CN111557964A - Foot washing powder and application thereof in inhibiting beriberi, tinea pedis and foot odor - Google Patents

Foot washing powder and application thereof in inhibiting beriberi, tinea pedis and foot odor Download PDF

Info

Publication number
CN111557964A
CN111557964A CN202010612036.0A CN202010612036A CN111557964A CN 111557964 A CN111557964 A CN 111557964A CN 202010612036 A CN202010612036 A CN 202010612036A CN 111557964 A CN111557964 A CN 111557964A
Authority
CN
China
Prior art keywords
parts
foot
powder
washing powder
beriberi
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010612036.0A
Other languages
Chinese (zh)
Inventor
熊奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010612036.0A priority Critical patent/CN111557964A/en
Publication of CN111557964A publication Critical patent/CN111557964A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/60—Salicylic acid; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/045—Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
    • A61K31/19—Carboxylic acids, e.g. valproic acid
    • A61K31/192—Carboxylic acids, e.g. valproic acid having aromatic groups, e.g. sulindac, 2-aryl-propionic acids, ethacrynic acid 
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K33/00—Medicinal preparations containing inorganic active ingredients
    • A61K33/04—Sulfur, selenium or tellurium; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K33/00—Medicinal preparations containing inorganic active ingredients
    • A61K33/22—Boron compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18—Magnoliophyta (angiosperms)
    • A61K36/185—Magnoliopsida (dicotyledons)
    • A61K36/48—Fabaceae or Leguminosae (Pea or Legume family); Caesalpiniaceae; Mimosaceae; Papilionaceae
    • A61K36/484—Glycyrrhiza (licorice)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0002—Galenical forms characterised by the drug release technique; Application systems commanded by energy
    • A61K9/0004—Osmotic delivery systems; Sustained release driven by osmosis, thermal energy or gas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0014—Skin, i.e. galenical aspects of topical compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00—Drugs for dermatological disorders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04—Antibacterial agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/10—Antimycotics

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Oncology (AREA)
  • Communicable Diseases (AREA)
  • Inorganic Chemistry (AREA)
  • Dermatology (AREA)
  • Mycology (AREA)
  • Alternative & Traditional Medicine (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Medical Informatics (AREA)
  • Botany (AREA)
  • Cosmetics (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

The invention discloses a foot washing powder and an application thereof in inhibiting beriberi, tinea pedis and foot odor, wherein the foot washing powder comprises the following components in parts by weight: 8-12 parts of salicylic acid, 6-9 parts of boric acid, 6-9 parts of benzoic acid, 1-3 parts of sulfur powder, 1-3 parts of licorice powder and 1-3 parts of borneol powder; in the application of inhibiting beriberi, tinea pedis and foot odor, a user adds hot water into a foot basin, mixes and uniformly stirs all components of the foot washing powder, then adds the mixture into the foot basin, and naturally dries the mixture after the affected foot is soaked in the foot basin for 20-30 min. The traditional Chinese medicine and the western medicine are used complementarily, and the medicines have combined action to achieve internal and external treatment, clear heat and dry dampness, detoxify and relieve itching.

