Hemodialysis special tourniquet

Abstract

The utility model relates to medical equipment technical field, concretely relates to a special tourniquet for hemodialysis, including tourniquet body, the tourniquet body includes pressing starting end and tight end, and the pressing starting end is equipped with the first connecting piece, and the tight end is equipped with the second connecting piece with the first connecting piece cooperation and can realize the fixed tourniquet body after winding, the side of the pressing starting end away from the first connecting piece is equipped with the buffer piece that can buffer the impact that the mistake hits produces, and the buffer piece is connected with the buffer limiting piece that can limit the displacement of cotton yarn ball, the pressing starting end also detachably connected with the extension belt that can extend tourniquet body to emergency contingency. The utility model through setting up buffer limiting piece limit the displacement of hemostatic cotton yarn ball, also have certain buffer effect simultaneously, increase the setting of buffer piece again, to further buffer the impact force that the mistake hits produces, through setting up detachable extension belt, when meeting the unexpected situation, can through temporary extension to emergency.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a tourniquet for hemodialysis. Background Technology

[0002] Tourniquets specifically designed for hemodialysis are primarily used after hemodialysis to help control bleeding, especially when anticoagulants are in use. In such cases, the patient's coagulation function may be suppressed, making hemostasis at the puncture site difficult after dialysis. The tourniquet applies appropriate pressure to help close the puncture site, preventing bleeding, while avoiding excessive pressure that could block the fistula. Currently, there are two main types of tourniquets used for compression hemostasis: red and blue elastic tourniquets and bandages. Red and blue elastic tourniquets are the most commonly used type, designed for individual use and managed by the patient.

[0003] After hemodialysis treatment, patients need to apply pressure to the puncture site to stop bleeding. The current standard practice is to roll a cotton ball into a tube, apply pressure to the puncture site after needle removal, and then secure the cotton ball with tape or a Velcro bandage for pressure bandaging. This pressure is typically applied for half an hour before being released. However, this practice has the following drawbacks: (1) There is no adhesive fixation between the cotton ball and the cloth strip. If the pressure is uneven or the cotton ball moves with the arm, it may shift, affecting the hemostatic effect of the pressure. (2) Cotton balls are inelastic. If the patient's arm is hit due to carelessness in daily life, it will cause impact on the arteriovenous fistula, which is not conducive to hemostasis and protection of blood vessels. (3) Hemodialysis patients often have to undergo multiple punctures due to unsuccessful punctures, resulting in a large local wound. This can lead to insufficient bandages and the use of ordinary adhesive tape, which cannot apply pressure and is not conducive to hemostasis. On the other hand, the repeatedly used bandages are prone to carrying bacteria, and the large wound increases the risk of infection, which can lead to poor healing of the puncture site. (4) After pressure fixation, the bandage cannot be removed before hemostasis is confirmed. The pressure cannot be appropriately reduced according to the hemostasis time, which affects the patient's comfort and appearance.

[0004] In existing published patents, for example, patent CN222172202U can extend the tourniquet by setting an adjustment structure. However, this adjustment structure contains rigid components. When the arm is slightly bent, it is easy to hit the rigid components, causing discomfort to the hand. Moreover, the technical solution of this patent does not solve other problems at the same time. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a tourniquet specifically designed for hemodialysis. This tourniquet protects the puncture site, preventing displacement of the hemostatic cotton gauze and mitigating the impact on the arteriovenous fistula caused by accidental impact. Furthermore, it includes a detachable extension strap for emergency use when unforeseen circumstances increase the wound area and the original tourniquet becomes insufficient. This achieves a multi-functional tourniquet.

