Capsule and its preparing process and application

Application Number: 00124811
Application Date: 2000.09.15
Publication Number: 1343488
Publication Date: 2002.04.10
Priority Information:
International: A61K9/58
Applicant(s) Name: Fu Junchang
Inventor(s) Name: Fu Junchang
Patent Agency Code: 11139
Patent Agent: sun haochen
Abstract A kind of capsule with coating a layer of insoluble polymer in water on the inner wall and a layer of soluble PH sensitive polymer in intestines on the outer wall has a characteristic of dissolving and diffusing the medicine in the colon absorption with speed limited steps, a fixed time of moving it to the colon to prevent the system releasing medicine in advance in order to have controllable medicine releasing at fixed time and position. The invented capsule is especially suitable to be used for packing the medicine of boilogical gene engineering.