A pressure hemostasis device for cardiovascular surgery

Abstract

A pressure hemostasis device for cardiovascular surgery includes a lateral leg limiting block with an arc-shaped groove on one side, into which the patient's leg requiring hemostasis is placed; a limiting device on the surface of the lateral leg limiting block to restrict the position of gauze; a tensioning device on top of the limiting device to tension one end of the gauze; a compression device on top of the lateral leg limiting block to compress one end of the gauze; and a storage device on the outside of the lateral leg limiting block to store the gauze. The advantages of this invention are: by using the lateral leg limiting block and the tensioned gauze to apply pressure to the patient's incision for hemostasis, it eliminates the need for prolonged manual pressure by medical staff, reducing their workload; simultaneously, the gauze remains taut at the patient's incision, preventing pressure failure even when the patient moves, overcoming the shortcomings of saline bag pressure hemostasis.

Description

Technical Field

[0001] This invention relates to a hemostatic device, and more particularly to a pressure hemostatic device for cardiovascular surgery. Background Technology

[0002] The Department of Cardiology is a clinical department within the general internal medicine department of hospitals at all levels, established for the diagnosis and treatment of cardiovascular diseases. Cardiovascular interventional procedures are frequently required for treatment. Currently, clinical cardiac catheterization procedures involve placing a catheter through the femoral artery into the patient's heart or related blood vessels in the arm and leg for treatment. Typically, during a cardiovascular interventional procedure, the catheter is inserted through the femoral artery in the leg. After the procedure, the catheter and sheath in the femoral artery are removed. Post-cardiovascular interventional procedures may result in bleeding, necessitating pressure application to the interventional incision for hemostasis.

[0003] Currently, when performing pressure hemostasis, saline bags or other heavy objects are generally used to manually apply local pressure to achieve hemostasis. However, the prolonged pressure time places a heavy workload on medical staff; at the same time, unconscious shaking by the patient can cause the pressure to fail, resulting in bleeding from the incision site.

[0004] To address the aforementioned issues, there is a need for a pressure-based hemostasis device for cardiovascular surgery to meet postoperative hemostasis requirements. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a pressure hemostasis device for cardiovascular surgery.

[0006] The object of the present invention is achieved like this:

[0007] A pressure hemostasis device for cardiovascular surgery includes a lateral leg limiting block, wherein an arc-shaped groove is provided on one side of the lateral leg limiting block, and the leg for which hemostasis is required is placed in the arc-shaped groove;

[0008] A limiting device is provided on the surface of the limiting block on the outer side of the leg to limit the position of the gauze;

[0009] A tensioning device is provided on top of the limiting device to tighten one end of the gauze;

[0010] A clamping device is located on top of the limiting block on the outer side of the leg to clamp one end of the gauze.

[0011] A storage device is located outside the outer limit block of the leg for storing gauze.

[0012] Furthermore, the limiting device includes a top limiting plate, a top pull-back plate, an upper guide plate, and an inner limiting plate. The top of the outer leg limiting block is slidably connected to the top limiting plate. A top groove is provided between the top limiting plate and the outer leg limiting block. The top pull-back plate is provided at the upper part of the top limiting plate. A pull-back groove is provided through the top pull-back plate. The upper guide plate is provided at the upper outer end of the outer leg limiting block. An guide groove and an outlet groove are provided through the upper and lower sides of the arc-shaped groove. The inner limiting plate is provided on the upper and lower sides respectively. A limiting groove is provided through the inner limiting plate. Gauze passes through the top groove, the guide groove, several limiting grooves, and the outlet groove in sequence.

[0013] Furthermore, the tensioning device includes a rotating component and a moving component, with the moving component disposed on one side of the limiting device and the rotating component disposed on the top of the limiting device.

[0014] Furthermore, the moving component includes a positioning plate and a tensioning push rod. The positioning plate is disposed on the top surface of the storage device, and the tensioning push rod is installed on one side of the positioning plate. The output end of the tensioning push rod is fixedly connected to the limiting device.

[0015] Furthermore, the rotating assembly includes a rotating ear plate, a rotating motor, a tensioning shaft, and a clamping plug. A pair of rotating ear plates are provided on the top of the limiting device, and the tensioning shaft is rotatably connected between the rotating ear plates. The rotating motor is installed on the outside of the rotating ear plates, and the output shaft of the rotating motor extends to the inside of the rotating ear plates and is fixedly connected to the tensioning shaft. A tensioning groove is formed on the surface of the tensioning shaft, and a plurality of clamping plugs are inserted in the tensioning groove to fix the outer end of the gauze in the tensioning groove through the clamping plugs.

