A portable insulated bag for refrigerating medicines

Abstract

This invention provides a portable insulated bag for refrigerating medicines, comprising a handle and a bag body. The handle is located at the top of the bag body. The bag body includes an inner lining layer, a sealing and insulating layer, and an outer lining layer arranged layer by layer from the inside out. An internal cavity for storing medicines is formed within the bag body, and a first, closable opening is provided at the top of the cavity. At least one waterproof isolation bag is provided on at least one side of the cavity, between the inner lining layer and the sealing and insulating layer. The waterproof isolation bag has a second, closable opening for placing the refrigeration component. This invention's insulated bag, with its waterproof isolation bag and cavity, allows for separate placement of the refrigeration component and medicines. The second opening mechanism allows for flexible replacement of the internal refrigeration component, which helps extend the refrigeration time of the medicines. The waterproof isolation bag also isolates moisture or condensation from the surface of the refrigeration component, maintaining a dry, low-temperature environment inside the bag body for long-term medicine storage.

Description

Technical Field

[0001] This utility model relates to the field of long-term drug refrigeration technology, and in particular to a portable insulated bag for refrigerating drugs. Background Technology

[0002] With the continuous advancement of medicine and technology, drugs such as insulin and antibiotics are widely used to treat related diseases. However, the quality of these drugs is easily affected by temperature; excessively high or low temperatures can cause them to deteriorate and become ineffective, resulting in losses. Therefore, drug transportation must be carried out under strictly controlled conditions to ensure that the drug's shelf life and efficacy are not compromised. A crucial aspect of this is maintaining a consistently low and constant temperature.

[0003] Some medications provided by hospitals or medical institutions require refrigeration, but due to transportation or temporary storage limitations, patients may need to take them home for self-use. While some bags with built-in ice packs on the market do offer some insulation, they face technical challenges and limitations, such as limited insulation, humidity control issues, and difficulties in cleaning and maintenance. These bags typically use insulation materials and ice packs to slow temperature rise, but due to technical limitations or design issues, the insulation time is short, insufficient for long-term medication storage, and cannot meet the needs of common scenarios such as short business trips or travel. Moisture diffusion or condensation inside the ice pack can increase humidity, which is detrimental to the long-term storage of some medications, easily leading to bacterial growth, contamination, or spoilage. Due to the complexity of the bag design or material properties, cleaning and maintenance can be troublesome, increasing user costs and inconvenience. Utility Model Content

[0004] In view of this, the present invention provides a portable insulated bag for refrigerating medicines to eliminate or improve one or more defects existing in the prior art.

[0005] This utility model provides a portable insulated bag for refrigerating medicines. The insulated bag includes a handle and a bag body. The handle is located at the top of the bag body. The bag body includes an inner lining layer, a sealing and insulating layer, and an outer lining layer arranged layer by layer from the inside to the outside. A cavity for storing medicines is formed inside the bag body. The bag body has an openable and closable first opening structure at the top of the cavity. At least one waterproof isolation bag is provided on at least one side of the cavity, between the inner lining layer and the sealing and insulating layer. The waterproof isolation bag has an openable and closable second opening structure for placing a refrigeration component.

[0006] In some embodiments of this utility model, two waterproof isolation bags are symmetrically arranged, respectively disposed on the two largest sides of the bag body; the length of the waterproof isolation bag is configured to be 50%-90% of the length of the bag body, and the height of the waterproof isolation bag is configured to be 50%-90% of the height of the bag body.

[0007] In some embodiments of this utility model, the waterproof isolation bag includes at least one of a first waterproof isolation bag, a second waterproof isolation bag, and a third waterproof isolation bag; the first waterproof isolation bag is disposed on the front and / or rear side of the cavity, the second waterproof isolation bag is disposed on the left and / or right side of the cavity, and the third waterproof isolation bag is disposed at the bottom of the cavity.

[0008] In some embodiments of this invention, the size and shape of the sealing and insulating layer are configured to cover the waterproof isolation bag and the cavity located inside it.

[0009] In some embodiments of this utility model, the package body further includes a partition fabric disposed between the waterproof isolation bag and the inner lining layer, the position and size of the partition fabric corresponding to the side of the waterproof isolation bag.

[0010] In some embodiments of this utility model, the interlayer cloth is made of cotton or linen; the waterproof isolation bag is made of TPU waterproof material or polyethylene material; the sealing and heat-insulating layer is made of heat-insulating cotton and / or heat-insulating aluminum foil; and the thickness of the sealing and heat-insulating layer is configured to be greater than the thickness of the interlayer cloth.

[0011] In some embodiments of this utility model, the first opening structure includes a zipper head, a sealing strip, and a chain belt; the inner side of the chain belt is fixedly connected to the inner lining layer, and the outer side of the chain belt is fixedly connected to the outer lining layer; the sealing strip is disposed on the outer side and / or inner side of the chain belt to seal the gaps on the surface of the chain belt.

[0012] In some embodiments of this utility model, the second opening structure is located on the side wall of the inner lining layer; the outer side of the second opening structure is fixedly connected to the inner lining layer, and the inner side of the second opening structure is fixedly connected to the waterproof isolation bag; the second opening structure is used to open or close the waterproof isolation bag to take out or put in the refrigeration component inside the waterproof isolation bag; the second opening structure is a zipper structure, a magnetic attraction structure, or an adhesive structure.

