Electronic radial artery compression hemostat

Abstract

The invention relates to the field of compression hemostasis tools, in particular to an electronic radial artery compression hemostat. Comprising a base, a sleeve is elastically and slidably connected to the middle of the lower end of the base in the vertical direction, a pressure sensor is fixed in the sleeve, a pressing block is slidably arranged in the sleeve below the pressure sensor in the vertical direction, guide assemblies are arranged at the left end and the right end of the base, and speed reduction assemblies are elastically and slidably arranged in the base above the guide assemblies; a driving assembly is arranged in the base, the two connecting plates are both connected with the driving assembly, the two speed reduction assemblies are connected with the transmission assembly, a guide rod is fixed to the outer side of the sleeve and matched with a guide assembly in the base, and a power transmission assembly is arranged in the base. The motor fixing belt and the base are started to hoop the hand of the patient, then the hemostatic pad pasted to the lower end of the pressing block is used for applying pressure to the bleeding position for hemostasis, and the hand of the patient can be automatically tightened.

Description

Technical Field

[0001] The invention relates to the field of compression hemostasis tools, in particular to an electronic radial artery compression hemostasis device. Background Art

[0002] Arterial puncture generally refers to the operation of directly puncturing an artery with a puncture needle. Arterial puncture is commonly used in arterial blood gas analysis, or to extract blood from the artery after arterial puncture, or to inject drug liquid into the artery, place a catheter guidewire, etc.

[0003] After arterial puncture surgery, a compression hemostat is generally used for temporary hemostasis. The radial artery is one of the most important arteries in the upper limb of the human body. It originates from the inner side of the elbow, extends along the forearm and wrist, and is responsible for supplying blood to the arm and hand. If bleeding occurs in the radial artery, measures must be taken quickly to stop the bleeding. A compression hemostat can be used to directly compress the bleeding area and apply pressure for at least 5 minutes to promote coagulation. However, the existing radial artery compression hemostat with manually adjustable pressure cannot achieve accurate on-demand decompression when the pressure needs to be adjusted, causing pain and swelling in the patient's limbs, and increasing the risks of complications such as local device-related pressure injuries and arterial occlusion. When binding the patient's wrist, some compression hemostat needs to press the two locking protrusions of the pressure plate into the two locking grooves of the force plate. The operation is relatively cumbersome. In the case of bleeding in the radial artery, it is necessary to stop the bleeding quickly, otherwise it will increase the patient's bleeding and affect the patient's health and safety. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an electronic radial artery compression hemostat which can automatically compress the bleeding position of the patient, can intuitively display the pressure value applied to the bleeding position, and can reduce the difference between the actual pressure on the bleeding position and the set pressure.

[0005] In order to achieve the above object, the technical solution provided by the present invention is:

[0006] An electronic radial artery compression hemostat comprises a base, the interior of the base is hollow, a sleeve is elastically slidably connected in the vertical direction of the middle of the lower end of the base, a pressure sensor is fixed in the sleeve, a pressure block is slidably arranged in the vertical direction in the sleeve below the pressure sensor, the lower end of the pressure block protrudes below the sleeve, the upper end of the pressure block is tightly against the force-bearing surface of the lower end of the pressure sensor, a display screen is fixed at the upper end of the base, and the display screen, power supply and pressure sensor are electrically connected; guide components are arranged at both ends of the left and right sides of the base, a deceleration component is elastically slidably arranged in the base above the guide component, the two ends of the fixed belt respectively bypass the guide components on the left and right sides and the deceleration components on the left and right sides to enter the base, the ends of the fixed belt in the base are fixed with connecting plates, the connecting plates are slidably arranged in the base, a driving component is arranged in the base, the two connecting plates are connected to the driving component, and the driving component can drive the two connecting plates to move closer to or away from each other, When the two connecting plates approach each other, the length of the fixed belt part on the outer side of the base decreases, and the two reduction assemblies are connected to the transmission assembly, which can make the two reduction assemblies approach or move away from each other. A guide rod is fixed on the outer side of the sleeve, and the guide rod cooperates with the guide assembly in the base. A power transmission assembly is arranged in the base. When the sleeve moves to the upper dead center, the guide rod connects the connecting plate on one side with the transmission assembly through the power transmission assembly through the guide assembly. After the connecting plate on one side is connected with the transmission assembly through the power transmission assembly, the movement speed of the reduction assembly is less than the movement speed of the connecting plate. A plurality of magnet blocks are fixed on the outer side of the sleeve, and a stepped groove corresponding to the magnet block is opened on the base, and the lower side and upper side of the stepped groove are respectively a large groove and a small groove, and the magnet block is slidably arranged in the large groove of the stepped groove, and an electromagnet is fixed in the small groove of the stepped groove, and the electromagnet is electrically connected to the controller, and the lower end of the electromagnet has the same magnetic pole as the upper end of the magnet block.

