A press hemostat for arteriovenous fistula

Abstract

This utility model discloses a pressure hemostat for arteriovenous fistulas, relating to the field of pressure hemostasis technology. It includes a fixing box with a strap on one side and an adhesive tape on the other. A fixing post is located inside the fixing box, with its top extending to the top of the box and fixing a pressure block. This utility model allows for quick positioning of the fixing box on the patient's wrist, forearm, or upper arm using the adhesive tape and a square ring, depending on the needs. Continuous pressure is then applied to the designated location using a pressure plate, autonomously completing the pressure hemostasis operation without the need for manual continuous pressure. This effectively replaces manual pressure hemostasis after dialysis. Furthermore, an absorbent cotton pad can be used to detect any leakage or oozing. If oozing occurs, the pad absorbs the blood, preventing splashing, and the pad changes color from white to red for easy detection.

Description

Technical Field

[0001] This utility model relates to the field of pressure hemostasis technology, specifically a pressure hemostatic device for arteriovenous fistulas. Background Technology

[0002] Arteriovenous fistula (AVF) is a vascular access that connects an artery and a vein through surgery. AVF anastomoses a peripheral vein with an artery, increasing venous blood flow and thickening the vessel wall, thus arterializing the peripheral vein. This surgical procedure aims to establish a vascular access that can withstand repeated punctures and has sufficient blood flow to meet the needs of hemodialysis. In patients with renal failure, especially those requiring long-term hemodialysis, AVF is the preferred vascular access. Its main function is to provide sufficient blood flow for hemodialysis, ensuring its effectiveness and safety. After dialysis, pressure is required to stop bleeding, and the pressure time varies from 10 to 30 minutes depending on the patient's condition. If manual pressure is applied throughout, it consumes a lot of manpower. Furthermore, if local bleeding occurs during compression with a bandage and is not detected promptly, it can cause fibrosis of the blood vessel and surrounding tissues, leading to thrombosis and fistula stenosis. Therefore, this case study addresses these issues and requires in-depth research. Utility Model Content

[0003] The purpose of this invention is to provide a pressure hemostat for arteriovenous fistulas, in order to solve the problem mentioned in the background art that it is impossible for medical staff to independently apply pressure to stop bleeding in arteriovenous fistulas.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pressure hemostat for arteriovenous fistulas, comprising a fixing box, a strap installed on one side of the fixing box, and an adhesive tape installed on the other side of the fixing box, a fixing post provided inside the fixing box, the top of the fixing post extending to the top of the fixing box and fixed with a pressing block, a pressure plate fixed at the bottom of the fixing post, multiple blocking plates vertically and equally spaced on both sides inside the fixing box, the blocking plates having a trapezoidal cross-sectional shape, flexible strips fixed on both sides of the fixing post, and a ball fixed at one end of each flexible strip.

[0005] Preferably, baffles are fixed to the bottom of both sides inside the fixing box, and the bottom of the baffles and the top of the pressing plate are on the same horizontal plane.

[0006] Preferably, the front and rear ends of the fixing column are provided with multiple vertical grooves, and the front and rear ends of the fixing box are each provided with a corresponding number of fixing blocks, and one end of each fixing block extends into the interior of the corresponding groove, and the fixing block and the groove form a sliding fit.

[0007] Preferably, the bottom ends of the straps and adhesive tapes are on the same horizontal plane as the bottom end of the fixing box, and the interior of the straps and adhesive tapes has multiple vertical ventilation holes.

[0008] Preferably, the top of both the strap and the adhesive tape is fitted with absorbent cotton pads, and the two absorbent cotton pads are symmetrically distributed about the fixing box.

[0009] Preferably, a square ring is fixed to one side of the top of the adhesive tape to allow the strap to pass through, a hook and loop fastener is embedded on one side of the top of the strap, a hook and loop fastener hook is provided on one side of the hook and loop fastener, and the hook and loop fastener hook is installed at the top of the strap.

[0010] Preferably, an adhesive strip is embedded at the bottom end of the adhesive tape, and a dustproof patch is adhered to the bottom end of the adhesive strip.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By attaching the adhesive tape to the patient's limb and then using a bandage and square ring for binding, the fixation box can be quickly positioned on the patient's wrist, forearm, or upper arm, thus adapting to fistulas in different locations.

