1
Janine C Jagger, Richard D Pearson, Patrice G Guyenet: Retractable safety needle. The University of Virginia Alumni Patents Foundation, James C Wray, June 30, 1987: US04676783 (149 worldwide citation)

An intravenous needle with a sharpened distal end has a proximal end fixed within a first enlarged end of an inner tube. The enlarged end of the inner tube is held tightly within a first end of an outer tube by friction. The needle passes through a constricted opening in the first end of the outer t ...


2
Janine C Jagger, Richard D Pearson, Patrice G Guyenet, Jessica J Brand: Self-resheathing needle assembly. The University of Virginia Alumni Patents Foundation, James C Wray, June 3, 1986: US04592744 (144 worldwide citation)

A self-resheathing safety needle has a case with a small closed end and a large open end and a needle assembly within the case with the needle projecting through the small closed end. A hub is connected to the needle assembly inside the case and a connector on the hub cooperates with a receiver in t ...


3
Janine C Jagger, Richard D Pearson, Patrice G Guyenet: Retractable safety needles. The University of Virginia Alumni Patents Foundation, James Creighton Wray, November 1, 1988: US04781692 (122 worldwide citation)

A flexible plastic catheter extends from a distal end of a rigid plastic housing. An elastomeric seal at the distal end of the housing tightly fits within the housing and grips in its bore a stylet. The stylet has a sharp distal end and an enlarged proximal end which receives a distal end of a plast ...


4
Janine C Jagger, Richard D Pearson, Patrice G Guyenet: Intravenous port injection and connector system. The University of Virginia Alumni Patents Foundation, James C Wray, June 12, 1990: US04932944 (71 worldwide citation)

A connector has one end for receiving a standard auxiliary line adaptor hub and an opposite end receivable over an intravenous line port in a male-female interference fit. A needle is provided in the interior of the connector and punctures a sealing membrane provided over the line port. After the ne ...