1
John W Boretos, Robert A Poirier: Aortic heart valve catheter. The United States of America represented by the Department of Health Education and Welfare, John S Roberts Jr, Norman J Latker, Thomas G Ferris, November 8, 1977: US04056854 (696 worldwide citation)

An artificial valve remotely placeable in a blood vessel without major surgery to supplant the function of a malfunctioning natural valve including an expansible check valve remotely placed in a constricted configuration through the vessel and a remotely removable constraint for selective expansion ...


2
John W Boretos, Norio Iriguchi: Unitized three leaflet heart valve. The United States of America represented by the Secretary of the Department of Health Education & Welfare, Browdy and Neimark, September 16, 1980: US04222126 (505 worldwide citation)

A polyurethane heart valve has a semirigid frame composed of a base ring and three struts, and an elastomeric membrane integral and unitary with the frame, the contours of which make up three leaflets of the valve. The leading edges of the leaflets which form the commissure line are reinforced with ...


3
John W Boretos, Norio Iriguchi: Method of making unitized three leaflet heart valve. The United States of America represented by the Department of Health Education and Welfare, Browdy and Neimark, May 5, 1981: US04265694 (382 worldwide citation)

An artificial heart valve comprising a semi-rigid framework having three projecting symmetrical struts and open axially therethrough, as well as a polyurethane elastomeric membrane attached to the struts and constituting three leaflets, is formed by molding the framework, including the base and stru ...


4
John W Boretos: Balloon catheter and technique for the manufacture thereof. The United States of America represented by the Department of Health Education and Welfare, Browdy and Neimark, March 10, 1981: US04254774 (80 worldwide citation)

A single-lumen, one piece catheter approximately 0.04 inch in diameter with an integral balloon at its end having a wall thickness of 0.005 inch or less, sufficiently small to be retractible by suction into the catheter and to be extensible at a desired site by fluid pressure. The balloon may have a ...


5
George M Thomas, John W Boretos, Donald C Syracuse, John A Clark, Anthony J Vita, Vincent A Gaudiani: Electrode for artificial pacemaker. The United States of America represented by the Secretary of Health Education and Welfare, John S Roberts Jr, Norman J Latker, Thomas G Ferris, September 12, 1978: US04112952 (64 worldwide citation)

An electrode for implantation in the heart to control atrio-ventricular block by artificial pacemaker including plural electrically conductive wires grouped in a bundle with spring metal arcuate prongs formed on one end thereof. A sheath is provided to compress the prongs for insertion of the electr ...


6
John W Boretos: Jet controlled catheter. The United States of America represented by the Department of Health and Human Services, Holman & Stern, September 13, 1983: US04403985 (56 worldwide citation)

The leading end of a catheter tube is directionally controlled by reactive forces imparted to the tube by pressurized control fluid issued from selected control ports defined through the tube proximate its forward end. The reactive forces can be used to bend, turn, propel and otherwise maneuver the ...


7
John W Boretos, Norio Iriguchi: Hydrogel adhesives and sandwiches or laminates using microwave energy. The United States of America represented by the Secretary of the Department of Health & Human Services, John S Roberts Jr, July 13, 1982: US04339295 (39 worldwide citation)

A method of bonding a material to a substrate utilizing a hydrogel adhesive and a source of microwave energy of at least 100 MHz through a waveguide. The bonding may be temporary and frangible by water or may be permanent where it is achieved in a pressure vessel.