Puncture upper limb fixing band for blood purification

Abstract

The utility model relates to the technical field of medical assistance, and discloses a puncture upper limb fixing band for blood purification, which comprises a first supporting plate, a second supporting plate, a first connecting rod and a second connecting rod, bandages are installed on the side faces of the first supporting plate and the second supporting plate, and the bandages are connected through hook-and-loop fasteners. Adjusting assemblies are arranged on the first supporting plate and the second supporting plate. When the total length of the first supporting plate and the second supporting plate needs to be adjusted, adjustment can be carried out only by pressing a limiting column to be retracted into the second supporting plate and then pushing the second supporting plate, and when the position of a tying belt needs to be adjusted according to the position of a puncture needle, the tying belt only needs to be rotated to the side away from a limiting hook-and-loop fastener, and then the position of the tying belt is adjusted. The friction block outside the rotating shaft does not make contact with the friction plate, then the tying belt slides according to the position of the puncture needle, the tying belt is rotated to one side of the limiting hook-and-loop fastener and pasted through the hook-and-loop fastener, then the puncture needle is fixed through the hook-and-loop fastener at the top of the tying belt, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary technology, specifically a puncture upper limb fixation strap for blood purification. Background Technology

[0002] Blood purification, commonly known as dialysis, is a renal replacement therapy for patients with acute or chronic renal failure. It involves drawing blood from the body and passing it through a dialyzer composed of numerous hollow fibers. The blood exchanges substances with a solution containing electrolytes at similar concentrations to the body's own (dialysis fluid) through diffusion, ultrafiltration, adsorption, and convection within and outside the hollow fibers. This process removes metabolic waste, maintains electrolyte and acid-base balance, and removes excess water. The purified blood is then returned to the body.

[0003] Existing upper limb fixation straps for blood purification are prone to pulling on the puncture needle due to limb movement, which can easily cause the needle tip to stick to the wall or puncture a blood vessel, preventing normal blood purification. These straps also make it inconvenient for patients to adjust the angle of their arm, reducing comfort. In related technologies, such as the upper limb fixation strap disclosed in CN215503666U, the upper limb fixation strap for blood purification can better support the patient's upper limb and ensure comfort by adjusting the gas inside the airbag. Then, the patient's arm is fixed in place by flipping the Velcro forward. After the puncture, the needle is fixed with Velcro to prevent the patient from moving and affecting the needle's position. However, since different patients have different arm lengths and puncture locations, this device cannot adjust the fixation position according to the patient's arm length and puncture location, which has limitations and causes inconvenience. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a fixation strap for upper limb puncture during blood purification. This strap offers the advantages of ensuring patient comfort during fixation while being easily adjustable according to the patient's arm length and fixation position. It solves the problem that existing fixation straps for upper limb puncture during blood purification are not easily adjustable according to the patient's arm length and the fixation position of the puncture needle.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a puncture upper limb fixation strap for blood purification, comprising: a first support plate, to which a second support plate is slidably connected; straps are installed on the sides of the first and second support plates, and the straps are connected by Velcro; an adjustment assembly is provided on the first and second support plates; the adjustment assembly includes: a limiting post, which is installed on one side of the second support plate by a spring; a limiting hole with the same cross-sectional shape as the limiting post is opened on one side of the first support plate; a sliding seat is fixedly connected to one side of the top of the first support plate; a rotating shaft is movably connected to the outside of the sliding seat, and a friction block is provided on the outside of the rotating shaft; one end of a strap is fixedly connected to one side of the rotating shaft, and the other end of the strap is sewn with Velcro; a friction plate is fixedly connected to the top of the first support plate and below the sliding seat; a limiting Velcro is sewn on one side of the first support plate.

[0008] In some embodiments, a mounting assembly is provided on one side of the first tray; the mounting assembly includes: a mounting bracket, fixedly connected to one side of the first tray; a pressure plate is slidably connected inside the mounting bracket; a threaded rod is rotatably connected to the bottom of the pressure plate, and the threaded rod is threadedly connected to the bottom of the mounting bracket.