[0016] Furthermore, the outer side of the tensioning shaft is provided with several fixing spikes.

[0017] Furthermore, the clamping device includes a lower pressure bar, an upper pressure bar, a slider, a clamping screw, and a handwheel. A clamping groove is formed on the top surface of the outer leg limiting block, and the lower pressure bar is provided on the bottom surface of the clamping groove. Sliding grooves are formed on both sides of the clamping groove, and the slider is slidably connected in the sliding groove. The upper pressure bar is provided between the two sliders. The clamping screw is rotatably connected to the top surface of the slider. The clamping screw extends through to the upper part of the outer leg limiting block, and the clamping screw is screwed to the upper side wall of the sliding groove.

[0018] Furthermore, a cutting device is provided between the upper pressure strip and the lower pressure strip to cut the gauze.

[0019] Furthermore, the cutting device includes a moving block, a connecting rod, a mounting block, a cutting motor, and a swing cutter head. A cutting groove is formed through the middle of the upper pressure bar and the lower pressure bar. The moving block is slidably connected to the top of the cutting groove. The moving block is rotatably connected to the connecting rod. The mounting block is set at the bottom of the other end of the connecting rod. The cutting motor is mounted on the outside of the mounting block. The output shaft of the cutting motor extends to the other side of the mounting block and is set thereon. The swing cutter head is located in the cutting groove.

[0020] Furthermore, a pull ring is provided on the upper part of the connecting rod.

[0021] Furthermore, the storage device includes a storage box, a lid, a fixed shaft, and a winding rod. The storage box is located on the side of the outer limiting block of the leg that is away from the arc-shaped groove. The lid is located on the other side of the storage box. A storage groove is formed through the top surface of the storage box. The inner cavity of the storage box is rotatably connected to the fixed shaft. The winding rod is located on the outside of the fixed shaft. Gauze is wound around the outside of the winding rod, and one end of the gauze extends out from the storage groove.

[0022] Furthermore, ultraviolet disinfection lamps are installed on both the upper and lower side walls of the inner cavity of the storage box.

[0023] Furthermore, a local pressure device is provided on the side of the outer leg limiting block near the arc-shaped groove.

[0024] Furthermore, the local pressurization device includes a limiting rod, a connecting piece, an arc-shaped plate, a mounting plate, a fixing bolt, a pressurizing push rod, and a pressurizing head. The limiting rod is detachably mounted on the upper and lower parts of the side of the leg outer limiting block near the arc-shaped groove. The limiting rod has a U-shaped structure. The connecting piece is slidably connected to both limiting rods. The arc-shaped plate is arranged between the two connecting pieces. The arc-shaped plate has a through-hole for fixing. The mounting plate is slidably connected to the inner side of the arc-shaped plate. The fixing bolt passes through the fixing hole and is fixedly connected to the mounting plate. The pressurizing push rod is installed on the inner side of the mounting plate. The pressurizing head is provided at the output end of the pressurizing push rod.

[0025] Advantages of this invention:

[0026] 1. This device uses a limiting block on the outer side of the leg and taut gauze to apply pressure to the patient's incision to stop bleeding, thus eliminating the need for prolonged manual pressure by medical staff and reducing their workload. Simultaneously, the gauze remains taut at the incision site, preventing pressure loss even when the patient moves, overcoming the shortcomings of saline bags for hemostasis. Furthermore, the tensioning device adjusts the pressure of the gauze on the patient's leg, ensuring it remains within a suitable range and preventing bleeding from the wound due to insufficient pressure.

[0027] 2. This equipment can apply further pressure to the incision through a local pressure device to ensure sufficient pressure. At the same time, the pressure position and angle of the local pressure device can be adjusted, making it more convenient to use. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a pressure hemostasis device used in cardiovascular surgery.

[0029] Figure 2 This is a schematic diagram of a pressure hemostasis device for cardiovascular surgery that does not include a local pressure device.

[0030] Figure 3 This is a schematic diagram of a pressure hemostasis device for cardiovascular surgery that does not use gauze and applies local pressure.

[0031] Figure 4 This is a schematic diagram of the limiting device.

