Blood collection tube storage box for vascular surgery

Abstract

The invention discloses a blood collection tube storage box for vascular surgery. The blood collection tube storage box comprises a box body I, a box body II and a box body III, the first box body is not provided with a cover, and the bottom sides of the second box body and the third box body are matched to seal the first box body. A plurality of connecting rod mechanisms are arranged among the first box body, the second box body and the third box body, and the second box body and the third box body can be unfolded outwards or drawn close inwards at the same time through the connecting rod mechanisms. A refrigerating element and a rechargeable battery I are arranged at the bottom of the inner side of the box body II; an operation panel I with a processor is embedded in a box cover II on the upper side of the box body II; a heating element and a second rechargeable battery are arranged at the bottom of the inner side of the third box body, and a second operation panel with a processor is embedded in a third box cover on the upper side of the third box body. By adopting the three box bodies, partitioned temperature control can be carried out, storage and intelligent control of various types of blood collection tubes are achieved, control is carried out through the operation panel, and the intelligent blood collection tube box is simple and convenient to use, simple and compact in structure and convenient to carry and use.

Description

Technical Field

[0001] The invention relates to the technical field of medical appliances, in particular to a blood collection tube storage box used in vascular surgery. Background Art

[0002] Vascular surgery is a branch of surgery, mainly for the prevention, diagnosis and treatment of peripheral vascular diseases other than cerebrovascular and cardiac vessels. In addition to hair, nails, cornea, etc., blood vessels are spread all over the body, so vascular surgery covers a wide range. At present, in order to maintain cell activity, prevent blood deterioration, and meet the requirements of sterile protection and standardized management, the blood collection tubes used in vascular surgery need to be stored in medical storage boxes to ensure the safety and effectiveness of blood during transportation and storage.

[0003] The application document with publication number CN115626371B discloses a blood sample storage and transfer box for clinical medicine, which achieves the technical effect of partitioned storage and storage by setting up a partition support plate and a partition plate, and achieves and improves the refrigeration effect by setting up a refrigeration device and combining the soft and heat-insulating properties of the sponge. However, in actual use, vascular surgery needs to store multiple types of anticoagulant tubes, serum tubes, blood culture bottles, etc. at the same time, and some samples need to be stored at a specific temperature (such as 4°C refrigeration or 37°C constant temperature), and the blood sample storage and transfer box cannot be zoned for temperature control. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide a blood collection tube storage box for vascular surgery.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is a blood collection tube storage box for vascular surgery, comprising: Box 1, the box 1 is used to store blood collection tubes and collection tools that do not require special temperature preservation; Box 2, the box 2 is arranged above the box 1, and the box 2 is used to place blood collection tubes that need to be refrigerated; Box three, the box three is arranged above the box one, and the box three is used to place blood collection tubes that need to be stored at a temperature of 37°C; The first box has no cover, and the bottom sides of the second box and the third box cooperate with each other to seal the first box; A plurality of connecting rod mechanisms are arranged between the box body 1, the box body 2 and the box body 3, through which the box body 2 and the box body 3 can be simultaneously expanded outward or simultaneously moved inward; On the inner bottom of the second box body, there are a refrigeration element and a first rechargeable battery. On the second box cover on the upper side of the second box body, there is an operation panel with a processor embedded. The operation panel with a processor and the refrigeration element are both electrically connected to the first rechargeable battery. Inside the second box body, there is a first thermometer, and the first thermometer is electrically connected to the operation panel with a processor. On the inner bottom of the third box body, there are a heating element and a second rechargeable battery. On the third box cover on the upper side of the third box body, there is an operation panel with a processor embedded. The operation panel with a processor and the heating element are both electrically connected to the second rechargeable battery. Inside the third box body, there is a second thermometer, and the second thermometer is electrically connected to the operation panel with a processor.

