Modified Starch Material of Biocompatible Hemostasis

A method of forming a starch-blood coagulation on a wounded tissue of an animal, comprising a step of applying a biocompatible modified starch which is a hemostatic powder consisting essentially of biocompatible modified starch particles having water absorbency capacity not lower than 1 times its own particle weight and a molecular weight 10,000 Daltons or more and a grain diameter of 10 to 1000 μm, wherein the hemostatic powder has an adhesiveness sufficient that the hemostatic powder forms a starch-blood coagulation upon contacting the wounded tissue when being applied directly onto the wounded tissue of the animal, wherein the biocompatible modified starch particles have starch grains with grain diameter 30 to 500 μm, at least 95% starch grains in said hemostatic powder with a diameter 30 to 500 μm of in total, wherein the biocompatible modified starch contains one or more groups of pre-gelatinized starch, acid modified starch, oxidized starch, esterified starch, and cross-linked starch, wherein the biocompatible modified starch contains at least pre-gelatinized hydroxypropyl distarch phosphate in pre-gelatinization modification.

A method of forming a starch-blood coagulation on a wounded tissue of an animal, comprising a step of applying a biocompatible modified starch which is a hemostatic powder consisting essentially of biocompatible modified starch particles having water absorbency capacity not lower than 1 times its own particle weight and a molecular weight 10,000 Daltons or more and a grain diameter of 10 to 1000 μm, wherein the hemostatic powder has an adhesiveness sufficient that the hemostatic powder forms a starch-blood coagulation upon contacting the wounded tissue when being applied directly onto the wounded tissue of the animal, wherein said biocompatible modified starch contains one or more groups of pre-gelatinized starch, acid modified starch, oxidized starch, esterified starch, and cross-linked starch, wherein the biocompatible modified starch contains at least one carboxymethyl starch, hydroxyethyl starch, and cationic starch in pre-gelatinization modification.

A method of forming a starch-blood coagulation on a wounded tissue of an animal, comprising a step of applying a biocompatible modified starch which is a hemostatic powder consisting essentially of biocompatible modified starch particles having water absorbency capacity not lower than 1 times its own particle weight and a molecular weight 10,000 Daltons or more and a grain diameter of 10 to 1000 μm, wherein the hemostatic powder has an adhesiveness sufficient that the hemostatic powder forms a starch-blood coagulation upon contacting the wounded tissue when being applied directly onto the wounded tissue of the animal, wherein the biocompatible modified starch particles have starch grains with grain diameter 30 to 500 μm, at least 95% starch grains in said hemostatic powder with a diameter 30 to 500 μm of in total, wherein the biocompatible modified starch contains one or more groups of pre-gelatinized starch, acid modified starch, oxidized starch, esterified starch, and cross-linked starch, wherein the biocompatible modified starch contains at least one carboxymethyl starch, hydroxyethyl starch, and cationic starch in pre-gelatinization modification.