Patent · US Active

Vertebral spreading instrument comprising markers

US8043295B2 · kind B2 · utility

36Cited by

12References

15Claims

0Family size

Assignee

Brainlab AG · DE

Inventors

Pete Reed · Cincinnati, US
Claus Schaffrath · Birkenfeld, DE
Gerhard Kleinszig · Forchheim, DE
Gunther Becht · Füssen, DE

Key dates

Filing date	Oct 27, 2005
Grant date	Oct 25, 2011
Priority date	—
Expiry date	Sep 8, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2034/2055
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A vertebral spreading instrument for moving apart two vertebrae of a spine includes a plurality of spreading fingers and a spreading mechanism for adjusting a distance between the spreading fingers. The spreading mechanism includes a first and a second part, the first and second parts each including a respective marker trackable by a navigation system. Relative positions of the first and second parts change when the distance between the spreading fingers is adjusted, and different relative positions are unequivocally assigned to different distances of the spreading fingers.

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