[0006] To solve the above problems, the present invention adopts the following solution: A tourniquet for hemodialysis includes a tourniquet body, which includes a pressing start end and a fastening end end. The pressing start end is provided with a first connector, and the fastening end end is provided with a second connector that cooperates with the first connector to fix the tourniquet body after it is wrapped around. The side of the pressing start end away from the first connector is provided with a buffer to cushion the impact caused by accidental collision. The buffer is connected to a buffer limiting member that can limit the displacement of the cotton yarn ball. The pressing start end can also be detachably connected to an extension strap that can extend the tourniquet body for emergency situations.

[0007] In the above solution, the hemostatic cotton gauze ball is limited by a buffer limiting component to prevent displacement and also to provide a certain buffering effect, thus buffering the impact on the arteriovenous fistula vessel caused by accidental collision. A buffer component is also added to further buffer the impact force generated by accidental collision. A detachable extension band is provided so that it can be temporarily extended in case of emergency. Thus, the tourniquet achieves a multi-functional effect.

[0008] Preferably, the buffer limiting member includes memory foam, and the memory foam is wrapped with cotton and linen fabric.

[0009] In the above configuration, the memory foam is designed to ensure that the cushioning and limiting component is easily deformable and can fully contact the cotton ball, increasing the friction with the cotton ball. The cotton and linen fabric is designed to ensure that the contact surface with the cotton ball is rough enough, further increasing the friction with the cotton ball, thereby ensuring the limiting effect on the cotton ball.

[0010] Preferably, the buffer limiting member is provided with a limiting arc groove.

[0011] The above-mentioned design allows the rolled-up cotton yarn ball to be placed in the limiting arc groove. On the one hand, this facilitates determining the placement position of the starting end of the press, and on the other hand, it further provides a certain limiting effect to ensure the limiting effect on the cotton yarn ball.

[0012] Preferably, the buffer limiting member is softer than the buffer member.

[0013] The above setup involves a softer cushioning limiter that contacts the cotton ball and the skin at the puncture point, primarily ensuring comfortable contact while providing some cushioning. The cushioning element is slightly harder than the cushioning limiter to further ensure the cushioning effect.

[0014] Preferably, the cushioning element is made of a cotton blend material with a certain thickness. The manufacturing method of this cushioning element is simple and convenient, and it is not prone to failure.

[0015] Preferably, the cushioning element is an airbag, which has an inflation port for inflation and an exhaust port for deflating. The cushioning element formed by the airbag allows for control of its thickness. When an extension strap needs to be connected, the air in the airbag can be released, leaving it in a flat, airless state, making it easier to wrap.

[0016] Preferably, the extension band includes a connecting end and an extension pressing end. The connecting end is provided with a third connecting member that can be connected to the first connecting member, and the extension pressing end is provided with a fourth connecting member that can be connected to the second connecting member. Furthermore, the side of the extension pressing end away from the fourth connecting member is provided with a buffer member and a buffer limiting member in sequence.

[0017] The above configuration connects the connecting end to the starting end of the tourniquet body to extend the length of the tourniquet body. The extended pressing end is then placed at the puncture point and wrapped around the arm to achieve connection and fixation with the second connector that is fastened to the ending end.

[0018] Preferably, the extension band connection end is provided with a fifth connector and a sixth connector that cooperate with each other near its end, and the tourniquet body is provided with a stable connecting band at the first connector that allows the extension band connection end to pass through and allows the fifth connector and the sixth connector to cooperate.

[0019] The above-mentioned further design allows the extension band to pass through the sturdy connecting band to achieve a further connection with the tourniquet body, ensuring a stable connection between the extension band and the tourniquet body, and avoiding any impact on the pressure hemostasis applied to the patient due to an unstable connection between the first and third connecting parts.

[0020] Preferably, the width of the extension band is wider than the width of the tourniquet body.

[0021] The above settings are designed so that when a patient's local wound enlarges due to an unexpected situation, the widened extension belt can be used as an emergency measure.

[0022] Preferably, the extension band corresponding to the position of the third connector has stabilizing folding tabs on both sides. Each stabilizing folding tab has a seventh connector and an eighth connector that can be connected to each other. After the extension band is connected to the tourniquet body, the two stabilizing folding tabs are folded, and the seventh and eighth connectors are connected. This further ensures the stable connection between the extension band and the tourniquet body.

