Multifunctional detachable nitrofurazone external application assembly

By designing a detachable waterproof and breathable skin dressing component, the problems of fixation, adaptability, and functional deficiencies of existing devices have been solved, achieving stable fixation, convenient cleaning, and multifunctional therapeutic effects, thus improving the patient's user experience.

CN224523799UActive Publication Date: 2026-07-21SHANGHAI FIRST PEOPLES HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI FIRST PEOPLES HOSPITAL
Filing Date
2025-04-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing topical application devices for nitrates are insufficient in terms of fixation and adaptability, making it difficult to balance waterproofing and breathability. They cannot be disassembled for cleaning, lack hot and cold compress functions, and are inconvenient for dispensing medication and adapting to diverse treatment needs.

Method used

A multifunctional, detachable dermal dressing component has been designed, comprising a detachable waterproof and breathable surface, a receiving slot and a fixing strap, which are connected by Velcro or magnetic snaps. It supports ice or heat application, and the receiving cavity can be flexibly filled with medication to meet different treatment needs.

Benefits of technology

It achieves stable fixation of the external dressing bag, convenient cleaning, and uniform drug distribution, improving user comfort and treatment efficiency, adapting to the needs of different patients, and enhancing the portability and ease of use of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of medical apparatus and instruments, especially a kind of multifunctional detachable skin nitro external application subassembly, including external application bag and fixing band, external application bag includes detachable connection waterproof surface and breathable surface, waterproof surface or breathable surface is detachably connected with fixing band, waterproof surface includes multiple first accommodating grooves, breathable surface includes multiple second accommodating grooves, each first accommodating groove and each second accommodating groove one-to-one correspondence, and each first accommodating groove and each second accommodating groove are respectively enclosed to form accommodating cavity, and the both ends of fixing band are detachably connected. External application bag is divided into waterproof surface and breathable surface and is detachably connected with fixing band, can ensure the stable fixation of external application bag, can also satisfy the waterproof or breathable requirement of ice compress or hot compress to external application bag;External application bag two detachable designs make it can pour out medicine easily and be convenient for cleaning, effectively improve the durability and hygiene of external application bag;The tightness of fixing band can be adjusted according to different body shape and use site.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a multifunctional detachable skin dressing component. Background Technology

[0002] Topical application of Glauber's salt is a traditional medical treatment widely used for its effectiveness in reducing local inflammation, relieving pain, and promoting blood circulation. However, existing Glauber's salt application devices still have many limitations in function and design, failing to fully meet the diverse needs of modern medical and nursing scenarios.

[0003] First, traditional topical application devices have significant shortcomings in terms of fixation and adaptability. Many products use a single fixation method, making them prone to displacement or detachment during use, thus affecting the efficacy of the medication. Furthermore, the lack of adjustable tightness makes the devices difficult to adapt to patients of different body types and application sites, resulting in lower user comfort.

[0004] Secondly, existing technologies lack a balance in material selection and structural design. The difficulty in achieving both waterproofing and breathability is common; waterproof materials may cause skin irritation, while breathable materials are prone to medication leakage. Furthermore, most external dressing bags are typically fixed in design, making them difficult to disassemble and facilitating medication dispensing and equipment cleaning and maintenance, thus increasing the difficulty and burden on patients and caregivers.

[0005] More importantly, existing topical application devices suffer from significant limitations in functional expansion, particularly in their inability to integrate hot and cold compresses. The importance of hot and cold compresses in the medical field cannot be overlooked; cold compresses effectively relieve acute pain and swelling, while hot compresses promote blood circulation and accelerate drug absorption. Devices lacking hot and cold compress functionality struggle to meet diverse clinical treatment needs. Furthermore, existing application bags generally lack independently compartmentalized structures in their containment chamber design, allowing medication to easily move or accumulate within the bag, resulting in uneven drug distribution. Simultaneously, fixed-size application bags lack flexibility and cannot adapt to the needs of different patients. In terms of portability and ease of use, traditional topical devices are often cumbersome in design, hindering rapid operation and cleaning, causing considerable inconvenience for patients' home care and for medical personnel's daily use.

[0006] In summary, existing technologies have significant shortcomings in terms of fixation methods, material properties, ease of disassembly and cleaning, integration of hot and cold compress functions, multifunctionality, and optimization of patient experience. There is an urgent need for an innovative external application device that can fully meet the needs of modern medicine, so as to improve the efficiency and convenience of drug application and significantly improve the patient's user experience. Utility Model Content

[0007] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a multifunctional detachable nitrate topical application component to solve the problems of unstable fixation of nitrate topical application bags, difficulty in dispensing medicine, inability to disassemble and clean, and inability to simultaneously achieve waterproofing and breathability to meet the needs of ice or heat application.

