CN111658905A - Constant temperature device of medical infusion bag - Google Patents
Constant temperature device of medical infusion bag Download PDFInfo
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- CN111658905A CN111658905A CN202010593442.7A CN202010593442A CN111658905A CN 111658905 A CN111658905 A CN 111658905A CN 202010593442 A CN202010593442 A CN 202010593442A CN 111658905 A CN111658905 A CN 111658905A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/44—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
- A61M5/445—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media the media being heated in the reservoir, e.g. warming bloodbags
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D11/104—Polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/52—Electrically conductive inks
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
Abstract
The invention discloses a constant temperature device of a medical infusion bag, which comprises a constant temperature device body, wherein the constant temperature device body comprises a lining, a shell and a heating layer positioned between the lining and the shell; wherein: the heating layer comprises a substrate with a foldable flexible part and a heating part, the flexible part adopts a hollow structure, and the heating part forms a heating area by printing an ink composition; the heating section is provided with a plurality of strip-shaped heating films, and an arc-shaped strip-shaped elastic body is arranged on any one heating film; the constant temperature device body is sleeved outside the infusion bag body, the end where the hook hole of the infusion bag body is located sequentially passes through the opening end and the closing end of the lining, and the closing end is provided with a small hole for exposing the hook hole on the surface; when the constant temperature device body is not sleeved with the infusion bag body, the arc-shaped bow part of the elastic body faces the lining position and is in an original state; when the constant temperature device body is sleeved with the infusion bag body, the arc-shaped bow part of the elastic body is in an expansion state towards the shell.
Description
Technical Field
The invention belongs to the field of medical devices, and relates to a constant temperature device of a medical infusion bag.
Background
Along with the development of medical technology in the market, the requirements of people on medical environment are higher and higher, the safety of the medical process is strictly required in the medical process, the comfort degree of the medical process is also higher, in the field of infusion, the traditional direct infusion method is continuously used, or a heater attached to an infusion tube is used for simple heating, the heater can feel cold when a patient conducts infusion, the heater attached to the infusion tube in the market mainly takes a resistance wire as a main part, the infusion tube with the length of about 3cm is taken near the infusion tube for heating, and the infusion body is heated mainly by the temperature difference in a heat conduction mode. Therefore, the temperature difference is large, pharmacological changes are easy to be generated on antibiotics or biological products such as amino acid, the uncomfortable response of a human body is caused, the function is single, and the humanized heating design is lacked.
Disclosure of Invention
The invention aims to: the utility model provides a constant temperature device of medical infusion bag, has solved the problem that current infusion bag can not heat.
The technical scheme adopted by the invention is as follows:
a constant temperature device of a medical infusion bag comprises a constant temperature device body, wherein the constant temperature device body comprises a lining, a shell and a heating layer positioned between the lining and the shell; wherein: the heating layer comprises a substrate with a foldable flexible part and a heating part, the flexible part adopts a hollow structure, and the heating part forms a heating area by printing an ink composition; the heating section is provided with a plurality of strip-shaped heating films, and an arc-shaped strip-shaped elastic body is arranged on any one heating film; the constant temperature device body is sleeved outside the infusion bag body, the end where the hook hole of the infusion bag body is located sequentially passes through the opening end and the closing end of the lining, and the closing end is provided with a small hole for exposing the hook hole on the surface; when the constant temperature device body is not sleeved with the infusion bag body, the arc-shaped bow part of the elastic body faces the lining position and is in an original state; when the constant temperature device body is sleeved with the infusion bag body, the arc-shaped bow part of the elastic body is in an expansion state towards the shell;
the ink composition comprises the following components in percentage by mass: 15% of polybutadiene glycol, 8% of tetrahydrofuran-propylene oxide copolymer glycol, 10% of polypropylene oxide-castor oil polyol, 5% of methyl phenyl silicone resin, 5% of epoxy modified resin, 1% of polydiethylene glycol adipate, 1% of 1, 2-propylene glycol adipate, 0.2% of leveling agent, 0.1% of defoaming agent, 3% of thickening agent, 2% of coupling agent, 10% of DBE, 5% of PMA, 5% of CAC, 10% of graphite, 15% of carbon black and 3% of graphene oxide.
