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Bacteriostatic temperature-sensitive gel, and preparation method and application thereof

A temperature-sensitive gel and summation technology, applied in the field of medicine, can solve the problems of local anti-inflammation, poor bactericidal effect, inconvenient administration, and low gel strength, so as to enhance antibacterial and anti-oxidation effects, avoid uneven drug distribution, Avoid the effect of medication dead ends

Inactive Publication Date: 2021-07-23
宫念樵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lotion is a liquid preparation. Although the lotion can wash the vagina, it is easy to lose and the local action time is short, which makes the local anti-inflammatory and bactericidal effects poor. It needs a large dose of multiple administrations to achieve a good therapeutic effect, and often Changing the internal environment of the vagina is likely to cause repeated infections; suppositories can stay in the affected area for a long time, but they are administered in solid form, and the patient has a foreign body sensation, poor compliance, and inconvenient to use; gels are administered in semi-solid form, but The contact distribution between the drug and the patient's tissue is uneven, there is a dead angle for the drug, and the ordinary gel has low gel strength and poor bioadhesion, resulting in a short local action time and limiting the full use of the drug's curative effect; effervescent tablets can solve half of the problem. Solid and solid preparations are unevenly dispersed and there are problems of drug dead ends, but their local action time is too short, and a large amount of discharge contaminates clothes; film preparations have slow-release characteristics, which can solve the problem of short drug action time, but patients have a foreign body sensation , Poor patient adaptability, uneven coating and inconvenient administration

Method used

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  • Bacteriostatic temperature-sensitive gel, and preparation method and application thereof
  • Bacteriostatic temperature-sensitive gel, and preparation method and application thereof
  • Bacteriostatic temperature-sensitive gel, and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0032] This embodiment provides an antibacterial thermosensitive gel, which includes the following raw material components:

[0033] Traditional Chinese medicine stock solution (raw material components Scutellaria baicalensis 50g, rhubarb 50g, Phellodendron 50g, purslane 50g) 20g, clove oil 0.35g, chitosan 5g, 1% acetic acid 500ml, 95% ethanol 100ml, chlorhexidine acetate 0.25g, propane Triol 9.98g, Tween 80 5g, Poloxamer 407 20g, Poloxamer 188 2g, hydroxypropyl methylcellulose 5g, silver nitrate 2g.

[0034] The antibacterial thermosensitive gel of the present embodiment is prepared by the following method:

[0035] Scutellaria baicalensis, rhubarb, phellodendron, and purslane were extracted three times with water, allowed to cool, filtered, and the filtrates were combined to obtain an extract. In this step, Scutellaria baicalensis, rhubarb, Cortex Phellodendri, and purslane can be extracted three times respectively, cooled, filtered, and all filtrates are combined; Scutella...

Embodiment 2

[0044] Traditional Chinese medicine stock solution (raw material components Scutellaria baicalensis 120g, rhubarb 120g, Phellodendron 100g, purslane 100g) 250g, clove oil 30g, 95% ethanol 200ml, chlorhexidine acetate 2g, glycerol 101g, Tween 80 56g, poloxa Mu 407 188g, poloxamer 188 21g, hydroxypropyl methylcellulose 49g, chitosan 5g, 1% acetic acid 500ml, silver nitrate 20g.

[0045] The antibacterial thermosensitive gel of the present embodiment is prepared by the following method:

[0046] Mix Scutellaria baicalensis, rhubarb, Cortex Phellodendri, and purslane, and use water to decoct and extract the raw materials of traditional Chinese medicine twice. The first time is 4000ml of water, the second time is 2500ml of water, the first time is extracted for 40 minutes, and the second time is decocted to extract After 30 minutes, let it cool, filter, and concentrate the filtrates to a clear cream with a drug-to-liquid ratio of 70 mg / mL (50°C); then add 1% chitosan solution (diss...

Embodiment 3

[0052] Traditional Chinese medicine stock solution (raw material components Scutellaria baicalensis 150g, rhubarb 150g, Phellodendron 135g, purslane 135g) 300g, clove oil 30g, 95% ethanol 200ml, chlorhexidine acetate 5g, glycerol 120g, Tween 80 60g, poloxa Mu 407 250g, poloxamer 188 30g, hydroxypropyl methylcellulose 60g, chitosan 5g, 1% acetic acid 1000ml, silver nitrate 20g.

[0053] The antibacterial thermosensitive gel of the present embodiment is prepared by the following method:

[0054] Mix Scutellaria baicalensis, rhubarb, Cortex Phellodendri, and purslane, and use water to decoct and extract the raw materials of traditional Chinese medicine twice. The first time is 4000ml of water, the second time is 2500ml water, the third time is 2000mL, the first time is extracted for 40 minutes, and the second time is 2000mL. Decoct for 30 minutes for the second extraction, 20 minutes for the third extraction, let cool, filter, combine the filtrates and concentrate to a clear past...

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Abstract

The invention provides antibacterial temperature-sensitive gel. The antibacterial temperature-sensitive gel is prepared from the following ingredients in percentage by mass: 15 to 30 percent of traditional Chinese medicine stock solution, 3 to 15 percent of clove oil, 0.2 to 0.5 percent of chlorhexidine acetate, 9 to 12 percent of glycerol, 3 to 6 percent of Tween 80, 15 to 25 percent of poloxamer 407, 1 to 3 percent of poloxamer 188, 3 to 6 percent of hydroxypropyl methyl cellulose, 3 to 5 percent of ethanol and 0.2 to 2 percent of silver nitrate, wherein the traditional Chinese medicine stock solution is prepared from the following raw material ingredients in parts by weight: 30 to 55 weight parts of radix scutellariae, 45 to 55 parts of radix et rhizoma rhei, 45 to 55 parts of cortex phellodendri and 45 to 55 parts of herba portulacae. The invention also provides a preparation method and application of the antibacterial temperature-sensitive gel. The antibacterial temperature-sensitive gel disclosed by the invention can be applied in a liquid state, can be uniformly applied to an acting surface, avoids drug application dead corners, can be changed into semi-solid gel, forms high-viscosity difficult-to-flow semi-solid state gel, prolongs the drug action time, and achieves the antibacterial and anti-inflammatory effects on skin, orifices and deep tissues to the greatest extent.

Description

technical field [0001] The invention belongs to the technical field of medicine, and in particular relates to a bacteriostatic thermosensitive gel and a preparation method and application thereof. Background technique [0002] Nowadays, with the increasing development and progress of society, people communicate more frequently and extensively, and the ways of communication are more diverse, which also brings new social and health problems, such as women's infection caused by microorganisms or sexual intercourse. The possibility of gynecological diseases (such as trichomonal vaginitis, candida vaginitis, chronic cervicitis, senile vaginitis, pelvic inflammatory disease, etc.) caused by contact will greatly increase, which seriously threatens the health of female friends. Such gynecological diseases are often caused by trichomonas, fungus or bacterial infection, and can also be caused by mixed infection; and the treatment of these diseases is mainly based on vaginal topical ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/756A61K9/70A61K47/38A61P15/02A61P17/00A61P29/00A61P31/04A61K31/155A61K33/38
CPCA61K36/539A61K36/708A61K36/756A61K36/185A61K36/61A61K31/155A61K33/38A61K9/7015A61K47/38A61P31/04A61P29/00A61P17/00A61P15/02A61K2236/331A61K2300/00
Inventor 宫念樵
Owner 宫念樵
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