective cover having a mounting plate, an inner mounting block having a mounting block having an adjusting column having a threaded engagement with the mounting block having an adjusting rod having a slidingly mounted inner end of the adjusting column having an outer silicone capsule having an outer silicone capsule having three inner silicone capsules having an inner silicone capsule having three inner silicone capsules having a one-way valve sealed on one side of the front end of each of the three inner silicone capsules having a one-way valve having its front end sealedly connected through a first transmission pipe having a solenoid valve on the other side of the front end of each of the three inner silicone capsules.

[0007] Preferably, the solenoid valve and the inner silicone capsule are sealed together via a second transmission pipe. Both sides of the front end of the outer silicone capsule are provided with connecting grooves. The one-way valve is connected to the inner silicone capsule in one of the connecting grooves, and the second transmission pipe is located in the other connecting groove. The three solenoid valves are externally connected via a programmable logic controller.

[0008] Preferably, the upper end of the outer silicone capsule is provided with a connecting block connected by adhesive, and the upper end of the connecting block is fixedly connected to the upper end of the adjusting column by bolts.

[0009] Preferably, a hemostatic plate is provided at the lower end of the movable rod, and three fixing rings are arranged around the upper end of the outer side of the hemostatic plate, with the fixing rings covering three-quarters of the upper outer area of ​​the hemostatic plate. A light guide plate is inclinedly arranged inside the fixing rings, and a battery is provided on one side of the upper outer side of the fixing rings.

[0010] Preferably, an observation groove is provided at the front end of the outer side of the fixing ring, and the observation groove covers one-quarter of the upper part of the hemostatic plate.

[0011] Preferably, the upper end of the hemostatic plate has four second mounting holes evenly distributed around it, and the lower end of the fixing ring has three mounting posts evenly distributed around it, with the outer side of the mounting posts connected to the inner groove of the second mounting holes.

[0012] Preferably, the upper end of the protective cover is provided with brackets on both sides facing the mounting plate, a positioning rope is provided between the brackets and the protective cover, the rear end of the brackets and the protective cover is welded and fixed, and a groove is provided at the front end between the brackets and the protective cover.

[0013] Preferably, a limiting piece is provided at the groove position between the bracket and the protective cover, and the limiting piece is rotatably connected to the protective cover. A first magnet is provided at the front end of the bracket and is magnetically connected to the limiting piece. The first magnet is connected to the bracket by glue.

[0014] Preferably, the positioning rope has first paddles connected by glue on the side facing the protective cover, and second paddles are provided on both sides of the inner wall of the protective cover facing the positioning rope, with the upper end of the second paddle connected to the lower end of the first paddle in a slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In this invention, when the hemostatic plate is pressed at the closure position of the blood vessel, the upper end of the adjusting column continuously supports the hemostatic plate through three inflated inner silicone capsules. The solenoid valves corresponding to the three inner silicone capsules can be activated one by one to release the gas inside the inner silicone capsules one by one, thereby gradually reducing the pressure intensity of the hemostatic plate. During the process of pressing the blood vessel, gradually reducing the pressure intensity can promote the stable formation of thrombus. In the initial stage, sufficient pressure is required to completely prevent blood from seeping out of the puncture point. As time goes by, gradually and slowly reducing the pressure allows a very small amount of blood flow to come into contact with the forming thrombus. The shear force in the blood flow helps to strengthen the thrombus, making it more stable and robust, and avoiding the possibility that a completely sudden release of pressure may cause high shear force impact to destroy the thrombus.

[0017] This invention relates to a hemostatic plate made of transparent polycarbonate material, which allows for direct observation of the current status of the pressure point. Four second mounting holes are recessed around the upper end of the hemostatic plate for installing a fixing ring. After the fixing ring is installed, illumination is generated by a battery powered through a light guide plate inside the fixing ring. The light passes through the transparent hemostatic plate, providing a high-brightness display of the pressure point, allowing users and medical personnel to directly observe the condition of the pressure point and directly monitor bleeding and other unexpected situations, enabling early intervention. The detachable fixing ring can be removed when not in use, preventing excessive weight from prolonged installation and improving safety and comfort during vascular closure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the vascular closure device of the present invention;

