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
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 ...


5
Richard C Ewers, Gary R Dulak, Nabil Hilal: Laparoscopic illumination apparatus and method. Applied Medical Resources, Richard L Myers, Kenneth K Vu, September 6, 2005: US06939296 (191 worldwide citation)

An access device particularly adapted for use in laparoscopic surgery facilitates access with instruments, such as the hand of the surgeon, across a body wall and into a body cavity. The device can be formed of a gel material having properties for forming a zero seal, or an instrument seal with a wi ...


6
Vahid Saadat, Richard C Ewers: Shape lockable apparatus and method for advancing an instrument through unsupported anatomy. USGI Medical, Townsend and Townsend and Crew, November 1, 2005: US06960162 (180 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 ...


7
Richard C Ewers, Boun Pravong, Gary R Dulak: Self-deploying catheter assembly. Applied Medical Resources Corporation, Richard L Myers, July 8, 2003: US06589208 (160 worldwide citation)

A self-deploying catheter assembly comprises an anchoring device mounted to a tube. A distal end of the anchoring device is held in a fixed position by a releasable suture while a proximal end is freely movable between a proximal position and a distal position defined by a stop on the tube. During i ...


8
Richard C Ewers, John R Brustad, Edward D Pingleton, Nabil Hilal, Payam Adlparvar, Scott Taylor, Gary R Dulak, Michael J Dunn, Norman L Morales, Charles C Hart, Robert R Bowes: Wound retraction apparatus and method. Applied Medical Resources Corporation, Richard L Myers, Kenneth K Vu, David G Majdali, October 25, 2005: US06958037 (150 worldwide citation)

A surgical wound retractor is adapted to dilate a wound stretchable to a desired diameter, the retractor includes a first ring having a diameter greater than that desired for the wound and being adapted for disposition interiorly of the wound. A second ring has a diameter greater than that desired f ...


9
Richard C Ewers, Vahid Saadat, Boris Reydel: Shape lockable apparatus and method for advancing an instrument through unsupported anatomy. USGI Medical, Towsend and Townsend and Crew, September 13, 2005: US06942613 (149 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 ...


10
Richard C Ewers, Vahid Saadat, Eugene G Chen: Shape lockable apparatus and method for advancing an instrument through unsupported anatomy. USGI Medical, Townsend and Townsend and Crew, January 4, 2005: US06837847 (140 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 ...