A reusable picc catheter heating structure
By designing a reusable PICC catheter heating structure, utilizing a graphene heating layer and silicone material, the problem of catheter disposal was solved, achieving stable catheter fixation and convenient sterilization, reducing usage costs and improving environmental friendliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF BENGBU MEDICAL COLLEGE
- Filing Date
- 2025-02-21
- Publication Date
- 2026-07-03
Smart Images

Figure CN224441884U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PICC catheter technology, and in particular to a reusable PICC catheter heating structure. Background Technology
[0002] PICC catheters, or peripherally inserted central catheters, are thin and flexible medical catheters primarily used for long-term intravenous infusions and the administration of irritating medications. An existing patent (publication number: CN219539080U) discloses a PICC catheter fixation clip. This invention uses a main component to attach an elastic buckle to the patient's wrist, connecting the main component to the body and using clamps to hold the PICC catheter in place. However, in practical applications, it is evident that the contact area between the elastic buckle and the patient's wrist is relatively large, sometimes even completely adhering to the wrist skin, requiring a large area for disinfection. Furthermore, medical institutions must dispose of these consumables as medical waste after use, increasing costs and being environmentally unfriendly. Therefore, we propose a reusable PICC catheter heating structure. Utility Model Content
[0003] To address the aforementioned problems, this invention provides a reusable PICC conduit heating structure.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A reusable PICC catheter heating structure is designed, including a connecting plate, a protective cover connected to the top of the connecting plate, and a graphene heating layer covering the inner wall of the protective cover. Both the connecting plate and the protective cover are made of silicone. Pairs of clamping blocks are provided inside the protective cover, with each pair of clamping blocks facing each other. A heating component is also provided inside the protective cover, and the heating component includes pairs of clamping blocks, the inner wall of which is covered with a graphene heating layer. The clamping blocks are elastically and movably connected between the two sides of the protective cover, and an operating rod is fixed between adjacent clamping blocks. A connecting component that can be detachably connected to a hospital wristband is provided at the bottom of the connecting plate.
[0006] In the above scheme, a guide rod is fixed between the inner walls of the two sides of the protective cover, and a sliding block that is slidably connected to the guide rod is fixed on both the first clamping block and the second clamping block. A spring is sleeved on the guide rod, with its two ends connected to the sliding block and the inner wall of the protective cover, respectively.
[0007] In the above scheme, the first clamping block is located at the front and rear ends of the protective cover, the second clamping block is located in the middle of the protective cover, and the end of the operating rod passes through the first clamping block.
[0008] In the above scheme, the top of the protective cover has an opening, and a cover plate is hinged to the opening.
[0009] In the above scheme, the clamping block 1 is provided with a limiting component. The limiting component includes a pad layer laid on the inner wall of the clamping block 1. A limiting block is fixed on the inner wall of the pad layer, and limiting pieces are fixed at both ends of the pad layer.
[0010] In the above solution, the connecting component includes a positioning block disposed at the bottom of the connecting plate, and the bottom of the positioning block is covered with double-sided adhesive.
[0011] In the above scheme, the connecting component includes a locking block fixed to both ends of the connecting plate, a limit cap fixed to the bottom end of the locking block, and elastic claws provided at both ends of the connecting plate.
[0012] The advantages and beneficial effects of this utility model are as follows: By setting up a connecting plate, a protective cover, a clamping block, a heating component, and a connecting component, the clamping block limits the PICC catheter, making it stably positioned within the protective cover. The heating component then heats the PICC catheter, appropriately raising the temperature of the medication inside. This maintains the medication at an appropriate temperature without affecting its efficacy, improving patient comfort during infusion. Compared to existing technologies, firstly, double-sided tape can be used to fix the connecting plate to the hospital wristband. After the infusion is complete, the connecting plate can be removed for sterilization. Secondly, the clamping blocks can be inserted into the holes on both sides of the hospital wristband, and the elastic claws can be inserted into the gap between the wristband and the skin to fix it to the wristband. After the infusion is complete, the connecting plate can be removed for sterilization. This utility model has a very small contact area with the wrist skin, facilitating sterilization and allowing for reuse, thus achieving an environmentally friendly effect. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the first embodiment of a reusable PICC conduit heating structure proposed in this utility model.