[0006] Furthermore, a partition is provided inside the first box body, thereby dividing the interior of the first box body into a first grid and a second grid. Blood collection tube placement racks are provided in the first grid, the second box body, and the third box body. The blood collection tube placement racks are evenly provided with a plurality of limit holes for inserting and placing blood collection tubes.

[0007] Furthermore, the second box body adopts a double-layer hollow structure, and the second box cover adopts a double-layer hollow structure. One end of the second box cover is hinged to the second box body, and a silica gel gasket is provided on the inner edge of the second box cover.

[0008] Furthermore, the third box body adopts a double-layer hollow structure, and the third box cover adopts a double-layer hollow structure. One end of the third box cover is hinged to the third box body, and a silica gel gasket is provided on the inner edge of the third box cover.

[0009] Furthermore, silica gel gaskets are provided on the bottom side edges of the second box body and the third box body.

[0010] Furthermore, there are four link mechanisms. The four link mechanisms are symmetrically arranged on both sides of the first box body, with two link mechanisms on each side. The two link mechanisms on the same side are symmetrically arranged. The link mechanism includes a first rod and a second rod. For the two link mechanisms on the same side, one connection relationship is as follows: the first rod and the second rod are arranged in parallel. One end of the first rod is rotatably connected to the third box body, and the other end of the first rod is rotatably connected to the first box body. The middle part of the second rod is rotatably connected to the third box body, and the lower end of the second rod is rotatably connected to the first box body. The first rod, the third box body, the second rod, and the first box body form a parallelogram link mechanism. The other connection relationship is as follows: the first rod and the second rod are arranged in parallel. One end of the first rod is rotatably connected to the second box body, and the other end of the first rod is rotatably connected to the first box body. The middle part of the second rod is rotatably connected to the second box body, and the lower end of the second rod is rotatably connected to the first box body. The first rod, the second box body, the second rod, and the first box body form a parallelogram link mechanism. A handle one is fixedly connected between the upper ends of the second rods located on both sides of the second box body, and a handle two is fixedly connected between the upper ends of the second rods located on both sides of the third box body; A limiting device is arranged between the handle one and the handle two.

[0011] Furthermore, the main chip of the operation panel one with a processor adopts an STM32F407 chip; The main chip of the operation panel two with a processor adopts an STM32F407 chip; The first thermometer adopts a DS18B20 temperature sensor; The second thermometer adopts a PT1000 temperature sensor; The refrigeration element adopts a TEC1-12703 semiconductor refrigeration chip; The heating element adopts an integrated graphene heating film.

[0012] The advantages of the present invention compared with the prior art are as follows: By adopting a three-box body setting, the present invention can perform zoning temperature control, realize the storage of various types of blood collection tubes, and has intelligent control. It is manipulated through the operation panel, which is simple and convenient. The structure is simple and compact, facilitating carrying and use. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of a blood collection tube storage box for vascular surgery according to the present invention.

[0014] Figure 2 It is Figure 1 The enlarged structural schematic diagram at position A of

[0015] Figure 3 It is a sectional structural schematic diagram of the second box body and the third box body of a blood collection tube storage box for vascular surgery according to the present invention.

[0016] Figure 4 It is a schematic structural diagram of the first box body and its interior of a blood collection tube storage box for vascular surgery according to the present invention.

[0017] Figure 5 It is a schematic structural diagram of a blood collection tube placement rack of a blood collection tube storage box for vascular surgery according to the present invention.

[0018] Figure 6 It is a refrigeration principle diagram of a blood collection tube storage box for vascular surgery according to the present invention.

[0019] Figure 7 It is a heating principle diagram of a blood collection tube storage box for vascular surgery according to the present invention.

