Arterial compression hemostat

Abstract

The present application provides a kind of arterial compression hemostat, including shell, shell is provided with multiple groups rotatable winding frame, winding frame is provided with fixed band, the end of multiple groups fixed band is connected by buckle, rotatable drive cylinder is arranged in shell, drive cylinder end is provided with adjusting wheel, the end of drive cylinder is provided with compression pad, drive cylinder is provided with the same group number of drive unit as fixed band, each group drive unit is connected with one group fixed band, to convert the rotation of drive cylinder into the rotation of drive winding frame, and remove the drive of winding frame when fixed band is tensioned.The hemostat can be used to tighten multiple groups of fixed band in different ranges to perform arterial compression hemostasis, making it convenient for patients of different sizes to use and move, and the group of fixed band can be controlled to tighten without further tightening the fixed band that has been tightened during the movement process, effectively solving the many inconveniences of existing hemostatic devices when in use.

Description

Technical Field

[0001] This invention relates to the field of arterial puncture surgery technology, and specifically to an arterial compression hemostat. Background Technology

[0002] Femoral artery puncture is the most common method of arterial puncture in cardiac catheterization. In the groin area, the femoral vein and femoral nerve are located medial and lateral to the femoral artery, respectively. The femoral artery on the side with stronger pulsation is chosen as the vascular access route. Due to the high arterial pressure, arterial puncture can cause local bleeding and swelling. To avoid subcutaneous hematoma after arterial puncture, timely pressure hemostasis is necessary. The pressure hemostasis time after arterial puncture is generally 10-15 minutes. Manual pressure hemostasis is not suitable for prolonged application; therefore, a hemostat is used for assistance.

[0003] For example, Chinese invention patent application number 202311069608.5 provides a femoral artery compression hemostat. This hemostat uses a compression element to stop bleeding in the artery. When the compression element presses the dressing tightly onto the thigh, the fixing element can be detached from the compression element, allowing for timely hemostasis without depressurization and reducing the risk of rebleeding. However, this type of hemostat requires the patient to be bedridden, restricting their movement during hemostasis and thus limiting their mobility.

[0004] For example, Chinese invention patent application number 202310682060.5 provides a compression hemostasis device after femoral artery puncture. This device uses a fixing ring to precisely contact the gauze with the wound after the patient's femoral artery puncture, preventing the hemostatic balloon from wobbling and becoming misaligned with the wound, thus avoiding life-threatening situations for the patient. Although this hemostasis device allows for convenient patient movement, the fixing band of the hemostasis device may loosen during movement, requiring re-fixation and reducing the device's practical value.

[0005] In summary, existing arterial hemostatic devices have many inconveniences in use. Therefore, in view of this, an arterial compression hemostatic device is proposed to solve the above problems. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the present invention proposes an arterial compression hemostat to solve the technical problems mentioned in the background art, which are that existing arterial compression hemostats have many inconveniences in use.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an arterial compression hemostat, comprising:

[0008] case;

[0009] Multiple sets of winding frames are provided, each rotatably mounted inside the housing. The winding frames are equipped with fixing straps, and the ends of the multiple sets of fixing straps are connected by buckles.

[0010] A drive cylinder, rotatably disposed within the housing along its axis, has an adjusting wheel at one end and a pressure pad at the other end; and

[0011] The drive unit has the same number of sets as the fixed belts, and each set is mounted on the drive cylinder and connected to one of the fixed belts, so as to convert the rotation of the drive cylinder into driving the rotation of the winding frame, and release the drive to the winding frame when the fixed belts are tensioned.

[0012] Furthermore, the drive cylinder is provided with an adjustment mechanism connected to the pressure pad, which adjusts the downward pressure on the pressure pad.

[0013] Furthermore, the adjustment mechanism includes:

[0014] A threaded knob is screwed onto one end of the drive cylinder:

[0015] A connecting column is slidably disposed at the other end of the drive cylinder along the axis of the drive cylinder and rotatably connected to the pressure pad; and

[0016] The first elastic element is disposed inside the drive cylinder, and its two ends abut against the threaded knob and the connecting post, respectively.

