Sodium alginate hydrogel medical dressing and preparation method thereof

Abstract

The invention discloses a sodium alginate hydrogel medical dressing and a preparation method thereof, and particularly relates to the technical field of medical dressings, the sodium alginate hydrogel medical dressing comprises a material body, a material layer is mounted at the bottom of the material body, and a plurality of material liquid parts are fixed at the bottom of the material layer; the connecting mechanism comprises a connecting layer, a first arc layer and a second arc layer, the connecting layer is fixed to one side of the material body, the first arc layer and the second arc layer are hinged to the two sides of the connecting layer, the first arc layer is matched with the second arc layer, and a soft layer is fixed to one side of the first arc layer; through the arrangement of the connecting mechanism, the wound of a patient can be rapidly covered with the material layer, the operation time in the dressing change process is shortened, the infection risk increased due to the fact that the wound of the patient is exposed on the surface for a long time is avoided, and meanwhile the problem that an existing device is prone to further stimulation on tissue around the wound in the adhesion process is solved; and the pain and discomfort of the patient are relieved, so that the efficiency of the device is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of medical dressing technology, specifically relating to sodium alginate hydrogel medical dressings and their preparation methods. Background Technology

[0002] Currently, sodium alginate hydrogel medical dressings are commonly used to treat wounds or burns to protect the patient's wounds. Sodium alginate hydrogel medical dressings also have good antibacterial properties, which can effectively inhibit bacterial infection on the wound and promote wound healing.

[0003] However, in actual use, existing sodium alginate hydrogel medical dressings typically use adhesive to bond the dressing to the patient's wound. This makes it difficult for users to quickly cover the wound, increasing the operation time during dressing changes and leaving the wound exposed for an extended period, thus increasing the risk of infection. At the same time, the bonding process of existing medical dressings can easily cause further irritation to the tissues around the wound, increasing the patient's pain and discomfort, thereby greatly reducing the efficiency of traditional devices. Summary of the Invention

[0004] The purpose of this invention is to provide a sodium alginate hydrogel medical dressing and its preparation method. By setting up a connecting mechanism, the dressing layer can be quickly covered to cover the patient's wound, reducing the operation time during dressing changes and avoiding prolonged exposure of the wound to the surface, which increases the risk of infection. At the same time, it solves the problem that existing devices can easily cause further irritation to the tissues around the wound during the adhesion process, reducing the patient's pain and discomfort, thereby greatly increasing the efficiency of the device and overcoming the above-mentioned shortcomings in the technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sodium alginate hydrogel medical dressing, comprising:

[0006] The material body has a material layer installed at its bottom, and multiple liquid sections are fixed at the bottom of the material layer;

[0007] The connecting mechanism includes a connecting layer fixed to one side of the material and a first arc layer and a second arc layer hinged to both sides of the connecting layer. The first arc layer and the second arc layer cooperate with each other, and a soft layer is fixed to one side of the first arc layer. A fixing layer is installed on one side of the second arc layer, and the soft layer corresponds to the fixing layer.

[0008] Preferably, a disassembly mechanism is provided between the soft layer and the fixed layer to facilitate the disassembly of the soft layer. The disassembly mechanism includes a through groove inside the fixed layer and a slot on one side of the through groove, and a connecting rod is inserted into the slot.

[0009] Preferably, a positioning mechanism is arranged between the connecting rod and the soft layer to position the soft layer, the positioning mechanism comprises a positioning slot arranged in the soft layer and a receiving slot arranged on one side of the fixed layer, the receiving slot corresponds to the insertion slot, the connecting rod corresponds to the positioning slot, the connecting rod is inserted into the insertion slot and then inserted into the positioning slot, and then the connecting rod inserts the soft layer into the receiving slot, thereby limiting the soft layer.

[0010] Preferably, a deviation prevention mechanism is arranged between the soft layer and the first arc layer to prevent the soft layer from deviating, the deviation prevention mechanism comprises a positioning layer fixed on one side of the first arc layer and a through slot arranged in the positioning layer, and the soft layer corresponds to the through slot.

