Medical carbon fiber hot compress patch

Abstract

The invention relates to the technical field of hot compress patches, in particular to a medical carbon fiber hot compress patch which comprises iron powder, activated carbon, carbon fiber felt, resin, a catalyst and a medicine. By introducing the carbon fiber felt and the resin, the heating uniformity and the structural strength are remarkably improved; and meanwhile, the device has a good uniform heat dissipation effect and a good temperature control effect, and is suitable for adjuvant therapy of various pains and inflammations.

Description

Technical Field

[0001] The invention relates to the technical field of hot compress patches, and in particular to a medical carbon fiber hot compress patch. Background Art

[0002] Medical hot compress patch is a medical device that contains heating material and is encapsulated in medical non-woven fabric or other medical materials. It is mainly used to promote local blood circulation, assist in anti-inflammatory, swelling and pain relief. The working principle of the hot compress patch is to generate heat through the heating material, and then transfer the heat to the affected area, thereby playing a therapeutic role. Hot compress patches are clinically suitable for a variety of situations, such as exogenous wind-cold, cough, asthma, upper respiratory tract infection caused by cold evil, etc.; it can also be used for symptoms such as abdominal pain and bloating caused by cold; and whole body pain caused by rheumatism, including symptoms such as periarthritis of the shoulder and neck and shoulder pain.

[0003] Existing medical hot compress patches mainly generate heat through chemical reactions to relieve pain and promote blood circulation. However, traditional hot compress patches may have problems with uneven heat dissipation, resulting in local overheating or insufficient heat dissipation. At the same time, hot compress patches are also insufficient in temperature control effects, and have low structural strength and are easily damaged. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a medical carbon fiber hot compress patch, which significantly improves the heating uniformity and structural strength by introducing carbon fiber felt and polymer absorbent resin; at the same time, it has good uniform heat dissipation and temperature control effects, and is suitable for the auxiliary treatment of various pains and inflammations.

[0005] Technical Solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a medical carbon fiber hot compress patch, which comprises a heating layer, wherein the heating layer comprises a substrate layer and a drug coating coated on the substrate layer; the substrate layer adopts carbon fiber felt; the drug coating comprises iron powder, activated carbon, resin, catalyst and drug.

[0008] Furthermore, the resin includes one or more of sodium polyacrylate, polyacrylamide and carboxymethyl cellulose.

[0009] Preferably, the resin is sodium polyacrylate. Specifically, sodium polyacrylate can be sodium polyacrylate 260H produced by Toagosei Co., Ltd. of Japan.

[0010] Furthermore, the drug may be a Chinese medicine extract, specifically including one or more extracts of Artemisia annua, Cornus officinalis, Clerodendrum affine, Sophora flavescens, Gardenia jasminoides, Anemarrhena asphodeloides, Forsythia suspensa, Rabdosia rubescens and Tripterygium wilfordii.

[0011] Furthermore, the Chinese medicine extract is prepared by the following method: the medicine and water are mixed in a weight ratio of 1:3-8, and then heated at a constant temperature of 100°C for 1-5 hours, and then filtered through a 50-100 mesh filter.

[0012] Generally, different Chinese herbal medicines or a combination of several of them are used for different effects. They are mainly used to reduce swelling and relieve pain, clear away heat and detoxify, and are suitable for rheumatism, rheumatoid arthritis, arthritis, periarthritis of the shoulder, cervical spondylosis, back and leg pain, migraine and other symptoms.

[0013] Mugwort: It has the effects of warming the meridians and dredge the collaterals, promoting qi and activating blood circulation, removing dampness and cold, reducing swelling and dispersing nodules, restoring yang and rescuing from adverse conditions, and calming the fetus.

[0014] Cornus: Cornus is divided into two types: Cornus officinalis and Evodia rutaecarpa. Cornus officinalis has the effects of nourishing the liver and kidneys, astringing the essence and qi, and strengthening collapse; Evodia rutaecarpa has the effects of dispelling cold and relieving pain, relieving adverse qi and stopping vomiting, and assisting yang and stopping diarrhea.

[0015] Stinking Paulownia: It has the effects of removing dampness and detoxifying, killing bacteria and reducing inflammation, relieving itching and relieving pain, warming the meridians and dispersing cold, clearing heat and drying dampness.

