Arm warming device for dialysis

Abstract

The utility model discloses an arm temperature adjusting device for dialysis, including cover layer, base layer, heat source placement layer, the cover layer, base layer, heat source placement layer are set gradually from top to bottom, the cover layer and base layer between form have the heat preservation storehouse, the heat preservation storehouse are used for the arm of patient to pass through, the cover layer is made of transparent material, this device is through setting cover layer and base layer, utilizes the heat preservation storehouse formed between cover layer and base layer, and the arm of patient passes through, realizes the wrapping arm, then through the heating element of heat source placement layer setting, the part of wrapping arm is heated, prevents long -time naked and can cause arm temperature low and thus promotes blood vessel contraction to some negative influence, simultaneously, through the cover layer of transparent material making, can observe the arm of patient and blood catheter through the cover layer at any time.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, and in particular to a temperature control device for dialysis arms. Background Technology

[0002] Kidney disease patients requiring hemodialysis must expose their bare arms and corresponding blood catheters during the procedure so that medical staff can monitor them closely and address any abnormalities promptly. However, prolonged exposure can cause the arm to become too cold, leading to vasoconstriction and other negative effects. Therefore, appropriately warming the stent arm can have numerous benefits for dialysis patients, such as reducing pain, dilating blood vessels, and lowering the risk of blood clots.

[0003] Existing related technologies are mainly focused on the maintenance of vascular fistulas in dialysis patients during daily life and are not suitable for use during hemodialysis in medical institutions. There are also related technologies for use during dialysis, but these are only intended to serve a small number of special patients. For example, announcement number CN117017606A includes a fixing plate with a first support plate on its right side and a second support plate on its left side. Multiple hooks are fixedly connected to the second and first support plates on the side away from the fixing plate. A wrapping strap is located above the fixing plate, with hanging rods fixedly connected to both sides of the wrapping strap. A flipping plate is located below the fixing plate, and a positioning plate is located below the flipping plate. The positioning plate and the flipping plate cooperate to form a limiting structure for the fixing plate. Although this device has massage and heating functions, its overall size is large, and its production cost is high, making it suitable only for a small number of patients who lack self-control.

[0004] Dialysis centers need a widely applicable technology that can simultaneously meet the following requirements: during hemodialysis, the dialysis catheter at the arterial and venous puncture sites and adjacent areas must be readily visible to medical staff and patients; the dialysis arm must be temperature-controlled; and low-cost disposable supplies must be available to avoid the many drawbacks of reuse. Existing technologies have not fully considered these issues. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dialysis arm temperature control device with high user comfort.

[0006] To achieve the above objectives, the present invention provides the following solution: a dialysis arm temperature control device, comprising a covering layer, a base layer, and a heat source placement layer, wherein the covering layer, the base layer, and the heat source placement layer are arranged sequentially from top to bottom, and a heat preservation chamber is formed between the covering layer and the base layer, the heat preservation chamber being used for the patient's arm to pass through; the covering layer is made of a transparent material; wherein, an adhesive area is provided on one of the left and right sides of the bottom of the covering layer, and the other side is fixedly connected to the base layer, the adhesive area being detachably connected to the base layer.

[0007] The beneficial effects of this invention are as follows: it enables observation and heating of the arm. The device uses a covering layer and a base layer, with an insulating chamber formed between them for the patient's arm to pass through, effectively wrapping the arm. Heating elements in the heat source placement layer then heat the wrapped portion of the arm, preventing prolonged exposure from causing low arm temperature, vasoconstriction, and other negative effects. Simultaneously, the transparent covering layer allows for easy observation of the patient's arm and blood vessels. Furthermore, the adhesive area enables rapid connection, and the adhesive position can be adjusted according to the patient's needs, thereby regulating the size of the insulating chamber to accommodate arms of varying thicknesses.

[0008] Furthermore, the covering layer is composed of a multi-layered composite structure. By adopting the above structure, this invention improves overall strength, makes it less prone to tearing and damage, and exhibits high overall stability.

[0009] Furthermore, the cover layer has notches on both its front and rear sides. When the insulation compartment covers the arm, the two notches correspond to the elbow crease and wrist crease areas of the patient's arm, respectively. By adopting the above structure, this invention increases the area of ​​the cover layer through the notches, improving the insulation effect while facilitating patient movement of the wrist or elbow joint, reducing contact between the edge of the cover layer and the skin of the arm, and improving user comfort.

