48results about How to "Regular particle size distribution" patented technology

The invention provides a traditional Chinese medicine granular preparation with angelica extract and a preparation method thereof. Traditional Chinese medicine spheroidized particles are prepared by using a traditional Chinese medicine extract and a pharmaceutically acceptable carrier. The shapes of the traditional Chinese medicine spheroidized particles are spherical or similar to spheres, and the density of the traditional Chinese medicine spheroidized particles ranges from 0.6 g/ml to 1.3 g/ml. A single dose of the spheroidized particles is small, the medicine taking is convenient, and the granular preparation can be used as a semifinished product of capsules and can also be used for developing sustained and controlled release preparations of traditional Chinese medicine.

The invention relates to the fields of biological medicine and biomaterial, and more specifically relates to a decellularized heart valve which can controllably releasing vascular endothelial growth factor and a method of preparation and application thereof. The decellularized heart valve contains sulfhydrylated decellularized heart valve and a nano material which is connected to the sulfhydrylated decellularized heart valve and which can release vascular endothelial growth factor. The nano material is made of raw materials containing the following components: maleimide-polyethylene glycol-polycaprolactone, polycaprolactone and vascular endothelial growth factor; the vascular endothelial growth factor contains VEGF165. The decellularized heart valve provided by the invention has the characteristics that the exogenous biological signal vascular endothelial growth factor is introduced to the decellularized valve support material, thereby accelerating endothelialization of the decellularized valve, and improving the biological performance of the valve support material and the application prospect is wide.

The invention provides a traditional Chinese medicine granular preparation containing grass-leaved sweetflag extractive and a preparation method thereof. In the invention, traditional Chinese medicine spheroidized particles are prepared by traditional Chinese medicine extractive and carriers acceptable in pharmacy. The outline of the traditional Chinese medicine spheroidized particles takes sphere shape or round type shape. The density of the preparation is 0.6-1.3 g/ml. The spheroidized particles of the invention have low single dose, are convenient in use, can be served as intermediate products of capsules, and also can be used for developing traditional Chinese medicine controlled release preparation.

The invention relates to a traditional Chinese medicine pellet which is prepared from traditional Chinese medicine extractives or traditional Chinese medicine extracts and a base pellet according to the weight ratio of (1:5)-(5:1); and the traditional Chinese medicine pellet has the bulk density of 0.6-1.3g/ml, the specific surface area of 0.005-0.05m<2>/g and the particle size of 0.5-1.8mm. The invention also provides a preparation method of the pellet, so that the problems that traditional Chinese medicines or vegetable drugs easily absorb moisture and are unstable are solved; and the preparation method is simple, feasible and suitable for industrial production.

The invention provides a traditional Chinese medicine granular preparation with notoginseng extract and a preparation method thereof. Traditional Chinese medicine spheroidized particles are prepared by using a traditional Chinese medicine extract and a pharmaceutically acceptable carrier. The shapes of the traditional Chinese medicine spheroidized particles are spherical or similar to spheres, and the density of the traditional Chinese medicine spheroidized particles ranges from 0.6 g/ml to 1.3 g/ml. A single dose of the spheroidized particles is small, the medicine taking is convenient, and the granular preparation can be used as a semifinished product of capsules and can also be used for developing sustained and controlled release preparations of traditional Chinese medicine.

The invention relates to a preparation method of lithium iron phosphate, an active substance applied in the anode of lithium-ion secondary batteries. The method comprises a mixture that contains lithium compound, iron compound, phosphorus compound and carbon source additive is sintered and cooled to get a sintering product; wherein, the iron compound is ferric iron compound; the sintering method is carried out in inert atmosphere or reducing atmosphere; the mixture is sintered at a first constant sintering temperature, and then the sintering product is acquired; the sintering product acquired from sintering at the first sintering temperature is cooled to room temperature and ground; the mixture is sintered at a second constant sintering temperature, and is cooled to room temperature in inert atmosphere or reducing atmosphere; the second sintering temperature is at least 100 DEG C higher than the first sintering temperature. The lithium iron phosphate acquired by the method of the invention has relatively high specific discharge capacity and specific volumetric capacity, and the produced batteries have small size, high capacity and good discharge performance at high current, and the invention can combine the advantages of lithium iron phosphate prepared by taking ferrous iron and ferric iron as iron sources respectively, thus the performance can be remarkably improved.

