A new arterial compression hemostat

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, especially a novel arterial compression hemostat, including fixed plate and fixed band, be equipped with pressure knob subassembly on fixed plate, be equipped with hour setting device and minute setting device on fixed plate, hour setting device and minute setting device all include base and the setting knob of rotatable to base, the surface of the base of hour setting device is uniformly distributed with a plurality of hour scales, the setting knob of hour setting device covers hour scale, and the setting knob of hour setting device is equipped with the hour display gap of showing an hour scale, the surface of the base of minute setting device is uniformly distributed with a plurality of minute scales, the setting knob of minute setting device covers minute scale, and the setting knob of minute setting device is equipped with the minute display gap of showing a minute scale. The utility model can record the time of the last adjustment pressure knob subassembly, and the pressure of compression puncture hole is adjusted at interval time point.

Description

Technical fields:

[0001] This utility model belongs to the field of medical device technology, specifically referring to a novel arterial compression hemostatic device. Background technology:

[0002] In recent years, interventional treatments via the radial artery have become increasingly common. Post-operative hemostasis techniques at the radial artery puncture site have improved in recent years. During the procedure, applying pressure to the puncture site for hemostasis is a crucial step. This is typically achieved using a pressure hemostat. Clinical studies have explored when to release the pressure hemostat; generally, it is released gradually every hour post-operatively, creating a gradual decompression process.

[0003] Chinese invention patent (publication number CN113171151A, application date 2021.04.16, publication date 2021.07.27) discloses a radial artery hemostatic compression band assembly with pressure indication, including a fixing plate and a rotating cap. The rotating cap is movably connected to the top of the fixing plate. Pressure scales are provided at both ends of the rotating cap. A spinning structure is provided inside the rotating cap. A spiral rod is vertically arranged inside the rotating cap. An elastic body is fixedly connected to the bottom end of the spiral rod. A fixing structure is provided at the bottom end of the fixing plate. The fixing structure includes a support pad, which is fixedly connected to the bottom end of one side of the fixing plate. A fixing strap is fixedly connected to one side of the fixing plate. A hook is fastened to the other side of the fixing plate. The other side of the fixing strap is fixedly connected to the fixing plate through the hook. A Velcro is provided on the other side of the bottom end of the fixing strap.

[0004] The shortcomings of the aforementioned radial artery hemostasis compression band assembly are: it lacks a time display device, making it easy for medical staff to forget the last adjustment time, and making it inconvenient to adjust the pressure of the compression puncture hole at intervals. Summary of the Invention:

[0005] The purpose of this invention is to provide a novel arterial compression hemostat that can record the time of the most recent adjustment of the pressure knob assembly, facilitating the adjustment of the pressure at intervals for compressing the puncture site.

[0006] This utility model is implemented as follows:

[0007] A novel arterial compression hemostat includes a fixing plate and a fixing strap. The fixing plate is equipped with a pressure knob assembly, an hour setting device, and a minute setting device. Each hour and minute setting device includes a base and a setting knob mounted on the base and rotatable relative to the base. The upper surface of the base of the hour setting device is evenly distributed with multiple hour graduations. The setting knob of the hour setting device covers the hour graduations and has an hour display notch for displaying one hour graduation. The upper surface of the base of the minute setting device is evenly distributed with multiple minute graduations. The setting knob of the minute setting device covers the minute graduations and has a minute display notch for displaying one minute graduation.

[0008] In the aforementioned novel arterial compression hemostat, the base is provided with serrated grooves, the number of which is the same as the number of corresponding scales. The setting knob is provided with serrated protrusions that are adapted to the serrated grooves. The setting knob is circumferentially positioned on the base through the serrated grooves and serrated protrusions.

[0009] In the aforementioned novel arterial compression hemostat, the base is provided with screws and is fixedly mounted on the fixing plate by the screws. The setting knob is provided with a magnet, and the setting knob is mounted on the base by attracting the magnetic force of the screws through the magnet.

