Novel heating and heat preservation infusion paste
By designing an automatically temperature-controlled heating and warming infusion patch, the problem of discomfort caused by low-temperature infusion fluids is solved. It achieves intelligent adjustment of infusion temperature and reduces the risk of infection, making it suitable for use in the medical device field.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-20
AI Technical Summary
The discomfort and clinical problems caused by low-temperature fluid infusion during intravenous infusion are addressed by existing heating equipment, which is large and expensive, and the lack of automatic temperature-controlled infusion patches.
A novel heat-generating and heat-insulating infusion patch is designed, comprising an isolation layer, a temperature control layer, a breathable layer, an adhesive backing layer, and a release layer. The temperature control layer contains a temperature controller, flexible circuitry, and a heating power supply to achieve automatic temperature control and maintain the infusion temperature within the range of 35-38℃.
It achieves automatic regulation of infusion temperature, reduces the occurrence of clinical hypothermia complications, improves user comfort and reduces the risk of infection, and is low in cost and easy to mass-produce.
Smart Images
Figure CN224008560U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of medical apparatus and instruments, and relates to a novel heating and heat-preserving infusion patch. BACKGROUND
[0002] Infusion refers to the process of inputting large-dose injection liquid into the body through intravenous drip, and the single administration is generally above 100ml. Infusion is a routine administration mode for hospital outpatients, emergency and inpatients, and a large number of patients receive infusion administration every day. The drug liquid for infusion is at room temperature, which is generally lower than the body temperature, and there is a significant temperature difference. Continuous infusion of low-temperature liquid can cause the temperature of the infusion site to drop, and discomfort is caused. In particular, the temperature difference between the drug liquid and the human body is large in winter, and the discomfort is obvious. Serious cases can cause blood spasm, decrease of human body temperature and other clinical problems.
[0003] In order to alleviate the discomfort of the infusion site, hot compress measures such as hot water bag, hot towel or hand-held warm cup are usually taken, but these measures have certain defects in use. Infusion warming instruments, heating blankets and the like can also be used for heat preservation, but these heating devices are large, have large heat preservation areas and are high in cost.
[0004] The puncture position and the tube body are usually fixed by using an infusion patch during infusion, so it is an urgent problem to develop an infusion patch with heating and heat-preserving functions for adjusting the temperature of the drug and the infusion site during infusion. At present, the infusion patches with heat-preserving functions generally contain self-heating heating bags or heating devices, but no related research on automatic temperature control infusion patches has been found. CONTENT OF THE UTILITY MODEL
[0005] Based on this, the purpose of the utility model is to provide a novel heating and heat-preserving infusion patch with automatic temperature control function, which can solve the adverse clinical problems caused by the infusion of low-temperature liquid into the human body during infusion.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0007] The utility model provides a novel heating and heat-preserving infusion patch, which comprises an isolation layer, a temperature control layer, a breathable layer, a back adhesive layer and a release layer which are sequentially stacked; the temperature control layer comprises an insulating bottom film and a heating and heat-preserving control module, and the heating and heat-preserving control module comprises a temperature controller, a flexible circuit, a heating power supply and a circuit switch which are electrically connected.
[0008] Further, the heating and heat-preserving control module is fixed on the insulating bottom film; the isolation layer is fixedly connected with the heating and heat-preserving control module, and the breathable layer is fixedly connected with the insulating bottom film.
[0009] Further, the temperature controller comprises a temperature control switch, a temperature sensor, a temperature control chip and a display screen, and the temperature control range of the temperature control chip is 35-38 DEG C.
[0010] Further, the profile of the flexible circuit comprises an S shape, the conductive wire of the flexible circuit comprises a copper foil wire or a silver paste wire, and the conductive wire is connected with the heat-generating power supply.
[0011] Further, the heat-generating power supply comprises a micro battery, and the micro battery comprises a button cell.
[0012] Further, the isolation layer is provided with a window, the temperature controller and the circuit switch are fixed on the insulating base film at positions corresponding to the window, and observation and operation are facilitated; and the isolation layer is made of non-woven fabric.