The invention provides a traditional Chinese medicine granular preparation with ginkgo biloba extract and a preparation method thereof. Traditional Chinese medicine spheroidized particles are prepared by using the ginkgo biloba extract and a pharmaceutically acceptable carrier. The shapes of the traditional Chinese medicine spheroidized particles are spherical or similar to spheres, and the density of the traditional Chinese medicine spheroidized particles ranges from 0.6 g/ml to 1.3 g/ml. A single dose of the spheroidized particles is small, the medicine taking is convenient, and the granular preparation can be used as a semifinished product of capsules and can also be used for developing sustained and controlled release preparations of traditional Chinese medicine.

The invention provides a bottom blowing reduction device. The bottom blowing reduction device comprises a furnace body, a feed port, a discharge port, a reduction gas inlet and a reduction gas outlet;the furnace body is transversely arranged, and forms a certain included angle with the horizontal direction; in the length direction of the furnace body, a gas cavity and a material cavity are formedin the furnace body; the gas cavity and the material cavity are separated by a porous plate; the feed port is formed in one higher end of the furnace body; and the reduction gas inlet and the reduction gas outlet both communicate with the gas cavity. The invention further provides a method for bottom blowing reduction by using the device; and materials to be reduced are fed in the material cavityfrom the feed port, slowly move downwards along the inclined furnace body under coaction of the gravity and the reduction gas, and are finally reduced and output from the discharge port. The method has no need to use a push rod or a conveying belt for driving a boat container to move, so that the boat container and a conveying device are omitted.

The invention provides a traditional Chinese medicine granular preparation with ageratum extract and a preparation method thereof. Traditional Chinese medicine spheroidized particles are prepared by using a traditional Chinese medicine extract and a pharmaceutically acceptable carrier. The shapes of the traditional Chinese medicine spheroidized particles are spherical or similar to spheres, and the density of the traditional Chinese medicine spheroidized particles ranges from 0.6 g/ml to 1.3 g/ml. A single dose of the spheroidized particles is small, the medicine taking is convenient, and the granular preparation can be used as a semifinished product of capsules and can also be used for developing sustained and controlled release preparations of traditional Chinese medicine.

The invention provides a traditional Chinese medicine granular preparation with shrubby sophora extract and a preparation method thereof. Traditional Chinese medicine spheroidized particles are prepared by using a traditional Chinese medicine extract and a pharmaceutically acceptable carrier. The shapes of the traditional Chinese medicine spheroidized particles are spherical or similar to spheres, and the density of the traditional Chinese medicine spheroidized particles ranges from 0.6 g/ml to 1.3 g/ml. A single dose of the spheroidized particles is small, the medicine taking is convenient, and the granular preparation can be used as a semifinished product of capsules and can also be used for developing sustained and controlled release preparations of traditional Chinese medicine.

The invention provides a traditional Chinese medicine granular preparation with astragalus extract and a preparation method thereof. Traditional Chinese medicine spheroidized particles are prepared by using a traditional Chinese medicine extract and a pharmaceutically acceptable carrier. The shapes of the traditional Chinese medicine spheroidized particles are spherical or similar to spheres, and the density of the traditional Chinese medicine spheroidized particles ranges from 0.6 g/ml to 1.3 g/ml. A single dose of the spheroidized particles is small, the medicine taking is convenient, and the granular preparation can be used as a semifinished product of capsules and can also be used for developing sustained and controlled release preparations of traditional Chinese medicine.

The invention provides traditional Chinese medicine granular preparation containing rhizoma anemarrhenae extractive and a preparation method thereof. In the invention, traditional Chinese medicine spheroidized particles are prepared by traditional Chinese medicine extractive and carriers acceptable in pharmacy. The outline of the traditional Chinese medicine spheroidized particles takes sphere shape or round type shape. The density of the preparation is 0.6-1.3 g/ml. The spheroidized particles of the invention have low single dose, are convenient in use, can be served as intermediate products of capsules, and also can be used for developing traditional Chinese medicine controlled release preparation.