Surgery – Diagnostic testing – Sampling nonliquid body material
Reexamination Certificate
2008-08-26
2010-06-08
Hindenburg, Max (Department: 3736)
Surgery
Diagnostic testing
Sampling nonliquid body material
C600S562000, C600S564000, C600S566000, C600S568000, C606S167000, C606S170000
Reexamination Certificate
active
07731667
ABSTRACT:
A biopsy needle for removal of tissue from a patient including an outer tube; an inner tube within the outer tube; and a snare connected to the inner tube and to the outer tube. The outer tube has an outer surface that has a first region that terminates in the distal end and is the distalmost section of the outer tube and a second region adjacent the first region. The first region represents a tip transition region and has a frustoconical shape that is defined by an outer surface area (A) and is defined by a cross-sectional area (Ba) at the interface between the first and second regions in a direction that is perpendicular to the longitudinal axis of the needle, the interface representing a base of the frustoconical first region, wherein a ratio R=(A)/(Ba) is approximately 1 for a predetermined needle type, such as an 8 gauge needle.
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Hindenburg Max
Leason Ellis LLP
Lloyd Emily M
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