[0019] Figure 2 For the present invention Figure 1 Enlarged view of a portion of region A in the middle;

[0020] Figure 3 This is a schematic diagram of the installation trajectory of the fixing ring of the present invention;

[0021] Figure 4 This is a schematic diagram showing the positional relationship of the light guide plate in this invention;

[0022] Figure 5 This is a cross-sectional view of the internal structure of the outer silicon capsule of the present invention;

[0023] Figure 6This is an exploded view of the internal structure of the outer silicon capsule of the present invention;

[0024] Figure 7 This is a schematic diagram of the installation trajectory of the mounting plate and mounting block of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged view of a portion of region B in the middle;

[0026] Figure 9 This is a cross-sectional view of the internal structure of the movable track of the present invention;

[0027] Figure 10 This is a cross-sectional view of the installation position of the positioning rope according to the present invention;

[0028] Figure 11 For the present invention Figure 10 Enlarged view of a portion of region C in the middle;

[0029] Figure 12 For the present invention Figure 10 Enlarged view of a portion of region D;

[0030] Figure 13 This is a schematic diagram of the positioning rope installation trajectory of the present invention.

[0031] In the diagram: 1. Protective cover; 2. First mounting hole; 3. Base; 4. Bracket; 5. Positioning rope; 6. First lever; 7. Restricting plate; 8. First magnet; 9. Mounting plate; 10. Mounting block; 11. Adjusting column; 12. Movable rod; 13. One-way valve; 14. Programmable logic controller; 15. Foot-operated air pump; 16. Fixing ring; 17. Battery; 18. Observation slot; 19. Hemostatic plate; 20. Outer silicone capsule; 21. First transmission pipe; 22. Second transmission pipe; 23. Solenoid valve; 24. Mounting column; 25. Second mounting hole; 26. Pressing rod; 27. Light guide plate; 28. Inner silicone capsule; 29. ​​Connecting block; 30. Mounting frame; 31. Second magnet; 32. First hook; 33. Movable rail; 34. Second hook; 35. Spring; 36. Second lever; 37. Connecting groove; 38. Connecting rod. Detailed Implementation

[0032] The present invention will be further described below with reference to specific embodiments.

[0033] like Figure 1 As shown, this embodiment of a visual mechanical compression type vascular closure device with staged decompression function includes a protective cover 1. The upper end of the protective cover 1 is provided with a mounting plate 9. Both the mounting plate 9 and the protective cover 1 are semi-circular. The mounting plate 9 and the protective cover 1 can be spliced ​​together to form a circle. It can be ringed around the patient's body at the position to be pressed, and can accurately press the vascular closure position.

[0034] Furthermore, a mounting block 10 is slidably disposed inside the mounting plate 9, and an adjusting post 11 is disposed through the mounting block 10. The outer side of the adjusting post 11 is threadedly engaged with the outer side of the mounting block 10. By rotating the adjusting post 11, the horizontal position of the adjusting post 11 can be adjusted longitudinally to adapt to the pressing position and achieve stable pressing.

[0035] In this embodiment, in order to gradually reduce the pressure intensity during the pressing process, a movable rod 12 is provided through the interior of the adjusting column 11, and the exterior of the movable rod 12 is slidably connected to the interior of the adjusting column 11. An outer silicone capsule 20 is provided at the upper end of the interior of the adjusting column 11. When the outer silicone capsule 20 is inflated, it can squeeze the movable rod 12. A hemostatic plate 19 is provided at the lower end of the movable rod 12. When the movable rod 12 is squeezed, it can squeeze the hemostatic plate 19 at the lower end. The deflation of the outer silicone capsule 20 can reduce the pressure intensity of the movable rod 12 and the hemostatic plate 19, and gradually reduce the pressure intensity of the hemostatic plate 19.