[0010] Furthermore, the covering layer is divided into two first covering layers, which are spaced apart from each other, and a second catheter groove is left between the two first covering layers. With the above structure, this invention facilitates wrapping the patient's arm and guiding the blood catheter.

[0011] Furthermore, the covering layer is divided into two second covering layers, which are spaced apart horizontally. An adhesive area is provided on the bottom surface of the opposite side of one second covering layer and the other second covering layer. The back sides of the two second covering layers are respectively fixedly connected to the base layer. With the above structure, the overlapping covering layers can provide stronger heat preservation, while also facilitating the wrapping of the patient's arm and guiding the blood catheter.

[0012] Furthermore, the covering layer has multiple vertically penetrating guide holes, and the covering layer also has multiple vertically penetrating first catheter grooves. One end of each catheter groove is connected to a guide hole, and the other end is connected to a notch. By adopting the above structure, this invention reduces the constraint force generated when the catheter passes around the edge of the covering layer by providing multiple guide holes and multiple catheter grooves for the blood catheter to pass through. This reduces the discomfort caused to the patient when the catheter resists the constraint force, improves patient comfort, and lowers the overall production cost.

[0013] Furthermore, the length of the covering layer is less than the length of the base layer.

[0014] Furthermore, one of the left or right sides of the bottom of the covering layer is heat-pressed to the base layer.

[0015] Furthermore, the notch has an arc-shaped structure. This design facilitates wrist rotation for the patient and reduces friction between the wrist and the covering layer.

[0016] Furthermore, the heat source placement layer comprises at least one heating pad, with multiple heating pads respectively attached to the bottom of the substrate. With the above structure, this invention allows for direct heating of the substrate.

[0017] Furthermore, the heat source placement layer includes a heating element and a bottom layer. Three sides of the bottom layer are fixedly connected to the base layer to form a pocket for placing the heating element. With the above structure, this invention allows the heating element to be replaced and inserted into the pocket, and the temperature can be adjusted via a switch on the heating element.

[0018] Furthermore, at least one perforation is provided in the center of the heat source placement layer, the perforation extending vertically through the heat source placement layer and connecting to a pocket. This structure facilitates the insertion of the heating element into the pocket.

[0019] Furthermore, the base layer and the heat source placement layer are connected by thermo-pressing.

[0020] Furthermore, the heating element is a flexible electric heating patch.

[0021] Furthermore, both the base layer and the bottom layer are made of non-woven fabric or meltblown fabric. By adopting the above structure, this invention improves air permeability, thereby increasing heat transfer efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional view of the overall structure of Embodiment 1 of this utility model.

[0023] Figure 2 This is a three-dimensional view of the overall structure of Embodiment 2 of this utility model.

[0024] Figure 3 This is a breakdown of Embodiment 2 of the present invention. Figure 1 (The number of perforated holes is two).

[0025] Figure 4 This is a breakdown of Embodiment 2 of the present invention. Figure 2 (The number of perforated holes is one).

[0026] Figure 5 This is a breakdown of Embodiment 2 of the present invention. Figure 3 (The number of perforated holes is zero).

[0027] Figure 6 This is a perspective view of the overall structure of Embodiment 3 of this utility model.

[0028] Figure 7 This is a three-dimensional view of the overall structure of Embodiment 4 of this utility model.

[0029] Figure 8 This is a three-dimensional view of the covering layer of this utility model.

[0030] Figure 9 This is a three-dimensional view of the overall structure of Embodiment 5 of this utility model.

[0031] Among them, 1 is the covering layer, 11 is the notch, 12 is the guide hole, 13 is the first guide groove, 14 is the first covering layer, 15 is the second guide groove, 2 is the base layer, 21 is the heat insulation chamber, 3 is the heat source placement layer, 31 is the perforated hole, 32 is the pocket, and 4 is the bonding area. Detailed Implementation

[0032] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example 1:

[0034] See appendix Figure 1As shown, a dialysis arm temperature control device includes a cover layer 1, a base layer 2, and a heat source placement layer 3, which are arranged sequentially from top to bottom. A heat preservation chamber 21 is formed between the cover layer 1 and the base layer 2, and the heat preservation chamber 21 is used for the patient's arm to pass through.

[0035] The covering layer 1 has notches 11 on its front and back sides. When the heat preservation chamber 21 wraps around the arm, the two notches 11 correspond to the elbow crease area and wrist crease area of ​​the patient's arm, respectively. Specifically, the distance between the two notches 11 is less than the maximum length of the covering layer 1.