Description

Foot washing powder and application thereof in inhibiting beriberi, tinea pedis and foot odor
Technical Field
The invention relates to the field of treatment of fungal infection diseases of feet, and in particular relates to a foot washing powder and application thereof in inhibiting beriberi, foot rot and foot odor.
Background
The beriberi and the foot rot are foot skin inflammation and itching caused by fungal infection, blisters can appear, and the symptoms become more serious along with the increase of time. The foot odor is caused by that under the condition of hyperhidrosis, bacteria on the feet multiply and decompose keratin, and urea and lactic acid in sweat are added, so that an odor is generated. If the shoes are not breathable and the air is not circulated, the more concentrated the odor is, and the odor is extremely strong. Antifungal medicines are mostly used for external coating or oral treatment of beriberi, but the antifungal medicines have large side effects, the treatment of beriberi is a long-term process, the long-term use of the antifungal medicines can cause side effects such as liver function damage and the like, and meanwhile, the compliance of a patient using the medicines is also influenced, so that the treatment is easy to interrupt, and the treatment effect of beriberi is finally influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a traditional Chinese medicine and western medicine complementary use, and the foot washing powder which has the combined action of the medicines and achieves the effects of internal and external treatment, heat clearing and dampness eliminating, detoxification and itching relieving, and the application thereof in inhibiting beriberi, foot rot and foot odor.
The invention adopts two technical schemes for solving the technical problems:
on one hand, the foot washing powder is disclosed, and comprises the following components in parts by weight: 8-12 parts of salicylic acid, 6-9 parts of boric acid, 6-9 parts of benzoic acid, 1-3 parts of sulfur powder, 1-3 parts of licorice powder and 1-3 parts of borneol powder.
Further, the components are preferably as follows by weight: 8 parts of salicylic acid, 6 parts of boric acid, 6 parts of benzoic acid, 1 part of sulfur powder, 2 parts of licorice powder and 2 parts of borneol powder.
Further, the components are preferably as follows by weight: 10 parts of salicylic acid, 8 parts of boric acid, 8 parts of benzoic acid, 2 parts of sulfur powder, 2 parts of licorice powder and 1 part of borneol powder.
Further, the components are preferably as follows by weight: 12 parts of salicylic acid, 9 parts of boric acid, 9 parts of benzoic acid, 2 parts of sulfur powder, 2 parts of licorice powder and 1 part of borneol powder.
The pharmacological and medicinal properties of the components are as follows:
salicylic acid: a fat-soluble organic acid, white crystalline powder, exists in willow bark, beautyberry leaf and Betula platyphylla in nature, and is an important fine chemical raw material. Can permeate hair follicle, effectively dry suppurative part of face blister, and has effects of removing sweat odor, relieving itching and swelling, relieving pain and diminishing inflammation, etc. besides antiseptic and antibacterial effects.
Boric acid: chemical formula H3BO3White powdery crystals or triclinic scaly crystals, smooth hand feeling and no odor. Dissolving in water, alcohol, glycerol, ethers and essential oil, and making the aqueous solution weakly acidic. Can be used as hemostatic and antiseptic.
Benzoic acid: also called benzoic acid, the molecular formula is C6H5COOH, which is a compound formed by replacing one hydrogen on a benzene ring with carboxyl (-COOH). Is a scaly or needle crystal having an odor of benzene or formaldehyde at normal temperature. Its vapor has strong irritation, and is easy to cause cough after being inhaled. Slightly soluble in water and easily soluble in organic solvents such as ethanol and diethyl ether. The benzoic acid can be used for preparing benzoic acid salicylic acid ointment, which is a medicament prepared by adding lanolin and yellow vaseline into benzoic acid and salicylic acid as main raw materials. Wherein benzoic acid in combination with salicylic acid can be used for treating adult dermatomycosis, superficial fungal infection such as tinea corporis, tinea manuum, and tinea pedis.
Sulfur: sulfur is also called sulfur, colloidal sulfur, sulfur block. The appearance is light yellow brittle crystal or powder, has obvious smell and can volatilize. Sour, warm and toxic, entering kidney and large intestine meridians. The efficacy is that the external application can kill parasites and relieve itching. Can be used for treating scabies, eczema, and skin pruritus.
Licorice root: belongs to perennial herbs, has strong roots and rootstocks, and is a tonifying Chinese herbal medicine. Light smell, sweet and special taste. The functions are mainly used for clearing away heat and toxic material, eliminating phlegm and relieving cough, and treating abdominal cavity and the like. It can be used for treating carbuncle, sore, ulcer, and sore throat. It can be used singly, orally or externally, or combined.
Borneol: also called borneol, orange slice, blumea balsamifera, borneol, tomatillo castanoca, borneol, plum ice, etc., is prepared from stems and leaves of blumea balsamifera of Compositae or branches and leaves of camphor of Lauraceae through steam distillation and recrystallization. Also can be obtained by a series of chemical processes using turpentine. It can be used for treating block pattern of coma, conjunctival congestion, swelling and pain, sore throat, aphtha, sore and ulcer, swelling and pain, and unhealed ulcer.
On the other hand, the application of the foot washing powder in inhibiting beriberi, foot rot and foot odor is disclosed, a user adds hot water into a foot washing basin, all the components of the foot washing powder are uniformly mixed and added into the foot washing basin, and the affected foot is soaked in the foot washing basin for 20-30 min and then naturally aired.
Further, the temperature of the hot water added into the foot basin is 50-60 ℃.
Further, in the process of soaking the affected foot in the foot basin, hot water is added for multiple times to keep the temperature of the water in the foot basin.
The invention has the beneficial effects that: the salicylic acid guides other medicines to permeate hair follicles of affected parts, then boric acid, benzoic acid, sulfur and borneol are matched and cooperated to kill fungi and bacteria, and finally borneol is used for astringing wounds of the affected parts, so that internal and external concurrent treatment can be achieved under the combined action of the medicines, beriberi, tinea pedis and foot odor can be effectively inhibited, heat is removed, dampness is eliminated, detoxification and itching is relieved, the selected components have no obvious irritation to the affected parts, the medicine compliance in the treatment process is good, continuous treatment can be achieved, and the treatment effect is excellent.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Example 1
The foot washing powder comprises the following components in parts by weight: 8 parts of salicylic acid, 6 parts of boric acid, 6 parts of benzoic acid, 1 part of sulfur powder, 2 parts of licorice powder and 2 parts of borneol powder.
The foot washing powder is applied to inhibiting beriberi, foot rot and foot odor, a user adds hot water into a foot washing basin, all components of the foot washing powder are uniformly mixed and added into the foot washing basin, and the affected foot is soaked in the foot washing basin for 30min and then naturally aired.
Preferably, the temperature of the hot water added to the footbath is 50 ℃.
Preferably, hot water of 60 ℃ is added every 5 minutes to maintain the temperature of water in the footbath during immersion of the affected foot in the footbath.
Example 2
The foot washing powder comprises the following components in parts by weight: 10 parts of salicylic acid, 8 parts of boric acid, 8 parts of benzoic acid, 2 parts of sulfur powder, 2 parts of licorice powder and 1 part of borneol powder.
The foot washing powder is applied to inhibiting beriberi, foot rot and foot odor, a user adds hot water into a foot washing basin, all components of the foot washing powder are uniformly mixed and added into the foot washing basin, and the affected foot is soaked in the foot washing basin for 25min and then naturally aired.
Preferably, the temperature of the hot water added to the footbath is 55 ℃.
Preferably, hot water of 60 ℃ is added every 5 minutes to maintain the temperature of water in the footbath during immersion of the affected foot in the footbath.
Example 3
The foot washing powder comprises the following components in parts by weight: 12 parts of salicylic acid, 9 parts of boric acid, 9 parts of benzoic acid, 2 parts of sulfur powder, 2 parts of licorice powder and 1 part of borneol powder.
The foot washing powder is applied to inhibiting beriberi, foot rot and foot odor, a user adds hot water into a foot washing basin, all components of the foot washing powder are uniformly mixed and added into the foot washing basin, and the affected foot is soaked in the foot washing basin for 20min and then naturally aired.
Preferably, the temperature of the hot water added to the footbath is 60 ℃.
Preferably, hot water of 65 ℃ is added every 5 minutes to maintain the temperature of water in the footbath during immersion of the affected foot in the footbath.
Practical cases of examples 1-3 were used:
case one: for mr. old, the people with foot odor can not normally take off the shoes for many years in life, and are reluctant to enter the families of friends for guests, after the feet are soaked by the foot washing powder of the embodiment 1 every day, the feet are peeled off, after the feet are continuously used for one week, the foot odor condition is gradually improved, and the people can normally live at present.
Case two: mr. Jur, having rotten sole for years, often itching and uncomfortable in toe seam, and accompanied by yellow pus, after the foot is soaked by the foot washing powder of the embodiment 1, the itching in the toe seam on the same day starts to be inhibited, the inhibiting effect is obvious after the foot is continuously used for three days, the foot is peeled, the old skin of the foot falls off after the foot is continuously used for one week, and the itching in the toe seam does not occur any more.
Case three: the fox ladies are infected with beriberi carelessly outside, so that feet are often itchy and have small blisters. After the foot washing powder in the embodiment 2 is used for soaking feet, the beriberi starts to be inhibited every other day, the inhibition effect is obvious after the foot washing powder is continuously used for three days, the feet are peeled, the old skin of the feet falls off after the foot washing powder is continuously used for one week, and the beriberi is improved.
Case four: old women are in favor of wearing sports shoes, but the shoes are not seriously cared for, so that the shoes are infected with fungi, and the symptoms of foot odor and foot rot appear. After the foot washing powder in example 2 is used for soaking feet, foot odor and beriberi begin to be inhibited, the inhibition effect is obvious after the foot washing powder is continuously used for three days, the feet are peeled, old skins of the feet fall off after the foot washing powder is continuously used for one week, and the foot odor and the beriberi are improved.
Case five: mr. Yang, loves the football sports, but because of the foot odor problem, it is called 'smelly foot' by the opera. After the foot washing powder in example 3 is used for foot bath, the feet are peeled, old skins of the feet are peeled off after the foot washing powder is continuously used for one week, the foot odor condition is gradually improved, and the normal life can be realized at present.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (7)