[0020] As shown in the figure: 1. Box 1, 2. Box 2, 3. Box 3, 4. Refrigeration element, 5. First rechargeable battery, 6. Second box cover, 7. First operation panel with a processor, 8. First thermometer, 9. Heating element, 10. Second rechargeable battery, 11. Third box cover, 12. Second operation panel with a processor, 13. Second thermometer, 14. Partition, 15. Blood collection tube placement rack, 16. Limiting hole, 17. Vertical plate, 18. Pulling plate, 19. First rod, 20. Second rod, 21. First handle, 22. Second handle, 23. First handle glove, 24. Second handle glove, 25. Slide rod, 26. Pull rod, 27. Pin rod, 28. Spring, 29. Connecting piece. Detailed implementation manner

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0022] Example 1, in combination with the attached Figures 1-7 , a blood collection tube storage box for vascular surgery, comprising: Box 1, the Box 1 is used for storing blood collection tubes that do not require special temperature preservation and collection tools; Box 2, the Box 2 is arranged above the Box 1, and the Box 2 is used for placing blood collection tubes that need to be refrigerated; Box 3, the Box 3 is arranged above the Box 1, and the Box 3 is used for placing blood collection tubes that need to be stored at 37°C; The Box 1 has no cover, and the bottom sides of the Box 2 and the Box 3 cooperate with each other to seal the Box 1; A plurality of link mechanisms are provided between the Box 1, the Box 2, and the Box 3. Through the plurality of link mechanisms, the Box 2 and the Box 3 can be simultaneously expanded outwards or simultaneously moved inwards; A refrigeration element 4 and a first rechargeable battery 5 are provided at the inner bottom of the Box 2. A first operation panel 7 with a processor is embedded on the second box cover 6 on the upper side of the Box 2. The first operation panel 7 with a processor and the refrigeration element 4 are both electrically connected to the first rechargeable battery 5. A first thermometer 8 is provided inside the Box 2, and the first thermometer 8 is electrically connected to the first operation panel 7 with a processor; A heating element 9 and a rechargeable battery 2 10 are provided at the bottom inner side of the box body 3 3 , an operation panel 2 12 with a processor is embedded on the box cover 3 11 on the upper side of the box body 3 3 , the operation panel 2 12 with a processor and the heating element 9 are electrically connected to the rechargeable battery 2 10 , a thermometer 2 13 is provided inside the box body 3 3 , and the thermometer 2 13 is electrically connected to the operation panel 2 12 with a processor.

[0023] When in use, carry the blood collection tube storage box to the collection point, expand box body 2 2 and box body 3 3 outward at the same time through the connecting rod mechanism, take out the sampling tool from box body 1, and then start sampling. According to the storage temperature conditions required for sampling, place it in box body 1, box body 2 2, or box body 3 3 for storage, wherein the internal temperature of box body 2 2 is set for refrigeration through the operation panel 1 7 with a processor, such as setting it to 4°C, the refrigeration element 4 works for refrigeration, the thermometer 1 8 detects the internal temperature of box body 2 2 and displays the temperature value on the operation panel 1 7 with a processor; the internal temperature of box body 3 3 is set to 37°C through the operation panel 12 with a processor for constant temperature storage, the heating element 9 works, the thermometer 13 detects the internal temperature of box body 3 3 and displays the temperature value on the operation panel 12 with a processor.

[0024] In this specific embodiment, a partition 14 is provided on the inner side of the box body 1, thereby dividing the interior of the box body 1 into grid one and grid two. The grid one, box body 2 2, and box body 3 3 are all provided with a blood collection tube placement rack 15. The blood collection tube placement rack 15 is evenly provided with a plurality of limiting holes 16 for inserting and placing blood collection tubes. The collection tubes for collected blood samples are inserted through the limiting holes 16 for placement to prevent them from tipping over and colliding with each other. The grid two is used to place blood collection tools.

[0025] In this specific embodiment, the box body 2 adopts a double-layer hollow structure, and the box cover 6 adopts a double-layer hollow structure, so that the thermal insulation effect is good. One end of the box cover 6 is hinged to the box body 2, and a silicone gasket is provided on the inner edge of the box cover 6. When the box cover 6 is closed, the sealing between the box cover 6 and the box body 2 can be increased, thereby increasing the thermal insulation effect.

