Controlled orifice sampling needle

Details Controlled orifice sampling needle Controlled orifice sampling needle

2007-02-20

2007-02-20

Hindenburg, Max F. (Department: 3736)

Surgery

Diagnostic testing

Sampling nonliquid body material

C600S562000

Reexamination Certificate

active

10608774

ABSTRACT:
A bone marrow sampling device is provided, including an outer cannula having a sidewall with a plurality of openings and a distal tissue penetrating tip. An inner cannula is positioned within the outer cannula, and includes a sidewall with at least one opening. Selective relative movement of the inner cannula and the outer cannula enables the device to be configured in multiple bone marrow sampling modes in which the at least one opening in the sidewall of the inner cannula is aligned with different openings in the sidewall of the outer cannula such that bone marrow can be drawn into the inner lumen of the inner cannula from different radial and longitudinal positions external to the sidewall of the outer cannula without the need to reposition the outer cannula.

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