Novel hemodialysis tourniquet

Abstract

The utility model relates to the technical field of tourniquets, and discloses a novel hemodialysis tourniquet which comprises a tourniquet body, a positive hook-and-loop fastener is fixedly connected to the outer surface of the tourniquet body, a negative hook-and-loop fastener is fixedly connected to the outer surface of the tourniquet body, an air inlet is formed in the bottom of the tourniquet body, and an air outlet is formed in the bottom of the tourniquet body. An air bag is arranged on the inner wall of the tourniquet body, an air pipe is arranged on the inner wall of the tourniquet body, a sensing device is arranged on the inner wall of the tourniquet body, a limiting piece is fixedly connected to one end of the tourniquet body, a through groove is formed in one side of the limiting piece, and a limiting device is arranged on the inner wall of the through groove. The lead screw drives the gear to rotate, the gear is meshed with the rack, the movable block can move in the movable groove, the movable block presses and limits the tourniquet body, and the tightness degree of the tourniquet can be better adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of compression cuffs, in particular to a novel hemodialysis compression cuff. Background Art

[0002] Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. It drains blood from the body to the outside of the body through a dialyzer composed of countless hollow fibers. During hemodialysis, a compression cuff is required to visualize the patient's blood flow.

[0003] Some devices on the market are generally equipped with airbags, air intake pipes, and balloons, so that when medical personnel use a compression cuff, they can squeeze the balloon to make the airbag contact with the skin to reduce pain and pressure. Secondly, they can perform puncture by observing the changes in the airbag.

[0004] However, in actual use, the above-mentioned device uses Velcro as a tightening device, and the Velcro may become loose during long-term use, resulting in the inability to show the patient's blood vessels; in view of this, we propose a new type of hemodialysis compression cuff. Utility Model Content

[0005] The purpose of the utility model is to provide a novel hemodialysis compression cuff to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel hemodialysis cuff, comprising a cuff body, the outer surface of the cuff body is fixedly connected with a positive Velcro, the outer surface of the cuff body is fixedly connected with a negative Velcro, an air inlet is arranged at the bottom of the cuff body, an air bag is arranged on the inner wall of the cuff body, a trachea is arranged on the inner wall of the cuff body, a sensing device is arranged on the inner wall of the cuff body, one end of the cuff body is fixedly connected with a limiting member, a through groove is opened on one side of the limiting member, a limiting device is arranged on the inner wall of the through groove, and the limiting device comprises;

[0007] A movable groove, wherein one side of the inner wall of the through groove is provided with a movable groove, a movable block is clamped inside the movable groove, one side of the inner wall of the movable groove is rotatably connected to a gear, and one side of the gear is fixedly connected to a screw rod;

[0008] A mounting groove is provided on one side of the movable block, and a rack is fixedly connected to one side of the inner wall of the mounting groove.

[0009] Preferably, the size of the gear is matched with the size of the mounting slot, the gear is arranged inside the mounting slot, and the gear is meshed with the rack, so that the rack can be driven to move when the gear rotates.

[0010] Preferably, the installation groove is communicated with the interior of the movable groove, and one end of the screw rod penetrates to the outer surface of the limiter, which can control the rotation of the gear when the screw rod rotates.

[0011] Preferably, the positive Velcro and the negative Velcro are located at the outer surface of the other end of the cuff body, and the positive Velcro and the negative Velcro are adapted to each other, which can make the positive Velcro and the negative Velcro fit better.

[0012] Preferably, a limiting groove is provided on one side of the movable block, the outer surface of the screw rod is threadedly connected to the limiting block, and the outer surface of the screw rod is threadedly connected to a tightening block.

[0013] Preferably, the size of the limiting block is matched with the size of the limiting groove, and the tightening block is arranged on the outer surface of the screw rod close to the outer surface of the limiting member.

[0014] Compared with the prior art, the utility model provides a new type of hemodialysis compression cuff, which has the following beneficial effects:

[0015] 1. In order to better adjust the tightness of the new hemodialysis cuff, the cuff body is worn on the outer surface of the patient's arm, and the end of the cuff body close to the positive Velcro passes through the through groove, and the positive Velcro is fitted with the negative Velcro, so that the cuff body can be well limited at the patient's arm, and then the screw rod is rotated, which drives the gear to rotate, and the gear is meshed with the rack, which can make the movable block move inside the movable groove, so that the movable block presses the cuff body to limit it, which can make the device better adjust the tightness.

[0016] 2. In order to prevent the tensioning device of the new hemodialysis compression belt from loosening, the screw rod will press the limit block downward to fit with the bottom of the inner wall of the limit groove when it rotates, so that the movable block is limited. The tightening block is then rotated to make the tightening block contact with the outer surface of the limit piece. This can limit the screw rod and prevent the limit device from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional left-view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the limit device of the utility model;

[0020] Figure 4 This is an enlarged structural diagram of area A of the utility model.

