1
James D Passafaro, Henry Nita, Robert J Siegel, Douglas H Gesswein: Angioplasty and ablative devices having onboard ultrasound components and devices and methods for utilizing ultrasound to treat or prevent vasopasm. Baxter International, Stetina & Brunda, June 28, 1994: US05324255 (414 worldwide citation)

A catheter device incorporating combined ultrasound ablation and balloon dilation components. The catheter device generally comprises an elongate catheter body having proximal and distal ends and an outer surface. Disposed on the outer surface of the catheter body is a dilation balloon. At least one ...


2
James D Passafaro, Ronald G Williams, David J Kupiecki, Greg R Patterson, Kathy M Mah: Methods and systems for treating obstructions in a body lumen. Prolifix Medical, Townsend and Townsend and Crew, December 5, 2000: US06156046 (245 worldwide citation)

A system is provided having a catheter, a torque member extending longitudinally through a lumen of the catheter, a removal mechanism secured to a distal end of the torque member, and a guidewire having a guide section that extends through a lumen of the removal mechanism. The guide section defines ...


3
James D Passafaro, Henry Nita, Robert J Siegel, Douglas H Gesswein: Angioplasty and ablative devices having onboard ultrasound components and devices and methods for utilizing ultrasound to treat or prevent vasospasm. Baxter International, Fulwider Patton Lee & Utecht, December 12, 1995: US05474530 (222 worldwide citation)

A catheter device incorporating combined ultrasound ablation and balloon dilation components. The catheter device generally comprises an elongate catheter body having proximal and distal ends and an outer surface. Disposed on the outer surface of the catheter body is a dilation balloon. At least one ...


4
James M Griffith, Paul J Zalesky, James M Gessert, Viet P Dinh, James D Passafaro: Intravascular ultrasonic imaging probe and methods of using same. InterTherapy, Nixon & Vanderhye, May 26, 1992: US05115814 (168 worldwide citation)

An intravascular ultrasonic imaging probe includes a transducer subassembly adapted to being rotated within a guide catheter via a drive cable. The guide catheter establishes a bearing surface for supporting the transducer subassembly during rotation while also mechanically isolating the rotating tr ...


5
Henry Nita, Douglas H Gesswein, James D Passafaro: Ultra-sound catheter for removing obstructions from tubular anatomical structures such as blood vessels. Baxter International, Stetina & Brunda, May 17, 1994: US05312328 (153 worldwide citation)

An ultrasound catheter for removing obstructions from tubular anatomic structures such as blood vessels, said catheter comprising an elongate flexible catheter body having an ultrasound transmission member or wire extending longitudinally therethrough. A distal head is formed on the distal end of th ...


6
James D Passafaro, James M Griffith: Medical probe assembly having combined ultrasonic imaging and laser ablation capabilities. InterTherapy, Nixon & Vanderhye, April 30, 1991: US05010886 (78 worldwide citation)

Intravascular probe assemblies are provided with both ultrasonic imaging and laser ablation (angioplasty) capabilities. In preferred embodiments, the probe assemblies will include a distally positioned rotatable housing having an ultrasonic transducer and an optical fiber operatively fixed therein s ...


7
Timothy B McFann, John C Muskivitch, James D Passafaro, Kathy M Mah: Guidewire for precision catheter positioning. Prolifix Medical, Townsend and Townsend and Crew, June 18, 2002: US06406442 (72 worldwide citation)

The present invention comprises a guidewire having a compressible guide section capable of deflecting a catheter to abut a lumen wall. The compressible guide section exerts an outward radial force while it is at least partially compressed within a lumen. The guide section permits a physician to prec ...


8
James D Passafaro: Method and apparatus for determining oxygen saturation in vivo. Baxter Travenol Laboratories, Weissenberger and Peterson, March 24, 1987: US04651741 (68 worldwide citation)

Accurate in vivo measurement of blood oxygen saturation by fiberoptical means is made possible throughout a wide range of hematocrit or total hemoglobin values by using a single R/IR ratio I and calculating the SO.sub.2 value therefrom through the use of a second-order polynomial of the form


9
Timothy B Mcfann, Kathy M Mah, James D Passafaro, Roger W Perkins, Joan Huynh, Greg R Patterson, Ronald G Williams, David J Kupiecki: Guidewire for positioning a catheter against a lumen wall. Prolifix Medical, Townsend and Townsend and Crew, April 16, 2002: US06371928 (65 worldwide citation)

The present invention relates to a guidewire having a shaped three dimensional guide section. In the preferred embodiment the guide section is helical, and exerts an outward radial force on a lumen the guidewire is constrained in. The outward radial force can be measured or calculated according to m ...


10
James D Passafaro, Larry B Rogers, Kathy M Mah, Roger W Perkins, Joan Huynh: Apparatus for making wire with radial expansible guide section and methods of manufacturing the same. Prolifix Medical, Townsend and Townsend and Crew, October 31, 2000: US06139557 (31 worldwide citation)

An apparatus and method of making a guidewire with a preformed three dimensional profile is described. The Apparatus comprises a mandrel having a screw thread for receiving a core wire and at least one securing means for holding the core wire onto the mandrel. The core wire must be retained under te ...