Lily Chen Tu, Hosheng Tu: Balloon catheter. Polymerex Medical, September 26, 2000: US06123718 (369 worldwide citation)

An ablation balloon catheter for treating tissues or atherosclerosis on a patient having a prior angioplasty procedure, the balloon catheter comprising a conductive elastomer electrode means which is coated onto a balloon surface and is connected to a radiofrequency current source to supply radiofre ...

Paul Teirstein, John A Osth, Thomas H Witzel, Cary Hata, Wallace N Hauck, Hosheng Tu: Catheter system for repairing a mitral valve annulus. Quantum, November 26, 2002: US06485489 (366 worldwide citation)

A catheter system and methods for repairing a valvular annulus or an annular organ structure of a patient comprising sandwiching and compressing the annulus and applying heat sufficient to shrink or tighten tissue surrounding the annulus defect.

James Peter Anduiza, Rodolfo C Quijano, Hosheng Tu: Percutaneously deliverable heart valve. 3F Therapeutics, Jones Day, April 5, 2005: US06875231 (364 worldwide citation)

A percutaneously deliverable heart valve prosthesis and method of delivery, wherein the prosthesis is anchored to a valvular annulus of a patient and used to replace the patient's diseased valve. The prosthesis is supported by a rigid frame that is generally fixed, but capable of being modified betw ...

Hosheng Tu, Weng Kwen Raymond Chia, Cary Hata: Catheter probe for treating focal atrial fibrillation in pulmonary veins. Irvine Biomedical, April 17, 2001: US06217576 (354 worldwide citation)

An improved catheter system and methods for ablating cardiac tissues via a steerable ablation catheter having a liquid-permeable shaft, a liquid-permeable electrode, or a distal opening at its tip section with fluid infusion and irrigation for ablating intracardiac tissues by applying radiofrequency ...

Hosheng Tu, Rodolfo C Quijano: Delivery system for a stentless valve bioprosthesis. 3F Therapeutics, Jones Day, January 27, 2004: US06682558 (347 worldwide citation)

The current invention discloses a catheter and a method for delivering a stentless bioprosthesis in a body channel, the method comprising percutaneously introducing a catheter into the body channel, wherein the catheter contains said stentless bioprosthesis at a retracted state; and disengaging said ...

Hosheng Tu: Catheters system having dual ablation capability. May 22, 2001: US06235024 (337 worldwide citation)

An improved ablation catheter system comprising an ablation element on a distal section of an elongate catheter tubing, the ablation element having dual capability of radiofrequency ablation and ultrasound ablation, the ablation element comprising an ultrasound transducer, a conductive outer surface ...

Jason Artof, Rodolfo C Quijano, Hosheng Tu: Percutaneously deliverable heart valve and methods of implantation. 3F Therapeutics, Jones Day, December 14, 2004: US06830585 (328 worldwide citation)

This invention discloses a percutaneously deliverable heart valve and methods of implantation thereof comprising a valve implantation system to be placed at a body channel of a patient comprising a flexible tissue valve with a plurality of valvular leaflets, each of the leaflets having an in-flow ed ...

Weng Kwen Raymond Chia, Hosheng Tu: Steerable catheter having a loop electrode. Irvine Biomedical, April 27, 1999: US05897554 (311 worldwide citation)

An electrophysiology catheter suitable for radiofrequency ablation of cardiac tissues comprises a proximal section, a catheter shaft section and a distal section whereby a distal loop electrode having a temperature sensor and a close-loop temperature control. A conducting wire extends through the lu ...

Weng Kwen Raymond Chia, Hosheng Tu: Catheter system and methods thereof. Irvine Biomedical, March 2, 1999: US05876399 (302 worldwide citation)

This invention discloses an ablation catheter system with fixation means for use in treatment of cardiac tissues and in other medical applications, such as ablating tumors in a natural body conduit or cavity by applying RF energy, and an inner catheter having alternate energy sources for enhanced ab ...

Lily Chen Tu, Hosheng Tu: Ablation device for treating atherosclerotic tissues. March 14, 2000: US06036689 (254 worldwide citation)

An ablation device for treating atherosclerotic tissues of a patient, the ablation device comprising a catheter shaft and an inner catheter, the inner catheter having a deployable electrode means, wherein the deployable electrode means comprises a plurality of preshaped expandable metallic basket me ...