1. The foot washing powder is characterized by comprising the following components in parts by weight: 8-12 parts of salicylic acid, 6-9 parts of boric acid, 6-9 parts of benzoic acid, 1-3 parts of sulfur powder, 1-3 parts of licorice powder and 1-3 parts of borneol powder.
2. The foot washing powder according to claim 1, wherein the components are preferably selected from the following components in parts by weight: 8 parts of salicylic acid, 6 parts of boric acid, 6 parts of benzoic acid, 1 part of sulfur powder, 2 parts of licorice powder and 2 parts of borneol powder.
3. The foot washing powder according to claim 1, wherein the components are preferably selected from the following components in parts by weight: 10 parts of salicylic acid, 8 parts of boric acid, 8 parts of benzoic acid, 2 parts of sulfur powder, 2 parts of licorice powder and 1 part of borneol powder.
4. The foot washing powder according to claim 1, wherein the components are preferably selected from the following components in parts by weight: 12 parts of salicylic acid, 9 parts of boric acid, 9 parts of benzoic acid, 2 parts of sulfur powder, 2 parts of licorice powder and 1 part of borneol powder.
5. The use of the powder for foot bath according to any one of claims 1 to 4 for inhibiting athlete's foot, rotten foot and foot odor, wherein a user adds hot water to a foot bath, mixes and homogenizes the components of the powder for foot bath, adds the mixture to the foot bath, and naturally dries the foot after soaking the foot in the foot bath for 20min to 30 min.
6. Use according to claim 5, wherein the hot water added to the foot basin is at a temperature of 50 ℃ to 60 ℃.
7. The use according to claim 5, wherein the hot water is added multiple times during the soaking of the affected foot in the footbath to maintain the temperature of the water in the footbath.
CN202010612036.0A 2020-06-30 2020-06-30 Foot washing powder and application thereof in inhibiting beriberi, tinea pedis and foot odor Withdrawn CN111557964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010612036.0A CN111557964A (en) 2020-06-30 2020-06-30 Foot washing powder and application thereof in inhibiting beriberi, tinea pedis and foot odor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010612036.0A CN111557964A (en) 2020-06-30 2020-06-30 Foot washing powder and application thereof in inhibiting beriberi, tinea pedis and foot odor