[0013] 2. By pressing the pressing block, the pressure plate is driven to press on the designated position, and the blocking plate restricts the movement of the fixed column by limiting the ball, so that the pressure plate can continuously apply pressure, thereby completing the pressure hemostasis operation autonomously without the need for continuous manual pressing;

[0014] 3. Use absorbent cotton pads to check for any leakage or seepage. If there is seepage, the pad will fully absorb the blood to prevent splattering. At the same time, the color of the pad will change from white to red to facilitate timely detection. Attached Figure Description

[0015] Figure 1 This is a top view of the structure of this utility model;

[0016] Figure 2 This is a front view structural diagram of the present utility model;

[0017] Figure 3 This is a front cross-sectional view of the assembly of the fixing box and fixing column of this utility model;

[0018] Figure 4 This is a top view of the fixing box structure of this utility model.

[0019] In the image: 1. Hook and loop fastener side; 2. Loop and loop fastener side; 3. Strap; 4. Pressing block; 5. Fixing box; 6. Square ring; 7. Absorbent pad; 8. Fixing post; 9. Sphere; 10. Barrier plate; 11. Groove; 12. Pressure plate; 13. Baffle; 14. Flexible strip; 15. Fixing block; 16. Adhesive tape Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Please refer to Figure 1-4 A pressure hemostat for arteriovenous fistula includes a fixing box 5, a strap 3 installed on one side of the fixing box 5, and an adhesive tape 16 installed on the other side of the fixing box 5. A fixing post 8 is provided inside the fixing box 5, and the top of the fixing post 8 extends to the top of the fixing box 5 and is fixed with a pressing block 4. A compression plate 12 is fixed at the bottom of the fixing post 8. Multiple blocking plates 10 are vertically fixed at equal intervals on both sides inside the fixing box 5, and the cross-sectional shape of the blocking plate 10 is trapezoidal. Flexible strips 14 are fixed on both sides of the fixing post 8, and a ball 9 is fixed at one end of each flexible strip 14.

[0022] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when using this device, the fixing box 5 is placed in a suitable position and tied to the corresponding position of the patient's limb with the help of the strap 3 and adhesive tape 16. Then, the pressing block 4 is pressed, which moves the fixing column 8 and the compression plate 12 closer to the patient's skin. During this process, the top inclined surface of the blocking plate 10 squeezes the ball 9, causing the flexible strip 14 to bend. When the ball 9 passes the corresponding blocking plate 10, the flexible strip 14 can return to its original position. This structure ensures that the pressing block 4 can only move in one direction and cannot rebound. Therefore, as the pressing block 4 is pressed, the compression plate 12 can press on the patient's skin with a certain pressure to perform the hemostasis operation.

[0023] Baffles 13 are fixed to the bottom of both sides inside the fixed box 5, and the bottom of the baffles 13 and the top of the pressure plate 12 are on the same horizontal plane.

[0024] Specifically, such as Figure 3 As shown, the baffle 13 can determine the initial position of the pressure plate 12 and also help prevent the fixing column 8 from moving down too much.

[0025] Multiple grooves 11 are vertically provided at both the front and rear ends of the fixing column 8. A corresponding number of fixing blocks 15 are installed at both the front and rear ends of the fixing box 5, and one end of each fixing block 15 extends into the interior of the corresponding groove 11. The fixing block 15 and the groove 11 form a sliding fit.

[0026] Specifically, such as Figure 3 and Figure 4 As shown, the movement of the fixed column 8 is guided by the cooperation of the fixed block 15 and the groove 11, making the movement of the fixed column 8 more stable.

[0027] The bottom ends of the strap 3 and the adhesive tape 16 are on the same horizontal plane as the bottom end of the fixing box 5, and the interior of the strap 3 and the adhesive tape 16 are vertically perforated with multiple ventilation holes.

[0028] Specifically, such as Figure 2 As shown, this design ensures that the fixation box 5 does not press against the patient's skin with high pressure, while ensuring breathability and improving comfort during use.

[0029] The top of both the strap 3 and the adhesive tape 16 is equipped with absorbent cotton pads 7, and the two absorbent cotton pads 7 are symmetrically distributed about the fixing box 5.

