Deployable Bistable Auxetic Expandable Interbody Spacer
Summary
USPTO published patent application US20260090894A1 disclosing a deployable bistable auxetic expandable interbody spacer for spinal applications. The invention by Troxell, Paul, and Johnson enables medical implants to transition between stable planar and 3D configurations. Application No. 18899689 was filed September 27, 2024, and published April 2, 2026.
What changed
USPTO published patent application US20260090894A1 for a medical implant configured to transition between a first stable state and a second stable state. The implant includes first and second surfaces each configured to form stable planar shapes during the first state and stable 3D shapes during the second state. The auxetic design allows the interbody spacer to deploy from a compact configuration during insertion to an expanded configuration once positioned.
Medical device manufacturers and spinal implant developers should review this application to identify potential prior art or competing technologies. No compliance actions or deadlines apply as this is a published patent application rather than an enforceable regulation. The application remains pending examination by USPTO patent examiners.
Archived snapshot
Apr 2, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
DEPLOYABLE BISTABLE AUXETIC EXPANDABLE INTERBODY SPACER
Application US20260090894A1 Kind: A1 Apr 02, 2026
Inventors
Paden Troxell, David C. Paul, Norbert Johnson
Abstract
An implant can be configured to transition between a first stable state and a second stable state. The implant can include a first surface and a second surface coupled to the first surface. The first surface can include a first structure configured to form a stable planar shape during the first stable state of the implant and to form a stable three-dimensional (“3D”) shape during the second stable state of the implant. The second surface can include a second structure configured to form a stable planar shape during the first stable state of the implant and to form a stable 3D shape during the second stable state of the implant.
CPC Classifications
A61F 2/441 A61F 2/442 A61F 2002/30092
Filing Date
2024-09-27
Application No.
18899689
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