[0013] In some embodiments of this utility model, the length of the lower part of the package body is configured to be greater than the length of the upper part of the package body; the width of the lower part of the package body is configured to be greater than the width of the upper part of the package body; side panels are provided on both opposite sides of the outer side of the package body along the length direction, the side panels protrude from both sides of the package body, and the upper and lower ends of the side panels are respectively connected to the top and bottom of the package body; the package body also includes a tray, the tray is a straight plate structure, used to be disposed at the bottom of the package body and connected to the bottom surface of the package body.

[0014] In some embodiments of this utility model, the handle is provided with a handle pull; the insulated bag also includes a shoulder strap that can be attached, and the top two sides of the bag body are provided with pull rings or buckles for connecting the shoulder strap.

[0015] This utility model provides a portable insulated bag for refrigerating medicines. The bag has a waterproof isolation bag and a chamber inside, which can separate the refrigeration components and medicines. The internal refrigeration components can be flexibly replaced through a second opening mechanism, which helps to extend the refrigeration time of the medicines. The waterproof isolation bag can also isolate moisture or condensation on the surface of the refrigeration components, keeping the inside of the bag dry and at a low temperature for long-term storage of medicines.

[0016] Additional advantages, objects, and features of this invention will be set forth in part in the description which follows, and will in part become apparent to those skilled in the art upon review of the description, or may be learned by practice of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures specifically pointed out in the description and drawings.

[0017] Those skilled in the art will understand that the objectives and advantages achievable with this invention are not limited to those specifically described above, and that the above and other objectives achievable with this invention will become clearer from the following detailed description. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute a limitation thereof. The components in the drawings are not drawn to scale but are merely for illustrating the principles of the present invention. For ease of illustration and description of certain parts of the present invention, corresponding portions in the drawings may be enlarged, i.e., may appear larger relative to other components in an exemplary device actually manufactured according to the present invention.

[0019] Figure 1 This is a three-dimensional structural diagram of the thermal insulation bag in an embodiment of this utility model.

[0020] Figure 2 This is a cross-sectional view of the package body of this utility model from a side perspective.

[0021] Figure 3 This is a cross-sectional view of the package body from a side perspective in Embodiment 1 of this utility model.

[0022] Figure 4 This is a cross-sectional view of the package body from a side perspective in Embodiment 2 of this utility model.

[0023] Figure 5 This is a cross-sectional view of the package body from a side perspective in Embodiment 3 of this utility model.

[0024] Figure 6 This is a three-dimensional structural diagram of the package body and waterproof isolation bag in an embodiment of this utility model.

[0025] Figure label:

[0026] 1. Handle; 11. Handle pull tab; 2. Bag body; 21. First opening structure; 211. Zipper pull; 212. Sealing strip; 22. Inner lining layer; 23. Outer lining layer; 24. Cavity; 25. Waterproof isolation bag; 25-a. First waterproof isolation bag; 25-b. Second waterproof isolation bag; 25-c. Third waterproof isolation bag; 251. Second opening structure; 26. Sealing and insulation layer; 27. Divider fabric; 3. Side panel; 4. Tray. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0028] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0029] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, element, step, or component, but does not exclude the presence or addition of one or more other features, elements, steps, or components.

[0030] It should also be noted that, unless otherwise specified, the term "connection" in this article can refer not only to a direct connection, but also to an indirect connection involving an intermediary.

[0031] In the following description, embodiments of the present invention will be illustrated with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar parts, or the same or similar steps.

[0032] This utility model provides a portable insulated bag (hereinafter referred to as an insulated bag) for refrigerating medicines, such as Figure 1 As shown, the insulated bag includes a handle 1 and a bag body 2. The handle 1 is located on the top of the bag body 2, and the structure of the handle 1 facilitates the daily use and carrying of the insulated bag body 2.

[0033] like Figure 2 As shown, the package 2 includes an inner lining layer 22, a sealing and heat-insulating layer 26, and an outer lining layer 23 arranged layer by layer from the inside to the outside. The multi-layer structure is beneficial to improving the heat preservation effect of the package and extending the refrigeration time.

[0034] Furthermore, the package 2 has an internal cavity 24 for storing medication, and the package 2 has an openable and closable first opening structure 21 at the top of the cavity 24. At least one waterproof isolation bag 25 is provided on at least one side of the cavity 24, between the inner lining layer 22 and the sealing insulation layer 26. The waterproof isolation bag 25 has an openable and closable second opening structure 251 for placing the refrigeration component. The cavity 24 and the waterproof isolation bag 25 allow for separate placement of the refrigeration component and medication inside the package, improving the uniformity of temperature distribution within the package and extending the medication's refrigeration time. The first opening structure 21 and the second opening structure 251 also allow for easy replacement of the internal refrigeration component during use, increasing the flexibility of the package. By replacing the refrigeration component with a new one inside the waterproof isolation bag 25 during medication refrigeration, the refrigeration time of the package 2 can be effectively extended.

[0035] Alternatively, the overall design of the insulated bag is more similar to a regular handbag. If it is not used with a refrigeration unit, the insulated bag can be used as an everyday handbag; if it is used with a refrigeration unit, it can achieve the function of keeping items warm and storing them.

[0036] The refrigeration components used in conjunction with the insulated pack can be selected and replaced according to different usage scenarios and needs. For example, ice packs can be used when refrigeration is required; heating packs or hot water bottles can be used when room temperature storage is required; or refrigeration components can be used only for placing items.