[0030] Specifically, such as Figure 1 and Figure 2 As shown, during use, if there is bleeding, the absorbent cotton pad 7 will fully absorb the blood to prevent it from splashing. At the same time, the color of the absorbent cotton pad 7 will change from white to red to make it easier for the patient to notice, so that the doctor can leave with peace of mind.

[0031] A square ring 6 is fixed to one side of the top of the adhesive tape 16, allowing the strap 3 to pass through. A hook and loop fastener 2 is embedded in one side of the top of the strap 3. A hook and loop fastener hook 1 is provided on one side of the hook and loop fastener 2, and the hook and loop fastener hook 1 is installed at the top of the strap 3.

[0032] The bottom end of the adhesive tape 16 is embedded with an adhesive strip, and the bottom end of the adhesive strip is attached with a dustproof patch.

[0033] Specifically, such as Figure 1 and Figure 2 As shown, when using this device, after the position of the fixing box 5 is determined, first peel off the dustproof patch at the adhesive tape 16, and then stick the adhesive strip to the patient's skin to complete the adhesion of the adhesive tape 16. The structure and principle here are similar to a band-aid. After the adhesive tape 16 is attached, the position of the square ring 6 is determined. At this time, wrap the strap 3 around the limb and pass it through the inside of the square ring 6. After passing through, fold the strap 3 back and pull it to a suitable length so that the fixing box 5 is attached to the patient's skin with appropriate force. Then, stick the hook side 1 of the Velcro to the corresponding position of the hook side 2 to complete the wearing and fixing of the device.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A compression hemostat for an internal arteriovenous fistula, comprising a fixing box (5), characterized in that: A strap (3) is installed on one side of the fixing box (5), and an adhesive tape (16) is installed on the other side of the fixing box (5). A fixing post (8) is provided inside the fixing box (5), and the top of the fixing post (8) extends to the top of the fixing box (5) and is fixed with a pressing block (4). A pressure plate (12) is fixed at the bottom of the fixing post (8). Multiple barrier plates (10) are fixed vertically at equal intervals on both sides inside the fixing box (5), and the cross-sectional shape of the barrier plate (10) is trapezoidal. Flexible strips (14) are fixed on both sides of the fixing post (8), and a ball (9) is fixed at one end of each flexible strip (14).

2. The compression hemostat for an internal arteriovenous fistula according to claim 1, characterized in that: The bottom of both sides of the fixed box (5) is fixed with baffles (13), and the bottom of the baffles (13) and the top of the pressure plate (12) are on the same horizontal plane.

3. The compression hemostat for an internal arteriovenous fistula according to claim 1, characterized in that: The front and rear ends of the fixed column (8) are provided with multiple grooves (11) vertically. The front and rear ends of the fixed box (5) are each provided with a corresponding number of fixing blocks (15), and one end of each fixing block (15) extends into the interior of the corresponding groove (11). The fixing block (15) and the groove (11) form a sliding fit.

4. The compression hemostat for an internal arteriovenous fistula according to claim 1, characterized in that: The bottom ends of the strap (3) and the adhesive tape (16) are on the same horizontal plane as the bottom end of the fixing box (5), and the interior of the strap (3) and the adhesive tape (16) are vertically perforated with multiple ventilation holes.

5. The compression hemostat for internal arteriovenous fistula according to claim 1, characterized in that: The top ends of the strap (3) and the adhesive tape (16) are each equipped with absorbent cotton pads (7), and the two absorbent cotton pads (7) are symmetrically distributed about the fixing box (5).

6. The compression hemostat for an internal arteriovenous fistula according to claim 1, characterized in that: One side of the top of the adhesive tape (16) is fixed with a square ring (6) that allows the strap (3) to pass through. One side of the top of the strap (3) is embedded with a hook and loop fastener (2). One side of the hook and loop fastener (2) is provided with a hook and loop hook fastener (1), and the hook and loop hook fastener (1) is installed at the top of the strap (3).

7. The compression hemostat for an internal arteriovenous fistula according to claim 1, characterized in that: The bottom end of the adhesive tape (16) is embedded with an adhesive strip, and the bottom end of the adhesive strip is adhered with a dustproof patch.

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