Further, the substrate is made of PU or PVC materials.
Further, the conductive particles include graphite, carbon black, graphene oxide.
Further, the graphite is flake graphite with the particle size of 0.5-2 μm; the particle diameter D50 of the carbon black is 30 nm-100 nm; the particle size of the graphene oxide is 1 nm-5 mu m.
Furthermore, the shell is provided with 5-position 8-section nixie tubes, the nixie tubes are connected with the microcontroller through wires, and the microcontroller collects liquid information of the infusion bag body through the liquid level sensor probe and sends the liquid information to the nixie tubes for display after processing.
Furthermore, the nixie tubes are uniformly arranged on the shell in the horizontal direction, and the number of the nixie tubes is more than 2.
Further, the constant temperature device body still includes insulating layer and waterproof layer.
Further, the heat-insulating layer adopts an aluminum foil light-reflecting heat-insulating layer, and the waterproof layer adopts double-sided laminated PVC (polyvinyl chloride) with mesh fabric
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the constant temperature device can change along with the change of the shape of the infusion bag, and the whole shape of the infusion bag can change when the infusion bag is in a saturated state at first and is infused to the middle and later stages; the constant temperature equipment in this scheme can make infusion bag all can the thermally equivalent when any form through the elastomer design on layer that generates heat.
2. The constant temperature device realizes wide-angle detection of the liquid content in the infusion bag through the nixie tube, solves the problems that medical care personnel cannot monitor each sickbed constantly due to shortage of medical resources in the prior art, or the number of the sterile sickrooms is reduced as much as possible, so that the wide-angle design enables the medical care personnel to see a patient in all directions without dead angles outside the sickrooms in a long distance, and the change is convenient for the first time.
3. The ink composition used in the invention has excellent comprehensive performances such as flexibility, high temperature resistance, adhesiveness, fluidity and the like, so that the resistance of a heating film prepared by using the conductive ink composition can not be obviously changed after being folded for many times, and the problem that the existing conductive ink in the prior art has poor flexibility and can be broken at a bent position or cannot be used due to the fact that the resistance value is increased even if the conductive ink is not broken is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive effort, wherein:
FIG. 1 is a schematic view of the overall structure of the thermostat device of the present invention;
FIG. 2 is a schematic view of the heat generating layer according to the present invention in its original state;
FIG. 3 is a schematic view showing an expanded state of the heat generating layer according to the present invention;
FIG. 4 is a cross-sectional view of a heat generating layer according to the present invention
The labels in the figure are: 1-transfusion bag body, 2-hook hole, 3-constant temperature device body, 4-base plate, 5-heating part and 6-flexible part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Example one
In the thermostatic device for a medical infusion bag according to the preferred embodiment of the present invention,
a constant temperature device of a medical infusion bag comprises a constant temperature device body 3, wherein the constant temperature device body 3 comprises a lining, a shell and a heating layer positioned between the lining and the shell; wherein:
the heating layer comprises a substrate 4 with a foldable flexible part 6 and a heating part 5, wherein the flexible part adopts a hollow structure, and the heating part forms a heating area by printing ink composition; the heating section is provided with a plurality of strip-shaped heating films, and an arc-shaped strip-shaped elastic body is arranged on any one heating film;
the constant temperature device body 3 is sleeved outside the infusion bag body 1, the end of the infusion bag body 1 where the hook hole 2 is located passes through the opening end and the closing end of the lining in sequence, and the closing end is provided with a small hole for exposing the hook hole 2 on the surface;
when the constant temperature device body 3 is not sleeved with the infusion bag body 1, the arc-shaped bow part of the elastic body faces the lining position and is in an original state; when the constant temperature device body 3 is sleeved with the infusion bag body 1, the arc-shaped bow part of the elastic body is in an expansion state towards the shell;
the ink composition comprises the following components in percentage by mass: 15% of polybutadiene glycol, 8% of tetrahydrofuran-propylene oxide copolymer glycol, 10% of polypropylene oxide-castor oil polyol, 5% of methyl phenyl silicone resin, 5% of epoxy modified resin, 1% of polydiethylene glycol adipate, 1% of 1, 2-propylene glycol adipate, 0.2% of leveling agent, 0.1% of defoaming agent, 3% of thickening agent, 2% of coupling agent, 10% of DBE, 5% of PMA, 5% of CAC, 10% of graphite, 15% of carbon black and 3% of graphene oxide.
