Patent · US Active

Method and apparatus for performing spinal surgery

US8535320B2 · kind B2 · utility

52Cited by

154References

21Claims

0Family size

Assignee

NuVasive, Inc. · US

Inventors

Troy B. Woolley · Erie, US
Nathan Lovell · Oceanside, US
Michael Serra · San Diego, US
Mark Peterson · Lake Oswego, US

Key dates

Filing date	Aug 5, 2011
Grant date	Sep 17, 2013
Priority date	—
Expiry date	Aug 5, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2017/0256
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Instruments and methods for creating an operative corridor to the spine are described. The instruments include, for example, a retractor assembly with at least one retractor blade that may be releasably coupled to a bone anchors via a hoop shim. The hoop shim includes a shim portion that may slidably engage the retractor blade and a hoop portion extending from the shim portion that includes an aperture that receives the bone anchor. The hoop portion may have an unlocked configuration that allows passage of the bone anchor and a locked position which prevents passage of the bone anchor to releasably couple the hoop shim to the bone anchor. The hoop shim may be configured to couple to the bone anchor such that the hoop shim may angulate relative to the bone anchor.

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