Hemostasis device for angiocardiography

By adopting a double-layer design of floating pressure plate and pressure plate in the hemostasis device for cardiovascular angiography, combined with the pressure fine-tuning mechanism and elastic band, the problem of pressure instability of traditional hemostasis devices is solved, and a more effective hemostasis effect is achieved.

CN120093376APending Publication Date: 2025-06-06THE FIRST PEOPLES HOSPITAL OF CHUNAN COUNTY (CHUNAN BRANCH OF ZHEJIANG PROVINCIAL PEOPLES HOSPITAL)
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Patent Information

Application Number
CN202510495398.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2025-06-06

AI Technical Summary

Technical Problem

Traditional hemostatic devices are difficult to maintain pressure stability during cardiovascular imaging, especially in the limbs or trunk. As breathing or muscle contraction rises and falls, the pressure will change accordingly, resulting in poor hemostatic effect.

Method used

The double-layer design of floating pressure plate and pressure plate is adopted. The pressure of the strap is concentrated on the target position through the outer pressure plate and pressure fine-tuning mechanism. The elastic band is used to maintain the fit between the floating pressure plate and the skin, and avoid the pressure fine-tuning mechanism flipping or leaving the skin.

Benefits of technology

The concentrated effect of pressure in the target area is achieved, reducing the pressure in the non-target area, thereby improving the stability and effect of hemostasis.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of compression hemostasis, and particularly discloses a hemostasis device for angiocardiography, which comprises a pressing locking mechanism, a pressure fine adjustment mechanism and a double-strand bandage mechanism, the pressing locking mechanism comprises a double-layer pressure stabilizing assembly, a guide locking assembly and a rotary unlocking assembly, the guide locking assemblies are annularly and evenly distributed in the double-layer pressure stabilizing assembly, the rotary unlocking assembly is rotationally arranged on the double-layer pressure stabilizing assembly, the pressure fine adjustment mechanism is arranged in the pressing locking mechanism, and the double-strand binding belt mechanisms are arranged on the two sides of the pressing locking mechanism. The floating pressing plate can be kept attached to the skin through the elastic belt, and the pressure fine adjustment mechanism is prevented from turning over or leaving the skin; therefore, the technical problem that in a traditional compression hemostasis scheme, the pressure of the whole circle of binding position and the pressure of the compression target area are increased and decreased together is solved, and the technical effect that the pressure acts on the target area in a concentrated mode, but the pressure borne by other positions is small is achieved.
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Description

Technical Field

[0001] The invention belongs to the technical field of compression hemostasis, and specifically refers to a hemostasis device for cardiovascular angiography. Background Art

[0002] Cardiac angiography is to insert a catheter into your aorta, and then inject contrast agent into the aortic blood through the small hole in the front of the catheter. The X-ray can display the contrast agent flowing along the blood vessels on the display screen to show the shape of the blood vessels and heart.

[0003] Because the catheter is inserted deep and stays in the body for a long time, when the catheter is pulled out, the wound site will bleed and require pressure for a long time to stop the bleeding. If you use finger pressure, on the one hand, the pressure is difficult to control, and on the other hand, long-term pressure will also cause finger muscle soreness; and many wound locations (such as the femoral artery, etc.) are not convenient to press with fingers.

[0004] The length of traditional hemostatic devices is fixed after being tightened. If the wound is on a limb, the contraction of the muscles will cause the diameter of the limb to change. If the wound is on the torso, it will also expand or contract with the rise and fall of breathing. At this time, the length of the strap is fixed, and the pressure at the compression position will change greatly with the rise and fall of the skin. If an elastic strap is used directly, the pressure that should have been applied to the wound will be distributed to the entire skin in contact with the strap, resulting in too little compression. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a hemostatic device for cardiovascular angiography which is easy to cooperate and has stable pressure; in order to solve the above problem, the present scheme adopts a double-layer design of a floating pressure plate and a pressure plate, and the pressure of the strap can be concentrated on the target position through the pressure fine-tuning mechanism through the outer pressure plate, and the floating pressure plate and the skin can be kept in contact through the elastic band to prevent the pressure fine-tuning mechanism from flipping over or leaving the skin; thereby solving the technical problem of the traditional compression hemostasis scheme that the pressure of the entire circle of binding positions and the compression target area increases and decreases together, and achieves the technical effect of concentrating the pressure on the target area, but the pressure on other positions is relatively small.

