Saffron crocus eye pad and method for controlling growth of eye axis

Abstract

The invention relates to a saffron crocus eye pad and a method for controlling eye axis growth, and belongs to the technical field of eye care products. The eye patch comprises a patch carrier and a plant extraction gel layer coated on the patch carrier, the plant extract gel layer is composed of mulberry leaf extract, chrysanthemum extract, butterflybush flower extract, amur corktree extract, crocus sativus flower extract, lithospermum extract, madder extract, lycium ruthenicum extract, beet root juice powder, natural borneol, menthol, xanthan gum, purified water and other natural components. The crocus sativus flower extract can enhance the blood flow speed of choroid, thicken the choroid and effectively control the growth of an ocular axis, so that the effect of delaying or improving the development of myopia is achieved. According to the gel layer, a hydrogel structure is formed through xanthan gum, natural borneol and menthol are combined to provide cooling and soothing effects, and the gel layer has good skin affinity and use safety.

Description

Technical Field

[0001] This invention relates to the field of eye care product technology, specifically to a saffron eye patch and a method for controlling axial elongation. Background Technology

[0002] With the widespread use of electronic products and the increased frequency of close-range eye use, eye health problems such as eye strain, dry eyes, reduced choroidal blood flow, and abnormal axial elongation are becoming increasingly prominent among adolescents and adults, and have become important factors affecting visual health. Controlling axial elongation and relieving eye fatigue have become important research directions in current eye care.

[0003] Most eye patch products currently on the market primarily relieve dryness and reduce puffiness, often using synthetic ingredients or single plant extracts. They lack a systematic approach to regulating visual physiological mechanisms such as choroidal blood flow and axial elongation. They only provide short-term comfort and lack deep conditioning effects, failing to effectively improve microcirculation after visual fatigue. Furthermore, some eye patches, due to their complex or highly irritating ingredients, can easily cause allergic reactions around the eyes, making them particularly unsuitable for children and those with sensitive skin.

[0004] Therefore, there is an urgent need for a gentle eye patch product with pure plant ingredients that can enhance choroidal blood flow, thicken the choroid, and slow down the growth of the axial length of the eye. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a saffron eye patch and a method for controlling axial elongation of the eye. This patch effectively regulates the microcirculation system of the eye, while also possessing good skin affinity and safety, fundamentally improving the sub-healthy state of the eyes and meeting the needs for long-term use and prevention of myopia progression.

[0006] This invention is achieved through the following technical solution: a saffron eye patch, comprising a patch carrier and a plant extract gel layer coated on the patch carrier, wherein the plant extract gel layer comprises the following components: Mulberry leaf extract, chrysanthemum extract, buddleja flower extract, phellodendron bark extract, saffron flower extract, lithospermum extract, madder root extract, black goji berry extract, beetroot juice powder, natural borneol, menthol, xanthan gum, and purified water, wherein the saffron flower extract is used to enhance blood flow velocity in the choroid, thicken the choroid, and control axial elongation.

[0007] As a preferred technical solution, the content of the saffron flower extract is 7.5mg to 22.5mg per eye patch.

[0008] As a preferred technical solution, the patch carrier is a skin-friendly non-woven fabric substrate, which has good breathability and fit, and is suitable for the skin around the eyes.

[0009] As a preferred technical solution, the plant extract gel layer is prepared by using xanthan gum as a gelling film-forming agent and is in a viscous hydrogel state.

[0010] As a preferred technical solution, the natural borneol and menthol provide a cooling sensation in a synergistic manner.

[0011] As a preferred technical solution, the black goji berry extract and beetroot juice powder are rich in natural anthocyanins and polyphenols, which are used to protect retinal cells with antioxidant properties and delay the aging of eye tissues.

[0012] As a preferred technical solution, the mulberry leaf extract, buddleja extract and chrysanthemum extract are used in combination to reduce intraocular pressure, relieve ciliary muscle tension and eye symptoms caused by eye fatigue.

[0013] As a preferred technical solution, the plant extract gel layer is a single-use hydrogel with room temperature storage stability. When using it, it can be directly applied to the eyelids or the area around the eyes for 10-15 minutes.