[0026] In this specific embodiment, the box body three 3 adopts a double-layer hollow structure, and the box cover three 11 adopts a double-layer hollow structure, so that the thermal insulation effect is good. One end of the box cover three 11 is hinged to the box body three 3, and a silicone gasket is provided on the inner edge of the box cover three 11. When the box cover three 11 is closed, the sealing between the box cover three 11 and the box body three 3 can be increased, thereby increasing the thermal insulation effect.

[0027] Among them, the second box body 2, the second box cover 6, the third box body 3, and the third box cover 11 are all made of ABS material, with a relatively low thermal conductivity, about 0.2 - 0.3 W / (m·K), meeting the usage requirements. At the same time, they have high hardness and density, good impact resistance, are not easily damaged, and have a long service life.

[0028] In this specific embodiment, vertical plates 17 are provided at the mutually approaching ends of the second box cover 6 and the third box cover 11. A pulling plate 18 is fixedly connected to the upper end of the vertical plate 17. By pulling the pulling plate 18, the second box cover 6 or the third box cover 11 can be easily opened. Particularly, locking devices that cooperate with each other can be provided on the two vertical plates 17 to connect the two vertical plates 17 together to prevent the second box cover 6 or the third box cover 11 from being opened randomly.

[0029] In this specific embodiment, silicone gaskets are provided at the bottom side edges of the second box body 2 and the third box body 3. When the second box body 2 and the third box body 3 approach each other and are located above the first box body 1, the silicone gaskets are in close contact with the upper edge of the first box body 1, thereby increasing the sealing performance of the first box body 1 and preventing dust and the like from falling into the first box body 1.

[0030] In this specific embodiment, there are four link mechanisms. The four link mechanisms are symmetrically arranged on both sides of the first box body 1, with two link mechanisms on each side. The two link mechanisms on the same side are symmetrically arranged. The link mechanism includes a first rod 19 and a second rod 20. For one of the two link mechanisms on the same side, the connection relationship is as follows: the first rod 19 and the second rod 20 are arranged in parallel. One end of the first rod 19 is rotatably connected to the third box body 3, the other end of the first rod 19 is rotatably connected to the first box body 1, the middle part of the second rod 20 is rotatably connected to the third box body 3, and the lower end of the second rod 20 is rotatably connected to the first box body 1. The first rod 19, the third box body 3, the second rod 20, and the first box body 1 form a parallelogram link mechanism; For the other connection relationship: the first rod 19 and the second rod 20 are arranged in parallel. One end of the first rod 19 is rotatably connected to the second box body 2, the other end of the first rod 19 is rotatably connected to the first box body 1, the middle part of the second rod 20 is rotatably connected to the second box body 2, and the lower end of the second rod 20 is rotatably connected to the first box body 1. The first rod 19, the second box body 2, the second rod 20, and the first box body 1 form a parallelogram link mechanism; A first handle 21 is fixedly connected between the upper ends of the second rods 20 on both sides of the second box body 2, and a second handle 22 is fixedly connected between the upper ends of the second rods 20 on both sides of the third box body 3; A limiting device is provided between the first handle 21 and the second handle 22.

[0031] During use, open the limiting device and pull the first handle 21 and the second handle 22 relative to each other outward, then the second box body 2 and the third box body 3 can be driven to expand outward.

[0032] In this specific embodiment, a first handle cover 23 is sleeved on the first handle 21, and a second handle cover 24 is sleeved on the second handle 22. The first handle cover 23 and the second handle cover 24 can be made of silica gel material, which not only increases the comfort of use but also avoids slipping when carrying by hand, facilitating carrying.