[0037] As a feasible method, in scenarios where the insulated bag needs to store items at a temperature higher than the ambient temperature, the items that can be stored inside the bag body 2 are hot drinks or hot food. A heating pack or hot water bottle is placed inside the waterproof isolation bag 25. The heat source inside the bag radiates heat outward to supplement the heat inside the bag body 2, thereby increasing the heat preservation time of the bag body 2 and keeping the internal cavity 24 of the bag body 2 at a higher temperature than the outside. In addition, the inner lining layer 22, the sealing insulation layer (26), and the outer lining layer 23 of the multi-layer structure of the bag body 2 also have a heat preservation function, which can reduce the heat exchange between the inside and outside of the bag body 2 and improve the heat preservation effect. The insulated bag can keep takeout, beverages, food and other items warm in cold environments. By reducing the rate of internal heat loss through the heat storage and heat preservation function of the insulated bag, the heat preservation time of the internal items is extended.

[0038] As another feasible approach, the insulated bag can also be used in scenarios requiring low-temperature refrigeration of items. The bag body 2 can store refrigerated medicines, fresh fruits, chilled beverages, and other items whose own temperature is lower than the ambient temperature. In this case, heat from the external environment will enter the bag body 2 through the insulated bag, causing the temperature of the stored items inside to rise. By incorporating a cooling element that releases cold air to provide cooling to the inside of the bag body 2, the internal temperature of the bag body 2 can be effectively reduced, increasing the cold storage time and maintaining the internal cavity 24 of the bag body 2 at a temperature lower than the external environment. The cooling element used to release cold air can be ice packs, cold storage agents, or dry ice. Insulated bags using the above-mentioned cooling elements can store medicines, fruits, food, beverages, and other items at low temperatures in hot environments. Through the cold storage and insulation effect of the insulated bag, the amount of cold air diffusing from the inside to the external environment is reduced, extending the refrigeration time of the bag. Medicines stored inside the bag remain stable and do not easily change in low-temperature environments, while refrigerated fruits, beverages, and other foods not only maintain their good taste but also prevent spoilage in low-temperature environments.

[0039] Taking the use of ice packs for low-temperature refrigerated drugs and refrigeration components as an example, the following explanation further illustrates this utility model in conjunction with the specific structure of the insulated bag.

[0040] In daily life, medications requiring low-temperature storage typically need to be stored within a specific temperature range to ensure their stability and efficacy. Common types of medications that require low-temperature storage include specific diabetes medications, such as some insulins or other injectable drugs, vaccines, certain antibiotics, blood products, heat-sensitive therapeutic drugs, DNA or RNA samples, biological drugs, growth factors, and cell cultures.

[0041] When in use, the medication is placed into the cavity 24 of the pack body 2 through the first opening structure 21. After the first opening structure 21 is closed, the cavity 24 is isolated from the external environment. The ice pack enters the waterproof isolation bag 25 through the first opening structure 21 and the second opening structure 251. The cold released by the ice pack diffuses through the waterproof isolation bag 25 to the inner lining layer 22, which then transfers the cold to the cavity 24 to lower the temperature around the medication. The outer lining layer 23 provides the pack body 2 with an integral external structure, increasing its structural stability and durability. During refrigeration, moisture or condensation may occur around the ice pack. The waterproof isolation bag 25 traps this moisture or condensation within its internal space, preventing it from entering the cavity 24 where the medication is stored. This helps maintain a dry environment inside the pack body 2, preventing bacterial growth or contamination of the medication. When the amount of cold released by the refrigeration component decreases or the cold storage effect of the insulation bag no longer meets the refrigeration requirements, a new refrigeration component can be replaced inside the waterproof isolation bag 25 through the second opening structure 251, which can extend the refrigeration time of the insulation bag. The cavity 24 of the insulation bag is used to store refrigerated medicines, and the waterproof isolation bag 25 is used to place the refrigeration component. By placing the refrigerated medicines and the refrigeration component separately inside the insulation bag, compared to placing the refrigerated medicines and the refrigeration component together, the body of the insulation bag allows the cold energy of the refrigeration component to be evenly distributed inside the insulation bag, which can extend the refrigeration time of the insulation bag and also improve the uniformity of temperature distribution inside the cavity 24.

[0042] like Figure 2 As shown, the waterproof isolation bag 25 is located between the inner lining layer 22 and the sealing insulation layer 26. The sealing insulation layer 26 can maintain a relatively stable temperature environment for the cavity 24 and the waterproof isolation bag 25 inside, ensuring the overall insulation performance of the insulation bag. The inner lining layer 22 has a certain barrier function, which can prevent cold air from directly diffusing into the air when the cavity 24 is opened, thus avoiding waste of cold air. The second opening structure 251 is set on the inner wall of the cavity 24, which can prevent the cold air from the waterproof isolation bag 25 from directly entering the air. The cold air emitted from the second opening structure 251 can still flow inside the cavity 24, avoiding waste of cold air and improving the cold storage effect.

[0043] The aforementioned waterproof isolation bag 25 prevents internal moisture diffusion and condensation penetration. The waterproof isolation bag 25 can be made of materials such as TPU waterproof membrane, PTFE waterproof membrane, or polyethylene plastic. Both TPU and PTFE waterproof membranes are high-molecular waterproof materials with excellent waterproofness and toughness. During the use of refrigeration components, due to the temperature difference between the inside and outside, a large amount of moisture easily forms inside the waterproof isolation bag 25. The condensation formed after the moisture accumulates not only wets the internal medication, affecting its quality, but also wets the package 2, which can easily lead to bacterial growth inside the package 2 with long-term use. Therefore, the waterproof isolation bag 25 prevents moisture diffusion from the ice pack. Moisture or condensation accumulates inside the waterproof isolation bag 25 and does not diffuse to other areas, solving the moisture diffusion problem and facilitating daily cleaning. Furthermore, due to the good toughness of TPU and PTFE waterproof membranes, the waterproof isolation bag 25 can be thinner while maintaining the same structural strength, which is beneficial for improving the efficiency of cold energy transfer.