[0017] Furthermore, the driving unit includes:

[0018] A drive disk is rotatably disposed within the housing along its axis;

[0019] A linkage mechanism is provided on the drive disk and connected to the winding frame to convert the rotation of the drive disk into the rotation of the winding frame;

[0020] A control mechanism, disposed on the drive cylinder and connected to the drive disc, converts the rotation of the drive cylinder into the rotation of the drive disc, and releases the drive to the drive disc when the rotation of the winding frame is obstructed; and

[0021] A locking mechanism is disposed within the housing and connected to the drive disk to lock the rotation of the drive disk.

[0022] Furthermore, the linkage mechanism includes:

[0023] The first gear is mounted on the drive disk;

[0024] A second gear, rotatably disposed within the housing along its axis and meshing with the first gear, is provided with a first bevel gear coaxially mounted on the second gear; and

[0025] The second bevel gear is disposed at the end of the winding frame and meshes with the first bevel gear.

[0026] Furthermore, the control mechanism includes:

[0027] A control ring is rotatably disposed within the housing along its axis and connected to the drive cylinder; the drive disc is rotatably disposed at the bottom of the control ring.

[0028] A first ratchet disc is disposed on the drive disc;

[0029] A drive block, one end of which is hinged to the control ring, is mounted on the first ratchet disc, and the contact surface between the drive block and the first ratchet disc is an inclined plane; and

[0030] A torsion spring is used to connect the drive block and the control ring.

[0031] Furthermore, the drive cylinder is slidably disposed within the housing along its axis, and a connecting frame is provided on the drive cylinder. The connecting frame is slidably disposed within the control ring along the axis of the control ring, and an abutment post is provided at the bottom of the connecting frame. When the connecting frame slides, the abutment post can abut against the drive block.

[0032] Furthermore, the locking mechanism includes:

[0033] The second ratchet disc is disposed on the opposite side of the first ratchet disc on the drive disc, and is arranged symmetrically with the first ratchet disc along the drive disc.

[0034] A third ratchet disc is slidably disposed within the housing along its axis and engages with the second ratchet disc. A connecting sleeve is provided on the third ratchet disc.

[0035] A mounting post is disposed within the housing. The mounting post has multiple sets of alternately arranged first and second limiting blocks. The connecting sleeve is slidably fitted onto the mounting post and is located between one set of the first and second limiting blocks.

[0036] The second elastic element has one end abutting against the second limiting block and the other end abutting against the connecting sleeve.

[0037] Furthermore, the mounting post is slidably disposed within the housing along its axis, with one end extending outside the housing, and a third elastic element is disposed between the other end of the mounting post and the housing, the elastic force of the third elastic element being greater than that of the second elastic element.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. When using this hemostat, it is fixed to the patient's limb with straps, and pressure pads are used to apply pressure to the puncture site for hemostasis. After the pressure pads are fixed, the drive cylinder is rotated. During the rotation of the drive cylinder, multiple sets of drive units control multiple sets of winding frames to rotate. The winding frames tighten the fixing straps during rotation, so that multiple sets of fixing straps can be retracted simultaneously to fix the hemostat to the patient's limb. When one set of fixing straps is tightened to its limit and cannot be tightened further, the drive to the winding frame can be automatically released, so that multiple sets of fixing straps can be tightened sequentially according to their binding positions. By tightening multiple sets of fixing straps at different ranges, the hemostat is firmly fixed to the patient's limb, which is convenient for patients of different body types to use and move around, without causing significant restriction to the patient's movement. Furthermore, if a set of fixing straps becomes loose during activity, the drive cylinder can be rotated to control the tightening of that set of fixing straps, without further tightening of the already tightened fixing straps. This effectively solves many inconveniences existing hemostats in use.