[0006] If only the floating pressure plate and the pressure plate are used, there will be a problem that the pressure of the floating pressure plate and the pressure plate on the skin will increase or decrease together. In order to increase the pressure of the floating pressure plate on the skin without increasing the pressure at the compression position, the present invention further proposes a pressure fine-tuning mechanism. By rotating the pressure adjustment component, the pressure of the pressure plate can be adjusted individually. At the same time, since the adjustment speed of the adjusting screw is slow and is only suitable for fine-tuning, the present invention also proposes a guide locking component and a rotation unlocking component for quick adjustment. By pressing and locking, the adjusting screw can be first transferred to the basic compression position, and then fine-tuned by rotating the adjusting screw.

[0007] The technical solution adopted by the present invention is as follows: The present invention proposes a hemostatic device for cardiovascular angiography, including a press-locking mechanism, a pressure fine-tuning mechanism and a double-strand binding mechanism, the press-locking mechanism includes a double-layer pressure-stabilizing component, a guide locking component and a rotation unlocking component, the guide locking component is annularly arranged in the double-layer pressure-stabilizing component, the rotation unlocking component is rotatably arranged on the double-layer pressure-stabilizing component, the pressure fine-tuning mechanism is arranged in the press-locking mechanism, and the double-strand binding mechanism is arranged on both sides of the press-locking mechanism.

[0008] Furthermore, the double-layer pressure stabilizing assembly includes a floating pressure plate and a pressure plate, and the floating pressure plate and the pressure plate are arranged in parallel with each other. The guide locking assembly is annularly arranged between the floating pressure plate and the pressure plate, and the relative movement of the floating pressure plate and the pressure plate can be limited and guided by the guide locking assembly.

[0009] The floating pressure plate exerts very little pressure on the skin. The main function of the floating pressure plate is to prevent the pressure position from sliding and shifting by fitting itself against the skin, and to guide the movement of the compression component. Since elastic bands are connected to both ends of the floating pressure plate, the ups and downs of the wound area will not cause excessive compression of the pressing area.

[0010] Preferably, the guide locking assembly comprises a guide inner tube and a guide outer tube, a gear shaft being provided at one end of the guide inner tube, the gear shaft being rotatably arranged on a pressure plate, the guide outer tube being fixedly connected to a floating pressure plate, the guide inner tube being able to rotate and slide in the guide outer tube, a locking window being provided at the bottom of the guide outer tube, an elastic sheet being provided at the end of the guide inner tube, a sloped boss being provided on the elastic sheet and matching the locking window, and an arc-shaped edge being provided on one side of the sloped boss.

[0011] The one-touch locking of the guide inner tube and the guide outer tube can limit the distance between the floating pressure plate and the pressure plate, thereby achieving quick wearing and compression hemostasis of the target position.

[0012] As a further preferred embodiment of the present invention, a convex ring is provided on the pressure plate, and the rotary unlocking assembly includes an unlocking gear ring and an unlocking gear, the unlocking gear ring is rotatably provided on the convex ring, a handle is provided on the unlocking gear ring, the unlocking gear is fixed on the gear shaft, and the unlocking gear and the unlocking gear are meshingly transmitted.

[0013] Furthermore, the pressure fine-tuning mechanism includes a compression component and a pressure regulating component. The floating pressure plate is provided with a sliding hole, and the compression component is slidably disposed in the sliding hole. The pressure plate is provided with a threaded hole, and the pressure regulating component is rotatably disposed in the threaded hole.

[0014] Preferably, the pressure adjustment assembly includes an adjusting screw and a pressure spring. The adjusting screw is threadedly connected to the threaded hole. The axial position of the adjusting screw relative to the pressure plate can be controlled by rotating the adjusting screw. The pressure spring is arranged between the adjusting screw and the compression assembly.

[0015] By rotating the pressure regulating assembly, the pressure strength can be further fine-tuned after the guide inner tube and the guide outer tube are engaged, so that the device can be applied to more complex working conditions.