[0044] As at least one feasible approach, the outer lining layer 23 can be made of fine-textured Oxford cloth, which is waterproof, breathable, windproof, and cold-resistant. Its placement on the outer layer of the bag body 2 provides a certain degree of barrier function. Simultaneously, the outer lining layer 23 also has good abrasion resistance and durability, which helps increase the service life of the bag body 2. The inner lining layer 22 can be made of polyester fabric. Polyester fabric has a low moisture absorption rate and does not easily absorb water, while also possessing a certain degree of insulation. Its placement on the inner layer of the bag body 2 can improve the cold storage performance of the bag body 2.

[0045] It's important to note that lower storage temperatures are not always better for thermal packs. The temperature inside the thermal pack's cavity should be maintained within a suitable range. For biological products, blood products, insulin, vaccines, and most targeted therapies and monoclonal antibodies, ambient temperature has a significant impact. If the temperature is too low, the drug may freeze and thaw, causing changes in some drug properties, potentially leading to denaturation or inactivation. Conversely, if the temperature is too high, it may affect drug quality, causing loss of activity or denaturation, thus impacting efficacy. By combining thermal packs with different types and quantities of cooling components for different usage scenarios, the internal temperature of the thermal pack can be maintained within varying ranges to meet the storage needs of different items and usage scenarios.

[0046] In some embodiments, such as Figures 3 to 4 As shown, the waterproof isolation bag 25 includes at least one of a first waterproof isolation bag 25-a, a second waterproof isolation bag 25-b, and a third waterproof isolation bag 25-c; the first waterproof isolation bag 25-a is disposed on the front and / or rear side of the cavity 24, the second waterproof isolation bag 25-b is disposed on the left and / or right side of the cavity 24, and the third waterproof isolation bag 25-c is disposed at the bottom of the cavity 24.

[0047] Depending on the number or location of the waterproof isolation bags 25, the body 2 of the insulated bag has different embodiments. Embodiment 1 of the insulated bag body 2 is as follows: Figure 3 As shown, a first waterproof isolation bag 25-a is provided, located on one of the largest sides of the bag body 2, for installing a cold storage ice bag to reduce the internal temperature environment of the bag body 2; Embodiment 2 of the insulated bag body 2 is as follows. Figure 4 As shown, two first waterproof isolation bags 25-a are provided, and the two first waterproof isolation bags 25-a are placed on the two largest sides of the bag body 2, which helps to increase the cold capacity inside the bag body 2 and improve the cold storage effect; Embodiment 3 of the heat-insulating bag body 2 is as follows Figure 5 As shown, two first waterproof isolation bags 25-a are provided, and the two first waterproof isolation bags 25-a are provided on the two largest sides of the package body 2. The third waterproof isolation bag 25-c is provided on the bottom surface of the package body 2. During operation, the sides and bottom surfaces of the cavity 24 are covered by cold air. The advantage of providing waterproof isolation bags 25 at the bottom of the cavity 24 is that the ice pack is directly installed at the bottom of the cavity 24, and the cold air diffuses to the upper part of the package body 2, so that most of the cold energy can be transferred upward to the interior of the cavity 24. As a result, the cooling efficiency of the ice pack at the bottom is higher than that of the ice pack at the side. Therefore, the structure of the insulated package body 2 in Embodiment 3 is suitable for scenarios where drugs need to be stored for a long time.

[0048] In order to increase the number of cooling components inside the package 2, the waterproof isolation bags 25 can be set not only on the front and back sides of the cavity 24, but also on the left and right sides of the cavity 24. Ice packs are placed around the cavity 24 so that the cold air diffused by the cooling components surrounds the space around the cavity 24, which can increase the internal cooling capacity of the package 2.

[0049] In real-world applications, medications requiring low-temperature storage typically need to be kept within a specific temperature range to ensure their stability and efficacy. Since different medications exhibit varying degrees of temperature sensitivity, the specific temperature range for low-temperature storage differs. Specifically, a temperature range of 2°C to 8°C is suitable for storing medications in a cool place, applicable to drugs that are relatively sensitive to temperature, such as insulin, vaccines, or biological samples; while a temperature range of 8°C to 15°C is suitable for storing medications in a cool, dark place, applicable to medications that are less affected by temperature.

[0050] During use, the cooling capacity inside the cavity 24 can be adjusted by increasing or decreasing the number of cooling components inside the package 2, allowing the internal temperature of the cavity 24 to reach different specific temperature ranges. For example, with one ice pack inside the insulated package, the temperature range of the cavity 24 is maintained between 8°C and 15°C, providing a cool storage environment for the medication; with two ice packs inside the insulated package, the temperature range of the cavity 24 is maintained between 2°C and 8°C, providing a cold storage environment for the medication. Users can flexibly adjust the number of ice packs according to their actual insulation needs.

[0051] In some embodiments, two waterproof isolation bags 25 are symmetrically arranged, respectively disposed on the two largest sides of the package body 2. The placement of the two waterproof isolation bags 25 on the two largest sides of the inner wall of the package body 2 increases the effective area and volume of the ice pack, thereby increasing the contact area between the ice pack and the package body 2, which in turn increases the internal cooling capacity and improves the cold storage efficiency. Furthermore, the symmetrical arrangement of the two waterproof isolation bags 25 also helps to balance the temperature at different locations within the cavity 24, ensuring a uniform temperature distribution within the cavity 24 during cold air diffusion and improving the cold storage effect.