Publications (1)

Publication Number Publication Date
CN111557964A true CN111557964A (en) 2020-08-21

Family

ID=72075394

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010612036.0A Withdrawn CN111557964A (en) 2020-06-30 2020-06-30 Foot washing powder and application thereof in inhibiting beriberi, tinea pedis and foot odor

Country Status (1)

Country Link
CN (1) CN111557964A (en)

Similar Documents

Publication Publication Date Title
JP4515098B2 (en) Dermatitis treatment cream
US6254897B1 (en) Herbal composition for treatment of tinea infections and method of making same
KR101052321B1 (en) Athlete's foot therapeutic composition
CN101919927B (en) Spray for promoting scald healing
US20100068306A1 (en) Compositions for accelerating the healing response
CN102406839A (en) Soaking agent for treating dermatophytosis and rhagadia manus and pedalis
KR20150086031A (en) Cosmetic composition and preparation method therefor
CN107582937B (en) Beriberi liquid and preparation method thereof
CN104873446A (en) Cinnamon oil containing toothpaste
CN102579921A (en) Foot-bathing traditional Chinese medicine powder and preparation method thereof
CN111557964A (en) Foot washing powder and application thereof in inhibiting beriberi, tinea pedis and foot odor
CN111407707A (en) Plant-derived skin health-care lotion and preparation method thereof
KR101052322B1 (en) Method of preparing athlete's foot treatment composition
CN104721480B (en) Treat Chinese herbal medicine for external use composition of traumatic injury and its preparation method and application
KR950007046B1 (en) The beauty wash containing a crude drug and it's preparation
CN114404502A (en) Traditional Chinese medicine composition for treating allergic rhinitis and chronic rhinitis and preparation method
CN104306889B (en) A kind of Chinese medicine powder for the treatment of radiation dermatitis and preparation method thereof
CN111544514A (en) A Chinese medicinal ointment for treating burn and scald, and its preparation method
KR101723615B1 (en) Shampoo Compositions Using Oriental Medicines
CN106798364A (en) A kind for the treatment of chilblain gloves lining cloth
CN103316260A (en) Massage cream for treating tinea of hands and feet
CN103977115A (en) External traditional Chinese medicine preparation for treating trauma and infection, and preparation method thereof
CN104784534B (en) A kind of prevention hand-foot-and-mouth disease hand cleanser
KR20080083847A (en) The manufacturing and using method of treatment for skin trouble
CN107019788A (en) It is a kind of to treat Chinese medicine composition of tinea pedis and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20200821

WW01 Invention patent application withdrawn after publication