A vacuum urological surgical irrigating solution-collecting system of the continuous flow type employs a flexible thin-walled disposable collecting receptacle in a rigid outer supporting container, with spacers to hold the collecting receptacle away from the outer container and to establish a space therebetween....http://www.google.com/patents/US4306557?utm_source=gb-gplus-sharePatent US4306557 - Vacuum urological surgical irrigating solution collecting system
