Abstract: A barrel having a sharp cutting end is inserted into an animal body to form a channel connected to a pocket in the target tissue. A piston head mounted in the barrel has a chamber housing a solid element which contains a substance for treating the target tissue. Means associated with the piston head such as a push rod received in the piston bore is utilized to expel the solid element from the chamber into the pocket. The treating substance such as a capsule containing a liquid, gel or other substance is released from the capsule and coats the target tissue in the pocket.

Abstract: Body tissue or cavities are treated by inserting a membrane module containing a substance for treating a condition of the cavity or tissue. The substance is enclosed in a membrane that melts, dissolves, or dissipates in the environment of the cavity such as a vagina to release the substance into the cavity.