1
Stephen A Sosnowski, Nadhir B Kosa, Steven W Kovalcheck, John H Parrish: Deflectable-end endoscope with detachable flexible shaft assembly. Intramed Laboratories, Freilich Hornbaker & Rosen, March 27, 1990: US04911148 (391 worldwide citation)

An endoscope having a deflectable tip configured so as to have a small outer diameter of approximately 0.15 inch or less. The endoscope includes a flexible shaft subassembly comprised of a conduit having a deflectable end segment at its distal end which can be controlled by a manually operable mecha ...


2
Steven W Kovalcheck: Deflectable endoscope. Life Medical Technologies, Knobbe Martens Olson & Bear, August 27, 1996: US05549542 (202 worldwide citation)

A minimally intrusive endoscope having a deflectable tip. A remotely bendable section adjacent a distal viewing tip enables movement of the tip between a neutral position and angularly disposed positions. A deflection control lever on a proximal control member causes deflection of the viewing tip by ...


3
Steven W Kovalcheck: Surgical device. Intramed Laboratories, Freilich Hornbaker Rosen, May 19, 1992: US05114399 (174 worldwide citation)

A surgical device employs a catheter for removing obstructive material from the body cavity or lumenal passage. The catheter has a blade subassembly on its distal tip for coring, homogenizing, diluting, and aspirating the obstructive material. The obstructive material is homogenized and diluted afte ...


4
Steven W Kovalcheck: Deflectable catheter. Life Medical Technologies, Knobbe Martens Olson & Bear, December 5, 1995: US05472017 (79 worldwide citation)

A minimally intrusive catheter having a deflectable tip. A remotely bendable section adjacent a distal tip enables movement of the tip between a neutral position and angularly disposed positions. A deflection control lever on a proximal control member causes deflection of the distal tip by means of ...


5
Joseph R Bentley, Radford G Ferre, Steven W Kovalcheck: Laser heated probe and control system. HGM Medical Laser Systems, Olive & Olive, February 13, 1990: US04899741 (62 worldwide citation)

A laser-energizable thermal probe apparatus useful for laser angioplasty procedures comprises a heat generating probe assembly connected to the distal end of an optical fiber, the proximal end of the fiber being connected to a source of laser energy. A thermocouple mounts on the probe assembly and i ...


6
Joseph R Bentley, Steven W Kovalcheck: Composite microsize optical fiber-electric lead cable. HGM Medical Laser Systems, Olive & Olive, January 2, 1990: US04890898 (47 worldwide citation)

A composite microsize cable construction comprises a microsize optical fiber for transferring laser energy to a site, a pair of microsize electrical leads for transferring temperature sensing or other signals from the site and a casing material of microsize diameter extruded over the optical fiber a ...


7
Steven W Kovalcheck, John Frederick Hayfield: Cryogenic catheter with deflectable tip. CryoGen, Gerald W Spinks, June 3, 2003: US06572610 (42 worldwide citation)

A flexible cryosurgical catheter having a deflectable segment adjacent its distal end, a pull wire through said catheter connected to the deflectable segment, and a deflection mechanism in its handle for pulling on the pull wire to establish a desired curvature in the deflectable segment.


8
Steven W Kovalcheck: Laser angioplasty probe. HGM Medical Laser Systems, B B Olive, August 2, 1988: US04760845 (35 worldwide citation)

A laser-energizable thermal probe comprising a probe assembly connected to the distal end of an optical fiber, the proximal end of the fiber being connectable to a source of laser energy. The probe assembly comprises a thermally conductive probe body, including a curvoidal tip and a neck portion, an ...


9
David J Lentz, Steven W Kovalcheck: Articulating catheter for cryoablation with reduced diameter section. CryoCor, Nydegger & Associates, August 9, 2005: US06926711 (24 worldwide citation)

A catheter usable for cryogenic ablation of tissues is described. The catheter has a deflectable segment with a reduced diameter and a tip portion with a diameter greater than the reduced diameter. A resilient element allows for bending of the deflectable segment preferentially in one plane, and an ...


10
Steven W Kovalcheck, John C Huculak: System for dissociation and removal of proteinaceous tissue. Alcon, Kenneth D Bassinger, November 2, 2010: US07824870 (11 worldwide citation)

An apparatus and method for the dissociation of soft proteinaceous tissue using pulsed rapid variable direction energy field flow fractionization is disclosed. The pulsed rapid disruptive energy field is created by the use of a probe which surrounds the soft proteinaceous tissue to be removed. Once ...