[0016] As a further preferred embodiment of the present invention, the compression assembly includes a sliding pressure cover, the sliding pressure cover is evenly distributed with air holes in a ring shape, the interior of the sliding pressure cover is provided with hemostatic cotton, the exterior of the sliding pressure cover is provided with a connecting platform, and the pressure spring is provided between the adjusting screw and the connecting platform.

[0017] Furthermore, the double-strand binding mechanism includes an external fastening component and an elastic belt, and the external fastening component is arranged on both sides of the floating pressure plate and the pressure plate.

[0018] Preferably, the external fastening assembly includes a chain, a first strap, a second strap and a connecting buckle, the chain array is arranged on both sides of the pressure plate, the chains are rotatably connected, the first strap is arranged at the end of the chain, the second strap is arranged at the end of the first strap, the second straps on both sides are connected by a connecting buckle, and the position of the connecting buckle on the second strap can be adjusted.

[0019] The pressure plate can be hard-limited by an external fastening assembly so that its basic position remains unchanged, and the floating pressure plate can be soft-limited by an elastic band so that when the surface of the limb fluctuates, the floating pressure plate can stick to the skin without causing excessive pressure.

[0020] As a further preferred embodiment of the present invention, the elastic band is arranged between the second binding belt and the floating pressure plate.

[0021] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The floating pressure plate exerts very little pressure on the skin. The main function of the floating pressure plate is to prevent the pressure position from sliding and shifting by fitting itself against the skin, and to guide the movement of the compression component. Since elastic bands are connected to both ends of the floating pressure plate, the ups and downs of the wound site will not cause excessive compression of the pressing site.

[0022] (2) The one-touch locking of the guide inner tube and the guide outer tube can limit the distance between the floating pressure plate and the pressure plate, thereby achieving quick wearing and compression hemostasis at the target location.

[0023] (3) By rotating the pressure regulating assembly, the pressure strength can be further fine-tuned after the guide inner tube and the guide outer tube are engaged, so that the device can be applied to more complex working conditions.

[0024] (4) The pressure plate can be hard-limited by an external fastening assembly so that the basic position of the pressure plate remains unchanged. The floating pressure plate can be soft-limited by an elastic band so that when the surface of the limb fluctuates, the floating pressure plate can be tightly attached to the skin without causing excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a hemostatic device for cardiovascular angiography proposed by the present invention; Figure 2 This is a front view of a hemostatic device for cardiovascular angiography proposed by the present invention; Figure 3 A top view of a hemostatic device for cardiovascular angiography proposed by the present invention; Figure 4 for Figure 2 A cross-sectional view along the cutting line AA; Figure 5 for Figure 2 A cross-sectional view along the cutting line BB; Figure 6 for Figure 2 A cross-sectional view along the cutting line CC; Figure 7 This is a schematic diagram of the explosion structure of a hemostatic device for cardiovascular angiography proposed by the present invention; Figure 8 for Figure 5 A partial enlarged view of point Ⅰ in the middle; Fig. 9 for Figure 6 A partial enlarged view of the middle II; Fig.10 for Figure 7 A partial enlarged view of the middle part III; Fig.11 for Figure 5 A partial enlarged view of point IV in the middle.

[0026] Among them, 1. press locking mechanism, 2. pressure fine-tuning mechanism, 3. double-strand binding mechanism, 4. double-layer pressure stabilizing component, 5. guide locking component, 6. rotation unlocking component, 7. floating pressure plate, 8. pressure plate, 9. guide inner tube, 10. guide outer tube, 11. gear shaft, 12. unlocking gear ring, 13. unlocking gear, 14. sliding hole, 15. threaded hole, 16. convex ring, 17. elastic sheet, 18. sloped boss, 19. arc edge, 20. locking window, 21. handle, 22. compression component, 23. pressure regulating component, 24. sliding pressure cover, 25. hemostatic cotton, 26. connecting platform, 27. adjusting screw, 28. pressure spring, 29. air vent, 30. external fastening component, 31. elastic band, 32. chain, 33. first binding strap, 34. second binding strap, 35. connecting buckle.