[0014] As a preferred technical solution, the method for preparing the plant extract gel layer includes the following steps: The plant extract powders were added to purified water in proportion and stirred to dissolve. Then xanthan gum was added as a thickener and mixed evenly to form a homogeneous colloidal system. Natural borneol and menthol were then added and stirred continuously to allow the gel layer to fully fuse under low temperature conditions to form the finished product. Finally, the gel was evenly coated on the surface of the patch carrier and dried to set.

[0015] The present invention discloses a method for controlling axial elongation by applying an eye patch to the user's eye area 1 to 2 times a day for 10-15 minutes each time, for at least 4 weeks. The plant extracts contained therein, such as saffron flower extract, act on the eye tissue to enhance choroidal blood flow, thicken the choroid, and slow down the rate of axial elongation.

[0016] The beneficial effects of this invention are: the saffron eye patch provided by this invention is made from a variety of natural plant extracts, and the formula is mild and safe, avoiding the chemical irritation problems that may exist in traditional eye patches, and is especially suitable for long-term wear and for people with sensitive eye skin.

[0017] The saffron flower extract in this invention is the core functional ingredient, which can effectively increase choroidal blood flow velocity and promote choroidal thickening. This improves ocular microcirculation while effectively inhibiting abnormal elongation of the axial length, thus playing a positive role in preventing myopia progression. Combined with ingredients such as mulberry leaf, buddleja officinalis, and chrysanthemum, it can synergistically lower intraocular pressure, relieve ciliary muscle tension, and alleviate eye fatigue.

[0018] This invention uses xanthan gum to form a plant gel matrix, combined with natural borneol and menthol to form a hydrogel layer. During use, it can continuously release effective ingredients and provide a moderate cooling effect, further enhancing the soothing and calming effect on the eyes.

[0019] Compared with existing eye patch products, this invention has a reasonable structural design, a simple manufacturing process, and is suitable for standardized and large-scale production. It also boasts high product stability and ease of use. Through short daily applications, it can regulate eye health and protect the visual system for teenagers and those who use their eyes extensively, demonstrating promising prospects for market promotion and clinical application. Attached Figure Description

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0022] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0023] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0024] like Figure 1 As shown in the figure, this embodiment of the invention provides a saffron eye patch, which is suitable for improving eye fatigue, regulating eye microcirculation and controlling axial elongation. Its specific structure and preparation method are described below.

[0025] The eye patch comprises a patch carrier 1 and a plant-extracted gel layer 2 covering the surface of the patch carrier. The patch carrier uses a skin-friendly non-woven fabric as its base. This material has good breathability and softness, making it suitable for prolonged application to sensitive areas such as the eyelids and perianal area, ensuring effective adhesion of the gel layer and stable release of the active ingredients. The non-woven fabric is a medical-grade material with a thickness of approximately 0.3 mm and a basis weight of 25 g / m² to 50 g / m², exhibiting excellent skin compatibility and mechanical strength. This ensures comfort during application and prevents deformation caused by gel infiltration.

[0026] The core of the plant-extract gel layer is a functional complex system composed of various natural plant extracts, which are added according to the formula and fully integrated with the gel matrix. Its specific components include: mulberry leaf extract, chrysanthemum extract, buddleja officinalis extract, phellodendron bark extract, saffron flower extract, lithospermum erythrorhizon extract, madder root extract, black goji berry extract, beetroot juice powder, natural borneol, menthol, xanthan gum, and purified water.

[0027] Saffron flower extract is the key functional ingredient of this invention. Derived from the stigma of saffron, it is obtained as a water-soluble powder through low-temperature ethanol extraction, followed by vacuum concentration and spray drying. It possesses physiological activities such as vasodilation, increased choroidal blood flow, and improved local microcirculation. Animal experiments have shown that saffron extract can significantly increase the perfusion rate of the choroidal layer of the eye, and has a significant alleviating effect on retinal hypoperfusion caused by near-vision activities. In this invention, the dosage of saffron flower extract is between 7.5 mg and 22.5 mg per eye patch, preferably between 10 mg and 18 mg. In vitro release experiments ensure that more than 60% of the total amount is released within 10 minutes of application.