[0032] Figure 5 This is a schematic diagram of the mobile component structure.

[0033] Figure 6 This is a schematic diagram of the rotating component structure.

[0034] Figure 7 This is a cross-sectional view of the clamping groove.

[0035] Figure 8 This is a schematic diagram of the clamping device.

[0036] Figure 9 This is a schematic diagram of the cutting device.

[0037] Figure 10 This is a schematic diagram of the storage device structure when the lid is open.

[0038] Figure 11 This is a schematic diagram of a local pressurization device.

[0039] In the picture:

[0040] 1. Leg outer side limiting block; 11. Arc-shaped groove;

[0041] 2. Limiting device; 21. Top limiting plate; 22. Top pull-back plate; 23. Upper guide plate; 24. Inner limiting plate; 25. Top groove; 26. Pull-back groove; 27. Guide groove; 28. Outlet groove; 29. ​​Limiting groove;

[0042] 3. Tensioning device; 31. Rotating assembly; 311. Rotating ear plate; 312. Rotating motor; 313. Tensioning shaft; 314. Tensioning groove; 315. Pressing plug; 32. Moving assembly; 321. Positioning plate; 322. Tensioning push rod.

[0043] 4. Clamping device; 41. Lower pressure bar; 42. Upper pressure bar; 43. Slide groove; 44. Slider; 45. Clamping screw; 46. Handwheel; 47. Clamping groove;

[0044] 5. Cutting device; 51. Cutting groove; 52. Moving block; 53. Connecting rod; 54. Mounting block; 55. Cutting motor; 56. Swinging cutter head; 57. Pulling ring;

[0045] 6. Storage device; 61. Storage box; 62. Box lid; 63. Fixing shaft; 64. Winding rod; 65. Storage slot; 66. Ultraviolet disinfection lamp;

[0046] 7. Local pressure device; 71. Limiting rod; 72. Connecting piece; 73. Arc plate; 74. Fixing groove; 75. Mounting plate; 76. Fixing bolt; 77. Pressure push rod; 78. Pressure head. Detailed Implementation

[0047] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0048] This application provides a pressure hemostasis device for cardiovascular surgery.

[0049] Example 1, such as Figure 1-11 As shown.

[0050] A pressure hemostasis device for cardiovascular surgery includes a lateral leg restraint block 1. An arc-shaped groove 11 is formed on one side of the lateral leg restraint block 1, and the leg requiring hemostasis is placed within the arc-shaped groove 11.

[0051] like Figure 4 It also includes a limiting device 2, which is disposed on the surface of the limiting block 1 on the outer side of the leg to limit the position of the gauze, so that the gauze can wrap the patient's leg along the arc groove 11, thereby applying pressure to compress and stop bleeding at the incision site.

[0052] The limiting device 2 includes a top limiting plate 21, a top pull-back plate 22, an upper guide plate 23, and an inner limiting plate 24. The top of the outer leg limiting block 1 is slidably connected to the top limiting plate 21, and a top groove 25 is provided between the top limiting plate 21 and the outer leg limiting block 1, through which gauze passes. The top pull-back plate 22 is provided on the upper part of the top limiting plate 21, and a pull-back groove 26 is provided through the top pull-back plate 22, through which one end of the gauze covering the patient's leg exits. The upper guide plate 23 is provided on the upper outer end of the outer leg limiting block 1, and an guide groove 27 and an outlet groove 28 are provided through the upper guide plate 23. The upper and lower sides of the arc-shaped groove 11 are respectively provided with inner limiting plates 24. The inner limiting plates 24 have through-hole limiting grooves 29. Gauze passes through the top groove 25, the inlet groove 27, several limiting grooves 29, and the outlet groove 28 in sequence, covering the incision site on the patient's leg. The top groove 25, the inlet groove 27, the several limiting grooves 29, and the outlet groove 28 all restrict the direction of the gauze, ensuring that the gauze fits tightly against the patient's leg for hemostasis. This eliminates the need for prolonged manual pressure from medical staff, reducing their workload. It also avoids the drawback of saline bags being compressed and easily falling off due to patient movement.

[0053] like Figure 5 , 6 It also includes a tensioning device 3, which is located on the top of the limiting device 2, to tighten one end of the gauze, thereby adjusting the pressure of the gauze on the patient's leg incision and avoiding excessive or insufficient pressure that could cause bleeding at the incision site.