[0011] Preferably, a fluffing mechanism is arranged between the material layer and the material body to fluff the material layer, the fluffing mechanism comprises a mounting layer mounted in the material body and a first air hole arranged in the material layer, a second air hole is arranged in the mounting layer, the first air hole corresponds to the second air hole, and a limiting mechanism is arranged between the material layer and the mounting layer, the air flow generated at the wound of the patient can flow between the material layer and the mounting layer through the first air hole and the second air hole, thereby effectively cooling the wound of the patient and making the air more flowable.

[0012] Preferably, the limiting mechanism comprises a plurality of grooves arranged on the top of the material layer and a plurality of mounting blocks fixed on the bottom of the mounting layer, and the plurality of mounting blocks correspond to the plurality of grooves.

[0013] Preferably, a protection mechanism is arranged between the mounting layer and the material body to protect the material layer, the protection mechanism comprises a buffer layer mounted in the material body and a third air hole arranged in the buffer layer, the third air hole corresponds to the first air hole, a moving mechanism is arranged between the buffer layer and the mounting layer to facilitate the upward and downward movement of the buffer layer, the gas between the material layer and the mounting layer can be discharged through the third air hole, and the gas can form a temporary stay in the buffer layer through the flow rate of the gas.

[0014] Preferably, the moving mechanism comprises an opening slot arranged on the top of the mounting layer and a movable layer plate fixed on the bottom of the buffer layer, the movable layer plate corresponds to the opening slot, and a connecting plate is arranged between the buffer layer and the material body.

[0015] A preparation method of a sodium alginate hydrogel medical dressing, comprising the following steps:

[0016] S1, preparing materials: taking a certain amount of sodium alginate powder, deionized water, acid-base adjusting agent (such as hydrochloric acid and sodium hydroxide), disinfectant (such as alcohol), etc. for standby;

[0017] S2. Sterilization materials: Sterilize the utensils, containers and tools used to ensure aseptic conditions during the preparation process and avoid bacterial contamination during the preparation process;

[0018] S3. Soaking sodium alginate: Add a certain proportion of sodium alginate powder to deionized water to ensure it is fully dissolved;

[0019] S4. Adjust pH value: Gradually adjust the pH value of the solution using an acid-base regulator (hydrochloric acid or sodium hydroxide) until it is neutral;

[0020] S5. Mixing and stirring: Pour the dissolved sodium alginate solution into a container and stir with a stirrer until a uniform gel without particles is formed.

[0021] S6. Disinfection: Soak the gel dressing in a disinfectant (such as alcohol) to kill potential bacteria;

[0022] S7. Packaging and Storage: Pack the sterilized gel dressing and store it according to requirements.

[0023] Preferably, in step S3, a certain proportion of sodium alginate powder is added to deionized water to ensure its complete dissolution, specifically including the following steps:

[0024] a. Prepare sodium alginate powder and deionized water to ensure the materials are clean and sterile;

[0025] b. Accurately weigh the required amount of sodium alginate powder according to the amount of gel needed for preparation. The ratio can be determined according to the specific preparation requirements.

[0026] c. Choose a clean, sterile container, ensuring that the container is the right size for dissolving the required materials;

[0027] d. Gently add the accurately weighed sodium alginate powder to the deionized water in the solution container. It is recommended to add the powder to the water little by little rather than pouring it in a large amount.

[0028] e. Using a stirrer or stirring rod, gently stir the sodium alginate powder and water to ensure even mixing until dissolved.

[0029] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0030] 1. The present invention, through the setting of the connecting mechanism, can quickly cover the patient's wound with the material layer, reduce the operation time during dressing change, avoid the patient's wound being exposed on the surface for a long time and increase the risk of infection, and at the same time solve the problem that existing devices are prone to further irritating the tissues around the wound during the adhesion process, reduce the patient's pain and discomfort, and thus greatly increase the efficiency of the device.