[0016] Sophora flavescens: It has the effects of clearing away heat and dampness, relieving wind and killing insects, and being a diuretic. It is mainly used to treat diarrhea due to damp heat, intestinal wind and bloody stools, jaundice, difficulty urinating, edema, leucorrhea and vaginal itching, etc.

[0017] Gardenia: It has the effects of clearing away heat and purging fire, cooling blood and detoxifying, promoting bile secretion and relieving jaundice. It can be used for symptoms such as fever and restlessness due to heat, jaundice caused by damp heat, vomiting and bleeding due to blood heat, red and swollen eyes, and fire poison sores.

[0018] Anemarrhena asphodeloides: It has the effects of clearing away heat and purging fire, promoting fluid production and moistening dryness. It is often used to treat fever, thirst, lung heat and dry cough, internal heat and thirst, intestinal dryness and constipation.

[0019] Forsythia: It has the effects of clearing away heat, detoxifying, reducing swelling and dispersing nodules. It is often used to treat exogenous wind-heat, the initial stage of febrile disease, hot and painful stranguria, carbuncles, sores and other symptoms.

[0020] Rubescens: It has the effects of clearing away heat and detoxifying, cooling blood and stopping bleeding, reducing swelling and dispersing nodules, promoting blood circulation, and having antibacterial and anti-inflammatory effects.

[0021] Trillium: It has the effects of removing blood stasis and dredging menstruation, promoting qi and eliminating accumulation, breaking up blood and eliminating symptoms. It is used to treat symptoms such as blood stasis, amenorrhea, dysmenorrhea, abdominal pain due to postpartum blood stasis, bruises and swelling, and abdominal pain due to food accumulation.

[0022] Furthermore, the catalyst is at least one of sodium chloride, potassium chloride and calcium chloride. The catalyst can promote the heat generation of iron reaction.

[0023] Furthermore, the preparation method of the carbon fiber felt is as follows:

[0024] S1: Raw material preparation: blending raw materials with polymer fibers to form composite fibers; wherein the weight ratio of the raw materials to the polymer fibers is 2-9:1; preferably, the weight ratio of the raw materials to the polymer fibers is 3-4:1;

[0025] Most preferably, the weight ratio of raw materials to polymer fibers is 3: 1. Preferably, the polymer fibers are asphalt-based raw fibers.

[0026] S2: Web forming: The mixed fibers are web-formed by air-laid web forming and carded web forming processes; then, the web is enhanced and shaped by a needle punching machine to obtain white felt;

[0027] S3: Irradiation pre-oxidation: the formed white felt is placed in an irradiation chamber and irradiated by high-energy electron beam for rapid transmission pre-oxidation to remove non-carbon components and obtain pre-oxidized felt; wherein the irradiation dose of pre-oxidation is usually 100-400 kGy and the time is 10 minutes;

[0028] S4: High temperature carbonization and graphitization: put the pre-oxidized felt into a high temperature furnace for carbonization reaction at a temperature range of 500℃ to 2600℃ for 1-12h, and control the vacuum degree to obtain carbon fiber soft felt; then high-temperature chemical purification process technology is used to prepare high-purity carbon fiber soft felt. The preferred temperature is 1000-2300℃.

[0029] The specific method of the purification process is as follows: high-temperature treatment is performed in an inert gas environment such as nitrogen or argon, the temperature is between 2000-3000° C., and the time is 1 to 4 hours.

[0030] Furthermore, the thickness of the carbon fiber felt is 0.5-5 mm; preferably, the thickness of the carbon fiber felt is 1-3 mm; most preferably, the thickness of the carbon fiber felt is 2 mm.

[0031] Furthermore, the density of the carbon fiber felt is 0.1-0.3 g / cm 3 , strength is 200-400Mpa;

[0032] Furthermore, the density of the carbon fiber felt is 0.2 g / cm 3 , strength is 300Mpa;

[0033] The raw material in step S1 is at least one of acrylonitrile-based white silk, viscose-based white silk or asphalt-based raw silk; the polymer fiber is polypropylene fiber or nylon fiber;

[0034] Furthermore, by weight, it includes 35-50 parts of iron powder, 8-20 parts of activated carbon, 5-12 parts of carbon fiber felt, 0.1-5 parts of resin, 1-7 parts of catalyst and 25-38 parts of medicine.