[0008] To achieve the above and other related objectives, this utility model provides a multifunctional detachable dermatology external dressing component, including an external dressing bag and a fixing strap. The external dressing bag includes a detachably connected waterproof surface and a breathable surface, which are detachably connected to the fixing strap. The waterproof surface includes a plurality of first receiving grooves, and the breathable surface includes a plurality of second receiving grooves. Each first receiving groove and each second receiving groove corresponds to one another, and each first receiving groove and each second receiving groove respectively encloses a receiving cavity. The two ends of the fixing strap are detachably connected.

[0009] In some embodiments of this utility model, the waterproof surface and the fixing strap are connected by a second connector; the breathable surface and the fixing strap are connected by a third connector.

[0010] In some embodiments of this utility model, the second connector and the third connector are snaps or magnetic snaps.

[0011] In some embodiments of this utility model, the waterproof surface and the breathable surface are detachably connected by a plurality of first hook and loop fasteners. Each first hook and loop fastener includes a first hook and loop rough surface and a first hook and loop hook surface. Each first hook and loop rough surface is respectively disposed around the perimeter of the waterproof surface and between adjacent first receiving grooves, and each first hook and loop hook surface is respectively disposed around the perimeter of the breathable surface and between adjacent second receiving grooves.

[0012] In some embodiments of this utility model, each of the first receiving slots is arranged at equal intervals; each of the second receiving slots is arranged at equal intervals.

[0013] In some embodiments of this utility model, the two ends of the fixing strap are connected by a second hook and loop fastener, the second hook and loop fastener comprising a second hook and loop loop surface and a second hook and loop loop hook surface.

[0014] In some embodiments of this utility model, the width of the second hook and loop fastener surface is greater than the width of the second hook and loop fastener hook surface.

[0015] In some embodiments of this utility model, the capacity of the external dressing bag is 150-250mL.

[0016] In some embodiments of this utility model, the length of the outer dressing bag is 35-45cm and the width is 25-35cm.

[0017] In some embodiments of this utility model, the fixing strap is 75-100cm long and 25-45cm wide.

[0018] In some embodiments of this utility model, the number of receiving cavities is 4-6.

[0019] In some embodiments of this utility model, the waterproof surface is made of waterproof non-woven fabric, and the breathable surface is made of cotton fabric.

[0020] As described above, the multifunctional detachable skin dressing component of this utility model has the following beneficial effects:

[0021] 1) The external dressing bag of this utility model has a waterproof surface and a breathable surface, both of which are detachably connected to the fixing strap, which can ensure the stable fixation of the external dressing bag and meet the waterproof or breathable requirements of the external dressing bag for ice packs or hot packs.

[0022] 2) The breathable and waterproof surfaces of the external dressing bag of this utility model are designed to be detachable, making it easy to pour out medicines and easy to clean, effectively improving the durability and hygiene of the external dressing bag.

[0023] 3) The multiple cavities of this invention can effectively prevent drugs from concentrating or moving, ensure that the drug effect is uniformly applied to the target area, and flexibly adjust the amount and type of drugs stored to meet diverse treatment needs. Attached Figure Description

[0024] Figure 1 The diagram shows the structure of the external dressing bag and the fixing strap combined.

[0025] Figure 2 The diagram shows the structure of the waterproof and breathable outer surface (with the receiving groove on one side) of the present invention.

[0026] Component designation explanation

[0027] 1. External dressing bag

[0028] 11 Waterproof surface

[0029] 111 First Receiving Tank

[0030] 12 Breathable surfaces

[0031] 121 Second Receiving Tank

[0032] 2. Fixing strap

[0033] 3 First Velcro

[0034] 31 First Velcro Textured Surface

[0035] 32 First Velcro Hook Side

[0036] 4. Second Velcro

[0037] 41 Second Velcro Textured Surface

[0038] 42 Second Velcro Hook Side Detailed Implementation

[0039] The following specific embodiments 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.

