Foot wound nursing medicine used after corn removal operation, preparation method and foot wound nursing patch

Abstract

The invention belongs to the technical field of medical protection articles, and particularly relates to a foot wound nursing medicine used after corn removal, a preparation method and a foot wound nursing paste.The foot wound nursing medicine is prepared from, by weight, 66.67-72.73% of vaseline and 27.27-33.33% of liquid paraffin, the average molecular weight of the vaseline is 226-450, the average molecular weight of the liquid paraffin is 226-450, and the average molecular weight of the liquid paraffin is 226-450. The average molecular weight of the liquid paraffin is 254-422. The foot wound nursing medicine provided by the invention can form a physical barrier to isolate a wound from the external environment, so that harmful substances such as bacteria and dust can be prevented from entering the wound, the risk of infection is reduced, direct friction between the wound and external clothes, gauze and the like can be avoided, and pain and secondary injury caused by friction are reduced. Besides, the foot wound nursing medicine formed after the interaction of the liquid paraffin and the vaseline can form a lipid membrane to contact the wound, and can provide a suitable wet healing environment for the wound and promote the wound healing after being smeared on the debrided wound.

Description

Technical Field

[0001] This invention belongs to the field of medical protective equipment technology, specifically relating to a foot wound care drug, manufacturing method, and foot wound care patch for use after corn removal surgery. Background Technology

[0002] Corns are localized, cone-shaped hyperkeratotic lesions of the skin, mostly occurring on the soles of the feet and between the toes, manifesting as a sharp, bumping pain during movement. The mechanism involves a keratin plug, its tip forming an inverted cone, embedding itself into the dermis. When the patient walks or stands, this tip compresses the nerve endings in the papillary layer of the dermis, causing severe pain. Over time, the depth of the keratin plug embedded in the dermis gradually increases, leading to greater pain. Therefore, complete removal of the lesion is crucial for improving the patient's quality of life.

[0003] There are many existing treatments for corns, such as corn plasters, topical medications, liquid nitrogen cryotherapy, CO2 laser treatment, and surgical excision. Corn plasters and topical medications soften and dissolve the keratin plug of the corn using chemical agents. Commonly used topical medications include liquefied phenol and 10%–15% salicylic acid ointment. However, due to the long treatment period, the risk of damaging the surrounding normal skin, leading to local pain, and low patient compliance, these methods are not commonly used clinically. Liquid nitrogen cryotherapy uses the low temperature of liquid nitrogen to denature, necrose, and slough off the tissue, but local reactions such as blisters, swelling, and pain may occur. Because surgeons often misjudge the depth of the corn, a single cryotherapy session is often incomplete, requiring multiple visits to the hospital for cryotherapy. Furthermore, over-freezing can easily damage surrounding tissues, so this method is also not commonly used clinically. Therefore, currently, CO2 laser treatment and surgical excision are the most common treatments for corns, but these methods often lead to postoperative problems such as infection and delayed healing.

[0004] Traditional postoperative care methods, such as gauze bandages and antibiotic ointments, have limitations such as poor breathability, easy slippage, and inability to create a stable moist environment. Therefore, there is an urgent need for a foot wound care medication that can form a physical barrier, provide a moist healing environment, and form a lipid membrane in contact with the wound. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this invention provides a foot wound care drug, a manufacturing method, and a foot wound care patch for use after corn removal surgery, thereby solving the aforementioned technical problems.

[0006] The first aspect of the present invention provides a foot wound care medicine for corn removal surgery, the contents of each component are as follows: petrolatum 66.67-72.73 wt.% and liquid paraffin 27.27-33.33 wt.%, wherein the average molecular weight of petrolatum is 226-450 and the average molecular weight of liquid paraffin is 254-422.

[0007] Preferably, petrolatum is composed of C9-C13 long-chain alkanes and cycloalkanes, and is a semi-solid mixture; liquid paraffin is composed of C20-C40 saturated alkanes, and is a liquid mixture.