[0007] Specifically, a second spring is arranged in the stepped groove, the upper end of the second spring is fixedly connected to the electromagnet, and the lower end of the second spring is fixedly connected to the upper end of the magnet block.

[0008] Specifically, the guiding assembly includes two first rollers arranged up and down, and a second roller is rotatably connected in a base between the two first rollers arranged up and down and the sleeve, and the first roller is parallel to the second roller; the deceleration assembly includes a third roller, and the third roller is parallel to the second roller, the third roller is close to the first roller on one side of it, and the height of the third roller is greater than the height of the second roller on one side of it, and a slider is rotatably connected on the rotating shaft of the third roller, and the slider is elastically slidably arranged in a slide groove on the inner wall of the base, and the sliding direction of the third roller is parallel to the movement direction of the connecting plate, and the end of the fixed belt passes through the gap between the two first rollers and then bypasses the second roller and the third roller in turn.

[0009] Specifically, a long groove is provided at the lower end of the top plate of the base, and the connecting plate is slidably arranged in the long groove.

[0010] Specifically, the driving assembly includes an upper bidirectional screw rotatably arranged in a long groove, the axial direction of the upper bidirectional screw is parallel to the length direction of the long groove, a motor is fixed in the base, the power supply, motor, controller and power button are electrically connected, the output shaft of the motor is concentrically fixedly connected to the upper bidirectional screw, and the connecting plates on both sides are respectively threadedly connected to the threaded parts on both sides of the upper bidirectional screw, and when the upper bidirectional screw rotates, it can drive the two connecting plates to move.

[0011] The two guide wheels are connected with each other with a toothed wheel, and the two guide wheels are connected with a toothed wheel on the left and right sides of the wheelchair, and the two guide wheels are connected with a toothed wheel on the right and left sides of the wheelchair.

[0012] Specifically, the guide assembly includes a wedge block, the wedge block is located on the right side of the first rotary disk, the wedge block is located above the guide rod, the inclined surface of the wedge block is in sliding contact with the guide rod, a slide plate is fixed on the wedge block, the slide plate is slidably arranged in a guide groove on the inner wall of the base, the sliding direction of the slide plate is parallel to the axial direction of the short screw rod, and when the guide rod moves upward, the wedge block can pass through the inclined surface of the wedge block to make the wedge block close to the first rotary disk, and a rotating plate is rotatably connected to the wedge block, the rotating plate is concentric with the first rotary disk, and a square rod is concentrically fixed on the rotating plate; the power transmission assembly includes a second rotary disk concentric with the first rotary disk, the second rotary disk is located on the right side of the first rotary disk, a gap is set between the second rotary disk and the first rotary disk, and the second rotary disk is concentrically fixed on one side of the square rod facing the first rotary disk The gear train is a series of gears that are connected to the gear of the control wheel, and the gear train is a series of gears that are connected to the gear of the control wheel. The gear train is a series of gears that are connected to the gear of the control wheel. The gear train is a series of gears that are connected to the gear of the control wheel. The gear train is a series of gears that are connected to the gear of the control wheel. The gear train is a series of gears that are connected to the gear of the control wheel. The gear train is a series of gears that are connected to the gear of the control wheel.

[0013] Specifically, a plurality of switches are arranged on the upper end of the base, and the switches, controller, power supply and electromagnet are electrically connected, and the magnitude of the current flowing through the electromagnet is changed by pressing different switches.

[0014] Specifically, a buzzer is fixed on the upper end of the base, and the buzzer is electrically connected to the timing module of the controller.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. After starting the motor, the two connecting plates are relatively close to each other, and the length of the fixing belt part on the outside of the base is reduced, so that the fixing belt and the base tighten the patient's hand, and then the hemostatic pad attached to the lower end of the pressure block is used to apply pressure to the bleeding position to stop bleeding, so that the patient's hand can be automatically tightened.