[0010] In the aforementioned novel arterial compression hemostatic device, the set rotation includes, from top to bottom, a cylindrical and coaxially arranged knob, a blocking part, a limiting part, and a connecting part. The diameter of the knob is smaller than the diameter of the blocking part, the diameter of the limiting part is smaller than the diameter of the blocking part, and the diameter of the connecting part is smaller than the diameter of the limiting part. A serrated protrusion is disposed on the limiting part and located below it. The connecting part is a hollow structure with an open lower end. The magnet is disposed inside the connecting part. A limiting protrusion ring is provided on the outer periphery of the lower end of the connecting part. The base has a stepped hole in the middle, and the corresponding scale is evenly distributed on the outer circumference of the stepped hole. The stepped hole includes a limiting hole, a mounting hole and a through hole from top to bottom. The serrated groove is set on the end face of the limiting hole. The shank of the screw passes through the through hole and is screwed to the fixing plate. The head of the screw abuts against the end face of the mounting hole. The side wall of the mounting hole is recessed to form an annular groove. The limiting protrusion can slide axially in the annular groove. The upper end of the annular groove abuts against the limiting protrusion for upper limit and the lower end abuts against the limiting protrusion for lower limit.

[0011] In the aforementioned novel arterial compression hemostat, the side wall of the connecting part is provided with a downward-facing notch.

[0012] In the aforementioned novel arterial compression hemostat, the pressure knob assembly includes a hollow fixed body mounted on a fixed plate. A nut is slidably mounted inside the fixed body, and a lead screw is screwed into the middle of the nut. The lower end of the lead screw passes through the fixed plate and connects to the compression assembly. A circumferential limiting structure is provided between the fixed plate and the lead screw to restrict the circumferential rotation of the lead screw. A pressure knob that drives the nut to rotate is rotatably connected to the upper end of the fixed body. A spring with elasticity between the pressure knob and the nut causes the nut to move downward. The fixed body is made of transparent material and has pressure markings on it.

[0013] In the aforementioned novel arterial compression hemostat, the fixing body and the fixing plate are integrally molded by injection molding.

[0014] In the above-mentioned novel arterial compression hemostat, the upper end of the fixing body is provided with a limiting protrusion, the lower end face of the pressure knob is recessed to form an installation groove that matches the limiting protrusion, and a limiting plate is fixed below the pressure knob by welding, with the limiting protrusion limited between the inner end face of the installation groove and the limiting plate.

[0015] In the aforementioned novel arterial compression hemostat, the compression assembly includes a mounting plate disposed at the lower end of a lead screw, an elastic band being fitted over the mounting plate, and a compression plate being detachably connected to the elastic band located below the mounting plate.

[0016] In the aforementioned novel arterial compression hemostat, the compression plate is detachably connected to an elastic band via a buckle. The buckle includes a limiting block and a connecting post connecting the limiting block and the compression plate. The elastic band located below the mounting plate is fitted onto the connecting post and is positioned between the limiting block and the compression plate.

[0017] In the aforementioned novel arterial compression hemostat, the compression plate and the buckle are integrally molded by injection molding.

[0018] In the aforementioned novel arterial compression hemostat, the mounting plate is C-shaped with the opening facing downwards.

[0019] In the aforementioned novel arterial compression hemostat, the fixing plate is provided with an anti-rotation hole through which the lead screw passes. The circumferential limiting structure includes an anti-rotation plane one on the lead screw and an anti-rotation plane two on the anti-rotation hole. The anti-rotation hole restricts the circumferential rotation of the lead screw through the anti-rotation plane one and the anti-rotation plane two.

[0020] In the above-mentioned novel arterial compression hemostat, there are two anti-rotation planes arranged opposite each other, and two anti-rotation planes arranged opposite each other.

[0021] In the aforementioned novel arterial compression hemostat, a fixed guide post is provided vertically below the pressure knob, and the nut is slidably fitted onto the fixed guide post. The pressure knob drives the nut to rotate through the fixed guide post.

[0022] In the aforementioned novel arterial compression hemostat, there are two or more fixed guide posts evenly distributed around the circumference of the lead screw.

[0023] In the aforementioned novel arterial compression hemostat, the lead screw and the fixed guide post are both located inside the spring.

[0024] In the aforementioned novel arterial compression hemostat, a red rubber washer is provided between the spring and the nut.

[0025] In the aforementioned novel arterial compression hemostat, the fixing plate, base, setting knob, fixing body, nut, lead screw, pressure knob, mounting plate, elastic band, compression plate, buckle, fixing guide post, and limiting plate are all made of transparent material.

[0026] In the aforementioned novel arterial compression hemostat, the fixing plate, base, setting knob, fixing body, nut, screw, pressure knob, mounting plate, buckle, fixing guide post, and limiting plate are made of transparent plastic, which is PC (polycarbonate), PP (polypropylene), or PE (polyethylene).

