1
Todd Fjield, Edward Paul Harhen, David E Acker, Patrick David Lopath: Thermal treatment methods and apparatus with focused energy application. Transurgical, Lerner David Littenberg Krumholz & Mentlik, October 21, 2003: US06635054 (340 worldwide citation)

A collapsible ultrasonic reflector incorporates a gas-filled reflector balloon, a liquid-filled structural balloon an ultrasonic transducer disposed within the structural balloon. Acoustic energy emitted by the transducer is reflected by a highly reflective interface between the balloons. In a cardi ...


2
Bharat B Pant, David E Acker, Edward Paul Harhen: Intrabody hifu applicator. Transurgical, Lerner David Littenberg Krumholz & Mentlik, October 8, 2002: US06461314 (280 worldwide citation)

An apparatus and method for applying sonic energy within the body of the living subject. A probe for applying sonic energy within the body of a subject includes a probe body having a proximal and a distal end adapted for insertion into the body of a subject, a spatially-distributed sonic transducer ...


3
Todd Fjield, Edward Paul Harhen, David E Acker, Patrick David Lopath: Thermal treatment methods and apparatus with focused energy application. Prorhythm, Lerner David Littenberg Krumholz & Mentlik, August 1, 2006: US07083614 (199 worldwide citation)

A collapsible ultrasonic reflector incorporates a gas-filled reflector balloon, a liquid-filled structural balloon an ultrasonic transducer disposed within the structural balloon. Acoustic energy emitted by the transducer is reflected by a highly reflective interface between the balloons. In a cardi ...


4
Edward Paul Harhen: Pressure equalized flow control apparatus and method for endoscope channels. Vision Sciences, Seed and Berry, December 2, 1997: US05692729 (87 worldwide citation)

A pressure equalized flow control apparatus and method controls the flow of fluid through a resilient tube. The resilient tube is surrounded by an enclosed chamber having inlet and outlet ports in fluid communication with the interior of the resilient tube. A vent connecting the interior of the resi ...


5
Todd Fjield, Patrick David Lopath, Edward Paul Harhen: Ultrasonic transducers. Transurgical, Lerner David Littenberg Krumholz & Mentlik, July 20, 2004: US06763722 (76 worldwide citation)

A compact, high-power ultrasonic emitting transducer has an active element such as a piezoelectric element and structure defining a reflective backing interface such as an air interface behind the rear surface of the active element. A liquid is provided in the resonant unit between the backing inter ...


6
Todd Fjield, Edward Paul Harhen, David E Acker, Patrick David Lopath: Thermal treatment methods and apparatus with focused energy application. ProRhythm, Lerner David Littenberg Krumholz & Mentlik, February 5, 2008: US07326201 (70 worldwide citation)

A collapsible ultrasonic reflector incorporates a gas-filled reflector balloon, a liquid-filled structural balloon an ultrasonic transducer disposed within the structural balloon. Acoustic energy emitted by the transducer is reflected by a highly reflective interface between the balloons. In a cardi ...


7
Katsumi Oneda, Edward Paul Harhen: Inflatable member for an endoscope sheath. Vision Sciences, Dorsey & Whitney, October 8, 2002: US06461294 (63 worldwide citation)

Apparatus and methods for attaching and forming enclosed inflatable members on an endoscope assembly with a disposable sheath are disclosed. In one embodiment, an apparatus includes a flexible and resilient cuff member that is positioned on the outer surface of the disposable sheath and sealably and ...


8
Bharat B Pant, Emad S Ebbini, David E Acker, Edward Paul Harhen, Todd Fjield: Ultrasonic transducer, transducer array, and fabrication method. Transurgical, Lerner David Littenberg Krumholz & Mentlik, December 10, 2002: US06492762 (43 worldwide citation)

A multi-layer piezoelectric transducer includes a first polymeric layer of piezoelectric material having spaced apart first and second surfaces and a second polymeric layer of piezoelectric material having spaced apart first and second surfaces. A first ground layer overlies the first surface of the ...


9
Patrick David Lopath, Edward Paul Harhen: Balloon alignment and collapsing system. ProRhythm, Lerner David Littenberg Krumholz & Mentlik, October 26, 2004: US06808524 (42 worldwide citation)

A balloon catheter is provided with engagement elements disposed within the balloon so that, upon inflation of the balloon, the engagement elements move in the proximal to distal direction of the catheter so as to abut one another and form a substantially rigid column to maintain alignment of the di ...


10
Patrick David Lopath, Edward Paul Harhen, Yegor Sinelnikov, James D Savage, Jaime Merino, John Hotmer: Balloon alignment and collapsing system. ProRhythm, Lerner David Littenberg Krumholz & Mentlik, March 13, 2007: US07189229 (22 worldwide citation)

A balloon catheter is provided with a sleeve and a flexible material where, upon inflation of the balloon, the sleeve is slid over a ball joint, preventing the flexible material and tube from moving through a range of motion in order to prevent the tube from kinking and misaligning.