[0031] 2、The setting of the disassembling mechanism can realize the quick disassembly of the connecting mechanism, can reduce the pulling or shearing of the wound during the disassembly process, reduces the risk of injury, so that the medical staff can conveniently observe the wound condition, clean and evaluate;

[0032] 3、The setting of the fluffy mechanism can help the patient to keep the wound ventilative, promote the oxygen into the wound, be conducive to the wound healing, and the appropriate air circulation can avoid the excessive wet environment around the wound, reduce the bleeding and exudation of the wound, and the appropriate air circulation can reduce the breeding opportunity of bacteria and reduce the risk of infection;

[0033] 4、The setting of the protection mechanism can realize the protection of the patient's wound, prevent the user from accidentally touching the wound and causing secondary injury to the wound, and can realize the buffering of the patient's wound, reduce the pain when touching the wound, and avoid the surrounding tissue of the wound from receiving additional pressure or friction. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0035] Figure 1 The structure schematic diagram of the sodium alginate hydrogel medical dressing provided by the present application is shown in the figure.

[0036] Figure 2 The structure schematic diagram of the sodium alginate hydrogel medical dressing provided by the present application is shown in the figure. Figure 1

[0037] Figure 3 The structure schematic diagram of the sodium alginate hydrogel medical dressing provided by the present application is shown in the figure. Figure 1

[0038] Figure 4 The structure schematic diagram of the sodium alginate hydrogel medical dressing provided by the present application is shown in the figure. Figure 1

[0039] Figure 5 The structure schematic diagram of the sodium alginate hydrogel medical dressing provided by the present application is shown in the figure. Figure 1

[0040] Figure 6 The structure schematic diagram of the sodium alginate hydrogel medical dressing provided by the present application is shown in the figure. Figure 1

[0041] Figure 7 The structure schematic diagram of the sodium alginate hydrogel medical dressing provided by the present application is shown in the figure. ​​​​​

[0042] Figure 8 Structure diagram of dismounting mechanism in sodium alginate hydrogel medical dressing provided by the present application;

[0043] Figure 9 Flow chart of preparation method of sodium alginate hydrogel medical dressing provided by the present application.

[0044] Explanation of reference signs:

[0045] 1, material body; 2, material layer; 3, installation layer; 4, buffer layer; 5, connecting layer; 6, first arc layer; 7, second arc layer; 8, soft layer; 9, connecting rod; 10, positioning layer; 11, fixed layer;

[0046] 21, material liquid part; 22, first air hole; 23, groove;

[0047] 31, second air hole; 32, mounting block; 33, open slot;

[0048] 41, third air hole; 42, connecting plate; 43, movable layer plate. DETAILED DESCRIPTION

[0049] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in combination with the drawings.

[0050] The technical solutions in the embodiments of the present application are to solve the above problems, and the general idea is as follows:

[0051] Embodiment 1

[0052] The specific structure of the present embodiment is shown in Figures 1-8 The sodium alginate hydrogel medical dressing includes: a material body 1, the bottom of the material body 1 is provided with a material layer 2, the bottom of the material layer 2 is fixed with a plurality of material liquid parts 21, the material liquid parts 21 store material liquid; a connecting mechanism, the connecting mechanism includes a connecting layer 5 fixed on one side of the material body 1 and a first arc layer 6 and a second arc layer 7 hinged on both sides of the connecting layer 5, the first arc layer 6 cooperates with the second arc layer 7, one side of the first arc layer 6 is fixed with a soft layer 8, one side of the second arc layer 7 is provided with a fixed layer 11, the soft layer 8 corresponds to the fixed layer 11, a deviation prevention mechanism is arranged between the soft layer 8 and the first arc layer 6 to prevent the soft layer 8 from deviating, the deviation prevention mechanism includes a positioning layer 10 fixed on one side of the first arc layer 6 and a through slot opened in the inside of the positioning layer 10, the soft layer 8 corresponds to the through slot.

[0053] By adopting the technical scheme, when in use, first, the material layer 2 is aligned with the wound of the patient, so that the material body 1 is attached to the limb part of the patient, the wound of the patient is sterilized by the material liquid stored in the material liquid part 21, then the connecting layer 5 is placed on the limb of the patient, the soft layer 8 is inserted into the through slot by the cooperation of the first arc layer 6 and the second arc layer 7, then the soft layer 8 corresponds to the fixed layer 11, so that the material body 1 is connected with the limb of the patient, by the mutual connection of the material body 1 and the limb of the patient, the material layer 2 can quickly cover the wound of the patient, the operation time in the dressing change process is reduced, the risk of infection of the patient due to long-time exposure of the wound to the surface is avoided, the problem that the existing device easily causes further irritation to the tissues around the wound in the adhesion process is solved, the pain and discomfort of the patient are reduced, and thus the efficiency of the device is greatly improved.

