Patent · US Active

Oval dilator and retractor set and method

US7618431B2 · kind B2 · utility

89Cited by

25References

20Claims

0Family size

Assignee

Warsaw Orthopedic, Inc.

Inventors

Thomas E. Roehm, III · Braden, US
William B. Null · Olive Branch, US

Key dates

Filing date	Jun 29, 2006
Grant date	Nov 17, 2009
Priority date	—
Expiry date	Jan 12, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2017/3447
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Access to a greater area of surgical site with minimally invasive procedure is obtained by using two sets of sequentially placed tissue dilators oriented with their axes in a plane parallel to the spinal axis and a final non-circular dilator encompassing the two sets, followed by a non-circular tubular retractor providing a working channel extending longitudinally of the spine.

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