Inflatable internal arteriovenous fistula compression hemostasis wrist strap

Abstract

The utility model discloses an inflatable internal arteriovenous fistula compression hemostasis wrist strap, which belongs to the technical field of wrist straps and comprises a wrist strap body, elastic straps are connected to two sides of the wrist strap body, auxiliary straps are connected to one sides, far away from each other, of the two elastic straps, and the two auxiliary straps are connected and fixed through hook-and-loop fasteners. The inner side of the wrist strap body is connected with a compression air bag for compression hemostasis of internal arteriovenous fistula, and the compression air bag penetrates through the wrist strap body and is communicated with an inflation nozzle with an inflation check valve; u-shaped arc-shaped clamping plates are bonded to the peripheries of the two auxiliary belts, the two arc-shaped clamping plates are jointly connected with a protection shell used for protecting the elastic belt and the inflation nozzle, external threads are formed in the periphery of the protection shell, a threaded cover is connected to the periphery of the protection shell in a threaded mode, and a plurality of cotton pads providing comfort are bonded to the bottom end of the protection shell. A plurality of threaded channels are formed in the periphery of the protective shell. The inflatable compression hemostasis wrist strap for internal arteriovenous fistula not only can be used for detachable protection, but also can be used for double compression hemostasis.

Description

Technical Field

[0001] This utility model belongs to the field of wristband technology, and in particular to an inflatable arteriovenous fistula compression hemostatic wristband. Background Technology

[0002] Arteriovenous fistulas (AVFs) are currently the safest and simplest dialysis access for patients with end-stage renal failure, playing a crucial role in dialysis efficacy and long-term patient survival. However, the relatively large diameter of the fistula puncture needles used clinically, the increased pressure in the blood vessels after arteriovenous anastomosis, and frequent punctures can all make hemostasis at the puncture site difficult. Therefore, proper pressure hemostasis is a vital step in protecting the AVF, directly affecting the lifespan and effectiveness of the vessel. Current hemostatic devices utilize a balloon for pressure hemostasis, but lack protective features. Accidental pressure or contact with the balloon and the internal AVF can compromise health and safety.

[0003] A search revealed a Chinese patent document (authorization announcement number CN213129720U) regarding a tourniquet for dialysis. The tourniquet includes a strap with its two ends connected by Velcro. An airbag is fixed to the inner side of the strap, containing an airbag with a detachable inflation device. A timer is located on the outer side of the strap. The airbag allows medical staff and patients to adjust the pressure, preventing insufficient pressure from causing bleeding at the puncture site and excessive pressure from causing arteriovenous fistula occlusion, thus preventing normal dialysis treatment. The timer reminds patients and medical staff of the pressure duration, preventing prolonged pressure and protecting the arteriovenous fistula. While the tourniquet uses the airbag for pressure hemostasis, it lacks protective features. Accidental pressure or contact with the airbag and the internal fistula can affect health and safety. Utility Model Content

[0004] The purpose of this invention is to provide an inflatable arteriovenous fistula compression hemostatic wristband to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inflatable arteriovenous fistula compression hemostasis wristband, comprising a wristband body, elastic bands connected to both sides of the wristband body, auxiliary bands connected to the sides of the two elastic bands that are far apart from each other, and the two auxiliary bands being connected and fixed by Velcro.

[0006] The inner side of the wristband body is connected to a compression balloon for arteriovenous fistula compression hemostasis. The compression balloon passes through the wristband body and is connected to an inflation nozzle with an inflation check valve.

[0007] Both auxiliary straps have U-shaped arc-shaped clamps glued to their outer periphery. The two arc-shaped clamps are connected to a protective shell for protecting the elastic band and the inflation nozzle. The outer periphery of the protective shell has external threads, and the outer periphery of the protective shell is connected to a threaded cap. The bottom of the protective shell has multiple cotton pads glued to provide comfort.

[0008] As a preferred embodiment, the outer periphery of the protective shell is provided with multiple threaded channels, and the threaded channels are threadedly connected to a fixed threaded rod.

[0009] As a preferred embodiment, the side of the arc-shaped clamping plate is provided with a circular hole for the threaded rod to pass through, and the inner wall of the arc-shaped clamping plate is bonded with a number of elastic rubber hemispheres for pressing against the protective shell.

