Hemodialysis tourniquet

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a hemodialysis tourniquet which comprises a placing ring, a sliding groove is formed in the placing ring, arc-shaped racks are connected to the two sides of the interior of the sliding groove in a sliding mode, rotating shafts are rotatably connected to the lower portions of the inner sides of the two arc-shaped racks, and a tourniquet is arranged between the two rotating shafts. A mounting plate is fixedly connected to the bottom of the placing ring, a pressing plate is arranged below the mounting plate, a transmission assembly is arranged outside the placing ring, and a clamping assembly is arranged at the bottom of the mounting plate; the utility model provides a blood dialysis tourniquet which solves the problems that in the prior art, when a tourniquet is used for controlling blood flow of a patient, workers need to manually wind the tourniquet, operation is tedious, the automation degree is low, the labor burden of medical workers is increased, and the comfort of the patient is insufficient.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically a hemodialysis pulse pressure device. Background Technology

[0002] Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. It involves draining blood from the body to the outside and then returning the purified blood. To facilitate hemodialysis, a pulse oximeter is often used.

[0003] In existing technologies, when using a tourniquet to control blood flow in patients, staff need to manually wrap the tourniquet, which is cumbersome, has a low degree of automation, increases the workload of medical staff, and is not comfortable for patients. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the main objective of this utility model is to provide a hemodialysis pulse pressure device.

[0005] The technical solution of this utility model is as follows: a hemodialysis pulse pressure device includes a placement ring, the inside of which is provided with a sliding groove, and arc-shaped toothed racks are slidably connected to both sides of the inside of the sliding groove. Rotating shafts are rotatably connected to the lower inner sides of the two arc-shaped toothed racks, and a pulse pressure belt is provided between the two rotating shafts. A mounting plate is fixedly connected to the bottom of the placement ring, and a pressure plate is provided below the mounting plate. A transmission assembly is provided on the outside of the placement ring, and a clamping assembly is provided at the bottom of the mounting plate.

[0006] In a preferred embodiment, the transmission assembly includes a motor, which is symmetrically and fixedly connected to the top of the placement ring via a mounting block. The output ends of both motors are fixedly connected to worm gears. Gears are rotatably connected to both sides of the top of the placement ring. The two gears extend into the interior of the placement ring and mesh with corresponding arc-shaped racks. Worm gears are rotatably connected to the exterior of both gears via rotating rods. The worm gears mesh with the corresponding worm gears.

[0007] In a preferred embodiment, the clamping assembly includes a limiting plate, which is fixedly connected to the bottom side of the mounting plate. Limiting rods are fixedly connected to both sides of the inner side of the limiting plate. The inner side of the pressure plate is slidably connected to the outside of the limiting rods. A bolt is rotatably connected to the inner side of the pressure plate, and the top of the bolt is threaded into the interior of the mounting plate.

[0008] In a preferred embodiment, the bottom of the pressure band is fixedly connected with Velcro, and an external sponge is attached to the bottom end of the pressure band via Velcro.

[0009] In a preferred embodiment, a first support pad is fixedly connected to the top of the mounting plate near the placement ring, and a second support pad is fixedly connected inside the placement ring and between the two grooves.

[0010] In a preferred embodiment, a rotating wheel is fixedly connected to the bottom of the bolt, the outer surface of the rotating wheel is provided with anti-slip texture, the motor is electrically connected to an external controller, and the pressure belt is made of elastic band material.

[0011] The beneficial effects of this utility model are as follows:

[0012] This device has a simple structure and is easy to operate. Staff can quickly control two arc-shaped racks to move the tourniquet downwards and tighten it on the patient's arm where hemostasis is needed, thereby achieving the purpose of compressing the vein and restricting blood flow. This replaces the manual operation of medical staff to tighten the tourniquet and restrict blood flow on the patient's arm, which not only improves the ease of operation but also reduces the workload of medical staff. In addition, this device can be installed on the side of the bed through the pressure plate, which improves the stability during use. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a bottom-view perspective view of the present invention;

[0015] Figure 2 This is a side perspective view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the ring placement in this utility model;

[0017] Figure 4 This is a bottom sectional view of the ring in this utility model;

[0018] Figure 5 This is a cross-sectional view of the mounting plate in this utility model;

[0019] Figure 6 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 7 For the present utility model Figure 3 Enlarged view of section B in the middle.

