1
Howard J Leonhardt, Trevor Greenan: Percutaneous placement valve stent. World Medical Manufacturing, Paul F Bawel, September 28, 1999: US05957949 (805 worldwide citation)

An artificial valve stent for maintaining patent one way flow within a biological passage is disclosed. The artificial valve includes a tubular graft having radially compressible annular spring portions for biasing proximal and distal ends of the graft into conforming fixed engagement with the inter ...


2
Syde Taheri, Howard J Leonhardt: Apparatus and method for engrafting a blood vessel. The Law Offices of Byron A Bilicki P C, January 7, 1997: US05591195 (444 worldwide citation)

A method and apparatus for engrafting a blood vessel is disclosed. The apparatus includes a hollow tubular graft of a preselected cross section having a proximal and distal end containing compressable and expandable nitinol springs, and connecting bars to facilitate physical communication between bo ...


3
Howard J Leonhardt, Syde A Taheri, Trevor Greenan: Apparatus and method for engrafting a blood vessel. February 3, 1998: US05713917 (290 worldwide citation)

An apparatus and method for engrafting a blood vessel are disclosed. The apparatus includes a tubular graft having radially compressible annular spring portions for biasing proximal and distal ends of the graft into conforming fixed engagement with an interior surface of the vessel, with bifurcated ...


4
Howard J Leonhardt: Pro-cell intra-cavity therapeutic agent delivery device. World Medical Manufacturing Corporation, Paul F Bawel, December 2, 1997: US05693029 (177 worldwide citation)

A flexible and kink-proof intra-cavity delivery catheter for precise placement and injection of therapeutic agent(s) into and/or through the wall of a body cavity at a precise treatment site with even distribution throughout. One or more needle assemblies are disposed around a calibrated balloon whi ...


5
Howard J Leonhardt: Delivery system for deployment and endovascular assembly of a multi-stage stented graft. World Medical Manufacturing Corporation, Sterne Kessler Goldst & Fox P L L C, August 28, 2001: US06280467 (122 worldwide citation)

A multi-stage stent graft for implantation into a blood vessel is disclosed. Each stage or layer may comprise radially compressible spring stents with or without a fabric covering, or may comprise a foamed tube. The various stages or layers may also have an adhesive coated thereon. The multi-stage s ...


6
Howard J Leonhardt, Syde A Taheri, Trevor Greenan: Endoluminal prosthesis. World Medical Manufacturing Corporation, Sterne Kessler Goldstein & Fox P L L C, January 1, 2002: US06334869 (114 worldwide citation)

An apparatus and method for engrafting a blood vessel are disclosed. The apparatus includes a tubular graft having radially compressible annular spring portions for biasing proximal and distal ends of the graft into conforming fixed engagement with an interior surface of the vessel, with bifurcated ...


7
Howard J Leonhardt: Pulmonary artery polyurethane balloon catheter. World Medical Manufacturing Corporation, John M Brandt, December 6, 1994: US05370618 (45 worldwide citation)

A self centering, low profile, low inflation pressure pulmonary artery polyurethane balloon catheter having a reduced neck section and a balloon disposed within the neck section such that the balloon is flush with the catheter body in the deflated state and extends beyond the distal end of the cathe ...


8
Howard J Leonhardt, Syde A Taheri, Trevor Greenan: Method for engrafting a blood vessel. World Medical Manufacturing Corporation, February 8, 2005: US06852116 (44 worldwide citation)

A method for deploying an endoluminal prosthesis by introducing into a bifurcated vessel a sheath introducer having therein a bifurcated graft with a primary and contralateral limb. The contralateral limb being radially retained independent of the sheath introducer. The graft being positionable by a ...


9
Howard J Leonhardt: Method of construction of a balloon catheter. World Medical Corporation, John M Brandt, June 4, 1996: US05522961 (38 worldwide citation)

The method of manufacturing a polyurethane balloon catheter from a length of tubing of such material wherein the tubing is placed in a mold of the desired final expanded shape, the mold and tubing are immersed in a bath of warm water, and air pressure is introduced into the tubing to effect the expa ...


10
Howard J Leonhardt, Syde A Taheri, Trevor Greenan: Apparatus for engrafting a blood vessel. World Medical Manufacturing Corporation, Sterne Kessler Goldstein & Fox P L L C, July 27, 2004: US06767358 (34 worldwide citation)

The present invention relates to an apparatus for deploying and endoluminal prosthesis. The apparatus includes a flexible compressible push rod that allows the catheter to be easily maneuvered through tortuous vessels while providing sufficient deployment force.



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