[0054] The tensioning device 3 includes a rotating component 31 and a moving component 32. The moving component 32 is disposed on one side of the limiting device 2, and the rotating component 31 is disposed on the top of the limiting device 2. The moving component 32 adjusts the pressure of the gauze on the patient's incision by displacing the gauze to tighten the outer end; the rotating component 31 adjusts the pressure of the gauze on the patient's incision by rotating to tighten the outer end of the gauze.

[0055] The device also includes the moving component 32, which comprises a positioning plate 321 and a tensioning push rod 322. The positioning plate 321 is mounted on the top surface of the storage device 6, meaning it is located in the center of the top surface of the storage box 61. The tensioning push rod 322 is mounted on one side of the positioning plate 321, and its output end is fixedly connected to the limiting device 2, meaning it is fixedly connected to the top limiting plate 21. The tensioning push rod 322 is preferably a multi-stage electric push rod from Beijing Tianyu Innovation Technology Co., Ltd. The tensioning push rod 322 is powered by an external power source and is equipped with corresponding buttons to control its extension and retraction.

[0056] The rotating assembly 31 includes a rotating ear plate 311, a rotating motor 312, a tensioning shaft 313, and a pressure plug 315. A pair of rotating ear plates 311 are provided on the top of the limiting device 2, and the tensioning shaft 313 is rotatably connected between the rotating ear plates 311. The outer end of the gauze is wrapped around the surface of the tensioning shaft 313 for fixation. Several fixing spikes are provided on the outer side of the tensioning shaft 313 to ensure a more secure wrapping and fixation of the gauze, preventing it from coming loose during rotation and tightening, which could lead to failure of pressure hemostasis and injury to the patient. The rotating motor 312 is mounted on the outer side of the rotating ear plate 311. The rotating motor 312 is preferably a stepper motor from Dongguan Bangshuo Motor Co., Ltd., model 57H3P7652A3. The output shaft of the rotating motor 312 extends to the inner side of the rotating ear plate 311 and is fixedly connected to the tensioning shaft 313. The output shaft of the rotary motor 312 is connected to the tensioning shaft 313 via an overload coupling to prevent the rotary motor 312 from overloading and becoming damaged when the gauze is too tight. In this case, the overload coupling disconnects, protecting the rotary motor 312, and the tensioning shaft 313 also stops rotating, preventing the outer end of the gauze from coming off. The rotary motor 312 is powered by an external power source and has corresponding buttons to control its forward and reverse rotation, thereby tightening and loosening the gauze to adjust the pressure at the patient's incision site. The tensioning shaft 313 has a tensioning groove 314 on its surface, and several compression plugs 315 are inserted into the tensioning groove 314. The compression plugs 315 fix the outer end of the gauze within the tensioning groove 314 for secure fixation, and then the outer end of the gauze is wrapped around the outside of the tensioning shaft 313.

[0057] like Figure 7 , 8 It also includes a pressing device 4, which is located on the top of the outer leg limiting block 1 to press one end of the gauze.

[0058] The clamping device 4 includes a lower clamping bar 41, an upper clamping bar 42, a slider 44, a clamping screw 45, and a handwheel 46. A clamping groove 47 is formed on the top surface of the outer leg limiting block 1. The lower clamping bar 41 is positioned on the bottom surface of the clamping groove 47. Sliding grooves 43 are formed on both sides of the clamping groove 47. The slider 44 is slidably connected within the sliding grooves 43. The upper clamping bar 42 is positioned between the two sliders 44. The clamping screw 45 is rotatably connected to the top surface of the slider 44. The clamping screw 45 extends through to the upper part of the outer leg limiting block 1 and is positioned on the handwheel 46. The clamping screw 45 is screwed to the upper sidewall of the sliding groove 43. Rotating the two handwheels 46 moves the slider 44 up and down via the clamping screw, and the two sliders 44 then move the upper clamping bar 42. The upper pressure strip 42 presses one end of the gauze against the surface of the lower pressure strip 41, fixing the gauze in place and preventing it from coming undone, which would cause the pressure to stop the bleeding at the patient's incision to fail. Both the upper pressure strip 42 and the lower pressure strip 41 have toothed structures on their opposing sides, which mesh with each other. The gauze end is pressed between the toothed structures of the upper and lower pressure strips 42 and 41, making the fixation more secure. Furthermore, the upper pressure strip 42 moves under the action of the clamping screw. After the upper pressure strip 42 compresses the gauze, the gauze exerts only a vertical force on the clamping screw, without applying the torque needed to rotate it. Therefore, under the pressure of the upper pressure strip 42, the gauze end will not come undone.