[0023] Preferably, the two sturdy folding pieces are also provided with folding imprint areas, which have multiple folds to facilitate folding.

[0024] Preferably, the tourniquet body is provided with a scale along its length edge and the extension band is provided with a length indicator line near the starting end of the tourniquet and near the extended end of the extension band to remind the patient to release the tourniquet.

[0025] The above setup includes a scale and indicator lines to facilitate user observation. When it is necessary to reduce pressure and loosen part of the tourniquet body or extension, the scale allows for easy observation of the loosened length. For unfamiliar new patients, the indicator lines can also be used to observe and loosen the tourniquet to an appropriate length.

[0026] The beneficial effects of this utility model are as follows: This utility model limits the displacement of hemostatic cotton balls by setting a buffer limiting component, and also has a certain buffering effect to buffer the impact on the arteriovenous fistula vessels caused by accidental collision. Further buffering was added to further cushion the impact on the arteriovenous fistula vessels caused by accidental collision; By setting a detachable extension band, it can be temporarily extended for emergency situations. After use, the extension band can be detached and reused. Therefore, when purchasing a tourniquet, patients can still purchase a relatively shorter and more cost-effective tourniquet model, reducing the patient's medical costs. By setting a ruler and indicator lines, patients can be prompted to loosen the tourniquet to an appropriate length according to the time of hemostasis, so as to reduce pressure and ensure patient comfort. Attached Figure Description

[0027] Figure 1 This is a partial structural diagram of one side of the tourniquet body and extension band when they are separated in Example 1; Figure 2 This is a partial structural diagram of the other side when the tourniquet body and extension band are separated in Example 1; Figure 3 This is a schematic diagram of the hemostatic band structure formed by thickening the buffer component in Example 1; Figure 4 This is a schematic diagram of the tourniquet section in Example 2, where the buffer is an airbag.

[0028] Figure label: Tourniquet body 10, starting pressing end 11, ending fastening end 12, first connector 111, second connector 121, buffer 20, buffer limiting component 30, limiting arc groove 31, extension band 40, connecting end 41, extended pressing end 42, third connector 411, fourth connector 421, fifth connector 51, sixth connector 52, stabilizing connecting band 53, stabilizing folding piece 61, seventh connector 62, eighth connector 63, folding imprint area 611, ruler band 71, indicator line 72. Detailed Implementation

[0029] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0030] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the figures only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0031] Example 1: A tourniquet for hemodialysis includes a tourniquet body 10. The tourniquet body 10 includes a pressing start end 11 and a fastening end end 12. The pressing start end 11 is provided with a first connector 111. The fastening end end 12 is provided with a second connector 121 that can cooperate with the first connector 111 to fix the tourniquet body 10 after wrapping. The side of the pressing start end 11 away from the first connector 111 is provided with a buffer 20 that can buffer the impact caused by accidental collision. The buffer 20 is connected to a buffer limiting member 30 that can limit the displacement of the cotton ball. The pressing start end 11 can also be detachably connected to an extension strap 40 that can extend the tourniquet body 10 for emergency situations.

[0032] Furthermore, to increase the friction between the buffer limiting member 30 and the cotton ball, and to ensure the limiting effect of the buffer limiting member 30 on the cotton ball, the buffer limiting member 30 includes memory foam, which is wrapped with cotton and linen fabric. The memory foam is designed to ensure that the buffer limiting member 30 is easily deformable and can fully contact the cotton ball, increasing the friction with the cotton ball. The cotton and linen fabric is used to ensure that the contact surface with the cotton ball is sufficiently rough, further increasing the friction with the cotton ball.

