Expandable inter-vertebral cage and method of installing same

An intervertebral cage includes a plurality of segments that are connected together by one or more members formed from a shape memory alloy material such that the segments are automatically moved from an initial orientation before implantation/insertion in an intervertebral space to an expanded orientation after implantation/insertion in the intervertebral space. Each of the plurality of segments may have a plurality of passageways or recesses formed therethrough, and wherein a wire formed from a shape memory alloy material extends through each of the plurality of passageways or recesses. The member may be formed from a shape memory alloy material that demonstrates shape memory effects and superelasticity properties, such as nitinol.
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Abstract/Description: An intervertebral cage includes a plurality of segments that are connected together by one or more members formed from a shape memory alloy material such that the segments are automatically moved from an initial orientation before implantation/insertion in an intervertebral space to an expanded orientation after implantation/insertion in the intervertebral space. Each of the plurality of segments may have a plurality of passageways or recesses formed therethrough, and wherein a wire formed from a shape memory alloy material extends through each of the plurality of passageways or recesses. The member may be formed from a shape memory alloy material that demonstrates shape memory effects and superelasticity properties, such as nitinol.
Subject(s): A61F2/30
A61F2/44
Date Issued: 2020-11-10
Title: Expandable inter-vertebral cage and method of installing same.
Name(s): Agarwal, Anand K., inventor
Goel, Vijay K., inventor
Agarwal, Aakash, inventor
Dick, David, inventor
The University of Toledo, assignee
Type of Resource: text
Genre: patent
Date Issued: 2020-11-10
Other Date: Date Filed: 2014-07-18
Publisher: United States Patent and Trademark Office
Physical Form: application/pdf
Extent: 23 p.
Abstract/Description: An intervertebral cage includes a plurality of segments that are connected together by one or more members formed from a shape memory alloy material such that the segments are automatically moved from an initial orientation before implantation/insertion in an intervertebral space to an expanded orientation after implantation/insertion in the intervertebral space. Each of the plurality of segments may have a plurality of passageways or recesses formed therethrough, and wherein a wire formed from a shape memory alloy material extends through each of the plurality of passageways or recesses. The member may be formed from a shape memory alloy material that demonstrates shape memory effects and superelasticity properties, such as nitinol.
Identifier(s): utpatents-US10828171 (IID)
Patent No.: US10828171 (patno)
Appl. No.: 14/904224 (appno)
Subject(s): A61F2/30
A61F2/44
Held by: United States Patent and Trademark Office (USPTO) Public Search Facility
Location: University of Toledo Digital Repository
Rights Statement: No Copyright - United States
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