[0033] In this specific embodiment, the limiting device includes a sliding rod 25 slidably connected to the second handle 22, a pull rod 26 fixedly connected to the sliding rod 25, a pin rod 27 fixedly connected to the pull rod 26, a spring 28 sleeved on the sliding rod 25, and a connecting piece 29 fixedly connected to the sliding rod 25. A pin hole adapted to the pin rod 27 is provided on the first handle 21. One end of the spring 28 is fixedly connected to the first handle 21, and the other end of the spring 28 is fixedly connected to the connecting piece 29. When it is necessary to open the limiting device, only need to pull the pull rod 26 by hand. The pull rod 26 drives the sliding rod 25 and the pin rod 27 to move outward, and the spring 28 elongates. When the pin rod 27 disengages from the pin hole, the first handle 21 and the second handle 22 can be pulled relative to each other outward. When the sampling is completed, the first handle 21 and the second handle 22 are pulled relative to each other inward, so that the second box body 2 and the third box body 3 are close to each other and located above the first box body 1. Then pull the pull rod 26 by hand. The pull rod 26 drives the sliding rod 25 and the pin rod 27 to move outward, and the spring 28 elongates. The pin rod 27 is aligned with the pin hole. Release the pull rod 26, and the pin rod 27 is inserted into the pin hole under the pulling force of the spring 18, so that the first handle 21 and the second handle 22 cannot be pulled relative to each other outward.

[0034] In this specific embodiment, the main chip of the operation panel one 7 with a processor uses an STM32F407 chip; The main chip of the operation panel two 12 with a processor uses an STM32F407 chip; The first thermometer 8 uses a DS18B20 temperature sensor; The second thermometer 13 uses a PT1000 temperature sensor; The refrigeration element 4 uses a TEC1-12703 semiconductor refrigeration chip; The heating element 9 uses an integrated graphene heating film.

[0035] In the description of the embodiments of the present invention, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0036] In addition, if terms such as "horizontal", "vertical", "hanging" are used, it does not mean that the component is required to be absolutely horizontal or hanging, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0037] In the description of the embodiments of the present invention, "a plurality of" represents at least two.

[0038] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] The above describes the present invention and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural forms and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A blood collection tube storage box for vascular surgery, characterized in that Including: A first box body (1) for storing blood collection tubes and collection tools that do not require special temperature preservation. A second box body (2) disposed above the first box body (1) for placing blood collection tubes that need to be refrigerated. A third box body (3) disposed above the first box body (1) for placing blood collection tubes that need to be stored at 37 °C. The first box body (1) has no cover, and the bottom sides of the second box body (2) and the third box body (3) cooperate to seal the first box body (1). A plurality of link mechanisms are provided between the first box body (1), the second box body (2), and the third box body (3). Through the plurality of link mechanisms, the second box body (2) and the third box body (3) can be simultaneously expanded outward or simultaneously moved closer inward. A refrigeration element (4) and a first rechargeable battery (5) are provided at the inner bottom of the second box body (2). An operation panel one (7) with a processor is embedded in the box cover two (6) on the upper side of the second box body (2). The operation panel one (7) with a processor and the refrigeration element (4) are both electrically connected to the first rechargeable battery (5). A thermometer one (8) is provided inside the second box body (2), and the thermometer one (8) is electrically connected to the operation panel one (7) with a processor. A heating element (9) and a second rechargeable battery (10) are provided at the inner bottom of the third box body (3). An operation panel two (12) with a processor is embedded in the box cover three (11) on the upper side of the third box body (3). The operation panel two (12) with a processor and the heating element (9) are both electrically connected to the second rechargeable battery (10). A thermometer two (13) is provided inside the third box body (3), and the thermometer two (13) is electrically connected to the operation panel two (12) with a processor.

2. The blood collection tube storage box for vascular surgery according to claim 1, wherein: A partition (14) is provided inside the first box body (1), thereby dividing the interior of the first box body (1) into a first grid and a second grid. Blood collection tube placement racks (15) are provided in the first grid, the second box body (2), and the third box body (3). A plurality of limit holes (16) for inserting and placing blood collection tubes are evenly provided on the blood collection tube placement racks (15).