[0033] Furthermore, the buffer limiting member 30 is provided with a limiting arc groove 31. This allows the cotton yarn ball, rolled into a roll shape, to be placed within the limiting arc groove 31. On the one hand, this facilitates determining the placement position of the pressing start end 11; on the other hand, it further provides a certain limiting effect, ensuring the limiting effect on the cotton yarn ball.

[0034] To simultaneously ensure comfort upon skin contact and cushioning against external impacts, the cushioning limiter 30 is softer than the cushioning member 20. Therefore, the cushioning limiter 30, which comes into contact with the skin, is softer to ensure comfort, while the cushioning member 20 is slightly firmer to prevent it from deforming too much and affecting its cushioning effect upon impact.

[0035] The cushioning element 20 is made of a cotton blend material with a thickness of 2 cm. The manufacturing method of the cushioning element 20 is simple and convenient, and it is not prone to failure.

[0036] To achieve a detachable connection between the extension band 40 and the tourniquet body 10, the extension band 40 includes a connecting end 41 and an extension pressing end 42. The connecting end 41 is provided with a third connecting member 411 that can be connected to the first connecting member 111. The extension pressing end 42 is provided with a fourth connecting member 421 that can be connected to the second connecting member 121. Furthermore, a buffer member 20 and a buffer limiting member 30 are sequentially provided on the side of the extension pressing end 42 away from the fourth connecting member 421.

[0037] The extension band 40 is connected to the pressing start end 11 of the tourniquet body 10 to extend the length of the tourniquet body 10. The extended pressing end 42 is then placed at the puncture point and wrapped around the arm and fastened to the second connector 121 at the end end 12 to achieve connection and fixation.

[0038] Furthermore, the extension band 40 has a fifth connector 51 and a sixth connector 52 near its end, which cooperate with each other. The tourniquet body 10 has a sturdy connecting band 53 at the first connector 111, which allows the extension band 40 to pass through and allows the fifth connector 51 and the sixth connector 52 to cooperate. Passing the extension band 40 through the sturdy connecting band 53 achieves a further connection with the tourniquet body 10, ensuring a stable connection between the extension band 40 and the tourniquet body 10.

[0039] To better address the increase in local wound area caused by unexpected situations, the extension band 40 is wider than the tourniquet body 10, with a width of 3.5cm, thereby protecting a larger wound area.

[0040] Furthermore, the extension band 40 corresponding to the position of the third connector 411 is provided with stabilizing folding pieces 61 on both sides. The two stabilizing folding pieces 61 are respectively provided with a seventh connector 62 and an eighth connector 63 that can cooperate with each other. When the extension band 40 is connected to the tourniquet body 10, the two stabilizing folding pieces 61 are folded and the seventh connector 62 and the eighth connector 63 are connected; thereby further ensuring the stability of the connection between the extension band 40 and the tourniquet body 10.

[0041] Furthermore, the two sturdy folding pieces 61 are also provided with folding imprint areas 611, which have multiple folds to facilitate folding.

[0042] To facilitate appropriate pressure reduction based on hemostasis time, allowing the patient to release the tourniquet to a suitable length, the tourniquet body 10 and the extension band 40 are both equipped with a scale strip 71 along their length edges. Furthermore, indicator lines 72 are provided near the initial pressure end 11 of the tourniquet and near the extended pressure end 42 of the extension band 40 to remind the patient of the release length. This allows the user to easily observe the length of release for the tourniquet body 10 or the extension band 40 using the scale strip 71. For new patients unfamiliar with the procedure, the indicator lines 72 can also be used to guide the release to an appropriate length.

[0043] In this embodiment, the first connector 111, the fourth connector 421, the fifth connector 51, and the seventh connector 62 are all Velcro with rounded textured surfaces, while the second connector 121, the third connector 411, the sixth connector 52, and the eighth connector 63 are all Velcro with burred textured surfaces.