[0036] Furthermore, such as Figure 5 and Figure 6 As shown, three inner silicone capsules 28 are arranged longitudinally inside the outer silicone capsule 20. The inflation intensity of the outer silicone capsule 20 can be reduced by deflating the three inner silicone capsules 28 one by one. Both sides of the front end of the outer silicone capsule 20 are provided with connecting grooves 37. The front ends of the three inner silicone capsules 28 are sealed with one-way valves 13 facing one of the connecting grooves 37. The front ends of the three one-way valves 13 are sealed with a first transmission pipe 21. After the gas is transmitted to the first transmission pipe 21, the gas can be evenly transmitted to the inside of the inner silicone capsules 28 after being diverted by the one-way valves 13. The one-way valves 13 can prevent gas leakage after inflation.

[0037] The one-way valve 13 is a product with the serial number j53J4QLh from the Yumengzhe brand. The small one-way valve 13 facilitates installation and the filling of gas into the internal silicon capsule 28.

[0038] In addition, each of the three internal silicone capsules 28 has a second transmission channel 22 positioned at the front end of one of the connecting slots 37, such as... Figure 2 As shown, each of the front ends of the second transmission pipe 22 is equipped with a solenoid valve 23, and the solenoid valve 23, the second transmission pipe 22 and the inner silicone capsule 28 are sequentially and sealed together. The three solenoid valves 23 are externally connected through a programmable logic controller 14. The programmable logic controller 14 can sequentially start the solenoid valves 23 according to a set timer to release gas at timed intervals. The gas filling of the three inner silicone capsules 28 can cause the outer silicone capsule 20 to expand, and the outer silicone capsule 20 can squeeze the lower movable rod 12. As the three inner silicone capsules 28 gradually release gas, the intensity of the outer silicone capsule 20 squeezing the lower movable rod 12 can be gradually reduced, thus realizing the staged pressure reduction function.

[0039] Gradually reducing the pressure intensity can reduce damage to the blood vessel wall and surrounding tissues, avoid the deformation of the blood vessel wall and damage to endothelial cells caused by continuous high-intensity pressure, and also avoid ischemia of the tissues around the pressure point caused by continuous pressure. Gradually reducing pressure can shorten the total duration of high-intensity compression, reduce mechanical damage to the blood vessel wall and ischemic damage to the surrounding tissues, and promote long-term healing of the puncture site.

[0040] It is worth mentioning that a foot-operated air pump 15 with a sealed connection is provided at one end of the first transmission pipe 21. The exhaust port of the foot-operated air pump 15 is sealed to the first transmission pipe 21. When the user installs the vascular closure device, the medical staff seals the exhaust position of the foot-operated air pump 15 with the first transmission pipe 21. The medical staff can step on the foot-operated air pump 15 to inflate the inner silicone capsule 28, squeeze the movable rod 12 and the hemostatic plate 19, and press the vascular closure position.

[0041] In addition, the outer walls of the solenoid valve 23 and the first transmission pipe 21 are fixedly connected to the adjusting column 11 by bolts. The reserved connecting groove 37 facilitates the gas transmission of the inner silicone capsule 28 and also facilitates the connection of the solenoid valve 23 and the first transmission pipe 21. The upper end of the outer silicone capsule 20 is provided with a connecting block 29, and the connecting block 29 is connected to the outer silicone capsule 20 by glue. The upper end of the connecting block 29 is fixedly connected to the upper end of the adjusting column 11 by bolts. Through the penetration of the bolts and the connection of the connecting block 29, the outer silicone capsule 20 can be continuously fixed to the upper end inside the adjusting column 11, and can be stably inflated to compress the hemostatic plate 19.

[0042] To directly observe the pressure points in low-light conditions, such as Figure 3 As shown, a fixing ring 16 is provided around the upper outer end of the hemostatic plate 19, and the fixing ring 16 covers three-quarters of the upper outer area of ​​the hemostatic plate 19, as shown. Figure 4 As shown, a light guide plate 27 is inclinedly arranged inside the fixing ring 16. When the fixing ring 16 is attached to the upper end of the hemostatic plate 19, the illumination effect of the subsequent light guide plate 27 can be improved.

[0043] Furthermore, a battery 17 is provided on one side of the upper outer end of the fixing ring 16, and the battery 17 is electrically connected to the light guide plate 27. The battery 17 can supply power to the light guide plate 27, which can generate light. The light emitted by the light guide plate 27 can pass through the hemostatic plate 19 to illuminate the pressing position, allowing for observation of bleeding and unexpected situations at the pressing position, and enabling early intervention and treatment of the pressing position.

