04708147 is referenced by 156 patents and cites 16 patents.

A cannula for a biopsy needle is provided with an axially and circumferentially open end forming cutting edges for severing tissue upon insertion or rotation at a lesion side. Concentric cannulas may be used for electively performing end cutting biopsy sampling or side cutting biopsy sampling with a single instrument.

Title
Universal biopsy needle
Application Number
625356
Publication Number
4708147
Application Date
December 19, 1986
Publication Date
November 24, 1987
Inventor
John R Haaga
3409 N. Hilltop, Chagrin Falls, 44022
OH, US
Agent
Body Vickers & Daniels
IPC
A61B 10/00
View Original Source