Hemodialysis fistula care hemostatic device

Abstract

The present application provides a kind of hemodialysis internal fistula nursing hemostasis device, comprising: adjusting box, adjusting box is fixedly installed with bandage;Lifting assembly, lifting assembly includes sleeve, screw and threaded sleeve, sleeve is rotatably arranged in adjusting box, screw is threadedly arranged in the small hole diameter inside of sleeve, threaded sleeve is threadedly arranged in the large hole diameter inside of sleeve, rotating sleeve can adjust screw and threaded sleeve move up and down, and the moving distance of screw is less than the moving distance of threaded sleeve;Pressing assembly, pressing assembly includes pressing block and pressing ring, pressing block and pressing ring are respectively fixedly installed in the lower end of screw and threaded sleeve, and pressing block is located in the inside of pressing ring.It can solve the technical problems that the pressure applied by the existing internal fistula hemostasis device is usually uniformly distributed in the covered area of pressing plate, which easily leads to the long-term unnecessary excessive compression of the normal blood vessel wall around the puncture point, significantly hinders the internal fistula blood flow, and increases the risk of thrombosis and internal fistula acute occlusion.

Description

Technical Field

[0001] This invention relates to the field of hemodialysis tourniquet technology, specifically to a hemostasis device for hemodialysis fistula care. Background Technology

[0002] In hemodialysis treatment, hemostasis at the arteriovenous fistula puncture site is crucial. Existing hemostasis devices typically use a bandage and a retractable pressure plate to compress the puncture area, and reduce the pressure after a certain period of time through a slow-release mechanism, in order to achieve both initial hemostasis and subsequent vascular protection.

[0003] However, this device has a fundamental design limitation: the applied pressure is evenly distributed within the area covered by the pressure plate, meaning the pressure at the puncture point is the same as that of the surrounding normal tissue and blood vessel segment. This uniform pressure pattern, in order to achieve effective hemostasis at the puncture point, forces the pressure across the entire compression surface to remain at a high level. This results in the normal blood vessel walls around the puncture point being subjected to unnecessary excessive pressure for a prolonged period, significantly hindering blood flow to the arteriovenous fistula and increasing the risk of thrombosis and acute fistula occlusion. Simultaneously, the uniform distribution of pressure may also make it difficult to precisely control the core pressure actually acting on the vascular rupture during decompression, posing a dual risk of insufficient decompression leading to continued vascular damage or excessive decompression causing rebleeding. Therefore, a hemostatic device for hemodialysis arteriovenous fistula care is provided to address these problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a hemostasis device for hemodialysis arteriovenous fistula care. This addresses the technical problem that existing arteriovenous fistula hemostasis devices typically apply pressure evenly distributed within the area covered by the pressure plate. This uniform pressure pattern, in order to achieve effective hemostasis at the puncture point, forces the pressure across the entire compression surface to remain at a high level. Consequently, the normal vessel walls around the puncture point are subjected to unnecessary excessive pressure for a long period, significantly hindering blood flow in the arteriovenous fistula and increasing the risk of thrombosis and acute occlusion of the fistula.

[0005] The technical solution adopted in this invention is a hemostasis device for hemodialysis fistula care, comprising: An adjustment box, wherein a strap is fixedly installed on the adjustment box; A lifting assembly includes a sleeve, a screw, and a threaded sleeve. The sleeve is rotatably mounted on the adjusting box. The screw is threaded inside the small diameter hole of the sleeve, and the threaded sleeve is threaded inside the large diameter hole of the sleeve. Rotating the sleeve can adjust the up-and-down movement of the screw and the threaded sleeve, and the movement distance of the screw is less than the movement distance of the threaded sleeve. The pressing assembly includes a pressing block and a pressing ring. The pressing block and the pressing ring are respectively fixedly installed on the lower end of the screw and the threaded sleeve. The pressing block is located inside the pressing ring.

[0006] In a preferred embodiment, it further includes a fixed disk, a drive assembly, a transmission assembly, and an adjustment assembly, wherein the fixed disk is fixedly installed inside the adjustment box; The transmission assembly includes a transmission wheel and a transmission disc. The transmission wheel is rotatably disposed inside the adjustment box. When the drive assembly is activated, it can drive the transmission wheel to rotate. The transmission disc is rotatably disposed on the fixed disc. The transmission disc is connected to the sleeve in a transmission connection. The transmission wheel can periodically drive the transmission disc to rotate through the adjustment assembly.