[0052] Furthermore, such as Figure 6 As shown, the length of the waterproof isolation bag 25 is designed to be 50%-90% of the length of the package body 2, and the height of the waterproof isolation bag 25 is designed to be 50%-90% of the height of the package body 2. The waterproof isolation bag 25 is set along the inner wall of the package body 2, and its length and height are both greater than half the size of the package body 2, so that the waterproof isolation bag 25 has a larger surface area and can cover a larger area of ​​the cavity 24. The refrigeration component mainly transfers cold energy to its outside through the surface of the waterproof isolation bag 25. Increasing the surface area of ​​the waterproof isolation bag 25 can not only improve the cold energy transfer efficiency of the refrigeration component and make the temperature inside the cavity 24 drop rapidly, but also increase the cold storage capacity and improve the cold storage effect.

[0053] In some embodiments, the second opening structure 251 is disposed on the inner wall of the side of the bag body 2. The second opening structure 251 is a waterproof zipper pull 211, a magnetic attraction structure, or an adhesive structure. The second opening structure 251 is used to quickly open or close the waterproof isolation bag 25 when replacing the refrigeration component. The second opening structure 251 adopts a waterproof zipper pull 211 structure, and a sealing strip 212 is provided on the chain surface of the waterproof zipper pull 211. After the zipper pull 211 is closed, the sealing strips 212 stick together to prevent water vapor from entering or leaving. The waterproof zipper pull 211 is easy to operate and has good sealing performance. Therefore, the waterproof zipper pull 211 is suitable for scenarios where the second opening structure 251 has waterproof requirements and requires one-handed operation. The second opening structure 251 adopts a magnetic attraction structure, with two attraction structures respectively disposed on both sides of the second opening structure 251. Magnets or magnetic strips are provided on the attraction structures. The two magnetic attraction structures can adhere to each other under the action of magnetic force, thereby closing the second opening structure 251. The magnetic attraction structure is simple and reliable, and can realize the automatic closing of the waterproof isolation bag 25. It is suitable for use scenarios where the second opening structure 251 needs to be opened and closed frequently. The second opening structure 251 adopts an adhesive structure. The two adhesive structures are respectively set on both sides of the second opening structure 251. The adhesive structures are adhesive. After the two adhesive structures are attached, they are bonded together, so that the second opening structure 251 is closed. The adhesive structure is firmly bonded and has high stability after being attached. It is suitable for use scenarios where the ice pack is large or the stability requirement is high.

[0054] In some embodiments, such as Figure 2 As shown, the size and shape of the sealing insulation layer 26 are configured to cover the waterproof isolation bag 25 and the cavity 24 located inside it. By enclosing the ice pack inside the waterproof isolation bag (25) and the medicine inside the cavity 24 in a single space through the insulation layer 26, the energy of the ice pack diffusing to the outside can be reduced, which is beneficial to extending the refrigeration time of the medicine.

[0055] Furthermore, the sealing insulation layer 26 can be made of insulation cotton or heat-insulating aluminum foil, so that the sealing insulation layer 26 can minimize cold loss and reduce energy exchange with the external environment. The sealing insulation layer 26 can reduce the heat entering the interior of the package 2 from the outside, and can also reduce the cold energy diffusing from the inside of the package 2 to the outside, which helps to reduce energy loss and extend the refrigeration time of the package.

[0056] As an alternative approach, the sealing insulation layer 26 can also employ an outer layer of insulation cotton and an inner layer of insulating aluminum foil. This reduces energy radiation from the ice pack to the external environment, minimizing cold loss. Aluminum foil also possesses moisture-proof, airtight, light-blocking, and non-toxic properties, effectively shielding the package from moisture, air, and bacteria. This isolates the internal and external environments of the package from light, moisture, and air, contributing to a stable internal environment. The aluminum foil sealing layer 27 effectively prevents the entry of external dust, moisture, and bacteria, ensuring drug storage quality and extending the cold storage time of the package. Furthermore, the light-blocking properties of aluminum foil align with the requirements for light-protected drug storage.

[0057] In some embodiments, such as Figure 2 As shown, the package also includes a partition cloth 27 disposed between the waterproof isolation bag 25 and the inner lining layer 22. The partition cloth 27 is used to isolate the direct contact between the waterproof isolation bag 25 and the inner lining layer 22, thereby slowing down the direct transmission of cold energy and extending the refrigeration time. Some of the cold energy around the ice pack can pass through the partition cloth 27 and slowly enter the cavity 24, which helps to extend the release time of cold energy and extend the refrigeration time of the medicine inside the package 2.

[0058] Furthermore, the position and size of the partition fabric 27 correspond to the side of the waterproof isolation bag 25. The partition fabric 27 is positioned on the side of the waterproof isolation bag 25, covering the side area of ​​the waterproof isolation bag 25. This creates a contact isolation effect between the waterproof isolation bag 25 and the inner lining layer 22, preventing direct contact between the two and preventing direct cold transfer. This helps improve the uniformity of temperature distribution inside the cavity 24. It is understood that the partition fabric 27 does not completely block the transfer of cold to the internal cavity 24; it only serves as a contact isolation and slows down cold transfer, which helps extend the refrigeration time of the package.

