An applicator is disclosed for implanting seeds at variably spaced locations in a patient's body. The applicator includes a needle insertable into the body, a base member adapted to be maintained generally stationary with respect to a surface of the body during use, and a needle chuck, which is slidably...http://www.google.co.uk/patents/US5860909?utm_source=gb-gplus-sharePatent US5860909 - Seed applicator for use in radiation therapy