[0044] It is worth mentioning that there are three light guide plates 27 evenly distributed around the fixing ring 16. The three light guide plates 27 can illuminate the hemostatic plate 19. An observation groove 18 is provided at the front end of the outer side of the fixing ring 16. The observation groove 18 covers a quarter of the upper part of the hemostatic plate 19. The reserved observation groove 18 can facilitate direct observation of the pressing position of the hemostatic plate 19. The reserved observation groove 18 position can be used to observe the pressing position.

[0045] The upper end of the hemostatic plate 19 has four second mounting holes 25 evenly distributed around it, and the lower end of the fixing ring 16 has three mounting posts 24 evenly distributed around it. The outside of the mounting posts 24 is connected to the internal slot of the second mounting hole 25. The upper end of the mounting posts 24 is welded to the fixing ring 16. When installing the fixing ring 16, the installation of the fixing ring 16 can be facilitated by the reserved observation slot 18. After the fixing ring 16 is placed on the upper end of the hemostatic plate 19, the mounting posts 24 can be inserted into the second mounting hole 25, so that the fixing ring 16 can be installed and removed for cleaning.

[0046] Referring to the Chinese patent with authorization announcement number CN202534302U, "An LED Light Guide Plate Advertising Display Stand", that application details the power supply of the LED light guide plate through a battery pack. However, this application does not make any additional improvements to the power supply method, and therefore will not elaborate further in this application.

[0047] To facilitate the installation and removal of the mounting block 10, and for easy replacement and use, a mounting frame 30 is provided at the middle position of the upper end of the mounting plate 9. The exterior of the mounting frame 30 is connected to the exterior sliding groove of the mounting block 10, allowing for direct installation and removal of the mounting block 10. Figure 8 As shown, a second magnet 31 is provided on both sides inside the mounting frame 30, and the second magnet 31 is fixedly connected to the mounting frame 30 by bolts. The mounting block 10 is made of metal. After the mounting block 10 is slidably installed inside the mounting frame 30, the mounting block 10, the lower movable rod 12, and the hemostatic plate 19 can be temporarily fixed by magnetic connection.

[0048] In order to accommodate the patient's pressing position, the upper end of the protective cover 1 is provided with brackets 4 on both sides facing the mounting plate 9. A positioning rope 5 is provided between the brackets 4 and the protective cover 1. The rear end of the brackets 4 and the protective cover 1 are welded and fixed. A groove is provided at the front end between the brackets 4 and the protective cover 1 to facilitate the installation and removal of the positioning rope 5. The positioning rope 5 can be installed and removed through the reserved groove.

[0049] Furthermore, such as Figure 10 , Figure 11 and Figure 12As shown, a first lever 6 is arranged horizontally on the side of the positioning rope 5 facing the protective cover 1, and the first lever 6 is fixed to the outer wall of the positioning rope 5 with glue. The two sides of the inner wall of the protective cover 1 are provided with second levers 36 facing the positioning rope 5, and the upper end of the second lever 36 is connected to the lower end of the first lever 6 in a slot. When the two ends of the positioning rope 5 are pulled, the first lever 6 can directly move the second lever 36, so that the positioning rope 5 can be pulled out. Conversely, the positioning rope 5 will not be retracted into the protective cover 1.

[0050] In order to prevent the positioning rope 5 from falling off, such as Figure 13 As shown, a limiting piece 7 is provided in the groove between the bracket 4 and the protective cover 1, and the limiting piece 7 is rotatably connected to the protective cover 1. The rotation of the limiting piece 7 can limit the position of the groove and prevent the positioning rope 5 from falling off after installation. A first magnet 8 is provided at the front end of the bracket 4, and the first magnet 8 is connected to the bracket 4 by glue. The first magnet 8 is magnetically connected to the limiting piece 7. After the limiting piece 7 rotates, it can be attracted to the upper end of the first magnet 8, which can prevent the positioning rope 5 from falling off.