[0059] Furthermore, the partition fabric 27 is made of breathable materials such as cotton or linen to slow down the transfer of cold energy while ensuring contact isolation and preventing direct transmission of cold energy.

[0060] Common insulin medications are highly sensitive to refrigeration temperatures. During refrigeration, ice packs and refrigerated medications come into close contact, and the low surface temperature of the ice packs can easily cause the medications to denature or freeze. The insulating cloth 27 placed between the ice pack and the medication provides physical isolation, preventing direct contact and reducing the probability of denaturation or freezing. This also prevents the medication inside the cavity 24 from freezing, thus extending the refrigeration time of the package. The insulating cloth 27 also slows down the transfer of cold air. By slowing down the inward flow of cold air, it prevents rapid temperature changes around the medication, improves the stability of the temperature environment, and increases the duration of the cold effect, further extending the refrigeration time of the medication.

[0061] The sealed insulation layer 26 on the outside of the ice pack and the refrigerated medicine reduces the amount of cold energy dissipated into the external environment. The partition cloth 27 between the ice pack and the refrigerated medicine prevents direct transmission of cold energy between the waterproof isolation bag 25 and the cavity, keeping the surface temperature of the medicine within a refrigeration temperature range higher than that of the ice pack. Without significant outward expansion of the ice pack's cold energy, the area around the refrigerated medicine maintains an ideal refrigeration temperature higher than that of the ice pack, eliminating the need for excessively low temperatures and extending the refrigeration time of the insulated bag.

[0062] Furthermore, the partition cloth 27 covers the surface of the waterproof isolation bag 25 and also plays a role in guiding the uniform diffusion of cold energy. After the cold air passes through the partition cloth 27, due to the structural characteristics of the partition cloth 27, the diffusion mode changes from the original central divergence to surface divergence. The cold energy is transferred along the surface of the partition cloth 27 and evenly transferred to the surrounding area of ​​the drug along the side of the wall. The uniform temperature distribution on the surface of the partition cloth 27 is conducive to maintaining the temperature balance inside the cavity 24.

[0063] In some embodiments, the thickness of the sealing and insulation layer 26 is configured to be greater than the thickness of the interlayer fabric 27. For example... Figure 2 As shown, the sealed insulation layer 26 inside the insulated bag is located on the outside of the ice pack and the refrigerated medicine. Because the sealed insulation layer 26 uses high-quality insulating materials such as insulating cotton and is relatively thick, its insulation performance is far superior to that of the thinner interlayer fabric 27 made of cotton cloth or breathable fiber materials. This results in a lower heat transfer efficiency on the outer side of the ice pack compared to the inner side, which helps prevent cold air from dissipating outwards. Although the cold air of the ice pack is blocked by the interlayer fabric 27 during transmission, the overall trend of internal cold air transmission remains unchanged due to the enveloping and insulating effect of the outer sealed insulation layer 26.

[0064] In some embodiments, the first opening structure 21 is disposed at the opening position on the upper part of the bag body. The first opening structure 21 includes a zipper head 211, a sealing strip 212, and a chain belt. The inner side of the chain belt is fixedly connected to the inner lining layer 22, and the outer side of the chain belt is fixedly connected to the outer lining layer 23. At the edge position of the chain belt, the outer lining layer 23, the chain belt, and the inner lining layer 22 can be sewn together in a three-layer sandwich manner. By sewing the connection and fixing positions of each layer together, the possible gap positions of the bag body structure can be reduced, the sealing performance of the bag body can be improved, and the processing steps required in the production process can be simplified.

[0065] Furthermore, the sealing strip 212 is disposed on the outer and / or inner side of the zipper belt to seal the gaps on the surface of the zipper belt. The sealing strip 212 is disposed along the length of the zipper head 211 and is equal to the length of the zipper head 211.

[0066] Optionally, the sealing strip 212 can be set on the outer side of the chain of the zipper head 211, with two sealing strips 212 respectively covering the outer surface of the chain. When the zipper head 211 is closed, the two sealing strips 212 come closer to each other and fit together to reduce the gap between the two chains, thereby improving the sealing effect of the first opening structure 21. Alternatively, the sealing strip 212 can be set on the inner side of the chain, with two sealing strips 212 respectively covering the inner surface of the chain. When the zipper head 211 is closed, the two sealing strips 212 come closer to each other and fit together to seal the gap of the zipper head 211. Or, the above-mentioned sealing strips 212 can be set at both the inner and outer positions of the chain. The structure of the double-layer sealing strip 212 can further improve the sealing effect of the first opening structure 21, which is beneficial to extending the refrigeration time of the package.

[0067] In some embodiments, the second opening structure 251 is located on the side wall of the inner lining layer 22. The outer side of the second opening structure 251 is fixedly connected to the inner lining layer 22, and the inner side of the second opening structure 251 is fixedly connected to the waterproof isolation bag 25. The second opening structure 251 is used to open or close the waterproof isolation bag 25 to take out or put in the refrigeration component inside the waterproof isolation bag 25. At the edge of the second opening structure 251, the waterproof isolation bag 25, the second opening structure 251 and the inner lining layer 22 can be sewn together in a three-layer sandwich manner. This allows the waterproof isolation bag 25 to be directly fixed on the inner lining layer, and also reduces the number of sewing lines inside the bag body and reduces possible gaps inside the body structure.

