Surgery – Diagnostic testing – Sampling nonliquid body material
Reexamination Certificate
2004-12-29
2009-11-03
Hindenburg, Max (Department: 3736)
Surgery
Diagnostic testing
Sampling nonliquid body material
C600S564000, C600S567000, C606S167000
Reexamination Certificate
active
07611474
ABSTRACT:
A core sampling biopsy device is compatible with use in a Magnetic Resonance Imaging (MRI) environment by being driven by either a pneumatic rotary motor or a piezoelectric drive motor. The core sampling biopsy device obtains a tissue sample, such as a breast tissue biopsy sample, for diagnostic or therapeutic purposes. The biopsy device may include an outer cannula having a distal piercing tip, a cutter lumen, a side tissue port communicating with the cutter lumen, and at least one fluid passageway disposed distally of the side tissue port. The inner cutter may be advanced in the cutter lumen past the side tissue port to sever a tissue sample. A cutter drive assembly maintains a fixed gear ratio relationship between a cutter rotation speed and translation speed of the inner cutter regardless of the density of the tissue encountered to yield consistent sample size.
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EPO Search Report, Application No. 05258079.2, Mar. 28, 2006, pp. 1-5.
Bullen Lawrence
Contini Vincent J.
Dvorsky James E.
Hibner John A.
Navin Eric R.
Ethicon Endo-Surgery Inc.
Foreman Jonathan M.
Frost Brown Todd LLC
Hindenburg Max
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