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] like Figure 1 to Figure 11 As shown, the present invention proposes a hemostatic device for cardiovascular angiography, including a press locking mechanism 1, a pressure fine-tuning mechanism 2 and a double-stranded binding mechanism 3, the press locking mechanism 1 includes a double-layer pressure stabilizing component 4, a guide locking component 5 and a rotation unlocking component 6, the guide locking component 5 is evenly arranged in a ring in the double-layer pressure stabilizing component 4, the rotation unlocking component 6 is rotatably arranged on the double-layer pressure stabilizing component 4, the pressure fine-tuning mechanism 2 is arranged in the press locking mechanism 1, and the double-stranded binding mechanism 3 is arranged on both sides of the press locking mechanism 1.

[0031] The double-layer pressure stabilizing assembly 4 includes a floating pressure plate 7 and a pressure plate 8, which are arranged in parallel with each other. The guide locking assembly 5 is evenly arranged in a ring between the floating pressure plate 7 and the pressure plate 8. The guide locking assembly 5 can limit and guide the relative movement of the floating pressure plate 7 and the pressure plate 8.

[0032] The floating pressure plate 7 exerts very little pressure on the skin. The main function of the floating pressure plate 7 is to prevent the pressure position from sliding and deviating by fitting itself against the skin, and to guide the movement of the compression component 22. Since elastic bands 31 are connected to both ends of the floating pressure plate 7, the ups and downs of the wound site will not cause excessive compression of the pressing site.

[0033] The guide locking assembly 5 includes a guide inner tube 9 and a guide outer tube 10. A gear shaft 11 is provided at one end of the guide inner tube 9. The gear shaft 11 is rotatably arranged on the pressure plate 8. The guide outer tube 10 is fixedly connected to the floating pressure plate 7. The guide inner tube 9 can rotate and slide in the guide outer tube 10. A locking window 20 is provided at the bottom of the guide outer tube 10. An elastic sheet 17 is provided at the end of the guide inner tube 9. A sloped boss 18 matching the locking window 20 is provided on the elastic sheet 17. An arc-shaped edge 19 is also provided on one side of the sloped boss 18.

[0034] The one-touch locking of the guide inner tube 9 and the guide outer tube 10 can limit the distance between the floating pressure plate 7 and the pressure plate 8, thereby achieving quick wearing and compression hemostasis of the target position.

[0035] A convex ring 16 is provided on the pressure plate 8, and the rotary unlocking assembly 6 includes an unlocking gear ring 12 and an unlocking gear 13. The unlocking gear ring 12 is rotatably provided on the convex ring 16, and a handle 21 is provided on the unlocking gear ring 12. The unlocking gear 13 is fixed to the gear shaft 11, and the unlocking gear 13 and the unlocking gear ring 12 are meshed for transmission.

[0036] The pressure fine-tuning mechanism 2 includes a compression component 22 and a pressure regulating component 23. The floating pressure plate 7 is provided with a sliding hole 14, and the compression component 22 is slidably arranged in the sliding hole 14. The pressure plate 8 is provided with a threaded hole 15, and the pressure regulating component 23 is rotatably arranged in the threaded hole 15.

[0037] The pressure adjustment assembly 23 includes an adjusting screw 27 and a pressure spring 28. The adjusting screw 27 is threadedly connected to the threaded hole 15. The axial position of the adjusting screw 27 relative to the pressure plate 8 can be controlled by rotating the adjusting screw 27. The pressure spring 28 is arranged between the adjusting screw 27 and the compression assembly 22.

[0038] By rotating and adjusting the pressure regulating assembly 23, the pressure strength can be further fine-tuned after the guide inner tube 9 and the guide outer tube 10 are engaged, so that the device can be applied to more complex use conditions.

[0039] The compression assembly 22 includes a sliding pressure cover 24 , which is evenly distributed with air holes 29 in a ring shape. The interior of the sliding pressure cover 24 is provided with hemostatic cotton 25 . The exterior of the sliding pressure cover 24 is provided with a connecting platform 26 . A pressure spring 28 is provided between the adjusting screw 27 and the connecting platform 26 .

[0040] The double-strand binding mechanism 3 includes an external fastening component 30 and an elastic belt 31 . The external fastening component 30 is arranged on both sides of the floating pressure plate 7 and the pressure plate 8 .

