Adjustable compression hemostasis nursing device for radial artery puncture point after cardiac intervention

Abstract

The application discloses a radial artery puncture point adjustable pressure hemostasis nursing device after cardiac intervention, and belongs to the technical field of medical equipment, which comprises a support frame, a sliding adjustment assembly and a self-adaptive air bag locking assembly; the support frame is a rectangular integral forming structure, and wrist flexible fixing assemblies for being mounted on wrists are arranged on the two sides of the support frame; the sliding adjustment assembly comprises a sliding frame, a sliding way, a sliding block, a screw rod, a dial and a pressing plate; the sliding frame is slidingly assembled on the support frame; the middle part of the sliding frame is provided with the sliding way; the sliding block is slidingly connected in the sliding way; the screw hole is vertically arranged on the sliding block; and the screw rod is threadedly connected with the screw hole; the application has the advantages of air bag linkage automatic locking, triangular elastic rope self-adaptive limiting, double-dimension pressure regulating, idle component interlocking storage structure, automatic locking anti-slip when being worn, relaxed wrist restraint and improved comfort after hemostasis, overall interlocking fixation when being stored, and reduced storage volume.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to an adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology. Background Technology

[0002] Following radial artery interventional procedures in cardiology, continuous external pressure is required at the puncture site for hemostasis. Currently, the mainstream clinical approach uses a wrist-type pressure hemostat, relying on a strap for fixation and a single screw plate for pressure application to meet basic hemostasis needs. However, this setup has the following drawbacks: First, the pressure adjustment method is singular, relying solely on the screw to achieve vertical pressure at the puncture site. The wrist restraint force cannot be adaptively adjusted; excessively tight binding can compress wrist blood vessels and nerves, causing numbness and ischemia in the hand, while excessively loose binding can cause device displacement, bleeding at the puncture site, and hematoma formation. Second, traditional devices lack a self-locking storage structure. During transport and storage, the sliding frame, curved plate, and screw are all in a loose, mobile state, making it prone to screw rotation and slider displacement. The overall device occupies a large storage space and is easily damaged during transport. Third, for adjustable devices, manual locking is required after adjustment, which is inconvenient.

[0003] To address the shortcomings of existing radial artery hemostats, such as cumbersome operation, insufficient wearing comfort, and inconvenient storage and transportation, an adjustable pressure hemostasis nursing device for the radial artery puncture site after interventional cardiology is needed to solve the above problems. Summary of the Invention

[0004] To address the problems of existing technologies, this invention provides an adjustable pressure hemostasis nursing device for radial artery puncture sites after interventional cardiology procedures. It features automatic locking with an airbag linkage, adaptive limiting with a triangular elastic cord, dual-dimensional pressure adjustment, and an interlocking storage structure for unused components. When worn, it automatically locks to prevent slippage; after hemostasis, the wrist restraint can be relaxed to improve comfort; and when not in use, it is interlocked and fixed, reducing storage volume. These advantages solve the problems of existing technologies.

[0005] This invention is implemented as follows: an adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology, comprising a support frame, a sliding adjustment component, and an adaptive airbag locking component; the support frame is a rectangular integral structure, and flexible wrist fixation components for installation on the wrist are provided on both sides of the support frame; the sliding adjustment component includes a sliding frame, a slide rail, a slider, a screw, a dial, and a pressure plate; the sliding frame is slidably assembled to the support frame, the slide rail is provided in the middle of the sliding frame, the slider is slidably connected in the slide rail, the slider is vertically provided with a screw hole, the screw is threaded to the screw hole, the dial is fixedly connected to the top of the screw, and the pressure plate is connected to the bottom of the screw; the sliding frame is provided with a through hole; the adaptive airbag locking component includes two first airbags and at least one second airbag, the two first airbags are symmetrically fixed on both sides of the bottom of the support frame, the second airbag is inserted into the through hole, and the internal air passages of the first airbags and the second airbags are in a closed communication.

[0006] As a preferred embodiment of the present invention, the side of the support frame is provided with a sliding groove; it also includes a flexible wrist fixing component, the flexible wrist fixing component including a first arc plate, a second arc plate, a slide bar and a limiting block, the first arc plate is fixedly connected to the support frame, the second arc plate is fixedly connected to the slide bar, the slide bar is slidably assembled in the sliding groove of the side wall of the support frame, the limiting block is fixedly connected to the slide bar, and the limiting block has a through hole.