[0017] 2. When the fixing belt is tightened and the base squeezes the patient's hand, the pressure block, pressure sensor and sleeve move upward, and the second spring is compressed. When the magnet block contacts the top of the large groove of the step groove, the sleeve moves to the upper dead center. When the sleeve moves upward, the connecting plate on one side is connected to the transmission assembly through the cooperation of the guide rod and the guide assembly through the power transmission assembly. After the connecting plate on one side is connected to the transmission assembly through the power transmission assembly, the transmission assembly causes the deceleration assembly to move toward the middle direction of the base, and the movement speed of the deceleration assembly is less than the movement speed of the connecting plate. When the connecting plate and the deceleration assembly move in the middle direction of the base, the pressure applied by the pressure block to the bleeding position of the patient's hand through the hemostatic pad slows down. At the same time, the pressure applied to the pressure sensor is displayed in real time on the display screen, and the pressure displayed on the display screen is the pressure of the hemostatic pad on the bleeding position of the patient's hand. After the pressure applied by the hemostatic pad to the bleeding position of the patient's hand slows down, it is convenient to control the pressure applied by the hemostatic pad to the bleeding position of the patient's hand.

[0018] 3. You can choose the appropriate hemostasis pressure according to the patient's condition. By turning on different switches, the current flowing through the electromagnet is different, thereby adjusting the repulsive force of the electromagnet on the magnet block, and then controlling the pressure on the bleeding position of the patient when the sleeve reaches the upper stop point. Regardless of whether the patient needs a larger pressure to stop bleeding or a smaller pressure to stop bleeding, the deceleration component will only work when the sleeve moves to the upper stop point. Therefore, when different pressure requirements are met in different situations, during the hemostasis process, the deceleration component will only start to move when it is close to the set pressure value and slow down the pressure increase, which can increase the hemostasis speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the device.

[0020] Figure 2 Schematic diagram of the briquette.

[0021] Figure 3 A cross-sectional view of the base.

[0022] Figure 4 Schematic diagram of the rack and ring gear matching.

[0023] Figure 5 This is a diagram showing the position relationship between the guide rod and the guide assembly.

[0024] Figure 6 Schematic diagram of the meshing of the first bevel gear and the second bevel gear.

[0025] Figure 7 It is a schematic diagram of the cooperation between the slide plate and the guide groove.

[0026] The names of the parts in the attached drawings are: 1. base; 2. fixed belt; 3. first roller; 4. second roller; 5. third roller; 6. connecting plate; 7. long groove; 8. motor; 9. upper bidirectional screw; 10. slider; 11. slide groove; 12. short screw; 13. fixed plate; 14. first turntable; 15. lower bidirectional screw; 16. pulley; 17. belt; 18. rack; 19. gear ring; 20. first bevel gear; 21. second bevel gear; 22. fixed ring; 23. square rod; 24. second turntable; 25. turntable; 26. first spring; 27. wedge block; 28. slide plate; 29. ​​guide groove; 30. sleeve; 31. magnet block; 32. switch; 33. step groove; 34. electromagnet; 35. second spring; 36. pressure block; 37. pressure sensor; 38. guide rod; 39. display screen; 40. buzzer. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0028] Embodiment 1: Figure 1-Figure 7 As shown, an electronic radial artery compression hemostat includes a base 1, the interior of the base 1 is hollow, a sleeve 30 is elastically slidably connected in the vertical direction in the middle of the lower end of the base 1, a pressure sensor 37 is fixed in the sleeve 30, a pressure block 36 is slidably arranged in the vertical direction in the sleeve 30 below the pressure sensor 37, the lower end of the pressure block 36 protrudes to the bottom of the sleeve 30, the upper end of the pressure block 36 is tightly against the force-bearing surface of the lower end of the pressure sensor 37, a display screen 39 is fixed on the upper end of the base 1, and the display screen 39, the power supply and the pressure sensor 37 are electrically connected.

[0029] A buzzer 40 is fixed on the upper end of the base 1 , and the buzzer 40 is electrically connected to the timing module of the controller.

[0030] The left and right ends of the base 1 are provided with guide components. The base 1 above the guide components is elastically and slidably provided with deceleration components. The two ends of the fixed belt 2 bypass the guide components on the left and right sides and the deceleration components on the left and right sides and enter the base 1. The ends of the fixed belt 2 in the base 1 are fixed with connecting plates 6, which are slidably arranged in the base 1. Specifically, a long groove 7 is opened at the lower end of the top plate of the base 1, and the connecting plate 6 is slidably arranged in the long groove 7.

[0031] The guide assembly includes two first rollers 3 arranged up and down, and a second roller 4 is rotatably connected in the base 1 between the two first rollers 3 and the sleeve 30, and the first roller 3 is parallel to the second roller 4.