[0035] Furthermore, by weight, it includes 38-42 parts of iron powder, 12-18 parts of activated carbon, 8-10 parts of carbon fiber felt, 1-3 parts of resin, 3-5 parts of catalyst and 30-35 parts of medicine.

[0036] Furthermore, by weight, it includes 40 parts of iron powder, 15 parts of activated carbon, 10 parts of carbon fiber felt, 1.5 parts of resin, 3.5 parts of catalyst and 30 parts of medicine.

[0037] A method for preparing a medical carbon fiber hot compress patch, the preparation steps comprising:

[0038] S1: adding the resin to the drug, and then adding activated carbon and stirring evenly to obtain a first mixture;

[0039] S2: mixing the iron powder and the catalyst and stirring them uniformly to obtain a second mixture;

[0040] S3: adding the second mixture to the first mixture, stirring evenly, and coating the mixture evenly on the carbon fiber felt layer using a coating process to obtain a heat-generating layer;

[0041] S4: Put the heating layer into a non-woven bag, fix it with pressure-sensitive tape, and put it into a sealed bag for storage.

[0042] Furthermore, the heating layer has a thickness of 2 to 15 mm; and the non-woven bag has a thickness of 0.4 to 4 mm.

[0043] Among them, medical tape is a commercially available product, and 3M can be selected. TM 1522 Transparent Medical Tape.

[0044] In the present invention, the carbon fiber felt can emit 8um-15um far infrared rays when it is heated. This far infrared light wave can resonate with the human body, which helps to improve blood circulation, eliminate fatigue, and restore human functions. From the perspective of temperature distribution: carbon fiber can provide a more uniform temperature distribution than ordinary materials, which is very important for providing a comfortable heating experience. In addition, carbon fiber will make the heating patch structure stable and more tear-resistant.

[0045] Beneficial Effects

[0046] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0047] (1) The medical carbon fiber hot compress patch of the present invention can promote local blood circulation, assist in anti-inflammatory, anti-swelling and analgesic effects, and is suitable for rheumatism, rheumatoid arthritis, arthritis, scapulohumeral periarthritis, cervical spondylosis, low back and leg pain, traumatic injury, gout, migraine and other symptoms.

[0048] (2) Compared with ordinary heating patches, the medical carbon fiber heating patch of the present invention has better uniform heat dissipation and temperature control effects and is suitable for application over a larger area.

[0049] (3) Carbon fiber felt is used to evenly dissipate heat and improve structural strength. High molecular weight water-absorbing resin maintains humidity and prolongs heating time.

[0050] (4) The present invention significantly improves the heating uniformity and structural strength by introducing carbon fiber felt and polymer absorbent resin; at the same time, it has good uniform heat dissipation and temperature control effects, and is suitable for the auxiliary treatment of various pains and inflammations. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The present invention will be further described below in conjunction with the embodiments.

[0053] The manufacturers and models of the raw materials in the embodiments and comparative examples are as follows:

[0054] Sodium polyacrylate, which can be produced by Toagosei Co., Ltd. of Japan, model 260H;

[0055] Medical tape is a commercially available product, and 3M can be selected. TM 1522 transparent medical tape;

[0056] Asphalt-based raw yarn: Sinoma Technology, ZC-30;

[0057] Polypropylene fiber: Changzhou Tianyi Engineering Fiber Co., Ltd., PP Fiber.

[0058] (I) Embodiment

[0059] Embodiment 1:

[0060] The preparation of carbon fiber soft felt includes the following steps:

[0061] (1) Raw material preparation: asphalt-based raw fibers and polypropylene fibers are blended in a weight ratio of 3:1 to form composite fibers;

[0062] (2) Web forming: The mixed fibers are web-formed by air-laying and carding processes; subsequently, the web is enhanced and shaped by a needle punching machine to obtain white felt.

[0063] (3) Irradiation pre-oxidation: The formed white felt is placed in an irradiation chamber and irradiated by high-energy electron beam for rapid transmission pre-oxidation to remove non-carbon components and obtain pre-oxidized felt. The irradiation dose for pre-oxidation is 300 kGy for 10 min.

