Systems and methods for transporting intravascular devices through a body lumen are disclosed. A filter system in accordance with an exemplary embodiment of the present invention may include a guide tip having a guidewire lumen adapted to receive a guidewire, an elongated wire operatively coupled to...http://www.google.com.au/patents/US7651514?utm_source=gb-gplus-sharePatent US7651514 - Nose rider improvement for filter exchange and methods of use