1
Michael J Rosinko, Alexander Khairkhahan, Michael Horzewski, Stuart D Harman, Richard L Mueller, Douglas R Murphy Chutorian: Steerable catheter with tip alignment and surface contact detector. Gibson Dunn & Crutcher, April 22, 2003: US06551302 (271 worldwide citation)

A steerable percutaneous catheter for guiding at least one functional device to selected surfaces of a body for treatment thereon, particularly adapted for laser-assisted Percutaneous Transmyocardial Revascularization (PTMR). The steerable catheter has a handle portion at its proximal end and a cont ...


2
Cang Lam, Rich Ewers, Alexander Khairkhahan, Vahid C Saadat: Apparatus and methods for forming and securing gastrointestinal tissue folds. USGI Medical, Levine Bagade Han, Charles C Fowler Esq, August 26, 2008: US07416554 (233 worldwide citation)

Apparatus and methods are provided for forming a gastrointestinal tissue fold by engaging tissue at a first tissue contact point, moving the first tissue contact point from a position initially distal to a second tissue contact point to a position proximal of the second contact point to form a tissu ...


3
Alexander Khairkhahan: Percutaneous transcatheter heart valve replacement. Townsend & Townsend & Crew, Mark D Barrish, February 13, 2007: US07175656 (215 worldwide citation)

The present invention provides improved devices and methods for replacing or repairing a malfunctioning heart valve. In particular, improved minimally invasive methods and devices are provided for percutaneous transcatheter implantation of expansible prosthetic heart valves within or adjacent a valv ...


4
Alexander Khairkhahan, Michael J Horzewski, Stuart D Harman, Richard L Mueller, Douglas R Murphy Chutorian: Drug delivery catheter with tip alignment. Eclipse Surgical Technologies, Ilene Lapidus Janofsky, Ross M Carothers, January 30, 2001: US06179809 (165 worldwide citation)

A steerable drug delivery catheter and method of use, particularly adapted for percutaneous use. The distal end of the drug delivery catheter is deflectable. The catheter has a relative movement compensation mechanism for maintaining positioning between the distal end of the drug delivery catheter a ...


5
Vahid Saadat, Richard C Ewers, Tracy D Maahs, Alexander Khairkhahan, Kenneth J Michlitsch: System for optimizing anchoring force. USGI Medical, Levine Bagade Han, Charles C Fowler, April 13, 2010: US07695493 (99 worldwide citation)

Systems for optimizing anchoring force are described herein. In securing tissue folds, over-compression of the tissue directly underlying the anchors is avoided by utilizing tissue anchors having expandable arms configured to minimize contact area between the anchor and tissue. When the anchor is in ...


6
Jennifer Jandak, Michael J Rosinko, Michael J Horzewski, Alexander Khairkhahan: Resistive heating system and apparatus for improving blood flow in the heart. Eclipse Surgical Technologies, Paul Davis, Ilene Lapidus Janofsky, Ross M Carothers, January 23, 2001: US06176856 (78 worldwide citation)

A catheter system with an outer catheter body defining at least one lumen and an inner catheter body defining at least one lumen with proximal and distal portions. An introducer is coupled to the distal portion of the inner catheter body. The introducer has a tissue piercing distal end. A resistive ...


7
Michael A Evans, Denise Demarais, Dino De Cicco, Kelvin Ning, Alexander Khairkhahan, Tyler Jon Strang, Jody Maria Cimbalo, Stephen Leeflang: Apparatus and methods for clot dissolution. Bacchus Vascular, Townsend and Townsend and Crew, August 16, 2005: US06929633 (72 worldwide citation)

Clot disruption and dissolution are achieved using a catheter having the ability to infuse a thrombolytic agent, agitate the clot and agent, and aspirate broken-up clot from the blood vessel. A flow resistor in the catheter provides for infusion and/or aspiration to be concentrated primarily at a cl ...


8
Jennifer Jandak, Michael J Rosinko, Michael Horzewski, Alexander Khairkhahan: Method for improving blood flow in the heart. Eclipse Surgical Technologies, Paul Davis, Ilene Lapidus Janofsky, Ross M Carothers, September 26, 2000: US06123084 (67 worldwide citation)

A method for improving blood flow in the heart provides a catheter system with an outer catheter defining at least one lumen and an inner catheter defining at least one lumen with proximal and distal portions. An introducer is coupled to the distal portion of the inner catheter. The introducer has a ...


9
Michael A Evans, Denise Demarais, Alexander Khairkhahan, Dino Decicco: Apparatus and method for removing occlusive material within blood vessels. Bacchus Vascular, Townsend and Townsend and Crew, July 15, 2008: US07399307 (63 worldwide citation)

An apparatus for treating an occlusive region of a blood vessel includes a catheter including a first lumen extending from an end port to a first side port, and a second lumen extending from a proximal end of the catheter to a second side port. A balloon is mounted on the catheter between the first ...


10
Tracy D Maahs, Richard C Ewers, Jesus Flores, Alexander Khairkhahan, Ruey Feng Peh, Vahid Saadat, Cang C Lam: Apparatus and methods for positioning and securing anchors. USGI Medical, Levine Bagade Han, Charles C Fowler, June 15, 2010: US07736378 (58 worldwide citation)

Apparatus and methods for positioning and securing anchors are disclosed herein. The anchors are adapted to be delivered and implanted into or upon tissue, particularly tissue within the gastrointestinal system of a patient. The anchor is adapted to slide uni-directionally over suture such that a ti ...