[0064] (4) High-temperature carbonization and graphitization: The pre-oxidized felt is placed in a high-temperature furnace for carbonization reaction at a temperature range of 1500°C for 1 hour, and the vacuum degree is controlled to obtain a carbon fiber soft felt; then a high-temperature chemical purification process is used to prepare a high-purity carbon fiber soft felt. The high-temperature chemical purification process is a purification process at 2600 degrees for 1 hour under a nitrogen atmosphere to prepare a carbon fiber soft felt with a density of 0.2g / cm 3 , strength 300MPa, thickness 2mm.

[0065] The preparation method of the wormwood-type medical carbon fiber hot compress patch is as follows:

[0066] (1) Weighing: Weigh the components according to the following weight parts: 40 parts of reduced iron powder, 15 parts of activated carbon, 10 parts of carbon fiber felt (2 mm thickness), 1.5 parts of sodium polyacrylate, 3.5 parts of sodium chloride, and 30 parts of traditional Chinese medicine extract (wormwood);

[0067] The Chinese medicine extract (wormwood) is prepared by mixing the medicine and water in a weight ratio of 1:3, and then heating at a constant temperature of 100°C for 2 hours, and then filtering through a 50-100 mesh filter to obtain;

[0068] (2) Preparation: adding sodium polyacrylate to a Chinese medicine extract to fully swell, adding activated carbon and stirring evenly to obtain a first mixture; stirring reduced iron powder and sodium chloride evenly to obtain a second mixture;

[0069] (3) Mixing: adding the second mixture to the first mixture, stirring evenly, and coating the mixture evenly on the carbon fiber felt layer using a coating process to obtain a heat-generating layer;

[0070] (4) Assembly: Put the heating layer into a non-woven bag with a thickness of 0.5 mm, fix it with tape, and put it into a sealed bag for storage.

[0071] Comparative Example 1:

[0072] The only difference from Example 1 is that no sodium polyacrylate is added.

[0073] Comparative Example 2:

[0074] The only difference from Example 1 is that no sodium chloride is added.

[0075] Comparative Example 3:

[0076] The only difference from Example 1 is that no reduced iron powder is added;

[0077] Comparative Example 4:

[0078] The only difference from Example 1 is that the weight parts of the components are different, as follows:

[0079] In this comparative example, the following components were weighed in parts by weight: 40 parts of reduced iron powder, 15 parts of activated carbon, and carbon fiber felt (thickness 2 mm, density 0.02 g / cm 3 ), 1 part, sodium polyacrylate 1.5 parts, sodium chloride 3.5 parts, traditional Chinese medicine extract (wormwood) 30 parts.

[0080] Comparative Example 5:

[0081] The only difference from Example 1 is that a non-woven fabric of the same thickness is used to replace the carbon fiber felt layer.

[0082] (II) Performance test

[0083] The heating time of medical heating patches is generally recommended to be about 30 minutes, and avoid exceeding 4 hours. Generally, one patch is only used once. As for the temperature uniformity of different positions of the heating patch, according to the YY0060-2018 "Hot Compress Patch (Bag)" standard, the maximum temperature of the hot compress patch that is in direct contact with human skin should not be greater than 60°C, with an error of ±5°C; the maximum temperature of the hot compress patch that is not in direct contact with human skin should not be greater than 70°C, with an error of ±5°C. This means that the temperature difference at different points should be controlled within the range of ±5°C. A person was selected to use the patches prepared by all the embodiments and comparative examples at room temperature, and the heating time of the patch during use, the tensile strength of the patch, the maximum temperature difference (temperature uniformity) of the effective part of the patch during use, and the maximum temperature during the entire use were tested.

[0084]

[0085]

[0086] The hot compress patch prepared in Example 1 can achieve a better hot compress effect. The carbon fiber felt ensures that the heating patch can dissipate heat evenly while maintaining the stability and durability of the structure. The addition of high molecular water-absorbing resin significantly prolongs the heating time, while the fusion of traditional Chinese medicine extracts provides patients with additional therapeutic effects, making it perform well in relieving pain and promoting blood circulation. Carbon fiber can emit 8um-15um far infrared rays when it is heated. This far-infrared light wave can resonate with the human body, helping to improve blood circulation, eliminate fatigue, and restore human function. Compared with ordinary materials, carbon fiber can provide a more uniform temperature distribution, which is very important for providing a comfortable heating experience.

[0087] Comparative Example 4 uses less carbon fiber felt, which is not enough to ensure that the heating patch can dissipate heat evenly while maintaining structural stability and durability. Similar to ordinary heating patches without carbon fiber, the heat dissipation temperature is not uniform, which can easily cause local overheating and damage the body. In addition, the overall stability and tear resistance are also deteriorated.