[0036] In this embodiment, an adhesive area 4 is provided on one of the left or right sides of the bottom of the cover layer 1, and the other side is fixedly connected to the base layer 2. The adhesive area 4 is detachably connected to the base layer 2; specifically, one of the left or right sides of the bottom of the cover layer 1 is hot-pressed to the base layer 2.

[0037] The cover layer 1 has multiple vertical guide holes 12 that penetrate the entire cover layer 1, and the cover layer 1 has multiple vertical first guide grooves 13 that penetrate the entire cover layer 1. One end of the first guide groove 13 is connected to the guide hole 12, and the other end is connected to the notch 11.

[0038] In this embodiment, the length of the cover layer 1 is less than the length of the base layer 2.

[0039] The cover layer 1 can be a single-layer or multi-layer structure; in this embodiment, it is a single-layer structure.

[0040] Traditional techniques mostly use male and female paired nylon hook and loop fasteners, or concealed fasteners, or binding straps, which are costly to produce, inconvenient to use, and have obvious bumps that can increase patient discomfort.

[0041] The device in this embodiment is a disposable item. The bonding area 4 in this embodiment uses adhesive tape. By tearing off the covering film on the tape, it can be stuck to any position of the covering layer 1. This can adapt to the inconsistency in spatial shape caused by different dialysis catheter directions, thereby better closing the covering layer 1, enhancing the heat preservation effect, and without causing a feeling of pressure after tightening.

[0042] Meanwhile, the bonding area 4 can be set at the corresponding position on the base layer 2 to adjust the degree of the covering layer 1 enclosing the arm, thereby adapting to the enclosing and wrapping of arms of different sizes.

[0043] In this embodiment, the heat source placement layer 3 consists of at least one heating pad, and multiple heating pads are respectively attached to the bottom of the base layer 2.

[0044] In this embodiment, the cover layer 1 is a multi-layer structure, and each multi-layer structure has a notch 11, a guide hole 12, and a first guide groove 13. The multi-layer cover layer 1 is arranged sequentially from top to bottom and is composited by ultrasonic or hot pressing.

[0045] In this embodiment, the covering layer 1 is made of a transparent film material, which is PVC film. This allows medical staff to observe the arm and blood catheter in real time through the transparent covering layer 1, and to deal with any abnormalities in a timely manner.

[0046] In this embodiment, the notch 11 has an arc-shaped structure. By setting the arc-shaped notch 11, the ends of the front and rear ends of the covering layer 1 are separated. This can increase the area of ​​the covering layer and improve the heat preservation effect, while making it easier for the patient to move their wrist or elbow, reducing the contact between the edge of the covering layer and the skin in the elbow and wrist crease areas, and improving the comfort of use.

[0047] In this embodiment, the base layer 2 and the heat source placement layer 3 are connected by hot pressing.

[0048] This embodiment uses a chemical energy heating patch. The heating patch is attached to the bottom of the base layer 1, and one heating patch covers one perforation 31. The heating patch can then transfer heat to the arm through the base layer 1. The advantages are accurate positioning, convenient installation, and high heat conduction efficiency.

[0049] In use, the heat preservation chamber 21 formed between the cover layer 1 and the base layer 2 allows the patient's arm to pass through. The heat preservation chamber 21 can also wrap around the patient's arm, allowing the arm to rest on the base layer 2 and the heat source placement layer 3. The cover layer 1 has a guide hole 12 and a first catheter groove 13 for the catheter to pass through. Since the stoma location of each patient is different, the arterial and venous puncture sites during dialysis will also be different, which leads to different catheter routes. If the cover layer 1 in this embodiment does not have a guide hole 12 and a first catheter groove 13, then it is necessary to go around the edge of the cover layer 1, which increases the ineffective length occupied by the catheter and the constraint force of the cover layer 1 on the catheter will be transmitted to the patient's arm, increasing discomfort. When the cover layer 1 has a guide hole 12 and a first catheter groove 13, the dialysis catheter can leave the arm from here when needed, reducing the constraint force generated by the catheter going around the edge of the cover layer 1 and reducing the discomfort caused to the patient when the catheter resists the constraint force. At the same time, the guide hole 12 is also a protective measure for the opening at the edge of the cover layer 1, which can improve strength and reduce the tearing of the cover layer 1 caused by stress concentration.

