Irvin F Hawkins Jr, Mark C Hawkins: Apparatus and method for removing a target object from a body passsageway. Finnegan Henderson Farabow Garrett & Dunner, December 13, 1988: US04790812 (544 worldwide citation)

An apparatus and method for removing a target object from a body passageway. The apparatus comprises a catheter, a spiral wound coil disposed within the catheter and rotatably driven by an air actuated drive means, and a parachute basket. The spiral wound coil has a cutting tip at its distal end whi ...

Irvin F Hawkins Jr: Needle sheath complex and process for decompression and biopsy. Anthony T LoPucki, October 28, 1980: US04230123 (155 worldwide citation)

A needle sheath complex and related process for external use of the complex for decompressing or sampling tissue within a multitude of areas in human and animal bodies.

Irvin F Hawkins Jr: Needle guide assembly. Emrich & Dithmar, October 17, 1989: US04874376 (63 worldwide citation)

A needle guide assembly for placement of tubular surgical instruments within a human or animal body includes a short locator needle assembled within a needle guide outer cannula for penetrating the body to locate a target area, the locator needle being removable from the needle guide assembly permit ...