3788318 is referenced by 198 patents and cites 6 patents.

An expandable tube, referred to herein as a cannula, is formed by arranging at least one sheet of thin flexible material to form a tube while providing teeth or the like on the interengaging surfaces to permit controlled expansion of the tube by adjusting the surfaces over one another.

Title
Expandable cannular, especially for medical purposes
Application Number
05/261,793
Publication Number
3788318
Application Date
June 12, 1972
Publication Date
January 29, 1974
Inventor
Dusseau Andress
Kim Sung Soo
Agent
Rickert Roger M
Jeffers Albert L
IPC
A61m 05/00
A61M 25/06
A61B 17/34
A61M 05/00
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