RHEOLOGICALLY MODIFIED AND OSMOTICALLY BALANCED FILL MATERIAL FOR IMPLANT

摘要

An implant (10) including a shell (11), fill material (12), and a joint (13) for closing the shell (11), is disclosed. The joint (13) is formed from the same material as the shell (11), and includes an inner disk shaped silicone layer (20) having a greater diameter than the outer disk shaped layer (22), such that the annular portion (24) is bonded via a vulcanized weld to the inner surface of the shell (11). The fill material (12) is composed of a rheologically modified, osmotically balanced dispersion including an osmotic control agent, such as polyvinyl pyrrolidine, and a rheological agent, such as guar gum.