[0041] The external fastening assembly 30 includes a chain 32, a first strap 33, a second strap 34 and a connecting buckle 35. The chain 32 array is arranged on both sides of the pressure plate 8, and the chains 32 are rotatably connected. The first strap 33 is arranged at the end of the chain 32, and the second strap 34 is arranged at the end of the first strap 33. The second straps 34 on both sides are connected by the connecting buckle 35, and the position of the connecting buckle 35 on the second strap 34 can be adjusted.

[0042] The external fastening assembly 30 can be used to hard-limit the pressure plate 8 so that the basic position of the pressure plate 8 remains unchanged, and the elastic band 31 can be used to soft-limit the floating pressure plate 7 so that when the surface of the limb fluctuates, the floating pressure plate 7 can be close to the skin without causing excessive pressure.

[0043] When in use, the user first needs to place the hemostatic cotton 25 in the sliding pressure cover 24, then place the floating pressure plate 7 on the surface of the wound, and then wrap the second strap 34 around the limb or trunk, and complete the connection on the back of the wound through the connecting buckle 35. At this time, the first strap 33 and the second strap 34 are roughly tightened, and the elastic band 31 is slightly loosened; Then, by pressing the handle 21, the guide inner tube 9 slides back toward the guide outer tube 10 until the ramp boss 18 pops out of the locking window 20. During this process, the pressure spring 28 is compressed, thereby pressing the wound to stop bleeding through the compression component 22. The force required for pressing to stop bleeding in this working condition is slightly greater than that required for pressing to stop bleeding after the infusion needle is removed, but the pressing time is longer.

[0044] Then, the loose second strap 34 is tightened again by adjusting the relative positions of the second strap 34 and the connecting buckle 35. At this time, the elastic band 31 has a certain elastic force, which can keep the floating pressure plate 7 always close to the skin surface.

[0045] At this time, the compression component 22 has exerted a relatively suitable pressing force on the wound. If the pressing force needs to be adjusted, rotate the adjusting screw 27. By adjusting the threaded cooperation between the adjusting screw 27 and the threaded hole 15, the relative axial position of the adjusting screw 27 and the pressure plate 8 can be controlled to further change the deformation of the pressure spring 28.

[0046] When the wound position fluctuates due to breathing or muscle contraction, the floating pressure plate 7 will move with the movement of the limb surface, but the position of the pressure plate 8 remains unchanged. At this time, the compression amplitude of the pressure spring 28 will also change, but the influence of the compression amplitude change of the pressure spring 28 on the elastic force can be maintained in a smaller range through the design of the elastic modulus. Therefore, the pressure force of the pressure spring 28 on the target position does not change much during this process. Since the length of the locking window 20 is greater than the length of the sloped boss 18, when the skin surface fluctuates, the sloped boss 18 will also allow the floating pressure plate 7 and the pressure plate 8 to move relative to each other by sliding in the locking window 20, but the sloped boss 18 will not detach from the locking window 20.

[0047] When it is necessary to disassemble the device, simply unfasten the connecting buckle 35 and remove the device; after removal, the unlocking ring gear 12 is rotated by the handle 21, and the unlocking ring gear 12 can rotate with the guide inner tube 9 through the meshing transmission of the unlocking gear 13. When the guide inner tube 9 rotates, the ramp boss 18 can be retracted into the inside of the guide outer tube 10 through the guidance of the arc edge 19. At this time, the guide inner tube 9 can be extended from the guide outer tube 10 to complete the resetting of the floating pressure plate 7 and the pressure plate 8.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A hemostatic device for cardiovascular angiography, characterized in that: The invention comprises a push-locking mechanism (1), a pressure fine-tuning mechanism (2) and a double-strand binding mechanism (3); the push-locking mechanism (1) comprises a double-layer pressure-stabilizing component (4), a guide locking component (5) and a rotation unlocking component (6); the guide locking component (5) is evenly arranged in an annular shape in the double-layer pressure-stabilizing component (4); the rotation unlocking component (6) is rotatably arranged on the double-layer pressure-stabilizing component (4); the pressure fine-tuning mechanism (2) is arranged in the push-locking mechanism (1); and the double-strand binding mechanism (3) is arranged on both sides of the push-locking mechanism (1).