As can be seen in fig. 1-4: the constant temperature device can change along with the change of the shape of the infusion bag, and the whole shape of the infusion bag can change when the infusion bag is in a saturated state at first and is infused to the middle and later stages; the constant temperature device in the scheme can enable the infusion bag to be uniformly heated in any form through the design of the elastomer of the heating layer, a constant temperature control mode is adopted in the invention, when the temperature of liquid in the infusion bag reaches 36 ℃, the infusion bag enters a constant temperature mode, the specific constant temperature control mode is the prior art, an oil leakage prevention and rapid heating mode is added, and the scheme is not repeated;
the ink composition used in the invention has excellent comprehensive performances such as flexibility, high temperature resistance, adhesiveness, fluidity and the like, so that the resistance of a heating film prepared by using the conductive ink composition can not be obviously changed after being folded for many times, and the problem that the existing conductive ink in the prior art has poor flexibility and can be broken at a bent position or cannot be used due to the fact that the resistance value is increased even if the conductive ink is not broken is solved;
in the test, the following comparative examples were used.
Comparative example 1: the conductive ink composition comprises the following components in percentage by mass: 10% of polybutadiene glycol, 5% of tetrahydrofuran-propylene oxide copolymerized glycol, 5% of polypropylene oxide-castor oil polyol, 5% of methyl phenyl silicone resin, 5% of epoxy modified resin, 1% of polydiethylene glycol adipate, 1% of 1, 2-propylene glycol adipate, 0.1% of leveling agent, 0.1% of defoaming agent, 3% of thickening agent, 1% of coupling agent, 10% of DBE, 3% of PMA, 3% of CAC, 6% of graphite, 10% of carbon black and 1% of graphene oxide. Wherein the mass sum of the polybutadiene diol, the tetrahydrofuran-propylene oxide copolymerized diol, the polypropylene oxide-castor oil polyol, the methyl phenyl silicone resin and the epoxy modified resin is 1.8 times that of the graphite, the carbon black and the graphene oxide.
Comparative example 2: the conductive ink composition comprises the following components in percentage by mass: 30% of polybutadiene glycol, 10% of tetrahydrofuran-propylene oxide copolymerized glycol, 10% of polypropylene oxide-castor oil polyol, 5% of methyl phenyl silicone resin, 5% of epoxy modified resin, 1% of polydiethylene glycol adipate, 1% of 1, 2-propylene glycol adipate, 0.1% of leveling agent, 0.1% of defoaming agent, 3% of thickening agent, 1% of coupling agent, 10% of DBE, 3% of PMA, 3% of CAC, 6% of graphite, 10% of carbon black and 1% of graphene oxide. Wherein the mass sum of the polybutadiene diol, the tetrahydrofuran-propylene oxide copolymerized diol, the polypropylene oxide-castor oil polyol, the methyl phenyl silicone resin and the epoxy modified resin is 3.5 times of the mass sum of the graphite, the carbon black and the graphene oxide.
