1
Kenneth S Wales, Joseph F Paraschac, David Stefanchik: Articulating surgical instrument. Ethicon Endo Surgery, Matthew S Goodwin, December 30, 1997: US05702408 (553 worldwide citation)

A four-bar linkage for an articulation assembly adapted for use with a surgical instrument is disclosed. The first link is in the form of an actuation lever which pivots transversely to the longitudinal axis of the instrument. The second and third links are operatively connected to the first link. T ...


2
Christopher J Frederick, Richard F Schwemberger, William D Kelly, Joseph F Paraschac, John P Measamer: Method for using a trocar for penetration and skin incision. Ethicon Endo Surgery, Matthew S Goodwin, January 25, 2000: US06017356 (444 worldwide citation)

A method for establishing a surgical port for endoscopic or arthroscopic surgery is disclosed. A trocar is initially provided, and the obturator of the trocar includes a flat cutting blade, a shield that moves proximally and distally from a precock position to an extended position, a precock lever t ...


3
Joseph F Paraschac, Kenneth S Wales, Rudolph H Nobis, Kip Rupp: Self protecting knife for curved jaw surgical instruments. Ethicon Endo Surgery, Bernard Shay, August 25, 1998: US05797938 (260 worldwide citation)

An electrosurgical hemostatic instrument including a curved end effector. A preferred embodiment of the invention provides a bipolar endoscopic clamping, coagulation and cutting device. In this device, a substantially straight, axially flexible knife is used to cut tissue grasped by the jaws of the ...


4
Joseph F Paraschac, John A Scholl, Thomas A Silvestrini: Corneal implant introducer and method of use. KeraVision, Morrison & Foerster, April 18, 2000: US06050999 (122 worldwide citation)

A device for introducing a corneal implant into a cornea of a human eye. The device includes a body, a member coupled thereto, and a guide portion. The body has a distal end and a proximal end. The guide portion is disposed at the distal end of the body and forms a channel. The guide portion is conf ...


5
Joseph F Paraschac, Edward J Biehle IV: Endoscopic mechanism with friction maintaining handle. Ethicon, Paul A Coletti, November 21, 1995: US05468250 (115 worldwide citation)

Described herein is an endoscopic instrument such as a dissector, scissor or grasper in which there is provided a shaft which defines a longitudinal axis of the instrument. This shaft is able to rotate about the handle portion of the instrument. This mechanism also provides for articulation of the e ...


6
Richard F Schwemberger, William D Kelly, Joseph F Paraschac, John P Measamer: Trocar for penetration and skin incision. Ethicon Endo Surgery, Matthew S Goodwin, May 18, 1999: US05904699 (73 worldwide citation)

A trocar which has an obturator assembly for establishment of a surgical port for endoscopic or arthroscopic surgery is disclosed. The obturator includes a flat cutting blade, a shield that moves proximally and distally, a precock lever to move the shield proximally to expose the flat cutting blade, ...


7
Yosef P Krespi, David Volpi, Alexander K Arrow, Joseph F Paraschac: Suspension implant. ZELEGENT, K&L Gates, October 23, 2018: US10105257

Methods and apparatuses for lifting, suspending and stiffening a patient's tissue are disclosed. In an embodiment, a surgical implant includes a body having a distal end and a proximal end, a needle attachment member located at the distal end of the body, a plurality of first barbs located on the bo ...


8
Joseph F Paraschac: Electrosurgical clamping device with insulation limited bipolar electrode. August 4, 1998: USH0001745

An electrosurgical hemostatic instrument is provided in which the coagulation status of tissue engaged by two elements delivering an electrosurgical energy to tissue may be observed, and in which damage from thermal spread may be minimized. A preferred embodiment of the invention provides a bipolar ...


9
Joseph F Paraschac: Multiple headed instrument for corneal surgery. Baker & Mckenzie, January 31, 2002: US20020013593-A1

The present invention involves a surgical instrument for guiding a delamination instrument into the cornea of a human eye. The instrument generally includes a handle portion and an end portion. The end portion has at least two flat (or substantially flat) members extending therefrom and in different ...


10
D Bruce Modesitt, Dan J Hammersmark, Joseph F Paraschac: Methods for forming tracts in tissue. Morrison & Foerster, April 23, 2009: US20090105744-A1

Described here are methods for forming one or more tracts in tissue. The tracts may be formed in any suitable or desirable tissue, and may seal relatively quickly without the need for a supplemental closure device. In some variations, the methods comprise advancing a tissue-locating member adjacent ...