[0007] In a preferred embodiment, the adjustment component includes: Two transmission blocks are provided, both of which are spring-loaded on the inner side of the transmission disk. The transmission disk has two sliding grooves, and the transmission blocks are slidably connected to the sliding grooves. The inner side of the fixed disk has a trapezoidal slot, and one side of the transmission block is shaped like a trapezoid that can be inserted into the trapezoidal slot. An adjusting block is fixedly disposed on the outside of the transmission wheel, and the adjusting block can push the transmission block to make the transmission disc rotate.

[0008] In a preferred embodiment, the driving component includes: The mounting box is fixedly installed on the adjustment box; The drive motor is fixedly installed inside the mounting box; The speed reducer is fixedly installed inside the mounting box and between the output end of the drive motor and the transmission wheel.

[0009] In a preferred embodiment, there are two sets of both the transmission disc and the adjustment assembly, which are symmetrically arranged on the upper and lower sides of the fixed disc and the transmission wheel.

[0010] In a preferred embodiment, a micro switch is installed in one of the grooves.

[0011] In a preferred embodiment, gears are fixedly provided on both the transmission disk and the outer side of the sleeve, and the two gears mesh with each other.

[0012] In a preferred embodiment, a silicone ring is installed between the pressing block and the pressing ring.

[0013] In a preferred embodiment, the strap is a Velcro cable tie.

[0014] As can be seen from the above technical solution, the beneficial technical effects of the present invention are as follows: This device employs a nested pressure block and pressure ring structure, utilizing the differentiated movement distances of the screw and threaded sleeve during sleeve rotation to achieve graded pressure control over the core area and surrounding tissues of the puncture site. When the sleeve rotates, the inner screw causes a small displacement of the pressure block, applying precise hemostatic pressure to the puncture site; while the outer threaded sleeve causes a larger displacement of the pressure ring, applying relatively gentle auxiliary pressure to the surrounding tissues. This design ensures sufficient pressure for hemostasis at the puncture site while significantly reducing the pressure on the surrounding normal vessel walls, avoiding the over-compression problem of traditional uniform compression modes. This reduces blood flow obstruction in the arteriovenous fistula, lowering the risk of thrombosis and acute fistula occlusion. Furthermore, graded pressure control allows for more precise adjustment of the core pressure at the puncture site during decompression, effectively balancing hemostasis and vascular protection needs, and reducing the potential complications caused by insufficient or excessive decompression. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the structure of a hemostasis device for hemodialysis fistula care according to the present invention; Figure 2 This is a schematic cross-sectional view of the present invention. Figure 1 ; Figure 3 This is a schematic cross-sectional view of the present invention. Figure 2 ; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is an exploded view of the transmission component and adjustment component in this invention. Figure 1 ; Figure 6 This is an exploded view of the transmission component and adjustment component in this invention. Figure 2 ; Figure label: Adjustment box 1, strap 11, sleeve 12, screw 121, threaded sleeve 122, pressing block 123, pressing ring 124, silicone ring 125, fixing plate 13, transmission wheel 131, trapezoidal slot 1311, transmission plate 132, transmission block 1321, slide groove 1322, adjustment block 133, micro switch 134, gear 135, mounting box 14. Detailed Implementation

[0017] 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.

[0018] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0019] like Figure 1 As shown, this embodiment provides a hemostasis device for hemodialysis fistula care, comprising: The adjustment box 1 is fixedly mounted with a strap 11, which is a Velcro strap; the Velcro strap can initially fix the adjustment box 1 to the user's arm. The adjustment box 1 can be equipped with an indicator light to show the current pressing status.

