1
Vahid Saadat, Richard C Ewers, Eugene G Chen: Shape lockable apparatus and method for advancing an instrument through unsupported anatomy. USGI Medical, Townsend and Townsend and Crew, September 14, 2004: US06790173 (445 worldwide citation)

Apparatus and methods are provided for placing and advancing a diagnostic or therapeutic instrument in a hollow body organ of a tortuous or unsupported anatomy, comprising a handle, an overtube, a distal region having an atraumatic tip. The overtube may be removable from the handle, and have a longi ...


2
Richard C Ewers, Vahid Saadat: Shape lockable apparatus and method for advancing an instrument through unsupported anatomy. USGI Medical, Townsend and Townsend and Crew, November 1, 2005: US06960163 (405 worldwide citation)

Apparatus and methods are provided for placing and advancing a diagnostic or therapeutic instrument in a hollow body organ of a tortuous or unsupported anatomy, comprising a handle, an overtube disposed within a hydrophilic sheath, and a distal region having an atraumatic tip. The overtube may be re ...


3
Robert A Vaughan, Cang C Lam, Richard C Ewers, Vahid Saadat: Tissue manipulation and securement system. USGI Medical, Levine Bagade Han, Charles C Fowler, June 15, 2010: US07736374 (296 worldwide citation)

Tissue manipulation and securement systems are described herein. A tissue manipulation assembly is pivotably coupled to the distal end of a tubular member and has a lower jaw member and an upper jaw member pivotably coupled to the lower jaw member. A reconfigurable launch tube is also pivotably coup ...


4
Vahid Saadat, Joseph M Tartaglia, Eric W Leopold, Peter K Park, Susan Philip: Apparatus for percutaneously performing myocardial revascularization having controlled cutting depth and methods of use. Angiotrax, Nicola A Pisano, Fish & Neave, December 26, 2000: US06165188 (288 worldwide citation)

Apparatus and methods for percutaneously performing myocardial revascularization are provided using a catheter having an end region that is directable to contact a patient's endocardium at a plurality of positions. A cutting head is disposed within a lumen of the catheter and coupled to a drive tube ...


5
Hendrik S Westra, Cang C Lam, Richard C Ewers, Vahid Saadat: Methods for grasping and cinching tissue anchors. USGI Medical, Levine Bagade Han, Charles C Fowler, June 24, 2008: US07390329 (264 worldwide citation)

Methods and apparatus for controlled grasping and cinching or locking of a tissue anchor are provided. In one variation, a tube is provided having a lumen and a resilient member that obstructs the lumen. A grasper may be advanced coaxially through the lumen, such that it reversibly displaces the res ...


6
Vahid Saadat, John H Ream: Cutting apparatus having disposable handpiece. AngioTrax, Nicola A Pisano, Fish & Neave, September 14, 1999: US05951581 (263 worldwide citation)

Apparatus and methods for intraoperatively performing surgery to create transmural channels in tissue, for example, as in transmyocardial revascularization, are provided using apparatus including a single-use handpiece having a mechanical cutting head and means for stabilizing the cutting head in co ...


7
Vahid Saadat: Methods for transluminally performing surgery. AngioTrax, Nicola A Pisano, Fish & Neave, August 3, 1999: US05931848 (254 worldwide citation)

Apparatus and methods for performing surgery within a hollow-body organ are provided. A catheter is provided having a longitudinal axis and an end region carrying an end effector. The end region is movable to a series of positions along the longitudinal axis with a selectable orientation relative to ...


8
Vahid Saadat: Multi-barbed device for retaining tissue in apposition and methods of use. USGI Medical, Townsend and Townsend and Crew, January 31, 2006: US06991643 (237 worldwide citation)

A multi-barbed apparatus is provided, and methods of use, for penetrating two sides of a wound and holding the edges in apposition. The apparatus may be inserted within a wound or underneath the skin, and mechanically adheres the two sides of the wound together. The apparatus includes a biocompatibl ...


9
Vahid Saadat: Apparatus and method for intraoperatively performing surgery. AngioTrax, Nicola A Pisano, Fish & Neave, May 4, 1999: US05899915 (236 worldwide citation)

Apparatus and methods for intraoperatively performing surgery to create transmural channels in tissue, for example, as in transmyocardial revascularization, are provided using a device including a mechanical end effector and means for stabilizing the end effector in contact with the tissue. The end ...


10
Vahid Saadat: Implantable artificial partition and methods of use. USGI Medical, Levine Bagade Han, January 9, 2007: US07160312 (234 worldwide citation)

Apparatus and methods are provided for partitioning a gastro-intestinal lumen by intraluminally reducing a local cross-sectional area thereof. The apparatus comprises a plurality of anchors adapted for intraluminal penetration into a wall of the gastro-intestinal lumen to prevent migration or dislod ...