[0027] In the aforementioned novel arterial compression hemostat, the elastic band and compression plate are made of transparent silicone.

[0028] In the aforementioned novel arterial compression hemostat, the fixing plate has through grooves at both ends. One end of the fixing strap passes through one of the through grooves and is fixed to the fixing strap, while the other end passes through the other through groove and is attached to the fixing strap by Velcro.

[0029] In the aforementioned novel arterial compression hemostat, the fixing band is made of antibacterial nylon mesh fabric.

[0030] The outstanding advantages of this utility model compared to the prior art are:

[0031] 1. This utility model is equipped with an hour setting device and a minute setting device on the fixed plate, which can record the time of the most recent adjustment of the pressure knob assembly, so as to facilitate the adjustment of the pressure of the puncture hole at intervals;

[0032] 2. The setting knob of this utility model is installed on the base by the magnetic force of the screw attracted by the magnet, so that the setting knob can be firmly attached to the base, and when the setting knob needs to be rotated, the setting knob can be moved upward to facilitate the rotation of the setting knob. Attached image description:

[0033] Figure 1 This is a perspective view of the present invention;

[0034] Figure 2 This is an exploded view of this utility model;

[0035] Figure 3 This is a perspective view of the setting knob of the hour setting device of this utility model;

[0036] Figure 4 This is a perspective view of the base of the hour setting device of this utility model;

[0037] Figure 5 This is a perspective view of the fixing plate and fixing body of this utility model;

[0038] Figure 6 This is a cross-sectional view of the present invention.

[0039] Reference numerals: 1. Fixing plate; 2. Fixing strap; 3. Base; 4. Setting knob; 4a. Knob part; 4b. Covering part; 4c. Limiting part; 4d. Connecting part; 4e. Limiting protrusion; 5. Hour scale; 6. Hour display notch; 7. Minute scale; 8. Minute display notch; 9. Serrated groove; 10. Serrated protrusion; 11. Screw; 12. Magnet; 13. Stepped hole; 13a. Limiting hole; 13b. Mounting hole; 13c. Through hole; 13 d. Annular groove; 14. Fixed body; 15. Nut; 16. Lead screw; 17. Pressure knob; 18. Spring; 19. Pressure scale; 20. Mounting plate; 21. Elastic band; 22. Pressure plate; 23. Buckle; 23a. Limiting block; 23b. Connecting post; 24. Anti-rotation hole; 25. Anti-rotation plane one; 26. Anti-rotation plane two; 27. Fixed guide post; 28. Red rubber washer; 29. ​​Limiting flange; 30. Limiting plate; 31. Through groove. Detailed implementation method:

[0040] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —6:

[0041] A novel arterial compression hemostat includes a fixing plate 1 and a fixing strap 2. The fixing plate 1 is equipped with a pressure knob assembly, an hour setting device, and a minute setting device. Each hour setting device includes a base 3 and a setting knob 4 mounted on the base 3 and rotatable relative to the base 3. The upper surface of the base 3 of the hour setting device is evenly distributed with multiple hour scales 5. The setting knob 4 of the hour setting device covers the hour scales 5 and has an hour display notch 6 for displaying one hour scale 5. The upper surface of the base 3 of the minute setting device is evenly distributed with multiple minute scales 7. The setting knob 4 of the minute setting device covers the minute scales 7 and has a minute display notch 8 for displaying one minute scale 7.

[0042] The working principle of this utility model is as follows: Figure 1-6As shown, after each adjustment of the pressure knob assembly, the setting knob 4 of the hour setting device is rotated so that the hour scale 5 displayed by the hour display notch 6 is the hour time at this time, and the setting knob 4 of the minute setting device is rotated so that the minute scale displayed by the minute display notch 8 is the minute time at this time. That is, the hour and minute at this time are recorded, so that medical staff can clearly know the time of the most recent adjustment of the pressure knob assembly, which is convenient for adjusting the pressure of the puncture hole at intervals.

[0043] To ensure that each rotation of the setting knob 4 accurately reaches the adjacent scale and to prevent accidental rotation of the setting knob 4, such as Figure 2-4 As shown, the base 3 is provided with serrated grooves 9, the number of serrated grooves 9 is the same as the number of corresponding scales, and the setting knob 4 is provided with serrated protrusions 10 that are adapted to the serrated grooves 9. The setting knob 4 is circumferentially positioned on the base 3 through the serrated grooves 9 and the serrated protrusions 10.