[0088] The present invention significantly improves heating uniformity and structural strength by introducing carbon fiber felt and high molecular water-absorbing resin; at the same time, it has good uniform heat dissipation effect and temperature control effect, and is suitable for auxiliary treatment of various pains and inflammations.

[0089] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A medical carbon fiber hot compress, characterized in that: It comprises a heating layer, which comprises a substrate layer and a drug coating coated on the substrate layer; the substrate layer adopts carbon fiber felt; the drug coating comprises iron powder, activated carbon, resin, catalyst and drug.

2. A medical carbon fiber hot compress according to claim 1, characterized in that: The resin includes one or more of sodium polyacrylate, polyacrylamide and carboxymethyl cellulose.

3. A medical carbon fiber hot compress according to claim 1, characterized in that: The medicine comprises one or more extracts of Artemisia annua, Cornus officinalis, Clerodendrum affine, Sophora flavescens, Gardenia jasminoides, Rhizoma Anemarrhenae, Fructus Forsythiae, Rabdosia rubescens and Rhizoma Tripterygii.

4. A medical carbon fiber hot compress according to claim 1, characterized in that: The catalyst is at least one or more of sodium chloride, potassium chloride and calcium chloride.

5. A medical carbon fiber hot compress according to claim 1, characterized in that: The preparation method of the carbon fiber felt is as follows: S1: Raw material preparation: blending the raw materials with the polymer fiber to form a composite fiber; wherein the weight ratio of the raw materials to the polymer fiber is 2-9:1; S2: Web forming: The mixed fibers are web-formed by air-laid web forming and carded web forming processes; then, the web is enhanced and shaped by a needle punching machine to obtain white felt; S3: Irradiation pre-oxidation: The formed white felt is placed in an irradiation chamber and irradiated by high-energy electron beam for rapid transmission pre-oxidation to remove non-carbon components and obtain pre-oxidized felt; wherein, the irradiation dose for pre-oxidation is usually 100-400 kGy and the time is 10 minutes; S4: High-temperature carbonization and graphitization: The pre-oxidized felt is placed in a high-temperature furnace for carbonization reaction at a temperature range of 500°C to 2600°C for 1-12 hours, and the vacuum degree is controlled to obtain carbon fiber soft felt; and then high-temperature chemical purification process technology is used to prepare high-purity carbon fiber soft felt.

6. A medical carbon fiber hot compress according to claim 5, characterized in that: The thickness of the carbon fiber felt is 0.5-5 mm; the density of the carbon fiber felt is 0.1-0.3 g / cm 3 , strength is 200-400 Mpa; In the step S1, the raw material is at least one or more of acrylonitrile-based white silk, viscose-based white silk or asphalt-based raw silk; and the polymer fiber is polypropylene fiber or nylon fiber.

7. A medical carbon fiber hot compress according to claim 1, characterized in that: By weight, it includes 35-50 parts of iron powder, 8-20 parts of activated carbon, 5-12 parts of carbon fiber felt, 0.1-5 parts of resin, 1-7 parts of catalyst and 25-38 parts of medicine.

8. The medical carbon fiber hot compress according to claim 1, characterized in that: By weight, it includes 38-42 parts of iron powder, 12-18 parts of activated carbon, 8-10 parts of carbon fiber felt, 1-3 parts of resin, 3-5 parts of catalyst and 30-35 parts of medicine.

9. A method for preparing a medical carbon fiber hot compress according to any one of claims 1 to 8, characterized in that: The preparation steps include: S1: adding the resin to the drug, and then adding activated carbon and stirring evenly to obtain a first mixture; S2: mixing the iron powder and the catalyst and stirring them uniformly to obtain a second mixture; S3: adding the second mixture to the first mixture, stirring evenly, and coating the mixture evenly on the carbon fiber felt layer using a coating process to obtain a heat-generating layer; S4: Put the heating layer into a non-woven bag, fix it with pressure-sensitive tape, and put it into a sealed bag for storage.

10. The method for preparing a medical carbon fiber hot compress according to claim 9, characterized in that: The heating layer has a thickness of 2-15 mm; the non-woven bag has a thickness of 0.4-4 mm.

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