[0007] As a preferred embodiment of the present invention, the upper surface of the limiting block is flush with or lower than the upper surface of the support frame to avoid obstructing the lateral sliding of the sliding frame.

[0008] As a preferred embodiment of the present invention, a column is fixedly connected to the side of the upper surface of the sliding frame, the column and the limiting block with a wire hole are located on the same side, and the side of the dial is provided with a receiving groove.

[0009] It also includes a triangular elastic rope adaptive limiting component, which contains an elastic rope that forms a triangular three-point fixing structure, with the three points corresponding to the wire hole, the column, and the receiving groove, respectively.

[0010] As a preferred embodiment of the present invention, the pressure plate is detachably connected to the bottom end of the screw, and a disposable sterile gasket is provided on the pressure plate.

[0011] As a preferred embodiment of the present invention, the second arc-shaped plate is integrally formed with a connecting strip having an L-shaped cross-section. The connecting strip can be snapped onto the edge of the support frame. A limiting plate is fixedly connected to the connecting strip, and a plug is provided on the side of the limiting plate.

[0012] As a preferred embodiment of the present invention, the upper end of the slider is provided with a locking notch, which is connected to the screw hole; when not in use and stored, the sliding frame moves to the side of the support frame, the second arc plate is pushed to a position that fits against the support frame, the insert rod is inserted into the locking notch, and the insert rod fits against the outer wall of the screw.

[0013] As a preferred embodiment of the present invention, the edge of the insert rod is provided with an arc-shaped contact surface; after the insert rod is engaged with the slider, the arc-shaped contact surface presses against the outer wall of the screw, and the screw and dial are restricted from rotating by friction.

[0014] As a preferred embodiment of the present invention, the first arc-shaped plate includes a main body and a curved portion, wherein one side of the main body is fixedly connected to the support frame and the other side is fixedly connected to the curved portion; the main body and the support frame are of equal width.

[0015] As a preferred embodiment of the present invention, the support frame is integrally injection molded from medical-grade polypropylene with rounded edges; the sliding frame is injection molded from medical-grade polyoxymethylene.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. It adopts a dual pressure adjustment structure with vertical and precise pressure application at the puncture point and lateral adaptive fixation. It can precisely control the hemostatic pressure through the screw plate and automatically match the fixation tension of different wrist circumferences through the linkage airbag. Combined with the design of automatically releasing lateral pressure during pressure adjustment, it avoids the problems of limb swelling, pressure sores, and obstruction of venous return caused by prolonged pressure of traditional hemostatic devices.

[0018] 2. When wearing the device, the airbag automatically locks in place after the sliding frame is in position, eliminating the need for additional straps or buckles. When adjusting the pressure, the elastic cord simultaneously switches states, eliminating the need to adjust multiple components step by step. A single medical staff member can complete the wearing and pressure calibration within seconds, making it suitable for emergency and ward scenarios requiring rapid post-interventional treatment.

[0019] 3. The integrated structure has no loose or easily lost parts. When stored, the insertion rod can lock all moving components simultaneously to prevent damage from shaking during transportation and storage. The pressure plate is equipped with an independent disposable sterile pad, and the part that comes into contact with the wound is changed after each person. There is no need to replace the entire device. It can be reused after disinfection, which reduces the risk of hospital-acquired infection and controls the cost of use. Attached Figure Description

[0020] Figure 1 This is a first-view three-dimensional structural diagram of the adjustable pressure hemostasis nursing device for radial artery puncture point after interventional cardiology provided in this embodiment of the invention.

[0021] Figure 2 This is provided by the embodiments of the present invention. Figure 1A magnified structural diagram of part A in the middle;

[0022] Figure 3 This is provided by the embodiments of the present invention. Figure 1 A magnified structural diagram of part B in the middle section;

[0023] Figure 4 This is a second-view three-dimensional structural diagram of the adjustable pressure hemostasis nursing device for radial artery puncture point after interventional cardiology provided in this embodiment of the invention.

[0024] Figure 5 This is provided by the embodiments of the present invention. Figure 4 A magnified structural diagram of section C;

[0025] Figure 6 This is provided by the embodiments of the present invention. Figure 4 A magnified structural diagram of section D in the middle;

[0026] Figure 7 This is a top view schematic diagram of the adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology provided in this embodiment of the invention;

[0027] Figure 8 This is provided by the embodiments of the present invention. Figure 7 A magnified structural diagram of section E in the middle;

[0028] Figure 9 This is a schematic diagram of the main structure of the adjustable pressure hemostasis nursing device for radial artery puncture point after interventional cardiology provided in this embodiment of the invention;

[0029] Figure 10 This is provided by the embodiments of the present invention. Figure 9 A magnified structural diagram of section F in the middle.

