1
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 ...


2
James Wright, Jim Deacon, Hendrik S Westra: Instrument guide. Computer Motion, Townsend & Townsend & Crew, April 27, 2004: US06726699 (72 worldwide citation)

An instrument guide that can compensate for surgical instruments that have different outer diameters. The instrument guide includes a shaft that has an inner channel adapted to receive a surgical instrument. The guide also has a leaf that can be deflected relative to the shaft to exert a spring forc ...


3
Hendrik S WESTRA, Cang C LAM, Richard C EWERS, Vahid SAADAT: Apparatus for grasping and cinching tissue anchors. Usgi Medical, Levine Bagade Han, July 24, 2008: US20080177304-A1

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 ...


4
Hendrik S Westra, Cang C Lam, Richard C Ewers, Vahid Saadat: Methods and apparatus for grasping and cinching tissue anchors. USGI Medical, Townsend And Townsend And Crew, November 10, 2005: US20050251210-A1

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 ...