[0013] Further, the air-permeable layer is a sponge layer with a porous structure, the sponge layer is made of polyvinyl alcohol or chitosan, and the thickness of the air-permeable layer is 0.2-0.6 cm.
[0014] Further, the back adhesive layer is a water-based acrylic pressure-sensitive adhesive with antibacterial properties.
[0015] Further, the release layer is made of glassine paper, and the release layer is attached to the lower surface of the back adhesive layer and completely covers the back adhesive layer.
[0016] The novel heating and heat-preserving infusion patch provided by the utility model contains a temperature control layer, a heating and heat-preserving control module is arranged on the temperature control layer, the heating and heat-preserving control module can automatically start or stop the heating function according to the liquid medicine of the infusion site and the surface temperature of the human body, the infusion temperature is kept in a comfortable range, and the generation of clinical hypothermia complications is reduced. The infusion patch contains a back adhesive layer, the back adhesive layer has antibacterial function, and the risk of infection of the puncture site can be reduced during use. The flexible heating circuit is used in the infusion patch, the body fitting comfort can be improved, the circuit is simple, the cost is low, and mass production is easy. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.
[0018] ATTACHMENT Figure 1 It is the structure diagram of intelligent heating patch;
[0019] ATTACHMENT Figure 2 It is the structure diagram of isolation layer in intelligent heating patch;
[0020] ATTACHMENT Figure 3 It is the structure diagram of heating layer in intelligent heating patch;
[0021] Appendix Figure 4 This is a schematic diagram of the flexible heating module in the heating layer of a smart heating patch.
[0022] Appendix Figure 5 Diagram of the breathable layer structure in intelligent heating dressing;
[0023] In the diagram: 1 is the isolation layer, 2 is the temperature control layer, 3 is the breathable layer, 4 is the adhesive backing layer, 5 is the release layer, 6 is the insulating bottom film, 7 is the temperature controller, 7-1 is the temperature control switch, 8 is the flexible circuit, 9 is the heating power supply, 10 is the circuit switch, 11 is the temperature controller window, and 12 is the circuit switch window. Detailed Implementation
[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.
[0025] like Figure 1-5 As shown, this utility model provides a novel heating and insulating infusion patch, comprising an isolation layer 1, a temperature control layer 2, a breathable layer 3, an adhesive backing layer 4, and a release layer 5, stacked sequentially. The temperature control layer 2 includes an insulating base film 6 and a heating and insulating control module. The heating and insulating control module includes an electrically connected temperature controller 7, a flexible circuit 8, a heating power supply 9, and a circuit switch 10. The flexible circuit 8, temperature controller 7, and circuit switch 10 are connected in series across the two ends of the power supply 9. In clinical use, the patient peels the release layer 5 off the adhesive backing layer 4 and then applies the adhesive backing layer 4 to the infusion site.
[0026] The novel heating and heat-preserving infusion patch has an isolation layer 1 and a temperature control layer 2 whose heating and heat preservation control modules are fixedly connected by heat-sealing fusion welding. The isolation layer 1 is provided with a temperature controller window 11 and a circuit switch window 12. The main function of the isolation layer 1 is to protect the circuit of the temperature control layer 2 from exposure, preventing patients or medical personnel from directly contacting the temperature control layer 2 and causing danger. It is made of non-woven fabric, preferably nylon (PA) non-woven fabric, which is breathable.