[0021] In the figure: 1. Compression cuff body; 2. Positive Velcro; 3. Negative Velcro; 4. Sensing device; 5. Air inlet; 6. Air bag; 7. Air tube; 8. Limiting piece; 9. Through groove; 10. Movable groove; 11. Movable block; 12. Mounting groove; 13. Rack; 14. Gear; 15. Screw; 16. Limiting groove; 17. Limiting block; 18. Tightening block. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a new type of hemodialysis cuff, including a cuff body 1, a positive Velcro 2 is fixedly connected to the outer surface of the cuff body 1, a negative Velcro 3 is fixedly connected to the outer surface of the cuff body 1, the positive Velcro 2 and the negative Velcro 3 are located at the outer surface of the other end of the cuff body 1, the positive Velcro 2 and the negative Velcro 3 are adapted to each other, which can make the positive Velcro 2 and the negative Velcro 3 fit better, an air inlet 5 is arranged at the bottom of the cuff body 1, an air bag 6 is arranged on the inner wall of the cuff body 1, a trachea 7 is arranged on the inner wall of the cuff body 1, a sensing device 4 is arranged on the inner wall of the cuff body 1, one end of the cuff body 1 is fixedly connected to a limiting member 8, a through groove 9 is opened on one side of the limiting member 8, a limiting device is arranged on the inner wall of the through groove 9, and the limiting device includes a movable groove 10, a movable block 11, a gear 14, a screw rod 15, a mounting groove 12 and a rack 13.

[0023] In the embodiment of the utility model, a movable groove 10 is provided on one side of the inner wall of the through groove 9, and a movable block 11 is clamped inside the movable groove 10. A limiting groove 16 is provided on one side of the movable block 11. The outer surface of the screw rod 15 is threadedly connected to the limiting block 17. The size of the limiting block 17 is adapted to the size of the limiting groove 16. The outer surface of the screw rod 15 is threadedly connected to a tightening block 18. The tightening block 18 is arranged on the outer surface of the screw rod 15 near the outer surface of the limiting member 8. The inner wall of the movable groove 10 is rotatably connected to a gear 14. The size of the gear 14 A gear 14 is arranged inside the mounting groove 12 to match the size of the mounting groove 12. The gear 14 is meshed with the rack 13, which can drive the rack 13 to move when the gear 14 rotates. A screw rod 15 is fixedly connected to one side of the gear 14, and one end of the screw rod 15 penetrates to the outer surface of the limit member 8, which can control the rotation of the gear 14 when the screw rod 15 rotates. A mounting groove 12 is opened on one side of the movable block 11, and the mounting groove 12 is communicated with the inside of the movable groove 10. A rack 13 is fixedly connected to one side of the inner wall of the mounting groove 12.

[0024] When the strap 1 is in use, the cuff body 1 is worn on the outer surface of the patient's arm, so that the end of the cuff body 1 close to the positive Velcro 2 passes through the through groove 9, and then the positive Velcro 2 is fitted with the negative Velcro 3, so that the cuff body 1 can be well limited at the patient's arm, and the screw rod 15 is rotated, which drives the gear 14 to rotate, and the gear 14 is meshed with the rack 13, which can make the movable block 11 move inside the movable groove 10, so that the movable block 11 presses the cuff body 1 to limit the position, which can make the device better adjust the tightness, and at the same time, when the screw rod 15 rotates, it will press the limit block 17 downward to fit the bottom of the inner wall of the limit groove 16, so that the movable block 11 is limited, and then the tightening block 18 is rotated to make the tightening block 18 contact with the outer surface of the limit member 8, which can limit the screw rod 15, so that the limit device will not loosen.

[0025] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A novel hemodialysis cuff, comprising a cuff body (1), the outer surface of the cuff body (1) being fixedly connected with a positive Velcro (2), the outer surface of the cuff body (1) being fixedly connected with a negative Velcro (3), the bottom of the cuff body (1) being provided with an air inlet (5), the inner wall of the cuff body (1) being provided with an air bag (6), the inner wall of the cuff body (1) being provided with a trachea (7), the inner wall of the cuff body (1) being provided with a sensing device (4), one end of the cuff body (1) being fixedly connected with a limiting member (8), one side of the limiting member (8) being provided with a through groove (9), characterized in that: A limiting device is provided on the inner wall of the through groove (9), and the limiting device comprises: A movable groove (10), wherein one side of the inner wall of the through groove (9) is provided with a movable groove (10), a movable block (11) is clamped inside the movable groove (10), one side of the inner wall of the movable groove (10) is rotatably connected to a gear (14), and one side of the gear (14) is fixedly connected to a screw rod (15); A mounting groove (12), wherein a mounting groove (12) is provided on one side of the movable block (11), and a rack (13) is fixedly connected to one side of an inner wall of the mounting groove (12).

2. A novel hemodialysis cuff according to claim 1, characterized in that: The size of the gear (14) is matched to the size of the installation groove (12); the gear (14) is arranged inside the installation groove (12); and the gear (14) is meshed with the rack (13).

3. A novel hemodialysis cuff according to claim 1, characterized in that: The installation groove (12) is communicated with the interior of the movable groove (10), and one end of the screw rod (15) penetrates to the outer surface of the limiting member (8).

4. A novel hemodialysis cuff according to claim 1, characterized in that: The positive Velcro (2) and the negative Velcro (3) are located on the outer surface of the other end of the compression cuff body (1), and the positive Velcro (2) and the negative Velcro (3) are adapted to each other.

5. The novel hemodialysis cuff according to claim 1, characterized in that: A limiting groove (16) is provided on one side of the movable block (11); the outer surface of the screw rod (15) is threadedly connected to a limiting block (17); and the outer surface of the screw rod (15) is threadedly connected to a tightening block (18).

6. A novel hemodialysis cuff according to claim 5, characterized in that: The size of the limiting block (17) is adapted to the size of the limiting groove (16), and the tightening block (18) is arranged on a side of the outer surface of the screw rod (15) close to the outer surface of the limiting member (8).

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