3. A blood collection tube storage box for vascular surgery according to claim 1, characterized in that: The second box body (2) adopts a double-layer hollow structure, and the box cover two (6) adopts a double-layer hollow structure. One end of the box cover two (6) is hinged to the second box body (2), and a silica gel gasket is provided at the inner edge of the box cover two (6).

4. A blood collection tube storage box for vascular surgery according to claim 1, characterized in that: The third box body (3) adopts a double-layer hollow structure, and the box cover three (11) adopts a double-layer hollow structure. One end of the box cover three (11) is hinged to the third box body (3), and a silica gel gasket is provided at the inner edge of the box cover three (11).

5. A blood collection tube storage box for vascular surgery according to claim 1, characterized in that: Vertical plates (17) are provided at the mutually approaching ends of the box cover two (6) and the box cover three (11), and a pull plate (18) is fixedly connected to the upper ends of the vertical plates (17).

6. A blood collection tube storage box for vascular surgery according to claim 1, characterized in that: Silica gel gaskets are provided at the bottom edges of the second box body (2) and the third box body (3).

7. A blood collection tube storage box for vascular surgery according to claim 1, characterized in that: There are four connecting rod mechanisms, which are symmetrically arranged on both sides of the first box body (1), with two connecting rod mechanisms on each side. The two connecting rod mechanisms on the same side are symmetrically arranged. The connecting rod mechanism includes a first rod (19) and a second rod (20). For the two connecting rod mechanisms on the same side, one of the connection relationships is as follows: the first rod (19) and the second rod (20) are arranged in parallel. One end of the first rod (19) is rotatably connected to the third box body (3), the other end of the first rod (19) is rotatably connected to the first box body (1), the middle of the second rod (20) is rotatably connected to the third box body (3), and the lower end of the second rod (20) is rotatably connected to the first box body (1). The first rod (19), the third box body (3), the second rod (20), and the first box body (1) form a parallelogram connecting rod mechanism; The other connection relationship is as follows: the first rod (19) and the second rod (20) are arranged in parallel. One end of the first rod (19) is rotatably connected to the second box body (2), the other end of the first rod (19) is rotatably connected to the first box body (1), the middle of the second rod (20) is rotatably connected to the second box body (2), and the lower end of the second rod (20) is rotatably connected to the first box body (1). The first rod (19), the second box body (2), the second rod (20), and the first box body (1) form a parallelogram connecting rod mechanism; A first handle (21) is fixedly connected between the upper ends of the second rods (20) on both sides of the second box body (2), and a second handle (22) is fixedly connected between the upper ends of the second rods (20) on both sides of the third box body (3); A limiting device is provided between the first handle (21) and the second handle (22).

8. A blood collection tube storage box for vascular surgery according to claim 7, characterized in that: A first handle sleeve (23) is sleeved on the first handle (21), and a second handle sleeve (24) is sleeved on the second handle (22).

9. The blood collection tube storage box for vascular surgery according to claim 7, wherein: The limiting device includes a sliding rod (25) slidably connected to the second handle (22), a pull rod (26) fixedly connected to the sliding rod (25), a pin rod (27) fixedly connected to the pull rod (26), a spring (28) sleeved on the sliding rod (25), and a connecting piece (29) fixedly connected to the sliding rod (25). A pin hole adapted to the pin rod (27) is provided on the first handle (21). One end of the spring (28) is fixedly connected to the first handle (21), and the other end of the spring (28) is fixedly connected to the connecting piece (29).

10. The blood collection tube storage box for vascular surgery according to claim 9, characterized in that: The main chip of the operation panel one (7) with a processor uses an STM32F407 chip; The main chip of the operation panel two (12) with a processor uses an STM32F407 chip; The first thermometer (8) uses a DS18B20 temperature sensor; The second thermometer (13) uses a PT1000 temperature sensor; The refrigeration element (4) uses a TEC1-12703 semiconductor refrigeration sheet; The heating element (9) uses an integrated graphene heating film.

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