[0054] Embodiment 2

[0055] The specific structure of the embodiment is shown in Figs. Figure 7 and Figure 8 The dismounting mechanism is arranged between the soft layer 8 and the fixed layer 11 to facilitate dismounting of the soft layer 8, the dismounting mechanism comprises a through slot formed in the fixed layer 11 and a plug-in slot formed on one side of the through slot, a connecting rod 9 is inserted into the plug-in slot, a positioning mechanism is arranged between the connecting rod 9 and the soft layer 8 to position the soft layer 8, the positioning mechanism comprises a positioning slot formed in the soft layer 8 and a storage slot formed on one side of the fixed layer 11, the storage slot corresponds to the plug-in slot, and the connecting rod 9 corresponds to the positioning slot.

[0056] By adopting the technical scheme, when the material body 1 needs to be separated from the limb of the patient, the connecting rod 9 is first pulled out to be separated from the plug-in slot, the separation of the connecting rod 9 and the plug-in slot causes the connecting rod 9 to be separated from the storage slot, so that the connecting rod 9 and the positioning slot are separated from each other, then the soft layer 8 is pulled to be separated from the fixed layer 11, the separation of the soft layer 8 and the fixed layer 11 causes the soft layer 8 to be separated from the positioning layer 10, and the separation of the soft layer 8 and the positioning layer 10 can quickly dismount the first arc layer 6 and the second arc layer 7, which can reduce the pulling or shearing of the wound during the dismounting process and reduce the risk of injury, so that medical staff can conveniently observe the wound, clean and evaluate the wound.

[0057] Embodiment 3

[0058] The specific structure of the embodiment is shown in Figs. Figures 3-6As shown, the material layer 2 and the material body 1 are provided with a fluffing mechanism for fluffing the material layer 2, the fluffing mechanism comprises a mounting layer 3 mounted in the material body 1 and a first air permeable hole 22 opened in the material layer 2, the inside of the mounting layer 3 is provided with a second air permeable hole 31, the first air permeable hole 22 corresponds to the second air permeable hole 31, the material layer 2 and the mounting layer 3 are provided with a limiting mechanism, the limiting mechanism comprises a plurality of grooves 23 opened at the top of the material layer 2 and a plurality of mounting blocks 32 fixed at the bottom of the mounting layer 3, the plurality of mounting blocks 32 correspond to the plurality of grooves 23.

[0059] By adopting the above technical scheme: when the patient's wound is attached to the material layer 2, the mounting layer 3 drives the mounting block 32 to be attached synchronously, so that the mounting block 32 enters the inside of the groove 23, and through the mutual support of the mounting block 32 and the groove 23, the spacing between the mounting layer 3 and the material layer 2 is maintained, and through the maintenance of the spacing between the mounting layer 3 and the material layer 2, the patient's wound can be kept ventilated, oxygen can enter the wound, which is conducive to wound healing, and appropriate air circulation can avoid excessive moisture around the wound, reduce wound bleeding and exudation, and appropriate air circulation can reduce the opportunity for bacteria to breed and reduce the risk of infection.

[0060] Embodiment 4

[0061] The specific structure of the embodiment is as follows: Figures 3-6 As shown, the mounting layer 3 and the material body 1 are provided with a protection mechanism for protecting the material layer 2, the protection mechanism comprises a buffer layer 4 mounted in the material body 1 and a third air permeable hole 41 opened in the buffer layer 4, the third air permeable hole 41 corresponds to the first air permeable hole 22, the buffer layer 4 and the mounting layer 3 are provided with a moving mechanism for facilitating the up-and-down movement of the buffer layer 4, the moving mechanism comprises an opening slot 33 opened at the top of the mounting layer 3 and a movable layer plate 43 fixed at the bottom of the buffer layer 4, the movable layer plate 43 corresponds to the opening slot 33, and the buffer layer 4 and the material body 1 are provided with a connecting plate 42.

