1
George W Weaver, Damond C Holsinger, David F Leighton, Harold Jacob: Method and apparatus for electrosurgically obtaining access to the biliary tree and placing a stent therein. Arrow Precision Products, Amster Rothstein & Ebenstein, July 16, 1996: US05536248 (178 worldwide citation)

A method of electrosurgically obtaining access to the biliary tree of a patient and visualizing a duct thereof using a catheter having a least a first lumen and a second lumen. The first lumen has a needle-knife disposed therein, which knife may be moved between a deployed position and a sheathed po ...


2
George W Weaver: Biliary biopsy device. Arrow Precision Products, Amster Rothstein & Ebenstein, October 17, 1995: US05458112 (165 worldwide citation)

A surgical instrument assembly for use in a biopsy operation includes a flexible tube having a pair of opposed ends and a substantially rigid, cylindrical cutter having a distal end, a proximal end secured to one of the opposed tube ends for longitudinal movement therewith, and a sidewall connecting ...


3
George W Weaver, Harold Jacob, David F Leighton, Damond C Holsinger: Multi-lumen endoscopic catheter. Arrow Precision Products, Amster Rothstein & Ebenstein, February 4, 1997: US05599299 (138 worldwide citation)

Multi-lumen catheters are intended for advancement through the accessory channel on endoscope into a body passage into the gastrointestinal system. The catheters have two or more independent lumens extending continuously to ports at the distal tip for injection of a contrast medium simultaneously wi ...


4
George W Weaver, Harold Jacob, David F Leighton, Damond C Holsinger: Multi-lumen endoscopic catheter. Medical Innovations Corporation, Thorpe North & Western, December 1, 1998: US05843028 (115 worldwide citation)

Multi-lumen catheters are intended for advancement through the accessory channel on endoscope into a body passage into the gastrointestinal system. The catheters have two or more independent lumens extending continuously to ports at the distal tip for injection of a contrast medium simultaneously wi ...


5
George W Weaver, Damond C Holsinger, David F Leighton, Harold Jacob: Method for electrosurgically obtaining access to the biliary tree with an adjustably positionable needle-knife. Arrow Precision Products, Amster Rothstein & Ebenstein, February 4, 1997: US05599300 (107 worldwide citation)

A method of electrosurgically obtaining access to the biliary tree of a patient and visualizing a duct thereof using a catheter having at least a first lumen and a second lumen defined therethrough, each lumnen terminating in an opening defined at a distal end of the catheter, the first lumen of the ...


6
George W Weaver, Harold Jacob, Damond C Holsinger: Surgical combination inject and snare apparatus. Arrow Precision Products, Amster Rothstein & Ebenstein, August 6, 1996: US05542948 (99 worldwide citation)

A surgical apparatus for simultaneously deploying a first instrument while retrieving a second instrument from the distal end of a sheath and vice versa with a single stroke actuator. The actuator includes an elongated support having a provision for grasping at one end thereof, a first sliding membe ...


7
George W Weaver, Harold Jacob, David F Leighton, Damond C Holsinger: Multi-lumen endoscopic catheter. Medical Innovations Corporation, Thorpe North & Western L, August 4, 1998: US05788681 (97 worldwide citation)

Multi-lumen catheters are intended for advancement through the accessory channel on endoscope into a body passage into the gastrointestinal system. The catheters have two or more independent lumens extending continuously to ports at the distal tip for injection of a contrast medium simultaneously wi ...


8
George W Weaver, Harold Jacob, David F Leighton, Damond C Holsinger: Multi-lumen endoscopic catheter. Ballard Medical Products, Dority & Manning P A, August 3, 2004: US06770066 (81 worldwide citation)

Multi-lumen catheters are intended for advancement through the accessory channel on endoscope into a body passage into the gastrointestinal system. The catheters have two or more independent lumens extending continuously to ports at the distal tip for injection of a contrast medium simultaneously wi ...


9
George W Weaver, Harold Jacob, David F Leighton: Method of using a dual lumen biliary catheter. Arrow Precision Products, Amster Rothstein & Ebenstein, March 14, 1995: US05397302 (78 worldwide citation)

A improved biliary catheter is disclosed. The catheter comprises a tube constructed from a polyurethane or nylon having a durometer of about 60D and coated with a hydrophilic coating to provide lubricity, kink resistance and suppleness. The tube has substantially cylindrical sidewalls and a proximal ...


10
George W Weaver: Mouthpiece with oxygen receiving and directing structure. Arrow Precision Products, Amster Rothstein & Ebenstein, May 9, 1995: US05413095 (34 worldwide citation)

This invention is directed to a mouthpiece which directs oxygen into to the mouth of a patient, whether the oxygen is supplied to the patient by a single oxygen supply tube or by conventional nasal cannulae extending from a common oxygen supply tube. In addition, the mouthpiece of the invention prov ...