[0040] 2. When using this hemostat, the rotation of the drive cylinder drives the drive disc to rotate through the cooperation of the torsion spring, the drive block, and the first ratchet disc. The rotation of the drive disc is locked by the cooperation of the second and third ratchet discs. When the corresponding set of fixing straps is retracted to the limit position, the drive cylinder continues to rotate, and the inclined surface of the drive block causes the drive block to disengage from the first ratchet disc, thus preventing the corresponding drive disc and winding frame from rotating. When multiple sets of fixing straps are retracted to the limit position, the contact post can be pressed against the drive block by holding the housing and pressing the drive cylinder, so that the drive block is locked on the first ratchet disc again. Continuing to rotate the drive cylinder causes the drive disc to rotate slightly again, further tightening the retracted fixing straps to improve the fixing effect of the hemostat.

[0041] 3. After use, the hemostat can be compressed by pressing the mounting post into the housing. During the sliding process, the mounting post, through the cooperation of multiple sets of first limiting blocks, drives multiple sets of third ratchet discs to slide and disengage from multiple sets of second ratchet discs, thereby quickly releasing the position lock of multiple sets of drive discs and thus releasing the lock of the fixing straps. This allows multiple sets of fixing straps to loosen simultaneously, facilitating the rapid release of pressure on the patient's artery in emergency situations, effectively improving the convenience and safety of using the hemostat. Attached Figure Description

[0042] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0043] Figure 1 This is a three-dimensional structural schematic diagram of an arterial compression hemostat provided by the present invention;

[0044] Figure 2 This is a schematic diagram of the internal structure of an arterial compression hemostat according to the present invention;

[0045] Figure 3 This is a schematic diagram of the internal structure of the drive cylinder in an arterial compression hemostat according to the present invention;

[0046] Figure 4 This is a schematic diagram of the winding frame in an arterial compression hemostat according to the present invention;

[0047] Figure 5 This is a schematic diagram of the installation structure of the drive disc in an arterial compression hemostat according to the present invention;

[0048] Figure 6 for Figure 5 A schematic diagram of the disassembled structure;

[0049] Figure 7 for Figure 6 Enlarged view of region a in the middle;

[0050] Figure 8 This is a schematic diagram of the drive disc in an arterial compression hemostat according to the present invention.

[0051] Figure label:

[0052] 101. Housing; 102. Drive cylinder; 103. Adjusting wheel; 104. Connecting frame; 105. Abutting post; 106. Connecting post; 107. Pressure pad; 108. Threaded knob; 109. First elastic element;

[0053] 201. Control ring; 202. Drive disc; 203. First ratchet disc; 204. Second ratchet disc; 205. First gear;

[0054] 301. Third ratchet disc; 302. Connecting sleeve;

[0055] 401. Mounting post; 402. First limiting block; 403. Second limiting block; 404. Second elastic element; 405. Third elastic element;

[0056] 501. Drive block; 502. Torsion spring;

[0057] 601. Second gear; 602. First bevel gear; 603. Second bevel gear; 604. Winding frame; 605. Fixing belt; 606. Buckle. Detailed Implementation

[0058] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0059] Example:

[0060] like Figure 1 , 2 As shown, this invention provides an arterial compression hemostat, including a housing 101. Multiple rotatable winding frames 604 are disposed within the housing 101, and fixing straps 605 are provided on the winding frames 604. The ends of the fixing straps 605 are connected by buckles 606. In use, the multiple fixing straps 605, through the cooperation of the buckles 606, are crisscrossed and bound to the patient's limb to fix the hemostat to the patient's limb for arterial hemostasis. Furthermore, the rotation of the winding frames 604 can be controlled to tighten one end of the fixing straps 605, improving the fixation effect. This avoids the adverse reactions such as blisters on the patient's skin caused by adhesive fixation.