[0062] By adopting the above technical scheme: when the user accidentally touches the material body 1, the material body 1 drives the buffer layer 4 to move downward by inertia, the downward movement of the buffer layer 4 drives the synchronous downward movement of the movable layer plate 43, the downward movement of the movable layer plate 43 makes the movable layer plate 43 enter the opening slot 33, so that the buffer layer 4 no longer moves downward, and through the arrangement of the buffer layer 4, the patient's wound can be protected, the user accidentally touching the wound can be prevented, and the secondary damage to the wound can be avoided, and at the same time, the patient's wound can be buffered, the pain when the wound is touched can be reduced, and the surrounding tissues of the wound can be prevented from being subjected to additional pressure or friction.

[0063] In addition, the present application also provides a preparation method of the sodium alginate hydrogel medical dressing, which is used for preparing the above-mentioned sodium alginate hydrogel medical dressing, as shown in Figure 9As shown, comprising the following steps:

[0064] S1, prepare materials: take a certain amount of sodium alginate powder, deionized water, acid-base regulator (such as hydrochloric acid and sodium hydroxide), disinfectant (such as alcohol) and the like for standby;

[0065] S2, disinfect the materials: disinfect the vessels, containers and tools used to ensure sterile conditions during preparation and avoid bacterial contamination during preparation;

[0066] S3, soak sodium alginate: add a certain proportion of sodium alginate powder to deionized water to make it fully dissolved;

[0067] S4, adjust the pH value: use acid-base regulator (hydrochloric acid or sodium hydroxide) to gradually adjust the pH value of the solution until it is neutral;

[0068] S5, mix and stir: pour the dissolved sodium alginate solution into the container and stir with a stirrer until a uniform gel without particles is formed;

[0069] S6, disinfection: disinfect the gel dressing in disinfectant (such as alcohol) to kill potential bacteria;

[0070] S7, packaging and storage: package the disinfected gel dressing and store it according to requirements.

[0071] Further, in S3, a certain proportion of sodium alginate powder is added to deionized water to make it fully dissolved, which specifically includes the following steps:

[0072] a, prepare sodium alginate powder and deionized water to ensure that the materials are clean and sterile;

[0073] b, accurately weigh the required sodium alginate powder according to the amount of gel required for preparation, and the proportion can be determined according to the specific preparation requirements;

[0074] c, choose a clean and sterile container to ensure that the size of the container is suitable for the dissolution of the required materials;

[0075] d, gently add the accurately weighed sodium alginate powder to the deionized water in the solution container, it is recommended to add the powder to the water little by little rather than in a lump;

[0076] e, use a stirrer or stirring rod to gently stir the sodium alginate powder and water to ensure uniform mixing until dissolution.

[0077] The foregoing merely illustrates some exemplary embodiments of the application, and it will be appreciated that those skilled in the art will be able to devise various modifications without departing from the spirit and scope of the application. The appended drawings and description are illustrative only, and are not intended to be limiting.

Claims

1. A sodium alginate hydrogel medical dressing characterised in that, Include: The material body (1), the bottom of the material body (1) is provided with a material layer (2), and the bottom of the material layer (2) is fixed with a plurality of material liquid parts (21); The connecting mechanism includes a connecting layer (5) fixed on one side of the material body (1), and a first arc layer (6) and a second arc layer (7) hinged on both sides of the connecting layer (5), the first arc layer (6) and the second arc layer (7) cooperate, and one side of the first arc layer (6) is fixed with a soft layer (8), one side of the second arc layer (7) is provided with a fixed layer (11), and the soft layer (8) corresponds to the fixed layer (11).

2. The sodium alginate hydrogel medical dressing according to claim 1, characterized in that: The soft layer (8) and the fixed layer (11) are provided with a dismounting mechanism for dismounting the soft layer (8), the dismounting mechanism includes a through slot opened in the fixed layer (11) and a plug slot opened on one side of the through slot, and the plug slot is inserted with a connecting rod (9).