[0008] The second aspect of the present invention provides a method for preparing a foot wound care drug after corn removal surgery. The method comprises: heating petrolatum and liquid paraffin to 80-85°C and stirring thoroughly for 40 minutes to dissolve them evenly until they are completely transparent and free of particles, and then cooling them to 45-50°C to obtain the foot wound care drug after corn removal surgery.

[0009] Preferably, the prepared drug does not contain components with pharmacological effects.

[0010] A third aspect of the present invention provides a foot wound care dressing for corn removal surgery, comprising a base fabric layer, a padding layer, an adhesive ring, a drug layer, release paper, and an elastic layer. The base fabric layer has a padding layer in its center, and the padding layer has a circular through-hole matching the adhesive ring in its center. The adhesive ring is disposed within the circular through-hole, and a groove is formed in the center of the adhesive ring. The drug layer is disposed within the groove and is filled with a drug prepared using a method for foot wound care after corn removal surgery. The release paper is adhered to both ends of the base fabric layer, and the elastic layer is disposed at both ends of the padding layer. Tear-off portions are symmetrically arranged at both ends of the base fabric layer, extending along the length of the base fabric layer. The elastic layer consists of two elastic blocks of the same volume symmetrically distributed along the tear-off portions.

[0011] Preferably, the base fabric layer is H-shaped, and the release paper is peelably bonded to both ends of the base fabric layer; the groove in the middle of the rubber ring is circular, and the padding layer, rubber ring, and drug layer are flush in height.

[0012] Preferably, the base fabric layer is made of non-woven fabric, with hot melt adhesive coated at both ends, and release paper is bonded to the hot melt adhesive; the padding layer is made of pure cotton fabric, the elastic layer is made of a material with compression properties, and the rubber ring is made of medical polyurethane hydrogel.

[0013] Preferably, the elastic layer is made of cotton, sponge, medical foam dressing, polyurethane foam or memory foam.

[0014] Preferably, the height of the end of the elastic layer near the padding layer is flush with that of the padding layer, and the end of the elastic layer away from the padding layer is arc-shaped; the surface of the elastic layer is provided with several dot-shaped protrusions.

[0015] Preferably, the drug prepared by the method for preparing foot wound care medication after corn removal is filled into a drug layer and then sterilized by Co-60 irradiation.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The foot wound care medicine provided by the present invention can form a physical barrier to isolate the wound from the external environment. It can not only prevent harmful substances such as bacteria and dust from entering the wound and reduce the risk of infection, but also avoid direct friction between the wound and external clothing, gauze and other materials, reducing pain and secondary damage caused by friction.

[0017] 2. The foot wound care medicine formed by the interaction of liquid paraffin and petrolatum provided by the present invention can form a lipid film that contacts the wound. When applied to the wound after cleaning, it can provide a suitable moist healing environment for the wound and promote wound healing.

[0018] 3. The foot wound care patch provided by the present invention can effectively care for the wound after corn removal surgery and provide a microenvironment for wound healing.

[0019] 4. The present invention forms a nursing layer by assembling two elastic blocks of the same volume that are symmetrically distributed along the tear section, and one end of the elastic block is also designed in an arc shape, so that the nursing patch can better adapt to the bending and stretching of the foot during the activity process, enhance the fit between the nursing patch and the foot, and will not loosen or shift due to foot activity, thereby further improving the nursing effect.

[0020] 5. By setting a tear-off part, the present invention can meet the wound care needs of the sole of the foot before tearing and meet the wound care needs of the toes after tearing, thus achieving the purpose of simultaneously meeting the wound care needs of different parts such as the sole and toes. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A top view of a foot wound care dressing for corn removal surgery provided by the present invention; Figure 2 This is a top view of the base fabric layer provided by the present invention; Figure 3 This is a front view of a foot wound care patch for corn removal surgery provided by the present invention. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The first aspect of this invention provides a foot wound care medicine for corn removal surgery, the contents of each component are as follows: petrolatum 66.67-72.73 wt.% and liquid paraffin 27.27-33.33 wt.%, wherein the average molecular weight of petrolatum is 226-450 and the average molecular weight of liquid paraffin is 254-422.