[0044] In this embodiment, the hour increments 5 are set to 12, namely 1-12 (e.g., ...). Figure 1 , 2 As shown in the figure, the hour setting device is provided with 12 serrated grooves 9 and serrated protrusions 10.

[0045] In this embodiment, the minute scale 5 is set with 12 segments, that is, a minute scale 5 is set every 5 minutes (e.g., ...). Figure 1 , 2 As shown in the figure, the minute setting device is provided with 12 serrated grooves 9 and serrated protrusions 10.

[0046] Mounting structure of base 3: as follows Figure 2-4 As shown, the base 3 is provided with screws 11 and is fixedly mounted on the fixing plate 1 by the screws 11. The setting knob 4 is provided with a magnet 12, and the setting knob 4 is mounted on the base 3 by the magnetic force of the screw 11 attracted by the magnet 12. When it is necessary to rotate the setting knob 4, the setting knob 4 is lifted upward against the magnetic force of the magnet 12. After the setting knob 4 is rotated to the correct position, the setting knob 4 is released, and the setting knob 4 moves downward and fits against the base 3 under the magnetic force of the screw 11 attracted by the magnet 12. The setting knob 4 is provided with serrated protrusions 10 that are adapted to the serrated groove 9. The setting knob 4 is circumferentially positioned on the base 3 by the serrated groove 9 and the serrated protrusions 10. In this invention, the setting knob 4 is mounted on the base 3 by the magnetic force of the screw 11 attracted by the magnet 12, so that the setting knob 4 can be firmly attached to the base 3, and when it is necessary to rotate the setting knob 4, the setting knob 4 can be moved upward to facilitate the rotation of the setting knob 4.

[0047] Define the specific structure of the rotating part 4 and the base 3: as follows Figure 1-4As shown, the setting rotation 4, from top to bottom, includes a cylindrical and coaxially arranged knob part 4a, a blocking part 4b, a limiting part 4c, and a connecting part 4d. The diameter of the knob part 4a is smaller than the diameter of the blocking part 4b, the diameter of the limiting part 4c is smaller than the diameter of the blocking part 4b, and the diameter of the connecting part 4d is smaller than the diameter of the limiting part 4c. The serrated protrusion 10 is disposed on the limiting part 4c and located below the limiting part 4c. The connecting part 4d is a hollow structure with an opening at the lower end. The magnet 12 is disposed inside the connecting part 4d. A limiting protrusion ring 4e is provided on the outer periphery of the lower end of the connecting part 4d. A stepped hole 13 is provided in the middle of the base 3. The corresponding scale circles are evenly distributed on the outer periphery of the stepped hole 13. The stepped hole 13 includes a limiting hole 13a, a mounting hole 13b and a through hole 13c from top to bottom. The serrated groove 9 is provided on the end face of the limiting hole 13a. The shank of the screw 11 passes through the through hole 13c and is screwed to the fixing plate 1. The head of the screw 11 abuts against the end face of the mounting hole 13b. The side wall of the mounting hole 13b is recessed to form an annular groove 13d. The limiting protrusion 4e can slide axially in the annular groove 13d. The upper end of the annular groove 13d abuts against the limiting protrusion 4e for upper limit positioning and the lower end abuts against the limiting protrusion 4e for lower limit positioning.

[0048] The setting of the limiting protrusion 4e and the annular groove 13d can effectively prevent the setting knob 4 from moving upward and completely disengaging from the base 3.

[0049] To facilitate the insertion of the limiting protrusion 4e into the annular groove 13d during installation, a downward-facing notch is provided on the side wall of the connecting portion 4d. As the limiting protrusion 4e enters the annular groove 13d, the notch narrows; after the limiting protrusion 4e enters the annular groove 13d, the notch returns to its original position, ensuring that the limiting protrusion 4e does not disengage from the annular groove 13d.

