US7530993B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Method of spinal fixation

Assignee: Mis IP Holdings LLC

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Filing: 2004-10-22

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Granted: 2009-05-12

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Expires: 2024-10-22

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Abstract

Abstract Surgical tools, tool sets and methods for percutaneously accessing and preparing treatment sites within the spine. A method of treating the spine, comprising the steps of percutaneously accessing an anterior target site on the surface of the sacrum, forming a lumen from the access site through the sacrum, through a disc and into at least one vertebra, advancing a fusion device comprising a distal portion, a proximal portion and an intermediate portion between the distal and proximal portion through the anterior target site on the surface of the sacrum and into the spine, rotating the distal portion of the device into a superior vertebral body and the proximal portion of the device in an inferior vertebral body to increase a distance between the superior and inferior vertebral bodies, and inserting through a percutaneous access site a posterior column fixation device into the spine.

Inventors

👤 Robert L. Assell
👤 Steven D. Ainsworth
👤 Andrew H Cragg

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-23 13:37

CPC Classifications

A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7074; A61B17/02; A61B17/025; A61B17/88; A61B17/16; A61B17/1604; A61B17/1662; A61B17/1671; A61B17/1697; A61B17/17; A61B17/1739; A61B17/1757; A61B17/22; A61B17/84; A61B17/86; A61B17/8605; A61B17/861; A61B17/8615; A61B17/8875; A61B17/8877; A61B17/888; A61B17/8886; A61B17/8888; A61B17/92; A61B17/0218; A61B17/1613; A61B17/1615; A61B17/8897; A61B17/00234; A61B2017/00238; A61B2017/00261; A61B2017/0046; A61B2017/00469; A61B2017/0256; A61B2017/22038; A61B2017/22042; A61B2017/22044; A61B17/34; A61B17/3417; A61B17/3421; A61B2017/3445; A61B2017/922

Claims Analysis

Total Claims: 5

Claim 1

Independent Claim 127 words

A method of treating the spine, comprising the steps of: percutaneously accessing an anterior target site on the surface of the sacrum; forming a lumen from the access site through the sacrum, through a disc and into at least one vertebrae; advancing a fusion device comprising a distal portion, a proximal portion and an intermediate portion between the distal and proximal portion through the anterior target site on the surface of the sacrum and into the spine; rotating the distal portion of the device into a superior vertebral body and the proximal portion of the device in an inferior vertebral body to increase a distance between the superior and inferior vertebral bodies, and inserting through a percutaneous access site a posterior column fixation device into the spine.

Claim 2

Independent Claim 127 words

Claim 3

Dependent Claim 35 words

The method of claim 1 , wherein the step of inserting through a percutaneous access site a posterior column fixation device into the spine comprises inserting a facet screw into a facet of the spine.

Claim 4

Dependent Claim 35 words

The method of claim 1 , wherein the step of inserting through a posterior access site a posterior column fixation device into the spine comprises inserting a pedicle screw into a pedicle of the spine.

Claim 5

Dependent Claim 16 words

The method of claim 1 further comprising inserting a bone growth material into a disc space.

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USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2012-05-11	2012-11-10	2013-05-12	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2016-05-11	2016-11-10	2017-05-12	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2020-05-11	2020-11-10	2021-05-12	$7700.00	Window Closed / Lapsed

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