1
Roger de la Torre, J Stephen Scott, Thomas A Howell, George D Hermann, David Shields, Robert T Chang, Neil Holmgren, David Willis: Method and device for use in minimally invasive placement of space-occupying intragastric devices. Satiety, Fulwider Patton Lee & Utecht, April 25, 2006: US07033373 (226 worldwide citation)

A space occupying device for deployment within a patient's stomach and methods of deploying and removing the device. The device includes an expandable member and fasteners, such as sutures, that extend to least partially through the patient's stomach wall, and that anchor the device with the patient ...


2
Andrew L Chiang, Jeffrey W Krier, Ron R Hundertmark, Robert T Chang, Grace Y Schulz: Catheter with perfusion system. Devices for Vascular Intervention, Douglas A Chaikin, April 16, 1996: US05507795 (141 worldwide citation)

Improved atherectomy catheters and methods of use are disclosed. The catheter includes a flexible body with a longitudinal passage therethrough. A housing is mounted at the distal end, with an elongated aperture formed in a lateral side. A drive cable is disposed in the passage of the catheter body, ...


3
John A Macoviak, Robert T Chang, David A Rahdert, Timothy R Machold, Rick A Soss: Devices, systems, and methods for supplementing, repairing, or replacing a native heart valve leaflet. Ample Medical, Ryan Kromholz & Manion S C, June 3, 2008: US07381220 (119 worldwide citation)

Devices, systems and methods supplement, repair, or replace a native heart valve. The devices, systems, and methods employ an implant that, in use, extends adjacent a valve annulus. The implant includes a mobile neoleaflet element that occupies the space of at least a portion of one native valve lea ...


4
David A Rahdert, John A Macoviak, Timothy R Machold, Robert T Chang, Rick A Soss: Devices, systems, and methods for retaining a native heart valve leaflet. Ample Medical, Ryan Kromholz & Manion S C, May 5, 2009: US07527646 (60 worldwide citation)

Devices, systems and methods retain a native heart valve leaflet to prevent retrograde flow. The devices, systems, and methods employ an implant that, in use, rests adjacent a valve annulus and includes a retaining structure that is sized and shaped to overlay at least a portion of one or more nativ ...


5
Thomas H Campbell, Todd H Turnlund, Robert T Chang: Stent crimper apparatus with radiation shied. IsoStent, Beyer Weaver & Thomas, October 30, 2001: US06309383 (48 worldwide citation)

A stent crimping apparatus for crimping a deformable radioactive stent onto a deployment device which includes a first jaw member defining a shielded first compression surface, and an opposed, second jaw member defining a shielded second compression surface oriented opposite the first compression su ...


6
John A Macoviak, Robert T Chang, Timothy R Machold, David A Rahdert, Rick A Soss: Methods and devices for heart valve treatments. Ample Medical, Ryan Kromholz and Manion S C, November 6, 2007: US07291168 (45 worldwide citation)

The present invention is a group of medical devices designed to improve heart valve function. The medical devices may be used individually, or in combination to supplement damaged valves, replace damaged valves, or improve damaged valves function. The medical devices include leaflet retainers, a neo ...


7
John A Macoviak, Robert T Chang, David A Rahdert, Timothy R Machold, Rick A Soss: Devices, systems, and methods for supplementing, repairing, or replacing a native heart valve leaflet. MVRx, Ryan Kromholz & Manion S C, September 13, 2011: US08016882 (37 worldwide citation)

An implant for supplementing, repairing, or replacing a native heart valve leaflet or leaflets provides a scaffold, which defines a pseudo-annulus. The implant further has at least two struts in generally oppositely spaced apart positions on the scaffold. The scaffold can be placed in an elastically ...


8
David A Rahdert, John A Macoviak, Timothy R Machold, Robert T Chang, Rick A Soss: Devices, systems, and methods for retaining a native heart valve leaflet. MVRx, Ryan Kromholz & Manion S C, March 27, 2012: US08142494 (37 worldwide citation)

Devices, systems and methods retain a native heart valve leaflet to prevent retrograde flow. The devices, systems, and methods employ an implant that, in use, rests adjacent a valve annulus and includes a retaining structure that is sized and shaped to overlay at least a portion of one or more nativ ...


9
Timothy R Machold, Robert T Chang, John A Macoviak, David A Rahdert: Devices, systems, and methods for reshaping a heart valve annulus, including the use of magnetic tools. MVRx, Ryan Kromholz & Manion S C, April 24, 2012: US08163013 (33 worldwide citation)

Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascula ...


10
Thomas H Campbell, Robert T Chang: Stent loading assembly for a self-expanding stent. IsoStent, Beyer Weaver & Thomas, July 18, 2000: US06090035 (33 worldwide citation)

A stent loading apparatus for loading a self-expanding radioactive stent into a bore of a deployment device in a compressed condition including a storage device defining an elongated first passage formed and dimensioned for sliding receipt of the stent therein. The first passage extends through the ...