[0030] In the diagram: 1. Support frame; 2. Sliding frame; 3. Slide rail; 4. Slider; 5. Screw; 6. Dial; 7. Pressure plate; 8. Screw hole; 9. Through hole; 10. First airbag; 11. Second airbag; 12. Slide groove; 13. First arc plate; 14. Second arc plate; 15. Slide bar; 16. Limiting block; 17. Threading hole; 18. Column; 19. Receiving groove; 20. Elastic rope; 21. Connecting bar; 22. Limiting plate; 23. Insert rod; 24. Engaging notch. Detailed Implementation

[0031] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0032] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] like Figures 1 to 10As shown in the embodiment of the present invention, an adjustable pressure hemostasis nursing device for radial artery puncture point after interventional cardiology includes a support frame 1, a sliding adjustment component, and an adaptive airbag locking component. The support frame 1 is a rectangular integral structure, and both sides of the support frame 1 are provided with flexible wrist fixation components for installation on the wrist. The sliding adjustment component includes a sliding frame 2, a slide rail 3, a slider 4, a screw 5, a dial 6, and a pressure plate 7. The sliding frame 2 is slidably assembled on the support frame 1. The middle of the sliding frame 2 is provided with a slide rail 3, and the slider 4 is slidably connected in the slide rail 3. The slider 4 is vertically provided with a screw hole 8. The screw 5 is threadedly connected to the screw hole 8. The top end of the screw 5 is fixedly connected to the dial 6, and the bottom end of the screw 5 is connected to the pressure plate 7. The sliding frame 2 is provided with a through hole 9. The adaptive airbag locking component includes two first airbags 10 and at least one second airbag 11. The two first airbags 10 are symmetrically fixed on both sides of the bottom of the support frame 1, and the second airbag 11 is inserted into the through hole 9. The air passages of the first airbags 10 and the second airbags 11 are in a closed communication.

[0034] Specifically, the support frame 1 is made of medical-grade polypropylene (PP) through one-piece injection molding. This material is non-toxic and non-irritating, has sufficient strength and is lightweight. It can withstand the commonly used ethylene oxide sterilization method in clinical practice and meets the requirements for repeated use. During production, the sliding grooves 12 for installing the sliding strips 15 are directly injection molded on both sides of the frame. All edges are rounded to avoid scratching the skin of medical staff or patients. The surface of the frame is matte and skin-friendly, which reduces reflection and improves the feel of holding and wearing.

[0035] The sliding frame 2 is injection molded from medical-grade polyoxymethylene (POM, commonly known as acetal). This material has excellent self-lubricating properties and strong wear resistance, and will not cause jamming or shedding problems even after long-term sliding use. The slide rail 3 in the middle of the sliding frame is integrally injection molded with the frame body, and the dimensional accuracy is controlled within ±0.1mm to ensure smooth and non-shaking fit with the slider 4. The through hole 9 on the frame body is pre-drilled during injection molding. The upright column 18 on the side of the frame body is also integrally injection molded for attaching the elastic rope 20.

[0036] The slider is also injection molded from medical-grade POM material, and its shape and size are precisely matched with the slide rail of the sliding frame, allowing it to slide smoothly laterally along the slide rail. The screw hole 8 in the middle of the slider is directly formed during injection molding, and it uses a standard coarse thread to cooperate with the screw 5. The upper end of the slider has an integrally reserved locking notch 24, which is connected to the screw hole. In the retracted state, it can cooperate with the insertion rod 23 to achieve locking. The entire surface of the slider is polished to further reduce the frictional resistance with the slide rail.

[0037] The screw is made of 304 medical-grade stainless steel through machining. Stainless steel is high-strength, corrosion-resistant, and will not rust even after repeated sterilization. The thread adopts a standard M4 coarse thread design, which fits smoothly with the screw hole of the slider, and rotates without jamming or stripping. The pressure plate 7 is injection molded from medical-grade PP material. The bottom surface is designed with a slight arc to match the physiological curvature of the wrist, improving the fit and evenness of pressure hemostasis. The upper part of the pressure plate has a buckle that matches the bottom of the screw, which can be quickly and detachably connected to the screw for easy disassembly, sterilization, or replacement. The pressure plate comes with an independent disposable sterile medical sponge pad sterilized with ethylene oxide. Before use, the pad is attached to the bottom of the pressure plate. It is changed after each use, which avoids cross-infection and improves patient comfort and reduces the risk of pressure sores.