[0040] Please see Figure 1-2 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0041] Please see Figure 1-2This utility model provides a multifunctional detachable skin dressing component, including an outer dressing bag 1 and a fixing strap 2. The outer dressing bag 1 includes a detachably connected waterproof surface 11 and a breathable surface 12. The waterproof surface 11 or the breathable surface 12 is detachably connected to the fixing strap 2. The waterproof surface 11 includes a plurality of first receiving grooves 111, and the breathable surface 12 includes a plurality of second receiving grooves 121. Each first receiving groove 111 and each second receiving groove 121 corresponds to one another, and each first receiving groove and each second receiving groove respectively encloses a receiving cavity. The two ends of the fixing strap 2 are detachably connected. In this embodiment, part of the receiving cavity is filled with sodium nitrate as the main therapeutic substance, while the remaining receiving cavities can be filled with different auxiliary items according to actual needs to cooperate with sodium nitrate and enhance its efficacy. For example, when the patient needs ice to lower the local temperature and work in conjunction with sodium nitrate to exert analgesia and reduce swelling, a refrigerated ice pack can be placed in the receiving cavity, and the waterproof side should be used to adhere to the patient's skin to avoid cold and wet penetration. When the patient needs heat to raise the local temperature and promote blood circulation, and work in conjunction with sodium nitrate to enhance the blood-activating and stasis-removing heat, a heating patch or heating gel pack can be placed in the receiving cavity, and the breathable side should be placed close to the patient's skin to ensure uniform heat conduction. In addition, herbal packs or medicine bags can be placed in the receiving cavity according to the patient's actual needs to work together with sodium nitrate to comprehensively exert the drug's efficacy to meet specific treatment goals.

[0042] Continue reading Figure 1-2 In this embodiment, the waterproof surface 11 and the fixing strap 2 are connected by a second connector; the breathable surface 12 and the fixing strap 2 are connected by a third connector. The second and third connectors are snaps or magnetic snaps. In a preferred embodiment, bottom buckles are provided around the sides of the waterproof surface 11 and the breathable surface 12 away from the first receiving groove 111 or the second receiving groove 121, and the fixing strap 2 is provided with female buckles that cooperate with the bottom buckles.

[0043] Continue reading Figure 1-2 In this embodiment, the waterproof surface 11 and the breathable surface 12 are detachably connected by multiple first hook and loop fasteners 3. Each first hook and loop fastener 3 includes a first hook and loop surface 31 and a first hook and loop surface 32. Each first hook and loop surface 31 is respectively disposed around the side of the waterproof surface 11 with the first receiving groove 111 and between adjacent first receiving grooves 111. Each first hook and loop surface 42 is respectively disposed around the side of the breathable surface 12 with the second receiving groove 121 and between adjacent second receiving grooves 121. Each first hook and loop surface 31 and each first hook and loop surface 32 corresponds one-to-one, ensuring that the waterproof surface 11 and the breathable surface 12 can be accurately bonded, and facilitating the disassembly and reassembly of the waterproof surface 11 and the breathable surface 12. In addition, by bonding each first hook and loop surface 31 and each first hook and loop surface 32, each first receiving groove 111 and each second receiving groove 121 are further enclosed to form a receiving cavity.

[0044] Please see Figure 2 In this embodiment, each of the first receiving slots 111 is equally spaced; each of the second receiving slots 121 is equally spaced.

[0045] Please see Figure 1-2 In this embodiment, the two ends of the fixing strap 2 are connected by a second hook and loop fastener 4, which includes a second hook and loop loop surface 41 and a second hook and loop hook surface 42. The width of the second hook and loop loop surface 41 is greater than the width of the second hook and loop hook surface 42. This design allows the user to precisely adjust the tightness of the fixing strap according to actual needs, thereby achieving optimal fit for different external application areas, such as the waist, abdomen, back, shoulders and neck, or legs.

[0046] In this embodiment, the capacity of the external dressing bag 1 is 150-250mL, which can be selected as 150-200mL or 200-250mL.

[0047] In this embodiment, the length of the outer bag 1 is 35-45cm, which can be 35-40cm or 40-45cm, and the width is 25-35cm, which can be 25-30cm or 30-35cm.

[0048] In this embodiment, the length of the fixing strap 2 is 75-100cm, which can be selected as 75-90cm, 85-100cm or 90-100cm, etc., and the width is 25-45cm, which can be selected as 25-30cm, 30-35cm, 35-40cm or 40-45cm.

[0049] In this embodiment, the number of accommodating cavities is 4-6, which can be selected as 4-5 or 5-6.

[0050] In this embodiment, the waterproof surface 11 is made of waterproof non-woven fabric, and the breathable surface 12 is made of cotton fabric.

[0051] The usage process of this utility model:

[0052] like Figure 1-2 As shown, the waterproof surface 11 and the breathable surface 12 of the outer dressing bag 1 are connected by first bonding the hook side 31 and the loop side 32 of the first Velcro, so that each first receiving groove 111 and each second receiving groove 121 are respectively enclosed to form a receiving cavity. Among them, some receiving cavities are fixedly filled with nitrate, and the remaining receiving cavities can be filled with appropriate auxiliary fillers according to the actual needs of the patient. For example: if ice packs are needed, refrigerated ice packs can be placed in the remaining receiving cavities and used together with nitrate to enhance the cold compress effect; if heat compresses are needed, heating patches or heated gel packs can be placed in the remaining receiving cavities to work synergistically with nitrate to exert the heat compress effect; if combined with other medicinal effects, traditional Chinese medicine packs such as herbal medicine bags or liquid medicine bags can be filled in.

