Flexible tip medical instrument

Details Flexible tip medical instrument Flexible tip medical instrument

2006-04-11

2010-11-30

Hindenburg, Max (Department: 3736)

Surgery

Diagnostic testing

Sampling nonliquid body material

Reexamination Certificate

active

07841990

ABSTRACT:
A biopsy device includes a flexible distal portion for obtaining a biopsy sample. The device includes a coring cannula defining a coring relief notch adjacent its distal end having a length longer than a diameter of the cannula. A wire is slidably disposable within the lumen of the coring cannula and defines a sampling cavity adjacent its distal end. A wire relief notch is positioned adjacent the sampling cavity that has a length longer than its width. A firing mechanism engaged to the proximal ends of the coring cannula and the wire is operable to move the coring cannula relative to the wire between a first position retracted within the lumen so that the coring cannula covers the sampling cavity and a second position wherein the distal end of the wire is extended away from the coring cannula to trap tissue from the biopsy site in the cavity.

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