[0061] like Figures 1 to 3 As shown, in this embodiment, a rotatable drive cylinder 102 is provided inside the housing 101. An adjusting wheel 103 is provided at one end of the drive cylinder 102, and a pressure pad 107 is provided at the other end of the drive cylinder 102. An adjusting mechanism connected to the pressure pad 107 is provided inside the drive cylinder 102, and the pressure pad 107 is subjected to downward pressure by the adjusting mechanism. The adjusting mechanism includes a threaded knob 108 screwed to one end of the drive cylinder 102, and a connecting post 106 slidably provided along its axis at the other end of the drive cylinder 102. The connecting post 106 is rotatably connected to the pressure pad 107. A first elastic element 109 is provided inside the drive cylinder 102, and the two ends of the first elastic element 109 abut against the threaded knob 108 and the connecting post 106, respectively.

[0062] After the hemostat is fixed in place, the patient's artery can be compressed and hemostasis achieved through the compression pad 107. During hemostasis, a sterile pad can be added to the compression pad 107 to prevent contamination of the patient's wound. After the device is fixed, the threaded knob 108 can be rotated to slide along the axis of the drive cylinder 102, compressing the first elastic element 109 to varying degrees, thereby applying pressure to the compression pad 107 and allowing for easy adjustment of the compression force.

[0063] like Figure 2 , 3As shown in Figure 4, in this embodiment, the drive cylinder 102 is provided with the same number of drive units as the fixed belt 605. Each drive unit is connected to one of the fixed belts 605. The drive unit converts the rotation of the drive cylinder 102 into the rotation of the winding frame 604, and releases the drive on the winding frame 604 when the fixed belt 605 is tensioned. The drive unit includes a drive disk 202 rotatably disposed in the housing 101. The drive disk 202 is provided with a linkage mechanism connected to the winding frame 604. The linkage mechanism converts the rotation of the drive disk 202 into the rotation of the winding frame 604. The linkage mechanism includes a first gear 205 disposed on the drive disk 202, a rotatable second gear 601 disposed in the housing 101, the second gear 601 meshing with the first gear 205, a first bevel gear 602 coaxially mounted on the second gear 601, and a second bevel gear 603 meshing with the first bevel gear 602 at the end of the winding frame 604.

[0064] When in use, the device can drive the first gear 205 to rotate by controlling the drive disc 202 to rotate, and drive the first bevel gear 602 to rotate by the meshing of the first gear 205 and the second gear 601, and drive the winding frame 604 to rotate by the meshing of the first bevel gear 602 and the second bevel gear 603. During the rotation of the winding frame 604, one end of the fixing strap 605 can be retracted, so as to facilitate fixing the hemostat to the patient's body without greatly restricting the patient's movement.

[0065] like Figure 2 , 5 As shown in Figures 6 and 7, in this embodiment, the drive unit further includes a control mechanism. The control mechanism is disposed on the drive cylinder 102 and connected to the drive disk 202 to convert the rotation of the drive cylinder 102 into the rotation of the drive disk 202. It also releases the drive on the drive disk 202 when the rotation of the winding frame 604 is obstructed. The control mechanism includes a control ring 201 rotatably disposed within the housing 101 along its axis. The control ring 201 is connected to the drive cylinder 102. The drive disk 202 is rotatably disposed at the bottom of the control ring 201. A first ratchet disk 203 is disposed on the drive disk 202. The control mechanism also includes a drive block 501 and a torsion spring 502. One end of the drive block 501 is hinged to the control ring 201. The drive block 501 is engaged with the first ratchet disk 203. The contact surface between the drive block 501 and the first ratchet disk 203 is inclined. The torsion spring 502 is disposed at the hinge point between the drive block 501 and the control ring 201.