[0044] The working principle of this embodiment is as follows: By setting a buffer limiter 30 to restrict the hemostatic cotton gauze ball, displacement of the cotton gauze ball is prevented, and a certain buffering effect is also provided to buffer the impact on the arteriovenous fistula vessel caused by accidental collision; a buffer 20 is added to further buffer the impact force generated by accidental collision; a detachable extension band 40 is set so that it can be temporarily extended in case of emergency; a ruler band 71 and a prompt line 72 are set to remind the patient to loosen the tourniquet to an appropriate length according to the hemostasis time, so as to appropriately reduce pressure and ensure patient comfort.

[0045] Example 2 differs from Example 1 mainly in that the buffer 20 is an airbag, which has an inflation port for inflation and an exhaust port for deflating. The thickness of the buffer 20 formed by the airbag can be controlled. When the extension strap 40 needs to be connected, the air in the airbag can be released, leaving the airbag in a flat, gas-free state, making it easier to wrap.

[0046] The above description is merely a specific example of this utility model and does not constitute any limitation on this utility model. Obviously, those skilled in the art, after understanding the content and principle of this utility model, may make various modifications and changes in form and details without departing from the principle and structure of this utility model. However, these modifications and changes based on the concept of this utility model are still within the protection scope of the claims of this utility model.

Claims

1. A tourniquet specifically for hemodialysis, characterized in that, The tourniquet includes a tourniquet body (10), which includes a pressing start end (11) and a fastening end end (12). The pressing start end (11) is provided with a first connector (111), and the fastening end end (12) is provided with a second connector (121) that can cooperate with the first connector (111) to fix the tourniquet body (10) after it is wrapped. The pressing start end (11) is provided with a buffer (20) on the side away from the first connector (111) to buffer the impact caused by accidental collision. The buffer (20) is connected to a buffer limiting member (30) that can limit the displacement of the cotton ball. The pressing start end (11) can also be detachably connected to an extension band (40) that can extend the tourniquet body (10) for emergency situations.

2. The tourniquet for hemodialysis according to claim 1, characterized in that, The buffer limiting member (30) includes memory foam, and the memory foam is wrapped with cotton and linen fabric.

3. The tourniquet for hemodialysis according to claim 1, characterized in that, The buffer limiting member (30) is provided with a limiting arc groove (31).

4. The tourniquet for hemodialysis according to claim 1, characterized in that, The buffer stop (30) is softer than the buffer (20).

5. The tourniquet for hemodialysis according to claim 4, characterized in that, The cushioning element (20) is made of a cotton blend material with thickness.

6. The tourniquet for hemodialysis according to claim 4, characterized in that, The buffer (20) is an airbag, which is provided with an inflation port for inflation and an exhaust port for exhaust.

7. The tourniquet for hemodialysis according to claim 1, characterized in that, The extension band (40) includes a connecting end (41) and an extension pressing end (42). The connecting end (41) is provided with a third connecting member (411) that can be connected to the first connecting member (111). The extension pressing end (42) is provided with a fourth connecting member (421) that can be connected to the second connecting member (121). The side of the extension pressing end (42) away from the fourth connecting member (421) is also provided with a buffer member (20) and a buffer limiting member (30) in sequence.

8. The tourniquet for hemodialysis according to claim 7, characterized in that, The extension band (40) has a fifth connector (51) and a sixth connector (52) that cooperate with each other near its end. The tourniquet body (10) has a stable connecting band (53) at the first connector (111) that allows the extension band (40) connection end (41) to pass through and allows the fifth connector (51) and the sixth connector (52) to cooperate.

9. The tourniquet for hemodialysis according to any one of claims 1-8, characterized in that, The width of the extension band (40) is wider than the width of the tourniquet body (10).

10. The tourniquet for hemodialysis according to claim 1, characterized in that, The tourniquet body (10) is provided with a scale strip (71) along its length edge and the extension strip (40) is provided with a prompt line (72) that can remind the patient to release the length near the starting end (11) of the tourniquet and near the extended end (42) of the extension strip (40).

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