[0032] The deceleration assembly includes a third roller 5, which is parallel to the second roller 4 and close to the first roller 3 on one side thereof. The height of the third roller 5 is greater than the height of the second roller 4 on one side thereof. A slider 10 is rotatably connected to the rotating shaft of the third roller 5. The slider 10 is elastically slidably arranged in a slide groove 11 on the inner wall of the base 1. The sliding direction of the third roller 5 is parallel to the moving direction of the connecting plate 6. The end of the fixing belt 2 passes through the gap between the two first rollers 3 and then bypasses the second roller 4 and the third roller 5 in turn.

[0033] A driving assembly is provided in the base 1, and both connecting plates 6 are connected to the driving assembly. The driving assembly can drive the two connecting plates 6 to move closer to or away from each other. When the two connecting plates 6 move closer to each other, the length of the fixing belt 2 on the outer side of the base 1 is reduced.

[0034] The driving assembly includes an upper bidirectional screw 9 rotatably arranged in the long slot 7, the axial direction of the upper bidirectional screw 9 is parallel to the length direction of the long slot 7, a motor 8 is fixed in the base 1, the power supply, the motor 8, the controller and the power button are electrically connected, the output shaft of the motor 8 is concentrically fixedly connected with the upper bidirectional screw 9, and the connecting plates 6 on both sides are respectively threadedly connected with the threaded parts on both sides of the upper bidirectional screw 9. When the upper bidirectional screw 9 rotates, it can drive the two connecting plates 6 to move.

[0035] The two reduction assemblies are connected to the transmission assembly, and the transmission assembly can make the two reduction assemblies approach or move away from each other. A guide rod 38 is fixed to the outside of the sleeve 30, and the guide rod 38 cooperates with the guide assembly in the base 1. A power transmission assembly is arranged in the base 1. When the sleeve 30 moves to the top dead point, the guide rod 38 passes through the guide assembly so that the connecting plate 6 on one side is connected to the transmission assembly through the power transmission assembly.

[0036] After the connecting plate 6 on one side is connected to the transmission assembly through the power transmission assembly, the movement speed of the reduction assembly is lower than the movement speed of the connecting plate 6 .

[0037] like Figure 4As shown, the transmission assembly includes a lower bidirectional screw 15 rotatably arranged in the base 1, and the left and right sliders 10 on the rear side of the base 1 are respectively threadedly connected to the threaded parts on the left and right sides of the lower bidirectional screw 15. When the lower bidirectional screw 15 rotates, the two sliders 10 connected thereto can move.

[0038] The left and right ends of the lower bidirectional screw 15 are both concentrically fixed with pulleys 16, and the left and right sliders 10 on the front side of the base 1 are both threadedly connected with short screws 12, and the sliders 10 threadedly connected thereto can move when the short screws 12 rotate. The short screws 12 are parallel to the lower bidirectional screws 15, and a fixing plate 13 is rotatably connected to the short screws 12, and the fixing plate 13 is fixed in the base 1. The left end of the short screw 12 on the left and the right end of the short screw 12 on the right are both concentrically fixed with pulleys 16. The front and rear pulleys 16 on the left side of the base 1 are connected by a belt 17, and the front and rear pulleys 16 on the right side of the base 1 are connected by a belt 17. A first turntable 14 is concentrically fixed to the end of one of the short screws 12 facing the middle position of the base 1, and a plurality of slots are provided on one end of the first turntable 14 facing the middle position of the base 1.

[0039] like Figure 5 and Figure 6 As shown, the guide assembly includes a wedge 27, which is located on the right side of the first rotating disk 14, and the wedge 27 is located above the guide rod 38. The inclined surface of the wedge 27 is in sliding contact with the guide rod 38. A slide plate 28 is fixed on the wedge 27, and the slide plate 28 is slidably arranged in the guide groove 29 on the inner wall of the base 1. The sliding direction of the slide plate 28 is parallel to the axial direction of the short screw 12. When the guide rod 38 moves upward, it can pass through the inclined surface of the wedge 27 to make the wedge 27 close to the first rotating disk 14. A rotating plate 25 is rotatably connected to the wedge 27, and the rotating plate 25 is concentric with the first rotating disk 14. A square rod 23 is concentrically fixed to the rotating plate 25.

[0040] The power transmission assembly includes a second turntable 24 concentric with the first turntable 14, the second turntable 24 is located on the right side of the first turntable 14, a gap is set between the second turntable 24 and the first turntable 14, the second turntable 24 is concentrically fixed on the end of the square rod 23 facing the first turntable 14, and a plurality of protrusions are fixed on the end of the second turntable 24 facing the first turntable 14.