[0010] As a preferred embodiment, the outer periphery of the protective shell is provided with multiple vent holes that allow for ventilation.

[0011] As a preferred embodiment, a blood-absorbing layer is adhered to the side of the compression airbag away from the wristband body, and an antibacterial layer is connected to the side of the blood-absorbing layer away from the compression airbag.

[0012] As a preferred embodiment, both the wristband body and the auxiliary strap are made of breathable cotton fabric.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0014] This pneumatic arteriovenous fistula compression hemostasis wristband has a protective shell that protects the elastic band, the compression airbag, and the compressed fistula during use. The removable threaded cap makes it easy to operate the inflation nozzle. If you do not need protection or find the protective shell in the way, you can remove it. The cotton padding in the protective shell can support the wrist and protect it.

[0015] This pneumatic arteriovenous fistula compression hemostasis wristband has the wristband body connected to the auxiliary band via an elastic band. When the compression balloon is used for hemostasis, if the air pressure of the compression balloon decreases slightly, the elastic band's elasticity can also tighten the compression balloon to a certain extent, thus playing a double compression role.

[0016] This pneumatic arteriovenous fistula compression hemostasis wristband not only provides detachable protection but also achieves dual compression hemostasis. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

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

[0019] Figure 2This is a schematic diagram of the structure of this utility model after removing the arc-shaped card plate and the protective shell;

[0020] Figure 3 This is a top view structural diagram of the arc-shaped card plate of this utility model;

[0021] Figure 4 This is a front view of the wristband body of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the picture:

[0024] 1. Wristband body; 2. Elastic band; 3. Auxiliary band; 4. Compression airbag; 5. Inflation nozzle; 6. Arc-shaped retaining plate; 7. Protective shell; 8. Threaded cap; 9. Cotton pad; 10. Fixed threaded rod; 11. Rubber hemisphere; 12. Blood absorption layer; 13. Antibacterial layer. Detailed Implementation

[0025] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0026] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0027] The connection method can adopt existing methods such as bonding, welding, bolting, etc., depending on the actual needs. Techniques, methods and equipment known to those skilled in the art may not be discussed in detail. However, where appropriate, the techniques, methods and equipment should be regarded as part of the specification. The proportions of the components in the drawings are for reference only and can be adjusted to a certain extent according to the actual use.

[0028] Please see Figures 1 to 4 As shown, an inflatable arteriovenous fistula compression hemostasis wristband is provided in this embodiment. The wristband body 1 is connected to both sides of the wristband body 1. An auxiliary band 3 is connected to the side of the two elastic bands 2 that are far apart from each other. The two auxiliary bands 3 are connected and fixed by Velcro. The wristband body 1 and the auxiliary bands 3 are put on the outer periphery of the wrist, and the compression airbag 4 is aligned with the position of the arteriovenous fistula. The two auxiliary bands 3 are fixed by Velcro.

[0029] The inner side of the wristband body 1 is connected to a compression airbag 4 for arteriovenous fistula compression hemostasis. The compression airbag 4 passes through the wristband body 1 and is connected to an inflation nozzle 5 with an inflation check valve. The inflation nozzle 5 is used to inflate the compression airbag 4 to a specified pressure.

[0030] Both auxiliary straps 3 have U-shaped arc-shaped clamps 6 glued to their outer periphery. The two arc-shaped clamps 6 are connected together to a protective shell 7 for protecting the elastic band 2 and the inflation nozzle 5. The outer periphery of the protective shell 7 has external threads, and the outer periphery of the protective shell 7 is connected to a threaded cap 8. The bottom end of the protective shell 7 is glued with multiple cotton pads 9 to provide comfort. The outer periphery of the protective shell 7 has multiple vent holes with breathable function.

[0031] For fixation, the outer periphery of the protective shell 7 is provided with multiple threaded channels, and the threaded channels are threadedly connected to the fixing threaded rods 10. The side of the arc-shaped clamping plate 6 is provided with round holes for the fixing threaded rods 10 to pass through. The inner wall of the arc-shaped clamping plate 6 is bonded with multiple elastic rubber hemispheres 11 for pressing against the protective shell 7. If protection is required, the protective shell 7 is set inside the two arc-shaped clamping plates 6, and then fixed by the fixing threaded rods 10. The threaded caps 8 are threadedly connected to the outer periphery of the protective shell 7 for protection.