[0059] A cutting device 5 is provided between the upper pressure strip 42 and the lower pressure strip 41 to cut the gauze. After the hemostasis operation is completed, the gauze is cut open at one end by the cutting device 5, making it easy to remove the gauze.

[0060] like Figure 9The cutting device 5 includes a moving block 52, a connecting rod 53, a mounting block 54, a cutting motor 55, and a swing cutter head 56. A cutting groove 51 is formed through the middle of the upper pressure bar 42 and the lower pressure bar 41. The top of the cutting groove 51 is slidably connected to the moving block 52. The moving block 52 is rotatably connected to the connecting rod 53. The mounting block 54 is located at the bottom of the other end of the connecting rod 53. The cutting motor 55 is mounted on the outside of the mounting block 54. The cutting motor 55 is preferably a stepper motor from Dongguan Bangshuo Motor Co., Ltd., model 57H3P7652A3. The output shaft of the cutting motor 55 extends to the other side of the mounting block 54 and is where the swing cutter head 56 is located. The swing cutter head 56 is located within the cutting groove 51. The swing cutter head 56 has a fan-shaped structure, with the arc edge of the fan shape serving as the cutting edge to cut the gauze. This also avoids harming medical staff. During the oscillating cutting process of the oscillating cutter head 56, medical staff may easily touch the straight edge of the oscillating cutter head 56 when moving it. Since the straight edge is not sharpened, it will not cause harm to medical staff. The cutting motor 55 is powered by an external power source and is equipped with a corresponding button to control the oscillating cutter head 56 to swing back and forth within the cutting groove 51 to cut the gauze. The oscillating cutter head 56 will not extend out of the cutting groove 51 to avoid scratching medical staff. During the hemostasis process, the mounting block 54 is pulled up to disengage the oscillating cutter head 56 from the cutting groove 51, preventing the oscillating cutter head 56 from tearing the gauze. After the hemostasis is completed, the mounting block 54 is lowered, so that the oscillating cutter head 56 is located in the cutting groove 51. Then, the corresponding button is pressed, the cutting motor 55 is started, and the oscillating cutter head 56 is controlled to swing back and forth to cut the gauze. Pulling the mounting block 54 toward the other end of the cutting groove 51 causes the swinging cutter head 56 to cut one end of the gauze horizontally. The upper part of the connecting rod 53 is provided with a pulling ring 57, which facilitates pulling the mounting block 54 to move, thereby moving the position of the swinging cutter head 56 to cut the gauze horizontally.

[0061] like Figure 10 It also includes a storage device 6, which is located outside the outer limit block of the leg for storing gauze.

[0062] The storage device 6 includes a storage box 61, a lid 62, a fixing shaft 63, and a wrapping roller 64. The storage box 61 is located on the side of the outer leg limiting block 1 away from the arc-shaped groove 11, and the lid 62 is located on the other side of the storage box 61 for easy replacement and installation of gauze. A storage groove 65 is formed through the top surface of the storage box 61 for subsequent hemostasis and pressure application. The fixing shaft 63 is rotatably connected to the inner cavity of the storage box 61, and the wrapping roller 64 is located on the outer side of the fixing shaft 63. Gauze is wrapped around the outer side of the wrapping roller 64, with one end of the gauze extending from the storage groove 65 for subsequent hemostasis and pressure application. Unused gauze is stored in the storage box 61 to prevent contamination.

[0063] The storage box 61 is equipped with ultraviolet disinfection lamps 66 on both the upper and lower side walls of its inner cavity. The ultraviolet disinfection lamps 66 are powered by an external power source and are equipped with corresponding buttons to control the start and stop of the ultraviolet disinfection lamps 66. This sterilizes the inner cavity of the storage box 61, keeping the stored gauze in a sterile environment and preventing any impact on the patient's health during subsequent use.

[0064] A local pressure device 7 is provided on the side of the leg lateral limiting block 1 near the arc-shaped groove 11. This device applies further pressure to the incision site on the patient's leg to ensure sufficient pressure. The pressure position and angle of the local pressure device 7 can be adjusted, making it more convenient to use.