[0038] Both the first airbag 10 and the second airbag 11 are made of medical-grade silicone material through a heat-sealing process. Silicone material has good biocompatibility, good elasticity, and is non-allergenic. Long-term contact with the skin will not cause discomfort. The two first airbags are symmetrically arranged on both sides of the bottom of the support frame and are bonded and fixed to the frame with medical-grade adhesive.

[0039] The support frame 1 has a sliding groove 12 on its side; it also includes a flexible wrist fixing component, which includes a first arc plate 13, a second arc plate 14, a slide bar 15, and a limiting block 16. The first arc plate 13 is fixedly connected to the support frame 1, and the second arc plate 14 is fixedly connected to the slide bar 15. The slide bar 15 is slidably fitted into the sliding groove 12 on the side wall of the support frame 1. The limiting block 16 is fixedly connected to the slide bar 15, and the limiting block 16 has a through hole 17. The upper surface of the limiting block 16 is flush with or lower than the upper surface of the support frame 1 to avoid obstructing the lateral sliding of the sliding frame 2. A column 18 is fixedly connected to the side of the upper surface of the sliding frame 2. The column 18 and the limiting block 16 with a wire hole 17 are located on the same side. The dial 6 has a receiving groove 19 on its side. It also includes a triangular elastic rope adaptive limiting component, which includes an elastic rope 20. The elastic rope 20 forms a triangular three-point fixing structure, with the three points corresponding to the wire hole 17, the column 18 and the receiving groove 19, respectively. Furthermore, the first arc-shaped plate 13 includes a main body and a curved part. One side of the main body is fixedly connected to the support frame 1, and the other side is fixedly connected to the curved part. The main body and the support frame 1 have the same width.

[0040] The installation process is as follows:

[0041] Initially, the sliding frame 2 is located on one side of the second arc plate 14. First, the inner surface of the second arc plate 14 is placed against the wrist. At this time, the two first airbags 10 are slightly in contact with the wrist skin. Then, the sliding frame 2 is manually slid laterally, which can simultaneously drive the second arc plate 14 to move in the same direction to fit the wrist. When the second arc plate 14 is fastened to the wrist, the wrist will squeeze the first airbag 10. The gas inside the first airbag 10 is filled into the second airbag 11. The second airbag 11 expands and fixes the sliding frame 2 to achieve automatic locking.

[0042] The adjustment logic of the triangular elastic rope 20 is as follows:

[0043] When the dial 6 is turned counterclockwise, the position of the pressure plate 7 can be adjusted downwards, allowing it to press on the area requiring hemostasis. Furthermore, since one apex of the elastic cord 20 is engaged in the receiving groove 19, the orientation of the receiving groove 19 changes during the first rotation of the dial 6, causing the elastic cord 20 to disengage from the groove 19. The elastic cord 20 then switches from three-point fixation to two-point fixation. This setup has two effects: First, after the sliding frame 2 reaches the desired position, the tension of the elastic cord 20 decreases, reducing the pressure exerted on the wrist by the second arc-shaped plate 14, thus slightly relieving lateral wrist restraint pressure and making the user more comfortable. It should be noted that since the pressure plate 7 is pressed against the wrist at this time, it acts as a support point; therefore, even if the pressure of the second arc-shaped plate 14 decreases, it will not disengage. Second, the sliding frame 2 can be further adjusted in a slightly adjustable position, as follows: the clamping force of the second arc plate 14 decreases, and the squeezing force of the wrist on the first airbag 10 also decreases slightly. At this time, the squeezing force (friction) of the second airbag 11 on the sliding frame 2 decreases, and the sliding frame 2 has a basis for slightly adjusting its position. In addition, the elastic rope 20 changes from three-point support to two-point support, so the tension force on the sliding frame 2 decreases, and the sliding frame 2 can move more easily away from the second arc plate.

[0044] In summary, the device features a dual-dimensional pressure regulation structure. The first is a mechanical vertical pressure regulation structure at the puncture point, composed of the screw 5, dial 6, and pressure plate 7. The second is an overall fixed pressure adaptive pressure regulation structure, composed of the first airbag 10 and the second airbag 11 working together. Specifically, the pressure plate 7 is detachably connected to the bottom of the screw 5, and a disposable sterile pad is provided on the pressure plate 7.