[0027] The insulating bottom film 6 in the temperature control layer 2 of the new heating and heat preservation infusion patch is preferably an insulating PVC film, which is fixedly connected with the air-permeable layer 3 by heat-seal fusion welding. The temperature controller 7, flexible circuit 8, heating power supply 9 and circuit switch 10 of the heating and heat preservation control module are glued (the gluing uses Dow SYLGARD 527 transparent silicone sealant from Dow Corning, USA) to the insulating bottom film 6. The temperature controller 7 includes a temperature control switch 7-1, a temperature sensor, a temperature control chip and a display screen. The temperature sensor is used to monitor the temperature of the infusion site, transfer the temperature to the temperature control chip for temperature adjustment and finally display on the display screen, so as to facilitate observation and recording by the patient and medical staff. The temperature control chip is used to adjust the high and low of the temperature of the infusion site, and the temperature control range is 35-38℃, and the display range of the display screen is also 35-38℃. When the temperature is lower than 35℃, the temperature control switch 7-1 is opened, and the temperature control layer 2 automatically heats. When the temperature is higher than 38℃, the temperature control switch 7-1 is closed, and the temperature control layer 2 stops heating, so that the temperature of the infusion is maintained within a comfortable range. The profile of the flexible circuit 8 can be designed as an S-shaped loop according to the needs, which can make the temperature of the surface of the new heating and heat preservation infusion patch more uniform. The spacing between the wires in the S-shaped loop can be adjusted to control the sparse arrangement of the wires, thereby improving the heat preservation effect. The spacing between the wires is preferably in the range of 0.3-1.0 cm. The flexible circuit 8 is connected with the heating power supply 9 and is composed of metal wires, and the metal wires are preferably copper foil wires or silver paste wires with excellent heat conduction performance. The heating power supply 9 includes a micro battery, which provides power to the flexible circuit 8. The flexible circuit 8 converts the electrical energy into heat energy and transmits it to the infusion site. The micro battery is preferably a button cell, and the number of button cells can be flexibly configured according to the needs.
[0028] The working principle of the heating and heat preservation control module in the temperature control layer 2 is shown in Figure 4 When used clinically, first open the circuit switch 10, and the temperature of the entire circuit is at room temperature. At this time, the temperature control switch 7-1 is opened, the control circuit is in an open state, the heating power supply 9 provides power to the flexible circuit 8, the wires of the flexible circuit 8 are electrified to generate heat, and the heat is transmitted to the infusion site through the air-permeable layer 3 and the adhesive layer 4 to heat the human skin at the infusion site and the liquid to be input. When the temperature exceeds the set temperature, the temperature control switch 7-1 is closed, the control circuit is in a closed state, and the heating is stopped. When the temperature is lower than the set temperature, the temperature control switch 7-1 is opened again, the control circuit is in an open state again, and the heating is continued, thereby providing a comfortable temperature range for the input of the liquid into the human body. The heating and stopping of the heating are cycled to realize the process of intelligent heating.
[0029] The air-permeable layer 3 of the new heating and heat preservation infusion patch is a sponge layer with a porous structure, and the material includes polyvinyl alcohol or chitosan. The thickness of the air-permeable layer is 0.2-0.6 cm. Its main function is to be air-permeable and at the same time to absorb the bleeding or liquid medicine at the infusion site. The commercially available conventional polyvinyl alcohol or chitosan can be directly used.
[0030] The back adhesive layer 4 of the intelligent heating patch is an antibacterial back adhesive layer. The back adhesive is preferably a water-based acrylic pressure-sensitive adhesive. The antibacterial component contained in the back adhesive makes it antibacterial, thereby reducing the risk of infection at the infusion site.
[0031] The release layer 5 of the novel heating and heat-preserving infusion patch has an area greater than that of the back adhesive layer 4. The release layer is attached to the lower surface of the back adhesive layer 4 and completely covers the back adhesive layer 4. The material of the release layer 5 is preferably glassine paper.
[0032] The novel heating and heat-preserving infusion patch is prepared through three steps: S1, electrically connecting the temperature controller 7, the flexible circuit 8, the heating power source 9, and the circuit switch 10, and then gluing them on the insulating bottom film to obtain a heating layer; wherein the flexible heating circuit 8 is formed by silver paste printing or by copper foil bending; S2, fusing and welding the isolation layer, the heating layer, and the breathable layer by heat sealing, and then cooling and solidifying to form a shape; wherein the fusing and welding by heat sealing is performed by melting and welding the hot melt adhesive at a temperature of 160-190℃; S3, coating a back adhesive layer on the surface of the breathable layer, and attaching a release layer to the lower surface of the back adhesive layer to package a 10cm×10cm finished product; wherein the back adhesive layer is an antibacterial back adhesive layer. First, mix the back adhesive and the antibacterial stock solution in a volume ratio of 100:0.5-2.5 to obtain an antibacterial base solution; then coat the antibacterial base solution on the surface of the breathable layer by a glue coating device to obtain the antibacterial back adhesive layer; the antibacterial stock solution is a polyhexamethylene biguanide aqueous solution with a mass concentration of 20%.
