Surgical knife
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United States of America Patent
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Dec 5, 2006
Issued Date -
N/A
app pub date -
Jul 29, 2003
filing date -
Jul 29, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A knife having a blade tip configuration that reduces incisional force by providing a more efficient distribution of tissue piercing and cutting forces over the cutting edges. The distal tip of the blade has a profile in plan view in the region of approximately 150 microns from the distal most point of the tip that may be described by the equation w=ad.sup.n, where w is the distance from the blade's longitudinal axis to the blade's cutting edge, a is a constant of proportionality not greater than 0.5 and d is the distance along the blade's longitudinal axis from the extreme distal point of the blade tip. The extreme distal point of the tip has a slightly rounded, rather than pointy, profile, with a tip radius of approximately 40 microns or less.
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