Wouter De Graaff,Marc-Antoine Driancourt,Raymond Zeeman
申请号：
US13256286
公开号：
US09198857B2
申请日:
2010.03.15
申请国别(地区):
US
年份:
2015
代理人:
摘要：
The present invention relates to a veterinary zoo-technical drug delivery system (device) for the simultaneous release of two or more active substances, which system releases the active substances in a substantially constant ratio over a prolonged period of time. The drug delivery system can be in different forms, such as e.g. an implant, or a intravaginal device such as a helical coil, a spring or a ring.
