A rheumatic bruise plaster and its preparation method

By improving the preparation process of liniment, the problems of plaster forming quality and user experience have been solved, and a plaster with appropriate softness and hardness and good adhesion has been prepared for the treatment of symptoms such as rheumatic pain, back and leg pain, numbness of hands and feet and sprains.

CN122297629APending Publication Date: 2026-06-30HUNAN ZHONGZHIYAO BIOENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN ZHONGZHIYAO BIOENGINEERING CO LTD
Filing Date
2026-06-03
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing liniments for bruises and sprains have problems in the preparation process, such as difficulty in controlling the frying temperature, significant heat loss of aromatic and volatile drugs, and unstable softness, hardness, and adhesiveness of the plaster, which affect the forming quality and user experience of the plaster.

Method used

The process involves oil immersion and decoction extraction of medicinal materials, grouping of medicinal powders and plaster bases, and soaking, simmering and decoction extraction, slag removal and oil filtration, paste formation, and temperature-controlled powder addition. This ensures that the medicinal components fully penetrate the plaster base and reduces the loss of aromatic and volatile drugs under high-temperature conditions. Combined with the compatibility of drugs such as Corydalis Rhizome and Saposhnikovia Root, it enhances the effects of promoting blood circulation, clearing the meridians, and relieving pain.

Benefits of technology

A plaster with stable shape, suitable hardness, good adhesion and ease of use was prepared. It is suitable for external application to treat symptoms such as rheumatic pain, lower back and leg pain, numbness of hands and feet and sprains.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a rheumatic bruise plaster and its preparation method, relating to the field of plaster technology. The rheumatic bruise plaster is prepared from raw materials, including oil-extracted medicinal materials, a first medicinal powder, a second medicinal powder, a plaster matrix, and excipients. The oil-extracted medicinal materials include: Cnidium monnieri, Drynaria fortunei, Cyperus rotundus, Melia toosendan, Hydnocarpus macrocephala, Ampelopsis japonica, Lindera strychnifolia, Momordica cochinchinensis, Clematis chinensis, Psoralea corylifolia, Achyranthes bidentata, Halloysite, and Prunus persica. The resulting plaster has stable forming properties, suitable hardness, good adhesion, and ease of use, making it suitable as a topical application for symptoms such as rheumatic pain, lower back and leg pain, numbness in the hands and feet, and bruises.
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