[0051] To facilitate the installation between the mounting plate 9 and the protective cover 1, both brackets 4 are recessed with movable rails 33 facing the mounting plate 9. A second hook 34 is horizontally arranged inside the movable rail 33. Figure 7 and Figure 9 As shown, the upper end of the second hook 34 is provided with a first hook 32, and the first hook 32 is connected to the second hook 34 in a slot. The first hook 32 is welded and fixed to the lower end of the mounting plate 9. When the mounting plate 9 presses down, the first hook 32 will squeeze the second hook 34, and the second hook 34 will move along the movable rail 33 after being squeezed.

[0052] Furthermore, a spring 35 is provided at the front end of the second hook 34 and the movable rail 33, and the two ends of the spring 35 are welded and fixed to the second hook 34 and the bracket 4 respectively. A pressing rod 26 is provided at the rear end of the second hook 34 and the movable rail 33, and the pressing rod 26 passes through the bracket 4 and extends to the outside. After the first hook 32 contacts the second hook 34, it can slide laterally along the movable rail 33. The lateral sliding of the second hook 34 can squeeze the spring 35. After the first hook 32 is fully pressed and embedded in the movable rail 33, the elasticity of the spring 35 will actively reset the second hook 34, which can actively connect the second hook 34 and the first hook 32 in the slot. The externally extended pressing rod 26 can also actively make the second hook 34 slide along the movable rail 33. Pressing the pressing rod 26 can complete the separation between the mounting plate 9 and the bracket 4.

[0053] In Example 2, the lower end of the protective cover 1 is evenly surrounded by first mounting holes 2. Bases 3 are provided on both sides of the protective cover 1. The upper end of the base 3 is adapted to the shape of the lower end of the protective cover 1, facilitating different placement requirements and adapting to the placement and use needs of different vascular closure devices. A connecting rod 38 is provided through the interior of the base 3, and the exterior of the connecting rod 38 is embedded in the base 3 and rotatably connected to the interior of the base 3. The exterior of the connecting rod 38 is threaded into the interior of the first mounting hole 2. After the vascular closure device is installed in the desired position for the patient, the base 3 can be further fixed by the connecting rod 38 through the base 3, depending on the pressing position. The two connecting rods 38 can improve the stability of the vascular closure device installation, preventing frequent shaking of the vascular closure device and avoiding affecting the pressing of the vascular position.