[0041] After the opposite end surfaces of the first rotating disk 14 and the second rotating disk 24 contact each other, the protrusion can be inserted into the slot and transmit torque.

[0042] The square rod 23 is slidably sleeved with a second bevel gear 21, and the second bevel gear 21 rotates with the square rod 23. A fixing ring 22 is rotatably sleeved on the second bevel gear 21, and the fixing ring 22 is fixedly connected to the base 1. A first spring 26 is sleeved on the square rod 23 between the rotating plate 25 and the second bevel gear 21, and the lower end of the top plate of the base 1 is rotatably connected with the first bevel gear 20, and the first bevel gear 20 is meshed with the second bevel gear 21. A gear ring 19 is fixedly sleeved on the outer side of the first bevel gear 20, and a rack 18 is fixed on any connecting plate 6, and the length direction of the rack 18 is parallel to the movement direction of the connecting plate 6, and the rack 18 is meshed with the gear ring 19.

[0043] like Figure 3 As shown, a plurality of magnet blocks 31 are fixed on the outside of the sleeve 30, and a stepped groove 33 corresponding to the magnet block 31 is opened on the base 1, and the lower side and the upper side of the stepped groove 33 are a large groove and a small groove respectively. The magnet block 31 is slidably arranged in the large groove of the stepped groove 33, and an electromagnet 34 is fixed in the small groove of the stepped groove 33. The electromagnet 34 is electrically connected to the controller, and the lower end of the electromagnet 34 has the same magnetic pole as the upper end of the magnet block 31.

[0044] A second spring 35 is disposed in the stepped groove 33 . The upper end of the second spring 35 is fixedly connected to the electromagnet 34 , and the lower end of the second spring 35 is fixedly connected to the upper end of the magnet block 31 .

[0045] When in use, the hemostatic pad is adhered and fixed to the pressing block 36, and the patient's hand passes through the space between the base 1 and the fixing belt 2 outside the base 1, and the hemostatic pad is aligned with the position where the patient needs to stop bleeding.

[0046] like Figure 3 As shown, the motor 8 is started, and the motor 8 drives the upper bidirectional screw 9 to rotate, so that the connecting plates 6 on the left and right sides approach each other, the length of the fixing belt 2 on the outside of the base 1 is reduced, the base 1 and the fixing belt 2 tighten the patient's hand, and the hemostatic pad squeezes the position where the patient needs to stop bleeding.

[0047] When the tourniquet squeezes the position where the patient needs to stop bleeding, the pressure block 36 squeezes the pressure sensor 37. The pressure applied by the hemostatic pad to the position where the patient needs to stop bleeding is the pressure of the pressure block 36 on the pressure sensor 37. The pressure exerted on the pressure sensor 37 is displayed in real time on the display screen 39.

[0048] like Figure 3 and Figure 4 As shown, when the base 1 is close to the patient's hand, the pressing block 36, the pressure sensor 37, the sleeve 30, the magnet block 31 and the guide rod 38 move upward, and the second spring 35 is compressed. At the same time, the sleeve 30 not only needs to overcome the elastic force of the second spring 35, but also needs to overcome the repulsive force of the electromagnet 34 on the magnet block 31 during the upward movement.

[0049] like Figure 5As shown, when the connecting plate 6 moves, the rack 18 causes the first bevel gear 20 to rotate through the gear ring 19, and the first bevel gear 20 drives the second bevel gear 21 to rotate, and the second rotating disk 24, the square rod 23 and the rotating plate 25 rotate. During the upward movement of the guide rod 38, under the guiding action of the inclined surface of the wedge block 27, the wedge block 27, the slide plate 28, the rotating plate 25, the square rod 23 and the second rotating disk 24 move toward the direction of the first rotating disk 14. The second rotating disk 24 keeps rotating when moving toward the direction of the first rotating disk 14. When the protrusion of the second rotating disk 24 is inserted into the slot of the first rotating disk 14, the first rotating disk 14 and the second rotating disk 24 transmit torque, and the short screw 12 connected to the first rotating disk 14 starts to rotate. When the short screw 12 connected to the first rotating disk 14 rotates, under the cooperation of the belt 17 and the pulley 16, the lower bidirectional screw 15 and the short screw 12 on the right side of the base 1 rotate. When the lower bidirectional screw 15 and the short screw 12 rotate, the slider 10 drives the third roller 5 to move toward the middle direction of the base 1. Since the speed of the third roller 5 moving toward the center direction of the base 1 is less than the speed of the connecting plate 6 moving toward the center direction of the base 1 Therefore, the subsequent movement speed of the fixing belt 2 outside the base 1 into the base 1 is reduced, that is, the pressure applied by the pressure block 36 to the bleeding position of the patient's hand through the hemostatic pad is slowed down. At this time, the medical staff observes the pressure value displayed on the display screen 39, and the display screen 39 displays the pressure of the hemostatic pad on the bleeding position of the patient in real time. After the pressure applied by the hemostatic pad to the bleeding position of the patient's hand is slowed down, it is convenient to control the pressure applied by the hemostatic pad to the bleeding position of the patient. When the displayed value on the display screen 39 reaches the set pressure value, the motor 8 can be turned off.

