Puncture instrument

Details Puncture instrument Puncture instrument

1995-02-14

1998-09-22

Thaler, Michael H.

Surgery

Instruments

Orthopedic instrumentation

606180, 128754, A61B 1716

Patent

active

058108262

ABSTRACT:
A device for puncturing cortical bone. The device consists of a cannula and inside of it an axially movable needle. The distal end of the needle has an eccentrically shaped tip which, by drilling, forms a hole, larger than the outer diameter of the needle, through corticalis, whereupon the enclosing cannula can be inserted into the drilled hole. In this way the cannula's position in the bone is secured and the cannula functions as a fixed anchored guiding channel for further sampling or treatment.

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