[0065] like Figure 11The localized pressurization device 7 includes a limiting rod 71, a connecting piece 72, an arc-shaped plate 73, a mounting plate 75, a fixing bolt 76, a pressurization push rod 77, and a pressurization head 78. The limiting rod 71 is detachably mounted on the upper and lower parts of the leg-side limiting block 1 near the arc-shaped groove 11. The limiting rod 71 has a U-shaped structure. The connecting piece 72 is slidably connected to both limiting rods 71, and the arc-shaped plate 73 is disposed between the two connecting pieces 72. The curvature of the arc-shaped plate 73 is approximately similar to the curvature of the human leg, thus making the pressurization more stable. The arc-shaped plate 73 moves along the middle of the U-shape of the limiting rod 71 via the connecting piece 72, thereby adjusting the position of the localized pressurization. The arc-shaped plate 73 has a through-hole fixing groove 74. The mounting plate 75 is slidably connected to the inner side of the arc-shaped plate 73. The fixing bolt 76 passes through the fixing groove 74 and is fixedly connected to the mounting plate 75, thereby fixing the position of the mounting plate 75 within the fixing groove 74. The position of the localized pressure along the length of the patient's leg is adjusted by moving the arc-shaped plate 73, and the position and angle of the localized pressure along the circumference of the patient's leg are adjusted by moving the mounting plate 75. A pressure push rod 77 is mounted on the inner side of the mounting plate 75. The pressure push rod 77 is preferably a multi-stage electric push rod from Beijing Tianyu Innovation Technology Co., Ltd. A pressure head 78 is provided at the output end of the pressure push rod 77. Driven by the pressure push rod 77, the pressure head 78 presses against the incision site on the patient's leg. The pressure head 78 applies secondary localized pressure to the incision site, ensuring the pressure at the incision site is within a suitable range.

[0066] When using this invention:

[0067] 1. Pull one end of the gauze out from the storage groove on the top surface of the storage box, then pass it through the top groove, the inlet groove, and several limiting grooves, and then wrap it around the outside of the incision on the patient's leg. Finally, the outer end of the wrapped gauze goes out from the outlet groove and then goes in from the tensioning groove.

[0068] 2. The outer end of the gauze is pressed into the tension groove on the tensioning shaft by the clamping plug. Pressing the corresponding button causes the rotary motor to rotate, causing the outer end of the gauze to wrap around the surface of the tensioning shaft.

[0069] 3. Rotate the two handwheels to drive the upper pressure bar to press one end of the gauze down onto the surface of the lower pressure bar for fixation.

[0070] 4. Adjust the gauze pressure. One method is through the rotating component; the other is through the moving component. For both methods, simply press the corresponding button to activate the tensioning push rod and start the rotating motor.

[0071] 5. Depending on the actual situation, use the local pressure device to apply local pressure to the patient's leg incision. In use, first install the limiting rod. Then adjust the position and angle of the pressure head. After adjustment, press the corresponding button, and the pressure push rod will drive the pressure head to apply secondary pressure to the patient's leg incision.

[0072] 6. After applying pressure to stop the bleeding, remove the local pressure device. Then, cut one end of the gauze using the cutting device. Simultaneously, untie the other end of the gauze from the tensioning shaft surface and remove it from the tensioning groove. Then, bandage the patient's leg.