[0066] The drive cylinder 102 can be rotated to drive multiple control rings 201 to rotate simultaneously. During rotation, the control rings 201 drive the drive blocks 501 to follow. Under the action of the torsion spring 502, the drive blocks 501 are engaged with the first ratchet disc 203. The engagement of the drive blocks 501 and the first ratchet disc 203 drives the drive disc 202 to rotate with the control rings 201. During rotation, the drive disc 202, through a linkage mechanism, drives the winding frame 604 to rotate, simultaneously winding multiple sets of fixed tapes 605. When one set of fixed tapes 605 is wound to its limit and tensioned, the other sets of fixed tapes 605 are not tensioned. Continuing to rotate the drive cylinder 102 causes the drive blocks 501 corresponding to the tensioned set of fixed tapes 605 to disengage from the first ratchet disc 203 through the engagement of their inner inclined surfaces, compressing the torsion spring 502. This prevents the corresponding set of drive discs 202 from rotating, while the other sets of drive discs 202 can still rotate. This allows multiple sets of fixation straps 605 to be tightened sequentially to secure the hemostat to the patient's limb. It also adapts to different fixation positions and patient limbs of varying sizes. If the fixation straps 605 become loose during patient movement, the loose straps can be quickly rolled up without requiring flushing or reinstallation of the hemostat, thus improving the device's ease of use and applicability.

[0067] like Figure 3 , 5 As shown in Figures 6 and 7, in this embodiment, the drive cylinder 102 is slidably disposed within the housing 101 along its axis. A connecting frame 104 is provided on the drive cylinder 102. The connecting frame 104 is slidably disposed within the control ring 201 along its axis. An abutment post 105 is provided at the bottom of the connecting frame 104. When the connecting frame 104 slides, the abutment post 105 can abut against the drive block 501.

[0068] When all the fixing straps 605 are retracted and in a taut state, the housing 101 can be gripped and the drive cylinder 102 can be pressed to make the connecting frame 104 slide along its axis within the control ring 201. Then, the drive block 501 is pressed down by the abutment post 105, so that the drive block 501 is firmly locked onto the first ratchet disc 203. Then, the drive cylinder 102 is rotated to make the multiple fixing straps 605 tighten further at the same time to improve the fixing effect.

[0069] like Figure 2 , 5As shown in Figures 6 and 8, in this embodiment, a locking mechanism connected to the drive disk 202 is provided inside the housing 101, which can lock the rotation of the drive disk 202. The locking mechanism includes a second ratchet disc 204 disposed on the drive disc 202 on the opposite side of the first ratchet disc 203. The second ratchet disc 204 and the first ratchet disc 203 are symmetrically arranged along the drive disc 202. A third ratchet disc 301 is disposed inside the housing 101. The third ratchet disc 301 meshes with the second ratchet disc 204. A connecting sleeve 302 is disposed on the third ratchet disc 301. A mounting post 401 is disposed inside the housing 101. Multiple sets of alternating first limiting blocks 402 and second limiting blocks 403 are disposed on the mounting post 401. The connecting sleeve 302 is slidably sleeved on the mounting post 401 and is located between one set of first limiting blocks 402 and second limiting blocks 403. One end of the second elastic member 404 abuts against the second limiting block 403, and the other end abuts against the connecting sleeve 302.

[0070] During the rotation of the drive disc 202, the third ratchet disc 301 is pushed to slide along the axis of the mounting post 401 by the inclined surface of the second ratchet disc 204. Under the action of the second elastic element 404, the third ratchet disc 301 is always locked on the second ratchet disc 204 to lock the movement of the second ratchet disc 204 in one direction, thereby preventing the drive disc 202 from reversing and causing the fixing belt 605 to loosen.

[0071] The mounting post 401 is slidably disposed inside the housing 101 along its axis, with one end extending out of the housing 101. A third elastic element 405 is disposed between the other end of the mounting post 401 and the housing 101, and the elastic force of the third elastic element 405 is greater than that of the second elastic element 404. Because the elastic force of the third elastic element 405 is greater than that of the second elastic element 404, when the third ratchet disc 301 slides, it only causes the mounting post 401 to slide slightly or not slide at all, thus not affecting the locking of the third ratchet disc 301 to the drive disc 202. When it is necessary to quickly contact the artery for compression, the mounting post 401 can be pressed to slide and compress the third elastic element 405 by pressing the end of the mounting post 401 that extends outside the housing 101. When the mounting post 401 slides, it pushes multiple sets of third ratchet discs 301 to slide and disengage from the second ratchet disc 204 through the cooperation of the first limiting block 402 and the connecting sleeve 302, so as to quickly release the locking of multiple sets of drive discs 202, thereby loosening multiple sets of fixing straps 605 to quickly release the compression of the artery.