[0050] After the motor 8 is turned off, the timing module of the controller is started, and the buzzer 40 works after the set time to remind the medical staff to remove the electronic radial artery compression hemostat.

[0051] Embodiment 2: Based on Embodiment 1, refer to Figure 1 and Figure 3 As described, a plurality of switches 32 are disposed on the upper end of the base 1 , and the switches 32 , the controller, the power supply and the electromagnet 34 are electrically connected, and the magnitude of the current flowing through the electromagnet 34 is changed by pressing different switches 32 .

[0052] The appropriate hemostasis pressure can be selected according to the patient's condition. By turning on different switches 32, the current flowing through the electromagnet 34 is different, thereby adjusting the repulsive force of the electromagnet 34 on the magnet block 31, and then controlling the pressure on the bleeding position of the patient when the sleeve 30 reaches the upper stop point. Regardless of whether the patient needs a larger pressure to stop bleeding or a smaller pressure to stop bleeding, since the deceleration component will only work when the sleeve 30 moves to the upper stop point, therefore, when different pressure requirements are met in different situations, during the hemostasis process, the deceleration component will only start to move when it is close to the set pressure value and slow down the pressure increase, which can increase the hemostasis speed.

[0053] In this embodiment, there are two switches 32, and the pressure values ​​corresponding to the two switches 32 are 25 kPa and 35 kPa respectively.

[0054] If the bleeding position of the patient needs to be stopped by a pressure of 25 kPa, the switch 32 corresponding to 25 kPa is pressed, and then the controller adjusts the current flowing through the electromagnet 34, thereby changing the repulsion of the electromagnet 34 on the magnet block 31. At this time, the upward movement of the magnet block 31 must overcome both the elastic force of the second spring 35 and the repulsion of the electromagnet 34 on the magnet block 31. When the sleeve 30 moves to the top dead center, that is, when the magnet block 31 contacts the top of the large groove of the stepped groove 33, the force that the sleeve 30 needs to overcome to move to the top dead center is just 23 kPa. At this time, the deceleration component moves, and the subsequent pressure growth rate of the hemostatic pad on the bleeding position of the patient slows down. The time required for the hemostatic pad to increase the remaining 2 kPa of pressure on the bleeding position of the patient increases, which is convenient for medical staff to control the pressure applied by the hemostatic pad to the bleeding position of the patient's hand.

[0055] If the bleeding position of the patient needs to be stopped by a pressure of 35 kPa, the switch 32 corresponding to 35 kPa is pressed, and then the controller adjusts the current flowing through the electromagnet 34, thereby changing the repulsion of the electromagnet 34 on the magnet block 31. At this time, the upward movement of the magnet block 31 must overcome both the elastic force of the second spring 35 and the repulsion of the electromagnet 34 on the magnet block 31. When the sleeve 30 moves to the top dead center, that is, when the magnet block 31 contacts the top of the large groove of the stepped groove 33, the force that the sleeve 30 needs to overcome to move to the top dead center is just 33 kPa. At this time, the deceleration component moves, and the subsequent pressure growth rate of the hemostatic pad on the bleeding position of the patient slows down. The time required for the hemostatic pad to increase the remaining 2 kPa of pressure on the bleeding position of the patient increases, which is convenient for medical staff to control the pressure applied by the hemostatic pad to the bleeding position of the patient's hand.

[0056] In this embodiment, after any switch 32 is turned on, during the hemostasis process, the deceleration component will not be activated until the pressure of the hemostatic pad on the position where the patient needs to stop bleeding differs from the set pressure by 2 kPa.