[0015] Figure 2 This is a schematic diagram of another possible structure of a reusable PICC conduit heating structure proposed in this utility model;
[0016] Figure 3This is a schematic diagram of the internal structure of the clamping block of a reusable PICC conduit heating structure proposed in this utility model;
[0017] Figure 4 This is a schematic diagram of the heating assembly of a reusable PICC conduit heating structure proposed in this utility model.
[0018] In the diagram: 1. Connecting plate; 2. Protective cover; 3. Positioning block; 4. Double-sided adhesive; 5. Graphene heating layer 1; 6. Insert; 7. Cover plate; 8. Clamping block 1; 9. Limiting component; 91. Pad; 92. Limiting block; 93. Limiting piece; 10. Sliding block; 11. Guide rod; 12. Spring; 13. Clamping block 2; 14. Graphene heating layer 2; 15. Locking block; 16. Limiting cap; 17. Elastic claw; 18. Operating lever. Detailed Implementation
[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0020] Please see Figure 1-4 This utility model provides a technical solution: a reusable PICC catheter heating structure, including a connecting plate 1, a protective cover 2 fixedly connected to the top of the connecting plate 1, and a graphene heating layer 5 covering the inner wall of the protective cover 2. The graphene heating layer 5 is used to generate heat and spread the heat in the inner cavity of the protective cover 2 to assist in heating the drug solution in the catheter. Both the connecting plate 1 and the protective cover 2 are made of silicone. Compared with conventional materials, silicone is more skin-friendly and can avoid damage to the skin. The edges of the connecting plate 1 and the protective cover 2 are rounded to minimize sharp points and further reduce damage to the human body. Pairs of clamping blocks 8 are provided inside the protective cover 2, with each pair of clamping blocks 8 arranged opposite each other.
[0021] Furthermore, the clamping block 8 is provided with a limiting component 9. The limiting component 9 includes a pad 91 laid on the inner wall of the clamping block 8. A limiting block 92 is fixed to the inner wall of the pad 91. The limiting block 92 abuts against the outer wall of the conduit, increasing the pressure on the conduit and thus increasing friction to prevent the conduit from moving. The pad 91 is fixed with limiting pieces 93 at both ends. The limiting pieces 93 are annular, and their outer diameter is larger than the hole diameter of the clamping block 8. The limiting pieces 93 are made of elastic material, such as soft silicone, so that the limiting component 9 can be removed by deformation.
[0022] Furthermore, the top of the protective cover 2 is provided with an insertion port 6, and a cover plate 7 is hinged to the insertion port 6; by inserting the conduit downwards into the protective cover 2 through the insertion port 6, the conduit is connected to the clamp block 8. After the connection is completed, the cover plate 7 is placed on the insertion port 6, and the cover plate 7 is fixed to the top of the protective cover 2 by magnetic attraction, specifically by magnetic sheets with opposite magnetic properties.
[0023] The protective cover 2 is also equipped with a heating component, which includes a pair of clamping blocks 13. The inner wall of the clamping blocks 13 is covered with a graphene heating layer 14. The clamping blocks 1 and 2 are elastically connected between the two sides of the protective cover 2. By applying a pulling force to one side of the clamping blocks 1 and 2, they are moved away from the other side of the clamping blocks 1 and 2, so that the conduit can be inserted into it.
[0024] Furthermore, a guide rod 11 is horizontally fixed between the inner walls of both sides of the protective cover 2. Sliding blocks 10 that are slidably connected to the guide rod 11 are fixed on both clamping blocks 11 and clamping blocks 2. Springs 12 that are connected to the sliding blocks 10 and the inner wall of the protective cover 2 respectively are sleeved on the guide rod 11. When there is no external force, the springs 12 are in a contracted state. The elastic force of the springs 12 is used to make each pair of clamping blocks 11 and each pair of clamping blocks 2 tightly spliced together.
[0025] Furthermore, an operating lever 18 is fixed between adjacent clamping blocks 1 and 2;
[0026] Furthermore, clamp 18 is located at the front and rear ends of the protective cover 2, clamp 213 is located in the middle of the protective cover 2, and the end of the operating rod 18 passes through clamp 18. By pulling the operating rod 18, clamp 18 and clamp 213 located on the same side can move together, which facilitates the insertion of the catheter.
