1
Motasim Sirhan, John Yan: Intravascular delivery of mycophenolic acid. Avantec Vascular Corporation, Townsend and Townsend and Crew, October 29, 2002: US06471980 (177 worldwide citation)

The present invention provides improved devices and methods for minimizing and/or inhibiting restenosis and hyperplasia after intravascular intervention. In particular, the present invention provides luminal prostheses which allow for programmed and controlled mycophenolic acid delivery with increas ...


2
Motasim Sirhan, John Yan: Apparatus and methods for variably controlled substance delivery from implanted prostheses. Avantec Vascular Corporation, Townsend and Townsend and Crew, July 18, 2006: US07077859 (137 worldwide citation)

The present invention provides improved stents and other prostheses for delivering substances to vascular and other luminal and intracorporeal enviroments. In particular, the present invention provides luminal prostheses which allow for a programmed and controlled substance delivery protocols for a ...


3
John Yan: Flexible stent structure. Avantec Vascular Corporation, Townsend and Townsend and Crew, August 5, 2003: US06602282 (101 worldwide citation)

Luminal prostheses comprise adjacent expansible segments, typically serpentine ring segments joined by sigmoidal links. By properly orienting the sigmoidal links and aligning hinge regions on adjacent serpentine rings, enhanced opening characteristics can be obtained. Additionally, by varying the me ...


4
Motasim Sirhan, John Yan, Kevin Gertner: Catheter having exchangeable balloon. Avantec Vascular Corporation, Townsend and Townsend and Crew, May 27, 2003: US06569180 (89 worldwide citation)

An intravascular balloon catheter comprises a tubular catheter body having a balloon structure removably mounted over the catheter body. The catheter body has a guidewire lumen , and the catheter body may be left in place within a patient's vasculature while the balloon structure is withdrawn a ...


5
Motasim Sirhan, John Yan: Delivery of therapeutic capable agents. Avantec Vascular Corporation, Townsend and Townsend and Crew, August 1, 2006: US07083642 (82 worldwide citation)

The present invention provides improved stents and other prostheses for delivering substances to vascular and other luminal and intracorporeal environments. In particular, the present invention provides for therapeutic capable agent eluting stents with minimized undesirable loss of the therapeutic c ...


6
Motasim Sirhan, John Yan, Kevin Gertner: Method and device for the treatment of vulnerable tissue site. Avantec Vascular Corporation, Duane Morris, November 18, 2003: US06648911 (62 worldwide citation)

The present invention is directed to method and apparatus for treating vulnerable tissue sites, such as aneurysms in the abdominal area or in the thoracic cavity, and expanded tissues on various organs and body surfaces such as the heart. The apparatus of the present invention, are containment membe ...


7
Motasim Sirhan, John Yan, Kevin Gertner: Catheter having exchangeable balloon. Avantec Vascular Corporation, Townsend and Townsend and Crew, November 7, 2006: US07131986 (57 worldwide citation)

An intravascular balloon catheter comprises a tubular catheter body having a balloon structure removably mounted over the catheter body. The catheter body has a guidewire lumen, and the catheter body may be left in place within a patient's vasculature while the balloon structure is withdrawn and opt ...


8
Xiaoxia Zheng, John Yan, Vinayak Bhat: Biodegradable endoprostheses and methods for their fabrication. Elixir Medical Corporation, Wilson Sonsini Goodrich & Rosati, May 22, 2012: US08182890 (22 worldwide citation)

Biodegradable endoprostheses are formed from amorphous polymers having desirable biodegradation characteristics. The strength of such amorphous polymers is enhanced by annealing to increase crystallinity without substantially increasing the biodegradation time.


9
Xiaoxia Zheng, John Yan, Vinayak Bhat: Biodegradable endoprostheses and methods for their fabrication. Elixir Medical Corporation, Wilson Sonsini Goodrich & Rosati, December 4, 2012: US08323760 (16 worldwide citation)

Biodegradable endoprostheses are formed from amorphous polymers having desirable biodegradation characteristics. The strength of such amorphous polymers is enhanced by annealing to increase crystallinity without substantially increasing the biodegradation time.


10
Motasim Sirhan, John Yan: Intravascular delivery of mycophenolic acid. Avantec Vascular Corporation, Townsend and Townsend and Crew, February 22, 2005: US06858221 (14 worldwide citation)

The present invention provides improved devices and methods for minimizing and/or inhibiting restenosis and hyperplasia after intravascular intervention. In particular, the present invention provides luminal prostheses which allow for programmed and controlled mycophenolic acid delivery with increas ...