Equipment for intracerebral administration of preparations is composed of a preparation-administering device (1) holding a preparation (2), and a plunger (4) removably arranged in the preparation-administering device adapted to push the preparation held therein toward one end of the ...http://www.google.com.au/patents/US5800390?utm_source=gb-gplus-sharePatent US5800390 - Equipment for intracerebral administration of preparations