[0021] In the diagram: 1. Placement ring; 2. Arc-shaped rack; 3. Rotating shaft; 4. Pressure belt; 5. Mounting plate; 6. Pressure plate; 7. Motor; 8. Worm gear; 9. Gear; 10. Worm wheel; 11. Velcro; 12. Slide groove; 13. Limiting plate; 14. Bolt; 15. First support pad; 16. Second support pad. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figure 1-7 A hemodialysis pressure device includes a placement ring 1, a groove 12 inside the placement ring 1, and arc-shaped racks 2 slidably connected to both sides of the groove 12. A rotating shaft 3 is rotatably connected to the lower inner side of each of the two arc-shaped racks 2. A pressure band 4 is provided between the two rotating shafts 3. A mounting plate 5 is fixedly connected to the bottom of the placement ring 1. A pressure plate 6 is provided below the mounting plate 5. A transmission assembly is provided on the outside of the placement ring 1. A clamping assembly is provided at the bottom of the mounting plate 5.

[0024] Specifically, the transmission assembly includes a motor 7, which is symmetrically fixed to the top of the placement ring 1 via a mounting block. Worms 8 are fixedly connected to the output ends of both motors 7. Gears 9 are rotatably connected to both sides of the top of the placement ring 1. The two gears 9 extend into the interior of the placement ring 1 and mesh with corresponding arc-shaped racks 2. Worm wheels 10 are rotatably connected to the exterior of both gears 9 via rotating rods. The worm wheels 10 mesh with the corresponding worms 8. The clamping assembly includes a limiting plate 13, which is fixedly connected to the bottom side of the mounting plate 5. Limiting rods are fixedly connected to both sides of the interior of the limiting plate 13. A pressure plate 6 is slidably connected to the exterior of the limiting rods on one side of its interior. A bolt 14 is rotatably connected to the interior of the pressure plate 6, with the top of the bolt 14 threadedly connected to the interior of the mounting plate 5.

[0025] With the above technical solution, when using this device, first place the mounting plate 5 close to the bed board so that the pressure plate 6 is below the bed board. Then, manually rotate the wheel to drive the bolt 14 to rotate. The bolt 14, through its threaded connection with the mounting plate 5, drives the pressure plate 6 to move upward until it clamps the bed board. This allows the device to be installed on one side of the hospital bed, improving stability during use. Then, the patient inserts their arm into the placement ring 1, and the second support pad 16 provides support to the bottom of the patient's arm, thereby improving comfort. Place the area requiring hemostasis below the tourniquet 4, and then attach the external sponge to the bottom of the tourniquet 4 using Velcro 11. Start the two motors 7 through the external controller, so that the output end of the motor 7 drives the corresponding worm gear 8 to rotate. The worm gear 8 then drives the corresponding worm wheel 10 and gear 9 to rotate through meshing. The two gears 9, through meshing, drive the corresponding arc-shaped rack 2 to slide downward inside the slide groove 12. When the device is moved, the pressure band 4 below the arc-shaped rack 2 moves downward until it is tightly attached to the patient's arm. Then, the arc-shaped racks 2 on both sides continue to move the pressure band 4 downward until it is tightly bound to the patient's arm, thus achieving the purpose of pressure on the pulse and restricting blood flow. This replaces the manual operation of medical staff to bind and restrict blood flow on the patient's arm, improving ease of operation and reducing the workload of medical staff. The device has a simple structure and is easy to operate. The operator can quickly control the two arc-shaped racks 2 to move the pressure band 4 downward and bind it to the area of ​​the patient's arm where hemostasis is needed, thereby achieving the purpose of pressure on the pulse and restricting blood flow. This replaces the manual operation of medical staff to bind and restrict blood flow on the patient's arm, improving ease of operation and reducing the workload of medical staff. In addition, the device can be installed on the side of the bed through the pressure plate 6, improving the stability during use.

[0026] Specifically, the bottom of the pressure band 4 is fixedly connected with Velcro 11, and the bottom end of the pressure band 4 is attached with an external sponge through Velcro 11. The top of the mounting plate 5 is fixedly connected with a first support pad 15 on the side near the placement ring 1, and the inside of the placement ring 1 and located between the two sliding grooves 12 is fixedly connected with a second support pad 16.

[0027] The above technical solution provides support for other parts of the patient's arm through the first support pad 15, further improving the comfort of use.

[0028] Specifically, a rotating wheel is fixedly connected to the bottom of bolt 14, and the outside of the rotating wheel is provided with anti-slip texture. Motor 7 is electrically connected to an external controller, and pressure belt 4 is made of elastic band material.

