Sustained antibacterial hemostatic powder and preparation method thereof

Abstract

The invention belongs to the field of medical equipment, particularly relates to the field of medical biopolymer materials and provides sustained antibacterial hemostatic powder and a preparation method of the sustained antibacterial hemostatic powder. The sustained antibacterial hemostatic powder is prepared from nanometer silver, sodium carboxymethyl cellulose and alginate, and by weight, 1-3 parts of the nanometer silver, 10-20 parts of the sodium carboxymethyl cellulose and 5-10 parts of the alginate are included. According to the sustained antibacterial hemostatic powder, the nanometer silver, the sodium carboxymethyl cellulose and the alginate are used as the raw materials, and the sustained antibacterial hemostatic powder is obtained through a spray drying method; and the hemostatic powder not only has the hemostatic function, but also has the excellent antibacterial function, as degradation of the sodium carboxymethyl cellulose and the alginate after the hemostatic powder is in contact with the blood or diffusate, the contained nanometer silver is released slowly, and thus the sustained antibacterial purpose is achieved.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to the field of medical biopolymer materials, and specifically relates to a continuous antibacterial hemostatic powder and a preparation method thereof. Background technique [0002] Bleeding is a prominent manifestation of trauma, and hemostasis is the basic task of trauma rescue. Effective hemostasis can reduce bleeding, preserve effective blood volume, and prevent shock. Therefore, timely and effective hemostasis is an important technology to save lives, reduce mortality, and win further treatment time for the wounded. In addition, due to the formation of a warm and humid environment on the surface of the wound, pathogens such as Staphylococcus aureus, Candida albicans, and Escherichia coli can multiply quickly on the wound and easily cause wound infection. Therefore, while stopping bleeding, wound infection should also be avoided. [0003] However, it is generally difficult for...

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Problems solved by technology

[0003] However, it is generally difficult for existing hemostatic materials to have antibacterial functions. Most of the hemostatic materials generally add antibacterial drugs in order to have antibacterial functions, but this has the problem of antibacterial drug resistance.

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