Comparative example 3: the conductive ink composition comprises the following components in percentage by mass: 10% of polybutadiene glycol, 5% of tetrahydrofuran-propylene oxide copolymerized glycol, 5% of polypropylene oxide-castor oil polyol, 5% of methyl phenyl silicone resin, 5% of epoxy modified resin, 1% of polydiethylene glycol adipate, 1% of 1, 2-propylene glycol adipate, 0.1% of leveling agent, 0.1% of defoaming agent, 3% of thickening agent, 1% of coupling agent, 10% of DBE, 3% of PMA, 3% of CAC, 8% of graphite, 14% of carbon black and 3% of graphene oxide. Wherein the mass sum of the polybutadiene diol, the tetrahydrofuran-propylene oxide copolymerized diol, the polypropylene oxide-castor oil polyol, the methyl phenyl silicone resin and the epoxy modified resin is 1.2 times of the mass sum of the graphite, the carbon black and the graphene oxide.
Comparative example 4
Different from the comparative example 3, the mass sum of the polybutadiene diol, the tetrahydrofuran-propylene oxide copolymerized diol, the polypropylene oxide-castor oil polyol, the methyl phenyl silicone resin and the epoxy modified resin is 1.1 times of the mass sum of the graphite, the carbon black and the graphene oxide.
Comparative example 5
Different from the comparative example 3, the mass sum of the polybutadiene diol, the tetrahydrofuran-propylene oxide copolymerized diol, the polypropylene oxide-castor oil polyol, the methyl phenyl silicone resin and the epoxy modified resin is 3.6 times of the mass sum of the graphite, the carbon black and the graphene oxide.
Comparative example 6
Different from the embodiment 1, polybutadiene diol is not adopted, and the amount of other adhesives is increased, so that the total amount of the adhesives is 1.5 times of the sum of the mass of graphite, carbon black and graphene oxide.
Comparative example 7
Different from the embodiment 1, tetrahydrofuran-propylene oxide copolymerized glycol is not adopted, the resin quality is increased, and the total amount of the adhesive is ensured to be 1.5 times of the sum of the qualities of graphite, carbon black and graphene oxide.
Comparative example 8
Different from the embodiment 1, the polyoxypropylene-castor oil polyol is not adopted, the resin quality is increased, and the total amount of the adhesive is ensured to be 1.5 times of the sum of the qualities of graphite, carbon black and graphene oxide.
Comparative example 9
Different from the embodiment 1, polybutadiene diol, tetrahydrofuran-propylene oxide copolymer diol and polypropylene oxide-castor oil polyol are not used, the resin quality is increased, and the total amount of the adhesive is ensured to be 1.5 times of the sum of the graphite, the carbon black and the graphene oxide.
Test example 1
The conductive ink compositions obtained in example 1 and comparative examples 1 to 9 were tested for fluidity, conductive stability, abrasion resistance, and adhesion, and the fluidity of the conductive ink was determined according to the viscosity of the conductive ink. Viscosity is a property of the conductive ink that prevents its flow internally. The viscosity is too small, the fluidity of the conductive ink is too large, the ink film imprint is easy to expand in the printing process, the line definition is reduced, and the fine line resolution and the ink film thickness are difficult to meet the requirements. However, the viscosity is too high, the conductive ink has good rolling property and poor fluidity under a certain shearing rate, is not easy to transfer to a printing material, gaps, broken lines and needle holes appear in the middle of an ink film, and especially the printing uniformity of thin wires is seriously reduced; the detection modes of the wear resistance, the adhesion, the fluidity and the conductive stability of the conductive ink are all the prior art, and refer to papers 'preparation and performance characterization of the conductive ink' and 'research on the preparation and performance of the conductive ink' Chenlei and Yijie (chemical research in Hubei province). The results are shown in Table 1. When the wear resistance is detected, a grinding wheel is used for applying 2KG force for friction for 4000 times, the reciprocating motion is counted as twice, a wear resistance tester is used for testing the wear degree, the wear resistance is calculated through the wear degree, and the condition that the wear resistance is greater than 75 percent is that the product is qualified, and the method is the prior art. Adhesion was tested using 3M610 tape.