[0050] The base layer 2 has multiple heat conduction holes. In addition to sending heat to the heat-insulating chamber 21 formed by the enclosure structure through the base layer 2 via heat conduction and radiation, the heating element can also send hot air into the heat-insulating chamber 21 through the heat conduction holes on the base layer 2. This can increase the temperature of the upper part of the heat-insulating chamber 21 and reduce the temperature difference between the exposed skin of the arm that is not in contact with the base layer 2 and the skin below it. The heat source placement layer 3 sends heat into the heat-insulating chamber 21 by convection to heat the patient's arm and further improve thermal efficiency.

[0051] The heat source placement layer 3, the base layer 2, and the cover layer 1 are all derivatives of petrochemical materials, which have low overall production costs and simple processing. The connection between each layer is usually ultrasonic welding or hot-pressing composite connection. This method is suitable for continuous production lines of roll materials, which is conducive to large-scale production and effectively reduces costs. Example 2:

[0052] The difference between this embodiment and Embodiment 1 is as follows: See appendix Figure 2 To be continued Figure 5 Appendix Figure 8 As shown, in this embodiment, the heat source placement layer 3 includes a heating element and a bottom layer. Three sides of the bottom layer are fixedly connected to the base layer 2 to form a pocket 32, which is used to place the heating element. Specifically, the base layer 2 and the heat source placement layer 3 are connected by heat pressing.

[0053] In this embodiment, at least one perforated hole 31 is opened in the middle of the heat source placement layer 3. The perforated hole 31 vertically penetrates the heat source placement layer 3 and connects to the pocket 32.

[0054] In this embodiment, the heating element is a flexible electric heating patch, such as graphene electric heating cloth. However, due to its softness, it is not convenient to apply pushing force when inserting it into the pocket 32. At this time, a pulling force can be applied to the heating element from the outside through the perforation 31 to gradually pull the heating element into the mounting groove 32, so that the heating element can be reused and disassembly and replacement are more convenient. The heating element is equipped with a speed switch, which can adjust the heat source temperature according to the actual situation, thereby realizing the temperature adjustment of the heat preservation chamber.

[0055] As attached Figure 5 As shown, in this embodiment, in order to save raw materials and production costs, the perforated hole 31 may not be made. Example 3:

[0056] The key difference between this embodiment and Embodiments 1 and 2 is as follows: See appendix Figure 6 As shown, in this embodiment, the cover layer 1 is a two-layer or multi-layer structure, and the connection between the cover layers 1 is not a direct composite.

[0057] An adhesive area 4 is provided on the left side of the bottom of the odd-numbered cover layer 1, and the right side is hot-pressed to the base layer 1; the left side of the bottom of the even-numbered cover layer 1 is hot-pressed to the base layer 1, and the right side is provided with an adhesive area 4; or, an adhesive area 4 is provided on the left side of the bottom of the even-numbered cover layer 1, and the right side is hot-pressed to the base layer 1; the left side of the bottom of the odd-even numbered cover layer 1 is hot-pressed to the base layer 1, and the right side is provided with an adhesive area 4.

[0058] The front and rear sides of the cover layer 1 have notches 11 respectively. Then, depending on the actual situation, it can be decided whether to open the guide hole 12 and the first guide groove 13.

[0059] Thus, by using a multi-layered covering layer 1, the insulation chamber 21 formed by the covering layer 1 has a better insulation effect, and it avoids the problem of part of the base layer 2 rolling up and obscuring part of the arm caused by the adhesion problem after the covering layer 1 is connected to the base layer 2 in the case of a single-layer structure. Moreover, the multi-layered covering layer 1 can better guide the blood catheter route, reduce the constraint force generated by the catheter going around the edge of the covering layer 1, and reduce the discomfort caused to the patient when the catheter resists the constraint force.

[0060] Similarly, depending on the actual situation, the heat source placement layer 3 can be set as a heating pad or a combination of the bottom layer and the heating element.

[0061] When in use, place the patient's arm on the base layer 2, then peel off the film on the adhesive area 4 of the bottom cover layer 1, and then stick the adhesive area 4 on the base layer 2 to form an insulation chamber 21 to wrap the patient's arm. Then, in the same way, the cover layers 1 are bonded down layer by layer from bottom to top. Example 4:

[0062] The difference between this embodiment and Embodiment 3 is as follows: See appendix Figure 7 As shown, the cover layer 1 is divided into two first cover layers 14, which are spaced apart from each other, and a second conduit groove 15 is left between the two first cover layers 14.