[0045] Furthermore, the second arc-shaped plate 14 is integrally formed with an L-shaped connecting strip 21. The connecting strip 21 can be snapped onto the edge of the support frame 1. A limiting plate 22 is fixedly connected to the connecting strip 21, and a rod 23 is provided on the side of the limiting plate 22. The upper end of the slider 4 has a snap-fit ​​notch 24, which communicates with the screw hole 8. When not in use and stored, the sliding frame 2 moves to the side of the support frame 1, the second arc-shaped plate 14 is pushed to a position that fits against the support frame 1, the rod 23 is inserted into the snap-fit ​​notch 24, and the rod 23 fits against the outer wall of the screw 5. The edge of the rod 23 is provided with an arc-shaped contact surface. After the rod 23 snaps into the slider 4, the arc-shaped contact surface presses against the outer wall of the screw 5, and the friction force restricts the screw 5 and the dial 6 from rotating on their own.

[0046] This setting has the following effects:

[0047] In use, since the second arc plate 14 is close to the support frame 1, the connecting strip 21 fits against the edges of the upper and side surfaces of the support frame 1. At this time, it can play a reinforcing role and prevent the connection between the second arc plate 14 and the slide bar 15 from breaking.

[0048] In the stowed state, the sliding frame 2 moves to the side of the support frame 1, the second arc plate 14 is pushed to a position that fits against the support frame 1, and the slider 4 is moved so that the insertion rod 23 is inserted into the locking notch 24. At this time, the insertion rod 23 fits against the outer wall of the screw 5. Therefore, through this setting, the positions of the sliding frame 2, the second arc plate 14, the slider 4 and the screw 5 are locked at the same time.

[0049] Working principle of the invention:

[0050] When wearing the device, align it with the wrist puncture point. The first arc-shaped plate 13 on the fixed side fits against the other side of the wrist. The horizontal sliding frame 2 moves the second arc-shaped plate 14 on the slide bar 15 to encircle the wrist. The wrist compresses the first airbags 10 on both sides of the bottom of the support frame 1. The gas inside the airbags is sealed and enters the second airbag 11 inserted into the through hole 9. After the second airbag 11 expands, it compresses the inner wall of the through hole 9 and automatically locks the position of the sliding frame 2, completing the overall fixation of the device. Rotate the top dial 6 to drive the screw 5 to screw into the screw hole 8 on the slider 4 and press down the bottom pressure plate 7 to precisely adjust the vertical hemostasis pressure at the puncture point. When the dial 6 rotates for the first turn, the triangular elastic rope 20 automatically switches from three-point fixation to two-point fixation - the initial three points are respectively fixed to the thread holes on the limiting block 16. 17. The uprights 18 on the side of the sliding frame 2 and the receiving groove 19 on the side of the dial 6, after switching, the elastic rope 20 is released from the receiving groove 19, and the lateral restraint force is released simultaneously, unlocking the fine adjustment authority of the sliding frame 2. The slider 4 can be slid along the slide 3 to further calibrate the compression position to the hemostasis state. When storing, push the sliding frame 2 to the side along the slide groove 12 on the side of the support frame 1. The second arc plate 14 is snapped into place with the support frame 1 by the integrally formed L-shaped connecting strip 21. Move the slider 4 so that the insert 23 on the side of the upper limit plate 22 of the connecting strip 21 is snapped into the snap-fit ​​notch 24 at the upper end of the slider 4. The arc surface of the insert 23 is attached to the outer wall of the screw 5, which can lock all moving parts at one time, preventing the screw 5 and the dial 6 from rotating on their own, which is convenient for storage and transportation.

[0051] It should be noted that the relational terms such as "first" and "second" used in this specification are only used to distinguish different entities or operations, and do not represent or imply a specific actual relationship, priority, or order between these entities or operations. Furthermore, the terms "including," "comprising," and other similar expressions in this specification are all non-closed, encompassing expressions. That is, a process, method, product, or equipment incorporating the above elements covers not only the explicitly listed elements, but also other elements not explicitly listed, as well as elements inherent to the process, method, product, or equipment that do not require further description.

[0052] This specification has provided exemplary descriptions of the embodiments of the present invention. For those skilled in the art, various modifications, adjustments, substitutions, and variations can be made to the above embodiments without departing from the design principles and core spirit of the present invention. The legal protection scope of the present invention shall be determined by the scope of the appended claims and their equivalent technical solutions.

