05395349 is referenced by 227 patents and cites 39 patents.

A large-diameter expandable sheath for use in introducing a catheter or other medical instrument into a vessel in the body of a patient. The expandable sheath comprises an elongate sheath tube formed of a flexible material which has proximal and distal extremities and a passage extending therethrough of a maximum predetermined diameter. The distal extremity of the elongate sheath tube is folded longitudinally to a smaller folded diameter. The sheath tube may be self-expanding or may be reinforced with a self-expanding wire or expandable stents. A backflow adapter is secured to the proximal extremity of the elongate sheath tube. The backflow adapter has a central opening therein in registration with the passage in the sheath tube. A normally closed primary valve is disposed in the central opening of the backflow adapter and is movable to an open position. A normally open secondary valve, movable to a closed position, may be configured in the backflow adapter proximal the sheath tube and distal the primary valve. The primary and secondary valves when open permit a catheter or other medical instrument to be inserted into the sheath, and when closed form a hemostatic seal about the catheter. A sheath introducer is provided for guiding the distal end of the sheath tube into a vessel and is configured to be positioned within the backflow adapter.

Title
Dual valve reinforced sheath and method
Application Number
807089
Publication Number
5395349
Application Date
August 19, 1993
Publication Date
March 7, 1995
Inventor
Steven G Baker
Sunnyvale
CA, US
David C Dillow
Cupertino
CA, US
Ronald G Williams
Menlo Park
CA, US
Wesley D Sterman
San Francisco
CA, US
Dinah B Quiachon
San Jose
CA, US
Agent
Fulwider Patton Lee & Utecht
Assignee
EndoVascular Technologies
CA, US
IPC
A61M 39/00
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