[0032] The compression airbag 4 has a blood-absorbing layer 12 attached to the side away from the wristband body 1, and the blood-absorbing layer 12 has an antibacterial layer 13 attached to the side away from the compression airbag 4. Both the wristband body 1 and the auxiliary band 3 are made of breathable cotton fabric.

[0033] A sensor module can be installed on the side of the antibacterial layer 13, and an embedded processing unit is installed on the outer periphery of the auxiliary belt 3. The sensor module includes a bleeding detector, a vibration sensor, and a pressure sensor. The embedded processing unit collects the sensor signals, analyzes them in real time, and transmits the information to the control unit. The control unit has a built-in battery that supports more than 5 hours of operation. A small display screen is installed on one side of the auxiliary belt to show the compression status and warning information. It can be operated with buttons, allowing the patient to independently stop or pause the compression. It has vibration reminder and alarm functions. The inflation nozzle 5 can be equipped with an intelligent adjustable air pump, which adjusts the compression force based on sensor feedback. After receiving a command, the air pump inflates the airbag. Once the sensor detects blood, it transmits a signal to the microcontroller, which then issues a command to the air pump. At this time, the air pump begins to pressurize, realizing the inflation of the airbag, with no time delay.

[0034] Working principle

[0035] The inflatable arteriovenous fistula compression hemostasis wristband is made by putting the wristband body 1 and auxiliary bands 3 on the outer periphery of the wrist, aligning the compression airbag 4 with the location of the arteriovenous fistula, and fixing the two auxiliary bands 3 with Velcro. The inflation device is used to inflate the compression airbag 4 through the inflation nozzle 5 to the specified pressure. If protection is required, a protective shell 7 is set inside the two arc-shaped clamps 6, and then fixed with the fixing threaded rod 10. A threaded cap 8 is threadedly connected to the outer periphery of the protective shell 7 for protection.

[0036] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] 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. An inflated arteriovenous fistula compression hemostasis wristband, comprising a wristband body (1), characterized in that, Both sides of the wristband body (1) are connected to elastic bands (2), and the two elastic bands (2) are connected to auxiliary bands (3) on the side that is far apart from each other. The two auxiliary bands (3) are connected and fixed by Velcro. The inner side of the wristband body (1) is connected to a compression airbag (4) for arteriovenous fistula compression hemostasis. The compression airbag (4) passes through the wristband body (1) and is connected to an inflation nozzle (5) with an inflation check valve. The outer periphery of each of the two auxiliary bands (3) is bonded with a U-shaped arc plate (6), and the two arc plates (6) are connected together to a protective shell (7) for protecting the elastic band (2) and the inflation nozzle (5). The outer periphery of the protective shell (7) is provided with external threads, and the outer periphery of the protective shell (7) is connected with a threaded cap (8). The bottom end of the protective shell (7) is bonded with multiple cotton pads (9) to provide comfort.

2. The pneumatic arteriovenous fistula compression hemostasis wristband of claim 1, wherein, The outer periphery of the protective shell (7) is provided with multiple threaded channels, and the threaded channels are threadedly connected to a fixed threaded rod (10).

3. The pneumatic arteriovenous fistula compression hemostasis wristband of claim 2, wherein, The side of the arc-shaped plate (6) is provided with a round hole for the threaded rod (10) to pass through, and the inner wall of the arc-shaped plate (6) is bonded with a plurality of elastic rubber hemispheres (11) for pressing against the protective shell (7).

4. The compression hemostasis wristband for air-arteriovenous fistula according to claim 1, characterized in that, The outer periphery of the protective shell (7) is provided with multiple vent holes with ventilation function.

5. The pneumatic arteriovenous fistula compression hemostasis wristband of claim 1, wherein, The compression airbag (4) has a blood absorption layer (12) attached to the side away from the wristband body (1), and the blood absorption layer (12) has an antibacterial layer (13) attached to the side away from the compression airbag (4).

6. The pneumatic arteriovenous fistula compression hemostasis wristband of claim 1, wherein, Both the wristband body (1) and the auxiliary band (3) are made of breathable cotton fabric.

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