[0028] It is supplemented with black goji berry extract and beetroot juice powder, two antioxidants rich in natural anthocyanins and polyphenols, which can form an antioxidant free radical barrier on the surface of the eye, relieve retinal stress response caused by ultraviolet rays, blue light from electronic screens, etc., and have the effect of delaying cell aging and protecting neurons.

[0029] The black goji berry extract is extracted with 60℃ warm water and then freeze-dried, while the beetroot juice powder is obtained by vacuum concentration and low-temperature spray drying after juicing fresh beetroot, thus preserving its natural pigments and nutrients.

[0030] Mulberry leaf, Buddleja officinalis, and chrysanthemum extracts together constitute the second functional complex system for regulating intraocular pressure and relaxing the ciliary muscle in this invention. All three are traditional Chinese medicine herbs that "clear the liver and improve eyesight," and they relieve eye pressure and reduce soreness by alleviating ciliary muscle tension and promoting aqueous humor circulation.

[0031] Among them, mulberry leaf extract is rich in rutin and ursolic acid active substances, buddleja officinalis extract is rich in flavonoids and volatile oils, and chrysanthemum extract has anti-inflammatory and sedative effects. The ratio of the three ingredients is controlled at 1:1:1 or adjusted appropriately according to the user's degree of eye fatigue, which can significantly improve the user's subjective comfort.

[0032] To enhance the soothing experience when using the eye patch, natural borneol and menthol are added to the plant-extract gel layer. Both are volatile cooling ingredients that can quickly activate the cold-sensing nerve endings in the eyes, creating a mild cooling sensation, thereby relieving eye swelling and pain, stimulating tear secretion, and enhancing blood exchange.

[0033] During production, natural borneol and menthol can be dissolved in a small amount of ethanol and then evenly dispersed in the gel system. The total amount added is controlled at 0.2%~0.5%, which can provide a cooling sensation without causing skin irritation.

[0034] To form a stable hydrogel structure and ensure slow release of components, xanthan gum is used as the film-forming and thickening material in the plant-extracted gel layer. Xanthan gum is a high-molecular-weight polysaccharide natural colloid with good biocompatibility and thickening properties. In this invention, the amount of xanthan gum added is 1.0%~1.5%, which can form a transparent viscoelastic system in purified water and maintain good coating stability and film-forming performance.

[0035] The preparation method of the plant extract gel layer is as follows: First, add the powder of each extract component to the set amount of purified water according to the functional ratio, and stir with a high-speed stirrer for 20 minutes at room temperature until fully dissolved; Then slowly add xanthan gum and continue stirring until a homogeneous colloidal system is formed; Then add the dissolved natural borneol and menthol separately, stir well, and let stand at 4°C for 2 hours to enhance the stability of the gel structure; The resulting gel is evenly coated onto a pre-made patch carrier using a quantitative filling device and then sent to a low-temperature dryer for shaping, ultimately yielding an eye patch product with uniform thickness and soft texture.

[0036] Instructions for use: Apply the eye patch directly to the eyelids or the area around the eyes after removing it from the packaging, morning and evening, or as needed depending on the intensity of eye use, for 10 to 15 minutes each time. Remove and discard the patch after use; it cannot be reused.

[0037] After four weeks of continuous use, noticeable changes can be observed, such as reduced eye fatigue, less visual fluctuation, increased choroid thickness, and slower axial elongation. It is suitable for myopia prevention and control in teenagers and eye care for people who use their eyes for long periods of time.

[0038] For example, in a trial involving 20 high school students, the subjects applied the eye patch of this invention for 15 minutes every night before bed. After 30 consecutive days of use, optical coherence tomography (OCT) of the fundus revealed that the average thickness of the choroid increased by 18.6 μm, and the rate of axial length growth decreased by approximately 32% compared to the control group. The subjects reported significant improvement in subjective discomfort such as eye strain and dryness, and no skin irritation or allergic reactions occurred throughout the entire use process.

[0039] The saffron eye patch of this invention uses multiple groups of natural plant extracts to synergistically regulate eye function as its core, supplemented by a hydrogel controlled-release structure and a comfortable physical carrier design. It has the advantages of being easy to operate, safe to use, effective, and widely applicable. It is especially suitable for multiple scenarios such as early myopia intervention, eye fatigue relief, and daily eye care, and has good promotion prospects and market value.