[0020] like Figure 2-3 As shown, the lifting assembly includes a sleeve 12, a screw 121, and a threaded sleeve 122. The sleeve 12 is rotatably mounted on the adjusting box 1. The screw 121 is threaded inside the small diameter hole of the sleeve 12, and the threaded sleeve 122 is threaded inside the large diameter hole of the sleeve 12. Rotating the sleeve 12 can adjust the up and down movement of the screw 121 and the threaded sleeve 122, and the movement distance of the screw 121 is less than the movement distance of the threaded sleeve 122. Rotating the sleeve 12 adjusts the height of the screw 121 and the threaded sleeve 122. Since the screw 121 and the threaded sleeve 122 are threadedly connected to the small and large diameter holes of the sleeve 12 respectively, and the screw 121 and the threaded sleeve 122 are slidably connected vertically, and the threaded sleeve 122 is slidably connected vertically to the adjusting box 1, when the sleeve 12 is rotated clockwise, the screw 121 and the threaded sleeve 122 move downwards simultaneously, and the movement distance of the screw 121 is less than the movement distance of the threaded sleeve 122. Different movement distances can be achieved by setting different thread pitches. For ease of understanding, it can be set as follows: for example, with the same width of threaded groove, the thread pitch of the screw 121 is less than the thread pitch of the threaded sleeve 122.

[0021] like Figure 3-4 As shown, the pressing assembly includes a pressing block 123 and a pressing ring 124. The pressing block 123 and the pressing ring 124 are respectively fixedly installed on the lower ends of the screw 121 and the threaded sleeve 122. The pressing block 123 is located inside the pressing ring 124, and a silicone ring 125 is installed between the pressing block 123 and the pressing ring 124. The silicone ring 125 ensures the sealing between the pressing block 123 and the pressing ring 124 and does not affect their interlocking movement.

[0022] In the initial position, the pressing ring 124 is located at the top of the lower side of the adjusting box 1, and the pressing block 123 is located below the pressing ring 124, with the two staggered in the initial position. When the screw 121 and the threaded sleeve 122 move down to the same horizontal height as the pressing block 123 and the pressing ring 124, the pressing block 123 and the pressing ring 124 can simultaneously press the puncture site and the area around the puncture point. After a period of time, slightly rotating the adjusting box 1 counterclockwise can move the screw 121 and the threaded sleeve 122 up a certain distance. However, since the screw 121 and the threaded sleeve 122 move different distances, the pressing ring 124 will reduce the pressure around the puncture point, and the pressing block 123 will slightly reduce the pressure on the puncture point. This achieves the effect of different internal and external pressure adjustment.

[0023] In one embodiment, such as Figure 2 , 5 As shown, it also includes a fixed disk 13, a drive assembly, a transmission assembly, and an adjustment assembly. The fixed disk 13 is fixedly installed inside the adjustment box 1. The transmission assembly includes a transmission wheel 131 and a transmission disc 132. The transmission wheel 131 is rotatably mounted inside the adjusting box 1. Activation of the drive assembly causes the transmission wheel 131 to rotate. The transmission disc 132 is rotatably mounted on a fixed disc 13 and is connected to the sleeve 2. Gears 135 are fixedly mounted on the outer sides of both the transmission disc 132 and the sleeve 12, and the two gears 135 mesh with each other. The transmission wheel 131 can periodically drive the transmission disc 132 to rotate via the adjusting assembly.

[0024] When the drive assembly is activated, it can drive the transmission wheel 131 to rotate, which in turn drives the transmission disc 132 to rotate periodically by the adjustment assembly. The rotation of the transmission disc 132 can drive the sleeve 2 to rotate, thereby adjusting the lifting and lowering of the screw 121 and the threaded sleeve 121.

[0025] In one embodiment, such as Figure 5-6As shown, the adjustment assembly includes: two transmission blocks 1321, both of which are spring-loaded inside the transmission disk 132. The transmission disk 132 has two sliding grooves 1322, and the transmission blocks 1321 are slidably connected to the sliding grooves 1322. A micro switch 134 is installed in one of the sliding grooves 1322. A trapezoidal slot 1311 is provided inside the fixed disk 13, and one side of the transmission block 1321 is trapezoidal enough to be inserted into the trapezoidal slot 1311. An adjustment block 133 is fixedly mounted on the outside of the transmission wheel 131, and the adjustment block 133 can push the transmission block 1321 to rotate the transmission disk 132. There are two sets of transmission disks 132 and adjustment assemblies, which are symmetrically arranged on the upper and lower sides of the fixed disk 13 and the transmission wheel 131. The number of sets of transmission disks 132 and adjustment assemblies and their symmetrical arrangement can enhance the operational stability of the equipment. The transmission block 1321 with micro switch 134 usually relies on the elasticity of the spring to abut against the inner side of the transmission disk 132. When the transmission block 1321 enters the trapezoidal slot 1311 on one side, the transmission block 1321 is pushed to one end of the slide groove 1322 by the elasticity of the spring and triggers the micro switch 134. The micro switch 134 can switch the power supply of the drive component on and off.