2. A hemostatic device for cardiovascular angiography according to claim 1, characterized in that: The double-layer pressure stabilizing assembly (4) comprises a floating pressure plate (7) and a pressure plate (8), wherein the floating pressure plate (7) and the pressure plate (8) are arranged in parallel with each other, and the guide locking assembly (5) is arranged in an annular shape between the floating pressure plate (7) and the pressure plate (8), and the guide locking assembly (5) can limit and guide the relative movement of the floating pressure plate (7) and the pressure plate (8).

3. A hemostatic device for cardiovascular angiography according to claim 2, characterized in that: The guide locking assembly (5) comprises a guide inner tube (9) and a guide outer tube (10), one end of the guide inner tube (9) is provided with a gear shaft (11), the gear shaft (11) is rotatably arranged on the pressure plate (8), the guide outer tube (10) is fixedly connected to the floating pressure plate (7), the guide inner tube (9) is capable of rotating and sliding in the guide outer tube (10), a locking window (20) is provided at the bottom of the guide outer tube (10), an elastic sheet (17) is provided at the end of the guide inner tube (9), a slope boss (18) matching the locking window (20) is provided on the elastic sheet (17), and a curved edge (19) is also provided on one side of the slope boss (18).

4. A hemostatic device for cardiovascular angiography according to claim 3, characterized in that: The pressure plate (8) is provided with a convex ring (16), and the rotary unlocking assembly (6) comprises an unlocking gear ring (12) and an unlocking gear (13). The unlocking gear ring (12) is rotatably arranged on the convex ring (16), and a handle (21) is provided on the unlocking gear ring (12). The unlocking gear (13) is fixedly connected to the gear shaft (11), and the unlocking gear (13) and the unlocking gear ring (12) are meshed and transmitted.

5. A hemostatic device for cardiovascular angiography according to claim 4, characterized in that: The pressure fine-tuning mechanism (2) comprises a pressing component (22) and a pressure regulating component (23); a sliding hole (14) is provided on the floating pressure plate (7); the pressing component (22) is slidably disposed in the sliding hole (14); a threaded hole (15) is provided on the pressure plate (8); and the pressure regulating component (23) is rotatably disposed in the threaded hole (15).

6. A hemostatic device for cardiovascular angiography according to claim 5, characterized in that: The pressure regulating assembly (23) comprises an adjusting screw (27) and a pressure spring (28); the adjusting screw (27) and the threaded hole (15) are threadedly connected, and the axial position of the adjusting screw (27) relative to the pressure plate (8) can be controlled by rotating the adjusting screw (27); the pressure spring (28) is arranged between the adjusting screw (27) and the pressure assembly (22).

7. A hemostatic device for cardiovascular angiography according to claim 6, characterized in that: The compression assembly (22) comprises a sliding pressure cover (24), the sliding pressure cover (24) is provided with air holes (29) evenly distributed in a ring shape, the interior of the sliding pressure cover (24) is provided with hemostatic cotton (25), the exterior of the sliding pressure cover (24) is provided with a connecting platform (26), and the pressure spring (28) is provided between the adjusting screw (27) and the connecting platform (26).

8. A hemostatic device for cardiovascular angiography according to claim 7, characterized in that: The double-strand binding mechanism (3) comprises an external fastening component (30) and an elastic band (31), wherein the external fastening component (30) is arranged on both sides of the floating pressure plate (7) and the pressure plate (8).

9. A hemostatic device for cardiovascular angiography according to claim 8, characterized in that: The external fastening assembly (30) comprises a chain (32), a first strap (33), a second strap (34) and a connecting buckle (35); the chain (32) array is arranged on both sides of the pressure plate (8); the chains (32) are rotatably connected to each other; the first strap (33) is arranged at the end of the chain (32); the second strap (34) is arranged at the end of the first strap (33); the second straps (34) on both sides are connected via the connecting buckle (35); and the position of the connecting buckle (35) on the second strap (34) can be adjusted.

10. A hemostatic device for cardiovascular angiography according to claim 9, characterized in that: The elastic band (31) is arranged between the second binding band (34) and the floating pressure plate (7).

Citation Information

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