[0053] When using, choose either the waterproof side 11 or the breathable side 12 to contact the patient's skin, depending on whether it's for ice or heat application, to ensure comfort and safety. Then, connect the connector on the other side of the dressing bag 1 to the fixing strap 2 to ensure the dressing bag 1 is stable and does not slip during use. Wrap the fixing strap 2 around the application area such as the waist, abdomen, back, neck, or legs, and adjust the second Velcro 4 at both ends of the fixing strap 2 to control the tightness, so that the dressing bag 1 fits snugly against the skin surface.

[0054] When applying ice, fill the cavity with a chilled ice pack and place the waterproof side (11) close to the skin. This, combined with sodium nitrate, will provide pain relief and reduce swelling. Each application should be limited to 15-20 minutes to avoid frostbite. When applying heat, place a heating patch or other heating item, such as a hot water bottle or heating gel pack, in the cavity and place the breathable side (12) close to the skin. This, combined with sodium nitrate, will promote blood circulation and reduce swelling. The application time should be 15-20 minutes to prevent burns.

[0055] After use, remove the fixation strap 2 from the patient, tear open the waterproof side 11 and the breathable side 12 of the outer dressing bag 1, pour out the blister pack and filler in the cavity, wash and dry the waterproof side 11 and the breathable side 12, and place them in a dry and ventilated place for the next use.

[0056] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A multifunctional detachable skin dressing component, characterized in that, The device includes an outer dressing bag (1) and a fixing strap (2). The outer dressing bag (1) includes a detachably connected waterproof surface (11) and a breathable surface (12). The waterproof surface (11) or the breathable surface (12) is detachably connected to the fixing strap (2). The waterproof surface (11) includes a plurality of first receiving grooves (111), and the breathable surface (12) includes a plurality of second receiving grooves (121). Each first receiving groove (111) and each second receiving groove (121) corresponds to one another, and each first receiving groove (111) and each second receiving groove (121) respectively encloses to form a receiving cavity. The two ends of the fixing strap (2) are detachably connected.

2. The multifunctional detachable skin dressing component as described in claim 1, characterized in that, The waterproof surface (11) and the fixing strap (2) are connected by a second connector; the breathable surface (12) and the fixing strap (2) are connected by a third connector.

3. The multifunctional detachable skin dressing component as described in claim 2, characterized in that, The second and third connectors are snaps or magnetic snaps.

4. The multifunctional detachable skin dressing component as described in claim 1, characterized in that, The waterproof surface (11) and the breathable surface (12) are detachably connected by a plurality of first hook and loop fasteners (3). Each first hook and loop fastener (3) includes a first hook and loop hook surface (31) and a first hook and loop hook surface (32). Each first hook and loop hook surface (31) is respectively disposed around the perimeter of the waterproof surface (11) and between the adjacent first receiving groove (111). Each first hook and loop hook surface (32) is respectively disposed around the perimeter of the breathable surface (12) and between the adjacent second receiving groove (121).

5. The multifunctional detachable skin dressing assembly as described in claim 1, characterized in that, Each of the first receiving slots (111) is equally spaced; each of the second receiving slots (121) is equally spaced.

6. The multifunctional detachable skin dressing assembly as described in claim 1, characterized in that, The two ends of the fixing strap (2) are connected by a second hook and loop fastener (4), which includes a second hook and loop loop surface (41) and a second hook and loop hook surface (42).

7. The multifunctional detachable skin dressing component as described in claim 6, characterized in that, The width of the second hook and loop side (41) is greater than the width of the second hook and loop side (42).

8. The multifunctional detachable skin dressing component as described in claim 1, characterized in that, Includes one or more of the following features: A1) The length of the external dressing bag (1) is 35-45cm and the width is 25-35cm; A2) The capacity of the external dressing bag (1) is 150-250mL; A3) The length of the fixing strap (2) is 75-100cm and the width is 25-45cm.

9. The multifunctional detachable skin dressing component as described in claim 1, characterized in that, The number of accommodating cavities is 4-6.

10. The multifunctional detachable skin dressing assembly as described in claim 1, characterized in that, The waterproof surface (11) is made of waterproof non-woven fabric, and the breathable surface (12) is made of cotton fabric.