TABLE 1 conductive ink Performance test results
As shown in table 1, when the amount of the adhesive is much larger than that of the conductive particles, the conductivity is unstable, and the viscosity changes, when the amount of the conductive particles is large, the solid content in the ink is large, the viscosity is increased, and the fluidity of the ink is affected by the excessive viscosity; when the resin is directly used as the adhesive alone and any component of polybutadiene diol, tetrahydrofuran-propylene oxide copolymer diol and polypropylene oxide-castor oil polyol is not adopted for compounding, the viscosity of the ink is obviously improved
Test example 2
Respectively using the conductive ink compositions obtained in the embodiment 1 and the comparative examples 1 to 9 as foldable graphene heating films, wherein each foldable graphene heating film comprises a substrate with a foldable flexible part and a heating part, the flexible part adopts a hollow structure, the heating part forms a heating area by printing the ink composition, the heating film is subjected to bending resistance test detection, and the resistance after folding is tested; the results are shown in Table 2.
TABLE 2 heating film bending test results
According to the table 2, the compounded adhesive can obviously improve the bending resistance of the conductive ink, and the polybutadiene diol, the tetrahydrofuran-propylene oxide copolymer diol and the polyoxypropylene-castor oil polyol act simultaneously to achieve unexpected effects, and the embodiment 1 is the optimal choice for the invention by combining the table 1 and the table 2;
in addition, in the formula of the embodiment 1, the electrothermal conversion rate of the heating film is as high as 99.6%, the far infrared conversion rate (radiation conversion rate) is more than 85%, the far infrared radiation is mainly used as the energy transfer mode, the penetration is mainly used, and the energy is not transferred to the heated carrier by means of temperature difference in the heat conduction or convection mode. Because the transfusion medicine is conventionally classified into antibiotics, biological products or blood products, the energy transmission mode adopted by the scheme is mainly far infrared radiation and mainly penetration, and pharmacology cannot be damaged.
Therefore, the temperature is uniform, and local overhigh temperature can not be generated. We divided the heating into 2 stages, the first stage, rapidly heating the sodium chloride liquid to the body temperature or the part not exceeding the drug. In the second stage, the infused medicine is added, which belongs to the heat preservation stage and has no influence on pharmacology.
Example two
In this embodiment, on the basis of the first embodiment, the substrate is made of PU or PVC. The conductive particles comprise graphite, carbon black and graphene oxide. The graphite is flake graphite with the particle size of 0.5-2 μm; the particle diameter D50 of the carbon black is 30 nm-100 nm; the particle size of the graphene oxide is 1 nm-5 mu m.
Further, the conductive particles are compounded, and all the particles are filled with each other; the graphene oxide can be regarded as a non-traditional soft material, has the characteristics of a polymer, a colloid, a film and an amphoteric molecule, and has large specific surface area and good dispersibility; the conductivity of graphite is one hundred times higher than that of common non-metallic ore. The thermal conductivity of the material exceeds that of metal materials such as steel, iron, lead and the like; the carbon black particles are fine, the reticular chains are tightly stacked, the specific surface area is large, the number of particles per unit mass is large, and a chain type conductive structure can be formed in the polymer; the graphene oxide layer and the carbon black construct a stable three-dimensional structure which takes the graphene layer as a matrix and carbon black strings formed by the carbon black as a framework and are uniformly dispersed on the graphene oxide layer or the edge, and the three-dimensional structure not only provides a stable three-dimensional pore structure but also provides a three-dimensional conductive network; the conductive carbon black and the conductive graphite powder are compounded, so that the conductive effect is better than that of a single conductive filler; the three materials are compounded, so that the conductive performance is stable, and the heat conduction effect is good.
EXAMPLE III
On the basis of embodiment one, the shell sets up 8 sections of charactron on 5 positions, and the charactron passes through the wire and is connected with microcontroller, and microcontroller passes through the liquid level sensor probe and gathers infusion bag body 1's liquid information, sends to the charactron after handling and shows. The nixie tubes are uniformly arranged on the shell in the horizontal direction, and the number of the nixie tubes is more than 2.