[0027] The bottom of the connecting plate 1 is provided with a connecting component that can be detachably connected to the hospital wristband;
[0028] To elaborate further, the first scenario is as follows: Figure 1 As shown, the connecting component includes a positioning block 3 disposed at the bottom of the connecting plate 1, and the bottom of the positioning block 3 is covered with double-sided tape 4; by peeling off the double-sided tape 4, disinfecting the positioning block 3, and then replacing it with a new double-sided tape 4, it can be reused.
[0029] Furthermore, the second scenario is as follows: Figure 2 As shown, the connecting assembly includes a locking block 15 fixed to both ends of the connecting plate 1. A limit cap 16 is fixed to the bottom end of the locking block 15, and elastic claws 17 are provided at both ends of the connecting plate 1. By first removing the locking block 15 from the socket, then removing the elastic claws 17 from the gap between the wrist skin and the hospital wristband, and disinfecting the part in contact with the wrist skin, it can be reused.
[0030] Specifically, by setting up a connecting plate 1, a protective cover 2, a clamping block 8, a heating component, and a connecting component, the clamping block 8 is used to limit the PICC catheter, making it stably located within the protective cover 2. The heating component then heats the PICC catheter, appropriately raising the temperature of the medication inside. This maintains the medication at a suitable temperature without affecting its efficacy, improving patient comfort during infusion. Compared to existing technologies, on the one hand, double-sided tape can be used to fix the connecting plate 1 to the hospital wristband. After the infusion is complete, the connecting plate 1 can be removed for disinfection. On the other hand, the clamping block 15 can be inserted into the holes on both sides of the hospital wristband, and the elastic claw 17 can be inserted into the gap between the hospital wristband and the skin to fix it to the wristband. After the infusion is complete, the connecting plate 1 can be removed for disinfection. This invention has a very small contact area with the wrist skin, facilitating disinfection and reuse, thus achieving an environmentally friendly effect.
[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A reusable PICC catheter heating structure comprising a connection plate (1), characterized in that, The top of the connecting plate (1) is connected to a protective cover (2). The inner wall of the protective cover (2) is covered with a graphene heating layer (5). The connecting plate (1) and the protective cover (2) are both made of silicone. The protective cover (2) is provided with a pair of clamping blocks (8). Each pair of clamping blocks (8) is arranged opposite to each other. The protective cover (2) is also provided with a heating component. The heating component includes a pair of clamping blocks (13). The inner wall of the clamping blocks (13) is covered with a graphene heating layer (14). The clamping blocks (8) and the clamping blocks (13) are elastically and movably connected between the two sides of the protective cover (2). An operating rod (18) is fixed between adjacent clamping blocks (8) and clamping blocks (13). The bottom of the connecting plate (1) is provided with a connecting component that can be detachably connected to the hospital wristband.
2. A reusable PICC catheter heating structure according to claim 1, wherein, A guide rod (11) is fixed between the inner walls of both sides of the protective cover (2). A sliding block (10) that is slidably connected to the guide rod (11) is fixed on both the clamping block one (8) and the clamping block two (13). A spring (12) with both ends connected to the sliding block (10) and the inner wall of the protective cover (2) is sleeved on the guide rod (11).
3. A reusable PICC catheter heating structure according to claim 1, wherein, The first clamp (8) is located at the front and rear ends of the protective cover (2), the second clamp (13) is located in the middle of the protective cover (2), and the end of the operating rod (18) passes through the first clamp (8).
4. A reusable PICC catheter heating structure according to claim 1, wherein, The protective cover (2) has an opening (6) at the top, and a cover plate (7) is hinged to the opening (6).
5. A reusable PICC catheter heating structure according to claim 1, wherein, The clamping block (8) is provided with a limiting component (9), which includes a pad (91) laid on the inner wall of the clamping block (8), a limiting block (92) is fixed on the inner wall of the pad (91), and limiting pieces (93) are fixed at both ends of the pad (91).
6. A reusable PICC catheter heating structure according to claim 1, wherein, The connecting component includes a positioning block (3) disposed at the bottom of the connecting plate (1), and the bottom of the positioning block (3) is covered with double-sided adhesive (4).
7. A reusable PICC catheter heating structure according to claim 1, wherein, The connecting assembly includes a locking block (15) fixed to both ends of the connecting plate (1), a limit cap (16) fixed to the bottom end of the locking block (15), and elastic claws (17) provided at both ends of the connecting plate (1).