[0009] In some embodiments, the mounting bracket and the first tray are connected by a snap-fit ​​connection.

[0010] In some embodiments, an airbag is fixedly installed on one side inside both the first tray and the second tray, and an inflation port is provided on one side of the airbag.

[0011] In some embodiments, the friction block outside the rotating shaft is not fully enclosed. When the strap rotates to the side away from the limiting hook and loop fastener, the friction block does not contact the friction plate. When the strap rotates to the side of the limiting hook and loop fastener, the friction block rubs against the friction plate.

[0012] In some embodiments, the length of the limiting Velcro is equal to the length of the slide bar in the sliding seat.

[0013] In some embodiments, there are multiple limiting holes, and the limiting holes are equidistantly arranged on one side of the first tray.

[0014] In some embodiments, the diameter of the bore inside the rotating shaft is the same as the outer diameter of the sliding seat.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a puncture upper limb fixation strap for blood purification, which has the following beneficial effects:

[0017] When the total length of tray 1 and tray 2 needs to be adjusted, simply press the limiting post until it retracts into tray 2, and then push tray 2 to make the adjustment. When the position of the ligature needs to be adjusted according to the position of the puncture needle, simply rotate the ligature to the side away from the limiting Velcro, so that the external friction block of the rotating shaft does not contact the friction plate. Then slide the ligature according to the position of the puncture needle, rotate the ligature to the side of the limiting Velcro, stick it with the Velcro, and then fix the puncture needle through the Velcro at the top of the ligature. This makes the operation convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the No. 1 pallet of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation component of this utility model.

[0021] In the picture:

[0022] 11. Pallet No. 1; 12. Pallet No. 2; 13. Straps;

[0023] 2. Adjustment component; 21. Limiting post; 22. Limiting hole; 23. Sliding seat; 24. Rotating shaft; 25. Strap; 26. Friction plate; 27. Limiting Velcro;

[0024] 3. Mounting components; 31. Mounting bracket; 32. Pressure plate; 33. Threaded rod;

[0025] 41. Airbag. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0030] During use, after performing the puncture, the operator binds the patient's arm and the puncture needle with a bandage and fixes the patient's arm in place to prevent the dialysis process from being affected by the patient's movements.

[0031] In related technologies, such as the upper limb fixation strap for blood purification disclosed in CN215503666U, the upper limb fixation strap can better support the patient's upper limb and ensure comfort by adjusting the gas inside the airbag. Then, the patient's arm is fixed by flipping the Velcro forward. Medical staff perform the puncture operation on the patient. After the puncture is completed, the puncture needle is fixed with Velcro to prevent the patient from moving and affecting the position of the puncture needle. However, since different patients have different arm lengths and puncture positions, this device cannot adjust the fixation position according to the patient's arm length and puncture position, which has certain limitations and causes inconvenience in use.

[0032] To address some of the problems in related technologies, this application provides a puncture fixation strap for blood purification. When the total length of the first support plate 11 and the second support plate 12 needs to be adjusted, simply press the limiting post 21 until it is retracted into the second support plate 12, and then push the second support plate 12 to make the adjustment. When the position of the tether 25 needs to be adjusted according to the position of the puncture needle, simply rotate the tether 25 to the side away from the limiting hook and loop fastener 27, so that the external friction block of the rotating shaft 24 does not contact the friction plate 26. Then slide the tether 25 according to the position of the puncture needle, rotate the tether 25 to the side of the limiting hook and loop fastener 27, attach it with the hook and loop fastener, and then fix the puncture needle through the hook and loop fastener at the top of the tether 25. This is convenient to operate.