[0033] Preferably, in S1, the model of the temperature controller 7 is ksd-01F, the power source 9 is composed of 5 CR2450 button cells, and the gluing adopts Dow SYLGARD 527 transparent silicone sealant (Dow Corning); in S2, the isolation layer adopts nylon non-woven fabric (100% nylon PA6 / PA66) from Wenzhou Chaocheng Nonwoven Technology Co., Ltd., the hot melt adhesive is EVA hot melt adhesive (Jowatherm 262.25), and the material of the breathable layer is polyvinyl alcohol (Qingdao Sanxi Sponge Technology Co., Ltd.) or chitosan (Jiangsu Diwo Biological Products Co., Ltd.); in S3, the back adhesive adopts water-based acrylic pressure-sensitive adhesive (water-based pressure-sensitive adhesive products CF57 or CF58 series products of Shandong Kafule High Polymer Material Co., Ltd.), and the release layer is white glassine silicone oil release paper (purchased from Dongguan Yongyu Packaging Products Co., Ltd.).
[0034] The above embodiments are not intended to limit the shape, material, structure, etc. of the present application in any form. Any simple modification, equivalent change, and modification made according to the technical essence of the present application to the above embodiments are within the protection scope of the technical scheme of the present application.
[0035] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown based on the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation structure and operation, and thus cannot be understood as a limitation on the protection content of the utility model.
[0036] If the terms "first", "second" and the like are used herein to define parts, those skilled in the art should know that the use of "first", "second" is only for the convenience of describing the utility model and simplifying the description, and the above terms have no special meaning unless otherwise stated.
[0037] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the utility model embodiments.
Claims
1. A novel heat-generating and heat-preserving infusion patch, characterized in that, It includes an isolation layer, a temperature control layer, a breathable layer, an adhesive backing layer, and a release layer stacked in sequence; the temperature control layer includes an insulating base film and a heating and heat preservation control module, and the heating and heat preservation control module includes an electrically connected temperature controller, a flexible circuit, a heating power supply, and a circuit switch.
2. The novel heating and heat-preserving infusion patch as described in claim 1, characterized in that, The heating and heat preservation control module is fixed on the insulating base film; the isolation layer is fixedly connected to the heating and heat preservation control module, and the breathable layer is fixedly connected to the insulating base film.
3. The novel heating and heat-preserving infusion patch as described in claim 1, characterized in that, The temperature controller includes a temperature control switch, a temperature sensor, a temperature control chip, and a display screen. The temperature control chip has a temperature control range of 35-38℃.
4. The novel heating and heat-preserving infusion patch as described in claim 1, characterized in that, The flexible circuit has an S-shaped outline, and the conductors of the flexible circuit include copper foil wires or silver paste wires, which are connected to the heating power source.
5. The novel heating and heat-preserving infusion patch as described in claim 1, characterized in that, The heating power source includes a micro battery, which includes a button cell battery.
6. The novel heating and heat-preserving infusion patch as described in claim 1, characterized in that, The insulating layer has a window, and the thermostat and the circuit switch are fixed on the insulating base film at positions corresponding to the window; the insulating layer is made of non-woven fabric.
7. The novel heating and heat-preserving infusion patch as described in claim 1, characterized in that, The breathable layer is a porous sponge layer, and the material of the sponge layer includes polyvinyl alcohol or chitosan. The thickness of the breathable layer is 0.2-0.6 cm.
8. The novel heating and heat-preserving infusion patch as described in claim 1, characterized in that, The adhesive backing layer is a water-based acrylic pressure-sensitive adhesive.
9. The novel heating and heat-preserving infusion patch as described in claim 1, characterized in that, The release layer is made of glassine paper; the release layer is adhered to the lower surface of the adhesive layer and completely covers the adhesive layer.