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Companies

Spineology

Expandable implants for minimally invasive spinal fusion

Raised to date

$12.6M

of $14.1M offered across 1 Form D filing

Still open
$1.4M
Investors
11
Last filed
Jun 17, 2026

About

Spineology is a St. Paul, Minnesota medical device company that designs and sells implants and instruments for minimally invasive spinal fusion surgery. Founded in 1997 by Dr. Stephen D. Kuslich, the company markets what it calls Ultra-MIS and Conform and Expand technology, built around the OptiMesh expandable interbody implant, which is delivered through a very small insertion profile, conforms to the patient's own endplate anatomy, and then expands in situ. OptiMesh received FDA De Novo clearance in 2020. The portfolio also includes the OptiLIF procedural systems, Elite Expandable and Rampart One implants, fixation hardware, and cortical fiber graft options.

OptiMesh is marketed as the only conforming, patient-specific expandable interbody implant on the market, going in through one of the smallest insertion profiles and expanding to one of the largest footprints, so surgeons conserve bone, nerve, and muscle tissue relative to conventional fusion cages.

Funding

  • EquityFiled Jun 17, 2026Form D/A
    $12.6M/ $14.1M

Product

OptiMesh

Interbody spinal fusion implant

An expandable interbody fusion implant delivered percutaneously through a small-diameter cannula, packed in situ with graft material so it conforms to the individual patient's endplate morphology before expanding to a large load-bearing footprint.

  • Conform and Expand design that adapts to patient-specific endplate anatomy
  • One of the smallest insertion profiles in interbody fusion, expanding to one of the largest footprints
  • FDA De Novo clearance granted in 2020

Built for

Spine surgeons and the hospitals and ambulatory surgery centers where they perform lumbar interbody fusion, plus the patients receiving those procedures

People on file