[0026] In this embodiment, two transmission blocks 1321 are symmetrically arranged inside the transmission disk 132. In the initial state, one side of the transmission block 1321 inside the slide groove 1322 with micro switch 134 is located inside the trapezoidal slot 1311, and the adjusting block 133 is located on the side of this transmission block 1321. When the drive assembly drives the transmission wheel 131 and the adjusting block 133 to rotate clockwise, the adjusting block 133 rotates half a turn without contacting the two transmission blocks 1321, so it will not transmit the height of the adjusting screw 121 and the threaded sleeve 122. Then, the adjusting block 133 pushes the transmission block 1321 that is not inside the trapezoidal slot 1311 to rotate clockwise. At this time, the transmission block 1321 with micro switch 134 will slide out of the trapezoidal slot 1311 by relying on the trapezoidal shape on one side. 311, the adjusting block 133 will push the transmission block 1321 to rotate half a turn until it enters the trapezoidal slot 1311, thereby driving the screw 121 and the threaded sleeve 122 to rise a certain distance. At this time, the adjusting block 133 will rotate half a turn again until the adjusting block 133 contacts the transmission block 1321 with the micro switch 134. The adjusting block 133 will push the transmission block 1321 with the micro switch 134 to move half a turn. During this process, the screw 121 and the threaded sleeve 122 will rise slowly again, thereby gradually releasing the pressure of the pressing block 123 and the pressing ring 124 on the person's arm, until the transmission block 1321 with the micro switch 134 enters the trapezoidal slot 1311, thereby triggering the micro switch 134 and disconnecting the power supply of the drive component.

[0027] When the adjusting block 133 pushes the transmission block 1321 equipped with the micro switch 134 and is about to enter the trapezoidal slot 1311, the trapezoidal end on one side of the transmission block 1321 first enters the trapezoidal slot 1311 through the elasticity of the spring, and moves in an alternating manner with the help of the trapezoidal shape of the transmission block 1321 and the inclined side of the trapezoidal slot 1311, so that the last distance does not rely on the pushing of the adjusting block 133, and there is a gap between the adjusting block 133 and the adjacent transmission block 1321. When the sleeve 12 is tightened clockwise, the sleeve 12 drives the transmission wheel 131 to rotate counterclockwise, thereby causing the transmission block 1321 equipped with the micro switch 134 to slide out of the trapezoidal slot 1311 and push the adjusting block 133 to rotate counterclockwise. Until the sleeve 12 drives the transmission disk 132 to rotate one revolution, the transmission block 1321 equipped with the micro switch 134 enters the trapezoidal slot 1311. The transmission block 1321 triggers the micro switch 134 to start the drive assembly, so that the adjusting block 133 is reset and starts initial idling.

[0028] The drive assembly includes: a mounting box 14, fixedly mounted on the adjusting box 1; a drive motor, fixedly mounted inside the mounting box 14; and a reducer, fixedly located inside the mounting box 14 and installed between the output end of the drive motor and the transmission wheel 131. Both the drive motor and the reducer can rotate in both directions, thus allowing the sleeve 12 to rotate clockwise for adjustment. The adjusting box 1 also contains a battery for powering the drive motor.

[0029] The reducer can adjust the transmitted rotational speed. Here, the reducer can convert the output of the drive motor into a time rate to achieve a timing effect. In short, the drive motor starts and drives the adjustment block 133 to drive the transmission block 1321 to move. According to the above settings, for example, the adjustment block 133 drives the transmission block 1321 to rotate half a turn, which is half an hour. Thus, the adjustment block 133 initially idles for half an hour to provide time for high-intensity pressing. Subsequently, the adjustment block 133 pushes the transmission block 1321 without the micro switch 134 to rotate for half an hour, thereby releasing part of the pressure of the pressing ring 124 and slightly releasing the pressure of the pressing block 123. Then, the adjustment block 133 idles again for half an hour to provide time for continuous pressing. Finally, the adjustment block 133 pushes the transmission block 1321 with the micro switch 134 to rotate for half an hour, and finally slowly releases the pressure of the pressing block 123 and the pressing ring 124 until the transmission block 1321 with the micro switch 134 enters the trapezoidal slot 1311 to trigger the micro switch 134 and disconnect the power supply to the drive motor.