[0063] The operating principle is the same as in Embodiment 3, but because a second catheter groove 15 is provided, the blood catheter can run through the second catheter groove 15 located in the middle, which can better guide the catheter's path. Example 5:

[0064] The key difference between this embodiment and Embodiments 1 and 2 is as follows: See appendix Figure 9 As shown, the covering layer 1 is divided into two second covering layers 16, which are spaced apart from each other. An adhesive area 4 is provided on the bottom surface of the opposite side of one second covering layer 16 and the other second covering layer 16. The back sides of the two second covering layers 16 are respectively fixedly connected to the base layer 2.

[0065] In this embodiment, the cover layer 1 is a single-layer structure. The cover layer 1 is divided into two second cover layers 16 distributed on the left and right sides from the middle. At the same time, the notch 11 is also divided into two. During assembly, the second cover layers 16 are simply stacked, and then the bonding area 4 of one second cover layer 16 is attached to the other second cover layer 16 to form the heat preservation chamber 21. With the guide hole 12 and the first catheter groove 13 set according to the actual situation, the blood catheter can be better guided and a good heat preservation effect can be maintained.

[0066] In this design, one of the second covering layers 16 adhesive areas 4 can be attached to different positions on the surface of another second covering layer 16 to achieve mutual overlap between the two second covering layers 16, which can adapt to patients' arms of different thicknesses.

[0067] Based on clinical trials, this embodiment is the best-in-class embodiment, offering high patient comfort and convenient blood catheter routing.

[0068] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any person skilled in the art can make more possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from the content of the technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A temperature control device for a dialysis arm, comprising a covering layer (1), a base layer (2), and a heat source placement layer (3), characterized in that: The covering layer (1), the base layer (2), and the heat source placement layer (3) are arranged sequentially from top to bottom. A heat preservation chamber (21) is formed between the covering layer (1) and the base layer (2), and the heat preservation chamber (21) is used to wrap the patient's arm. The covering layer (1) is made of transparent material. The cover layer (1) has an adhesive area (4) on one side of its bottom left and right sides, and the other side is fixedly connected to the base layer (2). The adhesive area (4) is detachably connected to the base layer (2).

2. The dialysis arm temperature control device according to claim 1, characterized in that: The covering layer (1) has notches (11) on the front and back sides respectively. When the heat preservation chamber (21) wraps the arm, the two notches (11) correspond to the elbow crease area and wrist crease area of ​​the patient's arm respectively.

3. The dialysis arm temperature control device according to claim 2, characterized in that: The covering layer is composed of a multi-layered composite structure.

4. A dialysis arm temperature control device according to claim 3, characterized in that: The cover layer (1) is divided into two first cover layers (14), which are spaced apart from each other, and a second conduit groove (15) is left between the two first cover layers (14).

5. A dialysis arm temperature control device according to claim 3, characterized in that: The covering layer (1) is divided into two second covering layers (16), which are spaced apart from each other. The bonding area (4) is provided on the bottom surface of the opposite side of one second covering layer (16) and the other second covering layer (16). The back sides of the two second covering layers (16) are respectively fixedly connected to the base layer (2).

6. A dialysis arm temperature control device according to claim 4 or 5, characterized in that: The cover layer (1) has multiple vertical first conduit grooves (13) that penetrate the entire cover layer (1). One end of the first conduit groove (13) is connected to the guide hole (12), and the other end is connected to the notch (11).

7. A dialysis arm temperature control device according to claim 6, characterized in that: The heat source placement layer (3) is at least one heating pad, and multiple heating pads are respectively attached to the bottom of the base layer (2).

8. A dialysis arm temperature control device according to claim 6, characterized in that: The heat source placement layer (3) includes a heating element and a bottom layer. Three sides of the bottom layer are fixedly connected to the base layer (2) to form a pocket (32), which is used to place the heating element.

9. A dialysis arm temperature control device according to claim 8, characterized in that: The heat source placement layer (3) has at least one perforated hole (31) in the middle, the perforated hole (31) vertically penetrates the heat source placement layer (3), and the perforated hole (31) connects to the pocket (32).

10. A dialysis arm temperature control device according to claim 9, characterized in that: The heating element is a flexible electric heating pad.

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