[0072] Specific usage and beneficial effects of the present invention:

[0073] In use, the hemostat is secured to the patient's limb using the fixing strap 605, and pressure is applied to the puncture site using the compression pad 107 to stop the bleeding. After the compression pad 107 is secured, the drive cylinder 102 rotates. During rotation, the drive cylinder 102 controls multiple winding frames 604 to rotate via multiple drive units. The winding frames 604 tighten the fixing straps 605 during rotation, causing multiple fixing straps 605 to retract simultaneously to secure the hemostat to the patient's limb. When one of the fixing straps 605 is tightened to its limit and cannot be tightened further, the winding is automatically released. The drive of the frame 604 allows multiple sets of fixing straps 605 to be tightened sequentially according to their binding positions. By tightening the multiple sets of fixing straps 605 to different ranges, the hemostat is firmly fixed to the patient's limb, making it convenient for patients of different body types to use and move around without significantly restricting their movement. Furthermore, if a set of fixing straps 605 becomes loose during activity, the drive cylinder 102 can be rotated to control the tightening of that set of fixing straps 605, without further tightening of the already tightened fixing straps 605. This effectively solves many inconveniences that exist in the use of existing hemostats.

[0074] When this hemostat is in use, the rotation of the drive cylinder 102 is driven by the torsion spring 502, the drive block 501, and the first ratchet disc 203. The rotation of the drive disc 202 is locked by the cooperation of the second ratchet disc 204 and the third ratchet disc 301. When the corresponding set of fixing straps 605 is retracted to its limit position, the drive cylinder 102 continues to rotate, and the inclined surface of the drive block 501 causes the drive block 501 to disengage from the first ratchet disc 203, thereby... This prevents the corresponding drive disc 202 and winding frame 604 from rotating. After all the sets of fixing straps 605 have been retracted to their limit positions, the contact post 105 can be made to abut against the drive block 501 by holding the housing 101 and pressing the drive cylinder 102. This causes the drive block 501 to be locked onto the first ratchet disc 203 again. The drive cylinder 102 is then rotated to make the drive disc 202 rotate slightly to further tighten the retracted fixing straps 605, thereby improving the fixing effect of the hemostat.

[0075] After use, the hemostat can be compressed by pressing the mounting post 401 into the housing 101 to compress the third elastic element 405. During the sliding process, the mounting post 401, through the cooperation of multiple sets of first limiting blocks 402, drives multiple sets of third ratchet discs 301 to slide and disengage from multiple sets of second ratchet discs 204 at the same time, so as to quickly release the position lock of multiple sets of drive discs 202, thereby releasing the lock of the fixing band 605, so that multiple sets of fixing bands 605 are relaxed at the same time, so as to facilitate the quick release of pressure on the patient's artery in emergency situations, effectively improving the convenience and safety of the hemostat during use.