3. The sodium alginate hydrogel medical dressing according to claim 2, characterized in that: The connecting rod (9) and the soft layer (8) are provided with a positioning mechanism for positioning the soft layer (8), the positioning mechanism includes a positioning slot opened in the soft layer (8) and a receiving slot opened on one side of the fixed layer (11), the receiving slot corresponds to the plug slot, and the connecting rod (9) corresponds to the positioning slot.

4. The sodium alginate hydrogel medical dressing of claim 1, wherein: The soft layer (8) and the first arc layer (6) are provided with an anti-offset mechanism for preventing the soft layer (8) from offsetting, the anti-offset mechanism includes a positioning layer (10) fixed on one side of the first arc layer (6) and a through slot opened in the positioning layer (10), and the soft layer (8) corresponds to the through slot.

5. The sodium alginate hydrogel medical dressing of claim 1, wherein: The material layer (2) and the material body (1) are provided with a fluffing mechanism for fluffing the material layer (2), the fluffing mechanism includes a mounting layer (3) mounted in the material body (1) and a first air hole (22) opened in the material layer (2), a second air hole (31) is opened in the mounting layer (3), the first air hole (22) corresponds to the second air hole (31), and a limiting mechanism is arranged between the material layer (2) and the mounting layer (3).

6. The sodium alginate hydrogel medical dressing according to claim 5, wherein: The limiting mechanism includes a plurality of grooves (23) opened at the top of the material layer (2) and a plurality of mounting blocks (32) fixed at the bottom of the mounting layer (3), and the plurality of mounting blocks (32) correspond to the plurality of grooves (23).

7. The sodium alginate hydrogel medical dressing of claim 5, wherein: The mounting layer (3) and the material body (1) are provided with a protection mechanism for protecting the material layer (2), the protection mechanism includes a buffer layer (4) mounted in the material body (1) and a third air hole (41) opened in the buffer layer (4), the third air hole (41) corresponds to the first air hole (22), and a movable mechanism is arranged between the buffer layer (4) and the mounting layer (3) for facilitating the upward and downward movement of the buffer layer (4).

8. The sodium alginate hydrogel medical dressing according to claim 7, characterized in that: The movable mechanism includes an opening slot (33) opened at the top of the mounting layer (3) and a movable layer plate (43) fixed at the bottom of the buffer layer (4), the movable layer plate (43) corresponds to the opening slot (33), and a connecting plate (42) is mounted between the buffer layer (4) and the material body (1).

9. A method for the preparation of a sodium alginate hydrogel medical dressing, characterized in that, The method comprises the following steps: S1, prepare materials: take a certain amount of sodium alginate powder, deionized water, acid-base regulator (such as hydrochloric acid and sodium hydroxide), disinfectant (such as alcohol) and so on, for standby; S2, disinfect materials: disinfect the vessels, containers and tools used, ensure the sterile conditions in the preparation process, avoid the situation of bacterial contamination in the preparation process; S3, soak sodium alginate: add a certain proportion of sodium alginate powder to deionized water, so that it is fully dissolved; S4, adjust pH value: use acid-base regulator (hydrochloric acid or sodium hydroxide) to gradually adjust the pH value of the solution until it is adjusted to neutral; S5, mix and stir: pour the dissolved sodium alginate solution into the container, stir with the stirrer until a uniform gel without particles is formed; S6, disinfection: put the gel dressing into the disinfectant (such as alcohol) for disinfection treatment to kill potential bacteria; S7, packaging and storage: package the gel dressing after disinfection and store according to the requirements.

10. The method of claim 9, wherein the sodium alginate hydrogel medical dressing is prepared by the steps of: In S3, a certain proportion of sodium alginate powder is added to deionized water to make it fully dissolved, which specifically includes the following steps: a, prepare sodium alginate powder and deionized water to ensure the cleanliness and sterility of the materials; b, according to the required amount of gel, accurately weigh the required sodium alginate powder, the proportion can be determined according to the specific preparation requirements; c, choose a clean and sterile container to ensure that the size of the container is suitable for the dissolution of the required materials; d, gently add the accurately weighed sodium alginate powder to the deionized water in the solution container, it is recommended to add the powder to the water little by little instead of pouring a big pile; e, use a stirrer or stirring rod to gently stir the sodium alginate powder and water to ensure uniform mixing until dissolution.

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