[0050] The structure of the pressure knob assembly: as follows Figure 1 , 2 As shown in Figures 5 and 6, the pressure knob assembly includes a hollow fixed body 14 mounted on a fixed plate 1. A nut 15 is slidably mounted inside the fixed body 14, and a lead screw 16 is screwed to the middle of the nut 15. The lower end of the lead screw 16 passes through the fixed plate 1 and connects to the pressure assembly. A circumferential limiting structure is provided between the fixed plate 1 and the lead screw 16 to restrict the circumferential rotation of the lead screw 16. A pressure knob 17 that drives the nut 15 to rotate is rotatably connected to the upper end of the fixed body 14. A spring 18 with elasticity is provided between the pressure knob 17 and the nut 15 to make the nut 15 move downwards. The fixed body 14 is made of transparent material and has a pressure scale 19. The pressure scale 19 corresponding to the position of the nut 15 is the pressure of the pressure knob assembly on the vascular puncture site. Medical personnel can clearly see the nut 15 through the transparent material of the fixed body 14, and can accurately and quickly know the current pressure value of the pressure knob assembly. The structure is simple and easy to process and assemble.

[0051] Working principle of the pressure knob assembly: After the puncture catheter is inserted into the wrist, the fixation plate 1 and fixation strap 2 are fixed to the target area of ​​the wrist. When the catheter is withdrawn, the nut 15 moves downward under the elastic force of the spring 18, driving the lead screw 16 and the compression assembly downward. The compression assembly applies a gradient of increasing axial pressure to the vascular puncture site, achieving wound closure and blood flow occlusion. When it is necessary to increase the pressure applied by the compression assembly, rotating the pressure knob 17 drives the nut 15 to rotate. Because there is a circumferential limiting structure between the lead screw 16 and the fixation plate 1 to restrict the circumferential rotation of the lead screw 16, the lead screw 16 cannot rotate, and the lower end of the lead screw 16 is in contact with the wrist. Initially, due to the elastic force of the spring 18, the nut 15 does not move, and the lead screw 16 moves downward relative to the nut 15. The wrist exerts an upward pressure on the lead screw 16. Then the lead screw 16 and the nut 15 move upward until the downward elastic force of the spring 18 on the nut 15 is equal to the upward force of the wrist on the lead screw 16. The pressure increases when the nut 15 moves upward relative to the fixed body 14, compressing the spring 18. This increases the elastic force of the spring 18, which in turn increases the force pushing the nut 15 and the lead screw 16 downward, thus increasing the pressure of the pressure knob assembly on the vascular puncture site. When it is necessary to reduce the pressure applied by the pressure assembly, the pressure knob 17 is rotated in the opposite direction, causing the nut 15 to rotate in the opposite direction. The nut 15 moves downward relative to the fixed body 14, reducing the elastic force of the spring 18 and decreasing the force pushing the nut 15 and the lead screw 16 downward, thereby reducing the pressure of the pressure knob assembly on the vascular puncture site.

[0052] Furthermore, the fixing body 14 and the fixing plate 1 are integrally formed by injection molding.

[0053] The installation structure of the pressure knob 17: The upper end of the fixing body 14 is provided with a limiting flange 29. The lower end surface of the pressure knob 17 has a recessed mounting groove adapted to the limiting flange 29. A limiting plate 30 is welded to the lower part of the pressure knob 17, with the limiting flange 29 positioned between the inner end face of the mounting groove and the limiting plate 30. During installation, the pressure knob 17 is placed on the fixing body 14, the limiting plate 30 is placed below the limiting flange 29, and the pressure knob 17 and the limiting plate 30 are welded together to complete the installation of the pressure knob 17.

[0054] Structure of the compression component: such as Figure 1 , 2 As shown in Figure 4, the compression assembly includes a mounting plate 20 disposed at the lower end of the lead screw 16. An elastic band 21 is fitted over the mounting plate 20. A compression plate 22 is detachably connected to the elastic band 21 located below the mounting plate 20, thus separating disposable parts from reusable parts. That is, when used again, only the compression plate 22 needs to be replaced, effectively reducing costs.

[0055] The detachable connection structure between the pressure plate 22 and the elastic band 21: as follows Figure 1 ,2 As shown, the pressure plate 22 is detachably connected to the elastic band 21 via a buckle 23. The buckle 23 includes a limiting block 23a and a connecting post 23b connecting the limiting block 23a and the pressure plate 22. The elastic band 21 located below the mounting plate 20 is fitted onto the connecting post 23b and is limited between the limiting block 23a and the pressure plate 22.

[0056] Furthermore, the pressure plate 22 and the buckle 23 are integrally formed by injection molding.

[0057] Furthermore, the mounting plate 20 is C-shaped with the opening facing downwards.