[0033] This application is described below with reference to the accompanying drawings and specific embodiments:

[0034] Combination Figures 1-3 This application provides a puncture limb fixation strap for blood purification, comprising: a first support plate 11, with a second support plate 12 slidably connected to one side of the first support plate 11 and the second support plate 12; straps 13 are installed on the sides of the first support plate 11 and the second support plate 12, and the straps 13 are connected by Velcro; an adjustment component 2 is provided on the first support plate 11 and the second support plate 12; the adjustment component 2 includes: a limiting post 21, which is installed on one side of the second support plate 12 by a spring; a limiting post 21 is provided on one side of the first support plate 11. The column 21 has a limiting hole 22 with the same cross-sectional shape; a sliding seat 23 is fixedly connected to one side of the top of the first tray 11; a rotating shaft 24 is movably connected to the outside of the sliding seat 23, and a friction block is provided on the outside of the rotating shaft 24; one end of a strap 25 is fixedly connected to one side of the rotating shaft 24, and the other end of the strap 25 is sewn with Velcro; a friction plate 26 is fixedly connected to the top of the first tray 11 and below the sliding seat 23; a limiting Velcro 27 is sewn to one side of the first tray 11.

[0035] In use, place the patient's arm on top of support plate 11 and support plate 12. Then, pass the strap 13 through one side of support plate 11 and support plate 12, and secure the patient's arm to support plate 11 and support plate 12 using the strap 13 and Velcro. Install support plate 11 and support plate 12 on one side of the bed to fix the patient's arm. When adjusting the total length of support plate 11 and support plate 12, press the limiting post 21 until it retracts into support plate 12, and then push support plate 12 towards support plate 11 for adjustment. During the movement of support plate 12, the limiting post 21 will protrude from the limiting hole 22. If the adjustment is not yet complete, continue pressing the limiting post 21 to push support plate 12 until the adjustment is complete. When adjusting the ligature 25 according to the position of the puncture needle... When adjusting the position, rotate the strap 25 to the side away from the limiting hook and loop fastener 27, so that the external friction block of the rotating shaft 24 does not contact the friction plate 26, thus preventing friction between the rotating shaft 24 and the friction plate 26. Then, slide the strap 25 according to the position of the puncture needle. The strap 25 is elastic. Rotate the strap 25 to the side of the limiting hook and loop fastener 27 and attach it with the hook and loop fastener. As the strap 25 rotates, it will drive the rotating shaft 24 to rotate. When the rotating shaft 24 rotates, it will bring the friction block into contact with the friction plate 26, thus causing friction between the rotating shaft 24 and the friction plate 26. This friction limits the position of the strap 25 and the rotating shaft 24. The hook and loop fastener 27 between the limiting hook and loop fastener 27 provides a second limit for the strap 25, enhancing the reliability of the device. Finally, fix the puncture needle with the hook and loop fastener at the top of the strap 25 for easy operation.

[0036] In some embodiments, a mounting assembly 3 is provided on one side of the first tray 11; the mounting assembly 3 includes: a mounting bracket 31, which is fixedly connected to one side of the first tray 11; a pressure plate 32 is slidably connected inside the mounting bracket 31; a threaded rod 33 is rotatably connected to the bottom of the pressure plate 32, and the threaded rod 33 is threadedly connected to the bottom of the mounting bracket 31.

[0037] In use, insert the mounting bracket 31 into one side of the hospital bed, and then turn the threaded rod 33. Since the threaded rod 33 is rotatably connected to the pressure plate 32 and threadedly connected to the mounting bracket 31, the threaded rod 33 will move up and down inside the mounting bracket 31 when it rotates, thereby driving the pressure plate 32 to move up and down. By adjusting the distance between the pressure plate 32 and the top of the mounting bracket 31, one side of the hospital bed is clamped between the pressure plate 32 and the mounting bracket 31, thereby fixing the position of the first support plate 11 and the second support plate 12.

[0038] In some embodiments, the mounting bracket 31 and the first tray 11 are connected by a snap-fit, which facilitates the replacement of mounting brackets 31 of different lengths according to the thickness of the hospital bed and the position of the patient.

[0039] In some embodiments, an airbag 41 is fixedly installed on one side inside the first support plate 11 and the second support plate 12. An inflation port is provided on one side of the airbag 41. The airbag 41 supports the patient's arm and enhances the patient's comfort.

