Shiley, Inc.

Michael B Baranowski

William Edelman

Richard L Martin

A dual lumen subclavian cannula is disclosed for use in hemodialysis where the lumens are formed by a septum dividing an essentially circular tube longitudinally. The blood return lumen is closed at its distal end by a blunt point and has openings in its side wall proximal to the point. The blood inlet lumen has an open distal end plus openings in the side wall which are proximal to the analogous openings in the blood return lumen. A manifold at the proximal end of the tube separately distributes blood into the return lumen and collects blood from the inlet lumen.

Dual lumen subclavian cannula

A disposable heart valve holder is correctly prepositioned on a prosthetic heart valve and is provided with a pair of resilient fingers in snapping engagement with the interior surface of an annular prosthesis. Each finger of the holder is provided with a detent for retention of the heart valve ring and with a grip for manual manipulation of the holder. The holder is rotatably removed or reattached to the heart valve in order to reduce trauma to the patient and decrease the time required for replacement surgery. One of the fingers of the holder is relatively more flexible than the other and is provided with a tapered leading edge in order to facilitate the removal or reattachment of the holder.

Growing community of inventors

Corona Del Mar, CA, United States of America

Michael B Baranowski