An endoscopic tool for dispensing units of hemostatic agent broadly comprises a hollow tube which holds a plurality of individual units of the hemostatic agent, a valve at the distal end of the hollow tube which permits the hemostatic agent to pass therethrough but prevents foreign matter from contacting...http://www.google.com/patents/US5281197?utm_source=gb-gplus-sharePatent US5281197 - Endoscopic hemostatic agent delivery system
