Robert Assell

Zyga Technology, Inc. develops novel technology for resurfacing the facet and zygapophyseal joints. It engages in the development minimally invasive surgical solutions to treat common but underserved painful conditions of the spine. The firm offers GLYDER Facet Resurfacing System, an investigational device and is intended exclusively for clinical investigations. The company was founded by Robert Assell in March 2008 and is headquartered in Minneapolis, MN.

Fortus Medical, Inc. manufactures medical apparatus and instruments for aspirating bone marrow. The company was founded by Robert L Assell in 2011 and is headquartered in Minneapolis, MN.

TranS1, Inc. designs and develops surgical procedures and equipment for back pain. It is a medical device company focused on designing, developing and marketing products that implement its proprietary approach to treat degenerative conditions of the spine affecting the lower lumbar region. TranS1 currently markets the AxiaLIF family of products for single-level and two-level lumbar fusion and the Vectre and Avatar posterior fixation systems for lumbar fixation supplemental to AxiaLIF fusion. Its primary technology is AxiaLIF, a minimally invasive access and fusion system that enables lumbar fusion to be performed with complete preservation of the annulus and all paraspinal soft tissue structures. The company specializes in bringing innovative spine solutions to market, including AxiaLIF and AxiaLIF 2L+, technologies that allow surgeons to perform lower lumbar fusions that result in high fusion rates and low complication rates. The company is also developing a motion preservation platform to be delivered through this minimally invasive, trans-sacral approach. TranS1 was founded in May 2000 and is headquartered in Wilmington, NC.