A flexible or elastic brachytherapy strand that includes an imaging marker and/or a therapeutic, diagnostic or prophylactic agent such as a drug in a biocompatible carrier that can be delivered to a subject upon implantation into the subject through the bore of a brachytherapy implantation needle has...http://www.google.co.uk/patents/US7776310?utm_source=gb-gplus-sharePatent US7776310 - Flexible and/or elastic brachytherapy seed or strand