Celsion Corporation

Beijing Team Hospital Management Co., Ltd.

Qingwei Jiang

Wenbin Yang

Xingguo Mei

Quanzhi Liu

Junli Zheng

Weifeng Yi

Weiping Yu

An osmotic pump controlled release tablet and the preparation method thereof are disclosed. The osmotic pump controlled release tablet is composed of tablet core, semipermeable membrane and optional film coating. The material of said semipermeable membrane is composed of ethyl cellulose and povidone in the ratio of 1:1&#x2dc;1:4 by weight. Said tablet core comprises drug containing layer and push layer. The osmotic pump controlled release tablet also characterizes in that; (1) the angle &#x3b8;formed by the outer curved surface of the drug containing layer and the lateral surface is 120&#xb0;-180&#xb0;; and/or (2) the ratio of Lto r is 0.27-1.0, wherein Lis the vertical distance from the central vertex of the outer curved surface of the drug containing layer to the plane formed by the intersection line between the outer curved surface of the drug containing layer and the lateral surface, and r is the radius of the tablet core.

Osmotic pump controlled release tablet and preparation method thereof

A thermosensitive liposome for the delivery of active agents and a composition thereof are disclosed, wherein the liposome comprises at least one phosphatidylcholine, at least one phosphatidylglycerol and at least one lysolipid, and the gel to liquid phase transition temperature of said liposome is from 39 0&#xb0; C. to 45&#xb0; C.

Thermosensitive liposomes containing therapeutic agents

Growing community of inventors

Beijing, China

Qingwei Jiang