[0054] Working principle: When using the device and pressing on the patient's blood vessel to close the blood vessel, the two ends of the positioning rope 5 are passed through the bracket 4 connected to the outer wall of the protective cover 1. The positioning rope 5 and the protective cover 1 are looped under the patient's body. The first hook 32 at the lower end of the mounting plate 9 is pressed inward toward the second hook 34. The inclined surface of the first hook 32 toward the spring 35 will cause the second hook 34 to move within the movable rail 33 until the first hook 32 hooks the second hook 34. Then, the spring 35 will cause the second hook 34 to rebound, so that the second hook 34 and the first hook 32 restrict each other, and the mounting plate 9 is looped above the patient's body. The mounting block 10, along with the movable rod 12 and the hemostatic plate 19, are slidably installed into the mounting frame 30. The second magnet 31 is used to attract the mounting block 10 for temporary fixation. One end of the first transmission pipe 21 is connected to the foot-operated air pump 15. Medical staff step on the foot-operated air pump 15. Gas is delivered into the first transmission pipe 21. After being diverted by three one-way valves 13, the gas is evenly delivered into the inner silicone capsule 28. The gas causes the inner silicone capsule 28 to expand. The three expanded inner silicone capsules 28 support the outer silicone capsule 20. The outer silicone capsule 20 supports the movable rod 12 at its lower end. According to the patient's blood vessel position, the rotating adjustment column 11 adjusts the movable rod 12 and the hemostatic plate 19 supported by the outer silicone capsule 20 longitudinally. At the same time, the two ends of the positioning rope 5 can be pulled laterally. After being restricted by the first lever 6 and the second lever 36, the positioning rope 5 can be pulled out but cannot be retracted. Finally, the hemostatic plate 19 is pressed tightly against the position to be pressed. The programmable logic controller 14 activates the solenoid valve 23 corresponding to the second transmission pipe 22 in sequence at regular intervals, so that the gas in the inner silicone capsule 28 can be discharged. The timed discharge of gas from the three inner silicone capsules 28 can reduce the pressure on the hemostatic plate 19 at regular intervals, which helps to close the blood vessel.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A visual mechanical compression class vascular closure device with a stage decompression function, comprising a protective cover (1), characterized in that, The protective cover (1) is provided with an installation plate (9) at its upper end. An installation block (10) is provided inside the installation plate (9). An adjustment column (11) is provided inside the installation block (10) and threadedly engaged with it. A movable rod (12) is slidably provided inside the adjustment column (11). An outer silicone capsule (20) is provided at the upper end of the adjustment column (11). Three inner silicone capsules (28) are longitudinally arranged inside the outer silicone capsule (20). One-way valves (13) are sealed on one side of the front end of each of the three inner silicone capsules (28). The front ends of the three one-way valves (13) are sealed and connected through a first transmission pipe (21). Solenoid valves (23) are provided on the other side of the front ends of each of the three inner silicone capsules (28). The solenoid valves (23) are connected to the inner silicone capsules (28). The outer silicone capsule (20) is sealed and connected by a second transmission pipe (22). Both sides of the front end of the outer silicone capsule (20) are provided with connecting grooves (37). The one-way valve (13) is connected to the inner silicone capsule (28) in one of the connecting grooves (37). The second transmission pipe (22) is located in the other connecting groove (37). The three solenoid valves (23) are connected to the outside by a programmable logic controller (14). The lower end of the movable rod (12) is provided with a hemostatic plate (19). The upper end of the hemostatic plate (19) is surrounded by three fixing rings (16), and the fixing rings (16) cover three-quarters of the upper part of the hemostatic plate (19). The inside of the fixing ring (16) is inclined with a light guide plate (27). The upper side of the fixing ring (16) is provided with a battery (17).

2. A visual mechanical compression-type vascular closure device with staged decompression function according to claim 1, characterized in that, The upper end of the outer silicone capsule (20) is provided with a connecting block (29) connected by glue, and the upper end of the connecting block (29) is fixedly connected to the upper end of the adjusting column (11) by bolts.

3. A visual mechanical compression-type vascular closure device with staged decompression function according to claim 2, characterized in that, An observation groove (18) is provided at the front end of the outside of the fixing ring (16), and the observation groove (18) covers a quarter of the upper part of the hemostatic plate (19).

4. A visual mechanical compression-type vascular closure device with staged decompression function according to claim 3, characterized in that, The upper end of the hemostatic plate (19) is evenly distributed with four second mounting holes (25), and the lower end of the fixing ring (16) is evenly distributed with three mounting posts (24), and the outside of the mounting posts (24) is connected to the internal slot of the second mounting holes (25).

5. A visual mechanical compression-type vascular closure device with staged decompression function according to claim 4, characterized in that, The upper end of the protective cover (1) is provided with brackets (4) on both sides facing the mounting plate (9). A positioning rope (5) is provided between the bracket (4) and the protective cover (1). The rear end of the bracket (4) and the protective cover (1) are welded and fixed. A groove is provided at the front end between the bracket (4) and the protective cover (1).

6. A visual mechanical compression-type vascular closure device with staged decompression function according to claim 5, characterized in that, A limiting piece (7) is provided in the groove between the bracket (4) and the protective cover (1), and the limiting piece (7) is rotatably connected to the protective cover (1). A first magnet (8) is provided at the front end of the bracket (4) and is magnetically connected to the limiting piece (7), and the first magnet (8) is connected to the bracket (4) by glue.

7. A visual mechanical compression-type vascular closure device with staged decompression function according to claim 6, characterized in that, The positioning rope (5) is horizontally arranged with a first paddle (6) connected by glue on the side facing the protective cover (1). The inner walls of the protective cover (1) are provided with a second paddle (36) facing the positioning rope (5), and the upper end of the second paddle (36) is connected to the lower end of the first paddle (6) in a slot.

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