Title:
Drainage tube with means for scraping away debris therewithin
United States Patent 3416532


Inventors:
Richard, Grossman Alan
Application Number:
US38491864A
Publication Date:
12/17/1968
Filing Date:
07/24/1964
Assignee:
ALAN RICHARD GROSSMAN
Primary Class:
Other Classes:
604/45, 604/268
International Classes:
A61M1/00
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US Patent References:
2642873Aspirating trocar1953-06-23
2614563Surgical apparatus for intestinal intubation1952-10-21
2525329Trocar apparatus1950-10-10
0985865N/A1911-03-07