[0026] It should be noted that petrolatum has an average molecular weight of 226-450, which can isolate external microorganisms, keep the wound moist, and shorten the wound healing time; liquid paraffin has an average molecular weight of 254-422, is an odorless and colorless mineral oil, has good sealing properties, can reduce local skin friction, and can form a protective film on the skin to prevent skin maceration and dryness, thus strengthening the epidermal barrier function.

[0027] The foot wound care medication provided in this application forms a physical barrier, isolating the wound from the external environment. This not only prevents harmful substances such as bacteria and dust from entering the wound, reducing the risk of infection, but also avoids direct friction between the wound and external clothing, gauze, etc., reducing pain and secondary injury caused by friction. Furthermore, petroleum jelly is an inert, non-absorbable oily substance. The foot wound care medication formed by the interaction of liquid paraffin and petroleum jelly can form a lipid film that contacts the wound. Applying it to a cleaned wound provides a suitable moist healing environment, promoting wound healing.

[0028] Preferably, petrolatum is composed of C9-C13 long-chain alkanes and cycloalkanes, and is a semi-solid mixture; liquid paraffin is composed of C20-C40 saturated alkanes, and is a liquid mixture.

[0029] It should be noted that petrolatum, composed of C9-C13 long-chain alkanes and cycloalkanes, has extremely strong water-locking properties and can be used for repairing dry cracks and protecting wounds. Liquid paraffin, composed of C20-C40 saturated alkanes, is a transparent, colorless, oily liquid that is not easily volatile and has strong hydrophobicity.

[0030] The second aspect of the present invention provides a method for preparing a foot wound care drug for corn removal surgery, comprising: heating petrolatum and liquid paraffin to 80-85°C and stirring thoroughly for 40 minutes to dissolve them evenly until they are completely transparent and free of particles, and then cooling them to 45-50°C to obtain a foot wound care drug for corn removal surgery.

[0031] Preferably, the medicine prepared according to a method for preparing a foot wound care medicine for corn removal surgery does not contain components with pharmacological effects.

[0032] It should be noted that "excluding components with pharmacological effects" means that the ingredients in the product should not produce the intended effect through pharmacological, immunological, or metabolic actions. The core principle is to exclude components that can directly affect the body's physiological functions or biochemical processes, allowing only physical methods to achieve the desired function. Therefore, the medication prepared in this application, when applied to the wound after corn removal surgery on the foot, can form a physical barrier, isolating the wound from the external environment, preventing bacteria, dust, and harmful substances from entering the wound, and reducing the risk of infection.

[0033] like Figure 1-3As shown, a third aspect of the present invention provides a foot wound care patch for corn removal surgery, comprising a base fabric layer 1, a padding layer 2, an adhesive ring 3, a drug layer 4, release paper 5, and an elastic layer 6. The base fabric layer 1 has a padding layer 2 in its middle, and the padding layer 2 has a circular through-hole matching the adhesive ring 3 in its middle. The adhesive ring 3 is disposed within the circular through-hole, and a groove is formed in the middle of the adhesive ring 3. The drug layer 4 is disposed within the groove and is filled with a drug prepared according to a method for manufacturing a foot wound care drug for corn removal surgery. The release paper 5 is adhered to both ends of the base fabric layer 1, and the elastic layer 6 is disposed at both ends of the padding layer 2. Tear-opening portions 7 are symmetrically arranged at both ends of the base fabric layer 1, and the tear-opening portions 7 are arranged along the length direction of the base fabric layer 1. The elastic layer 6 is composed of two elastic blocks 61 of the same volume symmetrically distributed along the tear-opening portions 7.

[0034] Preferably, the base fabric layer 1 is H-shaped.

[0035] In this invention, during the tearing process of the tearing portion 7 on the base fabric layer 1, the elastic layer 6 disposed on the base fabric layer 1 also separates along with the tearing portion 7, thereby causing the base fabric layer 1 to deform from an H-shape to an X-shape. When the base fabric layer 1 is H-shaped, it can be used for wound care after corn removal surgery on the sole of the foot; when the base fabric layer 1 is X-shaped, it can be used for wound care after corn removal surgery on the toes.

