Patent · US Active

Surgical knife

US7601163B2 · kind B2 · utility

2Cited by
8References
16Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 19, 2006
Grant dateOct 13, 2009
Priority date—
Expiry dateMar 17, 2027

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61B2017/32116
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

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 that may be described as bounded by the following equations w=5.886(d)0.663 and w=1.561(d)0.820 where w is the distance in microns from the blade's longitudinal axis to the blade's cutting edge and d is the distance in microns 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 pointed, profile, with a tip radius of approximately 40 microns or less.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.