[0040] The saffron eye patch provided by this invention is made from a variety of natural plant extracts. The formula is mild and safe, avoiding the chemical irritation problems that may exist in traditional eye patches. It is especially suitable for long-term wear and for people with sensitive skin around the eyes.

[0041] The saffron flower extract in this invention is the core functional ingredient, which can effectively increase choroidal blood flow velocity and promote choroidal thickening. This improves ocular microcirculation while effectively inhibiting abnormal elongation of the axial length, thus playing a positive role in preventing myopia progression. Combined with ingredients such as mulberry leaf, buddleja officinalis, and chrysanthemum, it can synergistically lower intraocular pressure, relieve ciliary muscle tension, and alleviate eye fatigue.

[0042] This invention uses xanthan gum to form a plant gel matrix, combined with natural borneol and menthol to form a hydrogel layer. During use, it can continuously release effective ingredients and provide a moderate cooling effect, further enhancing the soothing and calming effect on the eyes.

[0043] Compared with existing eye patch products, this invention has a reasonable structural design, a simple manufacturing process, and is suitable for standardized and large-scale production. It also boasts high product stability and ease of use. Through short daily applications, it can regulate eye health and protect the visual system for teenagers and those who use their eyes extensively, demonstrating promising prospects for market promotion and clinical application.

[0044] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A saffron eye patch, characterized in that, The patch includes a carrier and a plant extract gel layer coated on the patch carrier, wherein the plant extract gel layer comprises the following components: Mulberry leaf extract, chrysanthemum extract, buddleja flower extract, phellodendron bark extract, saffron flower extract, lithospermum extract, madder root extract, black goji berry extract, beetroot juice powder, natural borneol, menthol, xanthan gum, and purified water, wherein the saffron flower extract is used to enhance blood flow velocity in the choroid, thicken the choroid, and control axial elongation.

2. The saffron eye patch according to claim 1, characterized in that: The content of the saffron flower extract is 7.5 mg to 22.5 mg per eye patch.

3. The saffron eye patch according to claim 1, characterized in that: The patch carrier is a skin-friendly non-woven fabric substrate with good breathability and fit, making it suitable for the skin around the eyes.

4. The saffron eye patch according to claim 1, characterized in that: The plant-extracted gel layer is prepared using xanthan gum as a gelling agent and is in a viscous hydrogel state.

5. The saffron eye patch according to claim 1, characterized in that: The natural borneol and menthol work synergistically to provide a cooling sensation.

6. The saffron eye patch according to claim 1, characterized in that: The black goji berry extract and beetroot juice powder are rich in natural anthocyanins and polyphenols, which are used to protect retinal cells with antioxidant properties and delay the aging of eye tissues.

7. The saffron eye patch according to claim 1, characterized in that: The mulberry leaf extract, buddleja flower extract, and chrysanthemum extract are used in combination to reduce intraocular pressure, relieve ciliary muscle tension, and alleviate eye symptoms caused by eye fatigue.

8. The saffron eye patch according to claim 1, characterized in that: The plant extract gel layer is a single-use hydrogel with room temperature storage stability. When using it, it can be directly applied to the eyelids or the area around the eyes for 10-15 minutes.

9. The saffron eye patch according to claim 1, characterized in that: The method for preparing the plant extract gel layer includes the following steps: The plant extract powders were added to purified water in proportion and stirred to dissolve. Then xanthan gum was added as a thickener and mixed evenly to form a homogeneous colloidal system. Natural borneol and menthol were then added and stirred continuously to allow the gel layer to fully fuse under low temperature conditions to form the finished product. Finally, the gel was evenly coated on the surface of the patch carrier and dried to set.

10. A method for controlling axial length growth, characterized in that, The eye patch as described in any one of claims 1 to 9 is applied to the user's eye area 1 to 2 times a day for 10 to 15 minutes each time, for at least 4 weeks. The plant extracts contained therein, such as saffron flower extract, act on the eye tissue, thereby enhancing choroidal blood flow, thickening the choroid, and slowing down the growth rate of the axial length of the eye.

Images