[0068] Furthermore, the second opening structure 251 can be a zipper, a magnetic closure, or an adhesive structure. This allows for flexible replacement of the ice pack inside the waterproof isolation bag 25, improving the flexibility of the insulated bag's use. When long-term refrigeration of medication is required, the second opening mechanism 251 can be used to open the waterproof isolation bag 25 at any time to remove the expired ice pack and place a new one inside, further extending the bag's refrigeration time.

[0069] In some embodiments, the length of the lower part of the package 2 is configured to be greater than the length of the upper part of the package, and / or the width of the lower part of the package 2 is configured to be greater than the width of the upper part of the package, so that the overall structure of the package 2 is a structure that is smaller at the top and larger at the bottom, which helps to improve the stability of the package 2 itself, makes it easier to place it stably during use, and reduces the probability of the internal medicine spilling out.

[0070] Furthermore, the package body 2 also includes a tray 4, which is a straight plate structure used to be disposed at the bottom of the package body 2 and connected to the bottom surface of the package body 2. The tray 4 can be made of cardboard or plastic with a certain degree of rigidity. Its placement at the bottom of the package body 2 not only allows the package body to form a stable bottom surface, improving stability, but also protects the bottom of the package body, preventing protrusions or sharp points on the placement surface from piercing or scratching the package body from the bottom, thus improving the durability of the insulated bag.

[0071] In some embodiments, the handle 1 is provided with a jacquard pattern 11; the jacquard structure allows the handle 1 to have a unique shape. The jacquard and pleated design can give the handbag a unique appearance, increase the visual layering and three-dimensionality, making the handbag look more exquisite and fashionable, attracting consumers' attention, and making the handbag more attractive in appearance. The pleated design makes the handle 1 softer and more comfortable, improving the carrying experience of the handbag, which is especially important for users who carry the handbag for a long time, reducing hand pressure and discomfort.

[0072] Furthermore, the insulated bag also includes a shoulder strap that can be attached. Pull rings or buckles are provided on both sides of the top of the bag body 2 for connecting the shoulder strap. The shoulder strap is detachable from the bag body 2, allowing the insulated bag to be carried diagonally without needing to be carried by hand, thus increasing the usage scenarios for the insulated bag. Special patterned stripes are silkscreened on the front of the bag body 2 and the shoulder strap, enhancing the aesthetics of the insulated bag body 2. This also allows female users to use the insulated bag as a storage bag in their daily lives.

[0073] In some embodiments, side panels 3 are provided on both the left and right sides of the package 2. The side panels 3 protrude from both sides of the package 2 and are connected to the top and bottom of the package 2. The side panels 3 have a certain thickness and shape, which can provide support and protection for both sides of the insulated package 2 and prevent impact damage to the medicine inside the package 2.

[0074] The side panels 3 provide additional support to the bag body 2 on both sides, helping to maintain the shape stability of the bag body 2. This is especially beneficial when the bag contains medications or other fragile items, effectively preventing damage from external impacts. The side panels 3 typically have a certain thickness and a robust structure, making the entire insulated bag body 2 more durable and long-lasting, reducing the impact of external pressure on the bag body 2 and extending its lifespan. Beyond structural support, the side panels 3 also enhance the insulation performance of the bag body 2 to some extent. Through appropriate material and structure design, the side panels 3 help reduce heat loss, further protecting internal medications or other items requiring insulation. The protruding design of the side panels 3 adds aesthetic appeal and design to the insulated bag body 2, making the overall appearance more attractive.

[0075] In some embodiments, the temperature of the thermal pack in this invention is tested by a professional testing institution to verify its actual heat preservation effect. During the temperature test preparation stage, two ice packs (270g / packet) are frozen in an environment of (-18±2)℃ for 6 hours, and the test medicine box is placed in an environment of (5±3)℃ for 3 hours. At the start of the test, the frozen ice packs are placed in the waterproof isolation bags 25 on both sides, and then the test medicine box is placed in the cavity 24 of the thermal pack. During the test, the external ambient temperature is maintained at (28±2)℃, and the temperature inside the medicine packaging box inside the thermal pack is recorded every 3 minutes, and a temperature curve is plotted.

[0076] The technical requirements or standards for this type of product are generally as follows: the temperature of the test medicine box inside the insulation bag should be below 8°C for more than 4 hours. The temperature test result of the insulation bag in this utility model is 6-8 hours, which exceeds the standard by more than 50%-100%; there is no water droplet condensation in the inner cavity 24 of the bag body 2, and no condensation on the surface of the test medicine box.

[0077] It is evident that the heat preservation bag of this utility model has a good cold storage effect and a long heat preservation time, far exceeding the existing technical requirements or standards; the internal temperature fluctuation of the bag body 2 is small, there is no water droplet condensation in the inner cavity 24 of the bag body 2, and there is no condensation on the surface of the test medicine box, creating a suitable environment for drug refrigeration.

[0078] According to the portable insulated bag for refrigerating medicines in the embodiments of this utility model, the beneficial effects that can be achieved include at least: 1) The bag body is provided with a waterproof isolation bag for placing ice packs and a cavity for placing medicines, which can realize the partitioning of ice packs and refrigerated medicines, which is conducive to extending the refrigeration time of medicines and improving the uniformity of temperature distribution inside the bag body.

[0079] 2) Setting up a waterproof isolation bag can also prevent moisture and condensation from the internal ice pack from spreading into the package, which can keep the package in a low-temperature and dry environment during refrigeration, which is beneficial for long-term storage of medicines.

[0080] 3) The partition cloth 27 can prevent the waterproof isolation bag 25 from directly contacting the inner lining 22, reduce the direct transfer of cold energy, and slow down the rate at which the cold energy of the ice pack is transferred to the cavity 24, which is beneficial to extending the refrigeration time of the insulated bag.

