Inventor
ZHU JUDY
US4 patents
Patents
4 patentsUS6494863B1Dec 17, 2002
One-use retracting syringe with positive needle retention
RETRACTABLE TECHNOLOGIES INC224 citations97
US7740615B2Jun 22, 2010
IV catheter introducer with retractable needle—continuation
RETRACTABLE TECHNOLOGIES INC81 citations96
US6872193B2Mar 29, 2005
IV catheter introducer with retractable needle
RETRACTABLE TECHNOLOGIES INC133 citations96
US6572584B1Jun 3, 2003
Retractable syringe with reduced retraction force
RETRACTABLE TECHNOLOGIES INC189 citations95