[0030] The working principle of the embodiments is explained in detail below: First, the adjustment box 1 is fixed above the fistula puncture site on the patient's arm using the strap 11, ensuring that the pressure block 123 is aligned with the puncture point and the pressure ring 124 is located around the puncture point. In the initial state, the pressure block 123 is located below the pressure ring 124, and the two are staggered. At this time, one side of the transmission block 1321 with the micro switch 134 is located inside the trapezoidal slot 1311 of the fixing plate 13, and the adjustment block 133 is located on the side of this transmission block 1321.

[0031] When hemostasis pressure is required, the sleeve 12 can be manually rotated clockwise. The sleeve 12 drives the screw 121 and the threaded sleeve 122 to move downwards simultaneously via a threaded drive. Since the screw 121 is threadedly connected to the small-diameter part of the sleeve 12, and the threaded sleeve 122 is threadedly connected to the large-diameter part of the sleeve 12, and the movement distance of the screw 121 is less than the movement distance of the threaded sleeve 122, as the sleeve 12 rotates, the pressure block 123 and the pressure ring 124 gradually move downwards. When they reach the same horizontal height, the pressure block 123 applies direct pressure to the puncture point, and the pressure ring 124 applies pressure to the surrounding tissue of the puncture point. The silicone ring 125 acts as a seal and buffer between the two, preventing excessive friction and damage to the skin. During manual adjustment, the rotation of the sleeve 12 drives the transmission disc 132 to rotate via the gear 135, and the transmission block 1321 inside the transmission disc 132 moves accordingly. The transmission block 1321 equipped with micro switch 134 slides out of the trapezoidal slot 1311 and pushes the adjusting block 133 to rotate counterclockwise until the sleeve 12 drives the transmission disk 132 to rotate one revolution, so that the transmission block 1321 equipped with micro switch 134 re-enters the trapezoidal slot 1311, triggering the micro switch 134 to start the drive assembly, the drive motor starts to work, the adjusting block 133 resets and starts initial idling.

[0032] After the drive motor starts, it slows down through the reducer and drives the transmission wheel 131 to rotate slowly. The adjusting block 133 on the outside of the transmission wheel 131 rotates with it, first idling for half a turn. This process corresponds to the set high-intensity pressing time, such as half an hour. During this period, the screw 121 and the threaded sleeve 122 remain in their current positions, and the pressing block 123 and the pressing ring 124 apply continuous high-intensity pressure to the puncture site to quickly achieve hemostasis. After idling for half a turn, the adjusting block 133 begins to contact and push the transmission block 1321, which is not inside the trapezoidal slot 1311, to rotate clockwise. The transmission block 1321 rotates under the push of the adjusting block 133, and drives the transmission disc 132 to rotate clockwise for half a turn. The transmission disc 132 drives the sleeve 12 to rotate clockwise through the gear 135, and the sleeve 12 in turn drives the screw 121 and the threaded sleeve 122 to move upward. Because the screw 121 and the threaded sleeve 122 have different thread pitches, the threaded sleeve 122 moves upward a greater distance, which significantly reduces the pressure applied by the pressing ring 124 to the area around the puncture point. The pressure applied by the pressing block 123 to the puncture point is also slightly reduced, achieving initial adjustment of internal and external pressure and avoiding damage to local tissues caused by prolonged high-intensity pressing. After the transmission block 1321 rotates half a turn, its trapezoidal side enters the trapezoidal slot 1311 of the fixed plate 13 under the action of the spring. Then, the adjusting block 133 rotates half a turn again, corresponding to the continuous pressing time, such as half an hour. The pressing component maintains the current pressure state, allowing the hemostatic effect to be consolidated.

