05250034 is referenced by 176 patents and cites 33 patents.

A catheter for introducing material into the vascular system is provided. The catheter includes an elongated catheter body having a side wall defining a catheter lumen. The catheter body has a proximal portion. Material can be introduced into the catheter lumen at its proximal portion. The catheter body has a distal portion. The distal portion has a single wall in an exit zone. At least one pressure responsive exit is formed in the side wall of the distal portion of the catheter body. The pressure responsive exit permits material to exit from the catheter lumen in response to a pressure over a first pre-determined amount while preventing material from entering into the catheter lumen at a pressure less than a second pre-determined amount.

Title
Pressure responsive valve catheter
Application Number
583466
Publication Number
5250034
Application Date
August 7, 1991
Publication Date
October 5, 1993
Inventor
Joseph J Bookstein
LaJolla
CA, US
Arthur L Zimmet
Centerport
NY, US
Daniel K Recinella
Hadley
NY, US
Famonn Hobbs
Queensbury
NY, US
William M Appling
Hartford
NY, US
Agent
McAulay Fisher Nissen Goldberg & Kiel
Assignee
E Z EM
NY, US
IPC
A61M 5/178
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