Patent · US Active

Surgical tool for use in expanding a cannula

US7682370B2 · kind B2 · utility

106Cited by

71References

19Claims

0Family size

Assignee

Zimmer Spine, Inc. · US

Inventors

James J. Pagliuca · Mashpee, US
John D. Unger · Wrentham, US
James Robbins · El Granada, US
Thomas W. Davison · Naples, US
Adam Sher · Attleboro, US

Key dates

Filing date	Sep 19, 2003
Grant date	Mar 23, 2010
Priority date	—
Expiry date	Jun 12, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2017/0046
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A surgical tool for use in expanding a tubular structure having an inner surface defining a passage through the tubular structure for receiving surgical instruments includes a first leg having a first end engageable with the inner surface of the tubular structure. A second leg has a second end engageable with the inner surface of the tubular structure. The first and second ends are movable away from each other to apply a radially outwardly directed force to the inner surface of the tubular structure and cause expansion of the tubular structure to increase a cross-sectional area of the passage along a portion of the passage.

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