[0058] Circumferential limiting structure for restricting the circumferential rotation of lead screw 16: such as Figure 1 , 2 As shown in Figures 5 and 6, the fixing plate 1 is provided with an anti-rotation hole 24 for the lead screw 16 to pass through. The circumferential limiting structure includes an anti-rotation plane 25 on the lead screw 16 and an anti-rotation plane 26 on the anti-rotation hole 24. The anti-rotation hole 24 restricts the circumferential rotation of the lead screw 16 through the anti-rotation plane 25 and the anti-rotation plane 26.

[0059] Furthermore, there are two anti-rotation planes 25 and two anti-rotation planes 26 arranged opposite to each other.

[0060] The structure of the pressure knob 17 driving the nut 15 to rotate: A fixed guide post 27 is provided vertically below the pressure knob 17, and the nut 15 is slidably fitted on the fixed guide post 27. The pressure knob 17 drives the nut 15 to rotate through the fixed guide post 27. The pressure knob 17 can drive the nut 15 to rotate, and the nut 15 can move axially relative to the pressure knob 17.

[0061] Preferably, there are two or more fixed guide posts 27 evenly distributed around the circumference of the lead screw 16. In this embodiment, there are three fixed guide posts 27 evenly distributed around the circumference of the lead screw 16.

[0062] Furthermore, the lead screw 16 and the fixed guide post 27 are both located inside the spring 18.

[0063] To make it easier to observe the location of nut 15, such as Figure 2 , 6 As shown, a red rubber washer 28 is provided between the spring 18 and the nut 15.

[0064] Preferably, the fixing plate 1, base 3, setting knob 4, fixing body 14, nut 15, lead screw 16, pressure knob 17, mounting plate 20, elastic band 21, compression plate 22, buckle 23, fixing guide post 27 and limiting plate 30 are all made of transparent material, so that the condition of the blood vessel puncture hole can be observed through this utility model and bleeding can be detected in time.

[0065] Preferably, the materials of the fixing plate 1, base 3, setting knob 4, fixing body 14, nut 15, lead screw 16, pressure knob 17, mounting plate 20, buckle 23, fixing guide post 27, and limiting plate 30 are transparent plastics, specifically PC (polycarbonate), PP (polypropylene), or PE (polyethylene). In this embodiment, the materials of the fixing plate 1, base 3, setting knob 4, fixing body 14, nut 15, lead screw 16, pressure knob 17, mounting plate 20, buckle 23, fixing guide post 27, and limiting plate 30 are PC (polycarbonate).

[0066] In the aforementioned novel arterial compression hemostat, the elastic band 21 and the compression plate 22 are made of transparent silicone. The flexible material of the elastic band 21 and the compression plate 22, with its soft contact, effectively alleviates the problem of compression point displacement caused by frequent patient movement, and effectively reduces bleeding due to compression point displacement.

[0067] Installation structure of fixing strap 2: The fixing plate 1 has through grooves 31 at both ends. One end of the fixing strap 2 passes through one of the through grooves 31 and is fixed to the fixing strap 2. The other end passes through the other through groove 31 and is attached to the fixing strap 2 by Velcro, which makes it easy to adjust the tightness of the fixing strap 2.

[0068] To achieve breathability and antibacterial properties of the fixing strap 2, the material of the fixing strap 2 is antibacterial nylon mesh fabric.

[0069] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A novel arterial compression hemostat, comprising a fixing plate (1) and a fixing strap (2), wherein the fixing plate (1) is provided with a pressure knob assembly, characterized in that: The fixed plate (1) is provided with an hour setting device and a minute setting device. The hour setting device and the minute setting device each include a base (3) and a setting knob (4) set on the base (3) and rotatable relative to the base (3). The upper surface of the base (3) of the hour setting device is evenly distributed with multiple hour scales (5). The setting knob (4) of the hour setting device covers the hour scales (5). The setting knob (4) of the hour setting device is provided with an hour display notch (6) for displaying one hour scale (5). The upper surface of the base (3) of the minute setting device is evenly distributed with multiple minute scales (7). The setting knob (4) of the minute setting device covers the minute scales (7). The setting knob (4) of the minute setting device is provided with a minute display notch (8) for displaying one minute scale (7).

2. The novel arterial compression hemostat according to claim 1, characterized in that: The base (3) is provided with serrated grooves (9), the number of serrated grooves (9) is the same as the number of corresponding scales, and the setting knob (4) is provided with serrated protrusions (10) that are adapted to the serrated grooves (9). The setting knob (4) is circumferentially positioned on the base (3) through the serrated grooves (9) and the serrated protrusions (10).