[0073] It should be noted that, in this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0074] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims. It should be understood that this application is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A pressure hemostasis device for cardiovascular surgery, characterized in that: It includes a leg lateral limiting block (1), and an arc-shaped groove (11) is provided on one side of the leg lateral limiting block (1), and the leg that the patient needs to stop bleeding is placed in the arc-shaped groove (11); A limiting device (2) is provided on the surface of the limiting block (1) on the outer side of the leg to limit the position of the gauze; The limiting device (2) includes a top limiting plate (21), a top pull-back plate (22), an upper guide plate (23), and an inner limiting plate (24). The top of the outer leg limiting block (1) is slidably connected to the top limiting plate (21). A top groove (25) is provided between the top limiting plate (21) and the outer leg limiting block (1). The top pull-back plate (22) is provided on the upper part of the top limiting plate (21). A pull-back groove (26) is provided through the top pull-back plate (22). The upper outer end of the leg outer limiting block (1) is provided with the upper guide plate (23), the upper guide plate (23) is provided with a guide groove (27) and an outlet groove (28) through it, the upper and lower sides of the arc groove (11) are respectively provided with the inner limiting plate (24), the inner limiting plate (24) is provided with a limiting groove (29) through it, and the gauze passes through the top groove (25), the guide groove (27), several limiting grooves (29) and the outlet groove (28) in sequence; A tensioning device (3) is provided on top of the limiting device (2) to tighten one end of the gauze; A pressing device (4) is provided on the top of the leg outer limit block (1) to press one end of the gauze; Storage device (6) is provided outside the leg outer limiting block (1) for storing gauze; The pressing device (4) includes a lower pressing bar (41), an upper pressing bar (42), a slider (44), a pressing screw (45), and a handwheel (46). A cutting device (5) is provided between the upper pressing bar (42) and the lower pressing bar (41) to cut the gauze. The cutting device includes a moving block, a connecting rod, a mounting block, a cutting motor, and a swinging cutter head. A cutting groove is provided through the middle of the upper pressing bar and the lower pressing bar. The top of the cutting groove is slidably connected to the moving block. The moving block is rotatably connected to the connecting rod. The mounting block is provided at the bottom of the other end of the connecting rod. The cutting motor is installed on the outside of the mounting block. The output shaft of the cutting motor extends to the other side of the mounting block and is provided with the swinging cutter head. The swinging cutter head is located in the cutting groove.

2. The pressure hemostasis device for cardiovascular surgery according to claim 1, characterized in that: The tensioning device (3) includes a rotating component (31) and a moving component (32). The moving component (32) is provided on one side of the limiting device (2), and the rotating component (31) is provided on the top of the limiting device (2).

3. The pressure hemostasis device for cardiovascular surgery according to claim 2, characterized in that: The moving component (32) includes a positioning plate (321) and a tensioning push rod (322). The positioning plate (321) is provided on the top surface of the storage device (6). The tensioning push rod (322) is installed on one side of the positioning plate (321). The output end of the tensioning push rod (322) is fixedly connected to the limiting device (2).

4. The pressure hemostasis device for cardiovascular surgery according to claim 2, characterized in that: The rotating assembly (31) includes a rotating ear plate (311), a rotating motor (312), a tensioning shaft (313), and a clamping plug (315). A pair of rotating ear plates (311) are provided on the top of the limiting device (2). The tensioning shaft (313) is rotatably connected between the rotating ear plates (311). The rotating motor (312) is installed on the outside of the rotating ear plate (311). The output shaft of the rotating motor (312) extends to the inside of the rotating ear plate (311) and is fixedly connected to the tensioning shaft (313). A tensioning groove (314) is provided on the surface of the tensioning shaft (313). Several clamping plugs (315) are inserted in the tensioning groove (314) to fix the outer end of the gauze in the tensioning groove (314).

5. The pressure hemostasis device for cardiovascular surgery according to claim 1, characterized in that: The upper surface of the leg outer limiting block (1) is provided with a pressing groove (47), the lower pressing strip (41) is provided on the bottom surface of the pressing groove (47), and sliding grooves (43) are provided on both sides of the pressing groove (47). The slider (44) is slidably connected in the sliding groove (43), and the upper pressing strip (42) is provided between the two sliders (44). The top surface of the slider (44) is rotatably connected to the pressing screw (45). The pressing screw (45) extends through to the upper part of the leg outer limiting block (1) and is provided with a handwheel (46). The pressing screw (45) is screwed to the upper side wall of the sliding groove (43).

6. The pressure hemostasis device for cardiovascular surgery according to claim 1, characterized in that: The storage device (6) includes a storage box (61), a box cover (62), a fixed shaft (63), and a winding rod (64). The storage box (61) is located on the side of the leg outer limiting block (1) away from the arc groove (11). The box cover (62) is located on the other side of the storage box (61). A storage groove (65) is opened through the top surface of the storage box (61). The fixed shaft (63) is rotatably connected to the inner cavity of the storage box (61). The winding rod (64) is located on the outside of the fixed shaft (63). Gauze is wrapped around the outside of the winding rod (64), and one end of the gauze extends out from the storage groove (65).

7. The pressure hemostasis device for cardiovascular surgery according to claim 6, characterized in that: The storage box (61) is equipped with ultraviolet disinfection lamps (66) on both the upper and lower side walls of its inner cavity.

8. The pressure hemostasis device for cardiovascular surgery according to claim 1, characterized in that: The leg outer limiting block (1) is provided with a local pressure device (7) on the side near the arc groove (11).

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