[0036] Preferably, the base fabric layer 1 is made of non-woven fabric, with hot melt adhesive coated at both ends of the non-woven fabric, and release paper 5 is bonded to the hot melt adhesive; the padding layer 2 is made of pure cotton fabric.

[0037] Preferably, the height of the end of the elastic layer 6 near the padding layer 2 is flush with that of the padding layer 2, and the end of the elastic layer 6 away from the padding layer 2 is arc-shaped.

[0038] Preferably, the surface of the elastic layer 6 is provided with a number of dot-shaped protrusions.

[0039] In this invention, the elastic layer 6 is made of soft materials with compressibility, such as cotton, sponge, medical foam dressing, polyurethane foam or memory foam.

[0040] Preferably, the rubber ring 3 is made of medical polyurethane hydrogel, and the groove in the middle of the rubber ring 3 is circular.

[0041] In addition, the rubber ring 3 can also be made of sponge.

[0042] Preferably, the padding layer 2, the rubber ring 3, and the drug layer 4 are at the same height.

[0043] Preferably, the release paper 5 is peelably bonded to both ends of the base fabric layer 1.

[0044] Preferably, the drug prepared by the method for preparing foot wound care medication after corn removal is filled into a drug layer and then sterilized by Co-60 irradiation.

[0045] The principle of this invention is as follows: When using it, peel off the release paper 5, align the medicine layer 4 with the corn wound, then peel off the release paper 5 and fix it through the base fabric layer 1.

[0046] Based on the aforementioned foot wound care drug and drug preparation method for corn removal surgery, the present invention also conducted the following multiple sets of experiments.

[0047] Example 1

[0048] A foot wound care drug for corn removal surgery, comprising the following components: petrolatum 66.67 wt.% and liquid paraffin 33.33 wt.%, wherein the average molecular weight of petrolatum is 226 and the average molecular weight of liquid paraffin is 338. The preparation method of the drug includes: heating petrolatum and liquid paraffin to 80°C and stirring thoroughly for 40 minutes to dissolve them evenly until completely transparent and free of particles, and then cooling to 50°C to obtain the foot wound care drug for corn removal surgery.

[0049] Example 2

[0050] A foot wound care drug for corn removal surgery, comprising the following components: petrolatum 72.73 wt.% and liquid paraffin 27.27 wt.%, wherein the average molecular weight of petrolatum is 338 and the average molecular weight of liquid paraffin is 422. The preparation method of the drug includes: heating petrolatum and liquid paraffin to 82°C and stirring thoroughly for 40 minutes to dissolve them evenly until completely transparent and free of particles, and then cooling to 48°C to obtain the foot wound care drug for corn removal surgery.

[0051] Example 3

[0052] A foot wound care drug for corn removal surgery, comprising the following components: petrolatum 69.70 wt.% and liquid paraffin 30.30 wt.%, wherein the average molecular weight of petrolatum is 450 and the average molecular weight of liquid paraffin is 254. The preparation method of the drug includes: heating petrolatum and liquid paraffin to 85°C and stirring thoroughly for 40 minutes to dissolve them evenly until completely transparent and free of particles, and then cooling to 45°C to obtain the foot wound care drug for corn removal surgery.

[0053] This study selected 25 patients with corns admitted to a hospital between March and June 2023, aged 28 to 50 years. Fifteen of these patients were treated by the same medical team at our hospital according to CO... ２ The corn was removed using a standard laser procedure. All 10 patients underwent corn removal by the same medical team at our hospital following the standard surgical procedure. During the operation, the corn tissue was completely removed, and hemostasis was properly achieved to ensure no residue remained.

[0054] Immediately after the operation, all patients were wrapped and cared for with the medicated dressing gauze prepared according to Example 1. The specific operation steps were as follows: first, rinse the wound with sterile saline to remove residual tissue and blood clots. After the wound was allowed to dry naturally, the medicated dressing gauze prepared according to Example 1 was flatly covered on the wound. Then, ordinary sterile gauze was applied with appropriate pressure and bandaged. The dressing was changed every 4 hours until the wound was completely healed.

[0055] Wound healing status: Of the 25 patients, 20 were cured, 4 improved, and 1 did not heal, with a total effective rate of 96%.