[0029] The above technical solution allows for quick and easy control of the two motors 7 by an external controller.

[0030] When using this device, first place the mounting plate 5 close to the bed board so that the pressure plate 6 is below the bed board. Then, manually rotate the wheel to rotate the bolt 14. The bolt 14, through its threaded connection with the mounting plate 5, moves the pressure plate 6 upward until it clamps the bed board. This allows the device to be installed on one side of the hospital bed, improving stability during use. Then, the patient inserts their arm into the placement ring 1. The second support pad 16 provides support to the bottom of the patient's arm, improving comfort. Place the area requiring hemostasis below the compression band 4. Then, attach the external sponge to the bottom of the compression band 4 using Velcro 11. Start the two motors 7 via the external controller. The output of the motors 7 drives the corresponding worm gear 8 to rotate. The worm gear 8, through meshing, drives the corresponding worm wheel 10 and gear 9 to rotate. The two gears 9, through meshing, drive the corresponding arc-shaped rack 2 to slide downward inside the slide groove 12, thus moving the compression band 4 below the arc-shaped rack 2 downward until the compression band 4 is tightly against the patient's hand. The device moves downwards along the arm, with the curved racks 2 on both sides driving the compression band 4 downwards until it is tightly bound to the patient's arm. This achieves the purpose of compression and restricting blood flow, replacing the manual operation required by medical staff. This not only improves ease of operation but also reduces the workload of medical staff. The device has a simple structure and is easy to operate. Staff can quickly control the two curved racks 2 to move the compression band 4 downwards and tighten it at the point on the patient's arm where hemostasis is needed, thus achieving the purpose of compression and restricting blood flow. This replaces the manual operation required by medical staff. This not only improves ease of operation but also reduces the workload of medical staff. Furthermore, the device can be installed on the side of the bed via the pressure plate 6, improving stability during use. The first support pad 15 provides support for other parts of the patient's arm, further improving comfort. The two motors 7 can be quickly controlled by staff via an external controller.

[0031] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hemodialysis pulse pressure device, comprising a placement ring (1), characterized in that, The placement ring (1) has a sliding groove (12) inside. Arc-shaped racks (2) are slidably connected to both sides of the sliding groove (12). Rotary shafts (3) are rotatably connected to the lower inner sides of the two arc-shaped racks (2). A pressure belt (4) is provided between the two rotating shafts (3). A mounting plate (5) is fixedly connected to the bottom of the placement ring (1). A pressure plate (6) is provided below the mounting plate (5). A transmission assembly is provided on the outside of the placement ring (1). A clamping assembly is provided at the bottom of the mounting plate (5).

2. The hemodialysis pulse pressure device according to claim 1, characterized in that, The transmission assembly includes a motor (7), which is symmetrically fixed to the top of the placement ring (1) via a mounting block. The output ends of the two motors (7) are fixedly connected to worm gears (8). Gears (9) are rotatably connected to both sides of the top of the placement ring (1). The two gears (9) extend into the interior of the placement ring (1) and mesh with the corresponding arc-shaped racks (2). The exterior of the two gears (9) is rotatably connected to worm wheels (10) via rotating rods. The worm wheels (10) mesh with the corresponding worm gears (8).

3. A hemodialysis pulse pressure device according to claim 2, characterized in that, The clamping assembly includes a limiting plate (13), which is fixedly connected to the bottom side of the mounting plate (5). Limiting rods are fixedly connected to both sides of the inner side of the limiting plate (13). The inner side of the pressure plate (6) is slidably connected to the outside of the limiting rods. A bolt (14) is rotatably connected to the inner side of the pressure plate (6). The top of the bolt (14) is threadedly connected to the inside of the mounting plate (5).

4. A hemodialysis pulse pressure device according to claim 3, characterized in that, The bottom of the pressure band (4) is fixedly connected with Velcro (11), and the bottom end of the pressure band (4) is attached with an external sponge through Velcro (11).

5. A hemodialysis pulse pressure device according to claim 4, characterized in that, A first support pad (15) is fixedly connected to the top of the mounting plate (5) on the side near the placement ring (1), and a second support pad (16) is fixedly connected inside the placement ring (1) and between the two slides (12).

6. A hemodialysis pulse pressure device according to claim 5, characterized in that, The bottom of the bolt (14) is fixedly connected to a rotating wheel, the outside of which is provided with anti-slip texture. The motor (7) is electrically connected to an external controller. The pressure belt (4) is made of elastic band material.

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