The liquid content in the infusion bag is detected at a wide angle through the nixie tube, the problem that medical staff cannot monitor each sickbed constantly due to shortage of medical resources in the existing state or the situation that an aseptic ward is in and out of the sickroom is reduced as much as possible is solved, and the wide-angle design enables the medical staff to see a patient in terms of situation remotely outside the sickroom in an all-round dead angle mode and facilitates replacement at the first time.
Example 4
In this embodiment, on the basis of the first embodiment, the constant temperature device body 3 further includes a heat insulating layer and a waterproof layer. The heat-insulating layer adopts an aluminum foil light-reflecting heat-insulating layer, and the waterproof layer adopts double-faced laminated PVC with mesh fabric. The aluminum foil reflecting and heat insulating layer provides heat preservation and heat insulation effects.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents and improvements made by those skilled in the art within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a constant temperature equipment of medical infusion bag which characterized in that: the constant temperature device comprises a constant temperature device body (3), wherein the constant temperature device body (3) comprises a lining, a shell and a heating layer positioned between the lining and the shell; wherein: the heating layer comprises a substrate (4) provided with a foldable flexible part (6) and a heating part (5), wherein the flexible part adopts a hollow structure, and the heating part forms a heating area by printing an ink composition; the heating section is provided with a plurality of strip-shaped heating films, and an arc-shaped strip-shaped elastic body is arranged on any one heating film; the constant temperature device body (3) is sleeved outside the infusion bag body (1), the end of the infusion bag body (1) where the hook hole (2) is located passes through the opening end and the closing end of the lining in sequence, and the closing end is provided with a small hole for exposing the hook hole (2) on the surface; when the constant temperature device body (3) is not sleeved with the infusion bag body (1), the arc-shaped arch part of the elastic body faces the lining position and is in an original state; when the constant temperature device body (3) is sleeved with the infusion bag body (1), the arc-shaped bow part of the elastic body is in an expansion state towards the shell;
the ink composition comprises the following components in percentage by mass: 15% of polybutadiene glycol, 8% of tetrahydrofuran-propylene oxide copolymer glycol, 10% of polypropylene oxide-castor oil polyol, 5% of methyl phenyl silicone resin, 5% of epoxy modified resin, 1% of polydiethylene glycol adipate, 1% of 1, 2-propylene glycol adipate, 0.2% of leveling agent, 0.1% of defoaming agent, 3% of thickening agent, 2% of coupling agent, 10% of DBE, 5% of PMA, 5% of CAC, 10% of graphite, 15% of carbon black and 3% of graphene oxide.
2. The thermostatic device for medical infusion bags according to claim 1, wherein: the substrate is made of PU or PVC materials.
3. The thermostatic device for medical infusion bags according to claim 2, wherein: the conductive particles comprise graphite, carbon black and graphene oxide.
4. The thermostatic device for medical infusion bags according to claim 3, wherein: the graphite is flake graphite with the particle size of 0.5-2 μm; the particle diameter D50 of the carbon black is 30 nm-100 nm; the particle size of the graphene oxide is 1 nm-5 mu m.
5. The thermostatic device for medical infusion bags according to claim 1, wherein: the shell is provided with 5-position 8-section nixie tubes, the nixie tubes are connected with the microcontroller through wires, and the microcontroller collects liquid information of the infusion bag body (1) through the liquid level sensor probe and sends the liquid information to the nixie tubes for display after processing.
6. The thermostatic device for medical infusion bags according to claim 5, wherein: the nixie tubes are uniformly arranged on the shell in the horizontal direction, and the number of the nixie tubes is more than 2.
7. The thermostatic device for medical infusion bags according to claim 1, wherein: the constant temperature device body (3) further comprises a heat insulation layer and a waterproof layer.
8. The thermostatic device for medical infusion bags according to claim 7, wherein: the heat-insulating layer adopts an aluminum foil light-reflecting heat-insulating layer, and the waterproof layer adopts double-faced laminated PVC with mesh fabric.
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