DR. DONALD E. WENNER, M.D.
Radiology at Main St, Roswell, NM

6440061, Aug 27, 2002

Mar 24, 2000

09/534789

Donald E. Wenner - Roswell NM 88201

A61B 104

600114, 600115, 604 43, 604264, 606108

A laparoscopic port adapter assembly for conducting bile duct and related procedures, including a laparoscopic port , an introducer sheath and a multiple conduit instrument guide. The instrument guide may be inserted into a bile duct to facilitate concurrent introduction of multiple instruments directly into the bile duct without need for forceps manipulation of instruments through additional laparoscopic ports. The procedure may be conducted and viewed in real-time video to improve procedural efficiency and safety. Inventive related useful instruments and procedures are included to complement use and flexibility of the laparoscopic port adapter assembly. A preferred embodiment may include use of a three-conduit instrument guide and concurrent introduction of a lithotripter , choledochoscope and irrigative catheter directly in the bile duct.

2005004, Feb 24, 2005

Jun 11, 2004

10/866588

George Scott - Cedar Crest NM, US
James Rosser - Rye Brook NY, US
Donald Wenner - Roswell NM, US

A61B017/08

606151000

A laparoscopic netting assembly is provided for conducting a gallbladder or bile duct procedure through one of the throughbores in a carrier sheath, which in turn may be positioned within a laparoscopic port. The carrier sheath includes at least one through channel for conducting a frame control rod, and optionally a deployment rod. The netting assembly includes a collapsible and expandable frame and a fluid permeable netting, which is preferably comprises a plurality of netting layers, suspended on the frame for collecting stones released from the gallbladder or bile duct. The frame is sized to also collect the gallbladder. The carrier sheath may also include one or more through channels for a cutting instrument.

5637088, Jun 10, 1997

Sep 14, 1995

8/528319

Donald E. Wenner - Roswell NM
George L. Scott - Roswell NM

A61M 1100

604 93

A threaded, dual needle system is securely attached to a modified subcutaneous venous access port having an internal reservoir, used for intravenous drug therapy particularly in human cancer treatment. A hollow outer needle is paired with a removable, male-threaded solid inner point and inserted through the patient's tissue and through the port's protective, self-sealing silicon septum, and the solid inner needle is then removed, while the outer needle is left in place. Next, a hollow inner needle is threaded through the outer needle to a depth sufficient to interlock with a female-threaded port receptacle at the base of the port's fluid reservoir and rotated to install. Optional additional threading can permit securing the outer needle to the two inner needles. A breakaway system prevents displacement from unintended pulling of the flow-line. The system thus provides additional protection against needle displacement from venous access ports, the resulting leakage, and the problems caused thereby.