[0057] When the required pressure changes, the switch 32 corresponding to the required pressure is activated to adjust the force required for the sleeve 30 to move to the top dead point, ensuring that the deceleration components start moving only when approaching the set pressure value and slowing down the pressure increase, thereby ensuring the pressure increase rate at the patient's required hemostasis position in the early stage of the hemostasis process, thereby increasing the hemostasis speed during use.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic radial artery compression hemostat, comprising a base (1), the base (1) being hollow inside, characterized in that: A sleeve (30) is elastically slidably connected in the vertical direction of the middle part of the lower end of the base (1), a pressure sensor (37) is fixed in the sleeve (30), a pressure block (36) is slidably arranged in the vertical direction in the sleeve (30) below the pressure sensor (37), the lower end of the pressure block (36) protrudes below the sleeve (30), the upper end of the pressure block (36) is tightly against the force-bearing surface of the lower end of the pressure sensor (37), a display screen (39) is fixed at the upper end of the base (1), and the display screen (39), the power supply and the pressure sensor (37) are electrically connected; both left and right ends of the base (1) are A guide assembly is provided, and a deceleration assembly is elastically slidably provided in the base (1) above the guide assembly. The two ends of the fixed belt (2) respectively bypass the guide assemblies on the left and right sides and the deceleration assemblies on the left and right sides and enter the base (1). The ends of the fixed belt (2) in the base (1) are fixed with connecting plates (6), and the connecting plates (6) are slidably provided in the base (1). A driving assembly is provided in the base (1), and the two connecting plates (6) are connected to the driving assembly. The driving assembly can drive the two connecting plates (6) to move closer to or farther from each other. When the two connecting plates (6) move closer to each other, During the movement, the length of the fixed belt (2) on the outside of the base (1) is reduced, the two reduction assemblies are connected to the transmission assembly, and the transmission assembly can make the two reduction assemblies approach or move away from each other. A guide rod (38) is fixed on the outside of the sleeve (30), and the guide rod (38) cooperates with the guide assembly in the base (1). A power transmission assembly is arranged in the base (1). When the sleeve (30) moves to the top dead center, the guide rod (38) connects the connecting plate (6) on one side to the transmission assembly through the power transmission assembly, and the connecting plate (6) on one side is connected to the transmission assembly through the power transmission assembly. After the components are connected, the movement speed of the deceleration assembly is less than the movement speed of the connecting plate (6); a plurality of magnet blocks (31) are fixed on the outer side of the sleeve (30); a stepped groove (33) corresponding to the magnet block (31) is opened on the base (1); the lower side and the upper side of the stepped groove (33) are respectively a large groove and a small groove; the magnet block (31) is slidably arranged in the large groove of the stepped groove (33); an electromagnet (34) is fixed in the small groove of the stepped groove (33); the electromagnet (34) is electrically connected to the controller; the lower end of the electromagnet (34) has the same magnetic pole as the upper end of the magnet block (31).

2. The electronic radial artery compression hemostat according to claim 1, characterized in that: A second spring (35) is arranged in the stepped groove (33), the upper end of the second spring (35) is fixedly connected to the electromagnet (34), and the lower end of the second spring (35) is fixedly connected to the upper end of the magnet block (31).

3. The electronic radial artery compression hemostat according to claim 1, characterized in that: The guide assembly comprises two first rollers (3) arranged up and down, and a second roller (4) is rotatably connected in the base (1) between the two first rollers (3) and the sleeve (30), and the first roller (3) is parallel to the second roller (4); the deceleration assembly comprises a third roller (5), and the third roller (5) is parallel to the second roller (4), and the third roller (5) is close to the first roller (3) on one side thereof, and the height of the third roller (5) is greater than the height of the second roller (4) on one side thereof, and a slider (10) is rotatably connected on the rotating shaft of the third roller (5), and the slider (10) is elastically slidably arranged in a slide groove (11) on the inner wall of the base (1), and the sliding direction of the third roller (5) is parallel to the moving direction of the connecting plate (6), and the end of the fixing belt (2) passes through the gap between the two first rollers (3) and then bypasses the second roller (4) and the third roller (5) in sequence.

4. The electronic radial artery compression hemostat according to claim 1, characterized in that: A long groove (7) is provided at the lower end of the top plate of the base (1), and the connecting plate (6) is slidably arranged in the long groove (7).