Claims

1. An adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology, characterized in that: Includes a support frame (1), a sliding adjustment assembly, and an adaptive airbag locking assembly; The support frame (1) is a rectangular integral molded structure, and both sides of the support frame (1) are provided with flexible wrist fixing components for installation on the wrist. The sliding adjustment assembly includes a sliding frame (2), a slide rail (3), a slider (4), a screw (5), a dial (6), and a pressure plate (7). The sliding frame (2) is slidably mounted on the support frame (1). The middle part of the sliding frame (2) is provided with a slide rail (3). The slider (4) is slidably connected in the slide rail (3). The slider (4) is vertically provided with a screw hole (8). The screw (5) is threadedly connected to the screw hole (8). The top end of the screw (5) is fixedly connected with the dial (6). The bottom end of the screw (5) is connected with the pressure plate (7). The sliding frame (2) is provided with a through hole (9). The adaptive airbag locking assembly includes two first airbags (10) and at least one second airbag (11). The two first airbags (10) are symmetrically fixed on both sides of the bottom of the support frame (1). The second airbag (11) is inserted into the through hole (9). The air passages of the first airbag (10) and the second airbag (11) are in a sealed communication.

2. The adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology surgery according to claim 1, characterized in that: The support frame (1) is provided with a sliding groove (12) on its side. It also includes a flexible wrist fixation component, which includes a first arc plate (13), a second arc plate (14), a slide bar (15), and a limiting block (16). The first arc plate (13) is fixedly connected to the support frame (1), and the second arc plate (14) is fixedly connected to the slide bar (15). The slide bar (15) is slidably assembled in the slide groove (12) on the side wall of the support frame (1). The limiting block (16) is fixedly connected to the slide bar (15), and the limiting block (16) has a thread hole (17).

3. The adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology surgery according to claim 2, characterized in that: The upper surface of the limiting block (16) is flush with or lower than the upper surface of the support frame (1) to avoid obstructing the lateral sliding of the sliding frame (2).

4. The adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology surgery according to claim 3, characterized in that: The upper surface of the sliding frame (2) is fixedly connected to a column (18), the column (18) and the limiting block (16) with a wire hole (17) are located on the same side, and the dial (6) is provided with a receiving groove (19) on its side. It also includes a triangular elastic rope adaptive limiting component, which includes an elastic rope (20) forming a triangular three-point fixing structure, with the three points corresponding to the thread hole (17), the column (18), and the receiving groove (19), respectively.

5. The adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology surgery according to claim 4, characterized in that: The pressure plate (7) is detachably connected to the bottom end of the screw (5), and a disposable sterile pad is provided on the pressure plate (7).

6. The adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology surgery according to claim 5, characterized in that: The second arc plate (14) is integrally formed with a connecting strip (21) with an L-shaped cross section. The connecting strip (21) can be snapped onto the edge of the support frame (1). A limiting plate (22) is fixedly connected to the connecting strip (21). A plug rod (23) is provided on the side of the limiting plate (22).

7. The adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology surgery according to claim 6, characterized in that: The upper end of the slider (4) is provided with a locking notch (24), which is connected to the screw hole (8); when idle and stored, the sliding frame (2) moves to the side of the support frame (1), the second arc plate (14) is pushed to the position of fitting with the support frame (1), the insert rod (23) is inserted into the locking notch (24), and the insert rod (23) is attached to the outer wall of the screw (5).

8. The adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology surgery according to claim 7, characterized in that: The insertion rod (23) has an arc-shaped contact surface on its edge; after the insertion rod (23) and the slider (4) are engaged, the arc-shaped contact surface presses against the outer wall of the screw (5), and the screw (5) and the dial (6) are restricted to rotate by friction.

9. The adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology surgery according to claim 8, characterized in that: The first arc-shaped plate (13) includes a main body and a curved part. One side of the main body is fixedly connected to the support frame (1), and the other side is fixedly connected to the curved part. The main body and the support frame (1) are of equal width.

10. The adjustable pressure hemostasis nursing device for radial artery puncture site after interventional cardiology surgery according to claim 1, characterized in that: The support frame (1) is made of medical-grade polypropylene through injection molding, with rounded edges; the sliding frame (2) is made of medical-grade polyoxymethylene through injection molding.

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