3. The novel arterial compression hemostat according to claim 2, characterized in that: The base (3) is provided with screws (11) and is fixedly mounted on the fixing plate (1) by screws (11). The setting knob (4) is provided with magnets (12). The setting knob (4) is mounted on the base (3) by attracting the magnetic force of the screws (11) through the magnets (12).

4. The novel arterial compression hemostat according to claim 3, characterized in that: The setting knob (4) comprises, from top to bottom, a cylindrical knob part (4a), a blocking part (4b), a limiting part (4c), and a connecting part (4d) arranged coaxially. The diameter of the knob part (4a) is smaller than the diameter of the blocking part (4b), the diameter of the limiting part (4c) is smaller than the diameter of the blocking part (4b), and the diameter of the connecting part (4d) is smaller than the diameter of the limiting part (4c). The serrated protrusion (10) is disposed on the limiting part (4c) and located below the limiting part (4c). The connecting part (4d) is a hollow structure with an opening at the lower end. The magnet (12) is disposed inside the connecting part (4d). A limiting protrusion ring (4e) is provided on the outer periphery of the lower end of the connecting part (4d). A stepped hole (13) is provided in the middle of the base (3). The corresponding scale circles are evenly distributed on the outer periphery of the stepped hole (13). The stepped hole (13) includes a limiting hole (13a), a mounting hole (13b) and a through hole (13c) from top to bottom. The serrated groove (9) is set on the end face of the limiting hole (13a). The shank of the screw (11) passes through the through hole (13c) and is screwed to the fixing plate (1). The head of the screw (11) abuts against the end face of the mounting hole (13b). The side wall of the mounting hole (13b) is recessed to form an annular groove (13d). The limiting protrusion (4e) can slide axially in the annular groove (13d). The upper end of the annular groove (13d) abuts against the limiting protrusion (4e) for upper limit positioning, and the lower end of the annular groove (13d) abuts against the limiting protrusion (4e) for lower limit positioning.

5. The novel arterial compression hemostat according to claim 1, characterized in that: The pressure knob assembly includes a hollow fixed body (14) mounted on a fixed plate (1). A nut (15) is slidably mounted inside the fixed body (14). A lead screw (16) is screwed into the middle of the nut (15). The lower end of the lead screw (16) passes through the fixed plate (1) and connects to the pressure assembly. A circumferential limiting structure is provided between the fixed plate (1) and the lead screw (16) to restrict the circumferential rotation of the lead screw (16). A pressure knob (17) that drives the nut (15) to rotate is rotatably connected to the upper end of the fixed body (14). A spring (18) with elastic force is provided between the pressure knob (17) and the nut (15) to make the nut (15) move downward. The fixed body (14) is made of transparent material and has pressure scale (19) on it.

6. A novel arterial compression hemostat according to claim 5, characterized in that: The compression assembly includes a mounting plate (20) disposed at the lower end of the lead screw (16), an elastic band (21) is fitted over the mounting plate (20), and a compression plate (22) is detachably connected to the elastic band (21) located below the mounting plate (20).

7. A novel arterial compression hemostat according to claim 6, characterized in that: The pressure plate (22) is detachably connected to the elastic band (21) via a buckle (23). The buckle (23) includes a limiting block (23a) and a connecting post (23b) connecting the limiting block (23a) and the pressure plate (22). The elastic band (21) located below the mounting plate (20) is fitted on the connecting post (23b) and is limited between the limiting block (23a) and the pressure plate (22).

8. A novel arterial compression hemostat according to claim 5, characterized in that: The fixed plate (1) is provided with an anti-rotation hole (24) through which the lead screw (16) passes. The circumferential limiting structure includes an anti-rotation plane one (25) on the lead screw (16) and an anti-rotation plane two (26) on the anti-rotation hole (24). The anti-rotation hole (24) restricts the circumferential rotation of the lead screw (16) through the anti-rotation plane one (25) and the anti-rotation plane two (26).

9. A novel arterial compression hemostat according to claim 5, characterized in that: The pressure knob (17) is provided with a fixed guide post (27) along the vertical direction below it. The nut (15) is slidably fitted on the fixed guide post (27). The pressure knob (17) drives the nut (15) to rotate through the fixed guide post (27).

10. A novel arterial compression hemostat according to claim 5, characterized in that: A red rubber washer (28) is provided between the spring (18) and the nut (15).

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