[0033] After idling for half a turn, the adjusting block 133 then pushes the transmission block 1321 with the micro switch 134. The transmission block 1321 rotates under the push of the adjusting block 133, causing the transmission disc 132 to continue rotating clockwise for half a turn. During this process, the sleeve 12 continues to rotate counterclockwise, the screw 121 and threaded sleeve 122 move further upward, and the pressure of the pressing block 123 and pressing ring 124 on the puncture site is gradually released. After the transmission block 1321 rotates half a turn, under the elastic force of the spring, its trapezoidal side begins to approach and enter the trapezoidal slot 1311. During the entry process, the trapezoidal end of one side of the transmission block 1321 first enters the trapezoidal slot 1311 through the elasticity of the spring, and moves alternately with the trapezoidal slot 1311 with the guidance of the trapezoidal hypotenuse, so that the last distance does not rely on the pushing of the adjusting block 133, and a gap is formed between the adjusting block 133 and the adjacent transmission block 1321. When the transmission block 1321 is fully inserted into the trapezoidal slot 1311, the micro switch 134 is triggered, disconnecting the power supply to the drive motor, and the entire hemostasis and pressure process automatically ends. At this time, the bandage 11 can be untied, the adjustment box 1 can be removed, and the hemostasis care of the hemodialysis fistula puncture site can be completed.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A hemostatic device for the care of hemodialysis fistulas, characterized in that, include: Adjustment box (1), the adjustment box (1) is fixedly installed with straps (11); The lifting assembly includes a sleeve (12), a screw (121), and a threaded sleeve (122). The sleeve (12) is rotatably mounted on the adjusting box (1). The screw (121) is threaded inside the small diameter hole of the sleeve (12), and the threaded sleeve (122) is threaded inside the large diameter hole of the sleeve (12). Rotating the sleeve (12) can adjust the screw (121) and the threaded sleeve (122) to move up and down, and the moving distance of the screw (121) is less than the moving distance of the threaded sleeve (122). The pressing assembly includes a pressing block (123) and a pressing ring (124). The pressing block (123) and the pressing ring (124) are respectively fixedly installed on the lower end of the screw (121) and the threaded sleeve (122). The pressing block (123) is located inside the pressing ring (124).

2. The hemostatic device for hemodialysis fistula care according to claim 1, characterized in that, It also includes a fixed disk (13), a drive assembly, a transmission assembly and an adjustment assembly, wherein the fixed disk (13) is fixedly installed inside the adjustment box (1); The transmission assembly includes a transmission wheel (131) and a transmission disc (132). The transmission wheel (131) is rotatably disposed inside the adjustment box (1). When the drive assembly is activated, it can drive the transmission wheel (131) to rotate. The transmission disc (132) is rotatably disposed on the fixed disc (13). The transmission disc (132) is connected to the sleeve (2) for transmission. The transmission wheel (131) can periodically drive the transmission disc (132) to rotate through the adjustment assembly.

3. The hemostatic device for hemodialysis fistula care according to claim 2, characterized in that, The adjustment component includes: Two transmission blocks (1321) are provided on the inner side of the transmission disk (132) by springs. The transmission disk (132) has two sliding grooves (1322). The transmission blocks (1321) are slidably connected to the sliding grooves (1322). The inner side of the fixed disk (13) is provided with a trapezoidal slot (1311). One side of the transmission block (1321) is a trapezoid that can be inserted into the trapezoidal slot (1311). Adjusting block (133) is fixedly disposed on the outside of the transmission wheel (131). The adjusting block (133) can push the transmission block (1321) to make the transmission disk (132) rotate.

4. The hemostatic device for hemodialysis fistula care according to claim 3, characterized in that, The driving component includes: Mounting box (14) is fixedly installed in the adjustment box (1); The drive motor is fixedly installed inside the mounting box (14); The reducer is fixed inside the mounting box (14) and installed between the output end of the drive motor and the transmission wheel (131).

5. The hemostatic device for hemodialysis fistula care according to claim 3, characterized in that, The number of transmission discs (132) and adjustment components are both two sets, which are symmetrically arranged on the upper and lower sides of the fixed disc (13) and the transmission wheel (131).

6. The hemostatic device for hemodialysis fistula care according to claim 3, characterized in that, A micro switch (134) is installed in the slide (1322) described above.

7. The hemostatic device for hemodialysis fistula care according to claim 3, characterized in that, Gears (135) are fixedly provided on the outer side of both the transmission disc (132) and the sleeve (12), and the two gears (135) mesh with each other.

8. The hemostatic device for hemodialysis fistula care according to claim 1, characterized in that, A silicone ring (125) is installed between the pressing block (123) and the pressing ring (124).

9. A hemostatic device for hemodialysis fistula care according to claim 1, characterized in that, The strap (11) is a Velcro strap.

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