05158545 is referenced by 209 patents and cites 24 patents.

The present invention is a diameter expansion cannula apparatus which is used to establish fluid flow to a healthy blood vessel or to a diseased blood vessel. The cannula apparatus has a cannula which is coated with silicone and is formed of a braided construction which provides the cannula with an inherent resilience, yet allows the length of the cannula to become longer and the diameter of the cannula to become narrower when tension is applied along the longitudinal axis of the cannula. A peelable sheath is used to maintain the cannula in its elongated narrow state during insertion into a blood vessel. Removal of the sheath allows the cannula to return to its pre-tensioned diameter, thereby providing a radial force upon any obstruction within the blood vessel. The cannula apparatus is a self-contained unit which includes a sharpened point on the end of a balloon catheter to puncture the blood vessel of a patient and to assist the cannula in returning to its pre-tensioned diameter if any obstruction within the blood vessel prevents the cannula from returning to its pre-tensioned diameter.

Title
Diameter expansion cannula
Application Number
7/694949
Publication Number
5158545
Application Date
May 2, 1991
Publication Date
October 27, 1992
Inventor
Anthony D Whittemore
Sherborn
MA, US
Leonard A Trudell
East Greenwich
RI, US
Agent
Sterne Kessler Goldstein & Fox
Assignee
Brigham and Women s Hospital
MA, US
IPC
A61M 31/00
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