[0081] 4) By setting a zipper head 211 with a sealing strip 212 in the first opening structure 21, the sealing performance of the first opening structure 21 can be optimized, the heat storage effect of the package body 2 can be improved, and the heat preservation time can be extended.

[0082] 5) By setting a sealed insulation layer 26, the energy exchange between the inside and outside of the package 2 can be reduced. This not only reduces the heat entering the package 2 from the outside, but also reduces the cold energy diffusing outward from the inside of the package 2, which helps to reduce cold energy loss and increase the refrigeration time of the insulation package.

[0083] 6) The above-mentioned thermal packs can not only be used as thermal packs, but can also be used with different refrigeration components to enable them to store cold or heat, and can be used to store different hot and cold items for a long time. They can also be used as handbags on their own, which improves the flexibility of thermal packs and expands their application scenarios.

[0084] It should be clarified that this utility model is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this utility model is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this utility model.

[0085] In this invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or in place of features of other embodiments.

[0086] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the embodiments of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable thermal pack for cold storage of pharmaceuticals, said thermal pack comprising a handle (1) and a pack body (2), said handle (1) being provided at the top of said pack body (2), characterized in that, The package (2) includes an inner lining layer (22), a sealing and heat-insulating layer (26), and an outer lining layer (23) arranged layer by layer from the inside to the outside; The package (2) has a cavity (24) for storing drugs inside, and the package (2) has a first opening structure (21) that can be opened and closed at the top of the cavity (24). At least one waterproof isolation bag (25) is provided on at least one side of the cavity (24), between the inner lining layer (22) and the sealing insulation layer (26), the waterproof isolation bag (25) having an openable and closable second opening structure (251) for placing the refrigeration component.

2. The portable thermal pack for refrigerating pharmaceuticals according to claim 1, characterized in that, Two waterproof isolation bags (25) are symmetrically arranged, respectively located on the two largest sides of the package body (2); The length of the waterproof isolation bag (25) is configured to be 50%-90% of the length of the package body (2), and the height of the waterproof isolation bag (25) is configured to be 50%-90% of the height of the package body (2).

3. The portable thermal pack for refrigerating pharmaceuticals according to claim 1, wherein, The waterproof isolation bag (25) includes at least one of a first waterproof isolation bag (25-a), a second waterproof isolation bag (25-b), and a third waterproof isolation bag (25-c); The first waterproof isolation bag (25-a) is located on the front and / or rear side of the cavity (24), the second waterproof isolation bag (25-b) is located on the left and / or right side of the cavity (24), and the third waterproof isolation bag (25-c) is located at the bottom of the cavity (24).

4. The portable thermal pack for refrigerating pharmaceuticals of claim 1, wherein, The size and shape of the sealing insulation layer (26) are configured to cover the waterproof isolation bag (25) and the cavity (24) located inside it.

5. The portable thermal pack for the cold storage of pharmaceuticals according to claim 4, wherein, The package also includes a partition fabric (27) disposed between the waterproof isolation bag (25) and the inner lining layer (22), the partition fabric (27) being positioned and sized to correspond to the side of the waterproof isolation bag (25).

6. The portable thermal pack for refrigerating pharmaceuticals of claim 5, wherein, The interlayer fabric (27) is made of cotton or linen; The waterproof isolation bag (25) is made of TPU waterproof material or polyethylene material; The sealing and insulation layer (26) is made of insulation cotton and / or heat-insulating aluminum foil; The thickness of the sealing and insulation layer (26) is configured to be greater than the thickness of the interlayer cloth (27).

7. The portable thermal pack for refrigerating pharmaceuticals of claim 1, wherein, The first opening structure (21) includes a zipper head (211), a sealing strip (212), and a chain belt; The inner side of the chain is fixedly connected to the inner lining layer (22), and the outer side of the chain is fixedly connected to the outer lining layer (23); The sealing strip (212) is provided on the outer and / or inner side of the chain belt to seal the gaps on the surface of the chain belt.

8. The portable thermal pack for refrigerating pharmaceuticals of claim 1, wherein, The second opening structure (251) is located on the side wall of the inner liner (22); The outer side of the second opening structure (251) is fixedly connected to the inner lining layer (22), and the inner side of the second opening structure (251) is fixedly connected to the waterproof isolation bag (25). The second opening structure (251) is used to open or close the waterproof isolation bag (25) to take out or put in the refrigeration component inside the waterproof isolation bag (25). The second opening structure (251) is a zipper structure, a magnetic attraction structure, or an adhesive structure.

9. The portable thermal pack for refrigerating pharmaceuticals of claim 1, wherein, The length of the lower part of the package (2) is configured to be greater than the length of the upper part of the package; The width of the lower part of the package (2) is configured to be greater than the width of the upper part of the package; The package body (2) has side panels (3) on both sides opposite to each other along the length direction. The side panels (3) protrude from both sides of the package body (2), and the upper and lower ends of the side panels (3) are connected to the top and bottom of the package body (2) respectively. The package (2) also includes a tray (4), which is a straight plate structure and is used to be disposed at the bottom of the package (2) and connected to the bottom surface of the package (2).

10. The portable thermal pack for refrigerating pharmaceuticals of claim 1, wherein, The handle (1) is provided with a handle pull pattern (11); The insulated bag also includes a shoulder strap that can be attached. Pull rings or buckles are provided on both sides of the top of the bag body (2) for connecting the shoulder strap.

Images