[0076] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. An arterial compression hemostat, characterized in that, Including: Casing (101); The winding frame (604) is provided in multiple sets, all of which are rotatably disposed inside the housing (101). The winding frame (604) is provided with fixing straps (605), and the ends of the multiple sets of fixing straps (605) are connected by buckles (606). A drive cylinder (102) is rotatably disposed within the housing (101) along its axis, and an adjusting wheel (103) is provided at its end. A pressure pad (107) is provided at the end of the drive cylinder (102); and The drive unit is provided with the same number of sets as the fixed belts (605), and all of them are provided on the drive cylinder (102) and connected to one of the fixed belts (605) to convert the rotation of the drive cylinder (102) into driving the rotation of the winding frame (604), and release the drive of the winding frame (604) when the fixed belts (605) are tensioned; The driving unit includes: A drive disk (202) is rotatably disposed within the housing (101) along its axis; A linkage mechanism is provided on the drive disk (202) and connected to the winding frame (604) to convert the rotation of the drive disk (202) into the rotation of the winding frame (604); A control mechanism, disposed on the drive cylinder (102) and connected to the drive disc (202), converts the rotation of the drive cylinder (102) into the rotation of the drive disc (202), and releases the drive of the drive disc (202) when the rotation of the winding frame (604) is obstructed; and A locking mechanism is disposed within the housing (101) and connected to the drive disk (202) to lock the rotation of the drive disk (202); The control mechanism includes: A control ring (201) is rotatably disposed within the housing (101) along its axis and connected to the drive cylinder (102). The drive disk (202) is rotatably disposed at the bottom of the control ring (201). A first ratchet disc (203) is disposed on the drive disc (202); A drive block (501) is hinged at one end to the control ring (201). The drive block (501) is mounted on the first ratchet disc (203), and the contact surface between the drive block (501) and the first ratchet disc (203) is an inclined surface. Torsion spring (502) is provided at the hinge point between the drive block (501) and the control ring (201); The locking mechanism includes: The second ratchet disc (204) is disposed on the opposite side of the first ratchet disc (203) on the drive disc (202) and is arranged symmetrically with the first ratchet disc (203) along the drive disc (202); The third ratchet disc (301) is slidably disposed in the housing (101) along its axis and engages with the second ratchet disc (204). A connecting sleeve (302) is provided on the third ratchet disc (301). A mounting post (401) is disposed within the housing (101). The mounting post (401) has multiple sets of alternately arranged first limiting blocks (402) and second limiting blocks (403). The connecting sleeve (302) is slidably sleeved on the mounting post (401) and located between one set of the first limiting blocks (402) and the second limiting blocks (403). The second elastic element (404) abuts against the second limiting block (403) at one end and against the connecting sleeve (302) at the other end.

2. The arterial compression hemostat according to claim 1, characterized in that: The drive cylinder (102) is provided with an adjustment mechanism connected to the pressure pad (107), which adjusts the downward pressure on the pressure pad (107) through the adjustment mechanism.

3. The arterial compression hemostat according to claim 2, characterized in that, The adjustment mechanism includes: A threaded knob (108) is screwed onto one end of the drive cylinder (102): A connecting column (106) is slidably disposed at the other end of the drive cylinder (102) along the axis of the drive cylinder (102), and is rotatably connected to the pressure pad (107); and The first elastic element (109) is disposed inside the drive cylinder (102), and its two ends abut against the threaded knob (108) and the connecting post (106) respectively.

4. The arterial compression hemostat according to claim 1, characterized in that, The linkage mechanism includes: The first gear (205) is disposed on the drive disk (202); The second gear (601) is rotatably disposed within the housing (101) along its axis and meshes with the first gear (205). A first bevel gear (602) is coaxially mounted on the second gear (601). The second bevel gear (603) is disposed at the end of the winding frame (604) and meshes with the first bevel gear (602).

5. An arterial compression hemostat according to claim 1, characterized in that: The drive cylinder (102) is slidably disposed within the housing (101) along its axis. A connecting frame (104) is provided on the drive cylinder (102). The connecting frame (104) is slidably disposed within the control ring (201) along its axis. An abutting post (105) is provided at the bottom of the connecting frame (104). When the connecting frame (104) slides, the abutting post (105) can abut against the drive block (501).

6. The arterial compression hemostat according to claim 1, characterized in that: The mounting post (401) is slidably disposed inside the housing (101) along its axis, and one end of the post extends out of the housing (101). A third elastic element (405) is disposed between the other end of the mounting post (401) and the housing (101), and the elastic force of the third elastic element (405) is greater than that of the second elastic element (404).

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