An ultrasound transmission medium feed device particularly for an endoscopically inserting ultrasound probe adapted to be introduced into a body cavity through and under the guidance of one of biopsy channels provided on an endoscope. The ultrasound transmission medium feed device essentially comprises:...http://www.google.de/patents/US6004273?utm_source=gb-gplus-sharePatent US6004273 - Ultrasound transmission medium feed device for endoscopically inserting ultrasound probe