[0056] Infection status: During the observation period, only one patient developed mild local redness and swelling, which improved after treatment such as enhanced dressing changes. No infection occurred in the remaining patients.

[0057] This experiment involved a clinical observation of 25 patients who underwent corn removal surgery and were wrapped in gauze with the medicated dressing prepared in Example 1. The results showed that the drug had good effects in promoting wound healing and preventing infection, and is worthy of further promotion and application in clinical practice.

[0058] In summary, the foot wound care medication and foot wound care patch provided by this invention can form a physical barrier, isolating the wound from the external environment. This not only prevents harmful substances such as bacteria and dust from entering the wound, reducing the risk of infection, but also avoids direct friction between the wound and external clothing, gauze, etc., reducing pain and secondary injury caused by friction. Furthermore, the foot wound care medication formed by the interaction of liquid paraffin and petroleum jelly can form a lipid film that contacts the wound. Applying it to the cleaned wound provides a suitable moist healing environment, promoting wound healing.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A medication for foot wound care after corn removal surgery, characterized in that, The contents of each component are as follows: petrolatum 66.67-72.73 wt.% and liquid paraffin 27.27-33.33 wt.%, of which the average molecular weight of petrolatum is 226-450 and the average molecular weight of liquid paraffin is 254-422.

2. The foot wound care medication according to claim 1, characterized in that, Vaseline is a semi-solid mixture composed of C9-C13 long-chain alkanes and cycloalkanes; liquid paraffin is a liquid mixture composed of C20-C40 saturated alkanes.

3. A method for preparing a foot wound care medication after corn removal surgery, comprising the foot wound care medication according to any one of claims 1-2, characterized in that, include: Vaseline and liquid paraffin are heated to 80-85℃ and stirred thoroughly for 40 minutes until they are completely dissolved and transparent without particles. Then the temperature is lowered to 45-50℃ to obtain a foot wound care medication for corn removal surgery.

4. The method for preparing a foot wound care medication according to claim 3, characterized in that, The manufactured drug does not contain components with pharmacological effects.

5. A foot wound care dressing for use after corn removal surgery, characterized in that, It includes a base fabric layer, a padding layer, an adhesive ring, a drug layer, release paper, and an elastic layer. The base fabric layer has a padding layer in the middle, and the padding layer has a circular through-hole in the middle that matches the adhesive ring. The adhesive ring is placed in the circular through-hole, and a groove is opened in the middle of the adhesive ring. The drug layer is placed in the groove and is filled with a drug prepared according to the method for foot wound care after corn removal surgery. The release paper is bonded to both ends of the base fabric layer, and the elastic layer is placed at both ends of the padding layer. The two ends of the base fabric layer are symmetrically provided with tear-off parts, which are arranged along the length of the base fabric layer. The elastic layer is composed of two elastic blocks of the same volume that are symmetrically distributed along the tear-off parts.

6. A foot wound care dressing according to claim 5, characterized in that, The base fabric layer is H-shaped, and the release paper is peelably bonded to both ends of the base fabric layer; the groove in the middle of the rubber ring is circular, and the padding layer, rubber ring, and drug layer are at the same height.

7. A foot wound care dressing according to claim 5, characterized in that, The base fabric layer is made of non-woven fabric, with hot melt adhesive coated at both ends, and release paper is bonded to the hot melt adhesive; the padding layer is made of pure cotton fabric, the elastic layer is made of a material with compression properties, and the rubber ring is made of medical polyurethane hydrogel.

8. A foot wound care dressing according to claim 7, characterized in that, The elastic layer is made of cotton, sponge, medical foam dressing, polyurethane foam, or memory foam.

9. A foot wound care dressing according to claim 5, characterized in that, The end of the elastic layer closest to the padding layer is flush with the padding layer, while the end of the elastic layer furthest from the padding layer is arc-shaped; the surface of the elastic layer has several dot-like protrusions.

10. A foot wound care dressing according to claim 5, characterized in that, The drug prepared according to the method of foot wound care after corn removal surgery is filled into a drug layer and then sterilized by Co-60 irradiation.

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