[0040] In some embodiments, the friction block outside the rotating shaft 24 is not fully enclosed. When the strap 25 rotates to the side away from the limiting hook and loop fastener 27, the friction block does not contact the friction plate 26. When the strap 25 rotates to the side of the limiting hook and loop fastener 27, the friction block rubs against the friction plate 26. After the strap 25 is attached to the limiting hook and loop fastener 27, the friction between the friction block and the friction plate 26 can limit the position of the strap 25 and the rotating shaft 24 to a certain extent.

[0041] In some embodiments, the length of the limiting hook and loop fastener 27 is equal to the length of the slide bar in the sliding seat 23, ensuring that when the rotating shaft 24 moves to any position on the slide bar, the hook and loop fastener on one side of the strap 25 can be attached to the corresponding limiting hook and loop fastener 27 within the elastic limit.

[0042] In some embodiments, there are multiple limiting holes 22, and the limiting holes 22 are equidistantly arranged on one side of the first support plate 11, so as to facilitate the adjustment of the total length of the first support plate 11 and the second support plate 12 to accommodate patients with different arm lengths.

[0043] In some embodiments, the inner diameter of the rotating shaft 24 is the same as the outer diameter of the sliding seat 23, preventing the rotating shaft 24 from moving radially outside the sliding seat 23 and stabilizing the stability of the rotating shaft 24 and the belt 25.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0045] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A puncture-resistant upper limb fixation strap for blood purification, characterized in that, include: A first tray (11) has a second tray (12) slidably connected to one side; straps (13) are installed on the sides of the first tray (11) and the second tray (12), and the straps (13) are connected by Velcro; an adjustment component (2) is provided on the first tray (11) and the second tray (12); the adjustment component (2) includes: A limiting post (21) is installed on one side of the second tray (12) by a spring; a limiting hole (22) with the same cross-sectional shape as the limiting post (21) is opened on one side of the first tray (11); a sliding seat (23) is fixedly connected to one side of the top of the first tray (11); a rotating shaft (24) is movably connected to the outside of the sliding seat (23), and a friction block is provided on the outside of the rotating shaft (24); one end of a strap (25) is fixedly connected to one side of the rotating shaft (24), and the other end of the strap (25) is sewn with Velcro; a friction plate (26) is fixedly connected to the top of the first tray (11) and below the sliding seat (23); a limiting Velcro (27) is sewn on one side of the first tray (11).

2. The puncture-resistant upper limb fixation strap for blood purification according to claim 1, characterized in that, A mounting assembly (3) is provided on one side of the first tray (11); the mounting assembly (3) includes: The mounting bracket (31) is fixedly connected to one side of the first tray (11); a pressure plate (32) is slidably connected inside the mounting bracket (31); a threaded rod (33) is rotatably connected to the bottom of the pressure plate (32), and the threaded rod (33) is threadedly connected to the bottom of the mounting bracket (31).

3. The puncture-resistant upper limb fixation strap for blood purification according to claim 2, characterized in that: The mounting bracket (31) and the first tray (11) are connected by a snap fastener.

4. The puncture-resistant upper limb fixation strap for blood purification according to claim 1, characterized in that: An airbag (41) is fixedly installed on one side of both the first tray (11) and the second tray (12), and an inflation port is provided on one side of the airbag (41).

5. The puncture-resistant upper limb fixation strap for blood purification according to claim 1, characterized in that: The friction block outside the rotating shaft (24) is not fully enclosed. When the strap (25) rotates to the side away from the limiting hook and loop fastener (27), the friction block does not contact the friction plate (26). When the strap (25) rotates to the side of the limiting hook and loop fastener (27), the friction block rubs against the friction plate (26).

6. The puncture-resistant upper limb fixation strap for blood purification according to claim 1, characterized in that: The length of the limiting hook and loop fastener (27) is equal to the length of the slide bar in the sliding seat (23).

7. The puncture-resistant upper limb fixation strap for blood purification according to claim 1, characterized in that: There are multiple limiting holes (22), and the limiting holes (22) are equidistantly arranged on one side of the first tray (11).

8. The puncture-resistant upper limb fixation strap for blood purification according to claim 1, characterized in that: The diameter of the hole inside the rotating shaft (24) is the same as the outer diameter of the sliding seat (23).

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