Methods and apparatus for tissue removal

Patent Number: 9386966

Patent Date: 2016-07-12

Patent type: utility

A tissue removal apparatus and needle assembly for extracting a tissue portion from tissue or the like, the needle assembly comprising an inner tube having an interior cavity, an outer cannula having a proximal end, a distal end and an interior cavity, the interior cavity of the outer cannula having an interior diameter to slidably receive the inner tube and a collapsible section operably engaged with the inner tube and the outer cannula whereby a forward movement of a portion of the inner tube within the interior cavity of the outer cannula changes the collapsible section from a neutral position to a collapsed position to engage the tissue portion. A method of tissue removal comprising the steps of positioning a needle assembly in a tissue, engaging a tissue portion and withdrawing the needle assembly to remove the tissue portion from the tissue.

Inventors

First Name Last Name City State Country
Thomas R. Johnson - - -
Hugh Tripp - - -

IPCs

Section Class Sub Class Group Sub Group
A 61 B 5 00
A 61 B 10 02
A 61 B 17 00
A 61 B 17 34

Assignee

Organization First Name Last Name City State Country
Theragenics Corporation - - - - -