5. The electronic radial artery compression hemostat according to claim 1, characterized in that: The driving assembly comprises an upper bidirectional screw (9) rotatably arranged in the long slot (7), the axial direction of the upper bidirectional screw (9) is parallel to the length direction of the long slot (7), a motor (8) is fixed in the base (1), the power supply, the motor (8), the controller and the power button are electrically connected, the output shaft of the motor (8) is concentrically fixedly connected to the upper bidirectional screw (9), the connecting plates (6) on both sides are respectively threadedly connected to the threaded parts on both sides of the upper bidirectional screw (9), and the upper bidirectional screw (9) can drive the two connecting plates (6) to move when rotating.

6. The electronic radial artery compression hemostat according to claim 1, characterized in that: The transmission assembly comprises a lower bidirectional screw (15) rotatably arranged in the base (1); two left and right sliders (10) on the rear side of the base (1) are respectively threadedly connected to the threaded parts on the left and right sides of the lower bidirectional screw (15); when the lower bidirectional screw (15) rotates, the two sliders (10) connected thereto can move; pulleys (16) are concentrically fixed to the left and right ends of the lower bidirectional screw (15); short screws (12) are threadedly connected to the left and right sliders (10) on the front side of the base (1); when the short screw (12) rotates, the sliders (10) threadedly connected thereto can move; the short screw (12) is parallel to the lower bidirectional screw (15). The short screw rod (12) is rotatably connected with a fixing plate (13), the fixing plate (13) is fixed in the base (1), the left end of the short screw rod (12) on the left side and the right end of the short screw rod (12) on the right side are both concentrically fixed with a pulley (16), the front and rear pulleys (16) on the left side of the base (1) are connected by a belt (17), and the front and rear pulleys (16) on the right side of the base (1) are connected by a belt (17), and the first rotating disk (14) is concentrically fixed to the end of one of the short screw rods (12) facing the middle position of the base (1), and a plurality of slots are provided on one end of the first rotating disk (14) facing the middle position of the base (1).

7. The electronic radial artery compression hemostat according to claim 6, characterized in that: The guide assembly comprises a wedge block (27), the wedge block (27) being located on the right side of the first rotating disk (14), the wedge block (27) being located above the guide rod (38), the inclined surface of the wedge block (27) being in sliding contact with the guide rod (38), a slide plate (28) being fixed on the wedge block (27), the slide plate (28) being slidably arranged in a guide groove (29) on the inner wall of the base (1), the sliding direction of the slide plate (28) being parallel to the axial direction of the short screw rod (12), and the guide rod (38) being able to pass through the inclined surface of the wedge block (27) when it moves upward so as to make the wedge block (27) The wedge block (27) is close to the first rotating disk (14), a rotating plate (25) is rotatably connected to the wedge block (27), the rotating plate (25) is concentric with the first rotating disk (14), and a square rod (23) is concentrically fixed on the rotating plate (25); the power transmission component includes a second rotating disk (24) concentric with the first rotating disk (14), the second rotating disk (24) is located on the right side of the first rotating disk (14), a gap is set between the second rotating disk (24) and the first rotating disk (14), and the second rotating disk (24) is concentrically fixed on the square rod (23) toward A plurality of protrusions are fixed on one end of the first rotating disk (14) and on one end of the second rotating disk (24) facing the first rotating disk (14). After the end surfaces of the first rotating disk (14) and the second rotating disk (24) are in contact with each other, the protrusions can be inserted into the slots and transmit torque. A second bevel gear (21) is slidably sleeved on the square rod (23). The second bevel gear (21) rotates along with the square rod (23). A fixing ring (22) is rotatably sleeved on the second bevel gear (21). The fixing ring (22) is fixedly connected to the base (1). A first spring (26) is sleeved on a square rod (23) between a plate (25) and a second bevel gear (21); a first bevel gear (20) is rotatably connected to the lower end of the top plate of the base (1); the first bevel gear (20) is meshed with the second bevel gear (21); a gear ring (19) is fixedly sleeved on the outer side of the first bevel gear (20); a rack (18) is fixed on any connecting plate (6); a length direction of the rack (18) is parallel to a movement direction of the connecting plate (6); and the rack (18) is meshed with the gear ring (19).

8. The electronic radial artery compression hemostat according to claim 1, characterized in that: A plurality of switches (32) are arranged on the upper end of the base (1); the switches (32), a controller, a power source and an electromagnet (34) are electrically connected; and the magnitude of the current flowing through the electromagnet (34) is changed by pressing different switches (32).

9. The electronic radial artery compression hemostat according to claim 1, characterized in that: A buzzer (40) is fixed on the upper end of the base (1), and the buzzer (40) is electrically connected to a timing module of the controller.

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